An auxiliary tool for preventing thrombosis of upper limbs
By designing an upper limb thrombosis prevention tool that includes an elastic bandage, an airbag, and a servo motor, the problem of thrombosis caused by the inability to exercise independently after upper limb catheterization was solved. This tool promotes blood circulation and functional exercise in the upper limb, thus improving the recovery of critically ill comatose patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN FIRST PEOPLES HOSPITAL
- Filing Date
- 2025-03-17
- Publication Date
- 2026-07-14
Smart Images

Figure CN224484440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thrombosis prevention technology, specifically an auxiliary tool for preventing upper limb thrombosis. Background Technology
[0002] A thrombus is a small mass that forms on the surface of a blood vessel in the cardiovascular system at a site of rupture or repair. In variable fluid-dependent thrombi, thrombi consist of insoluble fibrin, deposited platelets, accumulated white blood cells, and trapped red blood cells. Hospitalized patients are prone to venous thrombosis, which is common in the lower extremities. Although thrombosis is less common in the upper extremities, it can still occur, especially in postoperative patients with malignant tumors. Therefore, thrombosis prevention devices are needed.
[0003] Chinese Patent Publication No. CN113208889A, authorized on August 6, 2021, discloses an exercise device for preventing upper limb deep vein thrombosis, belonging to the field of medical assistive device technology. It includes a glove with a double-layered structure, forming an air chamber between the two layers; the air chamber is connected to the glove's air tube; an arm sleeve with a double-layered structure, containing an arm sleeve air tube; an air pump connected to the glove and arm sleeve air tubes; and air release valves, including a glove air release valve and an arm sleeve air release valve. The glove air release valve is located on the glove and communicates with the air chamber; the arm sleeve air release valve is located on the arm sleeve and communicates with the arm sleeve air tube. This exercise device is primarily designed for patients lacking independent upper limb exercise ability and with long-term PICC line insertion. The raised dots inside the glove effectively massage acupoints on the hand, and the spiral arrangement of the arm sleeve air tubes allows blood to flow sequentially from the hand to the forearm, upper arm, and superior vena cava, promoting blood return and preventing thrombosis. The support structure elevates the hand and forearm above the heart, improving edema and further promoting blood circulation.
[0004] Currently, the most commonly used assistive devices for preventing thrombosis in the lower extremities are those for the upper extremities. There are fewer assistive devices for preventing thrombosis after catheterization in the upper extremities. For critically ill comatose patients with PICC catheters, who cannot perform independent functional exercises, long-term indwelling venous catheters are prone to thrombosis, affecting subsequent physical recovery and failing to meet the needs of use. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary tool for preventing upper limb thrombosis, in order to address the problem mentioned in the background art that existing clinical auxiliary tools for preventing thrombosis are more commonly used for lower limbs, while there are fewer auxiliary tools for preventing thrombosis after upper limb catheterization. For critically ill comatose patients with PICC catheters, who cannot perform independent functional exercises, long-term indwelling venous catheters are prone to thrombosis, affecting subsequent physical recovery, and thus cannot meet the needs of use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tool for preventing upper limb thrombosis, comprising a base and a booster pump. An elastic band is provided above the base, and both ends of the elastic band are fixedly connected to the base. A first airbag is provided inside the elastic band, and the first airbag is integrated with the elastic band. A rubber plate is provided above the base, and the rubber plate is located on one side of the elastic band. A finger sleeve is provided above the rubber plate, and the finger sleeve is fixedly connected to the rubber plate. A finger hole is provided inside the finger hole, and a second airbag is provided inside the finger hole, and the second airbag is integrated with the finger sleeve. An air guide tube is provided between the booster pump and the first and second airbags, and the air guide tube is integrated with the booster pump and the first and second airbags. A control panel and a power cord are provided at one end of the base, and the control panel and the power cord are integrated with the base.
[0007] Preferably, a sponge board is provided at the upper end of the base, and the sponge board is attached to the base. The sponge board is located below the elastic strap, and one end of the rubber board is provided with a slope.
[0008] Preferably, the upper end of the rubber sheet is provided with five grooves, which are arranged side by side at the upper end of the rubber sheet. The grooves are arc-shaped and correspond to the finger holes.
[0009] Preferably, a servo motor is installed inside the base, and the servo motor is connected to the base by screws. The output end of the servo motor is connected to the center of the lower end of the rubber plate.
[0010] Preferably, the lower end of the rubber sheet is provided with a rolling groove, and the rolling groove is circular. The upper end of the base is provided with balls, at least four of which are arranged in a circular and equidistant manner at the upper end of the base. One end of each ball extends into the interior of the rolling groove, and the ball is in rolling connection with the base and the rubber sheet.
[0011] Preferably, the lower end of the base is provided with an anti-slip pad, and the anti-slip pad is in close contact with the base.
