Suturer handle structure and endoscope kit

Abstract

This application discloses a suture handle structure and an endoscope kit, belonging to the field of medical device technology. The suture handle structure includes a housing, a drive assembly, a transmission assembly, and an output assembly. At least a portion of the drive assembly is disposed within the housing, and the drive assembly includes a knob disposed outside the housing. The transmission assembly is disposed within the housing and connected to the drive assembly. The output assembly is disposed on one side of the housing in a first direction and connected to the transmission assembly. The knob drives the transmission assembly, causing the transmission assembly to rotate at least a portion of the output assembly. This structure places the knob, the power input component, outside the housing, facilitating direct force application by the operator. Power transmission is completed simply by rotating the knob, enabling the suture structure connected to the output assembly to begin operation. This makes operation more direct and effortless, effectively improving the ease of operation and efficiency of the suture handle.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a suture handle structure and an endoscope kit. Background Technology

[0002] An endoscope is a medical device that enters the body through natural cavities or minimally invasive incisions for visual examination and treatment. It is widely used in gastroenterology, respiratory medicine, and urology. Common types include gastroscopes, colonoscopes, and duodenoscopes. In some surgeries, medical staff need to use the endoscope in conjunction with a suture handle. However, the suture handle is not always easy to operate, which can affect the efficiency of suture use. Summary of the Invention

[0003] This application provides a suture handle and its operating method to solve the technical problem that the suture handle is not convenient to operate.

[0004] To achieve the above objectives, according to a first aspect of this application, a suture handle structure is provided, comprising: case; A drive assembly, at least partially disposed within the housing, the drive assembly including a knob disposed outside the housing; A transmission assembly is disposed within the housing and connected to the drive assembly; An output component is disposed on one side of the housing in the first direction and is connected to the transmission component; The knob drives the transmission assembly, causing the transmission assembly to rotate at least a portion of the output assembly.

[0005] In some embodiments, the drive assembly includes a connector, at least a portion of which is disposed within the housing and connected to the transmission assembly; The transmission assembly includes: A first transmission member is arranged around the connector and connected to the connector, so that the connector drives the first transmission member to rotate. The second transmission component is connected to the output component and meshes with the first transmission component, so that the first transmission component drives the output component to rotate through the second transmission component. The number of teeth on the first transmission component is different from the number of teeth on the second transmission component.

[0006] In some embodiments, the connector includes: A bushing portion is at least partially disposed within the housing and rotatably connected to the housing; the bushing portion is connected to the knob. A flange portion is connected to one end of the bushing portion away from the knob component. The flange portion protrudes radially from the bushing portion and has multiple through holes, which are arranged at intervals along the circumference of the flange portion. Multiple rolling parts, each of the rolling parts being disposed within one of the through holes; At least a portion of the first transmission member is disposed on the side of the flange portion away from the knob portion and abuts against the flange portion. The first transmission member has a plurality of grooves on the side facing the flange portion, and a portion of each rolling part is embedded in one of the grooves. The rolling part is configured such that when the resistance experienced by the first transmission member is greater than a preset resistance, the rolling part can disengage from the groove.

[0007] In some embodiments, the bushing portion has a connecting hole; the connector further includes: A first rotating shaft portion is at least partially disposed within the housing. One end of the first rotating shaft portion is rotatably connected to the housing, and the other end of the first rotating shaft portion is embedded in the connecting hole. A flange portion protrudes radially from the first rotating shaft portion. At least a portion of the first transmission member is disposed around the first rotating shaft portion and is rotatably connected to the first rotating shaft portion.

[0008] In some embodiments, the first transmission member includes: A rotating part is disposed on one side of the flange portion and abuts against the flange portion. The rotating part is disposed around the first rotating shaft portion and is rotatable relative to the first rotating shaft portion. A plurality of the grooves are disposed on the side of the rotating part facing the flange portion. A first engaging portion is arranged around the connector and connected to the rotating portion. The first engaging portion engages with the second transmission member. The number of teeth on the first engaging portion is different from the number of teeth on the second transmission member.

[0009] In some embodiments, the first rotating shaft portion is provided with a boss, the boss being located on the side of the rotating portion opposite to the flange portion and spaced apart from the rotating portion; the first transmission member further includes: A first bearing portion is arranged around the first rotating shaft portion. One side of the first bearing portion abuts against the side of the rotating portion away from the flange portion, and the other side of the first bearing portion abuts against the boss.

[0010] In some embodiments, a gap is formed between the first engaging portion and the connector, the gap extending circumferentially along the connector; The suture handle structure also includes a torque adjustment component, which is disposed inside the housing and located on the side of the flange portion away from the rotating portion. The torque adjustment component is used to apply a preset pressure to the flange portion.

[0011] In some embodiments, the torque regulating component includes: The adjustment part is partially embedded in the gap and is threadedly connected to the first engagement part; An elastic part is disposed within the gap. One end of the elastic part abuts against the adjustment part, and the other end of the elastic part is used to apply a preset extrusion force to the flange part so that the preset resistance is generated between the flange part and the rotating part. The rolling part is kept embedded in the groove under the action of the preset extrusion force of the elastic part, and when the resistance received by the first transmission member is greater than the preset resistance, the rolling part can disengage from the groove.

[0012] In some embodiments, the torque regulating component further includes: The second bearing portion is arranged around the connector and is located on the side of the flange portion away from the rotating portion, and the second bearing portion abuts against the flange portion; The end of the elastic part away from the adjustment part abuts against the second bearing part, and the elastic part squeezes the flange part through the second bearing part.

[0013] In some embodiments, the orthographic projection of the rolling portion onto a plane perpendicular to the axial direction of the bushing portion is at least partially located on the second bearing portion.

[0014] In some embodiments, the adjustment portion includes a plurality of push teeth, the plurality of push teeth being arranged at circumferential intervals along the adjustment portion, and the push teeth being disposed outside the gaps; The housing includes a body portion and a cover portion. The body portion has a receiving cavity and an opening communicating with the receiving cavity. The torque adjustment component is disposed in the receiving cavity, and the pushing tooth is disposed close to the opening. The cover portion covers the opening and is detachably connected to the body portion.

[0015] In some embodiments, the second transmission member includes: The second rotating shaft is disposed inside the housing and is rotatably connected to the housing; The second meshing part is arranged around the second rotating shaft part and connected to the second rotating shaft part. The second meshing part meshes with the first meshing part. The number of teeth on the second meshing part is different from the number of teeth on the first meshing part. The third engagement portion is arranged around the second rotating shaft portion and connected to the second rotating shaft portion. The third engagement portion and the second engagement portion are arranged at intervals along the axial direction of the second rotating shaft portion. The third engagement portion is engaged with the output component.

[0016] In some embodiments, the output component includes: A third rotating shaft is disposed inside the housing and rotatably connected to the housing. The third rotating shaft extends along the first direction and has an assembly groove. A fourth meshing part is arranged around the third rotating shaft part and connected to the third rotating shaft part. The fourth meshing part is meshed with the third meshing part. The number of locking teeth on the fourth meshing part is different from the number of locking teeth on the third meshing part. The output shaft is partially embedded in the mounting groove and is connected to the third rotating shaft so that the third rotating shaft drives the output shaft to rotate.

[0017] In some embodiments, the output component further includes: A sleeve portion is provided around the output shaft portion, one end of the sleeve portion is inserted into the mounting hole of the housing, and the sleeve portion has a sealing groove; A sealing part is disposed within the sealing groove and surrounds the sleeve part, and the sealing part is interference-fitted with the inner wall of the mounting hole.

[0018] In some embodiments, the rotational speed ratio between the first meshing portion and the fourth meshing portion is A, satisfying: 1 / 30≤A≤1 / 10.

[0019] In some embodiments, the driver component further includes: A fixing member is inserted through the knob into the connecting hole and connected to the first rotating shaft, so that the knob is connected to the first rotating shaft through the fixing member.

