CN211433103U

CN211433103U - Linear cutting anastomat

Info

Publication number: CN211433103U
Application number: CN201922369928.8U
Authority: CN
Inventors: 龚烨; 唐波; 印建新
Original assignee: Jiangsu Kangsai Medical Equipment Technology Co ltd
Current assignee: Jiangsu Kangsai Medical Equipment Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-08
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a linear cutting anastomat, which comprises a handle, a nail bin component, a nail anvil component, a safety locking component, a release button, a hinge component and a cutting component; the safety locking assembly is arranged at the joint of the driving handle and the nail bin assembly; the release button is arranged at the rear end of the driving handle, and the hinge assembly is arranged at the rear end of the fixed handle; the cutting assembly is arranged in the nail bin assembly and can reciprocate along the nail bin assembly; the safety locking assembly comprises a limiting block, a rotary pressing block and an elastic body, and the elastic body is arranged in a limiting groove of the fixed handle; the limiting block is fixed on the elastic body and can move up and down in the limiting groove; the rotary pressing block is hinged on the fixed handle. After the stapler is triggered for the first time and the cutting knife returns, the stapler can automatically bounce to limit the position of the cutting knife, is convenient to operate, and reduces the labor intensity and the mental pressure of doctors. Simple structure, convenient maintenance and low production and use cost.

Description

Linear cutting anastomat

Technical Field

The utility model relates to the field of medical equipment, specifically a linear cutting anastomat.

Background

The linear cutting anastomat is a medical device with a shell, which is disposable, does not need a power supply and only relies on mechanical force to separate human tissues. The tail part of the instrument is provided with a pushing mechanism with a pushing button for realizing the reciprocating linear motion of cutting and suturing. The straight line cutting anastomat is widely used by digestive tract surgery because the straight line cutting anastomat clinically shows the advantages of simple and convenient operation, safe and reliable suturing, light tissue injury, less sequelae and the like. Due to the use of the device, the operation time is shortened, the operation quality is improved, and doctors and patients feel satisfied, thereby obtaining outstanding economic and social benefits.

The straight cutting anastomat has potential misfiring danger in the process of using the straight cutting anastomat, and certain threat is caused to patients and doctors. In order to solve the problem of the false triggering, the conventional linear cutting stapler performs a lot of work in the aspect of preventing the false triggering, such as a safety mechanism for preventing the secondary triggering of the linear cutting stapler disclosed in chinese patent application CN205094529U, a linear cutting stapler disclosed in chinese patent application CN201310158152, a linear cutting stapler disclosed in chinese patent application CN201820243123, and the like, but the above-mentioned disclosed scheme has a complicated structure and high production and practical costs.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art not enough, the straight line cutting anastomat that provides, after the cutting knife has been fired for the first time and has been returned, can bounce voluntarily and inject the cutting knife position, convenient operation alleviates doctor's intensity of labour and mental stress.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a linear cutting anastomat comprises a handle, a nail bin assembly, a nail anvil assembly, a safety locking assembly, a release button, a hinge assembly and a cutting assembly; the handle comprises a driving handle and a fixed handle, the driving handle is arranged at the rear part of the nail bin assembly, the fixed handle is arranged at the rear part of the nail anvil assembly, and the safety locking assembly is arranged at the connecting part of the driving handle and the nail bin assembly; the release button is arranged at the rear end of the driving handle, and the hinge assembly is arranged at the rear end of the fixed handle; the cutting assembly is arranged in the nail bin assembly and can reciprocate along the nail bin assembly; the safety locking assembly comprises a limiting block, a rotary pressing block and an elastic body, and the elastic body is arranged in a limiting groove of the fixed handle; the limiting block is fixed on the elastic body and can move up and down in the limiting groove; the rotary pressing block is hinged on the fixed handle.

As a further improvement, the stopper is a cuboid, and the upper end of the stopper is provided with one section of inclined plane and one section of plane, and the two sides of the plane are provided with chamfers B.

