Single-hand-operated rotating wheel type grasping forceps

Abstract

The utility model discloses a single-hand operation rotary wheel type grasping forceps, which comprises a forceps rod, a forceps head part, a handle part, a driving part, a guide wire and a self-locking structure, two ends of the forceps rod are respectively an operation end and an operation end, and the forceps head part is movably arranged at the operation end between a completely opened state and a clamped state. The handle component is connected to the operation end, the driving component comprises a rotating wheel and a pushing screw rod, the pushing screw rod is movably arranged on the handle component, the rotating wheel is rotatably arranged on the handle component, the rotating wheel is in threaded fit with the pushing screw rod, and the rotating wheel rotates to drive the pushing screw rod to move. The guide wire is arranged in the forceps rod, and the two ends of the guide wire are connected with the pushing screw and the forceps head part correspondingly so as to drive the forceps head part to move when the rotating wheel rotates. The self-locking structure is used for limiting rotation of the rotating wheel when matched with the rotating wheel and / or limiting movement of the pushing screw when matched with the pushing screw. An operator holds the handle part with one hand, two fingers are additionally distributed to rotate the rotating wheel, use is easy, and the operation difficulty is low.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a single-handed rotary gripper. Background Technology

[0002] Heart defects refer to defects that occur in the atrial or ventricular septum during fetal development, forming a gap that fails to close. It is one of the most common types of congenital heart disease. With the development of interventional treatment techniques, interventional closure has become the preferred method.

[0003] Interventional surgery is a modern, high-tech, minimally invasive treatment method. Through femoral vein puncture, guided by medical imaging equipment, a guide wire is delivered to the affected area. A delivery catheter is then guided along the guide wire to the lesion. Finally, an occluder is clamped within the delivery catheter and pushed to the defect site to seal the heart defect, achieving the therapeutic goal. This minimally invasive interventional treatment has advantages such as being non-surgical, minimally invasive, having fewer complications, faster recovery, better efficacy, a wider range of indications, and relatively lower surgical costs.

[0004] In related technologies, the clamps used to push the occluder during interventional surgery have the following problems: complex operation, requiring both hands to grasp and release, and even requiring an assistant to complete the operation. In addition, it is necessary to maintain the clamping force on the clamps to ensure the clamping effect of the occluder. The operation is difficult, the stability is poor, and it is easy to accidentally release the occluder, which will affect the progress of the operation.

[0005] In view of this, there is an urgent need to design a new clamp to overcome the aforementioned defects of existing clamps. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a single-handed rotary gripper, which is simple to use, can be operated with one hand, and is highly stable, thus reducing the risk of misoperation.

[0007] A single-handed rotary gripper according to an embodiment of the present invention includes: a gripper bar with an operating end and a surgical end at its two ends; a gripper head component located at the surgical end and movably disposed on the gripper bar between a fully open state and a clamping state; a handle component connected to the operating end of the gripper bar; a drive component including a rotary wheel and a push screw, the push screw being movably disposed on the handle component, the rotary wheel being rotatably disposed on the handle component, and the rotary wheel being threadedly engaged with the push screw, the rotation of the rotary wheel driving the push screw to move; the handle component can be held with one hand and the rotary wheel can be rotated with the same hand; a guide wire disposed inside the gripper bar, the two ends of the guide wire being respectively connected to the push screw and the gripper head component, so as to drive the gripper head component to move when the rotary wheel rotates; and a self-locking structure for restricting the rotation of the rotary wheel when engaged with the rotary wheel, and / or restricting the movement of the push screw when engaged with the push screw.

[0008] According to an embodiment of this utility model, the single-handed rotary gripper converts rotary motion into linear motion by utilizing the cooperation of the rotary wheel and the push screw. The operator holds the handle with one hand and uses two additional fingers to rotate the rotary wheel to complete the drive. It can be operated with one hand, making it simple to use and easy to operate. The frictional force of the threaded engagement between the rotary wheel and the push screw also restricts the movement of the push screw. The single-handed rotary gripper has a self-locking function, automatically holding the gripper head in the desired position, improving the operational stability of the single-handed rotary gripper. Furthermore, the self-locking structure further restricts the movement of the push screw, ensuring the gripper head remains stably in the desired position, further enhancing the anti-interference capability of the single-handed rotary gripper, reducing the occurrence of misoperation, and improving the working reliability of the single-handed rotary gripper.

[0009] In some embodiments, the handle component includes: a guide rod having a guide groove extending along the length of the guide rod, a push screw slidably engaging within the guide groove, the push screw having a first external thread extending out of the guide groove, and a rotating wheel sleeved outside the guide rod, the rotating wheel having a first internal thread engaging with the first external thread.

[0010] In some embodiments, the self-locking structure includes a first limiting surface and a second limiting surface disposed on the handle component, the first limiting surface and the second limiting surface being located at both ends of the first external thread of the push screw along the axial direction; the self-locking structure further includes a first stop surface and a second stop surface disposed on the handle component, the first stop surface and the second stop surface being located at both ends of the first internal thread of the rotating wheel along the axial direction, the first stop surface and the second limiting surface being disposed face-to-face opposite each other, and the second stop surface and the first limiting surface being disposed face-to-face opposite each other; when the push screw abuts against the second limiting surface and the rotating wheel abuts against the first stop surface, the pliers head component is locked in one of the fully open state and the clamping state; when the push screw abuts against the first limiting surface and the rotating wheel abuts against the second stop surface, the pliers head component is locked in the other of the fully open state and the clamping state; when the push screw moves between the first limiting surface and the second limiting surface, the pliers head component moves between the fully open state and the clamping state, and the pliers head component moves progressively.

[0011] In some embodiments, the guide rod includes: a smooth section, the outer peripheral surface of which is a smooth cylindrical surface; a threaded section, the outer peripheral surface of which is provided with a second external thread, the threaded section being located at at least one end of the smooth section in the axial direction; a rotating wheel movable along the length direction of the guide rod, the rotating wheel having a first position where the first internal thread is located on the smooth section, and the rotating wheel also having a second position where the first internal thread is threadedly engaged with the second external thread; when the rotating wheel rests on the first stop surface and / or the second stop surface, the rotating wheel is located in the second position; when the rotating wheel is located in the first position, the rotating wheel has a clearance fit with the first stop surface and the second stop surface.

[0012] In some embodiments, the self-locking structure further includes a locking ball and a slot that engage with each other, one of the locking ball and the slot being disposed on the wheel, and the other of the locking ball and the slot being disposed on the first stop surface and / or the second stop surface of the handle component.

