A pincer and its jaws

Abstract

The application discloses a clamp removing forceps and a jaw thereof, which is used for untying a ligature clamp, the ligature clamp comprising a first clamp arm and a second clamp arm connected by a rotating hinge, the first clamp arm being provided with a first protruding column, and the second clamp arm being provided with a second protruding column; the jaw comprising an upper jaw blade, a lower jaw blade and a pushing piece, the upper jaw blade and the lower jaw blade being openable and closable, the upper jaw blade and the lower jaw blade being respectively provided with a limiting groove and a limiting table, the limiting groove being used for positioning the first clamp arm and the second clamp arm when the ligature clamp is closed, and the pushing piece being used for pushing the ligature clamp when the ligature clamp is opened and for clamping the first protruding column and the second protruding column into the limiting table of the upper jaw blade and the limiting table of the lower jaw blade respectively. The jaw of the clamp removing forceps is provided with the limiting table and the limiting groove in the jaw blade, and the pushing piece is used for assisting, so that the operation difficulty and the damage risk of the ligature clamp are reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a jaw for a clamp removal tool. It also relates to a clamp removal tool employing the aforementioned jaw. Background Technology

[0002] Currently, ligation clips are commonly used in surgery to temporarily or permanently close blood vessels. When using ligation clips, they require the assistance of clip-applying forceps for attachment and installation. The operator uses the forceps to remove the ligation clip from its container and delivers it through the surgical access channel to the designated ligation site, thus ligating the required tissue. Ligation clips can be permanently implanted or used for temporary tissue closure. Typically, if an incorrect ligation occurs or the clip needs to be removed after use, a clip-removing forceps is used to open and remove the clip from the body.

[0003] Traditional clamp removers consist of three parts: handle, bar, and jaws. The jaws have a special structure that allows them to open closed ligation clamps. However, traditional clamp removers have the following drawbacks.

[0004] First, before releasing the ligation clip, it is necessary to place the ligation clip at a certain angle inside the jaws of the clamp remover. Anti-slip grooves are added to the inner surfaces of the two clamp blades. However, in actual use, it is not easy to place the ligation clip stably in the ideal position for operation, and it cannot achieve the anti-slip function well when the body contains liquid.

[0005] Secondly, after the ligation clip is released, the opening of the clip is usually quite small, and it often remains attached to a blood vessel or tissue, or sometimes it falls directly into the body cavity during surgery. In the first case, because the opening angle of the ligation clip is small, it is easy to damage the blood vessel or tissue when removing the clip from it.

[0006] Therefore, how to provide a jaw for a degreasing pliers that solves the above-mentioned technical problems is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this application is to provide a jaw for removing clamps, which reduces the difficulty and risk of damage during clamp removal by setting a limiting platform and a limiting groove on the clamp blades and using a pushing member for assistance. Another purpose of this application is to provide a clamp removal tool.

[0008] To achieve the above objectives, this application provides a jaw for a clamping tool for releasing a ligation clamp. The ligation clamp includes a first clamping arm and a second clamping arm rotatably connected by a rotating pivot. The first clamping arm is provided with a first protrusion, and the second clamping arm is provided with a second protrusion.

[0009] The clamp jaws include an upper clamp blade, a lower clamp blade, and a pushing member. The upper clamp blade and the lower clamp blade are openable and closable. Both the upper clamp blade and the lower clamp blade are provided with a limiting groove and a limiting platform. The limiting groove is used to position the first clamp arm and the second clamp arm when the ligation clamp is closed. The pushing member is used to push the ligation clamp when the ligation clamp is opened and to lock the first protrusion and the second protrusion into the limiting platform of the upper clamp blade and the limiting platform of the lower clamp blade, respectively.

[0010] In some embodiments, the limiting platform is located at the first end of the upper clamp leaf and the lower clamp leaf, the pushing member is located at the second end of the upper clamp leaf and the lower clamp leaf, and the limiting groove is located between the first end and the second end of the upper clamp leaf and between the first end and the second end of the lower clamp leaf.

[0011] In some embodiments, the limiting platform is provided with a slot, the slot being adapted to the first protrusion and the second protrusion, and the slot opening in the direction toward the pushing member.

