Clamp head mechanism and bipolar electric treatment device

Abstract

The invention discloses a clamp head mechanism and a bipolar electric treatment device. The bipolar electric treatment device comprises the clamp head mechanism (10), a conductive traction part (30), an electric connection part and an operation part, the clamp head mechanism (10) comprises a clamp cup assembly (1) and a clamp head assembly (2), wherein the clamp cup assembly (1) comprises a first clamp cup (11) and a second clamp cup (12) which are oppositely arranged; the clamp cup seat (2) is configured to support the clamp cup assembly (1); the insulation supporting piece (3) is arranged between the first clamp cup (11) and the second clamp cup (12), and when the first clamp cup (11) and the second clamp cup (12) execute closing operation, the insulation supporting piece (3) separates the first clamp cup (11) from the second clamp cup (12). Wherein, on the same projection plane, the projection part of the insulating support member (3) along the first direction covers the projection of the first clamp cup (11) and / or the second clamp cup (12) along the first direction, and the first direction is perpendicular to the short axis direction and the long axis direction of the first clamp cup (11) and / or the second clamp cup (12).

Description

A clamp head mechanism and bipolar electrical treatment device

[0001] Cross-references

[0002] This application claims priority to Chinese application No. 202311108438.7 filed on August 30, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention relates to the field of medical device technology, and in particular to a clamp head mechanism and a bipolar electrical treatment device. Background Art

[0004] During hemostasis, bipolar electrotherapy devices output high-frequency electrical energy between the two cups, heating the clamped mucosal tissue, causing it to dehydrate and coagulate. The cups of existing bipolar electrotherapy devices are typically constructed entirely of conductive metal, with one end electrically connected to a conductive traction member. This allows the conductive traction member to simultaneously power the cups while driving them open and close. This means the entire cup acts as a conductive structure for electrocoagulation, but the actual location of the cups is typically a localized position away from one end of the conductive traction member. Since the cups are conductive as a whole, direct contact between the two cups could result in a short circuit, with current flowing directly through the cups instead of the mucosal tissue, preventing the thermal effect needed to heat the mucosal tissue and achieve hemostasis. Furthermore, the hinged connection between the two cups places the ends of the cups too close to the conductive traction member. This could allow current to form a loop through other conductive media beyond the cup ends, preventing the current from flowing through the clamped mucosal tissue and causing current to flow in unintended locations, leading to device damage and energy loss.

[0005] Therefore, it is desired to provide a forceps head mechanism and a bipolar electrical treatment device, by providing an insulating support member on the forceps cup so that the two forceps cups can be separated when performing a closing operation; or by insulating the forceps handle from the conductive traction part and electrically connecting the forceps head to the conductive traction part, so as to avoid the current from being energized in an unexpected position when the two forceps cups clamp the tissue, thereby ensuring the hemostatic effect.

[0006] Summary of the Invention

[0007] One or more embodiments of the present specification provide a clamp head mechanism, which includes: a clamp cup assembly, which includes a first clamp cup and a second clamp cup arranged opposite to each other; a clamp cup seat, which is constructed to support the clamp cup assembly; an insulating support member, which is arranged between the first clamp cup and the second clamp cup, and when the first clamp cup and the second clamp cup perform a closing operation, the insulating support member separates the first clamp cup and the second clamp cup; wherein, on the same projection plane, the projection of the insulating support member along the first direction partially covers the projection of the first clamp cup and / or the second clamp cup along the first direction, and the first direction is perpendicular to the short axis direction and the long axis direction of the first clamp cup and / or the second clamp cup.

[0008] One or more embodiments of the present specification provide another pliers head mechanism, which includes: a pliers cup assembly, which includes a first pliers cup and a second pliers cup arranged opposite to each other; wherein, the first pliers cup includes a first pliers head and a first pliers handle, and the second pliers cup includes a second pliers head and a second pliers handle; a pliers cup seat, which is constructed to support the pliers cup assembly; a connecting structure, which includes a first connecting portion and a second connecting portion, wherein the first connecting portion is constructed to electrically connect the first pliers head, the second pliers head and the conductive traction portion, and the second connecting portion is constructed to insulate the first pliers handle, the second pliers handle and the conductive traction portion.

[0009] One or more embodiments of the present specification provide a bipolar electrical treatment device, which includes the clamp head mechanism, a conductive traction part, an electrical connection part and an operating part as claimed in the preceding claims, wherein the distal end of the conductive traction part is at least partially electrically connected to the clamp head mechanism, and the proximal end of the conductive traction part is electrically connected to the electrical connection part; the operating part is electrically connected to the electrical connection part, and the operating part is at least configured to control the opening or closing of the clamp head mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0011] FIG1 is an exemplary schematic diagram of a distal end of a forceps mechanism clamping tissue according to Embodiment 1 of the present specification;

[0012] FIG2 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism shown in FIG1 when it is opened;

[0013] 3 is an axonometric view of a clamp cup assembly and an insulating support member 1 of a clamp head mechanism according to the first embodiment of the present specification;

[0014] 4 is a cross-sectional view of the clamp cup assembly and the insulating member support member of the clamp head mechanism shown in FIG3 ;

[0015] 5 is an axonometric view of the clamp cup assembly and the insulating support member of the clamp head mechanism shown in FIG3 ;

[0016] 6 is an axonometric view of the clamp cup assembly, insulating support member 1, and baffle of the clamp head mechanism according to the first embodiment of this specification;

[0017] 7 is an axonometric view of the coupling between the clamp cup assembly and the insulating support member 2 of the clamp head mechanism according to the first embodiment of this specification;

[0018] FIG8 is a cross-sectional view of the coupling between the clamp cup assembly and the insulating support member 2 of the clamp head mechanism shown in FIG7 ;

[0019] 9 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism according to the second embodiment of this specification when it is opened;

[0020] FIG10 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism shown in FIG9;

[0021] FIG11 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism shown in FIG9 when closed;

[0022] 12 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism according to the third embodiment of this specification when closed;

[0023] FIG13 is a cross-sectional view of the first clamp cup assembly of the clamp head mechanism shown in FIG12 when it is opened;

[0024] FIG14 is a second cross-sectional view of the clamp cup assembly of the clamp head mechanism shown in FIG12 when it is opened;

[0025] 15 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism according to the fourth embodiment of this specification when it is opened;

[0026] FIG16 is a schematic structural diagram of the connection between the clamp cup and the conductive traction portion of the clamp head mechanism shown in FIG15;

[0027] FIG17 is a cross-sectional view of FIG16;

[0028] FIG18 is a schematic structural diagram of the clamp handle of the clamp head mechanism shown in FIG15;

[0029] FIG19 is a schematic diagram of FIG18 from another angle;

[0030] FIG20 is a cross-sectional view of the clamp head of the clamp head mechanism shown in FIG15;

[0031] FIG21 is a schematic structural diagram of the clamp head of the clamp head mechanism shown in FIG15;

[0032] FIG22 is a schematic structural diagram of the connection between the pliers head and the pliers handle of the pliers head mechanism shown in FIG15;

[0033] 23 is a schematic structural diagram of the clamp cup assembly of the clamp head mechanism according to the fifth embodiment of this specification when closed;

[0034] FIG24 is a schematic structural diagram of the connection between the pliers head and the pliers handle of the pliers head mechanism shown in FIG23;

[0035] FIG25 is a schematic structural diagram of a bipolar electrical treatment device according to some embodiments of this specification;

[0036] FIG26 is a schematic structural diagram of the conductive traction portion when the clamp cup assembly is opened;

[0037] FIG27 is a schematic structural diagram of the conductive traction portion when the clamp cup assembly is closed;

[0038] FIG28 is a schematic structural diagram of the bending portion shown in FIG26 or FIG27;

[0039] FIG29 is a cross-sectional view of the bipolar electrical treatment device shown in FIG25;

[0040] FIG30 is an enlarged schematic diagram of point A in FIG29;

[0041] FIG31 is an enlarged schematic diagram of point B in FIG29;

[0042] FIG32 is a schematic diagram of the structure of an electrode holder according to some embodiments of this specification;

[0043] FIG33 is a schematic structural diagram of the second electrode holder shown in FIG32;

[0044] FIG34 is another cross-sectional view of the bipolar electrical treatment device shown in FIG25;

[0045] FIG35 is a schematic structural diagram of an electrode holder shown in other embodiments of this specification;

[0046] FIG36 is a schematic diagram of the structure of an operating unit according to some embodiments of this specification;

[0047] FIG37 is a schematic structural diagram of the handle shown in FIG36;

[0048] FIG38 is a schematic structural diagram of the sliding finger ring shown in FIG36 . DETAILED DESCRIPTION

[0049] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0050] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0051] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0052] FIG1 is an exemplary schematic diagram of the distal end of the forceps mechanism clamping tissue according to the first embodiment of the present specification; FIG2 is a structural schematic diagram of the forceps cup assembly of the forceps mechanism shown in FIG1 when it is opened.

[0053] Some embodiments of the present disclosure provide a clamp head mechanism. As shown in Figures 1 and 2, the clamp head mechanism 10 includes a clamp cup assembly 1, a clamp cup seat 2, and an insulating support member 3. In some embodiments, the clamp cup assembly 1 includes a first clamp cup 11 and a second clamp cup 12 disposed opposite each other. The clamp cup seat 2 is configured to support the clamp cup assembly 1. The insulating support member 3 is disposed between the first clamp cup 11 and the second clamp cup 12. When the first clamp cup 11 and the second clamp cup 12 perform a closing operation, the insulating support member 3 separates the first clamp cup 11 and the second clamp cup 12.

[0054] The forceps cup assembly 1 is a structural component of the forceps head mechanism 10 for clamping wound tissue 200 (such as mucosal tissue) and coagulating the wound tissue 200 when current passes through it. In some embodiments, the forceps cup assembly 1 may include two components that cooperate with each other to clamp the wound tissue.

[0055] The first forceps cup 11 is a component of the forceps cup assembly 1. The second forceps cup 12 is another component of the forceps cup assembly 1. In some embodiments, the first forceps cup 11 and the second forceps cup 12 are positioned relative to each other on the forceps cup base 2. An operator can control the first forceps cup 11 and the second forceps cup 12 to perform a closing operation to clamp the wound tissue.

[0056] In some embodiments, at least a portion of the first forceps cup 11 and the second forceps cup 12 can be designed as a flat plate to provide a larger clamping surface, thereby ensuring clamping stability. It should be noted that the first forceps cup 11 and the second forceps cup 12 can also be designed into any other feasible structural shape that can meet the requirements of clamping wound tissue.

[0057] The clamp cup seat 2 is a structural component of the clamp head mechanism 10 for supporting the clamp cup assembly 1. The material of the clamp cup seat 2 includes but is not limited to stainless steel, tungsten, titanium, titanium nitride, etc.

[0058] In some embodiments, the forceps cup assembly 1 can be connected to the forceps cup base 2 in various ways, including but not limited to hinged connection.

[0059] In some embodiments, the structural shape of the forceps cup seat 2 can be designed accordingly based on the structural shape and arrangement of the forceps cup assembly 1. For example, when the proximal end of the forceps cup assembly 1 is cross-distributed and hinged to the forceps cup seat 2, the forceps cup seat 2 can include a cavity structure for the proximal end of the forceps cup assembly 1 to move.

[0060] The insulating support member 3 is a structural member used to support and isolate objects and has insulating properties. The insulating support member 3 is made of insulating materials, including but not limited to ceramic, alumina, zirconia, etc.

[0061] In some embodiments, the insulating support member 3 can be designed in a variety of structural shapes. For example, the cross-sectional shape of the insulating support member 3 can include a polygonal, circular, elliptical, annular, rectangular, T-shaped, L-shaped, X-shaped, or a combination thereof. In some embodiments, the cross-sectional shape is perpendicular to the first direction. For more information about the first direction, please refer to Figure 2 and its related description.

[0062] In some embodiments, the insulating support member 3 can be arranged only on the first clamp cup 11 or the second clamp cup 12, or can be arranged on the first clamp cup 11 and the second clamp cup 12 at the same time, so as to separate the first clamp cup 11 and the second clamp cup 12 when the first clamp cup 11 and the second clamp cup 12 perform a closing operation to avoid a short circuit between the two clamp cups.

[0063] In some embodiments, the insulating support member 3 can be disposed on the first clamp cup 11 and / or the second clamp cup 12 in various ways, such as by clamping, bonding, etc.

[0064] In some embodiments, on the same projection plane, the projection of the insulating support member 3 along the first direction partially overlaps the projection of the first clamp cup 11 and / or the second clamp cup 12 along the first direction. The first direction is perpendicular to the short axis and long axis of the first clamp cup 11 and / or the second clamp cup 12. In some embodiments, the first direction can be represented by the X-direction shown in Figure 2. The projection along the first direction refers to the projection onto any reference plane perpendicular to the first direction; this reference plane is the projection plane.

[0065] The projection of the insulating support member 3 along the first direction partially covering the first clamp cup 11 and / or the second clamp cup 12 can be understood as: on the same projection plane perpendicular to the first direction, the projection of the first clamp cup 11 and / or the second clamp cup 12 is not completely covered by the projection of the insulating support member 3. For convenience of explanation, the area of ​​the first clamp cup 11 and / or the second clamp cup 12 that is covered by the projection of the insulating support member 3 along the first direction can be referred to as the insulating area, and the uncovered area is referred to as the conductive area. In some embodiments, the insulating area can be represented by s1 as shown in Figure 2, and the conductive area can be represented by s2 as shown in Figure 2.

[0066] In some embodiments, the insulating support member 3 can be arranged at any feasible position of the first clamp cup 11 and / or the second clamp cup 12 (such as the distal end or middle area of ​​the first clamp cup 11 and / or the second clamp cup 12, and can be partially or completely placed between the first clamp cup 11 and the second clamp cup 12, etc.), and can ensure that the projection portion of the insulating support member 3 along the first direction covers the first clamp cup 11 and / or the second clamp cup 12 to ensure that the two clamp cups will not directly contact and cause a short circuit.

[0067] For more information about the clamp head mechanism, please refer to the relevant description in the following text (such as Figures 3 to 24).

[0068] The clamp head mechanism provided in some embodiments of the present specification adopts a clamp cup assembly, a clamp cup seat and an insulating support, and the insulating support is set between the first clamp cup and the second clamp cup. When the first clamp cup and the second clamp cup perform a closing operation, the first clamp cup and the second clamp cup can be separated to avoid direct contact between the two clamp cups and cause a short circuit, resulting in damage to the instrument and energy loss, and it is also beneficial to ensure the coagulation effect of the clamp head mechanism.

[0069] In some embodiments, on the same projection plane, the ratio of the projection area of ​​the insulating support 3 along the first direction to the projection area of ​​the first clamp cup 11 and / or the second clamp cup 12 along the first direction ranges from 0.03 to 0.4, for example, from 0.1 to 0.23.

[0070] Based on the above description, the projection area of ​​the insulating support 3 along the first direction represents the area of ​​the insulating region s1 , and the projection area of ​​the first clamp cup 11 and / or the second clamp cup 12 along the first direction represents the total area of ​​the insulating region s1 and the conductive region s2 .

