FORM2
THE PATENTS ACT, 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)
1. Title of the invention: A BIPOLAR ELECTROSURGICAL DEVICE AND
SYSTEM FOR VESSEL SEALING
2. Applicant(s)
(a) NAME: LARSEN & TOUBRO LIMITED
(b) NATIONALITY: An Indian Company
(c) ADDRESS: L & T House, Ballard Estate, Mumbai 400 001,
State of Maharashtra, India and also having a place of business named as "Medical Equipments & Systems" at Gate No. 5, Mysore Campus, KIADB Industrial Area, Hebbal, Mysore - 570018, Karnataka, India
3. PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed:

FIELD OF THE INVENTION
The present invention relates to the field of electro-surgery where vessel sealing is being conducted in open surgery as well as for endoscope surgeries. Particularly, the present invention relates to a bipolar device adapted for sealing of vessel with less than 3 mm diameter. More particularly, the present invention relates to a system having the bipolar device adapted for vessel sealing.
BACKGROUND AND PRIOR ART OF THE INVENTION
During surgery there is a need to cut open the various body parts, remove the infected or diseased parts. While isolating these body parts there is a need to cut the various arteries and veins that supply the blood to and from the organ, which has to be operated. It is not possible to use the conventional spray or coagulating electrodes, which are more effective on a large area rather than pinpointing a specific blood vessel. Conventionally and before the advent of electrosurgical equipments the blood vessels were immediately clamped to stop the blood flow and suturing was done using threads and needle system.
Once the electrosurgical generators were available in the market these conventional clamps and threads were replaced by electrode clamps, which will hold the blood vessel so that the blood will not ooze out. The two jaws of the clamps will be electrically isolated using an insulated washer or bush in case of a technique
Known in the prior art as "bipolar vessel sealing ". At the same time a high frequency AC power having a voltage of several hundreds of volts, was applied between the two electrically isolated upper and lower jaw of the clamp. Because of this an electrical RF current used to flow through the blood vessel to be sealed since human body is a conductor of electricity.

Due to the electrical resistance offered by the blood vessel the clamped vessel part was heated up. The blood was coagulated sealing the both sides of the blood vessel. With this cutting the vessel into two was easy and bloodless compared to the conventional surgery.
There are numerous bipolar forceps, scissors and clamps available from various medical industry leaders from all over the world. For example BOWA Germany is marketing a tissue-sealing handle under the part number 760-019, 816/812-00139. For example Valley Lab is marketing a surgical steel electrode.
During the open or endoscope surgery there are need to cut open the various body parts, remove the infected or diseased parts. While isolating these body parts there is a need to cut the various arteries and veins that supply the blood to and from the organ, which has to be operated. It is not possible to use conventional spray or coagulating electrodes, which are more effective on a large area rather than pinpointing a specific blood vessel. Conventionally and before the advent of electrosurgical equipments the blood vessels were immediately clamped to stop the blood flow and suturing was done using threads and needle system.
Traditional way of closing a blood vessel is to hold a blood vessel which is intended to be cut with a piece of miniature clamp (Metal or plastic) so as to have a very high pressure being applied on the blood vessel leading to its complete closure and not allowing the blood to flow through it. Once the blood vessel is hold in such clamp, the blood vessel is sutured at either of the side of the metal clamp such that the entire diameter of the blood vessel gets closed firmly. After this the blood vessel is cut open and the clamp is released thus accomplishing the job of closing the blood vessel.
This is the traditional way of closing the blood vessel and is used since ancient days long before the invention of modern surgical equipments and tools. But this traditional technique was time consuming and so the time taken to complete the entire operation was very big.
With the invention of Electro-cautery and especially electro-surgery, the surgeons were highly relieved and they could stop the bleeding of the body parts by means of thermal heating resulting due to the opposition to the flow of electric RF-radio frequency or high frequency HF current.

Early electrosurgical units were equipped with only mono-polar modes and so it required that the patient return current electrode to be placed below the patient. While cutting the tissue the active electrode was directly contacted to the tissue to be cut and the electrosurgical unit was activated to cut the tissue.
In case of coagulation the Doctor used a haemostatic forceps, which is a forceps with a ratchet arrangement. The bleeding blood vessel is held in the forceps and ratchet is locked so as to have a tremendous pressure being applied on the blood vessel. The mono-polar electrosurgical electrode is activated for getting HF power and then touched to the haemostatic forceps, which is holding the bleeding blood vessel. This leads to the bleeding to stop following, which the blood vessel, which is closed, can be removed out of the haemostatic forceps. This procedure of coagulation of the blood vessel by means of Haemostatic Forceps is known as "Buzzing of the Hemostat".
With the advancements which took place in electro-surgery additional to mono-polar electro-surgery, Bipolar electro-surgery was discovered wherein no patient return electrode is required and thus the entire HF current does not pass through the body of the patient but passes only though the tissue which is hold in the prongs of the bipolar forceps. Thus a special bipolar forceps was used by which the doctor could hold a bleeder and activate for bipolar power through footswitch so as to stop the bleeder. The surgeon usually manually controls this activation and deactivation of the bipolar power and there is no monitoring done by the electrosurgical unit whether at bleeder has optimally got closed.
Bipolar coagulation forceps underwent further advancement in the recent days and the haemostatic forceps described above which was used in mono-polar electro-surgery was designed with special insulation between its two prongs so as to a bipolar forceps in the form of haemostatic forceps which could be given 2 inputs from the bipolar output of the electrosurgical unit.

