Sewing device driven by gear rotation

Abstract

The utility model provides a suturing device driven by gear rotation. The suturing device comprises a mounting frame body, an arc-shaped suturing needle, a gear assembly, a control device and a clamping assembly. And an arc-shaped groove is formed in the mounting frame body. A transmission gear in the gear assembly rotates through the control device, due to the fact that the transmission gear is meshed with meshing teeth fixedly arranged in the circumferential direction of an arc-shaped groove, the transmission gear can move in the circumferential direction of the arc-shaped groove, and the transmission gear drives the clamping assembly to move so as to drive an arc-shaped suture needle to move to suture human tissue. As the moving track of the transmission gear is the length of the whole arc-shaped groove, the transmission gear can drive the arc-shaped suture needle to rotate by 180 degrees at a time, and therefore the frequency of operation needed for driving the arc-shaped suture needle to suture the human tissue once is reduced. Besides, the transmission gear and the meshing teeth form a structure similar to a planetary gear, and the structure is compact, high in efficiency, small in power loss, balanced in transmission and high in impact and vibration resistance, so that the driving force of the control device can be transmitted more accurately and stably.

Description

Technical Field

[0001] This application relates to the field of endoscopic minimally invasive surgery technology, and in particular to a gear-driven suturing device for suturing human mucosal tissue defects / wounds under endoscopy. Background Technology

[0002] With the development of endoscopic technology, flexible endoscopic minimally invasive surgery has been widely adopted, allowing more and more diseases to be treated through minimally invasive procedures. However, the problem of tissue defects / wounds caused by minimally invasive surgery, especially those affecting the digestive tract mucosa, is a pressing issue that needs to be addressed; the ability to efficiently and reliably suture these defects / wounds directly impacts patient prognosis.

[0003] Currently, for rigid laparoscopic minimally invasive surgery and open abdominal surgery, the main method of suturing defects / wounds is through sutures. This method is strong and does not require other auxiliary devices. Undoubtedly, it causes less damage to the body and is conducive to the healing of defects / wounds. In rigid laparoscopic minimally invasive surgery, there are many existing minimally invasive instruments for suturing defects / wounds with sutures. These instruments do not require the surgeon to manually "thread the needle," but rather to efficiently complete the "threading" and suturing by operating the instrument handle, which greatly improves operational efficiency and reduces operational difficulty. Among these existing technologies, the "C-shaped arc needle suturer" for rigid laparoscopy has received the most attention. While there are many existing technologies for this, they are limited to the field of rigid laparoscopic minimally invasive surgery. However, in the field of flexible endoscopic minimally invasive surgery, there are very few existing technologies similar to the "C-shaped arc needle suturer."

[0004] Unlike rigid endoscopes, flexible endoscopes have longer and more flexible bodies that can bend, and their working channels have smaller inner diameters. Therefore, developing a device similar to a "C-shaped arc-needle suturer" presents significant challenges. Furthermore, the technical protections afforded to "C-shaped arc-needle suturers" used with rigid endoscopes undoubtedly limit the development of flexible endoscopy technology and disease treatment. Currently, the few existing technologies using "C-shaped arc-needle suturers" with flexible endoscopes also have limitations, primarily including: each time the C-shaped arc-needle suturer is activated, the arc-shaped needle can only rotate a small angle, requiring multiple activations to complete a single suture action, resulting in low suturing efficiency; additionally, the stability and precision of the C-shaped arc-needle suturer's operation are insufficient. Utility Model Content

[0005] To achieve the above objectives, this application provides a gear-driven suturing device, comprising: a mounting frame having a suturing groove and an arcuate groove circumferentially arranged thereon, wherein meshing teeth are fixedly arranged circumferentially in the arcuate groove, and the suturing groove is configured to accommodate human tissue; an arcuate suturing needle disposed within the arcuate needle groove of the mounting frame and rotatable relative to the mounting frame, and capable of passing through the suturing groove; and a gear assembly disposed within the arcuate groove, wherein a transmission gear in the gear assembly meshes with the meshing teeth, and the transmission gear is rotatable relative to the mounting frame, thereby causing the gear assembly to move circumferentially within the arcuate groove. The system includes: a control device disposed within the mounting frame and connected to the gear assembly, the control device being configured to drive the transmission gear to rotate relative to the mounting frame; and a locking assembly disposed on the gear assembly, the locking assembly including an elastic support member and an interference member, one end of the interference member being connected to the elastic support member, and the other end of the interference member being capable of interfering with the arc-shaped suture needle; wherein, when the gear assembly drives the locking assembly to rotate in a first direction, the interference member is capable of interfering with the arc-shaped suture needle, and when the gear assembly drives the locking assembly to rotate in a second direction, the interference member separates from the arc-shaped suture needle, the first direction being opposite to the second direction.

[0006] The gear-driven sewing device described above, wherein the control device includes: a first rotating wheel rotatably mounted on the mounting frame; a transmission belt respectively sleeved on the first rotating wheel and the gear assembly; a tensioning assembly rotatably connected to the first rotating wheel and pressing against the transmission belt; and a first control cable wound around the first rotating wheel, the first control cable being configured to drive the first rotating wheel to rotate in two opposite directions.

[0007] The gear-driven sewing device described above, wherein the tensioning assembly includes: a connecting arm, one end of which is rotatably connected to the first rotating wheel; a tensioning wheel, which is disposed at the other end of the connecting arm and presses against the transmission belt; and an elastic element, which is disposed between the connecting arm and the mounting frame.

[0008] The gear-driven sewing device described above, wherein the control device includes: two steering wheels rotatably mounted on the mounting frame and respectively positioned near the two ends of the arcuate groove; and a second control cable wound around the gear assembly, the second control cable being configured to drive the transmission gear to rotate in two opposite directions; the control device is disposed within a receiving cavity of the mounting frame, a limiting member is provided between the receiving cavity and the sewing groove, and the second control cable between the steering wheels and the gear is capable of pressing against the limiting member.

