Electrocoagulation forceps

Abstract

The present application provides an electrocoagulation forceps, comprising a base member; two forceps heads, both of which are connected to the base member, at least one of which can rotate relative to the base member, so that the two forceps heads can have a closed state and an open state that can be switched to each other; and a driving mechanism, the driving mechanism comprising a driving member and an actuator that are transmission-connected, both of which are slidably matched with the base member, and the sliding directions of the driving member and the actuator are opposite; the actuator is used to slide when the driving member slides relative to the base member to drive at least one forceps head to move, so that the two forceps heads can switch between an open state and a closed state. When the electrocoagulation forceps clamp tissue, the clamping position is accurate and reliable, and the success rate of the operation is high.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to an electrocoagulation forceps. Background Art

[0002] Electrocoagulation hemostasis is a commonly used hemostasis method in digestive and respiratory endoscopic surgeries. The electrocoagulation hemostasis instruments used under endoscopy include monopolar electrocoagulation hemostatic forceps, bipolar coagulation probes and other instruments. More often, monopolar electric biopsy forceps are used instead of monopolar electrocoagulation hemostatic forceps for hemostasis. There are also some flexible bipolar electrocoagulation forceps used in conjunction with endoscopy.

[0003] Research has found that existing electrocoagulation forceps have the following disadvantages:

[0004] The two clamp heads of the existing electrocoagulation forceps have poor accuracy in clamping position when clamping tissue. Summary of the invention

[0005] The object of the present invention is to provide an electrocoagulation forceps, which can improve the accuracy of the clamping position when clamping tissue, is not easy to cause the thermal effect position to shift, has good electrocoagulation effect, and has a high success rate of surgery.

[0006] The embodiment of the present invention is achieved as follows:

[0007] An embodiment of the present invention provides an electrocoagulation forceps, comprising:

[0008] Base parts;

[0009] Two pliers heads, both of which are connected to the base member, and at least one of the two pliers heads can rotate relative to the base member so that the two pliers heads can have a closed state and an open state that can be switched between each other;

[0010] And a driving mechanism, the driving mechanism includes a driving member and an actuator that are transmission-connected, the driving member and the actuator are both slidably matched with the base member, and the sliding directions of the driving member and the actuator are opposite; the actuator is used to slide when the driving member slides relative to the base member to drive at least one clamp head to move, so that the two clamp heads are switched between an open state and a closed state.

[0011] In an optional embodiment, the clamp head includes a connected clamp arm and a conductive clamp body, and the clamp arms of the two clamp heads are connected to the base member;

[0012] The actuator is used to drive at least one of the two clamp arms to rotate relative to the base member when sliding relative to the base member, so that the two conductive clamp bodies are switched between an open state and a closed state.

[0013] In an optional embodiment, at least one of the two clamp arms is an elastic arm, and the elastic arm is used to make the corresponding conductive clamp body generate a movement trend of switching from a closed state to an open state.

[0014] In an optional embodiment, the elastic arm is configured as a spring sheet.

[0015] In an optional embodiment, the actuator is configured as a sleeve, which is sleeved outside the base member, and the sleeve is used to drive at least one pliers head to move when sliding relative to the base member, so that the two pliers heads are switched between an open state and a closed state.

[0016] In an optional embodiment, the driving member is configured as a cable;

[0017] The base member is provided with a receiving channel and a first through hole communicating with the receiving channel; the base member is also provided with a steering structure;

[0018] The cable is inserted into the receiving channel, one end of the cable bypasses the steering structure and passes through the first through hole, and the portion of the cable outside the receiving channel is connected to the actuator;

[0019] When the portion of the cable located in the storage channel slides relative to the base member along a first direction under the action of an external force, the cable abuts against the steering structure to make the portion of the cable located outside the storage channel move along a second direction opposite to the first direction, thereby driving the actuator to slide relative to the base member along the second direction.