[0012] In some embodiments, the pushing member includes a push block and a push rod connected as one piece, the first clamping arm and / or the second clamping arm are provided with a movable groove, the push rod moves in the movable groove, and the push block is used to push the ligation clip.

[0013] In some embodiments, the jaws further include a jaw rotation shaft, and both the upper jaw blade and the lower jaw blade are provided with jaw rotation holes. The upper jaw blade and the lower jaw blade are rotatably connected by the jaw rotation shaft passing through the jaw rotation holes.

[0014] In some embodiments, the limiting groove is a square groove, which is formed by the bottom of the limiting groove and the first side surface and the second side surface of the limiting groove on both sides of the bottom of the limiting groove.

[0015] In some embodiments, the bottom of the limiting groove is an inclined surface, and the height of the first side and the second side of the limiting groove gradually decreases in the direction toward the limiting platform.

[0016] In some embodiments, the bottom of the limiting groove, the first side of the limiting groove, and the second side of the limiting groove are all provided with anti-slip surfaces.

[0017] This application also provides a clamping tool, including the jaws described above for clamping, and a handle and a rod body connected as one piece, wherein the rod body is connected to the jaws, and the handle is used to control the opening and closing of the upper jaw blade and the lower jaw blade.

[0018] In some embodiments, the upper jaw blade and / or the lower jaw blade are provided with jaw drive grooves, the handle is connected to the jaw drive grooves, and the handle controls the opening and closing of the upper jaw blade and the lower jaw blade through the jaw drive grooves.

[0019] Compared to the aforementioned background technology, the jaws of the clamp for removing ligation clamps provided in this application include an upper clamp blade, a lower clamp blade, and a pushing member, which are used to release ligation clamps. The ligation clamp includes a first clamp arm and a second clamp arm rotatably connected by a rotating pivot. The first clamp arm is provided with a first protrusion, and the second clamp arm is provided with a second protrusion. The upper and lower clamp blades are openable and closable. Both the upper and lower clamp blades are provided with a limiting groove and a limiting platform. The limiting groove is used to position the first and second clamp arms when the ligation clamp is closed. The pushing member is used to push the ligation clamp when it is opened and to engage the first and second protrusions into the limiting platforms of the upper and lower clamp blades, respectively.

[0020] During the operation of the jaws used for releasing the clamp, the jaws are first inserted near the ligation clamp to be released, so that the ligation clamp is positioned between the upper and lower clamp blades. Then, the upper and lower clamp blades are gradually closed. At this time, the ligation clamp is positioned by the limiting grooves of the upper and lower clamp blades, avoiding the problem of difficulty in operation caused by the ligation clamp tilting to the side. After the ligation clamp is released by the compression of the upper and lower clamp blades, the first and second clamping arms of the ligation clamp can open around the rotation pivot. Then, the pushing member pushes the opened ligation clamp, thereby causing the first protrusion to engage with the limiting platform of the upper clamp blade and the second protrusion to engage with the limiting platform of the lower clamp blade. At this time, the ligation clamp is connected to the upper and lower clamp blades, and the opening angle of the ligation clamp is maintained, avoiding the problem of easy damage to blood vessels or tissues caused by the small opening of the ligation clamp. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A schematic diagram illustrating the application of the jaws of a clamping pliers provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the ligation clip in the closed state provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the ligation clip in the open state provided in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the upper clamp blade provided in an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the pusher provided in the embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the jaws being prepared to release the ligature clip according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the jaws releasing the ligature clip provided in an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the structure of a clamp jaw in the prior art;

[0030] Figure 9 This is a schematic diagram of the existing technology where the jaws of the clamps are released and the ligature clip is tilted to the side.

