CN112914644B - Endoscope anastomat - Google Patents
Endoscope anastomat Download PDFInfo
- Publication number
- CN112914644B CN112914644B CN202110098956.XA CN202110098956A CN112914644B CN 112914644 B CN112914644 B CN 112914644B CN 202110098956 A CN202110098956 A CN 202110098956A CN 112914644 B CN112914644 B CN 112914644B
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- nail
- groove
- cutting knife
- hook
- push
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
Abstract
The invention provides an endoscope anastomat which is used for solving the problems that potential safety hazards exist after a cutting knife is pushed out and does not reset any more, the safety structure of the cutting knife influences the structural strength of a nail box base, and the structure is complex in the prior art. The method comprises the following steps: the nail magazine comprises a cutter mechanism, a nail magazine component, a nail box base, a nail abutting seat component, a safety component and a nail box rear end general component; the output end of the push-pull piece is used for pushing and pulling the cutting knife, and a second hook is fixed at the output end of the push-pull piece; the nail bin assembly is detachably arranged on the nail box base; when the nail bin assembly is taken out of the nail box base, the safety assembly can block the push-pull piece from moving forwards, and when the nail bin assembly is installed on the nail box base, the nail bin assembly overcomes the resistance of the safety assembly and relieves the limitation on the front-back displacement of the push-pull piece. The safety function is achieved, and the cutting knife can be automatically hidden.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an endoscope anastomat.
Background
The konhui type endoscopic stapler is composed of a stapler body and a staple box, usually, in one operation, one gun body can fire a plurality of staple boxes, and the cost of each staple box is relatively high, which causes heavy medical burden to 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. However, in the existing products, the cutter assembly, the nail box and the nail cabin are separately designed, that is, most of the bodies of the cutter assembly and the nail box can be used for many times in the same operation, but with the increase of the cutting times, the cutting edge of the cutter becomes more and more blunt, and the safety mechanism of the nail box fails, which will cause adverse effects on the operation. In the patent CN 105395229A of the Ruiqi surgical application and the patent of the medical application for filling nail (patent No. CN110916739A), through a spring sheet with a wedge-shaped bulge pair and matching with a nail pushing sliding block, the automatic discrimination of an empty nail bin and the safety function of the cutting knife are realized, but in the patents, the cutting knife is not reset after being pushed out along with the nail pushing sliding block, and the cutting edge of the cutting knife leaks from a nail bin knife groove when the cutting knife breaks down, the structural strength of a nail box base is damaged, the cutting and sewing capacity of the nail box on thick tissues is influenced, and potential safety hazards exist.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide an endoscopic stapler, which is used to solve the problems that in the prior art, after a cutting knife is pushed out, the cutting knife is no longer reset, potential safety hazards exist, the safety structure of the cutting knife affects the structural strength of a nail box base, and the structure is complex.
To achieve the above and other related objects, the present invention provides an endoscopic stapler comprising:
the nail magazine comprises a cutter mechanism, a nail magazine component, a nail box base, a nail abutting seat component, a safety component and a nail box rear end general component;
the cutting knife mechanism includes:
the guide groove comprises a high-level groove, a transition groove and a low-level groove, and the transition groove is used for connecting the high-level groove and the low-level groove;
a support piece is fixed on a cutter handle of the cutter, the support piece is arranged in the guide groove and can reciprocate in the high-position groove, the transition groove and the low-position groove, and the cutter is hung on the guide groove through the support piece;
the cutting knife is also provided with a first hook;
the output end of the push-pull piece is used for pushing and pulling the cutting knife, and a second hook is fixed at the output end of the push-pull piece;
when the push-pull piece pushes the cutting knife from the high groove to the low groove, the first hook approaches to the second hook, and when the support piece reaches the low groove, the first hook and the second hook are buckled; when the push-pull piece pulls the cutting knife from the low groove to the high groove, the first hook is gradually far away from the second hook, and when the supporting piece reaches the high groove, the first hook and the second hook are separated;
the nail bin assembly is detachably arranged on the nail box base; when the nail bin assembly is taken out of the nail box base, the safety assembly can block the push-pull piece from moving forwards, and when the nail bin assembly is installed on the nail box base, the nail bin assembly overcomes the resistance of the safety assembly and relieves the limitation on the front-back displacement of the push-pull piece.