Also additionally the electrosurgical unit was developed with such a technology that the temperature at the surgical site could be continuously monitored in terms of the impedance between the 2 prongs of the bipolar forceps, which in-term could be monitored by the magnitude of current flowing between the two prongs of the bipolar coagulation forceps, and once the temperature reached a particular value the power delivery from the electrosurgical unit will be stopped, thus monitoring whether the bleeder has got closed or not. This relieved the Doctors and the technology got the generic name as "Vessel Sealing System".
This included a haemostatic forceps used in conjunction with bipolar coagulation (Thus requiring insulation between the 2 prongs not unlike mono-polar haemostatic forceps) to hold the Blood vessel to be sealed under pressure due to ratchet arrangement, following which the foot switch could activated to start delivering the bipolar coagulation power during which the temperature at the surgical site will be continuously be monitored and once the temperature reaches a predefined limit the power delivery will automatically stop.
It was observed in the field that many Doctors used "Micro dissecting forceps" to hold the bleeder and then the mono-polar electrosurgical pencil is touched in activated condition, to close the bleeder. This is a very crude and makeshift method employed by many of the medical fraternity since no suitable device is available.
Such doctors do not prefer the large sized haemostatic forceps available in the market at present and they very conveniently carry on the "Buzzing procedure" by means of the above-mentioned micro dissecting forceps. This forceps has both its prongs meeting together at one end and acting as a hinge point once the doctor presses the prongs of the forceps to hold the blood vessel pressure present at the tip under pressure.
The new accessory is developed such that the two prongs of the forceps will not meet each other and instead enter in one end of a round cylindrical socket which has a high dielectric material to isolate the prongs and come out of the other side of the electrode so as to form 2 electrodes to

which the bipolar vessel sealing power can be delivered. Additionally there will be a different kind of a ratchet arrangement so that the blood vessel can again be hold under pressure. Also a "ratchet release" knob will release the ratchet with convenience.
US 6743229 discloses a bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow accurate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together.
US 7118570 discloses a removable electrode assembly for use in combination with a forcep having opposing end effectors and a handle for effecting movement of the end effectors relative to one another. The electrode assembly includes a housing which is removably engageable with the forceps and a pair of electrodes which are attachable to a distal end of the housing.
US 7473253 discloses an endoscopic bipolar forceps for sealing and dividing tissue includes an elongated shaft having opposing jaw members at a distal end thereof. The jaw members are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue there-between.
US 7666182 relates to a high-frequency surgical apparatus in which, for the purpose of cutting and/or coagulating biological tissue by means of high-frequency current, a high-frequency generator having a first electrode and a second electrode forms a high-frequency circuit through the tissue being treated, with an electric arc being formed, said apparatus having a measuring device to detect DC voltage components forming in the high frequency circuit when the arc is formed, said DC voltage components being usable for controlling the high-frequency generator via a controlling device.

US 7766693 discloses a connector system for coupling electrosurgical instruments to electrosurgical generators is provided. The connector system includes a plug portion connectable to an electrosurgical instrument, the plug portion of the electrosurgical instrument having a shape specific to a particular manufacturer; and a plug receptacle portion supported on the electrosurgical generator; the plug receptacle portion being shaped to receive the plug portion of the electrosurgical instrument of the particular manufacturer and the plug portion of the electrosurgical instrument of any other manufacturer.
US 2010/0100122 discloses a forceps for sealing tissue includes a housing a having one or more shafts that extend there from configured to support an end effect or assembly at a distaJ end thereof. The end effect or assembly includes a pair of opposing jaw members each having a sealing plate with tissue engaging surfaces adapted to connect to an electrosurgical energy source. At least one of the sealing plates includes a predetermined surface geometry defined thereon that imprints a corresponding surface geometry onto the tissue seal to facilitate sealing the tissue with a foreign material when electrosurgical energy is applied to the forceps.
The drawbacks of the above mentioned prior art is that the contemporary bipolar vessel sealing accessories manufactured by various industry leaders are bigger in size, useful for accessing bigger sized organs and blood vessels, expensive. Some of the bipolar forceps does not come with insulating handle leading to frequent electrical shocks to the surgeon and the OT staff.
Many times the doctors use smaller bare metal forceps to access micro vessels and use conventional mono-polar needle electrodes of ESU to touch the forceps. This will complete the mono-polar circuit with patient plate underneath the patient. This is a very crude and makeshift method employed by many of the medical fraternity since no suitable device is available. The prior art scissors and forceps exert pressure on the midway at the joint. The buzzing procedure done in prior art accessories by two surgeons. For the similar mono-polar and bipolar forceps found in the market, the impedance detection and stopping of power to the vessel is not done. The surgeon will visually observe the sealing and manually stop the "buzzing procedure".

Thus there is a need to provide a device that will make the vessel sealing safer since the size is small, the electrical contacts with adjacent organs will be avoided, lesser surgeons will be needed to perform the operation; the electrical shocks to the surgeons and caregivers will be avoided. Further the pressure needs to be exerted at the tip of the forceps and a single surgeon needs do the vessel sealing. The electrical shock to the surgeons and other staff in the OT should be avoided. The bipolar accessories manufactured should be lower in cost compared to the similar accessories available in the market right now. Also there is a need for a system where the impedance is monitored and power delivery is stopped automatically. Also a need for a bipolar forceps, which is electrically insulated, leading to, enhanced safety.
The present device and system deals with an introduction to a new set of accessories which are entirely different in its construction compared to vessel sealing accessory (Next generation of Haemostatic Forceps) and also convenient for the doctors to use compared to the vessel sealing accessories.
The present inventor invented a device that will solve the above-mentioned problems/drawbacks and will place a more economical, miniature and ergonomic bipolar vessel-sealing device on surgeon's hand.
OBJECTS OF THE INVENTION
One object of the present invention is to overcome the disadvantages / drawbacks of the prior art.
A basic object of the present invention is to provide a bipolar device adapted for sealing of vessel with less than 3 mm diameter.
Another object of the present invention is to provide a system having the bipolar device adapted for vessel sealing.
Yet another object of the present invention is to provide a device and a system for sealing of vessel having enhanced safety, reduced size, cost effective and less number of surgeons involved.