[0031] in:

[0032] 11-Jaw rotation shaft, 12-Upper jaw blade, 13-Lower jaw blade, 14-Pushing component, 15-Rod body, 20-Ligation clip, 21-First clamping arm, 22-Second clamping arm, 23-Rotation hub, 24-First protrusion, 25-Second protrusion, 121-Limiting groove, 122-Limiting platform, 123-Jaw rotation hole, 124-Movable groove, 125-Jaw drive groove, 141-Push block, 142-Push rod, 211-First contact surface, 221-Second contact surface, 222-Third contact surface, 231-Fourth contact surface, 1211-Bottom of limiting groove, 1212-First side of limiting groove, 1213-Second side of limiting groove, 1221-Groove. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Please refer to Figures 1 to 9 ,in, Figure 1 This is an application diagram of the jaws of a clamping pliers provided in an embodiment of this application. Figure 2 This is a schematic diagram of the ligation clip in the closed state provided in an embodiment of this application. Figure 3 This is a schematic diagram of the ligation clip in the open state provided in an embodiment of this application. Figure 4 This is a schematic diagram of the upper clamp blade provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the pusher provided in the embodiments of this application. Figure 6This is a schematic diagram of the jaws being prepared to release the ligature clip according to an embodiment of this application. Figure 7 This is a schematic diagram illustrating the jaws releasing the ligature clip according to an embodiment of this application. Figure 8 This is a schematic diagram of the structure of a clamping jaw in the prior art. Figure 9 This is a schematic diagram of the existing technology where the jaws of the clamps are released and the ligature clip is tilted to the side.

[0036] In a first specific embodiment, this application provides a jaw for a clamp removal clamp, which mainly includes an upper clamp blade 12, a lower clamp blade 13 and a pushing member 14. The jaw is used to release the ligation clamp 20.

[0037] The ligation clip 20 includes a first clamping arm 21, a second clamping arm 22, and a rotating hub 23. The first clamping arm 21 and the second clamping arm 22 are rotatably connected through the rotating hub 23. A first protrusion 24 is provided on the first clamping arm 21, and a second protrusion 25 is provided on the second clamping arm 22.

[0038] like Figure 2 and Figure 3 As shown, the ligation clip 20 is a common product structure. The first clamping arm 21 and the second clamping arm 22 can be an elastic integral structure. The rotating hub 23 is a slot at the connection between the first clamping arm 21 and the second clamping arm 22, allowing the first clamping arm 21 and the second clamping arm 22 to bend and rotate around the connection. The second end of the second clamping arm 22 is connected to the first clamping arm 21, and the first end of the second clamping arm 22 is a bayonet, so that the first clamping arm 21 can be locked by the second clamping arm 22 after bending and rotating, at which point the ligation clip 20 is closed. The arc-shaped design of the first clamping arm 21 and the second clamping arm 22 can reliably clamp tissue or blood vessels. When the ligation clip 20 is squeezed by the upper jaw blade 12 and the lower jaw blade 13, the arc-shaped second clamping arm 22 deforms and tends to straighten, and the first clamping arm 21 is withdrawn from the second clamping arm 22, at which point the ligation clip 20 opens.

[0039] In this embodiment, the upper clamp leaf 12 and the lower clamp leaf 13 can be opened and closed, and their opposing inner surfaces are clamping surfaces, which clamp the ligation clip 20 when closed.

[0040] like Figure 4 As shown, both the upper clamp leaf 12 and the lower clamp leaf 13 are provided with limiting grooves 121. The limiting grooves 121 are located on the inner surfaces of both. The first clamp arm 21 and the second clamp arm 22 are positioned by the limiting grooves 121 when the ligation clip 20 is closed.

[0041] Both the upper clamp leaf 12 and the lower clamp leaf 13 are provided with limiting platforms 122. The limiting platform 122 of the upper clamp leaf 12 is adapted to the first protrusion 24, and the limiting platform 122 of the lower clamp leaf 13 is adapted to the second protrusion 25. The ligation clip 20 is pushed by the pushing member 14, so that the first protrusion 24 and the second protrusion 25 of the opened ligation clip 20 are respectively inserted into the limiting platform 122 of the upper clamp leaf 12 and the limiting platform 122 of the lower clamp leaf 13.

