Assembly with cutting knife for electric endoscope

Abstract

The utility model discloses an assembly with a cutting knife of an electric endoscope, and particularly relates to the field of electric endoscopes, the assembly comprises a nail bin assembly, the two sides of the nail bin assembly are symmetrically provided with clamping grooves, the two sides of the nail bin assembly are symmetrically and fixedly connected with installation clamping blocks, and the top of the nail bin assembly is provided with a protective cover plate. Clamping blocks are symmetrically and fixedly connected to the two sides of the protective cover plate, a knife groove is formed in the surface of the nail bin assembly, and a cutting knife is arranged in the middle of the knife groove. According to the utility model, the limiting slide block is matched with the limiting slide groove, so that the cutting knife can be connected with the staple cartridge assembly, the cutting knife can be synchronously disassembled and replaced when the staple cartridge assembly is disassembled and replaced, the use frequency of the cutting knife is reduced, and the blade passivation risk is reduced; and through the connecting tail hook, after the nail bin assembly is installed, the nail bin assembly can be conveniently connected with a matched push broach mechanism in a buckled mode, the movable cutting use of a cutting knife after installation is not affected, and the use effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric endoscopes, and more specifically, the utility model relates to a component with a cutting knife of an electric endoscope. Background Art

[0002] The operation of an electric endoscope stapler is generally a laparoscopic surgery, and the operation process includes steps such as patient preparation, anesthesia, establishment of artificial pneumoperitoneum, insertion of the endoscope, surgical operation, application of the stapler, suture of the incision, and postoperative recovery. The endoscope stapler is one of the important instruments for laparoscopic surgery, replacing traditional manual suture, using titanium staples to sever or anastomose tissues, with simple and rapid operation, greatly shortening the operation time. The electric endoscope stapler mainly includes an end effector, a cutting knife assembly, control buttons, a motor, and a transmission mechanism, and is used for cutting and anastomosing tissues in the human body.

[0003] The existing cutting knife assembly of the endoscope stapler includes a staple cartridge and a cutting knife. The staple cartridge is separated from the cutting knife, and the cutting knife and the pusher knife structure are arranged inside the instrument body. During the surgical use, one instrument body is used, and multiple components are used. When disassembling and replacing the staple cartridge assembly, the cutting knife cannot be disassembled and replaced at the same time. It is easy for the cutting knife inside the instrument body to be used multiple times, resulting in dulling of the blade edge, affecting the cutting sharpness and the cutting effect. Therefore, a component with a cutting knife of an electric endoscope is proposed. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a component with a cutting knife of an electric endoscope to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A component with a cutting knife of an electric endoscope, including a staple cartridge assembly, wherein clamping grooves are symmetrically opened on both sides of the staple cartridge assembly, installation blocks are symmetrically and fixedly connected to both sides of the staple cartridge assembly, a protective cover plate is arranged on the top of the staple cartridge assembly, clamping blocks are symmetrically and fixedly connected to both sides of the protective cover plate, a knife groove is opened on the surface of the staple cartridge assembly, and a cutting knife is arranged in the middle of the knife groove;

[0006] Positioning sliding grooves are opened on both sides of the inner cavity of the knife groove, limiting sliding grooves are opened on both sides of the inner cavity of the positioning sliding grooves, a support plate is fixedly connected to the bottom of the cutting knife, positioning sliding blocks are symmetrically and fixedly connected to both sides of the support plate, a connecting tail hook is fixedly connected to one side of the positioning sliding block, and limiting sliding blocks are symmetrically and fixedly connected to the opposite sides of the two positioning sliding blocks.

[0007] Preferably, the clamping blocks and the clamping grooves correspond to each other, the clamping blocks and the clamping grooves are adapted to each other, and openings are arranged at the top ends of both ends of the clamping grooves.

[0008] Preferably, the cross-sectional shape of the tool groove is set as a "T" shape. Both the cutting tool and the support plate are arranged in the middle of the tool groove. The side wall of the cutting tool away from the connecting tail hook is set as a blade structure.

[0009] Preferably, the positioning slide plate is adapted to the positioning chute, and the positioning slide plate is arranged inside the positioning chute.

[0010] Preferably, the limiting slider corresponds to the limiting chute, and the limiting slider is arranged in the middle of the limiting chute.

[0011] Preferably, one end of the connecting tail hook away from the positioning slide plate is snap-connected to the knife pushing structure of the electric endoscope. The installation clamping block corresponds to the clamping hole inside the installation shell of the electric endoscope, and the installation clamping block is arranged in the middle of the clamping hole inside the installation shell.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. First, by setting the cooperation of the limiting slider and the limiting chute, the cutting tool can be connected to the staple cartridge assembly. When the staple cartridge assembly is disassembled and replaced, the cutting tool can be synchronously disassembled and replaced, reducing the usage times of the cutting tool and the risk of blade passivation. And through the connecting tail hook, it is convenient to be snap-connected to the adapted knife pushing mechanism after the staple cartridge assembly is installed, without affecting the moving cutting use of the cutting tool after installation, improving the use effect.

