Clamping assembly and hemostatic clip

Abstract

The embodiment of the utility model provides a clamping assembly and a hemostatic clip, and relates to the technical field of medical instruments. The clamping assembly comprises a clamping seat, a middle column, a first clamping piece and a second clamping piece, the middle column is arranged on the clamping seat, and the first clamping piece and the second clamping piece are rotatably connected to the middle column, so that the clamping assembly has a closed state and an open state; in the closed state, the far end of the middle column, the far end of the first clamping piece and the far end of the second clamping piece are arranged at intervals in the extending direction of the middle column at the same time, and the far end of the middle column is located on the side, close to the clamping base, of the far end of the first clamping piece and the far end of the second clamping piece. In the open state, the far end of the middle column and the far end of the first clamping piece can abut against the tissue at the same time, or the far end of the middle column and the far end of the second clamping piece can abut against the tissue at the same time. According to the clamping assembly, the mucous membrane damage problem caused by the fact that the middle column is too long can be avoided, the punching risk is reduced, and the clamping safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, relate to a clamping assembly and hemostatic clamp. BACKGROUND

[0002] In medical operation, three-arm clamp is a common medical instrument, mainly used for clamping tissue. This instrument is usually composed of two clamping pieces and a column in the middle. In the use process, the tissue to be clamped is placed in the middle by opening the two clamping pieces, and then the tissue is clamped by closing the clamping pieces. This instrument has a wide application in many operations, such as endoscopic surgery, minimally invasive surgery, etc.

[0003] However, the existing three-arm clamp has the same height of the two clamping pieces and the middle column in the closed state, so that the height of the distal end of the middle column is higher than that of the distal end of the two clamping pieces in the open state, i.e. after the two clamping pieces are opened, which causes the distal end of the middle column to preferentially abut the mucosa tissue in the actual clamping process, thereby piercing the mucosa and causing adverse problems such as perforation. SUMMARY

[0004] The utility model aims at providing a clamping assembly and hemostatic clamp, which can avoid the problem of mucosa damage caused by the excessive length of the middle column, reduce the risk of perforation, and improve the safety of clamping.

[0005] The embodiment of the utility model is implemented as follows:

[0006] In a first aspect, the utility model provides a clamping assembly, comprising:

[0007] a clamping seat;

[0008] a middle column, which is arranged in the clamping seat;

[0009] a first clamping piece and a second clamping piece, which are rotatably connected to the middle column, so that the clamping assembly has a closed state and an open state;

[0010] In the closed state, the distal end of the middle column is simultaneously arranged with the distal end of the first clamping piece and the distal end of the second clamping piece along the extension direction of the middle column, and the distal end of the middle column is located on the side close to the clamping seat of the distal end of the first clamping piece and the distal end of the second clamping piece.

[0011] In the open state, the distal end of the middle column and the distal end of the first clamping piece can simultaneously abut the tissue, or the distal end of the middle column and the distal end of the second clamping piece can simultaneously abut the tissue.

[0012] In an optional embodiment, the included angle between the first clamping piece and the middle column is 0-90° in the open state, and the included angle between the second clamping piece and the middle column is 0-90°.

[0013] In an optional embodiment, the difference between the height of the first clamping piece and the height of the middle column is 1-3 mm in the closed state, and the difference between the height of the second clamping piece and the height of the middle column is 1-3 mm.

[0014] In an optional embodiment, the middle column is provided with a first hook and a second hook, the first hook and the second hook are oppositely arranged, and the first hook is arranged to extend away from the second hook, and the second hook is arranged to extend away from the first hook.

[0015] In an optional embodiment, the first clamping piece is provided with a first fixing hole for cooperating with the first hook.

[0016] The second clamping piece is provided with a second fixing hole for cooperating with the second hook.

[0017] In an optional embodiment, the end of the first hook is located in the first fixing hole, and the end of the second hook is located in the second fixing hole in the closed state.

[0018] In an optional embodiment, the number of the first hook and the second hook is multiple, and the multiple first hooks and the multiple second hooks are arranged at intervals along the extension direction of the middle column.

[0019] The number of the first fixing hole and the second fixing hole is multiple, and the multiple first fixing holes and the multiple second fixing holes are arranged at intervals along the extension direction of the middle column, and the multiple first fixing holes and the multiple first hooks are one-to-one corresponding cooperation, and the multiple second fixing holes and the multiple second hooks are one-to-one corresponding cooperation.