[0042] During the operation of the jaws used for removing the clamps, the jaws are first inserted near the ligation clamp 20 to be released, so that the ligation clamp 20 is positioned between the upper clamp blade 12 and the lower clamp blade 13. Then, the upper clamp blade 12 and the lower clamp blade 13 are gradually closed. At this time, the ligation clamp 20 is positioned by the limiting grooves 121 of the upper clamp blade 12 and the lower clamp blade 13, avoiding the problem of difficulty in operation caused by the ligation clamp 20 tilting to the side. After the ligation clamp 20 is released by the squeezing of the upper clamp blade 12 and the lower clamp blade 13, the ligation is removed. The first clamping arm 21 and the second clamping arm 22 of the clamp 20 can open around the rotation pivot 23, and then the pushing member 14 pushes the opened ligation clamp 20, thereby causing the first protrusion 24 to engage with the limiting platform 122 of the upper clamp leaf 12 and the second protrusion 25 to engage with the limiting platform 122 of the lower clamp leaf 13. At this time, the ligation clamp 20 is connected to the upper clamp leaf 12 and the lower clamp leaf 13, and the opening angle of the ligation clamp 20 is maintained, avoiding the problem of easy damage to blood vessels or tissues caused by the small opening of the ligation clamp 20.

[0043] Specifically, firstly, the jaws of this application have a limiting groove 121 for accommodating the ligation clip 20. This limiting groove 121 can effectively accommodate the first clamping arm 21 and the second clamping arm 22 of the ligation clip 20, allowing the ligation clip 20 to be placed at the position set by the jaws for release, and preventing the ligation clip 20 from slipping and causing damage to tissues or blood vessels. Secondly, the jaws of this application have limiting platforms 122 adapted to the first protrusion 24 and the second protrusion 25 of the ligation clip 20. When the ligation clip 20 is released, the first protrusion 24 and the second protrusion 25 of the ligation clip 20 are pushed to their respective limiting platforms 122, thereby opening the ligation clip 20 and maintaining a large angle while firmly fixing it within the jaws, solving the problem of easy damage to blood vessels or tissues caused by the small opening of the ligation clip 20.

[0044] refer to Figure 8 The image shows a common clamp jaw structure. Both clamp blades have anti-slip teeth. When releasing a ligation clamp from its closed position, these anti-slip teeth prevent the clamp from sliding. However, in practice, the effect is not ideal because they cannot effectively prevent longitudinal movement of the clamp, and the lateral anti-slip teeth cannot prevent lateral movement. (Reference) Figure 9The clamp is prone to tipping over. Because it's a minimally invasive procedure with a limited field of vision, if not careful, it's very easy to forcefully close the jaws when the clamp has tipped over, directly resulting in damage to the clamp and bodily injury. This is a very common problem reported in clinical practice.

[0045] The jaws of this application and Figure 8 , Figure 9 The basic principle is the same as that of the clamp jaws shown. The difference is that by setting a limiting platform 122 and a limiting groove 121 on the clamp blade and using a pushing member 14 for assistance, the ligation clip 20 can be clamped accurately and removed simultaneously without changing instruments or multiple operations, thus reducing the difficulty and risk of damage in removing the ligation clip 20.

[0046] It should be noted that the structures of the upper clamp leaf 12 and the lower clamp leaf 13 can be completely or approximately the same, which does not affect the implementation of this embodiment and should both fall within the scope of this embodiment. For example, for ease of explanation, the following description mainly uses the upper clamp leaf 12 as an example, and does not limit it to be implemented only by the upper clamp leaf 12 and not by the lower clamp leaf 13.

[0047] In some embodiments, the limiting platform 122 is located at the first end of the upper clamp leaf 12 and the lower clamp leaf 13, the pushing member 14 is located at the second end of the upper clamp leaf 12 and the lower clamp leaf 13, and the limiting groove 121 is located between the first end and the second end of the upper clamp leaf 12 and between the first end and the second end of the lower clamp leaf 13.

[0048] In this embodiment, the first end of the upper clamp blade 12 and the lower clamp blade 13 is the maximum opening of the jaws, and the limiting platform 122 adapted to the first protrusion 24 and the second protrusion 25 is located at this end; the second end of the upper clamp blade 12 and the lower clamp blade 13 is the minimum opening of the jaws, and the pushing member 14 for pushing the ligation clip 20 is located at this end; when the jaws clamp the ligation clip 20, the ligation clip 20 is positioned at the limiting groove 121 between the first end and the second end, and the ligation clip 20 is located between the maximum opening and the minimum opening.

[0049] When the ligation clip 20 is released, the first protrusion 24 and the second protrusion 25 of the ligation clip 20 will be pushed to the corresponding limiting platform 122. When the jaws open further, because the first protrusion 24 and the second protrusion 25 of the ligation clip 20 are connected to the limiting platform 122, the ligation clip 20 can open together with the jaws. Compared with the limiting platform 122 being located in other positions of the jaws, the ligation clip 20 can open to the maximum extent.

