Endoscope needle tube puncturing and suturing device

Abstract

The utility model provides an endoscope needle tube puncturing and suturing device. The endoscope needle tube puncturing and suturing device comprises a mounting shell, a needle tube assembly, a driving assembly and a suturing assembly. The control piece controls the driving piece to rotate relative to the mounting shell, and the driving piece drives the connecting piece to move relative to the mounting shell, so that the connecting piece drives the arc-shaped puncture needle tube to rotate relative to the mounting shell. The control piece directly drives the arc-shaped puncture needle tube to be opposite to the mounting shell through matching of the driving piece and the connecting piece. The influence of the length of the needle tube assembly and the elastic tube, the stress bending of the elastic tube and the friction between the needle tube assembly and the mounting shell on the puncture force borne by the arc-shaped puncture needle tube is small, that is, the acting force of the control piece is effectively converted into the puncture force of the arc-shaped puncture needle tube through the matching of the driving piece and the connecting piece; and the arc-shaped puncture needle tube has enough puncture force, so that the arc-shaped puncture needle tube can quickly penetrate through human tissues, and the suture efficiency and implementation reliability of the product are improved.

Description

Technical Field

[0001] This application relates to the field of endoscopic minimally invasive surgery and suturing technology, and in particular to an endoscopic needle puncture and suturing device. Background Technology

[0002] Suturing digestive tract defects is a common and challenging clinical problem. Currently, flexible endoscopic devices for suturing digestive tract defects mainly include: endoscopic clips, sutureless suture devices, and suture-stud combination devices. Among them, the suture-stud combination device can be used for suturing digestive tract wounds and gastric mucosal tissue to perform minimally invasive endoscopic surgery, and the suturing effect of the suture-stud combination device is reliable.

[0003] Suture-post suturing devices typically require needle guidance. After the needle punctures the tissue to be sutured, the suture and post, located inside the needle, are inserted on both sides of the tissue. Tightening the suture then forces the post to close and compress, thus suturing the tissue. This suturing process requires the needle to penetrate the tissue, necessitating sufficient puncture force. In existing technologies, needle-guided puncture devices are mounted on the endoscope body, with the puncture end located at the proximal handle and the puncture tip at the distal tip, approximately the same distance from the endoscope body. The endoscopic surgeon applies a force to push the needle at the operating end; this puncture force is transmitted to the distal end through the long needle. However, this puncture force is affected by the needle length, needle bending under stress, and friction between the needle and tubing, leading to insufficient puncture force and impacting the puncture outcome. Utility Model Content

[0004] To achieve the above objectives, this application provides an endoscopic needle puncture and suturing device, comprising: a mounting shell configured to be fitted onto an endoscope; a needle assembly disposed on the mounting shell, the needle assembly including an arc-shaped puncture needle, a connector, and an elastic tube connected in sequence, the needle assembly having a suturing channel; a driving assembly disposed on the mounting shell, the driving assembly including a driving member and a control member connected to the driving member, the driving member being rotatably connected to the mounting shell, and the driving member having a mating surface connected to the connector; and a suturing assembly disposed within the suturing channel; wherein, the control member controls the driving member to rotate relative to the mounting shell, and the driving member drives the connector to move relative to the mounting shell, so that the connector drives the arc-shaped puncture needle to rotate relative to the mounting shell.

[0005] In the endoscopic needle puncture and suturing device described above, the mating surface is a toothed surface, and the connector is provided with meshing teeth that mate with the toothed surface.

[0006] As described above, in the endoscopic needle puncture and suturing device, the connecting member includes a connecting part and an arc-shaped rack. The connecting part is connected to the arc-shaped puncture needle and the elastic tube, respectively. The arc-shaped rack is slidable relative to the mounting shell and has meshing teeth. The driving member includes a transfer wheel and a driving gear. The control member is wound around the transfer wheel. The driving gear meshes with the arc-shaped rack, and the tooth surface is the tooth on the driving gear.

[0007] As described above, the endoscopic needle puncture and suturing device includes, wherein the mounting housing comprises: a sleeve and a support frame; the sleeve is configured to be fitted onto the endoscope; the support frame is disposed on one end of the sleeve, and the support frame is provided with a suturing groove and an arc-shaped sliding groove arranged circumferentially along the suturing groove, the suturing groove being configured to accommodate human tissue; the drive gear is disposed within the support frame.

[0008] In the endoscopic needle puncture and suturing device described above, the rotation axis of the drive gear is parallel to the rotation axis of the arc-shaped rack.

[0009] In the endoscopic needle puncture and suturing device described above, the rotation axis of the drive gear intersects with the rotation axis of the arc-shaped rack.

[0010] As described above, the endoscopic needle puncture and suturing device includes a support frame comprising: a mounting plate connected to the mounting cylinder, wherein the mounting surface of the mounting plate is provided with a receiving groove and an arc-shaped sliding groove, the receiving groove and the arc-shaped sliding groove are connected, a drive gear is disposed on the mounting surface, and the elastic tube is located in the receiving groove; and a cover plate connected to the mounting cylinder and correspondingly disposed to the opening of the receiving groove, wherein the drive gear and the needle assembly are located between the mounting plate and the cover plate, the cover plate is provided with an arc-shaped guide groove, and the arc-shaped rack is provided with a guide member that cooperates with the arc-shaped guide groove.

[0011] In the endoscopic needle puncture and suturing device described above, the arc-shaped groove includes an outlet end and a tail end disposed opposite to each other, the arc-shaped puncture needle can extend out of the support frame from the outlet end, the drive gear is disposed near the outlet end, and the receiving groove is disposed near the tail end.

[0012] In the endoscopic needle puncture and suturing device described above, the arc-shaped groove includes an outlet end and a tail end disposed opposite to each other, the arc-shaped puncture needle can extend out of the support frame from the outlet end, the drive gear is disposed near the tail end, and the receiving groove is disposed near the outlet end.

[0013] As described above, the endoscopic needle puncture and suturing device includes a mounting shell comprising a connected housing and a mounting base; a driving assembly disposed within the housing, the housing having a mounting hole for mounting an endoscope; a suturing groove and an arc-shaped sliding groove arranged circumferentially along the suturing groove on the mounting base, the suturing groove being configured to accommodate human tissue, and an arc-shaped rack disposed within the arc-shaped sliding groove; the rotation axis of the arc-shaped rack is parallel to the axis of the mounting hole, and the arc-shaped rack has meshing teeth; and a driving gear disposed within the housing.

[0014] In the endoscopic needle puncture and suturing device described above, the driving gear is a bevel gear, and the rotation axis of the driving gear intersects with the rotation axis of the arc-shaped rack.

[0015] In the endoscopic needle puncture and suturing device described above, the rotation axis of the drive gear is perpendicular to the rotation axis of the arc-shaped rack.

[0016] In the endoscopic needle puncture and suturing device described above, the connecting part and the arc-shaped rack are an integral structure.

[0017] In the endoscopic needle puncture and suturing device described above, the arc-shaped rack is provided with a positioning part that cooperates with the connecting part.