Optionally, the left side and the right side of the cutting knife in the advancing direction are respectively provided with the supporting piece, and the supporting pieces are respectively provided with the guide grooves.
Optionally, the nail bin assembly comprises a nail bin, a nail bin cover and a nail pushing slider;
the nail storehouse is used for holding the sewing nail, be equipped with logical groove along vertically on the nail storehouse, the cutting knife passes logical groove, be fixed with first gusset on the nail storehouse, the nail storehouse is covered and is fixed with the second gusset or be equipped with the inner wall structure that first gusset matches the adaptation, first gusset or inner wall structure with form between the second gusset the guide way.
Optionally, when the nail bin is installed, the nail bin pushes the nail pushing sliding block and the cutting knife into the elevated groove.
Optionally, a safety through hole is arranged on the nail box base;
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 abutting seat assembly, the elastic piece is further fixed on the clamping tongue, and the elastic piece has an elastic trend that the clamping part of the clamping tongue penetrates through the safety through hole.
Optionally, the nail abutting seat assembly comprises a nail abutting seat body and a nail abutting plate, the nail abutting plate is fixed on the side wall of the nail abutting seat body, the nail abutting plate and the bottom wall of the nail abutting seat body are arranged at intervals to form an accommodating space, and the nail abutting plate is provided with a safety through hole;
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 trend 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, an inclined surface structure is arranged on one side, close to the nail bin assembly, of the clamping portion, and the inclined surface structure is used for being matched with the nail bin assembly.
Optionally, the safety components are arranged in pairs in the left-right direction.
As described above, the endoscopic stapler of the present invention has 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. It has the characteristics of simple structure and convenient manufacture. High-order and low level through the guide way set up, when making the cutting knife move along the route of guide way, it can take place the altitude variation, owing to there is the lock relation of first hook and second hook, make when the cutting knife is in the low level, first hook and second hook can be in the lock state, it can follow the push-and-pull action synchronous motion who pushes away the drawing member, when the cutting knife is in the low level simultaneously, its blade can expose in being in the cutting state, push away the drawing member and pull back the cutting knife to the high-order when, the cutting knife is withdrawed and is hidden, and first hook and second hook can break away from again, can change the cutting knife simultaneously.
Drawings
Fig. 1 is a perspective view of the stapler of the present invention.
FIG. 2 is an exploded view of the staple cartridge assembly of the present invention.
FIG. 3 is a schematic view of a staple cartridge of the present invention.
Fig. 4 shows a schematic view of a cutting blade according to the present invention.
FIG. 5 is a schematic view of the staple pusher shoe of the present invention.
FIG. 6 is a schematic view of the magazine cover of the present invention.
Fig. 7 is a schematic view of the push-pull member of the present invention.
FIG. 8 is a cross-sectional view of a first aspect of the stapler of the present invention.
Fig. 9 is a schematic diagram of a second cross section of the first state of the stapler according to the present invention.
Fig. 10 is an enlarged schematic view of a in fig. 9.
Fig. 11 is a schematic cross-sectional view showing a first supporting member of the stapler according to the present invention in a high-position slot.
Fig. 12 is a schematic view of the section two of the supporting member of the stapler of the present invention in the elevated tank.
Fig. 13 is an enlarged view of B in fig. 12.
Fig. 14 is a schematic cross-sectional view showing the first supporting member of the stapler of the present invention in a low position slot.
FIG. 15 is a schematic view of the second cross-section of the stapler with the supporting member in the lower slot.
Fig. 16 is an enlarged schematic view of C in fig. 15.
FIG. 17 is a schematic diagram of a first embodiment of a safety assembly.
