Radial artery hemostat

Abstract

The utility model provides a radial artery hemostat, and relates to the technical field of medical instruments. The radial artery hemostat comprises a bandage, a first end and a second end, wherein the bandage is provided with a first end and a second end which are opposite; the at least one positioning hole is formed in the first end of the bandage; the at least one positioning pin is arranged at the second end of the bandage and is used for being matched with the positioning hole in an inserting manner; the compression pad is arranged between the first end and the second end of the bandage; the air passing structure is arranged on the compression pad, and the air passing structure is used for inflating and / or deflating the compression pad; the air passing structure of the compression pad has better sealing performance, and air leakage of the compression pad in the using process can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, in particular to a radial artery hemostat. BACKGROUND

[0002] The radial artery is one of the terminal branches of the brachial artery and is slightly smaller than the ulnar artery. The radial artery is about 21 cm long, and the outer diameter of the starting end is about 0.3 cm. After the brachial artery branches out, it runs outward and downward, first between the brachioradialis muscle and the pronator quadratus muscle, then between the flexor carpi radialis muscle and the brachioradialis muscle, and then obliquely across the extensor hallucis longus muscle and the extensor hallucis brevis muscle tendon deep surface to the back of the hand, through the first metacarpal space into the deep part of the palm, and after the main artery of the thumb branches out, it is anastomosed with the deep palmar branch of the ulnar artery to form the deep palmar arch. The radial artery is located shallowly between the lower end of the radius and the flexor carpi radialis tendon, which is the ideal site for palpation and puncture.

[0003] With the increasing application of radial artery puncture technology, postoperative hemostasis of the radial artery puncture site is increasingly valued. Transradial interventional therapy is becoming more and more popular, and the hemostatic technology of the radial artery puncture site has developed in recent years. If the artificial finger pressure and bandaging method is used, the pressure needs to be applied according to experience, and if the pressure is too small, bleeding is easy to occur; if the pressure is too large, blood flow is easy to be blocked, and the pressure is not easy to keep stable during the implementation process, resulting in failure of hemostasis, increasing the risk of complications of the operation and the pain of the patient. Therefore, it is necessary to provide a radial artery compression hemostasis device with mechanical pressure.

[0004] The existing technology for radial artery compression hemostasis is mainly a balloon compression type. The balloon compression type radial artery compression hemostasis device needs to be provided with an air passage for inflation and / or deflation. Although the pressure and pressure relief of the balloon compression type radial artery compression hemostasis device are easier to control, the position of the air passage is prone to air leakage, resulting in changes and instability of the air bag pressure.

[0005] Therefore, it is necessary for those skilled in the art to provide a radial artery hemostat with good airtightness and stable pressure. UTILITY MODEL CONTENT

[0006] One of the problems solved by the utility model is to provide a radial artery hemostat with good airtightness and stable pressure.

[0007] To solve at least one of the above problems, the utility model provides a radial artery hemostat, the radial artery hemostat includes: bandage, bandage has opposite first end and second end, at least one's positioning hole, positioning hole is located in the first end of bandage, at least one's positioning pin, at least one's positioning pin is located in the second end of bandage, and is used for with the plug-in cooperation of positioning hole, compression pad, compression pad is located between the first end and the second end of bandage, air passing structure, air passing structure is located on compression pad, air passing structure is used for the inflation and / or deflation of compression pad, wherein, air passing structure includes rotatable knob, the sector baffle that is located on the knob, the base plate that is embedded in compression pad, the air passing hole that passes through base plate, and the sealing pad that is located on the one side of sector baffle facing air passing hole, one end of air passing hole stretches into the inner chamber of compression pad, and the other end stretches into the space that the knob, sector baffle and base plate surround and limit, the knob is driven sector baffle and sealing pad to rotate by rotating, to make sealing pad shelter or avoid air passing hole.

[0008] In any of the above technical solutions, the knob has an annular structure, the sector baffle is embedded in the inner wall of the annular structure, and the angular arc of the sector baffle is 180° to 270°.

