CN214907513U - Nail box and anastomat - Google Patents

Abstract

The utility model provides a nail casket and anastomat for the insurance structure of cutting knife influences the problem of the structural strength of nail casket base among the solution prior art. A staple cartridge, comprising: the nail bin assembly, the nail box base, the nail abutting seat assembly and the cutter assembly are arranged on the nail box; the nail bin assembly is detachably arranged on the nail box base; the nail pushing seat assembly comprises a nail pushing seat body and a nail pushing plate, the nail pushing plate is fixed on the side wall of the nail pushing seat body, the nail pushing plate and the bottom wall of the nail pushing seat body are arranged at intervals to form an accommodating space, and a safety through hole is formed in the nail pushing plate; still include insurance subassembly, insurance subassembly includes block tongue and elastic component, the block tongue rotates the installation through the round pin axle, the elastic component is fixed on the nail casket base, the elastic component is still fixed on the block tongue, the elastic component has and lets the screens portion of block tongue passes insurance through-hole and enters into the elasticity trend in the accommodation space. The safety function of the cutter can be realized.

Description

Nail box and anastomat

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a nail casket and anastomat.

Background

In recent years, the endoscopic anastomat is widely applied to various surgical operations and has the comprehensive advantages of simple and convenient operation, small operation wound, quick postoperative recovery and the like.

The konhua endoscopic stapler consists of a stapler body and a nail box, wherein in one operation, generally, one gun body is matched with a plurality of nail boxes to perform suture and cutting operation, while the konhua nail box has a complex structure and more parts, so that the disposable use of the nail box causes great resource waste and heavy medical expense burden for a plurality of patients. In order to reduce the medical burden of patients, a plurality of manufacturers at home and abroad have provided nail boxes with replaceable nail bins, namely, most of the bodies of the nail boxes can be used for a plurality of times in the same operation.

The largest difference in the design of the replaceable cartridge magazine compared to previous generation magazines is in the design of the cutter guard. Because the nail box body part needs to finish several times of percussion operations, the cutting knife safety device can automatically judge the empty nail bin. In the patent of the medical application for filling nails (patent number: CN110916739A), an empty nail bin is automatically distinguished and the safety function of a cutting knife is realized by a spring plate with a wedge-shaped protrusion pair and a nail pushing slide block. However, the safety structure designed in the patent destroys the structural strength of the base of the staple box and affects the cutting and suturing capability of the staple box on thick tissues.

Disclosure of Invention

In view of the above prior art's shortcoming, the utility model aims to provide a nail casket and anastomat for solve among the prior art problem that the insurance structure of cutting knife influences the structural strength of nail casket base.

To achieve the above and other related objects, the present invention provides a magazine, comprising: the nail bin assembly, the nail box base, the nail abutting seat assembly and the cutter assembly are arranged on the nail box;

the nail bin assembly is detachably arranged on the nail box base;

the nail pushing seat assembly comprises a nail pushing seat body and a nail pushing plate, the nail pushing plate is fixed on the side wall of the nail pushing seat body, the nail pushing plate and the bottom wall of the nail pushing seat body are arranged at intervals to form an accommodating space, and a safety through hole is formed in the nail pushing plate;

the nail box is characterized by further comprising a safety assembly, wherein the safety assembly comprises a clamping tongue and an elastic piece, the clamping tongue is rotatably installed through a pin shaft, the elastic piece is fixed on the nail box base, the elastic piece is further fixed on the clamping tongue, and the elastic piece has an elastic tendency that a clamping part of the clamping tongue penetrates through the safety through hole and enters the accommodating space;

when the nail bin assembly is arranged on the nail box base, the nail bin assembly and the clamping tongue are matched to overcome the elasticity of the elastic piece, and the clamping tongue is rotated to enable the clamping part to be withdrawn from the accommodating space.

Optionally, the clamping tongue comprises a clamping tongue body and a connecting portion, the connecting portion is rotatably mounted through the pin shaft, the connecting portion is fixed to one end of the clamping tongue body, and the clamping portion is fixed to the other end of the clamping tongue body.

Optionally, the connecting portion with screens portion all for the block tongue body is the contained angle setting, the connecting portion with the screens portion is located one side of block tongue body, the elastic component is located the opposite side of block tongue body.

Optionally, the latch further includes a positioning portion, the positioning portion is fixed on the latch body, the elastic member is connected with the positioning portion, and the positioning portion is located on the other side of the latch body.

Optionally, the positioning portion and the clamping tongue form a positioning recess towards the front side, and the positioning recess is used for being matched with the nail cartridge assembly.

Optionally, the nail bin assembly comprises a nail pushing slider, the positioning recess is used for being matched with the nail pushing slider, and the positioning recess is matched with a protruding structure corresponding to the nail pushing slider.

