Endoscopic suturing device

Abstract

The application provides an endoscopic suturing device, which comprises a fixing frame, a limiting piece, a plurality of suturing nails, a pushing piece and a suture. The fixing frame comprises a frame body and a connecting pipe, and the connecting pipe is provided with a spring sheet and a through hole. The limiting piece comprises a traction piece and two deformation pieces. The deformation pieces and the spring sheet jointly form a clamping position, and the suturing nail located at the front end of the connecting pipe can be fixed in the clamping position. The suturing nail is fixed by the two limiting structures, so that the suturing nail and the connecting pipe can be firmly fixed, and the situation that the suturing nail cannot be anchored on the wound surface due to the movement of the suturing nail on the connecting pipe caused by misoperation is avoided. Meanwhile, after the previous suturing nail is removed from the clamping position, the deformation piece is pushed out of the connecting pipe, and the pushing piece gradually pushes the next suturing nail into the clamping position until the next suturing nail is limited by the deformation piece. At this time, the spring sheet is popped out of the connecting pipe to limit the suturing nail and prevent the suturing nail from being removed from the connecting pipe, so that each suturing nail of the endoscopic suturing device can be accurately released one by one.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an endoscope suturing device. BACKGROUND

[0002] Digestive endoscopy minimally invasive surgery is performed through natural orifice surgery, with small trauma and fast postoperative recovery, and is widely used. In the process of minimally invasive surgery, closing the wound is the most common problem. The device for closing the wound under soft endoscopy has certain limitations. A device similar to surgical laparotomy surgery that can close the wound with sutures is in demand. In the existing related technology, the wound cannot be continuously sutured at one time, and multiple suturing devices need to be installed multiple times. When the suturing nails are anchored in the human body and released, multiple suturing nails are easily released or the suturing nails cannot be released, that is, the sequential release of multiple suturing nails cannot be guaranteed, resulting in low release precision of the suturing nails and affecting the progress of the surgery. In addition, when the suturing nails are anchored in the human body, the suturing device needs to be rotated. During the rotation process, the suture is easily entangled on the suturing device, resulting in the situation that the suture cannot be tightened. SUMMARY

[0003] The purpose of the present application is to provide an endoscope suturing device capable of accurately releasing suturing nails.

[0004] To achieve the above object, the endoscope suturing device provided by the application comprises a fixing frame, the fixing frame comprises a frame body and a connecting pipe, the connecting pipe has a connecting hole penetrating therethrough, and the connecting pipe comprises oppositely arranged first and second ends, the first end is connected with the frame body, two elastic sheets and two through holes are arranged on the second end, the elastic sheet comprises oppositely arranged fixed and free ends, the fixed end is connected with the connecting pipe, and the fixed end is arranged adjacent to the frame body, the free end extends away from the frame body along the axial direction of the connecting pipe, and the distance between the elastic sheet and the outer surface of the connecting pipe gradually increases in the direction from the first end to the second end; a limiting piece, the limiting piece comprises a traction piece and two deformation pieces, one end of the traction piece extends into the connecting hole, the other end of the traction piece protrudes out of the frame body, two deformation pieces are arranged on one end of the traction piece, and the two deformation pieces correspond to the two through holes respectively and can protrude out of the through holes, and the traction piece can drive the two deformation pieces to deform so that the deformation pieces protrude out of the through holes or hide in the through holes; a plurality of suturing nails, the plurality of suturing nails are sequentially and stackingly sleeved on the outer surface of the connecting pipe, and the connecting pipe can drive the suturing nails to rotate, a step is arranged on the suturing nail, and the step is arranged adjacent to the second end, the part of the deformation piece protruding out of the through hole can be clamped on the step, and the elastic sheet can abut against one end of the suturing nail close to the first end; a pushing piece, the pushing piece is sleeved on the connecting pipe and can move along the axial direction of the connecting pipe, and the pushing piece abuts against the suturing nail; and a suture, the suture is connected with the plurality of suturing nails, and the suture is fixedly connected with one of the suturing nails arranged adjacent to the second end, and the other suturing nails can slide on the suture.

[0005] The endoscope suturing device as described above, wherein the deformation piece comprises a first connecting portion and a first clamping portion, the first connecting portion is arranged along the axial direction of the connecting pipe, and the first clamping portion is arranged along the radial direction of the connecting pipe; one end of the first clamping portion is connected with the first connecting portion, the other end of the first clamping portion protrudes out of the through hole, and the first connecting portion and the first clamping portion are circularly transitioned; and the traction piece drives the first clamping portion to move in the connecting hole through the first connecting portion, so that the first clamping portion protrudes out of the through hole or hides in the through hole.

[0006] The endoscope suturing device as described above, wherein two guide holes are arranged on the connecting pipe along the axial direction of the connecting pipe, two guide blocks are arranged on one end of the traction piece, the guide blocks are located in the guide holes and can slide in the guide holes.

[0007] The endoscopic suturing device as described above, wherein the deformation member comprises a second connecting portion and a second clamping portion, one end of the second clamping portion is connected with the second connecting portion, and the other end of the second clamping portion protrudes out of the through hole; the second connecting portion is connected with the connecting pipe through a rotating shaft and can rotate relative to the rotating shaft, and a sliding hole is arranged on the second connecting portion; one end of the traction member is provided with a sliding block, the sliding block is located in the sliding hole and can slide in the sliding hole; wherein the sliding block slides in the sliding hole to rotate the second connecting portion relative to the connecting pipe, so that the second clamping portion protrudes out of the through hole or hides in the through hole.