[0014] 2. The present utility model also facilitates the positioning of the installation of the staple cartridge assembly by setting the installation clamping block, and protects the surface of the staple cartridge assembly by setting the protective cover plate. It can protect the surface of the staple cartridge assembly when not in use. And through the cooperation of the card slot and the clamping block, it is convenient to install, fix and disassemble the protective cover plate. Moreover, through the cooperation of the tool groove, the positioning slide plate and the positioning chute, the stability of the movement of the cutting tool can be improved, and the cutting effect can be enhanced.

[0015] In summary, through the mutual influence of the above multiple functions, it is convenient to synchronously disassemble and replace the cutting tool when disassembling and replacing the staple cartridge assembly, reducing the usage times of the cutting tool and the risk of blade passivation, and not affecting the normal use of the cutting tool after installation, improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the connection structure of the staple cartridge assembly and the protective cover plate of the present utility model.

[0018] Figure 3 It is a schematic diagram of the side view cross-sectional structure of the present utility model.

[0019] Figure 4 For the present utility model Figure 1 is a schematic diagram of a partially enlarged structure at position A in it.

[0020] Figure 5 is a schematic diagram of the connection structure between the cutting knife and the connecting tail hook of the present utility model.

[0021] The reference numerals are: 1, staple cartridge assembly; 2, card slot; 3, protective cover plate; 4, card block; 5, mounting card block; 6, knife slot; 7, cutting knife; 8, connecting tail hook; 9, positioning sliding groove; 10, limiting sliding groove; 11, positioning sliding plate; 12, limiting sliding block; 13, support plate. Specific embodiments

[0022] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] As shown in the attached Figures 1-5 figure, a component with a cutting knife of an electric endoscope includes a staple cartridge assembly 1. Card slots 2 are symmetrically opened on both sides of the staple cartridge assembly 1. Mounting card blocks 5 are symmetrically and fixedly connected to both sides of the staple cartridge assembly 1. The staple cartridge assembly 1 is conveniently installed in the mounting shell of the electric endoscope through the mounting card blocks 5. A protective cover plate 3 is arranged on the top of the staple cartridge assembly 1. Card blocks 4 are symmetrically and fixedly connected to both sides of the protective cover plate 3. Through the cooperation of the card blocks 4 and the card slots 2, the protective cover plate 3 is conveniently installed and fixed, and the cutting surface of the staple cartridge assembly 1 is protected by the protective cover plate 3, which is convenient for installation, opening and use. A knife slot 6 is opened on the surface of the staple cartridge assembly 1. A cutting knife 7 is arranged in the middle of the knife slot 6. The movement of the cutting knife 7 is limited by the knife slot 6, and the stability of the movement of the cutting knife 7 is improved;

[0024] On both sides of the inner cavity of the knife groove 6, positioning sliding grooves 9 are provided. On both sides of the inner cavity of the positioning sliding grooves 9, limiting sliding grooves 10 are provided. The bottom of the cutting knife 7 is fixedly connected with a support plate 13. On both sides of the support plate 13, positioning sliding plates 11 are symmetrically and fixedly connected. On one side of the positioning sliding plates 11, connecting tail hooks 8 are fixedly connected. On the opposite sides of the two positioning sliding plates 11, limiting sliding blocks 12 are symmetrically and fixedly connected. Through the cooperation of the positioning sliding grooves 9 and the positioning sliding plates 11, the moving stability of the cutting knife 7 is further improved. And through the cooperation of the limiting sliding grooves 10 and the limiting sliding blocks 12, the cutting knife 7 can be fixed, so that the cutting knife 7 is located in the middle of the staple cartridge assembly 1. When the staple cartridge assembly 1 is replaced, the cutting knife 7 can be driven to be replaced, avoiding the cutting knife 7 being dulled due to long-term use and affecting the cutting effect. And through the connecting tail hook 8, it is convenient to connect the cutting knife 7 with the pushing knife structure, so that the movement of the pushing knife mechanism can drive the cutting knife 7 to move, and it does not affect separation and disassembly, improving the use effect. The support plate 13 supports and fixes the cutting knife 7 and the positioning sliding plates 11.

[0025] As shown in the Figure 1 attachment 2 As shown in the attached figure, the clamping block 4 and the clamping groove 2 correspond to each other, the clamping block 4 and the clamping groove 2 are adapted to each other, and openings are provided at the top of both ends of the clamping groove 2. Through the cooperation of the clamping block 4 and the clamping groove 2, it is convenient to install, fix, disassemble and use the protective cover plate 3.

[0026] As shown in the Figure 3 attachment 4 As shown in the attached figure, the cross-sectional shape of the knife groove 6 is set as a "T" shape. The cutting knife 7 and the support plate 13 are both arranged in the middle of the knife groove 6. The side wall of the cutting knife 7 away from the connecting tail hook 8 is set as a blade structure. The knife groove 6 limits the support plate 13 and the cutting knife 7, and through the movement of the cutting knife 7, it is convenient for cutting use.

