CN104688288B - Medical stapler - Google Patents
Medical stapler Download PDFInfo
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- CN104688288B CN104688288B CN201510112664.1A CN201510112664A CN104688288B CN 104688288 B CN104688288 B CN 104688288B CN 201510112664 A CN201510112664 A CN 201510112664A CN 104688288 B CN104688288 B CN 104688288B
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- nail
- safety block
- stapler
- nail bin
- banking pin
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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
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
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Abstract
Present invention is disclosed a kind of Medical stapler, including percussion component, nail anvil seat, nail-anvil assembly, nail bin groupware, percussion component includes nail bin push rod, banking pin is provided with nail bin push rod, a safety block that can coordinate with banking pin is provided with nail anvil seat, safety block is provided with neck, and limiting section is additionally provided with nail anvil seat；When stapler is in original state, safety block and limiting section and banking pin are non-interference；When stapler is in cock, safety block offsets with limiting section, and the neck is located at the banking pin from the distal end of the Medical stapler proximally on the mobile route in direction；When stapler returns back to original state in percussion completion, banking pin is fastened in neck, and safety block carries out spacing on the proximate direction of Medical stapler to banking pin.These three states cover the once complete percussion process of nail bin groupware jointly, ensure that nail bin push rod will not be by secondary percussion, it is ensured that the safety of operation.
Description
Technical field
The invention belongs to manufacture technology field of medical appliance, and in particular to a kind of Medical stapler.
Background technology
Usually, for stapler after seaming and cutting action is completed, doctor needs pressing button release to open apparatus, makes nail bin and cuts
Knife is returned to initial position, consequently facilitating apparatus is taken out from operative site.
However, due to some careless doctors or the doctor to lack experience, may be after shot be completed, again
Holding handle causes mistakenly hit to send out, or when carrying out the operation of seaming and cutting next time, mistake takes the apparatus fired to be stitched
Operation is cut, can so cause the generation of malpractice.
The content of the invention
It is an object of the invention to provide a kind of Medical stapler, its apparatus that can prevent from having fired is hit by secondary
Hair.
For achieving the above object, the present invention provides a kind of Medical stapler, including percussion component, nail anvil seat, nail anvil
Component and nail bin groupware, the percussion component include nail bin push rod and ejector pin bar, and the percussion component is used to drive the nail
Storehouse component moves from the proximate of the nail anvil seat, is provided with a banking pin on the nail bin push rod, in the nail anvil seat
Provided with a safety block that can coordinate with the banking pin, the safety block is provided with a neck, is additionally provided with the nail anvil seat
One limiting section coordinated with the safety block；Wherein, when the stapler is in original state, the safety block with it is described spacing
Portion and banking pin are non-interference；When the stapler is in cock, the safety block offsets with the limiting section, described
Safety block and the banking pin are non-interference, and the neck is located at the banking pin from the distal end of the Medical stapler near
On the mobile route of extreme direction；When the stapler returns back to original state in percussion completion, the banking pin is fastened in institute
State in neck, the safety block carries out spacing on the proximate direction of the Medical stapler to the banking pin.
As a further improvement on the present invention, the safety block is configured to be made all the time its distal end to the stapler
Proximal movement pivot power.
As a further improvement on the present invention, the insurance block for installing the safety block, institute are provided with the nail anvil seat
State safety block and the insurance block is pivotally connected, the limiting section is formed on the insurance block.
As a further improvement on the present invention, connect and have elastic component between the safety block and the insurance block.
As a further improvement on the present invention, be provided with pushing slice of nail in the nail bin groupware, on the pushing slice of nail formed with
First support division, first support division are located at the distal end of the banking pin, and the distal end of the safety block supports formed with second
Portion, when the stapler is in original state, the second support division on the safety block and the first support division on the pushing slice of nail
Interfere with each other.
As a further improvement on the present invention, row cutter groove is provided with the pushing slice of nail, first support division includes dividing
Part I and Part II located at the row cutter groove both sides.