[0008] The endoscopic suturing device as described above, wherein the suture needle is provided with an avoidance slot matched with the second connecting portion, and the second connecting portion can extend into the avoidance slot or exit from the avoidance slot.

[0009] The endoscopic suturing device as described above, wherein the suture needle is provided with a clamping slot matched with the elastic sheet.

[0010] The endoscopic suturing device as described above, wherein the frame body comprises a main body, a guide rod and a support portion, the guide rod is located between the main body and the support portion and is connected with the main body and the support portion respectively; the endoscopic suturing device further comprises a moving portion arranged on the guide rod and capable of moving on the guide rod, and the other end of the traction member is connected with the moving portion; and a spring arranged on the guide rod and supported between the moving portion and the support portion.

[0011] The endoscopic suturing device as described above, wherein the suture needle comprises a base body, a spiral needle head and a fixing ring; the base body is provided with an arc-shaped slot, and the arc-shaped slot is arranged along the circumference of the base body; the fixing ring is sleeved on the base body and located in the arc-shaped slot, and the arc-shaped slot and the base body have a gap for passing the suture thread.

[0012] The endoscopic suturing device as described above, wherein the suture needle comprises a base body, a spiral needle head and a threading portion; the threading portion comprises a connecting ring and a connecting portion, the connecting ring is sleeved on the base body and can rotate relative to the base body, and the connecting portion is provided with a first threading hole for passing the suture thread.

[0013] The endoscopic suturing device as described above, wherein two elastic sheets are symmetrically arranged on the connecting pipe; and two through holes are symmetrically arranged on the connecting pipe.

[0014] Compared with the prior art, the technical scheme has the following advantages: the outer surface of the connecting pipe is provided with a plurality of stitching nails, the pushing member pushes the plurality of stitching nails to move on the connecting pipe, in the process, the spring is pressed against the connecting pipe by the stitching nail, when the stitching nail interferes with the deforming member, the spring is ejected and clamped on the stitching nail, so as to fix the stitching nail located at the front end of the connecting pipe and the connecting pipe, then the stitching nail is anchored at the corresponding position of the wound surface by rotating the fixing frame, and then the deforming member is hidden in the through hole by the traction member, so that the stitching nail can be detached from the connecting pipe, and the plurality of stitching nails are sequentially anchored at the corresponding position of the wound surface, and then the plurality of stitching nails are tightened by the suture, the human tissues around the wound are stitched by the plurality of stitching nails, so that the endoscopic suture device can be used to suture the wound surface after entering the human body once, and the suture efficiency of the wound surface is improved. In addition, in the process of anchoring the stitching nail on the wound surface, the deforming member and the spring jointly form a clamping position, and the stitching nail located at the front end of the connecting pipe can be fixed in the clamping position. The stitching nail is fixed by two limiting structures, which can firmly fix the stitching nail and the connecting pipe, and avoids the situation that the stitching nail cannot be anchored on the wound surface due to the movement of the stitching nail on the connecting pipe caused by misoperation. At the same time, after the previous stitching nail is detached from the clamping position, the deforming member is pushed out of the connecting pipe, the pushing member gradually pushes the next stitching nail into the clamping position until it is limited by the deforming member, at this time, the spring is ejected from the connecting pipe to limit the stitching nail to prevent it from being detached from the connecting pipe, so that each stitching nail of the endoscopic suture device is accurately released one by one, thereby ensuring the suture precision of the endoscopic suture device, and increasing the market competitiveness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0015] The following drawings are only intended to illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0016] Figure 1 is an exploded structural schematic view of the first embodiment of the endoscopic suture device described in the present application;

[0017] Figure 2 is an enlarged structural schematic view of A part in Figure 1

[0018] Figure 3 is an enlarged structural schematic view of B part in Figure 1

[0019] Figure 4 is a cross-sectional structural schematic view of the first embodiment of the endoscopic suture device described in the present application;

[0020] Figure 5a is an enlarged structural schematic view of C part in Figure 4

[0021] Figure 5b ​​​yes Figure 4 A cross-sectional view of the structure shown from another perspective;

[0022] Figure 6 yes Figure 5a A schematic diagram of another state of the structure shown;

[0023] Figure 7 This is an exploded structural diagram of a second embodiment of the endoscopic suturing device described in this application;

[0024] Figure 8 yes Figure 7 Enlarged structural diagram of section D in the middle;

[0025] Figure 9a yes Figure 7 Enlarged structural diagram of section E;

[0026] Figure 9b This is a schematic diagram of another embodiment of the connecting pipe described in this application.

