Handle for surgical clip applier and surgical clip applier

Abstract

The application discloses a handle and surgical forceps, and relates to the field of medical equipment, which comprises a main body assembly and a holding assembly located below the main body assembly, a channel is formed in the main body assembly, the channel is used for accommodating the driving end of a forceps head assembly, the handle further comprises a swing driving assembly, the swing driving assembly comprises a transmission unit and a swing rod connected with the transmission unit, the transmission unit is located in the channel and is used for transmission connection with the driving end of the forceps head assembly, the swing rod penetrates through the main body assembly from the channel, and the swing rod and the holding assembly are located on the opposite sides of the proximal end of the main body assembly, respectively; the swing rod is suitable for switching the transmission unit between an initial position and a swing position under the action of an external force, and the swing driving assembly is limited and matched with the main body assembly in the initial position and the swing position. The application is convenient to operate and can effectively improve the operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to the handle of a surgical clamp and the surgical clamp itself. Background Technology

[0002] During laparoscopic surgery, surgical clamps, such as clamping clamps, are commonly used to clamp and close blood vessels or tissues. This ligation method is simple, quick, and effective.

[0003] The surgical clamps in the relevant technologies lack sufficient flexibility in adjusting the clamp head, making it difficult to efficiently complete ligation at certain specific locations. In addition, some surgical clamps, while having sufficient flexibility, are cumbersome to operate in actual use, thus increasing the complexity of using surgical clamps during surgery and reducing surgical efficiency.

[0004] Therefore, it is necessary to design a surgical clamp that is flexible enough and easy to operate. Summary of the Invention

[0005] This invention aims to address, to a certain extent, one of the technical problems in related technologies. To this end, this invention provides a handle for a surgical clamp and the surgical clamp itself, which facilitates operation and can effectively improve surgical efficiency.

[0006] To achieve the above objectives, a first aspect of the present invention discloses a handle for a surgical clamp, comprising a main body assembly and a gripping assembly located below the main body assembly. A channel is formed in the main body assembly for receiving a drive end of a clamp head assembly. The handle further includes a yaw drive assembly, which includes a transmission unit and a swing arm connected to the transmission unit. The transmission unit is located within the channel and is used for transmission connection with the drive end of the clamp head assembly. The swing arm extends out of the main body assembly from the channel, and the swing arm and the gripping assembly are located on opposite sides of the proximal end of the main body assembly.

[0007] The swing arm is adapted to drive the transmission unit to switch between an initial position and a swing position under the action of an external force. In both the initial position and the swing position, the swing drive component is in a limiting cooperation with the main body component.

[0008] In this technical solution, when the user's hand is in use, it can grip the holding component below the main body component. The swing arm of the swing drive component is located on the top side of the main body component. In this way, the user's thumb, which is located on the top side, can easily and conveniently move the swing arm in the normal grip state, thereby allowing one-handed operation to control the swing action of the actuator end of the pliers head component. Furthermore, in both the initial position and the swing position, since the swing drive component is in a limiting cooperation with the main body component, the swing drive component is kept in the initial position or the swing position, making operation more convenient.

[0009] Furthermore, the transmission unit includes a sway connector and a sway elastic member sleeved on the outside of the sway connector. The sway connector is slidably disposed in the channel along the axial direction of the channel. The front end of the sway connector is fixedly connected to the driving end of the pliers assembly. One end of the sway elastic member is connected to the sway connector, and the other end is connected to the inner wall of the channel. The sway elastic member causes the proximal end of the sway connector and the distal end of the sway bar to abut against each other.

[0010] Furthermore, a protruding second guide is formed on the side wall of the swing arm, and a second sliding groove corresponding to the second guide is formed on the side wall of the main body assembly. The length direction of the second sliding groove intersects the axial direction of the channel, and the second guide is slidably inserted into the second sliding groove.

[0011] Furthermore, a positioning groove extends laterally on the side wall of the near end of the second slide, and in the tilted position, the second guide engages with the positioning groove;

[0012] Alternatively, at the skew position, the second guide engages with the positioning groove in response to the skew elastic member.

[0013] Furthermore, the outer wall of the second guide member is provided with a locking notch extending circumferentially along the second guide member. In the deflection position, the locking notch engages with the positioning groove. During the switching process between the initial position and the deflection position of the swing rod, the proximal end of the deflection connector and the distal end of the swing rod remain in contact.

[0014] Furthermore, the proximal end of the second groove along its length is inclined relative to its distal end toward the proximal end of the main body assembly.

[0015] Furthermore, the inclination angle of the second chute is between 45° and 90°;

[0016] And / or, during the process of the yaw drive assembly switching from the initial position to the yaw position, the yaw rod moves from the proximal high position to the distal low position.

[0017] Furthermore, a protruding first guide is formed on the side wall of the portion of the swing arm placed inside the main body assembly. The first guide and the second guide are spaced apart. A first groove corresponding to the first guide is formed on the side wall of the main body assembly. The length direction of the first groove is consistent with the axial direction of the channel. The first guide is slidably inserted into the first groove.

[0018] Furthermore, the first guide and the second guide are respectively formed on opposite sides of the swing arm, and the opposite side walls of the swing arm are respectively in contact with the opposite side walls of the main body assembly. The first groove and the second groove respectively penetrate the two side walls of the main body assembly in contact with the swing arm.

[0019] And / or, when the yaw drive assembly is in the initial position, the first guide abuts against the proximal end of the first slide and the second guide abuts against the proximal end of the second slide; when the yaw drive assembly is in the yaw position, the first guide abuts against the distal end of the first slide and the second guide abuts against the distal end of the second slide.