As a further improvement on the present invention, the safety block is including insurance block body and convex from the insurance block body
The holding section of stretching, the holding section limit the neck, the notch direction of the neck jointly with the insurance block body
The Medical stapler near-end.
As a further improvement on the present invention, the holding section towards the side of the safety block body distal end formed with leading
To ridge, the angle between the guide ridges and the insurance block body is obtuse angle.
As a further improvement on the present invention, the guide ridges are set to arc transition with the insurance block body junction.
As a further improvement on the present invention, guiding face is provided with the neck, the guiding face is arranged to work as institute
When stating banking pin and being fastened in the neck, the safety block can make described under the power effect of the nail bin groupware installation direction
Banking pin and the exact separation.
Compared with prior art, safety block of the Medical stapler provided by the invention by setting and the system on nail bin push rod
The different mated conditions of dynamic pin, the anti-secondary percussion function of apparatus is realized, in use, nail bin groupware is mounted to nail anvil first
, non-interference with banking pin and limiting section on safety block, percussion component can exert a force to nail bin groupware and fire；When identical
When device is in cock, safety block offsets so that the motion path of banking pin is located at distal end and the card of safety block with limiting section
Between the one end of groove away from safety block；After the completion of once sewing work is cut, nail bin groupware is drawn back into nail anvil seat again
Near-end, namely stapler are in percussion completion status, during this state is returned to, neck on safety block gradually with system
Dynamic pin card is held, and the possibility for preventing nail bin push rod from being fired again, ensure that the safety of operation.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of Medical stapler one of the present invention；
Fig. 2 is the detonation configuration signal that nail bin groupware and nail-anvil assembly coordinate in the embodiment of Medical stapler one of the present invention
Figure；
Fig. 3 is the configuration schematic diagram of the embodiment of Medical stapler one of the present invention；
Fig. 4 is phantom of the stapler in original state in the embodiment of Medical stapler one of the present invention；
Fig. 5 is phantom of the stapler in cock in the embodiment of Medical stapler one of the present invention；
Fig. 6 be in the embodiment of Medical stapler one of the present invention stapler stapler after the completion of percussion in opened condition when
Phantom；
Fig. 7 is the assembling structure schematic diagram of safety block and insurance block in the embodiment of Medical stapler one of the present invention；
Fig. 8 is the structural representation of safety block in the embodiment of Medical stapler one of the present invention；
Fig. 9 is the structural representation that block is insured in the embodiment of Medical stapler one of the present invention；
Figure 10 is phantom when not installing nail bin groupware in the embodiment of Medical stapler one of the present invention.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that one of ordinary skill in the art is made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
Clearly to express position and direction described in the application, using exercises on apparatus author as reference, close to operation
One end of person is near-end, and one end away from operator is distal end.Meanwhile in this application, the lower section for defining stapler is gripping
The direction that handle is extended by housing, it is relative with the lower section, that is, it is defined as the top of stapler.
As shown in figure 1, in an embodiment of the present invention, stapler 100 includes housing 10, from housing 10 to distally stretching
The supporting construction 20 gone out, it is connected to the nail anvil seat 30 of the distal end of supporting construction 20.Nail anvil seat 30 can be fixedly connected with supporting construction 20,
And its cross section is curved, gripping handle 40 is formed below the near-end of housing 10.
Stapler 100 also includes nail bin groupware 32 and nail-anvil assembly 34.In the present embodiment, nail bin groupware 32 and nail anvil
Component 34 is removably mounted on nail anvil seat 30, and is matched with the shape of nail anvil seat 30, is nail bin groupware 32 and nail anvil
The cross section of component 34 is also disposed as arc, in this way, can be coincide in smaller operable space to physiological tissue.