[0018] As described above, the endoscopic needle puncture and suturing device includes, wherein the driving component comprises: a rotating shaft rotatably connected to the mounting housing, and the rotating shaft having a first connecting groove, the connecting component being located within the first connecting groove, the bottom surface of the first connecting groove being the mating surface; and a first rotating wheel fixed on the rotating shaft, the control component being wound around the first rotating wheel.

[0019] The endoscopic needle puncture and suturing device described above, wherein the driving component includes: a first connecting shaft connected to the mounting housing, and a first gear disposed on the first connecting shaft, the first gear being rotatable relative to the mounting housing; a connecting arm including a free end and a fixed end disposed opposite to each other, the fixed end being fixedly connected to the first gear, and the free end being connected to the control component; and a second connecting shaft connected to the mounting housing, and a second gear disposed on the second connecting shaft that mates with the first gear, the mating surface being disposed on the second gear, the second gear being rotatable relative to the mounting housing.

[0020] As described above, the endoscopic needle puncture and suturing device includes, wherein the driving component comprises: a third connecting shaft connected to the mounting housing; and a fixing component disposed on the third connecting shaft and rotatable relative to the mounting housing, the fixing component comprising a control end and a connecting end disposed opposite to each other, the third connecting shaft being located between the control end and the connecting end, the connecting end being provided with a second connecting groove, the connecting component being located within the second connecting groove, and the bottom surface of the second connecting groove being the mating surface; the control component is connected to the control end.

[0021] The endoscopic needle puncture and suturing device as described above, wherein the driving component includes: a fourth connecting shaft connected to the mounting housing; and a second rotating wheel disposed on the fourth connecting shaft and rotatable relative to the mounting housing, the control component being wound around the second rotating wheel, and the second rotating wheel having the mating surface.

[0022] In the endoscopic needle puncture and suturing device described above, the mounting shell is provided with a support surface, and the position of the arc-shaped puncture needle corresponds to the position of the support surface.

[0023] The endoscopic needle puncture and suturing device described above, wherein the suturing assembly includes: a suture; a first limiting post disposed on the suture and capable of interfering with one end of the suture; a push-pull member connected to the other end of the suture; a second limiting post slidably disposed on the suture and located between the first limiting post and the push-pull member; a locking member slidably disposed on the suture and located between the second limiting post and the push-pull member; and a push tube slidably sleeved on the push-pull member.

[0024] As described above, the endoscopic needle puncture and suturing device includes a limiting post comprising a limiting plate and a connecting plate; the connecting plate is disposed in the middle of the limiting plate, and the limiting post is generally T-shaped; the suture is connected to the connecting plate; the limiting post includes a first limiting post and a second limiting post.

[0025] As described above, the endoscopic needle puncture and suturing device includes a limiting post comprising a first post plate, a second post plate, and a third post plate connected in sequence; the first post plate and the third post plate are respectively located on both sides of the second post plate, and the limiting post is generally Z-shaped; the suture is connected to the second post plate; the limiting post includes a first limiting post and a second limiting post.

[0026] Compared with existing technologies, the above technical solution has the following advantages:

[0027] The control unit directly drives the arc-shaped puncture needle relative to the mounting shell through the cooperation of the drive unit and the connector. Since the drive unit and the arc-shaped puncture needle rotate relative to the mounting shell, the length of the needle assembly and the elastic tube, the bending force of the elastic tube, and the friction between the needle assembly and the mounting shell have little impact on the puncture force of the arc-shaped puncture needle. That is, the force of the control unit is effectively converted into the puncture force of the arc-shaped puncture needle through the cooperation of the drive unit and the connector, so that the arc-shaped puncture needle has sufficient puncture force, thereby enabling the arc-shaped puncture needle to quickly penetrate human tissue, improving the suturing efficiency and implementation reliability of the product. Attached Figure Description

[0028] The following figures are intended only to illustrate and explain this application and do not limit the scope of this application. Wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the first embodiment of the endoscopic needle puncture and suturing device described in this application;

[0030] Figure 2 yes Figure 1 The diagram shows an exploded view of the endoscopic needle puncture and suturing device.

[0031] Figure 3 yes Figure 1 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0032] Figure 4 yes Figure 1 A partial cross-sectional view of another state of the device shown.

[0033] Figure 5a yes Figure 1 A partial structural diagram of the endoscopic needle puncture and suturing device is shown.

[0034] Figure 5b yes Figure 1 A partial structural schematic diagram of another embodiment of the endoscopic needle puncture and suturing device is shown.

[0035] Figure 6 yes Figure 1 Schematic diagram of the mounting plate in the middle;

[0036] Figure 7 This is a partial structural schematic diagram of the support frame described in this application;

[0037] Figure 8 yes Figure 1 An exploded view of another embodiment of the endoscopic needle puncture and suturing device shown.

[0038] Figure 9 yes Figure 8 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0039] Figure 10 yes Figure 8 A partial cross-sectional view of another state of the device shown.

[0040] Figure 11 yes Figure 8 Schematic diagram of the mounting plate in the middle;

[0041] Figure 12a yes Figure 8 Schematic diagram of the middle needle tube assembly;

[0042] Figure 12b yes Figure 12a Schematic diagram of the structure of the medium arc rack;

[0043] Figure 13 This is a schematic diagram of the structure of a second embodiment of the endoscopic needle puncture and suturing device described in this application;

[0044] Figure 14 yes Figure 13 The diagram shows an exploded view of the endoscopic needle puncture and suturing device.

[0045] Figure 15 yes Figure 13 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0046] Figure 16 yes Figure 13 A partial cross-sectional view of another state of the device shown.

[0047] Figure 17 yes Figure 13 A partial structural diagram of the endoscopic needle puncture and suturing device is shown.

[0048] Figure 18 This is a schematic diagram of the third embodiment of the endoscopic needle puncture and suturing device described in this application;

[0049] Figure 19 yes Figure 18 The diagram shows an exploded view of the endoscopic needle puncture and suturing device.

[0050] Figure 20 yes Figure 18 Schematic diagram of the drive component;

[0051] Figure 21 yes Figure 18 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0052] Figure 22 yes Figure 18 A partial cross-sectional view of another state of the device shown.

[0053] Figure 23 This is a schematic diagram of the fourth embodiment of the endoscopic needle puncture and suturing device described in this application;

[0054] Figure 24 yes Figure 23 The diagram shows an exploded view of the endoscopic needle puncture and suturing device.

[0055] Figure 25 yes Figure 23 Schematic diagram of the middle fixing component;

[0056] Figure 26 yes Figure 23 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0057] Figure 27 yes Figure 23 A partial cross-sectional view of another state of the device shown.

[0058] Figure 28 This is a schematic diagram of the structure of the driving component described in this application;

[0059] Figure 29 This is a schematic diagram of the fifth embodiment of the endoscopic needle puncture and suturing device described in this application;

[0060] Figure 30 yes Figure 29 The diagram shows an exploded view of the endoscopic needle puncture and suturing device.