[0020] In some embodiments, the end of the bushing portion away from the flange portion has a plurality of positioning grooves, and the plurality of positioning grooves are arranged at intervals along the circumferential direction of the bushing portion. The knob has a mounting groove, and one end of the bushing opposite to the flange is embedded in the mounting groove. Multiple positioning blocks are arranged circumferentially inside the mounting groove, and each positioning block is embedded in a positioning groove so that the knob drives the connector to rotate.

[0021] In some embodiments, the knob is disposed on the side of the housing opposite to the output component, and the output component extends along the first direction.

[0022] In some embodiments, the knob is disposed on one side of the housing in a second direction, which intersects the first direction.

[0023] In some embodiments, the suture handle structure further includes: An attachment assembly is detachably connected to the housing and is used to detachably connect the housing to the endoscope.

[0024] This application also provides an endoscope kit, including: Endoscope; The suture handle structure as described in any one of the above descriptions is detachably connected to the endoscope.

[0025] The suture handle structure of this application embodiment includes a housing, a drive assembly, a transmission assembly, and an output assembly. At least a portion of the drive assembly is disposed within the housing, and the drive assembly includes a knob disposed outside the housing. The transmission assembly is disposed within the housing and connected to the drive assembly. The output assembly is disposed on one side of the housing in a first direction and connected to the transmission assembly. The knob drives the transmission assembly, causing the transmission assembly to rotate at least a portion of the output assembly. By rotating the knob, the drive assembly moves as a whole, transmitting the motion to the transmission assembly, which in turn causes at least a portion of the output assembly to rotate, enabling the output assembly to drive the suture structure of the suture to operate. This structure places the knob, the power input component, outside the housing, facilitating direct force application by the operator. Power transmission is completed simply by rotating the knob, enabling the suture structure connected to the output assembly to begin operation. This makes operation more direct and effortless, effectively improving the ease of operation and efficiency of the suture handle. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0028] Figure 1 This is a perspective view of the suture handle structure provided in an exemplary embodiment of this disclosure; Figure 2 This is a cross-sectional view of the internal structure of the housing provided in an exemplary embodiment of this disclosure, wherein the knob is not shown in the figure; Figure 3 This is a schematic diagram of the connection between the drive assembly, transmission assembly and output assembly provided in an exemplary embodiment of this disclosure, wherein the knob is not shown in the figure; Figure 4 This is a schematic diagram of the connection between the first transmission member, the connecting member, and the torque adjustment assembly provided in an exemplary embodiment of this disclosure; Figure 5 This is a schematic diagram of the connection between the bushing portion and the first rotating shaft portion provided in an exemplary embodiment of this disclosure; Figure 6 This is an exploded structural diagram of the first transmission member, connecting member, and torque adjustment assembly provided in an exemplary embodiment of this disclosure; Figure 7 This is a schematic diagram of the structure of the rotating part, flange part, and bushing part provided in an exemplary embodiment of this disclosure; Figure 8 This is a schematic diagram of the structure of the knob provided in an exemplary embodiment of this disclosure; Figure 9 This is a schematic diagram of the structure of the first bearing portion provided in an exemplary embodiment of this disclosure; Figure 10 This is a cross-sectional structural diagram of the connection between the second transmission member and the output component provided in an exemplary embodiment of this disclosure; Figure 11 This is a schematic diagram of the structure of the second transmission component provided in an exemplary embodiment of this disclosure; Figure 12 This is a top view of the suture handle structure provided in an exemplary embodiment of this disclosure; Figure 13 This is provided in the exemplary embodiments of this disclosure. Figure 12 A cross-sectional view along the CC direction; Figure 14 This is provided in the exemplary embodiments of this disclosure. Figure 13 Enlarged view of a portion of area A in the middle; Figure 15 This is a schematic diagram of the structure of the output component provided in an exemplary embodiment of this disclosure; Figure 16 This is a schematic diagram of the structure of the first handle provided in an exemplary embodiment of this disclosure; Figure 17 This is a schematic diagram of the structure of the second handle provided in an exemplary embodiment of this disclosure; Figure 18 This is a schematic diagram of the structure of the housing connected to the endoscope via an attachment component in an exemplary embodiment of this disclosure.

[0029] Explanation of reference numerals in the attached figures: 1-First handle; 2-Second handle; 10-Housing; 11-Receiving cavity; 12-Gap; 13-Body part; 131-Opening; 14-Cover part; 15-First limiting part; 16-Second limiting part; 17-Third limiting part; 18-Fourth limiting part; 19-Fifth limiting part; 200-Sixth limiting part; 210-Mounting hole; 20-Transmission assembly; 21-First transmission component; 211-Rotating part; 212-Groove; 213-First meshing part; 214-Rolling part; 215-First bearing part; 216-Clamping tooth; 217-Shaft ring; 218-Seat ring; 219-Steel ball assembly; 22-Second transmission component; 221-Second rotating shaft part; 222-Second meshing part; 223- 30 - Third engagement part; 31 - Output assembly; 311 - Third rotating shaft part; 32 - Assembly groove; 33 - Fourth engagement part; 34 - Output shaft part; 35 - Sleeve part; 36 - Sealing groove; 37 - Sealing part; 40 - Drive assembly; 41 - Connector; 411 - Flange part; 412 - Through hole; 413 - Boss; 414 - Positioning groove; 415 - Bushing part; 416 - Connecting hole; 417 - First rotating shaft part; 42 - Knob part; 421 - Mounting groove; 422 - Positioning block; 43 - Fixing part; 50 - Torque adjustment assembly; 51 - Adjustment part; 511 - Push tooth; 52 - Elastic part; 53 - Second bearing part; 60 - Endoscope; 70 - Attachment assembly; X - First direction; Y - Second direction. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0031] An endoscope is a medical device that enters the body through natural cavities or minimally invasive incisions for visual examination and treatment. It is widely used in gastroenterology, respiratory medicine, and urology. Common types include gastroscopes, colonoscopes, and duodenoscopes. In some surgeries, medical staff need to use endoscopes in conjunction with suture handles. However, suture handles are generally controlled by a hydraulic system, typically requiring complex components such as hydraulic cylinders, pistons, and hydraulic lines. This not only results in a complex structure and high manufacturing cost, but also requires significant pressure or complex control procedures to operate. Operators cannot accurately control the suturing process with simple movements, making operation inconvenient and affecting the efficiency and comfort of the surgical procedure.

[0032] Please see Figure 1 and Figure 2This application provides a suture handle structure, including a housing 10, a drive assembly 40, a transmission assembly 20, and an output assembly 30. At least a portion of the drive assembly 40 is disposed within the housing 10, and the drive assembly 40 includes a knob 42 disposed outside the housing 10. The transmission assembly 20 is disposed within the housing 10 and connected to the drive assembly 40. The output assembly 30 is disposed on one side of the housing 10 in a first direction X and connected to the transmission assembly 20. The knob 42 drives the transmission assembly 20, causing the transmission assembly 20 to rotate at least a portion of the output assembly 30.

[0033] The knob 42 on the drive assembly 40, located outside the housing 10, allows the operator to easily grip and rotate it. The transmission assembly 20 is entirely installed inside the housing 10 and forms a transmission connection with the drive assembly 40, receiving power from it. The output assembly 30 is located on one side of the housing 10 along the first direction X and is connected to the transmission assembly 20. When the operator rotates the knob 42, it drives the drive assembly 40 to move as a whole. The drive assembly 40 then transmits the motion to the transmission assembly 20, which in turn drives at least a portion of the output assembly 30 to rotate, enabling the output assembly 30 to operate the suture structure of the sewing machine. This structure places the knob 42, the power input component, outside the housing 10, facilitating direct force application by the operator, while integrating the transmission assembly 20 and part of the output assembly 30 inside the housing 10, resulting in a compact and reliable handle. Compared to current suture handles that require hydraulic cylinders, pistons, and complex piping for actuation, this application achieves power transmission simply by rotating the knob 42. This makes operation more direct and effortless, eliminating the need for complex hydraulic control processes and effectively improving the ease of operation and efficiency of the suture handle. Simultaneously, the housing 10 provides excellent support and protection for the internal transmission assembly 20, and the output assembly 30, located on one side of the housing 10 and extending along the first direction X, facilitates docking with actuating components such as the suture structure.

