Thermal energy knife assembly and hot compression surgical instrument

Abstract

The application discloses a thermal energy knife assembly and a hot-press surgical instrument, and the thermal energy knife assembly comprises a knife rod, a first jaw, a second jaw, a movable piece, a first transmission mechanism and a second transmission mechanism. The first jaw is located at one end of the axial direction of the knife rod, and the first jaw is provided with a connecting section and a clamping section in sequence. One end of the connecting section is rotationally connected with the knife rod. One end of the second jaw is rotationally connected with the connecting section adjacent to one end of the clamping section, and the second jaw has a clamping position and a release position. The movable piece is movably installed on the connecting section, and the movable piece is further connected with the second jaw. The movable piece moves relative to the connecting section to drive the second jaw to switch between the clamping position and the release position. The first transmission mechanism is transmissionally connected with one end of the connecting section away from the clamping section. The second transmission mechanism is transmissionally connected with the movable piece. In this way, the clamping angle of the first jaw and the second jaw can be adjusted through the first transmission mechanism, and then the thermal energy knife assembly is convenient for use in surgery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a thermal knife assembly and a thermal pressure surgical instrument. Background Technology

[0002] In the prior art, thermal scalpel surgical instruments are commonly used to facilitate the ablation, cutting, and fusion of tissues. Existing thermal scalpel surgical instruments include a handle, a blade, a fixed clamp head, a movable clamp head, a heating element, and a drive mechanism. One end of the blade is fixedly connected to the handle, and the other end of the blade is used to mount the fixed clamp head and the movable clamp head. The drive mechanism is mounted on the handle and is connected to the movable clamp head to drive the movable clamp head to move along the blade, so that the movable clamp head can clamp or release tissue together with the fixed clamp head.

[0003] However, the clamping angle of the forceps in existing thermal scalpel surgical instruments is fixed, which means that the clamping angle cannot be adjusted. This increases the difficulty of performing surgery with existing thermal scalpel surgical instruments in confined spaces, and therefore urgently needs to be solved. Summary of the Invention

[0004] The main objective of this invention is to provide a thermal knife assembly that addresses the problem of high energy loss when the needle of a thermal knife assembly is driven in the prior art.

[0005] To achieve the above objectives, the present invention proposes a thermal energy knife assembly, which includes a knife shank, a first jaw, a second jaw, a movable component, a first transmission mechanism, and a second transmission mechanism; wherein,

[0006] The first pliers head is located at one end of the axial direction of the tool bar. The first pliers head extends along the axial direction of the tool bar and has a connecting section and a clamping section arranged in sequence. The end of the connecting section away from the clamping section is rotatably connected to the tool bar. One end of the second jaw is rotatably connected to the end of the connecting section adjacent to the clamping section, and the other end of the second jaw extends in a direction away from the connecting section. The second jaw has a clamping position and a releasing position. The movable component is movably mounted on the connecting section, and the movable component is also connected to the second clamping head. The movable component moves relative to the connecting section to drive the second clamping head to switch between the clamping position and the releasing position. The first transmission mechanism is connected to the end of the connecting section away from the clamping section. When the first transmission mechanism is driven, it causes the connecting section to rotate relative to the tool bar, so that the first pliers head swings relative to the tool bar. The second transmission mechanism is connected to the movable part. When the second transmission mechanism is driven, it causes the movable part to move relative to the connecting section, so that the second clamping head switches between the clamping position and the releasing position.

[0007] In some embodiments of the present invention, the tool holder is tubular, the first transmission mechanism includes a drive rod and a rocker arm, the drive rod is movably installed inside the tool holder, the drive rod can reciprocate linearly relative to the tool holder along the axial direction of the tool holder, one end of the rocker arm is rotatably connected to the end of the drive rod adjacent to the connecting section, and the other end of the rocker arm extends from the end of the tool holder adjacent to the connecting section and is rotatably connected to the connecting section, the position where the rocker arm is rotatably connected to the connecting section is staggered from the position where the tool holder is rotatably connected to the connecting section.

[0008] In some embodiments of the present invention, the tool holder includes a first rod body and a second rod body, both of which are tubular. The first rod body includes a pivot section and a plug section arranged sequentially along the axial direction. The outer diameter of the plug section is smaller than the outer diameter of the pivot section. The plug section is plugged into one end of the second rod body. The end of the pivot section away from the plug section is rotatably connected to the connecting section. The end of the swing rod away from the connecting section passes through the first rod body and extends into the second rod body. The drive rod is movably installed in the second rod body. The end of the drive rod adjacent to the first rod body is rotatably connected to the end of the swing rod extending into the second rod body. The drive rod is limited by the plug-in section in the axial direction of the second rod body.

[0009] In some embodiments of the present invention, the end face portion of the connecting segment away from the clamping segment extends toward the tool bar to form a pivot plate, and the end face portion of the tool bar adjacent to the connecting segment extends toward the connecting segment to form a connecting plate. The end of the connecting plate away from the tool bar and the end of the pivot plate away from the connecting segment are arranged radially opposite to each other on the tool bar. A rotating shaft extending toward the pivot plate is protruded from the surface of the connecting plate facing the pivot plate. The rotating shaft is rotatably connected to the pivot plate. The end of the rocker arm away from the drive rod is rotatably connected to the pivot plate. The end of the rocker arm away from the drive rod is also located on the periphery of the rotating shaft.

[0010] In some embodiments of the present invention, the end of the swing arm away from the drive rod is installed between the connecting plate and the pivot plate, and the rotation axis of the swing arm relative to the connecting section is parallel to and spaced apart from the rotation axis of the connecting section relative to the tool bar.

[0011] In some embodiments of the present invention, the connecting plate has a protruding abutment on its surface facing the pivot plate. The abutment is located on the side of the rotating shaft opposite to the swing rod. The height of the abutment in the direction of the connecting plate near the pivot plate is greater than or equal to the height of the drive rod in the direction of the connecting plate near the pivot plate. The abutment is used to abut against the pivot plate.

[0012] In some embodiments of the present invention, the drive rod is tubular, and the outer peripheral wall of the drive rod is recessed with a mounting groove. The mounting groove extends radially through the drive rod and extends axially through the end face of the drive rod adjacent to the connecting section. The outer peripheral wall of the drive rod is also provided with a positioning groove extending radially through the drive rod, and the positioning groove is connected to the mounting groove. The end of the swing arm away from the connecting section is installed in the mounting groove, and a mounting hole is also provided through the position where the swing arm aligns with the positioning groove; the second transmission mechanism also includes a positioning pin, which cooperates with the mounting hole and is installed in the positioning groove, and the two ends of the positioning pin in the axial direction respectively abut against the inner wall surface of the tool bar.

[0013] In some embodiments of the present invention, a relief groove is recessed on the outer peripheral wall of the tool bar adjacent to the connecting section. The relief groove is radially through the tool bar and also axially through the end face of the tool bar adjacent to the connecting section. A groove wall extending axially along the tool bar is coplanar with the surface of the connecting plate facing the pivot plate. The relief groove is used to accommodate the swing arm.

[0014] In some embodiments of the present invention, the thermal knife assembly further includes a handle and a drive mechanism; wherein the handle is connected to the end of the knife bar away from the connecting end, the handle has a mounting cavity communicating with the knife bar, and the end of the drive rod away from the swing rod extends into the mounting cavity; the drive mechanism is mounted on the handle, and the drive mechanism is connected to the end of the drive rod extending into the mounting cavity to drive the drive rod to move.

[0015] In some embodiments of the present invention, the driving mechanism includes a movable rod and a driving member. The movable rod is movably mounted in the mounting cavity and can move relative to the handle along the axial direction of the driving rod. The driving member is movably mounted to the handle and is throttle-connected to the movable rod. The driving member also extends at least partially out of the handle.

[0016] In some embodiments of the present invention, the mounting cavity is provided with a guide channel extending axially along the tool bar, the guide channel being located at the end of the tool bar away from the first pliers head, and the end of the drive rod away from the swing arm extending into the guide channel; The movable rod includes a guide section and a drive section. The guide section is installed in the guide channel and connected to one end of the drive rod that extends into the guide channel. The guide section can move along the axial direction of the tool bar in the guide channel. The drive section extends out from the end of the guide channel away from the tool bar. The driving member is movably connected to the handle and is also drivenly connected to the driving section. The driving member extends at least partially outside the handle and is used to drive the movable rod to move along the axial direction of the driving rod.

