Radial artery hemostat

Abstract

The utility model discloses a radial artery hemostat, comprising a fixed block and a hemostatic dressing, a fixing groove is downwardly provided on one side of the upper end of the fixed block, a binding band is provided on the other side of the outer wall of the fixed block, a through hole is downwardly provided on the upper end of the fixed block, a shell is provided on the upper end of the fixed block, a sliding sheet is slidably connected to the left and right sides of the inner wall of the shell, a positioning rod is provided at the lower end of the sliding sheet, a pressing sheet is provided at the lower end of the positioning rod, an air bag is provided at the upper end of the sliding sheet in the shell, an air inlet pipe is provided on one side of the outer wall of the shell, a one-way valve is rotatably connected to the front end opening of the air inlet pipe, a sliding rod is slidably connected to the upper end of the outer wall of the shell, a limit plate is provided at the lower end of the sliding rod, and a reset spring is provided at the upper end of the limit plate. When the utility model stops bleeding on the radial artery of a patient, it can not only effectively stop bleeding on the wound of the radial artery of the patient, but also reduce the pressure on the wound of the patient as the hemostasis time increases during the hemostasis process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a radial artery hemostat. Background Art

[0002] Radial artery puncture is a common clinical procedure used to obtain arterial blood samples or perform therapeutic procedures such as arterial catheterization. Although this is a routine operation, there is still a certain risk of complications. For example, subcutaneous hematoma around the puncture site and in the forearm is common in radial artery injury caused by repeated punctures; improper compression of the puncture site, etc.; the radial artery hemostat is a tool used for local pressure hemostasis, mainly used for local compression hemostasis through the radial artery puncture site. Insufficient pressure of the radial artery hemostat will cause local bleeding, and excessive pressure will cause cyanosis or even pallor of the upper limb extremities, limb numbness, pain and other ischemic manifestations.

[0003] However, the existing radial artery hemostat applies pressure to stop bleeding by rotating the threaded rod after being fixed. Although this method can effectively stop bleeding by compression, it cannot automatically adjust the hemostatic pressure according to the time of compression during the hemostasis process. Therefore, it will cause a more obvious dent at the location of the patient's wound after the hemostasis is completed. The wound in the dent will tear the wound during the patient's activities and recovery process, causing bleeding again, affecting the hemostatic effect. Utility Model Content

[0004] The utility model aims to provide a radial artery hemostat, which can not only effectively stop bleeding at the radial artery wound of the patient, but also reduce the pressure on the wound of the patient as the hemostasis time increases during the hemostasis process, thereby avoiding dents on the wound of the patient and thus affecting the hemostasis effect.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A radial artery hemostat, comprising a fixing block and a hemostatic dressing, wherein a fixing groove is downwardly provided on one side of the upper end of the fixing block, a binding band passing through the fixing groove is provided on the other side of the outer wall of the fixing block, a through hole is downwardly provided on the upper end of the fixing block, a shell with an opening at the lower end and connected to the through hole is provided on the upper end of the fixing block, and slide grooves are provided on the lower sides of the left and right sides of the inner wall of the shell, and a slide plate sliding along the length direction thereof is slidably connected between the two slide grooves, a positioning rod extending from the lower end of the through hole is provided at the lower end of the slide plate, a pressing sheet is provided at the lower end of the positioning rod, and the hemostatic dressing is provided at the lower end of the pressing sheet and is detachably connected thereto;

[0007] The cam is provided with an air bag which is elastic and can be deformed at the upper end of the sliding piece in the shell, and an air inlet pipe which extends into the interior and is connected with the air bag is provided on one side of the outer wall of the shell, and the front end opening of the air inlet pipe is rotatably connected with a one-way valve which extends to the rear end opening and is connected with the air inlet pipe, and the edge of the one-way valve which extends to the rear end of the air inlet pipe is provided with a sealing ring which cooperates with the one-way valve, and a first micro-air hole is upwardly provided on one side passing through the sealing ring, and a second micro-air hole which cooperates with the first micro-air hole is provided on one side passing through the outer wall of the air inlet pipe, and a sliding hole is downwardly provided on the upper end of the outer wall of the shell, and the sliding hole is slidably connected with a sliding rod which can slide up and down and extend into the shell, and a limiting plate is provided on one end of the sliding rod which extends into the shell, and a return spring which is sleeved on the sliding rod is provided between the upper end of the limiting plate and the upper end of the inner wall of the shell.