FIG. 18 is a diagram of a second embodiment of a safety assembly.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 16. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so as to be understood and read by those skilled in the art, and therefore, the present disclosure is not limited to the conditions of the present disclosure, and any modifications of the structures, the changes of the ratios, or the adjustments of the sizes, should fall within the scope of the present disclosure without affecting the functions and the achievable purposes of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a 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. 12, 13, 15 and 16, an embodiment of a cutting blade mechanism according to the present invention includes: the cutting device comprises a guide groove 1, a cutting knife 2 and a push-pull piece 3, wherein the guide groove 1 comprises a high groove 11, a transition groove 12 and a low groove 13, and the transition groove 12 is used for connecting the high groove 11 and the low groove 13; the cutting knife 2 is provided with a support piece 21, the support piece 21 is arranged in the guide groove 1, the support piece 21 can reciprocate in the high-position groove 11, the transition groove 12 and the low-position groove 13, and the cutting knife 2 is hung on the guide groove 1 through the support piece 21; the cutting knife 2 is also provided with a first hook 22; the output end of the push-pull piece 3 is used for pushing and pulling the cutting knife 2, and a second hook 31 is fixed at the output end of the push-pull piece 3; when the push-pull piece 3 pushes the cutting knife 2 from the high-position groove 11 to the low-position groove 13, the first hook 22 approaches to the second hook 31, and when the support piece 21 reaches the low-position groove 13, the first hook 22 and the second hook 31 are buckled; when the push-pull member 3 pulls the cutting blade 2 from the low groove 13 to the high groove 11, the first hook 22 gradually gets away from the second hook 31, and when the support member 21 reaches the high groove 11, the first hook 22 and the second hook 31 are disengaged. High-order and low level through the guide way 1 set up, make cutting knife 2 during along the route motion of guide way 1, it can take place the altitude variation, owing to there is the lock relation of first hook 22 and second hook 31, make when cutting knife 2 is in the low level, first hook 22 and second hook 31 can be in the lock state, it can be following the push-and-pull action synchronous motion who pushes away and draws piece 3, simultaneously cutting knife 2 is when the low level, its blade can expose in being in the cutting state, push-and-pull piece 3 draws back cutting knife 2 when the high level, cutting knife 2 is withdrawed and is hidden, and first hook 22 and second hook 31 can break away from again, can change cutting knife 2 simultaneously.
In this embodiment, referring to fig. 4, 12, 13, 15 and 16, the supporting member 21 is a block structure. The block structure can prevent the cutting knife 2 from excessively shaking in the cutting process, i.e. the block structure of the support member 21 can have a larger contact area with the guide groove 1. Optionally, the front end and the rear end of the support 21 in the moving direction are provided with a guide structure. Optionally, the high-level groove 11, the transition groove 12 and the low-level groove 13 are in smooth transition. The design of the guide structure enables the support member 21 to be more smoothly switched among the high-level groove 11, the transition groove 12 and the low-level groove 13. The smooth transition among the high-level groove 11, the transition groove 12 and the low-level groove 13 is also for the purpose of enabling the support member 21 to be smoother when the position is switched.
In this embodiment, referring to fig. 4, the supporting members 21 are respectively disposed on the left and right sides of the cutting blade 2 in the forward direction, and the supporting members 21 are respectively configured with the guide grooves 1. The left and right sides is equipped with support piece 21 respectively for 2 atress of cutting knife can be balanced, and the state can be relatively stable when the cutting knife 2 is cutting.
In the present embodiment, referring to fig. 1 to 16, an anastomat includes the cutting knife mechanism according to any one of the above embodiments; the nail magazine comprises a nail magazine component 4, a nail magazine base 5, a nail abutting seat component 6 and a nail magazine rear end universal component 7; the nail bin assembly 4 is detachably mounted in the nail box base 5, the nail box base 5 is rotatably mounted on the nail box rear end general assembly 7, and the nail abutting seat assembly 6 is fixed on the nail box rear end general assembly 7; the nail bin assembly 4 comprises a nail bin 41, a nail bin cover 42, a nail pushing slider 43 and a cutting knife 2; the nail bin 41 is used for containing staples, a through groove 411 is longitudinally arranged on the nail bin 41, the cutting knife 2 penetrates through the through groove 411, a first rib plate 412 is fixed on the nail bin 41, a second rib plate is fixed on the nail bin cover 42 or an inner wall structure 421 matched with the first rib plate 412 is arranged, and the guide groove 1 is formed between the first rib plate 412 or the inner wall structure 421 and the second rib plate; the staple box rear end general assembly 7 comprises the push-pull piece 3. That is, the push-pull member 3 is driven forward and backward, and the push-pull member 3 moves in the forward and backward direction, thereby realizing output of motion.