[0009] In any of the above technical solutions, the positioning hole includes a first positioning hole and a second positioning hole arranged at intervals; the positioning pin includes a first positioning pin and a second positioning pin arranged at intervals; and the distance between the first positioning hole and the second positioning hole is equal to the distance between the first positioning pin and the second positioning pin.

[0010] In any of the above technical solutions, the air passing structure further includes: a ring sleeve, the ring sleeve is sleeved on the circumference of the base plate, and the air passing hole is located in the ring sleeve; wherein, the outer peripheral side wall of the ring sleeve is provided with a ring sleeve outer thread, the inner peripheral side wall of the knob is provided with a knob inner thread matched with the ring sleeve outer thread, so that the knob and the ring sleeve are rotationally connected.

[0011] In any of the above technical solutions, the air passing structure further includes: a telescopic connecting portion, the telescopic connecting portion is located in the space surrounded and limited by the knob, the sector baffle and the base plate; wherein, one end of the telescopic connecting portion is connected with the sector baffle, the other end is connected with the base plate, the telescopic connecting portion is arranged along the rotation axis of the knob, and can be telescopic.

[0012] In any of the above technical solutions, the telescopic connecting portion includes: a sleeve, the sleeve is connected with the sector baffle and has a sleeve inner thread; a connecting rod, the connecting rod is connected with the base plate, and has a connecting rod outer thread matched with the sleeve inner thread; wherein, at least part of the connecting rod extends into the inner cavity of the sleeve.

[0013] In any of the above technical solutions, the telescopic connecting portion further includes: a head portion, the head portion is connected with the connecting rod and located in the inner cavity of the sleeve; wherein, the head portion is used to limit the connecting rod from being pulled out of the sleeve.

[0014] In any of the above technical solutions, one end of the air passage hole extending into the inner cavity of the compression pad is connected with an elastic sealing part, the elastic sealing part can shield the air passage hole in a natural state and can avoid the air passage hole under the action of external force.

[0015] In any of the above technical solutions, the radial artery hemostat further comprises an indication arrow arranged on the compression pad and used for indicating the rotating direction of the knob.

[0016] In any of the above technical solutions, the radial artery hemostat further comprises a fixing ring arranged at the second end of the bandage and used for allowing the first end of the bandage to pass through.

[0017] Advantages

[0018] The radial artery hemostat provided by the embodiment of the utility model comprises a bandage, at least one positioning hole, at least one positioning pin, a compression pad and an air passage structure. The bandage has opposite first and second ends, the positioning hole is arranged at the first end of the bandage, and the positioning pin is arranged at the second end of the bandage and is used for being inserted into the positioning hole to make the bandage form a ring from a strip shape. The compression pad is arranged between the first and second ends of the bandage. The air passage structure is arranged on the compression pad and is used for inflating and / or deflating the compression pad. The air passage structure comprises a rotatable knob, a sector-shaped baffle arranged on the knob, a base plate embedded in the compression pad, an air passage hole penetrating through the base plate and a sealing gasket arranged on one side of the sector-shaped baffle facing the air passage hole. One end of the air passage hole extends into the inner cavity of the compression pad, and the other end extends into the space surrounded by the knob, the sector-shaped baffle and the base plate. Since the knob is connected with the sector-shaped baffle, when the knob rotates, the sector-shaped baffle can rotate coaxially. When the sector-shaped baffle rotates to a first position, the sector-shaped baffle shields the air passage hole, and the sealing gasket covers the air passage hole to seal the air passage hole. When the sector-shaped baffle rotates to a second position, the air passage hole is exposed, and the sealing gasket avoids the air passage hole to make the air passage hole inflate or deflate. Therefore, the air passage structure has better sealing performance and can avoid the compression pad from leaking air during use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view (top view direction) of the inside of the radial artery hemostat (close to the human body side) of the embodiment of the utility model;

[0020] Figure 2 It is a structure schematic view (top view direction) of the outside of the radial artery hemostat (far away from the human body side) of the embodiment of the utility model;

[0021] Figure 3 It is a structure schematic view (side view direction) of the radial artery hemostat in the inflation state of the compression pad of the embodiment of the utility model;

[0022] Figure 4Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0023] Figure 5 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0024] Figure 6 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0025] Figure 7 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0026] Figure 8 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0027] Figure 9 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0028] Figure 10 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model;

[0029] Figure 11 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model; Figure 7 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model.

