Field of the Invention:
The present invention relates to the field of medical science. More particularly, the present invention provides an improved combat pneumatic tourniquet and method of use thereof.
Even more particularly, the present invention provides a pneumatic tourniquet designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios. The present invention consists of the device that is air tight, pressure cuff wrapped around injured limb for the treatment during emergency situation.
Even more particularly the invention provides a single unit of combat pneumatic tourniquet that can cater to multiple amputations, arterial bleeding wounds, etc.
Background of the invention:
The pneumatic tourniquet is frequently used for upper and lower limb surgery to reduce bleeding, improve visualisation of important structures and expedite surgical procedures. Despite advances in technology, localised tissue damage secondary to cuff compression, ischemia-reperfusion injuries and systemic complications still occur. The combination of these problems may affect outcome and contribute to prolonged hospitalisation. Use of the correct pneumatic tourniquet cuff size and a patient-specific cuff pressure with careful control of the duration of inflation may help reduce the incidence of these injuries.
Various system and devices have been invented in the field of medical science for the immediate treatment of the injured person. Particularly, combat pneumatic tourniquet. Some of them are discussed here.
A reference has been made to patent no. JP2019526339A by Sun Scientific, Incorporated dated 2016-08-23 titled “Therapeutic pressure device and method of use”. The invention relates to a therapeutic compression device for providing pressure to a limb or other body part comprising a bladder assembly having at least one bladder in a main wrap and / or a side wrap. The main wrap includes an expansion port for connection with expansion means for providing either constant or variable pressure within the bladder, and a check valve is included in the expansion port and/ or expansion means.
Another reference has been made to patent no. CA2617608A1 by Western Clinical Eng. Dated 2006-07-31 titled “Surgical Tourniquet Cuff System”. The invention relates to a surgical tourniquet cuff system includes a tourniquet cuff with a cuff connector for communicating pneumatically with the cuff and for releasably connecting to a tourniquet instrument connector to establish a pneumatic passageway between the cuff connector and the tourniquet instrument connector. A tourniquet instrument supplies pressurized gas through the pneumatic passageway to the cuff. The tourniquet instrument connector includes a cuff pressure transducer for producing a cuff pressure signal indicative of the pressure of gas within the gas passageway near the connection. The cuff may include a cuff usage register for containing a cuff usage record and the tourniquet instrument connector may include a cuff usage register interface for reading the record. The tourniquet cuff may further include a cuff sheath forming a flexible conduit containing the cuff connector and sized to allow the connection of the cuff connector to the tourniquet instrument connector within the sheath.
Another reference has been made to US patent no. US6746470B2 by Western Clinical Engineering Ltd. dated 2002-01-18 titled, “Emergency and military tourniquet for pre-hospital use”. The present invention relates to a pneumatic tourniquet adapted for self application by an injured person in a military or emergency situation to stop arterial blood loss in an injured arm or leg comprises: a bladder having a width dimension and having a length dimension greater than the circumference of an injured limb of a subject at a selected location; and clamp means for securing the bladder around the limb at the selected location and adapted for sealing the bladder across the bladder width to establish an inflatable portion of the bladder to be the portion of the bladder that encircles the injured limb at the selected location.
Another reference has been made to another US patent no. US10395562B2 by Gaumard Scientific Co. Inc. dated 2012-01-27 titled, combat medical simulators and associated systems and methods. The present invention relates to devices, systems, and methods appropriate for use in combat medical training are provided. In some instances, the combat medical simulators facilitate training of common field medical techniques including tracheostomy, wound care, tourniquet use, pneumothorax, cardiopulmonary resuscitation, and/or other medical treatments. Further, the combat medical simulators have joints that provide realistic ranges of motions to enhance the realism of the training experience.
Another reference has been made to another patent no. WO2014150605 by Leschinsky, Boris dated 2014.03.11 titled, “Multi-Mode Inflatable Limb Occlusion Device”. The invention discloses a multi-mode inflatable limb occlusion device (100, 200) comprising a controller (110, 210) for inflation of a limb occlusion cuff (180, 280) is configured to operate in at least two of the following three operating modes: a tourniquet mode to occlude a limb for a period of time; a remote conditioning mode for periodic occlusion and release of blood flow through the limb; and a blood pressure monitoring mode for detecting blood pressure of a subject.
