Stable hemostatic clip
By setting a barrier at the outer tube end of the hemostasis clamp, the problem of shaking the clamp arm is solved, and a more stable clamping and smooth recycling is achieved.
Patent Information
- Application Number
- CN202421061186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-15
AI Technical Summary
There is a large gap between the clamp arms of the existing hemostasis clamps, which causes the clamp arms to shake greatly, affecting the wound clamping, and the tissue may enter the outer tube, resulting in difficulty in recycling the clamp arms.
A barrier is provided at the end of the outer tube of the hemostasis clip, which is located between the clamp arms, which reduces the gap between the clamp arms, and is in line with the curved direction of the clamp arms through an arc-shaped design, reducing the possibility of tissue entering the outer tube.
It effectively reduces the shaking range of the clamp arm, improves sliding stability, and ensures that the clamp arm can be recycled smoothly, enhancing the hemostatic effect.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of medical devices, and in particular to a stable hemostatic clip. Background Art
[0002] A hemostatic clip is a medical device that uses mechanical clamping to clamp a wound to achieve hemostasis. It has the characteristics of minimally invasive, rapid hemostasis, low rebleeding and low probability of complications. Existing hemostatic clips usually include an outer tube, two clamp arms slidably inserted in the outer tube, and a driving rod for driving the clamp arms to slide. The two clamp arms are pushed and pulled by the driving rod, so that the two clamp arms are accommodated in the outer tube and clamped relatively, or separated from the outer tube and opened relatively during the sliding process.
[0003] However, the existing hemostatic clip has a large gap between the two clamp arms, which not only causes the clamp arms to shake greatly during the sliding process, affecting the clamping of the two clamp arms on the wound; but also during the use of the hemostatic clip, tissue in the patient's body may enter the outer tube through the gap, causing the two clamp arms to be subjected to a large external support force when they are retracted, affecting the smooth recovery of the two clamp arms. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the present application provides a stable hemostatic clamp that can reduce the shaking amplitude of two clamp arms and prevent tissue from entering an outer tube.
[0005] The present application provides a stable hemostatic clip that adopts the following technical solution:
[0006] A stable hemostatic clamp comprises an outer tube, a clamping assembly and a driving assembly. The clamping assembly comprises two clamping arms which can be relatively opened or closed and are arranged at the ends of the outer tube. The driving assembly is used to drive the two clamping arms to move. A resisting portion is arranged at the end of the outer tube, and the resisting portion is located between the two clamping arms.
[0007] By adopting the above technical solution, the blocking part can reduce the gap between the two clamp arms, thereby reducing the shaking amplitude of the clamp arms and improving the sliding stability of the two clamp arms. At the same time, the blocking part can effectively reduce the tissue entering the outer tube and ensure that the two clamp arms can be smoothly recovered.
[0008] In a specific possible implementation mode, the two clamp arms are bent in directions away from each other, the blocking portion is arc-shaped, and the arc-shaped bending direction of the blocking portion is the same as the direction from the outer tube to the clamping assembly.
[0009] By adopting the above technical solution, the arc-shaped resisting portion can match the bending direction of the clamp arm, so that the resisting portion can maintain a small gap with the clamp arm during the sliding process of the clamp arm, thereby improving the sliding stability of the clamp arm.
[0010] In a specific possible implementation manner, there are two blocking parts, and the two blocking parts are respectively located on both sides of the outer tube in a radial direction, and the arrangement direction of the two blocking parts is perpendicular to the arrangement direction of the two clamping arms.
[0011] By adopting the above technical solution, not only the gap between the two clamp arms can be further reduced, but also the entry of tissue into the outer tube can be further reduced.
[0012] In a specific possible implementation manner, the blocking portion includes a first portion connected to the inner wall of the outer tube, and a second portion provided on the first portion, and the second portion is located between the two clamping arms.