As shown in Fig. 2 nail bin groupware 32 has nail bin 322, the nail bin 322 includes a nail bin face（Do not indicate）, nail bin face
On be arranged with the staple containing groove of a line or multirow in an interleaved manner（Do not indicate）, nail bin groupware 32 is also including being arranged at nail bin
Pushing slice of nail 324 and cutter assembly in 322.Pushing slice of nail 324 can release suturing nail from staple containing groove, cutter assembly bag
Include a knife rest 326 and one be arranged on the cutting knife 328 of the distal end of knife rest 326.A nail bin cover 329 is also configured with nail bin groupware 32 to use
Suturing nail and cutting knife 328 in nail bin 32 take blocking effect, and prevent missing nail and mistakenly hit from sending out.
The row cutter groove 3242 being adapted to the cutting knife 328 is respectively equipped with nail bin face and pushing slice of nail 324, to support cutting knife 328
Percussion operation.In the present embodiment, staple containing groove is located at the both sides of row cutter groove 3242, in this way, being cut to tissue
In sewing process, the broken ends of fractured bone of tissue two of detachment can be sutured simultaneously.
Coordinate shown in reference picture 2 and Fig. 3, in an embodiment of the present invention, the distal end of nail bin groupware 32 is also associated with following closely
Anvil assembly 34, nail-anvil assembly 34 includes nail anvil 342 and knife anvil 344, should while nail bin groupware 32 is installed into nail anvil seat 30
Nail anvil 342 and knife anvil 344 ordinatedly can be arranged on nail anvil seat 30.
Left side and right side support 22,24 of the supporting construction 20 including a pair of opposing, left side and right side support 22,24
Distal end be respectively arranged with can with the pin-and-hole on nail anvil seat 30 and thereon default raised 302 mounting hole 222,242 coordinated, with reality
Existing nail anvil seat 30 is fixed to one another with supporting construction 20.
The near-end of supporting construction 20 is connected to housing 10, and correspondingly, the housing 10 includes left shell half body 12 and right half-shell body
14, to be connected respectively left side and right side support 22,24.
Stapler 100 also includes percussion component 50, and percussion component 50 includes the percussion handle located at the near-end of stapler 100
52nd, the nail bin push rod 54 and the driving member of connection percussion handle 52 and nail bin push rod 54 driven by percussion handle 52.Nail bin
Push rod 54 can drive nail bin groupware 32 to be moved from the proximate of stapler 100, with close in the presence of percussion handle 52
Nail-anvil assembly 34, finally close stapler 100.Now, if being placed with physiology between nail bin groupware 32 and nail-anvil assembly 34
Organize, then the nail bin push rod 54 can drive nail bin groupware 32 to close the physiological tissue close to nail-anvil assembly 34 to press from both sides.
In an embodiment of the present invention, driving member includes front rod 562 and back link 564.The distal end of front rod 562
Pass through front rod pin with nail bin push rod 54（It is not shown）Pivotally connected, the distal end of the near-end and back link 564 of front rod 562 passes through
Back link pin（It is not shown）Pivot is connected, and the near-end of back link 564 is connected in supporting construction 20.
Continue to coordinate reference picture 3, stapler 100 also includes an anti-overflow needle assemblies, and it is anti-overflow that the anti-overflow needle assemblies include one
The actuator push rod 64 of pin push rod 62, the anti-overflow pin push rod 62 of connection, and the anti-overflow pin 61 being arranged in nail bin groupware 32（Join Fig. 2
It is shown）, anti-overflow pin 61 is connected with the linkage of actuator push rod 64.
In an embodiment of the present invention, the anti-overflow pin push rod 62 is arranged to saddle type, and it is provided with symmetrical operation in near-end
Portion, operating portion protrude housing 10 and set.
Anti-overflow needle assemblies also include the rotating crank 66 being connected with anti-overflow pin push rod 62.Rotating crank 66 is pivotally connected
In support 20, while it is movably connected on nail bin push rod 54.By the operating portion of anti-overflow pin push rod 62, can by anti-overflow pin push rod 62 from
The proximate of stapler 100 promotes, meanwhile, when promoting anti-overflow pin push rod 62, the actuator push rod 64 that can also link is to distally
Motion, so as to associatedly promote anti-overflow pin 61 to stapler distal movement.
