Hand-imitating hemostatic clip

Abstract

The invention relates to a hand-imitating hemostatic clip which comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are movably connected, and a clamping area formed by the inner side of the first clamping piece and the inner side of the second clamping piece is used for being attached to the surface of a wrist. The inner side surface of the first clamping piece is provided with a pressing assembly used for pressing a bleeding point, and the inner side surface of the second clamping piece is provided with a movable supporting assembly. The compression assembly and the supporting assembly are matched to simulate a hand structure, supporting points on the second clamping piece are dispersed, symptoms such as extravasated blood on the back of the hand or the wrist cannot be caused, a three-dimensional stable compression supporting positioning space is formed, the whole hemostatic clip is stable and does not move when a patient uses the hemostatic clip, and the wearing experience of the patient is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a hand-imitation hemostatic clip. Background Art

[0002] Coronary angiography is currently the standard for diagnosing coronary heart disease, and radial artery puncture is the preferred route for percutaneous coronary intervention. While interventional surgery achieves good application results, it is often accompanied by complications such as postoperative bleeding, hematoma at the puncture site, radial artery occlusion, and pressure injury. It is important to pay attention to the compression hemostasis effect after puncture, and hemostasis and pressure dressing must be implemented in place, otherwise it will affect the patient's postoperative recovery and increase the workload of medical staff. Therefore, exploring more effective hemostatic measures is of great significance for patients undergoing interventional surgery. After observing and analyzing the mechanical structure of the hand, doctors found that the human hand has a natural convenience for pressing the radial artery to stop bleeding. At present, the biggest problem with pressing the radial artery to stop bleeding is that it is difficult to overcome fatigue and persist in stable pressing for several hours. Therefore, a variety of styles of hemostatic clips or tourniquets are generally designed on the market.

[0003] The application announcement number is CN113171151A, which discloses a radial artery hemostatic compression band assembly with pressure indicator. Combined with its specification and drawings, the scheme is to align the center point of the elastic body with the puncture point, and pass the fixing band around the limb and through the hook connected to the fixing plate, tighten and buckle it, adjust the tightening force of the fixing band according to the patient's body shape, use Velcro to fix it, twist the rotating cap, and as the rotating cap rotates, the spiral rod drives the elastic body to continuously press down on the patient's puncture point, the elastic body presses the radial artery puncture point, and the indicator ring moves inside the rotating cap to indicate the pressure scale and display the pressure value. Medical staff rotate the rotating cap clockwise or counterclockwise according to the pressure scale indication. To adjust the compression force, however, this solution has defects. The threads of the spiral rod are easy to loosen automatically during use, causing bleeding; the buckle as the supporting part is tightly wrapped around most of the area on the opposite side of the pressing part, compressing the venous network on the back of the hand, causing the patient's local blood flow to be poor and causing swelling and discomfort; when the puncture point is low, the fixing belt of the hemostat compresses the side of the ulnar styloid process or on the styloid process, which will increase the patient's local swelling and pain and reduce the patient's comfort and satisfaction; when used for a long time and under high pressure, it often causes pain, swelling, numbness, pressure injury and other problems on the puncture side of the patient's hand, causing the patient to refuse to continue using it, thereby affecting the hemostasis and treatment effects. Summary of the invention

[0004] The present invention mainly aims at the problems existing in the use of the above-mentioned radial artery hemostat, and invents a hand-imitation hemostatic clamp, which uses the binding of a fixed hook to provide clamping force, and adjusts the size of the pressing position force through an air bag and a pressure indicator. Medical staff adjust the pressing force according to individual differences of patients and wound recovery conditions; the hemostatic clamp imitates the structure of the hand, and the supporting columns on the through groove are dispersed, resulting in the dispersion of supporting points, so that the venous network will not be blocked over a large area, and symptoms such as congestion will not be caused; each supporting column on the second clamping piece can also move appropriately left and right along the track of the through groove to prevent the support column from being in contact with the wrist for too long due to the force applied, thereby causing congestion.

[0005] The inventive objective of the present invention is achieved through the following technical solutions: a hand-like hemostatic clamp, comprising a first clamping member and a second clamping member, the first clamping member and the second clamping member are movably connected, the inner side of the first clamping member and the inner side of the second clamping member form a clamping area for fitting to the surface of the wrist, the inner surface of the first clamping member is provided with a compression component for compressing the bleeding point, and the inner surface of the second clamping member is provided with a movable support component.