[0020] In an optional embodiment, the diverting structure is a portion of the hole wall of the first through hole.

[0021] In an optional embodiment, the steering structure is a steering rod, and the steering rod is connected to the base member.

[0022] In an optional embodiment, there are multiple cables, and there are multiple first through holes, and the multiple cables correspond one-to-one to the multiple first through holes, and one end of each cable bypasses the steering structure and passes through the corresponding first through hole, and the portion of each cable located outside the storage channel is connected to the actuator.

[0023] In an optional embodiment, the actuator is provided with a second through hole, and a groove is provided on the outer side of the actuator away from the base member, and the groove is connected to the second through hole; the part of the cable located outside the storage channel passes through the second through hole and is stored in the groove.

[0024] The beneficial effects of the embodiments of the present invention are:

[0025] In summary, this embodiment provides an electrocoagulation forceps that can be used in conjunction with an endoscope. When in use, the endoscope is used to transport the forceps head of the electrocoagulation forceps to the position to be treated. At this time, the two forceps heads are in an open state, and the driving member is operated to drive the actuator to slide relative to the base member. When the actuator slides, it drives one of the two forceps heads to move, so that the two forceps heads are close to each other, thereby clamping the tissue located between the two forceps heads, and then electrocoagulation treatment can be performed. In the process of the two forceps heads clamping the tissue, since the two forceps heads can be accurately located at the position of the tissue to be clamped with the cooperation of the endoscope, the tissue is located between the two forceps heads, and when the operation of clamping the tissue is performed, the base member is used as a basic member, and the position of the base member remains unchanged, so that the positions of the two forceps heads remain unchanged, and it is only necessary to operate the driving member to drive the actuator to slide relative to the base member to close the two forceps heads. That is, in the process of closing the two forceps heads, the two forceps heads will not retreat relative to the tissue, thereby not changing the clamping position of the forceps heads. The accuracy of the clamping position is high, and the tissue to be treated can be electrocoagulated more accurately, the electrocoagulation effect is good, and the success rate of the operation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of the closed state of the electrocoagulation forceps according to an embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the electrocoagulation forceps in an open state according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the exploded structure of the electrocoagulation forceps in the open state according to an embodiment of the present invention;

[0030] Figure 4 is a schematic cross-sectional structural diagram of an electrocoagulation forceps according to an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of a base member according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic structural diagram of a support tube according to an embodiment of the present invention;

[0033] Figure 7 It is a structural schematic diagram of a mounting head according to an embodiment of the present invention;

[0034] Figure 8A schematic diagram of the matching structure of the driving member and the steering structure according to an embodiment of the present invention;

[0035] Fig. 9 Schematic diagram of the structure of the executive component of an embodiment of the present invention.

[0036] icon:

[0037] 100-base member; 110-support tube; 111-first end; 112-second end; 113-avoidance gap; 114-avoidance groove; 1141-second abutting side; 115-storage channel; 120-mounting head; 121-mounting hole; 122-positioning groove; 130-spring tube; 140-penetrating channel; 150-first through hole; 160-steering structure; 200-clamp head; 210-clamp arm; 211-avoidance opening; 220-conductive clamp body; 230-insulating layer; 231-first abutting side; 300-driving mechanism; 310-driving member; 311-first cable; 312-crimping tube; 313-second cable; 320-actuator; 321-second through hole; 322-inner recess; 3221-groove; 400-conducting wire. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Unless otherwise specified, in the following embodiments, the first direction is the direction indicated by the arrows ab in the figures, and the second direction is the direction indicated by the arrow ba in the figures.

[0045] See also Figure 1-Figure 9 This embodiment provides an electrocoagulation forceps, when the electrocoagulation forceps clamps tissue to perform electrocoagulation and other treatments on the tissue, the position of the forceps head 200 clamping the tissue is accurate and reliable, the treatment effect is good, the safety is high, and the success rate of the operation is high.

