Jaw structure of ultrasonic scalpel

Abstract

The utility model belongs to the technical field of ultrasonic scalpels, and particularly relates to a jaw structure of an ultrasonic scalpel, which comprises a scalpel head body, a jaw body and a tissue gasket, the jaw body is arranged to be opened and closed relative to the scalpel head body, a mounting groove is arranged on one side of the jaw body facing the scalpel head body, and the tissue gasket is arranged in the mounting groove. The periphery of the tissue gasket is in contact limiting with the periphery of the mounting groove, the bottom surface of the tissue gasket is in contact limiting with the bottom surface of the mounting groove, a plurality of mounting parts are arranged on the tissue gasket and are sequentially arranged around the periphery of the tissue gasket, and holes matched with the mounting parts are formed in the periphery of the mounting groove; a pressing area is arranged on the outer surface, opposite to the mounting groove, of the jaw body, and when the pressing area is pressed, the tissue gasket is ejected out of the mounting groove by the pressing area. The tissue gasket of the jaw structure is quite firm in installation and quite convenient to assemble and disassemble, and even the tissue gasket can be replaced in the operation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic scalpels, and particularly relates to a jaw structure of an ultrasonic scalpel. Background Art

[0002] With the development of endoscopic minimally invasive surgery, ultrasonic scalpels have the advantages of coagulating and stopping bleeding while cutting tissues, so that ultrasonic scalpels are widely used in surgical operations and become essential surgical instruments in various surgical operations. The amplitude of the ultrasonic knife head of the ultrasonic scalpel is very small, but the vibration frequency is extremely high, thus generating a very high instantaneous acceleration. When cutting soft tissues, the affected part can be quickly cut open without damaging the surrounding tissues. At the same time, when the ultrasonic knife head contacts the tissue, microacoustic flow effect, cavitation effect, thermal effect and coagulation and hemostasis effects will also be generated.

[0003] The ultrasonic knife head includes a knife head main body 100 and a jaw main body 200. As Figure 1 shown, the jaw main body 200 opens and closes relative to the knife head main body 100 to clamp tissues. A jaw gasket is arranged on the surface of the jaw main body 200 opposite to the knife head main body 100. The existing jaw gasket has the following defects: the jaw gasket is not firmly arranged and is easy to fall off, seriously causing medical accidents; the jaw gasket is a component that is easy to wear and needs to be frequently replaced. Currently, it is necessary to remove the jaw main body 200 to replace the jaw gasket, and the replacement is very inconvenient; the friction of the jaw gasket is small, and it is not easy to clamp tissues, increasing the surgical difficulty of medical staff. Content of the Utility Model

[0004] In order to solve the problems existing in the prior art that the jaw gasket of the ultrasonic scalpel is not firmly arranged and the replacement is inconvenient, the utility model provides a jaw structure of an ultrasonic scalpel.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows. A jaw structure of an ultrasonic scalpel includes a knife head body, a jaw body and a tissue gasket. The jaw body is arranged to open and close relative to the knife head body. An installation groove is formed on the surface of the jaw body facing the knife head body. The tissue gasket is arranged in the installation groove. The periphery of the tissue gasket is in contact with and limited by the periphery of the installation groove, and the bottom surface of the tissue gasket is in contact with and limited by the bottom surface of the installation groove. A plurality of installation parts are arranged on the tissue gasket, and the plurality of installation parts are sequentially arranged around the periphery of the tissue gasket. Holes matching the installation parts are formed on the periphery of the installation groove. A pressing area is arranged on the outer surface of the jaw body opposite to the installation groove. When the pressing area is pressed, the tissue gasket is pushed out of the installation groove by the pressing area.

[0006] Preferably, the number of the plurality of mounting portions is four, and the four mounting portions are sequentially arranged around the periphery of the tissue gasket. This can not only ensure that the tissue gasket is firmly and stably limited in the mounting groove, effectively preventing the tissue gasket from shifting or even falling off, but also not overly limit the tissue gasket, so as to ensure that the tissue gasket can be ejected from the mounting groove by the pressing area when pressing the pressing area.