[0027] Figure 10 This is a partial cross-sectional view of a second embodiment of the endoscopic suturing device described in this application;

[0028] Figure 11 yes Figure 10 A schematic diagram of another state of the structure shown;

[0029] Figure 12 This is an exploded structural diagram of a third embodiment of the endoscopic suturing device described in this application;

[0030] Figure 13 yes Figure 11 Enlarged structural diagram of section F in the middle;

[0031] Figure 14 yes Figure 11 Enlarged structural diagram of section G in the middle;

[0032] Figure 15 This is a partial cross-sectional view of a third embodiment of the endoscopic suturing device described in this application;

[0033] Figure 16 yes Figure 15 Enlarged structural diagram of section H in the middle;

[0034] Figure 17 yes Figure 16 A schematic diagram of another state of the structure shown;

[0035] Figure 18 This is a schematic diagram of the structure of the first embodiment of the suture staple described in this application;

[0036] Figure 19is a structural schematic diagram of a second embodiment of the suture staple described in the present application;

[0037] Figure 20 is a structural schematic diagram of a third embodiment of the suture staple described in the present application;

[0038] Figure 21 is a structural schematic diagram of the cutting lock device described in the present application;

[0039] Figure 22 is Figure 21 is a partial sectional structural schematic diagram of the cutting lock device described in the present application in a lock suture state;

[0040] Figure 23 is Figure 21 is a partial exploded structural schematic diagram of the cutting lock device described in the present application;

[0041] Figure 24 is Figure 21 is a partial sectional structural schematic diagram of the cutting lock device described in the present application in a cut suture state.

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] 10, fixing frame; 11, frame body; 111, main body; 112, guide rod; 113, support part; 12, connecting pipe; 121, elastic sheet; 122, through hole; 123, guide hole; 124, elastic joint; 20, limiting part; 21, traction part; 211, guide block; 212, sliding block; 22, deformation part; 221, first connecting part; 222, first clamping part; 223, second connecting part; 224, second clamping part; 225, sliding hole; 30, suture staple; 31, avoiding groove; 32, base body; 33, spiral needle head; 34, fixing ring; 35, threading part; 351, connecting ring; 352, connecting part; 36, step; 37, arc-shaped groove; 38, clamping groove; 40, pushing part; 50, suture; 60, rotating shaft; 71, moving part; 72, spring; 80, protection pipe; 90, cutting lock device; 91, mounting frame; 911, frame body; 912, handle; 913, pressing pipe; 92, traction part; 921, moving part; 922, traction part; 923, clamping end; 93, fixing shell; 931, second wire passing hole; 94, cutting shell; 941, cutting hole; 942, limiting hole; 95, extrusion part; 951, through hole; 952, cutting joint. DETAILED DESCRIPTION

[0044] The present application will be further described in detail by the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become more apparent.

[0045] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Unless specifically indicated otherwise, the drawings are not necessarily to scale.

[0046] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict. The following discussion provides a plurality of embodiments of the present application. Although each embodiment represents a single combination of the application, different embodiments of the present application can be replaced or combined, and therefore the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes A, B, and C, and another embodiment includes a combination of B and D, the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even if the embodiment is not explicitly described in the following content. In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0047] As shown in Figures 1 to 20 The endoscopic suturing device provided by the present application comprises a fixing frame 10, a limiting member 20, a plurality of suturing nails 30, a pushing member 40, and a suture 50.

[0048] The fixing frame 10 comprises a frame body 11 and a connecting pipe 12, the connecting pipe 12 has a connecting hole penetrating therethrough, and the connecting pipe 12 comprises a first end and a second end oppositely arranged, the first end is connected with the frame body 11, and the second end is provided with two elastic sheets 121 and two through holes 122, the elastic sheet 121 comprises a fixed end and a free end oppositely arranged, the fixed end is connected with the connecting pipe 12, and the fixed end is arranged adjacent to the frame body 11, the free end extends away from the frame body 11 along the axial direction of the connecting pipe 12, and the distance between the elastic sheet 121 and the outer surface of the connecting pipe 12 gradually increases in the direction from the first end to the second end. In one specific embodiment of the present application, the two elastic sheets 121 are symmetrically arranged on the connecting pipe 12; and the two through holes 122 are symmetrically arranged on the connecting pipe 12. As shown in Figure 9a and Figure 14 As shown in one embodiment of the present application, the part of the connecting pipe 12 on which the suturing nail 30 is installed has a certain elasticity, so that the connecting pipe 12 is elastically deformed in the process of entering the channel of the endoscope, so that the connecting pipe 12 is suitable for different channel shapes. In one specific embodiment of the present application, an elastic joint 124 is formed on the connecting pipe 12 to make the connecting pipe 12 have a certain elasticity, and the shape of the elastic joint 124 can be any shape, such as a spiral shape, a strip shape, etc.

[0049] The limiting member 20 comprises a traction member 21 and two deformation members 22. One end of the traction member 21 extends into the connecting hole, and the other end of the traction member 21 protrudes from the frame body 11. The two deformation members 22 are arranged on one end of the traction member 21, and correspond to the two through holes 122 respectively, and can protrude out of the through holes 122. The traction member 21 can drive the two deformation members 22 to deform, so that the deformation members 22 protrude out of the through holes 122 or hide in the through holes 122.

[0050] The plurality of stitching nails 30 are sequentially stacked on the outer surface of the connecting pipe 12, and the connecting pipe 12 can drive the stitching nails 30 to rotate. The stitching nails 30 are provided with a step, and the step is arranged adjacent to the second end. The part of the deformation member 22 protruding out of the through hole 122 can be clamped on the step, and the elastic sheet 121 can abut against one end of the stitching nail 30 close to the first end.