These and other advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.
SUMMARY OF THE INVENTION
According to one of the embodiments of the present invention there is provided a bipolar device for vessel sealing, said device comprising
a pair of strip means, said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end, said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of socket means , said each socket means positioned substantially on the edge of said open end of said flat strip adapted to initiate the current flow in vessel sealing, said socket means comprising a pair of sliding contact means substantially placed inside said socket means;
a pair of prong means , said each strip means placed substantially adjacent to each other , said each prong means accommodates inside said each sliding contact means at one end and the other end is open;
a pair of metal means, said each metal means having substantially large surface area , said metal means is welded or riveted on the inner side of said open end of said prong means , said metal piece being parallel to said prong means;
a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;

a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;
a ratchet arrangement adapted to control the movement of said pair of prongs and strip means .
According to another embodiment of the present invention there is provided a bipolar device for vessel sealing, said device comprising
a pair of strip means , said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end , said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of metal means having substantially large surface area, said each metal means is substantially welded or riveted on the inner side of said open end of said strip means, said metal piece being parallel to said strip means;
a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;
a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;
a ratchet arrangement comprising a pair of bracket means.
According to yet another embodiment of the present invention there is provided a bipolar system for vessel sealing, said system comprising:
a generator adapted to generate high frequency current/power;

a controller means operatively connected with said generator means adapted to control the flow of high frequency current/power and deliver the power to the blood;
a footswitch means operatively connected with said controller means adapted to start the operation of vessel sealing by delivering power from said generator;
feedback means operatively connected with said generator means adapted to provide change in the HF current being delivered to the blood vessel;
filtering means operatively connected with said feedback means adapted to process the said current signal;
converter means operatively connected with said filtering means adapted convert the current signal into voltage signal;
A/D converter means operatively connected with said controller means;
visual means operatively connected with said controller means adapted for visual alarm or indication to alert the caregiver;
audio means operatively connected with said controller means to alert the caregiver/surgeon that effective vessel sealing has taken place;
such that said controller means is operatively connected with said converter means adapted to monitor the output of the current feedback such that when it exceeds a set threshold voltage set internally to said controller, it immediately stop delivery of power through said generator means and give an audio-visual alarm indication to indicate to the caregiver/surgeon that effective Vessel Sealing has taken place.

DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a bipolar device and system for vessel sealing. The device contains two metal strips. The prongs of the device are electrically insulated using suitable bush, spacer, injection molding, washer or similar parts. The device is used to seal blood vessels of diameter more than 0.5mm and up to 3 mm diameter.
According to the first embodiment of the present invention there is provided a bipolar device for vessel sealing.
The device having a pair of strip means where each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile where each strip means having an open end and a tapered end and the tapered end is diametric to the open end , a spacer means substantially placed in-between the pair of tapered end to bound the pair of tapered end together, a pair of socket means where each socket means positioned substantially on the edge of the open end of the flat strip adapted to initiate the current flow in vessel sealing where the socket means having a pair of sliding contact means substantially placed inside the socket means, a pair of prong means where each strip means placed substantially adjacent to each other and each prong means accommodates inside each sliding contact means at one end and the other end is open , a pair of metal means where each metal means having substantially large surface area and the metal means is welded or riveted on the inner side of the open end of the prong means where the metal piece being parallel to the prong means , a pair of blade means where each blade means welded/riveted substantially below the pair of metal piece means adapted to cut vessels , a pair tube means where each tube is press fitted along the outer surface of the strip means and prong means and the pair of tube means is hollow, a ratchet arrangement for controlling the movement of the pair of prongs and strip means.
The strip means includes electrically conductive material adapted to make the strip means conductive. The conductive material is selected from ASTM 316 L grade stainless steel, 304 grade steel, brass, titanium, platinum, carbon composites , conductive polymer and like. On its outer surface of strip means is of insulated material.

The two prongs of the device are electrically connected to an extension cable having at least two metal means. These metal means are in turn connected to a high frequency high voltage generator. The prong means is made from exotic material like marine steel, surgical steel, titanium, platinum etc. One such material is ASTM 316 L grade steel, which is known in the art for its rust proof, non-sticky, long mechanical life properties.
The socket means is insulated. The spacer of the system comprises clamp means and clamp means is electrically insulated.
The device further comprising plurality of pin substantially protruding from the clamp means, The sliding contact means is of insulated material. The strip means and the prong means are electrically isolated during non-working conditions. Further the prong means is disposable.
The pair of tube means as disclosed above where one of the tube means of the two adapted for insulation and suck the smokes generated during vessel sealing procedure where tube means comprising a nozzle means substantially at the top of the tube means for absorbing these fumes. The tube is selected from silicon rubber. The tube means together with nozzle means adapted to dispose surgical gases such as Argon, Carbon dioxide and like.
Further another tube means comprising an optical lens means substantially at the top of the tube means to carry pin pointed hi-intensity light and disperse through the optical means. As disclosed another tube is selected from plastic fiber-optic tube.
The metal means as disclosed above is substantially rectangular having longitudinal serrations/wavy or straight knurls or diamond knurled top surface/at its tip. The longitudinal serrations/wavy or straight knurls or diamond knurled selected from gold, Teflon or other non-sticky material so that disengaging the device once the vessel sealing is done will be easier.
Thus the tip of the prongs will be serrated or wavy shaped. The benefits are large surface area to distribute the electric current and reduction of local charring and a better mechanical grip over the blood vessel to be sealed.

The strip means has electrical isolation of at least 1500 volt DC and up to 5000 volt DC.
The device further comprising optionally a spring means placed substantially between the pair of strip means to assist the strip means to bounce back to their resting position. The two strip means is separated by a spring means to give resilience to the device so that upon releasing the pressure from the two strip means or release of a ratchet will make the device to gain its original position thus releasing the clamped vessel.
The spring means can also be avoided by heat or induction tempering without the addition of the spring. The induction tempering or heat tempering will make the pair of strip means act like natural beam springs.
The ratchet arrangement comprising a screw means, a pair of cavity means placed on the strip means and below the socket means and a circlip means substantially placed on one of the side of the prong means where the circlip means is located diametric to the screw means and the cavity means.
The screw means comprising plurality of knurl means at the top of the screw means where the knurl means are diamond shaped, plurality of thread means below the knurls means to provide grip and precision movement of the pair of prong means inwards and outwards.
Each cavity means comprising a threaded socket means adapted to operatively connect the plurality of thread means into the threaded socket and prevent the fall of the screw means , a body means on which the threaded socket means is placed where the body means is having width of atleast two times greater than the width of strip means , plurality of serration on the body means adapted for firm grip for fingers of surgeon and a cover means enclosing the body means adapted to give a firm grip and electrical insulation.
The body means is selected from metal part. The serration is selected from plastic, metal and the like. The circlip means substantially placed on one of the side of the prong means to operatively get connected with the screw means to prevent the fall-off of the thumbscrew from thread means.