[0006] Preferably, a shaft support column is provided at one end of the first clamping member, and a plurality of support bosses are extended outward at one end of the second clamping member. A column shaft is provided on the surface of each support boss, and the column shaft can be rotatably inserted into the interior of the shaft support column. This arrangement is to realize the hinge connection between the first clamping member and the second clamping member.

[0007] Preferably, the other ends of the first clamp and the second clamp are each provided with a fixed hook, and an external rope is tied to the fixed hook so that one end of the first clamp and the second clamp is clamped. This arrangement is to enable the external rope to fix the right ends of the first clamp and the second clamp.

[0008] Preferably, the compression assembly includes a pressing shell, a supporting shell, an airbag, an inflation pipeline and an inflation valve. The outer surface of the first clamp is provided with a mounting groove, the interior of the mounting groove is provided with a pressing shell, an airbag is placed between the pressing shell and the supporting shell, the pressing shell moves with the change of the airbag, the supporting shell is fixedly connected to the mounting groove, one end of the airbag is connected to the inflation pipeline, the end of the inflation pipeline is connected to the inflation valve, the end of the inflation valve is provided with a pressure relief device, and the surface of the inflation pipeline is also provided with a pressure indicator gauge for displaying the pressure value. This arrangement is for accurately adjusting the pressure of the airbag.

[0009] Preferably, the first clamping member and the second clamping member are arc-shaped, and the pressing shell, the supporting shell and the airbag are made of transparent material.

[0010] Preferably, the support assembly includes a plurality of support columns, a plurality of through grooves are provided on the surface of the second clamping member, a plurality of support columns are slidably connected inside each of the through grooves, and adjacent support columns do not interfere with each other. This arrangement is to enable the support columns to adjust their position relative to the wrist or the back of the hand to prevent bruising due to prolonged force application.

[0011] Preferably, a column boss is provided at the end of the support column, and the column boss is inserted into the interior of the through groove. The cross-sectional area of ​​the support column is larger than the cross-sectional area of ​​the column boss. The support column faces the inner side of the second clamping member, and the column boss faces the outer side of the second clamping member. This arrangement is to enable the support column to slide inside the through groove.

[0012] Preferably, the surfaces between the several supporting columns inside the same through groove form a supporting plane, and the clamping area is formed between the several supporting planes and the pressing shell, and the clamping area makes the hemostatic clip stable and does not move.

[0013] Preferably, the support column is made of soft plastic material, and this setting is to reduce the pressure effect of the surface of the support column on the wrist and optimize the comfort of the patient when wearing it.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. It utilizes the binding of fixed hooks to provide clamping force, and adjusts the magnitude of the pressing position force through the airbag and the pressure indicator. Medical staff adjust the magnitude of the pressing force according to individual differences of patients and the recovery of wounds. Since the pressing force is visualized and adjustable, it will not cause pressure damage to the pressing point, and can accurately press the part that needs hemostasis without causing fatigue due to long pressing time, making it safe and convenient for patients to use; 2. The hemostatic clamp imitates the structure of the hand. The bottom of the pressing shell on the first clamping piece is equivalent to the thumb pressing the hemostatic opening, and the four through grooves are equivalent to the four knuckles of the fingers. The surfaces of the 12 movable support columns inside the through grooves are equivalent to the support points of the fingers fitting to the wrists. Multiple dispersed support columns make the external force on each support point on the back of the hand only one twelfth of the pressing force. The pressure of the supporting points on the surface of the support column can be lower than the venous blood pressure, thereby greatly reducing the probability of the vein being blocked by external force. Since the support columns on the through groove are dispersed, the supporting points are dispersed, so the venous network will not be blocked over a large area, and symptoms such as congestion will not be caused, which brings convenience when using it; 3. Each support column on the second clamping piece can also move left and right along the track of the through groove appropriately to prevent the support column from being in contact with the wrist for too long and causing congestion, making it safe and convenient for patients to use; 4. The surfaces between the three support columns inside the same through groove form a support plane that is not in a straight line. A pressure point of a pressing shell on the first clamping piece and the support points of 12 support columns on the support plane on the second clamping piece together constitute a three-dimensional stable compression support positioning space. When the patient uses it, the entire hemostatic clamp is stable and does not move, which improves the patient's wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of a first embodiment of the present invention; Figure 2 is a perspective view of a first embodiment of the present invention; Figure 3 A disassembled stereoscopic view of the pressing housing region of the first embodiment of the present invention; Figure 4 is a perspective view of a first embodiment of the present invention; Figure 5 It is a three-dimensional diagram of the second embodiment of the present invention.