[0013] In some embodiments, the end face of the rotating wheel facing the first stop surface is provided with the slot, and the first stop surface is provided with the locking bead for engaging in the slot; and / or the end face of the rotating wheel facing the second stop surface is provided with the slot, and the second stop surface is provided with the locking bead for engaging in the slot.

[0014] In some embodiments, the handle component is further provided with a mounting channel corresponding to the lock ball, and one end of the mounting channel facing the rotating wheel has an outlet. The lock ball is movably disposed in the mounting channel and at least partially exposed from the outlet. The self-locking structure further includes an elastic element, which is installed in the mounting channel and connected to the lock ball, and stops the lock ball from facing the outlet.

[0015] In some embodiments, the guide groove is radially through the guide rod, and the first external thread protruding from the guide groove is provided on both sides of the push screw.

[0016] In some embodiments, the handle component includes: a boss connected to one end of the guide rod near the operating end; the first limiting surface and the first stop surface are integral surfaces and are both formed on the boss.

[0017] In some embodiments, the boss and the guide rod are integrally formed, and the boss has a through hole for the guide wire to pass through, the through hole being connected to the guide groove.

[0018] In some embodiments, one end of the guide rod is connected to the operating end of the clamp bar, and the guide groove is provided with a second limiting surface, which is farther away from the operating end than the first limiting surface; the handle component further includes a grip rod, which is connected to the other end of the guide rod, and a second stop surface is formed on the grip rod.

[0019] In some embodiments, when the push screw abuts against the second limiting surface and the rotating wheel abuts against the first stop surface, the clamping head component is in the clamping state; when the push screw abuts against the first limiting surface and the push screw rests against the first limiting surface, the clamping head component is in the fully open state.

[0020] In some embodiments, the pliers head component includes: two pliers blades, the two pliers blades being rotatably disposed on the pliers bar, and the pliers blades being provided with anti-dislodgement teeth.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a single-handed rotary gripper according to an embodiment of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of a single-handed rotary gripper according to an embodiment of the present invention;

[0024] Figure 3 This is an exploded view of the handle and drive components of a single-handed rotary gripper according to an embodiment of the present invention;

[0025] Figure 4 This is an exploded view of the handle and drive components of a single-handed rotary gripper according to an embodiment of the present invention from another angle.

[0026] Figure 5 This is a schematic diagram of the handle and drive components of a single-handed rotary gripper according to an embodiment of the present invention;

[0027] Figure 6 This is an assembly diagram of the guide rod and the push screw according to an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the structure of a rotary wheel according to an embodiment of the present invention.

[0029] Figure label:

[0030] 100-type rotary gripper for one-handed operation;

[0031] Forceps 1; Operating end 1a; Surgical end 1b;

[0032] Pliers head component 2;

[0033] Handle component 3; guide rod 31; guide groove 311; smooth section 31a; threaded section 31b; second external thread 312; fixing block 313; boss 32; through hole 321; grip 33; mounting channel 331;

[0034] Drive component 4; Rotary wheel 41; First internal thread 411; Push screw 42; First external thread 421;

[0035] Guide wire 5;

[0036] 6; self-locking structure; 61; 62; 63; 64; 65; 66; 67; elastic element;

[0037] Connector 7;

[0038] First direction X; second direction Y. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0041] The following description, with reference to the accompanying drawings, describes a single-handed rotary gripper 100 according to an embodiment of the present invention.

[0042] According to an embodiment of the present utility model, the single-handed rotary gripper 100, such as... Figure 1 As shown, the single-handed rotary gripper 100 includes: a gripper bar 1, a gripper head component 2, and a handle component 3. The two ends of the gripper bar 1 are the operating end 1a and the surgical end 1b, respectively. The gripper head component 2 is located at the surgical end 1b of the gripper bar 1, and the handle component 3 is connected to the operating end 1a of the gripper bar 1.

[0043] The clamp bar 1, clamp head component 2, and handle component 3 are the main components of the single-handed rotary gripper 100. When operating the single-handed rotary gripper 100, the operator holds the handle component 3 and inserts the clamp head component 2 into the patient's area. The clamp head component 2 can move between the fully open state and the clamping state, and can perform a variety of actions.

[0044] Exemplarily, optionally, the clamp head component 2 can be moved from a clamped state to a fully open state, thereby releasing the component; or, optionally, the clamp head component 2 can be moved from a fully open state to a clamped state, thereby clamping the component.

[0045] Alternatively, as an example, the jaw component 2 may also have a slightly open state that transitions between a fully open state and a clamping state. The jaw component 2 can move from the slightly open state to the fully open state to expand the component; or the jaw component 2 can move from the fully open state to the slightly open state to clamp the component. The operable actions of the jaw component 2 can be selected according to actual needs. The jaw component 2 has a fully open state and a clamping state, and can move between the fully open state and the clamping state.

[0046] like Figures 1-3 As shown, the single-handed rotary gripper 100 further includes a drive component 4 and a guide wire 5, which are elements that drive the movement of the gripper head component 2. The drive component 4 includes a rotary wheel 41 and a push screw 42. The push screw 42 is movably mounted on the handle component 3, and the rotary wheel 41 is rotatably mounted on the handle component 3, with the rotary wheel 41 and the push screw 42 threadedly engaged. The guide wire 5 is disposed inside the gripper bar 1, and its two ends are respectively connected to the push screw 42 and the gripper head component 2, so as to drive the gripper head component 2 to move when the rotary wheel 41 rotates.

[0047] The driving component 4 is the active component, and the operator drives the rotating wheel 41 to rotate, thereby moving the clamp head component 2. The guide wire 5 is the driven component, and it is connected between the push screw 42 and the clamp head component 2. Under the drive of the driving component 4, the guide wire 5 moves the clamp head component 2. When the guide wire 5 is driven to move relative to the length of the clamp bar 1, it causes the clamp head component 2 to move between a fully open state and a clamped state.

[0048] This embodiment of the single-handed rotary gripper 100 utilizes the cooperation of a rotary wheel 41 and a push screw 42 to drive the guide wire 5 to move. The rotary wheel 41 is rotatably mounted on the handle component 3, and the push screw 42 is movably mounted on the handle component 3. The rotary wheel 41 and the push screw 42 are threadedly engaged. When the operator drives the rotary wheel 41 to rotate, the threaded engagement between the rotary wheel 41 and the push screw 42 converts the rotary motion into linear motion. The push screw 42 moves relative to the handle component 3 under the engagement of the rotary wheel 41. Subsequently, the movement of the push screw 42 drives the guide wire 5 to move relative to the length direction of the gripper bar 1, ultimately causing the gripper head component 2 to move between a fully open state and a clamped state.