[0071] In some embodiments, on the same projection plane, the ratio of the projected area of ​​the insulating support member 3 along the first direction to the projected area of ​​the first clamp cup 11 and / or the second clamp cup 12 along the first direction can also range from 0.1 to 0.15. In some embodiments, the ratio of the projected area of ​​the insulating support member 3 along the first direction to the projected area of ​​the first clamp cup 11 and / or the second clamp cup 12 along the first direction can also range from 0.1 to 0.12. For example, s1 / (s1+s2)=0.1.

[0072] By limiting the ratio of the projection area of ​​the insulating support 3 along the first direction to the projection area of ​​the first forceps cup 11 and / or the second forceps cup 12 along the first direction on the same projection plane within a preferred range, it is possible to ensure that the forceps cup assembly 1 does not cause a short circuit problem while ensuring that the first forceps cup 11 and / or the second forceps cup 12 can have a larger area of ​​direct contact with the wound tissue, thereby improving the coagulation efficiency.

[0073] In some embodiments, in the short axis direction of the first forceps cup 11 and / or the second forceps cup 12, the insulating support 3 can be set at any position without completely covering the first forceps cup 11 and / or the second forceps cup 12, so that the first forceps cup 11 and / or the second forceps cup 12 have areas in their long axis direction that can directly contact the wound tissue, thereby ensuring that the first forceps cup 11 and / or the second forceps cup 12 can achieve a coagulation effect even if they clamp a small amount of wound tissue.

[0074] Furthermore, to achieve a better coagulation effect, the ratio of the dimension of the insulating support member 3 along the short axis of the first clamp cup 11 and / or the second clamp cup 12 to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along its short axis can be limited. As shown in FIG2 , the ratio of the dimension of the insulating support member 3 along the second direction to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the second direction is no greater than 0.27. The second direction is the short axis of the first clamp cup 11 and / or the second clamp cup 12.

[0075] In some embodiments, the second direction can be represented by the Y direction shown in Figure 2. The size of the insulating support 3 along the second direction can be represented by l1 in Figure 2, and the size of the first clamp cup 11 and / or the second clamp cup 12 along the second direction can be represented by l′1 in Figure 2.

[0076] In some embodiments, the ratio of the dimension l1 of the insulating support member 3 along the second direction to the dimension l′1 of the first clamp cup 11 and / or the second clamp cup 12 along the second direction may be no greater than 0.18. In some embodiments, the ratio of the dimension l1 of the insulating support member 3 along the second direction to the dimension l′1 of the first clamp cup 11 and / or the second clamp cup 12 along the second direction may be no greater than 0.23. For example, l1 = 0.4 mm, L′1 = 2.2 mm.

[0077] By limiting the ratio of the dimension l1 of the insulating support 3 along the second direction to the dimension L′1 of the first forceps cup 11 and / or the second forceps cup 12 along the second direction within a preferred range, it is possible to fully avoid short circuits between the two forceps cups when the forceps cup assembly 1 clamps the wound tissue, and at the same time, the electrocoagulation area can be concentrated, which is beneficial to increase the electrocoagulation efficiency and improve the coagulation effect.

[0078] In some embodiments, as shown in FIG2 , the distance between the insulating support member 3 and the first clamp cup 11 and / or the second clamp cup 12 along the second direction is no less than 0.95 mm. The distance between the insulating support member 3 and the first clamp cup 11 and / or the second clamp cup 12 along the second direction refers to the distance between the edges of the insulating support member 3 and the edges of the first clamp cup 11 and / or the second clamp cup 12 on the same side in the second direction. In some embodiments, the distance between the insulating support member 3 and the first clamp cup 11 and / or the second clamp cup 12 along the second direction can be represented by l2.

[0079] In some embodiments, the distance between the insulating support member 3 and both sides of the first clamp cup 11 and / or the second clamp cup 12 along the second direction may be no less than 0.9 mm. In some embodiments, the distance between the insulating support member 3 and both sides of the first clamp cup 11 and / or the second clamp cup 12 along the second direction may be no less than 0.85 mm. For example, l2 = 0.95 mm.

[0080] In some embodiments of the present specification, by limiting the distance between the insulating support 3 and the first forceps cup 11 and / or the second forceps cup 12 on both sides along the second direction within a preferred range, that is, the insulating support 3 is arranged in the middle area of ​​the first forceps cup 11 and / or the second forceps cup 12, the stability of the forceps cup assembly 1 when clamping the wound tissue can be ensured, and at the same time, when the first forceps cup and the second forceps cup perform the closing operation, it can further ensure that the two forceps cups will not directly contact each other, thereby ensuring the coagulation effect of the forceps head mechanism.

[0081] FIG3 is an axonometric view of the clamp cup assembly and the insulating support member 1 of the clamp head mechanism according to the first embodiment of the present specification.

[0082] In some embodiments, as shown in FIG3 , the ratio of the dimension of the insulating support member 3 along the third direction to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the third direction is not less than 0.23. The third direction is the long axis direction of the first clamp cup 11 and / or the second clamp cup 12. In some embodiments, the third direction can be represented by the Z direction shown in FIG2-3 . The dimension of the insulating support member 3 along the third direction can be represented by L1 in FIG3 , and the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the third direction can be represented by L′1 in FIG3 .

[0083] In some embodiments, the ratio of the dimension of the insulating support member 3 along the third direction to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the third direction can be no less than 0.33. In some embodiments, the ratio of the dimension of the insulating support member 3 along the third direction to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the third direction can be no less than 0.5. For example, L1 = 0.7, L′1 = 3.

[0084] In some embodiments of the present specification, the ratio of the size of the insulating support member 3 along the third direction to the size of the first forceps cup 11 and / or the second forceps cup 12 along the third direction is limited within a preferred range to ensure that the size of the insulating support member 3 along the third direction can avoid a short circuit between the two forceps cups when the forceps cup assembly 1 clamps more wound tissue.

[0085] FIG4 is a cross-sectional view of the engagement of a clamp cup assembly and an insulating member support member of the clamp head mechanism shown in FIG3 .

[0086] In some embodiments, as shown in FIG4 , the minimum support height of the insulating support member 3 ranges from 0.4 mm to 0.7 mm. The support height of the insulating support member 3 refers to the distance that can separate the first clamp cup 11 and / or the second clamp cup 12 when the insulating support member 3 is set on the inner surface of the first clamp cup 11 and / or the second clamp cup 12 (not installed in the installation groove). In some embodiments, the support height of the insulating support member 3 can be represented by h1 in FIG4 , and the minimum support height of the insulating support member 3 can be represented by h 1min To express.

[0087] It is worth noting that the minimum support height range of the insulating support member 3 can be determined according to the thickness of the wound tissue. In some embodiments, the minimum support height range of the insulating support member 3 can also be 0.4mm to 0.6mm. In some embodiments, the minimum support height range of the insulating support member 3 can also be 0.5mm to 0.6mm. For example, h 1min =0.4mm.

[0088] By limiting the minimum support height of the insulating support 3 within a preferred range, it can protrude from the inner surface of the first forceps cup 11 and / or the second forceps cup 12. When the forceps cup assembly 1 clamps more wound tissue, it can not only ensure the stability of the clamped wound tissue, but also fully ensure that the insulating support 3 can separate the first forceps cup 11 and the second forceps cup 12 to avoid a short circuit between the two forceps cups and ensure the coagulation effect of the forceps head mechanism.

[0089] In some embodiments, as shown in Figure 4, the support height of the insulating support member 3 decreases from the distal end to the proximal end. For more information about the support height of the insulating support member, please refer to the relevant description above.

[0090] In some embodiments, the thickness of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 increases from the distal end to the proximal end, where the distal end refers to the end away from the operator and the proximal end refers to the end close to the operator.

[0091] The thickness of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 refers to the dimension of the portion of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 in the first direction. For example, when the insulating support member 3 includes second protruding teeth 31 and second grooves 32 alternately distributed along the third direction, the thickness of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 is the tooth top height of the second protruding teeth 31. In some embodiments, the thickness of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 can be represented by h2 in Figure 4.

[0092] As can be seen from Figures 1 and 4 , the support height of the insulating support member 3 decreases from the distal end to the proximal end, allowing for better fitment of the forceps cup assembly 1. Furthermore, the thickness of the inner surface of the insulating support member 3 protruding from the first forceps cup 11 and / or the second forceps cup 12 increases from the distal end to the proximal end. This allows the proximal end of the insulating support member 3 to not only better grip the wound tissue when the forceps cup assembly 1 is clamped, but also provides a larger accommodation space.

[0093] In some embodiments, as shown in Figures 1-4 , the inner surface of the first forceps cup 11 and / or the second forceps cup 12 includes first protruding teeth 111 and first grooves 112 alternately distributed along the third direction, with each first protruding tooth 111 and first groove 112 configured to extend along the second direction. The insulating support member 3 includes second protruding teeth 31 corresponding to at least a portion of the first protruding teeth 111 and second grooves 32 corresponding to at least a portion of the first grooves 112, with the second protruding teeth 31 protruding from the surface of the first protruding teeth 111.

[0094] The first protruding teeth 111 are tooth-like structures provided on the inner surface of the first forceps cup 11 and / or the second forceps cup 12. The first grooves 112 are groove structures provided on the inner surface of the first forceps cup 11 and / or the second forceps cup 12. The first protruding teeth 111 can be designed in a variety of structural shapes, including but not limited to straight teeth, helical teeth, spiral teeth, etc.

[0095] In some embodiments, the inner surface of the first forceps cup 11 and / or the second forceps cup 12 may include a plurality of spaced first protruding teeth 111. The plurality of first protruding teeth 111 may have the same or different structural shapes and tooth widths. Since the interval between two adjacent first protruding teeth 111 is the first groove 112, the plurality of first grooves 112 may also have the same or different contour shapes and groove depths.

[0096] The second protruding teeth 31 are tooth-like structures provided on the surface of the insulating support member 3. The second grooves 32 are groove structures provided on the surface of the insulating support member 3. In some embodiments, the second protruding teeth 31 are provided in a manner similar to the first protruding teeth 111, and the second grooves 31 are provided in a manner similar to the first grooves 1. For example, the second protruding teeth 31 and the second grooves 32 are also alternately distributed along the third direction, and each second protruding tooth 31 and second groove 32 is configured to extend along the second direction. For another example, the second protruding teeth 31 are provided corresponding to at least a portion of the first protruding teeth 111, and the second grooves 32 are provided corresponding to at least a portion of the first grooves 112.

[0097] It should be noted that the second protruding tooth 31 and its corresponding first protruding tooth 111 may have the same or different structural shapes and tooth widths, and the second groove 32 and its corresponding first groove 112 may have the same or different profile shapes and groove depths. For example, the second groove 32 may be deeper than the corresponding first groove 112.

[0098] Furthermore, in order to avoid current concentration, the tooth surfaces of the first protruding teeth 111 and the second protruding teeth 31 may be designed to be flat, and anti-slip patterns may be added on the tooth surfaces.

[0099] In some embodiments of the present specification, by arranging first protruding teeth and first grooves alternately distributed along a third direction on the inner surface of the first forceps cup and / or the second forceps cup, and correspondingly arranging second protruding teeth and second grooves on the surface of the insulating support member, and the second protruding teeth protrude from the surface of the first protruding teeth, the contact force between the two forceps cups and the wound tissue can be increased when the forceps cup assembly clamps the wound tissue, so as to stably clamp the wound tissue.

[0100] In some embodiments, the insulating support member 3 is disposed on the surface of the first protruding tooth 111 and the first groove 112. In some embodiments, the insulating support member 3 can be disposed on the surface of the first protruding tooth 111 and the first groove 112 by bonding, clamping, or the like.

[0101] In some embodiments, as shown in FIG3 , the inner surface of the first clamp cup 11 and / or the second clamp cup 12 further includes a mounting groove 113 , and the insulating support member 3 is disposed in the mounting groove 113 .

[0102] The mounting groove 113 is a groove structure for mounting the insulating support member 3. The contour shape of the mounting groove 113 can be adapted to the contour shape of the insulating support member 3, such as a cylindrical shape, a long strip shape, etc.

[0103] In some embodiments, the mounting groove 113 may be provided on the first clamp cup 11 or the second clamp cup 12 , or may be provided on both the first clamp cup 11 and the second clamp cup 12 for mounting the insulating support 3 .

[0104] In some embodiments, the insulating support member 3 can be fixed in the mounting groove 113 by glue dispensing or interference crimping, thereby achieving connection stability between the insulating support member 3 and the mounting groove 113.

[0105] In some embodiments, the insulating support member 3 can also be arranged in the mounting groove 113 in other ways. Figure 5 is an axonometric view of the clamp cup assembly and the insulating support member 1 of the clamp head mechanism shown in Figure 3; Figure 6 is an axonometric view of the clamp cup assembly, the insulating support member 1, and the baffle of the clamp head mechanism shown in Example 1 of this specification. As an example only, as shown in Figures 5 and 6, the insulating support member 3 is a T-shaped insulating support member, which includes a vertically connected tooth groove portion 3001 and a fixed portion 3002. Among them, the tooth groove portion 3001 is arranged along the third direction, and the fixed portion 3002 is arranged along the second direction. When the insulating support member 3 is arranged in the mounting groove 113, a pressing piece 114 can be further used to cover the fixed portion 3002 of the T-shaped insulating support member, and the two ends of the pressing piece 114 along the second direction are fixedly connected to the first clamp cup 11 and / or the second clamp cup 12 (such as welding, etc.) to further ensure the connection stability between the insulating support member 3 and the mounting groove 113.

[0106] In some embodiments of the present specification, by providing a mounting groove on the inner surface of the first clamp cup and / or the second clamp cup and providing an insulating support member in the mounting groove, the connection stability between the insulating support member and the first clamp cup and / or the second clamp cup can be ensured while separating the first clamp cup and the second clamp cup.

[0107] FIG7 is an isometric view of the coupling of the clamp cup assembly and the insulating support member 2 of the clamp head mechanism according to the first embodiment of the present specification; FIG8 is a cross-sectional view of the coupling of the clamp cup assembly and the insulating support member 2 of the clamp head mechanism shown in FIG7 . In some embodiments, as shown in FIG7-8 , the insulating support member 3 includes a support column 33 , wherein the distance from the center of the support column 33 to the distal end of the first clamp cup 11 and / or the second clamp cup 12 is less than the distance from the center of the support column 33 to the proximal end of the first clamp cup 11 and / or the second clamp cup 12 .

[0108] The support column 33 refers to a columnar structure used to support and isolate objects and has insulation properties. In some embodiments, the support column 33 can be a structural form of the insulating support member 3.

[0109] The distance from the center of the support column 33 to the distal end of the first forceps cup 11 and / or the second forceps cup 12 refers to the distance between the geometric center of the support column 33 and the distal end of the first forceps cup 11 and / or the second forceps cup 12. In some embodiments, the distance from the center of the support column 33 to the distal end of the first forceps cup 11 and / or the second forceps cup 12 can be represented by H1 in FIG. 7 .

[0110] The distance from the center of the support column 33 to the proximal end of the first forceps cup 11 and / or the second forceps cup 12 is the distance between the geometric center of the support column 33 and the proximal end of the first forceps cup 11 and / or the second forceps cup 12. In some embodiments, the distance from the center of the support column 33 to the proximal end of the first forceps cup 11 and / or the second forceps cup 12 can be represented by H2 in FIG. 7 .

