Suturing device driven by gear autorotation push needle

Abstract

The utility model provides a gear autorotation push needle driving suture device. The gear autorotation push needle driving suture device comprises a mounting shell, an arc suture needle, a guide frame, a control assembly, a clamping piece and a limiting piece. The gear autorotation push needle driven suture device is simple in structure and easy to operate, continuous suture of human tissues can be achieved, the operation difficulty of an operation is greatly reduced, and therefore the market competitiveness of a product is improved. In addition, the control assembly and the clamping piece are arranged close to one side in the direction deviating from the rotating axis of the arc-shaped suture needle, the control assembly and the clamping piece are not overlapped with the suture groove in the radial direction of the circle where the arc-shaped suture hole is located, and therefore the situation that the control assembly and the clamping piece interfere with the mucosal tissue of the human body entering the suture groove is avoided; the suture groove can contain more human mucosa tissues, so that the arc-shaped suture needle can effectively suture the human mucosa tissues.

Description

Technical Field

[0001] The present application relates to the field of minimally invasive technology, and in particular to a gear self-rotating needle-pushing suturing device. Background Art

[0002] Among the methods of suturing human mucosal tissue defects / wounds under soft or hard endoscopy, thread suturing is classic and reliable. At present, the existing technology of semi-automatic thread suturing with an arc-shaped suture needle has attracted attention from the industry, which avoids direct threading by hand and greatly improves the operating efficiency. This arc-shaped suture needle is similar to the C-type, and the arc-shaped suture needle is driven by a driving mechanism to rotate 360 ​​degrees to achieve automatic threading. However, in the C-type suturing technology, the C-shaped mouth is a space for accommodating the mucosal tissue to be sutured. In other words, the mucosal tissue to be sutured must be located within the C-shaped mouth. Therefore, the size of the C-shaped mouth is directly related to the amount of mucosal tissue that can be sutured. If the C-shaped mouth is too small or blocked by other structures of the instrument, this will result in a small amount of sutured mucosal tissue or insufficient depth, which will affect the suturing effect. Utility Model Content

[0003] To achieve the above-mentioned purpose, the present application provides a gear self-rotating needle-pushing driven suturing device, which comprises: a mounting shell, the mounting shell comprises a shell and a base, the base is provided with a suturing groove and an arc-shaped suturing hole, the suturing groove is configured to accommodate human mucosal tissue, the mounting shell is provided with a mounting hole, and the mounting hole is configured to be connected to a matching piece; an arc-shaped suturing needle, the arc-shaped suturing needle is rotatably arranged in the arc-shaped suturing hole; a guide frame, the guide frame is fixed to the base and is located in the mounting shell, the guide frame is provided with a guide groove, the guide groove extends along the rotation direction of the arc-shaped suturing needle, a first meshing tooth is provided on one side wall of the guide groove, and a through tooth is provided on the guide frame on the rotation axis of the arc-shaped suturing needle. Its guide hole, the guide hole extends along the rotation direction of the arc-shaped suture needle, and the guide hole is connected to the guide groove; a control component, the control component includes a control member and a ring-shaped second meshing tooth, in the rotation direction of the arc-shaped suture needle, the second meshing tooth is arranged along the circumference of the control member, the second meshing tooth is located in the guide groove and cooperates with the first meshing tooth, the second meshing tooth is arranged at one end of the control member, and the other end of the control member extends out of the mounting shell; a clamping member, the clamping member is connected to the control member and extends into the arc-shaped suture hole, the clamping member can interfere with the arc-shaped suture needle; and a limiting member, the limiting member is arranged on the base and can interfere with the arc-shaped suture needle.

[0004] The gear self-rotating needle-pushing suturing device as described above, wherein the control member includes a driving rod and a control rod, the second meshing tooth is arranged at one end of the driving rod and is located on the outer surface of the driving rod, one end of the control rod is connected to the other end of the driving rod, and the other end of the control rod extends out of the mounting shell; a mounting groove is arranged on the driving rod, one end of the clamping member is inserted into the mounting groove, and the other end of the clamping member extends into the arc-shaped suturing hole; the clamping member includes an elastic member and a clamping needle.