The device further comprising a thermistor means operatively connected with one of the metal means adapted to monitor the temperature of the tip of the prong means.
The thermistor means comprising an extension cable accommodated/encapsulated longitudinally within the prong means where the strip means, the spacer means and the pin means for changing electrical resistance linearly according to the change in the thermistor body temperature.
According to the second embodiment the present invention there is provided a bipolar device for vessel sealing. The device is seal blood vessels of diameter more than 0.5mm and up to 3 mm diameter.
The device comprising a pair of strip means where each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile and each strip means having an open end and a tapered end where the tapered end is diametric to the open end, a spacer means substantially placed in-between the pair of tapered end adapted to bound the pair of tapered end together , a pair of metal means having substantially large surface area where each metal means is substantially welded or riveted on the inner side of the open end of the strip means where the metal piece being parallel to the strip means, a pair of blade means where each blade means welded/riveted substantially below the pair of metal piece means to cut vessels , a pair tube means where each tube is press fitted along the outer surface of the strip means and the prong means where the pair of tube means is hollow and a ratchet arrangement comprising a pair of bracket means.
The bracket means comprising a metal bracket means placed on one of the strip means where the metal bracket means comprising a rod means having toothed profile where the rod means substantially fixed normal to the plane of strip means, a slotted metal bracket means placed on another metal strip means where the slotted metal bracket means having a slot substantially at its middle such that the rod means enters into the slot means and a locking means operatively connected with the slotted metal bracket means having plurality of blunt edges adapted to accommodate inside the tooted profile of rod means.

The locking means comprises spring means adapted for suitable motion.
The strip means includes electrically conductive material adapted to make the strip means conductive. The conductive material of the strip means is selected from ASTM 316 L grade stainless steel, 304 grade steel, brass, titanium, platinum, carbon composites , conductive polymer and the like.
The strip means further comprises of insulated material on its surface.
The metal means comprises longitudinal serrations/wavy or straight knurls or diamond knurled top surface/at its tip. The longitudinal serrations/wavy or straight knurls or diamond knurled selected from gold, Teflon or other non-sticky material so that disengaging the device once the vessel sealing is done will be easier.
Here instead of triangular tooth shape conical tooth are used to have a better grip whenever need arises.
Thus the tip of the prongs will be serrated or wavy shaped. The benefits are large surface area to distribute the electric current and reduction of local charring and a better mechanical grip over the blood vessel to be sealed.
The metal means can also comprise triangular tooth shape conical tooth are used to have a better grip-According to the third embodiment the present invention there is provided a bipolar device for vessel sealing. The system comprising a generator adapted to generate high frequency current/power , a controller means operatively connected with the generator means adapted to control the flow of high frequency current/power and deliver the power to the blood , a footswitch means operatively connected with the controller means adapted to start the operation of vessel sealing by delivering power from the generator , feedback means operatively connected with the generator means adapted to provide change in the HF current being delivered to the

blood vessel, filtering means operatively collected with the feedback means adapted to process the current signal , converter means operatively connected with the filtering means adapted convert the current signal into voltage signal , A/D converter means operatively connected with the controller means , visual means operatively connected with the controller means adapted for visual alarm or indication to alert the caregiver, audio means operatively connected with the controller means to alert the caregiver/surgeon that effective vessel sealing has taken place. The frequency is of forty kilo Hertz to one mega Hertz,
The controller means is operatively connected with the converter means adapted to monitor the output of the current feeback such that when it exceeds a set threshold voltage set internally to the controller, it immediately stop delivery of power through the generator means and give an audio-visual alarm indication to indicate to the caregiver/surgeon that effective Vessel Sealing has taken place.
The system further comprises the bipolar devices according to the first and the second embodiments of the present invention.
The system further comprising a socket means operatively connected with the bipolar device means to connect the bipolar vessel sealing device with the bipolar system, a connector means operatively connected with the bipolar system and a cable means operatively connecting the socket means with the connector means adapted to connect the device with the system.
The device as in the first and second embodiments are detachable from the socket quickly and can be replaced by other suitable adult, neonatal, pediatric forceps.
The controller means is adapted to continuously monitor the changes in the vessel tissue temperature by monitoring the change in the impedance of the tissue present in between the tips of the bipolar device.
The audio means is selected from speaker component, buzzer, hooter and the like. The visual means is selected from filament lamp, LED, T'FT-LCD and the like.

The audio means and visual means adapted to alert the surgeon simultaneously about end of the vessel sealing and to begin the cutting of vessel.
System further optionally comprising a pair of push button switch operatively connected with the pair of socket means adapted for current flow between two prongs when the pair of push button pressed.
System further optionally comprising a foot switch operatively connected with the generator means and device adapted for current flow between two prongs when the foot switch is pressed.
The A/D converter means operatively connected with a themistor means. The themistor means operatively connected with the controller means .
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
Other features as well as the advantages of the invention will be clear from the following description.
In the appended drawing:
Fig 1 illustrates the cross-sectional view of the Bi-polar device invented according one of the embodiment of the present invention.
Fig 2 illustrates overall system view for bipolar vessel sealing.
Fig 3 illustrates the construction of Bipolar invented according to another embodiment of the present invention.
Fig 4 illustrates a block diagram explaining the real time impedance measurement of the blood vessel to be sealed.
Fig.5 shows another view of the forceps shown in Fig.l explaining the working of thumbscrew.

DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWING
In the following detailed description, reference is made to the accompanying drawings that form a part hereof, and illustrate the best mode presently contemplated for carrying out the invention. Further functioning of the system /device has been discussed below to describe the way the mechanism operates. However, such description should not be considered as any limitation of scope of the present system /device. The structure thus conceived is susceptible of numerous modifications and variations; all the details may furthermore be replaced with elements having technical equivalence. In practice the materials and dimensions may be any according to the requirements, which will still be comprised within its true spirit.
Fig 1 describes the cross-sectional view of the Bi-polar forceps/device according to one of the embodiment of the invention.
The part 100 is the exploded view of the device/forceps. Part 122 is the flat strip, which is electrically conductive. This is fabricated from various exotic, non-rusting biocompatible and USP class IV material. The material used can be ASTM 316 L grade stainless steel, 304 grade steel, brass, titanium, platinum, carbon composites, conductive polymer and so on.
The shape of the part is obtained by various fabrication technologies such as forging, CNC machining, metal injection molding, sintering, tempering and so on.
The exact replica of the part 122 is fabricated and placed face to face which is part 130. These two electrically conductive parts are firmly bound together using electrically insulated spacer part 124 and the circular clamp part 128. This construction makes the two parts 122 and 130 look like a tweezers and the two beams can freely move outwards and inwards with spring like properties.
The part 148 is a spring placed between the two beams 122 and 130 so that it will help these beams to bounce back to their resting position. The bouncing back of the beams 122 and 130

can also be made by heat or induction tempering without the addition of the spring 148. The induction tempering or heat tempering will make the 122 and 130 act like natural beam springs.
The electrical isolation between the two beams of tweezers can be 1500 volt DC or even 5000 volt DC in laboratory conditions.
The part 122 has an electrically insulated socket part 108. This is manufactured using Bakelite, polymer, printed circuit board, ceramic and so on. There will be an electrical sliding contact inside this part 108, which can receive the disposable part 102 and hold it firmly during the usage by the surgeon.
The part 102 is similar in construction and material used as in part 122. On the inner edge of part 102, a rectangular metal piece 146 having longitudinal serrations or straight knurls or diamond knurled top surface is resistance welded or riveted.
This flat surfaced part 146 will be in parallel to the flat surface of part 102. Yet another part 144, which is a vertical blade will be resistance welded or riveted vertically to the edge of the part 102 just below the part 146. The exact replica of socket 108, beam 102, serrated knurled metal piece 146,vessel cutting blade 144 is fabricated and placed face to face so that the arrangement forms a forceps.
Here instead of triangular tooth shape conical tooth are used to have a better grip whenever need arises. The part 146 the triangular tooth shape is also an optional for the embodiment.
The parts 102 and 122 are electrically isolated due to the electrically insulated socket 108. During vessel sealing procedure the push button electrically conductive -switch 112 is pressed and the metal contact part 110 will short the conductive metal parts 102 and 122. This results in a current flow between the two halves 102 and 122 of the forceps.
Apart from the above the metal beam 122 and the prong 102 have to be insulated on the outer surface so that the HF current will not flow to the hands of the surgeon or to the unintended part

of the patient. This is achieved by electrically insulating the outer surface of 122 and 102 by the following methods.
a) Painting or lacquering the entire outer surface
b) Sticking plastic insulator over the exposed surface of 122 and 102 to click fit on the surface
c) Using heat-shrinking insulating sleeves over 102 and 122 may be made from polyolefin.

d) Wrapping insulator tapes made from PTFE or HDPE
e) Injection over-molding of plastic resin
f) Sintering insulating bone-china or ceramic over 102 and 122
g) Insulating Liquid Silicon rubber injection molding over 102 and 122 and so on...
The part 106 is hollow tube manufactured from silicon rubber. This will be press fitted along the outer surface of the part 122 and 102 so that it add to the insulation and at the same time used to suck the smokes generated during vessel sealing procedure. The nozzle part 104, which is also made from silicon rubber or other insulating material, will be used for absorbing these fumes.
Alternatively the part 106 along with the nozzle part 104 can also be used to dispose surgical grade gases like Argon and Carbon dioxide. These electrically insulated chilled gases when dispersed over the blood vessel 218 provide one insulated cloud and prevent the electrical current flowing through unintended parts.
Similarly part 140 is a plastic fiber-optic tube press fitted along the surface. Since very small vessels with diameter ranging from 0.5 mm to 3 mm are held and sealed, the traditional overhead lighting arrangement placed over the operation table is not sufficient.
There is a need for pin pointed hi-intensity light, which is directly focused on the vessel to be sealed. The fiber optic part 140 carries this light and disperses through the optical lens part 142.
The movement of two prongs of the forceps should be precisely controlled, so that the optimum pressure is exerted on the vessel 218. This is done by a ratchet or knurled captive thumbscrew part 134.

This thumbscrew will have diamond shaped knurls part 136. There will be variable pitched threads part 132. This gives a grip and precision movement of the Prongs 122 and 102 inwards and outwards.
The thumbscrew 134, which is used to set the distance between two prongs of the forceps, is locked or held in captive by the Circlip part 120. This prevents the fall-off of the thumbscrew from the threaded socket part 138. The thumbscrew can be made of metal or plastic depends upon the need of electrical insulation. The part 116 is either plastic polymer of metal part having the width of at least two times greater than the width of the beam 122.
Similarly part 118 is serrated or knurled surface fabricated from metal or plastic to give a firm grip for the fingers of the surgeon. Part 114 is a special thermo plastic-Elastomer covering to give a firm grip and electrical insulation.
The parts 138, 114,116, 118 are present on both the parts 130 and 122.
Fig 2, Part 200- describes overall system view for bipolar vessel sealing.
Although in the present embodiment of this invention, the part 100 is detachable from the socket 202 quickly and can be replaced by other suitable adult, neonatal, pediatric forceps, the two parts can be produced as a monolithic construction using plastic injection molded part 204. This is especially true for one time use or disposable forceps/device.
These two beams are electrically connected to the High frequency high voltage generator device 216 as shown in Fig 2. By means of a multi-contact connector part 208, a multi core cable part 206 and a quick release multi-contact electrical socket connector part 202. Part 126 are multiple pins protruding out of part 128 for engaging and disengaging from the socket 202.
The overall system view is as shown in figure 2. The Device 216 is a High frequency, high voltage generator. The power controls and visual display are on the panel 214.