[0017] In some embodiments of the present invention, the outer peripheral wall of the drive segment is provided with a drive external thread; the drive member is a drive ring, the inner wall surface of the drive ring is provided with a drive internal thread, the drive ring is sleeved on the outer side of the drive segment, the drive internal thread of the drive ring engages with the drive external thread on the drive segment, the drive ring is also rotatably connected to the handle, and the outer peripheral wall of the drive ring is at least partially exposed outside the handle.

[0018] In some embodiments of the present invention, the guide segment is provided with a first clearance hole through the axial direction of the drive rod, so that the end of the drive rod away from the swing arm can be inserted. The inner wall surface of the first clearance hole is provided with an assembly groove, which extends circumferentially along the first clearance hole. The driving mechanism further includes a fixed ring and a spring clamp. The fixed ring is fixedly installed in the first clearance hole and is fixedly connected to the driving rod by a positioning pin. The spring clamp is installed in the first clearance hole, and the outer edge of the spring clamp is assembled into the assembly groove. The spring clamp limits the fixed ring in the axial direction of the driving rod.

[0019] In some embodiments of the present invention, the driving section is provided with a second clearance hole through the axial direction of the driving rod, the second clearance hole communicating with the first clearance hole, the second driving mechanism including a driving tube, the driving tube being movably sleeved on the outside of the tool bar and capable of moving relative to the tool bar along the axial direction of the tool bar, one end of the driving tube being connected to the movable member, the other end of the driving tube extending into the mounting cavity and passing through the fixing ring and the second clearance hole in sequence, the outer peripheral wall of the driving tube being provided with a guide hole through the radial direction of the driving rod, the guide hole extending along the axial direction of the driving rod, the guide hole allowing the positioning pin to pass through.

[0020] In some embodiments of the present invention, the movable member is tubular in shape, the movable member is movably sleeved on the outside of the connecting section, one end of the movable member adjacent to the clamping section is rotatably connected to one end of the second clamp head adjacent to the connecting section, and one end of the movable member away from the clamping section is drively connected to the second transmission mechanism.

[0021] In some embodiments of the present invention, a drive plate is provided on the end face of the movable member opposite to the tool bar. The drive plate extends along the axial direction of the tool bar. The drive plate is located on the side of the clamping section opposite to the second jaw. A drive arm is provided at one end of the second jaw adjacent to the connecting section. The drive arm extends toward the drive plate and is rotatably connected to the drive plate.

[0022] In some embodiments of the present invention, the second transmission mechanism includes a drive tube and two connecting rods. The drive tube is sleeved on the outside of the tool bar and can move relative to the tool bar along the axial direction of the tool bar. One end of each connecting rod is rotatably connected to the end of the movable member away from the clamping section, and the other end of each connecting rod is rotatably connected to the end of the drive tube adjacent to the connecting section. The rotation axes at both ends of each connecting rod are parallel to the rotation axis of the first clamp head.

[0023] In some embodiments of the present invention, the movable member is provided with two connecting arms at the end away from the clamping section, the two connecting arms extending along the axial direction of the tool bar, and the two connecting arms being opposite to each other and spaced apart. Two pivot arms are provided at one end of the drive tube adjacent to the connecting section. The two pivot arms extend along the axial direction of the tool bar. The two pivot arms are opposite to each other and spaced apart. The two pivot arms and the two connecting arms are aligned one to one. The pivot arm and the connecting arm, located on the same side, are rotatably connected to the same connecting rod, and the connecting section is rotatably connected to the tool bar at a position between the two ends of the connecting rod in the axial direction of the tool bar.

[0024] In some embodiments of the present invention, the thermal knife assembly further includes a handle, a third transmission mechanism, and a drive handle; wherein, the handle is fixedly connected to the end of the knife bar away from the connecting section, the handle has a mounting cavity, and the end of the drive tube away from the movable member extends into the mounting cavity; the third transmission mechanism is disposed in the mounting cavity and connected to the drive tube; the drive handle is movably connected to the handle, one end of the drive handle extends into the mounting cavity and is drivenly connected to the third transmission mechanism, and the other end of the drive handle is located outside the handle.

[0025] In some embodiments of the present invention, a fixing pin is provided on the inner wall surface of the mounting cavity, the fixing pin extends radially along the tool bar, a positioning hole is provided through the outer peripheral wall of the tool bar, the positioning hole is used to insert and cooperate with the fixing pin, and a clearance hole is provided on the drive tube corresponding to the position of the positioning hole, the clearance hole extends axially along the tool bar, and the clearance hole allows the fixing pin to pass through.

[0026] In some embodiments of the present invention, the third transmission mechanism includes a sliding seat, a return spring, and a swing rod; The sliding seat is installed in the mounting cavity and located on the periphery of the drive tube. The sliding seat can move relative to the handle along the axial direction of the drive tube. The sliding seat is connected to one end of the drive tube located in the mounting cavity. The return spring is installed in the mounting cavity. The return spring is connected to the sliding seat and applies a force to the sliding seat so that the sliding seat has a tendency to drive the drive tube to move closer to the connecting section. One end of the swing rod is rotatably connected to the sliding seat, and the other end of the swing rod extends toward the side of the sliding seat opposite to the drive tube. The drive handle is located on the side of the sliding seat opposite to the drive tube. One end of the drive handle extends into the mounting cavity and is rotatably connected to the handle and the end of the swing rod away from the sliding seat. The position where the drive handle is rotatably connected to the handle and the position where the drive handle is rotatably connected to the swing rod are staggered. The drive handle rotates relative to the handle to drive the sliding seat to move along the axial direction of the drive tube.

[0027] In some embodiments of the present invention, the thermal knife assembly further includes a transmission rod, a movable ring, a fixed ring, and an elastic reset member; wherein, The transmission rod is installed in the mounting cavity. One end of the transmission rod is fixedly connected to the end of the drive tube located in the mounting cavity. The other end of the transmission rod extends away from the drive tube along the axial direction of the drive tube. A limiting protrusion is provided on the outer peripheral wall of the transmission rod adjacent to the drive tube. The fixed ring is sleeved on the transmission rod and positioned at the end of the transmission rod away from the drive tube; the movable ring is movably sleeved on the transmission rod and located between the limiting protrusion and the fixed ring; the elastic reset member is sleeved on the transmission rod and located between the fixed ring and the movable ring. The sliding seat has a claw portion on the side facing the drive tube. The claw portion is movably connected to the transmission rod, and the claw portion is located on the side of the movable ring opposite to the fixed ring.

[0028] The present invention also proposes a thermo-pressure surgical instrument, which includes a thermoelectric blade assembly, wherein the thermoelectric blade assembly includes a blade shank, a first clamping head, a second clamping head, a movable component, a first transmission mechanism, and a second transmission mechanism; wherein, The first pliers head is located at one end of the axial direction of the tool bar. The first pliers head extends along the axial direction of the tool bar and has a connecting section and a clamping section arranged in sequence. The end of the connecting section away from the clamping section is rotatably connected to the tool bar. One end of the second jaw is rotatably connected to the end of the connecting section adjacent to the clamping section, and the other end of the second jaw extends in a direction away from the connecting section. The second jaw has a clamping position and a releasing position. The movable component is movably mounted on the connecting section, and the movable component is also connected to the second clamping head. The movable component moves relative to the connecting section to drive the second clamping head to switch between the clamping position and the releasing position. The first transmission mechanism is connected to the end of the connecting section away from the clamping section. When the first transmission mechanism is driven, it causes the connecting section to rotate relative to the tool bar, so that the first pliers head swings relative to the tool bar. The second transmission mechanism is connected to the movable part. When the second transmission mechanism is driven, it causes the movable part to move relative to the connecting section, so that the second clamping head switches between the clamping position and the releasing position.