[0009] In the gear-driven sewing device described above, the limiting member is a roller or a baffle.

[0010] The gear-driven sewing device described above, wherein the control device further includes: a guide wheel, the guide wheel being rotatably mounted on the mounting frame, the guide wheel being connected to the second control cable, and the guide wheel being configured to guide the second control cable after it has been turned by the steering wheel.

[0011] The gear-driven sewing device described above includes a first annular groove and a second annular groove arranged side-by-side on the gear assembly. The control device includes: a second rotating wheel rotatably mounted on the mounting frame, the second rotating wheel having a first rotating wheel groove and a second rotating wheel groove, the first rotating wheel groove corresponding to the position of the first annular groove, and the second rotating wheel groove corresponding to the position of the second annular groove; a first control line, one end of which is wound within the first annular groove, and the other end of which extends out of the mounting frame after being wound within the first rotating wheel groove, the first control line being configured to control the transmission gear to rotate along a first rotation direction; and a second control line, one end of which is wound within the second annular groove, and the other end of which extends out of the mounting frame after being wound within the second rotating wheel groove, the second control line being configured to control the transmission gear to rotate along a second rotation direction opposite to the first rotation direction.

[0012] The gear-driven sewing device described above includes a third annular groove and a fourth annular groove arranged side-by-side on the gear assembly; the control device includes a third control line and a fourth control line; the third control line is wound in the third annular groove and configured to control the transmission gear to rotate along a first rotation direction; the fourth control line is wound in the fourth annular groove and configured to control the transmission gear to rotate along a second rotation direction opposite to the first rotation direction.

[0013] The gear-driven sewing device described above includes a mounting frame comprising: a mounting shell having a receiving space; and a mounting assembly disposed within the receiving space, the sewing groove located on the mounting assembly, and the gear assembly, the control device, and the snap-fit ​​assembly disposed on the mounting assembly; wherein the mounting assembly includes: a fixing assembly comprising a first mounting plate and a fixing plate; a first needle groove being provided on the first mounting plate; and a second needle groove being provided on the fixing plate, the first needle groove and the second needle groove forming the arc-shaped needle groove; the gear assembly, the control device, and the snap-fit ​​assembly being disposed on the fixing plate or the first mounting plate.

[0014] The gear-driven stitching device described above, wherein the mounting assembly further includes a limiting structure that interferes with the first mounting plate.

[0015] As described above, in the gear-driven sewing device, the limiting structure includes a connecting part and a stop part, the stop part and the connecting part have an included angle, the limiting structure is generally L-shaped, the connecting part is connected to the mounting shell, and the stop part abuts against the first mounting plate.

[0016] In the gear-driven sewing device described above, the two oppositely arranged side walls of the receiving space are provided with snap-fit ​​grooves, and the connecting part is provided with a spring piece, which snaps into the snap-fit ​​groove.

[0017] In the gear-driven sewing device described above, a pressing plate is provided on the spring sheet, the pressing plate extending in a direction away from the connecting portion, and the pressing plate is configured to deform the spring sheet.

[0018] The gear-driven sewing device described above, wherein the mounting assembly further includes a limiting cover plate, and a mounting cavity is provided between the limiting cover plate and the fixing assembly, wherein the gear assembly, the control device and the snap-fit ​​assembly are located within the mounting cavity.

[0019] As described above, in the gear-driven sewing device, the mounting frame includes a second mounting plate, the arc-shaped groove is disposed on the second mounting plate, the second mounting plate includes a plate body and a rack, the plate body is provided with a mounting groove; the rack is fixed in the mounting groove and forms the arc-shaped groove with the groove wall of the mounting groove.

[0020] The gear-driven sewing device described above includes a gear assembly comprising two transmission gears and a connecting rod connecting the two transmission gears; two arc-shaped grooves are provided on the mounting frame along the axial direction of the connecting rod, and the two transmission gears are respectively disposed in the two arc-shaped grooves; the snap-fit ​​assembly is connected to the connecting rod.

[0021] The gear-driven sewing device described above, wherein the mounting frame includes a third mounting plate, and the arc-shaped needle groove is located on the third mounting plate; the third mounting plate includes a main plate and a cover plate;

[0022] The motherboard has a first groove; the cover plate has a flange arranged around the circumference of the stitching groove, and the flange extends towards the motherboard, the cover plate and the flange form a second groove; the cover plate covers the motherboard, the second groove and the first groove are connected to form the arc-shaped needle groove, and the flange and the groove wall of the stitching groove form the opening of the arc-shaped needle groove.

[0023] In the gear-driven sewing device described above, the mounting frame is further provided with a limiting groove, the gear assembly is provided with a limiting slider, and the limiting slider is disposed in the limiting groove.

[0024] Compared with existing technologies, the above technical solution has the following advantages:

[0025] The control device causes the transmission gear in the gear assembly to rotate. Since the transmission gear meshes with the meshing teeth fixed circumferentially in the arc-shaped groove, it moves circumferentially along the groove. This movement drives the locking assembly, which in turn moves the arc-shaped suture needle to suture the human tissue. Because the transmission gear's movement trajectory is the entire length of the arc-shaped groove, it can drive the arc-shaped suture needle to rotate 180° in a single rotation. This reduces the number of operations required to suture human tissue once, lowering the operational difficulty and improving the product's efficiency. Furthermore, the transmission gear and meshing teeth form a planetary gear-like structure. This compact structure is highly efficient, has low power loss, balanced transmission, and strong resistance to impact and vibration. This allows for more precise and stable transmission of the control device's driving force, ensuring the arc-shaped suture needle has sufficient puncture force to quickly and effectively penetrate human tissue, thus improving the product's suture efficiency and reliability. Attached Figure Description

