Electric endoscope linear type cutting anastomat

Abstract

The utility model discloses an electric endoscope linear type cutting anastomat which comprises a battery assembly, a nail bin assembly, a replaceable cutter bar assembly and a control handle assembly, and the left end of the replaceable cutter bar assembly is connected with the nail bin assembly; the right end of the replaceable cutter bar assembly is connected with the control handle assembly; the battery assembly is connected with the tail end of the control handle assembly. By means of the structure, the interchangeable use function of the electric endoscope anastomat assembly is achieved, a doctor can replace the needed assembly at any time according to clinical needs in the operation process, waste caused by replacement of the whole instrument is avoided, the operation cost of a patient is reduced, the control handle assembly can be repeatedly used, and the use cost is reduced; the required sharpness of the anastomat cutting knife during tissue cutting in the operation process is guaranteed, the situation that the cutting knife is abraded to cause tearing injury and affect the operation effect is prevented, and the operation risk of a patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an electric laparoscope linear cutting stapler. Background Art

[0002] Laparoscopic staplers are playing an increasingly critical role in current clinical procedures. In surgical procedures, they are commonly used to reconstruct the digestive tract and close stumps or incisions during organ resections. Laparoscopic staplers operate by clamping the stapler assembly onto the target tissue, performing sutures and simultaneously resecting the target tissue.

[0003] Patent document CN213552062U discloses a manual rotation and electric bending switching device, which solves the technical problems in the prior art that rotation and bending may occur simultaneously or that electric bending / manual rotation may be accidentally touched during manual rotation / electric bending.

[0004] During surgical operations, surgeons using electric laparoscopic linear cutting staplers often need to replace the stapler multiple times for cutting and suturing. The service life of the cutting blade of the stapler body is generally 10-12 cuts, and the instrument is a consumable item. After reaching the maximum number of cuts, the instrument must be replaced. For a single operation, replacing the entire stapler is expensive, and currently there is no structure in the same product that can quickly replace the cutting blade and stapler separately. Utility Model Content

[0005] The purpose of the present utility model is to provide an electric laparoscopic linear cutting stapler to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical measures:

[0007] An electric laparoscopic linear cutting stapler realizes the interchangeable use function of electric laparoscopic stapler components. Doctors can replace the required components at any time according to clinical needs during the operation, avoiding the waste of replacing the entire instrument and reducing the patient's surgical costs. The control handle component can be reused, reducing the cost of use, ensuring the required sharpness of the stapler cutting knife when cutting tissue during the operation, preventing the cutting knife from being worn and causing lacerations that affect the surgical effect, and reducing the patient's surgical risks.

[0008] An electric laparoscopic linear cutting stapler comprises a battery assembly, a nail magazine assembly, a replaceable knife rod assembly and a control handle assembly, the left end of the replaceable knife rod assembly is connected to the nail magazine assembly; the right end of the replaceable knife rod assembly is connected to the control handle assembly; the battery assembly is connected to the tail end of the control handle assembly; the control handle assembly comprises a handle outer tube, a handle inner tube, a first built-in push knife connecting rod, a rack, an anti-detachment buckle and a buckle check spring; the replaceable knife rod assembly comprises an outer tube, an inner tube, a push rod connecting piece, a second built-in push knife connecting rod, a knife handle, an inner tube slide groove cover, a knife handle sliding positioning strip and a fixing pin; a control handle drive assembly and a control handle connecting structure are provided on the control handle assembly, and the rear end of the nail magazine assembly is connected to the control handle assembly through the control handle connecting structure; the battery assembly provides electrical energy for the control handle drive assembly; a jaw assembly is provided on the replaceable knife rod assembly, and the nail magazine assembly is mounted on the knife rod assembly through the jaw assembly.

[0009] Preferably, a first layer outer tube connection structure, a second layer inner tube connection structure and a third layer knife rod connection structure are provided between the replaceable knife rod assembly and the control handle connection structure.

[0010] Preferably, the outer tube of the first layer outer tube connection structure is provided with a symmetrically cut outer tube connection groove; the control handle connection structure is provided with a handle outer tube; a cylindrical outer tube connection block is provided on the inner side of the handle outer tube; the outer tube connection groove is connected to the cylindrical outer tube connection block.

[0011] Preferably, symmetrical fixing protrusions are provided on the inner tube of the second layer inner tube connection structure; a handle inner tube is provided inside the control handle connection structure; a protrusion slide groove is provided on the handle inner tube; the fixing protrusion is inserted into the protrusion slide groove; the anti-drop buckle locks the inner tube under the action of the buckle check spring.