[0020] In an optional embodiment, the multiple first hooks and the multiple second hooks are one-to-one corresponding arrangement.

[0021] In an optional embodiment, the multiple first hooks and the multiple second hooks are arranged in sequence and staggered along the extension direction of the middle column.

[0022] In an optional embodiment, the first hook and the second hook are located at the distal end of the middle column.

[0023] In an optional embodiment, the intermediate column is further provided with a first reinforcing tooth and a second reinforcing tooth, the first reinforcing tooth is arranged opposite to the second reinforcing tooth, the first reinforcing tooth is arranged in the extension direction of the intermediate column and is located on the side of the first hook tooth close to the clamping seat, and the second reinforcing tooth is arranged in the extension direction of the intermediate column and is located on the side of the second hook tooth close to the clamping seat.

[0024] The length of the first reinforcing tooth is less than the length of the first hook tooth, and the length of the second reinforcing tooth is less than the length of the second hook tooth.

[0025] In a second aspect, the utility model provides a hemostat, including the clamping assembly of any preceding embodiment.

[0026] The utility model discloses beneficial effects include:

[0027] The clamping assembly includes a clamping seat, an intermediate column, a first clamping piece and a second clamping piece. The intermediate column is arranged in the clamping seat. The first clamping piece and the second clamping piece are rotatably connected to the intermediate column, so that the clamping assembly has a closed state and an open state. In the closed state, the distal end of the intermediate column is arranged in the extension direction of the intermediate column and is located on the side of the distal end of the first clamping piece and the distal end of the second clamping piece close to the clamping seat. In the open state, the distal end of the intermediate column and the distal end of the first clamping piece can simultaneously abut on the tissue, or the distal end of the intermediate column and the distal end of the second clamping piece can simultaneously abut on the tissue.

[0028] That is, in the closed state of the clamping assembly, the distal end of the intermediate column is located in the assembly space enclosed by the first clamping piece and the second clamping piece. It can also be understood that when the clamping assembly is placed vertically, the height of the distal end of the intermediate column is lower than the height of the distal end of the first clamping piece and the height of the distal end of the second clamping piece. In this way, in the open state of the clamping assembly, the distal end of the intermediate column and the distal end of the first clamping piece can simultaneously abut on the tissue, or the distal end of the intermediate column and the distal end of the second clamping piece can simultaneously abut on the tissue, thereby avoiding the problem of mucosal injury caused by the distal end of the intermediate column first contacting the mucosal tissue due to the excessive length of the intermediate column, thereby reducing the risk of perforation and improving the safety of clamping.

[0029] The hemostat includes a clamping assembly, which has all the beneficial effects of the clamping assembly. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0031] Figure 1 The structure diagram of the hemostatic clamp provided by the embodiment of the present application is shown in the figure.

[0032] Figure 2 The structure diagram of the release assembly provided by the embodiment of the present application is shown in the figure.

[0033] Figure 3 The structure diagram of the clamping assembly in the open state provided by the embodiment of the present application is shown in the figure.

[0034] Figure 4 The structure diagram of the clamping assembly in the closed state provided by the embodiment of the present application is shown in the figure.

[0035] Figure 5 The structure diagram of the clamping assembly in the closed state provided by the embodiment of the present application is shown in the figure.

[0036] Figure 6 The structure diagram of the clamping assembly in the open state provided by another embodiment of the present application is shown in the figure.

[0037] Figure 7 The structure diagram of the clamping assembly in the closed state provided by another embodiment of the present application is shown in the figure.

[0038] Icon: 1000-hemostatic clamp; 100-clamping assembly; 10-clamping seat; 20-intermediate column; 21-first hook tooth; 22-second hook tooth; 23-first reinforcing tooth; 24-second reinforcing tooth; 30-first clamping piece; 31-first fixed hole; 32-first sliding groove; 40-second clamping piece; 41-second fixed hole; 42-second sliding groove; 200-release assembly; 210-first release piece; 220-second release piece; 230-first sliding pin; 240-second sliding pin; 300-handle assembly; 310-handle frame; 320-first handle sliding block; 330-second handle sliding block; 340-operating wire; 350-spring tube. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0041] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the product of the present application is usually placed during use, 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", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical", etc. do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0044] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] As described in the background, the existing three-arm clamp is in a closed state, the height of the two side clamps is the same as the height of the middle column, so that the three-arm clamp is in an open state, that is, after the two side clamps are opened, the height of the distal end of the middle column is higher than the height of the distal end of the two side clamps, resulting in that in the actual clamping of the wound, the distal end of the middle column will preferentially abut the mucosa, thereby piercing the mucosa, resulting in adverse problems such as perforation.