[0026] The following figures are intended only to illustrate and explain this application and do not limit the scope of this application. Wherein:

[0027] Figure 1 This is an exploded structural diagram of the first embodiment of the gear-driven sewing device described in this application;

[0028] Figure 2 yes Figure 1 A partial cross-sectional schematic diagram of the structure of the suture device in its first state;

[0029] Figure 3 yes Figure 1 A partial cross-sectional schematic diagram of the structure of the suture device in the second state (the arc needle is driven to rotate 180°);

[0030] Figure 4 yes Figure 1 A partial structural schematic diagram of the suture device shown;

[0031] Figure 5 yes Figure 1 A schematic diagram of the structure of the first mounting plate shown in the figure;

[0032] Figure 6 yes Figure 1 A schematic diagram of the gear assembly and the snap-fit ​​assembly shown in the figure;

[0033] Figure 7 yes Figure 6 A cross-sectional view of the structure shown.

[0034] Figure 8 yes Figure 1 A schematic diagram of the structure of the limiting cover plate shown in the figure;

[0035] Figure 9 This is a schematic diagram of another embodiment of the first mounting plate of this application;

[0036] Figure 10 This is an exploded structural diagram of a second embodiment of the gear-driven sewing device described in this application;

[0037] Figure 11 yes Figure 10 A partial cross-sectional schematic diagram of the structure of the suture device in its first state;

[0038] Figure 12 yes Figure 10 A partial cross-sectional schematic diagram of the structure of the suture device in the second state (the arc needle is driven to rotate 180°);

[0039] Figure 13 yes Figure 10 A three-dimensional structural schematic diagram of the suture device shown;

[0040] Figure 14 yes Figure 13 Enlarged structural diagram of section A in the middle;

[0041] Figure 15This is an exploded structural diagram of a third embodiment of the gear-driven sewing device described in this application;

[0042] Figure 16 yes Figure 15 A partial cross-sectional schematic diagram of the structure of the suture device in its first state;

[0043] Figure 17 yes Figure 15 A partial cross-sectional schematic diagram of the structure of the suture device in the second state;

[0044] Figure 18 This is an exploded structural diagram of the fourth embodiment of the gear rotation driven sewing device described in this application;

[0045] Figure 19 yes Figure 18 A three-dimensional structural schematic diagram of the suture device shown;

[0046] Figure 20 yes Figure 19 Enlarged structural diagram of section B in the middle;

[0047] Figure 21 yes Figure 18 A schematic diagram of the structure of the mounting shell in the middle;

[0048] Figure 22 yes Figure 21 Enlarged structural diagram of section C;

[0049] Figure 23 This is an exploded structural diagram of the fifth embodiment of the gear rotation driven sewing device described in this application;

[0050] Figure 24 yes Figure 23 A partial cross-sectional schematic diagram of the structure of the suture device in its first state;

[0051] Figure 25 yes Figure 23 A partial cross-sectional schematic diagram of the structure of the suture device in the second state (the arc needle is driven to rotate 180°);

[0052] Figure 26 This is an exploded structural diagram of the sixth embodiment of the gear rotation driven sewing device described in this application;

[0053] Figure 27 yes Figure 26 A partial cross-sectional schematic diagram of the structure of the suture device in its first state;

[0054] Figure 28 yes Figure 26 A partial cross-sectional schematic diagram of the structure of the suture device in the second state (the arc needle is driven to rotate 180°).

[0055] Explanation of icon numbers:

[0056] 10. Mounting frame; 11. Seaming groove; 12. Arc groove; 13. Engaging teeth;

[0057] 14. Mounting housing; 141. Accommodation space; 142. Snap-fit ​​slot;

[0058] 15. Mounting components; 151. First mounting plate; 152. Fixing plate;

[0059] 153. Limiting structure; 1531. Connecting part; 1532. Stop part; 1533. Spring piece; 1534. Pressing plate; 154. Limiting cover plate;

[0060] 16. Second mounting plate; 161. Plate body; 162. Rack;

[0061] 17. Third mounting plate; 171. Main board; 172. Cover plate; 173. First slot; 174. Flanged edge; 175. Second slot;

[0062] 18. Limiting slide groove;

[0063] 19. Arc-shaped needle groove; 191. Opening;

[0064] 20. Curved suture needle;

[0065] 30. Gear assembly; 31. Transmission gear; 32. Connecting rod; 33. First annular groove; 34. Second annular groove; 35. Third annular groove; 36. Fourth annular groove; 37. Limiting slider;

[0066] 40. Control device;

[0067] 411. First pulley; 412. Drive belt; 413. Tensioning assembly; 4131. Connecting arm; 4132. Tensioning pulley; 4133. Elastic element; 414. First control cable;

[0068] 421. Steering wheel; 422. Second control cable; 423. Limiting element; 424. Guide wheel;

[0069] 431. Second rotating wheel; 432. First control line; 433. Second control line; 434. First rotating wheel groove; 435. Second rotating wheel groove;

[0070] 441. Third control line; 442. Fourth control line;

[0071] 50. Snap-fit ​​assembly; 51. Elastic support component; 52. Interference component;

[0072] 100. Endoscope. Detailed Implementation

[0073] 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.

[0074] 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.

[0075] 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.

[0076] like Figures 1 to 28 As shown, the gear-driven suturing device provided in this application includes: a mounting frame 10, an arc-shaped suturing needle 20, a gear assembly 30, a control device 40, and a snap-fit ​​assembly 50.

[0077] The mounting frame 10 is provided with a suture groove 11 and an arc-shaped groove 12 arranged around the suture groove 11. Engaging teeth 13 are fixedly arranged around the arc-shaped groove 12. The suture groove 11 is configured to accommodate human tissue. The mounting frame 10 can be fitted onto the endoscope 100 through the mounting shell 14.