[0020] Furthermore, the handle also includes an opening and closing drive assembly, which includes an opening and closing connector and an opening and closing elastic member. The opening and closing connector is slidably disposed in the channel and is used to be fixedly connected to the opening and closing drive rod of the drive end of the pliers assembly. The opening and closing connector is connected to the inner wall of the channel, and the opening and closing elastic member is used to keep the actuating end of the pliers assembly in the open state. At least part of the opening and closing connector is disposed in the oscillating connector.

[0021] Furthermore, the opening and closing elastic element is sleeved on the outside of the swing connector, the swing connector is provided with a through groove, and one end of the opening and closing elastic element is fixedly connected to the opening and closing connector through the through groove.

[0022] And / or, the handle further includes a rotary drive assembly, the rotary drive assembly including a knob, a rotating cylinder sleeved within the knob, a second end cap located at the distal end, and a rotary limiting member located at the proximal end. The rotating cylinder is rotatably disposed at the distal end of the main body assembly via the second end cap and the rotary limiting member. The central cavity of the rotating cylinder communicates with the channel. The opening and closing elastic member and at least a portion of the opening and closing connecting member are disposed within the central cavity of the rotating cylinder. A portion of the opening and closing connecting member protrudes from the through groove beyond the swing connecting member. One end of the opening and closing elastic member abuts against the second end cap, and the other end abuts against the portion of the opening and closing connecting member protruding beyond the swing connecting member. The distal end of the swing elastic member abuts against the rotary limiting member.

[0023] Furthermore, the gripping assembly includes a fixed handle fixedly connected to the main body assembly and a movable handle pivotally connected to the main body assembly, one end of the movable handle being connected to the proximal end of the opening and closing connector; the swing arm is provided with a through hole, and the connection between the movable handle and the opening and closing connector is located at the through hole;

[0024] And / or, the gripping assembly includes a fixed handle fixedly connected to the main body assembly and a movable handle pivotally connected to the main body assembly, the main body assembly having a limiting portion for limiting engagement with the movable handle.

[0025] A second aspect of the present invention discloses a surgical clamp, comprising a clamp head assembly, a clamp head drive assembly, and a handle as described in the first aspect, which are connected in sequence. The clamp head drive assembly includes a yaw drive tube, which is placed in the channel and connected to the distal end of the swing arm. When the proximal end of the swing arm is turned by an external force, the yaw drive tube is driven to slide along the axial direction of the channel, and the actuator of the clamp head assembly is driven to switch between a yaw position and an initial position.

[0026] The reasoning process for the beneficial effects of the surgical clamps provided by this invention is similar to that of the aforementioned handles, and will not be repeated here.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but this is not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 This is a side cross-sectional view (initial position) of a surgical clamp according to one embodiment of the present invention.

[0030] Figure 2 This is a side view (initial position) of a surgical clamp according to one embodiment of the present invention;

[0031] Figure 3 for Figure 2 Enlarged view of a portion of the image;

[0032] Figure 4 This is a structural diagram of the surgical clamp according to one embodiment of the present invention;

[0033] Figure 5 This is a side cross-sectional view (slant position) of a surgical clamp according to one embodiment of the present invention;

[0034] Figure 6 This is a side view (slant position) of a surgical clamp according to one embodiment of the present invention;

[0035] Figure 7 for Figure 6 Enlarged view of a portion of the image;

[0036] Figure 8 This is a perspective view of a surgical clamp according to one embodiment of the present invention;

[0037] Figure 9 This is a diagram showing the internal structure of the yaw drive component according to one embodiment of the present invention;

[0038] Figure 10 This is a structural diagram of the opening and closing drive component according to one embodiment of the present invention.

[0039] in,

[0040] 11. Grip assembly; 111. Fixed handle; 112. Movable handle; 1121. Opening / closing operation part; 1122. Pivoting connection part; 1123. Opening / closing drive part; 12. Main body assembly; 121. Mounting cavity; 122. First slide groove; 123. Second slide groove; 1231. Guide protrusion; 124. Positioning groove; 125. Main body part; 126. Cylinder part; 13. Channel; 14. First end cap; 15. Rotation limiting component; 151. Limiting cylinder; 152. Limiting baffle; 153. Slot;

[0041] 20. Yaw drive assembly; 21. Yaw rod; 211. First guide member; 212. Second guide member; 2121. Engaging notch; 213. Through hole; 22. Yaw connector; 221. Yaw connector seat; 222. Yaw connector rod; 223. Coupling sleeve; 224. Through groove; 23. Yaw elastic element;

[0042] 30. Opening / closing drive assembly; 32. Opening / closing drive rod connector; 321. Opening / closing slide; 33. Opening / closing elastic element; 34. Second end cap;

[0043] 40. Rotary drive assembly; 41. Knob; 42. Rotary drum; 43. Rinse drum; 44. Rinse channel; 45. Flexible protrusion;

[0044] 51. Outer tube; 52. Yaw drive tube; 53. Engagement drive rod;

[0045] 60. Pliers head assembly. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 are intended to explain the present invention and should not be construed as limiting the invention.

[0047] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this invention. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0048] See appendix Figures 1 to 10 The first aspect of the present invention discloses a handle for a surgical clamp, comprising a main body assembly 12 and a gripping assembly 11 located below the main body assembly 12, wherein a channel 13 is formed in the main body assembly 12 for receiving a drive end of a clamp head assembly 60.

[0049] The handle also includes a yaw drive assembly 20, which includes a transmission unit and a swing arm 21 connected to the transmission unit. The transmission unit is located in the channel 13 and is used for transmission connection with the drive end of the pliers assembly 60. The swing arm 21 extends out of the main body assembly 12 from the channel 13, and the swing arm 21 and the grip assembly 11 are located on opposite sides of the proximal end of the main body assembly 12, respectively.

