A handle and an execution assembly for surgery

Abstract

The utility model relates to surgical equipment technical field, specifically disclose a handle and be used for operation execution subassembly, and execution subassembly includes the executor that can detachably connect in handle front -end, and the executor passes through elastic connecting piece and links two groups of openable and closable fixer, handle includes the handle part through rotation connection, the transmission part that can convert pinching action into linear motion, and the rotating part that can drive the whole rotation of executor. The present application makes the doctor hold handle and carry out clamping operation in single hand, only thumb can fine adjustment executor angle, and forms the stable tissue traction through elasticity connection, effectively exposes the operation visual field, has the advantages such as convenient operation, gentle traction, strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of surgical equipment technology, and in particular to a handle and an execution component for surgery. Background Technology

[0002] Laparoscopic surgery has become a mainstream surgical procedure due to its advantages of minimal trauma and rapid recovery. However, its core challenge lies in obtaining and maintaining a clear surgical field. Currently, if organs or tissues obscure the target area during surgery, additional instruments or assistants are usually required for traction and exposure. However, relying on manual traction by assistants is not only unstable and prone to fatigue, but also occupies the already limited surgical channel, increasing the complexity of surgical coordination. Therefore, specialized instruments capable of actively clamping and tractioning tissues have become an important direction for development in this field.

[0003] In the prior art, such as the execution component disclosed in Chinese Patent Publication No. CN113974715B, an execution component, an instrument, and a laparoscopic surgical system are provided. The execution component drives two execution heads to open and close relative to each other through the linear motion of the traction wire to achieve the clamping operation of the tissue. Its design avoids the collateral damage to the tissue that the barbed structure may cause.

[0004] However, the functions of these instruments are mainly focused on tissue clamping and release, and their actuator heads have relatively simple movement patterns. In actual surgery, there are often situations where it is necessary to lift an organ (such as the liver) as a whole, rather than just clamping a part of it, to expose the surgical area underneath. In such cases, an actuator head with only opening and closing functions is insufficient for this kind of support task. In addition, the handle operation of these instruments is often not convenient enough. Most designs do not achieve integrated clamping and rotation operations with one hand. When making fine angle adjustments, it is often necessary to use both hands or frequently change the grip position, which not only reduces the efficiency of operation but also affects the smoothness of the surgery.

[0005] Therefore, developing a surgical instrument that can provide stable and reliable organ support while also offering a dexterous and efficient one-handed operation experience is of great clinical significance. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a handle and an execution component for surgery to solve the above problems.

[0007] A handle, comprising: The handle includes a fixed handle and a movable handle rotatably connected to the fixed handle. The transmission unit includes an inner push-pull rod, an outer operating sleeve sleeved on the outside of the inner push-pull rod, a slide rail connected to one end of the outer operating sleeve, and an operating head connected to one end of the inner push-pull rod. The inner push-pull rod is driven by the movable handle to move axially. The slide rail is provided with a slide groove extending axially. The operating head can slide axially along the slide groove and is restricted from circumferential rotation. A rotating part is located at the front end of the fixed handle and is fixedly connected to the outer operating sleeve, used to drive the transmission part to rotate as a whole.

[0008] Specifically, the handle portion further includes a rotating shaft and a reset member. The fixed handle and the movable handle are rotatably connected via the rotating shaft, and the reset member is used to provide a reset force to open the fixed handle and the movable handle.

[0009] Specifically, the movable handle and the inner push-pull rod are connected by a movable part. The movable part includes a fastener at the swing end of the movable handle and a spring ball at the end of the inner push-pull rod. The fastener has a movable hole extending radially along the rotation axis, and the spring ball moves within the movable hole. The fastener also has a clearance groove for the inner push-pull rod to move.

[0010] Specifically, the fixed handle includes a handle body and a first grip connected to the lower end of the handle body, the first grip having a first buckle hole; the movable handle includes a rotating component rotatably disposed within the handle body and a second grip connected to the lower end of the rotating component, the second grip having a second buckle hole, and a V-shaped groove formed on the back of the connection between the rotating component and the second grip.

[0011] Specifically, the transmission unit also includes an outer tube of the slide rail sleeved on the outside of the slide rail component, and a plug detachably disposed at the end of the outer tube of the slide rail.

[0012] Specifically, the rotating part includes: A fixing sleeve, fixed inside the fixing handle, is provided with an axial rotation hole and a locking hole; A rotating shaft is rotatably disposed within the rotating hole, and one end of the shaft is provided with a mounting hole, wherein the outer operating sleeve is fixed in the mounting hole; A locking element is provided in the locking hole and is detachably connected to the rotating shaft. A knob is located at the end of the fixed handle and is fixedly connected to the rotating shaft.