Another reference has been made to another US patent no. US4479494A by Western Clinical Engineering Ltd. dated 1982-01-05 titled “Adaptive pneumatic tourniquet”. The invention relates to a pneumatic tourniquet for maintaining occluded or restricted blood flow into a patient's limb includes an inflatable cuff, a pressurizing mechanism for pressurizing the cuff, a pressure relief mechanism for depressurizing the cuff, a block pressure sensing mechanism for sensing the patient's systolic blood pressure and for producing a blood pressure output signal representative thereof, and a pressure regulator mechanism responsive to the blood pressure output signal for selectively activating the pressurizing mechanism and the pressure relief mechanism to maintain a substantially constant pressure difference between the cuff pressure and the patient's systolic blood pressure.
Another reference has been made to another US patent no. US8652164B1 by Kevin Aston dated 2011-05-04 titled, “Rapid use field tourniquet”. The present invention relates to the tourniquet is a lightweight, compact, and highly efficient device that can be used to assist in the control of life threatening extremity haemorrhage. The tourniquet utilizes a ratchet mechanism to obtain a mechanical advantage when tightening the tourniquet. A ratchet assembly is located a distance away from a strap end of the tourniquet and overlays a contiguous portion of the strap, allowing the tourniquet to be tightened while minimizing pinch, and further includes an elongated ratchet lever for ease of use, requiring minimal, if any, fine motor skills. The design also includes an indicator region for assistance in use of the device and a sealed and tapered strap-end with indicator for efficient use.
Reference has been made to another US patent no. US20080243173A1 by Patricia Thorpe dated 2006-12-13 titled, “Bi-Directional Tourniquet”. The present invention relates to the a tourniquet comprising a band comprised of an elastic and flexible material, the band having a width and a length, a first end and a second end, and a first face and second face, where at least a portion of the first face comprises hook-type fastener means located within a third of the band at the first end, within a third of the band at the second end, and within a middle third of the band, and where the second face comprises loop-type fastener means spanning the length of the second face.
Reference has been made to another US patent no. US7981135B2 by Patricia Thorpe dated 2006-12-13 titled, “Garment with affixed tourniquet”. The present invention provides an article of clothing having a tourniquet affixed to the clothing at one end of the tourniquet, the tourniquet comprising a band comprised of an elastic and flexible material, the band having a width and a length, a first end and a second end, and a first face and second face, where at least a portion of the first face comprises hook-type fastener means, and where the second face comprises loop-type fastener means.
Another reference has been made to patent no. WO2018213615A2 by Legionarius Llc. dated 2017-05-17 titled “Wearable device”. The invention features methods and devices for controlling bleeding from blood vessels that may be damaged as a result of trauma or impact with an object, such as a bullet or shrapnel. The device may be wearable by a user and include one or more components, such as wound sealant and multiple inflatable balloons/ bladders. The device may be integrated into a garment, e.g., a vest, jacket, trousers, or full body suit. Once triggered (automatically or manually), the device may be used to deliver wound sealant to a wound site and/or pressure to the wound site by selective inflation of one or more balloons over exsanguinating blood vessels that may be damaged, thereby stopping or minimizing the bleeding.
Another reference has been made to US patent no. US20200205842A1 by Patricia Thorpe dated 2007-08-24 titled, “Tourniquet system”. The present invention provides a tourniquet system embedded within the garment, the tourniquet system including a band, an optional bar, and an anti-pinch plate. The bar comprises an elongate portion of material having a first end portion, an intermediate portion, and a second end portion, at least one aperture formed in the bar so as to accept the band and allow the band to pass there through, at least one locking protrusion that extends from at least one of the first end portion or the second end portion. The anti-pinch plate includes one or more band receiving apertures formed so as to accept the band and allow the band to pass there through, wherein the anti-pinch plate includes one or more locking notches formed substantially along an edge portion of the anti-pinch plate, wherein the locking notches provide a means for securing at least a portion of the bar to the anti-pinch plate.