[0034] Please see Figure 2 and Figure 3 In conjunction with the above embodiments, in some embodiments, the drive assembly 40 includes a connector 41, at least a portion of which is disposed within the housing 10 and connected to the transmission assembly 20. The transmission assembly 20 includes a first transmission member 21 and a second transmission member 22. The first transmission member 21 is disposed around the connector 41 and connected to the connector 41, so that the connector 41 drives the first transmission member 21 to rotate. The second transmission member 22 is connected to the output assembly 30 and engages with the first transmission member 21, so that the first transmission member 21 drives the output assembly 30 to rotate via the second transmission member 22. The number of teeth 216 on the first transmission member 21 is different from the number of teeth 216 on the second transmission member 22.

[0035] Since the first transmission member 21 of the transmission assembly 20 surrounds the outer periphery of the connector 41 and is connected to the connector 41, when the operator rotates the knob 42, it will cause the connector 41 to rotate accordingly, thereby driving the first transmission member 21 to rotate together. A part of the second transmission member 22 is connected to the output assembly 30, and the second transmission member 22 and the first transmission member 21 mesh with each other through teeth 216. Since the number of teeth 216 on the first transmission member 21 is different from the number of teeth 216 on the second transmission member 22, they form different speed ratios when meshing, that is, the speeds of the first transmission member 21 and the second transmission member 22 are different. In this way, when the first transmission member 21 rotates, it will drive the second transmission member 22 to rotate at a different speed through meshing, and then the second transmission member 22 will drive the output assembly 30 to rotate. By setting different numbers of locking teeth 216, this application can achieve variable speed transmission within the limited space of the housing 10. The operator can rotate the knob 42 to create a suitable ratio between the rotational speed of the knob 42 and the rotational speed of the output component 30, thus balancing effortless operation and output accuracy, facilitating operator control of the suture structure. Compared with current suture machines that use hydraulic drive or direct rigid transmission, this application uses a transmission component for variable speed, which not only has a simple structure and smooth transmission but also allows for flexible adjustment of the output speed. This makes it easier for the suture handle to control the suture structure during the suturing process, such as facilitating control of the needle insertion speed and force, improving operational comfort and suture quality.

[0036] Please see Figure 2 , Figure 4 and Figure 7 In conjunction with the above embodiments, in some embodiments, the connector 41 includes a bushing portion 415, a flange portion 411, and a plurality of rolling portions 214. The bushing portion 415 is at least partially disposed within the housing 10 and rotatably connected to the housing 10, and is connected to the knob portion 42. The flange portion 411 is connected to the end of the bushing portion 415 opposite to the knob portion 42, and the flange portion 411 protrudes radially from the bushing portion 415. The flange portion 411 is provided with a plurality of through holes 412, which are arranged at intervals along the circumference of the flange portion 411. Each rolling portion 214 is disposed within one through hole 412.

[0037] At least a portion of the first transmission member 21 is disposed on the side of the flange portion 411 opposite to the knob portion 42 and abuts against the flange portion 411. A plurality of grooves 212 are provided on the side of the first transmission member 21 facing the flange portion 411, and a portion of each rolling part 214 is embedded in a groove 212. The rolling part 214 is configured such that when the resistance received by the first transmission member 21 is greater than a preset resistance, the rolling part 214 can disengage from the groove 212.

[0038] When the operator rotates the knob 42, the bushing 415 rotates accordingly, thereby causing the flange 411 to rotate. The flange 411, which protrudes radially outward, has multiple through holes 412 spaced circumferentially along its length. Each through hole 412 contains a rolling part 214, which can be a rigid spherical structure, such as a steel ball. A portion of the first transmission member 21 is located on the side of the flange 411 facing away from the knob 42 and abuts against the surface of the flange 411, creating frictional resistance between this portion and the flange 411 to prevent relative rotation. Simultaneously, the first transmission member 21 has multiple grooves 212 on the side facing the flange 411, and a portion of each rolling part 214 is embedded in a corresponding groove 212. Most of each rolling part 214 is located within the through hole 412, and a small portion is located within the corresponding groove 212. This increases the resistance to rotation of the flange part 411 relative to the first transmission member 21 due to the blocking effect of the rolling part 214. When the sewing machine handle is working normally, the flange part 411 drives the first transmission member 21 to rotate synchronously through the frictional resistance F1 between it and the first transmission member 21, and the resistance F2 generated by the blocking effect of the rolling part 214. The sum of F1 and F2 is the preset resistance, which is the power of the flange part 411 to drive the first transmission member 21. When the suture structure connected to the output component 30 jams or reaches its suture limit, it creates a certain resistance F3 on the first transmission member 21. When F3 exceeds the sum of F1 and F2, the flange 411 drives the rolling part 214 to overcome the resistance of the first transmission member 21, causing the rolling part 214 to slide out of the groove 212. The transmission between the flange 411 and the first transmission member 21 is cut off. The resistance experienced by the first transmission member 21 is greater than the power provided by the flange 411, and it no longer rotates with the flange 411. This structure provides mechanical overload protection for the suture handle. Once the suture structure encounters excessive resistance, the rolling part 214 automatically disengages from the corresponding groove 212, preventing damage to the internal gear structure or drive structure due to forced rotation, thus providing a certain degree of protection.

[0039] In this design, the number of grooves 212 on the first transmission member 21 can be the same as or greater than the number of through holes 412, and the grooves 212 are arranged in a ring. When a rolling part 214 is pushed out of a groove 212 by the flange 411, the rolling part 214 moves in a ring, thus entering another groove 212 during its movement. When the rolling part 214 enters another groove 212, a distinct "clicking" sound is produced due to the collision, indicating that the flange 411 and the first transmission member 21 have rotated relative to each other, thereby reminding the operator to stop applying force, effectively protecting the structure and improving surgical safety. Compared with existing hydraulic drive or rigid transmission structures, this application achieves torque limiting and overload warning in a simple mechanical way through the disengageable engagement of the rolling part 214 and the groove 212, without the need for complex electronic sensors or hydraulic valves, resulting in a compact structure, low cost, and high reliability.

[0040] Please see Figure 4 and Figure 5 In conjunction with the above embodiments, in some embodiments, the bushing portion 415 has a connecting hole 416 extending axially along the bushing portion 415. The connecting member 41 also includes a first rotating shaft portion 417. At least a portion of the first rotating shaft portion 417 is disposed within the housing 10, one end of the first rotating shaft portion 417 is rotatably connected to the housing 10, the other end of the first rotating shaft portion 417 is embedded in the connecting hole 416, a flange portion 411 is disposed radially protruding from the first rotating shaft portion 417, and at least a portion of the first transmission member 21 is disposed around the first rotating shaft portion 417 and rotatably connected to the first rotating shaft portion 417.

[0041] A portion of the first transmission member 21 surrounds the outside of the first rotating shaft portion 417 and forms a rotatable connection with it, meaning the first rotating shaft portion 417 can rotate freely relative to the first transmission member 21. When the flange portion 411 rotates relative to the first transmission member 21, the first rotating shaft portion 417, which rotates synchronously with the flange portion 411, also rotates relative to the first transmission member 21. Through this structure, the first rotating shaft portion 417 and the bushing portion 415 achieve a coaxial connection through the engagement of the connecting hole 416, ensuring centering accuracy and stability during rotation. Simultaneously, one end of the first rotating shaft portion 417 is supported by the housing 10 and rotatably connected to it, while the other end is connected to the bushing portion 415, forming a stable two-end support structure that reduces swaying during rotation. In addition, the first transmission member 21 surrounds the first rotating shaft 417 and is rotatably connected to it, so that the first transmission member 21 can be driven by the flange 411 through the rolling part 214, and can also rotate relative to the first rotating shaft 417 when overloaded, which is beneficial to the realization of the torque overload protection function.