[0030] Figure 12 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model. Figure 9 Positioning diagram of the fan-shaped baffle of the radial artery hemostat in a closed state according to an embodiment of the present utility model.

[0031] Reference signs:

[0032] Binding belt-100; positioning hole-200; first positioning hole-201; second positioning hole-202; third positioning hole-203; fourth positioning hole-204; fifth positioning hole-205; sixth positioning hole-206; positioning pin-300; first positioning pin-301; second positioning pin-302; compression pad-400; air passing structure-500; knob-501; knob inner thread-501a; fan-shaped baffle-502; base plate-503; air passing hole-504; elastic sealing part-504a; sealing pad-505; ring sleeve-506; ring sleeve outer thread-506a; telescopic connecting part-510; sleeve-511; sleeve inner thread-511a; connecting rod-512; connecting rod outer thread-512a; head-513; indicating arrow-600; air needle-700. DETAILED DESCRIPTION

[0033] In order to make the above object, features and advantages of the present application more obvious and easy to understand, the following will make a detailed description of the specific embodiments of the present application.

[0034] Unless otherwise specified, the reagents and raw materials used in the present application can be purchased through commercial channels. The experimental methods in the following examples without specific conditions are selected according to conventional methods and conditions, or according to the product instructions.

[0035] As shown in Figures 1 to 3 The radial artery hemostat provided by the embodiment of the present application. The radial artery hemostat comprises a bandage 100, at least one positioning hole 200, at least one positioning pin 300, a compression pad 400, and an air passing structure 500.

[0036] As shown in Figures 1 to 3 The bandage 100 is in the form of a strip as a whole and has opposite first and second ends. The positioning hole 200 is arranged at the first end of the bandage 100, and the positioning pin 300 is arranged at the second end of the bandage 100. The positioning hole 200 and the positioning pin 300 are inserted and matched to form a ring shape from the strip shape of the bandage 100.

[0037] As shown in Figures 1 to 3 Optionally, the positioning hole 200 comprises a first positioning hole 201 and a second positioning hole 202 arranged at intervals; the positioning pin 300 comprises a first positioning pin 301 and a second positioning pin 302 arranged at intervals; the distance between the first positioning hole 201 and the second positioning hole 202 is equal to the distance between the first positioning pin 301 and the second positioning pin 302.

[0038] Further optionally, the positioning hole 200 further comprises a third positioning hole 203, a fourth positioning hole 204, a fifth positioning hole 205, and a sixth positioning hole 206 arranged at intervals. More positioning holes can facilitate flexible adjustment of the enclosed diameter of the bandage 100 to adapt to different patients.

[0039] Further optionally, the radial artery hemostat further comprises a fixing ring 800 arranged at the second end of the bandage 100 and used for the first end of the bandage 100 to pass through. The fixing ring 800 can facilitate stable connection between the first end and the second end.

[0040] As shown in Figures 1 to 3 The compression pad 400 is arranged between the first end and the second end of the bandage 100, and the compression pad 400 is specifically an air bag. The radial artery hemostat is pressurized by inflation of the air bag, and the radial artery hemostat is depressurized by deflation of the air bag.

[0041] As shown in Figure 2As shown, the air passing structure 500 is arranged on the compression pad 400, and is used for inflating and / or deflating the compression pad 400. In other words, the air passing structure 500 serves as an air inlet, and is used for embedding an air source device (not shown in the figure) so that the air source device inflates the compression pad 400; the air passing structure 500 serves as an air outlet, and is used for deflating the compression pad 400. In this case, if the air passing structure 500 only serves as an air inlet, an air outlet needs to be additionally arranged on the compression pad 400; if the air passing structure 500 only serves as an air outlet, an air inlet needs to be additionally arranged on the compression pad 400; or the air passing structure 500 can be integrated with the functions of the air inlet and the air outlet.

