Bipolar electrocoagulation forceps

Abstract

The invention provides bipolar electrocoagulation forceps. The bipolar electrocoagulation forceps comprise an upper forceps head and a lower forceps head, the forceps body comprises an upper forceps rod and a lower forceps rod which are hinged with each other; the first handheld handle is movably connected with the rear part of the upper forceps rod; the second handheld handle is fixedly connected with the rear part of the lower forceps rod; the upper conductive connecting mechanism is arranged at the front end of the upper forceps rod and is detachably electrically and mechanically connected with the upper forceps head; the lower conductive connecting mechanism is arranged at the front end of the lower forceps rod and is detachably electrically and mechanically connected with the lower forceps head; the built-in lead comprises a first branch arranged in the upper forceps rod in a penetrating manner and a second branch arranged in the lower forceps rod in a penetrating manner; the interface box is arranged on the second handheld handle and communicated with the rear portion of the lower forceps rod, two independent electric connection terminals are arranged in the interface box, and insulation structures are arranged between the upper conductive connection mechanism and the upper forceps rod and between the lower conductive connection mechanism and the lower forceps rod. And when the upper forceps head and the lower forceps head are electrified, the upper forceps rod and the lower forceps rod are insulated.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, the embodiments of this application relate to a bipolar electrocoagulation forceps. Background Technology

[0002] Bipolar electrocoagulation forceps are surgical instruments that use high-frequency electrical energy to coagulate tissue and thus achieve hemostasis. The working principle is that the current flows through the two electrodes of the forceps (i.e., the upper and lower forceps heads) through the human tissue and generates a local thermal effect, causing protein denaturation or blood vessel closure.

[0003] The bipolar electrocautery forceps provided by the relevant technologies have the following shortcomings: For the integrated structure, where the upper and lower jaws are inseparable from the forceps body, the electrode tips are prone to adhering with tissue carbides after use, making cleaning and disinfection extremely difficult, thus posing a risk of cross-infection. For the non-integrated structure, where the upper and lower jaws are detachable from the forceps body, there are issues such as electrical conductivity or exposed wires in the forceps body, resulting in lower safety and convenience of operation.

[0004] Therefore, how to provide a safer and easier-to-use bipolar electrocautery clamp has become an urgent technical problem to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a bipolar electrocoagulation forceps. Some embodiments of this application's bipolar electrocoagulation forceps achieve integration and concealment of the internal wiring space of the upper and lower forceps through complementary opening designs on the side walls of the upper and lower forceps, avoiding exposed wires and improving safety. The interface box set on the fixed handle completes the access of external power supply and electrical connection of internal wires, achieving circuit continuity without exposed wires and ensuring no interference with the surgical field. The insulation structure ensures that the forceps head is energized while the forceps body is not energized, improving the operator's operational safety and improving operational convenience.

[0006] In a first aspect, embodiments of this application provide a bipolar electrocautery clamp, the bipolar electrocautery clamp comprising: an upper clamp head and a lower clamp head; a clamp body comprising: an upper clamp bar and a lower clamp bar hinged together; an upper conductive connection mechanism disposed at the front end of the upper clamp bar, one end of which forms a detachable electrical and mechanical connection with the upper clamp head; a lower conductive connection mechanism disposed at the front end of the lower clamp bar, one end of which forms a detachable electrical and mechanical connection with the lower clamp head; an internal conductor comprising a first branch passing through the upper clamp bar and a second branch passing through the lower clamp bar, wherein one end of the first branch is electrically connected to the other end of the upper conductive connection mechanism, and one end of the second branch is electrically connected to the other end of the lower conductive connection mechanism; a first hand handle movably connected to the rear of the upper clamp bar, serving as an operating handle; and a second hand handle movably connected to the rear of the lower clamp bar. A fixed connection serves as a gripping handle; an interface box, located on the second hand handle and connected to the rear of the lower clamp bar, contains two independent electrical connection terminals, one end of which is connected to the other end of the first branch and the other end of the second branch, respectively; the upper and lower clamp bars have openings extending along their length on their adjacent sidewalls, which allow the wiring spaces inside the upper and lower clamp bars to communicate when they are closed; the first branch extends into the rear of the lower clamp bar along the communication space formed by the openings; insulation structures are provided between the upper conductive connection mechanism and the upper clamp bar, and between the lower conductive connection mechanism and the lower clamp bar, so that the upper and lower clamp bars remain insulated when the upper and lower clamp heads are energized.

[0007] The embodiments of this application achieve integrated internal wiring space through complementary openings on the side walls of the upper and lower clamp bars. An interface box fixed to the fixed handle facilitates external power supply access and electrical connection between the first and second branches and the external power source. Circuit connectivity is achieved without exposed wires, ensuring uninterrupted surgical visibility. An insulating structure guarantees the electrical safety of the bipolar electrocoagulation forceps. While ensuring flexible opening and closing of the clamp head and reliable conductivity, the risk of leakage is avoided, enhancing product safety and functionality, and improving the safety and convenience of equipment operation.

[0008] In some embodiments, the upper conductive connection mechanism includes: a conductive base, one end of which is fixed to the front end of the upper clamp bar; a clamp head connector, which is rotatably mounted on the other end of the conductive base; and a rotating conductive shaft connecting the conductive base and the clamp head connector; wherein the clamp head connector is used to detachably mount the upper clamp head.

[0009] The embodiments of this application integrate the mechanical rotation center and the electrical conduction path into one through the integrated design of the conductive base, the rotating conductive shaft and the clamp head connecting seat, thus solving the technical problem of stable power supply at the moving joint.

[0010] In some embodiments, the pliers head connector includes: a first main metal block; a first front end metal structure extending forward from the front end of the first main metal block for connection with the detachable upper pliers head; and side wing structures distributed on both sides of the rear end of the first main metal block, each side wing being an outwardly extending plate-like structure, and the plate-like structure having a pair of conductive base connection holes and a pair of lower conductive connection mechanism connection holes; wherein the pair of conductive base connection holes are used to pass through the rotating conductive shaft, so that the pliers head connector is rotatably mounted on the conductive base, and the lower conductive connection mechanism connection holes are used for insulating connection of the lower conductive connection mechanism.