Operating process of the stapler 100 in Jia Bi physiological tissues in an embodiment of the present invention is as follows：
Under the original state of stapler 100, the angle that front rod 562 is less than 180 degree with back link 564 in one each other is set
Put, and front rod 562 is held in the supporting part 522 in percussion handle 52 with the connecting portion of back link 564.
When needing Jia Bi physiological tissues, physiological tissue can be first positioned over to nail anvil face and the nail bin groupware of nail-anvil assembly 34
Between 32 nail bin face, then, promote anti-overflow pin push rod 62 mobile to stapler distal end, so as to push rod 64 and the anti-overflow pin 61 of linking
Moved to the distal end of stapler, so that anti-overflow pin 61 stretches out from nail bin groupware 32, and be finally provided with nail-anvil assembly 34
Receptacle（Do not indicate）Coordinate, close the opening between nail-anvil assembly 34 and nail bin groupware 32, namely close opening for nail anvil seat 30
Mouthful.
Then, driving percussion handle 52 pivotally rotates towards gripping handle 40, and now, supporting part 522 connects before supporting
The connecting portion of bar 562 and back link 564, front rod 562 is pivoted relative to each other with being forced to back link 564 and increase two towards trend
The state motion of angle between person.
In an embodiment of the present invention, front rod 562 and back link 564 can the driving of supported portion 522 to folder in bigger
Stablize mated condition, and the support division 224 being finally held in supporting construction 20 relatively in 180 degree angle, now front rod 562
Interference state is moved to back link 564.
In the process, the distance limited between the near-end of the distal end of front rod 562 and back link 564 is gradually increased to most
Slightly reduce again after big distance, because the near-end of back link 564 is fixed in supporting construction 20, the distal end of front rod 562 is real
Now driving nail bin push rod 54, the driving force that nail bin push rod 54 is acted on nail bin groupware 32 is so that follow closely towards the distal movement of stapler
Storehouse component 32 be forced to it is close to nail-anvil assembly 34, so as to Jia Bi physiological tissues.
In an embodiment of the present invention, percussion component 50 also includes an ejector pin bar 58, and it is slidably fit into nail
In storehouse push rod 54, the surface that ejector pin bar 58 acts on knife rest 326 is made as the shape to fit each other.
In present embodiment, ejector pin bar 58 and the surface that knife rest 326 acts on are curved.
A wedged plate 524 is connected with percussion handle 52, the wedged plate 524 can be assemblied in nail bin push rod at least in part
With realization and the interaction of ejector pin bar 58 in 54.
Operating process of the stapler 100 when cutting and suturing physiological tissue in an embodiment of the present invention is as follows：
After above-mentioned Jia Bi physiological tissues operation is completed, percussion handle 52 is in handle return spring（It is not shown）Drive under court
Direction away from gripping handle 40, which rotates, realizes automatically reseting for percussion handle 52.
In the process, the wedged plate 524 in percussion handle 52, which is triggered, is held on ejector pin bar 58, now, then passes through
Percussion handle 52 is pivoted towards the direction of gripping handle 40, wedged plate 524 is promoted ejector pin bar 58 to the remote of stapler
End motion, to realize to being fired while cutting knife 328 and pushing slice of nail 324, pushing slice of nail 324 promotes the suture in staple containing groove
Clench on physiological tissue, while cutting knife 328 is cut to corresponding physiological tissue.
The near-end of ejector pin bar 58 has the holding part 582 extended outside nail bin push rod 54, and percussion component also includes one
The reseting elastic element 59 being connected between the holding part 582 and supporting construction 20, in an embodiment of the present invention, reset bullet
Property element 59 is an extension spring.
