An inflatable pelvic trauma tourniquet

By designing an inflatable pelvic trauma emergency fixator with clamping and fixing connection mechanisms, and utilizing an ethane-based cooling mechanism, rapid installation and effective bleeding and pain relief are achieved. This solves the problems of secondary injury and limited functionality caused by installation in existing technologies, and improves patient comfort.

CN116269987BActive Publication Date: 2026-05-12FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOURTH MILITARY MEDICAL UNIVERSITY
Filing Date
2023-02-24
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing inflatable emergency immobilizers are prone to causing secondary injuries due to patient movement during installation, and their limited functionality fails to effectively reduce bleeding and relieve pain, resulting in severe suffering for patients during transfer.

Method used

An inflatable pelvic trauma first aid fixation device was designed, which includes a clamping mechanism and a fixing connection mechanism. It uses a splint and an airbag for fixation, and releases ethane chloride in the airbag through a built-in ethane chloride cooling mechanism to cool and apply ice, thereby reducing bleeding and relieving pain.

Benefits of technology

It enables a quick and convenient installation process, reduces secondary harm to patients, and effectively reduces bleeding and pain through the cooling effect of ethane chloride, thus improving patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an inflatable pelvic trauma first-aid fixator, and relates to the technical field of medical devices.The system comprises a clamping mechanism and a fixed connection mechanism.The clamping mechanism comprises a first clamping plate and a second clamping plate, and the opposite side end faces of the first clamping plate and the second clamping plate are respectively fixedly provided with a first air bag and a second air bag.The fixed connection mechanism comprises a fixed connection plate, and the upper and lower end faces of the fixed connection plate are respectively provided with a first strip hole and a second strip hole at the front and rear positions.The upper end faces of the first clamping plate and the second clamping plate are respectively fixedly provided with a plurality of fixed bolts, and the upper end positions of the fixed bolts are respectively threadedly provided with a butterfly buckle.The fixator solves the problems that general first-aid fixators are troublesome to install and are prone to cause secondary injury due to the movement of the position of a patient, and solves the problems that general fixators have a single function, cannot reduce bleeding and pain, and patients are prone to suffer pain when wearing.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an inflatable pelvic trauma emergency fixation device. Background Technology

[0002] Pelvic and hip joint injuries are common orthopedic traumas in clinical practice. Sudden accidents such as traffic accidents, workplace accidents, and natural disasters often cause injuries to the pelvis and hip joints. However, there are certain difficulties in providing first aid to such patients at the scene. If the pelvis and hip joints are not securely fixed, movement and displacement of the hip joint can occur, leading to secondary damage to the pelvis and hip joints and increasing the difficulty of later treatment. Therefore, it is necessary to use an immobilizer to fix the injured area and prevent the affected area from moving freely. Inflatable first aid immobilizers are generally equipped with an inflatable airbag, which wraps around the affected area after inflation, making them more comfortable to use.

[0003] Typical inflatable first aid restraints used for joint injuries require significant movement of the patient during installation, which can easily cause secondary injuries to the patient's body during the movement. In addition, they generally only provide fixation and do not have analgesic or hemostatic effects, making the process of transferring the patient to the hospital after the restraint is installed quite painful. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an inflatable pelvic trauma emergency fixation device, which solves the problems of conventional emergency fixation devices being cumbersome to install, prone to causing secondary injury due to patient displacement, and also addresses the issues of conventional fixation devices having limited functionality, failing to reduce bleeding and provide pain relief, and causing pain to patients when wearing them.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an inflatable pelvic trauma emergency fixation device, comprising a clamping mechanism and a fixing connection mechanism. The clamping mechanism includes a first clamp plate and a second clamp plate, with a first airbag and a second airbag respectively fixedly disposed on opposite sides of the first clamp plate and the second clamp plate. The fixing connection mechanism includes a fixing connection plate, with a first strip hole and a second strip hole respectively extending through the upper and lower ends of the fixing connection plate near the front and rear sides. Multiple fixing bolts are fixedly disposed on the upper ends of the first clamp plate and the second clamp plate, with butterfly buckles threaded onto the upper ends of the multiple fixing bolts. The multiple fixing bolts are movably disposed inside the first strip hole and the second strip hole.