[0042] like Figure 2As shown, the connector 41 is rotatably connected to the housing 10 via a first limiting part 15 and a second limiting part 16. Both the first limiting part 15 and the second limiting part 16 are bearing structures, surrounding the connector 41. Specifically, the first rotating shaft part 417 in the connector 41 is rotatably connected to the housing 10 via the first limiting part 15, and the bushing part 415 in the connector 41 is rotatably connected to the housing 10 via the second limiting part 16, thereby allowing the connector 41 as a whole to rotate relative to the housing 10. The first limiting part 15 and the second limiting part 16 are respectively provided on the corresponding stepped surfaces of the housing 10, and the two corresponding stepped surfaces face opposite directions, serving to support and block the corresponding limiting parts, thereby preventing the connector 41 from moving axially and ensuring the stability of the connector 41 during use.

[0043] Please see Figure 3 , Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the first transmission member 21 includes a rotating portion 211 and a first engaging portion 213. The rotating portion 211 is disposed on the side of the flange portion 411 opposite to the knob portion 42 and abuts against the flange portion 411. The rotating portion 211 is disposed around the first rotating shaft portion 417 and is rotatable relative to the first rotating shaft portion 417. The aforementioned plurality of grooves 212 are disposed on the side of the rotating portion 211 facing the flange portion 411. The first engaging portion 213 is disposed around the connector 41 and connected to the rotating portion 211, for example, integrally formed or connected by fasteners. The first engaging portion 213 is engaged with the second transmission member 22. The number of teeth 216 on the first engaging portion 213 is different from the number of teeth 216 on the second transmission member 22.

[0044] With the above structure, when the flange 411 drives the rotating part 211 to rotate via the rolling part 214, the rotating part 211 will drive the first meshing part 213 to rotate together. Since the locking teeth 216 on the first transmission member 21 are set on the first meshing part 213, when the first meshing part 213 and the second transmission member 22 are engaged, the number of locking teeth 216 on the two is different, so that the two form different speed ratios when meshing and transmitting, thereby realizing speed change output. At the same time, the rotating part 211 can rotate freely relative to the first rotating shaft part 417. This means that under overload conditions, after the rolling part 214 disengages from the groove 212, the rotating part 211 can stop rotating relative to the first rotating shaft part 417, while the first rotating shaft part 417 can still rotate with the knob part 42, thereby effectively cutting off power transmission and protecting the internal gears and other structures from damage. This application achieves torque transmission by connecting the rotating part 211 and the first meshing part 213 with the flange part 411, and also realizes the speed change function by meshing with different numbers of teeth 216. At the same time, the relative rotation of the rotating part 211 and the first rotating shaft part 417 facilitates overload protection of the structure. The overall structure is compact and has a high degree of functional integration, which is conducive to improving the operational flexibility and transmission reliability of the sewing machine handle.

[0045] Please see Figure 4 In conjunction with the above embodiments, in some embodiments, the first rotating shaft portion 417 is provided with a boss 413. The boss 413 is located on the side of the rotating portion 211 opposite to the flange portion 411 and is axially spaced from the rotating portion 211. The first transmission member 21 also includes a first bearing portion 215. The first bearing portion 215 is arranged around the first rotating shaft portion 417, one side of the first bearing portion 215 abuts against the side of the rotating portion 211 opposite to the flange portion 411, and the other side of the first bearing portion 215 abuts against the boss 413. The first bearing portion 215 is a thrust ball bearing, which is a type of rolling bearing specifically designed to withstand axial loads, such as... Figure 9 As shown, its main structure comprises three parts: a shaft ring 217 tightly fitted to the rotating shaft, a seat ring 218 fixed on the bearing housing, and a steel ball assembly 219 disposed between the shaft ring 217 and the seat ring 218. During operation, the shaft ring 217 rotates with the rotating shaft, and the axial force is transmitted to the steel balls on the steel ball assembly 219 through the shaft ring 217. The steel balls roll on the raceway formed between the shaft ring 217 and the seat ring 218, thereby transmitting the rotational motion and axial force from the shaft ring 217 to the seat ring 218 through rolling friction, while simultaneously allowing relative rotation between the shaft ring 217 and the seat ring 218. Due to the rolling action of the steel balls, the thrust ball bearing can withstand large unidirectional or bidirectional axial thrust within a small space, and has low frictional resistance and flexible rotation. The thrust ball bearing provides support for the rotating part 211 while also facilitating its rotation without interfering with it.

[0046] The boss 413 and the first bearing portion 215 together provide axial support and positioning for the rotating part 211. The first bearing portion 215 fills the gap between the boss 413 and the rotating part 211, thus limiting the rotating part 211 axially and preventing it from moving freely along the axial direction of the first rotating shaft portion 417. Simultaneously, since the first bearing portion 215 is in abutting relationship with both the rotating part 211 and the boss 413, the rotating part 211 can drive a portion of the structure in the first bearing portion 215 to rotate when it rotates, thereby reducing the rotational resistance of the rotating part 211 and ensuring that the rotating part 211 can rotate smoothly relative to the first rotating shaft portion 417. This application, by adding the first bearing portion 215 as an intermediate force transmission element, achieves both axial support and limitation, significantly reduces rotational friction, improves transmission efficiency and the service life of parts, and makes the relative rotation between the rotating part 211 and the first rotating shaft portion 417 more sensitive and reliable under overload conditions.

[0047] Please see Figure 2 and Figure 4 In conjunction with the above embodiments, in some embodiments, a gap 12 is formed between the first engaging portion 213 and the connecting member 41, and the gap 12 extends circumferentially along the connecting member 41. The suture handle structure also includes a torque adjustment component 50, which is disposed within the housing 10 and located on the side of the flange portion 411 opposite to the rotating portion 211. The torque adjustment component 50 is used to apply a preset compressive force to the flange portion 411.

[0048] The first engaging portion 213 and the connector 41 are not completely fitted together, but rather together form an annular gap 12 extending circumferentially along the connector 41. This gap 12 provides space for the subsequent installation of the torque adjustment assembly 50. The torque adjustment assembly 50 is disposed inside the housing 10 and is located on the side of the flange portion 411 opposite to the rotating portion 211. The torque adjustment assembly 50 abuts against the flange portion 411 to apply a preset pressing force toward the rotating portion 211. This preset pressing force is transmitted through the flange portion 411 to the rolling portion 214 and the rotating portion 211, increasing the contact pressure between the flange portion 411 and the rotating portion 211, increasing the friction between them, and also increasing the resistance threshold for the rolling portion 214 to disengage from the groove 212. By setting the torque adjustment component 50, the operator can adjust the preset squeezing force according to actual surgical needs, such as different tissue hardness and different suture needle specifications. This changes the power of the flange 411 driving the rotating part 211, thereby changing the overload protection trigger threshold. When the torque adjustment component 50 exerts a large squeezing force on the flange 411, the first transmission member 21 requires greater resistance to make the flange 411 and the rotating part 211 rotate relative to each other, and the rolling part 214 disengages from the corresponding groove 212, which is suitable for scenarios requiring greater suturing force. When the torque adjustment component 50 exerts a small squeezing force on the flange 411, the first transmission member 21 only requires less resistance to make the flange 411 and the rotating part 211 rotate relative to each other, triggering the protection, which is suitable for delicate operations or fragile tissues. This application achieves flexible adjustment of the overload protection threshold by applying an adjustable squeezing force to the flange 411 through the torque adjustment component 50, allowing the same suture handle to adapt to different surgical environments and operational requirements, improving the versatility and safety of the structure. Meanwhile, the gap 12 allows the torque adjustment component 50 to be compactly arranged inside the housing 10 without increasing the overall size of the handle.