However, none of the above discussed inventions provides an improved combat pneumatic tourniquet and methods of use thereof. The devices available in the market according to the above references provide less convenient system in the device and face difficulty during operation. The present invention relates to the new user friendly combat pneumatic tourniquet designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios to stop the bleeding within 20 seconds. It is the world’s first, battery operated, rugged and portable Combat Pneumatic Tourniquet.
Objectives of the invention:
The main objective of the present invention is to provide new, user friendly and an improved combat pneumatic tourniquet and methods of use thereof.
Another objective of the present invention is to provide combat pneumatic tourniquet designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios.
Yet another objective of the invention is to provide an air tight pressure cuff that is wrapped around injured limb that may have been amputated, or suffered a heavy bleeding arterial injury.
Yet another objective of the invention is to provide an improved system that consists of battery operated control unit connected to the cuff by a connecting tube, and pumps air into the cuff in order to inflate it, which in turn exerts required pressure on the injured limb to stop the bleeding within 20 seconds.
Yet another objective of the invention is to provide an improved system wherein the cuff can be disconnected from the control unit and maintains pressure independently till the injured reaches a medical facility.
Yet another objective of the invention is to provide an improved light weight system wherein the complete unit weighs less than 1.5 kg when enclosed in a carrying pouch and its dimensions do not exceed 30 cm x 20 cm x 20 cm.
Yet another objective of the invention is to provide an improved light weight detachable system wherein each unit comes with multiple inflatable cuffs that may be detached and hold pressure independently from the control unit.
Yet another objective of the invention is to provide an improved light weight detachable system wherein a single unit of combat pneumatic tourniquet can cater to multiple amputations, arterial bleeding wounds, etc.
Summary of the invention:
The present invention provides an improved combat pneumatic tourniquet designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios. It consists of an air tight pressure cuff that is wrapped around injured limb that may have been amputated, or suffered a heavy bleeding arterial injury. A battery operated Control Unit is connected to the cuff by a connecting tube, and pumps air into the cuff in order to inflate it, which in turn exerts required pressure on the injured limb to stop the bleeding within 20 seconds. The cuff can be disconnected from the control unit and maintains pressure independently till the injured reaches a medical facility.
The complete unit weighs less than 1.5 kg when enclosed in a carrying pouch and its dimensions do not exceed 30 cm x 20 cm x 20 cm. Each unit in the system comes with multiple inflatable cuffs that may be detached and hold pressure independently from the control unit.
Statement of the invention:
Accordingly, the present invention provides an improved combat pneumatic tourniquet and method of use thereof, wherein, said tourniquet is lightweight, battery operated, rugged and portable and comprises of Outer control box (1), On-Off switch (2), Circuit plate (3), Sensor (4), D.C. motor and pump (5), Inflatable Cuff (6), Battery cells (7), Metal nozzle (8), connecting tube (9) such that said inflatable cuff is wrapped around the injured limb approximately 2” away from site of injury and secured using adjustable velcro connectors on the Inflatable cuff, a battery operated Control Unit is connected to the cuff, and pumps air into the cuff in order to inflate it, which exerts pressure on the injured limb to stop the bleeding within 20 seconds.
Brief Description of Drawings:
Figure 1, shows detailed working and use of the each component of the Control Unit of an improved combat pneumatic tourniquet; wherein it consists of Outer control box (1), On-Off switch (2), Circuit plate (3), Sensor (4), D.C. motor and pump (5), Inflatable Cuff (6), Battery cells (7), Metal nozzle (8), connecting tube (9). The components such as:
• Outer box (1): it can be made in either A.B.S or P.P material.
• On-Off switch (2): this switch is to start the apparatus and after sustaining the required pressure the apparatus can be switched off.
• Circuit plate (3): the role of this circuit plate is to give the proper current to the motor and the pump to inject the pressure in the belt, also it indicates the pressure on the display, which helps to switch off the apparatus. This also guides the sensor to show the pressure on the display screen.
• Sensor (4): it regulates the pressure and controls the motor speed when required, fast or slow.