[0011] The clamp head connector of this application employs a side-wing structure design with two pairs of independent holes to achieve functional zoning: the upper hinge holes (i.e., a pair of conductive base connection holes) are dedicated to forming a stable rotating conductive joint with the conductive base, ensuring the continuity of current transmission; the lower mounting holes (i.e., a pair of lower conductive connection mechanism connection holes) provide an interface for insulated mechanical engagement with the lower components, enhancing the overall mechanical strength and motion stability of the joint while ensuring electrical isolation between the upper and lower clamp bars. This design allows a single component to simultaneously perform multiple functions such as conductivity, rotation, insulated engagement, and structural reinforcement, improving the overall reliability, safety, and service life of the instrument.

[0012] In some embodiments, the pliers head connector further includes: a first protrusion disposed at the rear of the lower surface of the first main metal block; the upper pliers head includes: a head, which is a cover structure with a rear opening, the internal contour of which matches the first front metal structure, for fitting and accommodating the first front metal structure; a middle connecting section, which has two symmetrical U-shaped grooves; and a tail buckle, which has a locking interface; wherein, when the upper pliers head is fitted onto the pliers head connector, the first protrusion engages with the locking interface in the tail buckle to achieve a detachable connection.

[0013] The embodiments of this application achieve quick and reliable assembly and disassembly of the upper jaw and jaw connector through a multi-stage connection method involving socketing, guiding, and snap-fitting: the shell-type head ensures a large area of ​​electrical contact, while the two symmetrical U-shaped grooves provide a moderate range of elastic movement for the snap-fitting edge. The protrusion and snap-fit ​​structure at the tail provide a good assembly feel and a secure axial locking. This composite connection mechanism improves electrical conductivity while also enhancing the ease of operation and connection reliability of the instrument, ensuring the realization of modular design.

[0014] In some embodiments, the conductive base includes: a second main metal block, the front of which can be inserted into the middle portion of the two plate-like structures and is provided with a pair of clamp head connecting holes, wherein the clamp head connecting holes are aligned with the conductive base connecting holes to achieve a hinge connection between the conductive base and the clamp head connecting holes; two side metal blocks, symmetrically arranged on both sides of the tail of the second main metal block; an upper wiring connecting block, extending rearward from the central region of the tail of the second main metal block, the hollow portion of which can be inserted into the upper wiring cavity, and is insulated and fixedly connected to the upper clamp bar; wherein the insulating structure is an insulating ring, the insulating ring is sleeved on the upper wiring connecting block and located between the tail end faces of the second main metal block and the side metal blocks and the front end face of the upper clamp bar, to achieve surface-to-surface insulation between the conductive base and the upper clamp bar.

[0015] The conductive base and its insulation system in this embodiment adopt a surface insulation isolation design, with the insulating ring effectively blocking the leakage path of the metal end of the conductive base to the contact surface of the upward clamping bar. This insulation structure, which is differentiated for the leakage mode (surface contact), effectively isolates the electrical transmission path flowing to the upward clamping bar while saving space, thus improving the safety of the device.

[0016] In some embodiments, the upper wiring connector is provided with a first upper clamp rod connection hole and a second upper clamp rod connection hole; the upper clamp rod includes: a first front end insertion portion, which is a cavity matching the shape of the upper wiring connector for accommodating the upper wiring connector, and is provided with a first upper wiring connector hole and a second upper wiring connector hole; the bipolar electrocoagulation clamp further includes: a first shaft and a second shaft, which are respectively inserted into the aligned first upper clamp rod connection hole and the first upper wiring connector hole, and the aligned second upper clamp rod connection hole and the second upper wiring connector hole, to achieve a fixed connection between the upper clamp rod and the conductive base; the conductive base further includes: a first insulating sleeve, sleeved on the outer wall of the first shaft; a second insulating sleeve, sleeved on the outer wall of the second shaft; wherein the first insulating sleeve and the second insulating sleeve are both located between the corresponding shaft and the corresponding part of the conductive base, for achieving shaft hole insulation between the conductive base and the upper clamp rod.

[0017] The embodiments of this application, through the cooperation of dual axes and dual insulating sleeves, achieve mechanical fixation of the conductive base and the upper clamp bar while establishing independent shaft hole insulation barriers at two stress points. This redundant insulation design ensures that even if one insulation point faces extreme stress or accident, the other insulation point can still maintain effective electrical isolation, greatly improving the reliability of the insulation system. The integrated design of mechanical fixation and electrical safety in the embodiments of this application enables safe and stable operation of the instrument within a limited space. The front end plug of the upper clamp bar in the embodiments of this application provides a stable and insulated mounting for the conductive base, better connecting the upper clamp bar and the conductive base to achieve synchronous movement of both along the lower clamp bar.

[0018] In some embodiments, the upper clamp bar further includes, sequentially connected along its length, a first middle section wiring portion connected to the tail of the first front end plug-in portion, having an upper wiring cavity inside and a first opening; a rear connection portion, having a downwardly extending front surface extension portion at the front end and a first hand handle connection portion on the side for hinged with the first hand handle; wherein, the first opening is located on the lower surface of the first middle section wiring portion, allowing the upper wiring cavity to communicate with the outside through the first opening, and when the upper clamp bar and the lower clamp bar are closed, the first opening and the corresponding opening portion of the lower clamp bar together form a wire passage channel; the front surface extension portion has a channel, through which the upper wiring cavity extends downward and communicates with an interface box located at the rear of the lower clamp bar, so that the first branch wire can pass through to the bottom of the interface box.

[0019] In this embodiment, the middle wiring section, through a built-in cavity and an opening on the lower surface, allows for electrical connection between the wires located inside the upper clamp bar and the junction box located at the tail of the lower clamp bar while concealing the wire wiring. This design enables the upper clamp bar to simultaneously fulfill functions such as mechanical support, electrical insulation, wire routing, and operational connection in a single component, efficiently utilizing limited space and ensuring a compact overall structure, reliable operation, and safe insulation of the instrument.