[0008] By adopting the above technical solution, when in use, first place the fixing block on the wound position of the patient's radial artery, let the hemostatic dressing be located at the wound position, and then pass the strap through the fixing groove to fix the fixing block and the patient's arm. When fixing, the pressing plate will contact the patient's arm and push the slide plate to slide upward along the slide groove through the positioning rod. The medical staff uses the inflation component to connect with the one-way valve, and then rotates the one-way valve to make the first micro air hole and the second micro air hole misaligned and blocks the second micro air hole through the sealing ring. Then the medical staff presses the shell to remove the vascular sheath from the patient's radial artery, and the hemostatic dressing stops bleeding at the wound. At the same time, the medical staff inflates the airbag through the inflation component, and the gas enters the airbag through the air inlet pipe and expands it.

[0009] During this process, the airbag will compress the return spring through the limit plate to make the slide bar slide upward, and the airbag will squeeze the slide plate to make it slide downward so that the pressing plate and hemostatic dressing are close to the patient's wound and exert pressure on it. After a period of time, the medical staff observes the hemostasis state and then turns the one-way valve to connect the first micro-air hole with the second micro-air hole. At this time, the gas in the airbag will be slowly released. While the volume of the airbag decreases, the return spring will gradually rebound, so that the limit plate is always in contact with the airbag and the airbag exerts pressure on the slide plate. During the slow pressure release process, the pressing plate will gradually reduce the pressure on the patient's wound to avoid the formation of dents. Finally, the medical staff can also know the amount of gas in the airbag by the change in the position height of the slide bar.

[0010] The utility model is further configured as follows: a compression block is arranged on one side of the lower end of the compression sheet, and the hemostatic dressing is arranged on one side of the compression block.

[0011] By adopting the above technical solution, the compression block is located at the proximal end of the patient's radial artery to compress it, thereby reducing the amount of bleeding from the radial artery and improving the hemostasis effect.

[0012] The utility model is further configured as follows: a hook-surface Velcro is disposed at a free end of the outer wall of the binding strap, and a velvet-surface Velcro is disposed on the outer wall of the binding strap to match the hook-surface Velcro.

[0013] The utility model is further configured as follows: the outer wall of the slide rod is provided with indicating scales along its length direction.

[0014] By adopting the above technical solution, medical personnel can intuitively know the amount of gas in the airbag during inflation and deflation.

[0015] The utility model is further configured as follows: the outer wall of the air inlet pipe is recessed downwardly to form a groove at the position of the second micro-air hole, a spring sheet is provided on one side of the lower end of the outer wall of the one-way valve at the position of the first micro-air hole, and a limiting protrusion cooperating with the groove is provided at the bottom of the spring sheet away from one end of the one-way valve.

[0016] By adopting the above technical solution, not only can medical staff quickly align the first micro air hole with the second micro air hole, but also the one-way valve can be restricted from rotating thereafter to avoid affecting the exhaust.

[0017] In summary, the utility model has the following beneficial effects:

[0018] First, when the present invention stops bleeding on the radial artery of a patient, it can not only effectively stop bleeding on the wound of the radial artery of the patient, but also reduce the pressure on the wound of the patient as the hemostasis time increases during the hemostasis process, thereby avoiding causing dents on the wound of the patient and thus affecting the hemostasis effect;

[0019] Secondly, when the utility model stops bleeding on the radial artery of the patient, the airbag can not only apply pressure to the slide to increase the hemostatic effect, but also will not form rigid pressure when performing compression hemostasis, causing discomfort to the patient;

[0020] Thirdly, the compression block of the utility model is convenient for compressing the proximal end of the radial artery of the patient during hemostasis, thereby reducing the amount of bleeding of the radial artery and improving the hemostasis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is mainly used to show the position and connection relationship of each component;

[0023] Figure 3 It is mainly used to show the position and connection relationship between the air intake pipe and the air bag;

[0024] Figure 4 It is mainly used to display the first micro air hole and the second micro air hole.