[0012] Preferably, the tail end of the first built-in push knife connecting rod of the third-layer knife rod connecting structure is connected to the rack in the control handle drive assembly, the head end of the first built-in push knife connecting rod is connected to the blind hole at one end of the push rod connecting piece, and symmetrical raised blocks are provided in the blind hole, and the raised blocks clamp the first built-in push knife connecting rod, and the blind hole at the other end of the push rod connecting piece is fixedly connected to one end of the second built-in push knife connecting rod through a fixing pin, and the other end of the second built-in push knife connecting rod is connected to the knife handle.

[0013] Preferably, the third-layer knife rod connection structure is installed in the hollow axis of the inner tube of the second-layer inner tube connection structure, and the knife handle is fixed by the knife handle sliding positioning strip, and the push rod connection piece is fixed by the inner tube slide groove cover, and then installed in the first-layer outer tube connection structure.

[0014] The beneficial effects of the present invention are: the interchangeable use function of the electric laparoscopic stapler components is realized, and the doctor can replace the required components at any time according to the clinical needs during the operation, avoiding the waste caused by replacing the entire instrument, reducing the patient's surgical costs, and the control handle component can be reused, reducing the cost of use, ensuring the required sharpness of the stapler cutting knife when cutting tissue during the operation, preventing the cutting knife from being worn and causing tearing that affects the surgical effect, and reducing the patient's surgical risks.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a front view of an electric laparoscopic linear cutting stapler;

[0018] Figure 2 This is a disassembled diagram of the components of an electric laparoscopic linear cutting stapler;

[0019] Figure 3 This is a cross-sectional view of an electric laparoscopic linear cutting stapler;

[0020] Figure 4 This is a disassembled diagram of the replaceable blade rod assembly of an electric laparoscopic linear cutting stapler;

[0021] Figure 5 This is a schematic diagram of the connection structure between a replaceable knife rod assembly and a control handle of an electric laparoscopic linear cutting stapler;

[0022] Figure 6 This is a diagram of the three-layer connection structure of a replaceable knife rod assembly of an electric laparoscopic linear cutting stapler;

[0023] Figure 7 This is a third-layer structural diagram of a replaceable knife rod assembly of an electric laparoscopic linear cutting stapler;

[0024] Figure 8 This is a second-layer structural diagram of a replaceable knife rod assembly of an electric laparoscopic linear cutting stapler;

[0025] Figure 9 This is a first-layer structural diagram of a replaceable knife rod assembly of an electric laparoscopic linear cutting stapler.

[0026] Legend:

[0027] 1. Battery assembly; 2. Nail magazine assembly; 3. Control handle assembly; 3-1. Control handle drive assembly; 3-2. Control handle connection structure; 301. Handle outer tube; 301-1. Cylindrical outer tube connection block; 302. Handle inner tube; 302-1. Bump slide groove; 303. First built-in push knife connecting rod; 304. Rack; 305. Anti-slip buckle; 306. Buckle check spring; 4. Replaceable knife rod assembly; 4-1. Jaw structure; 401. Outer tube; 401-1. Outer tube connection groove; 402. Inner tube; 402-1. Fixed bump; 403. Push rod connection piece; 404. Second built-in push knife connecting rod; 405. Knife handle; 406. Inner tube slide groove cover; 407. Knife handle sliding positioning strip; 408. Fixed pin.

[0028] Above-mentioned each other parts are all purchased from the market. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] Example 1:

[0031] Reference Figures 1 to 4, an electric laparoscopic linear cutting stapler, which includes a battery assembly 1, a staple cartridge assembly 2, a replaceable knife rod assembly 4 and a control handle assembly 3. The left end of the replaceable knife rod assembly 4 is connected to the staple cartridge assembly 2, and the staple cartridge assembly 2 is clamped and assembled in the jaw assembly 4-1 through the staple cartridge alignment groove on the staple cartridge seat in the jaw assembly 4-1; the right end of the replaceable knife rod assembly 4 is connected to the control handle assembly 3, and the cylindrical outer tube connecting block 301-1 on the handle outer tube 301 is inserted into the outer tube connecting groove 401-1 on the outer tube 401 and slidably clamped; the battery assembly 1 is connected to the tail end of the control handle assembly 3; the specific connection method is: the control handle assembly 3 includes a handle outer tube 301, a handle inner tube 302, a first built-in push knife connecting rod 303, a rack 304, an anti-drop buckle 305 and a buckle check spring 306; the replaceable knife rod assembly 4 includes an outer tube 401, an inner tube 402 , a push rod connecting piece 403, a second built-in push knife connecting rod 404, a knife handle 405, an inner tube slide groove cover 406, a knife handle sliding positioning strip 407 and a fixing pin 408; a control handle driving assembly 3-1 and a control handle connecting structure 3-2 are provided on the control handle assembly 3, and the replaceable knife rod assembly 4 is connected to the control handle connecting structure 3-2 on the control handle assembly 3 through a first layer outer tube connecting structure, a second layer inner tube connecting structure and a third layer knife rod connecting structure; the battery assembly 1 provides electrical energy for the control handle driving assembly 3-1, and the handle driving structure 3-1 converts the electrical energy into mechanical kinetic energy through a reduction motor and outputs the kinetic energy to the replaceable knife rod assembly 4 and the nail magazine assembly 2 through the rack 304, so as to achieve the purpose of suturing and cutting tissue; a jaw assembly 4-1 is provided on the replaceable knife rod assembly 4, and the nail magazine assembly 2 is installed on the knife rod assembly 4 through the jaw assembly 4-1.

[0032] Reference Figure 5 、 Figure 6 A first layer outer tube connection structure, a second layer inner tube connection structure and a third layer knife rod connection structure are provided between the replaceable knife rod assembly 4 and the control handle connection structure 3 - 2 .

[0033] Reference Figure 9 The outer tube 401 of the first layer outer tube connection structure is provided with a symmetrically cut outer tube connection groove 401-1; the control handle connection structure 3-2 is provided with a handle outer tube 301; a cylindrical outer tube connection block 301-1 is provided on the inner side of the handle outer tube 301; the cylindrical outer tube connection block 301-1 is inserted into the outer tube connection groove 401-1 and clamped and connected.

[0034] Reference Figure 8Symmetrical fixed protrusions 402-1 are provided on the inner tube 402 of the second-layer inner tube connection structure; a handle inner tube 302 is provided inside the control handle connection structure 3-2; a protrusion slide groove 302-1 is provided on the handle inner tube 302; the fixed protrusion 402-1 is inserted into the protrusion slide groove 302-1; the anti-slip buckle 305 locks the inserted fixed protrusion 402-1 under the action of the buckle check spring 306 to achieve the purpose of connecting the inner tube 402 and the control handle connection structure 3-2.

[0035] Reference Figure 7 The tail end of the first built-in push knife connecting rod 303 of the third-layer knife rod connection structure is connected to the rack 304 in the control handle drive assembly 3-1, and the head of the first built-in push knife connecting rod 303 is connected to the blind hole at one end of the push rod connecting piece 403. A symmetrical raised block is provided in the blind hole, and the raised block clamps the first built-in push knife connecting rod 303. The blind hole at the other end of the push rod connecting piece 403 is fixedly connected to one end of the second built-in push knife connecting rod 404 through a fixing pin 408, and the other end of the second built-in push knife connecting rod 404 is connected to the knife handle 405.

[0036] The third-layer knife rod connection structure is installed in the hollow axis of the inner tube 402 of the second-layer inner tube connection structure, and the knife handle 405 is fixed by the knife handle sliding positioning strip 407, and the push rod connection part 403 is fixed by the inner tube slide groove cover 406, and then installed into the first-layer outer tube connection structure.

[0037] The jaw structure 4-1 of the replaceable tool bar assembly 4 refers to the patent number CN208388673;

[0038] The staple cartridge assembly 2 refers to the patent number CN213030747U;

[0039] Battery assembly 1 refers to patent number CN217772414U;

[0040] The control handle drive assembly 3-1 refers to patent number CN207075910U.