[0007] Preferably, the surface of the tissue gasket facing the cutter head body is the working surface, the working surface protrudes from the jaw body, and anti-slip saw teeth are arranged on the working surface, and the anti-slip saw teeth are arranged in sequence from back to front. This greatly improves the friction of the jaw gasket, ensuring that the jaw structure can easily, reliably and stably hold the tissue, and greatly improving the operation success rate of medical staff.

[0008] Furthermore, the tooth shape of the anti-slip saw teeth is inclined downward from back to front. The anti-slip saw teeth make the working surface of the tissue gasket not only have a large friction force, but also have a diversion effect to effectively drain liquid.

[0009] Preferably, the material of the jaw body is metal, and the material of the tissue gasket is polytetrafluoroethylene.

[0010] Beneficial effects: For the jaw structure of the ultrasonic scalpel of the present invention, when installing the tissue gasket: just face the tissue gasket to the mounting groove and press the tissue gasket towards the mounting groove until the tissue gasket falls into the mounting groove. At this time, the periphery of the tissue gasket contacts and limits with the periphery of the mounting groove, the bottom surface of the tissue gasket contacts and limits with the bottom surface of the mounting groove, and the plurality of mounting portions are inserted into the corresponding holes one by one to complete the installation of the tissue gasket. The installation of the tissue gasket is very firm and the installation operation is convenient; when disassembling the tissue gasket: just press the pressing area of the jaw body, and the tissue gasket is ejected from the mounting groove by the pressing area to complete the disassembly of the tissue gasket, and the disassembly operation is very convenient. As described above, the loading and unloading of the tissue gasket are very convenient, and the tissue gasket can even be replaced during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0012] Figure 1 is a side view schematic diagram of an existing ultrasonic cutter head;

[0013] Figure 2 is a three-dimensional structure schematic diagram of the jaw structure of the ultrasonic scalpel of the present invention;

[0014] Figure 3 is an exploded view of the jaw structure of the ultrasonic scalpel of the present utility model;

[0015] Figure 4 is an exploded view of the jaw structure of the ultrasonic scalpel of the present utility model from another angle;

[0016] Figure 5 is a cross-sectional view of the jaw structure of the ultrasonic scalpel of the present utility model;

[0017] In the figure:

[0018] Prior art: 100, tool head body; 200, jaw body;

[0019] This application: 1, jaw body; 11, installation groove; 12, hole; 13, pressing area; 2, tissue gasket; 21, installation part; 22, anti-slip serrations. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0021] Embodiment:

[0022] As Figures 2 to 5 shown, a jaw structure of an ultrasonic scalpel includes a tool head body, a jaw body 1 and a tissue gasket 2. The jaw body 1 is arranged to open and close relative to the tool head body. An installation groove 11 is formed on the surface of the jaw body 1 facing the tool head body. The tissue gasket 2 is arranged in the installation groove 11. The periphery of the tissue gasket 2 is in contact with and limited by the periphery of the installation groove 11, and the bottom surface of the tissue gasket 2 is in contact with and limited by the bottom surface of the installation groove 11. A plurality of installation parts 21 are arranged on the tissue gasket 2, and the plurality of installation parts 21 are arranged in sequence around the periphery of the tissue gasket 2. Holes 12 matching the installation parts 21 are formed around the installation groove 11. A pressing area 13 is arranged on the outer surface of the jaw body 1 opposite to the installation groove 11. When the pressing area 13 is pressed, the tissue gasket 2 is pushed out of the installation groove 11 by the pressing area 13. In this embodiment, the material of the jaw body 1 is metal 304, and the material of the tissue gasket 2 is polytetrafluoroethylene. For the convenience of description, in this embodiment, it is assumed that the operator's arm faces backward and the operator's fingers face forward.