During ejector pin bar 58 is by percussion, the reseting elastic element 59 is in extended state, and stapler is firing
It is that physiological tissue has been carried out after cutting and suturing, reseting elastic element 59 will push away in the presence of itself pulling force under state
Nail rod 58 retracts, simultaneously, you can retracts the knife rest 326 for being provided with cutting knife 328, was entirely fired in this way, stapler completes
Journey, reach percussion completion status.
After stapler reaches percussion completion status, by pressing button release 70 nail bin push rod 54 can be driven to be returned from distal end
Again to initial position, to open the nail bin groupware 32 and nail-anvil assembly 34 of closure so that stapler is in open mode, in order to
The tissue of cut suture is taken out.
In an embodiment of the present invention, button release 70 is movably connected in supporting construction 20 by a button release pin 702,
Also, the near-end of back link 564 can also be realized relatively solid with supporting construction 20 by the connection with the button release pin 702
It is fixed.
The distal end of button release 70 has what can be acted on back link 564 to support end 704, and when pressing button release 70, this is supported
It is the front rod 562 towards the state motion formed less than 180 degree angle that end 704, which can drive front rod 562 and back link 564,
Moved beneath with from the connecting portion of the back link 564 to stapler is relative between front rod 562 and back link 564 to destroy
Stable mated condition, and then nail bin push rod 54 and nail bin groupware 32 are returned to opposite proximal end, so as to by apparatus from Surgery
Take out position.
Certainly, the stapler is if desired reused, new nail bin groupware 32 and/or nail-anvil assembly 34 can be replaced, from
And carry out the cutting suture of next time.However, inevitably, in surgical procedure, nail bin can be caused due to the error of operator
Component 32 fires again in the case of not being fully realized for various reasons and not changing, only corresponding in the nail bin groupware 32 now fired
Cutting knife 328 can implement cutting to physiological tissue, but lack corresponding suturing nail, and then trigger accident surgery.Therefore, this
Invent in the stapler 100 that refers to, relative set insurance institution is such a to avoid the occurrence of.
Join Fig. 4 to Fig. 6, be provided with a banking pin 542 on nail bin push rod 54, one is connected with nail anvil seat 30 can be with system
The safety block 38 that dynamic pin 542 coordinates, safety block 38 are provided with neck 384.A limiting section 362 is additionally provided with nail anvil seat, works as kiss
Clutch 100 is in original state, i.e., when nail bin groupware 32 is assembled on nail anvil seat 30（Fig. 4 states）, safety block 38 is with braking
Pin 542 and limiting section 362 are non-interference, at this point it is possible to pressing percussion handle 52 promotes the distal movement of nail bin push rod 54, so as to
The distal movement of nail bin groupware 32 is driven, so that stapler 100 closes, when stapler 100 is in cock（Fig. 5 states）,
Banking pin 542 moves to its distalmost end, and safety block 38 offsets with limiting section 362, and neck 384 is located at banking pin 542 from kiss
The distal end of clutch is proximally on the mobile route in direction, and now, banking pin 542 and safety block 38 are still non-interference, when identical
Device 100 is when after the completion of percussion in opened condition（Fig. 6 states）, nail bin push rod 54 is in the presence of button release 70 from its distal end quilt
Initial position is returned to, banking pin 542 is fastened in from its distal end proximal movement and finally in neck 384, safety block 38 simultaneously
Banking pin 384 is carried out in the proximate direction of Medical stapler 100 it is spacing, so as to limit the motion of nail bin push rod 54,
Play anti-secondary percussion effect.