[0013] In a specific implementation manner, the width of the first body is greater than the width of the second body, and a first gap is formed between the first body, the second body and the inner wall of the outer tube for the clamp arm to pass through.
[0014] By adopting the above technical solution, the two clamping arms will not directly contact the resisting part during the movement, which effectively avoids the resisting part from interfering with the movement of the two clamping arms.
[0015] In a specific possible implementation scheme, a mounting plate is further provided at the end of the outer tube, the length direction of the mounting plate is the same as the axial direction of the outer tube, and the blocking portion is provided on the inner wall of the mounting plate and is perpendicular to the mounting plate.
[0016] In a specific possible implementation manner, the clamp arm includes a sliding portion slidably inserted into the outer tube, a clamping portion provided at one end of the sliding portion away from the outer tube, and the blocking portion is located between the two sliding portions.
[0017] By adopting the above technical solution, the blocking part can reduce the gap between the two sliding parts, thereby reducing the shaking amplitude of the sliding part and improving the sliding stability of the two sliding parts. At the same time, the blocking part can effectively reduce the tissue entering the outer tube and ensure that the two sliding parts can be smoothly recovered.
[0018] In a specific possible implementation scheme, the outer tube includes a receiving portion and a hand-holding portion, the two clamp arms are arranged at one end of the receiving portion away from the hand-holding portion, and the driving assembly includes a driving rod slidably penetrated through the hand-holding portion, one end of the driving rod penetrates into the receiving portion and is connected to the two clamp arms.
[0019] By adopting the above technical solution, the doctor can hold the handheld part and operate the two clamping arms on the receiving part through the driving rod.
[0020] In a specific possible implementation scheme, two connecting hooks are provided at the end of the driving rod, and connecting shafts are passed through the ends of the two clamp arms, and the two connecting hooks are respectively hooked at two ends of the connecting shaft.
[0021] By adopting the above technical solution, the driving rod can synchronously drive the two clamping arms through the two connecting hooks, thereby improving the clamping effect of the two clamping arms.
[0022] In a specific feasible implementation scheme, the connecting hook is deformably arranged, and a connecting tube is provided at one end of the accommodating portion close to the hand-held portion, wherein the connecting tube is inserted into the hand-held portion and detachably connected to the hand-held portion, and the hemostatic clamp also includes a disassembly part and a sliding tube arranged in the hand-held portion, wherein the disassembly part includes two V-shaped disassembly rods, wherein the ends of the two disassembly rods are respectively connected to the inner wall of the hand-held portion, and the sliding tube is sleeved on the driving rod and a second gap is provided between the two, and one of the disassembly rods can be slidably inserted into the second gap.
[0023] By adopting the above technical solution, the connecting hook and the connecting shaft, and the hand-holding part and the receiving part can be easily separated, so that the doctor can leave the two clamping arms and the receiving part in the patient's body after the clamping is completed; at the same time, the disassembly part can pull the hand-holding part under the pressure of the sliding cylinder, so as to facilitate the rapid separation of the hand-holding part and the receiving part.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. The blocking part can reduce the shaking amplitude of the clamping arm and improve the sliding stability of the two clamping arms;
[0026] 2. The stopper can effectively reduce the amount of tissue that enters the outer tube, ensuring that the two clamp arms can be smoothly retracted. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a side view of a stable hemostatic clip according to an embodiment of the present application.
[0028] Figure 2 yes Figure 1 Schematic diagram of the AA section in.
[0029] Figure 3 4 is a front view of a stable hemostatic clip according to an embodiment of the present application.
[0030] Figure 4 yes Figure 3 Schematic diagram of the BB cross section.
[0031] Figure 5 4 is a top view of the stable hemostatic clip according to an embodiment of the present application.
[0032] Figure 6 yes Figure 4 The enlarged schematic diagram of point C in FIG.
