High-frequency electrotome tong head assembly

Abstract

The utility model relates to a high-frequency electrotome forceps head assembly which comprises a fixed forceps head and a movable forceps head, a first clamping face is arranged on the fixed forceps head, and a second clamping face is arranged on the movable forceps head. A plurality of supporting protrusions are arranged on the first clamping face, and each supporting protrusion and the fixed tong head are of an integrated structure. A first insulating coating is arranged on the supporting surface of the supporting bulge; crN metal layers are deposited on the first clamping surface and the second clamping surface by vapor deposition; and second insulating coatings are arranged on the outer surfaces of the fixed tong head and the movable tong head. The supporting protrusions and the fixed plier head are integrally formed, and all the supporting protrusions are high in consistency and not prone to falling off. The design of the insulating coating prevents the outer surface of the jaw from discharging, and the operation safety is improved; by means of the CrN metal layer deposited on the clamping face, the requirement for electric conduction can be met, the surface hardness is high and can reach HRC65 or above, materials are resistant to adhesion, and the situation that tissue adheres to a jaw due to high temperature, and use below is hindered is prevented; and the insulating coating prevents the jaw from blood sticking and short circuit.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly to a high-frequency electrotome jaw assembly. Background Art

[0002] The working jaw of a high-frequency electrotome consists of two jaws, namely a fixed jaw and a movable jaw. The two jaws form a hinge point by a hinge pin. A closing pin drives the movable jaw to rotate around the hinge pin to realize the opening and closing of the jaws for clamping tissues and performing the working operation.

[0003] When the upper and lower jaws are in the closed state, there is a certain gap (i.e., the height after the clamped tissue is compressed). The contact surfaces between the upper and lower jaws and the tissue need to conduct electricity. When the current flows from the upper jaw through the tissue into the lower jaw (i.e., discharging), a large amount of heat is generated between the two jaws to coagulate the tissue by heating. In this way, the clamping belt of the jaws becomes a hemostatic belt, and no bleeding will occur when the cutting knife separates the wound surface from the middle. Currently, the high-frequency electrotome has the following problems:

[0004] 1. If the surfaces of the jaws of the upper and lower jaws (except for the clamped tissue) conduct electricity during operation, electric shock injury to non-surgical sites will occur on the jaws; short circuits caused by blood adhesion on the jaws will also occur, making it impossible to use normally.

[0005] 2. At the same time, a large amount of heat energy during operation will cause tissue carbonization and adhesion, which adheres to the jaws and affects the use effect, and it is time-consuming to clean.

[0006] 3. In order to increase the closing and locking effect of the jaws, theoretically, the gap between the upper and lower jaws after closing is a negative gap (i.e., preloading). However, in order to ensure that there is a gap after the jaws are closed, the traditional design is to inlay ceramic columns in the two jaws to support a gap. The ceramic insulation property is used to prevent the upper and lower jaws from forming a short circuit; this process has the following disadvantages: First, the inlaid ones are prone to loosen and fall off after a long time of stress; Second, it is difficult to control the inlaid height. The heights of multiple ceramic columns are inconsistent, resulting in non-universal gaps for mass production, uncontrollable gaps, and uncontrollable use effects. Summary of the Utility Model

[0007] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a high-frequency electrotome jaw assembly, so as to solve the problems that the ceramic columns inlaid in the jaws of the prior high-frequency electrotome jaw assembly are prone to loosen and the jaws are prone to harm human tissues during the operation.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] Provide a high-frequency electrotome jaw assembly, including

[0010] a fixed jaw and a movable jaw, and the movable jaw is rotationally connected to the fixed jaw through a spindle;

[0011] The fixed clamp head is provided with a first clamping surface, and the movable clamp head is provided with a second clamping surface;

[0012] A plurality of supporting protrusions are arranged on the first clamping surface, and each supporting protrusion is an integral structure with the fixed clamp head;

[0013] A first insulating coating is provided on the supporting surface of the supporting protrusion;

[0014] A CrN metal layer is vapor-deposited on the first clamping surface and the second clamping surface;

[0015] The outer surfaces of the fixed clamp head and the movable clamp head are provided with a second insulating coating.

[0016] Furthermore, the first insulating coating and the second insulating coating are both made of Parylene nano-polymer vacuum coating.

[0017] Furthermore, the layer depths of the first insulating coating layer and the second insulating coating layer are 0.1-100 microns.