[0050] The swing arm 21 is adapted to drive the transmission unit to switch between an initial position and a swing position under the action of an external force. In both the initial position and the swing position, the swing drive component 20 is in a limiting cooperation with the main body component 12.

[0051] It should be noted that the switching between the initial position and the yaw position of the transmission unit mentioned in this embodiment does not mean that the transmission unit will yaw. Specifically, in the initial position, the yaw drive component 20 keeps the actuating end of the clamping head component 60 in a position facing the axis of the channel 13, see Appendix. Figure 1 ;

[0052] During the transition from the initial position to the sway position, the drive unit, driven by the swing arm 21, drives the drive end of the jaw assembly 60, causing the execution end of the jaw assembly 60 to deviate from the axial direction of the channel 13. (See attached diagram) Figure 5 .

[0053] In this embodiment, the handle includes a main body component 12. The main body component 12 serves as the base of the entire handle. It can be used to install various drive components (such as the oscillation drive component 20, the opening and closing drive component 30, and the rotation drive component 40), and also to install the pliers head assembly 60. (See attached diagram.) Figure 1 , 5 .

[0054] In this embodiment, the front side of the main body component 12 is provided with a channel 13. The channel 13 is used to install the drive end of the pliers head component 60, so as to realize the mutual association between the pliers head component 60 and the handle. When setting, a cylinder can be provided on the front side of the main body component 12, and the central cavity of the cylinder forms the channel 13.

[0055] The handle in this embodiment includes a sway drive component 20, which is used to drive the sway of the execution end of the forceps assembly 60 (generally opposite to the drive end of the forceps assembly 60) so that the execution end of the forceps assembly 60 can flexibly sway to the corresponding angle. In some complex surgical operations, this makes it easier for the execution end of the forceps assembly 60 to reach some hidden or complex positions, thereby improving surgical efficiency.

[0056] In this embodiment, the yaw drive component 20 is disposed on the main body component 12. Since the swing arm 21 and the grip component 11 are located on opposite sides of the proximal end of the main body component 12, when the user normally grips the grip component 11, the user's thumb is naturally in a position opposite to the main body component 12. In this embodiment, the swing arm 21 extends out of the main body component 12, making it easier for the thumb to approach the swing arm 21. That is, during operation, the swing arm 21 can be directly controlled by the thumb of the gripping hand. In both the initial position and the yaw position, since the yaw drive component 20 is in a limiting cooperation with the main body component 12, the yaw drive component is kept in the initial position or the yaw position. The operation is very convenient, requiring only thumb operation during the switching process.

[0057] In this embodiment, there is no specific limitation on how the swing arm 21 of the yaw drive assembly 20 transmits the driving force to the yaw drive tube 52. In the configuration, the transmission unit can be directly connected to the yaw drive tube 52.

[0058] In this embodiment, the handle, through the reasonable design of the position of the lever 21 and the lever operation mode, allows the operator to hold and operate the swinging motion of the actuator end of the forceps assembly 60 with one hand, making the operation more convenient. Moreover, the swinging motion of the actuator end of the forceps assembly 60 also increases the flexibility of the forceps assembly 60, which can improve surgical efficiency.

[0059] As one embodiment of the present invention, see Appendix Figure 1 The main body component 12 includes a main body part 125 and a cylindrical part 126. The cylindrical part 126 is disposed on the front side of the main body part 125. The central cavity of the cylindrical part 126 is formed as the channel 13. An installation cavity 121 is formed in the main body part 125. The installation cavity 121 and the channel 13 are interconnected.

[0060] The transmission unit includes a swing connector 22 and a swing elastic member 23 sleeved on the outside of the swing connector 22. The swing connector 22 is slidably disposed in the channel 13 along the axial direction of the channel 13. The front end of the swing connector 22 is used to be fixedly connected to the driving end of the pliers assembly 60. One end of the swing elastic member 23 is connected to the swing connector 22, and the other end is connected to the inner wall of the channel 13. The swing elastic member 23 causes the proximal end of the swing connector 22 to abut against the distal end of the swing rod 21.

[0061] In this embodiment, the distal end of the swing arm 21 is located inside the mounting cavity 121 of the main body component 12, while the proximal end of the swing arm 21 is exposed outside the main body component 12, which is beneficial for thumb operation. In this embodiment, the swing arm 21 transmits the eccentric swing force to the execution end of the pliers head component 60 through the eccentric connector 22.

[0062] This embodiment does not specifically limit the structure of the skew connector 22. When setting it, the skew connector 22 can be a single integral component or it can include multiple components, as shown in the attached figure. Figure 9 As shown, the yaw connector 22 includes a yaw connector seat 221, a yaw connector rod 222, and a coupling sleeve 223. The coupling sleeve 223 is slidably installed in the channel 13. The yaw connector rod 222 and the yaw connector seat 221 are connected as one unit through the coupling sleeve 223. The yaw connector rod 222 is fixedly connected to the yaw drive tube 52. The yaw elastic element 23 is provided between the distal end of the coupling sleeve 223 and the inner wall of the channel 13. The yaw elastic element 23 is pre-pressed during installation, so that the yaw elastic element 23 always maintains pressure on the yaw connector 22. When the yaw connector 22 is not subjected to external force, the yaw elastic element 23 presses the yaw connector 22 to the nearest position, so that the yaw drive assembly 20 and the main body assembly 12 maintain a limiting fit. (See attached diagram) Figure 1 As shown, the execution end of the clamping head assembly 60 is in the initial state at this time.

[0063] When the swing arm 21 is moved, the far end of the swing arm 21 will push the yaw connector 22 to move to the far end, thereby driving the linear movement of the yaw drive tube 52. Moreover, during the sliding process of the yaw connector 22, the yaw elastic element 23 always acts as a resistance to the yaw connector 22. That is, during the process of the user moving the swing arm 21, there is always elastic damping, which makes the operation feel better.