[0049] Please see Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the torque adjustment assembly 50 includes an adjustment portion 51 and an elastic portion 52. A portion of the adjustment portion 51 is embedded in the gap 12 between the first engaging portion 213 and the connecting member 41, and the adjustment portion 51 and the first engaging portion 213 are connected to each other by threads. The elastic portion 52 is also disposed in the gap 12. One end of the elastic portion 52 abuts against the adjustment portion 51, and the other end is used to apply a preset compressive force to the flange portion 411 in the direction of the rotating portion 211, so that a preset resistance is generated between the flange portion 411 and the rotating portion 211. The rolling portion 214 is kept embedded in the groove 212 under the action of the preset compressive force of the elastic portion 52, and when the resistance received by the first transmission member 21 is greater than the preset resistance, the rolling portion 214 can disengage from the groove 212.

[0050] When the first transmission member 21 encounters tissue resistance or reaches its limit position in the suture structure, and the resistance experienced by the first transmission member 21 exceeds the aforementioned preset resistance (i.e., exceeds the power of the flange 411 driving the first transmission member 21), the flange 411 will rotate relative to the first transmission member 21, and the rolling part 214 will overcome the squeezing force of the elastic part 52 and slide out of the corresponding groove 212. The transmission between the flange 411 and the rotating part 211 is cut off, thereby achieving overload protection. By rotating the adjusting part 51, its threaded engagement position with the first engaging part 213 can be changed, thereby compressing or releasing the elastic part 52, precisely adjusting the squeezing force of the elastic part 52 on the flange 411, thereby changing the trigger threshold of overload protection, i.e., changing the preset resistance, or changing the power of the flange 411 driving the first transmission member 21. The elastic part 52 can be a spring, sheet metal, or other elastic structure.

[0051] This application achieves continuous adjustment of the overload protection threshold through the elastic part 52 and the adjusting part 51 threadedly connected to the first engaging part 213. The operator can flexibly set the protection torque according to different surgical needs. At the same time, a part of the adjusting part 51 and the elastic part 52 are set in the gap 12, which makes the structure compact and does not increase the external size of the handle. Moreover, the threaded adjustment method is simple and reliable, which is convenient for production and use. In addition, when the rolling part 214 disengages from the groove 212 and enters the next corresponding groove 212, the energy stored in the elastic part 52 is released instantaneously, producing a clear "clicking" sound, which serves as an auditory prompt to remind the operator to stop applying force, further improving surgical safety.

[0052] Please see Figure 4 and Figure 6 In conjunction with the above embodiments, in some embodiments, the torque adjustment assembly 50 further includes a second bearing portion 53. The second bearing portion 53 is disposed around the connector 41 and is located on the side of the flange portion 411 opposite to the rotating portion 211, and the second bearing portion 53 abuts against the flange portion 411. The end of the elastic portion 52 opposite to the adjusting portion 51 abuts against the second bearing portion 53, and the elastic portion 52 presses against the flange portion 411 through the second bearing portion 53.

[0053] A second bearing portion 53 may be provided between the flange portion 411 and the elastic portion 52, so that the end of the elastic portion 52 away from the adjusting portion 51 no longer directly contacts the flange portion 411, but instead abuts against the second bearing portion 53. When the elastic portion 52 is compressed by the adjusting portion 51, its stored elastic force is transmitted to the flange portion 411 through the second bearing portion 53, that is, the elastic portion 52 applies a preset compressive force to the flange portion 411 through the second bearing portion 53. The second bearing portion 53 is a thrust ball bearing.

[0054] Since the second bearing portion 53 is a thrust ball bearing with the same structure as the first bearing portion 215, it also contains a steel ball assembly 219, allowing the central ring 217 and the seat ring 218 of the thrust ball bearing to rotate relative to each other. Therefore, when the flange portion 411 rotates under drive, the flange portion 411 will drive the second bearing portion 53 to rotate with the ring 217 it contacts, while the seat ring 218 that the second bearing portion 53 contacts with the elastic portion 52 remains stationary, preventing the elastic portion 52 from rotating with the flange portion 411. By adding a thrust ball bearing as the second bearing portion 53 between the elastic portion 52 and the flange portion 411, the pressure applied by the elastic portion 52 can be evenly distributed on the back side of the flange portion 411, avoiding localized stress concentration that may occur if the elastic portion 52 directly contacts the flange portion 411. On the other hand, it effectively isolates the rotation of the flange 411, preventing the elastic part 52 from twisting, wearing or fatigued due to rotation, and ensuring that the elastic part 52 always only bears axial compressive force, thereby ensuring the long-term stability and adjustment accuracy of the preset pressure.

[0055] The orthographic projection of the rolling part 214 onto a plane perpendicular to the axial direction of the bushing part 415 is at least partially located on the second bearing part 53. That is, when viewed along the axial direction of the bushing part 415, the positions of the rolling part 214 and the second bearing part 53 overlap. Since the rolling part 214 is located within the through hole 412 of the flange part 411, and the second bearing part 53 is positioned on the side of the flange part 411 opposite to the rotating part 211 and abuts against the flange part 411, this overlapping projection ensures that when the resistance experienced by the first transmission member 21 exceeds a preset resistance and the rolling part 214 disengages from the groove 212, the rolling part 214 will abut against the end face of the second bearing part 53 axially, rather than falling into other gaps or becoming stuck inside the mechanism. The second bearing part 53 thus acts as a limit, ensuring that the rolling part 214 remains within a controllable range after disengaging from the corresponding groove 212, preventing loss or damage to other parts. When the rolling part 214 moves circumferentially to the position of the next groove 212 along with the flange part 411, the rolling part 214 can be re-embedded in the corresponding groove 212 under the reset action of the elastic part 52.

[0056] Please see Figure 2 and Figure 4 In conjunction with the above embodiments, in some embodiments, the adjustment part 51 includes a plurality of pushing teeth 511, which are arranged at intervals along the circumference of the adjustment part 51 and are disposed outside the gap 12. The housing 10 includes a body part 13 and a cover part 14. The body part 13 has a receiving cavity 11 and an opening 131 communicating with the receiving cavity 11. The torque adjustment component 50 is disposed in the receiving cavity 11, and the pushing teeth 511 are disposed close to the opening 131. The cover part 14 covers the opening 131 and is detachably connected to the body part 13.

[0057] The cover portion 14 seals the opening 131, preventing external dust or foreign objects from entering the receiving cavity 11 through the opening 131, while maintaining the integrity of the handle's appearance. When it is necessary to adjust the compression of the elastic part 52, i.e., change the overload protection threshold, the operator can first remove the cover portion 14 from the body portion 13, exposing the opening 131; then, insert a screwdriver, lever, or other suitable tool into the opening 131, so that the head of the tool engages with the push teeth 511 on the adjusting part 51. By turning or rotating the tool, the adjusting part 51 is driven to rotate around its axis. Since the adjusting part 51 is threadedly connected to the first engaging part 213, the rotation of the adjusting part 51 changes its axial position, thereby compressing or releasing the elastic part 52, achieving precise adjustment of the preset compression force. After adjustment, the operator removes the tool and reinstalls the cover portion 14 onto the body portion 13 to seal the opening 131. With the above structure, the torque adjustment component 50 is completely enclosed inside the housing 10, avoiding accidental contact or contamination during daily use. At the same time, the detachable cover 14 provides the operator with a convenient adjustment channel, allowing adjustment of the overload threshold without disassembling the entire handle, thus improving the convenience and safety of adjustment.

[0058] Please see Figure 10 and Figure 11 In conjunction with the above embodiments, in some embodiments, the second transmission member 22 includes a second rotating shaft portion 221, a second meshing portion 222, and a third meshing portion 223. The second rotating shaft portion 221 is disposed inside the housing 10 and is rotatably connected to the housing 10, meaning that the second rotating shaft portion 221 can rotate freely around its own axis. The second meshing portion 222 is disposed around the outer periphery of the second rotating shaft portion 221 and is connected to the second rotating shaft portion 221. The second meshing portion 222 is engaged with the first meshing portion 213 through teeth 216. The number of teeth 216 on the second meshing portion 222 is different from the number of teeth 216 on the first meshing portion 213, so the two form different speed ratios when meshing, achieving deceleration or acceleration. The third engagement portion 223 is disposed around the outer periphery of the second rotating shaft portion 221 and is connected to the second rotating shaft portion 221. The third engagement portion 223 and the second engagement portion 222 are arranged at intervals in the axial direction of the second rotating shaft portion 221. The third engagement portion 223 is engaged with the output assembly 30 for transmitting power to the output assembly 30.

