Serially fired hemostatic clips

By designing a series of hemostatic clips, multiple clip components are sequentially fired using a lever, solving the problem of conventional hemostatic clips requiring multiple insertions, achieving rapid hemostasis and reducing patient suffering.

CN118490298BActive Publication Date: 2025-12-16JIANGSU BRIGHTNESS MEDICAL DEVICES CO LTD
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Patent Information

Application Number
CN202410626192.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-12-16
Estimated Expiration
2044-05-20

AI Technical Summary

Technical Problem

Conventional hemostatic clips are single-shot structures that need to be removed and reinserted after use, increasing patient discomfort.

Method used

Design a series of sequential hemostatic clips that use a lever to fire multiple clips in sequence, achieving rapid hemostasis and reducing patient suffering.

Benefits of technology

It enables the sequential firing of multiple hemostatic clip components, achieving rapid hemostasis and reducing the pain caused to patients by repeated insertion of hemostatic clips.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a continuous hemostatic clip and belongs to the technical field of medical devices. The hemostatic clip assembly of the continuous hemostatic clip comprises a fixing seat with an inner hole extending in a first direction, the inner hole being used for allowing a pull rod to pass through, and two mounting arms being arranged at one end of the fixing seat in a spaced manner; two clamping assemblies capable of being opened and closed, the clamping assembly comprising a clamp and a rotating piece, the rotating piece comprising a rotating and twisting part and a special-shaped ejection part, a first guide sliding surface being arranged at the connection transition of the special-shaped ejection part and the rotating and twisting part, the special-shaped ejection part being provided with an upper plane, the rotating and twisting part being rotationally connected with the inner wall surface of the mounting arm, one end of the clamp being fixedly connected with the upper plane, and the ball head part of the pull rod being capable of abutting against the first guide sliding surface and enabling the clamp on the rotating piece to be switched from an open state to a closed state. The application can realize the sequential continuous shooting and hemostasis of multiple hemostatic clip assemblies, realize rapid hemostasis and reduce the pain of patients.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a continuous-release hemostatic clip. BACKGROUND

[0002] Hemostatic operation under endoscopy is a relatively effective method because the lesion can be seen, and different hemostatic methods can be used according to the specific situation. Among them, the hemostatic clip is a relatively common one. Its principle is to use the mechanical force of the clip to clamp the tissue wound or blood vessel, so as to close the blood vessel and achieve the effect of hemostasis. After a few days, the wound heals, the clip head falls off, and is discharged out of the body along the digestive tract. The mechanical hemostasis of the endoscopic hemostatic clip causes the smallest damage to the mucosa around the wound, can directly clamp the visible bleeding blood vessels and lesions, and is especially suitable for small artery rupture bleeding.

[0003] However, the conventional hemostatic clip is a single-shot structure. After one hemostatic clip assembly is used up, the entire hemostatic clip device needs to be taken out, and then a new hemostatic clip device is inserted into the human body for hemostasis. The patient needs to bear more pain caused by the insertion of the hemostatic clip.

[0004] Therefore, it is urgent to provide a continuous-release hemostatic clip to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a continuous-release hemostatic clip, which can realize the sequential release and hemostasis of multiple hemostatic clip assemblies, achieve rapid hemostasis, and reduce the pain of patients.

[0006] To achieve the above purpose, the following technical solutions are provided:

[0007] The continuous-release hemostatic clip comprises an outer tube assembly, a hemostatic clip assembly and a pull rod arranged in the outer tube assembly, a plurality of hemostatic clip assemblies are arranged on the pull rod, and the hemostatic clip assembly comprises:

[0008] A fixed seat having an inner hole extending in a first direction, the inner hole being used for the pull rod to pass through, and two mounting arms being arranged at one end of the fixed seat in a spaced manner;

[0009] Two openable and closable clamping assemblies, the clamping assembly comprising a clip and a rotating piece, the rotating piece comprising a rotating part and a special-shaped ejection part, a first guide sliding surface being arranged at the connection transition of the special-shaped ejection part and the rotating part, the special-shaped ejection part being provided with an upper plane, the rotating part being rotationally connected with the inner wall surface of the mounting arm, one end of the clip being fixedly connected with the upper plane, and the ball head part of the pull rod being able to abut against the first guide sliding surface and switch the clip on the rotating piece from an open state to a closed state.