[0111] In some embodiments, the ratio of the distance from the center of the support column 33 to the distal end of the first clamp cup 11 and / or the second clamp cup 12 to the distance from the center of the support column 33 to the proximal end of the first clamp cup 11 and / or the second clamp cup 12 ranges from 0.2 to 0.43.

[0112] In some embodiments, the ratio of the distance from the center of the support column 33 to the distal end of the first forceps cup 11 and / or the second forceps cup 12 to the distance from the center of the support column 33 to the proximal end of the first forceps cup 11 and / or the second forceps cup 12 can also be in the range of 0.25 to 0.3. In some embodiments, the ratio of the distance from the center of the support column 33 to the distal end of the first forceps cup 11 and / or the second forceps cup 12 to the distance from the center of the support column 33 to the proximal end of the first forceps cup 11 and / or the second forceps cup 12 can also be in the range of 0.28 to 0.3. For example, H1 = 0.5, H2 = 2.5.

[0113] In some embodiments of the present specification, by limiting the distance from the center of the support column to the distal end of the first clamp cup and / or the second clamp cup, and the distance from the center of the support column to the proximal end of the first clamp cup and / or the second clamp cup within a preferred range, that is, it is equivalent to setting the support column at the distal end of the first clamp cup and / or the second clamp cup, which not only effectively avoids short circuit between the two clamp cups, but also helps to expand the electrocoagulation area and improve the coagulation or hemostasis efficiency.

[0114] In some embodiments, as shown in FIG8 , the distance that the support column 33 protrudes from the inner surface of the first forceps cup 11 and / or the second forceps cup 12 ranges from 0.05 mm to 0.2 mm. In some embodiments, the distance that the support column 33 protrudes from the inner surface of the first forceps cup 11 and / or the second forceps cup 12 can be represented by d1 in FIG8 .

[0115] In some embodiments, the distance that the support column 33 protrudes from the inner surface of the first forceps cup 11 and / or the second forceps cup 12 can also range from 0.12 mm to 0.18 mm. In some embodiments, the distance that the support column 33 protrudes from the inner surface of the first forceps cup 11 and / or the second forceps cup 12 can also range from 0.13 mm to 0.16 mm. For example, d1 = 0.15 mm.

[0116] It can be understood that by limiting the distance that the support column 33 protrudes from the inner surface of the first forceps cup 11 and / or the second forceps cup 12 to a preferred range, which is equivalent to ensuring the distance between the first forceps cup 11 and the second forceps cup 12 when they are closed, it can effectively avoid a short circuit between the two forceps cups when the forceps cup assembly clamps the wound tissue, thereby ensuring the hemostatic effect of the forceps head mechanism.

[0117] In some embodiments, as shown in FIG. 1 , when the first forceps cup 11 and the second forceps cup 12 perform a closing operation, the minimum distance between the first forceps cup 11 and the second forceps cup 12 is in the range of 0.1 mm to 0.2 mm.

[0118] The minimum spacing between the first and second cups 11, 12 refers to the shortest distance between the inner surfaces of the first and second cups 11, 12. As previously mentioned, the first and second cups 11, 12 are disposed opposite each other. Therefore, when the first and second cups 11, 12 are closed, the minimum spacing between the first and second cups 11, 12 can be the distance d1 that the insulating support member 3 protrudes from the inner surface of the first and / or second cups 11, 12.

[0119] In some embodiments, when the first forceps cup 11 and the second forceps cup 12 are closed, the minimum spacing between the first forceps cup 11 and the second forceps cup 12 may be in the range of 0.12 mm to 0.18 mm. In some embodiments, when the first forceps cup 11 and the second forceps cup 12 are closed, the minimum spacing between the first forceps cup 11 and the second forceps cup 12 may be in the range of 0.13 mm to 0.16 mm. For example, the minimum spacing may be 0.15 mm.

[0120] It can be understood that by limiting the minimum spacing range between the first forceps cup 11 and the second forceps cup 12 when they are closed to the priority range, a short circuit between the two forceps cups can be effectively avoided when the forceps cup assembly clamps the wound tissue, thereby ensuring the hemostatic effect of the forceps head mechanism.

[0121] In some embodiments, as shown in FIG. 1 , when the first forceps cup 11 and the second forceps cup 12 perform a closing operation, the distance between the first forceps cup 11 and the second forceps cup 12 increases from the distal end to the proximal end.

[0122] The distance between the first forceps cup 11 and the second forceps cup 12 refers to the distance between the inner surface of the first forceps cup 11 and the inner surface of the second forceps cup 12. As previously mentioned, the support height of the insulating support member 3 decreases from the distal end to the proximal end along the third direction. Therefore, when the first forceps cup 11 and the second forceps cup 12 are closed, the distance between the first forceps cup 11 and the second forceps cup 12 increases from the distal end to the proximal end. This not only prevents the two forceps cups from directly contacting each other and causing a short circuit, but also allows the proximal end of the forceps cup assembly 1 to accommodate more or thicker wound tissue, thereby providing coagulation and hemostasis for the wound tissue.

[0123] In some embodiments, the inner surfaces of the first clamp cup 11 and the second clamp cup 12 are at least partially provided with a conductive area, that is, the inner surfaces of the first clamp cup 11 and the second clamp cup 12 may be partially or fully conductive.

[0124] In some embodiments, the circumferential surfaces of the first and second forceps cups 11, 12 are at least partially provided with a conductive area. The circumferential surfaces of the first and second forceps cups 11, 12 may include distal surfaces, side surfaces (as shown in FIG. 7 ), and top surfaces of the first and second forceps cups 11, 12.

[0125] In some embodiments, the peripheral side surfaces of the first clamp cup 11 and the second clamp cup 12 can be partially conductive or fully conductive. For example, when the cross-section (cross-section perpendicular to the first direction) of the first clamp cup 11 and the second clamp cup 12 is a polygonal shape (such as a rectangle), the distal surface of the first clamp cup 11 and the second clamp cup 12 can be conductive or one or more side surfaces other than the distal surface can be conductive. For another example, when the cross-section of the first clamp cup 11 and the second clamp cup 12 is a non-polygonal shape (such as an ellipse), the arc segment surface (distal surface) of the first clamp cup 11 and the second clamp cup 12 can be conductive or the straight segment surface (side surface) can be conductive. It is worth noting that the above examples are for illustration only and do not limit the cross-sectional shape of the first clamp cup 11 and the second clamp cup 12.

[0126] By providing conductive areas on at least part of the inner surface and peripheral surface of the first forceps cup 11 and the second forceps cup 12, the forceps head mechanism 10 can have functions such as clamping coagulation, lateral coagulation, distal point perming and multi-directional electrocoagulation, thereby improving the practicality of the forceps head mechanism 10.

[0127] Figure 9 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Example 2 of this specification when it is open; Figure 10 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Figure 9; Figure 11 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Figure 9 when it is closed.

[0128] In some embodiments, as shown in Figures 9-11 , the inner surfaces of the first and second forceps cups 11, 12 include a first clamping region S1 and a second clamping region S2 distributed along a third direction. The first clamping region S1 is located at the distal end, and the second clamping region S2 is located at the proximal end. The first and second clamping regions S1, S2 include first protruding teeth 111 and first grooves 112. For more information about the third direction, please refer to the relevant description above (see Figure 2 ).

[0129] In the first clamping area S1, the first protruding tooth 111 of one of the first forceps cup 11 and the second forceps cup 12 is aligned with the first groove 112 of the other. In the second clamping area S2, the first protruding tooth 111 of one of the first forceps cup 11 and the second forceps cup 12 is aligned with the first protruding tooth 111 of the other. For example, in the first clamping area S1, the first protruding tooth 111 of the first forceps cup 11 and the first groove 112 of the second forceps cup 12 are aligned; the first groove 112 of the first forceps cup 11 and the first protruding tooth 111 of the second forceps cup 12 are aligned. For another example, in the second clamping area S2, the first protruding tooth 111 of the first forceps cup 11 and the first protruding tooth 111 of the second forceps cup 12 are aligned; the first groove 112 of the first forceps cup 11 and the first groove 112 of the second forceps cup 12 are aligned.

[0130] The first clamping area S1 is the distal clamping area of ​​the first and second clamping cups 11 and 12. The second clamping area S2 is the proximal clamping area of ​​the first and second clamping cups 11 and 12. In some embodiments, the dimension ratio of the first and second clamping areas S1 and S2 along the third direction can be 3:7, 4:6, or other ratios. The dimension ratio of the first and second clamping areas S1 and S2 along the third direction refers to the ratio of the lengths of the line segments of the central axes of the first and second clamping cups 11 and 12 within the first and second clamping areas S1 and S2.

[0131] In some embodiments, the first protruding teeth 111 and the first grooves 112 in the first clamping area S1 and the second clamping area S2 are alternately distributed along the third direction. It should be noted that the structural shapes of the first protruding teeth 111 and the first grooves 112 in the first clamping area S1 and the first protruding teeth 111 and the first grooves 112 in the second clamping area S2 can be the same or different.

[0132] Alignment refers to the matching of two or more components in relative positions to ensure that they can work together correctly and effectively. As shown in Figure 11, in the first clamping area S1, the first protruding tooth 111 of the first clamp cup 11 and the first groove 112 of the second clamp cup 12 are aligned; the first groove 112 of the first clamp cup 11 and the first protruding tooth 111 of the second clamp cup 12 are aligned. In the second clamping area S2, the first protruding tooth 111 of the first clamp cup 11 and the first protruding tooth 111 of the second clamp cup 12 are aligned; the first groove 112 of the first clamp cup 11 and the first groove 112 of the second clamp cup 12 are aligned. This setting method of using different structural alignment settings in the two clamping areas is more conducive to ensuring the clamping effect of the first clamp cup 11 and the second clamp cup 12 compared to the setting method of a single structural alignment setting.

[0133] Furthermore, as shown in FIG11 , in order to avoid a short circuit caused by direct contact between the first clamp cup 11 and the second clamp cup 12 , when the first clamp cup 11 and the second clamp cup 12 are closed, the distance between the second clamping areas S2 of the first clamp cup 11 and the second clamp cup 12 increases from the distal end to the proximal end.

[0134] In some embodiments, as shown in Figure 10 , the first clamping region S1 includes a first sub-region S11 and a second sub-region S12 distributed along the second direction. In the first clamping region S1 , the first protruding teeth 111 include a first sub-teeth 1111 disposed in the first sub-region S11 and a second sub-teeth 1112 disposed in the second sub-region S12. The first sub-teeth 1111 and the second sub-teeth 1112 are staggered along the third direction. For more information on the second direction, please refer to the previous description (e.g., Figure 2 ).

[0135] The first sub-region S11 and the second sub-region S12 are sub-regions of the first clamping region S1 distributed along the second direction. In some embodiments, the first sub-region S11 and the second sub-region S12 equally divide the first clamping region S1.

[0136] The first sub-teeth 1111 are convex teeth disposed in the first sub-area S11. The second sub-teeth 1112 are convex teeth disposed in the second sub-area S12. In some embodiments, the first sub-teeth 1111 and the second sub-teeth 1112 may have the same or different structural shapes.

[0137] In some embodiments, in the first clamping region S1, the first groove 112 includes a first sub-groove 1121 disposed in the first sub-region S11 and a second sub-groove 1122 disposed in the second sub-region S12. In the first sub-region S11, the first sub-teeth 1111 and the first sub-groove 1121 are alternately distributed along the third direction; and in the second sub-region S12, the second sub-teeth 1112 and the second sub-groove 1122 are alternately distributed along the third direction.

[0138] In the first clamping area S1, the first sub-tooth 1111 and the second sub-tooth 1112 are staggered along the third direction, that is, the first sub-tooth 1111 located in the first sub-area S11 and the second sub-groove 1122 located in the second sub-area S12 are arranged in alignment, and the first sub-groove 1121 located in the first sub-area S11 and the second sub-tooth 1112 located in the second sub-area S12 are arranged in alignment.

[0139] In some embodiments of the present specification, the first sub-teeth 1111 and the second sub-teeth 1112 are further staggered in the first clamping area S1 to further improve the clamping effect of the first forceps cup 11 and the second forceps cup 12 at the distal end.

[0140] Figure 12 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Example 3 of this specification when it is closed; Figure 13 is a cross-sectional view 1 of the clamp cup assembly of the clamp head mechanism shown in Figure 12 when it is open; Figure 14 is a cross-sectional view 2 of the clamp cup assembly of the clamp head mechanism shown in Figure 12 when it is open.

[0141] In some embodiments, as shown in Figures 12-14, the proximal ends of the first forceps cup 11 and the second forceps cup 12 are both provided with positioning posts 115, and the distal ends of the forceps cup seat 2 are provided with positioning holes 21 corresponding one to one with the positioning posts 115, and the positioning posts 115 and the positioning holes 21 are rotatably matched.

[0142] The positioning post 115 is a structural member used to connect the first clamp cup 11 and the second clamp cup 12 to the clamp cup base 2. An exemplary positioning post 115 may include a bolt or the like.

[0143] The positioning hole 21 is a structural component of the clamp cup base 2 for connecting the first clamp cup 11 and the second clamp cup 12. In some embodiments, the positioning hole 21 is corresponding to the positioning post 115, and the positioning post 115 at least partially passes through the positioning hole 21, thereby connecting the first clamp cup 11 and the second clamp cup 12 to the clamp cup base 2.

[0144] A rotatable fit means that two mating parts can rotate freely to a certain extent without causing rotation difficulties or damage to the parts due to an overly tight or loose fit.

[0145] In some embodiments, the size (e.g., diameter) of the positioning hole 21 can be slightly larger than the outline size (e.g., outer diameter) of the positioning post 115 to achieve rotatable engagement between the positioning post 115 and the positioning hole 21. It is understood that the positioning post 115 and the positioning hole 21 can be interchanged.

[0146] In some embodiments of the present specification, a rotational connection between the first forceps cup, the second forceps cup and the forceps cup seat can be achieved by rotatably cooperating between a positioning column provided at the proximal end of the first forceps cup and the second forceps cup and a positioning hole provided at the distal end of the forceps cup seat, thereby enabling the forceps cup assembly to perform an opening or closing operation.

[0147] In some embodiments, as shown in FIG. 13 , a conductive connecting portion 13 is provided at the proximal ends of the first forceps cup 11 and the second forceps cup 12 . The conductive connecting portion 13 is configured to be electrically connected to the conductive traction portion 30 .

[0148] The conductive traction portion 30 is a component used to control the clamp cup assembly 1 to perform an opening or closing operation while transmitting current to the clamp cup assembly 1 .

[0149] In some embodiments, the outer surface of the conductive traction portion 30 is covered with an insulating layer. The insulating layer may be made of, but not limited to, PE, PTFE, or parylene. For more information about the conductive traction portion, please refer to the relevant description below (see Figures 26 and 27).