As a further improvement of the utility model, the rotary press block comprises a rotary handle and a press block arranged at the end part of the rotary handle, and the rear end of the rotary handle is provided with a hinge hole; the front side of the pressing block is an arc surface A, and a chamfer angle A is arranged on the lower side of the arc surface A.

As the utility model discloses further modified, the elastomer includes riser, flat board and leaf spring, the leaf spring is fixed between riser and flat board, the riser is fixed on the cell wall of spacing groove, the lower terminal surface of flat board and stopper is connected.

As a further improvement of the present invention, the elastic body may also be a plurality of cylindrical springs.

As a further improvement of the utility model, the driving handle is hinged at the middle part of the nail bin component.

As a further improvement of the utility model, the nail bin assembly comprises a nail bin body and a guide slot body, and the nail bin body is connected to the guide slot body; the nail cabin body is provided with a cutter groove, and the guide groove body is provided with a cutting guide groove.

As a further improvement of the present invention, the cutting assembly includes a sliding cutter, a connecting rod and a cutting pushing button, the cutting pushing button is mounted on the guide groove body, the sliding cutter is mounted in the cutter groove, and the connecting rod is mounted between the sliding cutter and the cutting pushing button; the front end of the connecting rod is a cutter holder, and one side of the cutter holder is provided with an arc surface B.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

after the cutting knife is triggered for the first time and retreated, the cutting knife can be automatically bounced to limit the position of the cutting knife, the operation is convenient, and the labor intensity and the mental pressure of doctors are reduced. Simple structure, convenient maintenance and low production and use cost.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the nail cartridge assembly of the present invention;

fig. 3 is a schematic structural diagram of a safety locking assembly of the present invention;

fig. 4 is a schematic structural diagram of a safety locking assembly of the present invention;

fig. 5 is a schematic structural view three of the safety locking assembly of the present invention;

fig. 6 is a fourth schematic structural view of the safety locking assembly of the present invention;

FIG. 7 is a schematic structural view of the rotary press block of the present invention;

FIG. 8 is a schematic view of the connection structure of the limiting block and the elastic body of the present invention;

fig. 9 is a schematic view of the connection structure of the cutting knife and the knife holder of the present invention.

In the figure: 1. a drive handle; 2. a release button; 3. a hinge assembly; 4. cutting the push button; 5. a connecting rod; 6. a security locking assembly; 6-1, rotating and pressing the block; 6-1-1, a rotating handle; 6-1-2, briquetting; 6-1-3, cambered surface A; 6-1-4, chamfering A; 6-2, a limiting block; 6-2-1, inclined plane; 6-2-2, plane; 6-2-3, chamfering B; 6-3, an elastomer; 6-3-1, standing plates; 6-3-2, plate spring; 6-3-3, flat plate; 7. a nail anvil component; 8. a staple cartridge assembly; 9. a nail groove; 10. cutting the guide groove; 11. a cutter slot; 12. fixing a handle; 12-1, a limiting groove; 13. sliding the cutter; 14. a tool apron; 14-1, cambered surface B; A. a nail cabin body; B. a guide groove body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

1-9, a linear cutting stapler including a handle, a cartridge assembly 8, an anvil assembly 7, a safety locking assembly 6, a release button 2, a hinge assembly 3 and a cutting assembly; the nail bin component 8 and the nail anvil component 7 are matched to sew or inosculate the surgical cutting part firstly, and then the cutting push button 4 of the cutting component is operated manually to complete the cutting work.

The safety locking assembly 6 comprises a limiting block 6-2, a rotary pressing block 6-1 and an elastic body 6-3, wherein the elastic body 6-3 is arranged in a limiting groove 12-1 of the fixed handle 12; the limiting block 6-2 is fixed on the elastic body 6-3 and can move up and down in the limiting groove 12-1; the rotary pressing block 6-1 is hinged on the fixed handle.