Join Fig. 4, when stapler 100 is in original state, i.e., when nail bin groupware 32 is assembled on nail anvil seat 30, safety block
38 is non-interference with banking pin 542, and neck 384 separates with banking pin 542, and the motion of nail bin push rod 54 is not by safety block 38
Limitation, nail bin groupware 32 can unhinderedly be fired under the driving of nail bin push rod 54 and ejector pin bar 58.With this adaptively, follow closely
It is located at the remote of banking pin 542 formed with the first support division 3241, first support division 3241 on pushing slice of nail 324 in storehouse component 32
End, when stapler 100 is in original state, i.e., after nail bin groupware 32 is assembled on nail anvil seat 30, the distal end of safety block 38 with
The first support division 3241 on pushing slice of nail 324 interferes with each other, to limit the rotation of safety block 38, it is preferable that safety block 38 it is remote
End is formed with corresponding second support division 382, and when nail bin groupware 32 is in original state, the first support division 3241 can be with safety block
The second support division 382 on 38 interferes with each other.In the present embodiment, the first support division 3241 includes being respectively arranged at row cutter groove
The Part I and Part II of 3242 both sides.
Join Fig. 5, when stapler 100 is in cock, the self-fitting device in the presence of percussion handle 52 of ejector pin bar 58 is near
Distal movement is held, distal movement, safety block 38 are lost on pushing slice of nail 324 simultaneously so as to promote pushing slice of nail 324 and cutting knife 328
First support division 3241 is to its interference effect, safety block 38 and then the rotary motion for doing pivot, until the limit in nail anvil seat 30
Position portion 362 supports with safety block 38, prevents the further rotation of safety block 38.During stapler fires, neck 384
On all or part of structure motion to the motion path of banking pin 542, after ensureing that nail bin push rod 54 is pulled, banking pin thereon
542 can be engaged in neck 384, meanwhile, the motion path of banking pin 542 is deviateed in the distal end of safety block 38, ensures that nail bin pushes away
Bar 54 being capable of return.
Join Fig. 6, when stapler 100 is when after the completion of percussion in opened condition, pressing button release 70, nail bin push rod 54 is being released
Put the distal end proximal movement of self-fitting device 100 in the presence of button 70 and return back to initial position, nail bin groupware 32 pushes away in nail bin
Under the drive of bar 54 from the distal end of nail anvil seat 11 proximally when, existed by the pushing slice of nail 324 fired to the distal end of nail bin 121
Relative displacement will not be produced in nail bin 121, that is, when nail bin groupware 32 is in percussion completion status, on pushing slice of nail 324
First support division 3241 will not return back to can produce the position interfered to the distal end of safety block 38, and the braking in nail bin push rod 54
Pin 542 moves with activateding towards the near-end of safety block 38, until with the clamping each other of the neck 384 on safety block 38.
Coordinating reference picture 7, in order to ensure the smooth implementation of above-mentioned action, safety block 38 includes insurance block body 381 to Fig. 9
And the holding section 383 that self-protective block body 381 protrudes out, the holding section 383 limit above-mentioned jointly with insurance block body 381
Neck 384, it is preferable that the notch of the neck 384 is towards the near-end of stapler 100.Holding section 383 is remote towards insurance block body 381
Formed with guide ridges 385, the angle between the guide ridges 385 and insurance block body 381 is obtuse angle for the side at end.Need what is illustrated
It is that " obtuse angle " mentioned here is to illustrate to have an expansion for being more than vertical angle between guide ridges 385 and insurance block body 381
Angle, and the junction for not limiting guide ridges 385 and insuring between block body 381 is sharp, on the contrary, guide ridges 385
Arc transition is set to insurance block body 381 junction, preferably to guide banking pin 542 to be engaged to card along guide ridges 385
In groove 384.
When stapler 100 original state, cock and percussion after the completion of stapler in opened condition between switch when, protect
A driving link of the dangerous block 38 as action, in particular, in a manner of drivingly being rotated, realization pushes away with nail bin groupware 32 and nail bin
The difference that bar 54 coordinates in above-mentioned several states.