[0042] For example, when the air passing structure 500 is integrated with the functions of the air inlet and the air outlet, the air needle 700 can be inserted into the air passing structure 500 during inflation, and the air source device is communicated with the air needle 700 to inflate; during deflation, the air needle 700 is no longer communicated with the air source device, and the air needle 700 is only inserted into the air passing structure 500 to press the compression pad 400, so that the deflation is realized.

[0043] In addition to being used for inflation and / or deflation, the air passing structure 500 is also used for ensuring that the compression pad 400 is kept sealed during the process of inflation and / or deflation, so as to avoid air leakage.

[0044] Specifically, the air passing structure 500 includes a rotatable knob 501, a sector-shaped baffle 502 arranged on the knob 501, a base plate 503 embedded in the compression pad 400, an air passing hole 504 penetrating through the base plate 503, and a sealing gasket 505 arranged on a side of the sector-shaped baffle 502 facing the air passing hole 504. The air passing hole 504 is used for air flow, and one end of the air passing hole 504 extends into the inner cavity of the compression pad 400, and the other end of the air passing hole 504 extends into the space surrounded by the knob 501, the sector-shaped baffle 502 and the base plate 503. The knob 501 can drive the sector-shaped baffle 502 and the sealing gasket 505 to rotate by rotating, so that the sealing gasket 505 blocks or avoids the air passing hole 504.

[0045] The knob 501 and the sector-shaped baffle 502 are connected as a whole. The base plate 503 is preferably made of plastic. The air passing hole 504 is embedded in the base plate 503 by one-piece forming. The knob 501 has a ring structure, the sector-shaped baffle 502 is embedded in the inner wall of the ring structure, and the angular radian of the sector-shaped baffle 502 is 180° to 270°. Since the knob 501 and the sector-shaped baffle 502 are connected, the knob 501 can coaxially rotate when the knob 501 rotates. As shown in Figure 4 When the sector-shaped baffle 502 is rotated to the first position, the sector-shaped baffle 502 blocks the air passing hole 504, and the sealing gasket 505 covers the air passing hole 504, so as to seal the air passing hole 504. Figure 5As shown, the fan-shaped baffle 502 exposes the air vent 504 when rotated to the second position, and the sealing gasket 505 avoids the air vent 504 so that the air vent 504 can be inflated or deflated. Figure 4 and Figure 5 As shown, the radial artery hemostat further comprises an indication arrow 600 arranged on the compression pad 400 and used for indicating the rotating direction of the knob 501.

[0046] Optionally, the air vent 504 is a circular hole, and the sealing gasket 505 is a circular-tapec rubber pad. The size of the sealing gasket 505 is matched with the size of the air vent 504. For example, the size of the sealing gasket 505 is consistent with the size of the air vent 504, or the size of the sealing gasket 505 is slightly larger than the size of the air vent 504, which can ensure that the air vent 504 does not leak when the sealing gasket covers the air vent 504.

[0047] It can be understood that there is a gap between the air vent 504 and the fan-shaped baffle 502 for the sealing gasket 505 to pass through. The thickness of the gap can be equal to the thickness of the sealing gasket 505. Alternatively, the thickness of the sealing gasket 505 can be set to be slightly larger than the thickness of the gap, and the sealing gasket 505 is elastic and can still enter and fill the gap between the air vent 504 and the fan-shaped baffle 502 when rotating, and the sealing effect is better.

[0048] Although the sealing gasket 505 can achieve sealing of the air vent 504, the utility model embodiment can additionally provide other sealing elements to ensure the sealing effect. Optionally, as shown in Figures 6 to 9 The end of the air vent 504 extending into the inner cavity of the compression pad 400 is connected with an elastic blocking part 504a, and the elastic blocking part 504a is a rubber pad which can block the air vent 504 in a natural state and avoid the air vent 504 under the action of external force.