[0064] As one embodiment of the present invention, see Appendix Figure 2 , 9A protruding second guide member 212 is formed on the side wall of the swing rod 21, and a second slide groove 123 corresponding to the second guide member 212 is formed on the side wall of the main body assembly 12. The length direction of the second slide groove 123 intersects the axial direction of the channel 13, and the second guide member 212 is slidably inserted into the second slide groove 123.

[0065] In this embodiment, the swing arm 21 is movably connected to the second guide member 212 and the second slide groove 123 on the main body component 12. The second slide groove 123 is used to guide and limit the movement of the swing arm 21, so that the movement of the swing arm 21 on the main body component 12 is more stable.

[0066] In this embodiment, the length direction of the second slide groove 123 intersects the axial direction of the channel 13. Thus, when the second guide member 212 of the swing rod 21 slides along the second slide groove 123, one end of the swing rod 21 will move along the axial direction of the channel 13, thereby driving the transmission unit to slide along the axial direction of the channel 13.

[0067] In this embodiment, the specific configuration of the second slide groove 123 is not specifically limited, as long as the swing rod 21 can drive the transmission unit to switch between the initial position and the swing position when it moves along the second slide groove 123.

[0068] As one embodiment of the present invention, see Appendix Figure 7 A positioning groove 124 extends laterally on the side wall at the far end of the second slide groove 123. In the tilted position, the second guide member 212 engages with the positioning groove 124; or, in the tilted position, the second guide member 212 engages with the positioning groove 124 under the action of the tilting elastic member 23.

[0069] In this embodiment, the second slide groove 123 has a positioning groove 124. When the second guide member 212 moves into the positioning groove 124, the transmission unit is in a swing position. The second guide member 212 and the positioning groove 124 engage with each other, thereby fixing the transmission unit and the swing rod 21 in the swing position. That is, the execution end of the forceps assembly can be kept in the swing position. By setting the positioning groove 124, during surgical operations, the operator can avoid having to maintain the operating posture to maintain the swing state of the execution end of the forceps assembly, which is more labor-saving.

[0070] This embodiment does not specifically limit the location, quantity, or structural form of the positioning groove 124. When setting it, the positioning groove 124 can be set to different cross-sectional shapes according to actual needs, as long as it can limit the position of the swing rod 21 after the second guide member 212 reaches the corresponding position.

[0071] When there are multiple positioning slots 124 in this embodiment, the multiple positioning slots 124 can be spaced apart along the length direction of the second slide groove 123. The multiple positioning slots 124 correspond to different swing angles of the execution end of the pliers assembly 60, so that the execution end of the pliers assembly 60 can be kept at different swing angles, thereby realizing the adjustment of the multi-level swing angle of the execution end of the pliers assembly 60.

[0072] As one embodiment of the present invention, the outer side wall of the second guide member 212 is provided with a locking notch 2121 extending circumferentially along the second guide member 212. In the deflection position, the locking notch 2121 engages with the positioning groove 124. During the switching process between the initial position and the deflection position of the swing rod 21, the proximal end of the deflection connector 22 and the distal end of the swing rod 21 remain in contact.

[0073] In this embodiment, the second guide member 212 engages with each other via the engaging notch 2121 and the positioning groove 124. (See attached drawing) Figure 7 This makes the engagement between the second guide 212 and the positioning groove 124 more stable. In one embodiment, a locking feedback sound is emitted when the engagement notch 2121 engages with the positioning groove 124, which is beneficial for blind operation by the user.

[0074] In one embodiment, a guide protrusion 1231 is provided on the bottom wall at the far end of the second slide groove 123. The guide protrusion 1231 is located at the entrance of the positioning groove 124 and is used to guide the engagement notch 2121 of the second guide member 212 to smoothly enter the positioning groove 124 and engage.

[0075] In one embodiment of the present invention, the proximal end of the second slide groove 123 is inclined relative to its distal end toward the proximal end of the main body assembly 12 along its length direction. The inclination angle of the second slide groove 123 is between 45° and 90°, and can be 45°, 53°, 65°, 70°, 78°, or 85°, etc. Due to the inclined arrangement of the second slide groove 123, during the switching process of the yaw drive assembly 20 from the initial position to the yaw position, the swing rod 21 moves from a higher proximal position to a lower distal position.

[0076] In this embodiment, the direction of the second slide groove 123 is first defined. During use, the operator moves the lever 21 in a forward-backward direction, which better matches the natural bending direction of the thumb in the grip state, making operation easier. In this embodiment, the length direction of the second slide groove 123 is set to be inclined (relative to the vertical direction). Thus, during the movement, the side wall of the inclined second slide groove 123 will guide the movement of the lever 21, which is beneficial for the operator to apply force diagonally downward with the thumb when holding it with one hand. When switching from the oscillating state to the initial state, the setting of the inclined second slide groove 123 makes the rebound better, which is conducive to the rapid return of the lever and the better stability.

[0077] As one embodiment of the present invention, see Appendix Figure 2 The swing arm 21 has a protruding first guide 211 on the side wall of the portion inside the main body assembly 12. The first guide 211 and the second guide 212 are spaced apart. The side wall of the main body assembly 12 has a first groove 122 corresponding to the first guide 211. The length direction of the first groove 122 is consistent with the axial direction of the channel 13. The first guide 211 is slidably inserted into the first groove 122.