[0016] Markings in the figure: 1. First clamping member; 11. Shaft support column; 12. Mounting groove; 2. Second clamping member; 21. Support boss; 22. Column shaft; 23. Through groove; 3. Clamping area; 4. Compression assembly; 41. Pressing shell; 411. Support shell; 42. Airbag; 43. Inflation pipeline; 44. Inflation valve; 45. Pressure relief device; 46. Pressure indicator; 5. Support assembly; 51. Support column; 52. Support plane; 511. Column boss; 6. Fixed hook. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figures 1 to 4 As shown, the first embodiment of the present invention is a hand-like hemostatic clip, comprising a first clamping member 1 and a second clamping member 2. The first clamping member 1 and the second clamping member 2 are arc-shaped. The arc-shaped first clamping member 1 and the second clamping member 2 form a clip shape. This shape imitates the finger joint and is more convenient to operate. The first clamping member 1 and the second clamping member 2 are movably connected. Specifically, one end of the first clamping member 1 is fixedly connected to a rotating shaft support column 11, and one end of the second clamping member 2 is extended outward to be provided with a plurality of supporting bosses 21, and the surface of each of the supporting bosses 21 is provided with a column rotating shaft 22, the column shaft 22 can be rotatably inserted into the interior of the shaft support column 11, that is, a hinge structure is formed between the column shaft 22 and the shaft support column 11. After this arrangement, the clamping angle between the first clamping member 1 and the second clamping member 2 can be freely adjusted, and it can be adapted to patients with different body weights, which increases convenience and versatility. The other ends of the first clamping member 1 and the second clamping member 2 are each provided with a fixed hook 6. After this arrangement, the external rope is tied to the fixed hook 6 to fix the right ends of the first clamping member 1 and the second clamping member 2, and the adjusted clamping angle is also fixed.

[0018] In the first embodiment, the inner surface of the first clamping member 1 is provided with a compression component 4 for compressing the bleeding point, and the inner surface of the second clamping member 2 is provided with a movable support component 5. The inner side of the first clamping member 1 and the inner side of the second clamping member 2 form a clamping area 3 for fitting to the surface of the wrist, wherein the compression component 4 includes a pressing shell 41, an airbag 42, an inflation pipeline 43, a support shell 411, and an inflation valve 44. The outer surface of the first clamping member 1 is provided with a mounting groove 12, and the interior of the mounting groove 12 is provided with a pressing shell 41, and the interior of the pressing shell 41 is connected to the airbag 42, one end of the airbag 42 is connected to the inflation pipeline 43, and the end of the inflation pipeline 43 is connected to the inflation valve 44, and the end of the inflation valve 44 is provided with a pressure relief device 45, which can be a pressure relief button or a pressure relief valve. The surface of the inflation pipeline 43 is also connected in series with a pressure indicator 46, and the pressure indicator Table 46 is used to display pressure values, wherein due to direct pressure from the airbag 42, lateral tension will be generated on the bleeding point or gauze due to the expansion of the airbag 42, which is harmful to wound healing. Therefore, a hard shell pressing shell 41 is integrally provided on the outside of the airbag 42 between the airbag and the bleeding point or gauze. It should be noted that the pressing shell 41 moves with the change of the airbag 42, and the support shell 411 is fixedly connected to the top of the mounting groove 12. The support shell 411 will not move relative to the first clamping member 1, that is, the support shell 411 limits the upward movement of the pressing shell 41, and the lateral force generated by the expansion of the airbag 42 will not affect the wound. The expansion of the airbag 42 will only make the pressing shell 41 move downward and gradually press the bleeding position, and the airbag 42 expands in all directions at the same time, and the pressing shell 41 limits each surface, so the expansion efficiency is higher, and when the airbag 42 contracts, the pressing shell 41 will gradually retract into the interior of the mounting groove 12.