[0005] The gear self-rotating needle-pushing suturing device as described above, wherein the control assembly includes a driving rod, a control rod and a driving gear; the driving gear has the second meshing tooth, the control member is connected to the driving gear, and the clamping member is connected to the driving gear; one end of the control rod is connected to the other end of the driving rod, and the other end of the control rod extends out of the mounting shell; the driving gear is provided with a connecting hole passing through it, and the driving rod is provided with a mounting groove, the mounting groove is connected to the connecting hole, one end of the clamping member passes through the connecting hole and is inserted into the mounting groove, and the other end of the clamping member extends into the arc-shaped suturing hole.

[0006] The gear self-rotating needle-pushing suturing device as described above, wherein the gear self-rotating needle-pushing suturing device also includes: a guide member, which is arranged between the control member and the hole wall of the guide hole, and the guide member is respectively connected to the control member and the hole wall of the guide hole, and the guide member can move relative to the guide frame.

[0007] The gear self-rotating needle-pushing suturing device as described above, wherein the shell includes a containing shell and a mounting shell, the mounting shell is fixed at one end of the containing shell, the base is fixed at the other end of the containing shell, and the mounting hole is arranged on the mounting shell; an avoidance notch is arranged at the other end of the containing shell, and the setting position of the avoidance notch corresponds to the position of the suturing groove and is connected to the suturing groove.

[0008] The gear self-rotating needle-pushing suturing device as described above, wherein an arc-shaped moving hole is provided on the mounting shell; one end of the control member passes through the moving hole and extends into the mounting shell, and the control member can slide in the moving hole along the extension direction of the moving hole relative to the mounting shell to drive the clamping member to move.

[0009] The gear self-rotating needle-pushing suturing device as described above, wherein the guide frame is provided with a receiving groove, and the receiving groove and the outer surface of the base constitute the guide groove.

[0010] The gear self-rotating needle-pushing suturing device as described above, wherein the base includes a substrate and a cover plate; a first arcuate groove is provided on the substrate; a second arcuate groove is provided on the cover plate, and the cover plate is covered on the substrate, and the second arcuate groove and the first arcuate groove constitute the arcuate suturing hole; the opening of the arcuate suturing hole is provided on the cover plate, and in the radial direction of the circle where the arcuate suturing needle is located, the width of the second arcuate groove is smaller than the width of the first arcuate groove.

[0011] The gear self-rotating needle-pushing suturing device as described above, wherein the wall surface of the cover plate located at the suturing groove is an inclined surface.

[0012] The gear self-rotating needle-pushing suturing device as described above, wherein the base includes a substrate and a cover plate; a first arc-shaped groove is provided on the substrate; a second arc-shaped groove is provided on the cover plate, and the cover plate is covered on the substrate, and the second arc-shaped groove and the first arc-shaped groove constitute the arc-shaped suturing hole; a slot plate is provided on the cover plate, and in the direction of the rotation axis of the arc-shaped suturing needle, the slot plate extends away from the cover plate, the slot wall of the second arc-shaped slot is connected to one side of the slot plate, and the slot plate and the slot wall of the suturing slot surround the opening of the arc-shaped suturing hole.

[0013] Compared with the prior art, the above technical solution has the following advantages:

[0014] The operator operates the control member to rotate the second meshing tooth. Since the second meshing tooth meshes with the first meshing tooth on the side wall of the guide groove, the second meshing tooth will move along the circumferential direction of the guide groove, so that the control member drives the clamping member to move along the first direction, the clamping member can interfere with the arc-shaped suture needle, the limiter slides relative to the arc-shaped suture needle, and the clamping member drives the arc-shaped suture needle to move along the first direction to drive the arc-shaped suture needle to move to suture the human mucosal tissue; when the second meshing tooth moves to the terminal position, the operator controls the second meshing tooth to rotate in the opposite direction through the control member, so that the control member drives the clamping member to move in the second direction opposite to the first direction, the clamping member is separated from the arc-shaped suture needle, the limiter can interfere with the arc-shaped suture needle, and the arc-shaped suture needle is fixed, so that the clamping member returns to the initial position, and the above operation is repeated at least once, so that the arc-shaped suture needle rotates one circle relative to the base, so that the arc-shaped suture needle passes through the human mucosal tissue; the above suturing device has a simple structure and simple operation, and can realize continuous suturing of human tissue, greatly reducing the difficulty of surgical operation, thereby improving the market competitiveness of the product. In addition, the control component and the clip are arranged on one side, deviating from the direction of the rotation axis of the arc-shaped suture needle. The above arrangement makes the control component and the clip not overlap with the suture groove in the radial direction of the circle where the arc-shaped suture hole is located, thereby avoiding the control component and the clip occupying the space of the suture groove, so that the suture groove has enough space to accommodate more human mucosal tissue, thereby enabling the arc-shaped suture needle to effectively suture the human mucosal tissue. BRIEF DESCRIPTION OF THE 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.

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the gear self-rotating clamp driven suturing device of the present application in cooperation with an endoscope;

[0017] Figure 2 yes Figure 1 a schematic diagram of the exploded structure of the structure shown;

[0018] Figure 3 yes Figure 1 A partial cross-sectional structural schematic diagram of the structure shown;

[0019] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of part A;

[0020] Figure 5 yes Figure 4 A schematic diagram of the structure in another state;

[0021] Figure 6 yes Figure 1 A schematic diagram of a partial structure of the structure shown;

[0022] Figure 7 yes Figure 6 a schematic diagram of the exploded structure of the structure shown;

[0023] Figure 8 yes Figure 6 A schematic diagram of a partial cross-sectional structure of the structure shown;

[0024] Fig. 9 It is a partial structural schematic diagram of the guide frame, the guide member and the control assembly in cooperation with the first embodiment;

[0025] Fig.10 yes Fig. 9 A schematic diagram of a partial cross-sectional structure of the structure shown;

[0026] Fig.11 It is a partial structural schematic diagram of the guide frame, guide member and control assembly in cooperation with the second embodiment;

[0027] Fig.12 yes Fig.11 A schematic diagram of a partial cross-sectional structure of the structure shown;

[0028] Fig.13 is a partial structural schematic diagram of the guide frame, guide member and control assembly in cooperation with the third embodiment;

[0029] Fig.14 yes Fig.13 A schematic diagram of a partial cross-sectional structure of the structure shown;

[0030] Fig.15 It is a schematic structural diagram of the second embodiment of the gear self-rotating clamp driven suturing device of the present application in cooperation with an endoscope;

[0031] Fig.16 yes Fig.15 A schematic diagram of the enlarged structure of part B;

[0032] Fig.17 yes Fig.16 A schematic diagram of the structure in another state;

[0033] Fig.18 It is a structural schematic diagram of the first embodiment of the gear self-rotating clamp driven suturing device and the operating handle of the present application.

[0034] Description of Figure Numbers:

[0035] 10. Mounting shell; 11. Shell; 111. Accommodating shell; 112. Fixed shell; 113. Avoidance gap; 114. Moving hole; 12. Base; 121. Base plate; 122. Cover plate; 123. First arc groove; 124. Second arc groove; 125. Slot plate; 13. Suturing groove; 131. Inclined surface; 14. Arc suture hole; 141. Opening;

[0036] 20. Curved suture needle;

[0037] 30. guide frame; 31. guide groove; 32. guide hole; 33. first meshing tooth;

[0038] 40. Control assembly; 41. Control member; 411. Driving rod; 412. Control rod; 413. Mounting groove; 42. Second meshing tooth;

[0039] 50. Card connector; 51. Elastic member; 52. Card pin;

[0040] 60. Limiting parts;

[0041] 70. guide member; 71. second bearing; 72. sliding member;

[0042] 80. Suture;

[0043] 100. Gear self-rotating needle-pushing suturing device; 200. endoscope; 300. operating handle. DETAILED DESCRIPTION

[0044] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0045] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0046] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The following discussion provides multiple 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, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes A, B, C, and another embodiment includes a combination of B and D, then the present application should also be considered to include an embodiment containing one or more of all other possible combinations of A, B, C, D, although the embodiment may not be clearly recorded in the following text. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0047] like Figures 1 to 18 As shown, the gear self-rotating needle-pushing driven suturing device 100 provided in the present application includes: a mounting shell 10, an arc-shaped suturing needle 20, a guide frame 30, a control assembly 40, a clamping member 50 and a limiting member 60.