[0013] Specifically, the rotating part further includes an internally threaded component and a screw cap, wherein the internally threaded component is fixed inside the screw cap and is threadedly connected to the knob component.

[0014] Specifically, the operating head is detachably connected to the end of the inner push-pull rod.

[0015] An execution component for surgery, comprising: The handle, wherein the operating head is provided with a connection hole; The actuator is detachably connected to the handle via the connection hole; The actuator includes an elastic connector and two sets of retainers respectively connected to both ends of the elastic connector; The fixation device includes: A telescopic rod includes a rod body and hooks and pull hooks at both ends of the rod body. The hooks are hooked to the connecting holes and can be inserted into the sliding grooves and pulled by the inner push rod. The component clamp has an inner cavity for the rod to move, and has an insertion part and a blocking part. The insertion part is inserted into the slide groove and is limited by the blocking part. At least one clamp is rotatably disposed in the component clamp and opens by being pulled by the hook; A return spring is sleeved on the outside of the component clamp, located between the clamp and the blocking part, and is used to reset and close the clamp.

[0016] Specifically, the chuck is provided with an arc-shaped guide groove, and the hook cooperates with the arc-shaped guide groove to convert the linear motion of the hook into the oscillation of the chuck.

[0017] Specifically, of the two sets of retainers, one set is a double-clamp structure with two clamps; the other set is a single-clamp structure with one clamp.

[0018] Specifically, both sets of retainers have a double-clamp structure.

[0019] Specifically, both sets of retainers are single-clamp structures.

[0020] Specifically, the elastic connector is a nickel-titanium wire.

[0021] Specifically, the elastic connector is a telescopic member, comprising: Inner tube and outer tube sleeved on the outside of the inner tube; The first telescopic end and the second telescopic end are respectively fixed to the ends of the inner tube and the outer tube, and are connected to the corresponding fasteners through silicone tubes; The first and second sliders are arranged in a cross configuration via a slider, and the first and second sliders are respectively connected to the first telescopic end and the second telescopic end. A tension spring is sleeved on the outside of the first and second sliders, with its left and right ends hooked and connected to the left end of the first slider and the right end of the second slider, respectively.

[0022] The beneficial effects of this utility model are: This utility model discloses a handle and an execution component for surgery. The execution component includes an actuator detachably connected to the front end of the handle. The actuator is connected in series with two sets of openable and closable retainers via an elastic connector. The handle includes a handle portion connected by rotation, a transmission portion that converts pinching motion into linear motion, and a rotating portion that drives the actuator to rotate as a whole. This application allows the surgeon to precisely adjust the angle of the actuator using only the thumb while holding the handle with one hand for clamping operations. The elastic connection creates stable tissue traction, effectively exposing the surgical field of view. It has the advantages of convenient operation, gentle traction, and strong adaptability. Attached Figure Description

[0023] Figure 1 This is a perspective view of the handle of Example 1; Figure 2 for Figure 1 Sectional view along line AA; Figure 3 This is an exploded view of the handle of Example 1; Figure 4 Localized explosion in Example 1 Figure 1 ; Figure 5 Localized explosion in Example 1 Figure 2 ; Figure 6 This is a partial cross-sectional view of the execution component in Embodiment 2; Figure 7 This is a perspective view of the actuator in Example 3; Figure 8 This is a cross-sectional view of the actuator in Example 3; Figure 9 for Figure 8 Sectional view along the BB line; Figure 10 This is a perspective view of the component clamp in the double-clamp structure of Example 3; Figure 11 This is a perspective view of the telescopic rod in the double-clamp structure of Example 3; Figure 12 This is a perspective view of the clamps in the double-clamp structure of Example 3; Figure 13 for Figure 8 A cross-sectional view along the CC line; Figure 14 This is a perspective view of the component clamp in the single-clamp structure of Example 3; Figure 15 This is a perspective view of the telescopic rod in the single-clamp structure of Example 3; Figure 16 This is a perspective view of the chuck in the single-chuck structure of Example 3; Figure 17This is a perspective view of the actuator in Example 4; Figure 18 This is a partial cross-sectional view of the actuator in Example 4; Figure 19 for Figure 18 A sectional view along the DD line; Figure 20 for Figure 18 A sectional view along the EE line; Figure 21 This is a perspective view of the slider in Example 4; Figure 22 This is a perspective view of the first slider in Example 4; Figure 23 This is a perspective view of the second slider in Example 4; Figure 24 This is a perspective view of the tension spring in Example 4.

