Description:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(Section 10 and Rule 13)

1. TITLE OF THE INVENTION:
EMBOLIZATION APPARATUS DELIVERY DEVICE

2. APPLICANTS:
Meril Life Sciences Pvt. Ltd., an Indian Company of the address, Survey No. 135/139 Bilakhia House, Muktanand Marg, Chala, Vapi-Gujarat 396191, India

3. The following specification particularly describes the invention and the manner in which it is to be performed:
 
FIELD OF INVENTION
[001] The present invention relates to a medical device. More specifically, the present invention relates to an embolization apparatus delivery device.
BACKGROUND OF INVENTION
[002] An interventional procedure like an embolization procedure stops blood flow to a specific blood vessel. The procedure works by placing a substance (or device) in a blood vessel to prevent blood from flowing through it. The device includes for example, an embolization apparatus. An embolization apparatus is a permanent device used in an interventional procedure, to block blood flow in a medium to large-sized blood vessel. The embolization apparatus may be made of for example, a flexible metallic wire, formed into a coil.
[003] The embolization apparatus is delivered to the target location through a delivery device. Once the delivery device is positioned, the embolization apparatus is released to fill the target location. This creates a blockage, preventing blood from flowing through that particular vessel. Over time, blood clots form around the embolization apparatus, creating a permanent seal.
[004] However, conventionally, the embolization apparatus is delivered using methods such as, thermal deployment, mechanical deployment, etc. The thermal deployment method involves heating a coil at the conjunction of the deployment device and the coil, to its melting point. This, often results in release of particles associated with the heated coil, at the target location, causing several complications. The mechanical detachment often relies on complex mechanisms, susceptible to unintended release of the embolization apparatus before optimal placement due to a mechanical failure. Also, the mechanical detachment may involve intricate mechanical manipulation that can prolong the deployment procedure and increase the risk of complications.
[005] Hence, there is a need for a delivery device which can overcome the above limitations.
SUMMARY OF INVENTION
[006] The present invention relates to a delivery device to deliver an embolization apparatus and a method of decoupling the embolization apparatus from the delivery device. The delivery device includes, a delivery shaft, a magnet, a heating plate and a plurality of conducting wires. The delivery shaft includes a distal end and a proximal end which defines a length therebetween. The magnet is configured to attract the embolization apparatus. The magnet includes a first surface and a second surface. The first surface configured to mate with the distal end of the delivery shaft. The heating plate includes, a first flat surface and a second flat surface. The first flat surface is coupled to the second surface of the magnet while, the second flat surface is magnetically coupled to the embolization apparatus. The plurality of conducting wires extend at least partially along the length of the delivery shaft. Each wire of the plurality of conducting wires includes a first end, which is coupled to the heating plate. Further, the heating plate is configured to magnetically decouple from the embolization apparatus upon heating of the heating plate post receiving an electric current.
[007] Further, for decoupling the apparatus from the device, the delivery shaft coupled to the embolization apparatus at its distal end via at least one magnet, is provided. Thereafter, an electric current is passed to the heating plate which is placed adjacent to the at least one magnet. The electric current is passed till the heating plate heats up at least to a threshold temperature, thereby detaching the embolization apparatus from the device.
[008] The foregoing features and other features as well as the advantages of the invention will become more apparent from the following detailed description, which proceeds with reference to the accompanying figures.
BRIEF DESCRIPTION OF DRAWINGS
[009] The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the apportioned drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale.
[0010] Fig. 1 depicts a side perspective view of a device 100, according to an embodiment of the present disclosure.
[0011] Fig. 2a depicts a perspective view of the device 100 with an embolization apparatus 140, according to an embodiment of the present disclosure.
[0012] Fig. 2b depicts a cross-sectional view of the device 100 with the embolization apparatus 140, according to an embodiment of the present disclosure.
[0013] Fig. 3a-3b depict various perspective views of a delivery shaft 105 with a first connecting structure 115, a second connecting structure 120 and a plurality of wires 110, according to an embodiment of the present disclosure.
[0014] Figs. 4a-4b depict the first connecting structure 115 and the second connecting structure 120 respectively of the device 100, according to an embodiment of the present disclosure.
[0015] Fig. 5a depicts a magnet 125 with a casing 125c of the device 100, according to an embodiment of the present disclosure.