[0018] The beneficial effects of the utility model are:

[0019] The high-frequency electric knife pliers head assembly of the utility model integrates the supporting protrusions and the fixed pliers head into one piece, and each supporting protrusion has high consistency and is not easy to fall off; the design of the insulating coating can prevent the closed contact of the jaws from causing a short circuit and making it impossible to continue to use; and the outer surface of the jaws from sticking with blood, etc., which can cause discharge or short circuit on the outer surface, thereby improving surgical safety; the CrN metal layer deposited on the clamping surface can meet the conductive requirements, and the surface hardness is high, which can reach HRC65 or above, and the material is anti-adhesion, which saves the time of cleaning the instrument and improves the product utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the high-frequency electric knife pliers head assembly of the utility model;

[0022] Figure 2 It is a schematic diagram of a fixed clamp head;

[0023] Figure 3 It is a schematic diagram of the movable clamp head;

[0024] Wherein, 1, fixed clamp head, 11, first clamping surface, 12, first outer surface;

[0025] 2. movable clamp head, 21. second clamping surface, 22. second outer surface;

[0026] 3. Support the protrusion. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0028] This application provides a high-frequency electrotome jaw assembly, which will be described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of this application. And in the following embodiments, each embodiment has its own emphasis. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0029] To solve the technical problems in the prior art that in a high-frequency electrotome jaw assembly, the ceramic column embedded in the jaw is prone to looseness and the jaw is likely to damage human tissues during the operation, an embodiment of this application provides a high-frequency electrotome jaw assembly. The following will be elaborated in detail.

[0030] As shown in Figures 1 to 3 , a high-frequency electrotome jaw assembly includes

[0031] a fixed jaw 1 and a movable jaw 2, and the movable jaw 2 is rotationally connected to the fixed jaw 1 through a spindle;

[0032] The fixed jaw 1 is provided with a first clamping surface 11 and a first outer surface 12;

[0033] The movable jaw 2 is provided with a second clamping surface 21 and a second outer surface 22;

[0034] A plurality of support protrusions 3 are arranged on the first clamping surface 11, and each support protrusion is an integral structure with the fixed jaw 1;

[0035] A first insulating coating is arranged on the support surface of the support protrusion 3;

[0036] A CrN metal layer is deposited by vapor deposition on the first clamping surface 11 and the second clamping surface 21;

[0037] A second insulating coating is arranged on the first outer surface 12 and the second outer surface 22.

[0038] The first outer surface 12 and the second outer surface 22 refer to the surfaces located outside the jaw body, specifically referring to the areas that will come into contact with the human body.

[0039] Specifically, as an optional implementation manner in this embodiment, both the first insulating coating and the second insulating coating adopt parylene nano-polymer vacuum coating.

[0040] In this embodiment, the layer depth of the first insulating coating and the second insulating coating is 0.1 - 100 microns.

[0041] In this embodiment, the Parylene coating and the PVD medical coating are both common coating methods for medical devices. The processed parts are not affected in size, and the process materials used all meet the medical biocompatibility standards. At the same time, the parts processed can change the local properties to make it easier to achieve the expected use.

[0042] The CrN metal layer can conduct electricity, and the surface hardness can reach above HRC65 to increase the surface hardness. This material also has anti-adhesion properties, thus solving the problem of conductive adhesion of the jaws.

[0043] Each device (components without specific structures described) selected in this application is a general standard component or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0044] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0047] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0048] In addition, in each embodiment of the present utility model, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0049] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-frequency electric knife pliers head assembly, characterized in that: include A fixed clamp head (1) and a movable clamp head (2), wherein the movable clamp head (2) is rotatably connected to the fixed clamp head (1) via a pinion; The fixed clamp head (1) is provided with a first clamping surface (11), and the movable clamp head (2) is provided with a second clamping surface (21); A plurality of supporting protrusions (3) are arranged on the first clamping surface (11), and each supporting protrusion is an integral structure with the fixed clamp head (1); A first insulating coating is provided on the supporting surface of the supporting protrusion (3); A CrN metal layer is formed on the first clamping surface (11) and the second clamping surface (21) by vapor deposition; The outer surfaces of the fixed clamp head (1) and the movable clamp head (2) are provided with a second insulating coating.

2. The high-frequency electric knife pliers head assembly according to claim 1, characterized in that: The first insulating coating and the second insulating coating are both made of Parylene nano polymer vacuum coating.

3. The high-frequency electric knife pliers head assembly according to claim 1, characterized in that: The layer depth of the first insulating coating layer and the second insulating coating layer is 0.1-100 micrometers.

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