[0024] The attached figures are labeled as follows: handle part 10, fixed handle 11, handle body 111, first grip 112, first buckle hole 1121, movable handle 12, rotating part 121, second grip 122, second buckle hole 1221, V-groove 1222, rotating shaft 13, transmission part 20, inner push-pull rod 21, outer operating sleeve 22, slide part 23, slide groove 231, operating head 24, connecting hole 241, slide outer tube 25, plug 26, rotating part 30, fixed sleeve 31, rotating hole 311, locking hole 312, rotating shaft core 32, mounting hole 321, locking part 33, knob part 34, internal thread Component 35, rotating cap 36, movable part 40, fastener 41, spring ball 42, movable hole 411, clearance groove 412, actuator 50, elastic connector 51, inner tube 511, outer tube 512, first telescopic end 513, second telescopic end 514, silicone tube 515, first slider 516, second slider 517, slider 518, tension spring 519, retainer 52, telescopic rod 521, rod body 5211, hook 5212, pull hook 5213, component clamp 522, insertion part 5221, blocking part 5222, clamp 523, arc-shaped guide groove 5231, return spring 524. Detailed Implementation

[0025] This utility model provides a handle and an execution component for surgery. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1 Please refer to Figure 1-5 As shown, this embodiment discloses a handle, including a handle part 10, a transmission part 20, and a rotating part 30; the handle part 10 includes a fixed handle 11, a movable handle 12 rotatably connected to the fixed handle 11 via a rotating shaft 13, and a reset member 14. The reset member 14 can be a torsion spring, the main body of which is sleeved on the rotating shaft 13. One torsion arm of the torsion spring abuts against the inner wall of the fixed handle 11, and the other torsion arm abuts against the movable handle 12. The torsion spring is used to provide a reset force to open the fixed handle 11 and the movable handle 12.

[0028] Of course, using a torsion spring as the reset element 14 is only one preferred embodiment. In other embodiments, the reset element 14 can also be an elastic element such as a tension spring or a compression spring, and is not limited to this embodiment.

[0029] The transmission unit 20 includes an inner push-pull rod 21, an outer operating sleeve 22 sleeved on the outside of the inner push-pull rod 21, a slide rail 23 connected to one end of the outer operating sleeve 22, and an operating head 24 connected to one end of the inner push-pull rod 21. The inner push-pull rod 21 is driven by the movable handle 12 to move axially. The slide rail 23 is provided with a slide groove 231 extending axially. The operating head 24 can slide axially along the slide groove 231 and is restricted from circumferential rotation. The rotating part 30 is located at the front end of the fixed handle 11 and is fixedly connected to the outer operating sleeve 22. It is used to drive the transmission unit 20 to rotate as a whole.

[0030] When the angle of the actuator 50 needs to be adjusted, the operator can use their thumb to turn the knob 34 of the rotating part 30. The knob 34 drives the rotating shaft 32 fixed to it to rotate, which in turn drives the outer operating sleeve 22 to rotate synchronously. The outer operating sleeve 22 transmits the rotational motion to the slide 23 at its end. Since the operating head 24 is confined within the groove 231 of the slide 23, it can only move axially and cannot rotate circumferentially. Therefore, the rotation of the slide 23 will force the operating head 24 and its connected actuator 50 to deflect circumferentially together, thereby achieving fine adjustment of the angle of the clamped tissue during surgery. This design allows the doctor to easily complete the rotation of the entire transmission part 20 and actuator 50 with just their thumb while holding the handle part 10 with one hand for clamping operations, greatly improving the convenience of operation and surgical efficiency.

[0031] The movable handle 12 and the inner push-pull rod 21 are connected by a movable part 40. The movable part 40 includes a fastener 41 provided at the swing end of the movable handle 12 and a spring ball 42 provided at the end of the inner push-pull rod 21. The fastener 41 is provided with a movable hole 411 extending radially along the rotation axis 13. The spring ball 42 moves in the movable hole 411. The fastener 41 is also provided with a clearance groove 412 for the inner push-pull rod 21 to move.

[0032] When the movable handle 12 is squeezed, it swings around the rotation axis 13, causing the fastener 41 at its end to move as well. The spring ball 42, located at the end of the inner push-pull rod 21, rolls or slides within the movable hole 411 of the fastener 41. Since the movable hole 411 extends radially along the rotation axis 13, the swinging motion of the fastener 41 is converted into radial traction on the spring ball 42, thereby converting the rotational motion of the movable handle 12 into precise linear reciprocating motion of the inner push-pull rod 21. This lever structure amplifies the individual's squeezing force, making operation easy and effortless. The fit between the spring ball 42 and the movable hole 411 allows for minor motion tolerances, ensuring smooth transmission.