[0046] Based on this, please refer to Figures 1-5 The embodiment of the utility model provides a clamping assembly 100 and hemostat 1000 can effectively improve the above-mentioned technical problem, that is, it can avoid the mucosa damage problem caused by the middle column 20 being too long, reduce the risk of perforation, and improve the safety of clamping. The clamping assembly 100 and hemostat 1000 will be described in detail below.

[0047] Please refer to Figure 1 And Figure 2 , Figure 1 The structure diagram of the hemostat 1000 provided by the embodiment, Figure 2 The structure diagram of the release assembly 200 provided by the embodiment, in combination with Figure 1 And Figure 2 The hemostat 1000 includes a clamping assembly 100, a release assembly 200, and a handle assembly 300, the clamping assembly 100, the release assembly 200, and the handle assembly 300 are connected in sequence, the clamping assembly 100 is used for clamping the tissue, and the handle assembly 300 can drive the clamping assembly 100 to move through the release assembly 200, so that the clamping assembly 100 can be opened and closed, thereby realizing the clamping operation on the tissue.

[0048] Specifically, please refer to Figure 3 And Figure 4 , Figure 3 The structure diagram of the clamping assembly 100 in the open state provided by the embodiment, Figure 4 The structure diagram of the clamping assembly 100 in the closed state provided by the embodiment from the first perspective, in combination with Figure 3 And Figure 4The clamping assembly 100 comprises a clamping base 10, an intermediate column 20, a first clamping piece 30 and a second clamping piece 40. The intermediate column 20 is arranged on the clamping base 10, and the first clamping piece 30 and the second clamping piece 40 are rotatably connected to the intermediate column 20, so that the clamping assembly 100 has a closed state and an open state. In the closed state, the distal end of the intermediate column 20 is arranged at intervals with the distal end of the first clamping piece 30 and the distal end of the second clamping piece 40 along the extension direction of the intermediate column 20, and the distal end of the intermediate column 20 is located on the side of the distal end of the first clamping piece 30 and the distal end of the second clamping piece 40 close to the clamping base 10. In the open state, the distal end of the intermediate column 20 and the distal end of the first clamping piece 30 can simultaneously abut on the tissue, or the distal end of the intermediate column 20 and the distal end of the second clamping piece 40 can simultaneously abut on the tissue.

[0049] That is, in the closed state of the clamping assembly 100, the distal end of the intermediate column 20 is located in the assembly space enclosed by the first clamping piece 30 and the second clamping piece 40. It can also be understood that when the clamping assembly 100 is placed vertically, the height of the distal end of the intermediate column 20 is lower than the height of the distal end of the first clamping piece 30 and the height of the distal end of the second clamping piece 40. In this way, in the open state of the clamping assembly 100, the distal end of the intermediate column 20 and the distal end of the first clamping piece 30 can simultaneously abut on the tissue, or the distal end of the intermediate column 20 and the distal end of the second clamping piece 40 can simultaneously abut on the tissue during cooperation with the first clamping piece 30 or the second clamping piece 40 and moving towards the tissue, thereby avoiding the problem of mucosal injury caused by the distal end of the intermediate column 20 first contacting the mucosal tissue due to the excessive length of the intermediate column 20, thereby reducing the risk of perforation and improving the safety of clamping.

[0050] It should be noted that the extension direction of the intermediate column 20 mentioned in the above content is the A direction shown in the figure. Figure 3

[0051] In addition, it should be noted that in the actual operation of clamping the tissue by the clamping assembly 100, the intermediate column 20 is usually first cooperated with one of the first clamping piece 30 and the second clamping piece 40 to clamp the tissue on one side of the wound, and then the endocystoscope is moved to move the clamped tissue on one side of the wound to the other side of the wound (which can reduce the size of the wound), and then the intermediate column 20 is cooperated with the other one of the first clamping piece 30 and the second clamping piece 40 to clamp the tissue on the other side of the wound to complete the clamping and hemostasis operation on the entire tissue.