[0046] It should be noted that the coagulation forceps may be single-stage coagulation forceps or bipolar coagulation forceps. This embodiment is described by taking the bipolar coagulation forceps as an example.

[0047] See also Figure 1-Figure 3 In this embodiment, the electrocoagulation forceps comprises:

[0048] Base member 100;

[0049] Two pliers heads 200, both of which are connected to the base member 100, and at least one of the two pliers heads 200 can rotate relative to the base member 100, so that the two pliers heads 200 can have a closed state and an open state that can be switched between each other;

[0050] And a driving mechanism 300, the driving mechanism 300 includes a driving member 310 and an actuator 320 which are connected in a transmission manner, the driving member 310 and the actuator 320 are both slidably matched with the base member 100, and the sliding directions of the driving member 310 and the actuator 320 are opposite; the actuator 320 is used to slide when the driving member 310 slides relative to the base member 100, so as to drive at least one clamp head 200 to move, so that the two clamp heads 200 are switched between an open state and a closed state. In other words, the driving member 310 and the actuator 320 form a linkage structure, the driving member 310 and the actuator 320 move at the same time or are stationary at the same time; when the driving member 310 slides relative to the base member 100 along a first direction, the driving member 310 drives the actuator 320 to slide relative to the base member 100 along a second direction opposite to the first direction.

[0051] When the electrocoagulation forceps provided in this embodiment are used, the forceps heads 200 of the electrocoagulation forceps can be transported to the position to be treated by using an endoscope. In the initial state, the two forceps heads 200 are in an open state. The driving member 310 is operated to slide relative to the base member 100 in a first direction, thereby driving the actuator 320 to slide relative to the base member 100 in a second direction opposite to the first direction, that is, the actuator 320 slides close to one of the two forceps heads 200. When the actuator 320 slides, it abuts against at least one of the two forceps heads 200 and drives the corresponding forceps head 200 to move, so that the two forceps heads 200 are close to each other, and the two forceps heads 200 are switched from an open state to a closed state, thereby clamping the tissue between the two forceps heads 200, and then performing electrocoagulation and other treatments.

[0052] In the process of clamping tissue with the two forceps 200, the two forceps 200 can be accurately located at the position of the tissue to be clamped with the cooperation of the endoscope, so that the tissue is located between the two forceps 200, and when the operation of clamping tissue is performed, the base member 100 serves as the basic member, and the position of the base member 100 remains unchanged. Since the forceps 200 are connected to the base member 100, the positions of the two forceps 200 located on the base member 100 remain unchanged. It is only necessary to operate the driving member 310 to drive the actuator 320 to slide relative to the base member 100, and the two forceps 200 are driven by the actuator 320 to rotate relative to the base member 100 to close. That is, during the closing process of the two forceps heads 200, the forceps heads 200 only rotate relative to the base member 100 around the position connected to the base member 100, and will not move forward or backward relative to the tissue, will not change the clamping position of the forceps heads 200, and will not pull the tissue in the process of clamping the tissue. The clamping position is highly accurate, and surgical operations such as electrocoagulation can be performed on the treated tissue more accurately, with a good electrocoagulation effect and a high surgical success rate.

[0053] See also Figure 5In this embodiment, optionally, the base member 100 includes a support tube 110, a mounting head 120 and a spring tube 130. The mounting head 120 is plugged into one end of the support tube 110 and is fixedly connected to the support tube 110. The mounting head 120 and the support tube 110 are relatively fixed in the circumferential direction of the support tube 110, that is, the two will not rotate relative to each other around the axis of the support tube 110, and the position is more stable. The spring tube 130 is connected to one end of the support tube 110 away from the mounting head 120.