[0051] The pushing member 40 is sleeved on the connecting pipe 12 and can move along the axial direction of the connecting pipe 12. The pushing member 40 abuts against the stitching nail 30.

[0052] The suture 50 is connected with the plurality of stitching nails 30, and the suture 50 is fixedly connected with one stitching nail 30 arranged adjacent to the end portion of the second end. The other stitching nails 30 can slide on the suture 50.

[0053] The endoscope suture device provided in the application is provided with a plurality of suture nails 30 on the outer surface of the connecting pipe 12, the pushing member 40 pushes the plurality of suture nails 30 to move on the connecting pipe 12, and in this process, the suture nail 30 presses the spring 121 against the connecting pipe 12, when the suture nail 30 interferes with the deforming member 22, the spring 121 is ejected and clamped on the suture nail 30, thereby fixing the suture nail 30 located at the front end of the connecting pipe 12 and the connecting pipe 12, then the suture nail 30 is anchored at the corresponding position of the wound surface by rotating the fixing frame 10, and then the deforming member 22 is hidden in the through hole 122 by the traction member 21, so that the suture nail 30 can fall off from the connecting pipe 12, and the plurality of suture nails 30 are anchored at the corresponding position of the wound surface in turn, and then the plurality of suture nails 30 are tightened by the suture 50, the plurality of suture nails 30 drive the human tissues around the wound to suture the wound, thereby realizing the suture of the wound surface after the endoscope suture device enters the human body once, improving the suture efficiency of the wound surface. In addition, in the process of anchoring the suture nail 30 on the wound surface, the deforming member 22 and the spring 121 jointly form a clamping position, and the suture nail 30 located at the front end of the connecting pipe 12 can be fixed in the clamping position. The suture nail 30 is fixed by two limiting structures, which can firmly fix the suture nail 30 and the connecting pipe 12, avoiding the situation that the suture nail 30 moves on the connecting pipe due to misoperation, causing the suture nail to be unable to be anchored on the wound surface; at the same time, after the previous suture nail 30 is released from the clamping position, the deforming member is pushed out of the connecting pipe, and the pushing member gradually pushes the next suture nail 30 into the clamping position until it is limited by the deforming member, at this time the spring 121 is ejected from the connecting pipe 12 to limit the suture nail 30 and prevent it from being released from the connecting pipe 12, so that each suture nail 30 of the endoscope suture device is accurately released in sequence, thereby ensuring the suture precision of the endoscope suture device, and increasing the market competitiveness of the product.

[0054] As shown in Figure 1 , Figure 7 and Figure 12 , in an embodiment of the application, the frame body 11 includes a main body 111, a guide rod 112 and a support portion 113.

[0055] The guide rod 112 is located between the main body 111 and the support portion 113 and is connected with the main body 111 and the support portion 113 respectively.

[0056] The endoscope suture device further includes a moving portion 71 and a spring 72.

[0057] The moving portion 71 is arranged on the guide rod 112 and can move on the guide rod 112, and the moving portion 71 is connected with the other end of the traction member 21.

[0058] The spring 72 is arranged on the guide rod 112 and is supported between the moving portion 71 and the support portion 113.

[0059] In the process of pushing the suture needle 30 out of the connecting tube 12, the user drags the moving part 71 to make the two deforming parts 22 deformed to hide in the through hole 122, at this time, the moving part 71 moves along the guide rod 112 and compresses the spring 72; then the fixed frame 10 is dragged with force to make the connecting tube 12 move backward, since the suture needle 30 is anchored on the human tissue, the suture needle 30 falls off from the connecting tube 12 into the human body, after that, the dragging force on the moving part 71 is removed, under the elastic force of the spring 72, the deforming part 22 resets and extends out of the through hole 122; then the suture needle 30 is gradually pushed into the clamping position until the suture needle 30 interferes with the deforming part 22, at this time, the elastic sheet 121 pops out of the connecting tube 12 to limit the suture needle 30, the above structure is simple, the operation is simple, and the automatic reset of the deforming part 22 can be realized, so that the use comfort of the product is improved.

[0060] As shown in Figure 18 and Figure 19 , in an embodiment of the present application, the suture needle 30 is provided with a clamping groove 38 matched with the elastic sheet 121.

[0061] The clamping groove 38 increases the clamping area between the elastic sheet 121 and the suture needle 30, that is, increases the clamping strength between the suture needle 30 and the elastic sheet 121, so as to increase the reliability of the fixation of the suture needle 30.

[0062] As shown in Figure 1 , Figure 7 and Figure 12 , in an embodiment of the present application, the endoscopic suture device further comprises a protection tube 80.

[0063] The protection tube 80 is sleeved outside the whole formed by the suture needle 30, part of the pushing part 40 and the connecting tube 12.

[0064] On the one hand, it plays a protective role on the suture needle, prevents the probability of the suture needle being damaged in operation, so as to ensure the use reliability of the suture needle; on the other hand, when the endoscopic suture device is stretched in under the endoscope, the situation that the suture needle scratches the human tissue is avoided.