[0049] In related technologies, the driving component slides relative to the length of the clamp bar to drive the guide wire to move.

[0050] In this embodiment of the invention, the guide wire 5 is moved by the cooperation of the rotating wheel 41 and the push screw 42. Firstly, the control of the driving component 4 is simpler. The operator holds the handle component 3 with one hand and uses two additional fingers to rotate the rotating wheel 41, thus driving the forceps head component 2 to move between the fully open and clamping states. The driving component 4 can be driven with one hand, unlike in related technologies where one hand holds the handle and the other pulls or pushes the driving component. The single-handed rotating wheel-type forceps 100 of this embodiment can be operated with one hand, reducing operational difficulty and facilitating surgery. Furthermore, placing the rotating wheel 41 on the handle component 3 further reduces the difficulty of rotating the rotating wheel 41 while holding the handle component 3.

[0051] Secondly, the rotating wheel 41 and the push screw 42 are threadedly engaged, and the friction between the threads restricts the movement of the push screw 42, resulting in stronger working stability of the jaw head component 2. When the rotating wheel 41 drives the push screw 42 to a certain position, the jaw head component 2 is moved to a certain state. Due to the frictional limit between the threads, even if the force applied to the rotating wheel 41 is removed, the push screw 42 will remain stably in this position, and the jaw head component 2 will remain in this state. Even if affected by a certain external force, the push screw 42 will remain stably in this position. Compared with related technologies, which require continuous force to overcome the influence of external forces to maintain the state of the jaw head component, the single-handed rotating wheel gripper 100 of this utility model has a self-locking function, which can automatically keep the jaw head component 2 in the required state, and has strong anti-interference ability. This can further reduce the operating difficulty of the single-handed rotating wheel gripper 100 and improve its working stability.

[0052] Thirdly, the threaded engagement of the rotary wheel 41 and the push screw 42 allows for higher precision in the movement of the jaw component 2. It is worth noting that the engagement between the rotary wheel 41 and the push screw 42 is quite precise; for each rotation of the rotary wheel 41, the push screw 42 moves a fixed distance, and correspondingly, the jaw component 2 moves by a fixed dimension. In this embodiment of the single-handed rotary gripper 100, the jaw component 2 achieves progressive clamping or opening under the rotation of the rotary wheel 41, making it easy to control the degree of clamping or opening of the jaw component 2. Furthermore, adjusting the degree of clamping or opening of the jaw component 2 is relatively simple. For example, when the rotary wheel 41 rotates two full rotations, if the jaw component 2 moves too far from the fully open state to the clamped state, the rotary wheel 41 can be driven to retract one full rotation, allowing for more precise adjustment of the state of the jaw component 2. Compared to related technologies where the state of the jaw component can only be adjusted by feel, the single-handed rotary gripper 100 of this embodiment is easier to operate and more precise.

[0053] The single-handed rotary gripper 100 also includes a self-locking structure 6. The self-locking structure 6 restricts the rotation of the rotary wheel 41 when engaged with it, and / or restricts the movement of the push screw 42 when engaged with it. The single-handed rotary gripper 100 of this embodiment utilizes the threaded engagement between the rotary wheel 41 and the push screw 42 to achieve self-locking. The self-locking structure 6 further enhances the restriction effect on the rotary wheel 41 and / or the push screw 42, further improving the working stability of the gripper head component 2.

[0054] Optionally, the self-locking structure 6 may be used only to restrict the rotation of the rotating wheel 41 when it is engaged with the rotating wheel 41; or, alternatively, the self-locking structure 6 may also be used only to restrict the movement of the push screw 42 when it is engaged with the push screw 42; or, alternatively, the self-locking structure 6 may restrict the rotation of the rotating wheel 41 when it is engaged with the rotating wheel 41, and simultaneously restrict the movement of the push screw 42 when it is engaged with the push screw 42. All of these fall within the protection scope of this utility model and can be selected according to actual needs.

[0055] The self-locking structure 6 restricts the rotation of the rotary wheel 41, and also restricts the movement of the push screw 42 through threaded engagement. Therefore, by setting the self-locking structure 6, the movement of the push screw 42 can be restricted, thereby restricting the movement of the guide wire 5. The ultimate goal is to limit the state of the jaw assembly 1, ensuring that the jaw assembly 1 is stably maintained in the required state. This structure further enhances the anti-interference capability of the single-handed rotary gripper 100, reduces the occurrence of misoperation, lowers the operational difficulty of the single-handed rotary gripper 100, and improves the operational reliability of the single-handed rotary gripper 100.

[0056] By way of example, in this embodiment of the invention, the single-handed rotary gripper 100 is used to clamp and deliver the occluder. By setting a self-locking structure 6, the movement of the push screw 42 is restricted, and the gripper head component 1 is kept in a clamped state. When delivering the occluder, the doctor can focus on driving the occluder without having to maintain a clamping force on the single-handed rotary gripper 100. While ensuring the clamping effect of the occluder, it also reduces the possibility of accidental release of the occluder due to accidental contact, thus improving the reliability of the single-handed rotary gripper 100.

[0057] The single-handed rotary gripper 100 according to this utility model embodiment utilizes the cooperation of the rotary wheel 41 and the push screw 42 to convert rotary motion into linear motion. The operator holds the handle component 3 with one hand and uses two additional fingers to rotate the rotary wheel 41 to complete the drive. It can be operated with one hand, is simple to use, and has low operational difficulty. The frictional force of the threaded engagement between the rotary wheel 41 and the push screw 42 also restricts the movement of the push screw 42. The single-handed rotary gripper 100 has a self-locking function, which automatically holds the gripper head component 2 in the required state, improving the operational stability of the single-handed rotary gripper 100. Furthermore, by setting the self-locking structure 6, the movement of the push screw 42 can be further restricted, ensuring the gripper head component 1 is stably held in the required state, further improving the anti-interference capability of the single-handed rotary gripper 100, reducing the occurrence of misoperation, and improving the working reliability of the single-handed rotary gripper 100.

[0058] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the handle component 3 includes: a guide rod 31, a guide groove 311 extending along the length of the guide rod 31, a push screw 42 slidably fitted in the guide groove 311, the push screw 42 having a first external thread 421 extending out of the guide groove 311, and a rotating wheel 41 sleeved on the outside of the guide rod 31, the rotating wheel 41 having a first internal thread 411 that mates with the first external thread 421.