[0016] Fig. 5b depicts a heating plate 130 of the device 100, according to an embodiment of the present disclosure.
[0017] Fig. 5c depicts an assembly of a magnet 125, the heating plate 130 and a cover 135 of the device 100, according to an embodiment of the present disclosure.
[0018] Fig. 6 depicts a perspective view of the embolization apparatus 140, according to an embodiment of the present disclosure.
[0019] Fig. 7 depicts a flowchart of a method 700 for decoupling the embolization apparatus140 from the device 100 at a target site, according to an embodiment of the present disclosure.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0020] Prior to describing the invention in detail, definitions of certain words or phrases used throughout this patent document will be defined: the terms "include" and "comprise", as well as derivatives thereof, mean inclusion without limitation; the term "or" is inclusive, meaning and/or; the phrases "coupled with" and "associated therewith", as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have a property of, or the like; Definitions of certain words and phrases are provided throughout this patent document, and those of ordinary skill in the art will understand that such definitions apply in many, if not most, instances to prior as well as future uses of such defined words and phrases.
[0021] Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, but mean “one or more but not all embodiments” unless expressly specified otherwise. The terms “including,” “comprising,” “having,” and variations thereof mean “including but not limited to” unless expressly specified otherwise. An enumerated listing of items does not imply that any or all of the items are mutually exclusive and/or mutually inclusive, unless expressly specified otherwise. The terms “a,” “an,” and “the” also refer to “one or more” unless expressly specified otherwise.
[0022] Although the operations of exemplary embodiments of the disclosed method may be described in a particular, sequential order for convenient presentation, it should be understood that the disclosed embodiments can encompass an order of operations other than the particular, sequential order disclosed. For example, operations described sequentially may in some cases be rearranged or performed concurrently. Further, descriptions and disclosures provided in association with one particular embodiment are not limited to that embodiment, and may be applied to any embodiment disclosed herein. Moreover, for the sake of simplicity, the attached figures may not show the various ways in which the disclosed system, method, and apparatus can be used in combination with other systems, methods, and apparatuses.
[0023] Furthermore, the described features, advantages, and characteristics of the embodiments may be combined in any suitable manner. One skilled in the relevant art will recognize that the embodiments may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments. These features and advantages of the embodiments will become more fully apparent from the following description and apportioned claims, or may be learned by the practice of embodiments as set forth hereinafter.
[0024] In accordance with the present disclosure, a device for the delivery of an embolization apparatus (hereinafter referred as, an apparatus) is disclosed. The device is used to carry and deliver the apparatus at a target location. In an embodiment, the apparatus is coupled to the device using magnetic coupling. In an embodiment, the device includes a magnet and a heating plate. The magnet is used to temporarily couple the apparatus to the device. The device along with the apparatus is placed at the target site using a catheter. Further, to decouple the apparatus from the device, the heating plate is heated thus, weakening the coupling between the apparatus and the magnet resulting in detachment of the apparatus from the device at the target location.
[0025] The device of the present invention provides several advantages over conventional devices, used to deliver the apparatus. The device includes the magnet, which facilitates strong coupling of the apparatus with the device, avoiding unpredictable detachment. Further, the device includes the heating plate which when heated, weakens the magnetic coupling between the magnet and the apparatus. This results in controlled detachment of the apparatus from the device, minimizing the risk of misplacement or unintended migration of the apparatus. The detachment of the apparatus with the device through the heating plate, avoids any kind of particle release due to melting of a heated coil (as used in conventional devices for detachment). This reduces the chances of related complications and thermal injury in a patient. The device allows for remote detachment by providing an electric current from an external source to the heating plate thus, avoiding the need for additional invasive steps, and minimizing trauma to the surrounding tissue.
[0026] Now referring to figures, Fig. 1 depicts a device 100. The device 100 is coupled to an embolization apparatus 140 (hereinafter referred as, an apparatus 140) (as shown in Fig. 2a-2b). The device 100 is used to deliver the apparatus 140 at a target location. The target location may without limitation include, a blood vessel, an aneurysm, an arteriovenous malformation etc., in a patient. The device 100 has a proximal end 100a and a distal end 100b. According to an embodiment, the device 100 includes a delivery shaft 105, a plurality of conducting wires 110, a first connecting structure 115, a second connecting structure 120, a magnet 125 and a heating plate 130.