[0078] The arc-shaped suture needle 20 is disposed in the arc-shaped needle groove 19 of the mounting frame 10 and is rotatable relative to the mounting frame 10, and the arc-shaped suture needle 20 can pass through the suture groove 11.

[0079] The gear assembly 30 is disposed in the arc-shaped groove 12. The transmission gear 31 in the gear assembly 30 meshes with the meshing gear 13. The transmission gear 31 can rotate relative to the mounting frame 10 so that the gear assembly 30 can move circumferentially in the arc-shaped groove 12.

[0080] The control device 40 is disposed within the mounting frame 10 and connected to the gear assembly 30. The control device 40 is configured to drive the transmission gear 31 to rotate relative to the mounting frame 10.

[0081] The snap-fit ​​assembly 50 is disposed on the gear assembly 30. The snap-fit ​​assembly 50 includes an elastic support member 51 and an interference member 52. One end of the interference member 52 is connected to the elastic support member 51, and the other end of the interference member 52 can interfere with the arc-shaped suture needle 20.

[0082] When the gear assembly 30 drives the snap-fit ​​assembly 50 to rotate in the first direction, the interference member 52 can interfere with the arc-shaped suture needle 20. When the gear assembly 30 drives the snap-fit ​​assembly 50 to rotate in the second direction, the interference member 52 separates from the arc-shaped suture needle 20. The first direction and the second direction are opposite.

[0083] The operator controls the transmission gear 31 in the gear assembly 30 to rotate along the shaft of the transmission gear 31 in the first rotation direction via the control device 40. Since the transmission gear 31 meshes with the meshing teeth 13 fixedly arranged circumferentially on the arc-shaped groove 12, the transmission gear 31 simultaneously moves along the first circumferential direction of the arc-shaped groove 12. The transmission gear 31 drives the locking assembly 50 to move from its initial position along the first direction. At this time, the locking assembly 50 interferes with the arc-shaped suture needle 20, causing the locking assembly 50 to rotate the arc-shaped suture needle 20 180° relative to the mounting frame 10, so that the arc-shaped suture needle 20 passes through the human tissue. After the locking assembly 50 reaches its final position, the operator controls the transmission gear 31 in the gear assembly 30 to rotate along the second rotation direction via the control device 40, so that the transmission gear 31... 31 moves along the second circumferential direction of the arc groove 12, and the locking component 50 separates from the arc suture needle 20 so that the locking component 50 returns to its initial position. The above operation is repeated so that the arc suture needle 20 rotates one revolution relative to the mounting frame 10 to complete one "threading" operation relative to the human tissue, so that the suture passes through the human tissue. Similarly, the suture rotates one revolution relative to the mounting frame 10 multiple times to achieve suturing of human tissue defects / wounds. Since the movement trajectory of the transmission gear 31 is the entire length of the arc groove 12, the transmission gear 31 can drive the arc suture needle 20 to rotate 180° in one go, thereby reducing the number of operations required to drive the arc suture needle 20 to suture human tissue once, reducing the difficulty of product operation, and improving product efficiency.

[0084] In addition, the transmission gear 31 and the meshing gear 13 form a structure similar to a planetary gear. The above structure is compact, efficient, has low power loss, balanced transmission, and strong resistance to impact and vibration. This enables more precise and stable transmission of the driving force of the control device 40, so that the arc-shaped suture needle 20 has sufficient puncture force, allowing the arc-shaped suture needle 20 to quickly and effectively penetrate human tissue, thereby improving the suturing efficiency and implementation reliability of the product.

[0085] like Figures 5 to 8 As shown in one embodiment of this application, the gear assembly 30 includes two transmission gears 31 and a connecting rod 32 connecting the two transmission gears 31. Along the axial direction of the connecting rod 32, the mounting frame 10 is provided with two arc-shaped grooves 12, and the two transmission gears 31 are respectively disposed within the two arc-shaped grooves 12. Specifically, the first mounting plate 151 is provided with one arc-shaped groove 12, and the fixing plate 15 is provided with another arc-shaped groove 12.

[0086] The snap-fit ​​assembly 50 is connected to the connecting rod 32.

[0087] The two transmission gears 31 limit and guide the gear assembly 30, preventing the gear assembly 30 from dislodging from the arc groove 12, thus ensuring the stability of the gear assembly 30's operation and improving the product's reliability.

[0088] like Figure 9 As shown, in one embodiment of this application, the mounting frame 10 includes a second mounting plate 16.

[0089] An arc-shaped groove 12 is provided on the second mounting plate 16, which includes a plate body 161 and a rack 162. The plate body 161 is provided with a mounting groove. Depending on the manufacturing process, it is not limited to integral molding. The pre-machined rack 162 can be assembled onto the plate body 161 to form matching meshing teeth 13.

[0090] The rack 162 is fixed in the mounting groove and forms an arc groove 12 with the groove wall of the mounting groove.

[0091] The second mounting plate 16 is divided into two parts, which can be manufactured separately, thereby reducing the manufacturing difficulty of the second mounting plate 16 and thus reducing the production cost of the product.

[0092] like Figure 13 and Figure 14 As shown, in one embodiment of this application, the mounting frame 10 includes a third mounting plate 17, and an arc-shaped pin groove 19 is located on the third mounting plate 17.

[0093] The third mounting plate 17 includes a main board 171 and a cover plate 172.

[0094] The first slot 173 is located on motherboard 171.

[0095] The cover plate 172 is provided with a flange 174 arranged around the stitching groove 11, and the flange 174 extends towards the main plate 171. The cover plate 172 and the flange 174 form a second groove 175.

[0096] The cover plate 172 is placed on the main plate 171. The second groove 175 is connected to the first groove 173 to form an arc-shaped needle groove 19. The flange 174 and the groove wall of the sewing groove 11 form the opening 191 of the arc-shaped needle groove 19.