[0048] like Figures 1 to 4 As shown, the mounting shell 10 includes a shell 11 and a base 12, the base 12 is provided with a suture groove 13 and an arc-shaped suture hole 14, the suture groove 13 is configured to accommodate human mucosal tissue, and the mounting shell 10 is provided with a mounting hole, which is configured to be connected to a matching piece. Figure 1 and Fig.18 As shown, specifically, the matching part is an endoscope 200 or an operating handle 300 used under a rigid endoscope. In one embodiment of the present application, the housing 11 includes a containing shell 111 and a fixed shell 112. The fixed shell 112 is fixed to one end of the containing shell 111, the base 12 is fixed to the other end of the containing shell 111, and the mounting hole is provided on the mounting shell 10. An avoidance gap 113 is provided on the other end of the containing shell 111, and the setting position of the avoidance gap 113 corresponds to the position of the suture groove 13 and is connected to the suture groove 13. In one embodiment of the present application, an arc-shaped moving hole 114 is provided on the fixed shell 112. One end of the control member 41 extends into the mounting shell 10 through the moving hole, and the control member 41 can slide relative to the fixed shell 112 in the moving hole 114 along the extension direction of the moving hole to drive the clamping member 50 to move.

[0049] The arcuate suture needle 20 is rotatably disposed in the arcuate suture hole 14 .

[0050] like Figures 1 to 4As shown, the guide frame 30 is fixed on the base 12 and is located in the mounting shell 10. The guide frame 30 is provided with a guide groove 31, which extends along the rotation direction of the arc-shaped suture needle 20. A first meshing tooth 33 is provided on one side wall of the guide groove 31. On the rotation axis of the arc-shaped suture needle 20, the guide frame 30 is provided with a guide hole 32 passing through it, which extends along the rotation direction of the arc-shaped suture needle 20, and the guide hole 32 is connected to the guide groove 31. In one embodiment of the present application, the guide frame 30 is provided with a receiving groove, and the receiving groove and the outer surface of the base 12 constitute the guide groove 31.

[0051] like Figures 6 to 8 As shown, the control assembly 40 includes a control member 41 and a ring-shaped second meshing tooth 42. In the rotation direction of the arc-shaped suture needle 20, the second meshing tooth 42 is arranged along the circumference of the control member 41. The second meshing tooth 42 is located in the guide groove 31 and cooperates with the first meshing tooth 33. The second meshing tooth 42 is arranged at one end of the control member 41, and the other end of the control member 41 extends out of the mounting shell 10.

[0052] like Figures 1 to 8 As shown, the clamping member 50 is connected to the control assembly 40 and extends into the arc-shaped suture hole 14 , and the clamping member 50 can interfere with the arc-shaped suture needle 20 .

[0053] The limiting member 60 is disposed on the base 12 and can interfere with the arc-shaped suture needle 20 .

[0054] The gear self-rotating needle-pushing suturing device 100 provided in the present application has a simple structure, simple operation, and can achieve continuous suturing of human tissue, greatly reducing the difficulty of surgical operation, thereby improving the market competitiveness of the product.

[0055] In addition, the control component 40 and the clamping component 50 are arranged on one side away from the direction of the rotation axis of the arc-shaped suture needle 20. The above-mentioned arrangement makes the control component 40 and the clamping component 50 not overlap with the suture groove 13 in the radial direction of the circle where the arc-shaped suture hole 14 is located, thereby avoiding the control component 40 and the clamping component 50 from interfering with the human mucosal tissue entering the suture groove 13, so that the suture groove 13 can accommodate more human mucosal tissue, thereby enabling the arc-shaped suture needle 20 to effectively suture the human mucosal tissue, thereby ensuring the suture effect on the human mucosal tissue.