[0029] In this invention, the end of the connecting section of the first clamping head furthest from the clamping section is rotatably connected to the blade shank. A first transmission mechanism is driven by the connecting section of the first clamping head, causing the first clamping head to swing relative to the blade shank. The end of the connecting section of the first clamping head furthest from the blade shank is rotatably connected to the second clamping head. A movable component is movably mounted on the first clamping head and driven by the second clamping head. A second transmission mechanism is driven by the movable component, driving the movable component to move relative to the connecting section, thereby switching the second clamping head between a clamping position and a release position. This configuration allows for adjustment of the clamping angles of the first and second clamping heads by driving the first transmission mechanism, and for controlling the switching of the second clamping head between the clamping and release positions by driving the second transmission mechanism. This facilitates adjustment of the clamping angles of the first and second clamping heads, enabling the thermal scalpel assembly to perform surgical procedures in confined spaces, and consequently, facilitating the use of thermosurgical instruments equipped with this thermal scalpel assembly for surgery. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is an exploded view of an embodiment of the thermal energy knife assembly of the present invention; Figure 2 for Figure 1 Assembly diagram of the medium-energy knife assembly; Figure 3 for Figure 1 An assembly diagram of the tool holder, first jaw, second jaw, moving parts, and first transmission mechanism in the medium-heat knife assembly; Figure 4 for Figure 1 A schematic diagram of the structure of one embodiment of the first clamp head; Figure 5 for Figure 1 A schematic diagram of the structure of one embodiment of the second clamp head; Figure 6 for Figure 1 Exploded view of an embodiment of the first transmission mechanism; Figure 7 for Figure 1 Exploded view of an embodiment of the tool holder; Figure 8 for Figure 1 A schematic diagram of another embodiment of the tool holder; Figure 9 This is a schematic diagram of another embodiment of the thermal energy knife assembly in this invention; Figure 10 for Figure 9 Another view of the thermal knife assembly; Figure 11 for Figure 9 A schematic diagram of the structure of one embodiment of the movable rod; Figure 12 for Figure 9 A cross-sectional view of the assembled drive mechanism, tool holder, and drive rod; Figure 13 for Figure 1 A schematic diagram of the structure after the moving parts and the second transmission mechanism are assembled; Figure 14 for Figure 1 A schematic diagram of the structure of one embodiment of the moving part; Figure 15 for Figure 9 A schematic diagram of the structure of an embodiment of the sliding seat; Figure 16 for Figure 9 A schematic diagram of the center handle.

[0032] Explanation of icon numbers:

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0037] Please see Figures 1 to 5 The thermal energy knife assembly 100 of this invention is applied to a thermal pressure surgical instrument. The thermal pressure surgical instrument 1000 is a surgical instrument that uses a heating wire to generate heat, thereby denaturing tissue proteins and closing blood vessels. The heating wire (which can be understood as a resistance wire) in the thermal pressure surgical instrument 1000 is electrically connected to a DC power supply. After the heating wire is energized, it generates heat and denatures proteins through heat conduction. The denatured proteins are then cut under the pressure of the first clamp head 15 and the second clamp head 20 of the thermal pressure surgical instrument 1000. It is worth noting that when cutting blood vessels, the heating wire can be used to close both ends of the blood vessel before cutting the blood vessel.

[0038] The thermal knife assembly 100 includes a knife bar 10, a first jaw 15, a second jaw 20, a movable part 25, a first transmission mechanism 30, and a second transmission mechanism 35. The first jaw 15 is located at one axial end of the knife bar 10, extending axially along the knife bar 10 and having a connecting section 151 and a clamping section 152 arranged sequentially. The end of the connecting section 151 away from the clamping section 152 is rotatably connected to the knife bar 10. One end of the second jaw 20 is rotatably connected to the end of the connecting section 151 adjacent to the clamping section 152, and the other end of the second jaw 20 extends axially along the knife bar 10 in a direction away from the connecting section 151. The second jaw 20 has a clamping position and a releasing position. The movable part 25 is movably mounted on the connecting section 151 and is also connected to the second jaw 20. The movable part 25 moves relative to the connecting section 151 to drive the second jaw 20 to switch between the clamping position and the release position. The first transmission mechanism 30 is driven to the end of the connecting section 151 away from the clamping section 152. When the first transmission mechanism 30 is driven, it drives the connecting section 151 to rotate relative to the tool bar 10, so that the first jaw 15 swings relative to the tool bar 10. The second transmission mechanism 35 is driven to the movable part 25. When the second transmission mechanism 35 is driven, it drives the movable part 25 to move relative to the connecting section 151 to drive the second jaw 20 to switch between the clamping position and the release position.

[0039] The cross-sectional shape of the blade shank 10 can be circular, elliptical, regular polygonal, etc., without specific limitations. If the blade shank 10 is exposed, its cross-sectional shape is preferably circular. This ensures that the outer peripheral wall of the blade shank 10 is smooth and without sharp edges, thus eliminating the risk of cutting the patient. It is worth noting that the blade shank 10 can be a solid structure or a tubular structure. Preferably, it is a tubular structure, which facilitates the installation and arrangement of other structural components of the thermal knife assembly 100.

[0040] The first jaw 15 is generally elongated. The first jaw 15 can be arranged in a straight line, in which case the connecting section 151 and the clamping section 152 of the first jaw 15 are on a straight line; the first jaw 15 can be arranged in a Z-shape, in which case the connecting section 151 and the clamping section 152 of the first jaw 15 are arranged along the axial direction of the tool holder 10, and at the same time the connecting section 151 and the clamping section 152 of the first jaw 15 are also offset in the radial direction of the tool holder 10; the first jaw 15 can also be arranged in other shapes, as long as the overall outline of the first jaw 15 is elongated.

[0041] The connecting section 151 of the first clamp head 15 is rotatably connected to the tool holder 10. There are various ways in which the connecting section 151 is rotatably connected to the tool holder 10. The connecting section 151 can be rotatably connected to the tool holder 10 through a shaft structure, bearing or other structure. The connecting section 151 can also be rotatably connected to the tool holder 10 through a connecting rod structure, gear structure or other structural components. The connecting section 151 can also be rotatably connected to the tool holder 10 through other structures. They will not be listed one by one here. As long as the rotatable connection between the connecting section 151 and the tool holder 10 can be achieved, it is acceptable.

[0042] The second jaw 20 is also elongated. Considering that the second jaw 20 needs to clamp the same target together with the clamping section 152 of the first jaw 15, the shape of the second jaw 20 is usually consistent with the clamping section 152 of the first jaw 15. This facilitates the first jaw 15 and the clamping section 152 to fixally clamp the same target. The second jaw 20 and the connecting section 151 can be rotatably connected by a shaft structure, bearing structure, or other structural components. Any structure that can achieve the rotatable connection between the second jaw 20 and the connecting section 151 is acceptable.

[0043] The second jaw 20 rotates relative to the connecting section 151 to have a clamping position and a release position. The clamping position and the release position do not refer to a specific location. In this invention, the clamping position of the second jaw 20 refers to the position where the second jaw 20 and the clamping section 152 can jointly clamp and fix the target. When the second jaw 20 and the clamping section 152 jointly release the target that was originally clamped and fixed, the position where the second jaw 20 is located is the release position.

[0044] It is worth noting that at least one of the first clamp head 15 and the second clamp head 20 is provided with a heating wire. The heating wire can be disposed on the surfaces of the first clamp head 15 and / or the second clamp head 20 facing each other, or it can be embedded in the first clamp head 15 and / or the second clamp head 20 with at least a portion of the heating wire exposed from the surfaces of the first clamp head 15 and the second clamp head 20 facing each other. Alternatively, the heating wire can be disposed within the first clamp head 15 and / or the second clamp head 20. In this case, a heat-conducting structure is provided on the side of the first clamp head 15 facing the second clamp head 20 and / or the side of the second clamp head 20 facing the first clamp head 15. This ensures that the heat generated by the heating wire when energized can be dissipated, thereby heating the tissue or blood vessel held by the first clamp head 15 and the second clamp head 20.

[0045] The movable component 25 can move relative to the connecting section 151 in various ways. The movable component 25 can rotate relative to the connecting section 151, for example, the movable component 25 can rotate in place relative to the connecting section 151, or the movable component 25 can rotate relative to the connecting section 151 under the swing of the lever mechanism. In this case, the motion trajectory of the movable component 25 can be a circle or a segment of an arc. The movable component 25 can also perform linear motion relative to the connecting section 151. In this case, the movable component 25 can perform reciprocating linear motion relative to the connecting section 151. The movable component 25 can also perform other types of motion relative to the connecting section 151, which will not be listed here.

[0046] It should be noted that a heating element is usually provided on the surface of the first clamping section 152 facing the second clamping head 20 or the surface of the second clamping head 20 facing the clamping section 152. The heating element will heat up when energized. The high-temperature heating element, together with the first clamping head 15 and the second clamping head 20, can perform a hot-pressing surgical operation on the object fixedly clamped by the first clamping head 15 and the second clamping head 20.

[0047] There are many types of first transmission mechanism 30 and second transmission mechanism 35. For example, first transmission mechanism 30 and second transmission mechanism 35 can be a steel cable structure, or a connecting rod structure, or a sprocket structure. The first transmission mechanism 30 and second transmission mechanism 35 can also be composed of other structural components, which will not be listed here. It should be noted that the structures of the first transmission mechanism 30 and second transmission mechanism 35 in this invention can be the same or different, and no specific limitation is made here.