[0020] In some embodiments, the lower conductive connection mechanism includes: a conductive core comprising, in sequence: a second front-end metal structure, which is a protrusion for connecting with the lower jaw; a third main metal block, with a snap-fit ​​connection component on its upper part for snap-fit ​​connection with a corresponding component at the front end of the lower jaw; a first extending metal block, which is a block extending rearward from the third main metal block and has a first upper jaw bar insulating connection hole; a lower wiring connection block, extending rearward from the tail of the first extending metal block, the hollow portion of which can be inserted into the lower wiring cavity; and / or, an insulating outer shell. The structure encloses the conductive core and includes: an open front portion with a front groove to expose the second front-end metal structure and wrapping the sides and bottom of the third main metal block; a contracting cavity portion that encloses the first extended metal block, with a through hole on the side wall corresponding to the insulating connection hole of the first upper clamp rod; and an expanding cavity portion that encloses the lower wiring connection block. The conductive core is insulated and fixedly connected to the lower clamp rod via the lower wiring connection block, and the insulating connection hole of the first upper clamp rod is used to pass through an insulating shaft to achieve an insulated hinge between the upper clamp rod and the lower clamp rod.

[0021] The lower conductive connection mechanism in this embodiment adopts an integrated encapsulation design of a conductive core and an overall insulating shell. The conductive core integrates all functions of clamp connection, snap-locking, insulating hinge, and wiring extension, while the insulating shell provides an insulating protective layer, exposing only the necessary connection interfaces and related structures. This design physically isolates the risk of leakage, achieving high electrical safety and improving the insulation performance and stability of the lower part of the device.

[0022] In some embodiments, the lower clamp bar includes, sequentially connected along its length: a second front end insertion portion, having a cavity for accommodating and fixing the lower wiring connector, and a first lower wiring connector hole and a second lower wiring connector hole for passing through a fixing shaft; a second middle wiring portion, having the lower wiring cavity inside and a second opening at the top; a transition tail portion, being a hollow cavity for guiding the upper wiring cavity and the lower wiring cavity toward the bottom of the interface box; and a connecting tail portion, having second upper and lower clamp bar hinge holes for hinged with the upper clamp bar.

[0023] The lower clamp lever of this application adopts a segmented integrated design, distributing multiple functions such as insulation fixation, dual-wire routing, wire guidance, external interface connection, and motion hinge to different sections. Through complementary opening designs with the upper clamp lever, a hidden and non-interfering three-dimensional wiring channel is constructed; the transition tail allows for the orderly convergence of the two wires. This design makes the lower clamp lever a carrier integrating structural support, electrical insulation, cable management, and interface conversion, further ensuring the safety and reliability of the device.

[0024] In some embodiments, the interface box includes: an outer shell fixed to the outside of the first connecting rod on the upper part of the second hand handle, with an inner box receiving groove and a box connecting hole; an inner module housed in the box receiving groove, and including: a second boss, the top surface of which slides in contact with or has a gap with the lower surface of the tail end of the upper clamp rod; a second groove located at a lower position on one side of the second boss; a base located below the second boss and the second groove; a first metal pin and a second metal pin, vertically arranged, with the upper end located in the second groove and the lower end passing through the base and exposed; wherein, the inner module is fixedly connected to the outer shell through the box connecting hole, and a gap is formed between the inner module and the outer shell, wherein the gap is at least used for laying the tail sections of the first branch and the second branch.

[0025] The interface box in this embodiment employs a double-layer structure of outer shell protection and embedded insulation module, securely integrating two metal needles at a high position on the back of the handle. Its protruding structure provides clearance for instrument movement, the groove design protects the base of the metal needles, and the needle body penetrating the base forms a stable external interface. This design conceals and insulates the external power connection point outside the operating blind spot, not only avoiding cable interference during surgery but also ensuring electrical safety through multiple insulation barriers (gap and shell), greatly improving the overall safety of the instrument. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 and Figure 2 These are schematic diagrams showing the closed and open states of the bipolar electrocautery clamp provided in the embodiments of this application.

[0028] Figure 3 Exploded view of bipolar electrocoagulation clamp provided in the embodiments of this application.

[0029] Figure 4 and Figure 5 This is a schematic diagram of the clamp head connector provided in an embodiment of this application.

[0030] Figure 6 This is a schematic diagram of the upper clamp head structure provided in an embodiment of this application.

[0031] Figure 7 This is a schematic diagram of the structure of the conductive base provided in an embodiment of this application.

[0032] Figure 8 This is a schematic diagram of the insulating ring structure provided in an embodiment of this application.

[0033] Figure 9 and Figure 10 This is a schematic diagram of the upper clamp bar structure provided in an embodiment of this application.

[0034] Figure 11 A cross-sectional schematic diagram of the front part of the upper clamp bar and the lower clamp bar provided in the embodiments of this application.

[0035] Figure 12 and Figure 14 These are bottom and top views of the upper clamp rod provided in the embodiments of this application.

[0036] Figure 13 A cross-sectional view of the bipolar electrocoagulation clamp provided in an embodiment of this application.

[0037] Figure 15 This is a schematic diagram of the structure of the conductive core provided in an embodiment of this application.

[0038] Figure 16 and Figure 17 This is a schematic diagram of the structure of the insulating shell provided in an embodiment of this application.

[0039] Figure 18 and Figure 19 This is a schematic diagram of the structure of the lower clamp bar and the first hand grip provided in an embodiment of this application.

[0040] Figure 20 This is a cross-sectional schematic diagram of the interface box provided in an embodiment of this application.

[0041] Figure 21 and Figure 22 This is a schematic diagram of the structure of the metal needle receiving groove provided in an embodiment of this application.

[0042] Figure 23 This is a schematic diagram of the structure of the first handheld part provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0044] Some embodiments of this application provide a bipolar electrocautery clamp that separates the frequently replaced consumable part (clamp head) from the main body (clamp body), embeds the wires in the clamp bar, and insulates the clamp head from the clamp bar, which can improve the operability and safety of the equipment while reducing costs.