[0059] The push screw 42 is threadedly engaged with the first internal thread 411 of the rotating wheel 41 via the first external thread 421. The push screw 42 is fitted within the guide groove 311, with the first external thread 421 extending out of the guide groove 311. This limits the push screw 42 to move only within the guide groove 311 and prevents it from rotating relative to the guide rod 31, resulting in strong motion stability. The rotating wheel 41 is sleeved outside the guide rod 31, which is also sleeved outside the push screw that slides inside the guide rod 31. The rotating wheel 41 can rotate relative to the guide rod 31. The threaded engagement between the rotating wheel 41 and the push screw 42 converts rotary motion into linear motion, driving the push screw 42 to move along the length of the guide rod 31, which in turn drives the guide wire 5 to move relative to the length of the clamp rod 1.

[0060] By providing a guide groove 311 inside the guide rod 31 and extending the first external thread 421 of the push screw 42 out of the guide groove 311, the push screw 42 achieves self-limiting by its own structure, which can save the need for additional limiting structures, reduce manufacturing costs, and help reduce the weight of the single-handed rotary gripper 100, making it easier to use.

[0061] In some embodiments of this utility model, such as Figure 5 and Figure 6As shown, the cross-sectional shape of the guide groove 311 is rectangular, and the part of the push screw 42 located inside the guide groove 311 is also rectangular with the same shape as the guide groove 311. The push screw 42 can only move along the extension direction of the guide groove 311 and cannot rotate relative to the guide rod 31. The push screw 42 has strong motion stability.

[0062] In some embodiments of this utility model, the self-locking structure 6 includes a first limiting surface 61 and a second limiting surface 62 provided on the handle component 3. The first limiting surface 61 and the second limiting surface 62 are located at the two ends of the first external thread 421 of the push screw 42 along the axial direction.

[0063] It is worth noting that the aforementioned axial direction refers to the thread extension direction of the first external thread 421 or the first internal thread 411. The rotating wheel 41 is sleeved on the outside of the push screw 42 and is threadedly engaged with the first internal thread 411. Therefore, the thread extension direction of the first external thread 421 is consistent with the thread extension direction of the first internal thread 411.

[0064] The push screw 42, driven by the rotating wheel 41, moves along the thread extension direction of the first external thread 421. Therefore, a first limiting surface 61 and a second limiting surface 62 are provided at both ends of the first external thread 421 in the axial direction. The push screw 42 moves from the first limiting surface 61 to the second limiting surface 62, or from the second limiting surface 62 to the first limiting surface 61, driven by the rotating wheel 41. Figure 2 As shown, the direction from the first limiting surface 61 to the second limiting surface 62 is the first direction X, and the direction from the second limiting surface 62 to the first limiting surface 61 is the second direction Y, in order to describe and understand this utility model.

[0065] The movement of the push screw 42 can be restricted by setting the first limiting surface 61 and the second limiting surface 62. When the push screw 42 abuts against the second limiting surface 62, the movement of the push screw 42 in the first direction X is restricted; when the push screw 42 abuts against the first limiting surface 61, the movement of the push screw 42 in the second direction Y is restricted.

[0066] The self-locking structure 6 also includes a first stop surface 63 and a second stop surface 64 disposed on the handle component 3. The first stop surface 63 and the second stop surface 64 are located at the two ends of the first internal thread 411 of the rotating wheel 41 along the axial direction. The first stop surface 63 is disposed face-to-face with the second limiting surface 62, and the second stop surface 64 is disposed face-to-face with the first limiting surface 61. Therefore, the direction from the first stop surface 63 to the second stop surface 64 is opposite to the direction from the second limiting surface 62 to the first limiting surface 61. The direction from the first stop surface 63 to the second stop surface 64 is the first direction X, and the direction from the second stop surface 64 to the first stop surface 63 is the second direction Y.

[0067] The rotating wheel 41 and the push screw 42 are threaded together. Therefore, by setting a first stop surface 63 and a second stop surface 64 to limit the movement of the rotating wheel 41, the movement of the rotating wheel 41 can be further restricted. When the push screw 42 abuts against the second stop surface 62 and the rotating wheel 41 abuts against the first stop surface 63, the second stop surface 62 restricts the movement of the push screw 42 in the first direction X, while the first stop surface 63 restricts the movement of the rotating wheel 41 and the push screw 42 in the second direction Y. The second stop surface 62 and the first stop surface 63 limit the movement of the push screw 42, and the friction between the first stop surface 63 and the rotating wheel 41 also restricts the rotation of the rotating wheel 41, thereby locking the rotating wheel 41 and the push screw 42 in the current position.

[0068] Similarly, when the push screw 42 abuts against the first limiting surface 61 and the rotating wheel 41 abuts against the second stop surface 64, the first limiting surface 61 restricts the movement of the push screw 42 in the second direction Y, and the second stop surface 64 restricts the movement of the rotating wheel 41 and the push screw 42 in the first direction X, thereby limiting the movement of the push screw 42 and restricting the rotation of the rotating wheel 41, thus locking the rotating wheel 41 and the push screw 42 in the current position.

[0069] When the push screw 42 abuts against the second limiting surface 62, the rotating wheel 41 abuts against the first stop surface 63, and the clamp head component 1 is locked in one of the fully open state and the clamping state; when the push screw 42 abuts against the first limiting surface 61, the rotating wheel 41 abuts against the second stop surface 64, and the clamp head component 1 is locked in the other of the fully open state and the clamping state.

[0070] By setting the self-locking structure 6, the clamping head component 1 can be locked in the fully open and clamped states, thereby improving the anti-interference capability of the single-handed rotary gripper 100, reducing the occurrence of misoperation, and improving the working reliability of the single-handed rotary gripper 100.

[0071] Optionally, when the push screw 42 abuts against the second limiting surface 62 and the rotating wheel 41 abuts against the first stop surface 63, the pliers head component 1 is in a fully open state; when the push screw 42 abuts against the first limiting surface 61 and the rotating wheel 41 abuts against the second stop surface 64, the pliers head component 1 is in a clamped state. Alternatively, when the feed screw abuts against the second limiting surface 62 and the rotating wheel 41 abuts against the first stop surface 63, the pliers head component 1 is in a clamped state; when the push screw 42 abuts against the first limiting surface 61 and the rotating wheel 41 abuts against the second stop surface 64, the pliers head component 1 is in a fully open state.

[0072] When the push screw 42 moves along the first direction X or the second direction Y without being restricted by the first and second limiting surfaces 61 and 62, the jaw member 1 can move between a fully open state and a clamping state. The jaw member 1 is in an intermediate state between these two states; for example, it can be in an open state with a smaller opening than the fully open state; or, for example, it can be in a slightly open state away from the clamping state. Furthermore, the jaw member 1 can move gradually under the control of the rotating wheel 41. For each revolution of the rotating wheel 41, the push screw 42 moves a fixed distance, and correspondingly, the jaw member 1 moves a fixed dimension. The jaw member 1 can be gradually opened or closed by rotating the rotating wheel 41 one revolution at a time, thus controlling its gradual movement.