[0010] As an alternative to the continuously launched hemostatic clip, a clamping groove with a second guide sliding surface is arranged on the special-shaped ejection part, and the hemostatic clip assembly further comprises:

[0011] Two elastic sheets, the fixed end of the elastic sheet is connected with the fixed seat, and the elastic sheet is located between the two mounting arms, the limiting end of the elastic sheet extends in the first direction, the special-shaped ejection part can eject the limiting end of the elastic sheet and make the limiting end of the elastic sheet abut against the clamping groove.

[0012] As an alternative to the continuously launched hemostatic clip, the fixed end of the elastic sheet is provided with a first clamping part, the fixed seat is provided with a second clamping part, and the first clamping part is clamped with the second clamping part.

[0013] As an alternative to the continuously launched hemostatic clip, the special-shaped ejection part is provided with a lower plane and a boss plane, and the lower plane and the boss plane of the two rotating parts form an avoiding space.

[0014] As an alternative to the continuously launched hemostatic clip, the clip comprises a first segment, a second segment, a third segment and a fourth segment connected in sequence, the first segment is arranged at an angle with the second segment, the first segment is used for clamping tissue, the third segment is curvedly arranged away from the other clip, and the fourth segment is used for connecting with the upper plane of the special-shaped ejection part.

[0015] As an alternative to the continuously launched hemostatic clip, the second segment is an arc-shaped structure, and the second segment is curvedly arranged around the axis of the outer tube assembly.

[0016] As an alternative to the continuously launched hemostatic clip, the first segment is provided with a clamping tooth part.

[0017] As an alternative to the continuously launched hemostatic clip, the first segment is provided with an arc-shaped notch, and the inner diameter of the arc-shaped hole formed by the arc-shaped notches of the two clips in the closed state of the hemostatic clip assembly is not less than the diameter of the ball head of the pull rod.

[0018] As an alternative to the continuously launched hemostatic clip, the upper plane of the special-shaped ejection part is provided with a third clamping part, the fourth segment is provided with a fourth clamping part, and the third clamping part is clamped with the fourth clamping part.

[0019] As an alternative to the continuously launched hemostatic clip, a chuck pushing piece is arranged in the outer tube assembly, and the chuck pushing piece is used to push the hemostatic clip assembly to move in the outer tube assembly.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The continuous hemostatic clip provided by the application is fixedly connected with the special-shaped top surface of the rotating part at one end of the clip, the rotating part can drive the clip to rotate through a set angle, rotating parts are arranged on the inner wall surfaces of the two mounting arms of the fixed seat, a first guiding sliding surface is arranged at the connection transition of the special-shaped top part and the rotating part of the rotating part, the ball head part of the pull rod can abut against the first guiding sliding surface, and the clip on the rotating part can be switched from the open state to the closed state by pulling the pull rod. An inner hole extending in the first direction is arranged in the fixed seat, so as to ensure the smoothness of the movement of the pull rod. The application adopts the mode that the pull rod is pulled to realize the rotation and clamping of the two clips, so that the clip is switched from the open state to the closed state. Moreover, the distance of the movement of the pull rod in the fixed seat in the first direction is positively correlated with the angle of the rotation of the clip, so that the operator can adjust the included angle between the two clips according to the actual use requirement, and realize the repeated opening and closing of the two clips. Since a plurality of hemostatic clip assemblies are arranged on the pull rod, the pull rod can realize the continuous shooting and hemostasis of the plurality of hemostatic clip assemblies in sequence, so that the rapid hemostasis is realized and the pain of the patient is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by the person skilled in the art according to the contents of the embodiments of the application and the drawings without any creative effort.

[0023] Figure 1 The structure schematic diagram of the continuous hemostatic clip in the loading state in the embodiments of the application;

[0024] Figure 2 The structure schematic diagram of the continuous hemostatic clip in the repeated opening and closing state in the embodiments of the application;

[0025] Figure 3 The structure schematic diagram of the continuous hemostatic clip in the locking state in the embodiments of the application;

[0026] Figure 4 The structure schematic diagram of the continuous hemostatic clip in the locking state in the embodiments of the application;

[0027] Figure 5 The structure schematic diagram of the pull rod in the embodiments of the application;

[0028] Figure 6 The structure schematic diagram of the clip of the hemostatic clip assembly in the open state in the embodiments of the application;

[0029] Figure 7 The structure schematic diagram of the clip of the hemostatic clip assembly in the open state in the embodiments of the application;

[0030] Figure 8 Structure diagram of the clip in the closed state of the hemostatic clip assembly in the embodiment of the present application;

[0031] Figure 9 Sectional view of the clip in the closed state of the hemostatic clip assembly in the embodiment of the present application;

