A jaw module and surgical instrument

Abstract

The present invention belongs to the technical field of medical devices, and discloses a jaw module and a surgical instrument, including a first jaw unit and a second jaw unit, wherein the first jaw unit and the second jaw unit form a jaw on one side facing each other, and the jaw can be in an open state or a closed state, and the first jaw unit includes a first insulating component and a first jaw body, and the first insulating component includes a first insulating column; the first jaw body is a conductor, and the first jaw body is connected to the side of the first insulating component away from the second jaw unit, and a first through hole is provided on the first jaw body, and a first insulating column is penetrated through the first through hole, and the first insulating column protrudes from the surface of the first jaw body facing the second jaw unit, so that when the jaw is in a closed state, there is a gap between the first jaw unit and the second jaw unit. The present invention can form a gap between the first jaw unit and the second jaw unit by setting the first insulating column, and has a simple structure, simplified process, and reduced cost.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a jaw module and a surgical instrument. Background Art

[0002] At present, a variety of energy sources such as radio frequency (RF) sources, ultrasound sources and lasers have been developed for coagulating, sealing or connecting tissue blocks in open and laparoscopic surgical operations. The high-frequency energy surgical instrument in the surgical instrument includes a jaw module, which includes two clamps that can form a jaw. When the jaws are closed, the tissue can be clamped. Electric energy or ultrasonic energy is applied to the captured tissue through the clamps to denature the protein in the tissue, and the protein is mixed and fused together when it is renatured. In the non-surgical state, the jaws are closed, and the conductor surfaces of the clamps close to each other should be separated by a certain distance to prevent short circuit; in the surgical state, the tissue in the jaws connects the conductors of the two clamps, which can achieve tissue sealing and coagulation.

[0003] In the prior art, ceramic protrusions are added to the conductor surface of the clamped conductor by using a ceramic high-speed spraying process or a ceramic dripping process to separate the conductors by a certain distance; however, the process is complicated, difficult to implement, and has a high cost. Summary of the invention

[0004] The object of the present invention is to provide a jaw module and a surgical instrument with a simple structure, simplified process and reduced cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In one aspect, a jaw module is provided, comprising a first jaw unit and a second jaw unit, wherein the first jaw unit and the second jaw unit form a jaw facing each other, and the jaw can be in an open state or a closed state, and the first jaw unit comprises:

[0007] A first insulating assembly including a first insulating column;

[0008] The first clamp body is a conductor, and the first clamp body is connected to the side of the first insulating component facing away from the second clamp unit. The first clamp body is provided with a first through hole, and the first insulating column is passed through the first through hole, and the first insulating column protrudes from the surface of the first clamp body facing the second clamp unit, so that when the jaws are in a closed state, there is a gap between the first clamp unit and the second clamp unit.

[0009] Optionally, the first insulating assembly includes a first insulating block, the first insulating column is disposed on the first insulating block, and the first insulating block is connected to the first clamp body.

[0010] Optionally, the first insulating component further includes a first injection-molded part, and the first insulating block is connected to the first clamp body through the first injection-molded part.

[0011] Optionally, the first clamp body includes a first groove, at least part of the first insulating block is arranged in the first groove, and the first injection molded part is connected to the outer peripheral surface of the first clamp body, so that the first insulating block is arranged in the accommodating cavity formed by the first injection molded part and the first clamp body.

[0012] Optionally, it further includes a first mounting frame, the first injection molded part connects the first mounting frame, the first clamp body and the first insulating block, and the first insulating block is arranged between the first mounting frame and the first clamp body.

[0013] Optionally, the first mounting frame includes a second groove, the notch of the first groove faces the notch of the second groove, the first insulating block includes a mounting plate and a protrusion arranged on the mounting plate, the mounting plate is arranged in the first groove, the protrusion is arranged in the second groove, and the first mounting frame is enclosed between the first injection molded part and the first insulating block.