Part 208 is a multi contact connector plugged in the generator 216. It may contain coding resistor or diode to know the type of probe used. This is connected to cable 206 and to the multi-contact socket 204. The device 100 will plug inside the socket part 204.
The forceps is clamped over the desired vessel 218 to be sealed and the opposite side of the part 146 are placed over the vessel. The device 216 will pass constant current to measure the initial impedance of the blood carrying and to be sealed vessel.
Then this impedance measuring circuit is disconnected internally and the high RF voltage is applied to the two beams of the forceps. The surgeon will rotate the thumb screw 136 so that the opposite prongs 102 and serrated part 146 will come closer and closer and finally grip the vessel 218 firmly. The RF current is passed through this vessel either by activating the finger switch 112 or by pressing the foot switch 210 in the absence of the finger switch 112. The part 212 is multi pin connector, which connects the foot switch part 210 with the HF generator part 216.
The impedance of the vessel is alternatively measured and by the time it is higher than the present limit, the current is terminated by auto shut off circuit situated inside the 216.
With this the blood vessel 218 is totally sealed off. The prongs of the forceps are now released by rotating the thumbscrew 134 back. The sealed part is now cut, by moving the prongs further forward, over the vessel 218 so that the vertical cutting blade pair 144 placed over the 218. The prongs are again moved inwards using thumbscrew 134. This action separates the vessel as shown in 220.
Fig 3, part 300 explains the construction of bipolar forceps/device according to another embodiment of the present invention.
The Bipolar forceps parts 130 and 122 are covered with an insulating sheath and above this insulating sheath on both the flanges of the forceps; we will have a metal bracket arrangement which will help us to form a ratchet arrangement.

On one beam of the forceps 122 there will be a metal bracket 312, which will have a toothed metal rod 304, fixed perpendicular to the plane of 122.
On the other beam 130 there will be a metal bracket part 306, with a small slot for the toothed metal rod 304 to enter in it. This metal bracket will also have a spring loaded metal locking piece 302 which will be pressed against toothed item 304 in its normal condition. The 302 will slide along back and forth on another metal bracket 308 and can be stay put in the desired position after locking and unlocking 304.
Another close view of the part 146 is as shown in 310. Here instead of triangular tooth shape conical tooth are used to have a better grip whenever need arises.
The construction of the toothed rod 304 will be such that when the forceps will be pressed towards each other the lock 302 will freely slide across the tooth of the item 304 because of blunt edges in the direction of movement of the item 304 from bottom to top.
By no means can the item 302 slide across the tooth of the item 304 if one attempts to separate the items 130 and 122 away from each other so that the movement of the item 304 would have been from top to bottom. This is due the sharp edges present in the tooth of the item 304 in the direction of movement from top to bottom.
Ultimately, it can be understood that by mere pressing of the forceps, the item 304 will keep on moving from bottom to top and item 302 will keep on locking the item 304 due to successive locking of the tooth of item 304 and the movement will be only in one direction and restricted to move in the other direction.
Due to this mechanism a ratchet will get formed and the blood vessel to be sealed will be tightly get held in the tips of the forceps.
In this condition passing the Bipolar Electro surgical current can seal the vessel.

Once the vessel gets sealed in order to bring back the forceps in its normal condition (i.e. separating the tips of the forceps wide apart from each other), the spring loaded item 302 will be operated by the user so that it will move away from the item 304 and thus the item 304 which is in locked condition will get released because of the spring action.
Although specific features of the present invention are shown in some drawings and not in others, this is done for convenience only as each feature may be combined with any or all of the other features in accordance with the present invention.
In this embodiment the parts 136, 134,132, 138, switch 112 and the socket 108 will not be there. However the parts 140,142,144,146,104 are there. Since the working of these parts is similar to the first embodiment shown in Fig 1 they are not shown once again in Fig 3 to reduce the complexity of the Fig 3. The device is reusable. Further the feature of thermistor is also included in the second embodiment as in the first embodiment which have not been illustrated in figure 3.
Fig 4, part 400 is a block diagram explaining the real time impedance measurement of the blood vessel to be sealed.
The above diagram show block representation of vessel sealing system using Bipolar forceps, when combined with the Vessel Sealing Electro surgical generator.
It consists of a high frequency generator module part 402, which is a part of 216 Fig 2. This provides pure harmonics free sinusoidal waveform of frequency ranging from forty kilo Hertz to one mega Hertz, which will have different amplitude level, based on power settings on the generator.
The surgeon uses the bipolar forceps Part 100 of Fig 1 or Part 300 of Fig 3 to tightly hold a blood vessel part 218, which the surgeon wants to seal with the help of ratchet arrangement present in the bipolar forceps.
To deliver Bipolar coagulation power from HF generator 402 for sealing the blood vessel the Doctor needs to press the Footswitch button Part 210 of Fig 2, due to which the Micro controller

Part 412 will enable delivery of the HF power to the blood vessel to be sealed and power will start getting delivered from the HF generator Part 402.
During the phase of power delivery, the Micro controller part 412, will continuously monitor the changes in the tissue temperature by monitoring the change in the impedance of the tissue present in between the tips of the bipolar forceps. This in turn will be accomplished by monitoring the change in the HF current being delivered from 402 to the blood vessel by means of a current feedback part 406 as shown.
The current feedback signal is processed by a filter part 408 and further converted into voltage signal in the (analog to digital) block part 410, for the Micro controller block part 412 to sense it.
Once the Micro controller part 412 detects that the output of the current feedback has exceeded a set threshold voltage set internally to the micro controller, it will immediately stop delivery of power through the HF generator part 402 and give an audio alarm 414 indication to indicate to the caregiver/surgeon that effective Vessel Sealing has taken place.
The part 404 is visual a/arm or indication to alert the caregiver. This can be filament lamp, LED or a part of TFT-LCD on which group of pixels are activated to show a blinking color.
The part 414 is an audio device to alert the caregiver / surgeon that effective Vessel Sealing has taken place. This can be a speaker component, buzzer, hooter and so on. The sound output can be various dual tones, monotone, prerecorded music, voice annunciation and so on.
The Fig 5 describes another view of the forceps shown in Fig 1.
Fig 5 gives an engaged position of the thumbscrew 134. When 136 are rotated by the surgeon in clockwise direction it will move with respect to the threads in 138 which is part of the beam 122. This thread rotation will make the beam 122 to move against 130 and the two beams will come closer till part 102 will press hard against blood vessel 218. Rotating 136 in anti-clockwise will release the beams 122 and 130 back to their natural position.