[0073] Due to the threaded engagement between the push screw 42 and the rotary wheel 41, the jaw component 2 of the single-handed rotary gripper 100 of this utility model embodiment can achieve step-by-step movement. Furthermore, the single-handed rotary gripper 100 of this utility model embodiment has a self-locking function, which can automatically hold the jaw component 2 in the required state, thereby improving the operational accuracy and working stability of the single-handed rotary gripper 100.

[0074] By setting a first limiting surface 61, a second limiting surface 62, a first abutment surface 63, and a second abutment surface 64 on the handle component 3 to lock the rotary wheel 41 and the push screw 42, the self-locking structure 6 has a simple structure and the handle component 3 is easy to manufacture. Furthermore, it eliminates the need for additional fasteners or other components to lock the rotary wheel 41 and the push screw 42, saving manufacturing costs, reducing the weight of the rotary gripper 100 for single-handed operation, and making it easier to use.

[0075] The locking action of the rotating wheel 41 and the push screw 42 is simple. The rotating wheel 41 is driven to rotate until the push screw 42 abuts against the first limiting surface 61 or the second limiting surface 62, which automatically locks the rotating wheel 41 and the push screw 42. The operator can complete the action with one hand.

[0076] Not only are the locking actions of the rotating wheel 41 and the push screw 42 simple, but the unlocking actions are also relatively simple. When the push screw 42 abuts against the second limiting surface 62, driving the rotating wheel 41 to rotate causes the push screw 42 to move from the second limiting surface 62 towards the first limiting surface 61, thus completing the unlocking process. When the push screw 42 abuts against the first limiting surface 61, the unlocking action is the same. The operator can complete the actions with one hand, making the operation simple.

[0077] The single-handed rotary gripper 100 of this utility model embodiment, through its ingenious structural design, can not only stably lock the gripper head component 1 in the fully open and clamped states, reducing the occurrence of misoperation, but also makes locking and unlocking operations relatively simple, allowing users to complete the actions with one hand, making it convenient to use.

[0078] In some embodiments of this utility model, the rotating wheel 41 can not only rotate relative to the guide rod 31, but also move along the length direction of the guide rod 31, thereby improving the smoothness of the movement of the rotating wheel 41.

[0079] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the guide rod 31 includes a smooth section 31a and a threaded section 31b. The outer circumferential surface of the smooth section 31a is a smooth cylindrical surface, and the outer circumferential surface of the threaded section 31b is provided with a second external thread 312. The threaded section 31b is located at at least one end of the smooth section 31a in the axial direction. The rotating wheel 41 is movable along the length direction of the guide rod 31. The rotating wheel 41 has a first position where the first internal thread 411 is located on the smooth section 31a, and a second position where the first internal thread 411 is threadedly engaged with the second external thread 312.

[0080] The smooth section 31a and the threaded section 31b are arranged sequentially along the length of the guide rod 31, while the push screw 42 moves along the length of the guide rod 31. Therefore, the first limiting surface 61 and the second limiting surface 62 are arranged at intervals along the length of the guide rod 31, and the first stop surface 63 and the second stop surface 64 are also arranged sequentially along the length of the guide rod 31.

[0081] When the rotating wheel 41 rests on the first stop surface 63 and / or the second stop surface 64, the rotating wheel 41 is in the second position; when the rotating wheel 41 is in the first position, the rotating wheel 41 is in clearance fit with the first stop surface 63 and the second stop surface 64.

[0082] When the rotating wheel 41 is in the first position, the first internal thread 411 of the rotating wheel 41 is spaced apart from the outer circumferential surface of the guide rod 31, and the rotating wheel 41 and the first internal thread 411 are threadedly engaged with the first external thread 421 of the push screw 42. At this time, the rotating wheel 41 can move along the length direction of the guide rod 31. The rotating wheel 41 does not stop against the first stop surface 63 and the second stop surface 64. The rotating wheel 41 can 'free-spin' on the guide rod 31. The rotation of the rotating wheel 41 is subject to little resistance. The rotating wheel 41 rotates smoothly and can quickly drive the push screw 42 to move toward the first limiting surface 61 or toward the second limiting surface 62, thereby quickly changing the state of the pliers head component 2.

[0083] When the push screw 42 abuts against the first limiting surface 61, it cannot move further. Continuing to rotate the wheel 41, the wheel 41 moves away from the first limiting surface 61 under the action of the thread until it abuts against the second stop surface 64, locking the wheel 41 and the push screw 42. Similarly, when the push screw 42 abuts against the second limiting surface 62, it cannot move further. Continuing to rotate the wheel 41, the wheel 41 moves away from the second limiting surface 62 until it abuts against the first stop surface 63, locking the wheel 41 and the push screw 42.

[0084] By setting the threaded section 31b, when the rotating wheel 41 is in the second position, the first internal thread 411 of the rotating wheel 41 not only engages with the first external thread 421 of the push screw 42, but the rotating wheel 41 also engages with the second external thread 312 of the guide rod 31. The hand-tightened thread and the guide rod 31 engage with each other to lock, restricting the movement of the rotating wheel 41 relative to the guide rod 31.

[0085] The threaded section 31b is located at at least one end of the smooth section 31a in the axial direction, so that when the rotating wheel 41 is abutting the first stop surface 63 and / or the second stop surface 64, the rotating wheel 41 is also threadedly engaged with the threaded section 31b, further restricting the movement and rotation of the rotating wheel 41 and improving the locking effect on the rotating wheel 41 and the push screw 42.

[0086] Optionally, the threaded section 31b is located at one end of the smooth section 31a near the first stop surface 63, and the rotating wheel 41 engages with the threaded end when it rests on the first stop surface 63; alternatively, the threaded section 31b is located at one end of the smooth section 31a near the second stop surface 64, and the rotating wheel 41 engages with the threaded end when it rests on the second stop surface 64; alternatively, the threaded section 31b consists of two sections, with the threaded end located at one end of the smooth section 31a near the first stop surface 63 and the other end of the smooth section 31a near the second stop surface 64, and the rotating wheel 41 engages with the threaded end when it rests on the first stop surface 63, and also engages with the threaded end when it rests on the second stop surface 64.

[0087] In some other embodiments of this utility model, the rotating wheel 41 is restricted to rotating only relative to the guide rod 31, and the rotating wheel 41 cannot move relative to the guide rod 31, thereby improving the self-locking stability of the single-handed operation of the rotating wheel gripper.