[0014] Optionally, a first buffer pad is further included, and the first buffer pad is arranged between the first mounting frame and the first insulating block.

[0015] Optionally, the first insulating assembly includes a plurality of first insulating columns, and the plurality of first insulating columns are arranged at intervals.

[0016] Optionally, the second clamp unit includes a second insulating component and a second clamp body connected to the second insulating component, the second clamp body is a conductor, the first clamp body and the second clamp body are arranged facing each other, and among the first insulating component and the second insulating component, only the first insulating component is provided with a first insulating column.

[0017] On the other hand, a surgical instrument is provided, comprising the jaw module described above.

[0018] Beneficial effects of the present invention:

[0019] The present invention provides a jaw module and a surgical instrument, which can clamp tissue when the jaws are closed and release tissue when the jaws are opened. By setting a first insulating column protruding from the surface of the first jaw body, a gap is formed between the first jaw unit and the second jaw unit when the jaws are closed. After energy excitation, a uniform and stable current can be generated between the first jaw unit and the second jaw unit to coagulate the blood vessel, so that the jaw module has a good use effect. The first insulating column is passed through the first through hole on the first jaw body, so that it can reach the purpose of protruding from the surface of the first jaw body, so that when the jaws are in a closed state, the first insulating column extends out of the first through hole and the part protruding from the first jaw body is supported between the first jaw unit and the second jaw unit, so that a gap is formed between the first jaw unit and the second jaw unit, and the structure is simple; and by adopting the above structure, the use of the prior art of performing a ceramic high-speed spraying process or a ceramic dripping process on the surface of the first jaw body is avoided, thereby simplifying the production process and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a jaw module provided by a specific embodiment of the present invention;

[0021] Figure 2 is an exploded view of a jaw module provided by a specific embodiment of the present invention;

[0022] Figure 3 is an exploded view of a first clamp unit provided in a specific embodiment of the present invention;

[0023] Figure 4 is a cross-sectional view of a portion of a first clamp unit provided by a specific embodiment of the present invention;

[0024] Figure 5 is a structural schematic diagram of a first clamp body provided by a specific embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of a first insulating block and a first insulating column provided in a specific embodiment of the present invention.

[0026] In the figure:

[0027] 1. first clamp unit; 11. first insulating assembly; 111. first insulating column; 112. first insulating block; 1121. mounting plate; 1122. protrusion; 1123. second through slot; 113. first injection molded part; 12. first clamp body; 121. first through hole; 122. first groove; 123. first through slot; 13. first mounting frame; 131. first handle; 14. first buffer pad;

[0028] 2. Second clamp unit; 21. Second insulating component; 22. Second clamp body; 23. Second handle. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] This embodiment provides a surgical instrument, including a jaw module. To reduce the difficulty of manufacturing the jaw module and reduce the cost, this embodiment also provides a jaw module, which includes a first jaw unit 1 and a second jaw unit 2. Specifically, Figure 1-Figure 3 As shown, the first clamp unit 1 and the second clamp unit 2 form a jaw on one side facing each other, and the jaw can be in an open state or a closed state. The first clamp unit 1 includes a first insulating component 11 and a first clamp body 12; specifically, the first insulating component 11 includes a first insulating column 111; the first clamp body 12 is a conductor, and the first clamp body 12 is connected to the side of the first insulating component 11 away from the second clamp unit 2. A first through hole 121 is opened on the first clamp body 12, and the first insulating column 111 is penetrated by the first through hole 121, and the first insulating column 111 protrudes from the surface of the first clamp body 12 facing the second clamp unit 2, so that when the jaw is in a closed state, there is a gap between the first clamp unit 1 and the second clamp unit 2.

[0033] In this embodiment, the shell device can be used for coagulation and sealing of different body parts, tissues or blood vessels. For the convenience of description, the body parts to be clamped are collectively referred to as tissues, and coagulation, sealing or connection are collectively referred to as coagulation.