[0065] As shown in Figure 2 , Figure 9a , Figure 9b and Figure 14 , in an embodiment of the present application, the outer surface of the connecting tube 12 encloses a non-circular shape, and the hole wall of the suture needle 30 is matched with the outer surface of the connecting tube 12. In a specific embodiment of the present application, the outer surface of the connecting tube 12 encloses a quadrilateral shape.

[0066] After the pusher fully pushes the spiral needle of the suture pin out of the installation tube, the user rotates the fixing frame. Due to the interference between the hole wall of the suture pin and the outer surface of the connecting tube, the fixing frame drives the suture pin to rotate, thereby causing the spiral needle to screw into the corresponding human tissue. The above-mentioned suture pin rotation operation is simple and convenient, ensuring the comfort of product use and thus increasing the product's market competitiveness.

[0067] The following describes several embodiments of the deformable part in detail with reference to the accompanying drawings:

[0068] Example 1

[0069] like Figures 1 to 6 As shown, in one embodiment of this application, the deformable member 22 includes a first connecting portion 221 and a first snap-fit ​​portion 222. Specifically, the first connecting portion 221 and the first snap-fit ​​portion 222 are integrally formed structures.

[0070] The first connecting part 221 is arranged along the axial direction of the connecting pipe 12, and the first snap-fit ​​part 222 is arranged along the radial direction of the connecting pipe 12.

[0071] One end of the first snap-fit ​​portion 222 is connected to the first connecting portion 221, and the other end of the first snap-fit ​​portion 222 protrudes from the through hole 122. The first connecting portion 221 and the first snap-fit ​​portion 222 have a rounded transition. The rounded transition avoids stress concentration at the connection between the first snap-fit ​​portion 222 and the first connecting portion 221, thereby reducing the possibility of breakage between the first snap-fit ​​portion 222 and the first connecting portion 221.

[0072] The traction member 21 drives the first locking part 222 to move within the connecting hole through the first connecting part 221, so that the first locking part 222 protrudes from the through hole 122 or is hidden within the through hole 122.

[0073] When the suture staple 30 is in the snap-fit ​​position, the first snap-fit ​​part 222 snaps onto the step 36. When it is necessary to remove the suture staple 30 from the connecting tube 12, the pulling member 21 is dragged, and the pulling member 21 drives the first snap-fit ​​part 222 to move inside the connecting tube 12 through the first connecting part 221, so that the first snap-fit ​​part 222 enters the connecting tube 12 along with the first connecting part 221, thereby hiding the first snap-fit ​​part 222 inside the through hole 122, that is, the suture staple 30 is no longer restricted by the first snap-fit ​​part 222; then, it is pulled firmly to fix it. The frame 10 is used to move the connecting tube 12 backward. Since the suture staple 30 is anchored to the human tissue, it detaches from the connecting tube 12 and falls into the body. Then, a thrust is applied to the traction member, causing the deformable member 22 to reset and the first locking part 222 to extend out of the through hole. Then, another suture staple 30 is gradually pushed into the locking position. When the suture staple 30 enters the locking position until it interferes with the deformable member 22, the spring piece 121 ejects the connecting tube 12 under its own elastic force to limit the suture staple 30. The deformable member 22 has a simple structure and can effectively achieve locking with the suture staple 30.

[0074] like Figures 7 to 11 As shown, in one embodiment of this application, two guide holes 123 are provided on the connecting pipe 12 along the axial direction of the connecting pipe 12, and two guide blocks 211 are provided on one end of the traction member 21. The guide blocks 211 are located in the guide holes 123 and can slide in the guide holes 123.

[0075] The configuration of guide block 211 and guide hole 123 guides the movement of deformable part 22 in the connecting tube, preventing the deformable part 22 from tilting when sliding in the connecting tube 12, which would prevent it from extending smoothly out of the through hole and causing multiple suture staples to fall off. This ensures that the suture staples can be released accurately one by one.

[0076] In one embodiment of this application, such as Figure 9b As shown, the guide hole 123 communicates with the through hole 122 and extends through the end of the connecting pipe 12. This structure facilitates the guide block 211 entering the guide hole 123, making it easier to assemble and disassemble the product, thereby improving the product assembly efficiency and ultimately increasing the product production efficiency.

[0077] Example 2

[0078] like Figures 12 to 17 As shown, in one embodiment of this application, the deformable member 22 includes a second connecting portion 223 and a second snap-fit ​​portion 224. Specifically, the second connecting portion 223 and the second snap-fit ​​portion 224 are integrally formed structures.

[0079] One end of the second snap-fit ​​part 224 is connected to the second connecting part 223, and the other end of the second snap-fit ​​part 224 protrudes from the through hole 122.

[0080] The second connecting part 223 is connected to the connecting pipe 12 via the rotating shaft 60 and can rotate relative to the rotating shaft 60. The second connecting part 223 is provided with a sliding hole 225, and a slider 212 is provided on one end of the traction member 21. The slider 212 is located in the sliding hole 225 and can slide in the sliding hole 225.

[0081] The slider 212 slides within the sliding hole 225, causing the second connecting part 223 to rotate relative to the connecting tube 12, thereby causing the second snap-fit ​​part 224 to protrude from the through hole 122 or be hidden within the through hole 122.

