First aid tourniquet

By combining a threaded rod, an arc-shaped block, and a pressure sensor, the problem of inaccurate pressure regulation in existing hemostats is solved, achieving precise hemostasis and reducing tissue damage. At the same time, the use of an airbag and anti-slip strips improves the stability and comfort of the device.

CN224523178UActive Publication Date: 2026-07-21NINGBO MEDICAL CENT LIHUILI HOSPITACL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MEDICAL CENT LIHUILI HOSPITACL
Filing Date
2025-04-01
Publication Date
2026-07-21

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Abstract

The utility model discloses a first -aid hemostat, belongs to the technical field of hemostat, including the hemostat main part, the one side of hemostat main part is provided with adjusting mechanism, the adjusting mechanism includes screw rod, arc block and fixed disc, in the utility model, hemostatic disc and fixed disc clasp and connect, arc block and connecting strip fixed connection, rotate screw rod, fixed disc and hemostatic disc move down, arc block with fixed disc synchronous move down, pressure sensor and the skin or hemostatic material around the affected part contact, through pressure sensor can get the pressure that affected part received in time, convenient to the accurate regulation of pressure, reduce the damage of affected part local tissue while guaranteeing hemostasis effect, through air bag pad no.
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Description

Technical Field

[0001] This utility model relates to the field of hemostatic device technology, and in particular to an emergency hemostatic device. Background Technology

[0002] A hemostat is a medical device used to control bleeding. It works by applying pressure or using other mechanisms to stop blood flow directly to the bleeding site, thereby achieving hemostasis. It is widely used in emergency care.

[0003] For example, Chinese patent CN221533888U discloses a compression device for pre-hospital emergency hemostasis, which includes a connector. The connector has slots on both sides, and sliders are slidably arranged in both slots. A second magnetic block is fixedly arranged on the rear end face of both sliders. A first magnetic block is fixedly arranged on both slots of the connector. A first Velcro is fixedly arranged on one side of one of the connecting straps, and a second Velcro is fixedly arranged on one side of the other connecting strap.

[0004] In the aforementioned patent, although the problem of not being able to adjust the pressure according to the amount of bleeding is solved by using a handle and a lead screw, it is not easy to obtain the specific pressure data of the push block on the wound when the lead screw is turned by the handle. Excessive pressure can easily cause local tissue damage, while insufficient pressure cannot effectively stop bleeding, thus making it difficult to achieve precise adjustment of pressure. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing technology where it is difficult to obtain the specific pressure data of the push block on the wound when the screw is turned by the handle, excessive pressure can easily cause local tissue damage, and insufficient pressure cannot effectively stop bleeding, thus making it difficult to achieve precise pressure adjustment. Therefore, this invention proposes an emergency hemostatic device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an emergency hemostat, comprising a hemostat body, an adjustment mechanism provided on one side of the hemostat body, the adjustment mechanism comprising a threaded rod, an arc-shaped block, and a fixed plate, the threaded rod being threadedly connected to the hemostat body, one end of the threaded rod being fixedly connected to the fixed plate, a hemostat plate being engaged at the bottom of the fixed plate, a guide groove being provided at the bottom of the fixed plate, a guide strip being slidably connected in the guide groove, one side of the guide strip being fixedly connected to the arc-shaped block, a connecting strip being fixedly connected between two arc-shaped blocks, a limit pin being inserted between the connecting strip and the fixed plate, a pressure sensor being embedded in one side of the arc-shaped block, the pressure sensor being electrically connected to a display screen, a sealing cover being fixedly connected to one side of the display screen, and the sealing cover being fixedly connected to the hemostat body.

[0007] Preferably, the threaded rod and the sealing cover are connected by threads, and a buzzer is fixedly connected to one side of the sealing cover.

[0008] Preferably, the buzzer is electrically connected to a timing module, the timing module is electrically connected to the display screen, and the timing module is installed inside the hemostat body.

[0009] Preferably, the hemostat body is rotatably connected to two sides by a first strap and a second strap, and a fixing ring is fixedly connected to one end of the first strap.

[0010] Preferably, one side of the second strap is fixedly connected with a second hook and loop fastener and a first hook and loop fastener, and one side of the first hook and loop fastener is bonded to the second hook and loop fastener.

[0011] Preferably, airbag cushion one and airbag cushion two are fixedly connected to one side of each of the first and second straps, and anti-slip strips are fixedly connected to one side of each of the first and second airbag cushions.