[0078] In this embodiment, the swing of the swing arm 21 is limited by the first slide groove 122 and the second slide groove 123. The first guide member 211 and the first slide groove 122 are slidably engaged, and the second guide member 212 and the second slide groove 123 are slidably engaged. By setting the distribution position of the first slide groove 122 and the second slide groove 123, when the swing arm 21 swings, the distal end of the swing arm 21 slides along the axial direction of the channel 13, thereby better driving the deflection connector 22. Through the design of the first slide groove 122 and the second slide groove 123, the swing direction of the first end and the second end of the swing arm 21 can be limited. When setting, by reasonably setting the relative position of the first slide groove 122 and the second slide groove 123, the swing of the swing arm 21 can be made easier and the sliding rod of the second end of the swing arm 21 can be made more stable.

[0079] In this embodiment, the included angle between the length directions of the first slide groove 122 and the second slide groove 123 is not specifically limited. When setting it up, since the length direction of the first slide groove 122 is determined, the orientation of the second slide groove 123 also determines the direction of the lever 21. The length direction of the second slide groove 123 can be designed more reasonably for the convenience of operation. For example, the slide direction of the second slide groove 123 shown in the figure can make it convenient for the user to move the lever 21 from front to back.

[0080] The first guide member 211 and the second guide member 212, the two opposite side walls of the swing rod 21 respectively fit together with the two opposite side walls of the mounting cavity 121, and the first slide groove 122 and the second slide groove 123 respectively penetrate through the two side walls of the mounting cavity 121 that fit together with the swing rod 21.

[0081] In one embodiment of the present invention, a first guide member 211 and a second guide member 212 are formed on opposite sides of the swing rod 21, and the opposite side walls of the swing rod 21 are respectively in contact with the opposite two side walls of the main body assembly 12. The first groove 122 and the second groove 123 respectively penetrate the two side walls of the main body assembly 12 and the swing rod 21 in contact with each other.

[0082] During the swinging process of the swing arm 21 in this embodiment, since the two opposite side walls are respectively in contact with the side wall of the mounting cavity 121, the side wall of the mounting cavity 121 can guide the swing of the swing arm 21, making the swing of the swing arm 21 more stable, and can also improve the stability of the deflection of the forceps assembly 60 execution end, thereby ensuring better surgical results.

[0083] In one embodiment of the present invention, when the yaw drive assembly 20 is in the initial position, the first guide member 211 abuts against the proximal end of the first slide groove 122, and the second guide member 212 abuts against the proximal end of the second slide groove 123; when the yaw drive assembly 20 is in the yaw position, the first guide member 211 abuts against the distal end of the first slide groove 122, and the second guide member 212 abuts against the distal end of the second slide groove 123.

[0084] In this embodiment, by setting the first guide member 211 and the second guide member 212 to abut against the two ends of the corresponding first slide groove 122 and second slide groove 123 at the initial position and the swing position, respectively, the first slide groove 122 and the second slide groove 123 can limit the position of the swing rod 21 during the switching between the initial position and the swing position, making the swing rod 21 more stable at the functional position. In addition, the operator can more easily perceive the actual position of the swing rod 21 during operation, improving the convenience of operation.

[0085] In this embodiment, when the actuator of the clamping head assembly 60 is in its initial position, the corresponding lever 21 is also in its initial position. See Appendix. Figure 1 , 2 At this time, under the action of the oscillating elastic element 23, the pendulum 21 also stably maintains its initial position.

[0086] In this embodiment, when the handle is in use, if the actuator of the pliers assembly 60 needs to be reset from the swing position, the operator can continue to move the lever 21 in the same direction as the original moving direction to release the engagement between the second guide 212 and the positioning groove 124. When the second guide 212 is moved to a position that deviates from the limiting side of the positioning groove 124, the second guide 212 is quickly reset under the action of the swing elastic member 23.

[0087] As can be seen, in this embodiment, the reset of the swing arm 21 at the skew position only requires two movements of the swing arm 21. The design of the positioning groove 124 in this embodiment allows the locking and unlocking of the skew position of the actuator end of the pliers assembly 60 to be achieved by simply moving the swing arm 21, without the need for other operations. In use, the skew, locking, and reset of the actuator end of the pliers assembly 60 can be achieved with one hand, resulting in a simple structure.

[0088] As one embodiment of the present invention, referring to the accompanying drawings, in this embodiment, an opening is provided on the top side of the main body assembly 12, and the proximal end of the swing rod 21 extends from the opening on the top side of the main body assembly 12. When the proximal end of the swing rod 21 is turned by an external force, it swings along the front-back direction of the main body assembly 12. When the proximal end of the swing rod 21 swings from front to back, the distal end of the swing rod 21 pushes the actuating end of the pliers assembly 60 forward from the initial position to the deflection position. When the proximal end of the swing rod 21 swings from back to front, the distal end of the swing rod 21 moves backward, and the actuating end of the pliers assembly 60 returns to the initial position from the deflection position.

[0089] In this embodiment, the proximal end of the lever 21 extends from the top side of the main body assembly 12, which reduces the size in the width direction of the handle, making the overall structure more compact. Moreover, being located on the top side makes it easier for the thumb to apply a levering force to the first end of the lever 21, making operation convenient.

[0090] The present invention does not specifically limit the specific structure of the swing arm 21. In actual installation, the swing arm 21 can be a straight rod or a rod-shaped structure with a certain degree of bending, such as an L-shape or other shapes.

[0091] In addition, in actual installation, in order to facilitate the operation of the lever 21, an easy-to-operate recess can be provided at the near end of the lever 21, which helps the thumb to press stably on the lever 21.

[0092] As one embodiment of the present invention, see Appendix Figure 1 , 5The operating handle also includes an opening and closing drive assembly 30, which includes an opening and closing connector 32 and an opening and closing elastic member 33. The opening and closing connector 32 is slidably disposed in the channel 13 and is used to be fixedly connected to the opening and closing drive rod of the drive end of the pliers assembly 60. The opening and closing connector 32 is connected to the inner wall of the channel 13, and the opening and closing elastic member 33 is used to keep the actuating end of the pliers assembly 60 in the open state. At least part of the opening and closing connector 32 is disposed in the oscillating connector 22.