[0082] When the suture staple 30 is in the snap-fit ​​position, the second snap-fit ​​part 224 snaps onto the step 36. When it is necessary to remove the suture staple 30 from the connecting tube 12, the pulling member is dragged, and the pulling member 21 drives the slider 212 to slide in the sliding hole 225, thereby causing the second connecting part 223 to drive the second snap-fit ​​part 224 to rotate relative to the connecting tube 12 in the first direction, so that the second snap-fit ​​part 224 enters the connecting tube 12, thereby hiding the second snap-fit ​​part 224 in the through hole 122, that is, the second snap-fit ​​part 224 and the suture staple 30 are no longer restricted. Then the fixing bracket is pulled forcefully. 10. This causes the connecting tube 12 to move backward. Since the suture staple 30 is anchored to the human tissue, it detaches from the connecting tube 12 and falls into the body. Then, a thrust is applied to the traction member, causing the deformable member 22 to rotate and reset in the second direction (the first direction is opposite to the second direction), and the second locking part 224 extends out of the through hole. Then, another suture staple 30 is gradually pushed into the locking position. When the suture staple 30 enters the locking position until it interferes with the deformable member 22, the spring piece 121 ejects from the connecting tube 12 to limit the suture staple 30. The deformable member 22 has a simple structure and can effectively achieve locking with the suture staple 30.

[0083] As shown in FIG9, in one embodiment of this application, the suture staple 30 is provided with a relief groove 31 that cooperates with the second connecting part 223, and the second connecting part 223 can extend into the relief groove 31 or exit from the relief groove 31.

[0084] During the rotation of the deformable part 22 relative to the connecting pipe 12, the clearance groove 31 provides clearance space for the second connecting part 223, thereby allowing the second connecting part 223 to be larger, increasing the overall strength of the deformable part 22, thereby reducing the probability of product damage and increasing the service life of the product.

[0085] In one embodiment of the application, such as Figure 14 As shown, the through hole 122 penetrates the end of the connecting pipe 12. The above structure facilitates the insertion of the deformable part 22 into the through hole 122, making it convenient for product assembly and disassembly, thereby improving product assembly efficiency and production efficiency.

[0086] Several embodiments of the suture needle 30 will be described in detail below with reference to the accompanying drawings:

[0087] Embodiment I

[0088] As shown in Figures 12 to 17 , Figure 18 and Figure 19 , in one embodiment of the present application, the suture needle 30 comprises a base body 32, a spiral needle 33 and a fixing ring 34.

[0089] The base body 32 is provided with an arc-shaped slot 37, and the arc-shaped slot 37 is arranged along the circumference of the base body 32.

[0090] The fixing ring 34 is sleeved on the base body 32 and located in the arc-shaped slot 37, and the arc-shaped slot 37 has a gap with the base body 32 for passing the suture 50.

[0091] During the rotation anchoring process of the suture needle 30, since the suture 50 is located in the gap between the fixing ring 34 and the base body 32, the suture 50 can rotate relative to the base body 32, and the suture 50 will not be locked by winding and knotting on the base body 32 and the spiral needle 33, avoiding the situation that the suture needle 30 cannot slide on the suture 50, that is, ensuring that the plurality of suture needles 30 can be tightened smoothly through the suture 50 to achieve effective suturing of the wound surface.

[0092] Embodiment II

[0093] As shown in Figure 20 , in one embodiment of the present application, the suture needle 30 comprises a base body 32, a spiral needle 33 and a threading part 35.

[0094] The threading part 35 comprises a connecting ring 351 and a connecting part 352, the connecting ring 351 is sleeved on the base body 32 and can rotate relative to the base body 32, and the connecting part 352 is provided with a first wire passing hole for passing the suture 50.

[0095] During the rotation anchoring process of the suture needle 30, the suture 50 can rotate relative to the base body 32 through the threading part 35, and the suture 50 will not be locked by winding and knotting on the base body 32 and the spiral needle 33, avoiding the situation that the suture needle 30 cannot slide on the suture 50, that is, ensuring that the plurality of suture needles 30 can be tightened smoothly through the suture 50 to achieve effective suturing of the wound surface.

[0096] The specific operation process of the endoscopic suturing device is as follows:

[0097] When the endoscope suture device enters the human body, the pusher 40 pushes the helical needle 33 of the first suture nail 30 out of the connecting tube, and in this process, the suture nail 30 presses the spring 121 against the connecting tube 12. When the helical needle 33 is completely pushed out of the connecting tube, the deforming piece 22 is clamped on the step 36, so that the suture nail 30 interferes with the deforming piece 22, and at the same time, the spring 121 is ejected and clamped on the suture nail 30, thereby fixing the suture nail 30 located at the front end of the connecting tube 12 to the connecting tube 12 to prevent the first suture nail 30 from falling off the connecting tube. Then, the first suture nail 30 is rotated by rotating the fixing frame 10, so that the helical needle 33 is rotated into the human tissue. After the helical needle 33 is completely rotated into and anchored in the human tissue, the user drags the pulling piece 21 by moving the moving part 71 to deform the two deforming pieces 22, so that the deforming pieces 22 are hidden in the through hole 122, that is, the first suture nail 30 is released, and at the same time, the moving part 71 moves along the guide rod and compresses the spring 72. Then, the connecting tube 12 is moved backward by forcibly dragging the fixing frame 10, and since the first suture nail 30 is anchored in the human tissue, the first suture nail 30 falls off the connecting tube 12 into the human body. Then, the dragging force on the moving part 71 is removed, and under the action of the spring 72, the deforming piece 22 is reset and extends out of the through hole 122, and then the second suture nail 30 is gradually pushed into the clamping position until the second suture nail 30 interferes with the deforming piece 22. At this time, the spring 121 is ejected from the connecting tube 12 to limit the second suture nail 30, and then the second suture nail is anchored in the human tissue. In succession, a plurality of suture nails 30 are anchored at fixed points of corresponding human tissues, and then the plurality of suture nails 30 are tightened by the suture thread 50 to make the plurality of suture nails 30 drive the human tissue around the wound to wrap the wound. After the plurality of suture nails 30 are tightened, the suture thread 50 is locked, and finally the suture thread 50 is cut off to make the plurality of suture nails 30 drive the human tissue around the wound to suture the wound.