[0034] The jaws can clamp tissue when they are closed, and can release tissue when they are opened. By providing a first insulating column 111 protruding from the surface of the first jaw body 12, a gap is formed between the first jaw unit 1 and the second jaw unit 2 when the jaws are closed. After energy excitation, a uniform and stable current can be generated between the first jaw unit 1 and the second jaw unit 2 to coagulate the blood vessel, so that the jaw module has a good use effect. The first insulating column 111 is passed through the first through hole 121 on the first jaw body 12, so that it can reach the purpose of protruding from the surface of the first jaw body 12, so that when the jaws are in a closed state, the first insulating column 111 extends out of the first through hole 121 and the part protruding from the first jaw body 12 is supported between the first jaw unit 1 and the second jaw unit 2, so that a gap is formed between the first jaw unit 1 and the second jaw unit 2, and the structure is simple; and by adopting the above structure, the use of the prior art of performing a ceramic high-speed spraying process or a ceramic dripping process on the surface of the first jaw body 12 is avoided, thereby simplifying the production process and reducing the cost. In addition, in addition to ensuring the gap, the first insulating column 111 also has the function of increasing the friction between the jaws and the tissue, thereby improving the clamping reliability.

[0035] Specifically, the first clamp body 12 is connected to a side of the first insulating component 11 facing away from the second clamp unit 2 , so that a side of the first clamp body 12 facing the second clamp unit 2 can be exposed to clamp tissue.

[0036] Specifically, the specific distance that the first insulating column 111 is higher than the surface of the first clamp body 12 can refer to the prior art and will not be described in detail. Specifically, the first insulating column 111 can be cylindrical in shape, and in other embodiments, it can also be conical, regular or irregular, etc., and can extend through the first through hole 121 and form a gap between the first clamp unit 1 and the second clamp unit 2, without limitation.

[0037] Generally, the first through hole 121 can be used for the first insulating column 111 to pass through, so as to avoid the structural area of ​​the first clamp body 12 being reduced due to the excessive diameter of the first through hole 121. The effective area of ​​the first clamp body 12 structure formed around it should still be able to form a current of sufficient intensity / area when the first clamp unit 1 and the second clamp unit 2 are excited, so as to ensure a good coagulation effect. Specifically, the size of the first through hole 121 can be set according to actual conditions.

[0038] Alternatively, if Figure 3-Figure 6 As shown, the first insulating assembly 11 includes a first insulating block 112, a first insulating column 111 is disposed on the first insulating block 112, and the first insulating block 112 is connected to the first clamp body 12. The first insulating block 112 is used to provide structural support for the first insulating column 111, so that the first insulating column 111 is stably installed on the first clamp body 12 through the first insulating block 112, and the structure is stable and easy to install. Further, the first insulating column 111 and the first insulating block 112 can be an integral structure or a split structure. In this embodiment, the first insulating column 111 and the first insulating block 112 are an integrally formed ceramic structure.

[0039] Alternatively, if Figure 3 and Figure 4 As shown, the first insulating component 11 also includes a first injection molded part 113, and the first insulating block 112 is connected to the first clamp body 12 through the first injection molded part 113. The first insulating block 112 is first installed on the first clamp body 12, and then the injection mold is used to encapsulate the first insulating block 112 to form the first injection molded part 113 and connect the first insulating block 112 and the first clamp body 12; the connection reliability is good, and the encapsulation on the first clamp body 12 is generally made of plastic and other materials, which has insulation properties, can prevent the first clamp body 12 from leaking electricity, and improve safety.