[0150] The conductive connection part 13 is a structure for connecting the first clamp cup 11 and the second clamp cup 12 to the conductive traction part 30. In some embodiments, the conductive connection part 13 may include a conductive clamp cup hole 131 and an insulating hook 132. The clamp cup hole 131 passes through the proximal ends of the first clamp cup 11 and the second clamp cup 12 along the second direction, and the proximal ends of the first clamp cup 11 and the second clamp cup 12 are provided with a groove connected to the clamp cup hole 131 along the third direction, and the insulating hook 132 is at least partially located in the groove. The distal end of the insulating hook 132 is provided with a fixing column 1321, and the fixing column 132 is inserted into the clamp cup hole 131. The distal end (such as the conductive end) of the conductive traction part 30 can be fixedly connected to the proximal end of the insulating hook 132 by a combination of one or more methods such as plugging, snapping, and sleeve connection, thereby achieving electrical connection and fixed connection between it and the first clamp cup 11 and the second clamp cup 12. In some embodiments, the outer surface of the insulating hook 132 is also covered with an insulating layer.

[0151] It should be noted that the conductive connecting portion 13 may also be designed as any other feasible structural form, and this specification does not impose any limitation on this.

[0152] In some embodiments, as shown in Figures 12-14, the clamp head mechanism 10 further includes a connector 4. The distal end of the connector 4 includes a mounting plate 41, which engages a fixing slot 22 defined within the clamp cup 2. The proximal end of the connector 4 includes a retaining plate 42 for connection to the support tube 20. The retaining plate 42 includes a distally facing stop surface 421.

[0153] The support tube 20 is a pipe or conduit used to provide a path for the conductive traction unit 30 and the like. In some embodiments, the material of the support tube 20 may include, but is not limited to, PP, PTFE, etc. In some embodiments, the support tube 20 may be connected to the clamp head mechanism 10 via a connector 4.

[0154] The connector 4 is a structural member of the clamp head mechanism 10 for connecting to the support tube 20. In some embodiments, as shown in FIG13 , the clamp cup 2, the connector 4 and the support tube 20 are coaxially arranged and each includes a hollow structure for the conductive traction portion 30 to pass through.

[0155] The hanging platform 41 refers to a protruding structure located at the distal end of the connector 4. In some embodiments, the hanging platform 41 can be inserted into the fixing groove 22 by deforming (such as elastically deforming) to achieve a fixed connection between the connector 4 and the clamp cup seat 2.

[0156] The fixing groove 22 is a groove structure in the clamp cup 2 for securing the connector 4. In some embodiments, the fixing groove 22 is at least partially disposed within the clamp cup 2 around the axial direction of the clamp cup 2. When the mounting bracket 41 is engaged with the fixing groove 22, the clamp cup 2 is fixedly connected to the connector 4, and the clamp cup 2 can rotate relative to the connector 4. In some embodiments, the axial direction of the clamp cup 2 can be represented by the M direction shown in Figure 13.

[0157] As shown in Figure 13, the clamping platform 42 is generally barbed. In some embodiments, the inner surface of the support tube 20 is provided with a corresponding structure that can engage with the clamping platform 42, and the clamping platform 42 engages with it to achieve a tight connection between the connector 4 and the support tube 20.

[0158] Furthermore, in combination with Figure 13, it can be seen that since the clamping table 42 includes a limiting surface 421 toward the distal end, when the support tube 20 is engaged with the clamping table 42, the limiting surface 421 and the clamp cup seat 2 can constrain the axial movement of the support tube 20 along the clamp cup seat 2, so that the support tube 20 is tightly connected to the connecting piece 4, and then the support tube 20 can be stably connected to the clamp head mechanism 10.

[0159] It should be noted that, in addition to using the connector 4, the clamp head mechanism 10 can also be connected to the support tube 20 in other ways. For example, an external thread is provided on the proximal end of the clamp cup 2, and an internal thread is provided on the inner surface of the support tube 20. The clamp cup 2 and the support tube 20 are threadedly matched to achieve a fixed connection between the clamp head mechanism 10 and the support tube 20.

[0160] In some embodiments of this specification, a connector is used to provide a stable connection between the clamp head mechanism and the sheath, which helps to ensure the safety of the clamp head mechanism during operation.

[0161] Figure 15 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Example 4 of this specification when it is opened; Figure 16 is a structural schematic diagram of the connection between the clamp cup and the conductive traction part of the clamp head mechanism shown in Figure 15; Figure 17 is a cross-sectional view of Figure 16.

[0162] In some embodiments, as shown in Figures 15-17, the first forceps cup 11 includes a first forceps head 1101 and a first forceps handle 1102, and the second forceps cup 12 includes a second forceps head 1201 and a second forceps cup 1202. The first forceps handle 1102 and the second forceps handle 1202 are respectively hinged to the forceps cup base 2, with the distal end of the first forceps handle 1102 connected to the first forceps head 1101, and the distal end of the second forceps handle 1202 connected to the second forceps head 1201.

[0163] The first pliers head 1101 is the structure of the first pliers cup 11 used to clamp wound tissue and coagulate the wound tissue when current passes through it. The first pliers handle 1102 is the structure of the first pliers cup 11 used to connect to the pliers cup base 2. In some embodiments, the first pliers head 1101 and the first pliers handle 1102 can be integrally formed or separate structures.

[0164] Similarly, the second pliers head 1201 is the structure of the second pliers cup 12 used to clamp the wound tissue and coagulate the wound tissue when current passes through it. The second pliers handle 1202 is the structure of the second pliers cup 12 used to connect to the pliers cup base 2. In some embodiments, the second pliers head 1201 and the second pliers handle 1202 can be integrally formed or separate structures.

[0165] In some embodiments, the first and second handles 1102, 1202 are respectively hinged to the forceps cup 2, and the first and second handles 1102, 1202 are arranged in a cross-shaped arrangement. As an example only, as shown in Figures 15-17, the first and second handles 1102, 1202 are each provided with a first pin hole 1103, and the forceps cup 2 is provided with a second pin hole 23. During installation, the first pin holes 1103 on both handles are aligned with the second pin hole 23, and the pin shaft passes through the first pin hole 1103 of one of the handles, the second pin hole 23 on the forceps cup 2, and the first pin hole 1103 of the other handle in sequence, thereby installing the first and second handles 1102, 1202 on the forceps cup 2. This arrangement can improve the effectiveness of the first and second pliers heads 1101, 1201 in clamping wound tissue.

[0166] It should be noted that the first clamp handle 1102 and the second clamp handle 1202 may also be symmetrically distributed, and can respectively drive the clamp heads to open and close to clamp or loosen the incision tissue.

[0167] In some embodiments, the first pliers 1101 and the second pliers 1201 include an assembly portion 116 located at their proximal ends and a clamping portion 117 located at their distal ends. In order to enable the pliers (including the first pliers 1101 and the second pliers 1201) to better clamp the wound tissue without affecting the electrocoagulation of the tissue cutting position by the pliers, in this embodiment, the clamping portion 117 can be designed to be cup-shaped, and the clamping surfaces of the clamping portions 117 of the two pliers that cooperate with each other are designed to be serrated or other winding irregular shapes, and the outer surface of the pliers is set to be a smooth arc conductive surface.

[0168] In some embodiments, the clamp head mechanism 10 further includes a connection structure for connecting the first clamp head 1101 and the first clamp handle 1102, and the second clamp head 1201 and the second clamp handle 1202. The connection structure includes a first connection portion 118 and a second connection portion 119. The first connection portion 118 is configured to electrically connect the first clamp head 1101, the second clamp head 1201, and the conductive traction portion 30, and the second connection portion 119 is configured to insulate the first clamp handle 1102, the second clamp handle 1202, and the conductive traction portion 30.

[0169] The connection structure is used to connect the pliers head and the pliers handle. The first connecting portion 118 is provided on the first pliers head 1101 and the second pliers head 1201 and is used to electrically connect to the conductive traction portion 30. The second connecting portion 119 is provided on the first pliers handle 1102 and the second pliers handle 1202 and is used to insulate the conductive traction portion 30.

[0170] In some embodiments, the first connecting portion 118 and the second connecting portion 119 can be designed in a variety of structural shapes, so long as they can respectively achieve an electrical connection between the pliers head and the conductive traction portion 30 and an insulated connection between the pliers handle and the conductive traction portion 30. For more information about the first connecting portion and the second connecting portion, please refer to the relevant descriptions below (such as Figures 16-22).

[0171] In some embodiments of the present specification, by arranging the pliers head at one end of the pliers handle away from the pliers cup seat and insulated from the pliers handle, on the one hand, the electrocoagulation area can be concentrated at the position where the pliers head clamps the wound tissue, which is beneficial to increasing the electrocoagulation efficiency; on the other hand, the positions where the two pliers cups are electrically connected can be relatively isolated to avoid the situation where the two pliers cups are short-circuited. Furthermore, the pliers head mechanism includes a connection structure for connecting the first pliers head to the first pliers handle and the second pliers head to the second pliers handle, wherein the pliers head includes a first connection portion for conductive connection with the conductive traction portion, which can prevent the pliers head from being disconnected and affecting the electrocoagulation effect when the pliers head mechanism is used in a bipolar electrical treatment device. The pliers handle includes a second connection portion for insulated connection with the conductive traction portion, which can enable the conductive traction portion to push the pliers handle to rotate and drive the paired pliers heads to open and close.

[0172] Furthermore, due to the relatively small size of the pliers mechanism 10, the first and second pliers handles 1102, 1202 can be entirely made of insulating materials for ease of processing. The first and second pliers heads 1101, 1201 are entirely made of conductive materials. Conductive materials include, but are not limited to, SUS stainless steel, cobalt-chromium alloy, and titanium. Insulating materials include, but are not limited to, ceramics, alumina, zirconia, and polyetheretherketone (PEEK).

[0173] In other embodiments, the first pliers handle 1102 and the second pliers handle 1202 may not be made entirely of insulating material. In such embodiments, the outer surfaces of the first pliers handle 1102 and the second pliers handle 1202 may be covered with an insulating layer to also achieve the effect of insulating the entire pliers handle.

[0174] In some embodiments, as shown in FIG. 16 and FIG. 17 , the second connection portion 119 includes a connection slot 1191 , which passes through the first clamp handle 1102 and the second clamp handle 1202 , and is configured to be mechanically connected to the conductive traction portion 30 .

[0175] The connection groove 1191 refers to a structure for the conductive traction part 30 to pass through and be mechanically connected thereto.

[0176] In some embodiments, since the connection slot 1191 passes through the first clamp handle 1102 and the second clamp handle 1202 , the distal end (eg, the conductive end) of the conductive traction portion 30 can be electrically connected to the first clamp head 1101 and the second clamp head 1201 .

[0177] In some embodiments, the size of the connecting groove 1191 (such as the aperture) can be equal to or slightly smaller than the outline size of the conductive traction part 30 (such as the outer diameter), so that the conductive traction part 30 fits tightly against the inner wall of the connecting groove 1191.

[0178] As mentioned above, the outer surface of the conductive traction part 30 is covered with an insulating layer, or the first clamp handle 1102 and the second clamp handle 1202 are made of insulating material as a whole. Therefore, when the conductive traction part 30 is tightly fitted with the inner wall of the connecting groove 1191, the conductive traction part 30 and the connecting groove 1191 are mechanically connected and also insulated.

[0179] It should be noted that the second connecting portion 119 may also adopt any other feasible structure, such as a snap, a barrier rod or an adhesive gasket, as long as the conductive traction portion 30 is fixed in the connecting groove 1191 .

[0180] FIG18 is a schematic structural diagram of the clamp handle of the clamp head mechanism shown in FIG15; FIG19 is a schematic diagram of FIG18 from another angle.

[0181] In some embodiments, as shown in Figures 18 and 19, in the first direction, the proximal opening 1192 and the distal opening 1193 of the connecting slot 1191 are respectively located on either side of the hinge point 24 where the proximal ends of the first and second handles 1102, 1202 are hingedly connected to the clamp cup 2. For more information about the first direction, please refer to the relevant description above (see Figure 2).

[0182] It can be understood that by arranging the openings of the connecting groove 1191 at both ends of the pliers handle (including the first pliers handle 1102 and the second pliers handle 1202) on both sides of the hinge point where the pliers handle and the pliers cup 2 are hinged in the first direction, the connecting groove 1191 can be arranged in a curved distribution on the pliers handle (i.e., the connecting groove 1191 can be arranged in a curved shape), thereby enabling the conductive pulling portion 30 to better pull and push the pliers handle. Moreover, the annular distal opening 1193 of the connecting groove 1191 can also, to a certain extent, restrict the conductive pulling portion 30 from separating from the connecting groove 1191 from the proximal opening 1192 of the connecting groove 1191, thereby achieving a better assembly effect.

[0183] In some embodiments, as shown in Figures 17-21, the first pliers handle 1102 and the second pliers handle 1202 include a snap block 1181, the first pliers head 1101 and the second pliers head 1201 include a snap slot 1182, and the distal opening 1192 of the connecting slot 1191 is at least partially located outside the snap block 1181.

[0184] In some embodiments, a snap-fit ​​block 1181 is disposed at the distal ends of the first and second pliers handles 1102, 1202, and a snap-fit ​​groove 1182 is disposed at the proximal ends of the first and second pliers heads 1101, 1201, for snapping into engagement with the snap-fit ​​block 1181. The snap-fit ​​block 1181 can be integrally formed with the pliers cup 2, and its structural shape matches the structural shape of the snap-fit ​​groove 1182. During assembly, the snap-fit ​​block 1181 snaps into the snap-fit ​​groove 1182, thereby achieving a stable connection between the first pliers head 1101 and the first pliers handle 1102, and between the second pliers head 1201 and the second pliers handle 1202. It should be noted that the snap-fit ​​block 1181 can also be designed as a specific structure (such as a stepped structure) or made of an elastic material to prevent it from detaching from the snap-fit ​​groove 1182.

[0185] Figure 20 is a cross-sectional view of the clamp head of the clamp head mechanism shown in Figure 15; Figure 21 is a structural schematic diagram of the clamp head of the clamp head mechanism shown in Figure 15.

[0186] 20-21 , the engaging slot 1182 includes a first slot portion 11821 and a second slot portion 11822. The first slot portion 11821 is configured to be plugged into the engaging block 1181, and the second slot portion 11822 is configured to be plugged into the conductive traction portion 30.

[0187] The second groove 11822 can be used to accommodate the distal end (e.g., the conductive end) of the conductive pulling portion 30. In some embodiments, the second groove 11822 is located at the proximal end of the first clamp head 1101 and the second clamp head 1201, so that the distal end (e.g., the conductive end) of the conductive pulling portion 30 can be inserted into the second groove 11822, thereby electrically connecting the first clamp head 1101 and the second clamp head 1201. It can be understood that in this embodiment, the first connecting portion 118 can include a snap block 1181 and a snap slot 1182.

[0188] During the assembly of the pliers head and the handle, the snap block 1181 is inserted into the first groove 11821, and the distal end (conductive end) of the conductive traction part 30 is simultaneously inserted into the second groove 11822. The distal end of the conductive traction part 30 is usually a metal wire with a softer material. In order to facilitate the assembly of the pliers head and the handle, in this embodiment, the distal end opening 1193 of the connecting groove 1191 is at least partially located outside the snap block 1181. The snap block 1181 can fit tightly with the distal end of the conductive traction part 30, so that the snap block 1181 can support the distal end of the conductive traction part 30. During the insertion process, the snap block 1181 can synchronously drive the distal end of the conductive traction part 30 and push the distal end of the conductive traction part 30 to fit tightly with the inner wall of the second groove 11822.