It also explains the additional protection system to detect the temperature of the blood vessel 218 when the diameter is very small and the vessel is submerged with conductive tissue, blood, and liquid.
An edition of thermistor 416 with the extension cable traversing through the parts 102,122,124 and protruding out of connector 128 is shown. This thermistor will be changing its electrical resistance linearly according to the change in its own body temperature. Since it is potted /encapsulated inside the 102 which in turn are thermally bonded with 146, the temperature of the tip of the forceps is monitored. This thermistor 416 is connected to the analog to digital signal conversion circuit block 420 through 418. The change in resistance is converted to change in temperature signals with the help of 412. In some specific cases of vessel sealing where the diameter of the vessel approaches 0.5 mm and it is surrounded by the conductive tissues, blood, saline liquid and so on the impedance method of measuring sealing level using the blocks 406,408, 410 may fail. Thus the thermistor circuit will form additional watch dog circuit and emergency power cutoff.
The logarithms for these switchovers can always be written as programming code embedded inside the micro-controller 412.
The features of the present invention:
• The Bipolar forceps are smaller in size and convenient for use for sealing vessels less than 3 mm diameter up to 0.5 mm.
• The thumbscrew ratchet and the metal rod ratchet described in this invention are important features of the invention.
• The part 106 is hollow tube with nozzle, which will add to the insulation and at the same time can be used to suck the smokes generated during vessel sealing procedure.
• Part 140, plastic fiber-optic tube is novel feature. Since very small vessels with diameter
ranging from 0.5 mm to 3 mm are held and sealed, the traditional overhead lighting
arrangement placed over the operation table is not sufficient.

• There is a need for pin pointed hi-intensity light, which is directly focused on the vessel to be sealed. The fiber optic part 140 will carry this light and disperse through the optical lens part 142.
• The foolproof, double push button switch 112 which allows the flow of vessel sealing current only when both the switches are simultaneously pressed. This will prevent accidental activation and flow of dangerous current to the patient or surgeon.
• The parts 116+122+118 give a firm grip for the fingers of the surgeon.
• The part 144, which is used to cut the sealed vessel that allows the surgeon to cut the vessel immediately instead of getting on more additional vessel cutting tool.
• The concept of monolithic construction of the forceps 100, connector 204, cable 206 and the generator interface connector 208 are important features.
• Simultaneous audio and visual indication to alert the surgeon about end of the vessel sealing and to begin the cutting of vessel.

WE CLAIM
1. A bipolar device for vessel sealing, said device comprising
a pair of strip means, said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end, said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of socket means, said each socket means positioned substantially on the edge of said open end of said flat strip adapted to initiate the current flow in vessel sealing, said socket means comprising a pair of sliding contact means substantially placed inside said socket means;
a pair of prong means , said each strip means placed substantially adjacent to each other, said each prong means accommodates inside said each sliding contact means at one end and the other end is open;
a pair of metal means, said each metal means having substantially large surface area, said metal means is welded or riveted on the inner side of said open end of said prong means , said metal piece being parallel to said prong means;
a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;
a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;

a ratchet arrangement adapted to control the movement of said pair of prongs and strip means.
2. Device as claimed in claim 1 wherein said strip means includes electrically conductive material adapted to make said strip means conductive.
3. Device as claimed in claim 1 wherein said strip means is of insulated material on its outer surface.
4. Device as claimed in claim 1 wherein said spacer comprises clamp means, said clamp means is electrically insulated.
5. Device as claimed in claim 1 wherein said sliding contact means and said socket means are of insulated material.
6. Device as claimed in claim 1 wherein said prong means is disposable.
7. Device as claimed in claim 1 wherein said one of the tube means adapted for insulation and suck the smokes generated during vessel sealing procedure, said tube means comprising
a nozzle means substantially at the top of said tube means adapted for absorbing these fumes, said tube means together with nozzle means adapted to dispose surgical gases such as Argon ,Carbon dioxide and like.
8. Device as claimed in claim 7 wherein said tube is selected from silicon rubber.
9. Device as claimed in claim 1 wherein said another tube means comprising
an optical lens means substantially at the top of said tube means adapted to carry pin pointed hi-intensity light and disperse through said optical means.
10. Device as claimed in claim 9 wherein said tube is selected from plastic fiber-optic tube.

11. Device as claimed in claim 1 wherein said metal means is substantially rectangular having longitudinal serrations/wavy or straight knurls or diamond knurled top surface.
12. Device as claimed in claim 1 wherein said metal means is optionally triangular tooth shaped or conical tooth shaped adapted for better grip.
13. Device claimed in claim 1 wherein said strip means has electrical isolation of at least 1500 volt DC and up to 5000 volt DC.
14. Device claimed in claim 1 wherein said device is used to seal blood vessels of diameter more than 0.5mm and up to 3 mm diameter.
15. Device as claimed in claim 1 further comprising optionally a spring means placed substantially between said pair of strip means adapted to assist said strip means to bounce back to their resting position.
16. Device as claimed in claim 1 wherein said ratchet arrangement comprising a screw means;
a pair of cavity means placed on said strip means and below said socket means and
a circlip means substantially placed on one of the side of the prong means, said circlip means is located diametric to said screw means and said cavity means.
17. Device as claimed in claim 16 wherein said screw means comprising
plurality of knurl means at the top of said screw means, said kurl means are diamond shaped;

plurality of thread means below the said knurls means adapted to provide grip and precision movement of the pair of prong means inwards and outwards.
18. Device as claimed in claim 16 wherein said each cavity means comprising
a threaded socket means adapted to operatively connect said plurality of thread means into said threaded socket and prevent the fall of said screw means;
a body means on which said threaded socket means in placed , said body means is having width of atleast two times greater than the width of said strip means;
plurality of serration on said body means adapted for firm grip for fingers of surgeon.
a cover means enclosing said body means adapted to give a firm grip and electrical insulation.
19. Device as claimed in claim 16 wherein said circlip means substantially placed on one of the side of the prong means to operatively get connected with said screw means adapted to prevent the fall-off of the thumbscrew from thread means.
20. Device as claimed in claim 1 further optionally comprising a thermistor means operatively connected with one of the said metal means adapted to monitor the temperature of the tip of said prong means.
21. Device as claimed in claim 20 wherein said thermistor means comprising an extension cable accommodated/encapsulated longitudinally within said prong means, said strip means, said spacer means and said pin means adapted for changing electrical resistance linearly according to the change in said thermistor body temperature.
22. A bipolar device for vessel sealing, said device comprising