[0040] Alternatively, if Figure 3 and Figure 4 As shown, the first clamp body 12 includes a first groove 122, at least a portion of the first insulating block 112 is arranged in the first groove 122, and the first injection molded part 113 is connected to the outer peripheral surface of the first clamp body 12 to form a receiving cavity with the first clamp body 12, so that the first insulating block 112 is arranged in the receiving cavity, completely covering the first insulating block 112, protecting the first insulating block 112, and the structure is more solid; further, the first injection molded part 113 is filled in the first groove 122, and the groove wall of the first groove 122 and the structure formed by the first injection molded part 113 can limit the displacement of the first insulating block 112, and the contact area with the first injection molded part 113 can be increased by setting the groove wall, thereby further improving the connection reliability.

[0041] Alternatively, if Figure 3 and Figure 4As shown, the first clamp unit 1 also includes a first mounting frame 13, a first injection molded part 113 connecting the first mounting frame 13, the first clamp body 12 and the first insulating block 112, the first insulating block 112 is arranged between the first mounting frame 13 and the first clamp body 12, and the first mounting frame 13 plays a role in supporting the first insulating component 11 and the first clamp body 12, thereby improving the overall structural strength; specifically, the first mounting frame 13 can be a metal bracket with high structural strength, and the first insulating block 112 is arranged between the first mounting frame 13 and the first clamp body 12, and can insulate and isolate the first mounting frame 13 and the first clamp body 12 to prevent power generation. During manufacturing, the first insulating block 112 is arranged between the first mounting frame 13 and the first clamp body 12, and then the injection mold is used to encapsulate the first injection molded part 113 and connect the first mounting fixture, the first insulating block 112 and the first clamp body 12.

[0042] Alternatively, if Figure 3 and Figure 4 As shown, the first mounting frame 13 includes a second groove, the notch of the first groove 122 faces the notch of the second groove, the first insulating block 112 includes a mounting plate 1121 and a protrusion 1122 arranged on the mounting plate 1121, the mounting plate 1121 is arranged in the first groove 122, the protrusion 1122 is arranged in the second groove, the first mounting frame 13 is covered between the first injection molded part 113 and the first insulating block 112, the groove wall of the second groove can limit the displacement of the first insulating block 112, so that the installation is stable, and the periphery of the first mounting frame 13 is connected to the first injection molded part 113, increasing the contact area and improving the connection reliability. The notch size of the first groove 122 is larger than the notch size of the second groove, and under the condition of ensuring that the surface effective area of ​​the first clamp body 12 meets the use requirements, the size of the first mounting frame 13 and the first insulating component 11 is avoided to be too large, so that the structure is compact and easy to operate; and the size is reduced, and the cost is reduced. Furthermore, the first insulating block 112 is in a convex shape, so that the first notch and the second notch are arranged opposite to each other, thereby preventing the overall structure from being too large in size in the width direction of the notch.

[0043] Alternatively, if Figure 3 and Figure 4As shown, the first clamp unit 1 also includes a first buffer pad 14, which is arranged between the first mounting frame 13 and the first insulating block 112. In the process of using the injection mold gluing mold, the force is transmitted to the upper mold, the upper mold presses the upper surface of the first mounting frame 13, and is transmitted to the first insulating block 112 through the first buffer pad 14, and then transmitted to the first clamp body 12. The surface of the first clamp body 12 contacts the lower mold. The upper mold and the lower mold are used to ensure that the surface of the first clamp body 12 meets the flatness requirements to ensure excellent working effects. In this process, if the first buffer pad 14 is not provided, the first mounting frame 13 is directly in contact with the first insulating block 112, and the force acts on the first insulating block 112, which may cause the first insulating block 112 to break. The first buffer pad 14 is provided to reduce the probability of breakage and improve the product yield.

[0044] In this embodiment, Figure 4 As shown, the first buffer pad 14 is disposed between the bottom of the second groove and the protrusion 1122. Specifically, the cross-section of the first buffer pad 14 can be circular, rectangular, other regular shapes or irregular shapes, etc., without limitation. Specifically, the first buffer pad 14 can be a rubber pad or a pad of other materials.