In this embodiment, referring to fig. 2, 12, 13, 15 and 16, the nail magazine 41 is a detachable structure, and when the nail magazine 41 is installed, the nail pushing slider 43 and the cutting knife 2 are pushed into the high-position groove 11 by the nail magazine 41. Namely, when the nail bin 41 is installed, the nail pushing slide block 43 and the cutting knife 2 are pushed out of the initial positions, and the preposed action of the next use is realized.
In this embodiment, referring to fig. 1, fig. 2 and fig. 6, an installation groove 51 is disposed on the staple cartridge base 5, and an installation protrusion 413 corresponding to the installation groove 51 is disposed on the staple cartridge 41. The cooperation of the mounting groove 51 and the mounting protrusion 413 can realize the quick positioning and mounting of the nail bin 41 and the nail box base 5. In fig. 2, the cartridge cover 42 and the cartridge 41 may be detachably connected by a similar snap-fit structure. The mounting of the cartridge cover 42 and the cartridge 41, as well as the specific mounting of other structures of the stapler, are not of interest to the present application and will not be described in great detail herein.
In this embodiment, referring to fig. 3 and fig. 5, a locking groove 431 is formed on the nail pushing slider 43, a locking protrusion 414 is formed on the nail bin 41, the locking protrusion 414 and the locking groove 431 are matched to lock the nail pushing slider 43 on the nail bin 41, the nail pushing slider 43 is located in front of the cutting blade 2, when the pushing and pulling member 3 pushes the cutting blade 2 forward, the cutting blade 2 pushes the nail pushing slider 43 forward, and in the pushing process, the locking protrusion 414 is disengaged from the locking groove 431. The detent recesses 431 and the detent projections 414 cooperate to position the staple pusher shoe 43 on the staple cartridge 41, and ensure that the staple pusher shoe 43 can move forward normally when pushed. Optionally, the locking groove 431 and the locking protrusion 414 are matched through an arc concave surface and an arc convex surface. The cooperation of arc concave surface and arc convex surface for push away nail slider 43 and promoted more easily, avoided push away nail slider 43 by the card extremely.
Referring to fig. 17, an embodiment of a stapler having a safety assembly, the stapler further comprising: the nail bin assembly 4, the nail box base 5 and the nail abutting seat assembly 6 are detachably mounted on the nail box base 5; the nail abutting seat assembly 6 comprises a nail abutting seat body 61 and a nail abutting plate 62, the nail abutting plate 62 is fixed on the side wall of the nail abutting seat body 61, the nail abutting plate 62 and the bottom wall of the nail abutting seat body 61 are arranged at intervals to form an accommodating space 60, and a safety through hole 621 is formed in the nail abutting plate 62; the safety device further comprises a safety assembly, wherein the safety assembly comprises a clamping tongue 81 and an elastic piece 82, and optionally, the elastic piece 82 is a spring sheet or a spring. The latch 81 is rotatably mounted by a pin, the elastic member 82 is fixed on the magazine base 5, the elastic member 82 is further fixed on the latch 81, and the elastic member 82 has an elastic tendency that the latching portion 811 of the latch 81 passes through the safety through hole 621 and enters the accommodating space 60; when the magazine assembly 4 is mounted on the magazine base 5, the magazine assembly 4 and the latch 81 cooperate to overcome the elastic force of the elastic member 82, and the latch 81 is rotated to withdraw the positioning portion 811 from the receiving space 60. Through the cooperation of the latch 81 and the elastic element 82, and the safety through hole 621 is opened on the nail abutting plate 62, under the condition that no interference is caused by the cartridge assembly 4, i.e. empty, the elastic element 82 can let the positioning portion 811 of the latch 81 pass through the safety through hole 621 and enter the accommodating space 60, since the push block is partially disposed in the accommodating space 60, when the push block moves forward in the accommodating space 60, since the retainer 811 is also in the receiving space 60, the push block is blocked, so that the push block cannot push the cutter assembly forward, when the cartridge assembly 4 is mounted on the magazine base 5, the cartridge assembly 4 overcomes the elastic force of the elastic member 82, so that the latch 81 is withdrawn from the receiving space 60, thereby realizing abdicating, when the ejector pad is pushed forward, the ejector pad can be unrestricted in accommodation space 60 to realize the drive to the pair of cutter subassembly and ejector pin slider.