[0033] Description of reference numerals:
[0034] 1. Outer tube; 11. Receiving part; 12. Hand-held part; 13. Connecting tube; 2. Clamping assembly; 21. Clamping arm; 211. Sliding part; 212. Clamping part; 3. Driving assembly; 31. Driving rod; 32. Connecting hook; 33. Connecting shaft; 4. Retaining part; 41. First body; 42. Second body; 5. First gap; 6. Mounting plate; 7. Disassembly part; 71. Disassembly rod; 8. Sliding tube. DETAILED DESCRIPTION
[0035] The present application is further described in detail below in conjunction with the accompanying drawings.
[0036] See also Figure 1-6 As shown, a stable hemostatic clip is shown, which includes an outer tube 1, a clamping assembly 2 and a driving assembly 3. The clamping assembly 2 includes two clamp arms 21 that can be relatively opened or closed and are arranged at the ends of the outer tube 1. The driving assembly 3 is used to drive the two clamp arms 21 to move. A resisting portion 4 is provided at the end of the outer tube 1. The resisting portion 4 is located between the two clamp arms 21. The plane where the resisting portion 4 is located is perpendicular to the axial direction of the outer tube 1. The two clamp arms 21 are symmetrically arranged about the resisting portion 4. The resisting portion 4 can reduce the gap between the two clamp arms 21, thereby reducing the shaking amplitude of the clamp arms 21 and improving the sliding stability of the two clamp arms 21. At the same time, the resisting portion 4 can effectively reduce the tissue from entering the outer tube 1, ensuring that the two clamp arms 21 can be smoothly recovered.
[0037] When the above-mentioned hemostatic clamp is in use, the two clamp arms 21 are driven to slide by the driving assembly 3, and the two clamp arms 21 can be received in the outer tube 1 and relatively closed to clamp the patient's wound, or separated from the outer tube 1 and relatively opened to loosen the wound. In the process of the two clamp arms 21 opening and closing relative to each other, the resisting portion 4 can maintain a small gap with the two clamp arms 21, thereby greatly reducing the shaking of the clamp arms 21 and improving the clamping effect of the clamp arms 21 on the wound.
[0038] In this embodiment, if Figure 2 As shown, the two clamp arms 21 are bent in directions away from each other. When the two clamp arms 21 are opened or closed, each clamp arm 21 slides in its bending direction. The blocking portion 4 is arc-shaped, and the arc-shaped bending direction of the blocking portion 4 is the same as the direction from the outer tube 1 to the clamping assembly 2. The arc-shaped blocking portion 4 can match the bending direction of the clamp arm 21, so that the blocking portion 4 can maintain a small gap with the clamp arm 21 during the sliding process of the clamp arm 21, thereby improving the sliding stability of the clamp arm 21.
[0039] like Figure 4As shown, there are two resisting parts 4 , which are respectively located on both sides of the outer tube 1 in the radial direction, and the arrangement direction of the two resisting parts 4 is perpendicular to the arrangement direction of the two clamping arms 21 .
[0040] In this embodiment, combined with Figure 2 and Figure 4 As shown, a mounting plate 6 is also provided at the end of the outer tube 1. The length direction of the mounting plate 6 is the same as the axial direction of the outer tube 1. There are two mounting plates 6 and they are respectively arranged on both sides of the end of the outer tube 1. Each retaining portion 4 is respectively arranged on the inner wall of the corresponding mounting plate 6 and is perpendicular to the mounting plate 6.
[0041] like Figure 5 As shown, the blocking portion 4 includes a first body 41 connected to the inner wall of the mounting plate 6, and a second body 42 disposed on the first body 41. The first body 41 and the second body 42 are integrally formed, and the second body 42 is located between the two clamping arms 21. The width of the first body 41 is greater than the width of the second body 42, and a first gap 5 is formed between the first body 41, the second body 42 and the inner wall of the outer tube 1 for the clamping arms 21 to pass through. In this way, the two clamping arms 21 will not directly contact the blocking portion 4 during the sliding process, effectively avoiding the interference of the blocking portion 4 on the movement of the two clamping arms 21.