[0045] Alternatively, if Figure 3 , Figure 5 and Figure 6 As shown, the first insulating component 11 includes a plurality of first insulating columns 111, and the plurality of first insulating columns 111 are arranged at intervals to ensure that the first clamp unit 1 and the second clamp unit 2 are evenly spaced apart, thereby forming a uniform current to ensure a good coagulation effect. Figure 5 and Figure 6 As shown, a plurality of first through holes 121 are provided on the first clamp body 12, and the plurality of first through holes 121 are spaced apart at the front end, the middle end, and the rear end in the length direction of the first clamp body 12, and are evenly distributed on the left and right sides in the width direction of the first clamp body 12. Accordingly, a plurality of first insulating columns 111 are distributed on the first insulating block 112, and the plurality of first insulating columns 111 and the plurality of first through holes 121 are arranged one by one, so that the plurality of first insulating columns 111 are evenly supported on the surface of the first clamp body 12, so that when the jaws are closed, a uniform interval is formed between the first clamp unit 1 and the second clamp unit 2.

[0046] Optionally, the second clamp unit 2 may also adopt an existing structure, which will not be described in detail. In this embodiment, the second clamp unit 2 includes a second insulating component 21 and a second clamp body 22 connected to the second insulating component 21, and the second clamp body 22 is a conductor. Specifically, the first clamp body 12 and the second clamp body 22 are both stainless steel conductors.

[0047] In this embodiment, Figure 2 As shown, the first clamp body 12 and the second clamp body 22 are arranged toward each other, and of the first insulating component 11 and the second insulating component 21, only the first insulating component 11 is provided with the first insulating column 111, and the surface of the second clamp unit 2 does not need to be provided with a protrusion 1122 structure, which can also ensure that a gap is formed between the first clamp body 12 and the second clamp body 22, simplifying the structure of the second clamp unit 2, simplifying its processing technology, and thus reducing costs. In other embodiments, a second insulating column (not shown in the figure) is provided on the second insulating component 21, and the second insulating column extends out of the surface of the second clamp body 22, the first insulating column 111 and the second insulating column are staggered, and the first insulating column 111 and the second insulating column extend in the same size, which is the spacing distance between the first clamp body 12 and the second clamp body 22. The first insulating column 111 and the second insulating column are simultaneously supported between the first clamp body 12 and the second clamp body 22, so that a uniform gap is formed, and the first insulating column 111 and the second insulating column simultaneously become support structures, increasing the number of support structures, and the support is more reliable.

[0048] Specifically, the first clamping unit 1 and the second clamping unit 2 can be symmetrical structures, and only the first clamping unit 1 is provided with the first insulating column 111 and the first through hole 121; or the first clamping unit 1 and the second clamping unit 2 can be symmetrical structures, and the only difference is that the first clamping unit 1 is provided with the first insulating column 111 and the first through hole 121, and the second clamping unit 2 is provided with the second insulating column and the second through hole (not shown in the figure), and the first insulating column 111 and the second insulating column are staggered.

[0049] Alternatively, if Figure 1 and Figure 2 As shown, the first clamp unit 1 and the second clamp unit 2 are rotatably connected to achieve the function of opening and closing the jaws; further, the first clamp unit 1 includes a first handle portion 131, and the second clamp unit 2 includes a second handle portion 23, and the first handle portion 131 and the second handle portion 23 are rotatably connected, thereby realizing the rotatable connection between the first clamp unit 1 and the second clamp unit 2, which is convenient for operation. Further, the first handle portion 131 is extended and arranged on the first mounting frame 13; specifically, the second clamp unit 2 also includes a second mounting frame (not shown in the figure), and the second mounting frame is connected to the second insulating component 21 of the second clamp body 22. The specific mounting structure can refer to the first mounting frame 13 to improve the overall structural strength of the second clamp unit 2, and the second handle portion 23 is extended and arranged on the second mounting frame; in this embodiment, the first handle portion 131 and the second handle portion 23 are connected by a pin (not shown in the figure).