[0045] Please refer to Figure 1 , Figure 1This application provides a bipolar electrocautery clamp in some embodiments, the bipolar electrocautery clamp comprising: an upper clamp head 111, a lower clamp head 112, an upper conductive connection mechanism 200, a lower conductive connection mechanism 300, an insulating structure 400, a clamp body (including an upper clamp bar 500 and a lower clamp bar 600 hinged to each other), and an internal conductor ( Figure 1 (not shown in the image), interface box 810, first hand handle 700 and second hand handle 800.

[0046] The first hand handle 700 is movably connected to the rear of the upper clamp bar 500, serving as the operating handle.

[0047] The second hand handle 800 is fixedly connected to the rear of the lower clamp bar 600, serving as a fixed handle for gripping. For example... Figure 1 In some embodiments of this application, the interface box 810 disposed on the second hand handle 800 is fixedly connected to the first connecting rod 820 of the second hand handle 800 (the second hand handle 800 includes the first connecting rod 820). Figure 1 As shown, in some embodiments of this application, the second hand handle 800 further includes a first hand grip portion 830.

[0048] The upper conductive connection mechanism 200 is disposed at the front end of the upper clamp bar 500, and the upper conductive connection mechanism 200 and the upper clamp head 111 form a detachable electrical connection and mechanical connection.

[0049] The lower conductive connection mechanism 300 is disposed at the front end of the lower clamp bar 600, and the lower conductive connection mechanism 300 and the lower clamp head 112 form a detachable electrical connection and mechanical connection.

[0050] The built-in conductors include a first branch running through the upper clamp bar 500 and a second branch running through the lower clamp bar 600.

[0051] The interface box 810 is disposed on the second hand handle 800 and connected to the rear of the lower clamp bar 600. It contains two independent electrical connection terminals, one end of each terminal being connected to one end of the first branch and the other to one end of the second branch. For example, the electrical connection terminals can be implemented in various forms such as pin-shaped, sheet-shaped, or columnar. In some embodiments of this application, the electrical connection terminal is a metal pin.

[0052] It should be noted that, in the embodiments of this application, the upper clamp bar and the lower clamp bar have corresponding openings extending along their length on their sidewalls where they fit together. When the upper clamp bar and the lower clamp bar are closed, the openings allow the internal wiring spaces to communicate with each other. The first branch extends along the communicating space formed by the openings into the rear of the lower clamp bar and then reaches the bottom of the interface box. Insulation structures are provided between the upper conductive connection mechanism and the upper clamp bar, and between the lower conductive connection mechanism and the lower clamp bar, so that the upper clamp bar and the lower clamp bar remain insulated when the upper clamp head and the lower clamp head are energized.

[0053] like Figure 2 As shown, with Figure 1 The difference is that the jaws of the bipolar electrocautery pliers in this diagram are in the open position. The operation process includes: pushing the first hand handle forward to cause the upper jaw bar to move backward relative to the lower jaw bar, which simultaneously drives the upper jaw head to rotate, thereby opening both the upper and lower jaw heads.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the first hand handle is located below the second hand handle.

[0055] Figure 3 This is an exploded view of a bipolar electrocautery clamp according to some embodiments of this application, which exemplarily illustrates the composition of the relevant components. The following is in conjunction with... Figure 3 And related accompanying drawings illustrate the concept. Figure 1 or Figure 2 The implementation method of related components.

[0056] like Figure 3 As shown, the upper conductive connection mechanism 200 provided in some embodiments of this application includes: a clamp head connector 210, a conductive base 220, and a rotating conductive shaft 232.

[0057] The conductive base 220 is fixed to the front end of the upper clamp bar 500. For example, in some embodiments of this application, the tail section of the conductive base 220 is not in direct contact with the front section of the upper clamp bar 500, and the two surfaces are spaced apart as follows: Figure 3 The first insulating structure 410 (the installation position of the first insulating structure 410 can be referenced) Figure 1 Insulation structure 400).

[0058] The pliers head connector 210 is rotatably mounted on the conductive base 220. For example, in some embodiments of this application, one end of the pliers head connector is detachably connected to the upper pliers head, and the other end is rotatably connected to the conductive base 220, through which the upper pliers head can be in an open state.

[0059] The conductive shaft 232 is rotated to connect the conductive base 220 and the pliers head connector 210. For example, in some embodiments of this application, the conductive shaft 232 is rotated through holes provided on the conductive base 220 and the pliers head connector 210 to make an electrical and mechanical connection between the conductive base 220 and the pliers head connector 210.

[0060] It should be noted that in some embodiments of this application, the clamp head connector 210 is used to detachably mount the clamp head 111, and in some embodiments of this application, the conductive base 220 is electrically connected to the end of the wire of the first branch.

[0061] The following is combined with Figure 4 and Figure 5 The pliers connector provided in some embodiments of this application are illustrated by way of example.

[0062] like Figure 4 As shown, the clamp head connector includes: a first main metal block 211, a first front end metal structure 212, and a side wing structure 213.

[0063] A first front-end metal structure 212 extends forward from the front end of the first main body metal block 211 for connection with a detachable upper clamp head 111. For example, the first front-end metal structure 212 can be inserted into, for example, Figure 6 The first opening 111-2 on the upper clamp head 111 is shown.

[0064] Side wing structures 213 are distributed on both sides of the rear end of the first main metal block 211. Each side wing is an outwardly extending plate-like structure, and the plate-like structure is provided with a pair of conductive base connection holes 213-1 (e.g., Figure 4 (as shown) and a pair of lower conductive connection mechanism connection holes 213-2 (as shown) Figure 5 (As shown).

[0065] It should be noted that, in some embodiments of this application, a pair of conductive base connection holes 213-1 are used to pass through and hinge the rotating conductive shaft 232, so that the pliers head connection seat 210 is rotatably mounted on the conductive base 220, and the lower conductive connection mechanism connection hole 213-2 is used for insulating connection of the lower conductive connection mechanism 300.

[0066] like Figure 5 As shown, the clamp head connector 210 also includes a first protrusion 214.