[0048] In this invention, the end of the connecting section 151 of the first jaw 15 away from the clamping section 152 is rotatably connected to the knife bar 10. The first transmission mechanism 30 is operatively connected to the connecting section 151 of the first jaw 15. When the first transmission mechanism 30 is driven, it causes the first jaw 15 to swing relative to the knife bar 10. The end of the connecting section 151 of the first jaw 15 away from the knife bar 10 is rotatably connected to the second jaw 20. The movable part 25 is operatively mounted on the first jaw 15 and operatively connected to the second jaw 20. The second transmission mechanism 35 is operatively connected to the movable part 25. The second transmission mechanism 35 drives the movable part 25 to move relative to the connecting section 151, thereby causing the second jaw 20 to switch between the clamping position and the release position. With this configuration, the clamping angle of the first clamp head 15 and the second clamp head 20 can be adjusted by driving the first transmission mechanism 30, while the second transmission mechanism 35 can be driven to control the second clamp head 20 to switch between the clamping position and the release position. This facilitates the adjustment of the clamping angle of the first clamp head 15 and the second clamp head 20, thereby facilitating the performance of surgical actions by the thermal energy knife assembly 100 in a confined space. In turn, it also facilitates the use of thermo-pressure surgical instruments equipped with the thermal energy knife assembly 100 for surgery.

[0049] Please see Figure 3 and Figure 6 In some embodiments of the present invention, the tool holder 10 is tubular, and the first transmission mechanism 30 includes a drive rod 301 and a rocker arm 302. The drive rod 301 is movably installed inside the tool holder 10 and can also reciprocate linearly relative to the tool holder 10 along the axial direction. One end of the rocker arm 302 is rotatably connected to one end of the drive rod 301 adjacent to the connecting section 151, and the other end of the rocker arm 302 extends from one end of the tool holder 10 adjacent to the connecting section 151 and is rotatably connected to the connecting section 151. The position where the rocker arm 302 is rotatably connected to the connecting section 151 is offset from the position where the tool holder 10 is rotatably connected to the connecting section 151.

[0050] That is, the line connecting the connecting section 151 to the rotatable connection of the tool bar 10 and the end of the swing arm 302 adjacent to the drive rod 301 is set at an angle greater than 0° with the swing arm 302. When the drive rod 301 reciprocates linearly along the axis of the tool bar 10, the swing arm 302 reciprocates linearly along the axis of the tool bar 10 along with the drive rod 301. During the movement, the swing arm 302 will apply an eccentric force to the connecting section 151. This eccentric force is set off from the position where the connecting section 151 is rotatably connected to the tool bar 10. This will cause the connecting section 151 to be unbalanced in force, so that the connecting section 151 is driven to rotate back and forth relative to the tool bar 10, and thus the entire first jaw 15 and the second jaw 20 are driven to swing relative to the tool bar 10.

[0051] Furthermore, it should be noted that there are many ways in which the rocker arm 302 and the drive rod 301 can be rotatably connected. The rocker arm 302 and the drive rod 301 can be rotatably connected via a shaft or bearing, or via a universal ball joint and hinge seat. Other structural components can also be used to achieve the rotatable connection, which is not limited here. Since the rocker arm 302 can rotate relative to the drive rod 301, it can also rotate relative to the drive rod 301 while reciprocating linearly along the axial direction of the tool holder 10 under the drive of the drive rod 301. This avoids the problem of bending or breaking of the rocker arm 302 during its axial movement along the tool holder 10 driven by the drive rod 301.

[0052] Further, please refer to Figure 3 and Figure 7In some embodiments of the present invention, the tool holder 10 includes a first rod body 101 and a second rod body 102, both of which are tubular. The first rod body 101 includes a pivot section 1011 and a plug section 1012 arranged sequentially along the axial direction. The outer diameter of the plug section 1012 is smaller than the outer diameter of the pivot section 1011. The plug section 1012 is plugged into one end of the second rod body 102 along the axial direction. The end of the pivot section 1011 away from the plug section 1012 is rotatably connected to the connecting section 151. The position where the pivot section 1011 is rotatably connected to the connecting section 151 is staggered from the position where the swing rod 302 is rotatably connected to the connecting section 151.

[0053] The end of the swing arm 302 away from the connecting section 151 extends through the first rod 101 into the second rod 102. The drive rod 301 is movably installed within the second rod 102. The end of the drive rod 301 adjacent to the first rod 101 is rotatably connected to the end of the swing arm 302 extending into the second rod 102. The drive rod 301 is also limited axially by the insertion section 1012 in the second rod 102. This configuration limits the travel of the drive rod 102 by the insertion section 1012, thus preventing the swing arm 302 from bending or breaking due to excessively close spacing between the drive rod 301 and the connecting section 151.

[0054] Please see Figure 3 , Figure 4 as well as Figure 8 In some embodiments of the present invention, the end face portion of the connecting segment 151 away from the clamping segment 152 extends toward the tool bar 10 and forms a pivot plate 153. The end face portion of the tool bar 10 adjacent to the connecting segment 151 extends toward the connecting segment 151 and forms a connecting plate 103. The end of the connecting plate 103 away from the tool bar 10 and the end of the pivot plate 153 away from the connecting segment 151 are arranged radially opposite to each other on the tool bar 10. A rotating shaft 104 extending toward the pivot plate 153 is protruded on the surface of the connecting plate 103 facing the pivot plate 153. The rotating shaft 104 is rotatably connected to the pivot plate 153. The end of the rocker arm 302 away from the drive rod 301 is rotatably connected to the pivot plate 153. The end of the rocker arm 302 away from the drive rod 301 is also located on the periphery of the rotating shaft 104.

[0055] Since the connecting plate 103 and the pivot plate 153 are arranged in directions that are close to or far from each other, the pivot plate 153 is not constrained or disturbed by the connecting plate 103 when it rotates relative to the connecting plate 103. This facilitates the swinging of the first jaw 15 relative to the blade shank 10 and ensures that the swinging angle of the first jaw 15 is large enough, thereby facilitating the adjustment of the clamping angle of the first jaw 15 and the second jaw 20. In addition, the pivot plate 153 and the connecting plate 103 are arranged radially opposite to each other on the blade shank 10. The thickness of the two plates after being superimposed radially on the blade shank 10 can be set to be less than the outer diameter of the blade shank 10. This ensures that the size of the connection between the pivot plate 153 and the connecting plate 103 is not too large, thereby ensuring that the thermal knife assembly 100 can perform surgery in a confined space.

[0056] Furthermore, the end of the rocker arm 302 away from the drive rod 301 is installed between the connecting plate 103 and the pivot plate 153. With this arrangement, the end of the rocker arm 302 away from the drive rod 301 can be limited by the connecting plate 103 and the pivot plate 153, thus ensuring that the end of the rocker arm 302 away from the drive rod 301 can only move between the connecting plate 103 and the pivot plate 153. At the same time, the rotation axis of the rocker arm 302 relative to the connecting section 151 is parallel to and spaced apart from the rotation axis of the connecting section 151 relative to the tool holder 10. This also ensures that the pivot plate 153 can rotate simultaneously relative to the connecting plate 103 and the end of the rocker arm 302 away from the drive rod 301.

[0057] Furthermore, the connecting plate 103 has a protruding abutment 105 on its surface facing the pivot plate 153. The abutment 105 and the end of the rocker arm 302 away from the drive rod 301 are respectively located on opposite sides of the rotating shaft 104. The height of the abutment 105 in the direction of the connecting plate 103 near the pivot plate 153 is greater than or equal to the height of the rocker arm 302 in the same direction. The abutment 105 is used to abut against the pivot plate 153. With this arrangement, the abutment 105 can abut against the pivot plate 153, thus avoiding the problem of the connecting plate 103 and the pivot plate 153 clamping the rocker arm 302 too tightly, which would prevent the rocker arm 302 from moving.

[0058] Please see Figure 3 and Figure 6In some embodiments of the present invention, the drive rod 301 is tubular, and a mounting groove 311 is provided radially through the outer peripheral wall of the drive rod 301. The mounting groove 311 is also provided axially through the end face of the drive rod 301 adjacent to the connecting section 151. A positioning groove 312 is also provided radially through the outer peripheral wall of the drive rod 301, and the positioning groove 312 is connected to the mounting groove 311. The end of the swing rod 302 away from the connecting section 151 is installed in the mounting groove 311, and a mounting hole 321 is provided at the position where the swing rod 302 aligns with the positioning groove 312. The first transmission mechanism 30 also includes a positioning pin 303, which cooperates with the mounting hole 321 and is installed in the positioning groove 312. The two ends of the positioning pin 303 in the axial direction respectively abut against the inner wall surface of the tool bar 10.