[0042] In this embodiment, if Figure 2 As shown, the clamp arm 21 includes a sliding portion 211 slidably inserted into the outer tube 1, a clamping portion 212 provided at one end of the sliding portion 211 away from the outer tube 1, and the blocking portion 4 is located between the two sliding portions 211. The two sliding portions 211 are respectively curved and the bending directions of the two are opposite. The two sliding portions 211 can slide along their respective bending directions and relatively open or close. The two clamping portions 212 are relatively opened or closed under the drive of the two sliding portions 211 to achieve clamping of the wound.
[0043] In this embodiment, the outer tube 1 includes a coaxially arranged receiving portion 11 and a hand-holding portion 12, two clamping arms 21 are provided at one end of the receiving portion 11 away from the hand-holding portion 12, and the driving assembly 3 includes a driving rod 31 which is slidable along its own axial direction and is penetrated in the hand-holding portion 12, and one end of the driving rod 31 penetrates into the receiving portion 11 and is connected to the two clamping arms 21.
[0044] like Figure 2 and Figure 4 As shown, two connecting hooks 32 are provided at the end of the driving rod 31, and connecting shafts 33 are passed through the ends of the two clamping arms 21, and the two connecting hooks 32 are respectively hooked at both ends of the connecting shaft 33. When in use, the driving rod 31 can synchronously drive the two clamping arms 21 through the two connecting hooks 32, thereby improving the clamping effect of the two clamping arms 21.
[0045] In this embodiment, the connecting hook 32 is deformable, and a connecting tube 13 is provided at one end of the receiving portion 11 close to the hand-held portion 12. The connecting tube 13 is inserted into the hand-held portion 12 and is detachably connected to the hand-held portion 12. The connecting tube 13 and the hand-held portion 12 are interference-fitted. Figure 6 As shown, the hemostatic clamp also includes a disassembly piece 7 and a slide 8 arranged in the hand-held part 12. The disassembly piece 7 includes two V-shaped disassembly rods 71. The ends of the two disassembly rods 71 are respectively connected to the inner wall of the hand-held part 12. The slide 8 is sleeved on the driving rod 31 and there is a second gap between the two. One of the disassembly rods 71 can be slidably inserted into the second gap.
[0046] After the two clamping arms 21 are clamped together, the connecting hook 32 and the connecting shaft 33, as well as the hand-held portion 12 and the receiving portion 11 can be easily separated, so that the doctor can leave the two clamping arms 21 and the receiving portion 11 in the patient's body after the clamping is completed; and the disassembly part 7 can pull the hand-held portion 12 under the pressure of the slide 8, so as to facilitate the rapid separation of the hand-held portion 12 and the receiving portion 11.
[0047] The implementation principle of a stable hemostatic clip in the embodiment of the present application is:
[0048] The outer tube 1 is inserted into the patient's body, and then the driving rod 31 is pushed, so that the two sliding parts 211 pass through the outer tube 1 and drive the two clamping parts 212 to open relatively. In the process of the two sliding parts 211 passing through the outer tube 1, the blocking part 4 can continue to maintain a small gap with the two sliding parts 211;
[0049] Align the two clamping parts 212 with the wound in the patient's body, then pull the driving rod 31, the two sliding parts 211 are received in the outer tube 1 and drive the two clamping parts 212 to close relative to each other, thereby clamping the wound;
[0050] Then, the driving rod 31 is continuously pulled, and the connecting hook 32 is deformed and separated from the connecting shaft 33 under the pulling of the driving rod 31;
[0051] Then, the driving rod 31 is continuously pulled, and the slide cylinder 8 slides along with the driving rod 31 and reaches the bottom of the disassembly rod 71 and presses against the disassembly rod 71. The disassembly rod 71 pulls the hand-held portion 12 under the pressing action of the slide cylinder 8, and the hand-held portion 12 is separated from the receiving portion 11 under the pulling of the disassembly rod 71.