[0012] Preferably, the first airbag and the second airbag are fixedly connected, and an inflation tube is fixedly connected to one side of the first airbag.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the hemostatic disc and the fixed disc are engaged and connected, and the arc-shaped block is fixedly connected to the connecting strip. When the threaded rod is rotated, the fixed disc and the hemostatic disc move down, and the arc-shaped block moves down synchronously with the fixed disc. The pressure sensor comes into contact with the skin or hemostatic material around the affected area. The pressure sensor can obtain the pressure on the affected area in a timely manner, which facilitates the precise adjustment of the pressure and reduces damage to the local tissues of the affected area while ensuring the hemostatic effect.

[0015] 2. In this utility model, anti-slip strips are fixedly connected to one side of both airbag pad one and airbag pad two. Airbag pad one and airbag pad two are fixedly connected. After the entire device is worn, the air pressure inside airbag pad one and airbag pad two is adjusted by an air pump, and airbag pad one and airbag pad two expand. The anti-slip strip side matches and contacts the patient. Through airbag pad one and airbag pad two, the pressure of strap one and strap two on the skin can be reduced. At the same time, the anti-slip strip can increase the friction between the hemostat and the skin and reduce the displacement of the hemostat during use. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of an emergency hemostatic device;

[0017] Figure 2 This utility model provides a schematic diagram of the anti-slip strip structure installation for an emergency hemostatic device;

[0018] Figure 3 This utility model provides a schematic diagram of the connection between the threaded rod and the fixed disc structure of an emergency hemostat;

[0019] Figure 4This utility model provides a schematic diagram of the installation of a pressure sensor structure for an emergency hemostatic device.

[0020] Illustration: 1. Hemostat body; 2. Airbag cushion one; 3. Airbag cushion two; 4. Bandage one; 5. Velcro one; 6. Velcro two; 7. Bandage two; 8. Threaded rod; 9. Sealing cap; 10. Display screen; 11. Inflation tube; 12. Anti-slip strip; 13. Arc-shaped block; 14. Fixing plate; 15. Limiting pin; 16. Hemostatic plate; 17. Guide strip; 18. Connecting strip; 19. Pressure sensor; 20. Buzzer. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Refer to Figures 1-4 As shown: An emergency hemostat includes a hemostat body 1. An adjustment mechanism is provided on one side of the hemostat body 1. The adjustment mechanism includes a threaded rod 8, an arc-shaped block 13, and a fixed plate 14. The threaded rod 8 is threadedly connected to the hemostat body 1. One end of the threaded rod 8 is fixedly connected to the fixed plate 14. A hemostat plate 16 is engaged at the bottom of the fixed plate 14. A guide groove is provided at the bottom of the fixed plate 14, and a guide strip 17 is slidably connected within the guide groove. One side of the guide strip 17 is fixedly connected to the arc-shaped block 13. A connecting strip is fixedly connected between two arc-shaped blocks 13. 18. A limit pin 15 is inserted between the connecting strip 18 and the fixed plate 14. A pressure sensor 19 is embedded on one side of the arc block 13. The pressure sensor 19 is electrically connected to the display screen 10. A sealing cover 9 is fixedly connected to one side of the display screen 10. The sealing cover 9 is fixedly connected to the hemostat body 1. The threaded rod 8 is connected to the sealing cover 9 by a thread. A buzzer 20 is fixedly connected to one side of the sealing cover 9. The buzzer 20 is electrically connected to a timing module. The timing module is electrically connected to the display screen 10. The timing module is installed inside the hemostat body 1.

[0024] The threaded connection between the threaded rod 8 and the hemostat body 1 facilitates adjustment of the distance between the fixed plate 14 and the hemostat body 1, thereby changing the usage position of the fixed plate 14 and the hemostat plate 16. The guide groove guides the installation of the guide strip 17 at the bottom of the fixed plate 14. The connecting strip 18 connects the two arc-shaped blocks 13, ensuring the synchronous installation and removal of the two arc-shaped blocks 13 on the outer ring surface of the fixed plate 14. The limiting pin 15 limits the installation of the connecting strip 18 and the arc-shaped blocks 13, reducing the shaking of the arc-shaped blocks 13 during use. The pressure sensor 19 detects the pressure on the affected area, facilitating the adjustment of the applied pressure and reducing damage to the affected tissue by the hemostat plate 16. The display screen 10 displays pressure and timing information, and the buzzer 20 provides a timing reminder to avoid excessive pressure application time affecting the recovery of the affected area.

[0025] Example 2: Figure 1 and Figure 2 As shown, the hemostat body 1 is rotatably connected to two sides with a first strap 4 and a second strap 7. One end of the first strap 4 is fixedly connected to a fixing ring. One side of the second strap 7 is fixedly connected to a second hook and loop fastener 6 and a first hook and loop fastener 5. One side of the first hook and loop fastener 5 is bonded to the second hook and loop fastener 6. One side of the first strap 4 and the second strap 7 are both fixedly connected to an airbag cushion 2 and an airbag cushion 3. One side of the airbag cushion 2 and the airbag cushion 3 is fixedly connected to an anti-slip strip 12. The airbag cushion 2 and the airbag cushion 3 are fixedly connected to each other, and one side of the airbag cushion 2 is fixedly connected to an inflation tube 11.