[0033] Of course, using the combination of spring ball 42 and movable hole 411 to achieve motion conversion is only a preferred implementation method. In other embodiments, sliders and grooves, linkage mechanisms, etc. can also be used, and it is not limited to this embodiment.

[0034] The fastener 41 can be fixed to the swing end of the movable handle 12 by means of integral molding or detachment. In this embodiment, a detachable fixing method is adopted. Specifically, an embedding groove is provided at the swing end of the movable handle 12, and the fastener 41 is installed into the embedding groove by interference fit.

[0035] The fixed handle 11 includes a handle body 111 and a first grip 112 connected to the lower end of the handle body 111. The first grip 112 has a first buckle hole 1121. The movable handle 12 includes a rotating component 121 rotatably disposed within the handle body 111 and a second grip 122 connected to the lower end of the rotating component 121. The second grip 122 has a second buckle hole 1221. A V-shaped groove 1222 is formed on the back of the connection between the rotating component 121 and the second grip 122. The shape of the V-shaped groove 1222 conforms to the natural curvature of the human hand's web. When the doctor grips the handle with his palm, the web of his hand can be comfortably accommodated within the V-shaped groove 1222. This design significantly increases the contact area between the handle and the hand, improves the stability and comfort of the grip, and effectively reduces hand fatigue caused by prolonged surgical operations.

[0036] The transmission unit 20 also includes an outer slide tube 25 sleeved on the outside of the slide component 23, and a detachable plug 26 located at the end of the outer slide tube 25. The outer slide tube 25 and the detachable plug 26 together form a relatively closed cavity, enclosing the internal structure such as the slide component 23. The plug 26 effectively prevents contaminants from entering the transmission unit 20 during surgery, facilitating thorough cleaning and disinfection of the instrument's outer surface after surgery, and ensuring the cleanliness and reliable operation of the internal transmission mechanism, meeting the high hygiene standards for surgical instruments.

[0037] The rotating part 30 includes a fixed sleeve 31, a rotating shaft 32, a locking element 33, and a knob 34. The fixed sleeve 31 is fixed inside the fixed handle 11 and has an axial rotation hole 311 and a locking hole 312. The rotating shaft 32 is rotatably disposed inside the rotation hole 311, and one end of the rotating shaft 32 has a mounting hole 321. The outer operating sleeve 22 is fixed in the mounting hole 321. The locking element 33 is disposed inside the locking hole 312 and is detachably connected to the rotating shaft 32. The knob 34 is disposed at the end of the fixed handle 11 and is fixedly connected to the rotating shaft 32. The rotating shaft 32 is reliably axially positioned inside the fixed sleeve 31 by the locking element 33, and can rotate smoothly in the rotation hole 311. The knob 34 provides a force point that is easy for thumb operation, and its rotational movement is accurately transmitted to the distal operating head 24 through the rotating shaft 32 and the outer operating sleeve 22.

[0038] The rotating part 30 also includes an internally threaded component 35 and a knob 36. The internally threaded component 35 is fixed inside the knob 36 and threadedly connected to the knob 34. The knob 36 achieves a detachable threaded connection with the knob 34 through its internally threaded component 35. This design allows the knob 36 to be manufactured and its materials selected as an independent component, for example, using a softer material to improve the tactile feel, or using a different color from the handle body to distinguish its function. This also facilitates the replacement, cleaning, and maintenance of the knob 36. Of course, the knob 36 and the knob 34 can also be integrally molded or use other fixing methods; the threaded connection method in this embodiment aims to provide a preferred solution for easy assembly and maintenance.

[0039] The operating head 24 is detachably connected to the end of the inner push-pull rod 21. The operating head 24 and the end of the inner push-pull rod 21 are connected in a detachable manner, such as by threaded connection or snap-fit ​​connection. This design allows the operating head 24 to be quickly replaced with models having different specifications of connection holes 241 according to different surgical needs, greatly improving the versatility of the handle. At the same time, when the operating head 24 wears out due to long-term use, it can be replaced individually, reducing instrument maintenance costs. Of course, in applications where replacing the operating head is not required, the operating head 24 and the inner push-pull rod 21 can also be fixedly connected using a one-piece molding method.