Referring to fig. 18, in another embodiment of the stapler with a safety component, a safety through hole 621 is formed on the magazine base 5; the elastic element 82 is fixed on the nail abutting seat body 61, and the elastic element 82 is also fixed on the latch 81. It has the characteristics of simple structure and convenient manufacture.
In this embodiment, referring to fig. 17 and 18, the latch 81 includes a latch body 812 and a connecting portion 813, the connecting portion 813 is rotatably mounted by the pin 8130, the connecting portion 813 is fixed at one end of the latch body 812, and the latching portion 811 is fixed at the other end of the latch body 812. Due to the arrangement of the connecting portion 813, the locking portion 811 can enter the safety through hole 621 at a better angle to achieve a locking effect.
In this embodiment, referring to fig. 17 and 18, the connecting portion 813 and the positioning portion 811 are both disposed at an included angle with respect to the tongue body 812, the connecting portion 813 and the positioning portion 811 are located on one side of the tongue body 812, and the elastic member 82 is located on the other side of the tongue body 812. Through the setting that connecting portion 813 and screens portion 811 are the contained angle and all are located the rear side for screens portion 811 can enter into the effect that realizes the screens in insurance through-hole 621 with better angle.
In this embodiment, referring to fig. 17, the latch 81 further includes a positioning portion 814, the positioning portion 814 is fixed on the latch body 812, the elastic member 82 is connected to the positioning portion 814, and the positioning portion 814 is located on the other side of the latch body 812. Through the design of the positioning portion 814, one end of the elastic element 82 is fixedly connected with the positioning portion 814, the other end of the elastic element 82 is fixedly connected with the magazine base 5, and when the magazine assembly 4 is installed, the elastic element can apply force to the positioning portion 814 so as to overcome the elastic force of the elastic element 82, so that the latch 81 is turned over, and the latch 81 is withdrawn from the accommodating space 60.
In this embodiment, referring to fig. 17 and 18, the positioning portion 814 and the latch 81 form a positioning recess 8140 facing to the front side, and the positioning recess 8140 is used for cooperating with the staple cartridge assembly 4. Optionally, the staple cartridge assembly 4 includes a staple pushing slider 43, the positioning recess 8140 is configured to cooperate with the staple pushing slider 43, and the positioning recess 8140 matches with a corresponding protruding structure of the staple pushing slider 43. I.e., positioning recess 8140, is better able to mate with cartridge assembly 4. Specifically referring to fig. 3, the nail pushing slider 43 is provided with a supporting protrusion 431, the supporting protrusion 431 is used for matching with the positioning recess 8140, the nail pushing slider 43 is provided with a rib plate 132, and the rib plate 132 matches with the knife groove mentioned in the following embodiments. In FIG. 2, cartridge assembly 4 further includes a cartridge 11 and a cartridge cover 12.
In this embodiment, referring to fig. 17 and 18, the fuse assemblies 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. 1-18, an anastomat comprises the staple cartridge according to any one of the above embodiments; the universal nail box rear end assembly 7 is further included, the universal nail box rear end assembly 7 includes a pushing member 3, the pushing member 3 can push the cutting knife assembly to move forward, a pushing block 510 is arranged at the tail end of the pushing member 3, a part of the pushing block 510 is movably embedded into the accommodating space 60, when the clamping portion 811 enters the accommodating space 60, the clamping portion 811 obstructs the pushing block 510 to move forward, and the clamping tongue 81 is rotatably mounted on the universal nail box rear end assembly 7 through a pin 8130; the nail box base 5 is rotatably arranged on the nail box rear end general assembly 7; the nail abutting seat assembly 6 is fixed on the rear-end general assembly. How the cutting knife component is matched with the nail abutting seat component 6, the nail box base 5 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, as explained below, the cutting knife component comprises a cutting knife, a knife groove 9 is arranged between two nail abutting plates 62 of the nail abutting seat component 6, the knife groove 9 is arranged on the nail box component 4, and the cutting knife moves back and forth along the knife groove 9. The position relation among the push block 510, the cutting knife and the nail pushing slide block 43 can be specifically selected to be that the push block 510 pushes the cutting knife arranged in the knife groove 9 to move forwards, and when the cutting knife is contacted with the nail pushing slide block 43, the cutting knife transmits the pushing force to the pushing slide block arranged on the rib plate 132 in the knife groove 9 to move forwards.