[0088] The rotating wheel 41 is restricted to rotate between the first stop surface 63 and the second stop surface 64. The rotating wheel 41 maintains contact with the first stop surface 63 and the second stop surface 64, and rotates against the frictional force with the first stop surface 63 and the second stop surface 64 when rotating. When the rotating wheel 41 drives the push screw 42 to abut against the first limiting surface 61, the rotating wheel 41 also naturally abuts against the second stop surface 64, which can directly lock the rotating wheel 41 and the push screw 42. Moreover, the rotating wheel 41 not only abuts against the second stop surface 64, but also against the overlapping stop surface. Similarly, when the rotating wheel 41 drives the push screw 42 to abut against the second limiting surface 62, the rotating wheel 41 also naturally abuts against the first stop surface 63 and the second stop surface 64, which can further improve the self-locking stability of the single-handed operation of the rotating wheel gripper.

[0089] Furthermore, since the rotating wheel 41 maintains contact with the first stop surface 63 and the second stop surface 64, when the push screw 42 is positioned between the first limiting surface 61 and the second limiting surface 62, the cooperation between the rotating wheel 41 and the first stop surface 63 and the second stop surface 64, as well as the threaded cooperation between the rotating wheel 41 and the push screw 42, can stably restrict the movement of the push screw 42, thereby improving the self-locking stability of the single-handed rotating wheel gripper 100 of this utility model embodiment.

[0090] In some embodiments of this utility model, the self-locking structure 6 further includes a locking ball 65 and a slot 66 that engage with each other. One of the locking ball 65 and the slot 66 is located on the rotating wheel 41, and the other of the locking ball 65 and the slot 66 is located on the first stop surface 63 and / or the second stop surface 64 of the handle component 3.

[0091] By setting a locking ball 65 and a slot 66 that engage in a snap-fit ​​configuration, the stability of the engagement between the rotating wheel 41 and the first stop surface 63 and / or the second stop surface 64 can be improved. Compared to the abutting engagement between the rotating wheel 41 and the first stop surface 63 and / or the second stop surface 64, the snap-fit ​​engagement of the locking ball 65 and the slot 66 enhances the stability of the engagement between the rotating wheel 41 and the first stop surface 63 and / or the second stop surface 64, further improving the locking reliability of the rotating wheel 41 and the push screw 42. Furthermore, compared to using a fixing component to connect and lock the rotating wheel to the first stop surface and / or the second stop surface, the snap-fit ​​engagement of the locking ball 65 and the slot 66 makes it easier to lock or unlock the rotating wheel 41, making operation convenient and without changing the driving method of the rotating wheel 41; the operation can still be completed by rotating the rotating wheel 41.

[0092] In some embodiments of this utility model, the rotating wheel 41 can not only rotate relative to the guide rod 31, but also move along the length of the guide rod 31. The self-locking structure 6 also includes a locking ball 65 and a locking groove 66 that engage in a locking mechanism. When the rotating wheel 41 moves along the guide rod 31 and separates from the first stop surface 63 and the second stop surface 64, the locking ball 65 and the locking groove 66 can be separated without hindering the rotation of the rotating wheel 41. When the rotating wheel 41 abuts against the first stop surface 63 or the second stop surface 64, the engagement of the locking ball 65 and the locking groove 66 can improve the reliability of the engagement between the rotating wheel 41 and the first stop surface 63 or the second stop surface 64.

[0093] In some embodiments of this utility model, a locking ball 65 is provided on the rotating wheel 41, and a slot 66 is provided on the first stop surface 63 and / or the second stop surface 64.

[0094] In other embodiments of this utility model, such as Figure 5 and Figure 7 As shown, a slot 66 is provided on the rotating wheel 41, and a locking ball 65 is provided on the first stop surface 63 and / or the second stop surface 64. Compared with providing a locking ball 65 on the rotating wheel 41, providing a slot 66 on the rotating wheel 41 can reduce the weight of the rotating wheel 41 and make it easier for the user to drive the rotating wheel 41 to rotate.

[0095] Optionally, the rotating wheel 41 has a slot 66 only on the end face facing the first stop surface 63, and the first stop surface 63 has a locking bead 65 for engaging in the slot 66.

[0096] Alternatively, such as Figure 5 and Figure 7 As shown, the rotating wheel 41 has a slot 66 only on the end face facing the second stop surface 64, and the second stop surface 64 has a locking bead 65 for engaging in the slot 66.

[0097] Alternatively, a slot 66 is provided on the end face of the rotating wheel 41 facing the first stop surface 63, and a slot 66 is also provided on the end face of the rotating wheel 41 facing the second stop surface 64. Both the first stop surface 63 and the second stop surface 64 are provided with locking beads 65 for engaging in the slot 66.

[0098] In some embodiments of this utility model, such as Figure 7 As shown, the rotating wheel 41 has multiple slots 66, which are spaced apart along the circumference of the rotating wheel 41. Figure 3 As shown, there are two locking beads 65, which are arranged at intervals along the radial direction of the rotating wheel 41. By setting multiple slots 66, the slots 66 and the locking beads 65 can be engaged and matched at multiple rotation angles of the rotating wheel 41.

[0099] In some embodiments of this utility model, such as Figure 2As shown, the rotating wheel 41 has a slot 66, and a locking ball 65 is provided on the first stop surface 63 and / or the second stop surface 64. The handle component 3 also has a mounting channel 331 corresponding to the locking ball 65. The end of the mounting channel 331 facing the rotating wheel 41 has an outlet. The locking ball 65 is movably disposed in the mounting channel 331 and is at least partially exposed from the outlet. The self-locking structure 6 also includes an elastic element 67, which is installed in the mounting channel 331. The elastic element 67 is connected to the locking mechanism and stops the locking ball 65 towards the outlet.

[0100] The elastic element 67 can produce elastic deformation. When the rotating wheel 41 contacts the locking ball 65, the locking ball 65 is forced to move into the interior of the mounting hole 331, the elastic element 67 is compressed, and the elastic element 67 has a tendency to return to its original shape. The elastic element 67 pushes the locking ball 65 toward the outlet.

[0101] By incorporating the elastic element 67, when the rotating wheel 41 rotates near the first stop surface 63 and / or the second stop surface 64, the rotating wheel 41 can press the locking ball 65 into the mounting hole 331, reducing the contact area between the locking ball 65 and the rotating wheel 41 and improving the smoothness of the rotation of the rotating wheel 41. When the rotating wheel 41 abuts against the first stop surface 63 and / or the second stop surface 64, the elastic element 67 stably pushes the locking ball 65 into the slot 66, improving the locking stability of the rotating wheel 41.