[0041] Working principle: There are symmetrically cut outer tube connecting grooves 401-1 on the outer tube 401 connected to the cylindrical outer tube connecting block 301-1 on the inner side of the handle outer tube 301 on the control handle connecting structure 3-2, and there are symmetrical fixed protrusions 402-1 on the inner tube 402 of the handle, which are aligned with the protrusion sliding grooves 302-1 on the handle inner tube 302 in the control handle connecting structure 3-2 and inserted. The anti-drop buckle 305 locks the inner tube 402 under the action of the buckle non-return spring 306; the tail of the first built-in push knife connecting rod 303 is connected to the rack 304 in the control handle driving assembly 3-1, and the head The first layer of the push rod connecting member 403 is connected to the second built-in push knife connecting rod 404 through a blind hole at one end of the push rod connecting member 403, and is fixed by a fixing pin 408. The other end of the second built-in push knife connecting rod 404 is connected to the knife handle 405; the third layer of the knife rod connecting structure is installed in the hollow axis of the inner tube 402 of the second layer of the inner tube connecting structure, the knife handle sliding positioning strip 407 fixes the knife handle 405, and the inner tube sliding cover groove 406 fixes the push rod connecting member 403, and then is installed in the first layer of the connecting structure.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An electric laparoscopic linear cutting stapler, comprising a battery assembly (1), a staple cartridge assembly (2), a replaceable knife rod assembly (4) and a control handle assembly (3), characterized in that: The left end of the replaceable knife rod assembly (4) is connected to the nail magazine assembly (2); the right end of the replaceable knife rod assembly (4) is connected to the control handle assembly (3); the battery assembly (1) is connected to the rear end of the control handle assembly (3); the control handle assembly (3) includes a handle outer tube (301), a handle inner tube (302), a first built-in push knife connecting rod (303), a rack (304), an anti-drop buckle (305) and a buckle non-return spring (306); the replaceable knife rod assembly (4) includes an outer tube (401), an inner tube (402), a push rod connecting piece (403), a second built-in push knife connecting rod (404), a knife The present invention relates to a tool for manufacturing a nail magazine assembly (2) comprising a handle (405), an inner tube slide groove cover (406), a knife handle sliding positioning strip (407) and a fixing pin (408); the control handle assembly (3) is provided with a control handle driving assembly (3-1) and a control handle connecting structure (3-2); the rear end of the nail magazine assembly (2) is connected to the control handle assembly (3) through the control handle connecting structure (3-2); the battery assembly (1) provides electric energy for the control handle driving assembly (3-1); the replaceable knife bar assembly (4) is provided with a jaw assembly (4-1), and the nail magazine assembly (2) is mounted on the knife bar assembly (4) through the jaw assembly (4-1).

2. The electric laparoscopic linear cutting stapler according to claim 1, characterized in that: A first-layer outer tube connection structure, a second-layer inner tube connection structure, and a third-layer knife rod connection structure are provided between the replaceable knife rod assembly (4) and the control handle connection structure (3-2).

3. The electric laparoscopic linear cutting stapler according to claim 2, characterized in that: The outer tube (401) of the first-layer outer tube connection structure is provided with a symmetrically cut outer tube connection groove (401-1); the control handle connection structure (3-2) is provided with a handle outer tube (301); a cylindrical outer tube connection block (301-1) is provided inside the handle outer tube (301); and the outer tube connection groove (401-1) is connected to the cylindrical outer tube connection block (301-1).

4. The electric laparoscopic linear cutting stapler according to claim 3, characterized in that: Symmetrical fixing protrusions (402-1) are provided on the inner tube (402) of the second-layer inner tube connection structure; a handle inner tube (302) is provided inside the control handle connection structure (3-2); a protrusion slide groove (302-1) is provided on the handle inner tube (302); the fixing protrusion (402-1) is inserted into the protrusion slide groove (302-1); and the anti-drop buckle (305) locks the inner tube (402) under the action of a buckle non-return spring (306).

5. The electric laparoscopic linear cutting stapler according to claim 4, characterized in that: The tail of the first built-in push-knife connecting rod (303) of the third-layer knife rod connection structure is connected to the rack (304) in the control handle drive assembly (3-1), the head of the first built-in push-knife connecting rod (303) is connected to the blind hole at one end of the push rod connecting member (403), and a symmetrical raised block is provided in the blind hole, and the raised block clamps the first built-in push-knife connecting rod (303), the blind hole at the other end of the push rod connecting member (403) is fixedly connected to one end of the second built-in push-knife connecting rod (404) through a fixing pin (408), and the other end of the second built-in push-knife connecting rod (404) is connected to the knife handle (405).

6. The electric laparoscopic linear cutting stapler according to claim 5, characterized in that: The third layer of the knife rod connection structure is installed in the hollow axis of the inner tube (402) of the second layer of the inner tube connection structure, and the knife handle (405) is fixed by the knife handle sliding positioning strip (407), and the push rod connection piece (403) is fixed by the inner tube slide groove cover (406), and then installed in the first layer of the outer tube connection structure.

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