[0054] See also Figure 6 Further, the support tube 110 includes a first end 111 and a second end 112. Two avoidance notches 113 are arranged on the tube wall of the support tube 110. The opening side of each avoidance notch 113 is located on the end surface where the first end 111 is located. The two avoidance notches 113 are evenly spaced and arranged in the circumferential direction of the support tube 110. In other words, the angle between the two avoidance notches 113 is 180 degrees. Two avoidance grooves 114 are also arranged on the outer tube wall of the support tube 110. The two avoidance grooves 114 are connected to the two avoidance notches 113 in a one-to-one correspondence, that is, one end of the avoidance groove 114 is connected to the side of the avoidance notch 113 away from the first end 111. The avoidance groove 114 can be an arc-shaped groove.

[0055] See also Figure 7 Furthermore, a mounting hole 121 is provided in the middle of the mounting head 120. Two positioning grooves 122 are provided on the outer circumferential surface of the mounting head 120, and the two second grooves are evenly spaced and arranged in the circumferential direction of the mounting head 120. In other words, the angle between the two mounting grooves is 180 degrees. Each positioning groove 122 extends along the extension direction of the mounting hole 121, and the two ends of each positioning groove 122 extend to the two end surfaces of the mounting head 120 in the extension direction of the mounting hole 121, that is, each positioning groove 122 is a through groove. When the mounting head 120 is inserted into the first end 111 of the support tube 110, the mounting hole 121 is coaxial with the tube cavity of the support tube 110, and the tube wall of the support tube 110 blocks the notch of the mounting groove, so that the tube wall of the support tube 110 and the outer circumferential surface of the mounting head 120 form a penetration channel 140 for penetrating the wire 400 at the location of the mounting groove. At the same time, there is a distance between the end surface of the mounting head 120 away from the first end 111 of the support tube 110 and the side of the avoidance gap 113 away from the first end 111, that is, the mounting head 120 and the support tube 110 jointly define the first through hole 150 at the position of the mounting gap.

[0056] It should be noted that the tube cavity of the support tube 110 can be called a receiving channel 115 , and the first through hole 150 is in communication with the receiving channel 115 .

[0057] Furthermore, a steering structure 160 is installed in the support tube 110. The steering structure 160 can be a steering rod. The cross-sectional shape of the steering rod is circular, or at least part of the cross-sectional outer contour of the steering rod is arc-shaped. The cross-sectional shape of the steering rod refers to the cross-sectional shape perpendicular to the extension direction of the steering rod. The extension direction of the steering rod is perpendicular to the extension direction of the support tube 110. The steering rod is located between the first end 111 of the support tube 110 and the connection between the avoidance groove 114 and the avoidance notch 113.

[0058] In other embodiments, the deflection structure 160 is configured as a portion of the hole wall of the first through hole 150 , that is, a side wall that keeps the notch 113 away from the first end 111 .

[0059] Optionally, the support tube 110 and the mounting head 120 can be fixedly connected by screws. Specifically, when the mounting head 120 is plugged into the first end 111 of the support tube 110, screws are used to pass through the support tube 110 and the mounting head 120 at the same time to fix the mounting head 120 and the support tube 110, and the number of screws can be set as needed.

[0060] It should be understood that the function of the spring tube 130 is to bend in the endoscope channel along with the bending of the endoscope forceps channel, so as to smoothly reach the treatment position, that is, the length of the spring tube 130 is fixed. During the operation, the spring tube 130 is used as a basic component to keep its position fixed, that is, to ensure that the positions of the support tube 110 and the mounting head 120 are fixed, and finally to ensure that the position of the forceps head 200 is fixed.

[0061] Please combine Figure 1 , Figure 2 and Figure 3 In this embodiment, optionally, the clamp head 200 includes a clamp arm 210 and a conductive clamp body 220, the clamp body is connected to the clamp arm 210, the clamp arm 210 is an elastic arm, and the clamp arm 210 is inserted into the mounting hole 121 on the mounting head 120. The clamp arm 210 is used to make the corresponding conductive clamp body 220 generate a movement trend from a closed state to an open state. In other words, when the actuator 320 does not apply force to the clamp arm 210 to make the clamp arm 210 in a closed state, the two clamp arms 210 open under the action of their own elastic force and are in an open state. This state can also be called the initial state of the electrocoagulation forceps. In the initial state, the two clamp arms 210 are open and roughly in a "V" shape, which is convenient for clamping tissue.