Before the anastomat is triggered, the pressing block 6-1-4 of the rotating pressing block 6-1 is tightly pressed on the plane 6-2-2 of the limiting block 6-2, and the plane 6-2-2 of the limiting block 6-2 is ensured to be flush with the end face of the fixed handle 12. The elastic body 6-3 is compressed to store a certain elastic force.

When the anastomat is fired, the cutting push button 4 pushes the connecting rod 5, the connecting rod 5 pushes the cutter holder 14, and the cutter holder 14 drives the sliding cutter 13 to advance. At the moment, the tool apron 14 is contacted with the pressing block 6-1-4 of the rotating pressing block 6-1 and pushes the rotating pressing block 6-1 to rotate around the hinged point of the rotating pressing block, so that the pressing block 6-1-4 of the rotating pressing block 6-1 is separated from the plane 6-2-2 of the limiting block 6-2; due to the connection of the structure and the movement of the cutting assembly, the tool apron 14 firstly replaces the pressing block 6-1-4 to press the limiting block 6-2, and then the connecting rod 5 replaces the pressing block 6-1-4 to press the limiting block 6-2; the state of the limiting block 6-2 is unchanged in the secondary process. To achieve this, the lower end surface of the connecting rod 5 and the lower end surface of the tool holder 14 are flat surfaces that coincide in a plane.

After the anastomat is fired, the cutting assembly is withdrawn, when the cutter holder 14 is separated from the plane 6-2-2 of the limiting block 6-2, the limiting block 6-2 rises upwards along the limiting groove 12-1 and is blocked in front of the cutter holder 14 under the elastic action of the elastic body 6-3, and therefore the anastomat is prevented from being fired by mistake. In order to achieve the purpose, chamfers B6-2-3 are arranged on two sides of the plane 6-2-2, so that the tool apron 14 and the pressing block 6-1-4 can smoothly leave or press the plane 6-2-2.

In order to prevent the cutting assembly from interfering with the pressing block 6-1-4 when the cutting assembly is retracted, one side of the cutter holder 14 is provided with an arc surface B14-1, and the arc surface B14-1 is matched with the arc surface A6-1-3.

When the anastomat needs to be reloaded with the anastomosis nail, the pressing block 6-1-4 of the rotary pressing block 6-1 only needs to be reset manually, namely the limiting block 6-2 is pressed into the limiting groove 12-1 manually, and the pressing block 6-1-4 is tightly pressed on the plane 6-2-2.

The limiting groove 12-1 is a rectangular groove, so that the limiting block 6-2 can be prevented from inclining in the moving process.

The limiting block 6-2 is cuboid, a section of inclined plane 6-2-1 and a section of plane 6-2-2 are arranged at the upper end of the limiting block, and chamfers B6-2-3 are arranged on two sides of the plane 6-2-2. The inclined surface 6-2-1 can reduce the contact area of the connecting rod 5 and the limiting block 6-2, and further reduce friction force.

The rotary pressing block 6-1 comprises a rotary handle 6-1-1 and a pressing block 6-1-2 arranged at the end part of the rotary handle 6-1-1, and a hinge hole is formed in the rear end of the rotary handle 6-1-1; the front side of the pressing block 6-1-2 is an arc surface A6-1-3, and the lower side of the arc surface A6-1-3 is provided with a chamfer A6-1-4.

The elastic body 6-3 comprises a vertical plate 6-3-1, a flat plate 6-3-3 and a plate spring 6-3-2, the plate spring 6-3-2 is fixed between the vertical plate 6-3-1 and the flat plate 6-3-3, the vertical plate 6-3-1 is fixed on the groove wall of the limiting groove 12-1, and the flat plate 6-3-3 is connected with the lower end face of the limiting block 6-2. When the vertical plate 6-3-1 and the rotary pressing block 6-1 are installed, the vertical plate 6-3-1 and the rotary pressing block 6-1 are respectively positioned at two sides of the limiting block 6-2, so that the force arm is increased, and the operation torque is reduced.

Further, the elastic body 6-3 may be a plurality of cylindrical springs.