[0019] The support assembly 5 includes a plurality of support columns 51. The surface of the second clamping member 2 is provided with a plurality of through grooves 23. A plurality of support columns 51 are slidably connected inside each of the through grooves 23. Adjacent support columns 51 do not interfere with each other. The ends of the support columns 51 are provided with column bosses 511. The column bosses 511 are inserted into the through grooves 23. The cross-sectional area of ​​the support columns 51 is larger than the cross-sectional area of ​​the column bosses 511. The support columns 51 face the inner side of the second clamping member 2. The column bosses 511 face the inner side of the second clamping member 2. On the outside of the second clamping member 2, the surface between the several support columns 51 inside the same through groove 23 forms a support plane 52, and the clamping area 3 is formed between the several support planes 52 and the pressing shell 41. The clamping area 3 makes the hemostatic clamp stable and does not move. The number of through grooves 23 is 4, and there are 3 support columns 51 inside each through groove 23. After such a setting, the airbag 42 is first inflated by the inflation valve 44. Since the pressing shell 41 and the airbag 42 are fixedly connected, the airbag 42 will push the pressing shell when it expands. 41 moves outward, then the inner sides of the first clamping member 1 and the second clamping member 2 are attached to the wrist, and the pressing shell 41 is attached to the bleeding point. The doctor uses his other hand to tie the fixed hook 6 to wrap the rope, and at the same time observes the reading of the pressure indicator 46 to adjust and fix it. The upper artery compression point of the pressing shell 41 and the three supporting columns 51 on each through groove 23 of the lower part refer to 12 supporting points in total. Since the total pressure of the upper and lower parts is equal, the pressure on each supporting point of the lower part is only one twelfth of the pressure of the upper arterial hemostasis point, and will not block other areas of the wrist. Blood reflux, of course, if the number of lower through grooves 23 and the number of support columns 51 are increased, the number of support points of the lower support column 51 can be even greater, and the force situation can be effectively dispersed, but the pressure of the compression point at the bottom of the shell 41 must be greater than or equal to the radial artery systolic pressure, and the pressure of each support point on the surface of the support column 51 is preferably less than the blood pressure of the subcutaneous vein. In order to prevent the support points on the surface of the support column 51 from being stressed for too long and causing congestion in the wrist area, the support column 51 can slide and adjust along the through groove 23 after supporting for a period of time.

[0020] In the first embodiment, in order to explain that the entire hemostatic clamp can have the effect of finger pressing, after the right ends of the first clamping member 1 and the second clamping member 2 are fixed, the bottom of the pressing shell 41 on the first clamping member 1 is equivalent to the thumb pressing the hemostatic opening, and the four through grooves 23 are equivalent to the four knuckles of the fingers, and the surfaces of the 12 movable support columns 51 inside the through grooves 23 are equivalent to the support points of the fingers fitting on the wrists, and the surfaces between the three support columns 51 inside the same through groove 23 form a support plane 52 that is not in a straight line, and the pressure point of the upper pressing shell 41 and the support points of the multiple support columns 51 on the lower support plane 52 together constitute a three-dimensional stable compression support positioning space, namely the clamping area 3, so that the hemostatic clamp is stable and does not move, and because the four fingers can take turns to rest in daily life, each support column 51 can be appropriately moved inside the through groove 23 for sliding adjustment, so the entire hemostatic structure is equivalent to imitating the hand to press and stop bleeding.

[0021] In the first embodiment, the pressing shell 41, the supporting shell 411 and the airbag 42 are made of transparent materials. This arrangement is intended to allow doctors or nurses to intuitively display the real-time status of the bleeding point through the pressing shell 41. The supporting column 51 is made of soft plastic material. This arrangement is intended to reduce the pressure effect of the surface of the supporting column 51 on the wrist and optimize the comfort of the patient when wearing it.

[0022] In the second embodiment, if Figure 5 , which is different from the first embodiment, the first clamping member 1 and the second clamping member 2 are made of slightly deformable flexible materials, such as elastic silicone material. A torsion spring is installed inside the cylindrical shaft 22, and is then connected to the shaft support column 11 through the torsion spring, so that it has a certain locking force. The shaft support column 11 is fixedly connected to one end of the first clamping member 1. In order to show it more clearly in the figure, it is disassembled. One end of the second clamping member 2 is provided with two fixed hooks 6. The external rope is tied to a hook 6 on the first clamping member 1 and two hooks 6 on the second clamping member 2 to form a stable triangular fixed structure, so that the entire device is not easy to slide when stopping bleeding.

[0023] For the hand-like hemostatic clamp of the first embodiment or the second embodiment, it is based on the flexibility of the human hand, which is better than various radial artery hemostatic devices currently available. By observing and analyzing the mechanical structure of the hand, it can be seen that the hand is a top-level hemostatic clamp, with the thumb pressing to stop bleeding, and the 12 knuckles of the remaining 4 fingers serve as support points on the opposite side of the pressing point. On the one hand, the number of pressing points: the number of support points = 1:12. If the area of ​​the pressing point = the area of ​​each support point, then the pressure of each support point = 1 / 12 of the pressure of the pressing point, and the veins on the back of the hand of the patient with the support point are under less pressure. On the other hand, the 12 support points are non-continuously distributed on the back of the hand on the opposite side of the pressing point, which does not cause large-scale compression and blockage of the veins, and can still ensure smooth blood flow in the back of the hand veins. Based on this feature, a special hemostatic clamp is designed to imitate the structure of the hand, and the upper clamping piece of the clamp, that is, the first clamping piece 1, is designed to be similar to the thumb structure to achieve the function of pressing to stop bleeding, and the lower clamping piece of the clamp, that is, the second clamping piece 2, is designed to be similar to the other four fingers through the support component to achieve the support function of multiple dispersed points, which combines the precision of the hand with the stability and durability of the instrument, and provides a design idea for the hand-imitating hemostatic clamp.