[0062] Optionally, the clamp arm 210 may be a metal spring.

[0063] Optionally, each clamp arm 210 is provided with an avoidance opening 211 for passing the wire 400 .

[0064] Furthermore, the pliers head 200 further includes an insulating layer 230, which is coated on the outside of the pliers arm 210 and is located between the pliers arm 210 and the conductive pliers body 220. Optionally, the insulating layer 230 is connected to the pliers arm 210 and the conductive pliers body 220 by injection molding. Furthermore, a concave-convex structure is provided on both the pliers arm 210 and the conductive pliers body 220. When the insulating layer 230 is injection molded between the pliers arm 210 and the conductive pliers body 220, the insulating layer 230 is engaged with the concave-convex structure, which not only plays the role of insulating the pliers arm 210 and the conductive pliers body 220, but also plays the role of fixing the pliers arm 210 and the conductive pliers body 220, and the structure is firm and reliable.

[0065] It should be noted that, in this embodiment, the structures of the two clamp heads 200 are set to be completely the same. Obviously, in other embodiments, the structures of the two clamp heads 200 may not be set to be completely the same, for example, one clamp arm 210 in the two clamp heads 200 may be set to be an elastic arm.

[0066] In this embodiment, the two clamp arms 210 of the two clamp heads 200 are both configured as elastic arms, and each clamp arm 210 is opened at a certain angle, so that the clamping range is wider and the use is more flexible and reliable.

[0067] Obviously, in other embodiments, the clamp arm 210 can be rotatably connected to the installation head 120 via a rotating shaft, and a torsion spring is provided on the outer sleeve of the rotating shaft, which is connected to the rotating shaft and the installation head 120 at the same time. The torsion spring is used to make the corresponding conductive clamp body 220 generate a movement trend from a closed state to an open state. Similarly, the clamp arm 210 can automatically reset after the external force applied to the clamp arm 210 by the actuator 320 is canceled.

[0068] In this embodiment, optionally, the electrocoagulation forceps also include two wires 400, which are passed through the storage channel 115 of the spring tube 130 and the support tube 110, and pass out from the first through hole 150 connected to the storage channel 115. After the wires 400 pass out from the first through hole 150, they pass through the avoidance opening 211 on the clamp arm 210 and are connected to the corresponding conductive clamp body 220.

[0069] See also Figure 8 And combined Figure 4, please refer to the figure. In this embodiment, optionally, the driving member 310 includes two first cables 311, a crimping tube 312, and a second cable 313. One end of the two first cables 311 is gathered and connected to the crimping tube 312, and the crimping tube 312 is connected to the second cable 313. The second cable 313 is inserted into the spring tube 130. The ends of the two first cables 311 away from the crimping tube 312 bypass the steering structure 160 and pass through the first through hole 150 of the support tube 110. The number of turns of the first cable 311 around the steering structure 160 is not limited, and can be one turn, multiple turns, or less than one turn, as long as the first cable 311 is in contact with part of the steering structure 160. After passing through the first through hole 150, the first cable 311 is located in the avoidance groove 114, and the first cable 311 is connected to the actuator 320. Due to the structural design of the avoidance groove 114 , the avoidance groove 114 can accommodate the first cable 311 , thereby preventing the first cable 311 from affecting the assembly of the actuator 320 and the support tube 110 . In the initial state, that is, when the two pliers heads 200 are in the open state, the connection position of the first cable 311 and the actuator 320 is farther away from the pliers head 200 than the contact position of the first cable 311 and the steering structure 160, that is, the contact position of the first cable 311 and the steering structure 160 is located between the connection position of the first cable 311 and the actuator 320 and the pliers head 200. In this way, when force is applied to the second cable 313 to drive the first cable 311 to slide relative to the support tube 110 along the first direction through the crimping tube 312, the first cable 311 contacts the steering structure 160, so that the movement direction of the part of the first cable 311 located outside the storage channel 115 changes, that is, the first cable 311 located outside the storage channel 115 will move in a second direction opposite to the first direction, thereby driving the actuator 320 to slide in the second direction, and the actuator 320 approaches the pliers arm 210, and after pressing the pliers arm 210, the open pliers arm 210 is closed.