[0059] When the first engaging part 213 rotates, it drives the second engaging part 222 to rotate through the engagement of the locking teeth 216. The second engaging part 222 drives the second rotating shaft part 221 to rotate together. The second rotating shaft part 221 then drives the third engaging part 223 to rotate synchronously. Finally, the third engaging part 223 drives the output component 30 to rotate. Since the number of locking teeth 216 in the second engaging part 222 and the first engaging part 213 is different, the number of locking teeth 216 in the third engaging part 223 and the output component 30 can also be set as needed. Therefore, this application realizes a two-stage speed change transmission by arranging the two engaging parts on the same rotating shaft. It can obtain a larger reduction ratio or a more precise output speed within the limited space of the housing 10. After the rotation of the knob 42 goes through two speed changes, the output component 30 obtains a speed and torque suitable for the sewing operation. This application transmits power from the first transmission member 21 to the output component 30 through two meshing parts spaced apart on the second rotating shaft 221. At the same time, it achieves flexible speed adjustment by using different numbers of teeth. The structure is compact and the transmission is smooth, which helps to improve the output accuracy and operating comfort of the sewing machine handle.

[0060] like Figure 2 As shown, the second rotating shaft 221 is rotatably connected to the housing 10 via the third limiting part 17 and the fourth limiting part 18. Both the third limiting part 17 and the fourth limiting part 18 are bearing structures, surrounding the second rotating shaft 221, thereby allowing the second rotating shaft 221 to rotate relative to the housing 10. The first limiting part 15 and the second limiting part 16 are respectively provided on the corresponding stepped surface of the housing 10, or on the stepped surface of the inwardly extending portion of the housing 10. The two corresponding stepped surfaces face opposite directions and are used to support and block the corresponding limiting parts, thereby preventing the second rotating shaft 221 from moving axially and ensuring the stability of the second rotating shaft 221 during use.

[0061] Please see Figure 12 , Figure 13 , Figure 14 and Figure 15In conjunction with the above embodiments, in some embodiments, the output component 30 includes a third rotating shaft portion 31, a fourth engaging portion 32, and an output shaft portion 33. The third rotating shaft portion 31 is disposed within the housing 10 and forms a rotatable connection with the housing 10. The third rotating shaft portion 31 extends along a first direction X and has a mounting groove 311. The fourth engaging portion 32 is disposed around the third rotating shaft portion 31 and is fixedly connected to the third rotating shaft portion 31. The fourth engaging portion 32 and the third engaging portion 223 are engaged and connected by teeth 216. The number of teeth 216 on the fourth engaging portion 32 is different from the number of teeth 216 on the third engaging portion 223, so that they form a certain speed ratio during meshing transmission, thereby achieving speed change. A portion of the output shaft portion 33 is embedded in the mounting groove 311 and is connected to the third rotating shaft portion 31, for example, through a key connection, interference fit, or polygonal cross-section fit, so that the third rotating shaft portion 31 drives the output shaft portion 33 to rotate.

[0062] When the third engagement part 223 on the second transmission member 22 rotates, it drives the fourth engagement part 32 to rotate through the engagement of the locking teeth 216. The fourth engagement part 32 drives the third rotating shaft part 31 to rotate together. The third rotating shaft part 31 then transmits power to the output shaft part 33 through the engagement of the mounting groove 311 and the output shaft part 33. Finally, the output shaft part 33 drives the suture needle or other actuators to perform the suturing action. Since the fourth engagement part 32 and the third engagement part 223 have different numbers of locking teeth 216, speed regulation is achieved again. This allows the power input from the knob part 42 to obtain the corresponding speed and torque of the output shaft part 33 after passing through multiple speed changes between the first transmission member 21 and the second transmission member 22, and between the second transmission member 22 and the output assembly 30. This application ensures the stability of coaxial transmission and facilitates the disassembly and replacement of the output shaft part 33 by engaging the mounting groove 311 on the third rotating shaft part 31 with the output shaft part 33. Meanwhile, the engagement settings with different numbers of 216 teeth make the output speed more flexible and adjustable, which can adapt to the speed and torque requirements of different sewing scenarios, and improve the applicability and operating accuracy of the handle.

[0063] like Figure 13 and Figure 14 As shown, the third rotating shaft 31 is rotatably connected to the housing 10 via the fifth limiting part 19 and the sixth limiting part 200. Both the fifth limiting part 19 and the sixth limiting part 200 are bearing structures, surrounding the third rotating shaft 31, thus allowing the third rotating shaft 31 to rotate relative to the housing 10. The fifth limiting part 19 and the sixth limiting part 200 are respectively provided on the corresponding stepped surfaces of the housing 10, with the two corresponding stepped surfaces facing opposite directions. They are used to support and block the corresponding limiting parts, thereby preventing the third rotating shaft 31 from moving axially and ensuring the stability of the third rotating shaft 31 during use.

[0064] Please see Figure 13 and Figure 15 In conjunction with the above embodiments, in some embodiments, the output assembly 30 further includes a sleeve portion 34 and a sealing portion 35. The sleeve portion 34 is disposed around the output shaft portion 33, and one end of the sleeve portion 34 is embedded in the mounting hole 210 of the housing 10. The sleeve portion 34 has a sealing groove 341. The sealing portion 35 is disposed in the sealing groove 341 and is disposed around the sleeve portion 34. The sealing portion 35 is interference-fitted with the inner wall of the mounting hole 210, that is, the sealing portion 35 is tightly compressed between the sleeve portion 34 and the inner wall of the mounting hole 210, thereby achieving a seal and connecting the sleeve portion 34 to the housing 10.

[0065] When the suture handle is used in surgery, the portion of the output shaft 33 extending out of the housing 10 comes into contact with tissue fluid, blood, or other liquids. These liquids may seep into the handle through the gap between the output shaft 33 and the housing 10. By providing the sleeve portion 34 and the sealing portion 35, on the one hand, the sleeve portion 34 fills the gap between the output shaft 33 and the housing 10 and guides the rotation of the output shaft 33; on the other hand, the sealing portion 35, with its interference fit, blocks the path of liquid seeping into the housing 10 along the outer wall of the sleeve portion 34, thereby effectively preventing contamination or corrosion of the internal transmission assembly 20 and the torque adjustment assembly 50.

[0066] In some embodiments, the rotational speed ratio between the first engaging portion 213 and the fourth engaging portion 32 is A, satisfying: 1 / 30 ≤ A ≤ 1 / 10. Specifically, the rotational speed of the fourth engaging portion 32 is 10 to 30 times that of the first engaging portion 213. Since the first engaging portion 213 and the knob 42 rotate synchronously through the connecting member 41, and the fourth engaging portion 32 and the output shaft 33 rotate synchronously through the third rotating shaft 31, the rotational speed of the output shaft 33 is 10 to 30 times that of the knob 42. This speed-increasing transmission structure allows the output shaft 33 to rotate rapidly multiple times for every small angle the knob 42 rotates. This is suitable for surgical scenarios requiring rapid continuous suturing or where the output shaft 33 has a light load, significantly improving the efficiency of suturing operations and reducing the number of times the operator needs to repeatedly rotate the knob 42. It is especially suitable for rapid and uniform suturing on delicate tissues.

