Compression mechanism of radial artery hemostat and radial artery hemostat

Abstract

The utility model provides a compression mechanism of a radial artery hemostat and the radial artery hemostat comprising the compression mechanism. The compression mechanism comprises a fixing plate, a nut and a screw. At least two convex parts are arranged on the upper surface of the fixing plate, an arc-shaped groove is formed in the inner side of each convex part, and the arc-shaped grooves are concentric; a protrusion is arranged on the outer side of the lower portion of the nut, and the protrusion of the nut can be embedded in the arc-shaped groove and enables the nut to rotate in the arc-shaped groove. The fixing plate is provided with a first through hole between the two convex parts; the screw rod penetrates through the lower part of the first through hole and extends into the nut to be in threaded connection with the nut; a compression plate is arranged at the bottom of the screw rod; the radial artery hemostat further comprises a buckle and a bandage, one end of the bandage is connected with one end of the fixing plate, and the other end of the bandage is connected with the buckle. The end, away from the bandage, of the buckle is connected with the other end of the fixing plate.

Description

Technical Field

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

[0002] Transradial artery puncture is a commonly used puncture route for interventional surgery in clinical practice. To prevent radial artery bleeding after surgery, the radial artery needs to be compressed to stop bleeding. The traditional method initially used elastic bandages to apply pressure to stop bleeding. First, a cylindrical gauze is placed along the radial artery at the puncture site and pressure is applied at the same time. Gauze and elastic bandages are applied on it, and then relaxed regularly according to actual conditions. The effect of using a bandage to stop bleeding is good, and the material is also convenient to obtain and affordable. However, the operation is relatively complicated and time-consuming. When stopping bleeding, it is easy to compress the vein at the same time, causing obstruction of blood flow, swelling of the patient's limb on the surgical side, and poor tolerance. With the development of disease diagnosis and treatment technology, radial artery-specific hemostat is becoming more and more common in clinical practice.

[0003] There are two types of radial artery hemostat currently used in clinical practice: airbag type and non-airbag type, both of which can effectively achieve the effect of compression hemostasis. However, due to the structural design, the two types of hemostat have the problem of inconvenient disassembly and assembly of each component. Therefore, the utility model proposes a compression mechanism for radial artery hemostat and a radial artery hemostat including the compression mechanism to solve the above-mentioned clinical problems. Utility Model Content

[0004] In view of the problem that the components of the existing radial artery hemostat are inconvenient to disassemble and assemble, the utility model provides a compression mechanism for a radial artery hemostat and a radial artery hemostat including the compression mechanism. The specific scheme is as follows:

[0005] The compression mechanism of the radial artery hemostat is characterized in that it includes a fixing plate, a nut and a screw; the upper surface of the fixing plate is provided with at least two protrusions, a notch is formed between the protrusions, and an arc-shaped groove is provided inside each protrusion, and the arc-shaped grooves are concentric; a protrusion is provided on the outer side of the lower part of the nut, and the protrusion of the nut can be embedded in the arc-shaped groove and the nut can rotate therein; the fixing plate is provided with a first through hole between the two protrusions; the screw passes through the lower part of the first through hole and extends into the nut to be connected with the thread of the nut; a compression plate is provided at the bottom of the screw. With the above technical solution, the nut can be embedded in the groove of the protrusion and detachably connected to the protrusion, the assembly between the accessories is faster, and the connection between the components is more secure. The notch is formed between the protrusions, so that there is deformation space during the insertion and removal of the nut, which is convenient for disassembly and installation while extending its service life.

[0006] As a further improvement of the compression mechanism of the utility model, the convex part is integrally formed with the fixing plate, and the distance from the inner side to the outer side of the bottom surface of the convex part is greater than the distance from the inner side to the outer side of the top surface. The above technical solution makes the connection between the convex part and the fixing plate more firm, and also makes the convex part less likely to be damaged during the process of inserting and removing the nut.

[0007] As a further improvement of the compression mechanism of the utility model, the compression plate is sleeved with a silicone pad, and both the compression plate and the silicone pad are circular. The above technical solution makes the part of the compression plate in contact with the human body elastic, which is more conducive to hemostasis, and the circular design is more suitable for the human body.

[0008] As a further improvement of the compression mechanism of the utility model, the fixing plate, the screw rod, the compression plate and the silicone pad are all made of transparent materials. The above technical solution is adopted to facilitate a clearer observation of the bleeding situation.

[0009] The utility model further provides a radial artery hemostat including the above compression mechanism, the radial artery hemostat also includes a buckle and a strap; one end of the strap is connected to one end of the fixing plate, and the other end is connected to the buckle; the end of the buckle away from the strap is connected to the other end of the fixing plate. The above technical solution is adopted to facilitate the disassembly and installation of the various components of the radial artery hemostat.