[0189] In some embodiments, the engaging block 1181 may be provided with an auxiliary pusher (not shown) connected to the distal end of the conductive pulling portion 30 to push the distal end of the conductive pulling portion 30 to closely fit the inner wall of the second groove 11822. The auxiliary pusher may be configured as an elastic gasket, an adhesive sheet, or the like.

[0190] By setting up the auxiliary pushing member, on the one hand, it is beneficial to the fixed insertion of the distal end of the conductive traction part 30 and its close fit with the inner wall of the second groove part 11822; on the other hand, it is beneficial to further increase the insulation effect between the distal end of the conductive traction part 30 and the clamp handle.

[0191] In some embodiments, in order to avoid the distal end of the conductive traction portion 30 from being exposed in contact with the clamp head, the first groove portion 11821 and the second groove portion 11822 can gradually extend from the assembly portion 116 to the clamping portion 117, but do not penetrate the assembly portion 116, so that one end of the first groove portion 11821 and the second groove portion 11822 are both in a closed state, thereby preventing blood or tissue from being stuck in the engagement groove 1182 and the engagement block 1181, and the distal end of the second groove portion 11822 from contacting the conductive traction portion 30, thereby affecting the conductive effect of the device.

[0192] In some embodiments, as shown in FIG17 , the first clamp head 1101 and the second clamp head 1201 further include a conductive connector 1183 . The engaging block 1181 is plugged into the engaging slot 1182 , and the conductive pulling portion 30 is plugged into the conductive connector 1183 .

[0193] The conductive connector 1183 can be used to accommodate and plug into the distal end of the conductive pulling portion 30 to achieve electrical connection between the pliers head and the conductive pulling portion 30. In some embodiments, the conductive connector 1183 can include a second groove 11822.

[0194] FIG22 is a schematic structural diagram of the connection between the pliers head and the pliers handle of the pliers head mechanism shown in FIG15.

[0195] In some embodiments, as shown in FIG22 , a snap-fit ​​block 1811 is located on one side of the inner surface of the pliers head, and the first connecting portion 118 further includes a locking groove 1184 and a locking rod 1185. The locking groove 1184 is provided on the snap-fit ​​block 1811, and one end of the locking rod 1185 is fixedly connected to the pliers head and has a function of locking into the locking groove 1184 to prevent the pliers head from being released from the locked state of the pliers handle. Furthermore, the locking rod 1185 extends along the second direction to provide a better locking effect.

[0196] In some embodiments, the second connecting portion 119 further includes a conductive pull rod 1194 , one end of which is fixedly connected to the clamp head, and the other end of which is bent around the distal end of the conductive traction portion 30 to form a conductive connecting surface 1195 .

[0197] Figure 23 is a structural schematic diagram of the clamp cup assembly of the clamp head mechanism shown in Example 5 of this specification when it is closed; Figure 24 is a structural schematic diagram of the connection between the clamp head and the clamp handle of the clamp head mechanism shown in Figure 23.

[0198] In some embodiments, as shown in Figures 23-24, the proximal ends of the first pliers head 1101 and the second pliers head 1201 include a plug-in block 1186, and the distal ends of the first pliers handle 1102 and the second pliers handle 1202 include a plug-in slot 1187, and the first pliers head 1101 and the first pliers handle 1102, and the second pliers head 1201 and the second pliers handle 1202 are all insulatedly connected through the plug-in block 1186 and the plug-in slot 1187.

[0199] In some embodiments, the plug block 1186 and the plug slot 1187 are correspondingly provided, and the pliers head and the pliers handle can be fixedly connected by inserting the plug block 1186 into the plug slot 1187. Moreover, because the first pliers handle 1102 and the second pliers handle 1202 are entirely made of insulating material, or the outer surface of the conductive pulling portion 30 is covered with an insulating layer, the pliers head and the pliers handle are insulated.

[0200] In some embodiments, an electrical plug hole 1188 is defined at the proximal end of the plug block 1186 , and the electrical plug hole 1188 is configured to be electrically connected to the conductive traction portion 30 .

[0201] The electrical insertion hole 1188 is a hole structure provided on the plug block 1186 for accommodating the distal end (e.g., the conductive end) of the conductive pull portion 30. In some embodiments, the distal end of the conductive pull portion 30 is inserted into the electrical insertion hole 1188, thereby electrically connecting the conductive pull portion 30 to the plug block 1186 and, in turn, to the clamp head.

[0202] After the conductive traction part 30 is inserted into the electrical insertion hole 1188 , the operator can connect the conductive traction part 30 to the clamp head by welding, bonding, etc. to ensure the conductive effect of the conductive traction part 30 .

[0203] In some embodiments, the clamp head mechanism 10 can directly open or close the clamp cup assembly 1 and supply power to the clamp cup assembly 1 via the conductive traction portion 30. In other embodiments, the conductive traction portion 30 includes a conductive traction wire 302 and a traction wire 40. The clamp head mechanism 10 can supply power to the clamp cup assembly 1 via the conductive traction wire 302 and open or close the clamp cup assembly 1 via the traction wire. For more information about the conductive traction wire, please refer to Figure 31 and its related description.

[0204] In some embodiments, as shown in FIG. 23 and FIG. 24 , a cup handle hole 1189 is formed at the proximal end of the first handle 1102 and the second handle 1202 . The cup handle hole 1189 is configured to connect the traction wire 40 .

[0205] The traction wire 40 is a structural member used to drive the forceps cup assembly 1 to perform an opening or closing operation. In some embodiments, the traction wire 40 can pass through the cup handle hole 1189 and connect to the first and second forceps handles 1102 and 1202 through various means such as threaded connection and snap connection.

[0206] The material of the traction wire 40 can be metal or non-metal. When the material of the traction wire 40 is metal, the outer surface of the traction wire 40 can be covered with an insulating layer to ensure insulation performance.

[0207] In some embodiments of this specification, a conductive traction part and a traction wire are combined, where the traction wire satisfies the opening and closing function of the clamp cup assembly, and the conductive traction part satisfies the insulation performance of the electrical circuit, so that the transmission of traction force and current does not interfere with each other, thereby helping to improve the reliability of each.

[0208] Some embodiments of the present specification also provide another pliers head mechanism 10. As shown in Figure 15, the pliers head mechanism 10 includes a pliers cup assembly 1, a pliers cup seat 2 and a connecting structure. The pliers cup assembly 1 includes a first pliers cup 11 and a second pliers cup 12 arranged opposite to each other. The pliers cup seat 2 is configured to support the pliers cup assembly 1. The first pliers cup 11 includes a first pliers head 1101 and a first pliers handle 1102, and the second pliers cup 12 includes a second pliers head 1201 and a second pliers handle 1202. The connecting structure includes a first connecting portion 118 and a second connecting portion 119. The first connecting portion 118 is configured to electrically connect the first pliers head 1101, the second pliers head 1201 and the conductive traction portion 30, and the second connecting portion 119 is configured to insulate the first pliers handle 1102, the second pliers handle 1202 and the conductive traction portion 30.

[0209] In some embodiments of the present specification, the clamp head mechanism includes a clamp cup assembly and a clamp cup seat, the clamp cup assembly includes a first clamp cup and a second clamp cup, and the first clamp cup includes a first clamp head and a first clamp handle, and the second clamp cup includes a second clamp head and a second clamp handle. The clamp head is arranged at the distal end of the clamp handle, which not only enables the electrocoagulation area to be concentrated at the position where the clamp head clamps the wound tissue, which is conducive to increasing the electrocoagulation efficiency, but also enables the positions where the two clamp cups are electrically connected to be relatively isolated to avoid the situation where the two clamp cups are short-circuited. Furthermore, the clamp head mechanism includes a connection structure for connecting the first clamp head to the first clamp handle and the second clamp head to the second clamp handle, wherein the clamp head includes a first connection portion for conductive connection with the conductive traction portion, which can prevent the clamp head from disconnecting and affecting the electrocoagulation effect when the clamp head mechanism is used in a bipolar electrical treatment device. The clamp handle includes a second connection portion for insulated connection with the conductive traction portion, so that the conductive traction portion can push the clamp handle to rotate and drive the paired clamp heads to open and close.

[0210] In some embodiments, the first handle 1102 and the second handle 1202 are made entirely of insulating material. In other embodiments, the outer surfaces of the first handle 1102 and the second handle 1202 are covered with an insulating layer.

[0211] In some embodiments, as shown in FIG. 16 and FIG. 17 , the second connection portion 119 includes a connection slot 1191 , which passes through the first clamp handle 1102 and the second clamp handle 1202 , and is configured to be mechanically connected to the conductive traction portion 30 .

[0212] In some embodiments, as shown in Figures 18 and 19, in a first direction, the proximal opening 1192 and the distal opening 1193 of the connecting slot 1191 are respectively located on either side of the hinge point 24 where the proximal ends of the first and second handles 1102, 1202 are hingedly connected to the forceps cup base 2. The first direction is perpendicular to the minor axis and major axis of the first and / or second forceps cups 11, 12.

[0213] In some embodiments, as shown in Figures 18-21, the first pliers handle 1102 and the second pliers handle 1202 include a snap block 1181, the first pliers head 1101 and the second pliers head 1201 include a snap slot 1182, and the distal opening 1192 of the connecting slot 1191 is at least partially located outside the snap block 1181.

[0214] 20-21 , the engaging slot 1182 includes a first slot portion 11821 and a second slot portion 11822. The first slot portion 11821 is configured to be plugged into the engaging block 1181, and the second slot portion 11822 is configured to be plugged into the conductive traction portion 30.

[0215] In some embodiments, the first clamp head 1101 and the second clamp head 1201 further include a conductive connector 1183 . The engaging block 1181 is plugged into the engaging slot 1182 , and the conductive pulling portion 30 is plugged into the conductive connector 1183 .

[0216] The conductive connector 1183 can be used to accommodate and plug into the distal end of the conductive pulling portion 30 to achieve electrical connection between the pliers head and the conductive pulling portion 30. In some embodiments, the conductive connector 1183 can include a second groove 11822.

[0217] In some embodiments, as shown in Figures 23-24, the proximal ends of the first pliers head 1101 and the second pliers head 1201 include a plug-in block 1186, and the distal ends of the first pliers handle 1102 and the second pliers handle 1202 include a plug-in slot 1187. The first pliers head 1101 and the first pliers handle 1102, and the second pliers head 1201 and the second pliers handle 1202 are all insulatedly connected via the plug-in block 1186 and the plug-in slot 1187. The proximal end of the plug-in block 1186 is provided with an electrical plug-in hole 1188, which is configured to be electrically connected to the conductive traction portion 30.

[0218] In some embodiments, as shown in FIG. 23 and FIG. 24 , a cup handle hole 1189 is formed at the proximal end of the first handle 1102 and the second handle 1202 . The cup handle hole 1189 is configured to connect the traction wire 40 .

[0219] In some embodiments, as shown in Figures 1 and 2, the clamp head mechanism 10 further includes an insulating support member 3. The insulating support member 3 is disposed between the first clamp cup 11 and the second clamp cup 12. When the first clamp cup 11 and the second clamp cup 12 perform a closing operation, the insulating support member 3 separates the first clamp cup 11 and the second clamp cup 12.

[0220] In some embodiments of the present specification, the clamp head mechanism can further avoid direct contact between the two clamp cups and short circuit, which may cause damage to the instrument and energy loss, by providing an insulating support member between the first clamp cup and the second clamp cup. This is also beneficial to ensuring the coagulation effect of the clamp head mechanism.

[0221] In some embodiments, on the same projection plane, the projection of the insulating support member 3 along the first direction partially covers the projection of the first clamp cup 11 and / or the second clamp cup 12 along the first direction.

[0222] In some embodiments, on the same projection plane, a ratio of a projection area of ​​the insulating support member 3 along the first direction to a projection area of ​​the first clamp cup 11 and / or the second clamp cup 12 along the first direction ranges from 0.1 to 0.23.

[0223] In some embodiments, as shown in FIG2 , the ratio of the size of the insulating support member 3 along the second direction to the size of the first clamp cup 11 and / or the second clamp cup 12 along the second direction is no greater than 0.27. The second direction is the short axis direction of the first clamp cup 11 and / or the second clamp cup 12.

[0224] In some embodiments, the distance between the insulating support 3 and both sides of the first clamp cup 11 and / or the second clamp cup 12 along the second direction is not less than 0.95 mm.

[0225] In some embodiments, the ratio of the dimension of the insulating support 3 along the third direction to the dimension of the first clamp cup 11 and / or the second clamp cup 12 along the third direction is not less than 0.23.

[0226] In some embodiments, as shown in FIG. 3 and FIG. 4 , the minimum support height of the insulating support member 3 ranges from 0.4 mm to 0.7 mm.

[0227] 4 , the support height of the insulating support member 3 decreases from the distal end to the proximal end along the third direction. In some embodiments, the thickness of the insulating support member 3 protruding from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 increases from the distal end to the proximal end.

[0228] In some embodiments, the insulating support member 3 includes second protruding teeth 31 and second grooves 32 alternately distributed along the third direction.

[0229] In some embodiments, as shown in Figures 1-4 , the inner surface of the first forceps cup 11 and / or the second forceps cup 12 includes first protruding teeth 111 and first grooves 112 alternately distributed along the third direction, with each first protruding tooth 111 and first groove 112 configured to extend along the second direction. The insulating support member 3 includes second protruding teeth 31 corresponding to at least a portion of the first protruding teeth 111 and second grooves 32 corresponding to at least a portion of the first grooves 112, with the second protruding teeth 31 protruding from the surface of the first protruding teeth 111.

[0230] In some embodiments, the insulating support member 3 is disposed on the surfaces of the first protruding teeth 111 and the first grooves 112 .

[0231] In some embodiments, as shown in FIG3 , the inner surface of the first clamp cup 11 and / or the second clamp cup 12 further includes a mounting groove 113 , and the insulating support member 3 is disposed in the mounting groove 113 .

[0232] In some embodiments, as shown in Figures 7-8, the insulating support member 3 includes a support column 33, and the distance from the center of the support column 33 to the distal end of the first clamp cup 11 and / or the second clamp cup 12 is smaller than the distance from the center of the support column 33 to the proximal end of the first clamp cup 11 and / or the second clamp cup 12.

[0233] In some embodiments, the ratio of the distance from the center of the support column 33 to the distal end of the first clamp cup 11 and / or the second clamp cup 12 to the distance from the center of the support column 33 to the proximal end of the first clamp cup 11 and / or the second clamp cup 12 ranges from 0.2 to 0.43.

[0234] In some embodiments, as shown in FIG. 8 , the distance that the insulating support member 3 protrudes from the inner surface of the first clamp cup 11 and / or the second clamp cup 12 is in the range of 0.05 mm to 0.2 mm.

[0235] In some embodiments, as shown in FIG. 1 , when the first forceps cup 11 and the second forceps cup 12 perform a closing operation, the minimum distance between the first forceps cup 11 and the second forceps cup 12 is in the range of 0.1 mm to 0.2 mm.