[0102] In some embodiments of this utility model, such as Figure 6 As shown, the guide groove 311 is radially through the guide rod 31, and the push screw 42 has first external threads 421 protruding from the guide groove 311 on both sides. The push screw 42 engages with the first internal thread 411 of the rotating wheel 41 through the two portions of the first external threads 421 in the radial direction of the guide rod 31, resulting in uniform force distribution on the push screw 42 and improving its movement stability.

[0103] In some embodiments of this utility model, such as Figures 2-4 As shown, the handle component 3 includes a boss 32, which is connected to one end of the guide rod 31 near the operating end 1a. The first limiting surface 61 and the first stop surface 63 are integral surfaces and are both formed on the boss 32.

[0104] Both the first limiting surface 61 and the first abutting surface 63 are formed on the boss 32 and are integral surfaces. The arrangement of the first limiting surface 61 and the first abutting surface 63 can be achieved by setting a single part of the boss 32, which simplifies the structure of the single-handed rotary gripper of this utility model embodiment, helps to reduce the weight of the single-handed rotary gripper, and makes it easier to use.

[0105] The cross-sectional area of ​​the boss 32 is larger than the cross-sectional area of ​​the guide groove 311. The middle position of the end face of the boss 32 facing the guide groove is formed as a first limiting surface 61 for the push screw 42 to stop. The outer periphery position of the end face of the boss 32 facing the guide groove is formed as a first stopping surface 63 for the rotating wheel 41 to stop.

[0106] In some embodiments of this utility model, the boss 32 and the guide rod 31 are integrally formed, which can improve the structural stability of the boss 32 and the guide rod 31. A through hole 321 is formed in the boss 32 for the guide wire 5 to pass through. The through hole 321 communicates with the guide groove 311. The guide wire 5 extends into the guide groove 311 through the through hole 321 to connect with the push screw 42.

[0107] In some embodiments of this utility model, one end of the guide rod 31 is connected to the operating end 1a of the clamp rod 1, and a second limiting surface 62 is provided in the guide groove 311. The second limiting surface 62 is farther away from the operating end 1a than the first limiting surface 61. The handle component 3 also includes a grip rod 33, which is connected to the other end of the guide rod 31. The grip rod 33 is farther away from the operating end 1a than the guide rod 31, and a second stop surface 64 is formed on the grip rod 33. The second stop surface 64 is farther away from the operating end 1a than the first stop surface 63.

[0108] The grip lever 33 is longer than the guide lever 31, and serves as the handheld part for the operator to operate the rotary gripper with one hand. By forming a second stop surface 64 on the grip lever 33, the arrangement of the second stop surface 64 is completed using the structure of the grip lever 33 itself, simplifying the structure, reducing the weight of the rotary gripper for one-handed operation, and making it easier to use.

[0109] In some embodiments of this utility model, such as Figure 6 As shown, a fixing block 313 is fixedly installed in the guide groove 311, and a second limiting surface 62 is formed on the fixing block 313. The push screw 42 can stop against the fixing block 313.

[0110] In some embodiments of this utility model, the guide rod 31 and the grip rod 33 are threadedly connected. The guide rod 31 has a threaded section 31b, a portion of which has a second external thread 312 that engages with the grip rod 33, and another portion of which has a second external thread 312 that engages with the first internal thread 411 of the rotating wheel 41. The threaded section 31b of the guide rod 31 serves a dual purpose, allowing for a single machining operation to satisfy the engagement with both the rotating wheel 41 and the grip rod 33.

[0111] In some embodiments of this utility model, the guide rod 31 and the grip rod 33 are bonded together.

[0112] In some embodiments of this utility model, the second limiting surface 62 is farther away from the operating end 1a than the first limiting surface 61, and the second abutting surface 64 is farther away from the operating end 1a than the first abutting surface 63. Therefore, when the push screw 42 abuts against the second limiting surface 62, the guide wire 5 is pulled from the surgical end 1b to the operating end 1a; when the push screw 42 abuts against the first limiting surface 61, the guide wire 5 is pushed from the operating end 1a to the surgical end 1b.

[0113] When the push screw 42 abuts against the second limiting surface 62 and the rotating wheel 41 abuts against the first stop surface 63, the clamp head component 1 is in a clamped state; when the push screw 42 abuts against the first limiting surface 61 and the push screw 42 abuts against the first limiting surface 61, the clamp head component 1 is in a fully open state.

[0114] This arrangement facilitates the clamping of the forceps head component 1. It is worth noting that in some embodiments of this invention, the forceps bar 1 and guide wire 5 of the single-handed rotary forceps 100 are relatively long and flexible, allowing for flexible deformation to transport the forceps head component 2 to the patient's site along the delivery sheath. When the forceps bar 1 and guide wire 5 bend, the guide wire 5 moves relative to the surgical end 1b of the forceps bar 1 towards the operating end 1a. This movement of the guide wire 5 pulls and locks the forceps head component 2 into a clamped state, ensuring the reliability of the clamping action of the single-handed rotary forceps 100 in this invention embodiment.

[0115] In some embodiments of this utility model, the pliers head component 1 includes two pliers blades, which are rotatably mounted on the pliers bar 1, and the pliers blades are provided with anti-dislodgement teeth.

[0116] The two jaws can rotate relative to each other to achieve clamping and opening. By setting anti-disengagement teeth on the jaws, the reliability of the clamping action of the jaw head component 2 can be improved.

[0117] In some embodiments of this utility model, such as Figure 1 As shown, the single-handed rotary gripper 100 also includes a connector 7 that connects the gripper bar 1 and the handle component 3 so that the guide wire 5 can move relative to the gripper bar 1.

[0118] The following description, with reference to the accompanying drawings, illustrates the use of a single-handed rotary gripper 100 in a specific embodiment of the present invention.

[0119] In the initial state, the rotor 41 is in the first position.

[0120] When the clamping head component 1 needs to be clamped, rotating the wheel 41 drives the push screw 42 to move along the first direction X until the push screw 42 abuts against the fixing member 313. At this time, the wheel 41 can 'free-spin' on the guide rod 31, and the wheel 41 rotates smoothly. Continuing to rotate the wheel 41, the wheel 41 moves towards the second direction Y until the wheel 41 abuts against the boss 32. The wheel 41 and the push screw 42 are restricted from moving in the first direction and the second direction Y, and the threaded connection between the wheel 41 and the push screw 42 is locked.