[0097] The above structure allows the opening 191 of the arc-shaped needle groove 19 to be open and oriented toward the working channel and lens of the endoscope 100, so that when the arc-shaped suture needle 20 rotates in the arc-shaped needle groove 19, the suture connected to the arc-shaped suture needle 20 can smoothly exit the arc-shaped needle groove 19, avoiding interference between the suture and the arc-shaped suture needle 20 during rotation, thereby reducing the probability of the suture getting tangled in the arc-shaped needle groove 19 and ensuring that the arc-shaped suture needle 20 can successfully suture human tissue.

[0098] like Figures 1 to 3 , Figures 10 to 12 , Figures 15 to 17 , Figures 23 to 25 , Figures 26 to 28 As shown, in one embodiment of this application, the mounting frame 10 includes a mounting shell 14 and a mounting assembly 15.

[0099] The mounting housing 14 is provided with a receiving space 141. The mounting housing 14 can be fitted onto the endoscope 100. The mounting housing 14 is an assembly structure, not limited to those mentioned in this technology. Different structures can be selected according to the assembly method of the mounting component 15. For example, the slot-type structure mentioned in this technology can also be a direct welding or riveting assembly of the mounting component 15.

[0100] Mounting assembly 15 is disposed within receiving space 141 and fixedly connected to mounting shell 14. Stitching groove 11 is located on mounting assembly 15. Gear assembly 30, control device 40 and snap-fit ​​assembly 50 are disposed on mounting assembly 15.

[0101] Among them, the installation component 15 includes: a fixing component.

[0102] The fixing components include a first mounting plate 151 and a fixing plate 152.

[0103] The first mounting plate 151 is provided with a first pin groove.

[0104] A second needle groove is provided on the fixing plate 152, and the first needle groove and the second needle groove form an arc-shaped needle groove 19.

[0105] The gear assembly 30, the control device 40, and the snap-fit ​​assembly 50 are mounted on the fixed plate 152 or the first mounting plate 151.

[0106] The mounting component 15 in the sewing device is relatively small in size, and multiple plates together constitute the mounting component 15, which provides a large installation space. This facilitates the installation of other components such as the gear assembly 30, the control device 40, and the snap-fit ​​assembly 50, thereby improving the space utilization of the product and making the product structure more compact.

[0107] In one embodiment of this application, the mounting component 15 further includes a limiting structure 153.

[0108] The limiting structure 153 is connected to the mounting shell 14 and interferes with the first mounting plate 151. The limiting structure 153 serves to fix the first mounting plate 151; the limiting structure 153 can be removed, thereby allowing the first mounting plate 151 to be disassembled when needed for replacing the new arc-shaped suture needle 20 and for detection when the suture needle 20 becomes stuck.

[0109] like Figures 18 to 22 As shown, in a specific embodiment of this application, the limiting structure 153 is a limiting plate, which includes a connecting part 1531 and a stop part 1532. The stop part 1532 and the connecting part 1531 have an included angle. The limiting structure 153 is generally L-shaped. The connecting part 1531 is movably connected to the mounting shell 14, and the stop part 1532 abuts against the first mounting plate 151.

[0110] The limiting plate has a large contact area, which enables the first mounting plate 151 to be fixed reliably.

[0111] like Figures 18 to 22 As shown, in one embodiment of this application, two oppositely arranged side walls of the accommodating space 141 are provided with snap-fit ​​grooves 142, and a spring piece 1533 is provided on the connecting part 1531, which snaps into the snap-fit ​​groove 142. That is, the limiting structure 153 snaps into the mounting shell 14.

[0112] The snap-fit ​​connection method is simple and easy to assemble, thereby improving the product assembly efficiency and reducing the product manufacturing cost.

[0113] In one embodiment of this application, the mounting assembly 15 further includes a limiting cover 154.

[0114] An installation cavity is provided between the limiting cover plate 154 and the fixing component, and the gear assembly 30, the control device 40 and the snap-fit ​​assembly 50 are located in the installation cavity.

[0115] The limiting cover 154 serves two purposes: firstly, it limits the gear assembly 30, control device 40, and snap-fit ​​assembly 50, preventing them from detaching from the mounting assembly 15; secondly, it simplifies the assembly structure of the gear assembly 30, control device 40, and snap-fit ​​assembly 50, making disassembly and assembly easier.

[0116] like Figures 18 to 22 As shown, in one embodiment of this application, a pressing plate 1534 is provided on the spring piece 1533. The pressing plate 1534 extends in a direction away from the connecting portion 1531 and is configured to drive the spring piece 1533 to deform.

[0117] When it is necessary to remove the first mounting plate 151, an action is applied to the pressing plate 1534, which causes the spring piece 1533 to deform so that the spring piece 1533 moves out of the snap-fit ​​groove 142. Then the pressing plate 1534 is separated from the mounting shell 14, and the first mounting plate 151 is removed from the direction perpendicular to the mounting assembly 15.

[0118] like Figure 2 and Figure 3 , Figure 11 and Figure 12 , Figure 16 and Figure 17 , Figure 24 and Figure 25 , Figure 27 and Figure 28 As shown, in one embodiment of this application, the mounting frame 10 is further provided with a limiting groove 18, and the gear assembly 30 is provided with a limiting slider 37, which is disposed in the limiting groove 18. The limiting slider 37 can be a structure extending from the shaft of the gear 31.

[0119] The aforementioned structure limits and guides the gear assembly 30, preventing it from dislodging from the arc groove 12, thereby ensuring the stability of the gear assembly 30's operation and improving the product's reliability.

[0120] The following figures illustrate several embodiments of the control device.

[0121] Example 1

[0122] like Figures 1 to 4 As shown, the control device 40 includes: a first rotating wheel 411, a transmission belt 412, a tensioning assembly 413, and a first control cable 414.