[0032] Figure 10 Exploded diagram of the hemostatic clip assembly in the embodiment of the present application;

[0033] Figure 11 Structure diagram of the fixing seat in the embodiment of the present application;

[0034] Figure 12 Sectional view of the fixing seat in the embodiment of the present application;

[0035] Figure 13 Structure diagram of the elastic sheet in the embodiment of the present application;

[0036] Figure 14 Structure diagram of the rotating member in the first perspective in the embodiment of the present application;

[0037] Figure 15 Structure diagram of the rotating member in the second perspective in the embodiment of the present application;

[0038] Figure 16 Structure diagram of the rotating member in the third perspective in the embodiment of the present application;

[0039] Figure 17 Structure diagram of the clip in the embodiment of the present application;

[0040] Figure 18 Sectional view of the clip in the embodiment of the present application.

[0041] Reference signs:

[0042] 1, outer tube assembly; 2, hemostatic clip assembly; 3, pull rod; 4, clip head pushing piece;

[0043] 11, front-end tube; 12, spring tube;

[0044] 21, fixing seat; 22, clip; 23, rotating member; 24, elastic sheet;

[0045] 211, inner hole; 212, mounting arm; 2121, pin hole; 213, second clamping part;

[0046] 221, first segment; 2211, clip tooth part; 2212, arc-shaped notch; 222, second segment; 223, third segment; 224, fourth segment; 2241, fourth clamping part;

[0047] 231, rotating and twisting part; 2311, pin shaft part; 232, special-shaped ejection part; 2321, upper plane; 2322, second guiding sliding surface; 2323, clamping groove; 2324, lower plane; 2325, boss surface; 2326, third clamping part; 233, first guiding sliding surface;

[0048] 241, first clamping part; 242, contact end surface;

[0049] 31, ball head part; 32, rod part. DETAILED DESCRIPTION

[0050] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0051] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship usually placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0052] In the description of the present application, it should also be noted that, unless otherwise specified and limited, the terms "provided", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0054] In order to realize the sequential firing of multiple hemostatic clip assemblies and hemostasis, realize rapid hemostasis and reduce the pain of patients, the embodiment provides a sequential hemostatic clip, which is described below in combination with Figures 1 to 18 The specific content of the embodiment is described in detail. It should be noted that the first direction or horizontal straight line direction mentioned in the embodiment is the X direction in Figure 1

[0055] As shown in Figures 1 to 5 The sequential hemostatic clip in the embodiment includes an outer tube assembly 1 and a hemostatic clip assembly 2, a pull rod 3 and a clip head pushing piece 4 arranged in the outer tube assembly 1. A plurality of hemostatic clip assemblies 2 are arranged on the pull rod 3, and the clip head pushing piece 4 is used to push the hemostatic clip assembly 2 to move in the outer tube assembly 1. The outer tube assembly 1 includes a front end tube 11 and a spring tube 12. The spring tube 12 can be elastically bent and deformed, so that the sequential hemostatic clip can adapt to different travel routes.

[0056] As shown in Figures 6 to 16 The hemostatic clip assembly 2 includes a fixed seat 21 and two openable and closable clamping assemblies. The fixed seat 21 has an inner hole 211 extending in the first direction, and the size of the inner hole 211 is greater than that of the ball head 31 of the pull rod 3. The inner hole 211 is used for the pull rod 3 to pass through, and one end of the fixed seat 21 is spaced apart and provided with two mounting arms 212. The clamping assembly includes a clip 22 and a rotating piece 23. The rotating piece 23 includes a rotating torsion portion 231 and a special-shaped ejection portion 232. The special-shaped ejection portion 232 is provided with a first guide sliding surface 233 at the connection transition of the rotating torsion portion 231. The special-shaped ejection portion 232 is provided with an upper plane 2321, and the rotating torsion portion 231 is rotationally connected with the inner wall surface of the mounting arm 212. One end of the clip 22 is fixedly connected with the upper plane 2321, and the ball head 31 of the pull rod 3 can abut against the first guide sliding surface 233 and switch the clip 22 on the rotating piece 23 from the open state to the closed state.

[0057] Specifically, each mounting arm 212 of the fixed seat 21 is provided with a pin hole 2121, and the rotating torsion portion 231 is provided with a pin shaft portion 2311. The pin shaft portion 2311 is in clearance fit with the pin hole 2121, so that the rotating piece 23 can rotate under the action of the pull rod 3.