[0027] The delivery shaft 105 extends from the proximal end 100a to the distal end 100b of the device 100, defining a proximal end 105a and a distal end 105b defining a length extending there between (as shown in Fig. 3a). According to an embodiment, the delivery shaft 105 has a cylindrical structure, defining an outer surface. The delivery shaft 105 is tapered towards the distal end 105b. The tapered structure of the delivery shaft 105 provides flexibility and increases trackability of the delivery shaft 105 in navigating the blood vessels of the patient. Thus, reducing the risk of vessel trauma and facilitating precise placement of the apparatus 140.
[0028] The delivery shaft 105 may be made of a suitable biocompatible material including without limitation, stainless steel 316L, nitinol, cobalt-chromium alloy, magnesium alloys, etc. In an embodiment, the delivery shaft 105 is made of stainless steel 316L. The delivery shaft 105 has a predefined length ranging from 1400mm to 2000mm. In an embodiment, the predefined length of the delivery shaft 105 is 1800mm. The delivery shaft 105 is provides flexibility and steerability to the device 100 facilitating. Further, the delivery shaft 105 provides support and stability to the device 100 at the time of deployment of the apparatus 140.
[0029] The device 100 includes a plurality of wires 110. According to an embodiment, the device 100 includes two wires 110 namely, a first wire 110a and a second wire 110b (as shown in Figs. 3a-3b). In an embodiment, each wire 110 is provided on the outer surface of the delivery shaft 105 and extends along at least the length of the delivery shaft 105. The wires 110 are secured on the outer surface of the delivery shaft 105 using a tube. In an embodiment, the tube used to secure the wires 110 is shrinkable upon receiving heat. Alternately, the wires (110) are provided on an inner surface of the delivery shaft 105.
[0030] Each wire 110 includes two ends namely, a first end and a second end. In an embodiment, the first wire 110a and the second wire 110b extend from the distal end 105b towards the proximal end 105a of the delivery shaft 105. The first ends of the first wire 110a and the second wire 110b couple to the heating plate 130 at a predefined distance from each other. In an embodiment, the first wire 110a and the second wire 110b couple at points, diametrically opposite to each other. In an embodiment, the first ends of the first wire 110a and the second wire 110b are welded to the heating plate 130. In an embodiment, the second ends of the first wire 110a and the second wire 110b are connected to the first connecting structure 115 and the second connecting structure 120 respectively.
[0031] The wires 110 carry an electric current from a source (not shown) to the heating plate 130. The wires 110 are connected to the source through the first connecting structure 115 and the second connecting structure 120. In an embodiment, the first wire 110a is connected to the positive terminal of the source through the first connecting structure 115 while, the second wire 110b is connected to the negative terminal of the source through the second connecting structure 120.
[0032] The wires 110 are made of a suitable biocompatible conductive material including without limitation, silver alloy wire, High-Purity Copper Wire, Nickel-Plated Copper Wire, Silver-Plated Copper Wire, Gold-Plated Copper Wire, Nitinol Wire, Tantalum Wire, Tungsten-Rhenium Alloy Wire, or a combination thereof. In an embodiment, the wires 110 are made of silver alloy. In an embodiment, the first wire 110a and the second wire 110b have a predefined thickness and a predefined length ranging from 0.04mm to 0.08mm and 1300mm to 1700mm respectively. In an embodiment, the predefined thickness of the first wire 110a and the second wire 110b is 0.06mm. In an embodiment, the predefined length of the first wire 110a and the second wire 110b is 1400mm.
[0033] The first connecting structure 115 and the second connecting structure 120 has a tubular structure, defining an outer surface and an inner surface. Figs. 4a-4b depict the first connecting structure 115 and the second connecting structure 120, respectively. The first connecting structure 115 and the second connecting structure 120 are disposed on the outer surface of the delivery shaft 105, such that the first connecting structure 115 and the second connecting structure 120 are axially aligned. More specifically, the first connecting structure 115 and the second connecting structure 120 are disposed on the outer surface of the delivery shaft 105, towards the proximal end 105a. The inner surface of the first connecting structure 115 and the second connecting structure 120 mate with the outer surface of the delivery shaft 105. In an embodiment, the second connecting structure 120 is positioned nearer to the proximal end 105a, than the first connecting structure 115. The second connecting structure 120 is thus sandwiched between the proximal end 105a, and the first connecting structure 115, defining a gap of width ‘w’ therebetween. The width ‘w’ may range from 1mm to 10mm. In an embodiment, the width ‘w’ is 5mm.