[0025] In the figure: 1. fixing block; 11. fixing groove; 12. binding strap; 13. hook-surface Velcro; 14. velvet Velcro; 15. through hole; 16. shell; 17. slide groove; 18. slide plate; 19. positioning rod; 2. pressing plate; 21. compression block; 22. hemostatic dressing; 23. air bag; 24. air inlet pipe; 25. one-way valve; 26. sealing ring; 27. first micro air hole; 28. second micro air hole; 29. ​​groove; 3. spring; 31. limiting protrusion; 32. slide hole; 33. slide rod; 34. limiting plate; 35. reset spring; 36. indicator scale. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example, see Figure 1-4A radial artery hemostat comprises a fixing block 1 and a hemostatic dressing 22. A fixing groove 11 is downwardly provided on one side of the upper end of the fixing block 1, a strap 12 passing through the fixing groove 11 is arranged on the other side of the outer wall of the fixing block 1, a hook-surface Velcro 13 is arranged on the free end of the outer wall of the strap 12, a velvet Velcro 14 cooperating with the hook-surface Velcro 13 is arranged on the outer wall of the strap 12, a through hole 15 is downwardly provided on the upper end of the fixing block 1, a shell 16 with an opening at the lower end and connected to the through hole 15 is arranged on the upper end of the fixing block 1, a slide groove 17 is relatively recessed inwardly at the lower left and right sides of the inner wall of the shell 16, a slide plate 18 sliding along its length direction is slidably connected between the two slide grooves 17, a positioning rod 19 extending from the lower end of the through hole 15 is arranged at the lower end of the slide plate 18, and a pressing sheet 2 is arranged at the lower end of the positioning rod 19.

[0031] A compression block 21 is provided on one side of the lower end of the pressing sheet 2, a hemostatic dressing 22 is provided on the lower end of the pressing sheet 2 and is detachably connected thereto, an elastic and deformable air bag 23 is provided on the upper end of the sliding sheet 18 in the shell 16, an air inlet pipe 24 extending into the interior thereof and communicating with the air bag 23 is provided on one side of the outer wall of the shell 16, a front end opening of the air inlet pipe 24 is rotatably connected to a one-way valve 25 extending to the rear end opening thereof and communicating therewith, a sealing ring 26 matching therewith is provided on the edge of the one-way valve 25 extending to the rear end of the air inlet pipe 24, a first micro air hole 27 is upwardly provided on one side penetrating the sealing ring 26, and a second micro air hole 28 matching the first micro air hole 27 is provided on one side penetrating the outer wall of the air inlet pipe 24.

[0032] The outer wall of the air inlet pipe 24 is recessed downward at the position of the second micro-air hole 28 and is provided with a groove 29. A spring piece 3 is provided on one side of the lower end of the outer wall of the one-way valve 25 at the position of the first micro-air hole 27. A limiting protrusion 31 that cooperates with the groove 29 and limits the rotation of the one-way valve 25 is provided at the bottom of the spring piece 3 away from the end of the one-way valve 25. A sliding hole 32 is opened downward at the upper end of the outer wall of the shell 16. The sliding hole 32 is slidably connected to a sliding rod 33 that can slide up and down and extend into the shell 16. The outer wall of the sliding rod 33 is provided with an indicating scale 36 along its length direction. A limiting piece 34 is provided at the end of the sliding rod 33 extending into the shell 16. A return spring 35 that is sleeved on the sliding rod 33 is provided between the upper end of the limiting piece 34 and the upper end of the inner wall of the shell 16.

[0033] How to use: When using, first place the fixing block 1 on the wound of the patient's radial artery, let the hemostatic dressing 22 be located at the wound, let the compression block 21 be located at the proximal end of the patient's radial artery, then pass the strap 12 through the fixing groove 11 to fix the fixing block 1 and the patient's arm, then stick the hook Velcro 13 on the velvet Velcro 14 to fix the fixing block 1. When fixing, the pressing piece 2 will contact the patient's arm and push the sliding piece 18 to slide upward along the sliding groove 17 through the positioning rod 19, and the compression block 21 will compress the radial artery to slow down blood flow and bleeding at the wound.

[0034] The medical staff uses the inflation component to connect with the one-way valve 25, then rotates the one-way valve 25 to misalign the first micro-air hole 27 and the second micro-air hole 28 and blocks the second micro-air hole 28 through the sealing ring 26. Then the medical staff presses the shell 16 to remove the vascular sheath from the patient's radial artery, and the hemostatic dressing 22 stops bleeding at the wound. At the same time, the medical staff inflates the airbag 23 through the inflation component, and the gas enters the airbag 23 through the air inlet pipe 24 and expands it. During this process, the airbag 23 will compress the return spring 35 through the limit plate 34 to allow the slide rod 33 to slide upward in the slide hole 32. At this time, the medical staff can know the amount of inflation in the airbag 23 through the indicating scale 36. The airbag 23 will squeeze the slide plate 18 to make it slide downward and allow the positioning rod 19 to extend out of the lower end of the through hole 15 to allow the pressing sheet 2 and the hemostatic dressing 22 to fit closely against the patient's wound and compress it.