[0049] In order to realize the rotation of the knob 501, the air vent structure 500 further comprises a ring sleeve 506 sleeved on the periphery of the base plate 503, and the air vent 504 is located in the ring sleeve 506. As shown in Figure 10 The outer peripheral side wall of the ring sleeve 506 is provided with a ring sleeve outer thread 506a, and the inner peripheral side wall of the knob 501 is provided with a knob inner thread 501a matched with the ring sleeve outer thread 506a, so that the knob 501 and the ring sleeve 506 are rotationally connected.

[0050] In order to avoid the mutual disengagement between the knob 501 and the ring sleeve 506, the air vent structure 500 further comprises a telescopic connecting part 510 arranged in the space surrounded by the knob 501, the fan-shaped baffle 502 and the base plate 503. One end of the telescopic connecting part 510 is connected with the fan-shaped baffle 502, and the other end is connected with the base plate 503. The telescopic connecting part 510 is arranged along the rotation axis of the knob 501 and can be telescopic.

[0051] Specifically, as shown in Figure 11 and Figure 12 , the telescopic connecting part 510 comprises a sleeve 511 connected with the sector baffle 502 and having a sleeve inner thread 511a, and a connecting rod 512 connected with the base plate 503 and having a connecting rod outer thread 512a matched with the sleeve inner thread 511a, wherein at least part of the connecting rod 512 extends into the inner cavity of the sleeve 511. Thus, rotating the knob 501 can make the sleeve 511 rotate around the connecting rod 512 threaded with the sleeve 511, and the knob 501 rotate around the ring sleeve 506 threaded with the knob 501. The telescopic connecting part 510 further comprises a head 513 connected with the connecting rod 512 and arranged in the inner cavity of the sleeve 511, wherein the head 513 is used to limit the connecting rod 512 from being pulled out of the sleeve 511.

[0052] The radial artery hemostat according to the embodiment of the present application is used as follows. As shown in Figure 6 , in the normal sealed state (for example, before inflation or in the use state after inflation), the knob 501 is rotated to the first position along the ring sleeve 506 threaded with the knob 501, in which state, the sealing gasket 505 is pressed against the upper end opening of the air passage hole 504, the elastic blocking part 504a at the lower end of the air passage hole 504 is in the natural state, and the lower end opening of the air passage hole 504 is shielded. As shown in Figure 7 , before inflation or deflation, the knob 501 is rotated to the second position along the ring sleeve 506 threaded with the knob 501, in which state, the sealing gasket 505 avoids the upper end opening of the air passage hole 504, the elastic blocking part 504a at the lower end of the air passage hole 504 is still in the natural state, and the lower end opening of the air passage hole 504 is shielded. As shown in Figure 11 , at this time, the sleeve 511 and the connecting rod 512 are relatively stretched. As shown in Figure 8 , during inflation, the air needle 700 is inserted into the air passage hole 504 in the direction of the arrow, in which state, the elastic blocking part 504a at the lower end of the air passage hole 504 is subjected to the external force of the air needle 700, so that a gap appears at the lower end opening of the air passage hole 504, and the air supply device connected with the air needle 700 supplies air. During deflation, the same applies, except that the air needle 700 is no longer connected with the air supply device, and the compression pad 400 is deflated. As shown in Figure 9 , after inflation or deflation is completed, the knob 501 is rotated back to the first position along the ring sleeve 506 threaded with the knob 501, so that the sealing is re-established. As shown in Figure 12 , at this time, the sleeve 511 and the connecting rod 512 are relatively contracted.

[0053] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be limited to the range defined by the claims.