[0061] Figure 31 yes Figure 29 Schematic diagram of the drive component;

[0062] Figure 32 yes Figure 29 A partial cross-sectional schematic diagram of the endoscopic needle puncture and suturing device shown;

[0063] Figure 33 yes Figure 29 A partial cross-sectional view of another state of the device shown.

[0064] Figure 34 This is a partial cross-sectional view of the sixth embodiment of the endoscopic needle puncture and suturing device described in this application;

[0065] Figure 35 This is a schematic diagram of another embodiment of the driving component described in this application;

[0066] Figure 36 This is a schematic diagram of the structure of the first embodiment of the suture assembly described in this application;

[0067] Figure 37This is a schematic diagram of the structure of a second embodiment of the suture assembly described in this application;

[0068] Figure 38 It is part Figure 37 The diagram shows the structure of the suture assembly and the human body assembly in conjunction.

[0069] Figure 39 It is part Figure 37 The diagram shows the structure of the suture assembly locking the human body assembly.

[0070] Figure 40 This is a schematic diagram of the structure of the third embodiment of the suture assembly described in this application;

[0071] Figure 41 It is part Figure 40 The diagram shows the structure of the suture assembly and the human body assembly in conjunction.

[0072] Figure 42 It is part Figure 40 The diagram shows the structure of the suture assembly that locks the human body.

[0073] Explanation of icon numbers:

[0074] 10. Mounting shell; 11. Sleeve; 12. Bearing frame; 121. Mounting plate; 1211. Receiving groove; 122. Cover plate; 123. Arc-shaped guide groove; 13. Mounting arm; 14. Shell; 15. Mounting base; 16. Seam groove; 17. Arc-shaped slide groove; 171. Outlet end; 172. Tail end;

[0075] 20. Needle assembly; 21. Arc-shaped puncture needle; 22. Connector; 221. Connecting part; 222. Arc-shaped rack; 223. Guide; 224. Guide rail; 23. Elastic tube;

[0076] 30. Drive assembly; 31. Drive component; 3111. Adapter wheel; 3112. Drive gear; 3121. Rotating shaft; 3122. First rotating wheel; 3131. First connecting shaft; 3132. First gear; 3133. Connecting arm; 3134. Second connecting shaft; 3135. Second gear; 3141. Third connecting shaft; 3142. Fixing component; 3151. Fourth connecting shaft; 3152. Second rotating wheel; 32. Control component; 33. Mating surface;

[0077] 40. Sewing assembly; 41. Suture; 42. First limiting post; 43. Push-pull component; 44. Second limiting post; 45. Locking component; 451. First block; 452. Second block; 46. Push tube; 47. Limiting post; 471. Limiting plate; 472. Connecting plate; 473. First pile plate; 474. Second pile plate; 475. Third pile plate;

[0078] 50. Support surface;

[0079] 100. Endoscope; 101. Endoscope channel;

[0080] 200. Human tissues. Detailed Implementation

[0081] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0082] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0083] Furthermore, the technical features involved in the different embodiments of this 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 this application. Although each embodiment represents a single combination of the application, different embodiments of this application can be substituted or combined; therefore, this 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, then this application should also be considered to include embodiments containing one or more other all other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text. Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0084] like Figures 1 to 35 As shown, the endoscopic needle puncture and suturing device provided in this application includes: a mounting shell 10, a needle assembly 20, a drive assembly 30, and a suturing assembly 40.

[0085] The mounting housing 10 is configured to be fitted onto the endoscope 100.

[0086] The needle assembly 20 is mounted on the mounting housing 10. The needle assembly 20 includes an arc-shaped puncture needle 21, a connector 22, and an elastic tube 23 connected in sequence. The needle assembly 20 has a suture channel. The connector 22 may be a tubular structure. The arc-shaped puncture needle 21 has a tip capable of penetrating human tissue 200 and a connecting section connected to the connector 22. The end of the elastic tube 23 connected to the connector 22 can be bent. When the connector 22 moves the arc-shaped puncture needle 21, the elastic tube 23 conforms to the bending deformation to accommodate the movement of the arc-shaped puncture needle 21, while ensuring that the suture channel on the elastic tube 23 remains unchanged.

[0087] The drive assembly 30 is mounted on the mounting shell 10. The drive assembly 30 includes a drive component 31 and a control component 32 connected to the drive component 31. The drive component 31 is rotatably connected to the mounting shell 10, and the drive component 31 is provided with a mating surface 33, which is connected to the connector 22.

[0088] The suture assembly 40 is disposed within the suture channel. After the arc-shaped puncture needle 21 penetrates the human tissue 200, the suture assembly 40 is removed from the arc-shaped puncture needle 21 to suture the human tissue 200.

[0089] Among them, the control component 32 controls the drive component 31 to rotate relative to the mounting shell 10, and the drive component 31 drives the connector 22 to move relative to the mounting shell 10, so that the connector 22 drives the arc-shaped puncture needle tube 21 to rotate relative to the mounting shell 10.

[0090] During suturing, the endoscopic needle tube puncture and suturing device is placed on the human tissue 200 to be sutured, and the human tissue 200 to be sutured is located on the movement trajectory of the arc-shaped puncture needle tube 21; the control unit 32 controls the drive unit 31 to drive the connector 22 to move relative to the mounting shell 10, and the connector 22 drives the arc-shaped puncture needle tube 21 to rotate. During this process, the tip of the arc-shaped puncture needle tube 21 penetrates the human tissue 200 to be sutured; then the suturing assembly 40 is pushed out of the suturing channel to suture the human tissue 200 to be sutured.

[0091] The endoscopic needle puncture and suturing device provided in this application has a control component 32 that directly drives the arc-shaped puncture needle 21 relative to the mounting shell 10 through the cooperation of the drive component 31 and the connector 22. Since the drive component 31 and the arc-shaped puncture needle 21 rotate relative to the mounting shell 10, the length of the needle assembly 20 and the elastic tube 23, the bending of the elastic tube 23 under force, and the friction between the needle assembly 20 and the mounting shell 10 have little impact on the puncture force of the arc-shaped puncture needle 21. That is, the force of the control component 32 is effectively converted into the puncture force of the arc-shaped puncture needle 21 through the cooperation of the drive component 31 and the connector 22, so that the arc-shaped puncture needle 21 has sufficient puncture force, thereby enabling the arc-shaped puncture needle 21 to quickly penetrate human tissue 200, improving the suturing efficiency and implementation reliability of the product.

[0092] like Figure 36 and Figure 37 As shown, in one embodiment of this application, the suture assembly 40 includes: a suture 41, a first limiting post 42, a push-pull member 43, a second limiting post 44, a locking member 45, and a push tube 46.

[0093] The first limiting post 42 is disposed on the seam 41 and can interfere with one end of the seam 41. Specifically, the first limiting post 42 is fixedly connected to one end of the seam 41, or a limiting block is provided at one end of the seam 41, and the limiting block can interfere with the first limiting post 42 to prevent the first limiting post 42 from falling off the seam 41.

[0094] The push-pull element 43 is connected to the other end of the seam 41.