[0027] As shown in the Figure 3 attachment, the positioning sliding plate 11 is adapted to the positioning sliding groove 9, and the positioning sliding plate 11 is arranged inside the positioning sliding groove 9, which is convenient for limiting the cutting knife 7 and improving the moving stability of the cutting knife 7.

[0028] As shown in the Figure 3 attachment, the limiting sliding block 12 corresponds to the limiting sliding groove 10, and the limiting sliding block 12 is arranged in the middle of the limiting sliding groove 10, which is convenient for limiting the movement of the positioning sliding plate 11 and the cutting knife 7, and connecting the cutting knife 7 with the staple cartridge assembly 1, so that the cutting knife 7 can be driven to be disassembled and replaced when the staple cartridge assembly 1 is replaced and disassembled, improving the use effect.

[0029] As shown in the Figure 4 attachment 5As shown, one end of the connecting tail hook 8 far from the positioning slide plate 11 is snap-connected to the cutter pushing structure of the electric endoscope. The installation block 5 corresponds to the internal clamping hole of the installation shell of the electric endoscope. The installation block 5 is arranged in the middle of the internal clamping hole of the installation shell. The snap connection with the cutter pushing structure of the electric endoscope through the connecting tail hook 8 facilitates the movement of the cutter pushing structure of the electric endoscope to drive the cutting knife 7 for convenient cutting use, and the installation of the staple cartridge assembly 1 is conveniently fixed and limited through the installation block 5, improving the use effect.

[0030] The working principle of the present utility model: During use, the staple cartridge assembly 1 is conveniently installed and fixed through the installation block 5, and the protective cover plate 3 is installed and fixed through the cooperation of the block 4 and the slot 2, so as to protect the surface of the staple cartridge assembly 1 when the staple cartridge assembly 1 is not in use, facilitating storage and use;

[0031] After the staple cartridge assembly 1 is installed and fixed, the push plate structure of the electric endoscope is moved to push the support plate 13 until the connecting tail hook 8 is snap-connected to the push plate structure, enabling the push plate structure to move the support plate 13 and the cutting knife 7 to move, facilitating cutting use, and the movement of the cutting knife 7 is limited through the cooperation of the limit slider 12 and the limit chute 10, improving the use effect;

[0032] Moreover, during the process of disassembling and installing the staple cartridge assembly 1, the cutting knife 7 can be disassembled and replaced to avoid the cutting knife 7 being dulled due to long-term use, affecting the cutting use effect.

[0033] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electric laparoscope assembly with a cutting knife, comprising a staple cartridge assembly (1), characterized in that: The nail magazine assembly (1) is symmetrically provided with card slots (2) on both sides, and mounting card blocks (5) are symmetrically fixedly connected to the two sides of the nail magazine assembly (1). A protective cover plate (3) is provided on the top of the nail magazine assembly (1), and card blocks (4) are symmetrically fixedly connected to the two sides of the protective cover plate (3). A knife groove (6) is provided on the surface of the nail magazine assembly (1), and a cutting knife (7) is provided in the middle of the knife groove (6). Positioning grooves (9) are provided on both sides of the inner cavity of the knife groove (6), and limiting grooves (10) are provided on both sides of the inner cavity of the positioning groove (9). The bottom of the cutting knife (7) is fixedly connected to a support plate (13), and positioning slide plates (11) are symmetrically fixedly connected to both sides of the support plate (13), and a connecting tail hook (8) is fixedly connected to one side of the positioning slide plate (11), and limiting slide plates (12) are symmetrically fixedly connected to the opposite sides of the two positioning slide plates (11).

2. The component with a cutting knife for an electric laparoscope according to claim 1, characterized in that: The card block (4) corresponds to the card slot (2), the card block (4) and the card slot (2) are adapted to each other, and openings are provided at the tops of both ends of the card slot (2).

3. The component with a cutting knife for an electric laparoscope according to claim 1, characterized in that: The cross-sectional shape of the knife groove (6) is set to be a "T" shape, the cutting knife (7) and the support plate (13) are both arranged in the middle of the knife groove (6), and a side wall of the cutting knife (7) away from the connecting tail hook (8) is set to be a blade structure.

4. The component with a cutting knife for an electric laparoscope according to claim 1, characterized in that: The positioning slide plate (11) is adapted to the positioning slide groove (9), and the positioning slide plate (11) is arranged inside the positioning slide groove (9).

5. The component with a cutting knife for an electric laparoscope according to claim 1, characterized in that: The limiting sliding block (12) corresponds to the limiting sliding groove (10), and the limiting sliding block (12) is arranged in the middle of the limiting sliding groove (10).

6. The component with a cutting knife for an electric laparoscope according to claim 1, characterized in that: One end of the connecting tail hook (8) away from the positioning slide plate (11) is snap-connected to the push knife structure of the electric laparoscope, the mounting block (5) corresponds to the internal clamping hole of the mounting shell of the electric laparoscope, and the mounting block (5) is arranged in the middle of the internal clamping hole of the mounting shell.

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