[0059] It should be noted that the rotation axes of the pivot plate 153 and the connecting plate 103 are usually intersecting and perpendicular to the axis of the tool holder 10. The axis of the drive rod 301 and the axis of the tool holder 10 are coincident. One end of the rocker arm 302 is fitted into the mounting groove 311 on the drive rod 301, which makes the rocker arm 302 adjacent to the outer peripheral wall of the drive rod 301. That is, the rocker arm 302 is offset from the axis of the drive rod 301. The end of the rocker arm 302 away from the drive rod 301 is also offset from the axis of the tool holder 10. This makes it convenient to place the end of the rocker arm 302 away from the drive rod 301 on the periphery of the rotating shaft 104.

[0060] Furthermore, please refer to the following: Figure 8 In some embodiments of the present invention, the outer peripheral wall of the tool bar 10 adjacent to the connecting section 151 is provided with a relief groove 106. The relief groove 106 is provided radially through the tool bar 10. The relief groove 106 is also provided axially through the end face of the tool bar 10 adjacent to the connecting section 151. A groove wall of the relief groove 106 extending axially along the tool bar 10 is also coplanar with the surface of the connecting plate 103 facing the pivot plate 153. The relief groove 106 is used to accommodate the rocker arm 302.

[0061] It should be noted that at least one portion of the rocker arm 302 engages with the clearance groove 106, meaning that the end of the rocker arm 302 away from the drive rod 301 can pass through the clearance groove 106. This further increases the distance between the end of the rocker arm 302 away from the drive rod 301 and the axis of the tool holder 10, making it easier to position the end of the rocker arm 302 away from the drive rod 301 on the circumference of the rotating shaft 104. At the same time, the clearance groove 106 on the tool holder 10 has a certain length in the axial direction of the tool holder 10, which allows the clearance groove 106 to also constrain the movement direction of the rocker arm 302, preventing the rocker arm 302 from deflecting during movement.

[0062] Please see Figure 3 , Figure 9 as well as Figure 10 In some embodiments of the present invention, the thermal knife assembly 100 further includes a handle 40 and a drive mechanism 45; wherein, the handle 40 is fixedly connected to the end of the knife bar 10 away from the connecting section 151, the handle 40 has a mounting cavity 401 communicating with the knife bar 10, and the end of the drive rod 301 away from the swing arm 302 extends into the mounting cavity 401; the drive mechanism 45 is mounted on the handle 40, the drive mechanism 45 is connected to the end of the drive rod 301 away from the swing arm 302, and the drive mechanism 45 is used to drive the drive rod 301 to reciprocate along the axial direction of the knife bar 10. This arrangement facilitates the operator's grip via the handle 40 and allows for adjustment of the clamping angle of the first jaw 15 and the second jaw 20 via the drive mechanism 45.

[0063] It should be noted that there are many types of drive mechanisms 45. Drive mechanisms 45 can be formed using a crank-slider structure, a linear motor, gears and racks, or other structural components; these will not be listed here. Please refer to [link / reference]. Figure 10 The drive mechanism 45 includes a movable rod 451 and a drive member 452. The movable rod 451 is movably installed in the mounting cavity 401. The drive member 452 is movably connected to the handle 40 and is also connected to the movable rod 451 to drive the drive rod 301 to perform reciprocating linear motion. The drive member 452 extends at least partially out of the handle 40, which makes it convenient for the user to manually drive the drive member 452.

[0064] Please refer to the following for details. Figure 11 and Figure 12 The mounting cavity 401 is provided with a guide channel 402 extending along the axial direction of the tool bar 10. The guide channel 402 is located at the end of the tool bar 10 away from the first jaw 15. The end of the drive rod 301 away from the swing arm 302 extends into the guide channel 402. The movable rod 451 includes a guide section 4511 and a drive section 4512. The guide section 4511 is installed in the guide channel 402 and connected to the end of the drive rod 301 that extends into the guide channel 402. The guide section 4511 can move along the axial direction of the tool bar 10 in the guide channel 402. The drive section 4512 extends out from the end of the guide channel 402 away from the tool bar 10. The drive member 452 is movably connected to the handle 40 and is drively connected to the drive section 4512. The drive member 452 extends at least partially outside the handle 40. The drive member 452 is used to drive the movable rod 451 to move along the axial direction of the drive rod 301. This configuration allows the operator to manually adjust the clamping angles of the first clamp head 15 and the second clamp head 20, thus facilitating the operator's control of the thermal knife assembly 100 for surgery.

[0065] Furthermore, the inner peripheral wall of the guide channel 402 is provided with two limiting planes 4021. The two limiting planes 4021 are radially spaced apart from the drive rod 301, and the two limiting planes 4021 also extend along the axial direction of the drive rod 301. That is to say, the two limiting planes 4021 have a certain length in the axial direction of the drive rod 301. The outer peripheral wall of the guide segment 4511 is correspondingly provided with two guide planes 4511a. The two guide planes 4511a are respectively located on two opposite sides of the guide segment 4511, and the two guide planes 4511a abut against the limiting planes 4021 on the corresponding sides. This arrangement ensures that the guide segment 4511 cannot rotate in the guide channel 402, and also ensures that the guide segment 4511 can smoothly reciprocate along the axial direction of the drive rod 301 in the guide channel 402.

[0066] Furthermore, the outer peripheral wall of the drive segment 4512 is provided with a drive external thread 4512a, and the drive component 452 is a drive ring. The inner wall surface of the drive ring is provided with a drive internal thread 4521. The drive ring is sleeved on the outer side of the drive segment 4512, and the drive internal thread 4521 of the drive ring mates with the drive external thread 4512a on the drive segment 4512. The drive ring is also rotatably connected to the handle 40, and the outer peripheral wall of the drive ring is at least partially exposed outside the handle 40. With this configuration, the movable rod 451 can be moved by external force by turning the drive ring, which facilitates the adjustment of the swing angle of the first jaw 15 and the second jaw 20. In addition, the threaded engagement has the advantage of precise transmission, which allows for accurate adjustment of the swing angle of the first jaw 15 and the second jaw 20.

[0067] It is worth noting that there are many ways to achieve a rotatable connection between the drive ring and the handle 40. For example, the drive ring and the handle 40 can be rotatably connected by a bearing. In this case, an annular sleeve shaft can be protruded from the axial end face of the drive ring. The annular sleeve shaft is arranged around the drive internal thread 4521 and is sleeved with the inner ring of the bearing. The cavity wall of the mounting cavity 401 is provided with an annular sleeve shaft that is sleeved with the outer ring of the bearing. This way, the rotatable connection between the drive ring and the handle 40 can be achieved. Alternatively, the drive ring has an annular recess on both axial end faces. Each annular recess is arranged around the drive internal thread 4521. The cavity wall of the mounting cavity 401 is provided with two annular sleeve shafts. The two annular sleeve shafts are located on both sides of the drive ring in the axial direction and are respectively connected to the annular recesses on the corresponding sides.

[0068] Furthermore, the guide section 4511 is provided with a first clearance hole 4511b through the drive rod 301 along the axial direction. The first clearance hole 4511b allows the end of the drive rod 301 away from the swing rod 302 to extend into it. The inner wall surface of the first clearance hole 4511b is provided with an assembly groove 4511c, which extends circumferentially along the first clearance hole 4511b. The drive mechanism 45 also includes a fixing ring 453 and a spring clamp 454. The fixing ring 453 is fixedly installed in the first clearance hole 4511b and is fixedly connected to the drive rod 301 by a positioning pin. The spring clamp 454 is installed in the first clearance hole 4511b, and the outer edge of the spring clamp 454 is assembled into the assembly groove 4511c. The spring clamp 454 limits the fixing ring 453 in the axial direction of the drive rod 301. This design facilitates the fixed connection between the guide section 4511 and the drive rod 301.