• D.C. motor and pump (5): the motor with pump helps the apparatus to inflate the pressure of the inflatable cuff, so that the blood flow from the artery either stops or minimizes.
• Inflatable Cuff (6): The inflatable cuff made of cotton is to tie up where the injury has occurred and also to sustain the desired pressure so that there is no blood flow/ reduced blood flow. This way we can reduce blood loss.
• Battery cells (7): provides the electrical current to the circuit of the apparatus.
• Metal nozzle (8): it ties up the inflating belt to the apparatus so that we can maintain the pressure without the leakage.
Figure 2, shows front view of improved combat pneumatic tourniquet; wherein it consists of On-Off switch/Button (2), a placement strap (10) is placed at far end of the edge of wound and wrapped inflatable Cuff (6) on the limb. This ensures that the cuff is placed at correct distance from the wound. A secured inflatable Cuff (6) with velcro connectors and Connective tube (9).
Figure 3, shows placing of Placement Strap (10) and inflatable cuff (6). Placement strap (10) is placed at far end of the edge of wound and wrapped inflatable Cuff (6) on the limb. This ensures that the cuff is placed at correct distance from the wound
Figure 4, shows securing of Inflatable Cuff (6) with velcro connectors.
Figure 5, shows starting of Control Unit.
Figure 6, shows stopping of Control Unit.
Figure 7, shows block diagram which illustrates the operation/working of the improved combat pneumatic tourniquet. It represents control unit (1), battery (7), pump (5), PCB circuit (3), sensor (4), and display (11).
Detailed description of the invention:
It should be noted that the particular description with features, designs, components, construction, working and embodiments set forth in the specification below are merely exemplary of the wide variety and arrangement of instructions which can be employed with the present invention. The present invention maybe embodied in other specific forms without departing from the spirit or essential characteristics thereof. All the features disclosed in this specification may be replaced by similar other or alternative features performing similar or same or equivalent purposes. Thus, unless expressly stated otherwise, they all are within the scope of present invention. Various modifications or substitutions are also possible without departing from the scope or spirit of the present invention. Therefore, it is to be understood that this specification has been described by way of the most preferred embodiments and for the purposes of illustration and not limitation.
The present invention provides an improved combat pneumatic tourniquet. The system consists of various components Outer control box (1), On-Off switch (2), Circuit plate (3), Sensor (4), D.C. motor and pump (5), Inflatable Cuff (6), Battery cells (7), Metal nozzle (8), connecting tube (9). An improved combat pneumatic tourniquet is the world’s first pneumatic tourniquet designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios. The present invention further consists On-Off switch/Button (2), a placement strap (10) is placed at far end of the edge of wound and wrapped inflatable Cuff (6) on the limb. This ensures that the cuff is placed at correct distance from the wound. A secured inflatable Cuff (6) with velcro connectors and Connective tube (9).
The Combat pneumatic tourniquet consists of an air tight pressure cuff (6) that is wrapped around injured limb that may have been amputated, or suffered a heavy bleeding arterial injury. A battery operated Control Unit (1) is connected to the cuff, and pumps air into the cuff in order to inflate it, which in turn exerts required pressure on the injured limb to stop the bleeding within 20 seconds. The cuff can be disconnected from the control unit and maintains pressure independently till the injured reaches a medical facility.
The complete unit weighs less than 1.5 kg when enclosed in a carrying pouch and its dimensions do not exceed 30 cm x 20 cm x 20 cm. Each unit in the system comes with multiple inflatable cuffs that may be detached and hold pressure independently from the control unit. Hence a single unit of combat pneumatic tourniquet can cater to multiple amputations, arterial bleeding wounds, etc.
Before usage of the device, it is checked that connective tubing is tightly attached to control unit. If not, it is to be done manually. The device consists of 4xAA Batteries which are required to be inserted in the back panel of the pneumatic tourniquet for powering the system.
The system and methods involved in the present invention comprises of following steps. First, placing strap at far end of the edge of wound and wrapped inflatable Cuff on limb. This ensures that the cuff is placed at correct distance of 2” above the wound. Secondly, secured inflatable Cuff with adjustable velcro connectors. Thirdly, Pressing red button on control unit which starts the application of pressure on the limb. Fourth, pressing of red button on control unit when bleeding stops. This maintains existing pressure.