[0052] In combination with Figures 2-4 ​, specifically, the release assembly 200 includes a first release member 210, a second release member 220, a first sliding pin 230, and a second sliding pin 240, the first release member 210 and the second release member 220 are movably arranged in the holder 10, the first sliding pin 230 is arranged at the distal end of the first release member 210, and the second sliding pin 240 is arranged at the distal end of the second release member 220; and the first clamping piece 30 is provided with a first sliding groove 32, the second clamping piece 40 is provided with a second sliding groove 42, the first sliding pin 230 is slidably arranged in the first sliding groove 32, and the second sliding pin 240 is slidably arranged in the second sliding groove 42.

[0053] It is easy to understand that the handle assembly 300 can drive the first release member 210 and the second release member 220 to move, so as to drive the first sliding pin 230 to slide in the first sliding groove 32 and the second sliding pin 240 to slide in the second sliding groove 42, and then drive the first clamping piece 30 and the second clamping piece 40 to rotate relative to the middle column 20, so as to realize the opening and closing of the clamping assembly 100.

[0054] Please continue to combine Figure 1 Further, the handle assembly 300 includes a handle frame 310, a first handle sliding block 320, a second handle sliding block 330, and two operation wires 340, the first handle sliding block 320 and the second handle sliding block 330 are slidably arranged in the handle frame 310, and the first handle sliding block 320 is connected with the first release member 210 through one of the operation wires 340, and the second handle sliding block 330 is connected with the second release member 220 through the other operation wire 340.

[0055] It is easy to understand that by sliding the first handle sliding block 320 on the handle frame 310, the first release member 210 is pulled to move through the operation wire 340, and the rotation of the first clamping piece 30 is realized through the cooperation of the first sliding pin 230 and the first sliding groove 32; similarly, by sliding the second handle sliding block 330 on the handle frame 310, the second release member 220 is pulled to move through the operation wire 340, and the rotation of the second clamping piece 40 is realized through the cooperation of the second sliding pin 240 and the second sliding groove 42.

[0056] Further, in the embodiment, the handle assembly 300 further includes a spring tube 350, the proximal end of the holder 10 is provided with a support seat, the distal end of the spring tube 350 is connected with the proximal end of the support seat, and the operation wire 340 is arranged in the spring tube 350.

[0057] For those skilled in the art, it is easy to know that the release assembly 200 and the handle assembly 300 further include other structures which can cooperate with the clamping assembly 100 to complete the pushing, opening, clamping, releasing or disengaging operations of the hemostatic clip, which will not be described here.

[0058] Please continue to combineFigure 3 It should be noted that the open state of the clamping assembly 100 can be understood as the state in which the first clamping piece 30 and the second clamping piece 40 are both at the maximum rotation angle, that is, at this time, the first sliding pin 230 is located at the distal end of the first sliding groove 32, and the second sliding pin 240 is located at the distal end of the second sliding groove 42. Therefore, in order to ensure that the distal end of the first clamping piece 30, the distal end of the middle column 20 and the distal end of the second clamping piece 40 can be in the same plane when the clamping assembly 100 is in the open state, it is necessary to control the rotation angle of the first clamping piece 30 and the second clamping piece 40 relative to the middle column 20.

[0059] Therefore, optionally, the included angle θ1 between the first clamping piece 30 and the middle column 20 is 0°-90°, and the included angle θ2 between the second clamping piece 40 and the middle column 20 is 0°-90° when the clamping assembly 100 is in the open state; for example, θ1 and θ2 can be 10°, 20°, 30°, 40°, 50°, 60°, 70° or 80°, etc., wherein θ1 and θ2 do not include 0° and 90°.

[0060] Further, it should be noted that in order to ensure that the distal end of the first clamping piece 30, the distal end of the middle column 20 and the distal end of the second clamping piece 40 can be in the same plane when the clamping assembly 100 is in the open state, it is also necessary to control the distance between the distal end of the first clamping piece 30 and the distal end of the middle column 20, and the distance between the distal end of the second clamping piece 40 and the distal end of the middle column 20.