[0026] The fixing ring at the end of the first strap 4 facilitates the connection between the first strap 4 and the second strap 7. The Velcro 5 and the second Velcro 6 facilitate the control of the tightness of the hemostat when it is worn against the skin. The inflation tube 11 facilitates the adjustment of the air pressure inside the first airbag 2 and the second airbag 3, so that the anti-slip strip 12 on one side of the first airbag 2 and the second airbag 3 can fit against the patient's skin, reducing the displacement and sliding of the hemostat during use and ensuring the stable use of the hemostat.

[0027] The usage and working principle of this device are as follows: First, install the two arc-shaped blocks 13 on both sides of the fixed plate 14. Insert the limiting pin 15 between the connecting strip 18 and the fixed plate 14. Then, engage the hemostatic plate 16 at the bottom of the fixed plate 14. When using the entire hemostatic device, move the hemostatic plate 16 above the affected area. Pass the end of the second bandage 7 through the fixing ring at one end of the first bandage 4, and then bend it to make the Velcro 5 adhere to the second Velcro 6, thus achieving the wearing of the entire device. After wearing, rotate the threaded rod 8, and the arc-shaped blocks 13 and the fixed plate 14 move down synchronously. The pressure sensor 19 on one side of the arc-shaped block 13 detects the pressure and sends the pressure data to the inside of the hemostatic device body 1. In the PLC processor, the data is processed and displayed on the display screen 10. Then, the height of the fixed plate 14 can be adjusted according to the pressure data to change the pressure applied to the affected area by the hemostatic plate 16. After adjustment, the timing module inside the hemostatic device body 1 starts timing, and the time information is also displayed on the display screen 10. When the predetermined time is reached, a reminder is given by the buzzer 20. The sealing plug at the end of the inflation tube 11 is opened, and the air pump is used to inflate the airbag pad 1 2 and airbag pad 2 3 through the inflation tube 11, so that the anti-slip strip 12 on one side of the airbag pad 1 2 and airbag pad 2 3 fits against the skin of the affected area, reducing the slippage of the entire device during use.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An emergency hemostatic device, comprising a hemostatic device body (1), characterized in that: An adjustment mechanism is provided on one side of the hemostat body (1). The adjustment mechanism includes a threaded rod (8), an arc-shaped block (13), and a fixed plate (14). The threaded rod (8) is threadedly connected to the hemostat body (1). One end of the threaded rod (8) is fixedly connected to the fixed plate (14). A hemostat plate (16) is engaged at the bottom of the fixed plate (14). A guide groove is provided at the bottom of the fixed plate (14). A guide strip (17) is slidably connected in the guide groove. One side is fixedly connected to the arc block (13), and a connecting strip (18) is fixedly connected between the two arc blocks (13). A limit pin (15) is inserted between the connecting strip (18) and the fixed plate (14). A pressure sensor (19) is embedded on one side of the arc block (13). The pressure sensor (19) is electrically connected to the display screen (10). A sealing cover (9) is fixedly connected to one side of the display screen (10). The sealing cover (9) is fixedly connected to the hemostat body (1).

2. The emergency hemostatic device according to claim 1, characterized in that: The threaded rod (8) is connected to the sealing cover (9) by a thread, and a buzzer (20) is fixedly connected to one side of the sealing cover (9).

3. The emergency hemostatic device according to claim 2, characterized in that: The buzzer (20) is electrically connected to a timing module, which is electrically connected to the display screen 10. The timing module is installed inside the hemostat body (1).

4. The emergency hemostatic device according to claim 1, characterized in that: The hemostat body (1) is rotatably connected to two sides by a first strap (4) and a second strap (7), and a fixing ring is fixedly connected to one end of the first strap (4).

5. The emergency hemostatic device according to claim 4, characterized in that: One side of the second strap (7) is fixedly connected to the second hook and loop fastener (6) and the first hook and loop fastener (5), and one side of the first hook and loop fastener (5) is bonded to the second hook and loop fastener (6).

6. The emergency hemostatic device according to claim 5, characterized in that: One side of each of the first strap (4) and the second strap (7) is fixedly connected to an airbag cushion (2) and an airbag cushion (3), and one side of each of the airbag cushion (2) and the airbag cushion (3) is fixedly connected to an anti-slip strip (12).

7. The emergency hemostatic device according to claim 6, characterized in that: The first airbag (2) and the second airbag (3) are fixedly connected, and an inflation tube (11) is fixedly connected to one side of the first airbag (2).