Optionally, the elastic element is a spring plate or a spring.

Optionally, the safety components are arranged in pairs in the left-right direction.

A stapler comprising said staple cartridge;

the universal assembly at the rear end of the nail box comprises a pushing piece, the pushing piece can push the cutting knife assembly to move forwards, a pushing block is arranged at the tail end of the pushing piece, the pushing block is partially and movably embedded into the accommodating space, when the clamping part enters the accommodating space, the clamping part blocks the pushing block to move forwards, and the clamping tongue is rotatably arranged on the universal assembly at the rear end of the nail box through a pin shaft;

the nail box base is rotatably arranged on the nail box rear end general assembly;

the nail abutting seat assembly is fixed on the rear-end general assembly.

Optionally, the push block is of an i-shaped structure.

As mentioned above, the nail box and the anastomat of the utility model have at least the following beneficial effects:

through the cooperation of block tongue and elastic component, set up insurance through-hole simultaneously on propping the nail board, make under the condition that no nail storehouse subassembly carried out the interference, under the condition of empty storehouse promptly, the elastic component can let the screens portion of block tongue pass in insurance through-hole gets into accommodation space, because ejector pad part arranges in accommodation space, when the ejector pad moves forward in accommodation space, because screens portion also is in accommodation space, so the ejector pad is blockked, make the ejector pad can't push cutting knife subassembly forward, when the nail storehouse subassembly is installed on nail casket base, the elasticity of elastic component is overcome to the nail storehouse subassembly, make the block tongue withdraw from accommodation space, thereby realize stepping down, when the ejector pad is pushed forward, the ejector pad can be unrestricted in accommodation space, thereby realize the drive to cutting knife subassembly and ejector pad.

Drawings

Fig. 1 is a perspective view of the stapler of the present invention (not shown with the cutter assembly).

Fig. 2 is a schematic view of the nail cartridge assembly of the present invention.

Fig. 3 is a schematic view of the nail pushing slider according to the present invention.

Figure 4 shows a schematic view of the push-pull member of the present invention.

Fig. 5 is a schematic view of the nail seat assembly of the present invention.

Fig. 6 is a schematic view of the stapler of the present invention in an empty state and with the staple cartridge base open.

Fig. 7 is a partially enlarged view of a in fig. 6.

Fig. 8 is a schematic view of a-a in fig. 6.

Fig. 9 is a schematic view of the stapler of the present invention in an empty state and with the staple cartridge base closed.

Fig. 10 is a partially enlarged view of B in fig. 9.

FIG. 11 is a schematic view of B-B in FIG. 9.

Fig. 12 is a schematic view of the installation of the cartridge assembly of the stapler with the staple cartridge base open according to the present invention.

Fig. 13 is a partially enlarged view of C in fig. 12.

Fig. 14 is a schematic view of C-C in fig. 12.

Fig. 15 is a schematic view of the stapler with the staple cartridge assembly installed and the staple cartridge base opened.

Fig. 16 is a partially enlarged view of C in fig. 15.

FIG. 17 is a schematic view of C-C in FIG. 15.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 17. It should be understood that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that can be achieved. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

Referring to fig. 1 to 17, the present invention provides an embodiment of a nail magazine, including: the nail bin assembly 1, the nail box base 2, the nail abutting seat assembly 3 and the cutter assembly; the nail bin assembly 1 is detachably arranged on the nail box base 2; the nail abutting seat assembly 3 comprises a nail abutting seat body 31 and a nail abutting plate 32, the nail abutting plate 32 is fixed on the side wall of the nail abutting seat body 31, the nail abutting plate 32 and the bottom wall of the nail abutting seat body 31 are arranged at intervals to form an accommodating space 30, and a safety through hole 321 is formed in the nail abutting plate 32; the safety device further comprises a safety assembly, wherein the safety assembly comprises a clamping tongue 41 and an elastic piece 42, and optionally, the elastic piece 42 is a spring sheet or a spring. The latch 41 is rotatably mounted by a pin, the elastic member 42 is fixed on the magazine base 2, the elastic member 42 is further fixed on the latch 41, and the elastic member 42 has an elastic tendency that the latching portion 411 of the latch 41 passes through the safety through hole 321 and enters the accommodating space 30; when the magazine assembly 1 is mounted on the magazine base 2, the magazine assembly 1 and the latch 41 cooperate to overcome the elastic force of the elastic member 42, and the latch 41 is rotated to withdraw the retainer 411 from the accommodating space 30. Through the cooperation of the latch 41 and the elastic element 42, and the provision of the safety through hole 321 on the nail abutting plate 32, under the condition that no interference occurs in the magazine assembly 1, i.e. empty bin, the elastic element 42 can let the position portion 411 of the latch 41 pass through the safety through hole 321 and enter the accommodating space 30, since the push block is partially disposed in the accommodating space 30, when the push block moves forward in the accommodating space 30, since the retainer 411 is also located in the accommodating space 30, the push block is blocked, so that the push block cannot push the cutter assembly forward, when the nail box component 1 is arranged on the nail box base 2, the nail box component 1 overcomes the elasticity of the elastic piece 42, so that the clamping tongue 41 is withdrawn from the containing space 30, thereby realizing abdicating, when the ejector pad is pushed forward, the ejector pad can be unrestricted in the accommodation space 30, thereby realizing the drive to the pair of cutter components and the ejector pin slider.