[0070] See also Fig. 9 In this embodiment, optionally, the actuator 320 is configured as a sleeve, which is sleeved outside the support tube 110. The sleeve is used to simultaneously drive the two clamp arms 210 to move when sliding relative to the support tube 110, so that the two clamp heads 200 are switched from an open state to a closed state.

[0071] Optionally, two second through holes 321 and two inner recesses 322 are provided on the sleeve, and the two inner recesses 322 correspond to the two second through holes 321 respectively. The outer concave surface of the inner recess 322 forms a groove 3221, one end of the groove 3221 is connected to the second through hole 321, and the other end of the groove 3221 extends to the end surface of the sleeve away from the second through hole 321. The inner convex surface of the inner recess 322 is slidably matched with the avoidance groove 114 on the support tube 110, and the inner recess 322 is slidably matched with the avoidance groove 114, which not only plays the role of guiding the sleeve, but also has other functions of limiting the relative rotation of the sleeve and the support tube 110. The part of the first cable 311 located outside the receiving channel 115 passes through the sleeve from the second through hole 321 and is located in the groove 3221, and the first cable 311 is fixedly connected to the groove wall of the groove 3221. The first pull cable 311 does not protrude from the notch of the groove 3221 , so the first pull cable 311 is not likely to come into contact with or rub against the endoscope forceps channel, and is not likely to damage the endoscope forceps channel.

[0072] It should be noted that when the second cable 313 is pulled to drive the portion of the first cable 311 located in the receiving channel 115 to move in the first direction, the portion of the first cable 311 located outside the receiving channel 115 slides in the second direction, driving the actuator 320 to slide in the second direction, and the actuator 320 approaches the clamp arm 210, so that the clamp arm 210 switches from the initial open state to the closed state. When the external force is removed, the clamp arm 210 automatically opens under the elastic force of the clamp arm 210 itself, driving the actuator 320 to move in the first direction, and the portion of the first cable 311 located in the receiving channel 115 slides in the second direction, and the clamp arm 210 returns to the initial open state.

[0073] It should be understood that when the clamp arm 210 is in an open state, the actuator 320 is located at a first position, and when the clamp arm 210 is in a closed state, the actuator 320 is located at a second position. In order to ensure that the first position and the second position of the actuator 320 are stable, two limit structures can be set to limit the position of the actuator 320.

[0074] For example, in order to ensure the accuracy of the first position of the actuator 320, the side of the avoidance groove 114 away from the first end 111 of the support tube 110 is set to have a spacing with the second end 112 of the support tube 110, and the side of the avoidance groove 114 away from the first end 111 is the first abutting side 231. When the actuator 320 is in the first position, the inner concave portion 322 of the actuator 320 abuts against the first abutting side 231, thereby limiting the actuator 320 from sliding in the first direction. In order to ensure the accuracy of the second position of the actuator 320, the side of the insulating layer 230 provided on the clamp arm 210 close to the support tube 110 is set as the second abutting side 1141. When the actuator 320 is in the second position, the end face of the actuator 320 abuts against the second abutting side 1141, thereby limiting the actuator 320 from sliding in the second direction. In other words, the initial position and the terminal position of the actuator 320 are determined, the stroke of the actuator 320 is determined, and the actuator 320 operates stably and reliably. At the same time, when the forceps head 200 is used to clamp tissue, when the actuator 320 moves to the position against the insulating layer 230, the actuator 320 cannot continue to move. At this time, the operator receives feedback that the actuator 320 cannot continue to move. The operator can clearly know that the forceps head 200 has been clamped in place, thereby improving the safety of the operation.