[0056] The specific operation of the gear self-rotation needle-pushing suturing device 100 is as follows:

[0057] The operator operates the control member 41 to make the second meshing tooth 42 rotate. Since the second meshing tooth 42 meshes with the first meshing tooth 33 on the side wall of the guide groove 31, the second meshing tooth 42 will move along the circumference of the guide groove 31, so that the control member 41 drives the clamping member 50 to move along the first direction. The clamping member 50 can interfere with the arcuate suture needle 20 and drive the arcuate suture needle 20 to move along the first direction. The limit member 60 slides relative to the arcuate suture needle 20 to drive the arcuate suture needle 20 to move to puncture and suture the human mucosal tissue. When the second meshing tooth 42 moves to the terminal position, the operator controls the second meshing tooth 42 to rotate in the opposite direction through the control member 41, so that the control member 41 drives the clamping member 50 to move in a second direction opposite to the first direction, and the clamping member 50 is separated from the arc-shaped suture needle 20. The limiting member 60 can interfere with the arc-shaped suture needle 20 to fix the arc-shaped suture needle 20 so that the clamping member 50 returns to the initial position. Repeat the above operation at least once to make the arc-shaped suture needle 20 rotate one circle relative to the base 12 so that the arc-shaped suture needle 20 passes through the human mucosal tissue.

[0058] like Figures 6 to 8 As shown, in one embodiment of the present application, the control member 41 includes a driving rod 411 and a control rod 412 .

[0059] The second meshing teeth 42 are arranged at one end of the driving rod 411 and are located on the outer surface of the driving rod 411. One end of the control rod 412 is connected to the other end of the driving rod 411, and the other end of the control rod 412 extends out of the mounting shell 10. The control rod 412 can be a flexible shaft structure, and the flexible shaft can be driven manually by an operator or driven by a motor.

[0060] The driving rod 411 is provided with a mounting groove 413 , one end of the clamping member 50 is inserted into the mounting groove 413 , and the other end of the clamping member 50 extends into the arc-shaped suture hole 14 .

[0061] The locking member 50 includes an elastic member 51 and a locking pin 52 .

[0062] The above structure makes the second meshing teeth 42 and the control rod 412 an integrated structure, thereby ensuring the connection strength between the second meshing teeth 42 and the control rod 412, avoiding the second meshing teeth 42 from loosening from the control rod 412, and improving the reliability of the product.

[0063] In one embodiment of the present application, the control assembly includes a driving rod, a control rod and a driving gear.

[0064] The driving gear has a second meshing tooth, the control component is connected to the driving gear, and the clamping component is connected to the driving gear.

[0065] One end of the control rod is connected to the other end of the driving rod, and the other end of the control rod extends out of the mounting shell.

[0066] The driving gear is provided with a connecting hole passing through it, the driving rod is provided with a mounting groove, the mounting groove is communicated with the connecting hole, one end of the clamping piece passes through the connecting hole and is inserted into the mounting groove, and the other end of the clamping piece extends into the arc-shaped suture hole.

[0067] According to the existing processing and manufacturing technology, the driving gear and the control rod can be manufactured and assembled separately, which reduces the production cost and difficulty.

[0068] like Figures 9 to 14 As shown, in one embodiment of the present application, the gear self-rotating needle-pushing driven suturing device 100 further includes: a guide member 70.

[0069] The guide member 70 is disposed between the control member 41 and the hole wall of the guide hole 32 . The guide member 70 is connected to the control member 41 and the hole wall of the guide hole 32 , respectively. The guide member 70 can move relative to the guide frame 30 .

[0070] The setting of the guide member 70 eliminates the gap between the control member 41 and the hole wall of the guide hole 32, avoids the shaking or deviation of the control member 41 when moving in the guide hole 32, and improves the accuracy and reliability of the movement, thereby avoiding the situation where the control member 41 controls the arc suture needle 20 to be skewed and stuck when moving in the arc suture hole 14, that is, it ensures that the arc suture needle 20 moves smoothly in the arc suture hole 14 without being skewed and stuck, so that the arc suture needle 20 can suture the mucosal tissue more smoothly.