[0050] In some embodiments, the limiting platform 122 is provided with a slot 1221, which is adapted to the first protrusion 24 and the second protrusion 25, and the slot 1221 is open in the direction toward the pusher 14.

[0051] like Figure 7 As shown, in this embodiment, the first protrusion 24 and the second protrusion 25 are cylindrical structures, and the slot 1221 provided on the limiting platform 122 is an arc-shaped structure with an inner diameter slightly larger than the outer diameter of the cylindrical structure. When the pushing member 14 pushes the ligation clip 20 from the second end to the first end, the first protrusion 24 of the ligation clip 20 is inserted into the slot 1221 on the upper clamp leaf 12 facing the pushing member 14, and the second protrusion 25 of the ligation clip 20 is inserted into the slot 1221 on the lower clamp leaf 13 facing the pushing member 14, so that the first clamping arm 21 of the ligation clip 20 is connected to the upper clamp leaf 12, and the second clamping arm 22 of the ligation clip 20 is connected to the lower clamp leaf 13. The ligation clip 20 further opens along with the jaws and maintains the opening angle.

[0052] In some embodiments, the pushing member 14 includes a push block 141 and a push rod 142 connected as one piece, the first clamping arm 21 and / or the second clamping arm 22 are provided with a movable groove 124, the push rod 142 moves in the movable groove 124, and the push block 141 is used to push the ligation clip 20.

[0053] like Figure 5 As shown, in this embodiment, the pressing member 14 consists of two parts, which can be integrally formed or assembled separately, both of which should be within the scope of this embodiment; the movable groove 124 can be provided separately in the first clamping arm 21 or the second clamping arm 22, or the movable groove 124 can be provided simultaneously in the first clamping arm 21 and the second clamping arm 22, both of which should be within the scope of this embodiment; the push rod 142 moves in the movable groove 124, and the end face of the push block 141 is an arc-shaped surface, using the moving push rod 142 to drive the push block 141 to push the ligation clip 20.

[0054] In some embodiments, the jaws further include a jaw rotation shaft 11, and both the upper jaw blade 12 and the lower jaw blade 13 are provided with jaw rotation holes 123. The upper jaw blade 12 and the lower jaw blade 13 are rotatably connected by the jaw rotation shaft 11 passing through the jaw rotation holes 123.

[0055] In this embodiment, the upper clamp blade 12 and the lower clamp blade 13 open and close the jaws around the jaw rotation axis 11, thereby enabling the ligation clip 20 to be released and grasped without obstruction.

[0056] In some embodiments, the limiting groove 121 is a square groove, which is formed by the limiting groove bottom 1211 and the limiting groove first side surface 1212 and limiting groove second side surface 1213 on both sides of the limiting groove bottom 1211.

[0057] like Figure 6As shown, in this embodiment, when the jaws are closed, the bottom 1211 of the limiting groove of the upper jaw 12 contacts the first contact surface 211 and the third contact surface 222 of the ligation clip 20, and the bottom 1211 of the limiting groove of the lower jaw 13 contacts the second contact surface 221 of the ligation clip 20. While the jaws continue to close, they squeeze the ligation clip 20. The ligation clip 20 will deform during the process of being squeezed by the upper jaw 12 and the lower jaw 13, and will gradually be straightened. Since the first clamping arm 21 of the ligation clip 20 is shorter than the second clamping arm 22, the first clamping arm 21 will disengage from the second clamping arm 22 during the straightening process, thereby realizing the release of the ligation clip 20.

[0058] In some embodiments, the bottom 1211 of the limiting groove is an inclined surface, and the height of the first side 1212 and the second side 1213 of the limiting groove gradually decreases in the direction toward the limiting platform 122.

[0059] In this embodiment, the limiting groove 121 of the clamp jaw gradually deepens from the first end to the second end, and the inclined bottom of the limiting groove 1211 can guide the ligation clip 20, so that the ligation clip 20 can easily enter the clamp jaw at the first end and be firmly fixed at the second end.