[0069] Furthermore, the drive section 4512 is provided with a second clearance hole 4512b extending through it axially. The second clearance hole 4512b is connected to the first clearance hole 4511b. Please refer to both descriptions. Figure 12 The second drive mechanism 45 includes a drive tube 351, which is movably sleeved on the outside of the tool holder 10 and can move relative to the tool holder 10 along its axial direction. One end of the drive tube 351 is connected to the movable member 25, and the other end extends into the mounting cavity 401 and passes through the fixing ring 453 and the second clearance hole 4512b in sequence. A guide hole 3511 is provided through the outer peripheral wall of the drive tube 351 along the radial direction of the drive rod 301. The guide hole 3511 extends along the axial direction of the drive rod 301 and is through which the positioning pin passes. This arrangement can also prevent the drive tube 351 from interfering with the movement of the drive rod 301; at the same time, the positioning pin can also restrict the rotation of the drive tube 351.

[0070] In some embodiments of the present invention, the movable member 25 can reciprocate linearly relative to the connecting segment 151. Please refer to [link to relevant documentation]. Figure 2 , Figure 3 , Figure 13 as well as Figure 14 Specifically, the movable component 25 is tubular and sleeved on the outside of the connecting section 151. The length of the movable component 25 in the axial direction of the tool holder 10 can be greater than, equal to, or less than the length of the connecting section 151 in the axial direction of the tool holder 10, as long as it ensures that the movable component 25 does not affect the rotation of the connecting section 151 relative to the tool holder 10. Preferably, the length of the movable component 25 in the axial direction of the tool holder 10 is less than the length of the connecting section 151 in the axial direction of the tool holder 10. In this way, the connecting section 151 can be used to restrict the movement direction of the movable component 25, while preventing the movable component 25 from affecting the rotation of the connecting section 151 relative to the tool holder 10.

[0071] One end of the movable member 25 adjacent to the clamping section 152 is rotatably connected to one end of the second jaw 20 adjacent to the connecting section 151. The position where the movable member 25 is rotatably connected to the second jaw 20 and the position where the second jaw 20 is rotatably connected to the connecting section 151 are offset. When the movable member 25 moves along the connecting section 151 toward the direction closer to the tool bar 10, the second jaw 20 switches to the clamping position under the action of the movable member 25. When the movable member 25 moves along the connecting section 151 toward the direction away from the tool bar 10, the second jaw 20 switches to the release position under the action of the movable member 25.

[0072] Furthermore, a drive plate 251 is provided on the end face of the movable member 25 facing away from the tool holder 10. The drive plate 251 extends along the axial direction of the tool holder 10. The drive plate 251 is located on the side of the clamping section 152 facing away from the second jaw 20. That is, the drive plate 251 and the clamping section 152 are located on two opposite sides of the clamping section 152. A drive arm 21 is provided at one end of the second jaw 20 near the connecting section 151. The drive arm 21 extends toward the drive plate 251 and is rotatably connected to the drive plate 251. This arrangement facilitates the switching of the second jaw 20 between the clamping position and the release position by driving it through the movable member 25.

[0073] Furthermore, a limiting boss 1511 is provided at one end of the connecting section 151 adjacent to the clamping section 152. The limiting boss 1511 is located in the middle of the connecting section 151 and is also located on the side of the movable member 25 facing away from the tool holder 10. The limiting boss 1511 is used to limit the movable member 25 in the axial direction of the tool holder 10. This setting restricts the range of motion of the movable member 25, thereby avoiding the movable member 25 from directly hitting the connecting section 151 and the position where the second clamp head 20 is rotated due to excessive force, which would cause the drive arm 21 to bend or be damaged.

[0074] Please see Figure 2 and Figure 13 In some embodiments of the present invention, the second transmission mechanism 35 includes a drive tube 351 and two connecting rods 352. The drive tube 351 is sleeved on the outside of the tool bar 10 and can move relative to the tool bar 10 along the axial direction of the tool bar 10. One end of each connecting rod 352 is rotatably connected to the end of the movable member 25 away from the clamping section 152, and the other end of each connecting rod 352 is rotatably connected to the end of the drive tube 351 adjacent to the connecting section 151. The rotation axes at both ends of each connecting rod 352 are parallel to the rotation axis of the first jaw 15. This arrangement facilitates the movement of the movable member 25 via the drive tube 351, thereby facilitating the switching of the position of the second jaw 20.

[0075] Furthermore, please refer to the following: Figure 14Two connecting arms 252 are provided at the end of the movable part 25 away from the clamping section 152. The two connecting arms 252 extend along the axial direction of the tool bar 10 and are positioned opposite each other and spaced apart. Two pivot arms 3512 are provided at the end of the drive tube 351 adjacent to the connecting section 151. The two pivot arms 3512 extend along the axial direction of the tool bar 10 and are positioned opposite each other and spaced apart. The two pivot arms 3512 and the two connecting arms 252 are aligned one-to-one. The pivot arms 3512 and the connecting arms 252 on the same side are rotatably connected to the same connecting rod 352. The position where the connecting section 151 is rotatably connected to the tool bar 10 is located between the two ends of the connecting rod 352 in the axial direction of the tool bar 10. This arrangement can avoid interference when the first jaw 15 swings, and at the same time ensure that the swing angle of the first jaw 15 is large enough.

[0076] Please see Figure 10 In some embodiments of the present invention, the thermal knife assembly 100 further includes a handle 40, a third transmission mechanism 50, and a drive handle 55. The handle 40 is fixedly connected to the end of the knife bar 10 away from the connecting section 151. The handle 40 is provided with a mounting cavity 401. The end of the drive tube 351 away from the movable member 25 extends into the mounting cavity 401. The third transmission mechanism 50 is located in the mounting cavity 401 and connected to the end of the drive tube 351 extending into the mounting cavity 401. The drive handle 55 is movably connected to the handle 40. One end of the drive handle 55 extends into the mounting cavity 401 and is drivenly connected to the third transmission mechanism 50. The other end of the drive handle 55 is located outside the handle 40. With this configuration, the drive rod 301 can be driven to move by applying a force to the drive handle 55, thus allowing manual adjustment of the clamping angle of the first jaw 15 and the second jaw 20.

[0077] It should be noted that there are multiple ways to fix the tool holder 10 and the handle 40. The tool holder 10 and the handle 40 can be fixed by a threaded connection, or by a snap-fit ​​structure fixedly mounted on the handle 40. Other methods can also be used to fix the tool holder 10 and the handle 40, which will not be listed here. Please refer to some embodiments of the present invention. Figure 3 and Figure 13A fixing pin is provided on the inner wall of the mounting cavity 401. The fixing pin extends radially along the tool holder 10. A positioning hole 107 is provided through the outer peripheral wall of the tool holder 10 for insertion and engagement with the fixing pin. A clearance hole 3513 is provided on the drive tube 351 corresponding to the positioning hole 107. The clearance hole 3513 extends axially along the tool holder 10 and allows the fixing pin to pass through. This design facilitates the fixed installation of the tool holder 10 and the handle 40, and also restricts the rotation of the drive tube 351 relative to the tool holder 10 by means of the positioning pin. This further ensures that the drive tube 351 can move more smoothly and steadily along the tool holder 10.

[0078] It is worth noting that the third transmission mechanism 50 can be a crank-slider structure, a gear and rack assembly, or a threaded and screw assembly; any mechanism capable of driving the drive tube 351 to perform reciprocating linear motion is acceptable. Please refer to [link / reference]. Figure 10 In some embodiments of the present invention, the third transmission mechanism 50 includes a sliding seat 501, a return spring 502, and a swing rod 503. The sliding seat 501, the return spring 502, and the swing rod 503 are used to convert the rotational motion of the drive handle 55 into linear motion, thereby driving the drive tube 351 to reciprocate along the axial direction of the tool holder 10.

[0079] Specifically, the sliding seat 501 is installed in the mounting cavity 401 and located on the periphery of the drive tube 351. The sliding seat 501 can move relative to the handle 40 along the axial direction of the drive tube 351. The sliding seat 501 is fixedly connected to one end of the drive tube 351 located in the mounting cavity 401. The return spring 502 is installed in the mounting cavity 401. The return spring 502 is connected to the sliding seat 501 and applies a force to the sliding seat 501, so that the sliding seat 501 has a tendency to drive the drive tube 351 towards the connecting section 151. One end of the swing rod 503 is connected to the sliding seat 501. 01 Rotary connection, the other end of the swing rod 503 extends toward the side of the sliding seat 501 opposite to the drive tube 351; the drive handle 55 is located on the side of the sliding seat 501 opposite to the drive tube 351, one end of the drive handle 55 extending into the mounting cavity 401 is rotatably connected to the handle 40 and the end of the swing rod 503 away from the sliding seat 501, the position of the drive handle 55 rotatably connected to the handle 40 and the position of the drive handle 55 rotatably connected to the swing rod 503 are staggered, the drive handle 55 rotates relative to the handle 40 to drive the sliding seat 501 to move along the axial direction of the drive tube 351.