[0095] The second limiting post 44 is slidably disposed on the seam 41 and located between the first limiting post 42 and the push-pull member 43. There is one first limiting post 42, but multiple second limiting posts 44 may be present. Figure 40 As shown, optionally, the sum of the first limiting stake 42 and the second limiting stake 44 is an even number of two or more.

[0096] The locking element 45 is slidably disposed on the seam 41 and located between the second limiting post 44 and the push-pull element 43.

[0097] The push tube 46 is slidably fitted onto the push-pull component 43.

[0098] like Figure 38 and Figure 39 As shown, after the tip of the arc-shaped puncture needle 21 penetrates the human tissue 200 to be sutured, the push-pull member 43 pushes the first limiting post 42 out of the arc-shaped puncture needle 21 so that the first limiting post 42 is located on one side of the human tissue 200 to be sutured; then, the drive assembly 30 controls the arc-shaped puncture needle 21 to retract. During the retraction process, the first limiting post 42 is in a lateral position and interferes with the human tissue 200; when the arc-shaped puncture needle 21 is located on one side of the human tissue 200 to be sutured, the push-pull member 43 pushes the second limiting post 44 out of the arc-shaped puncture needle 21 so that the second limiting post 44 is located on the other side of the human tissue 200 to be sutured, and the second limiting post 44... Positioning post 44 is positioned laterally and interferes with human tissue 200. Then, the push-pull component 43 is dragged. During this process, the push tube 46 interferes with the second positioning post 44, causing the second positioning post 44 to move on the suture 41, thus reducing the distance between the first positioning post 42 and the second positioning post 44, thereby suturing the human tissue 200 to be sutured. When the distance between the first positioning post 42 and the second positioning post 44 is at its minimum, the locking component 45 locks the first positioning post 42 and the second positioning post 44 to the suture 41, completing the suturing of the human tissue 200 to be sutured. This structure is simple and easy to operate, thereby improving the comfort of using the product. And so on, as... Figure 41 and Figure 42 As shown, if the number of upper limit posts of suture 41 is an even number of four or more, suturing operations can be performed continuously on another or more tissues to be sutured without the need to reinsert a new suture assembly 40.

[0099] like Figure 36 and Figure 37 As shown, in one embodiment of this application, the locking member 45 is a locking block, which includes a first block 451 and a second block 452.

[0100] The first block 451 and the second block 452 are sequentially fitted onto the suture 41, the push tube 46 presses against the second block 452, and the second block 452 can be fitted onto the first block 451.

[0101] When the distance between the first limiting post 42 and the second limiting post 44 is at its minimum, the human tissue 200 to be sutured is closed. Then, the push-pull component 43 is dragged and the push tube 46 presses against the second block 452. The push tube 46 drives the second block 452 to move relative to the first block 451 on the suture 41, so that the second block 452 fits onto and presses against the first block 451, thereby making the first block 451 more firmly lock the first limiting post 42 with the second limiting post 44 and the suture 41.

[0102] like Figures 1 to 35 As shown, in one embodiment of this application, a support surface 50 is provided on the mounting shell 10, and the position of the arc-shaped puncture needle 21 corresponds to the position of the support surface 50. Specifically, a support platform is provided on the mounting shell 10, and the support surface 50 is disposed on the support platform.

[0103] The tip of the arc-shaped puncture needle 21 can press against the support surface 50 so that the arc-shaped puncture needle 21 can effectively penetrate human tissue 200.

[0104] The following describes several embodiments of the driving component in detail with reference to the accompanying drawings.

[0105] Example 1

[0106] like Figures 1 to 4 , Figures 8 to 10 As shown, the mating surface 33 is a toothed surface, and the connecting member 22 is provided with meshing teeth that mate with the toothed surface. In one specific embodiment of this application, the connecting part and the arc-shaped rack are an integral structure; in another specific embodiment of this application, the arc-shaped rack is provided with a positioning part that mates with the connecting part. Those skilled in the art should understand that the connection method between the connecting part and the arc-shaped rack can be selected according to specific requirements.

[0107] The connector 22 includes a connecting part 221 and an arc-shaped rack 222. The connecting part 221 is connected to the arc-shaped puncture needle tube 21 and the elastic tube 23 respectively. The arc-shaped rack 222 can slide relative to the mounting shell 10. The arc-shaped rack 222 is provided with meshing teeth.

[0108] The driving component 31 includes a transfer wheel 3111 and a driving gear 3112. The control component 32 is coiled around the transfer wheel 3111. The driving gear 3112 meshes with the arc-shaped rack 222, and the tooth surface is the tooth of the driving gear 3112. Figure 5a As shown, the rotation axis of the drive gear 3112 is parallel to the rotation axis of the arc-shaped rack 222. Alternatively, as... Figure 5b As shown, the rotation axis of the drive gear 3112 is substantially parallel to the rotation axis of the arc-shaped rack 222, meaning that the rotation axis of the drive gear 3112 intersects the rotation axis of the arc-shaped rack 222. "Substantially parallel" means that the point of intersection between the rotation axes of the drive gear 3112 and the arc-shaped rack 222 is infinitely far away. The substantially parallel or nearly parallel rotation axis of the drive gear 3112 and the arc-shaped rack 222 determines the spatial relationship between the suture groove 16 and the endoscopic channel 101 of the endoscope 100, thus facilitating minimally invasive surgery. Those skilled in the art should understand that the specific angle formed by the intersection of the rotation axis of the drive gear 3112 and the arc-shaped rack 222 depends on the requirements of the endoscopic minimally invasive surgery. The drive gear 3112 is a spur gear.

[0109] like Figures 1 to 4 , Figures 8 to 10 As shown, the mounting housing 10 includes a sleeve 11 and a support frame 12. The sleeve 11 is configured to be fitted onto the endoscope 100.

[0110] like Figure 6 and Figure 11 As shown, the support frame 12 is disposed on one end of the sleeve 11. The support frame 12 is provided with a suture groove 16 and an arc-shaped sliding groove 17 disposed circumferentially along the suture groove 16. The suture groove 16 is configured to accommodate human tissue 200. In a specific embodiment of this application, the sleeve 11 is provided with two mounting arms 13, and there is a gap between the two mounting arms 13.

[0111] The drive gear 3112 is installed inside the support frame 12.

[0112] Dragging the control component 32 causes the drive gear 3112 to rotate relative to the mounting housing 10. The drive gear 3112 then drives the arc-shaped rack 222 to rotate relative to the mounting housing 10. The arc-shaped rack 222 causes the connecting part 221 to move relative to the mounting housing 10, and the connecting part 221 drives the arc-shaped puncture needle 21 to rotate relative to the mounting housing 10. The drive component 31 has a simple structure. The force of the control component 32 can be effectively converted into the motion force of the connecting part 221 through the drive gear 3112 and the arc-shaped rack 222. This allows the connecting part 221 to effectively drive the arc-shaped puncture needle 21 to rotate relative to the human tissue 200, giving the arc-shaped puncture needle 21 sufficient puncture force so that it can quickly penetrate the human tissue 200, thus improving the suturing efficiency of the product.