[0058] ​Briefly, the continuous hemostatic clip provided by the present application is characterized in that one end of the clip 22 is fixedly connected with the special-shaped top-out upper plane 2321 of the rotating member 23, the rotating member 23 can drive the clip 22 to rotate through a set angle, the inner wall surface of each of the two mounting arms 212 of the fixed seat 21 is provided with the rotating member 23, the first guiding sliding surface 233 is arranged at the connection transition of the special-shaped top-out portion 232 and the rotating twist portion 231 of the rotating member 23, the ball head portion 31 of the pull rod 3 can abut against the first guiding sliding surface 233, and the clip 22 on the rotating member 23 can be switched from the open state to the closed state by pulling the pull rod 3. The inner hole 211 extending along the first direction is arranged through the inside of the fixed seat 21, so as to ensure the smoothness of the movement of the pull rod 3. The present application adopts the mode that the pull rod 3 is pulled to realize the rotation and clamping of the two clips 22, so that the clip 22 is switched from the open state to the closed state. Moreover, the distance of the movement of the pull rod 3 along the first direction in the fixed seat 21 is positively correlated with the angle of the rotation of the clip 22, so that the operator can adjust the included angle between the two clips 22 according to the actual use requirement, so as to realize the repeated opening and closing of the two clips 22. Since the plurality of hemostatic clip assemblies 2 are arranged on the pull rod 3, the plurality of hemostatic clip assemblies 2 can be sequentially and continuously fired and hemostatic by the pull rod 3, so that the rapid hemostasis is realized and the pain of the patient is reduced.

[0059] Preferably, as Figure 1 , Figure 2 combined with Figure 7 shown, when the clip 22 is not locked, the first guiding sliding surface 233 is in an inclined state, which is similar to the design of a conical surface structure, so as to facilitate the rotation of the rotating member 23 driven by the ball head portion 31 of the pull rod 3 under the action of force. As Figure 3 combined with Figure 8 and Figure 9 shown, when the clip 22 is locked, the first guiding sliding surface 233 is in a horizontal state.

[0060] Further, as Figure 16 combined with Figure 8 and Figure 9 shown, the special-shaped top-out portion 232 is provided with the clamping groove 2323 with the second guiding sliding surface 2322, the hemostatic clip assembly 2 further comprises two elastic pieces 24, the fixed end of the elastic piece 24 is connected with the fixed seat 21, the elastic piece 24 is located between the two mounting arms 212, the limiting end of the elastic piece 24 extends along the first direction, the special-shaped top-out portion 232 can top out the limiting end of the elastic piece 24 and make the contact end surface 242 of the limiting end of the elastic piece 24 abut against the clamping groove 2323, so as to realize the locking of the rotating member 23 by the elastic piece 24. The elastic piece 24 is made of elastic material, which will be deformed (bent upward and will not be broken) under the action of force. Due to the material itself, the elastic piece 24 will restore to the original state without the action of force after deformation, and is in a horizontal state extending along the first direction.

[0061] Exemplarily, asFigure 9 Combination Figures 11 to 13 As shown, the fixed end of the spring 24 is provided with a first locking part 241, and the fixed base 21 is provided with a second locking part 213. The first locking part 241 and the second locking part 213 are fixedly locked together to ensure the connection between the spring 24 and the fixed base 21 and to prevent the spring 24 from being dislodged from the fixed base 21 due to external force, which would cause the hemostatic clip assembly 2 to fail.

[0062] For example, in this embodiment, the first locking part 241 is a locking hole, the second locking part 213 is a locking post, the rotating part 23 rotates under the action of force, the upper plane 2321 drives the spring piece 24 to deform until the upper plane 2321 disengages from the spring piece 24. At this time, the spring piece 24 returns to its original shape, and the locking groove 2323 with the second guiding sliding surface 2322 contacts the contact end surface 242 of the spring piece 24 to prevent the rotating part 23 from rotating.

[0063] Furthermore, such as Figure 1 Combination Figure 15 As shown, the irregularly shaped ejector portion 232 has a lower plane 2324 and a boss surface 2325. The lower plane 2324 and the boss surface 2325 of the two rotating members 23 enclose a clearance space. By adding the lower plane 2324 and the boss surface 2325 to the two rotating members 23, a clearance space is formed to avoid the rod portion 32 of the pull rod 3. The annular dimension of this clearance space is larger than the rod portion 32 of the pull rod 3, but smaller than the ball head 31 of the pull rod 3, so that the ball head 31 of the pull rod 3 can only be blocked by the first guide sliding surface 233, preventing the pull rod 3 from falling off. In order for the ball head 31 of the pull rod 3 to escape the restriction of the rotating member 23, it needs to drive the first guide sliding surface 233 to move to a horizontal angle (in a horizontal straight state), so that the ball head 31 can pass smoothly. Understandably, when the first guide sliding surfaces 233 of the two rotating parts 23 move to the horizontal plane angle (in a horizontal straight state), the distance between the two first guide sliding surfaces 233 is greater than the ball head 31 of the pull rod 3.