[0034] The first connecting structure 115 and the second connecting structure 120 are configured to connect the wires 110 to the source. The first connecting structure 115 and the second connecting structure 120 have a predefined length ranging from 10mm to 60mm. In an embodiment, the predefined length of the first connecting structure 115 and the second connecting structure 120 is 50mm and 20mm respectively. The predefined length of the first connecting structure 115 may be less than, greater than or equal to the predefined length of the second connecting structure 120. In an embodiment, the predefined length of the first connecting structure 115 is greater than the predefined length of the second connecting structure 120. The first connecting structure 115 and the second connecting structure 120 may be made of stainless steel.
[0035] The magnet 125 configured to attract the apparatus 140. The magnet 125 (depicted in Fig. 5a) couples the apparatus 140 temporarily to the device 100. The magnet 125 may include one or more magnets. The magnet 125 may be enclosed by a casing 125c. The casing 125c has a tubular structure defining a lumen and a predefined outer diameter. In an embodiment, the magnet 125 is provided in the lumen of the casing 125c. The predefined outer diameter of the casing 125c may range from 0.1mm to 1mm. In an embodiment, the predefined outer diameter is 0.3mm. The casing 125c may be made of a suitable biocompatible material such as without limitation, titanium, parylene C, gold, epoxy resin, etc. In an embodiment, the casing 125c is made of titanium. The casing 125c ensures that the strength and functionality of the magnet 125 is maintained.
[0036] In an embodiment, the magnet 125 is a cylindrical structure, defining a first surface 125a and a second surface 125b. The first surface 125a of the magnet 125 mates with the distal end 105b of the delivery shaft 105 while, the second surface 125b mates with the heating plate 130. The magnet 125 may be made of at least one of a Nickle with Neodymium-Iron-Boron, Titanium with Samarium-Cobalt, Parylene with Alnico, etc. In an embodiment, the magnet 125 is made of Titanium with Samarium-Cobalt. The magnet 125 may have a predefined outer diameter ranging from 0.2mm to 1mm. In an embodiment, the predefined outer diameter of the magnet 125 is 0.25mm.
[0037] The heating plate 130 (depicted in Fig. 5b) of the device 100 is configured to detach the apparatus 140 from the device 100. The heating plate 130 may have a suitable shape such as without limitation circular, elliptical, square, rectangular, etc. In an embodiment, the heating plate 130 has a circular shape defining a predefined diameter and a predefined thickness ranging from 0.2mm to 1mm and 2mm to 10mm respectively. In an embodiment, the predefined diameter and the predefined thickness of the heating plate 130 is 0.3mm and 5mm respectively. The heating plate 130 may be made of polyimide with platinum traces.
[0038] The heating plate 130 includes a first flat surface 130a, a second flat surface 130b and a wall. In an embodiment, the first flat surface 130a of the heating plate 130 couples to the second surface 125b of the magnet 125 while, the second flat surface 130b couples to a jacket 146 of the apparatus 140. Further, the heating plate 130 is connected to the first wire 110a and the second wire 110b, to receive an electric current from a power source. Post receiving the electric current, the heating plate 130 is configured to heat up. Due to excess heat emitted by the heating plate 130, the attractive force between the magnet 125 and the apparatus 140 weakens. This causes the apparatus 140 to detach from the device 100. More specifically, the heating plate 130 is configured to magnetically decouple from the apparatus 140 upon heating of the heating plate 130 post receiving an electric current.
[0039] Additionally and optionally, the device 100 includes a cover 135. The cover 135 is used to enclose and protect the magnet 125 (as shown in Fig. 5c) from coming in contact with the blood, before detachment of the apparatus 140 from the device 100. The cover 135 may be made of polyolefin, PTFE (Polytetrafluoroethylene), FEP (Fluorinated Ethylene Propylene), PEEK (Polyether Ether Ketone), PVC (Polyvinyl Chloride), etc. In an embodiment, the cover 135 is made of polyolefin. The cover 135 has a tubular structure defining a lumen. The lumen of the cover 135 is configured to house the magnet 125. The cover 135 may have a predefined diameter ranging from 0.2mm to 5mm. In an embodiment, the diameter of the cover 135 is 0.5mm. In an embodiment, the predefined diameter of the cover 135 is greater than the predefined diameter of the magnet 125, defining a gap between the outer circumference of the magnet 125 and the inner circumference of the cover 135.