[0093] In this embodiment, the operating handle can drive the opening and closing of the clamp head assembly execution end through the opening and closing drive component 30. The operating handle has both tilt adjustment and opening and closing adjustment functions. At least a part of the opening and closing connector 32 in this embodiment is disposed in the tilt connector 22. The two are more compactly combined and can be adjusted independently without interference.

[0094] In this embodiment, the operating handle relies on the opening and closing elastic element 33 to keep the actuator end of the clamp head assembly 60 in the open state. In this way, during use, it is not necessary to rely on the operator's operation to maintain the open state of the actuator end of the clamp head assembly 60. For example, when placing a clamp into the clamp, the operation is more labor-saving.

[0095] As one embodiment of the present invention, see Appendix Figure 9 The opening and closing elastic element 33 is sleeved on the outside of the swing connector 22. The swing connector 22 is provided with a through groove 224. One end of the opening and closing elastic element 33 is fixedly connected to the opening and closing connector 32 through the through groove 224.

[0096] In this embodiment, the opening and closing elastic element 33 is sleeved on the outside of the swing connector 22 and connected to the opening and closing connector 32 through the through groove 224. This makes the installation of the opening and closing elastic element 33 more convenient. Since the main body of the opening and closing connector 32 is placed inside the swing connector 22, during installation, a part of the opening and closing connector 32 (spring seat) can protrude out of the swing connector 22 through the channel, which facilitates the connection between the opening and closing elastic element 33 and the opening and closing connector 32.

[0097] As one embodiment of the present invention, see Appendix Figure 1 , 24, 5, the handle further includes a rotary drive assembly 40, which includes a knob 41, a rotating cylinder 42 sleeved in the knob 41, a second end cap 34 at the distal end, and a rotary limiting member 15 at the proximal end. The rotating cylinder 42 is rotatably disposed at the distal end of the main body assembly 12 via the second end cap 34 and the rotary limiting member 15. The central cavity of the rotating cylinder 42 communicates with the channel 13. The opening and closing elastic member 33 and at least a portion of the opening and closing connecting member 32 are disposed in the central cavity of the rotating cylinder 42. A portion of the opening and closing connecting member 32 protrudes from the through groove 224 out of the swing connecting member 22. One end of the opening and closing elastic member 33 abuts against the second end cap 34, and the other end abuts against the portion of the opening and closing connecting member 32 protruding from the swing connecting member 22 (spring seat). The distal end of the swing elastic member 23 abuts against the rotary limiting member 15.

[0098] In this embodiment, the operating handle integrates the function of 360° rotation of the forceps assembly. This, together with the oscillation drive assembly 20 and the opening and closing drive assembly 30 disclosed above, can adapt to more complex surgical environments and improve surgical efficiency and quality.

[0099] The rotary drive assembly 40 also includes a rinsing cylinder 43. The rotating cylinder 42 and the knob 41 are respectively provided with radially through connecting holes. One end of the rinsing cylinder 43 passes through the connecting holes on the rotating cylinder 42 and the knob 41, and fixes the rotating cylinder 42 and the knob 41 together. The rinsing cylinder 43 is provided with a rinsing channel 44, which communicates with the central cavity of the rotating cylinder 42.

[0100] As one embodiment of the present invention, see Appendix Figure 9 The handle further includes a first end cap 14 and a rotation limiting member 15 disposed on the front side of the main body assembly 12. The rotation limiting member 15 includes a limiting cylinder 151 and a limiting baffle 152. The limiting baffle 152 is disposed at the front end of the limiting cylinder 151. The limiting cylinder 151 is sleeved and fixed on the front side of the main body assembly 12. The central cavity of the limiting cylinder 151 communicates with the channel 13. The first end cap 14 is sleeved on the main body assembly 12 and located on the rear side of the rotation limiting member 15. The first end cap 14 and the limiting baffle 152 are arranged opposite to each other and spaced apart along the axial direction of the channel 13. The limiting cylinder 151 is placed on the outer surface of the limiting baffle 152 and is provided with a groove 153 distributed circumferentially around the axis of the limiting cylinder 151. The inner wall of the rotating cylinder 42 or the knob 41 is provided with an elastic protrusion 45 opposite to the groove 153. As the knob 41 and the rotating cylinder 42 rotate, the elastic protrusion 45 is sequentially inserted into the groove 153 at different positions and emits a prompt sound.

[0101] In this embodiment, the rotation limiting member 15 (limiting baffle 152) and the first end cover 14 together limit the axial position of the knob 41 and the rotating drum 42, so that the rotating drum 42 and the knob 41 can only rotate and cannot slide axially. Through the setting of the elastic protrusion 45 and the slot 153, during the rotation of the knob 41, the elastic protrusion 45 can be inserted into different slots 153 and can produce a "click-click-click" sound, realizing the operation prompt sound of the pliers head assembly 60 rotating in the circumference, making the operation more experiential.

[0102] In one embodiment of the present invention, the gripping component 11 includes a fixed handle 111 fixedly connected to the main body component 12 and a movable handle 112 pivotally connected to the main body component 12. One end of the movable handle 112 is connected to the proximal end of the opening and closing connector 32. The swing rod 21 is provided with a through hole, and the connection between the movable handle 112 and the opening and closing connector 32 is located at the through hole.

[0103] In one embodiment of the present invention, the gripping component 11 includes a fixed handle 111 fixedly connected to the main body component 12 and a movable handle 112 pivotally connected to the main body component 12. The main body component 12 is provided with a limiting part, which is used to limit the engagement with the movable handle 112 to improve the stability of the movable handle 112 when rotating.