In this embodiment, referring to fig. 7, 10 and 13, the latch 41 includes a latch body 412 and a connecting portion 413, the connecting portion 413 is rotatably mounted by the pin 4130, the connecting portion 413 is fixed at one end of the latch body 412, and the positioning portion 411 is fixed at the other end of the latch body 412. Due to the arrangement of the connecting portion 413, the positioning portion 411 can enter the safety through hole 321 at a better angle to achieve the positioning effect.

In this embodiment, referring to fig. 7, fig. 10 and fig. 13, the connecting portion 413 and the positioning portion 411 are both disposed at an included angle with respect to the latch body 412, the connecting portion 413 and the positioning portion 411 are disposed on one side of the latch body 412, and the elastic member 42 is disposed on the other side of the latch body 412. Through connecting portion 413 with the setting that screens portion 411 is the contained angle and all is located the rear side for the effect of screens is realized in the effect that screens portion 411 can enter into insurance through-hole 321 with better angle.

In this embodiment, referring to fig. 7, 10 and 13, the latch 41 further includes a positioning portion 414, the positioning portion 414 is fixed on the latch body 412, the elastic element 42 is connected to the positioning portion 414, and the positioning portion 414 is located on the other side of the latch body 412. Through the design of the positioning portion 414, one end of the elastic element 42 is fixedly connected with the positioning portion 414, and the other end of the elastic element 42 is fixedly connected with the magazine base 2, so that when the magazine assembly 1 is installed, the force can be applied to the positioning portion 414, the elastic force of the elastic element 42 is overcome, the latch 41 is turned over, and the latch 41 is withdrawn from the accommodating space 30.

In this embodiment, referring to fig. 7, 10 and 13, the positioning portion 414 and the latch 41 form a positioning recess 4140 facing to the front side, and the positioning recess 4140 is used for cooperating with the cartridge module 1. Optionally, the staple cartridge assembly 1 includes a staple pushing slider 13, the positioning recess 4140 is configured to cooperate with the staple pushing slider 13, and the positioning recess 4140 is matched with a corresponding protruding structure of the staple pushing slider 13. I.e., the locating recesses 4140 are better able to mate with the cartridge assembly 1. Specifically referring to fig. 3, the nail pushing slider 13 is provided with a supporting protrusion 131, the supporting protrusion 131 is used for cooperating with the positioning recess 4140, the nail pushing slider 13 is provided with a rib plate 132, and the rib plate 132 cooperates with the knife groove mentioned in the following embodiments. In fig. 2, the cartridge assembly 1 further comprises a cartridge 11 and a cartridge cover 12.

In this embodiment, referring to fig. 8, 11 and 14, the fuse elements are arranged in pairs in the left-right direction. The stress can be uniformly and multipoint stressed, and the safety performance of the device is more reliable.

In this embodiment, referring to fig. 1 to 17, a stapler includes the staple cartridge according to any one of the above embodiments; the universal assembly 5 at the rear end of the nail box is further included, the universal assembly 5 at the rear end of the nail box comprises a pushing piece 51, the pushing piece 51 can push the cutting knife assembly to move forwards, a pushing block 510 is arranged at the tail end of the pushing piece 51, the pushing block 510 is partially and movably embedded into the accommodating space 30, when the clamping part 411 enters the accommodating space 30, the clamping part 411 blocks the pushing block 510 to move forwards, and the clamping tongue 41 is rotatably mounted on the universal assembly 5 at the rear end of the nail box through a pin shaft 4130; the nail box base 2 is rotatably arranged on the nail box rear end general assembly 5; the nail abutting seat assembly 3 is fixed on the rear-end general assembly. How the cutting knife component is matched with the nail abutting seat component 3, the nail box base 2 and the nail box is not the key point of the application, and the skilled person can carry out adaptive configuration according to the prior art, and for the purpose of illustration, the following explanation is made, wherein the cutting knife component comprises a cutting knife, a knife groove 6 is arranged between two nail abutting plates 32 of the nail abutting seat component 3, the knife groove 6 is arranged on the nail box component 1, and the cutting knife moves back and forth along the knife groove 6. The position relation among the push block 510, the cutting knife and the nail pushing slide block 13 can be specifically selected to be that the push block 510 pushes the cutting knife arranged in the knife groove 6 to move forwards, and when the cutting knife is contacted with the nail pushing slide block 13, the cutting knife transmits the pushing force to the pushing slide block arranged on the rib plate 132 in the knife groove 6 to move forwards.