[0067] The first protrusion 214 is located at the rear of the lower surface of the first main metal block 211.

[0068] like Figure 6 As shown, the upper clamp head includes: a head 111-1, a middle connecting section 111-5, and a tail latch 111-6.

[0069] The head 111-1 is an opening at the rear end (e.g., Figure 6 The cover structure of the first opening 111-2) has an internal contour of the head 111-1 that matches the first front metal structure 212, and the head can be used to fit and accommodate the first front metal structure 212.

[0070] The middle connecting section 111-5 is provided with two U-shaped grooves (for example, Figure 6 The first U-shaped groove 111-5-2 and the second U-shaped groove 111-5-1 are symmetrically arranged. The arrangement of the two U-shaped grooves can reduce the strength of the middle connecting section, so that the tail buckle fixedly connected to the head has a moderate range of elastic movement in the lateral direction. The tail buckle 1116-1 is provided with a card interface 116-1-1.

[0071] It should be noted that when the upper pliers head is fitted onto the pliers head connector, the first protrusion 214 engages with the locking interface 111-6-1 inside the tail buckle 111-6, achieving a detachable connection.

[0072] The following is combined with Figure 7 The conductive base of some embodiments of this application is illustrated by way of example.

[0073] like Figure 7 As shown, the conductive base in some embodiments of this application includes: a second main metal block 221 and two side metal blocks (e.g., Figure 7 The first side metal block 222-1 and the second side metal block 222-2) and the upper wiring connection block 223.

[0074] The front of the second main metal block 221 is provided with a pair of plier head connector holes 221-1, and the front of the second main metal block 221 can be inserted into the middle part of the two plate-shaped structures included in the side wing structure of the plier head connector. The plier head connector holes 221-1 are aligned with the conductive base connector holes 213-1 to realize the hinge connection between the conductive base and the plier head connector.

[0075] Two side metal blocks are symmetrically arranged on both sides of the tail of the second main metal block 221.

[0076] The upper wiring connection block 223 extends rearward from the central region of the tail of the second main metal block 221. The hollow part of the rear of the upper wiring connection block 223 can be inserted into the upper wiring cavity 270, and the upper wiring connection block 223 is insulated and fixedly connected to the upper clamp rod.

[0077] It should be noted that in some embodiments of this application, the upper wiring cavity 270 is used to lay the first branch, and the lower wiring cavity is used to lay the second branch. In some embodiments of this application, the insulation structure 400 (for example, the insulation structure 400 includes...) Figure 3 The first insulating structure 410 and the second insulating structure 420 are insulating rings (these insulating structures adopt, for example, Figure 8 The first insulating ring 411 shown is sleeved on the front end of the upper wiring connection block 223, and the first insulating ring 411 is located between the tail end face of the second main metal block and the side metal block and the front end face of the upper clamp bar to realize the surface-to-surface insulation between the conductive base and the upper clamp bar.

[0078] like Figure 7 As shown, in some embodiments of this application, the upper wiring connector is provided with a first upper clamp rod connection hole 223-1 and a second upper clamp rod connection hole 223-2.

[0079] like Figure 9 As shown, the upper clamp bar includes a first front insertion portion 510, and the bipolar electrocautery clamp also includes a first shaft 513 (as shown). Figure 11 (as shown) and the second axis 514 (as shown) Figure 11 As shown), the conductive base also includes a first insulating sleeve 516 (as shown). Figure 7 or Figure 11 (as shown) and the second insulating sleeve 517 (as shown) Figure 7 or Figure 11 (As shown). It can be understood that the conductive base and the upper clamp bar are fixed by metal shafts (and the first shaft and the second shaft). The insulating sleeves placed outside the two metal shafts can make the conductive base energized while the upper clamp bar is de-energized.

[0080] The first front insertion portion 510 is a cavity that matches the shape of the upper wiring connector 223. This cavity is used to accommodate the upper wiring connector 223, and the first front insertion portion 510 is provided with a first upper wiring connector 511 and a second upper wiring connector 512 (e.g., Figure 10 (As shown).

[0081] The first shaft 513 is inserted into the aligned first upper clamp rod connecting hole and the first upper wiring connecting block connecting hole, and the second shaft 514 is inserted into the aligned second upper clamp rod connecting hole and the second upper wiring connecting block connecting hole. The two shafts can achieve a fixed connection between the upper clamp rod and the conductive base.

[0082] The first insulating sleeve 516 is fitted onto the outer wall of the first shaft 513.

[0083] The second insulating sleeve 517 is fitted onto the outer wall of the second shaft 514.

[0084] It should be noted that in some embodiments of this application, the first insulating sleeve 516 and the second insulating sleeve 517 are both located between the corresponding shaft and the corresponding portion of the corresponding conductive base, and can be used to achieve shaft hole insulation between the conductive base and the upper clamp rod. For example... Figure 11As shown, the two insulating sleeves are used to prevent the shaft from contacting the conductive base, thereby achieving electrical isolation between the two. This prevents the transmission of electricity from the upper jaw to the upper jaw bar through the shaft, thus ensuring that the upper jaw is energized while the upper jaw bar is less energized or not energized at all.

[0085] In some embodiments of this application, the upper clamp bar further includes, sequentially connected along the length direction: a first middle section wiring portion 520 (e.g., ...). Figure 12 (as shown) and connecting rear 530 (as shown) Figure 9 (As shown). In some embodiments of this application, the relevant parts of the upper clamp bar can be integrally formed.

[0086] The first middle section of the wiring is connected to the tail of the first front end connector. The interior of the first middle section of the wiring is provided with the upper wiring cavity, and the first middle section of the wiring is provided with a second opening (e.g., Figure 12 The second opening 521 mentioned above.

[0087] The front end of the connecting rear portion 530 has a downwardly extending front surface extension 531, and the side of the connecting rear portion 530 is provided with a first hand handle connecting portion for hinged with the first hand handle (e.g., Figure 14 The first hand handle connecting part 534 is a groove shape and a connecting hole is provided in the groove.