[0010] As a further improvement of the radial artery hemostat described in the utility model, one end of the fixing plate is provided with a second through hole, and the other end is provided with a hook; both ends of the bandage are provided with Velcro, and one end of the bandage can pass through the second through hole and be connected to the second through hole through the Velcro; the hook can hook the buckle, and the tightness of the bandage can be adjusted by the Velcro. By adopting the above technical solution, before wearing, the two ends of the bandage can be respectively passed through the second through hole of the fixing plate and the through hole at one end of the buckle, and one end of the fixing plate and one end of the buckle are connected by Velcro; when wearing, only the end of the buckle away from the bandage needs to be buckled on the hook at the other end of the fixing plate, and then the tightness of the bandage can be adjusted by the Velcro; in this way, there is no need to wear the bandage when wearing, making wearing more convenient and quicker.

[0011] As a further improvement of the radial artery hemostat of the utility model, the radial artery hemostat also includes a fixing pad, which is arranged side by side with the compression plate on the lower side of the fixing plate. By adopting the above technical solution, the fixing pad can play a role of pre-positioning and support, avoiding contact between the fixing plate and the wrist, and preventing compression of other blood vessels.

[0012] As a further improvement of the radial artery hemostat of the utility model, the screw has at least one third through hole formed by an indentation on the outer surface of one side. By adopting the above technical solution, the bleeding situation can be better observed.

[0013] As a further improvement of the radial artery hemostat of the utility model, there are two third through holes, which are symmetrically distributed on both sides of the screw. By adopting the above technical solution, the screw and the nut have a higher matching degree, better fastening, and are not easy to slide; the bleeding situation can also be observed through the observation holes on both sides of the screw.

[0014] As a further improvement of the radial artery hemostat of the utility model, flanges extending in opposite directions and contacting the inner concave surface of the screw are symmetrically distributed on the inner side of the first through hole. By adopting the above technical solution, the connection between the screw and the nut is more tightly connected, the strength of the fixing plate is higher, and it is convenient for observation and the nut can be further limited in its movement direction during the insertion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the compression mechanism of the radial artery hemostat of the utility model;

[0016] Figure 2 It is an upper oblique view of a fixing plate of the compression mechanism of the radial artery hemostat of the utility model;

[0017] Figure 3 for Figure 2 A cross-sectional view of the middle fixing plate along the AA direction;

[0018] Figure 4 A three-dimensional diagram of a nut of a compression mechanism of the radial artery hemostat of the utility model;

[0019] Figure 5 A three-dimensional diagram of a screw rod of a compression mechanism of a radial artery hemostat of the utility model;

[0020] Figure 6 A top view of a screw rod of a compression mechanism of a radial artery hemostat of the utility model;

[0021] Figure 7 It is a cross-sectional view of the cooperation between the fixing plate and the nut of the compression mechanism of the radial artery hemostat of the utility model;

[0022] Figure 8 It is a top view of the compression mechanism fixing plate and the nut of the radial artery hemostat of the utility model;

[0023] Fig. 9 This is a front view of the radial artery hemostat of the utility model without the silicone pad on the pressure plate;

[0024] Fig.10 This is a front view of the radial artery hemostat pressure plate sleeved with a silicone pad of the utility model;

[0025] Fig.11 It is a top view of the radial artery hemostat assembly of the utility model;

[0026] Fig.12 It is a stereoscopic diagram of the radial artery hemostat assembly of the utility model.

[0027] In the figure: 1. fixing plate; 2. nut; 3. screw; 4. convex part; 5. compression plate; 6. fixing pad; 7. buckle; 8. strap; 9. first through hole; 10. arc-shaped groove; 11. protrusion; 12. third through hole; 13. flange; 14. notch; 15. second through hole; 16. hook; 17. Velcro; 18. silicone pad; 41. bottom surface; 42. top surface. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be further described below through implementation modes with reference to the accompanying drawings. It should be noted that the following implementation modes are used to help understand the present invention, but do not constitute a limitation of the present invention.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "lower part", "lower side", "bottom", "upper surface", "lower surface", "vertical", "horizontal", "top", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations shown in the drawings or the orientations of objects in use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0031] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like 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 or an electrical connection; it can be a direct connection, or it can be 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 this application can be understood according to specific circumstances.