a pair of strip means , said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end , said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of metal means having substantially large surface area, said each metal means is substantially welded or riveted on the inner side of said open end of said strip means , said metal piece being parallel to said strip means;
a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;
a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;
a ratchet arrangement comprising a pair of bracket means .
23. Device as claimed in claim 22 wherein said strip means includes electrically conductive material adapted to make said strip means conductive.
24. Device as claimed in claim 22 wherein said strip means comprises insulated material on its outer surface.
25. Device as claimed in claim 22 wherein said bracket means comprising :
a metal bracket means placed on one of the strip means, said metal bracket means comprising a rod means having toothed profile, said rod means substantially fixed normal to said plane of strip means;

a slotted metal bracket means placed on another metal strip means, said slotted metal bracket means having a slot substantially at its middle such that the rod means enters into said slot means;
a locking means operatively connected with said slotted metal bracket means having plurality of blunt edges adapted to accommodate inside said tooted profile of rod means.
26. Device as claimed in claim 25 wherein said locking means comprises spring means adapted for suitable motion.
27. Device as claimed in claim 22 wherein said metal means comprises longitudinal serrations/wavy or straight knurls or diamond knurled top surface.
28. Device as claimed in claim 22 wherein said metal means is optionally triangular tooth shaped or conical tooth shaped adapted to have a better grip.
29. Device claimed in claim 22 wherein said device is seal blood vessels of diameter more than 0.5mm and up to 3 mm diameter.
30. Device as claimed in claim 22 wherein said one of the tube means adapted for insulation and suck the smokes generated during vessel sealing procedure, said tube means comprising
a nozzle means substantially at the top of said tube means adapted for absorbing these fumes, said tube means together with nozzle means adapted to dispose surgical gases such as Argon ,Carbon dioxide and like.
31. Device as claimed in claim 30 wherein said tube is selected from silicon rubber.
32. Device as claimed in claim 22 wherein said another tube means comprising
an optical lens means substantially at the top of said tube means adapted to carry pin pointed hi-intensity light and disperse through said optical lens means.

33. Device as claimed in claim 30 wherein said tube is selected from plastic fiber-optic tube.
34. Device as claimed in claim 22 further optionally comprising a thermistor means operatively connected with one of the said metal means adapted to monitor the temperature of the tip of said prong means.
35. Device as claimed in claim 34 wherein said thermistor means comprising an extension cable accommodated/encapsulated longitudinally within said prong means, said strip means, said spacer means and said pin means adapted for changing electrical resistance linearly according to the change in said thermistor body temperature.
36. A bipolar system for vessel sealing, said system comprising:
a generator adapted to generate high frequency current/power;
a controller means operatively connected with said generator means adapted to control the flow of high frequency current/power and deliver the power to the blood ;
a footswitch means operatively connected with said controller means adapted to start the operation of vessel sealing by delivering power from said generator;
feedback means operatively connected with said generator means adapted to provide change in the HF current being delivered to the blood vessel;
filtering means operatively connected with said feedback means adapted to process the said current signal;
converter means operatively connected with said filtering means adapted convert the current signal into voltage signal;

A/D converter means operatively connected with said controller means;
visual means operatively connected with said controller means adapted for visual alarm or indication to alert the caregiver;
audio means operatively connected with said controller means to alert the
caregiver/surgeon that effective vessel sealing has taken place;
such that said audio means and visual means adapted to alert the surgeon simultaneously
about end of the vessel sealing and to begin the cutting of vessel.
such that said controller means is operatively connected with said converter means
adapted to monitor the output of the current feedback such that when it exceeds a set
threshold voltage set internally to said controller, it immediately stop delivery of power
through said generator means and give an audio-visual alarm indication to indicate to the
caregiver/surgeon that effective Vessel Sealing has taken place.
7. System as claimed in claim 36 further comprising a bipolar vessel sealing device, said device comprising
a pair of strip means, said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end, said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of socket means , said each socket means positioned substantially on the edge of said open end of said flat strip adapted to initiate the current flow in vessel sealing, said socket means comprising a pair of sliding contact means substantially placed inside said socket means;

a pair of prong means, said each strip means placed substantially adjacent to each other, said each prong means accommodates inside said each sliding contact means at one end and the other end is open;
a pair of metal means, said each metal means having substantially large surface area, said metal means is welded or riveted on the inner side of said open end of said prong means, said metal piece being parallel to said prong means;
a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;
a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;
a ratchet arrangement adapted to control the movement of said pair of prongs and strip means.
38. System as claimed in claim 36 further comprising a bipolar vessel sealing device , said device comprising
a pair of strip means , said each strip means substantially placed adjacent to each other and bend to form a substantially "V" shaped modular profile, said each strip means having an open end and a tapered end , said tapered end is diametric to said open end;
a spacer means substantially placed in-between said pair of tapered end adapted to bound said pair of tapered end together;
a pair of metal means having substantially large surface area, said each metal means is substantially welded or riveted on the inner side of said open end of said strip means , said metal piece being parallel to said strip means;

a pair of blade means, said each blade means welded/riveted substantially below said pair of metal piece means adapted to cut vessels;
a pair tube means, said each tube is press fitted along the outer surface of said strip means and prong means, said pair of tube means is hollow;
a ratchet arrangement comprising a pair of bracket means.
39. System as claimed in claim 36 further comprising
a socket means operatively connected with said bipolar device means adapted to connect
said bipolar vessel sealing device with said bipolar system;
a connector means operatively connected with said bipolar system;
a cable means operatively connecting said socket means with said connector means
adapted to connect said device with said system.
40. System as claimed in claim 36 wherein said controller means is adapted to continuously monitor the changes in the vessel tissue temperature by monitoring the change in the impedance of the tissue present in between the tips of said bipolar device .
41. System as claimed in claim 36 said frequency is of forty kilo Hertz to one mega Hertz.
42. System as claimed in claim 36 wherein said A/D converter means operatively connected with a themistor means.
43. System as claimed in claim 42 wherein said themistor means operatively connected with said controller means.
44. System as claimed in claim 1 further optionally comprising a pair of push button switch operatively connected with said pair of socket means adapted for current flow between two prongs when said pair of push button is pressed.

45. System as claimed in claim 1 further optionally comprising a foot switch operatively connected with said generator means and device adapted for current flow between two prongs when said foot switch is pressed.