[0088] It should be noted that in some embodiments of this application, the second opening is located on the lower surface of the first middle section of the wiring portion, allowing the upper wiring cavity to communicate with the outside through the second opening. When the upper clamp bar and the lower clamp bar are closed, the second opening and the corresponding opening portion of the lower clamp bar (e.g. Figure 18 The third opening 621 shown together forms a conductor passage channel. The front surface extension of this embodiment is provided with a channel, through which the conductor extends downward via the upper wiring cavity and communicates with the interface box provided at the rear of the lower clamp bar, so that the first branch conductor can pass through to the bottom of the first metal pin of the interface box.

[0089] The lower conductive connection mechanism described in some embodiments of this application includes: such as Figure 15 The conductive core shown, Figure 3 The mounting location of the conductive core 310 is shown. In some other embodiments of this application, the lower conductive connection mechanism includes: as... Figure 15 The conductive core shown and as Figure 16 The insulating shell shown is wrapped around the conductive core.

[0090] like Figure 15 As shown, the conductive core of some embodiments of this application includes, in sequence: a second front-end metal structure 311, a third main metal block 312, a first extension metal block 313, and a lower wiring connection block 314.

[0091] The second front-end metal structure 311 is a protrusion and is used to connect with the lower clamp head.

[0092] The upper part of the third main metal block 312 is provided with a snap-fit ​​connection component (such as...). Figure 15 The buckle connection component 312-1 shown is used, and the third main metal block is used to achieve a buckle connection with the corresponding component set at the front end of the lower clamp head.

[0093] The first extended metal block 313 is a block that extends rearward from the third main metal block, and the first extended metal block is provided with a first upper clamp rod insulating connection hole 313-1.

[0094] The lower wiring connector 314 extends rearward from the tail of the first extended metal block 313, and the hollow portion of the rear of the lower wiring connector can be inserted into the lower wiring cavity.

[0095] like Figure 16 As shown, the insulating housing 320 in some embodiments of this application includes: an open front portion 321, a contracted cavity portion 322, and an expanded cavity portion 333.

[0096] The front opening of the opening has a front slot to expose the second front end metal structure, and the front opening covers the sides and bottom of the third main body metal block.

[0097] The contraction cavity covers the first extended metal block, and the side wall of the contraction cavity is provided with a connection hole corresponding to the insulating connection hole of the first upper clamp rod (e.g., Figure 17 The second upper clamp rod insulating connection hole 322-1.

[0098] The expanded cavity covers the lower wiring connector block.

[0099] It should be noted that in some embodiments of this application, the conductive core is insulated and fixed to the lower clamp rod via the lower wiring connection block (see reference). Figure 18 The record determines the connection method of the fixed connection, and the insulating connection hole of the first upper clamp bar is used to pass through an insulating shaft to realize the insulating hinge between the upper clamp bar and the lower clamp bar.

[0100] like Figure 18 As shown, the lower clamp bar also includes, along its length, the following components connected in sequence: a second front end insertion part 610, a second middle section wiring part 620, a transition tail part 630, and a connecting tail part 640 (e.g., ...). Figure 19 (As shown).

[0101] The second front-end insertion part is provided with a cavity for accommodating and fixing the lower cable connecting block, and a first lower cable connecting block connecting hole 611 and a second lower cable connecting block connecting hole 612 for passing through the fixing shaft. The first lower cable connecting block connecting hole 611 is correspondingly provided with the first lower clamp bar connecting hole 314-1, and the third shaft 317 can pass through these two connecting holes (e.g., Figure 11 As shown), the corresponding second lower wiring connector hole 612 and the second lower clamp bar connector hole 314-2 are set accordingly, and the fourth shaft 318 can pass through these two connector holes (as shown). Figure 11 As shown, the upper clamp bar can be fixedly connected to the lower conductive connection mechanism 300 via the third and fourth axes or one axis. In some embodiments, a third insulating sleeve 314-3 can be fitted onto the outer wall of the third axis, and a fourth insulating sleeve 314-4 can be fitted onto the outer wall of the fourth axis. The insulating sleeves can prevent the lower clamp bar from carrying a charge.

[0102] The second middle section of the wiring section has a lower wiring cavity 271 inside, and the upper part of the second middle section of the wiring section has a third opening 621.

[0103] The transition tail 630 is a hollow cavity, and the transition tail 630 is used to guide the wires in the upper wiring cavity and the lower wiring cavity to the bottom of the interface box.

[0104] The upper plane of the connecting tail 640 is lower than the upper plane of the lower clamp bar. The connecting tail 640 is provided with a second upper and lower clamp bar hinge hole 641, and the second upper and lower clamp bar hinge hole 641 is used to hinge with the upper clamp bar.

[0105] like Figure 3 As shown, the interface box in some embodiments of this application includes: an outer shell 811 and an internal module 812.

[0106] The outer casing 811 is fixed to the outside of the first connecting rod on the upper part of the second hand handle, and the interior of the outer casing 811 forms a box-shaped receiving groove 811-2 (e.g., Figure 20 As shown), and the outer casing 811 is provided with a box connection hole 811-5 (as shown). Figure 3 As shown), the box body connection hole includes, for example... Figure 18 The first box connection hole 811-3 and the second box connection hole 811-4 are shown.

[0107] The internal module 812 is accommodated within the housing slot, and as... Figure 20 As shown, the internal module 812 includes: a first boss 812-3 (as shown in the figure). Figure 20 As shown), the second groove 812-1 (as shown) Figure 20 (as shown), base 812-6 (as shown) Figure 21 As shown), the first metal needle 812-4 (as shown) Figure 20(as shown) and the second metal needle 812-5 (as shown) Figure 20 (As shown).

[0108] The top surface of the first boss slides in contact with or has a gap with the lower surface of the tail end of the upper clamp rod.

[0109] The second groove is located at a lower position on one side of the second boss, and the first metal needle and the second metal needle are arranged parallel to each other in the groove.

[0110] The first metal needle and the second metal needle are vertically arranged, with their upper ends located within the second groove and their lower ends passing through the base and exposed (e.g., ...). Figure 21 As shown), and in some embodiments of this application, the wires of the first branch and the second branch are electrically connected to the lower ends of the first metal needle and the second metal needle, respectively, and the upper ends of the first metal needle and the second metal needle can be connected to an external power supply.