[0104] In this embodiment, the rotation of the movable handle 112 relative to the main body component 12 drives the movement of the opening and closing connector 32, thereby driving the opening and closing of the actuator end of the pliers assembly.

[0105] In one embodiment of the present invention, the rear end of the opening and closing drive rod connector 32 is provided with a receiving groove, and an opening and closing slide groove 321 is formed on the side wall of the receiving groove. The end of the opening and closing drive part 1123 extends into the receiving groove, and an opening and closing protrusion corresponding to the opening and closing slide groove 321 is formed on the side wall of the opening and closing drive part 1123. The opening and closing protrusion is inserted into the opening and closing slide groove 321. The rotation of the opening and closing drive part 1123 drives the linear movement of the opening and closing drive rod connector 32 through the interaction between the opening and closing protrusion and the side wall of the opening and closing slide groove 321.

[0106] In this embodiment, the opening and closing protrusion of the opening and closing drive unit 1123 is always within the opening and closing slide groove 321 during rotation, which can guide the rotation of the opening and closing protrusion. Moreover, during rotation, the opening and closing drive unit 1123 and the opening and closing drive rod connector 32 always remain connected, ensuring the stability and reliability of force transmission.

[0107] The movable handle 112 includes an opening / closing operation part 1121, a pivoting connection part 1122, and an opening / closing drive part 1123. The pivoting connection part 1122 is disposed between the opening / closing operation part 1121 and the opening / closing drive part 1123 and is pivotally connected to the main body assembly 12. The opening / closing drive part 1123 is disposed inside the main body assembly 12 and is connected to the opening / closing drive rod connector 32. The opening / closing operation part 1121 extends out of the bottom side of the main body assembly 12 and is opposite to the fixed handle 111. The rotation of the opening / closing operation part 1121 relative to the fixed handle 111 drives the opening / closing drive rod connector 32 to slide along the axial direction of the channel 13 through the opening / closing drive part 1123, thereby driving the opening or closing of the actuator end of the clamp head assembly 60.

[0108] The opening and closing elastic element 33 in this embodiment has a similar function to the above-mentioned oscillating elastic element 23. Firstly, the opening and closing elastic element 33 can make the movable handle 112 always have elastic damping when rotating, making the operation of the movable handle more tactile. In addition, when the movable handle is not subjected to external force, the opening and closing elastic element 33 keeps the execution end of the forceps assembly 60 in the open state, making the surgical operation more convenient.

[0109] In this embodiment, when the operator holds the handle in the fixed handle position, the other fingers (excluding the thumb) are used to grip the movable handle 112, with the thumb naturally pointing upwards to facilitate the operation of the lever 21. Furthermore, when it is necessary to control the rotation of the entire pliers assembly, the index finger can be used to turn the knob. It can be seen that in actual operation, the entire 360° rotation, tilting, and opening and closing of the pliers assembly can be completed with one hand. Moreover, by secondarily turning the lever 21, the lever 21 can be locked or unlocked in the tilting position. Compared with the handle structure of related technologies that requires two hands to operate, the handle of this invention is more convenient to use.

[0110] A second aspect of the present invention discloses a surgical clamp, comprising a clamp head assembly 60, a clamp head drive assembly, and a handle as described in the first aspect, which are connected in sequence. The clamp head drive assembly includes a yaw drive tube 52, which is placed in the channel 13 and connected to the distal end of the swing rod 21. When the proximal end of the swing rod 21 is moved by an external force, the yaw drive tube 52 is driven to slide along the axial direction of the channel 13, and the actuator of the clamp head assembly 60 is driven to switch between the yaw position and the initial position.

[0111] The driving end of the pliers head assembly 60 in the handle described in the first aspect is the pliers head driving assembly here.

[0112] The pliers head drive assembly also includes an opening / closing drive rod and an outer sleeve 51. The sway drive tube 52 is sleeved on the outside of the opening / closing drive rod, and the outer sleeve 51 is sleeved on the outside of the sway drive tube 52. The handle also includes an opening / closing drive assembly 30 and a rotation drive assembly 40. The opening / closing drive assembly 30 is used to drive the actuator of the pliers head assembly 60 to switch between an open and closed state via the opening / closing drive rod. The rotation drive assembly 40 includes a knob 41 and a rotating cylinder 42 that is sleeved and fixed to the knob 41. The rotating cylinder 42 is fixedly connected to the outer sleeve 51.

[0113] The surgical clamp in this embodiment can be operated with one hand to open, close, swing, and rotate the clamp head assembly 60 360°. It is easy to operate and has a clear operating feel during operation, resulting in a better user experience.

[0114] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A handle for a surgical clamp, comprising a body assembly (12) and a gripping assembly (11) located below the body assembly (12), wherein a channel (13) is formed in the body assembly (12) for receiving a drive end of a clamp head assembly (60), characterized in that, The handle also includes a yaw drive assembly (20), which includes a transmission unit and a yaw rod (21) connected to the transmission unit. The transmission unit is located in the channel (13) and is used for transmission connection with the drive end of the pliers assembly (60). The yaw rod (21) extends out of the main body assembly (12), and the yaw rod (21) and the grip assembly (11) are located on opposite sides of the proximal end of the main body assembly (12). The swing arm (21) is adapted to drive the transmission unit to switch between the initial position and the swing position under the action of external force. In the initial position and the swing position, the swing drive component (20) is in a limiting cooperation with the main body component (12). A protruding second guide (212) is formed on the side wall of the swing arm (21), and a second groove (123) corresponding to the second guide (212) is formed on the side wall of the main body assembly (12). The length direction of the second groove (123) intersects the axial direction of the channel (13), and the second guide (212) is slidably inserted into the second groove (123). The rocker arm (21) has a protruding first guide (211) on the side wall of the portion inside the main body assembly (12). The first guide (211) and the second guide (212) are spaced apart. The side wall of the main body assembly (12) has a first groove (122) corresponding to the first guide (211). The length direction of the first groove (122) is consistent with the axial direction of the channel (13). The first guide (211) is slidably inserted into the first groove (122).