[0098] As shown in the drawings, in an embodiment of the present application, the endoscope suture device further comprises a cutting and locking device 90. Figures 21 to 24

[0099] The cutting and locking device 90 comprises a mounting frame 91, a pulling piece 92, a fixing shell 93, a cutting shell 94 and a pressing piece 95.

[0100] The mounting frame 91 comprises a frame body 911, a handle 912 and a pressing tube 913, and the pressing tube 913 is provided with a second wire hole 931 for passing the suture thread 50.

[0101] The pulling piece 92 comprises a moving part 921 and a pulling part 922, the moving part 921 is arranged on the frame body 911 and can drive the pulling part 922 to move along the axis of the pressing tube 913. ​

[0102] The fixed shell 93 abuts against one end of the pressing tube 913 away from the frame body 911, and the fixed shell 93 is provided with a second wire passing hole 931 for passing the suture 50, and the traction part 922 extends into the fixed shell 93 through the frame body 911 and the pressing tube 913 in sequence.

[0103] The cutting shell 94 is arranged in the fixed shell 93, and the cutting shell 94 is provided with a cutting hole 941 and a limiting hole 942, the clamping end 923 of the traction part 922 passes through the limiting hole 942 and can interfere with the cutting shell 94, the suture 50 passes through the cutting hole 941, and the cutting hole 941 is arranged in correspondence with and in communication with the second wire passing hole 931.

[0104] The extrusion part 95 is arranged in the fixed shell 93 and located between the cutting shell 94 and the suture needle 30, the traction part 922 passes through the extrusion part 95, the extrusion part 95 is provided with a clamping structure matched with the clamping end 923 of the traction part 922, and the clamping end 923 can be detached from the clamping structure when a preset condition is met.

[0105] After the plurality of suture needles 30 are anchored at the corresponding positions of the human body tissue, the suture 50 is tightened to tighten the plurality of suture needles 30, the plurality of suture needles 30 drive the human body tissue around the wound to wrap the wound, and then the traction part 922 is continuously pulled, because the clamping end 923 of the traction part 922 is clamped with the clamping structure, the traction part 922 drives the extrusion part 95 to move, so that the extrusion part 95 is matched with the fixed shell 93 to extrude the suture 50, so that the suture 50 cannot move, thereby locking the suture 50 on the fixed shell 93; after the suture 50 is locked, the pulling force of the traction part 922 is continuously increased, so that the clamping end 923 breaks away from the clamping force between the clamping structure (i.e. the preset condition is met), so that the clamping end 923 can be detached from the clamping structure; then the clamping end 923 interferes with the cutting shell 94, the traction part 922 drives the cutting shell 94 to move in the fixed shell 93, the cutting hole 941 is misaligned with the second wire passing hole 931 with the movement of the cutting shell 94, the suture 50 is cut off by the cutting hole 941, and the extrusion part 95 falls off with the suture 50 and remains in the human body. The above structure realizes the operation of locking the suture 50 in the human body at one time, is convenient to operate, improves the suturing efficiency, and further increases the market competitiveness of the product.

[0106] In addition, the cutting and locking device 90 is an independent component and is not connected with other components of the endoscopic wire pile endoscopic suturing device, thereby reducing the complexity of the endoscopic wire pile endoscopic suturing device, enabling more suture needles 30 to be sleeved on the connecting tube, and realizing the one-time release of more suture needles 30.

[0107] As Figure 23As shown, in one embodiment of the present application, the extrusion 95 is provided with a through hole 951 penetrating therethrough; the traction portion 922 penetrates through the through hole 951, and the clamping end 923 can interfere with the extrusion 95, and the oppositely arranged side walls of the through hole 951 are respectively provided with a slit 952; the clamping structure comprises the slit 952 and the through hole 951.

[0108] The clamping end 923 of the traction portion 922 clamps with the extrusion 95, i.e. the traction portion 922 interferes with the extrusion 95, and the user forcibly drags the traction member 92, when the force received by the extrusion 95 is larger, the clamping end 923 deforms the extrusion 95 from the slit 952, so that the clamping end 923 is out of the extrusion 95, to realize the function of locking the suture 50.