[0111] The base is located below the second boss and the second groove.

[0112] It should be noted that, in some embodiments of this application, the internal module is fixedly connected to the outer shell through the box connection hole, and an insulating gap is formed between the internal module and the outer shell (the internal module is a plastic insulating component).

[0113] like Figure 23 As shown, in some embodiments of this application, the connector head 730 of the connecting rod of the first hand handle, the second connecting rod 720, and the second grip portion 710 are provided. The connector head 730 is provided with a pair of upper connecting holes 731 and a pair of lower connecting holes 732. The upper connecting holes 731 are correspondingly provided with the connecting holes on the first hand handle connecting portion 534 of the upper clamp bar to achieve hinge connection with the upper clamp bar through a connecting shaft. The lower connecting holes 732 are correspondingly provided with the second upper and lower clamp bar hinge holes 641 of the lower clamp bar to achieve hinge connection with the lower clamp bar through another connecting shaft.

[0114] The following is combined with Figure 3 The connection methods of related components in some embodiments of this application are illustrated by way of example.

[0115] In some embodiments of this application, the upper clamp head 111 is snapped into connection with the clamp head connector 210, and the clamp head connector 210 is connected to the conductive base 220 by means of a rotating conductive shaft 232 (e.g., a metal shaft). The tail of the conductive base 220 is connected to one end of a wire through the upper wiring cavity 270, and the other end of the wire is connected to the lower end of the first metal needle to form a pole. The first metal needle is inserted into the wire.

[0116] The conductive base 220 is connected to the upper clamp bar 500, thus completing the connection of the upper body. The conductive base 220 and the upper clamp bar are fixed by two shafts (i.e., the first shaft and the second shaft mentioned above), and an insulating sleeve (i.e., the first insulating sleeve and the second insulating sleeve) is respectively fitted on the outer wall of the two shafts. There is a first insulating structure 410 between the conductive base 220 and the upper clamp bar 500, so that the clamp body will not become electrified even if the upper clamp head is electrified.

[0117] In the lower part, the lower jaw 112 is snapped into the conductive core 310 for conduction. The conductive core 310 (or metal part) is wrapped with an insulating shell 320 (or plastic part). The upper jaw 111 and the lower jaw 112 are rotatably connected by an insulating shaft 322-2 (located in the insulating connection hole of the second upper jaw bar and the insulating connection hole of the first upper jaw bar), ensuring that the lower jaw is metal conductive and the rest is externally insulated. The tail of the conductive core is connected to one end of a wire through the lower wiring cavity. The other end of the wire is connected to the lower end of the second metal needle to form a pole. The second metal needle is inserted into the wire.

[0118] The conductive core is connected to the lower clamp bar, thus completing the connection of the lower body. The conductive core and the lower clamp bar are fixed by two shafts (i.e., the third shaft and the fourth shaft), and the outer walls of the shafts are covered with insulating sleeves (i.e., the third insulating sleeve and the fourth insulating sleeve). There is a second insulating structure between the conductive core and the lower clamp bar, so that the lower clamp body will not become electrified even if the lower clamp head is electrified.

Claims

1. A bipolar coagulation forceps, characterized by, The bipolar electrocoagulation clamp includes: Upper jaw and lower jaw; The clamp body includes: The upper and lower clamp bars are hinged together. An upper conductive connection mechanism is provided at the front end of the upper clamp bar, and one end of the mechanism forms a detachable electrical and mechanical connection with the upper clamp head; A lower conductive connection mechanism is provided at the front end of the lower clamp bar, and one end of the lower clamp head forms a detachable electrical and mechanical connection. The built-in wire includes a first branch passing through the upper clamp bar and a second branch passing through the lower clamp bar, wherein one end of the first branch is electrically connected to the other end of the upper conductive connection mechanism, and one end of the second branch is electrically connected to the other end of the lower conductive connection mechanism. The first hand handle is movably connected to the rear of the upper clamp bar, serving as the operating handle; The second hand handle is fixedly connected to the rear of the lower clamp bar, serving as a fixed handle for gripping; An interface box is disposed on the second hand handle and connected to the rear of the lower clamp bar. It has two independent electrical connection terminals inside, wherein one end of the two electrical connection terminals is respectively connected to the other end of the first branch and the other end of the second branch. in: The upper clamp bar and the lower clamp bar have corresponding openings extending along the length direction on their side walls that fit together. When the upper clamp bar and the lower clamp bar are brought together, the wiring spaces inside the upper clamp bar and the lower clamp bar are connected to each other through the openings. The first branch extends into the rear of the lower clamp bar along the connecting space formed by the opening; Insulation structures are provided between the upper conductive connection mechanism and the upper clamp bar, and between the lower conductive connection mechanism and the lower clamp bar, so that the upper clamp bar and the lower clamp bar remain insulated when the upper clamp head and the lower clamp head are energized.

2. The bipolar electrocoagulation clamp as described in claim 1, characterized in that, The upper conductive connection mechanism includes: A conductive base, one end of which is fixed to the front end of the upper clamp rod; A clamp head connector is rotatably mounted on the other end of the conductive base; Rotate the conductive shaft to connect the conductive base to the clamp head connector; The pliers head connector is used for detachably mounting the upper pliers head.

3. The bipolar electrocoagulation clamp as described in claim 2, characterized in that, The clamp head connector includes: The first main metal block; A first front-end metal structure extends forward from the front end of the first main metal block and is used to connect with the detachable upper clamp head; Side wing structures are distributed on both sides of the rear end of the first main metal block. Each side wing is an outwardly extending plate-like structure, and the plate-like structure is provided with a pair of conductive base connection holes and a pair of lower conductive connection mechanism connection holes. The pair of conductive base connection holes are used to pass through the rotating conductive shaft, so that the pliers head connection seat can be rotatably mounted on the conductive base, and the lower conductive connection mechanism connection hole is used to insulately connect the lower conductive connection mechanism.