In this embodiment, referring to fig. 7, the pushing block 510 has an i-shaped structure. The i-shaped structure can be better clamped into the accommodating space 60, so that the clamping tongue 81 can realize displacement locking control on the clamping tongue.
In this embodiment, referring to fig. 5, a push plate 431 is fixed on the nail pushing slide block 43, the push plate 431 is slidably disposed in a spacing structure formed by the nail magazine cover 42 and the nail magazine base 5, and the push plate 431 is used for matching with the positioning portion 413; the staple bin cover 42 and the staple bin 41 can be detachably connected through the matching of a concave structure and a convex structure, and the design of the push plate 431 ensures that the staple pushing sliding block 43 can be matched with the clamping tongue 81, and meanwhile, a space is reserved for accommodating a cutting knife assembly. The nail bin 41 and the nail bin cover 42 are provided with a knife groove 9, the cutting knife assembly is slidably mounted in the knife groove 9, the nail pushing sliding block 43 is provided with a rib plate 432, and the rib plate 432 is slidably mounted in the knife groove 9. The cutter groove 9 can play a role in guiding the cutter assembly and the nail pushing sliding block 43, so that the cutter assembly and the nail pushing sliding block can be always on a fixed track when moving, and the stability and reliability of the operation are guaranteed.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can 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 (15)
1. An endoscopic stapler, comprising:
the nail magazine comprises a cutter mechanism, a nail magazine component, a nail box base, a nail abutting seat component, a safety component and a nail box rear end general component;
the cutting knife mechanism includes:
the guide groove comprises a high-level groove, a transition groove and a low-level groove, and the transition groove is used for connecting the high-level groove and the low-level groove;
a support piece is fixed on a cutter handle of the cutter, the support piece is arranged in the guide groove and can reciprocate in the high-position groove, the transition groove and the low-position groove, and the cutter is hung on the guide groove through the support piece;
the cutting knife is also provided with a first hook;
the output end of the push-pull piece is used for pushing and pulling the cutting knife, and a second hook is fixed at the output end of the push-pull piece;
when the push-pull piece pushes the cutting knife from the high groove to the low groove, the first hook approaches to the second hook, and when the support piece reaches the low groove, the first hook and the second hook are buckled; when the push-pull piece pulls the cutting knife from the low groove to the high groove, the first hook is gradually far away from the second hook, and when the supporting piece reaches the high groove, the first hook and the second hook are separated;
the nail bin assembly is detachably arranged on the nail box base; when the nail bin assembly is taken out of the nail box base, the safety assembly can block the push-pull piece from moving forwards, and when the nail bin assembly is installed on the nail box base, the nail bin assembly overcomes the resistance of the safety assembly and relieves the limitation on the front-back displacement of the push-pull piece;
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 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 trend 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 endoscopic stapler of claim 1, wherein: the left side and the right side of the cutting knife in the advancing direction are respectively provided with the supporting pieces, and the supporting pieces are respectively provided with the guide grooves.
3. The endoscopic stapler of claim 1, wherein: the nail bin assembly comprises a nail bin, a nail bin cover and a nail pushing sliding block;
the nail storehouse is used for holding the sewing nail, be equipped with logical groove along vertically on the nail storehouse, the cutting knife passes logical groove, be fixed with first gusset on the nail storehouse, the nail storehouse is covered and is fixed with the second gusset or be equipped with the inner wall structure that first gusset matches the adaptation, second gusset or inner wall structure with form between the first gusset the guide way.
4. The endoscopic stapler of claim 3, wherein: when the nail bin is installed, the nail bin pushes the nail pushing sliding block and the cutting knife into the high-position groove.