2. The handle according to claim 1, characterized in that, The transmission unit includes a sway connector (22) and a sway elastic member (23) sleeved on the outside of the sway connector (22). The sway connector (22) is slidably disposed in the channel (13) along the axial direction of the channel (13). The front end of the sway connector (22) is fixedly connected to the driving end of the pliers assembly (60). One end of the sway elastic member (23) is connected to the sway connector (22), and the other end is connected to the inner wall of the channel (13). The sway elastic member (23) causes the proximal end of the sway connector (22) and the distal end of the swing rod (21) to abut and connect.

3. The handle according to claim 2, characterized in that, A positioning groove (124) extends laterally on the side wall at the far end of the second slide (123). In the tilted position, the second guide (212) engages with the positioning groove (124). Alternatively, in the skewed position, the second guide (212) engages with the positioning groove (124) under the action of the skewed elastic member (23).

4. The handle according to claim 3, characterized in that, The outer side wall of the second guide (212) is provided with a locking notch (2121) extending circumferentially along the second guide (212). In the deflection position, the locking notch (2121) engages with the positioning groove (124). During the switching process between the initial position and the deflection position of the swing rod (21), the proximal end of the deflection connector (22) and the distal end of the swing rod (21) remain in contact. And / or, a guide protrusion (1231) is provided on the bottom wall at the distal end of the second groove (123), the guide protrusion (1231) being located at the entrance of the positioning groove (124).

5. The handle according to claim 1, characterized in that, The proximal end of the second groove (123) along its length is inclined relative to its distal end toward the proximal end of the main body assembly (12).

6. The handle according to claim 5, characterized in that, The inclination angle of the second groove (123) is between 45° and 90°; And / or, during the process of the yaw drive assembly (20) switching from the initial position to the yaw position, the yaw rod (21) moves from the proximal high position to the distal low position.

7. The handle according to claim 1, characterized in that, The first guide (211) and the second guide (212) are formed on opposite sides of the swing rod (21), and the opposite side walls of the swing rod (21) are respectively in contact with the opposite two side walls of the main body assembly (12). The first slide groove (122) and the second slide groove (123) respectively penetrate the two side walls of the main body assembly (12) and the swing rod (21) in contact with each other. And / or, when the yaw drive assembly (20) is in the initial position, the first guide (211) abuts against the proximal end of the first slide (122), and the second guide (212) abuts against the proximal end of the second slide (123); when the yaw drive assembly (20) is in the yaw position, the first guide (211) abuts against the distal end of the first slide (122), and the second guide (212) abuts against the distal end of the second slide (123).

8. The handle according to claim 2, characterized in that, The handle also includes an opening and closing drive assembly (30), which includes an opening and closing connector (32) and an opening and closing elastic member (33). The opening and closing connector (32) is slidably disposed in the channel (13) and is used to be fixedly connected to the opening and closing drive rod of the drive end of the pliers assembly (60). The opening and closing connector (32) is connected to the inner wall of the channel (13). The opening and closing elastic member (33) is used to keep the actuating end of the pliers assembly (60) in the open state. At least part of the opening and closing connector (32) is disposed in the oscillating connector (22).

9. The handle according to claim 8, characterized in that, The opening and closing elastic element (33) is sleeved on the outside of the swing connector (22). The swing connector (22) is provided with a through groove (224). One end of the opening and closing elastic element (33) is fixedly connected to the opening and closing connector (32) through the through groove (224). And / or, the handle further includes a rotary drive assembly (40), the rotary drive assembly (40) including a knob (41), a rotating cylinder (42) sleeved within the knob (41), a second end cap (34) at the distal end, and a rotation limiting member (15) at the proximal end. The rotating cylinder (42) is rotatably disposed at the distal end of the main body assembly (12) via the second end cap (34) and the rotation limiting member (15). The central cavity of the rotating cylinder (42) communicates with the channel (13). An opening and closing elastic element (33) and at least a portion of the opening and closing connector (32) are disposed in the central cavity of the rotating drum (42). A portion of the opening and closing connector (32) protrudes from the through groove (224) out of the swing connector (22). One end of the opening and closing elastic element (33) abuts against the second end cap (34), and the other end abuts against the portion of the opening and closing connector (32) protruding from the swing connector (22). The distal end of the swing elastic element (23) abuts against the rotation limiting element (15).

10. The handle according to claim 8, characterized in that, The grip assembly (11) includes a fixed handle (111) fixedly connected to the main body assembly (12) and a movable handle (112) pivotally connected to the main body assembly (12). One end of the movable handle (112) is connected to the proximal end of the opening and closing connector (32). The swing rod (21) is provided with a through hole (213), and the connection between the movable handle (112) and the opening and closing connector (32) is located at the through hole (213). And / or, the grip assembly (11) includes a fixed handle (111) fixedly connected to the main body assembly (12) and a movable handle (112) pivotally connected to the main body assembly (12), the main body assembly (12) having a limiting portion for limiting cooperation with the movable handle (112).

11. A surgical clamp, comprising a clamp head assembly (60), a clamp head drive assembly, and a handle as described in any one of claims 1 to 10, connected in sequence, characterized in that, The clamp head drive assembly includes a yaw drive tube (52), which is placed in the channel (13) and connected to the distal end of the swing rod (21). When the proximal end of the swing rod (21) is moved by an external force, the yaw drive tube (52) slides along the axial direction of the channel (13), and the actuator of the clamp head assembly (60) switches between the yaw position and the initial position.

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