[0060] In some embodiments, the bottom 1211 of the limiting groove, the first side 1212 of the limiting groove, and the second side 1213 of the limiting groove are all provided with anti-slip surfaces.

[0061] In this embodiment, the jaws not only have a limiting platform 122 and a limiting groove 121 on the jaw blades, but also have an anti-slip surface on the limiting groove 121, thereby further enhancing the positioning effect of the ligation clip 20; the anti-slip surface can be a textured surface or other forms, which should also be within the scope of this embodiment.

[0062] In one specific method of using the jaws:

[0063] When the jaws of the clamp enter the body and contact the ligation clip 20 that has been closed on the blood vessel or tissue, the first clamp arm 21 of the ligation clip 20 will fall into the limiting groove 121 of the upper clamp leaf 12, and the second clamp arm 22 of the ligation clip 20 will fall into the limiting groove 121 of the lower clamp leaf 13. The sides of the clamp arms will be restricted by the first side 1212 and the second side 1213 of the limiting groove, respectively, so that they will not tip over inside the jaws, thus avoiding the common tipping problem caused by clamp removal.

[0064] When the ligation clip 3 is released by the upper clamp blade 12 and the lower clamp blade 13, the first protrusion 24 and the second protrusion 25 of the ligation clip 20 will first contact the inner surfaces of the upper clamp blade 12 and the lower clamp blade 13 under the action of elastic force; at the same time, the pushing member 14 will move towards the ligation clip 20, and the pushing block 141 will contact the fourth contact surface 231 of the ligation clip 20, thereby pushing the ligation clip 20 towards the limiting table 122; until the first protrusion 24 and the second protrusion 25 of the ligation clip 20 are released. 4. The second protrusion 25 enters the slot 1221 of the upper clamp leaf 12 and the lower clamp leaf 13 upper limit stage 122 respectively. At this time, the clamp jaws are open, and the push block 141 pushes the ligation clip 20 tightly. The ligation clip 20 is firmly opened in the clamp jaws, making it easy to remove the ligation clip 20 from the tissue or blood vessel without tearing or scraping the tissue or blood vessel. At the same time, the ligation clip 20 is fixed and stable in the clamp jaws, avoiding falling into the human body and the need to change instruments or perform additional operations for clamping.

[0065] When the clamp is removed from the body through a minimally invasive channel, the jaws only need to be slightly closed. The entire clamp removal process requires only one step and is precise, efficient, and convenient.

[0066] This application also provides a clamp remover, including the jaws described above for clamp removers, which can replace the jaws of existing clamp removers, and the clamp remover should have all the beneficial effects of the jaws described above.

[0067] More specifically, the clamp also includes a handle and a rod 15 connected as one piece. The rod 15 is connected to the jaws, and the handle is used to control the opening and closing of the upper jaw blade 12 and the lower jaw blade 13.

[0068] In this embodiment, the upper jaw 12 and the lower jaw 13 are hinged at one end of the rod body 15 via the jaw rotation shaft 11. The pushing member 14 passes through the rod body 15 into the upper jaw 12 and the lower jaw 13. The handle can control the opening and closing of the upper jaw 12 and the lower jaw 13 through the core rod or pull wire in the rod body 15.

[0069] In some embodiments, the upper jaw 12 and / or the lower jaw 13 are provided with jaw drive grooves 125, and the handle is connected to the jaw drive grooves 125. The handle controls the opening and closing of the upper jaw 12 and the lower jaw 13 through the jaw drive grooves 125.

[0070] In this embodiment, the jaw drive groove 125 is inclined, and the core rod in the handle drive rod body 15 slides in the jaw drive groove 125. The handle drives the core rod to move, and the core rod then drives the upper jaw blade 12 and / or the lower jaw blade 13 to move through the jaw drive groove 125.

[0071] It should be noted that the jaw drive groove 125 can be provided on the upper jaw blade 12, or on the lower jaw blade 13, or both the upper jaw blade 12 and the lower jaw blade 13 can be provided with the jaw drive groove 125, all of which should fall within the scope of this embodiment; the upper jaw blade 12 can be movable while the lower jaw blade 13 is stationary, or the upper jaw blade 12 can be stationary while the lower jaw blade 13 is movable, or both the upper jaw blade 12 and the lower jaw blade 13 can be movable simultaneously, all of which should fall within the scope of this embodiment.