[0064] Specifically, such as Figure 6 Combination Figure 17 and Figure 18 As shown, each clip 22 includes a first segment 221, a second segment 222, a third segment 223, and a fourth segment 224 connected in sequence. The first segment 221 and the second segment 222 are arranged at an angle. The first segment 221 is used to clamp tissue. The third segment 223 is bent away from the other clip 22. The fourth segment 224 is used to connect with the upper surface 2321 of the irregular ejector portion 232. The clips 22 are formed of elastic material. The area between the first segments 221 of the two clips 22 is the clamping edge area, used to clamp tissue. The second segment 222 is the clamping plate area, and the third segment 223 is the clamping plate deformation area. This position is deformed and has a certain curvature to facilitate the smooth opening and closing of the clips 22 after they are exposed from the outer tube assembly 1.

[0065] Furthermore, the second segment 222 has an arc-shaped structure, and the second segment 222 is bent around the axis of the outer tube assembly 1. The arc-shaped structure of the second segment 222 can reduce the resistance when the clamp 22 moves inside the outer tube assembly 1.

[0066] Furthermore, the first segment 221 is provided with clamping teeth 2211 to ensure a stable clamping and hemostasis function on the tissue. In this embodiment, the hemostatic clip assembly 2 includes two clips 22. The two clips 22 have the same structure, the only difference being that the clamping teeth 2211 of the two clips 22 are different in shape, and the clamping teeth 2211 of the two clips 22 interlock with each other.

[0067] Furthermore, the first segment 221 is provided with an arc-shaped notch 2212. When the hemostatic clip assembly 2 is in the closed state, the inner diameter of the arc-shaped hole formed by the arc-shaped notches 2212 of the two clips 22 is not less than the diameter of the ball head 31 of the pull rod 3.

[0068] Furthermore, the upper surface 2321 of the irregular ejector portion 232 is provided with a third locking portion 2326, and the fourth segment 224 is provided with a fourth locking portion 2241. The third locking portion 2326 and the fourth locking portion 2241 are fixedly locked together to ensure the connection stability between the clamp 22 and the rotating member 23 and to prevent the clamp 22 from falling off, which would cause the hemostatic clamp assembly 2 to fail.

[0069] In summary, combining Figures 1 to 4 As shown, the simulation depicts the entire process of a hemostatic clip component 2 from its open state to its closed state, and then to its dislodgement (this does not represent the first hemostatic clip component 2): [Example image would be inserted here] Figure 1 The diagram shows clip 22 in the loaded state. The foremost hemostatic clip assembly 2 is restricted from moving forward by the ball head 31 of the lever 3, and simultaneously, it is restricted from moving backward by the next hemostatic clip assembly 2. Figure 2 The clamp 22 is shown in a state where it can be repeatedly opened and closed. Pulling the lever 3 causes the ball head 31 to rotate counterclockwise, leading to the first guide sliding surface 233. The spring piece 24 gradually deforms as the upper plane 2321 pushes, until the clamp 22 closes. After the clamp 22 closes, as long as the ball head 31 has not disengaged from the first guide sliding surface 233, pushing the lever 3 forward causes the ball head 31 to return to its original position. Since there is no force acting on it, the spring piece 24 returns to its original position, causing the rotating component 23 and the clamp 22 to return to their original positions, thus achieving the repeated opening and closing of the clamp 22. Figure 3 The image shows the clamp 22 in the locked state: After the clamp 22 is closed, a relatively large force is applied to pull the lever 3, causing the first guide sliding surface 233 to be pushed to a horizontal state. At this time, the rotating component 23 disengages from the spring piece 24, the spring piece 24 returns to its original shape, and simultaneously the ball head 31 smoothly disengages from the rotating component 23. The slot 2323, restricted by the contact end face 242 of the spring piece 24, will not rotate back. At this time, the hemostatic clamp assembly 2 is completely locked. Figure 4The hemostatic clip assembly 2 is shown in the disengaged state: the pull rod 3 is disengaged from the previous hemostatic clip assembly 2, the outer tube assembly 1 is retracted, and the previous hemostatic clip assembly 2 is completely disengaged. The pusher 4 is pushed, sequentially driving the remaining hemostatic clip assemblies 2 to move forward until the first guide sliding surface 233 of the hemostatic clip assembly 2 at the front end is in contact with the ball head 31 of the pull rod 3, and the clip 22 is in the unfolded state, and a new cycle begins.