[0008] Side hanging buckets are fixedly installed at the lower middle position of the middle of the side face of the No. 1 clamping plate and the No. 2 clamping plate, which are far apart from each other. Cooling mechanisms are installed inside the side hanging buckets. Each cooling mechanism includes a pressure bottle. Each pressure bottle contains chloroethane. A sealing base is fixedly installed at the upper position inside the pressure bottle. A bottle presser is installed through the sealing base. A connecting pipe is installed inside the bottle presser. The lower end of the connecting pipe leads to the inside of the pressure bottle. A nozzle is fixedly installed at the upper position of one side of the bottle presser. The nozzle is fixedly connected to the upper position of the connecting pipe. A connecting hose is fixedly sleeved between the nozzle and the No. 1 airbag and the No. 2 airbag, respectively.

[0009] Preferably, a telescopic cavity is provided inside the sealing base near the middle of the bottle press, and a tension spring is movably installed inside the telescopic cavity. A ring plate is fixedly sleeved in the middle of the bottle press near the inside of the telescopic cavity, and the tension spring is movably installed on the lower end face of the ring plate.

[0010] Preferably, a receiving groove is provided at the center of the lower end face of the sealing base, and a pressure plug is fixedly provided at the lower end of the bottle press, the pressure plug being movably disposed inside the receiving groove.

[0011] Preferably, a reinforcing ridge is fixedly provided at the middle position of the upper end face of the fixed connecting plate.

[0012] Preferably, a first reinforcing collar and a second reinforcing collar are fixedly installed on the upper and lower sides of the front and rear end faces of the first and second clamping plates, respectively, and multiple stabilizing rods are slidably sleeved between each pair of the first and second reinforcing collars.

[0013] Preferably, multiple lifting rods are fixedly installed on the lower side of the end face of the first clamping plate and the second clamping plate on opposite sides.

[0014] Preferably, each of the No. 1 airbag and the No. 2 airbag has a connector fixedly provided on the opposite side end face, and multiple connectors are respectively connected to multiple connecting hoses through the No. 1 clamp and the No. 2 clamp.

[0015] Preferably, both the No. 1 clamping plate and the No. 2 clamping plate are made of ABS high-strength lightweight plastic.

[0016] Working principle: During use, place the No. 1 and No. 2 splints on both sides of the patient's hip joint, ensuring they fit snugly against the body. Install the fixing connecting plate between the upward-facing ends of the No. 1 and No. 2 splints. By adjusting the relative positions of multiple fixing bolts inside the No. 1 and No. 2 slots, the spacing between the No. 1 and No. 2 splints can be controlled to accommodate patients of different body types. Pressing the pressure bottle injects ethane chloride from the pressure bottle into the No. 1 and No. 2 airbags, causing them to inflate and wrap around both sides of the pelvis. The ethane chloride released from the pressure bottle vaporizes and absorbs a large amount of heat, significantly reducing the surface temperature of the No. 1 and No. 2 airbags, providing a cooling compress to the affected area, reducing bleeding and relieving pain.

[0017] (III) Beneficial Effects

[0018] This invention provides an inflatable pelvic trauma first aid fixation device. It has the following beneficial effects:

[0019] 1. This invention provides an inflatable pelvic trauma emergency fixation device. The fixation device is easy to assemble and use, and can be quickly assembled. The first and second splints are clamped on the affected area from both sides, and the two are combined into a whole by a fixed connecting plate. The installation can be completed without turning or moving the patient, minimizing secondary injury to the patient caused by the installation of the emergency fixation device. In addition, the first and second airbags are used to wrap and protect the affected area.

[0020] 2. This invention provides an inflatable pelvic trauma emergency fixation device. The device uses chloroethane to fill the first and second air bladders. Chloroethane has a boiling point close to 10 degrees Celsius at normal pressure. After being filled into the air bladders, it vaporizes and absorbs a large amount of heat, which greatly reduces the surface temperature of the air bladders. This allows for cooling and ice application to the wrapped patient area, thereby reducing bleeding and relieving pain. Attached Figure Description

[0021] Figure 1 This is an isometric view of the present invention;

[0022] Figure 2 This is a schematic diagram of the clamping mechanism of the present invention from the axial side.

[0023] Figure 3 This is a schematic diagram of the fixed connection mechanism of the present invention from an isometric perspective.

[0024] Figure 4 This is a side sectional view of the cooling mechanism of the present invention;

[0025] Figure 5 This is an enlarged schematic diagram of the structure at point B in this invention;

[0026] Figure 6 This is an enlarged schematic diagram of the structure at point A of the present invention.