[0032] like Figures 1 to 4 As shown, the compression mechanism of the radial artery hemostat includes a fixing plate 1, a nut 2, a screw rod 3 and a compression plate 5. Figure 2 and Figure 3As shown, the upper surface of the fixing plate 1 is provided with at least two protrusions 4. In this embodiment, there are two protrusions, and two notches 14 are formed between the two protrusions 4. Of course, the number of protrusions is not limited to two, and in other embodiments, it can be greater than two; the inner side of each protrusion 4 is provided with an arc groove 10, and the arc groove 10 is concentric. Figure 4 As shown, a protrusion 11 is provided on the outer side of the lower part of the nut 2; Figure 7 As shown, the protrusion 11 of the nut 2 can be embedded in the arc-shaped groove 10 and the nut 2 can be rotated therein. Through the above arrangement, the protrusion 11 of the nut 2 can be embedded in the groove 10 of the convex part 4 to form a detachable connection with the convex part 4. Notches 14 are formed between the convex parts 4, so that the nut 2 has deformation space during the insertion and removal process, which facilitates the disassembly and installation of the nut 2 while extending its service life. The assembly between the accessories is faster and the connection between the components is more secure.

[0033] like Figure 2 As shown, the fixing plate 1 is provided with a first through hole 9 between the two protrusions 4; Figure 5 and 6 As shown, a compression plate 5 is provided at the bottom of the screw rod 3; the screw rod 3 passes through the lower part of the first through hole 9 and extends into the nut 2 to be threadedly connected with the nut 2. Through the above arrangement, the nut 2 can only rotate in the circumferential direction in the convex part 4, and there will be no vertical displacement. The screw rod 3 passes through the lower part of the first through hole set between the two convex parts 4 on the fixing plate 1. The nut 2 and the screw rod 3 are threadedly matched. By rotating the nut 2, the screw rod 3 can move up and down in the nut 2, thereby causing the compression plate 5 to move up and down to compress and stop bleeding.

[0034] like Figure 3 As shown, the protrusion 4 is integrally formed with the fixing plate 1, and the distance from the inner side to the outer side of the bottom surface 41 of the protrusion 4 is greater than the distance from the inner side to the outer side of the top surface 42. Through the above arrangement, the protrusion 4 is integrally formed with the fixing plate 1, which facilitates the assembly and disassembly of various components, and at the same time makes the connection between the protrusion 4 and the fixing plate 1 more firmly, and also makes the protrusion 4 not easily damaged during the insertion and removal of the nut 2.

[0035] Combination Figure 5 , 6 , 9 and 10, the shape of the compression plate 5 is circular. In order to allow the compression plate to have elastic space when pressed and to be more conducive to hemostasis, a silicone pad 18 is sleeved on the compression plate 5. The silicone pad 18 is also circular. The circular design fits the human body better and is more stable when pressed and is not easy to move.

[0036] In order to observe the bleeding situation of the bleeding point more clearly, the fixing plate 1, the screw rod 3, the compression plate 5 and the silicone pad 18 are all made of transparent materials.

[0037] like Figures 9 to 12As shown, the utility model also provides a radial artery hemostat, which includes the above-mentioned compression mechanism, and also includes a buckle 7 and a strap 8; one end of the strap 8 is connected to one end of the fixing plate 1, and the other end is connected to the buckle 7; the end of the buckle 7 away from the strap 8 is connected to the other end of the fixing plate 1.

[0038] In this embodiment, there are perforations at both ends of the buckle 7, one end of the fixing plate 1 is provided with a second through hole 15, and the other end is provided with a hook 16; both ends of the strap 8 are provided with Velcro 17, one end of the strap 8 can pass through the second through hole 15 and be connected to the second through hole 15 through the Velcro 17; the other end of the strap 8 passes through the perforation at one end of the buckle 7 and is connected to one end of the buckle 7 through the Velcro 17; the perforation of the buckle 7 away from the end of the strap 8 can be buckled on the hook 16 at the other end of the fixing plate 1, the hook 16 can hook the buckle 7, and the tightness of the strap 8 can be adjusted through the Velcro 17. Through the above arrangement, before the patient wears the radial artery hemostat, the two ends of the bandage 8 can be respectively passed through the second through hole 15 of the fixing plate 1 and the through hole of one end of the buckle 7, and one end of the fixing plate 1 and one end of the buckle 7 can be connected by the Velcro 17; when wearing, it is only necessary to buckle the end of the buckle 7 away from the bandage 8 on the hook 16 at the other end of the fixing plate 1, and then adjust the tightness of the bandage 8 by the Velcro 17; in this way, there is no need to wear a bandage when wearing, making wearing more convenient and quicker.