[0071] like Figures 9 to 12 As shown, in one embodiment of the present application, the guide member 70 includes a second bearing 71 and a sliding member 72 .

[0072] The second bearing 71 is disposed in the guide hole 32 , and the control member 41 is connected to the inner ring of the second bearing 71 .

[0073] The sliding member 72 is disposed between the outer ring of the second bearing 71 and the hole wall of the guide hole 32 , and the sliding member 72 is connected to the outer ring of the second bearing 71 and the hole wall of the guide hole 32 respectively.

[0074] The setting of the second bearing 71 ensures that the control member 41 can rotate relative to the guide frame 30, and the setting of the sliding member 72 ensures that the control member 41 can slide relative to the guide frame 30. The above structure is simple and can ensure that the arc suture needle 20 moves in the arc suture hole 14 without being tilted or stuck, so that the arc suture needle 20 can suture the mucosal tissue more smoothly.

[0075] like Fig. 9 and Fig.10 As shown, in a specific embodiment of the present application, the sliding member 72 is a ball.

[0076] In the rotation direction of the arc-shaped suture needle 20 , a plurality of balls are arranged on the hole wall of the guide hole 32 , and the balls can rotate relative to the guide frame 30 .

[0077] The ball bearings make the friction between the outer ring of the second bearing 71 and the wall of the guide hole 32 rolling friction, thereby reducing the friction between the outer ring of the second bearing 71 and the wall of the guide hole 32, that is, reducing the force required to drive the control member 41 to move, and improving the comfort of the product. In addition, the ball bearings make the control member 41 move more smoothly through the second bearing 71, and are easier to control.

[0078] like Fig.11 and Fig.12 As shown, in another specific embodiment of the present application, in the rotation direction of the arc-shaped suture needle 20, a slide groove is provided on the hole wall of the guide hole 32, and the sliding member 72 is a guide rail, which is fixed on the outer ring of the second bearing 71 and extends into the slide groove, and the guide rail can slide in the slide groove.

[0079] The cooperation between the guide rail and the slide groove increases the contact area between the sliding member 72 and the guide frame 30, that is, the second bearing 71 is better used to limit the control member 41, thereby more effectively avoiding the shaking or deviation of the control member 41 when moving in the guide hole 32, and improving the accuracy and reliability of the movement, thereby avoiding the situation where the control member 41 controls the arc suture needle 20 to be skewed and stuck when moving in the arc suture hole 14, that is, it is ensured that the arc suture needle 20 moves in the arc suture hole 14 without being skewed and stuck, so that the arc suture needle 20 can suture the mucosal tissue more smoothly.

[0080] like Fig.13 and Fig.14 As shown, in a specific embodiment of the present application, the guide member 70 is a ball.

[0081] The ball bearing enables the control member 41 to rotate relative to the guide frame 30, and also ensures that the rotating control member 41 and the control member 41 slide relative to the guide frame 30. The setting of the ball bearing eliminates the gap between the control member 41 and the hole wall of the guide hole 32, avoids shaking or deviation of the control member 41 when moving in the guide hole 32, improves the accuracy and reliability of the movement, and thus avoids the situation where the control member 41 controls the arc suture needle 20 to deviate sideways and get stuck when moving in the arc suture hole 14, that is, it ensures that the arc suture needle 20 moves in the arc suture hole 14 without deviating sideways and getting stuck, so that the arc suture needle 20 can suture the mucosal tissue more smoothly.

[0082] Several embodiments of the base 12 are described in detail below with reference to the accompanying drawings.

[0083] Embodiment 1

[0084] like Figure 4 and Figure 5As shown, the base 12 includes a substrate 121 and a cover 122 .

[0085] A first arc-shaped groove 123 is disposed on the substrate 121 .

[0086] The cover plate 122 is provided with a second arc-shaped groove 124 . The cover plate 122 is covered on the base plate 121 . The second arc-shaped groove 124 and the first arc-shaped groove 123 form an arc-shaped suture hole 14 .