In this embodiment, referring to fig. 4, the pushing block 510 has an i-shaped structure. The i-shaped structure can be better clamped into the accommodating space 30, so that the clamping tongue 41 can realize displacement locking control on the clamping tongue.

In summary, the present invention provides a safety mechanism for preventing the nail from being jammed in the nail magazine assembly 1 by the engagement of the latch 41 and the elastic member 42 and the safety through hole 321 formed in the nail abutting plate 32, i.e. empty bin, the elastic element 42 can let the position portion 411 of the latch 41 pass through the safety through hole 321 and enter the accommodating space 30, since the push block 510 is partially disposed in the accommodating space 30, when the push block 510 moves forward in the accommodating space 30, since the catching portion 411 is also located in the accommodating space 30, the pushing block 510 is blocked, so that the pushing block 510 cannot push the cutter assembly forward, when the nail box component 1 is arranged on the nail box base 2, the nail box component 1 overcomes the elasticity of the elastic piece 42, so that the clamping tongue 41 is withdrawn from the containing space 30, thereby achieving abdication, when the push block 510 is pushed forward, the push block 510 can be unrestrained within the receiving space 30, thereby enabling driving of the cutter assembly and the staple pusher shoe 13.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A magazine, comprising: the nail bin assembly, the nail box base, the nail abutting seat assembly and the cutter assembly are arranged on the nail box;

the nail bin assembly is detachably arranged on the nail box base;

the nail pushing seat assembly comprises a nail pushing seat body and a nail pushing plate, the nail pushing plate is fixed on the side wall of the nail pushing seat body, the nail pushing plate and the bottom wall of the nail pushing seat body are arranged at intervals to form an accommodating space, and a safety through hole is formed in the nail pushing plate;

the nail box is characterized by further comprising a safety assembly, wherein the safety assembly comprises a clamping tongue and an elastic piece, the clamping tongue is rotatably installed through a pin shaft, the elastic piece is fixed on the nail box base, the elastic piece is further fixed on the clamping tongue, and the elastic piece has an elastic tendency that a clamping part of the clamping tongue penetrates through the safety through hole and enters the accommodating space;

when the nail bin assembly is arranged on the nail box base, the nail bin assembly and the clamping tongue are matched to overcome the elasticity of the elastic piece, and the clamping tongue is rotated to enable the clamping part to be withdrawn from the accommodating space.

2. The magazine according to claim 1, wherein: the clamping tongue comprises a clamping tongue body and a connecting portion, the connecting portion is rotatably installed through the pin shaft, the connecting portion is fixed to one end of the clamping tongue body, and the clamping portion is fixed to the other end of the clamping tongue body.

3. The magazine according to claim 2, wherein: the connecting portion with screens portion all right the block tongue body is the contained angle setting, connecting portion with the screens portion is located one side of block tongue body, the elastic component is located the opposite side of block tongue body.

4. The magazine according to claim 2, wherein: the clamping tongue further comprises a positioning part, the positioning part is fixed on the clamping tongue body, the elastic piece is connected with the positioning part, and the positioning part is located on the other side of the clamping tongue body.

5. The magazine according to claim 4, wherein: the positioning part and the clamping tongue form a positioning recess towards the front side, and the positioning recess is used for being matched with the nail bin assembly.

6. The magazine according to claim 5, wherein: the nail bin assembly comprises a nail pushing sliding block, the positioning recess is used for being matched with the nail pushing sliding block, and the positioning recess is matched with a protruding structure corresponding to the nail pushing sliding block.

7. The magazine according to claim 1, wherein: the elastic piece is a spring sheet or a spring.

8. The magazine according to claim 1, wherein: the fuse assemblies are arranged in pairs in the left-right direction.

9. An anastomat, which is characterized in that: comprising a staple cartridge according to any one of claims 1-8;

the universal assembly at the rear end of the nail box comprises a pushing piece, the pushing piece can push the cutting knife assembly to move forwards, a pushing block is arranged at the tail end of the pushing piece, the pushing block is partially and movably embedded into the accommodating space, when the clamping part enters the accommodating space, the clamping part blocks the pushing block to move forwards, and the clamping tongue is rotatably arranged on the universal assembly at the rear end of the nail box through a pin shaft;

the nail box base is rotatably arranged on the nail box rear end general assembly;

the nail abutting seat assembly is fixed on the rear-end general assembly.

10. The stapler according to claim 9, wherein: the push block is of an I-shaped structure.

Images