[0067] Please see Figure 2 and Figure 4In conjunction with the above embodiments, in some embodiments, the drive assembly 40 further includes a fixing member 43. This fixing member 43 is a connection structure such as a screw or pin, which can pass through the outside of the knob 42, extend through the knob 42 into the connecting hole 416 inside the bushing portion 415, and form a fixed connection with the first rotating shaft portion 417 inside the connecting hole 416, for example, a threaded connection or an interference fit. Through this connection method, the knob 42, the bushing portion 415, and the first rotating shaft portion 417 are connected as a whole by the fixing member 43, so that when the operator rotates the knob 42, the knob 42 can directly drive the first rotating shaft portion 417 to rotate synchronously through the fixing member 43, and the bushing portion 415 also rotates accordingly. The connection through the fixing member 43 also facilitates the assembly and disassembly of the knob 42, the bushing portion 415, and the first rotating shaft portion 417, reducing the difficulty of structural maintenance.

[0068] Please see Figure 4 and Figure 8 In conjunction with the above embodiments, in some embodiments, the bushing portion 415 has a plurality of positioning grooves 414 at one end opposite to the flange portion 411, and the plurality of positioning grooves 414 are arranged at intervals along the circumference of the bushing portion 415. The knob component 42 is provided with a mounting groove 421, and one end of the bushing portion 415 opposite to the flange portion 411 is embedded in the mounting groove 421. A plurality of positioning blocks 422 are arranged at intervals along the circumference inside the mounting groove 421, and each positioning block 422 is embedded in a positioning groove 414 so that the knob component 42 can drive the connecting component 41 to rotate.

[0069] Through the engagement of the positioning block 422 and the positioning groove 414, a circumferentially fixed connection is formed between the knob 42 and the bushing 415. When the operator rotates the knob 42, the knob 42 pushes the side wall of the positioning groove 414 through the positioning block 422, thereby causing the bushing 415 to rotate as well, and thus driving the entire connecting piece 41 to rotate. This application achieves reliable torque transmission between the knob 42 and the bushing 415 through the circumferentially spaced positioning block 422 and positioning groove 414 engagement structure. The structure is simple, easy to assemble, and can effectively prevent relative slippage between the two during long-term use, ensuring the consistency and stability of the transmission. At the same time, the uniform distribution of multiple positioning blocks 422 and positioning grooves 414 makes the force more balanced, avoids local stress concentration, and improves the service life of the structure.

[0070] Please see Figure 18 In conjunction with the above embodiments, in some embodiments, the suture handle structure further includes an attachment component 70, which is detachably connected to the housing 10 and is used to detachably connect the housing 10 to the endoscope 60.

[0071] The attachment component 70 is detachably connected to the housing 10 via a snap-fit ​​connection, such as a snap-fit ​​connection, a threaded connection, or a quick-release interface. By providing a separate attachment component 70, the housing 10 can be separated from the attachment component 70, or it can be fixed to the endoscope 60 via the attachment component 70. This allows the suture handle to be installed on the endoscope 60 for collaborative work when needed, and to be easily detached for independent use or replacement with another handle when not needed. Simultaneously, the attachment component 70 is also detachably connected to the endoscope 60 via snap-fit, threaded, or quick-release interfaces, facilitating the separation and assembly of the attachment component 70 from the endoscope 60.

[0072] Please see Figure 16 and Figure 17 In conjunction with the above embodiments, in some embodiments, the suture handle structure includes two forms: a first handle 1 and a second handle 2. Both the first handle 1 and the second handle 2 include a housing 10, a drive assembly 40, a transmission assembly 20, and an output assembly 30. The knob 42 of the first handle 1 is located on the side of the housing 10 opposite to the output assembly 30, i.e., the proximal end of the handle. The knob 42 of the second handle 2 is located on the side of the housing 10 in the second direction Y, i.e., the side of the handle. The second direction Y intersects the first direction X, preferably, the two are perpendicular to each other.

[0073] By providing two handles with different knob positions 42, operators can choose according to the actual surgical scenario and their own operating habits: when nurses are preparing for surgery or assisting during surgery, the first handle 1 with the knob 42 at the proximal end can be used with the endoscope 60 for easy gripping and rotation; when the doctor needs to perform suturing, the first handle 1 can be detached from the attachment component 70, and the second handle 2 with the knob 42 on the side can be connected to the attachment component 70, allowing the operator to rotate the knob 42 from the side with one hand while maintaining the endoscope 60's field of vision, making operation more convenient; at the same time, the second handle 2 is also convenient for nurses to operate. This application, by setting two handles with different knob positions 42, achieves flexible adaptation to different usage scenarios and operator preferences, improving the versatility and ease of operation of the suture handle.

[0074] Please see Figure 16 and Figure 17In conjunction with the above embodiments, in some embodiments, the connecting member 41 of the first handle 1 extends along the first direction X, and the connecting member 41 of the second handle 2 extends along the second direction Y. Since the first direction X and the second direction Y intersect, preferably perpendicularly, this arrangement ensures that the extension direction of the connecting member 41 matches the position of the knob 42 on each handle. The knob 42 of the first handle 1 is located on the side of the housing 10 away from the output assembly 30, i.e., the proximal end, so the connecting member 41 extends along the first direction X to directly connect with the knob 42. The knob 42 of the second handle 2 is located on the side of the housing 10, so the connecting member 41 extends laterally along the second direction Y, also maintaining a coaxial connection with the knob 42 on the side. By aligning the extension direction of the connecting member 41 with the installation direction of the knob 42, this application ensures that the rotation axis of the knob 42 coincides with the axis of the connecting member 41, thereby achieving efficient and smooth power transmission and reducing the risk of needing to add a reversing mechanism or causing a decrease in transmission efficiency due to inconsistent directions.

[0075] In the first handle 1, the connecting member 41 extends along the first direction X, and the first engaging portion 213 is arranged around the connecting member 41, with its axis coinciding with the first direction X. The second engaging portion 222 of the second transmission member 22 is arranged around the second rotating shaft portion 221, which also extends along the first direction X. Therefore, the axes of the first engaging portion 213 and the second engaging portion 222 are parallel to each other, and transmission can be achieved by ordinary cylindrical gear meshing between them without changing the direction. In the second handle 2, the connecting member 41 extends along the second direction Y, and the axis of the first engaging portion 213 coincides with the second direction Y; while the second rotating shaft portion 221 still extends along the first direction X, and the axis of the second engaging portion 222 coincides with the first direction X. Since the first direction X and the second direction Y intersect, preferably perpendicularly, and the axes of the first engaging portion 213 and the second engaging portion 222 are perpendicular to each other, bevel gears or spiral bevel gears are needed for intersecting shaft meshing transmission to achieve a change in the direction of power.

[0076] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A stapler handle structure, characterized by, include: Shell (10); A drive assembly (40) is at least partially disposed within the housing (10), the drive assembly (40) including a knob (42) disposed outside the housing (10); A transmission assembly (20) is disposed within the housing (10) and connected to the drive assembly (40); The output component (30) is disposed on one side of the housing (10) in the first direction (X) and is connected to the transmission component (20); The knob (42) drives the transmission assembly (20) so that the transmission assembly (20) drives at least a portion of the output assembly (30) to rotate.

2. The stapler handle structure according to claim 1, wherein The drive assembly (40) includes a connector (41), at least a portion of which is disposed within the housing (10) and connected to the transmission assembly (20); The transmission assembly (20) includes: A first transmission member (21) is arranged around the connector (41) and connected to the connector (41) so that the connector (41) drives the first transmission member (21) to rotate; The second transmission component (22) is connected to the output component (30) and meshes with the first transmission component (21) so that the first transmission component (21) drives the output component (30) to rotate through the second transmission component (22). The number of teeth (216) on the first transmission component (21) is different from the number of teeth (216) on the second transmission component (22).

3. The stapler handle structure according to claim 2, wherein The connector (41) includes: The bushing (415) is at least partially disposed inside the housing (10) and rotatably connected to the housing (10), and the bushing (415) is connected to the knob (42); A flange (411) is connected to one end of the bushing (415) away from the knob (42). The flange (411) protrudes radially from the bushing (415). A plurality of through holes (412) are provided on the flange (411). The plurality of through holes (412) are arranged at intervals along the circumference of the flange (411). Multiple rolling portions (214), each of the rolling portions (214) being disposed within one of the through holes (412); At least a portion of the first transmission member (21) is disposed on the side of the flange (411) away from the knob (42) and abuts against the flange (411). The first transmission member (21) has a plurality of grooves (212) on the side facing the flange (411), and a portion of each rolling part (214) is embedded in one of the grooves (212). The rolling part (214) is configured such that when the resistance experienced by the first transmission member (21) is greater than a preset resistance, the rolling part (214) can disengage from the groove (212).