[0040] Example 2 Please refer to Figure 6 This embodiment discloses an execution component for surgery, including a handle as described in Embodiment 1 and an actuator 50 mounted on the front end of the handle; the operating head 24 of the handle is provided with a connection hole 241; the actuator 50 is detachably connected to the handle through the connection hole 241; the actuator 50 includes an elastic connector 51 and two sets of retainers 52 respectively connected to both ends of the elastic connector 51; both sets of retainers 52 in this embodiment are double-clamp structures, and both sets of retainers 52 include a telescopic rod 521, a component clamp 522, two clamps 523 and a return spring 524; the telescopic rod 521 includes a rod body 5211 and hangers provided at both ends of the rod body 5211. Hook 5212 and pull hook 5213 are provided. Hook 5212 is hooked and connected to connecting hole 241 and can be inserted into slide groove 231 and pulled by inner push rod 21. Component clamp 522 has an inner cavity for the rod body 5211 to move, and has an insertion part 5221 and a blocking part 5222. Insertion part 5221 is inserted into slide groove 231 and limited by blocking part 5222. Clamp head 523 is rotatably disposed on component clamp 522 and is opened by pull hook 5213. Return spring 524 is sleeved on the outside of component clamp 522. Return spring 524 is located between clamp head 523 and blocking part 5222 and is used to reset and close the two clamp heads 523.

[0041] During surgery, when it is necessary to lift or retract organs obstructing the surgical field of vision (such as the liver or intestines), medical personnel first hook the hook 5212 of the fixator 52 at one end of the actuator 50 onto the connection hole 241 of the handle operating head 24. Then, the medical personnel pinch the movable handle 12 and the fixed handle 11 together. The swinging of the movable handle 12 drives the inner push-pull rod 21 to retract backward within the slide groove 231 of the slide rail 23 via the movable part 40. The inner push-pull rod 21 moves the operating head 24 at its front end backward together, and the operating head 24 pulls the telescopic rod 521 of the fixator 52 via the hook 5212.

[0042] When the telescopic rod 521 is pulled, its distal hook 5213 moves backward. The hook 5213 acts on the chuck 523 rotatably connected to the component clamp 522, overcoming the elastic force of the return spring 524, causing the two chucks 523 to open outward around their rotation point, forming a ready-to-clamp state. At the same time, the insertion part 5221 of the component clamp 522 is always located within the slide groove 231 and is abutted against the end face of the slide rail 23 by the blocking part 5222. This design ensures that the overall posture of the retainer 52 is stable during the pulling process and will not deflect.

[0043] Next, medical staff guide the opened fixator 52 through the laparoscopic channel to the appropriate clamping position on the target organ (such as the edge of the liver). Then, the medical staff slowly release the movable handle 12. Under the action of the reset element 14 (such as a torsion spring), the movable handle 12 and the fixed handle 11 open and reset, thereby pushing the inner push rod 21 and the operating head 24 forward to reset. The tension of the operating head 24 on the hook 5212 is released. At this time, the compressed reset spring 524 is released, and its elasticity pushes the base of the clamp 523, causing the clamp 523 to rotate around its axis and close inward, thereby firmly and gently clamping the organ tissue. After the clamping of the first fixator 52 is completed, the operating head 24 disengages from the current hook 5212.

[0044] Subsequently, the medical staff rotates the knob 34. The knob 34 rotates the outer operating sleeve 22 and the slide 23 together via the rotating shaft 32. Since the operating head 24 is confined within the slide groove 231, it changes direction as the slide 23 rotates, thereby adjusting the connecting hole 241 to a suitable angle for hooking the second fixator 52. The medical staff repeats the above operation: hooking, pinching the handle to open the clamp 523, positioning, and releasing the handle to close the clamp 523, clamping the second fixator 52 onto another tissue or abdominal wall.

[0045] Finally, the elastic connector 51 connecting the two fixators 52 is tensioned, like a miniature elastic sling, stably lifting or pulling away organs that previously obstructed the field of vision, providing a clear and stable surgical field for subsequent surgical operations.

[0046] This application allows doctors to smoothly perform all operations with one hand—gripping the handle, triggering the clamping action, and rotating the instrument tip—without needing to switch hands or rely on an assistant. This significantly improves the efficiency and precision of operations within confined laparoscopic spaces. The elastic connector 51 not only provides flexible traction force, reducing tissue damage, but its elastic properties also allow the pulled organ to adapt to breathing or slight physiological activity, avoiding the risk of excessive traction or tearing.

[0047] Example 3 Please refer to Figure 8This embodiment discloses an actuator 50, which includes an elastic connector 51 and two sets of retainers 52 respectively connected to both ends of the elastic connector 51. One set of retainers 52 has a double-clamp structure with two clamps 523, while the other set has a single-clamp structure with one clamp 523. This hybrid design allows the actuator 50 to adapt to different clamping requirements. The double-clamp structure retainer 52, with its two clamping points, provides a more stable and secure clamping force, suitable for clamping major tissues or organs requiring greater traction (such as the edge of the liver). The single-clamp structure retainer 52 is more compact and flexible, facilitating operation in confined spaces, and is suitable for clamping the abdominal wall or other thinner tissues. This combination ensures traction while improving the adaptability and ease of operation of the device.