In an exemplary embodiment, the said device is new, user friendly and improved combat pneumatic tourniquet.
In another exemplary embodiment, the said device is designed to be used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios;
In another exemplary embodiment, the said device provides an air tight pressure cuff (6) that is wrapped around injured limb that may have been amputated, or suffered a heavy bleeding arterial injury.
In another exemplary embodiment, the said device consists of battery operated control unit connected to the cuff by a connecting tube (9), and pumps air into the cuff in order to inflate it, which in turn exerts required pressure on the injured limb to stop the bleeding within 20 seconds.
In another exemplary embodiment, the said device can be disconnected from the control unit (1) and maintains pressure independently till the injured reaches a medical facility.
In another exemplary embodiment, the said device is an improved light weight system wherein the complete unit weighs less than 1.5 kg when enclosed in a carrying pouch and its dimensions do not exceed 30 cm x 20 cm x 20 cm.
In another exemplary embodiment, the said device comprises of detachable system wherein each unit comes with multiple inflatable cuffs (6) that may be detached and hold pressure independently from the control unit (1).
In another exemplary embodiment, the said device comprises of Outer control box (1) which is made up of either A.B.S (acrylonitrile-butadiene-styrene) or P.P (polypropylene) material.
In another exemplary embodiment, the said device comprises of On-Off switch (2) wherein used to start the apparatus and after sustaining the required pressure the apparatus can be switched off.
In another exemplary embodiment, the said device comprises of circuit plate (3) wherein it provides proper current to the motor and the pump to inject the pressure in the belt.
In another exemplary embodiment, the said device comprises of circuit plate wherein it indicates the pressure on the display, which helps to switch off the apparatus.
In another exemplary embodiment, the said device comprises of circuit plate wherein it guides the sensor (4) to show the pressure on the display screen.
In another exemplary embodiment, the said device comprises of Sensor wherein it regulates the pressure and controls the motor speed when required, fast or slow.
In another exemplary embodiment, the said device comprises of D.C motor and pumps (5) wherein it helps the apparatus to inflate the pressure of the inflatable cuff, so that the blood flow from the artery either stops or minimizes.
In another exemplary embodiment, the said device comprises of Inflatable Cuff (6) wherein the materials to be used for Inflatable Cuff is cotton; it is to tie up where the injury has occurred and also to sustain the desired pressure so that there is no blood flow/reduced blood flow.
In another exemplary embodiment, the said device comprises of Battery cells (7) wherein they provides the electrical current to the circuit of the apparatus.
In another exemplary embodiment, the said device comprises of Metal nozzle wherein it ties up the inflating belt to the apparatus so that we can maintain the pressure without the leakage.
In another exemplary embodiment, control Philosophy of the said device comprises of following steps:
• Push button
• Vacuum pump start at high speed, showing increasing pressure on display and tightening of inflatable cuff.
• Pump slows after reaching 70% of the set pressure.
• Pressure is reached and maintain under blocked tube with metal clips.
• Process is repeated.
Method to use improved Defender Blood Seal combat pneumatic tourniquet to stop bleeding from a limb of a subject comprising the following steps:
a) Identify the area where inflatable cuff is to be placed. It should be placed approx. 2” away from site of injury.
b) Wrap the inflatable cuff around the injured limb, and secure using adjustable velcro connectors on the cuff.
c) Start the sequence by pushing the start button on Control Unit.
d) The pneumatic tourniquet will start tightening the cuff upto 140Mmh and then slowly reache upto 200Mmh in approx. 25 seconds.
e) Metal clamps will be used to block and maintain the pressure.
f) The control unit can be freed by removing the connecting tube attached to the inflatable sleeve from the control unit. Now, the control unit can be used for the next injured person by attaching another inflatable sleeve. Each sleeve, once inflated maintains pressure independently.