[0035] After a period of time, the medical staff observes the hemostasis state of the patient's wound, and then rotates the one-way valve 25 to allow the spring 3 to be located at the position of the groove 29 and the limiting protrusion 31 to engage with the groove 29, so that the first micro-air hole 27 is connected to the second micro-air hole 28 and limits the rotation of the one-way valve 25. At this time, the gas in the airbag 23 will be slowly released. While the volume of the airbag 23 is reduced, the return spring 35 will gradually rebound, so that the limiting piece 34 is always in contact with the airbag 23 and the airbag 23 applies pressure to the slide 18. In the process of slow pressure release, the pressing sheet 2 will gradually reduce the pressure on the patient's wound to avoid the formation of deeper dents. Finally, the medical staff can also know the amount of gas in the airbag 23 by the change in the position height of the slide bar 33 and the indicator scale 36.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A radial artery hemostat, comprising a fixing block (1) and a hemostatic dressing (22), characterized in that: A fixing groove (11) is provided downwardly through one side of the upper end of the fixing block (1), a binding band (12) passing through the fixing groove (11) is provided on the other side of the outer wall of the fixing block (1), a through hole (15) is provided downwardly through the upper end of the fixing block (1), a shell (16) with an open lower end and connected to the through hole (15) is provided at the upper end of the fixing block (1), sliding grooves (17) are provided at the lower sides of the inner wall of the shell (16) and are relatively concave inwardly, a slide plate (18) sliding along the length direction thereof is slidably connected between the two slide grooves (17), a positioning rod (19) extending out of the lower end of the through hole (15) is provided at the lower end of the positioning rod (19), a pressing plate (2) is provided at the lower end of the positioning rod (19), and the hemostatic dressing (22) is provided at the lower end of the pressing plate (2) and is detachably connected thereto; An elastic and deformable airbag (23) is arranged at the upper end of the slide (18) in the shell (16), an air intake pipe (24) extending into the interior and communicating with the airbag (23) is arranged on one side of the outer wall of the shell (16), a front end opening of the air intake pipe (24) is rotatably connected to a one-way valve (25) extending to the rear end opening and communicating with the air intake pipe (24), an edge of the one-way valve (25) extending to the rear end of the air intake pipe (24) is provided with a sealing ring (26) cooperating therewith, and a first micro air hole (27) is opened upward through one side of the sealing ring (26), and a first micro air hole (27) is provided through the one side of the sealing ring (26). A second micro-air hole (28) cooperating with the first micro-air hole (27) is provided on one side of the outer wall of the air inlet pipe (24), and a sliding hole (32) is provided downwardly through the upper end of the outer wall of the shell (16). The sliding hole (32) is slidably connected to a sliding rod (33) that can slide up and down and extend into the shell (16). A limiting plate (34) is provided at one end of the sliding rod (33) extending into the shell (16), and a return spring (35) sleeved on the sliding rod (33) is provided between the upper end of the limiting plate (34) and the upper end of the inner wall of the shell (16).

2. A radial artery hemostat according to claim 1, characterized in that: A compression block (21) is provided on one side of the lower end of the compression sheet (2), and the hemostatic dressing (22) is provided on one side of the compression block (21).

3. A radial artery hemostat according to claim 1, characterized in that: The free end of the outer wall of the binding strap (12) is provided with a hook-surface Velcro (13), and the outer wall of the binding strap (12) is provided with a velvet-surface Velcro (14) that cooperates with the hook-surface Velcro (13).

4. A radial artery hemostat according to claim 1, characterized in that: The outer wall of the sliding rod (33) is provided with indicating scales (36) along its length direction.

5. The radial artery hemostat according to claim 1, characterized in that: The outer wall of the air inlet pipe (24) is recessed downward at the position of the second micro-air hole (28) and is provided with a groove (29); a spring sheet (3) is provided on one side of the lower end of the outer wall of the one-way valve (25) at the position of the first micro-air hole (27); and a limiting protrusion (31) cooperating with the groove (29) is provided at the bottom of the end of the spring sheet (3) away from the one-way valve (25).

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