[0236] In some embodiments, as shown in FIG. 1 , when the first forceps cup 11 and the second forceps cup 12 perform a closing operation, the distance between the first forceps cup 11 and the second forceps cup 12 increases from the distal end to the proximal end.

[0237] In some embodiments, at least a portion of the inner surfaces of the first clamp cup 11 and the second clamp cup 12 is provided with a conductive area.

[0238] In some embodiments, at least a portion of the circumferential surface of the first and second forceps cups 11, 12 is provided with a conductive region. In this embodiment, the inner surface of the first and / or second forceps cups 11, 12 is non-conductive. For more information about the conductive region, please refer to the relevant description above (see FIG2 ).

[0239] In some embodiments, as shown in Figures 9-11, the inner surfaces of the first clamp cup 11 and the second clamp cup 12 include a first clamping area S1 and a second clamping area S2 distributed along a third direction, the first clamping area S1 is located at the distal end, and the second clamping area S2 is located at the proximal end, and the first clamping area S1 and the second clamping area S2 include a first protruding tooth 111 and a first groove 112.

[0240] In the first clamping area S1, the first protruding teeth 111 of one of the first and second clamping cups 11 and 12 are aligned with the first grooves 112 of the other. In the second clamping area S2, the first protruding teeth 111 of one of the first and second clamping cups 11 and 12 are aligned with the first protruding teeth 111 of the other.

[0241] In some embodiments, as shown in FIG10 , the first clamping region S1 includes a first sub-region S11 and a second sub-region S12 distributed along the second direction. In the first clamping region S1 , the first protruding teeth 111 include a first sub-protruding tooth 1111 disposed in the first sub-region S11 and a second sub-protruding tooth 1112 disposed in the second sub-region S12. The first sub-protruding teeth 1111 and the second sub-protruding teeth 1112 are staggered along the third direction.

[0242] For more information about the clamp head mechanism, please refer to the relevant descriptions in other parts of this manual.

[0243] Some embodiments of the present disclosure also provide a bipolar electrotherapy device 100. As shown in FIG25 , the bipolar electrotherapy device 100 includes the aforementioned clamp head mechanism 10, a conductive pulling portion 30, an electrical connection portion 50, and an operating portion 60. The distal end of the conductive pulling portion 30 is at least partially electrically connected to the clamp head mechanism 10, and the proximal end of the conductive pulling portion 30 is electrically connected to the electrical connection portion 50. The operating portion 60 is connected to the electrical connection portion 50 and is configured to at least control the opening or closing of the clamp head mechanism 10.

[0244] The clamp head mechanism 10 is a mechanism for clamping wound tissue and coagulating the wound tissue when powered on. For more information about the clamp head mechanism, please refer to the relevant descriptions in other parts of this specification (such as Figures 1 to 24).

[0245] In some embodiments, the distal end of the conductive traction portion 30 can be at least partially electrically connected to the proximal end of the clamp head mechanism 10 by plugging, etc. For more information about the conductive traction portion, please refer to the relevant description in other parts of this specification.

[0246] The electrical connection portion 50 is a component of the bipolar electrical treatment device 100 used to supply power to the clamp head mechanism 10. In some embodiments, the electrical connection portion 50 can be electrically connected to the clamp head mechanism 10 via the conductive traction portion 30, so that the clamp head mechanism 10 is energized, thereby coagulating the wound tissue when clamping the wound tissue.

[0247] The operating portion 60 refers to a component of the bipolar electrical treatment device 100 for an operator to operate. In some embodiments, the operating portion 60 can be connected to the electrical connection portion 50 by other structural members, based on a method such as clamping or welding.

[0248] In some embodiments, the operating portion 60 can push the electrical connection portion 50 to move, thereby driving the conductive traction portion 30 to control the clamp head mechanism 10 to open or close.

[0249] In some embodiments, the operating portion 60 can also drive the electrical connection portion 50 to rotate, thereby driving the conductive traction portion 30 to control the rotation of the clamp head mechanism 10 .

[0250] For more information about the bipolar electrical treatment device, please refer to Figures 26-38 and their related descriptions.

[0251] In some embodiments of the present specification, the bipolar electrical treatment device includes a clamp head mechanism, a conductive traction part, an electrical connection part and an operating part, wherein the conductive traction part is electrically connected to the clamp head mechanism and the electrical connection part respectively, and the operating part is connected to the electrical connection part, and the opening and closing of the clamp head mechanism can be controlled by controlling the operating part. The structure is simple and easy to operate.

[0252] In some embodiments, the distal end of the conductive pulling portion 30 is mechanically connected to the clamp head mechanism 10, and the proximal end of the conductive pulling portion 30 is mechanically connected to the operating portion 60. Exemplary mechanical connection methods include but are not limited to snap connection, welding, plug connection, etc.

[0253] In some embodiments, the clamp head mechanism 10 includes a clamp cup, which includes a clamp head and a clamp handle. The distal end of the conductive traction portion 30 is fixedly connected to the clamp handle and electrically connected to the clamp head.

[0254] FIG26 is a schematic diagram of the structure of the conductive traction portion when the clamp cup assembly is open; FIG27 is a schematic diagram of the structure of the conductive traction portion when the clamp cup assembly is closed.

[0255] In some embodiments, as shown in Figures 26 and 27, the forceps cup includes a first forceps cup 11 and a second forceps cup 12, which are arranged opposite to each other. The first forceps cup 11 includes a first forceps head 1101 and a first forceps handle 1102, and the second forceps cup 12 includes a second forceps head 1201 and a second forceps handle 1202.

[0256] In some embodiments, the first and second pliers heads 1101, 1201 include a first connecting portion 118 for electrically connecting to the conductive traction portion 30, and the first and second pliers handles 1102, 1202 include a second connecting portion 119 for insulated connection to the conductive traction portion 30. The distal end of the conductive traction portion 30 can be fixedly connected to both the first and second pliers handles 1102, 1202 via the second connecting portion 119, and electrically connected to both the first and second pliers heads 1101, 1201 via the first connecting portion 118. For more information about the first and second connecting portions, please refer to the relevant description above.

[0257] In some embodiments, the outer surface of the conductive traction portion 30 is covered with an insulating layer. The material of the insulating layer may include but is not limited to PE, PTFE, parylene, etc.

[0258] In some embodiments, the entire pliers handle is made of an insulating material. Alternatively, the outer surface of the connection between the conductive traction portion 30 and the pliers handle is covered with an insulating layer. The insulating material may include ceramic, aluminum oxide, zirconium oxide, polyetheretherketone (PEEK), etc.

[0259] It can be understood that by making the entire pliers handle out of insulating material, or covering the outer surface of the conductive traction part 30 or the outer surface of the connection position with the pliers handle with an insulating layer, the conductive traction part 30 can be insulated from the pliers handle to ensure that the pliers handle will not have leakage or short circuit problems.

[0260] In some embodiments, as shown in FIG. 26 and FIG. 27 , the connection position between the conductive traction portion 30 and the clamp handle has a bent portion 301 .

[0261] The bent portion 301 refers to a local bent section of the conductive traction portion 30. In some embodiments, the bent portion 301 can be used to drive the clamp head mechanism 10 to perform an opening or closing operation better and more accurately.

[0262] In some embodiments, the conductive traction portion 30 has a certain hardness and strength, and the conductive traction portion 30 can be partially bent to a preset curvature to form a curved portion 301. The preset curvature can be determined according to actual usage.

[0263] Since the operating portion 60 mainly controls the clamp head mechanism 10 to perform an opening or closing operation by driving the conductive traction portion 30 to move, the bending radius of the bending portion 301 will change under the control of the operating portion 60 .

[0264] In some embodiments, when the clamp head mechanism 10 is closed, the bending radius of the curved portion 301 ranges from 0.4 mm to 0.6 mm. In some embodiments, when the clamp head mechanism 10 is closed, the bending radius of the curved portion 301 ranges from 0.48 mm to 0.58 mm. In some embodiments, when the clamp head mechanism 10 is closed, the bending radius of the curved portion 301 ranges from 0.5 mm to 0.55 mm. For example, 0.5 mm.

[0265] In some embodiments, when the jaw mechanism 10 is fully opened, the bending radius of the curved portion 301 ranges from 1 mm to 1.2 mm. In some embodiments, when the jaw mechanism 10 is fully opened, the bending radius of the curved portion 301 ranges from 1 mm to 1.18 mm. In some embodiments, when the jaw mechanism 10 is fully opened, the bending radius of the curved portion 301 ranges from 1.1 mm to 1.15 mm. For example, 1.1 mm.

[0266] In some embodiments, the location where the distal end of the conductive traction portion 30 is fixedly connected to the clamp handle includes a universal joint (not shown in the figures).

[0267] Universal joints can be used to achieve power transmission between different axes. In some embodiments, the universal joint is entirely made of metal to ensure the conductivity of the conductive traction portion 30 and provide a certain degree of rigidity for the curved portion 301. Metal materials include, but are not limited to, SUS stainless steel, cobalt-chromium alloy, titanium, and the like.

[0268] It can be understood that since there is a bending portion 301 at the position where the conductive traction portion 30 is fixedly connected to the clamp handle, by providing a universal joint here, power transmission can be better performed, which is more conducive to the operator's control of the clamp head mechanism 10.

[0269] In some embodiments, the conductive traction portion 30 may also be formed into a curved portion 301 by other means. As shown in Figures 26 and 27, the curved portion 301 may include a first drive portion 3011 and a second drive portion 3012 that are rotatable relative to each other. The curved portion 301 transmits power through the relative force between the first drive portion 3011 and the second drive portion 3012, so that the conductive traction portion 30 can drive the clamp head mechanism 10 to rotate.

[0270] Furthermore, to prevent the conductive pulling portion 30 from repeatedly expanding and contracting, which could easily cause it to break, in this embodiment, the conductive pulling portion 30 includes a first conductive pulling wire 3021 and a second conductive pulling wire 3022. The distal end of the first conductive pulling wire 3021 protrudes from the insulating layer 303 to form an exposed end 304. The exposed end 304 extends from the end of the pliers handle near the pliers head into the pliers head and is electrically connected to the pliers head. The proximal end of the first conductive pulling wire 3021 is electrically connected to the first driving portion 3011; the distal end of the second conductive pulling wire 3022 is electrically connected to the second driving portion 3012, and the proximal end of the second conductive pulling wire 3022 is electrically connected to the electrical connection portion 50. In some embodiments, the insulating layer 303 is disposed around the outer surfaces of the first conductive pulling wire 3021, the second conductive pulling wire 3022, and the curved portion 301. Of course, in other embodiments, the curved portion 301 may also be disposed on the outer surface of the insulating layer 303.

[0271] Moreover, in order to ensure the conductive performance of the conductive traction portion 30 and to make the bending portion 301 have a certain rigidity, the first driving portion 3011 and the second driving portion 3012 are made of metal materials as a whole.

[0272] Figure 28 is a schematic structural diagram of the curved portion shown in Figure 26 or Figure 27. As shown in Figure 28, to facilitate relative rotation of the first driving portion 3011 and the second driving portion 3012, the first driving portion 3011 can be designed as a slot column with a circular arc groove 30111 at one end, and the second driving portion 3012 can be designed as a ball head column with a ball 30121 at one end. The ball 30121 cooperates with the circular arc groove 30111 to enable the first driving portion 3011 and the second driving portion 3012 to rotate 360 ​​degrees relative to each other.

[0273] In some embodiments, as shown in Figures 26-27, the clamp head mechanism 10 further includes a clamp cup seat 2, which can be used to support the clamp cup. In some embodiments, the clamp cup seat 2 can be designed to be U-shaped, with open slots on both sides for the bending portion 301 to extend and retract, thereby facilitating the deformation of the bending portion 301.

[0274] In other embodiments, the bipolar electrical treatment device 100 adopts a clamp head mechanism 10 as shown in Figures 13-14. The clamp head mechanism 10 includes a clamp cup and a clamp cup seat 2. The clamp cup and the clamp cup seat 2 are hinged. The distal end of the conductive traction part 30 is fixedly connected to the proximal end of the clamp cup, and the fixed connection is an electrical connection.

[0275] In some embodiments, the clamp cup includes a first clamp cup 11 and a second clamp cup 12 disposed opposite each other, and the first clamp cup 11 and the second clamp cup 12 are both fixedly connected to the clamp cup base 2. For more information about the first clamp cup, the second clamp cup and the clamp cup base, please refer to the relevant description above.

[0276] For more details about the fixed connection between the distal end of the conductive traction portion and the proximal end of the clamp cup, please refer to the relevant description in the previous text (such as Figures 13 and 14).

[0277] In some embodiments, in a first direction, the connection point where the distal end of the conductive traction portion 30 is fixedly connected to the proximal end of the forceps cup is located on one side of the hinge point where the forceps cup is hinged to the forceps cup base 2. The first direction is perpendicular to the minor and major axes of the forceps cup. For more information about the first direction, please refer to the relevant description above (e.g., FIG2 ).

[0278] By deviating the connection position between the conductive traction part 30 and the clamp cup from the hinge point between the clamp cup and the clamp cup seat 2 in the first direction, the conductive traction part 30 can be curved, thereby facilitating the conductive traction part 30 to control the clamp head mechanism 10 more accurately.

[0279] FIG29 is a cross-sectional view of the bipolar electrical treatment device shown in FIG25 ; FIG30 is an enlarged schematic view of point A in FIG29 .

[0280] 29-30 , the bipolar electrical treatment device 100 further includes a sheath 70 . The distal end of the sheath 70 is mechanically connected to the forceps mechanism 10 , and the proximal end of the sheath 70 is mechanically connected to the operating portion 60 .

[0281] The sheath 70 is a component of the bipolar electrical treatment device 100 for supporting the conductive traction part 30. In some embodiments, the distal end of the conductive traction part 30 can pass through the sheath 70 and be at least partially electrically connected to the forceps head mechanism 10.

[0282] In some embodiments, the distal end of the sheath 70 can be connected to the clamp cup seat 2 of the clamp head mechanism 10 by snapping, plugging, etc., and the proximal end of the sheath 70 can be rotatably connected to the operating part 60 to facilitate driving the clamp head mechanism 10 to rotate.

[0283] In some embodiments, the sheath 70 includes a spring hose 71 disposed around the outer surface of the conductive traction portion 30. The distal end of the spring hose 71 can be connected to the forceps cup 2 via a pin, a pin, a bolt, or the like, and the proximal end of the spring hose 71 can be directly rotatably mounted on the operating portion 60. It should be noted that the proximal end of the spring hose 71 can also be rotatably mounted on the operating portion 60 via a sleeve or other structure.

[0284] In some embodiments, as shown in Figure 30, the spring hose 71 may include a spring tube 711 and a plastic coating layer 712, wherein the plastic coating layer 712 covers the outer surface of the spring tube 711. It should be noted that the plastic coating layer 712 may be an insulating layer.

[0285] In some embodiments of this specification, the spring hose 71 is used to ensure not only the support and deformation effects of the sheath tube 70 , but also the insulation performance of the sheath tube 70 .