In yet another embodiment usage instruction of improved combat pneumatic tourniquet is given, comprising of following steps:
a) Place far end of Placement Strap on edge of wound and wrap Inflatable Cuff on limb. This ensures that the cuff is placed at correct distance from the wound (fig. 3).
b) Secure Inflatable Cuff with velcro connectors (fig. 4).
c) Press red button on Control Unit. This starts the application of pressure on limb (fig. 5).
d) Press red button on Control Unit when bleeding stops. This maintains existing pressure (fig. 6).

So accordingly, the present invention provides an improved combat pneumatic tourniquet and method of use thereof, wherein, said tourniquet is lightweight, battery operated, rugged and portable and comprises of Outer control box (1), On-Off switch (2), Circuit plate (3), Sensor (4), D.C. motor and pump (5), Inflatable Cuff (6), Battery cells (7), Metal nozzle (8), connecting tube (9) such that said inflatable cuff is wrapped around the injured limb approximately 2” away from site of injury and secured using adjustable velcro connectors on the Inflatable cuff, a battery operated Control Unit is connected to the cuff, and pumps air into the cuff in order to inflate it, which exerts pressure on the injured limb to stop the bleeding within 20 seconds.
In an embodiment, said pneumatic tourniquet is single unit containing Outer box (1) made up of either A.B.S (acrylonitrile-butadiene-styrene) or P.P (polypropylene) material.
In another embodiment, On-Off switch (2) is used to start the apparatus and can be switched off after sustaining the required pressure the apparatus.
In another embodiment, the circuit plate (3) gives the proper current to the motor and the pump to inject the pressure in the belt.
In another embodiment, the circuit plate (3) guides the sensor to indicate the pressure on the display which indicates to switch off the apparatus.
In another embodiment, D.C motor and pump (5) helps the apparatus to inflate the pressure of the inflatable cuff (6) so that the blood flow from the artery either stops or minimizes.
In another embodiment, Pump slows after reaching 70% of the set pressure.
In another embodiment, Inflatable Cuff (6) is made up of cotton that is to be tied up where the injury has occurred and sustaining the desired pressure so that there is no blood flow/ reduced blood flow.
In another embodiment, Battery cells (7) provides the electrical current to the circuit of the apparatus.
In another embodiment, Metal nozzle (8) ties up the inflating belt to the apparatus so that we can pressure can be maintained without the leakage.
In another embodiment, said pneumatic tourniquet is light weight weighing less than 1.5 Kg that provides an air tight pressure inflatable cuff that is wrapped around injured limb that has been amputated, or suffered a heavy bleeding arterial injury.
In another embodiment, the said pneumatic tourniquet’s dimensions do not exceed 30 cm x 20 cm x 20 cm.
In another embodiment, pressing the red button on control unit starts the application of pressure on the limb and pressing the red button again when bleeding stops to maintain existing pressure.
In another embodiment, the pneumatic tourniquet is a portable, detachable system having inflatable cuff which can be disconnected from the control unit and maintain pressure independently till the injured person reaches a medical facility.
In another embodiment, a method to use improved combat pneumatic tourniquet to stop bleeding from a limb of a subject comprising the following steps:
a) Identifying the area where inflatable cuff is to be placed at approximately 2” away from site of injury;
b) Wrapping the inflatable cuff around the injured limb, and securing using adjustable velcro connectors on the cuff;
c) Starting the sequence by pushing the start button on Control Unit;
d) Said pneumatic tourniquet starts tightening the cuff upto 140 mmHg and then slowly reaching upto 200 mmHg in approx. 25 seconds;
e) Using metal clamps to block and maintain the pressure;
f) Freeing the control unit by removing the connecting tube attached to the inflatable sleeve from the control unit so as to use the control unit for the next injured person by attaching another inflatable sleeve in a way that each sleeve, once inflated, maintains pressure independently.

While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects and, therefore, the aim in the present invention is to cover all such changes and modifications as fall within the true spirit and scope of this invention.