[0061] Therefore, please continue to combine Figure 4 Optionally, the difference between the height H1 of the first clamping piece 30 and the height H2 of the middle column 20 is 1mm-3mm, and the difference between the height H3 of the second clamping piece 40 and the height H2 of the middle column 20 is 1mm-3mm when the clamping assembly 100 is in the closed state. For example, the difference in height can be 1mm, 1.5mm, 2mm, 2.5mm or 3mm, etc.

[0062] It can also be understood that the distance between the distal end of the first clamping piece 30 and the distal end of the middle column 20, and the distance between the distal end of the second clamping piece 40 and the distal end of the middle column 20 are both 1mm-3mm.

[0063] It should be noted that the height mentioned above can be understood as Figure 4The distance between the top of the first clamping piece 30, the top of the second clamping piece 40 and the top of the middle column 20 to the bottom of the clamping seat 10 when the clamping assembly 100 is vertically placed and in the closed state; it can also be understood that, with the bottom surface of the clamping seat 10 as the reference surface, the difference between the height at which the top of the first clamping piece 30 is located and the height at which the top of the middle column 20 is located, and the difference between the height at which the top of the second clamping piece 40 is located and the height at which the top of the middle column 20 is located.

[0064] Please continue to combine Figure 3 The middle column 20 is provided with a first hook 21 and a second hook 22, the first hook 21 and the second hook 22 are oppositely arranged, and the first hook 21 extends away from the second hook 22, and the second hook 22 extends away from the first hook 21. By arranging the first hook 21 and the second hook 22, the tissue can be effectively hooked during actual clamping, and the tissue is not easy to slip off.

[0065] In order to better hook the tissue, the first hook 21 and the second hook 22 are located at the distal end of the middle column 20, so that when the distal end of the middle column 20 is in contact with the tissue, the first hook 21 and the second hook 22 on both sides continue to hook the tissue, thereby improving the clamping stability.

[0066] Please refer to Figure 5 , Figure 5 The second perspective view of the clamping assembly 100 provided in the embodiment is in the closed state, combined with Figure 4 and Figure 5 It should be noted that, due to the height difference between the middle column 20 and the first clamping piece 30 and the second clamping piece 40, in order to enable the first clamping piece 30 and the second clamping piece 40 to be fixed in cooperation with the middle column 20 in the closed state, in the embodiment, the first clamping piece 30 is provided with a first fixing hole 31, and the first fixing hole 31 is used for cooperating with the first hook 21; the second clamping piece 40 is provided with a second fixing hole 41, and the second fixing hole 41 is used for cooperating with the second hook 22.

[0067] That is, in the closed state of the clamping assembly 100, the first clamping piece 30 and the second clamping piece 40 can be engaged and fixed with the middle column 20 through the cooperation of the fixing hole and the hook, so that the clamping assembly 100 is not easy to slip off during clamping, the stability of clamping is enhanced, and the problem of tissue slipping off due to the loose engagement of the first clamping piece 30 and the second clamping piece 40 with the middle column 20 is avoided.

[0068] Further, in the closed state, the end of the first hook tooth 21 is located in the first fixed hole 31, and the end of the second hook tooth 22 is located in the second fixed hole 41. That is, the first hook tooth 21 will not protrude from the first fixed hole 31, and the second hook tooth 22 will not protrude from the second fixed hole 41, which can meet the requirement that the clamping assembly 100 passes through the endoscope channel, and avoid the influence of the first hook tooth 21 or the second hook tooth 22 on the endoscope channel or interference with other structures in the closed state.

[0069] In order to further improve the clamping effect and improve the adaptability of the clamping assembly 100, the number of the first hook tooth 21 and the second hook tooth 22 can be set to multiple, and the multiple first hook teeth 21 and the multiple second hook teeth 22 are arranged in the extension direction of the middle column 20. Similarly, the number of the first fixed hole 31 and the second fixed hole 41 is multiple, and the multiple first fixed holes 31 and the multiple second fixed holes 41 are arranged in the extension direction of the middle column 20, and the multiple first fixed holes 31 and the multiple first hook teeth 21 are one-to-one corresponding and matched, and the multiple second fixed holes 41 and the multiple second hook teeth 22 are one-to-one corresponding and matched.

[0070] It should be noted that in the embodiment, the number of the first hook tooth 21 and the second hook tooth 22 is two, of course, in other embodiments, the number of the first hook tooth 21 and the second hook tooth 22 can be three, four or five, etc., and the specific number needs to be determined according to the design requirement and the actual clamping tissue condition.