[0052] The hand-held portion 12 is then taken out, and the receiving portion 11 and the two clamp arms 21 are left in the patient's body.
[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A stable hemostatic clip, comprising an outer tube (1), a clamping assembly (2) and a driving assembly (3), wherein the clamping assembly (2) comprises two clamping arms (21) which can be relatively opened or closed and are arranged at the ends of the outer tube (1), and the driving assembly (3) is used to drive the two clamping arms (21) to move, characterized in that: The end of the outer tube (1) is provided with a stopper (4), and the stopper (4) is located between the two clamping arms (21).
2. A stable hemostatic clip according to claim 1, characterized in that: The two clamp arms (21) are bent in directions away from each other, the blocking portion (4) is arc-shaped, and the arc-shaped bending direction of the blocking portion (4) is the same as the direction from the outer tube (1) to the clamping assembly (2).
3. A stable hemostatic clip according to claim 1, characterized in that: There are two resisting parts (4), and the two resisting parts (4) are respectively located on both sides of the outer tube (1) in the radial direction, and the arrangement direction of the two resisting parts (4) is perpendicular to the arrangement direction of the two clamping arms (21).
4. A stable hemostatic clip according to any one of claims 1 to 3, characterized in that: The blocking portion (4) comprises a first portion (41) connected to the inner wall of the outer tube (1), and a second portion (42) arranged on the first portion (41), wherein the second portion (42) is located between the two clamping arms (21).
5. A stable hemostatic clip according to claim 4, characterized in that: The width of the first body (41) is greater than the width of the second body (42), and a first gap (5) for the clamp arm (21) to pass through is formed between the first body (41), the second body (42) and the inner wall of the outer tube (1).
6. A stable hemostatic clip according to any one of claims 1 to 3, characterized in that: The end of the outer tube (1) is also provided with a mounting plate (6), the length direction of the mounting plate (6) is the same as the axial direction of the outer tube (1), and the blocking portion (4) is arranged on the inner wall of the mounting plate (6) and is perpendicular to the mounting plate (6).
7. A stable hemostatic clip according to any one of claims 1 to 3, characterized in that: The clamping arm (21) comprises a sliding portion (211) slidably inserted into the outer tube (1), and a clamping portion (212) provided at one end of the sliding portion (211) away from the outer tube (1), and the blocking portion (4) is located between the two sliding portions (211).
8. A stable hemostatic clip according to any one of claims 1 to 3, characterized in that: The outer tube (1) comprises a receiving portion (11) and a hand-held portion (12); the two clamping arms (21) are arranged at one end of the receiving portion (11) away from the hand-held portion (12); the driving assembly (3) comprises a driving rod (31) slidably inserted into the hand-held portion (12); one end of the driving rod (31) penetrates into the receiving portion (11) and is connected to the two clamping arms (21).
9. A stable hemostatic clip according to claim 8, characterized in that: Two connecting hooks (32) are provided at the end of the driving rod (31), and connecting shafts (33) are passed through the ends of the two clamping arms (21), and the two connecting hooks (32) are respectively hooked on the two ends of the connecting shaft (33).
10. A stable hemostatic clip according to claim 9, characterized in that: The connecting hook (32) is deformably arranged, and a connecting tube (13) is arranged at one end of the receiving portion (11) close to the hand-held portion (12). The connecting tube (13) is inserted into the hand-held portion (12) and is detachably connected to the hand-held portion (12). The hemostatic clamp also includes a disassembly component (7) and a slide tube (8) arranged in the hand-held portion (12). The disassembly component (7) includes two disassembly rods (71) connected in a V-shape, and the ends of the two disassembly rods (71) are respectively connected to the inner wall of the hand-held portion (12). The slide tube (8) is sleeved on the driving rod (31) and a second gap is provided between the two. One of the disassembly rods (71) can be slidably inserted into the second gap.