[0113] In addition, the arrangement of the rotation axis of the drive gear 3112 being substantially parallel or parallel to the rotation axis of the arc rack 222 results in a smaller space occupied by the drive gear 3112 and the arc rack 222. The running trajectory of the arc rack 222 is only a portion of the circumference, requiring no additional operating space. This makes the size of the endoscopic needle puncture and suturing device smaller, allowing it to be used in a smaller operating space, thus increasing the application range of the endoscopic needle puncture and suturing device.

[0114] In addition, the transmission device of the above structure adopts a gear and rack transmission method. This type of structure has a long service life, stable operation, and high reliability, thereby ensuring effective driving of the connecting part 22 and improving the reliability of the product.

[0115] like Figures 1 to 4 , Figures 8 to 10 As shown, in one embodiment of this application, the support frame 12 includes a mounting plate 121 and a cover plate 122.

[0116] The mounting plate 121 is connected to the sleeve 11, and the mounting surface of the mounting plate 121 is provided with a receiving groove 1211 and an arc-shaped sliding groove 17. The receiving groove 1211 and the arc-shaped sliding groove 17 are connected. The drive gear 3112 is disposed on the mounting surface, and the elastic tube 23 is located in the receiving groove 1211. The arc-shaped puncture needle tube 21 always rotates within the track of the arc-shaped sliding groove 17, which ensures the accuracy and stability of puncture. In a specific embodiment of this application, the mounting plate 121 is connected to two mounting arms 13 on the sleeve 11 respectively.

[0117] The cover plate 122 is connected to the sleeve 11 and corresponds to the opening of the receiving groove 1211. The drive gear 3112 and the needle assembly 20 are located between the mounting plate 121 and the cover plate 122. The cover plate 122 is provided with an arc-shaped guide groove 123, and the arc-shaped rack 222 is provided with a guide member 223 that cooperates with the arc-shaped guide groove 123. This makes the rotation trajectory of the arc-shaped rack 222 accurate and stable, ensuring the puncture effect of the arc-shaped puncture needle 21. In a specific embodiment of this application, the cover plate 122 is connected to two mounting arms 13 on the sleeve 11 respectively.

[0118] The aforementioned support frame 12 has a simple structure, is easy to operate, and is easy to manufacture, thereby reducing the production cost of the product.

[0119] like Figure 7 As shown, in one embodiment of this application, the cover plate 122 and the two mounting arms 13 are an integral structure.

[0120] The above structure ensures that the cover plate 122 has high mechanical strength and simplifies the overall structure.

[0121] like Figures 1 to 4 As shown, in one embodiment of this application, the arc-shaped chute 17 includes an outlet end 171 and a tail end 172 disposed opposite to each other. The arc-shaped puncture needle tube 21 can extend out of the support frame 12 from the outlet end 171. The drive gear 3112 is disposed near the outlet end 171, and the receiving groove 1211 is disposed near the tail end 172.

[0122] The above structure is simple, has a long service life, operates smoothly, and has high reliability, thus ensuring effective driving of the connector 22 and improving the reliability of the product.

[0123] like Figures 8 to 11 As shown, in one embodiment of this application, the arc-shaped chute 17 includes an outlet end 171 and a tail end 172 disposed opposite to each other. The arc-shaped puncture needle tube 21 can extend out of the support frame 12 from the outlet end 171. The drive gear 3112 is disposed near the tail end 172, and the receiving groove 1211 is disposed near the outlet end 171.

[0124] like Figure 9 and Figure 10 As shown, after the arc-shaped puncture needle tube 21 performs puncture, the deformation of the elastic tube 23 is small, that is, the curvature of the elastic tube 23 is relatively gentle. Since the curvature of the elastic tube 23 during the deformation process is relatively gentle, it is beneficial for the suture assembly to be pushed out from the needle tube assembly, thereby improving the comfort of using the product.

[0125] like Figure 8 Figure 12a and Figure 12b As shown, in one specific embodiment of this application, the arc-shaped rack 222 is provided with a guide rail 224 that cooperates with the arc-shaped groove 17. The guide rail 224 can slide within the arc-shaped groove 17. The guide rail 224 and the guide member together restrict the running trajectory of the arc-shaped rack 222, ensuring the accuracy and stability of the rotation trajectory of the arc-shaped rack 222, and ensuring the puncture effect of the arc-shaped puncture needle 21.

[0126] Example 2

[0127] like Figures 13 to 16 As shown, the mating surface 33 is a toothed surface, and the connecting member 22 is provided with meshing teeth that mate with the toothed surface. In one specific embodiment of this application, the connecting part and the arc-shaped rack are an integral structure; in another specific embodiment of this application, the arc-shaped rack is provided with a positioning part that mates with the connecting part. Those skilled in the art should understand that the connection method between the connecting part and the arc-shaped rack can be selected according to specific requirements.

[0128] The connector 22 includes a connecting part 221 and an arc-shaped rack 222. The connecting part 221 is connected to the arc-shaped puncture needle tube 21 and the elastic tube 23 respectively. The arc-shaped rack 222 can slide relative to the mounting shell 10. The arc-shaped rack 222 is provided with meshing teeth.

[0129] The driving component 31 includes an adapter wheel 3111 and a driving gear 3112. The control component 32 is wound around the adapter wheel 3111. The driving gear 3112 meshes with the arc-shaped rack 222, and the tooth surface is the tooth of the driving gear 3112. The driving gear 3112 is a bevel gear, and the rotation axis of the driving gear 3112 intersects with the rotation axis of the arc-shaped rack 222. Specifically, as shown... Figure 17 As shown, the rotation axis of the drive gear 3112 is perpendicular to the rotation axis of the arc-shaped rack 222. This determines the spatial relationship between the suture groove 16 and the endoscopic channel 101 of the endoscope 100, thus facilitating minimally invasive surgery. Those skilled in the art should understand that the specific angle formed by the intersection of the rotation axis of the drive gear 3112 and the rotation axis of the arc-shaped rack 222 depends on the requirements of minimally invasive endoscopic surgery.

[0130] Mounting housing 10 includes a housing 14 and a mounting base 15 connected together.

[0131] The drive assembly 30 is disposed inside the housing 14, and the housing 14 is provided with mounting holes for mounting the endoscope 100.

[0132] The mounting base 15 is provided with a suture groove 16 and an arc-shaped slide 17 arranged circumferentially along the suture groove 16. The suture groove 16 is configured to accommodate human tissue 200, and the arc-shaped rack 222 is arranged in the arc-shaped slide 17.

[0133] The rotation axis of the arc-shaped rack 222 is parallel to the axis of the mounting hole, and the arc-shaped rack 222 is provided with meshing teeth.

[0134] The drive gear 3112 is disposed inside the housing 14.