[0039] like Fig. 9 and Fig.10 As shown, the radial artery hemostat further includes a fixing pad 6, which is arranged in parallel with the compression plate 5 on the lower side of the fixing plate 1. In this embodiment, the fixing pad is arranged between the second through hole 15 of the fixing plate 1 and the compression plate 5, and the fixing pad can play a role of pre-positioning and supporting, avoiding the fixing plate from contacting the wrist and preventing compression of other blood vessels.

[0040] Combination Figure 6 and Fig.11 , the screw 3 has at least one side of the outer surface concave to form a third through hole 12. In this embodiment, there are two third through holes 12, which are respectively opened on both sides of the screw 3 along the axial symmetry. The outer surfaces on both sides of the screw 3 are concave to form two half-moon-shaped third through holes 12. The two third through holes 12 can be used as observation holes to observe bleeding. Through the above arrangement, the matching degree between the screw 3 and the nut 2 is higher, the fastening is better, and it is not easy to slide; the bleeding situation can also be observed through the observation holes on both sides of the screw 3. Of course, the shape of the third through hole 12 is not limited to a half-moon shape, it can be other shapes, and the number of the third through holes 12 can also be greater than two.

[0041] Combination Figure 8 and Fig.11, flanges 13 extending in opposite directions and contacting the inner concave surface of the screw rod 3 are symmetrically distributed on the inner side of the first through hole 9. By setting the flanges 13, the screw rod 3 is more tightly connected to the nut 2, the strength of the fixing plate 1 is higher, and it is convenient to observe the bleeding situation, and the nut 2 can be further limited in its movement direction during the insertion process.

[0042] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, equivalent changes, improvements and modifications made without departing from the principle of the present invention are all within the protection scope of the present invention.

Claims

1. A compression mechanism of a radial artery hemostat, characterized in that: The invention comprises a fixing plate (1), a nut (2) and a screw (3); the fixing plate (1) is provided with at least two protrusions (4) on its upper surface, a notch (14) is formed between the protrusions (4), an arc-shaped groove (10) is provided on the inner side of each protrusion (4), and the arc-shaped grooves (10) are concentric; a protrusion (11) is provided on the outer side of the lower part of the nut (2), and the protrusion (11) of the nut (2) can be embedded in the arc-shaped groove (10) so that the nut (2) can rotate therein; the fixing plate (1) is provided with a first through hole (9) between the two protrusions (4); the screw (3) passes through the lower part of the first through hole (9) and extends into the nut (2) to be threadedly connected with the nut (2); a pressing plate (5) is provided at the bottom of the screw (3).

2. The compression mechanism of the radial artery hemostat according to claim 1, characterized in that: The convex portion (4) and the fixing plate (1) are integrally formed, and the distance from the inner side to the outer side of the bottom surface (41) of the convex portion (4) is greater than the distance from the inner side to the outer side of the top surface (42).

3. The compression mechanism of the radial artery hemostat according to claim 2, characterized in that: The compression plate (5) is sleeved with a silicone pad (18), and both the compression plate (5) and the silicone pad (18) are circular.

4. The compression mechanism of the radial artery hemostat according to claim 3, characterized in that: The fixing plate (1), the screw rod (3), the compression plate (5) and the silicone pad (18) are all made of transparent material.

5. Radial artery hemostat, characterized in that: It comprises the compression mechanism according to any one of claims 1 to 4, and further comprises a buckle (7) and a strap (8); one end of the strap (8) is connected to one end of the fixing plate (1), and the other end is connected to the buckle (7); the end of the buckle (7) away from the strap (8) is connected to the other end of the fixing plate (1).

6. The radial artery hemostat according to claim 5, characterized in that: One end of the fixing plate (1) is provided with a second through hole (15), and the other end is provided with a hook portion (16); both ends of the binding strap (8) are provided with hooks (17); one end of the binding strap (8) can pass through the second through hole (15) and be connected to the second through hole (15) via the hook (17); the hook portion (16) can hook onto the buckle (7), and the binding strap (8) can be adjusted in tightness via the hook (17).

7. The radial artery hemostat according to claim 6, characterized in that: It also comprises a fixing pad (6), wherein the fixing pad (6) and the compression plate (5) are arranged in parallel on the lower side of the fixing plate (1).

8. The radial artery hemostat according to claim 7, characterized in that: The screw rod (3) has at least one side of the outer surface thereof formed by a third through hole (12) which is concave.

9. The radial artery hemostat according to claim 8, characterized in that: There are two third through holes (12), which are symmetrically distributed on both sides of the screw rod (3).

10. The radial artery hemostat according to claim 9, characterized in that: Flanges (13) are symmetrically distributed on the inner side of the first through hole (9) and extend in opposite directions and abut against the inner concave surface of the screw rod (3).

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