[0070] It should be noted that the above only describes the preferred embodiments of the present application and the principles of the technology used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, reconfigurations and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A series of hemostatic clips, comprising an outer tube assembly (1) and a hemostatic clip assembly (2) and a pull rod (3) disposed within the outer tube assembly (1), characterized in that, Several hemostatic clip assemblies (2) are threaded onto the pull rod (3), and each hemostatic clip assembly (2) includes: The fixing base (21) has an inner hole (211) extending in a first direction for the pull rod (3) to pass through, and two mounting arms (212) are provided at one end of the fixing base (21) at intervals. Two clamping components that can be opened and closed are provided. The clamping components include a clamp (22) and a rotating component (23). The rotating component (23) includes a rotating part (231) and a shaped ejector part (232). A first guide sliding surface (233) is provided at the connection transition between the shaped ejector part (232) and the rotating part (231). The shaped ejector part (232) is provided with an upper plane (2321). The rotating part (231) is rotatably connected to the inner wall surface of the mounting arm (212). One end of the clamp (22) is fixedly connected to the upper plane (2321). The ball head (31) of the pull rod (3) can abut against the first guide sliding surface (233) and switch the clamp (22) on the rotating component (23) from the open state to the closed state.

2. The repeating hemostatic clip according to claim 1, characterized in that, The irregularly shaped ejector portion (232) is provided with a slot (2323) having a second guide sliding surface (2322), and the hemostatic clip assembly (2) further includes: Two spring pieces (24) are provided, with the fixed end of the spring piece (24) connected to the fixed base (21) and the spring piece (24) located between the two mounting arms (212). The limiting end of the spring piece (24) extends along a first direction, and the irregular ejector (232) can eject the limiting end of the spring piece (24) and make the limiting end of the spring piece (24) abut against the slot (2323).

3. The repeating hemostatic clip according to claim 2, characterized in that, The fixed end of the spring (24) is provided with a first snap-fit ​​part (241), and the fixed base (21) is provided with a second snap-fit ​​part (213). The first snap-fit ​​part (241) and the second snap-fit ​​part (213) are snapped together.

4. The repeating hemostatic clip according to claim 1, characterized in that, The irregularly shaped ejector (232) has a lower plane (2324) and a boss surface (2325), and the lower plane (2324) and the boss surface (2325) of the two rotating members (23) form a clearance space.

5. The repeating hemostatic clip according to claim 1, characterized in that, The clamp (22) includes a first segment (221), a second segment (222), a third segment (223), and a fourth segment (224) connected in sequence. The first segment (221) is set at an angle to the second segment (222). The first segment (221) is used to clamp tissue. The third segment (223) is bent away from the other clamp (22). The fourth segment (224) is used to connect to the upper surface (2321) of the irregular ejector (232).

6. The repeating hemostatic clip according to claim 5, characterized in that, The second segment (222) is an arc-shaped structure, and the second segment (222) is bent around the axis of the outer tube assembly (1).

7. The repeating hemostatic clip according to claim 5, characterized in that, The first segment (221) is provided with a clamping tooth portion (2211).

8. The repeating hemostatic clip according to claim 7, characterized in that, The first segment (221) is provided with an arc-shaped notch (2212). When the hemostatic clip assembly (2) is in the closed state, the inner diameter of the arc-shaped hole formed by the arc-shaped notches (2212) of the two clips (22) is not less than the diameter of the ball head (31) of the pull rod (3).

9. The repeating hemostatic clip according to claim 5, characterized in that, The upper surface (2321) of the irregular ejector portion (2322) is provided with a third snap-fit ​​portion (2326), and the fourth segment (224) is provided with a fourth snap-fit ​​portion (2241). The third snap-fit ​​portion (2326) snaps into the fourth snap-fit ​​portion (2241).

10. The repeating hemostatic clip according to any one of claims 1-9, characterized in that, The outer tube assembly (1) is provided with a clamp pusher (4), which is used to push the hemostatic clamp assembly (2) to move within the outer tube assembly (1).

Citation Information

Patent Citations

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