[0121] When the pliers head assembly 1 needs to be fully open, rotating the wheel 41 drives the push screw 42 to move along the second direction Y until the push screw 42 abuts against the boss 32. At this time, the wheel 41 can 'free-spin' on the guide rod 31, and the wheel 41 rotates smoothly. Continuing to rotate the wheel 41, the wheel 41 moves towards the first direction X, and at the same time, the wheel 41 is threadedly connected to the second external thread 312, and the wheel 41 and the guide rod 31 are threadedly connected. Continuing to rotate the wheel 41 until the wheel 41 abuts against the grip 33, at the same time, the locking ball 65 on the grip 33 engages in the slot 66 of the wheel 41, the wheel 41 and the push screw 42 are restricted from moving in the first direction and the second direction Y, and the threaded connection between the wheel 41 and the push screw 42 is locked.

[0122] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0123] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0124] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0125] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0126] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0127] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A single-handedly operable rotary grabber characterized by, The utility model relates to a kind of surgical forceps, comprising: forceps rod, the operating end, surgical end are respectively at both ends of the forceps rod; forceps head component, the forceps head component is located at the surgical end, and is movably arranged on the forceps rod between fully open state and clamping state; handle component, the handle component is connected at the operating end of the forceps rod; drive component, the drive component includes rotating wheel and push screw, the push screw is movably arranged on the handle component, the rotating wheel is rotatably arranged on the handle component, and the rotating wheel is screwed with the push screw, and the rotating wheel rotates and drives the push screw to move;Single-handedly can hold handle component and rotate the rotating wheel with the same hand; guide wire, the guide wire is arranged in the forceps rod, and the both ends of the guide wire are connected with the push screw and the forceps head component respectively to drive the forceps head component to move when the rotating wheel rotates; self-locking structure, the self-locking structure is used to limit the rotation of the rotating wheel when cooperating with the rotating wheel, and / or limit the movement of the push screw when cooperating with the push screw.

2. The single-handed operation turnbuckle gripper according to claim 1, wherein The handle component includes guide rod, the guide rod is provided with guide groove extending along the length direction of the guide rod, the push screw is slidably fitted in the guide groove, the push screw has first external thread protruding from the guide groove, and the rotating wheel is sleeved outside the guide rod, and the rotating wheel has first internal thread matched with the first external thread.

3. The single-handed operation turnbuckle gripper according to claim 2, wherein The self-locking structure includes first limiting surface and second limiting surface arranged on the handle component, and the first limiting surface and the second limiting surface are located at the both ends of the first external thread of the push screw in axial direction; The self-locking structure further includes first stop surface and second stop surface arranged on the handle component, and the first stop surface and the second stop surface are located at the both ends of the first internal thread of the rotating wheel in axial direction, the first stop surface is arranged opposite to the second limiting surface, and the second stop surface is arranged opposite to the first limiting surface; When the push screw abuts against the second limiting surface and the rotating wheel abuts against the first stop surface, the forceps head component is locked in one of the fully open state and the clamping state;When the push screw abuts against the first limiting surface and the rotating wheel abuts against the second stop surface, the forceps head component is locked in the other of the fully open state and the clamping state; When the push screw moves between the first limiting surface and the second limiting surface, the forceps head component moves between the fully open state and the clamping state, and the forceps head component moves gradually.

4. The single-handed operation turnbuckle gripper according to claim 3, wherein The guide rod includes: smooth section, the outer peripheral surface of the smooth section is smooth cylindrical surface; threaded section, the outer peripheral surface of the threaded section is provided with second external thread, and the threaded section is located at at least one end of the smooth section in axial direction; The rotating wheel is movable along the length direction of the guide rod, the rotating wheel has first position of the first internal thread located on the smooth section, and the rotating wheel also has second position of the first internal thread threadedly matched with the second external thread. The rotating wheel is located at the second position when the rotating wheel abuts against the first stop surface and / or the second stop surface; the rotating wheel is located at the first position when the rotating wheel is in clearance fit with the first stop surface and the second stop surface.

5. The single-handed operation turnbuckle gripper according to claim 3 or 4, characterized in that The self-locking structure further comprises a locking bead and a clamping groove in clamping fit, one of the locking bead and the clamping groove is arranged on the rotating wheel, and the other of the locking bead and the clamping groove is arranged on the first stop surface and / or the second stop surface of the handle component.

6. The single-handed operation turnbuckle gripper according to claim 5, wherein An end surface of the rotating wheel facing the first stop surface is provided with the clamping groove, and the first stop surface is provided with the locking bead clamped into the clamping groove. An end surface of the rotating wheel facing the second stop surface is provided with the clamping groove, and the second stop surface is provided with the locking bead clamped into the clamping groove.

7. The single-handed operation turnbuckle gripper according to claim 6, wherein The handle component is further provided with a mounting channel corresponding to the locking bead, an end of the mounting channel facing the rotating wheel is provided with an outlet, and the locking bead is movably arranged in the mounting channel and at least partially exposed from the outlet. The self-locking structure further comprises an elastic member mounted in the mounting channel, the elastic member is connected with the locking bead and abuts against the locking bead towards the outlet.

8. The single-hand operated turnbuckle grip of claim 2, wherein, The guide groove is arranged through the guide rod in the radial direction, and the first external thread of the guide groove is exposed on both sides of the push screw.

9. The single-handed operation turnbuckle gripper according to claim 3 or 4, characterized in that, The handle component comprises a boss connected to one end of the guide rod close to the operation end. The first limiting surface and the first stop surface are integral surfaces and are both formed on the boss.

10. The single-handed operation turnbuckle gripper according to claim 9, wherein The boss and the guide rod are an integral molded part, and the boss is formed with a through hole for the guide wire to pass through, and the through hole is in communication with the guide groove.

11. The single-handed operation turnbuckle gripper according to claim 3 or 4, characterized in that, One end of the guide rod is connected to the operation end of the clamp rod, the second limiting surface is arranged in the guide groove, and the second limiting surface is farther away from the operation end than the first limiting surface. The handle component further comprises a grip rod connected to the other end of the guide rod, and the second stop surface is formed on the grip rod.

12. The single-handed operation turnbuckle gripper according to claim 11, wherein, When the push screw abuts against the second limiting surface and the rotating wheel abuts against the first stop surface, the clamp head component is in the clamping state. When the push screw abuts against the first limiting surface and the push screw abuts against the first limiting surface, the clamp head component is in the fully open state.

13. The single-hand operated turnbuckle grip of claim 1, wherein, The clamp head component comprises two clamp leaves rotatably arranged on the clamp rod, and the clamp leaves are provided with anti-disengagement teeth.

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