[0040] The apparatus 140 is configured to couple to the distal end 100b of the device 100 magnetically. Further, post detachment from the device 100, the apparatus 140 is used to embolize the target site. According to an embodiment, in an undeployed state, the apparatus 140 has a helical shape with a plurality of turns. Fig. 6 depicts the apparatus 140. The apparatus 140 has a proximal end 140a and a distal end 140b. The proximal end 140a of the apparatus 140 includes a cap 142 while, the proximal end 140a includes a jacket 146. In an embodiment, the cap 142 is dome-shaped. The cap 142 is used to cover the sharp end of the wire 144 of the apparatus 140, preventing injury at the target site. The cap 142 may be made of a suitable biocompatible material such as, without limitation, soft polymer, silicone rubber, thermoplastic elastomer, hydrogel, glue, nylon, dacron, polyester, silk, PVA, etc. In an embodiment, the cap 142 is made of soft polymer.
[0041] Further, the jacket 146 is configured to couple the apparatus to the device 100, say, the proximal end 140a of the apparatus 140. In the undeployed state, the jacket 146 is also coupled to the heating plate 130 of the device 100. The jacket 146 has a tubular structure defining a predefined outer diameter and a predefined thickness ranging from 0.1mm to 1mm and 0.1mm to 1mm respectively. In an embodiment, the jacket 146 may be made of a radiopaque biocompatible material without limitation including, Platinum-Iridium, Platinum (Pt), Platinum-Tungsten (Pt-W), Stainless Steel (SS), Nitinol (NiTi), etc. In an embodiment, the jacket 146 is made of Platinum-Iridium. The jacket 146 allows for real-time visualization of the position of the apparatus 140 under fluoroscopy, during the delivery procedure while providing protection and guidance. Additionally, post detachment of the apparatus 140 from the device 100, the jacket 146 remains coupled to the proximal end 140a, covering the sharp edges of the apparatus 140.
[0042] Further, the apparatus 140 is made from a wire 144. The wire 144 extends from the proximal end 140a to the distal end 140b of the apparatus 140. The wire 144 may be wound in a suitable shape such as without limitation, helical, straight, complex coil, etc. In an embodiment, the wire is wound to impart the apparatus 140, a helical shape. The wire 144 may have a predefined length and a predefined width ranging from 1cm to 50cm and 1mm to 50mm respectively. In an embodiment, the predefined length of the wire 144 is 30cm and the predefined width is 20mm. The wire 144 may be made of a suitable biocompatible material such as without limitation, Platinum, Platinum-Tungsten alloy, Platinum-Iridium alloy, Nitinol (Nickel-Titanium alloy), Stainless steel etc. or a combination thereof. In an embodiment, the wire 144 is made of Platinum-Tungsten alloy. It is to be noted, the apparatus 140 includes one wire however, an apparatus with more than one wires interconnected to each other are considered to be within the scope of the present invention.
[0043] The delivery shaft 105 of the device 100 is provided to couple with the apparatus 140 at the distal end 105b of the delivery shaft 105, via the at least one magnet 125. More specifically, the jacket 146 of the apparatus 140 is magnetically coupled to the device 100, when brought near to the distal end 105b of the delivery shaft 105. Further, for decoupling the apparatus 140 from the device 100, the electric current is passed to the heating plate 130 which in turn is placed adjacent to the at least one magnet 125. The electric current is passed till the heating plate 130 heats up at least to a threshold temperature, thereby detaching the apparatus 140 from the device 100.
[0044] Fig. 7 depicts a flowchart of a method 700 for delivering the apparatus 140 at the target site. At step 702, the apparatus 140 is coupled to the device 100. The apparatus 140 is coupled to the distal end 105b of the delivery shaft 105 via the magnet 125. Further, the device 100 with the apparatus 140, is loaded in a delivery catheter outside a body vasculature as a starting point.