[0075] In other embodiments, the driving mechanism 300 may include a gear and a rack (not shown), for example, a first rack, a gear, and a second rack, the first rack being connected to the cable, the gear being rotationally matched with the support tube 110, the first rack and the second rack being meshed with the gear, and the second rack being connected to the actuator 320. By pulling the cable, the first rack moves in the first direction, the gear rotates, and the second rack moves in the second direction opposite to the first direction, that is, the actuator 320 moves in the second direction.

[0076] In other embodiments, the electrocoagulation forceps further include a handle mechanism (not shown), and both the base member 100 and the driving member 310 are connected to the handle mechanism, and the handle mechanism is used to control the driving member 310 to slide relative to the base member 100 .

[0077] The electrocoagulation forceps provided in this embodiment have a forceps head 200 that is not easy to move back when clamping tissue, and the clamping position is not easy to change, thereby improving the clamping accuracy and the success rate of the operation.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrocoagulation forceps, characterized in that: include: Base parts; Two pliers heads, both of which are connected to the base member, and at least one of the two pliers heads can rotate relative to the base member so that the two pliers heads can have a closed state and an open state that can be switched between each other; and a driving mechanism, the driving mechanism comprising a driving member and an actuator which are transmission-connected, the driving member and the actuator both being slidably matched with the base member, and the sliding directions of the driving member and the actuator are opposite; the actuator is used to slide when the driving member slides relative to the base member, so as to drive at least one of the pliers heads to move, so that the two pliers heads are switched between the open state and the closed state; The clamp head comprises a connected clamp arm and a conductive clamp body, and the clamp arms of the two clamp heads are both connected to the base member; The actuator is used to drive at least one of the two clamp arms to rotate relative to the base member when sliding relative to the base member, so that the two conductive clamp bodies are switched between the open state and the closed state; At least one of the two clamp arms is an elastic arm, and the elastic arm is used to make the corresponding conductive clamp body generate a movement trend of switching from the closed state to the open state; The elastic arm is configured as a spring sheet; The actuator is configured as a sleeve, the sleeve is sleeved outside the base member, and the sleeve is used to drive at least one of the pliers to move when sliding relative to the base member, so that the two pliers are switched between the open state and the closed state; The driving member is configured as a cable; The base member is provided with a receiving channel and a first through hole communicating with the receiving channel; the base member is also provided with a steering structure; The cable is inserted into the receiving channel, one end of the cable bypasses the steering structure and passes through the first through hole, and the portion of the cable outside the receiving channel is connected to the actuator; When the portion of the cable located in the storage channel slides relative to the base member along a first direction under the action of an external force, the cable abuts against the steering structure to make the portion of the cable located outside the storage channel move along a second direction opposite to the first direction, thereby driving the actuator to slide relative to the base member along the second direction.

2. The electrocoagulation forceps according to claim 1, characterized in that: The deflection structure is a portion of the hole wall of the first through hole.

3. The electrocoagulation forceps according to claim 1, characterized in that: The steering structure is a steering rod, and the steering rod is connected to the base member.

4. The electrocoagulation forceps according to claim 1, characterized in that: There are multiple cables, and there are multiple first through holes. The multiple cables correspond to the multiple first through holes one by one, and one end of each cable bypasses the steering structure and passes through the corresponding first through hole, and the part of each cable located outside the storage channel is connected to the actuator.

5. The electrocoagulation forceps according to claim 1, characterized in that: The actuator is provided with a second through hole, and the outer side of the actuator away from the base is provided with a groove, and the groove is communicated with the second through hole; the part of the cable located outside the receiving channel passes through the second through hole and is received in the groove.

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