[0123] The first rotating wheel 411 is rotatably mounted on the mounting frame 10.

[0124] The transmission belt 412 is respectively fitted onto the first rotating wheel 411 and the gear assembly 30.

[0125] The tensioning assembly 413 is rotatably connected to the first rotating wheel 411 and presses against the transmission belt 412.

[0126] A first control cable 414 is wound around a first rotating wheel 411 and is configured to drive the first rotating wheel 411 to rotate in two opposite directions.

[0127] The operator drags the first control cable 414, which drives the first rotating wheel 411 to rotate. The first rotating wheel 411 drives the transmission belt 412 to move, and the transmission belt 412 drives the transmission gear 31 to rotate. The transmission gear 31 meshes with the meshing teeth 13, so the transmission gear 31 moves circumferentially along the arc groove 12 to drive the snap-fit ​​assembly 50 to move. During the circumferential movement of the transmission gear 31 along the arc groove 12, the tensioning assembly 413 rotates relative to the first rotating wheel 411 and always presses against the transmission belt 412 to ensure that the transmission belt 412 is always in a taut state, so that the power is effectively transmitted between the first rotating wheel 411 and the gear assembly 30.

[0128] The transmission method of the conveyor belt has the advantages of smooth transmission, high transmission efficiency and good reliability, so that the power between the first rotating wheel 411 and the gear assembly 30 can be effectively transmitted, thereby enabling more precise and stable control of the movement of the arc-shaped suture needle 20, so that the arc-shaped suture needle 20 has sufficient puncture force, so that the arc-shaped suture needle 20 can quickly and effectively penetrate human tissue, thereby improving the suturing efficiency and implementation reliability of the product.

[0129] like Figure 4 As shown, in one embodiment of this application, the tensioning assembly 413 includes: a connecting arm 4131, a tensioning wheel 4132, and an elastic element 4133.

[0130] One end of the connecting arm 4131 is rotatably connected to the first rotating wheel 411.

[0131] The tensioner 4132 is located at the other end of the connecting arm 4131 and presses against the transmission belt 412.

[0132] The elastic element 4133 is disposed between the connecting arm 4131 and the mounting frame 10.

[0133] During the circumferential movement of the transmission gear 31 along the arc groove 12, the elastic element 4133 has elasticity, causing the connecting arm 4131 to rotate relative to the first rotating wheel 411 with the tensioning wheel 4132, so that the tensioning wheel 4132 always presses against the transmission belt 412, ensuring that the transmission belt 412 is always in a taut state. Thus, the power is effectively transmitted between the first rotating wheel 411 and the gear assembly 30, thereby enabling more precise and stable control of the movement of the arc suture needle 20, giving the arc suture needle 20 sufficient puncture force so that the arc suture needle 20 can quickly and effectively penetrate human tissue, improving the suturing efficiency and implementation reliability of the product.

[0134] Example 2

[0135] like Figures 10 to 12 , Figures 15 to 17 As shown, the control device 40 includes two steering wheels 421 and a second control cable 422.

[0136] Two steering wheels 421 are rotatably mounted on the mounting frame 10, and the two steering wheels 421 are respectively located near the two ends of the arc-shaped groove 12.

[0137] The second control cable 422 is wound around the gear assembly 30 and is configured to drive the transmission gear 31 to rotate in two opposite directions.

[0138] The control device 40 is installed in the receiving cavity of the mounting frame 10. A limiting member 423 is provided between the receiving cavity and the sewing groove 11. The second control cable 422 between the steering wheel 421 and the gear can press against the limiting member 423.

[0139] The operator drags the second control cable 422. Since the second control cable 422 is directly connected to the gear assembly 30 after being turned by the steering wheel 421, it directly drives the transmission gear 31 to rotate. The transmission gear 31 meshes with the meshing teeth 13, causing it to move circumferentially along the arc-shaped groove 12, thus moving the locking assembly 50. The control device 40 has a simple structure and reliable drive. The force of the second control cable 422 can directly act on the transmission gear 31, enabling the arc-shaped suture needle 20 to have sufficient puncture force, allowing it to quickly and effectively penetrate human tissue, improving the suturing efficiency and reliability of the product. During the movement of the second control cable 422, the limiting member 423 keeps it confined within the receiving cavity, preventing it from entering the suture groove 11 and affecting the movement of the arc-shaped suture needle 20, thereby ensuring effective suturing of human tissue by the arc-shaped suture needle 20.

[0140] like Figures 10 to 12 , Figures 15 to 17As shown, in one embodiment of this application, the limiting member 423 is a roller (e.g., Figures 15 to 17 (as shown) or baffle (such as) Figures 10 to 12 ).

[0141] The rollers and the second control cable 422 experience rolling friction, which reduces the wear rate of the second control cable 422 during use and extends its service life. Simultaneously, the rollers improve the smoothness of the second control cable 422's movement. The baffle can be manufactured integrally with the mounting frame 10, reducing the need for separate installation of the limiting component 423 and improving product assembly efficiency.

[0142] like Figures 10 to 12 , Figures 15 to 17 As shown, in one embodiment of this application, the control device 40 further includes a guide wheel 424.

[0143] The guide wheel 424 is rotatably mounted on the mounting frame 10. The guide wheel 424 is connected to the second control cable 422. The guide wheel 424 is configured to guide the second control cable 422 after it has been turned by the steering wheel 421.

[0144] The guide wheel 424 guides the second control cable 422 so that the second control cable 422 extends out of the mounting shell 14 from the set direction. In addition, the guide wheel 424 and the second control cable 422 have rolling friction, which reduces the wear rate of the second control cable 422 during use and extends the service life of the second control cable 422.

[0145] Example 3

[0146] like Figures 23 to 25 As shown, the gear assembly 30 has a first annular groove 33 and a second annular groove 34 arranged side by side.