[0048] like Figures 9 to 12 As shown, one of the fixing devices 52 includes a telescopic rod 521, a component clamp 522, two clamps 523, and a return spring 524; the telescopic rod 521 includes a rod body 5211 and hooks 5212 and pull hooks 5213 at both ends of the rod body 5211. The hooks 5212 are hooked and connected to the connecting hole 241 and can be inserted into the slide groove 231 and pulled by the inner push-pull rod 21; the component clamp 522 has an inner cavity for the rod body 5211 to move and has an insertion part 5 Insertion part 5221 and blocking part 5222 are integrally formed. Insertion part 5221 is inserted into slide groove 231 and limited by blocking part 5222. Clamp 523 is rotatably disposed on component clamp 522 and is opened by pulling hook 5213. Return spring 524 is sleeved on the outside of component clamp 522 and is located between clamp 523 and blocking part 5222. Return spring 524 is used to return the two clamps 523 to their original closed position. Its basic operation process is as follows: when the inner push-pull rod 21 pulls the telescopic rod 521 through operating head 24 and hook 5212, the hook 5213 moves backward, overcoming the elastic force of return spring 524, forcing the two clamps 523 to rotate around their axis and open. When the pulling force is released, return spring 524 pushes the base of clamp 523, causing it to rotate in the opposite direction and close. The one-piece molded insertion part 5221 and blocking part 5222 ensure the stability and precise alignment of the connection between the component clamp 522 and the handle slide 23, preventing shaking during operation.

[0049] Furthermore, the chuck 523 is provided with an arc-shaped guide groove 5231, and the hook 5213 cooperates with the arc-shaped guide groove 5231 to convert the linear motion of the hook 5213 into the oscillation of the chuck 523. The end of the hook 5213 is placed in the arc-shaped guide groove 5231. When the hook 5213 makes a linear motion, its contact point with the arc-shaped guide groove 5231 changes accordingly. Through the constraint and guidance of the groove wall on the hook 5213, the linear tension is smoothly converted into a torque that drives the chuck 523 to oscillate around the axis. This design makes the force transmission more efficient, the action smoother, reduces the risk of jamming, and ensures the consistency of the opening and closing angle of the chuck 523.

[0050] Furthermore, the elastic connector 51 is made of nickel-titanium wire. Nickel-titanium wire possesses superelasticity and shape memory properties, giving it significant advantages as an elastic connector 51. Its superelasticity allows the elastic connector 51 to undergo significant recoverable deformation after being stretched, thereby providing continuous, gentle traction and avoiding tissue damage. Simultaneously, its excellent biocompatibility and corrosion resistance meet the requirements for long-term implantation. Of course, other elastic materials with similar mechanical properties can also be used for the elastic connector 51, such as medical-grade stainless steel wire and polymer elastomers; nickel-titanium wire is one of the preferred and superior options.

[0051] like Figures 13 to 16 As shown, another fixing device 52 includes a telescopic rod 521, a component clamp 522, a clamp head 523, and a return spring 524. The telescopic rod 521 includes a rod body 5211 and hooks 5212 and pull hooks 5213 at both ends of the rod body 5211. The hooks 5212 are hooked and connected to the connecting hole 241 and can be inserted into the slide groove 231 and pulled by the inner push-pull rod 21. The component clamp 522 has an inner cavity for the rod body 5211 to move and has an insertion part 5221. The insertion part 5221 is inserted into the slide groove 231 and limited by the blocking part 5222. The clamp head 523 is rotatably disposed on the component clamp 522 and is opened by pulling the pull hook 5213. The return spring 524 is sleeved on the outside of the component clamp 522 and is located between the clamp head 523 and the blocking part 5222. The return spring 524 is used to reset and close the clamp head 523. The operating principle of the single-clamp retainer 52 is similar to that of the double-clamp type. The linear motion of the hook 5213 drives the single clamp 523 to swing and achieve opening and closing. Its structure is more compact, requires less operating space, and is particularly suitable for precise clamping in areas with limited visibility or uneven tissue surfaces.

[0052] The component clamp 522 also has a blocking part 5222, which is a collar that fits around the outside of the component clamp 522, but is not inside. Figure 14The retaining ring 5222, shown in the image, is mounted as a separate component on the main body of the component clamp 522. Its main function is to precisely define the axial position of the return spring 524 and serve as a support point for the spring force. This split design simplifies the structure of the main body of the component clamp 522, reduces machining difficulty, and also facilitates assembly and subsequent maintenance and replacement. The retaining ring and the component clamp 522 can be reliably connected using various methods such as interference fit, threaded connection, or pin fixing.