[0071] In combination with Figure 3 Further, in the embodiment, the multiple first hook teeth 21 and the multiple second hook teeth 22 are one-to-one corresponding, that is, the height of the corresponding first hook tooth 21 and the height of the second hook tooth 22 are the same, which can better fix the first clamping piece 30 and the second clamping piece 40.

[0072] Of course, in some other embodiments, the multiple first hook teeth 21 and the multiple second hook teeth 22 can also be arranged in other arrangements on the middle column 20.

[0073] For example, please refer to Figure 6 and Figure 7 , Figure 6 the structure schematic view of the clamping assembly in the open state provided by another embodiment, Figure 7 the structure schematic view of the clamping assembly in the closed state provided by another embodiment, in combination with Figure 6 and Figure 7 In another embodiment, the multiple first hook teeth 21 and the multiple second hook teeth 22 are arranged in the extension direction of the middle column 20 in sequence.

[0074] AsFigure 6 As shown, through the staggered arrangement, the first and second hooks 21 and 22 can fix the first and second clamping pieces 30 and 40 while adapting to different tissues, and can better utilize the staggered first and second hooks 21 and 22 to pick up the tissue according to the actual clamped tissue, avoid slipping, and further improve the clamping stability.

[0075] Please continue to combine Figure 3 In the embodiment, the intermediate column 20 is further provided with a first reinforcing tooth 23 and a second reinforcing tooth 24, the first reinforcing tooth 23 is oppositely arranged with the second reinforcing tooth 24, the first reinforcing tooth 23 is arranged in the extension direction of the intermediate column 20 and located at the side of the first hook 21 close to the clamp seat 10, and the second reinforcing tooth 24 is arranged in the extension direction of the intermediate column 20 and located at the side of the second hook 22 close to the clamp seat 10, wherein the length of the first reinforcing tooth 23 is less than the length of the first hook 21, and the length of the second reinforcing tooth 24 is less than the length of the second hook 22.

[0076] It is easy to understand that the sizes of the first and second reinforcing teeth 23 and 24 are smaller than the sizes of the first and second hooks 21 and 22, which can be understood as small teeth, and through the arrangement of the first and second reinforcing teeth 23 and 24, the gripping force can be further increased during the clamping of the tissue, thereby further improving the clamping stability and effect.

[0077] In summary, the embodiment of the utility model provides a kind of clamping assembly 100 and hemostat 1000, clamping assembly 100 includes clamp seat 10, intermediate column 20, first clamping piece 30 and second clamping piece 40, intermediate column 20 is arranged in clamp seat 10, first clamping piece 30 and second clamping piece 40 are rotatably connected to intermediate column 20, to make clamping assembly 100 have closed state and open state;Wherein, in the case of closed state, the distal end of intermediate column 20 is simultaneously with the distal end of first clamping piece 30 and the distal end of second clamping piece 40, and is arranged in the extension direction of intermediate column 20, and the distal end of intermediate column 20 is located at the distal end of first clamping piece 30 and the distal end of second clamping piece 40 close to clamp seat 10 side;In the case of open state, the distal end of intermediate column 20 and the distal end of first clamping piece 30 can be simultaneously abutted on tissue, or the distal end of intermediate column 20 and the distal end of second clamping piece 40 can be simultaneously abutted on tissue.

[0078] It can be understood that, in the case that the clamping assembly 100 is in the closed state, the distal end of the intermediate column 20 is located in the assembly space enclosed by the first clamp 30 and the second clamp 40; it can also be understood that, when the clamping assembly 100 is placed vertically, the height of the distal end of the intermediate column 20 is lower than the height of the distal end of the first clamp 30 and the height of the distal end of the second clamp 40. Thus, in the case that the clamping assembly 100 is in the open state, the distal end of the intermediate column 20 and the distal end of the first clamp 30 can simultaneously abut on the tissue during the cooperation of the intermediate column 20 with the first clamp 30 or the second clamp 40 and the movement of the intermediate column 20 towards the tissue, or the distal end of the intermediate column 20 and the distal end of the second clamp 40 can simultaneously abut on the tissue, thereby avoiding the problem that the mucosa is damaged due to the mucosa being first contacted by the excessively long intermediate column 20, and thereby reducing the risk of perforation and improving the safety of clamping.

[0079] The hemostatic clip 1000 comprises the clamping assembly 100, which has all the functions and beneficial effects of the clamping assembly 100.