[0147] The control device 40 includes: a second rotating wheel 431, a first control line 432, and a second control line 433.

[0148] The second rotating wheel 431 is rotatably mounted on the mounting frame 10. The second rotating wheel 431 is provided with a first rotating wheel groove 434 and a second rotating wheel groove 435. The position of the first rotating wheel groove 434 corresponds to the position of the first annular groove 33, and the position of the second rotating wheel groove 435 corresponds to the position of the second annular groove 34.

[0149] One end of the first control line 432 is coiled inside the first annular groove 33, and the other end of the first control line 432 is coiled around the first rotary groove 434 and extends out of the mounting frame 10. The first control line 432 is then equipped with...

[0150] The transmission gear 31 is configured to rotate in the first rotation direction. Simultaneously, since the transmission gear 31 meshes with the meshing teeth 13, it moves circumferentially along the arc-shaped groove 12. One end of the second control line 433 is coiled within the second annular groove 34, and the other end is coiled around the second wheel groove 435 and extends out of the mounting frame 10. The second control line 433 is configured to control the transmission gear 31 to rotate in a second rotation direction opposite to the first rotation direction. The arrangement of the second wheel 431 facilitates the transmission of driving force to the transmission gear 31 via the first control line 432 and the second control line 433.

[0151] The operator drags the first control line 432, which drives the second rotating wheel 431 to rotate. The second rotating wheel 431, through the first control line 432, drives the transmission gear 31 to rotate in the first rotation direction. During this process, the second control line 433 is coiled in the second annular groove 34 and the second rotating wheel groove 435 respectively. At the same time, the transmission gear 31 meshes with the meshing teeth 13, so that the transmission gear 31 moves along the circumference of the arc groove 12 in the first direction to drive the snap-fit ​​assembly 50 to move. Conversely, when the operator drags the second control line 433, the second control line 433 drives the second rotating wheel 431 to rotate. 431 drives the transmission gear 31 to rotate in the second rotation direction via the second control line 433. During this process, the first control line 432 is coiled around the first annular groove 33 and the first rotating wheel groove 434 respectively. At the same time, the transmission gear 31 moves along the second direction along the circumference of the arc groove 12 to drive the snap-fit ​​assembly 50 to move. The control device 40 has a compact structure and high transmission efficiency, which can drive the transmission gear 31 to rotate more accurately and stably, so that the arc suture needle 20 has sufficient puncture force, so that the arc suture needle 20 can quickly and effectively penetrate human tissue, thereby improving the suturing efficiency and implementation reliability of the product.

[0152] Example 4

[0153] like Figures 26 to 28 As shown, the gear assembly 30 has a third annular groove 35 and a fourth annular groove 36 arranged side by side.

[0154] The control device 40 includes a third control line 441 and a fourth control line 442.

[0155] The third control line 441 is coiled inside the third annular groove 35, and the third control line 441 is configured to control the transmission gear 31 to rotate along the first rotation direction.

[0156] The fourth control line 442 is wound inside the fourth annular groove 36. The fourth control line 442 is configured to control the transmission gear 31 to rotate in a second rotation direction opposite to the first rotation direction.

[0157] The operator drags the first control line 432, and the third control line 441 drives the transmission gear 31 to rotate in the first rotation direction. During this process, the fourth control line 442 is coiled in the fourth annular groove 36. At the same time, the transmission gear 31 meshes with the meshing teeth 13, so that the transmission gear 31 moves along the circumference of the arc groove 12 in the first direction to drive the snap-fit ​​assembly 50 to move. Conversely, the operator drags the fourth control line 442, and the fourth control line 442 drives the transmission gear 31 to rotate in the second rotation direction. During this process, the third control line 441 is coiled in the third annular groove 35. At the same time, the transmission gear 31 moves along the circumference of the arc groove 12 in the second direction to drive the snap-fit ​​assembly 50 to move. The above-mentioned control device 40 has a simple structure and no complex combination structure, which greatly reduces the manufacturing difficulty and cost.

[0158] In the description of this application, it should be noted that the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0159] 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.

[0160] 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. A gear-driven sewing device, characterized in that, The gear-driven sewing device includes: The mounting frame is provided with a suture groove and an arc-shaped groove arranged around the suture groove. Engaging teeth are fixedly arranged around the arc-shaped groove. The suture groove is configured to accommodate human tissue. An arc-shaped suture needle is disposed in an arc-shaped needle groove of the mounting frame and is rotatable relative to the mounting frame, and the arc-shaped suture needle can pass through the suture groove; A gear assembly is disposed within the arc-shaped groove, wherein a transmission gear in the gear assembly meshes with the meshing teeth, and the transmission gear is rotatable relative to the mounting frame to allow the gear assembly to move circumferentially within the arc-shaped groove. A control device, disposed within the mounting frame and connected to the gear assembly, is configured to drive the transmission gear to rotate relative to the mounting frame; and A snap-fit ​​assembly is disposed on the gear assembly. The snap-fit ​​assembly includes an elastic support and an interference member. One end of the interference member is connected to the elastic support, and the other end of the interference member can interfere with the arc-shaped suture needle. When the gear assembly drives the snap-fit ​​assembly to rotate in the first direction, the interference member can interfere with the arc-shaped suture needle. When the gear assembly drives the snap-fit ​​assembly to rotate in the second direction, the interference member separates from the arc-shaped suture needle. The first direction is opposite to the second direction.

2. The gear-driven sewing device according to claim 1, characterized in that, The control device includes: a first rotating wheel, which is rotatably mounted on the mounting frame; A transmission belt, which is respectively fitted onto the first rotating wheel and the gear assembly; A tensioning assembly, rotatably connected to the first pulley and pressing against the transmission belt; and A first control cable is wound around the first wheel and is configured to drive the first wheel to rotate in two opposite directions.