[0135] Dragging the control component 32 causes the drive gear 3112 to rotate relative to the mounting housing 10. The drive gear 3112 then drives the arc-shaped rack 222 to rotate relative to the mounting housing 10. The arc-shaped rack 222 causes the connecting part 221 to move relative to the mounting housing 10, and the connecting part 221 drives the arc-shaped puncture needle 21 to rotate relative to the mounting housing 10. The drive component 31 has a simple structure. The force of the control component 32 can be effectively converted into the motion force of the connecting part 221 through the drive gear 3112 and the arc-shaped rack 222. This allows the connecting part 221 to effectively drive the arc-shaped puncture needle 21 to rotate relative to the human tissue 200, giving the arc-shaped puncture needle 21 sufficient puncture force so that it can quickly penetrate the human tissue 200, thus improving the suturing efficiency of the product.

[0136] In addition, the rotation axis of the arc-shaped rack 222 is parallel to the axis of the mounting hole, and the rotation axis of the drive gear 3112 is perpendicular to the rotation axis of the arc-shaped rack 222. The above-mentioned fit relationship allows the housing 14 to have a large space, so that the endoscope 100 has a large field of view, thereby ensuring the observation of the suturing process of human tissue 200 and improving the comfort of using the product.

[0137] Example 3

[0138] like Figures 18 to 22 As shown, the drive component 31 includes: a rotating shaft 3121 and a first rotating wheel 3122.

[0139] The rotating shaft 3121 is rotatably connected to the mounting shell 10, and a first connecting groove is provided on the rotating shaft 3121. The connecting piece 22 is located in the first connecting groove, and the bottom surface of the first connecting groove is the mating surface 33.

[0140] The first rotating wheel 3122 is fixed on the rotating shaft 3121, and the control component 32 is wound around the first rotating wheel 3122. The first rotating wheel 3122 is provided with a notch, and the end of the control component 32 is engaged in the notch.

[0141] The drag control component 32 drives the first rotating wheel 3122 to rotate relative to the mounting shell 10. The first rotating wheel 3122 drives the rotating shaft 3121 to rotate, and the rotating shaft 3121 drives the connecting component 22 to move relative to the mounting shell 10. The connecting component 22 drives the arc-shaped puncture needle 21 to rotate relative to the mounting shell 10. The structure of the driving component 31 is simple. Since the rotating shaft 3121 and the arc-shaped puncture needle 21 rotate relative to the mounting shell 10, that is, the rotating shaft 3121 and the arc-shaped puncture needle 21 have no displacement relative to the mounting shell 10. The force of the control component 32 can be effectively converted into the motion force of the connecting component 22 through the rotating shaft 3121 and the first rotating wheel 3122. This allows the connecting component 22 to effectively drive the arc-shaped puncture needle 21 to rotate relative to the human tissue 200, so that the arc-shaped puncture needle 21 has sufficient puncture force, enabling the arc-shaped puncture needle 21 to quickly penetrate the human tissue 200, thereby improving the suturing efficiency of the product.

[0142] like Figure 20 As shown, in one embodiment of this application, the number of first rotating wheels 3122 is one or two. Optionally, two first rotating wheels 3122 are provided on the rotating shaft 3121, one end of the control member 32 is wound around one first rotating wheel 3122, and the other end of the control member 32 is wound around the other first rotating wheel 3122. The control member 32 is configured to drive the two first rotating wheels 3122 to rotate in two opposite directions.

[0143] The first connecting groove is located between the two first rotating wheels 3122.

[0144] Dragging one end of the control component 32 causes a first rotating wheel 3122 to drive the rotating shaft 3121 to rotate in a first direction, so that the arc-shaped puncture needle tube 21 moves in the first direction. During this process, the other end of the control component 32 is coiled around another first rotating wheel 3122. Conversely, dragging the other end of the control component 32 causes another first rotating wheel 3122 to drive the rotating shaft 3121 to rotate in a second direction, so that the arc-shaped puncture needle tube 21 moves in the second direction. During this process, one end of the control component 32 is coiled around a first rotating wheel 3122. The above structure is reasonably designed, compact, simple to operate, and convenient to use.

[0145] In addition, the first connecting groove is located between the two first rotating wheels 3122, which makes the force on the rotating shaft 3121 uniform during the dragging process, avoiding damage to the rotating shaft 3121 due to excessive local force, thereby ensuring the reliability of the product.

[0146] Example 4

[0147] like Figures 23 to 27 As shown, the driving component 31 includes a third connecting shaft 3141 and a fixing component 3142.

[0148] The third connecting shaft 3141 is connected to the mounting housing 10.

[0149] The fixing member 3142 is mounted on the third connecting shaft 3141 and can rotate relative to the mounting shell 10. The fixing member 3142 includes a control end and a connecting end that are arranged opposite to each other. The third connecting shaft 3141 is located between the control end and the connecting end. A second connecting groove is provided on the connecting end. The connecting member 22 is located in the second connecting groove. The bottom surface of the second connecting groove is a mating surface 33.

[0150] Optionally, the third connecting shaft 3141 is fixedly connected to the mounting housing 10, and the fixing member 3142 is rotatably mounted on the third connecting shaft 3141; or, the third connecting shaft 3141 is rotatably connected to the mounting housing 10, and the fixing member 3142 is fixed on the third connecting shaft 3141.

[0151] The control unit 32 is connected to the control terminal.

[0152] Dragging or pushing the control component 32 causes the fixing component 3142 to rotate relative to the mounting shell 10. The fixing component 3142 then causes the connecting component 22 to move relative to the mounting shell 10, and the connecting component 22 causes the arc-shaped puncture needle tube 21 to rotate relative to the mounting shell 10. The structure of the aforementioned driving component 31 is simple. Since the fixing component 3142 and the arc-shaped puncture needle tube 21 rotate relative to the mounting shell 10 (i.e., there is no displacement between the fixing component 3142 and the arc-shaped puncture needle tube 21 relative to the mounting shell 10), the force of the control component 32 can be effectively converted into the kinetic force of the connecting component 22 through the fixing component 3142. This allows the connecting component 22 to effectively drive the arc-shaped puncture needle tube 21 to rotate relative to the human tissue 200, giving the arc-shaped puncture needle tube 21 sufficient puncture force so that it can quickly penetrate the human tissue 200, thereby improving the suturing efficiency of the product.

[0153] like Figure 28 As shown, in one embodiment of this application, on the axial direction of the third connecting shaft 3141, the two ends of the control member 32 are symmetrically connected to the two sides of the fixing member 3142, and one end of the control member 32 is connected to the control end, and the other end of the control member 32 is connected to the connecting end.

[0154] In addition, the above structure ensures that the fixing member 3142 is subjected to uniform force during the dragging process of the control member 32, thus preventing damage to the fixing member 3142 due to excessive local force and ensuring the reliability of the product.

[0155] Example 5

[0156] like Figures 29 to 33 As shown, the drive component 31 includes: a first connecting shaft 3131, a connecting arm 3133, and a second connecting shaft 3134.

[0157] The first connecting shaft 3131 is connected to the mounting housing 10, and a first gear 3132 is provided on the first connecting shaft 3131. The first gear 3132 can rotate relative to the mounting housing 10.