[0286] In some embodiments, as shown in FIG30 , the sheath tube 70 further includes a support tube 20 . The support tube 20 can be sleeved on the outer surface of the plastic coating layer 712 to further ensure the insulation performance and lubrication effect of the sheath tube 70 .

[0287] In some embodiments, as shown in FIG30 , a connector 80 is at least partially sheathed on the outer surface of the sheath tube 70. The proximal end of the connector 80 is mechanically connected to the operating portion 60. The proximal end of the sheath tube 70 is located within the connector 80, and the sheath tube 70 can rotate relative to the connector 80. By disposing the connector 80 on the outer surface of the sheath tube 70, the support effect of the sheath tube 70 is further improved.

[0288] In some embodiments, as shown in FIG30 , a fixing member 72 is provided at the proximal end of the sheath tube 70. The fixing member 72 is fixedly connected (e.g., welded) to the proximal end of the sheath tube 70. In some embodiments, the fixing member 72 can be used to support or secure the conductive traction portion 30 and allow the conductive traction portion 30 to pass through. Providing the fixing member 72 at the proximal end of the sheath tube 70 can better support the conductive traction portion 30.

[0289] Figure 31 is an enlarged schematic diagram of point B in Figure 29. As shown in Figures 29 and 31, the bipolar electrical treatment device 100 further includes an electrical connector 90. The proximal end of the conductive traction portion 30 extends into the electrical connector 80 and is electrically connected to the electrical connector 80.

[0290] In some embodiments, as shown in FIG31 , the conductive traction portion 30 includes two conductive traction wires 302 , and the electrical connector 90 includes an active electrode 901 and a passive electrode 902 . The active electrode 901 and the passive electrode 902 are respectively connected to one conductive traction wire 302 .

[0291] In some embodiments, the electrical connector 90 further includes an insulating member 903. The insulating member 903 can be used to isolate the active electrode 901 from the passive electrode 902. In some embodiments, the material of the insulating member 903 includes, but is not limited to, resin.

[0292] In some embodiments, the active electrode 901 includes a first electrode 9011 and an active electrode tube 9012. One end of the first electrode 9011 is interference-fitted with the insulating member 903 and is provided with a connecting boss 9013. One end of the active electrode tube 9012 is connected to the connecting boss 9013 (e.g., by welding), and the other end of the active electrode tube 9012 is connected to a conductive traction wire 302 (e.g., by welding or crimping).

[0293] In some embodiments, the passive electrode 902 includes a second electrode 9021 and a passive electrode tube 9022. The second electrode 9021 is sleeved on the insulating member 903, and one end of the passive electrode tube 9022 is connected to one end of the second electrode 9021 (e.g., by welding or crimping), and the other end of the passive electrode tube 9022 is connected to another conductive traction wire 302.

[0294] In some embodiments, the active electrode 901 and the passive electrode 902 are respectively connected to a conductive pulling wire 302 to be electrically connected to the first clamp cup 11 and the second clamp cup 12 , respectively, thereby forming a conductive loop.

[0295] In some embodiments, as shown in FIG. 29 , the operating portion 60 includes a handle 601 , and the electrical connector 90 and the handle 601 are slidably engaged along the axial direction of the handle.

[0296] The handle 601 is a structural component of the operating portion 60 used to control the rotation of the clamp head mechanism 10 .

[0297] A sliding fit refers to a fit in which the relative motion between the hole and the shaft is primarily a sliding friction fit. In some embodiments, the electrical connector 90 can be connected to other structural components (such as the electrode holder 501 described below) to achieve a sliding fit with the handle 601 along the handle axis. In some embodiments, the handle axis can be represented by the N direction shown in Figure 29.

[0298] In order to facilitate the operator to better rotate the handle 601, a ring-shaped finger position 6011 can be provided on the handle 601, and the specific position of the ring-shaped finger position can be set according to the hand state of the operator during operation.

[0299] For more information about the electrode holder, please refer to the relevant description in the following text (such as Figures 32 and 33).

[0300] In some embodiments, as shown in FIG. 29 , the operating portion 60 further includes a sliding ring 602 , which is slidably matched with the handle 601 along the axial direction of the handle, and the sliding ring 602 is mechanically connected to the electrical connector 90 .

[0301] The sliding finger ring 602 is a structural component of the operating portion 60 used to control the pliers head mechanism 10 to slide along the axial direction of the handle. Similarly, the sliding finger ring 602 can also be connected to other structural components (such as the connecting piece 6021 and the electrode holder 501) to achieve axial sliding cooperation with the handle 601 and mechanical connection with the electrical connector 90.

[0302] In order to facilitate the operator to better push the sliding finger ring 602, the sliding finger ring 602 can also be provided with two ring finger positions, and the specific positions of the two ring finger positions can be set according to the hand state of the operator during operation.

[0303] In some embodiments, as shown in Figures 29 and 31, the electrical connection portion 50 includes an electrode seat 501, and the electrical connector 90 can be disposed in the electrode seat 501. In some embodiments, two conductive traction wires 302 extend into the electrode seat 501 and are connected to the active electrode 901 and the passive electrode 902, respectively.

[0304] It can be understood that one end of the conductive traction part 30 is fixed in the electrode holder 501, so that the operator can pull the sliding ring 602 while simultaneously driving the electrical connection part 50 to slide, thereby better transmitting the force of the hand to the conductive traction part 30 (specifically the bending part 301) to drive the conductive traction part 30 to deform (that is, the bending radius of the bending part 301 changes).

[0305] FIG32 is a schematic diagram of the structure of the electrode holder shown in some embodiments of this specification; FIG33 is a schematic diagram of the structure of the second electrode holder shown in FIG32. As shown in FIG32-33, in order to facilitate the installation of the electrical connection portion 50, the electrode holder 501 may include a first electrode holder 5011 and a second electrode holder 5012 arranged in a split manner. The first electrode holder 5011 and the second electrode holder 5012 are snap-fitted together, for example, by snaps, plug-in posts, and mating grooves to form an installation area for installing the electrical connector 50, and the opening of the installation area faces one side for inserting a plug of an external device. In some embodiments, the first electrode holder 5011 and the second electrode holder 5012 are also provided with installation grooves that engage with the conductive traction portion 30.

[0306] To facilitate manual manipulation, the first electrode holder 5011 forms a protruding connecting plate 5013 opposite the second electrode holder 5012, thereby increasing the distance between the electrical connector 50 and the sliding finger ring 602. The connecting plate 5013 and the first electrode holder 5011 can be integrally formed. The connecting plate 5013 is provided with a recessed groove 5014 that mates with the sliding finger ring 602, and the recessed groove 5014 is perpendicular to the handle axis. It should be noted that the sliding finger ring 602 can be connected only to the second electrode holder 5012, or simultaneously to both the first electrode holder 5011 and the second electrode holder 5012.

[0307] FIG34 is another cross-sectional view of the bipolar electrotherapy device shown in FIG25 ; FIG35 is a schematic diagram of the structure of the electrode holder shown in other embodiments of this specification. As shown in FIG34-35 , the first electrode holder 5011 and the second electrode holder 5012 have the same structure and are symmetrically arranged, thereby enabling the first electrode holder 5011 and the second electrode holder 5012 to be manufactured using the same mold, facilitating the production of the first electrode holder 5011 and the second electrode holder 5012 and reducing manufacturing costs. At this time, the first electrode holder 5011 can be fixedly connected to the first electrode holder 5011 via the connecting rod 5015, so that the sliding finger ring 602 has a driving state in which it drives the electrical connection portion 50 to slide to drive the conductive traction portion 30 to move.

[0308] Figure 36 is a schematic diagram of the structure of the operating unit shown in some embodiments of this specification; Figure 37 is a schematic diagram of the structure of the handle shown in Figure 36; and Figure 38 is a schematic diagram of the structure of the sliding finger ring shown in Figure 36. As shown in Figures 36-38, the electrical connection portion 50 is located at the end of the handle 601 away from the clamp head mechanism 10, that is, the opening where the electrode holder 501 connects to the external plug is located at the end away from the clamp head mechanism 10. This arrangement, on the one hand, prevents waste liquid or foreign matter from entering the electrical connector 50 through the opening; on the other hand, since the opening is connected to the external plug, it prevents external wiring from being entangled in the product when it is in use.

[0309] In some embodiments, the operator can control the operating portion 60 to push the electrical connection portion 50 to move, thereby driving the conductive traction portion 30 to control the clamp head mechanism 10 to open or close.

[0310] As an example only, when the operator controls the sliding ring 602 of the operating part 60 and pushes the sliding ring 602 to move distally along the axial direction of the handle, since the sliding ring 602 is fixedly connected to the electrode holder 501, the movement of the sliding ring 602 distally along the axial direction of the handle will drive the electrode holder 501 to move distally along the axial direction of the handle; and since the electrical connector 90 is arranged in the electrode holder 501 and is electrically connected to the conductive traction part 30, the movement of the electrode holder 501 will drive the conductive traction part 30 to move distally, causing the bending radius of the bending part 301 of the conductive traction part 30 to change; and because the conductive traction part 30 is mechanically connected to the clamp handle of the clamp head mechanism 10, the change in the bending radius of the bending part 301 of the conductive traction part 30 can control the opening or closing of the clamp head mechanism 10.

[0311] When the clamp head mechanism 10 is open, the insulating support member 3 and the clamp heads (first clamp head 1101 and second clamp head 1201) are clamped together to clamp wound tissue (such as mucosal tissue). The wound tissue is embedded in the insulating gap between the first clamp head 1101 and the second clamp head 1201. Because the clamp heads are electrically connected to the conductive traction part 30, the current output from one clamp head will pass through the wound tissue in the insulating gap and return to the other clamp head, thereby achieving the purpose of coagulation and hemostasis.

[0312] In some embodiments, the operator can also control the operating portion 60 to drive the electrical connection portion 50 to rotate, thereby driving the conductive traction portion 30 to control the rotation of the clamp head mechanism 10 .

[0313] Just as an example, when the operator needs the pliers head mechanism 10 to rotate, the operator can control the handle 601 of the operating part 60 to rotate. Since the handle 601 is fixedly connected to the electrode holder 501, the handle 601 can drive the electrode holder 501 to rotate; and since the electrical connector 90 is arranged in the electrode holder 501 and is electrically connected to the conductive traction part 30, the rotation of the electrode holder 501 will drive the conductive traction part 30 to rotate; and because the conductive traction part 30 is mechanically connected to the pliers handle of the pliers head mechanism 10, the rotation of the conductive traction part 30 will drive the pliers head mechanism 10 to rotate, thereby realizing the rotation function.

[0314] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are suggested in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

Claims

1. A clamp head mechanism, characterized in that: include: A clamp cup assembly, the clamp cup assembly comprising a first clamp cup and a second clamp cup arranged opposite to each other; a clamp cup seat, the clamp cup seat being configured to support the clamp cup assembly; an insulating support member, the insulating support member being disposed between the first clamp cup and the second clamp cup, and separating the first clamp cup and the second clamp cup when the first clamp cup and the second clamp cup perform a closing operation; Among them, on the same projection plane, the projection of the insulating support along the first direction partially covers the projection of the first clamp cup and / or the second clamp cup along the first direction, and the first direction is perpendicular to the short axis direction and the long axis direction of the first clamp cup and / or the second clamp cup.

2. The clamp head mechanism according to claim 1, characterized in that: On the same projection plane, a ratio of a projection area of ​​the insulating support member along the first direction to a projection area of ​​the first clamp cup and / or the second clamp cup along the first direction is in a range of 0.03 to 0.

4.

3. The clamp head mechanism according to claim 1, characterized in that: The ratio of the size of the insulating support member along the second direction to the size of the first clamp cup and / or the second clamp cup along the second direction is not greater than 0.27, and the second direction is the short axis direction of the first clamp cup and / or the second clamp cup.

4. The clamp head mechanism according to claim 1, characterized in that: The distance between the insulating support and both sides of the first clamp cup and / or the second clamp cup along the second direction is not less than 0.95 mm.

5. The clamp head mechanism according to claim 1, characterized in that: The ratio of the dimension of the insulating support member along the third direction to the dimension of the first clamp cup and / or the second clamp cup along the third direction is not less than 0.23, and the third direction is the long axis direction of the first clamp cup and / or the second clamp cup.

6. The clamp head mechanism according to claim 5, characterized in that: The minimum support height of the insulating support member ranges from 0.4 mm to 0.7 mm.

7. The clamp head mechanism according to any one of claims 5 or 6, characterized in that: The support height of the insulating support member decreases from the distal end to the proximal end; and / or, The thickness of the insulating support member protruding from the inner surface of the first clamp cup and / or the second clamp cup increases from the distal end to the proximal end.

8. The clamp head mechanism according to claim 1, characterized in that: The insulating support member includes second protruding teeth and second grooves alternately distributed along a third direction, and the third direction is the long axis direction of the first clamp cup and / or the second clamp cup.

9. The clamp head mechanism according to claim 1, characterized in that: The inner surface of the first forceps cup and / or the second forceps cup comprises first protruding teeth and first grooves alternately distributed along the third direction, and each of the first protruding teeth and the first groove is configured to extend along the second direction; The insulating support member includes a second protruding tooth corresponding to at least a portion of the first protruding teeth, and a second groove corresponding to at least a portion of the first groove, and the second protruding tooth protrudes from the surface of the first protruding tooth.

10. The clamp head mechanism according to claim 9, characterized in that: The insulating support member is disposed on surfaces of the first protruding teeth and the first grooves.

11. The clamp head mechanism according to claim 1, characterized in that: The inner surface of the first clamp cup and / or the second clamp cup further includes a mounting groove, and the insulating support member is disposed in the mounting groove.

12. The clamp head mechanism according to claim 1, characterized in that: The insulating support member includes a support column, and the distance from the center of the support column to the distal end of the first clamp cup and / or the second clamp cup is smaller than the distance from the center of the support column to the proximal end of the first clamp cup and / or the second clamp cup.

13. The clamp head mechanism according to claim 12, characterized in that: The ratio of the distance from the center of the support column to the distal end of the first forceps cup and / or the second forceps cup to the distance from the center of the support column to the proximal end of the first forceps cup and / or the second forceps cup is in the range of 0.2 to 0.

43.

14. The clamp head mechanism according to claim 1, characterized in that: The distance that the insulating support member protrudes from the inner surface of the first clamp cup and / or the second clamp cup is in the range of 0.05 mm to 0.2 mm.

15. The clamp head mechanism according to claim 1, characterized in that: When the first forceps cup and the second forceps cup perform a closing operation, a minimum distance between the first forceps cup and the second forceps cup is in a range of 0.1 mm to 0.2 mm.

16. The clamp head mechanism according to claim 1, characterized in that: When the first forceps cup and the second forceps cup perform a closing operation, the distance between the first forceps cup and the second forceps cup increases from the distal end to the proximal end.

17. The clamp head mechanism according to claim 1, characterized in that: The inner surfaces of the first clamp cup and the second clamp cup are at least partially provided with a conductive area.

18. The clamp head mechanism according to any one of claims 1 or 17, characterized in that: The conductive area is at least partially disposed on the peripheral side surfaces of the first clamp cup and the second clamp cup.