[0080] Since the position where the drive handle 55 is rotatably connected to the handle 40 and the position where the drive handle 55 is rotatably connected to the swing rod 503 do not coincide, when the drive handle 55 is driven by an external force to rotate relative to the handle 40, the swing rod 503, driven by the drive handle 55, causes the sliding seat 501 to reciprocate linearly along the axial direction of the drive tube 351. This causes the movable part 25 to move relative to the connecting section 151, thereby causing the second clamping head 20 to switch between the clamping position and the releasing position.

[0081] Further, please refer to Figure 15 and Figure 16 The cavity wall of the mounting cavity 401 is provided with two guide grooves 403 arranged parallel to each other along the axial direction of the drive tube 351. The two guide grooves 403 are also located on two opposite sides of the sliding seat 501. Each opposite side of the sliding seat 501 is provided with a guide protrusion 5011. The two guide protrusions 5011 and the two guide grooves 403 are correspondingly engaged and slidably connected. This arrangement ensures that the sliding seat 501 can slide smoothly and stably in the mounting cavity 401. On the other hand, the two guide grooves 403 can also limit the range of motion of the sliding seat 501, which facilitates the control of the stroke of the sliding seat 501 driving the drive tube 351.

[0082] Further, please refer to Figure 10 The thermal knife assembly 100 also includes a transmission rod 60, a movable ring 65, an elastic reset member 70, and a fixed ring 75. The transmission rod 60 is installed in the mounting cavity 401. One end of the transmission rod 60 is fixedly connected to the end of the drive tube 351 located in the mounting cavity 401. The other end of the transmission rod 60 extends away from the drive tube 351 along the axial direction of the drive tube 351. A limiting protrusion 601 is provided on the outer peripheral wall of the end of the transmission rod 60 adjacent to the drive tube 351. The fixed ring 453 is sleeved with the transmission rod 60 and positioned at the end of the transmission rod 60 away from the drive tube 351. The movable ring 65 is movably sleeved on the transmission rod 60 and located between the limiting protrusion 601 and the fixed ring 453. The elastic reset member 70 is sleeved on the transmission rod 60 and located between the fixed ring 453 and the movable ring 65.

[0083] A cleaver 5012 is provided on the side of the sliding seat 501 facing the drive tube 351. The cleaver 5012 is movably connected to the transmission rod 60 and is located on the side of the movable ring 65 facing away from the fixed ring 453. The cleaver 5012 moves along the axial direction of the drive tube 351 under the drive of the sliding seat 501. When the cleaver 5012 slides relative to the drive tube 351 towards the movable ring 65 and closer to the fixed ring 453, the elastic reset member 70 is compressed and elastically supports the movable ring 65. When the elastic reset member 70 is compressed to a certain extent, the transmission rod 60 is driven to move along the drive tube 351 away from the cutter head. This allows the drive tube 351 to drive the movable member 25 to move, thereby switching the second jaw 20 to the clamping position.

[0084] It is worth noting that the setting of the elastic reset member 70 can ensure that the force required by the drive tube 351 to drive the movable member 25 to move each time is relatively large. This ensures that the force acting on the second clamp head 20 is relatively large each time. Therefore, it can also ensure that the clamping degree of the second clamp head 20 is relatively large when it switches to the clamping position, which makes it easier for the second clamp head 20 and the first clamp head 15 to perform the corresponding surgical actions.

[0085] The present invention also proposes a thermo-pressure surgical instrument, which includes a thermo-energy knife assembly 100. The specific structure of the thermo-energy knife assembly 100 is as described in the above embodiments. Since the present thermo-pressure surgical instrument uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0086] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A thermal energy knife assembly, characterized in that, The thermal knife assembly includes a knife bar, a first jaw, a second jaw, a movable component, a first transmission mechanism, and a second transmission mechanism; wherein... The first pliers head is located at one end of the axial direction of the tool bar. The first pliers head extends along the axial direction of the tool bar and has a connecting section and a clamping section arranged in sequence. The end of the connecting section away from the clamping section is rotatably connected to the tool bar. One end of the second jaw is rotatably connected to the end of the connecting section adjacent to the clamping section, and the other end of the second jaw extends in a direction away from the connecting section. The second jaw has a clamping position and a releasing position. The movable component is movably mounted on the connecting section, and the movable component is also connected to the second clamping head. The movable component moves relative to the connecting section to drive the second clamping head to switch between the clamping position and the releasing position. The first transmission mechanism is connected to the end of the connecting section away from the clamping section. When the first transmission mechanism is driven, it causes the connecting section to rotate relative to the tool bar, so that the first pliers head swings relative to the tool bar. The second transmission mechanism is connected to the movable part. When the second transmission mechanism is driven, it causes the movable part to move relative to the connecting section, so that the second clamping head switches between the clamping position and the releasing position.

2. The thermal knife assembly as described in claim 1, characterized in that, The tool holder is tubular in shape. The first transmission mechanism includes a drive rod and a swing arm. The drive rod is movably installed inside the tool holder and can reciprocate linearly relative to the tool holder along the axial direction. One end of the swing arm is rotatably connected to the end of the drive rod adjacent to the connecting section, and the other end of the swing arm extends from the end of the tool holder adjacent to the connecting section and is rotatably connected to the connecting section. The position where the swing arm is rotatably connected to the connecting section is offset from the position where the tool holder is rotatably connected to the connecting section.

3. The thermal energy knife assembly as described in claim 2, characterized in that, The tool holder includes a first rod body and a second rod body, both of which are tubular. The first rod body includes a pivot section and a plug section arranged sequentially along the axial direction. The outer diameter of the plug section is smaller than the outer diameter of the pivot section. The plug section is plugged into one end of the second rod body. The end of the pivot section away from the plug section is rotatably connected to the connecting section. The end of the swing rod away from the connecting section passes through the first rod body and extends into the second rod body. The drive rod is movably installed in the second rod body. The end of the drive rod adjacent to the first rod body is rotatably connected to the end of the swing rod extending into the second rod body. The drive rod is limited by the plug-in section in the axial direction of the second rod body.

4. The thermal energy knife assembly as described in claim 2, characterized in that, The end face portion of the connecting segment away from the clamping segment extends toward the tool bar to form a pivot plate. The end face portion of the tool bar adjacent to the connecting segment extends toward the connecting segment to form a connecting plate. The end of the connecting plate away from the tool bar and the end of the pivot plate away from the connecting segment are arranged radially opposite to each other on the tool bar. A rotating shaft extending toward the pivot plate is protruded from the surface of the connecting plate facing the pivot plate. The rotating shaft is rotatably connected to the pivot plate. The end of the swing arm away from the drive rod is rotatably connected to the pivot plate. The end of the swing arm away from the drive rod is also located on the periphery of the rotating shaft.

5. The thermal knife assembly as described in claim 4, characterized in that, The end of the swing arm away from the drive rod is installed between the connecting plate and the pivot plate. The rotation axis of the swing arm relative to the connecting section is parallel to and spaced apart from the rotation axis of the connecting section relative to the tool bar.

6. The thermal knife assembly as described in claim 5, characterized in that, The connecting plate has a protruding abutment on its surface facing the pivot plate. The abutment is located on the side of the rotating shaft opposite to the swing rod. The height of the abutment in the direction of the connecting plate near the pivot plate is greater than or equal to the height of the drive rod in the direction of the connecting plate near the pivot plate. The abutment is used to abut against the pivot plate.

7. The thermal knife assembly as described in claim 4, characterized in that, The drive rod is tubular in shape, and a mounting groove is recessed on the outer peripheral wall of the drive rod. The mounting groove extends radially through the drive rod and extends axially through the end face of the drive rod adjacent to the connecting section. A positioning groove is also provided radially through the outer peripheral wall of the drive rod, and the positioning groove is connected to the mounting groove. The end of the swing arm away from the connecting section is installed in the mounting groove, and a mounting hole is also provided through the position where the swing arm aligns with the positioning groove; the second transmission mechanism also includes a positioning pin, which cooperates with the mounting hole and is installed in the positioning groove, and the two ends of the positioning pin in the axial direction respectively abut against the inner wall surface of the tool bar.