Claims

1. A radial artery hemostat, characterized in that: The radial artery hemostat comprises: a binding strap (100), the binding strap (100) having opposing first and second ends; at least one positioning hole (200), the positioning hole (200) being provided at a first end of the binding strap (100); at least one positioning pin (300), the at least one positioning pin (300) being provided at the second end of the binding strap (100) and being used for plugging and cooperating with the positioning hole (200); a compression pad (400), the compression pad (400) being disposed between the first end and the second end of the binding strap (100); an air passage structure (500), the air passage structure (500) being provided on the compression pad (400), the air passage structure (500) being used for inflating and / or deflating the compression pad (400); The air passage structure (500) includes a rotatable knob (501), a fan-shaped baffle (502) provided on the knob (501), a substrate (503) embedded in the pressure pad (400), an air passage (504) passing through the substrate (503), and a sealing gasket (505) provided on the side of the fan-shaped baffle (502) facing the air passage (504); one end of the air passage (504) extends into the inner cavity of the pressure pad (400), and the other end extends into the space surrounded and defined by the knob (501), the fan-shaped baffle (502) and the substrate (503); the knob (501) drives the fan-shaped baffle (502) and the sealing gasket (505) to rotate by rotating, so that the sealing gasket (505) blocks or avoids the air passage (504).

2. The radial artery hemostat according to claim 1, characterized in that: The knob (501) has an annular structure, the sector-shaped baffle (502) is embedded in the inner wall of the annular structure, and the angular arc of the sector-shaped baffle (502) is 180° to 270°.

3. The radial artery hemostat according to claim 1, characterized in that: The positioning hole (200) includes a first positioning hole (201) and a second positioning hole (202) that are spaced apart; the positioning pin (300) includes a first positioning pin (301) and a second positioning pin (302) that are spaced apart; the distance between the first positioning hole (201) and the second positioning hole (202) is equal to the distance between the first positioning pin (301) and the second positioning pin (302).

4. The radial artery hemostat according to any one of claims 1 to 3, characterized in that: The gas-permeable structure (500) further includes: A ring sleeve (506), wherein the ring sleeve (506) is sleeved on the periphery of the substrate (503), and the air hole (504) is located in the ring sleeve (506); The outer side wall of the ring sleeve (506) is provided with a ring sleeve external thread (506a), and the inner side wall of the knob (501) is provided with a knob internal thread (501a) that cooperates with the ring sleeve external thread (506a), so that the knob (501) and the ring sleeve (506) are rotatably connected.

5. The radial artery hemostat according to claim 4, characterized in that: The gas-permeable structure (500) further includes: a telescopic connection portion (510), the telescopic connection portion (510) being arranged in a space defined by the knob (501), the sector baffle (502) and the base plate (503); One end of the telescopic connection part (510) is connected to the fan-shaped baffle (502), and the other end is connected to the base plate (503). The telescopic connection part (510) is arranged along the rotation axis of the knob (501) and can be telescopic.

6. The radial artery hemostat according to claim 5, characterized in that: The telescopic connection portion (510) comprises: a sleeve (511), the sleeve (511) being connected to the sector baffle (502) and having an internal sleeve thread (511a); A connecting rod (512), the connecting rod (512) being connected to the base plate (503), and the connecting rod (512) having an external connecting rod thread (512a) that matches the internal sleeve thread (511a); Wherein, at least a portion of the connecting rod (512) extends into the inner cavity of the sleeve (511).

7. The radial artery hemostat according to claim 6, characterized in that: The telescopic connection portion (510) further comprises: a head (513), the head (513) being connected to the connecting rod (512) and disposed in the inner cavity of the sleeve (511); The head (513) is used to prevent the connecting rod (512) from falling out of the sleeve (511).

8. The radial artery hemostat according to any one of claims 1 to 3, characterized in that: One end of the air hole (504) extending into the inner cavity of the compression pad (400) is connected to an elastic sealing portion (504a), and the elastic sealing portion (504a) can block the air hole (504) in a natural state and can avoid the air hole (504) under the action of external force.

9. The radial artery hemostat according to any one of claims 1 to 3, characterized in that: The radial artery hemostat further comprises: An indicating arrow (600) is provided on the compression pad (400) and is used to indicate the rotation direction of the knob (501).

10. The radial artery hemostat according to any one of claims 1 to 3, characterized in that: The radial artery hemostat further comprises: A fixing ring (800) is provided at the second end of the binding belt (100) and is used for allowing the first end of the binding belt (100) to pass through.

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