[0053] Example 4 Please refer to Figures 17-24 This embodiment discloses an actuator 50, which includes an elastic connector 51 and two sets of fixators 52 respectively connected to both ends of the elastic connector 51. Both sets of fixators 52 are double-clamp structures, and each fixator 52 has two clamps 523. The main feature of this embodiment is that its elastic connector 51 adopts a telescopic structure with actively adjustable length. The two sets of double-clamp fixators 52 ensure that when large or heavy organs (such as the liver or spleen) need to be supported, both sides can provide sufficiently strong and stable clamping force to prevent slippage. The core advantage of the entire system is that the traction distance can be controlled and adjusted through the telescopic mechanism, thereby dynamically adapting to different surgical exposure requirements.

[0054] In this embodiment, the elastic connector 51 is a telescopic device, including an inner tube 511 and an outer tube 512 sleeved outside the inner tube 511, a first telescopic end 513 and a second telescopic end 514, a silicone tube 515, a first sliding plate 516, a second sliding plate 517, a slider 518, and a tension spring 519; the inner tube 511 and the outer tube 512 sleeved outside the inner tube 511; the first telescopic end 513 and the second telescopic end 514 are respectively fixed to the ends of the inner tube 511 and the outer tube 512, and are connected to the corresponding fixing device 52 through the silicone tube 515; the first sliding plate 516 and the second sliding plate 517 are arranged crosswise through the slider 518, and the first sliding plate 516 and the second sliding plate 517 are respectively connected to the first telescopic end 513 and the second telescopic end 514; the tension spring 519 is sleeved outside the first sliding plate 516 and the second sliding plate 517, and its left and right ends are hooked and connected to the left end of the first sliding plate 516 and the right end of the second sliding plate 517, respectively.

[0055] In its natural state, the restoring force of the tension spring 519 causes the first sliding plate 516 and the second sliding plate 517 to converge through the slider 518, bringing the first telescopic end 513 and the second telescopic end 514 closer together. This keeps the telescopic device at its shortest initial length, facilitating passage through the trocar channel. After medical personnel clamp the two fixators 52 onto the target tissue, they can pull the two fixators 52 to the sides using the operating handle or auxiliary instruments. At this time, the pulling force overcomes the elasticity of the tension spring 519, forcing the first sliding plate 516 and the second sliding plate 517 to slide outward along the slider 518. The inner tube 511 and the outer tube 512 undergo relative displacement, increasing the distance between the first telescopic end 513 and the second telescopic end 514. This precisely extends the total length of the elastic connector 51, achieving active and controllable traction on the organ. Once the ideal exposure field is achieved, the external force is stopped, and the telescopic device locks at that length under the tension of the tension spring 519, providing stable support.

[0056] This design is particularly suitable for surgical scenarios requiring significant lifting or unfolding of large organs. It offers a greater range of adjustment and more defined support than fixed-length nickel-titanium wires, while retaining elastic cushioning to prevent tissue damage from excessive traction. The silicone tube 515 provides a flexible connection, allowing the fixator 52 a degree of freedom of movement to adapt to the physiological shape of the organ.

[0057] The preferred embodiments of this utility model have been described in detail above. However, this invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this invention.

Claims

1. A handle, characterized in that, include: The handle part (10) includes a fixed handle (11) and a movable handle (12) rotatably connected to the fixed handle (11). The transmission unit (20) includes an inner push-pull rod (21), an outer operating sleeve (22) sleeved on the outside of the inner push-pull rod (21), a slide rail (23) connected to one end of the outer operating sleeve (22), and an operating head (24) connected to one end of the inner push-pull rod (21). The inner push-pull rod (21) is driven to move axially by the movable handle (12). The slide rail (23) is provided with a slide groove (231) extending axially. The operating head (24) can slide axially along the slide groove (231) and is restricted from circumferential rotation. The rotating part (30) is located at the front end of the fixed handle (11) and is fixedly connected to the outer operating sleeve (22) to drive the transmission part (20) to rotate as a whole.

2. The handle according to claim 1, characterized in that, The handle part (10) further includes a rotating shaft (13) and a reset member (14). The fixed handle (11) and the movable handle (12) are rotatably connected through the rotating shaft (13). The reset member (14) is used to provide a reset force to open the fixed handle (11) and the movable handle (12).