[0024] Working principle and use method of the present invention: Step 1: Inflate the airbag 42 so that the air pressure generated by the airbag 42 is greater than or equal to the arterial blood pressure; Step 2: The doctor clamps the first clamping member 1 and the second clamping member 2 on the patient's wrist with one hand; Step 3: The doctor winds the rope with his other hand while fixing the hook 6, and at the same time observes the reading of the pressure indicator 46 to adjust and fix it; Step 4: After a period of compression, it is necessary to release the pressure for a period of time, open the pressure relief device 45 at the end of the air valve 44 to reduce the pressure, and observe the reading of the pressure indicator 46 at the same time; Step 5: Observe the bleeding point through the transparent pressing shell 41 to see if there is bleeding, and then press the bleeding point again.

[0025] Step 6: After the bleeding point heals, untie the rope on the fixed hook 6.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A hand-like hemostatic clamp, comprising a first clamping member (1) and a second clamping member (2), characterized in that: The first clamping member (1) and the second clamping member (2) are movably connected, the inner side of the first clamping member (1) and the inner side of the second clamping member (2) form a clamping area (3) for fitting against the surface of the wrist, the inner surface of the first clamping member (1) is provided with a compression component (4) for compressing the bleeding point, and the inner surface of the second clamping member (2) is provided with a movable support component (5).

2. The hand-like hemostatic clip according to claim 1, characterized in that: One end of the first clamping member (1) is provided with a rotating shaft support column (11), and one end of the second clamping member (2) is provided with a plurality of supporting bosses (21) extending outwards, and a column rotating shaft (22) is provided on the surface of each supporting boss (21), and the column rotating shaft (22) is hingedly connected to the rotating shaft support column (11).

3. The hand-like hemostatic clip according to claim 2, characterized in that: The other ends of the first clamping member (1) and the second clamping member (2) are each provided with a fixed hook (6), and an external rope is tied to the fixed hook (6) so that one end of the first clamping member (1) and the second clamping member (2) are clamped.

4. The hand-like hemostatic clip according to claim 3, characterized in that: The compression assembly (4) comprises a pressing shell (41), a supporting shell (411), an airbag (42), an inflation pipeline (43) and an inflation valve (44). The outer surface of the first clamping member (1) is provided with a mounting groove (12). The interior of the mounting groove (12) is provided with a pressing shell (41). The airbag (42) is placed between the pressing shell (41) and the supporting shell (411). The pressing shell (41) moves with the change of the airbag (42). The supporting shell (411) is fixedly connected to the mounting groove (12). One end of the airbag (42) is connected to the inflation pipeline (43). The end of the inflation pipeline (43) is connected to the inflation valve (44). A pressure relief device (45) is provided at the end of the inflation valve (44). A pressure indicator (46) for displaying a pressure value is also serially connected to the surface of the inflation pipeline (43).

5. The hand-like hemostatic clip according to claim 4, characterized in that: The first clamping member (1) and the second clamping member (2) are arc-shaped, and the pressing shell (41), the supporting shell (411) and the airbag (42) are made of transparent material.

6. The hand-like hemostatic clip according to claim 5, characterized in that: The support assembly (5) comprises a plurality of support columns (51), a plurality of through grooves (23) are provided on the surface of the second clamping member (2), a plurality of support columns (51) are slidably connected inside each of the through grooves (23), and adjacent support columns (51) do not interfere with each other.

7. The hand-like hemostatic clip according to claim 6, characterized in that: A column boss (511) is provided at the end of the support column (51), the column boss (511) is inserted into the interior of the through groove (23), the cross-sectional area of ​​the support column (51) is greater than the cross-sectional area of ​​the column boss (511), the support column (51) faces the inner side of the second clamping member (2), and the column boss (511) faces the outer side of the second clamping member (2).

8. The hand-like hemostatic clip according to claim 7, characterized in that: The surfaces between the plurality of support columns (51) inside the same through groove (23) form a support plane (52), and the clamping area (3) is formed between the plurality of support planes (52) and the pressing shell (41).

9. The hand-like hemostatic clip according to claim 8, characterized in that: The support column (51) is made of soft plastic material.

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