The cutting assembly comprises a sliding cutter 13, a connecting rod 5 and a cutting push button 4, the cutting push button 4 is arranged on the guide groove body B, the sliding cutter 13 is arranged in the cutter groove 11, and the connecting rod 5 is arranged between the sliding cutter 13 and the cutting push button 4; the front end of the connecting rod 5 is a cutter seat 14, and one side of the cutter seat 14 is provided with an arc surface B14-1.

The handle comprises a driving handle 1 and a fixed handle 12, the driving handle 1 being a force generating part of the anastomosis, which can be rotated about the cartridge assembly 8.

The driving handle 1 is arranged at the rear part of the nail bin assembly 8, the fixing handle 12 is arranged at the rear part of the nail anvil assembly 7, and the safety locking assembly 6 is arranged at the connecting part of the driving handle 1 and the nail bin assembly 8; the release button 2 is installed at the rear end of the driving handle 1, and the hinge assembly 3 is installed at the rear end of the fixed handle 12; the cutting assembly is mounted within cartridge assembly 8 and is reciprocally movable along cartridge assembly 8.

The driving handle 1 is hinged at the middle part of the nail bin assembly 8.

The nail bin assembly 8 comprises a nail bin body A and a guide groove body B, and the nail bin body A is connected to the guide groove body B; the nail cabin body A is provided with a cutter groove 11, and the guide groove body B is provided with a cutting guide groove 10.

The cutting assembly comprises a sliding cutter, a connecting rod 5 and a cutting pushing button 4, the cutting pushing button 4 is installed on the guide groove body B, the sliding cutter is installed in the cutter groove 11, and the connecting rod 5 is installed between the sliding cutter and the cutting pushing button 4.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. A linear cutting anastomat comprises a handle, a nail bin assembly, a nail anvil assembly, a safety locking assembly, a release button, a hinge assembly and a cutting assembly; the handle comprises a driving handle and a fixed handle, the driving handle is arranged at the rear part of the nail bin assembly, the fixed handle is arranged at the rear part of the nail anvil assembly, and the safety locking assembly is arranged at the connecting part of the driving handle and the nail bin assembly; the release button is arranged at the rear end of the driving handle, and the hinge assembly is arranged at the rear end of the fixed handle; the cutting assembly is arranged in the nail bin assembly and can reciprocate along the nail bin assembly, and the cutting assembly is characterized in that: the safety locking assembly comprises a limiting block, a rotary pressing block and an elastic body, and the elastic body is arranged in a limiting groove of the fixed handle; the limiting block is fixed on the elastic body and can move up and down in the limiting groove; the rotary pressing block is hinged on the fixed handle.

2. The linear cutting stapler of claim 1, wherein: the limiting block is cuboid, a section of inclined plane and a section of plane are arranged at the upper end of the limiting block, and chamfers B are arranged on two sides of the plane.

3. The linear cutting stapler of claim 1, wherein: the rotary pressing block comprises a rotary handle and a pressing block arranged at the end part of the rotary handle, and a hinge hole is formed in the rear end of the rotary handle; the front side of the pressing block is an arc surface A, and a chamfer angle A is arranged on the lower side of the arc surface A.

4. The linear cutting stapler of claim 1, wherein: the elastic body comprises a vertical plate, a flat plate and a plate spring, the plate spring is fixed between the vertical plate and the flat plate, the vertical plate is fixed on the groove wall of the limiting groove, and the flat plate is connected with the lower end face of the limiting block.

5. The linear cutting stapler of claim 1, wherein: the elastic body can also be a plurality of cylindrical springs.

6. The linear cutting stapler of claim 1, wherein: the cutting assembly comprises a sliding cutter, a connecting rod and a cutting pushing button, the cutting pushing button is arranged on the guide groove body, the sliding cutter is arranged in the cutter groove, and the connecting rod is arranged between the sliding cutter and the cutting pushing button; the front end of the connecting rod is a cutter holder, and one side of the cutter holder is provided with an arc surface B.