8. The thermal knife assembly as claimed in claim 7, characterized in that, The outer peripheral wall of the tool bar adjacent to the connecting section is provided with a relief groove. The relief groove is provided radially through the tool bar. The relief groove is also provided axially through the end face of the tool bar adjacent to the connecting section. One groove wall of the relief groove extending axially along the tool bar is coplanar with the surface of the connecting plate facing the pivot plate. The relief groove is used to accommodate the swing rod.

9. The thermal knife assembly as described in any one of claims 2 to 8, characterized in that, The thermal knife assembly also includes a handle and a drive mechanism; wherein... The handle is connected to the end of the tool bar away from the connecting end, the handle has a mounting cavity communicating with the tool bar, and the end of the drive rod away from the swing rod extends into the mounting cavity; The drive mechanism is mounted on the handle and is connected to one end of the drive rod that extends into the mounting cavity to drive the drive rod to move.

10. The thermal knife assembly as described in claim 9, characterized in that, The drive mechanism includes a movable rod and a drive member. The movable rod is movably installed in the mounting cavity and can move relative to the handle along the axial direction of the drive rod. The drive member is movably installed on the handle and is throttledly connected to the movable rod. The drive member also extends at least partially out of the handle.

11. The thermal knife assembly as described in claim 10, characterized in that, The mounting cavity is provided with a guide channel extending along the axial direction of the tool bar. The guide channel is located at the end of the tool bar away from the first pliers head, and the end of the drive rod away from the swing arm extends into the guide channel. The movable rod includes a guide section and a drive section. The guide section is installed in the guide channel and connected to one end of the drive rod that extends into the guide channel. The guide section can move along the axial direction of the tool bar in the guide channel. The drive section extends out from the end of the guide channel away from the tool bar. The driving member is movably connected to the handle and is also drivenly connected to the driving section. The driving member extends at least partially outside the handle and is used to drive the movable rod to move along the axial direction of the driving rod.

12. The thermal knife assembly as described in claim 11, characterized in that, The outer peripheral wall of the drive section is provided with a drive external thread; the drive component is a drive ring, the inner wall surface of the drive ring is provided with a drive internal thread, the drive ring is sleeved on the outside of the drive section, the drive internal thread of the drive ring engages with the drive external thread on the drive section, the drive ring is also rotatably connected to the handle, and the outer peripheral wall of the drive ring is at least partially exposed outside the handle.

13. The thermal knife assembly as described in claim 11, characterized in that, The guide section is provided with a first clearance hole through the axial direction of the drive rod, so that the end of the drive rod away from the swing arm can be inserted. The inner wall surface of the first clearance hole is provided with an assembly groove, which extends along the circumference of the first clearance hole. The driving mechanism further includes a fixed ring and a spring clamp. The fixed ring is fixedly installed in the first clearance hole and is fixedly connected to the driving rod by a positioning pin. The spring clamp is installed in the first clearance hole, and the outer edge of the spring clamp is assembled into the assembly groove. The spring clamp limits the fixed ring in the axial direction of the driving rod.

14. The thermal knife assembly as described in claim 13, characterized in that, The driving section is provided with a second clearance hole through the axial direction of the driving rod. The second clearance hole communicates with the first clearance hole. The second driving mechanism includes a driving tube, which is movably sleeved on the outside of the tool bar and can move relative to the tool bar along the axial direction of the tool bar. One end of the driving tube is connected to the movable part in a transmission manner, and the other end of the driving tube extends into the mounting cavity and passes through the fixing ring and the second clearance hole in sequence. The outer peripheral wall of the driving tube is provided with a guide hole through the radial direction of the driving rod. The guide hole extends along the axial direction of the driving rod and allows the positioning pin to pass through.

15. The thermal knife assembly as claimed in claim 1, characterized in that, The movable component is tubular and is movably sleeved on the outside of the connecting section. One end of the movable component adjacent to the clamping section is rotatably connected to one end of the second clamp head adjacent to the connecting section, and the other end of the movable component away from the clamping section is connected to the second transmission mechanism.

16. The thermal knife assembly as claimed in claim 15, characterized in that, A drive plate is provided on the end face of the movable part opposite to the tool bar. The drive plate extends along the axial direction of the tool bar and is located on the side of the clamping section opposite to the second jaw. A drive arm is provided at one end of the second jaw adjacent to the connecting section. The drive arm extends toward the drive plate and is rotatably connected to the drive plate.

17. The thermal knife assembly as described in claim 15, characterized in that, The second transmission mechanism includes a drive tube and two connecting rods. The drive tube is sleeved on the outside of the tool bar and can move relative to the tool bar along the axial direction of the tool bar. One end of each connecting rod is rotatably connected to the end of the movable member away from the clamping section, and the other end of each connecting rod is rotatably connected to the end of the drive tube adjacent to the connecting section. The rotation axes at both ends of each connecting rod are parallel to the rotation axis of the first clamp head.

18. The thermal knife assembly as described in claim 17, characterized in that, The movable part is provided with two connecting arms at the end away from the clamping section. The two connecting arms extend along the axial direction of the tool bar and are arranged opposite to each other and spaced apart. Two pivot arms are provided at one end of the drive tube adjacent to the connecting section. The two pivot arms extend along the axial direction of the tool bar. The two pivot arms are opposite to each other and spaced apart. The two pivot arms and the two connecting arms are aligned one to one. The pivot arm and the connecting arm, located on the same side, are rotatably connected to the same connecting rod, and the connecting section is rotatably connected to the tool bar at a position between the two ends of the connecting rod in the axial direction of the tool bar.

19. The thermal knife assembly as claimed in claim 17, characterized in that, The thermal knife assembly further includes a handle, a third transmission mechanism, and a drive handle; wherein, the handle is fixedly connected to the end of the knife bar away from the connecting section, the handle has a mounting cavity, and the end of the drive tube away from the movable part extends into the mounting cavity; the third transmission mechanism is located in the mounting cavity and connected to the drive tube; the drive handle is movably connected to the handle, one end of the drive handle extends into the mounting cavity and is drivenly connected to the third transmission mechanism, and the other end of the drive handle is located outside the handle.

20. The thermal knife assembly as described in claim 19, characterized in that, The inner wall of the mounting cavity is provided with a fixing pin, which extends radially along the tool bar. The outer peripheral wall of the tool bar is provided with a positioning hole for insertion and engagement with the fixing pin. The drive tube is provided with a clearance hole corresponding to the position of the positioning hole, which extends axially along the tool bar and allows the fixing pin to pass through.

21. The thermal knife assembly as described in claim 19, characterized in that, The third transmission mechanism includes a sliding seat, a return spring, and a swing rod; The sliding seat is installed in the mounting cavity and located on the periphery of the drive tube. The sliding seat can move relative to the handle along the axial direction of the drive tube. The sliding seat is connected to one end of the drive tube located in the mounting cavity. The return spring is installed in the mounting cavity. The return spring is connected to the sliding seat and applies a force to the sliding seat so that the sliding seat has a tendency to drive the drive tube to move closer to the connecting section. One end of the swing rod is rotatably connected to the sliding seat, and the other end of the swing rod extends toward the side of the sliding seat opposite to the drive tube. The drive handle is located on the side of the sliding seat opposite to the drive tube. One end of the drive handle extends into the mounting cavity and is rotatably connected to the handle and the end of the swing rod away from the sliding seat. The position where the drive handle is rotatably connected to the handle and the position where the drive handle is rotatably connected to the swing rod are staggered. The drive handle rotates relative to the handle to drive the sliding seat to move along the axial direction of the drive tube.

22. The thermal knife assembly as described in claim 21, characterized in that, The thermal knife assembly also includes a transmission rod, a movable ring, a fixed ring, and an elastic reset component; wherein... The transmission rod is installed in the mounting cavity. One end of the transmission rod is fixedly connected to the end of the drive tube located in the mounting cavity. The other end of the transmission rod extends away from the drive tube along the axial direction of the drive tube. A limiting protrusion is provided on the outer peripheral wall of the transmission rod adjacent to the drive tube. The fixed ring is sleeved on the transmission rod and positioned at the end of the transmission rod away from the drive tube; the movable ring is movably sleeved on the transmission rod and located between the limiting protrusion and the fixed ring; the elastic reset member is sleeved on the transmission rod and located between the fixed ring and the movable ring. The sliding seat has a claw portion on the side facing the drive tube. The claw portion is movably connected to the transmission rod, and the claw portion is located on the side of the movable ring opposite to the fixed ring.

23. A thermo-pressure surgical instrument, characterized in that, Includes the thermal knife assembly as described in any one of claims 1 to 22.

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