[0027] The components include: 1. Clamping mechanism; 2. Clamping plate No. 1; 3. Clamping plate No. 2; 4. Airbag No. 1; 5. Airbag No. 2; 6. Side hanging bucket; 7. Cooling mechanism; 8. Reinforcing collar No. 1; 9. Fixed connection mechanism; 10. Fixed connection plate; 11. Reinforcing ridge; 12. Strip hole No. 1; 13. Strip hole No. 2; 14. Fixing bolt; 15. Pressure bottle; 16. Nozzle; 17. Connecting hose; 18. Connecting pipeline; 19. Telescopic cavity; 20. Sealing base; 21. Receiving groove; 22. Pressure plug; 23. Tension spring; 24. Ring plate; 25. Bottle presser; 26. Butterfly buckle; 27. Connector; 28. Reinforcing collar No. 2; 29. ​​Lifting rod; 30. Stabilizing rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example:

[0029] like Figure 1-6 As shown, this embodiment of the invention provides an inflatable pelvic trauma emergency fixation device, including a clamping mechanism 1 and a fixing connection mechanism 9. The clamping mechanism 1 includes a first clamp plate 2 and a second clamp plate 3. A first airbag 4 and a second airbag 5 are respectively fixedly installed on opposite end faces of the first clamp plate 2 and the second clamp plate 3. The fixing connection mechanism 9 includes a fixing connection plate 10. A first strip hole 12 and a second strip hole 13 are respectively opened through the upper and lower end faces of the fixing connection plate 10 near the front and rear sides. Multiple fixing bolts 14 are respectively fixedly installed on the upper end faces of the first clamp plate 2 and the second clamp plate 3. Each of the multiple fixing bolts 14 is threaded with a butterfly buckle 26 near the upper end. The multiple fixing bolts 14 are respectively movably installed inside the first strip hole 12 and the second strip hole 13. The fixing connection plate 10 is fixed to the upper end faces of the first clamp plate 2 and the second clamp plate 3 by the multiple butterfly buckles 26.

[0030] Side hanging buckets 6 are fixedly installed on the lower side of the middle of the end face of clamp 1 2 and clamp 2 3, which are far apart from each other. Cooling mechanisms 7 are installed inside the side hanging buckets 6. Each cooling mechanism 7 includes a pressure bottle 15. Each pressure bottle 15 contains chloroethane. A sealing base 20 is fixedly installed at the upper end of the pressure bottle 15. A bottle presser 25 is installed through the sealing base 20. A connecting pipe 18 is installed inside the bottle presser 25. The lower end of the connecting pipe 18 leads to the pressure bottle 15. A nozzle 16 is fixedly installed at the upper end of one side of the bottle presser 25. The nozzle 16 is fixedly connected to the upper end of the connecting pipe 18. A connecting hose 17 is fixedly sleeved between the nozzle 16 and the first airbag 4 and the second airbag 5, respectively.

[0031] A telescopic cavity 19 is provided inside the sealing base 20 near the middle of the bottle press 25. A tension spring 23 is movably installed inside the telescopic cavity 19. A ring plate 24 is fixedly sleeved in the middle of the bottle press 25 near the inside of the telescopic cavity 19. The tension spring 23 is movably installed on the lower end face of the ring plate 24. A receiving groove 21 is provided at the center of the lower end face of the sealing base 20. A pressure plug 22 is fixedly installed at the lower end of the bottle press 25. The pressure plug 22 is movably installed inside the receiving groove 21.

[0032] Pressing the bottle presser 25 causes the pressure plug 22 at the lower end of the bottle presser 25 to move out of the receiving groove 21, exposing the lower opening of the connecting pipe 18 inside the pressure bottle 15. Under pressure, ethane chloride in the pressure bottle 15 enters the first air bladder 4 and the second air bladder 5 through the connecting pipe 18. At room temperature, the ethane chloride vaporizes, causing the first air bladder 4 and the second air bladder 5 to expand and lower the surface temperature, thus cooling and stopping bleeding at the patient's location and relieving pain. After releasing the bottle presser 25, the bottle presser 25 resets under the action of the tension spring 23, and the first air bladder 4 and the second air bladder 5 stop expanding.