[0050] Optionally, the surfaces of the first clamp body 12 and the second clamp body 22 have evenly distributed pits to increase the contact area between the first clamp body 12 and the second clamp body 22 and the tissue clamped between the jaws, thereby increasing friction and preventing the tissue from slipping out of the jaws during operation, thereby providing high reliability.

[0051] In addition to the function of blood coagulation, the surgical instrument can also be used for cutting. The combination of the two makes it more convenient to use. Optionally, the surgical instrument also includes a cutting blade (not shown in the figure); specifically, Figure 4-Figure 6 As shown, the first clamp body 12 is provided with a first through slot 123, and the second clamp body 22 is provided with a second through slot 1123. The first through slot 123 and the second through slot 1123 are connected, and the first through slot 123 and the second through slot 1123 can form a gap, which is used as a passage for the cutting blade to slide. Specifically, in the initial state, the cutting blade is not in the gap, and after the blood vessel or tissue is coagulated, the cutting blade passes through the passage for cutting.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A jaw module, characterized in that: The invention comprises a first clamp unit (1) and a second clamp unit (2), wherein the first clamp unit (1) and the second clamp unit (2) form a jaw facing each other, and the jaw can be in an open state or a closed state, and the first clamp unit (1) comprises: A first insulating component (11), comprising a first insulating column (111); A first clamp body (12) which is a conductor. The first clamp body (12) is connected to a side of the first insulating component (11) facing away from the second clamp unit (2). The first clamp body (12) is provided with a first through hole (121). The first insulating column (111) is passed through the first through hole (121). The first insulating column (111) protrudes from a surface of the first clamp body (12) facing the second clamp unit (2), so that when the jaws are in a closed state, there is a gap between the first clamp unit (1) and the second clamp unit (2); The first insulating component (11) comprises a first insulating block (112), the first insulating column (111) is arranged on the first insulating block (112), and the first insulating block (112) is connected to the first clamp body (12); The first insulating component (11) further comprises a first injection molded part (113), and the first insulating block (112) is connected to the first clamp body (12) via the first injection molded part (113); The first clamp body (12) comprises a first groove (122), at least a portion of the first insulating block (112) is arranged in the first groove (122), and the first injection molded part (113) is connected to the outer peripheral surface of the first clamp body (12), so that the first insulating block (112) is arranged in a receiving cavity formed by the first injection molded part (113) and the first clamp body (12); The clamp further comprises a first mounting frame (13), the first injection molded part (113) connecting the first mounting frame (13), the first clamp body (12) and the first insulating block (112), the first insulating block (112) being arranged between the first mounting frame (13) and the first clamp body (12); the first mounting frame (13) comprising a second groove, the notch of the first groove (122) facing the notch of the second groove, the first insulating block (112) comprising a mounting plate (1121) and a protrusion (1122) arranged on the mounting plate (1121), the mounting plate (1121) being arranged in the first groove (122), the protrusion (1122) being arranged in the second groove, and the first mounting frame (13) being covered between the first injection molded part (113) and the first insulating block (112); It also comprises a first buffer pad (14), wherein the first buffer pad (14) is arranged between the first mounting frame (13) and the first insulating block (112).

2. The jaw module according to claim 1, characterized in that: The first insulating component (11) comprises a plurality of first insulating columns (111), and the plurality of first insulating columns (111) are arranged at intervals.

3. The jaw module according to any one of claims 1 to 2, characterized in that: The second clamp unit (2) comprises a second insulating component (21) and a second clamp body (22) connected to the second insulating component (21); the second clamp body (22) is a conductor; the first clamp body (12) and the second clamp body (22) are arranged facing each other; and of the first insulating component (11) and the second insulating component (21), only the first insulating component (11) is provided with the first insulating column (111).

4. A surgical instrument, characterized in that: Comprising the jaw module described in any one of claims 1-3.

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