3. The handle according to claim 2, characterized in that, The movable handle (12) and the inner push-pull rod (21) are connected by a movable part (40). The movable part (40) includes a fastener (41) provided at the swing end of the movable handle (12) and a spring ball (42) provided at the end of the inner push-pull rod (21). The fastener (41) is provided with a movable hole (411) extending radially along the rotation axis (13). The spring ball (42) moves in the movable hole (411). The fastener (41) is also provided with a clearance groove (412) for the inner push-pull rod (21) to move.

4. The handle according to claim 1, characterized in that, The fixed handle (11) includes a handle body (111) and a first grip (112) connected to the lower end of the handle body (111). The first grip (112) is provided with a first buckle hole (1121). The movable handle (12) includes a rotating component (121) rotatably disposed in the handle body (111) and a second grip (122) connected to the lower end of the rotating component (121). The second grip (122) is provided with a second buckle hole (1221). A V-groove (1222) is formed on the back of the connection between the rotating component (121) and the second grip (122).

5. The handle according to claim 1, characterized in that, The transmission part (20) also includes a slide outer tube (25) sleeved on the outside of the slide part (23) and a plug (26) detachably disposed at the end of the slide outer tube (25).

6. The handle according to claim 1, characterized in that, The rotating part (30) includes: The fixing sleeve (31) is fixed inside the fixing handle (11) and has an axial rotation hole (311) and a locking hole (312). A rotating shaft (32) is rotatably disposed in the rotating hole (311), and one end of it is provided with a mounting hole (321). The outer operating sleeve (22) is fixed in the mounting hole (321). A locking element (33) is provided in the locking hole (312) and is detachably connected to the rotating shaft (32); A knob (34) is located at the end of the fixed handle (11) and is fixedly connected to the rotating shaft (32).

7. The handle according to claim 6, characterized in that, The rotating part (30) also includes an internal threaded part (35) and a screw cap (36), the internal threaded part (35) being fixed inside the screw cap (36) and threadedly connected to the knob part (34).

8. The handle according to claim 1, characterized in that, The operating head (24) is detachably connected to the end of the inner push-pull rod (21).

9. An execution component for surgery, characterized in that, include: The handle as described in any one of claims 1-8, wherein the operating head (24) is provided with a connection hole (241). The actuator (50) is detachably connected to the handle via the connection hole (241); The actuator (50) includes an elastic connector (51) and two sets of retainers (52) respectively connected to both ends of the elastic connector (51); The fastener (52) includes: The telescopic rod (521) includes a rod body (5211) and hooks (5212) and pull hooks (5213) provided at both ends of the rod body (5211). The hooks (5212) are hooked and connected to the connecting hole (241) and can be inserted into the slide groove (231) and pulled by the inner push rod (21). The component clamp (522) has an inner cavity for the rod (5211) to move, and has an insertion part (5221) and a blocking part (5222). The insertion part (5221) is inserted into the slide groove (231) and is limited by the blocking part (5222). At least one clamp (523) is rotatably disposed in the component clamp (522) and is opened by being pulled by the hook (5213); A return spring (524) is sleeved on the outside of the component clamp (522) and located between the clamp (523) and the blocking part (5222) to reset and close the clamp (523).

10. The execution component according to claim 9, characterized in that, The chuck (523) is provided with an arc-shaped guide groove (5231), and the hook (5213) cooperates with the arc-shaped guide groove (5231) to convert the linear motion of the hook (5213) into the swing of the chuck (523).

11. The execution component according to claim 9, characterized in that, Of the two sets of fixtures (52), one set is a double-clamp structure with two clamps (523); the other set is a single-clamp structure with one clamp (523).

12. The execution component according to claim 9, characterized in that, Both sets of the retainers (52) are double clamp structures.

13. The execution component according to claim 9, characterized in that, Both sets of the fixtures (52) are single-clamp structures.

14. The execution component according to claim 9, characterized in that, The elastic connector (51) is a nickel-titanium wire.

15. The execution component according to claim 9, characterized in that, The elastic connector (51) is a telescopic member, comprising: Inner tube (511) and outer tube (512) sleeved on the outside of the inner tube (511); The first telescopic end (513) and the second telescopic end (514) are fixed to the ends of the inner tube (511) and the outer tube (512) respectively, and are connected to the corresponding fixtures (52) through silicone tubes (515). The first slide (516) and the second slide (517) are arranged in a cross configuration via a slider (518). The first slide (516) and the second slide (517) are respectively connected to the first telescopic end (513) and the second telescopic end (514). A tension spring (519) is sleeved on the outside of the first slide (516) and the second slide (517), with its left and right ends hooked and connected to the left end of the first slide (516) and the right end of the second slide (517), respectively.

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