3. The gear-driven sewing device according to claim 2, characterized in that, The tensioning assembly includes: a connecting arm, one end of which is rotatably connected to the first rotating wheel; A tensioner pulley, disposed at the other end of the connecting arm and pressing against the drive belt; and An elastic element is disposed between the connecting arm and the mounting frame.

4. The gear-driven sewing device according to claim 1, characterized in that, The control device includes: two steering wheels, which are rotatably mounted on the mounting frame and respectively positioned near both ends of the arc-shaped groove; and A second control cable is wound around the gear assembly and is configured to drive the transmission gear to rotate in two opposite directions. The control device is disposed in the receiving cavity of the mounting frame, and a limiting member is provided between the receiving cavity and the stitching groove. The second control cable between the steering wheel and the gear can press against the limiting member.

5. The gear-driven sewing device according to claim 4, characterized in that, The limiting component is a roller or a baffle.

6. The gear-driven sewing device according to claim 4, characterized in that, The control device further includes a guide wheel, which is rotatably mounted on the mounting frame and connected to the second control cable. The guide wheel is configured to guide the second control cable after it has been turned by the steering wheel.

7. The gear-driven sewing device according to claim 1, characterized in that, The gear assembly has a first annular groove and a second annular groove arranged side by side. The control device includes: a second rotating wheel, which is rotatably mounted on the mounting frame. The second rotating wheel is provided with a first rotating wheel groove and a second rotating wheel groove. The position of the first rotating wheel groove corresponds to the position of the first annular groove, and the position of the second rotating wheel groove corresponds to the position of the second annular groove. A first control line, one end of which is coiled within the first annular groove, and the other end of which is coiled around the first rotating wheel groove and extends out of the mounting frame, the first control line being configured to control the transmission gear to rotate along a first rotation direction; and The second control line has one end coiled in the second annular groove and the other end coiled in the second wheel groove and extending out of the mounting frame. The second control line is configured to control the transmission gear to rotate in a second rotation direction opposite to the first rotation direction.

8. The gear-driven sewing device according to claim 1, characterized in that, The gear assembly has a third annular groove and a fourth annular groove arranged side by side. The control device includes a third control line and a fourth control line; The third control line is wound in the third annular groove, and the third control line is configured to control the transmission gear to rotate along the first rotation direction; The fourth control line is wound inside the fourth annular groove, and the fourth control line is configured to control the transmission gear to rotate in a second rotation direction opposite to the first rotation direction.

9. The gear-driven sewing device according to any one of claims 1 to 8, characterized in that, The mounting frame includes: a mounting shell, wherein the mounting shell is provided with a receiving space; and The mounting assembly is disposed within the receiving space, the stitching groove is located on the mounting assembly, and the gear assembly, the control device, and the snap-fit ​​assembly are disposed on the mounting assembly; The mounting assembly includes a fixing assembly, which includes a first mounting plate and a fixing plate. The first mounting plate is provided with a first pin groove; The fixing plate is provided with a second needle groove, and the first needle groove and the second needle groove form the arc-shaped needle groove; The gear assembly, the control device, and the snap-fit ​​assembly are disposed on the fixed plate or the first mounting plate.

10. The gear-driven sewing device according to claim 9, characterized in that, The mounting assembly further includes a limiting structure that interferes with the first mounting plate.

11. The gear-driven sewing device according to claim 10, characterized in that, The limiting structure includes a connecting part and a stop part. The stop part and the connecting part have an included angle. The limiting structure is generally "L" shaped. The connecting part is connected to the mounting shell, and the stop part abuts against the first mounting plate.

12. The gear-driven sewing device according to claim 11, characterized in that, The two opposite side walls of the accommodating space are provided with snap-fit ​​grooves, and the connecting part is provided with a spring piece, which snaps into the snap-fit ​​groove.

13. The gear-driven sewing device according to claim 12, characterized in that, The spring sheet is provided with a pressing plate, which extends in a direction away from the connecting part, and the pressing plate is configured to drive the spring sheet to deform.

14. The gear-driven sewing device according to claim 9, characterized in that, The mounting assembly also includes a limiting cover plate, and a mounting cavity is provided between the limiting cover plate and the fixing assembly. The gear assembly, the control device and the snap-fit ​​assembly are located in the mounting cavity.

15. The gear-driven sewing device according to any one of claims 1 to 8, characterized in that, The mounting frame includes a second mounting plate, and the arc-shaped groove is disposed on the second mounting plate. The second mounting plate includes a plate body and a rack, and the plate body is provided with the mounting groove. The rack is fixed in the mounting groove and forms the arc-shaped groove with the groove wall of the mounting groove.

16. The gear-driven sewing device according to any one of claims 1 to 8, characterized in that, The gear assembly includes two transmission gears and a connecting rod connecting the two transmission gears; along the axial direction of the connecting rod, the mounting frame is provided with two arc-shaped grooves, and the two transmission gears are respectively disposed in the two arc-shaped grooves; The snap-fit ​​assembly is connected to the connecting rod.

17. The gear-driven sewing device according to any one of claims 1 to 8, characterized in that, The mounting frame includes a third mounting plate, and the arc-shaped pin groove is located on the third mounting plate; the third mounting plate includes a main plate and a cover plate; The motherboard has a first slot; The cover plate is provided with a flange arranged circumferentially along the stitching groove, and the flange extends toward the main board, the cover plate and the flange forming a second groove; The cover plate is placed on the main board, the second groove is connected to the first groove to form the arc-shaped needle groove, and the flange and the groove wall of the sewing groove form the opening of the arc-shaped needle groove.

18. The gear-driven sewing device according to any one of claims 1 to 8, characterized in that, The mounting frame is also provided with a limiting groove, and the gear assembly is provided with a limiting slider, which is disposed in the limiting groove.

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