[0087] The opening 141 of the arc-shaped suture hole 14 is disposed on the cover plate 122 . In the radial direction of the circle where the arc-shaped suture needle 20 is located, the width of the second arc-shaped groove 124 is smaller than the width of the first arc-shaped groove 123 .

[0088] The above structure enables the opening 141 of the arc-shaped suture hole 14 to face the matching piece, so that the suture 80 connected to the arc-shaped suture needle 20 passes through the working channel of the matching piece, thereby facilitating the operator to perform endoscopic surgery.

[0089] like Figure 4 and Figure 5 As shown, in one embodiment of the present application, the wall surface of the cover plate 122 located at the suture groove 13 is an inclined surface 131 .

[0090] The arrangement of the inclined surface 131 increases the accommodation space of the suture groove 13, so that the suture groove 13 can accommodate more human mucosal tissue, thereby enabling the arc-shaped suture needle 20 to effectively suture the human mucosal tissue. In addition, the inclined surface 131 plays a guiding role, making it easier for the suture 80 to come out of the opening 141 of the arc-shaped suture hole 14, thereby preventing the suture 80 from being retained in the suture hole 14.

[0091] Embodiment 2

[0092] like Figures 15 to 17 As shown, in one embodiment of the present application, the base 12 includes a substrate 121 and a cover 122 .

[0093] A first arc-shaped groove 123 is disposed on the substrate 121 .

[0094] The cover plate 122 is provided with a second arc-shaped groove 124 . The cover plate 122 is covered on the base plate 121 . The second arc-shaped groove 124 and the first arc-shaped groove 123 form an arc-shaped suture hole 14 .

[0095] A slot plate 125 is provided on the cover plate 122. In the direction of the rotation axis of the arc-shaped suture needle 20, the slot plate 125 extends away from the cover plate 122. The slot wall of the second arc-shaped slot 124 is connected to one side of the slot plate 125. The slot plate 125 and the slot wall of the suture slot 13 form an opening 141 of the arc-shaped suture hole 14.

[0096] The opening 141 formed by the groove plate 125 and the groove wall of the suture groove 13 is opened, and its edge is shallow from the depth of the arc-shaped suture hole and faces the human mucosal tissue, so that when the arc-shaped suture needle 20 rotates in the arc-shaped suture hole, the suture 80 connected to the arc-shaped suture needle 20 can smoothly escape from the arc-shaped suture hole, thereby reducing the probability of the suture 80 being entangled in the arc-shaped suture hole, and ensuring the smooth suturing of the human mucosal tissue by the suture device.

[0097] In the description of the present application, it should be noted that the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0098] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. The term "plurality" refers to two or more, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0099] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A gear self-rotating needle-pushing suturing device, characterized in that: The gear self-rotating needle-pushing suturing device comprises: A mounting shell, the mounting shell comprising a shell and a base, the base being provided with a suture groove and an arc-shaped suture hole, the suture groove being configured to accommodate human mucosal tissue, the mounting shell being provided with a mounting hole configured to be connected to a matching piece; An arcuate suture needle, the arcuate suture needle being rotatably disposed in the arcuate suture hole; A guide frame, the guide frame is fixed on the base and is located in the mounting shell, the guide frame is provided with a guide groove, the guide groove extends along the rotation direction of the arc-shaped suture needle, a first meshing tooth is provided on a side wall of the guide groove, and a guide hole penetrating the guide frame is provided on the rotation axis of the arc-shaped suture needle, the guide hole extends along the rotation direction of the arc-shaped suture needle, and the guide hole is connected to the guide groove; A control assembly, the control assembly comprising a control member and an annular second meshing tooth, wherein in the rotation direction of the arc-shaped suture needle, the second meshing tooth is arranged along the circumference of the control member, the second meshing tooth is located in the guide groove and matches with the first meshing tooth, the second meshing tooth is arranged at one end of the control member, and the other end of the control member extends out of the mounting shell; a clamping piece, the clamping piece is connected to the control assembly and extends into the arc-shaped suture hole, and the clamping piece can interfere with the arc-shaped suture needle; and A limiting member is arranged on the base and can interfere with the arc-shaped suture needle.