4. The bipolar electrocoagulation clamp as described in claim 3, characterized in that, The clamp head connector also includes: The first protrusion is located at the rear of the lower surface of the first main metal block; The upper clamp head includes: The head is a cover structure with an opening at the rear end, and its internal contour matches the first front-end metal structure, which is used to fit and accommodate the first front-end metal structure. The middle connecting section is equipped with two symmetrical U-shaped grooves; The tail buckle has a card slot; When the upper pliers head is fitted onto the pliers head connecting seat, the first protrusion engages with the snap-fit ​​interface in the tail buckle, achieving a detachable connection.

5. The bipolar electrocautery clamp as described in any one of claims 2-4, characterized in that, The conductive base includes: The second main metal block has a front portion that can be inserted into the middle part of the two plate-shaped structures and is provided with a pair of plier head connecting holes, wherein the plier head connecting holes are aligned with the conductive base connecting holes to achieve the hinge connection between the conductive base and the plier head connecting holes; Two side metal blocks are symmetrically arranged on both sides of the tail of the second main metal block; The upper wiring connection block extends rearward from the central area of ​​the tail of the second main metal block, and the hollow part at the rear can be inserted into the upper wiring cavity and is insulated and fixedly connected to the upper clamp rod. The insulating structure is an insulating ring, which is sleeved on the upper wiring connection block and located between the tail end face of the second main metal block and the side metal block and the front end face of the upper clamp rod, to achieve surface-to-surface insulation between the conductive base and the upper clamp rod.

6. The bipolar electrocautery clamp as described in claim 5, characterized in that, The upper wiring connector block is provided with a first upper clamp rod connection hole and a second upper clamp rod connection hole; The upper clamp bar includes: The first front insertion part is a cavity that matches the shape of the upper wiring connection block, used to accommodate the upper wiring connection block, and is provided with a first upper wiring connection block hole and a second upper wiring connection block connection hole. The bipolar electrocautery clamp also includes: The first shaft and the second shaft are respectively inserted into the aligned first upper clamp rod connecting hole and the first upper wiring connecting block hole, as well as the aligned second upper clamp rod connecting hole and the second upper wiring connecting block connecting hole, to achieve a fixed connection between the upper clamp rod and the conductive base; The conductive base also includes: The first insulating sleeve is fitted onto the outer wall of the first shaft; The second insulating sleeve is fitted onto the outer wall of the second shaft; The first insulating sleeve and the second insulating sleeve are both located between the corresponding shaft and the corresponding part of the conductive base, and are used to achieve shaft hole insulation between the conductive base and the upper clamp rod.

7. The bipolar electrocoagulation clamp as described in claim 6, characterized in that, The upper clamp bar also includes: The upper clamp bar also includes the following components connected sequentially along its length: The first middle section of the wiring section is connected to the tail of the first front end plug-in section, and has the upper wiring cavity inside with a first opening. The rear part is connected, the front end has a downwardly extending front surface extension, and the side is provided with a first hand handle connection part for hinged with the first hand handle. The first opening is located on the lower surface of the first middle section of the cable routing portion, allowing the upper cable routing cavity to communicate with the outside through the first opening. When the upper clamp bar and the lower clamp bar are closed, the first opening and the corresponding opening portion of the lower clamp bar together form a conductor passage channel. The front surface extension portion is provided with a channel, through which the upper cable routing cavity extends downward and communicates with the interface box located at the rear of the lower clamp bar, so that the first branch conductor can pass through to the bottom of the interface box.

8. The bipolar electrocoagulation clamp as described in any one of claims 1-7, characterized in that, The lower conductive connection mechanism includes: The conductive core comprises, in sequence: The second front metal structure is a protrusion used to connect with the lower clamp head; The third main metal block has a snap-fit ​​connection component on its upper part, which is used to snap-fit ​​connection with the corresponding component at the front end of the lower pliers. The first extended metal block is a block that extends rearward from the third main metal block and is provided with a first upper clamp rod insulating connection hole. The bottom wiring connector extends rearward from the tail of the first extending metal block, and the hollow portion at the rear can be inserted into the bottom wiring cavity; and / or An insulating outer shell, covering the conductive core, includes: The front opening has a slot on the front side to expose the second front end metal structure and to cover the sides and bottom of the third main body metal block; The constricted cavity covers the first extended metal block, and the side wall is provided with a through hole corresponding to the insulating connection hole of the first upper clamp rod. Expand the cavity to cover the lower wiring connection block; The conductive core is insulated and fixedly connected to the lower clamp rod through the lower wiring connection block, and the first upper clamp rod insulating connection hole is used to pass through an insulating shaft to achieve an insulated hinge between the upper clamp rod and the lower clamp rod.

9. The bipolar electrocoagulation clamp as described in claim 8, characterized in that, The lower clamp bar comprises the following components connected sequentially along its length: The second front end plug-in part is provided with a cavity for accommodating and fixing the lower cable connecting block, and a first lower cable connecting block connecting hole and a second lower cable connecting block connecting hole for passing through the fixing shaft. The second middle section of the wiring section has the lower wiring cavity inside and a second opening at the top; The transition tail section is a hollow cavity used to guide the upper wiring cavity and the lower wiring cavity toward the bottom of the interface. The tail section is provided with a second upper and lower clamp rod hinge hole for hinged connection with the upper clamp rod.

10. The bipolar electrocoagulation clamp as described in claim 9, characterized in that, The interface box includes: The outer shell is fixed to the outside of the first connecting rod on the upper part of the second hand handle, and an inner box receiving groove is formed with a box connection hole; An internal module, housed within the housing slot, includes: The top surface of the second protrusion is in sliding contact with or has a gap with the lower surface of the tail end of the upper clamp rod. The second groove is located at a lower position on one side of the second boss; The base is located below the second protrusion and the second groove; The first metal needle and the second metal needle are vertically arranged, with their upper ends located in the second groove and their lower ends passing through the base and exposed. The internal module is fixedly connected to the outer shell through the box connection hole, and a gap is formed between the internal module and the outer shell, wherein the gap is at least used for laying the tail sections of the first branch and the second branch.

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