[0045] At step 704, the device 100 is positioned at the target site. For this, first an introducer sheath is inserted into a patient’s body via an appropriate vascular access point. A guidewire is disposed within the introducer sheath to navigate to the target site. Thereafter, the delivery catheter is advanced into a patient’s body through the introducer sheath, passed over the guide wire. Once the delivery catheter reaches a desired position, the guide wire is removed and the apparatus 140 coupled to the device 100, is exposed inside the target site through the delivery catheter.
[0046] At step 706, a power supply (electric current) is provided to the device 100. The electric current is provided to the device 100 using an external source. The electric current is delivered to the heating plate 130 of the device 100, using a plurality of wires 110.
[0047] At step 708, the heating plate 130 is heated. Upon receiving the electric current from the source, the heating plate 130 is heated. The heating plate 130 of the device 100, is heated to at least a threshold temperature by passing the electric current of a predefined voltage for a predefined time. The predefined voltage may range from 5V to 15V and the predefined time may range from 1sec to 10sec. In an embodiment, the predefined voltage is 9V and the predefined time is 1sec. Herein, the threshold temperature indicates the temperature at which, the magnetic force exerted by the magnet 125 diminishes.
[0048] At step 710, the apparatus 140 is detached/decoupled from the device 100. Post heating the heating plate 130 to the threshold temperature, the magnetic force between the magnet 125 and the heating plate 130 diminishes. This results in the detachment of the coil from the device 100.
[0049] The scope of the invention is only limited by the appended patent claims. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings of the present invention is/are used. , Claims:WE CLAIM
1. A delivery device (100) to deliver an embolization apparatus (140), comprising:
o a delivery shaft (105) having a distal end (105b), and a proximal end (105a) defining a length therebetween;
o a magnet (125) configured to attract the embolization apparatus (140), including a first surface (125a) and a second surface (125b), the first surface (125a) configured to mate with the distal end (105b) of the delivery shaft (105);
o a heating plate (130) including:
 a first flat surface (130a) coupled to the second surface (125b) of the magnet (125); and
 a second flat surface (130b) magnetically coupled to the embolization apparatus (140); and
o a plurality of conducting wires (110) extending at least partially along the length of the delivery shaft (105), each wire (110) of the plurality of conducting wires (110) includes a first end coupled to the heating plate (130);
wherein, the heating plate (130) is configured to magnetically decouple from the embolization apparatus (140) upon heating of the heating plate (130) post receiving an electric current.
2. The device (100) as claimed in claim 1 wherein, the heating plate (130) is heated to a threshold temperature configured to weaken a magnetic force holding the embolization apparatus (140).
3. The device (100) as claimed in claim 1 wherein, the delivery shaft (105) has a tapered shape.
4. The device (100) as claimed in claim 1 wherein, the magnet (125) is enclosed in at least one of a casing (125c) and a cover (135).
5. The device (100) as claimed in claim 1 wherein, the device (100) includes:
o a first connecting structure (115) disposed on an outer surface of the delivery shaft (105), to connect a corresponding wire (110) to a positive terminal of a source; and
o a second connecting structure (120) disposed on the outer surface of the delivery shaft (105), to connect a corresponding wire (110) to a negative terminal of the source.
6. The device (100) as claimed in claim 5 wherein, at least one of the first connecting structure (115) or the second connecting structure (120) includes a tubular structure.
7. The device (100) as claimed in claim 5 wherein, a second end of each wire (110) is coupled to one of the first connecting structure (115) or the second connecting structure (120).
8. The device (100) as claimed in claim 1 wherein, the plurality of conducting wires (110) is secured to an outer surface of the delivery shaft (105) using a heat shrinkable tube.
9. The device (100) as claimed in claim 1 wherein, the plurality of conducting wires (110) is provided on an inner surface of the delivery shaft.
10. A method of decoupling an apparatus (140) from a delivery device (100), comprising:
o providing a delivery shaft (105) coupled to an embolization apparatus (140) at its distal end (105b) via at least one magnet (125) provided at the distal end (105b) of the delivery shaft (105); and
o passing an electric current to a heating plate (130) placed adjacent to the at least one magnet (125) till the heating plate (130) heats up at least to a threshold temperature, thereby detaching the embolization apparatus (140) from the device (100).