[0158] The connecting arm 3133 includes a free end and a fixed end that are arranged opposite to each other. The fixed end is fixedly connected to the first gear 3132, and the free end is connected to the control component 32.

[0159] The second connecting shaft 3134 is connected to the mounting housing 10, and a second gear 3135 that cooperates with the first gear 3132 is provided on the second connecting shaft 3134. The mating surface 33 is provided on the second gear 3135, and the second gear 3135 can rotate relative to the mounting housing 10.

[0160] Optionally, the first connecting shaft 3131 is fixedly connected to the mounting housing 10, and the first gear 3132 is rotatably mounted on the first connecting shaft 3131; or, the first connecting shaft 3131 is rotatably connected to the mounting housing 10, and the first gear 3132 is fixed on the first connecting shaft 3131.

[0161] Optionally, the second connecting shaft 3134 is fixedly connected to the mounting housing 10, and the second gear 3135 is rotatably mounted on the second connecting shaft 3134; or, the second connecting shaft 3134 is rotatably connected to the mounting housing 10, and the second gear 3135 is fixed on the second connecting shaft 3134.

[0162] Dragging or pushing the control component 32 causes the first gear 3132 to rotate relative to the mounting housing 10 via the connecting arm 3133. The first gear 3132 causes the second gear 3135 to rotate, and the second gear 3135 causes the connecting component 22 to move relative to the mounting housing 10. The connecting component 22 causes the arc-shaped puncture needle tube 21 to rotate relative to the mounting housing 10. The aforementioned driving component 31 has a simple structure. Since the first gear 3132, the second gear 3135, and the arc-shaped puncture needle tube 21 rotate relative to the mounting shell 10, i.e., the first gear 3132, the second gear 3135, and the arc-shaped puncture needle tube 21 have no displacement relative to the mounting shell 10, the force of the control component 32 can be effectively converted into the motion force of the connecting component 22 through the rotating shaft 3121 and the first rotating wheel 3122. This allows the connecting component 22 to effectively drive the arc-shaped puncture needle tube 21 to rotate relative to the human tissue 200, giving the arc-shaped puncture needle tube 21 sufficient puncture force so that the arc-shaped puncture needle tube 21 can quickly penetrate the human tissue 200, thereby improving the suturing efficiency of the product.

[0163] In addition, the above structure adopts a gear transmission method, which has a long service life, stable operation, and high reliability, thereby ensuring effective driving of the connecting part 22 and improving the reliability of the product.

[0164] like Figure 31 As shown, in one embodiment of this application, the connected arm 3133 includes a first plate, a second plate, and a third plate connected in sequence.

[0165] The first plate and the third plate are located on the same side of the second plate. The connecting arm 3133 is U-shaped. The first plate and the third plate are connected to the first gear 3132, and the first plate and the third plate are symmetrically arranged on both sides of the first gear 3132.

[0166] The connecting arm 3133 and the first gear 3132 form a through hole, through which the elastic tube 23 passes.

[0167] The control component 32 is connected to the second plate.

[0168] The control component 32 connects to the second plate, thus connecting the control component 32 to the middle of the connecting arm 3133. During the pushing and pulling of the control component 32, the force on the connecting arm 3133 is evenly distributed. This prevents damage to the connecting arm 3133 due to excessive localized force, ensuring product reliability. Furthermore, it allows for smoother driving of the first gear 3132 via the connecting arm 3133, improving user comfort.

[0169] Example 6

[0170] like Figure 34 and Figure 35 As shown, the drive unit 31 includes a fourth connecting shaft 3151 and a second rotating wheel 3152, with the fourth connecting shaft 3151 connected to the mounting housing 10.

[0171] The second rotating wheel 3152 is mounted on the fourth connecting shaft 3151 and can rotate relative to the mounting housing 10. The control component 32 is coiled around the second rotating wheel 3152, and the second rotating wheel 3152 is provided with a mating surface 33.

[0172] Optionally, the fourth connecting shaft 3151 is fixedly connected to the mounting housing 10, and the second rotating wheel 3152 is rotatably mounted on the fourth connecting shaft 3151; or, the fourth connecting shaft 3151 is rotatably connected to the mounting housing 10, and the second rotating wheel 3152 is fixed on the fourth connecting shaft 3151.

[0173] Dragging the control component 32 causes the second rotating wheel 3152 to rotate relative to the mounting housing 10. The second rotating wheel 3152 then causes the connecting component 22 to move relative to the mounting housing 10, and the connecting component 22 causes the arc-shaped puncture needle tube 21 to rotate relative to the mounting housing 10. The structure of the aforementioned driving component 31 is simple. Since the fourth connecting shaft 3151 and the second rotating wheel 3152 rotate relative to the mounting housing 10, that is, the second rotating wheel 3152 and the arc-shaped puncture needle tube 21 have no displacement relative to the mounting housing 10. The force of the control component 32 can be effectively converted into the motion force of the connecting component 22 through the fourth connecting shaft 3151 and the second rotating wheel 3152. This allows the connecting component 22 to effectively drive the arc-shaped puncture needle tube 21 to rotate relative to the human tissue 200, giving the arc-shaped puncture needle tube 21 sufficient puncture force so that the arc-shaped puncture needle tube 21 can quickly penetrate the human tissue 200, thereby improving the suturing efficiency of the product.

[0174] The following describes several embodiments of the limit stake with reference to the accompanying drawings.

[0175] Example 1

[0176] like Figure 36 As shown, the limiting pile 47 includes a limiting plate 471 and a connecting plate 472. The connecting plate 472 is located in the middle of the limiting plate 471, and the limiting pile 47 is T-shaped in general.

[0177] The stitch 41 is connected to the connecting plate 472.

[0178] The limiting stake 47 includes a first limiting stake 42 and a second limiting stake 44.

[0179] The aforementioned limiting pile 47 has a simple structure and is easy to manufacture, thereby reducing the production cost of the product.

[0180] Example 2

[0181] like Figure 37 and Figure 40 As shown, the limiting pile 47 includes a first pile plate 473, a second pile plate 474 and a third pile plate 475 connected in sequence. The first pile plate 473 and the third pile plate 475 are located on both sides of the second pile plate 474, and the limiting pile 47 is in the shape of a "Z".

[0182] The seam 41 is connected to the second pile plate 474.

[0183] The limiting stake 47 includes a first limiting stake 42 and a second limiting stake 44.

[0184] The structure of the aforementioned limiting post 47 allows two limiting posts 47 to work together to effectively compress the human tissue 200, thereby ensuring the suturing effect of the product.

[0185] In the description of this application, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0186] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0187] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. An endoscopic needle tube puncture and suture device, characterized by, The endoscopic needle puncture and suturing device includes: a mounting shell configured to be fitted onto the endoscope; A needle assembly is disposed on the mounting housing. The needle assembly includes an arc-shaped puncture needle, a connector, and an elastic tube connected in sequence. The needle assembly has a suture channel. A drive assembly, disposed on the mounting housing, includes a drive component and a control component connected to the drive component. The drive component is rotatably connected to the mounting housing, and a mating surface is provided on the drive component, the mating surface being connected to the connecting component; and A suture assembly disposed within the suture channel; The control component controls the drive component to rotate relative to the mounting housing, and the drive component drives the connector to move relative to the mounting housing, so that the connector drives the arc-shaped puncture needle to rotate relative to the mounting housing.

2. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The mating surface is a toothed surface, and the connector is provided with meshing teeth that mate with the toothed surface.

3. The endoscopic needle puncture and suturing device according to claim 2, characterized in that, The connector includes a connecting part and an arc-shaped rack. The connecting part is connected to the arc-shaped puncture needle tube and the elastic tube, respectively. The arc-shaped rack can slide relative to the mounting shell, and the arc-shaped rack is provided with the meshing teeth. The driving component includes a transfer wheel and a driving gear. The control component is coiled around the transfer wheel. The driving gear meshes with the arc-shaped rack. The tooth surface is the tooth on the driving gear.

4. The endoscopic needle puncture and suturing device according to claim 3, characterized in that, The mounting housing includes: a sleeve and a support frame; The sleeve is configured to be fitted onto the endoscope; The support frame is disposed on one end of the sleeve, and the support frame is provided with a suture groove and an arc-shaped sliding groove arranged circumferentially along the suture groove. The suture groove is configured to accommodate human tissue. The drive gear is disposed within the support frame.

5. The endoscopic needle puncture and suturing device according to claim 4, characterized in that, The axis of rotation of the drive gear is parallel to the axis of rotation of the arc-shaped rack.

6. The endoscopic needle puncture and suturing device according to claim 4, characterized in that, The axis of rotation of the drive gear intersects the axis of rotation of the arc-shaped rack.

7. The endoscopic needle puncture and suturing device according to claim 4, characterized in that, The support frame includes: a mounting plate connected to the sleeve, and a receiving groove and an arc-shaped sliding groove provided on the mounting surface of the mounting plate, the receiving groove communicating with the arc-shaped sliding groove; a drive gear disposed on the mounting surface; and an elastic tube located within the receiving groove; and A cover plate is connected to the sleeve and is correspondingly arranged with the opening of the receiving groove. The drive gear and the needle assembly are located between the mounting plate and the cover plate. An arc-shaped guide groove is provided on the cover plate, and a guide member that cooperates with the arc-shaped guide groove is provided on the arc-shaped rack.

8. The endoscopic needle puncture and suturing device according to claim 7, characterized in that, The arc-shaped chute includes an outlet end and a tail end arranged opposite to each other. The arc-shaped puncture needle can extend from the outlet end into the support frame. The drive gear is located near the outlet end, and the receiving groove is located near the tail end.

9. The endoscopic needle puncture and suturing device according to claim 7, characterized in that, The arc-shaped chute includes an outlet end and a tail end arranged opposite to each other. The arc-shaped puncture needle can extend from the outlet end into the support frame. The drive gear is located near the tail end, and the receiving groove is located near the outlet end.

10. The endoscopic needle puncture and suturing device according to claim 3, characterized in that, The mounting housing includes a housing and a mounting base connected together; The drive assembly is disposed within the housing, and the housing is provided with mounting holes for mounting the endoscope. The mounting base is provided with a suture groove and an arc-shaped sliding groove arranged circumferentially along the suture groove. The suture groove is configured to accommodate human tissue, and the arc-shaped rack is disposed in the arc-shaped sliding groove. The rotation axis of the arc-shaped rack is parallel to the axis of the mounting hole, and the arc-shaped rack is provided with the meshing teeth; The drive gear is disposed within the housing.

11. The endoscopic needle puncture and suturing device according to claim 10, characterized in that, The drive gear is a bevel gear, and the axis of rotation of the drive gear intersects the axis of rotation of the arc-shaped rack.

12. The endoscopic needle puncture and suturing device according to claim 11, characterized in that, The axis of rotation of the drive gear is perpendicular to the axis of rotation of the arc-shaped rack.

13. The endoscopic needle puncture and suturing device according to claim 3, characterized in that, The connecting part and the arc-shaped rack are an integral structure.

14. The endoscopic needle puncture and suturing device according to claim 3, characterized in that, The arc-shaped rack is provided with a positioning part that cooperates with the connecting part.

15. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The driving component includes: a rotating shaft rotatably connected to the mounting housing, the rotating shaft having a first connecting groove, the connecting component located within the first connecting groove, and the bottom surface of the first connecting groove being the mating surface; and The first rotating wheel is fixed on the rotating shaft, and the control element is wound around the first rotating wheel.

16. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The driving component includes: a first connecting shaft, which is connected to the mounting housing, and a first gear is provided on the first connecting shaft, which is rotatable relative to the mounting housing; A connecting arm, comprising a free end and a fixed end disposed opposite to each other, the fixed end being fixedly connected to the first gear, and the free end being connected to the control component; and A second connecting shaft is connected to the mounting housing, and a second gear that mates with the first gear is provided on the second connecting shaft. The mating surface is provided on the second gear, and the second gear is rotatable relative to the mounting housing.

17. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The driving component includes: A third connecting shaft, the third connecting shaft being connected to the mounting housing; and A fastener is provided on the third connecting shaft and is rotatable relative to the mounting shell. The fastener includes a control end and a connecting end that are disposed opposite to each other. The third connecting shaft is located between the control end and the connecting end. A second connecting groove is provided on the connecting end. The connecting member is located in the second connecting groove. The bottom surface of the second connecting groove is the mating surface. The control component is connected to the control terminal.

18. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The driving component includes: A fourth connecting shaft, which is connected to the mounting housing; and The second rotating wheel is disposed on the fourth connecting shaft and is rotatable relative to the mounting housing. The control component is wound around the second rotating wheel, and the second rotating wheel is provided with the mating surface.

19. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The mounting housing is provided with a support surface, and the position of the arc-shaped puncture needle corresponds to the position of the support surface.

20. The endoscopic needle puncture and suturing device according to claim 1, characterized in that, The suture assembly includes: suture thread; The first limiting post is disposed on the seam and is capable of interfering with one end of the seam; A push-pull component, which is connected to the other end of the stitch; The second limiting post is slidably disposed on the seam line and located between the first limiting post and the push-pull member; A locking element, slidably disposed on the seam and located between the second limiting post and the push-pull element; and A push tube, which is slidably fitted onto the push-pull member.

21. The endoscopic needle puncture and suturing device according to claim 20, characterized in that, The limiting pile includes a limiting plate and a connecting plate; The connecting plate is located in the middle of the limiting plate, and the limiting post is T-shaped in general. The suture is connected to the connecting plate; The limiting stakes include a first limiting stake and a second limiting stake.

22. The endoscopic needle puncture and suturing device according to claim 20, characterized in that, The limiting pile includes a first pile plate, a second pile plate, and a third pile plate connected in sequence; The first pile plate and the third pile plate are respectively located on both sides of the second pile plate, and the limiting pile is generally Z-shaped; the seam is connected to the second pile plate; The limiting stakes include a first limiting stake and a second limiting stake.

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