The insurance block 36 for installation insurance block 38, safety block 38 and the insurance pivot of block 36 are provided with nail anvil seat 30
Connection.Specifically, safety block 38 and insurance block 36 are provided with the mounting hole to correspond to each other（Do not indicate）, a pivotal axis 37 distinguishes
Safety block 38 is realized through those mounting holes and insures the pivotally connected of block 36.Meanwhile in order to realize above-mentioned safety block 38
Rotary motion, can be the torsion spring that actuatable safety block 38 is set for example on pivotal axis 37, alternatively and preferably, in this implementation
In mode, realize that the flexible member 39 is given all the time by connecting flexible member 39 between safety block 38 and insurance block 36
Safety block 38 1 pivots power, and there is a kind of proximal movement to stapler 100 distal end of effect safety block 38 all the time
Trend.
As preferred embodiment, above-mentioned limiting section 362 is formed on insurance block 36.It is provided with safety block 38
First supporting surface 387, be correspondingly provided with limiting section 362 optionally with the phase of the first supporting surface 387 on safety block 38
The second supporting surface 364 supported, stapler 100 press from both sides in original state between the supporting surface 364 of the first supporting surface 387 and second
It is at an angle；In cock, the first supporting surface 387 and the second supporting surface 364 mutually support stapler 100, with limit
The motion of safety block 38 processed；When after the completion of percussion in opened condition, i.e., nail bin groupware 32 is drawn stapler 100 by nail bin push rod 54
During being back to initial position, banking pin 542 is engaged in neck 384 along guide ridges 385, and safety block 38 can be forced to ground pivot
Turn that the first supporting surface 387 and the second supporting surface 364 are briefly separated, until the opening completely of stapler 100 is nail bin groupware
32 when returning back to original state, and the first supporting surface 387 and the second supporting surface 364 support each other again.Certainly, in some embodiment party
In formula, stapler after the completion of percussion in opened condition when, the first supporting surface 387 and the second supporting surface 364 also not necessarily by
It is arranged to support each other, and only needs to ensure the cooperation of neck 384 and banking pin 542, above-mentioned show is only one preferred
Embodiment, and not limit.
Join Figure 10, in the present embodiment, guiding face 386 is additionally provided with neck 384, the guiding face 386 is arranged to
When banking pin 542 is fastened in neck 384, safety block 38 can make braking in the presence of the power of the installation direction of nail bin groupware 32
Pin 542 separates with neck 384.After user removes the nail bin groupware after percussion, neck 384 and system on safety block 38
Dynamic pin 542 is in the state being fitted to each other, and when re-replacing new nail bin groupware, user need not pay close attention to banking pin 542
With the mated condition of neck 384 now, the first limiting section 3241 on the pushing slice of nail 324 in the nail bin groupware not fired can be with guarantor
The distal end effect of dangerous block 38 so that depart from the self-retention pin 542 of neck 384, after ensureing that nail bin groupware is changed, apparatus can be with
Smoothly fire.