4. The stapler handle structure according to claim 3, wherein The bushing portion (415) has a connecting hole (416); the connecting member (41) further includes: The first rotating shaft (417) is at least partially disposed within the housing (10). One end of the first rotating shaft (417) is rotatably connected to the housing (10), and the other end of the first rotating shaft (417) is embedded in the connecting hole (416). The flange (411) protrudes radially from the first rotating shaft (417). At least a portion of the first transmission member (21) is disposed around the first rotating shaft (417) and rotatably connected to the first rotating shaft (417).

5. The stapler handle structure according to Claim 4, wherein The first transmission component (21) includes: A rotating part (211) is disposed on the side of the flange (411) away from the knob (42) and abuts against the flange (411). The rotating part (211) is disposed around the first rotating shaft (417) and is rotatable relative to the first rotating shaft (417). A plurality of grooves (212) are disposed on the side of the rotating part (211) facing the flange (411). The first engagement part (213) is arranged around the connector (41) and connected to the rotating part (211). The first engagement part (213) is engaged with the second transmission member (22). The number of teeth (216) on the first engagement part (213) is different from the number of teeth (216) on the second transmission member (22).

6. The stapler handle structure according to claim 5, wherein The first rotating shaft portion (417) is provided with a boss (413), the boss (413) is located on the side of the rotating portion (211) away from the flange portion (411), and is spaced apart from the rotating portion (211); the first transmission member (21) further includes: A first bearing portion (215) is provided around the first rotating shaft portion (417). One side of the first bearing portion (215) abuts against the side of the rotating portion (211) away from the flange portion (411), and the other side of the first bearing portion (215) abuts against the boss (413).

7. The stapler handle structure according to claim 5, wherein The first engaging part (213) and the connector (41) form a gap (12) that extends circumferentially along the connector (41); The suture handle structure also includes a torque adjustment component (50), which is disposed inside the housing (10) and located on the side of the flange (411) away from the rotating part (211). The torque adjustment component (50) is used to apply a preset pressure to the flange (411).

8. The stapler handle structure according to claim 7, wherein The torque adjustment assembly (50) includes: The adjusting part (51) is partially embedded in the gap (12) and threadedly connected to the first engaging part (213); An elastic part (52) is disposed in the gap (12). One end of the elastic part (52) abuts against the adjustment part (51), and the other end of the elastic part (52) is used to apply a preset extrusion force to the flange part (411) so that the preset resistance is generated between the flange part (411) and the rotating part (211). The rolling part (214) is kept embedded in the groove (212) under the action of the preset extrusion force of the elastic part (52), and when the resistance received by the first transmission member (21) is greater than the preset resistance, the rolling part (214) can disengage from the groove (212).

9. The stapler handle structure according to Claim 8, wherein, The torque adjustment assembly (50) also includes: The second bearing portion (53) is provided around the connector (41) and is located on the side of the flange portion (411) away from the rotating portion (211). The second bearing portion (53) abuts against the flange portion (411). The end of the elastic part (52) away from the adjustment part (51) abuts against the second bearing part (53), and the elastic part (52) squeezes the flange part (411) through the second bearing part (53).

10. The stapler handle structure according to claim 9, wherein, The orthographic projection of the rolling part (214) on a plane perpendicular to the axial direction of the bushing part (415) is at least partially located on the second bearing part (53).

11. The suture handle structure according to claim 8, characterized in that, The adjustment part (51) includes a plurality of push teeth (511), which are arranged at intervals along the circumference of the adjustment part (51) and are disposed outside the gap (12). The housing (10) includes a body part (13) and a cover part (14). The body part (13) has a receiving cavity (11) and an opening (131) communicating with the receiving cavity (11). The torque adjustment component (50) is disposed in the receiving cavity (11), and the push tooth (511) is disposed close to the opening (131). The cover part (14) covers the opening (131) and is detachably connected to the body part (13).

12. The suture handle structure according to claim 5, characterized in that, The second transmission component (22) includes: The second rotating shaft (221) is disposed inside the housing (10) and is rotatably connected to the housing (10); The second meshing part (222) is arranged around the second rotating shaft part (221) and connected to the second rotating shaft part (221). The second meshing part (222) meshes with the first meshing part (213). The number of teeth (216) on the second meshing part (222) is different from the number of teeth (216) on the first meshing part (213). The third engagement part (223) is arranged around the second rotating shaft part (221) and connected to the second rotating shaft part (221). The third engagement part (223) and the second engagement part (222) are arranged at intervals in the axial direction of the second rotating shaft part (221). The third engagement part (223) is engaged with the output component (30).

13. The suture handle structure according to claim 12, characterized in that, The output component (30) includes: The third rotating shaft (31) is disposed inside the housing (10) and is rotatably connected to the housing (10). The third rotating shaft (31) extends along the first direction (X) and has an assembly groove (311). The fourth meshing part (32) is arranged around the third rotating shaft part (31) and connected to the third rotating shaft part (31). The fourth meshing part (32) is meshed with the third meshing part (223). The number of locking teeth (216) on the fourth meshing part (32) is different from the number of locking teeth (216) on the third meshing part (223). The output shaft (33) is partially embedded in the mounting groove (311) and is connected to the third rotating shaft (31) so that the third rotating shaft (31) drives the output shaft (33) to rotate.

14. The suture handle structure according to claim 13, characterized in that, The output component (30) also includes: A sleeve portion (34) is provided around the output shaft portion (33), one end of the sleeve portion (34) is inserted into the mounting hole (210) of the housing (10), and the sleeve portion (34) has a sealing groove (341). A sealing part (35) is disposed in the sealing groove (341) and surrounds the sleeve part (34). The sealing part (35) is interference-fitted with the inner wall of the mounting hole (210).

15. The suture handle structure according to claim 13, characterized in that, The rotational speed ratio between the first meshing part (213) and the fourth meshing part (32) is A, which satisfies: 1 / 30≤A≤1 / 10.

16. The suture handle structure according to claim 4, characterized in that, The drive component (40) also includes: The fixing member (43) passes through the knob (42) into the connecting hole (416) and is connected to the first rotating shaft (417) so that the knob (42) is connected to the first rotating shaft (417) through the fixing member (43).

17. The suture handle structure according to claim 16, characterized in that, The bushing portion (415) has a plurality of positioning grooves (414) at one end away from the flange portion (411), and the plurality of positioning grooves (414) are arranged at intervals along the circumference of the bushing portion (415). The knob (42) has a mounting groove (421). The end of the bushing (415) opposite to the flange (411) is embedded in the mounting groove (421). Multiple positioning blocks (422) are arranged circumferentially inside the mounting groove (421). Each positioning block (422) is embedded in a positioning groove (414) so ​​that the knob (42) drives the connector (41) to rotate.

18. The suture handle structure according to any one of claims 1 to 17, characterized in that, The knob (42) is disposed on the side of the housing (10) away from the output component (30), and the output component (30) extends along the first direction (X).

19. The suture handle structure according to any one of claims 1 to 17, characterized in that, The knob (42) is disposed on one side of the housing (10) in the second direction (Y), which intersects the first direction (X).

20. The suture handle structure according to any one of claims 19, characterized in that, The suture handle structure also includes: An attachment assembly (70) is detachably connected to the housing (10) and is used to detachably connect the housing (10) to the endoscope (60).

21. An endoscope kit, characterized in that, include: Endoscope (60); The suture handle structure as described in any one of claims 1 to 20, wherein the suture handle structure is detachably connected to the endoscope (60).

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