19. The clamp head mechanism according to claim 1, characterized in that: The inner surfaces of the first clamp cup and the second clamp cup include a first clamping area and a second clamping area distributed along a third direction, the first clamping area is located at the distal end, the second clamping area is located at the proximal end, and the first clamping area and the second clamping area both include a first convex tooth and a first groove; In the first clamping area, the first protruding teeth of one of the first clamp cup and the second clamp cup are aligned with the first groove of the other; In the second clamping area, the first protruding tooth of one of the first clamp cup and the second clamp cup is arranged in alignment with the first protruding tooth of the other one.

20. The clamp head mechanism according to claim 19, characterized in that: The first clamping area includes a first sub-area and a second sub-area distributed along the second direction, In the first clamping area, the first protruding teeth include first sub-protruding teeth arranged in the first sub-area and second sub-protruding teeth arranged in the second sub-area, and the first sub-protruding teeth and the second sub-protruding teeth are staggered along the third direction.

21. The clamp head mechanism according to claim 1, characterized in that: The proximal ends of the first clamp cup and the second clamp cup are both provided with positioning posts, and the distal ends of the clamp cup seats are provided with positioning holes corresponding to the positioning posts one by one, and the positioning posts are rotatably matched with the positioning holes.

22. The clamp head mechanism according to claim 21, characterized in that: A conductive connection portion is disposed at the proximal end of the first forceps cup and the second forceps cup, and the conductive connection portion is configured to be electrically connected to the conductive traction portion.

23. The clamp head mechanism according to claim 22, characterized in that: The clamp head mechanism also includes a connecting piece, the distal end of the connecting piece includes a hanging platform, a fixing groove is provided in the clamp cup seat, and the hanging platform is hung with the fixing groove; The proximal end of the connector is provided with a clamping platform for connecting with the sheath tube, and the clamping platform includes a limiting surface facing the distal end.

24. The clamp head mechanism according to claim 1, characterized in that: The first clamp cup includes a first clamp head and a first clamp handle, and the second clamp cup includes a second clamp head and a second clamp handle; The clamp head mechanism comprises a connecting structure for connecting the first clamp head and the first clamp handle, and the second clamp head and the second clamp handle; The connection structure includes a first connection part and a second connection part, the first connection part is configured to electrically connect the first pliers head, the second pliers head and the conductive traction part, and the second connection part is configured to insulate and connect the first pliers handle, the second pliers handle and the conductive traction part.

25. The clamp head mechanism according to claim 24, characterized in that: The second connecting portion includes a connecting groove, the connecting groove passes through the first clamp handle and the second clamp handle, and the connecting groove is configured to be mechanically connected to the conductive traction portion.

26. The clamp head mechanism according to claim 25, characterized in that: In the first direction, the proximal opening and the distal opening of the connecting groove are respectively located on both sides of a hinge point where the proximal ends of the first clamp handle and the second clamp handle are hinged to the clamp cup seat.

27. The clamp head mechanism according to claim 25, characterized in that: The first clamp handle and the second clamp handle include a clamping block, the first clamp head and the second clamp head include a clamping slot, and the distal end opening of the connecting slot is at least partially located outside the clamping block.

28. The clamp head mechanism according to claim 27, characterized in that: The engaging groove includes a first groove portion and a second groove portion, the first groove portion is configured to be plugged with the engaging block, and the second groove portion is configured to be plugged with the conductive traction portion.

29. The clamp head mechanism according to claim 27, characterized in that: The first clamp head and the second clamp head further include a conductive connecting member; The engaging block is plugged into the engaging groove, and the conductive traction portion is plugged into the conductive connector.

30. The clamp head mechanism according to claim 25, characterized in that: The proximal ends of the first pliers head and the second pliers head include a plug-in block, the distal ends of the first pliers handle and the second pliers handle include a plug-in slot, and the first pliers head and the first pliers handle, the second pliers head and the second pliers handle are insulatedly connected via the plug-in block and the plug-in slot; An electrical plug hole is provided at the proximal end of the plug block, and the electrical plug hole is configured to be electrically connected to the conductive traction portion.

31. The clamp head mechanism according to claim 25, characterized in that: A cup handle hole is formed at the proximal ends of the first clamp handle and the second clamp handle, and the cup handle hole is configured to connect a traction wire.

32. The clamp head mechanism according to claim 24, characterized in that: The first clamp handle and the second clamp handle are made entirely of insulating material; or, The outer surfaces of the first clamp handle and the second clamp handle are covered with an insulating layer.

33. A clamp head mechanism, characterized in that: include: A clamp cup assembly, the clamp cup assembly comprising a first clamp cup and a second clamp cup arranged opposite to each other; wherein the first clamp cup comprises a first clamp head and a first clamp handle, and the second clamp cup comprises a second clamp head and a second clamp handle; a clamp cup seat, the clamp cup seat being configured to support the clamp cup assembly; A connection structure includes a first connection part and a second connection part, the first connection part is configured to electrically connect the first pliers head, the second pliers head and the conductive traction part, and the second connection part is configured to insulate and connect the first pliers handle, the second pliers handle and the conductive traction part.

34. The clamp head mechanism according to claim 33, characterized in that: The second connecting portion includes a connecting groove, the connecting groove passes through the first clamp handle and the second clamp handle, and the connecting groove is configured to be mechanically connected to the conductive traction portion.

35. The clamp head mechanism according to claim 34, characterized in that: In the first direction, the proximal opening and the distal opening of the connecting groove are respectively located on two sides of the hinge point where the proximal ends of the first clamp handle and the second clamp handle are hinged to the clamp cup seat; The first direction is perpendicular to the short axis direction and the long axis direction of the first forceps cup and / or the second forceps cup.

36. The clamp head mechanism according to claim 34, characterized in that: The first clamp handle and the second clamp handle include a clamping block, the first clamp head and the second clamp head include a clamping slot, and the distal end opening of the connecting slot is at least partially located outside the clamping block.

37. The clamp head mechanism according to claim 36, characterized in that: The engaging groove includes a first groove portion and a second groove portion, the first groove portion is configured to be plugged with the engaging block, and the second groove portion is configured to be plugged with the conductive traction portion.

38. The clamp head mechanism according to claim 36, characterized in that: The first clamp head and the second clamp head further include a conductive connecting member; The engaging block is plugged into the engaging groove, and the conductive traction portion is plugged into the conductive connector.

39. The clamp head mechanism according to claim 34, characterized in that: The proximal ends of the first pliers head and the second pliers head include a plug-in block, the distal ends of the first pliers handle and the second pliers handle include a plug-in slot, and the first pliers head and the first pliers handle, the second pliers head and the second pliers handle are insulatedly connected via the plug-in block and the plug-in slot; An electrical plug hole is provided at the proximal end of the plug block, and the electrical plug hole is configured to be electrically connected to the conductive traction portion.

40. The clamp head mechanism according to claim 34, characterized in that: A cup handle hole is formed at the proximal ends of the first clamp handle and the second clamp handle, and the cup handle hole is configured to connect a traction wire.

41. The clamp head mechanism according to claim 33, characterized in that: The first clamp handle and the second clamp handle are made entirely of insulating material; or, The outer surfaces of the first clamp handle and the second clamp handle are covered with an insulating layer.

42. The clamp head mechanism according to claim 33, characterized in that: Also includes: An insulating support member is disposed between the first clamp cup and the second clamp cup. When the first clamp cup and the second clamp cup perform a closing operation, the insulating support member separates the first clamp cup and the second clamp cup.

43. The clamp head mechanism according to claim 42, characterized in that: On the same projection plane, a projection of the insulating support member along the first direction partially covers a projection of the first clamp cup and / or the second clamp cup along the first direction.

44. The clamp head mechanism according to claim 42, characterized in that: On the same projection plane, a ratio of a projection area of ​​the insulating support member along the first direction to a projection area of ​​the first clamp cup and / or the second clamp cup along the first direction is in a range of 0.03 to 0.

4.

45. The clamp head mechanism according to claim 42, characterized in that: The ratio of the size of the insulating support member along the second direction to the size of the first clamp cup and / or the second clamp cup along the second direction is not greater than 0.27, and the second direction is the short axis direction of the first clamp cup and / or the second clamp cup.

46. ​​The clamp head mechanism according to claim 42, characterized in that: The distance between the insulating support and both sides of the first clamp cup and / or the second clamp cup along the second direction is not less than 0.95 mm.

47. The clamp head mechanism according to claim 42, characterized in that: The ratio of the dimension of the insulating support member along the third direction to the dimension of the first clamp cup and / or the second clamp cup along the third direction is not less than 0.23, and the third direction is the long axis direction of the first clamp cup and / or the second clamp cup.

48. The clamp head mechanism according to claim 47, characterized in that: The minimum support height of the insulating support member ranges from 0.4 mm to 0.7 mm.

49. A clamp head mechanism according to any one of claims 47 or 48, characterized in that: The support height of the insulating support member decreases from the distal end to the proximal end along the third direction; and / or, The thickness of the insulating support member protruding from the inner surface of the first clamp cup and / or the second clamp cup increases from the distal end to the proximal end.

50. The clamp head mechanism according to claim 42, characterized in that: The insulating support member includes second protruding teeth and second grooves alternately distributed along a third direction, and the third direction is the long axis direction of the first clamp cup and / or the second clamp cup.

51. The clamp head mechanism according to claim 42, characterized in that: The inner surface of the first forceps cup and / or the second forceps cup comprises first protruding teeth and first grooves alternately distributed along the third direction, and each of the first protruding teeth and the first groove is configured to extend along the second direction; The insulating support member includes a second protruding tooth corresponding to at least a portion of the first protruding teeth, and a second groove corresponding to at least a portion of the first groove, and the second protruding tooth protrudes from the surface of the first protruding tooth.

52. The clamp head mechanism according to claim 51, characterized in that: The insulating support member is disposed on surfaces of the first protruding teeth and the first grooves.

53. The clamp head mechanism according to claim 42, characterized in that: The inner surface of the first clamp cup and / or the second clamp cup further includes a mounting groove, and the insulating support member is disposed in the mounting groove.

54. The clamp head mechanism according to claim 42, characterized in that: The insulating support member includes a support column, and the distance from the center of the support column to the distal end of the first clamp cup and / or the second clamp cup is smaller than the distance from the center of the support column to the proximal end of the first clamp cup and / or the second clamp cup.

55. The clamp head mechanism according to claim 54, characterized in that: The ratio of the distance from the center of the support column to the distal end of the first forceps cup and / or the second forceps cup to the distance from the center of the support column to the proximal end of the first forceps cup and / or the second forceps cup is in the range of 0.2 to 0.

43.

56. The clamp head mechanism according to claim 42, characterized in that: The distance that the insulating support member protrudes from the inner surface of the first clamp cup and / or the second clamp cup is in the range of 0.05 mm to 0.2 mm.

57. The clamp head mechanism according to claim 33, characterized in that: When the first forceps cup and the second forceps cup perform a closing operation, a minimum distance between the first forceps cup and the second forceps cup ranges from 0.1 mm to 0.2 mm.

58. The clamp head mechanism according to claim 33, characterized in that: When the first forceps cup and the second forceps cup perform a closing operation, the distance between the first forceps cup and the second forceps cup increases from the distal end to the proximal end.

59. The clamp head mechanism according to claim 33, characterized in that: The inner surfaces of the first clamp cup and the second clamp cup are at least partially provided with a conductive area.

60. The clamp head mechanism according to any one of claims 33 or 59, characterized in that: The conductive area is at least partially disposed on the peripheral side surfaces of the first clamp cup and the second clamp cup.

61. The clamp head mechanism according to claim 33, characterized in that: The inner surface of the first clamp cup and / or the second clamp cup comprises a first clamping area and a second clamping area distributed along a third direction, the first clamping area is located at the distal end, the second clamping area is located at the proximal end, and the first clamping area and the second clamping area both comprise a first convex tooth and a first groove; In the first clamping area, the first protruding teeth of one clamp cup and the first groove of the other clamp cup are arranged in a corresponding position; In the second clamping area, the first protruding teeth of one clamp cup and the first protruding teeth of the other clamp cup are arranged in alignment.

62. The clamp head mechanism according to claim 61, characterized in that: The first clamping area includes a first sub-area and a second sub-area distributed along the second direction, In the first clamping area, the first protruding teeth include first sub-protruding teeth arranged in the first sub-area and second sub-protruding teeth arranged in the second sub-area, and the first sub-protruding teeth and the second sub-protruding teeth are staggered along the third direction.

63. A bipolar electrical treatment device, characterized in that: The invention comprises a clamp head mechanism, a conductive traction part, an electrical connection part and an operating part according to any one of claims 1 to 62, The distal end of the conductive traction portion is at least partially electrically connected to the clamp head mechanism, and the proximal end of the conductive traction portion is electrically connected to the electrical connection portion; The operating portion is electrically connected to the electrical connection portion, and the operating portion is at least configured to control the clamp head mechanism to open or close.

64. The bipolar electrical treatment device of claim 63, wherein: The distal end of the conductive traction portion is also mechanically connected to the clamp head mechanism, and the proximal end of the conductive traction portion is also mechanically connected to the operating portion.

65. The bipolar electrical treatment device of claim 64, wherein: The clamp head mechanism comprises a clamp cup, the clamp cup comprises a clamp head and a clamp handle, the distal end of the conductive traction portion is fixedly connected to the clamp handle and electrically connected to the clamp head; The connection position between the conductive traction portion and the clamp handle has a bending portion.

66. The bipolar electrical treatment device of claim 65, wherein: When the clamp head mechanism is closed, the bending radius of the bending portion is in the range of 0.4 mm to 0.6 mm; and When the clamp head mechanism is opened to the maximum, the bending radius of the bending portion ranges from 1 mm to 1.2 mm.

67. The bipolar electrical treatment device of claim 65, wherein: The position where the distal end of the conductive traction portion is fixedly connected to the clamp handle includes a universal joint.

68. The bipolar electrical treatment device of claim 65, wherein: The outer surface of the conductive traction part is covered with an insulating layer.

69. The bipolar electrical treatment device of claim 68, wherein: The pliers handle is made entirely of insulating material; or, The outer surface of the connection position between the conductive traction part and the clamp handle is covered with an insulating layer.

70. The bipolar electrical treatment device of claim 64, wherein: The clamp head mechanism comprises a clamp cup and a clamp cup seat, the clamp cup is hinged to the clamp cup seat, the distal end of the conductive traction part is fixedly connected to the proximal end of the clamp cup, and the fixed connection is an electrical connection.

71. The bipolar electrical treatment device of claim 70, wherein: In the first direction, the connection point where the distal end of the conductive traction portion is fixedly connected to the proximal end of the clamp cup is located on one side of the hinge point where the clamp cup is hinged to the clamp cup seat; The first direction is perpendicular to the short axis direction and the long axis direction of the forceps cup.

72. The bipolar electrical treatment device of claim 63, wherein: Also includes: The proximal end of the conductive traction portion extends into the electrical connector and is electrically connected to the electrical connector.

73. The bipolar electrical treatment device of claim 72, wherein: The conductive traction part includes two conductive traction wires, and the electrical connector includes an active electrode and a passive electrode. The active electrode and the passive electrode are respectively connected to a conductive traction wire.

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