5. The endoscopic stapler of 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.
6. The endoscopic stapler of claim 5, 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.
7. The endoscopic stapler of claim 1, wherein: an inclined surface structure is arranged on one side, close to the nail bin assembly, of the clamping portion and used for being matched with the nail bin assembly, and when the nail bin assembly is installed, the nail bin assembly applies pressure to the inclined surface structure and enables the clamping tongue to turn over.
8. The endoscopic stapler of claim 1, wherein: the fuse assemblies are arranged in pairs in the left-right direction.
9. An endoscopic stapler, comprising:
the nail magazine comprises a cutter mechanism, a nail magazine component, a nail box base, a nail abutting seat component, a safety component and a nail box rear end general component;
the cutting knife mechanism includes:
the guide groove comprises a high-level groove, a transition groove and a low-level groove, and the transition groove is used for connecting the high-level groove and the low-level groove;
a support piece is fixed on a cutter handle of the cutter, the support piece is arranged in the guide groove and can reciprocate in the high-position groove, the transition groove and the low-position groove, and the cutter is hung on the guide groove through the support piece;
the cutting knife is also provided with a first hook;
the output end of the push-pull piece is used for pushing and pulling the cutting knife, and a second hook is fixed at the output end of the push-pull piece;
when the push-pull piece pushes the cutting knife from the high groove to the low groove, the first hook approaches to the second hook, and when the support piece reaches the low groove, the first hook and the second hook are buckled; when the push-pull piece pulls the cutting knife from the low groove to the high groove, the first hook is gradually far away from the second hook, and when the supporting piece reaches the high groove, the first hook and the second hook are separated;
the nail bin assembly is detachably arranged on the nail box base; when the nail bin assembly is taken out of the nail box base, the safety assembly can block the push-pull piece from moving forwards, and when the nail bin assembly is installed on the nail box base, the nail bin assembly overcomes the resistance of the safety assembly and relieves the limitation on the front-back displacement of the push-pull piece;
the nail box base is provided with a safety through hole;
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 abutting seat assembly, the elastic piece is further fixed on the clamping tongue, and the elastic piece has an elastic trend that the clamping part of the clamping tongue penetrates through the safety through hole.
10. The endoscopic stapler of claim 9, wherein: the left side and the right side of the cutting knife in the advancing direction are respectively provided with the supporting pieces, and the supporting pieces are respectively provided with the guide grooves.
11. The endoscopic stapler of claim 9, wherein: the nail bin assembly comprises a nail bin, a nail bin cover and a nail pushing sliding block;
the nail storehouse is used for holding the sewing nail, be equipped with logical groove along vertically on the nail storehouse, the cutting knife passes logical groove, be fixed with first gusset on the nail storehouse, the nail storehouse is covered and is fixed with the second gusset or be equipped with the inner wall structure that first gusset matches the adaptation, second gusset or inner wall structure with form between the first gusset the guide way.
12. The endoscopic stapler of claim 11, wherein: when the nail bin is installed, the nail bin pushes the nail pushing sliding block and the cutting knife into the high-position groove.
13. The endoscopic stapler of claim 9, 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.
14. The endoscopic stapler of claim 13, 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.
15. The endoscopic stapler of claim 9, wherein: the fuse assemblies are arranged in pairs in the left-right direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098956.XA CN112914644B (en) | 2021-01-25 | 2021-01-25 | Endoscope anastomat |
| PCT/CN2021/076911 WO2022156024A1 (en) | 2021-01-25 | 2021-02-19 | Endoscopic stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098956.XA CN112914644B (en) | 2021-01-25 | 2021-01-25 | Endoscope anastomat |
Publications (2)
| Publication Number | Publication Date |
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| CN112914644A CN112914644A (en) | 2021-06-08 |
| CN112914644B true CN112914644B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110098956.XA Active CN112914644B (en) | 2021-01-25 | 2021-01-25 | Endoscope anastomat |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112914644B (en) |
| WO (1) | WO2022156024A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116473606B (en) * | 2022-10-17 | 2024-01-23 | 北京博辉瑞进生物科技有限公司 | Anastomat assembly and anastomat |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112914644A (en) | 2021-06-08 |
| WO2022156024A1 (en) | 2022-07-28 |
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