[0109] In the description of the present application, it should be noted that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0110] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense. The term "a plurality of" refers to two or more, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0111] The above describes the present application in combination with the preferred embodiments, but these embodiments are only exemplary and are only for illustrative purposes. On this basis, various substitutions and improvements can be made to the present application, which all fall within the protection scope of the present application.

Claims

1. An endoscopic suturing device, characterized by, The endoscopic suturing device comprises: a fixing frame comprising a frame body and a connecting pipe, the connecting pipe having a connecting hole therethrough, and the connecting pipe comprising oppositely arranged first and second ends, the first end being connected with the frame body, and two elastic pieces and two through holes being arranged on the second end, the elastic piece comprising oppositely arranged fixed and free ends, the fixed end being connected with the connecting pipe, and the fixed end being arranged adjacent to the frame body, the free end extending away from the frame body along the axial direction of the connecting pipe, and the distance between the elastic piece and the outer surface of the connecting pipe gradually increasing along the direction from the first end to the second end; a limiting piece comprising a traction piece and two deformation pieces, one end of the traction piece extending into the connecting hole, the other end of the traction piece protruding out of the frame body, the two deformation pieces being arranged on one end of the traction piece, and the two deformation pieces respectively corresponding to the two through holes and being capable of protruding out of or hiding in the through holes, and the traction piece being capable of driving the two deformation pieces to deform so as to make the deformation pieces protrude out of or hide in the through holes; a plurality of suturing nails, the plurality of suturing nails being sequentially and stackingly arranged on the outer surface of the connecting pipe, and the connecting pipe being capable of driving the suturing nails to rotate, the suturing nail being provided with a step adjacent to the second end, and the part of the deformation piece protruding out of the through hole being capable of being clamped on the step, and the elastic piece being capable of abutting against one end of the suturing nail close to the first end; a pushing piece, the pushing piece being arranged on the connecting pipe and being capable of moving along the axial direction of the connecting pipe, and the pushing piece abutting against the suturing nail; and a suture, the suture being connected with the plurality of suturing nails, and the suture being fixedly connected with one of the suturing nails adjacent to the second end, and the other suturing nails being capable of sliding on the suture.

2. The endoscopic suturing device according to claim 1, wherein the deformation piece comprises a first connecting portion and a first clamping portion, the first connecting portion being arranged along the axial direction of the connecting pipe, and the first clamping portion being arranged along the radial direction of the connecting pipe; one end of the first clamping portion being connected with the first connecting portion, the other end of the first clamping portion protruding out of the through hole, and the first connecting portion and the first clamping portion being circularly transitioned; wherein the traction piece drives the first clamping portion to move in the connecting hole through the first connecting portion, so as to make the first clamping portion protrude out of or hide in the through hole.

3. The endoscopic suturing device according to claim 2, wherein two guide holes are arranged on the connecting pipe along the axial direction of the connecting pipe, and two guide blocks are arranged on one end of the traction piece, the guide blocks being located in the guide holes and being capable of sliding in the guide holes.

4. The endoscopic suturing device according to claim 1, wherein the deformation piece comprises a second connecting portion and a second clamping portion, one end of the second clamping portion being connected with the second connecting portion, and the other end of the second clamping portion protruding out of the through hole. The second connecting part is connected with the connecting pipe through a rotating shaft and can rotate relative to the rotating shaft, and a sliding hole is arranged on the second connecting part, one end of the traction member is provided with a sliding block, and the sliding block is located in the sliding hole and can slide in the sliding hole. The sliding block slides in the sliding hole to rotate the second connecting part relative to the connecting pipe, so that the second clamping part protrudes from the through hole or hides in the through hole.

5. The endoscopic suturing device according to claim 4, wherein The suture needle is provided with an avoiding groove matched with the second connecting part, and the second connecting part can enter or exit the avoiding groove.

6. The endoscopic suturing device according to any one of claims 1 to 5, wherein The suture needle is provided with a clamping groove matched with the elastic sheet.

7. The endoscopic suturing device according to any one of claims 1 to 5, wherein The frame body comprises a main body, a guide rod and a supporting part, the guide rod is located between the main body and the supporting part and connected with the main body and the supporting part respectively; The endoscopic suturing device further comprises a moving part arranged on the guide rod and capable of moving on the guide rod, and the other end of the traction member is connected with the moving part; and A spring is arranged on the guide rod and supported between the moving part and the supporting part.

8. The endoscopic suturing device according to any one of claims 1 to 5, wherein The suture needle comprises a base body, a spiral needle head and a fixing ring; The base body is provided with an arc-shaped groove arranged along the circumference of the base body, the fixing ring is sleeved on the base body and located in the arc-shaped groove, and the arc-shaped groove and the base body have a gap for passing the suture thread.

9. The endoscopic suturing device according to any one of claims 1 to 5, wherein The suture needle comprises a base body, a spiral needle head and a threading part; The threading part comprises a connecting ring and a connecting part, the connecting ring is sleeved on the base body and can rotate relative to the base body, and the connecting part is provided with a first threading hole for passing the suture thread.

10. The endoscopic suturing device according to any one of claims 1 to 5, wherein The two elastic sheets are symmetrically arranged on the connecting pipe. The two through holes are symmetrically arranged on the connecting pipe.

Images