[0012] Preferably, each end of the base is provided with a hook and loop fastener and a hook and loop fastener, with two hook and loop fasteners, and one end of each hook and loop fastener is fixedly connected to the base.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model device uses an elastic strap, a first airbag, a booster pump, a finger sleeve, an air duct, and a second airbag. The elastic strap fixes the upper limb forearm, and the fingers are inserted into the finger sleeve for fixation. The booster pump injects air into the first and second airbags through the air duct. The air-injected first and second airbags inflate, and the inflated first and second airbags come into close contact with the upper limb and fingers. Then, the booster pump expels the air from the first and second airbags. This cycle is repeated to press the upper limb and fingers, promoting blood circulation in the upper limb forearm and palm. It can not only play a role in exercise but also prevent thrombosis.
[0015] 2. This utility model device uses a servo motor to drive a rubber plate to rotate, which in turn causes the fixed hand to rotate. By controlling the rotation angle and direction of the servo motor, hand bending exercises can be achieved.
[0016] 3. This utility model device uses hook and loop fasteners to connect the hook and loop fasteners around the bed frame, allowing the auxiliary tools to be fixed to the bed for use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 For the present utility model Figure 1 A magnified view of a portion of area A;
[0019] Figure 3 This is a diagram showing the connection relationship between the rubber sheet, the base, and the finger sleeve of this utility model;
[0020] Figure 4 For the present utility model Figure 3 A magnified view of a portion of area B.
[0021] In the diagram: 1. Base; 2. Anti-slip mat; 3. Control panel; 4. Velcro loop; 5. Velcro hook; 6. Power cord; 7. Elastic strap; 8. First airbag; 9. Booster pump; 10. Sponge board; 11. Finger cot; 12. Air duct; 13. Rubber plate; 14. Servo motor; 15. Finger hole; 16. Second airbag; 17. Ball bearing; 18. Groove; 19. Roller groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figure 1-4This utility model provides an embodiment of an auxiliary tool for preventing upper limb thrombosis, comprising a base 1 and a booster pump 9. An elastic band 7 is disposed above the base 1, and both ends of the elastic band 7 are fixedly connected to the base 1. A first airbag 8 is disposed inside the elastic band 7, and the first airbag 8 is integrally connected to the elastic band 7. A rubber plate 13 is disposed above the base 1, and the rubber plate 13 is disposed on one side of the elastic band 7. A finger sleeve 11 is disposed above the rubber plate 13. 1. The finger sleeve 11 is fixedly connected to the rubber plate 13. The inside of the finger sleeve 11 is provided with a finger hole 15. The inside of the finger hole 15 is provided with a second airbag 16. The second airbag 16 is connected to the finger sleeve 11 as a whole. The booster pump 9 is provided with an air guide tube 12 between the first airbag 8 and the second airbag 16. The air guide tube 12 is connected to the booster pump 9, the first airbag 8 and the second airbag 16 as a whole. One end of the base 1 is provided with a control panel 3 and a power cord 6. The control panel 3 and the power cord 6 are both connected to the base 1 as a whole.
[0024] In use: Pass the patient's upper limb through the elastic band 7 and insert it into the finger sleeve 11. The elastic band 7 fixes the upper limb forearm. Turn on the booster pump 9 to inject air into the first airbag 8 and the second airbag 16 through the air tube 12. The air-injected first airbag 8 and the second airbag 16 inflate. The inflated first airbag 8 and the second airbag 16 are in close contact with the upper limb and fingers. Then, the booster pump 9 expels the air from the first airbag 8 and the second airbag 16. Repeat this cycle to press the upper limb and fingers, promote blood circulation in the upper limb forearm and palm, which can not only play a role in exercise, but also play a role in preventing thrombosis.
[0025] Please see Figure 1 and Figure 3 A sponge board 10 is provided at the upper end of the base 1, and the sponge board 10 is attached to the base 1. The sponge board 10 is located below the elastic strap 7. One end of the rubber board 13 is provided with a slope, and the upper end of the rubber board 13 is provided with a groove 18. There are five grooves 18, and the grooves 18 are arranged side by side at the upper end of the rubber board 13. The grooves 18 are arc-shaped and correspond to the finger holes 15. The sponge board 10 plays a protective role in fixing the upper limb to the base 1. The grooves 18 position the fingers inserted into the finger sleeve 11 to prevent the fingers from being squeezed and misaligned due to force.
[0026] Please see Figure 3 and Figure 4The base 1 is equipped with a servo motor 14, which is connected to the base 1 by screws. The output end of the servo motor 14 is connected to the center of the lower end of the rubber plate 13. The lower end of the rubber plate 13 is provided with a rolling groove 19, which is circular. The upper end of the base 1 is provided with at least four balls 17, which are equidistantly arranged in a circular pattern on the upper end of the base 1. One end of each ball 17 extends into the interior of the rolling groove 19 and is in rolling connection with the base 1 and the rubber plate 13. When the servo motor 14 is turned on, it drives the rubber plate 13 to rotate. As the rubber plate 13 rotates, it drives the fixed palm to rotate. By controlling the rotation angle and direction of the servo motor 14, the palm can bend and exercised.