[0033] A reinforcing ridge 11 is fixedly installed at the middle position of the upper end face of the fixed connecting plate 10. A first reinforcing collar 8 and a second reinforcing collar 28 are fixedly installed at the upper and lower positions of the front and rear ends of the first clamp plate 2 and the second clamp plate 3, respectively. Multiple stabilizing rods 30 are slidably sleeved between each pair of the first reinforcing collars 8 and the second reinforcing collars 28. Multiple lifting rods 29 are fixedly installed at the lower position of the end face of the first clamp plate 2 and the second clamp plate 3 on the side away from each other. Connectors 27 are fixedly installed at the end face of the first airbag 4 and the second airbag 5 on the side away from each other. Multiple connectors 27 are respectively connected to multiple connecting hoses 17 through the first clamp plate 2 and the second clamp plate 3. The first clamp plate 2 and the second clamp plate 3 are made of ABS high-strength lightweight plastic, which can effectively reduce their weight and facilitate manufacturing.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inflatable pelvic trauma first aid fixation device, comprising a clamping mechanism (1) and a fixing connection mechanism (9), characterized in that: The clamping mechanism (1) includes a first clamping plate (2) and a second clamping plate (3). A first airbag (4) and a second airbag (5) are fixedly installed on opposite sides of the first clamping plate (2) and the second clamping plate (3). The fixed connection mechanism (9) includes a fixed connection plate (10). A first strip hole (12) and a second strip hole (13) are respectively opened through the upper and lower ends of the fixed connection plate (10) near the front and rear sides. Multiple fixing bolts (14) are fixedly installed on the upper ends of the first clamping plate (2) and the second clamping plate (3). A butterfly buckle (26) is threaded on the upper end of each of the multiple fixing bolts (14). The multiple fixing bolts (14) are respectively movably installed inside the first strip hole (12) and the second strip hole (13). Both clamping plates 1 (2) and 2 (3) have side hanging buckets (6) fixedly installed at the lower middle position of the end face away from each other. Each of the side hanging buckets (6) has a cooling mechanism (7) installed inside. Each of the cooling mechanisms (7) includes a pressure bottle (15). Each of the pressure bottles (15) contains chloroethane. Each of the pressure bottles (15) has a sealing base (20) fixedly installed at the upper end of its interior. Each of the sealing bases (20) has a through-hole... Bottle press (25), each of the bottle press (25) is provided with a connecting pipe (18), the lower end of each of the connecting pipes (18) leads to the inside of the pressure bottle (15), each of the bottle press (25) is fixedly provided with a nozzle (16) on one side near the upper end, each of the nozzles (16) is fixedly connected to the upper end of the connecting pipe (18), and each of the nozzles (16) is fixedly fitted with a connecting hose (17) between the first air bag (4) and the second air bag (5).

2. The inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: The sealing base (20) has a telescopic cavity (19) located in the middle of the bottle press (25). A tension spring (23) is movably installed inside the telescopic cavity (19). A ring plate (24) is fixedly sleeved in the middle of the bottle press (25) near the inside of the telescopic cavity (19). The tension spring (23) is movably installed on the lower end face of the ring plate (24).

3. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: The sealing base (20) has a receiving groove (21) at the center of its lower end face, and a pressure plug (22) is fixedly installed at the lower end of the bottle press (25). The pressure plug (22) is movably installed inside the receiving groove (21).

4. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: A reinforcing ridge (11) is fixedly provided at the middle position of the upper end face of the fixed connecting plate (10).

5. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: The first clamp (2) and the second clamp (3) are respectively fixedly provided with a first reinforcing collar (8) and a second reinforcing collar (28) on the upper and lower sides of the front and rear end faces. Multiple stabilizing rods (30) are slidably sleeved between each pair of the first reinforcing collar (8) and the multiple second reinforcing collars (28).

6. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: Multiple lifting rods (29) are fixedly installed on the lower side of the end face of the first clamping plate (2) and the second clamping plate (3) on opposite sides.

7. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: Both the No. 1 airbag (4) and the No. 2 airbag (5) are fixedly provided with connectors (27) on the opposite side of each other. Multiple connectors (27) pass through the No. 1 clamp plate (2) and the No. 2 clamp plate (3) respectively and are connected to multiple connecting hoses (17).

8. An inflatable pelvic trauma first aid fixation device according to claim 1, characterized in that: Both the No. 1 clamping plate (2) and the No. 2 clamping plate (3) are made of ABS high-strength lightweight plastic.