2. The gear self-rotating needle-pushing suturing device according to claim 1, characterized in that: The control member comprises a driving rod and a control rod, the second meshing tooth is arranged at one end of the driving rod and located on the outer surface of the driving rod, one end of the control rod is connected to the other end of the driving rod, and the other end of the control rod extends out of the mounting shell; The driving rod is provided with a mounting groove, one end of the clamping member is inserted into the mounting groove, and the other end of the clamping member extends into the arc-shaped suture hole; The clamping member includes an elastic member and a clamping pin.

3. The gear self-rotating needle-pushing suturing device according to claim 1, characterized in that: The control assembly includes a driving rod, a control rod and a driving gear; The driving gear has the second meshing teeth, the control member is connected to the driving gear, and the clamping member is connected to the driving gear; One end of the control rod is connected to the other end of the driving rod, and the other end of the control rod extends out of the mounting shell; The driving gear is provided with a connecting hole passing through it, and the driving rod is provided with a mounting groove, the mounting groove is connected with the connecting hole, one end of the clamping piece passes through the connecting hole and is inserted into the mounting groove, and the other end of the clamping piece extends into the arc-shaped suture hole.

4. The gear self-rotating needle-pushing suturing device according to claim 1, characterized in that: The gear self-rotating needle-pushing suturing device also includes: a guide member, which is arranged between the control member and the hole wall of the guide hole, and is respectively connected to the control member and the hole wall of the guide hole, and the guide member can move relative to the guide frame.

5. The gear self-rotating needle-pushing suturing device according to any one of claims 1 to 4, characterized in that: The housing comprises a containing shell and a mounting shell, the mounting shell is fixed to one end of the containing shell, the base is fixed to the other end of the containing shell, and the mounting hole is arranged on the mounting shell; The other end of the accommodating shell is provided with an avoidance notch, the setting position of the avoidance notch corresponds to the position of the suture groove, and is communicated with the suture groove.

6. The gear self-rotating needle-pushing suturing device according to any one of claims 1 to 4, characterized in that: The mounting shell is provided with an arc-shaped moving hole; One end of the control member passes through the moving hole and extends into the mounting shell. The control member can slide in the moving hole along the extending direction of the moving hole relative to the mounting shell to drive the clamping member to move.

7. The gear self-rotating needle-pushing suturing device according to any one of claims 1 to 4, characterized in that: The guide frame is provided with a receiving groove, and the receiving groove and the outer surface of the base form the guide groove.

8. The gear self-rotating needle-pushing suturing device according to any one of claims 1 to 4, characterized in that: The base includes a base plate and a cover plate; The substrate is provided with a first arc-shaped groove; The cover plate is provided with a second arc-shaped groove, the cover plate is covered on the base plate, and the second arc-shaped groove and the first arc-shaped groove constitute the arc-shaped suture hole; The opening of the arc-shaped suture hole is arranged on the cover plate, and in the radial direction of the circle where the arc-shaped suture needle is located, the width of the second arc-shaped groove is smaller than the width of the first arc-shaped groove.

9. The gear self-rotating needle-pushing suturing device according to claim 8, characterized in that: The wall surface of the cover plate located at the suture groove is an inclined surface.

10. The gear self-rotating needle-pushing suturing device according to any one of claims 1 to 4, characterized in that: The base includes a base plate and a cover plate; The substrate is provided with a first arc-shaped groove; The cover plate is provided with a second arc-shaped groove, the cover plate is covered on the base plate, and the second arc-shaped groove and the first arc-shaped groove constitute the arc-shaped suture hole; A slot plate is provided on the cover plate, and in the direction of the rotation axis of the arc-shaped suture needle, the slot plate extends away from the cover plate, the slot wall of the second arc-shaped slot is connected to one side of the slot plate, and the slot plate and the slot wall of the suture slot form an opening of the arc-shaped suture hole.

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