[0023] Specifically, in this embodiment, the number of the plurality of mounting portions 21 is four, and the four mounting portions 21 are sequentially arranged around the tissue gasket 2, which can not only ensure that the tissue gasket 2 is firmly and stably limited in the mounting groove 11, effectively preventing the tissue gasket 2 from shifting or even falling off, but also does not overly limit the tissue gasket 2, so as to ensure that when the pressing area 13 is pressed, the tissue gasket 2 can be pushed out of the mounting groove 11 by the pressing area 13.

[0024] Specifically, in this embodiment, the surface of the tissue gasket 2 facing the cutter head body is the working surface, and the working surface protrudes above the jaw body 1. Anti-slip sawteeth 22 are arranged on the working surface, and the anti-slip sawteeth 22 are arranged in sequence from back to front, greatly improving the friction force of the jaw gasket and ensuring that the jaw structure can easily, reliably and stably clamp the tissue, greatly improving the operation success rate of medical staff; further, in this embodiment, the tooth shape of the anti-slip sawteeth 22 is inclined downward from back to front, and the anti-slip sawteeth 22 make the working surface of the tissue gasket 2 not only have a large friction force, but also have a diversion function to effectively discharge liquid.

[0025] The installation process of the tissue gasket 2 of this jaw structure is as follows: just align the tissue gasket 2 with the mounting groove 11 and press the tissue gasket 2 towards the mounting groove 11 until the tissue gasket 2 falls into the mounting groove 11. At this time, the four sides of the tissue gasket 2 are in contact with and limited by the four sides of the mounting groove 11, the bottom surface of the tissue gasket 2 is in contact with and limited by the bottom surface of the mounting groove 11, and the plurality of mounting portions 21 are respectively inserted into the corresponding holes 12 to complete the installation of the tissue gasket 2. The installation of the tissue gasket 2 is very firm and the installation operation is convenient, and the tissue gasket 2 can even be replaced during the operation.

[0026] The disassembly process of the tissue gasket 2 of this jaw structure is as follows: just press the pressing area 13 of the jaw body 1, and the tissue gasket 2 is pushed out of the mounting groove 11 by the pressing area 13 to complete the disassembly of the tissue gasket 2. The disassembly operation is very convenient, and the tissue gasket 2 can even be replaced during the operation.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A jaw structure of an ultrasonic surgical knife, characterized in that: The invention comprises a cutter head body, a jaw body (1) and a tissue gasket (2), wherein the jaw body (1) is arranged to be opened and closed relative to the cutter head body, a mounting groove (11) is provided on a side of the jaw body (1) facing the cutter head body, the tissue gasket (2) is arranged in the mounting groove (11), the periphery of the tissue gasket (2) is in contact with the periphery of the mounting groove (11) for limiting position, the bottom surface of the tissue gasket (2) is in contact with the bottom surface of the mounting groove (11) for limiting position, and the assembly A plurality of mounting portions (21) are provided on the woven gasket (2), and the plurality of mounting portions (21) are sequentially arranged around the four sides of the tissue gasket (2); holes (12) matching the mounting portions (21) are provided around the four sides of the mounting groove (11); a pressing area (13) is provided on the outer surface of the jaw body (1) opposite to the mounting groove (11); when the pressing area (13) is pressed, the tissue gasket (2) is pushed out of the mounting groove (11) by the pressing area (13).

2. The jaw structure of the ultrasonic surgical knife according to claim 1, characterized in that: The number of the plurality of mounting portions (21) is four, and the four mounting portions (21) are arranged in sequence around the four sides of the tissue pad (2).

3. The jaw structure of the ultrasonic surgical knife according to claim 1, characterized in that: The side of the tissue gasket (2) facing the blade body is a working surface, the working surface is higher than the jaw body (1), and anti-slip serrations (22) are arranged on the working surface, and the anti-slip serrations (22) are arranged in sequence from back to front.

4. The jaw structure of the ultrasonic surgical knife according to claim 3, characterized in that: The anti-slip saw teeth (22) are arranged to be inclined downward from the back to the front.

5. The jaw structure of an ultrasonic surgical knife according to any one of claims 1 to 4, characterized in that: The material of the jaw body (1) is metal, and the material of the tissue gasket (2) is polytetrafluoroethylene.

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