[0027] Please see Figure 1 The lower end of the base 1 is provided with an anti-slip pad 2, which is attached to the base 1. The two sides of the base 1 are respectively provided with hook and loop fasteners 4 and hook and loop fasteners 5. There are two hook and loop fasteners 4 and two hook and loop fasteners 5. One end of the hook and loop fasteners 4 and the hook and loop fasteners 5 is fixedly connected to the base 1. The anti-slip pad 2 increases the friction of the bottom of the base 1 and improves the stability of the tool. The hook and loop fasteners 4 and the hook and loop fasteners 5 are connected around the bed frame and can fix the auxiliary tool to the bed.
[0028] Working principle: The patient's upper limb is passed through the elastic strap 7 and inserted into the finger sleeve 11. The elastic strap 7 fixes the upper limb forearm. The booster pump 9 is turned on, and air is injected into the first airbag 8 and the second airbag 16 through the air tube 12. The air inflates the first airbag 8 and the second airbag 16, and the inflated first airbag 8 and the second airbag 16 are in close contact with the upper limb and fingers. Then, the booster pump 9 expels the air from the first airbag 8 and the second airbag 16. This cycle is repeated to press on the upper limb and fingers, promoting blood circulation in the upper limb forearm and palm, which can not only exercise but also prevent thrombosis. The servo motor 14 drives the rubber plate 13 to rotate. As the rubber plate 13 rotates, the fixed palm rotates. Controlling the rotation angle and direction of the servo motor 14 can realize the palm flexion exercise. The anti-slip mat 2 increases the friction of the bottom of the base 1 and improves the stability of the tool. The Velcro loop side 4 and the Velcro hook side 5 are connected around the bed frame to fix the auxiliary tool to the bed.
[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An assistive device for preventing upper limb thrombosis, comprising a base (1) and a booster pump (9), characterized in that: An elastic strap (7) is provided above the base (1), and both ends of the elastic strap (7) are fixedly connected to the base (1). A first airbag (8) is provided inside the elastic strap (7), and the first airbag (8) is connected to the elastic strap (7) as a whole. A rubber plate (13) is provided above the base (1), and the rubber plate (13) is located on one side of the elastic strap (7). A finger sleeve (11) is provided above the rubber plate (13), and the finger sleeve (11) is fixedly connected to the rubber plate (13). The inside of the finger sleeve (11) is provided with A finger hole (15) is provided, and a second airbag (16) is provided inside the finger hole (15). The second airbag (16) is connected to the finger sleeve (11) as a whole. An air guide tube (12) is provided between the booster pump (9), the first airbag (8), and the second airbag (16). The air guide tube (12) is connected to the booster pump (9), the first airbag (8), and the second airbag (16) as a whole. A control panel (3) and a power cord (6) are provided at one end of the base (1). The control panel (3) and the power cord (6) are connected to the base (1) as a whole.
2. The assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The upper end of the base (1) is provided with a sponge board (10), and the sponge board (10) is attached to the base (1). The sponge board (10) is located below the elastic strap (7), and one end of the rubber plate (13) is provided with a slope.
3. The assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The upper end of the rubber plate (13) is provided with a groove (18), there are five grooves (18), and the grooves (18) are arranged side by side at the upper end of the rubber plate (13). The grooves (18) are arc-shaped and correspond to the finger holes (15).
4. An assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The base (1) is equipped with a servo motor (14), and the servo motor (14) is connected to the base (1) by screws. The output end of the servo motor (14) is connected to the center of the lower end of the rubber plate (13).
5. An assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The lower end of the rubber plate (13) is provided with a rolling groove (19), and the rolling groove (19) is circular. The upper end of the base (1) is provided with a ball bearing (17), and there are at least four balls bearing (17). The balls bearing (17) are arranged in a circular and equidistant manner at the upper end of the base (1). One end of the ball bearing (17) extends into the interior of the rolling groove (19), and the ball bearing (17) is in rolling connection with the base (1) and the rubber plate (13).
6. An assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The lower end of the base (1) is provided with an anti-slip pad (2), and the anti-slip pad (2) is attached to the base (1).
7. An assistive tool for preventing upper limb thrombosis according to claim 1, characterized in that: The base (1) has two hook and loop fasteners (4) and two hook and loop fasteners (5) on each side. Each hook and loop fastener (4) and hook and loop fasteners (5) has two pieces, and one end of each hook and loop fastener (4) and hook and loop fasteners (5) is fixedly connected to the base (1).