Advantages of the invention:
1. Used by armed forces, police and paramilitary forces as well as first responders to accident/disaster scenarios.
2. The bleeding from the injured limb can be stopped in 20 seconds only.
3. Light weighted.
4. Compact in size.
5. Detachable system.
6. Portable.

,CLAIMS:We Claim:
1. An improved combat pneumatic tourniquet and method of use thereof, wherein, said tourniquet is lightweight, battery operated, rugged and portable and comprises of Outer control box (1), On-Off switch (2), Circuit plate (3), Sensor (4), D.C. motor and pump (5), Inflatable Cuff (6), Battery cells (7), Metal nozzle (8), connecting tube (9) such that said inflatable cuff is wrapped around the injured limb approximately 2” away from site of injury and secured using adjustable velcro connectors on the Inflatable cuff, a battery operated Control Unit is connected to the cuff, and pumps air into the cuff in order to inflate it, which exerts pressure on the injured limb to stop the bleeding within 20 seconds.
2. The improved combat pneumatic tourniquet as claimed in claim 1; wherein said pneumatic tourniquet is single unit containing Outer box (1) made up of either A.B.S (acrylonitrile-butadiene-styrene) or P.P (polypropylene) material.
3. The improved combat pneumatic tourniquet as claimed in claim 1; wherein On-Off switch (2) is used to start the apparatus and can be switched off after sustaining the required pressure the apparatus.
4. The improved combat pneumatic tourniquet as claimed in claim 1; wherein the circuit plate (3) give the proper current to the motor and the pump to inject the pressure in the belt.
5. The improved combat pneumatic tourniquet as claimed in claim 1; wherein the circuit plate (3) guides the sensor to indicate the pressure on the display which indicates to switch off the apparatus.
6. The improved combat pneumatic tourniquet as claimed in claim 1; wherein D.C motor and pump (5) helps the apparatus to inflate the pressure of the inflatable cuff (6) so that the blood flow from the artery either stops or minimizes.
7. The improved combat pneumatic tourniquet as claimed in claim 1; wherein Pump slows after reaching 70% of the set pressure.
8. The improved combat pneumatic tourniquet as claimed in claim 1; wherein Inflatable Cuff (6) is made up of cotton that is to be tied up where the injury has occurred and sustaining the desired pressure so that there is no blood flow/ reduced blood flow.
9. The improved combat pneumatic tourniquet as claimed in claim 1; wherein Battery cells (7) provides the electrical current to the circuit of the apparatus.
10. The improved combat pneumatic tourniquet as claimed in claim 1; wherein Metal nozzle (8) ties up the inflating belt to the apparatus so that we can pressure can be maintained without the leakage.
11. The combat pneumatic tourniquet as claimed in claim; wherein said pneumatic tourniquet is light weight weighing less than 1.5 Kg that provides an air tight pressure inflatable cuff that is wrapped around injured limb that has been amputated, or suffered a heavy bleeding arterial injury.
12. The combat pneumatic tourniquet as claimed in claim 1; wherein the said pneumatic tourniquet’s dimensions do not exceed 30 cm x 20 cm x 20 cm.
13. The combat pneumatic tourniquet as claimed in claim 1; wherein pressing the red button on control unit starts the application of pressure on the limb and pressing the red button again when bleeding stops to maintain existing pressure.
14. The combat pneumatic tourniquet as claimed in claim 1; wherein the pneumatic tourniquet is a portable, detachable system having inflatable cuff which can be disconnected from the control unit and maintain pressure independently till the injured person reaches a medical facility.
15. A method to use improved combat pneumatic tourniquet to stop bleeding from a limb of a subject comprising the following steps:
g) Identifying the area where inflatable cuff is to be placed at approximately 2” away from site of injury;
h) Wrapping the inflatable cuff around the injured limb, and securing using adjustable velcro connectors on the cuff;
i) Starting the sequence by pushing the start button on Control Unit;
j) Said pneumatic tourniquet starts tightening the cuff upto 140 mmHg and then slowly reaching upto 200 mmHg in approx. 25 seconds;
k) Using metal clamps to block and maintain the pressure;
l) Freeing the control unit by removing the connecting tube attached to the inflatable sleeve from the control unit so as to use the control unit for the next injured person by attaching another inflatable sleeve in a way that each sleeve, once inflated, maintains pressure independently.