[0072] It should be noted that many of the components mentioned in this application are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0073] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0074] The foregoing has provided a detailed description of the clamping pliers and their jaws provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A jaw for removing clamps, characterized in that, The clamp (20) is used to release the ligation clip (20). The ligation clip (20) includes a first clamping arm (21) and a second clamping arm (22) rotatably connected by a rotating pivot (23). The first end of the second clamping arm (22) is a bayonet so that the first clamping arm (21) can be locked by the second clamping arm (22) after bending and rotating. The first clamping arm (21) is provided with a first protrusion (24), and the second clamping arm (22) is provided with a second protrusion (25). The first clamping arm (21) and the second clamping arm (22) are arc-shaped structures. The clamp jaws include an upper clamp blade (12), a lower clamp blade (13), and a pusher (14). The upper clamp blade (12) and the lower clamp blade (13) are openable and closable. Both the upper clamp blade (12) and the lower clamp blade (13) are provided with a limiting groove (121) and a limiting platform (122). The limiting groove (121) is used to position the first clamp arm (21) and the second clamp arm (22) when the ligation clamp (20) is closed. The upper clamp blade (12) and the lower clamp blade (13) squeeze the ligation clamp (20) so that the first clamp arm (21) is withdrawn from the second clamp arm (22). The pusher (14) is used to push the ligation clip (20) when the ligation clip (20) is opened and to insert the first protrusion (24) and the second protrusion (25) into the limiting platform (122) of the upper clamp (12) and the limiting platform (122) of the lower clamp (13), respectively.

2. The jaws according to claim 1, characterized in that, The limiting platform (122) is located at the first end of the upper clamp leaf (12) and the lower clamp leaf (13), the pushing member (14) is located at the second end of the upper clamp leaf (12) and the lower clamp leaf (13), and the limiting groove (121) is located between the first end and the second end of the upper clamp leaf (12) and between the first end and the second end of the lower clamp leaf (13).

3. The jaws according to claim 1, characterized in that, The limiting platform (122) is provided with a slot (1221), which is adapted to the first protrusion (24) and the second protrusion (25), and the slot (1221) is open in the direction toward the pusher (14).

4. The jaws according to claim 1, characterized in that, The pushing member (14) includes a push block (141) and a push rod (142) connected as one piece. The first clamping arm (21) and / or the second clamping arm (22) are provided with a movable groove (124). The push rod (142) moves in the movable groove (124). The push block (141) is used to push the ligation clip (20).

5. The jaws according to claim 1, characterized in that, The jaws also include a jaw rotation shaft (11), and the upper jaw blade (12) and the lower jaw blade (13) are both provided with jaw rotation holes (123). The upper jaw blade (12) and the lower jaw blade (13) are rotatably connected by the jaw rotation shaft (11) passing through the jaw rotation holes (123).

6. The jaws according to claim 2, characterized in that, The limiting groove (121) is a square groove, which is formed by the bottom of the limiting groove (1211) and the first side surface (1212) and the second side surface (1213) of the limiting groove on both sides of the bottom of the limiting groove (1211).

7. The jaws according to claim 6, characterized in that, The bottom of the limiting groove (1211) is an inclined surface, and the height of the first side (1212) and the second side (1213) of the limiting groove gradually decreases in the direction toward the limiting platform (122).

8. The jaws according to claim 6, characterized in that, The bottom (1211) of the limiting groove, the first side (1212) of the limiting groove, and the second side (1213) of the limiting groove are all provided with anti-slip surfaces.

9. A type of clamp remover, characterized in that, The clamp includes the jaws for removing clamps as claimed in any one of claims 1 to 8, and further includes a handle and a rod (15) connected as one piece, the rod (15) being connected to the jaws, and the handle being used to control the opening and closing of the upper clamp blade (12) and the lower clamp blade (13).

10. The clamp remover according to claim 9, characterized in that, The upper jaw (12) and / or the lower jaw (13) are provided with jaw drive grooves (125), the handle is connected to the jaw drive grooves (125), and the handle controls the opening and closing of the upper jaw (12) and the lower jaw (13) through the jaw drive grooves (125).

Images