[0080] The above only describes specific embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping assembly, characterized in that, The utility model relates to a kind of clamping assemblies, including: Clamping seat (10); Middle column (20), the middle column (20) is arranged in the clamping seat (10); First jaw (30) and second jaw (40), the first jaw (30) and the second jaw (40) are rotatably connected to the middle column (20), so that the clamping assembly (100) has closed state and open state; Wherein, in the closed state, the distal end of the middle column (20) is simultaneously arranged with the distal end of the first jaw (30) and the distal end of the second jaw (40) along the extension direction of the middle column (20), and the distal end of the middle column (20) is located on the side of the distal end of the first jaw (30) and the distal end of the second jaw (40) close to the clamping seat (10); In the open state, the distal end of the middle column (20) and the distal end of the first jaw (30) can simultaneously abut on tissue, or the distal end of the middle column (20) and the distal end of the second jaw (40) can simultaneously abut on tissue.

2. The clamp assembly of claim 1, wherein, In the open state, the angle between the first jaw (30) and the middle column (20) is 0°-90°, and the angle between the second jaw (40) and the middle column (20) is 0°-90°.

3. The clamp assembly of claim 1, wherein, In the closed state, the difference between the height of the first jaw (30) and the height of the middle column (20) is 1mm-3mm, and the difference between the height of the second jaw (40) and the height of the middle column (20) is 1mm-3mm.

4. The clamp assembly of claim 1, wherein, The middle column (20) is provided with first hook tooth (21) and second hook tooth (22), the first hook tooth (21) and the second hook tooth (22) are oppositely arranged, and the first hook tooth (21) is arranged in the direction away from the second hook tooth (22), and the second hook tooth (22) is arranged in the direction away from the first hook tooth (21).

5. The clamp assembly of claim 4, wherein, The first jaw (30) is provided with first fixed hole (31), and the first fixed hole (31) is used for cooperating with the first hook tooth (21); The second jaw (40) is provided with second fixed hole (41), and the second fixed hole (41) is used for cooperating with the second hook tooth (22).

6. The clamp assembly of claim 5, wherein, In the closed state, the end of the first hook tooth (21) is located in the first fixed hole (31), and the end of the second hook tooth (22) is located in the second fixed hole (41).

7. The clamp assembly of claim 5, wherein, The number of the first hook tooth (21) and the second hook tooth (22) is multiple, and the first hook tooth (21) and the second hook tooth (22) are arranged along the extension direction of the middle column (20). The first fixing holes (31) and the second fixing holes (41) are multiple in number, the multiple first fixing holes (31) and the multiple second fixing holes (41) are arranged at intervals along the extension direction of the middle column (20), and the multiple first fixing holes (31) and the multiple first hook teeth (21) are one-to-one corresponding and matched, and the multiple second fixing holes (41) and the multiple second hook teeth (22) are one-to-one corresponding and matched.

8. The clamp assembly of claim 7, wherein, The multiple first hook teeth (21) and the multiple second hook teeth (22) are arranged one by one.

9. The clamp assembly of claim 7, wherein, The multiple first hook teeth (21) and the multiple second hook teeth (22) are arranged in turn and staggered along the extension direction of the middle column (20).

10. The clamp assembly of claim 4, wherein, The first hook teeth (21) and the second hook teeth (22) are located at the distal end of the middle column (20).

11. The clamp assembly of claim 4, wherein, The middle column (20) is further provided with a first reinforcing tooth (23) and a second reinforcing tooth (24), the first reinforcing tooth (23) and the second reinforcing tooth (24) are arranged opposite to each other, the first reinforcing tooth (23) and the first hook tooth (21) are arranged at intervals along the extension direction of the middle column (20), and located on the side of the first hook tooth (21) close to the clamping seat (10); the second reinforcing tooth (24) and the second hook tooth (22) are arranged at intervals along the extension direction of the middle column (20), and located on the side of the second hook tooth (22) close to the clamping seat (10); Wherein, the length of the first reinforcing tooth (23) is less than the length of the first hook tooth (21), and the length of the second reinforcing tooth (24) is less than the length of the second hook tooth (22).

12. A hemostatic clip, characterized in that, The clamping assembly (100) of any one of claims 1-11. The clamping assembly (100) of any one of claims 1-11.

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