During the use of Medical stapler 100 of the present invention, nail bin groupware 32 is mounted on nail anvil seat 30 first（Figure
State shown in 4）, the distal end of the first support division 3241 and safety block 38 in nail bin groupware 32 on pushing slice of nail 324 interferes so that protects
Dangerous block 38 is not in contact with each other with the banking pin 542 on nail bin push rod 54, and percussion component 50 can exert a force to nail bin push rod 54 makes nail bin
Component 32 closes with respect to nail-anvil assembly and the force of nail bin groupware 32 is fired；Nail bin groupware 12 is fired to quilt from beginning
During after percussion, stapler is in cock（State shown in Fig. 5）, the first support division 3241 on pushing slice of nail 324 with
Safety block 38 is gradually disengaged, meanwhile, under the stretching action of flexible member 39, the rotary motion of safety block 38, and make banking pin 542
Moving line between the distal end of safety block 38 and holding section 383, ensure nail bin push rod 54 can smooth return while
Ensure that banking pin 542 can be engaged in neck 384；After the completion of once sewing work is cut, nail bin groupware 32 is drawn again
It is back to the near-end of nail anvil seat 30, namely the open mode that stapler 100 is in after the completion of percussion（State shown in Fig. 6）, replying
During this state, banking pin 542 crosses holding section 383 along guide ridges 385, and is finally engaged in neck 384, resistance
The possibility that the nail bin groupware 32 only fired is fired again, ensure that the safety of operation.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (10)
1. a kind of Medical stapler, including percussion component, nail anvil seat, nail-anvil assembly and nail bin groupware, the percussion component bag
Nail bin push rod and ejector pin bar are included, the percussion component is used to drive the nail bin groupware to transport from the proximate of the nail anvil seat
It is dynamic, it is characterised in that a banking pin to be provided with the nail bin push rod, being provided with one in the nail anvil seat can match somebody with somebody with the banking pin
The safety block of conjunction and a limiting section coordinated with the safety block, the safety block are provided with a neck；Wherein, when the kiss
For clutch in original state, the safety block and the limiting section and banking pin are non-interference；When the stapler is in percussion shape
During state, the safety block offsets with the limiting section, and the safety block and the banking pin are non-interference, and the slot
In the banking pin from the distal end of the Medical stapler proximally on the mobile route in direction；When the stapler is firing
Into when returning back to original state, the banking pin is fastened in the neck, and the safety block is near the Medical stapler
Hold spacing to banking pin progress on distally.
2. Medical stapler according to claim 1, it is characterised in that the safety block is configured to be made it all the time
Distal end pivots power to the proximal movement of the stapler.
3. Medical stapler according to claim 2, it is characterised in that the installation insurance is provided with the nail anvil seat
The insurance block of block, the safety block and the insurance block are pivotally connected, and the limiting section is formed on the insurance block.
4. the Medical stapler according to Claims 2 or 3, it is characterised in that between the safety block and the insurance block
Connection has elastic component.
5. Medical stapler according to claim 1, it is characterised in that pushing slice of nail, institute are provided with the nail bin groupware
State formed with the first support division on pushing slice of nail, first support division is located at the distal end of the banking pin, the safety block it is remote
End is formed with the second support division, and when the stapler is in original state, the second support division on the safety block pushes away with described
The first support division interferes with each other on nail piece.
6. Medical stapler according to claim 5, it is characterised in that row cutter groove is provided with the pushing slice of nail, it is described
First support division includes the Part I and Part II for being divided into the row cutter groove both sides.
7. Medical stapler according to claim 1, it is characterised in that the safety block is including insurance block body and certainly
The holding section that the insurance block body protrudes out, the holding section limit the neck, institute jointly with the insurance block body
The notch of neck is stated towards the Medical stapler near-end.
8. Medical stapler according to claim 7, it is characterised in that the holding section is remote towards the insurance block body
Formed with guide ridges, the angle between the guide ridges and the insurance block body is obtuse angle for the side at end.
9. Medical stapler according to claim 8, it is characterised in that the guide ridges are connected with the insurance block body
Place is set to arc transition.
10. Medical stapler according to claim 1, it is characterised in that guiding face is provided with the neck, it is described to lead
Draw face to be arranged to when the banking pin is fastened in the neck, the safety block can be in the nail bin groupware installation direction
Power effect under make the banking pin and the exact separation.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112664.1A CN104688288B (en) | 2015-03-13 | 2015-03-13 | Medical stapler |
| EP15773980.6A EP3127491B1 (en) | 2014-04-04 | 2015-04-03 | Medical anastomose device |
| PCT/CN2015/075828 WO2015149715A1 (en) | 2014-04-04 | 2015-04-03 | Medical anastomose device |
| BR112016022905-3A BR112016022905B1 (en) | 2014-04-04 | 2015-04-03 | medical anastomosis device |
| JP2016600106U JP3209123U (en) | 2014-04-04 | 2015-04-03 | Medical stapler |
| ES15773980T ES2908908T3 (en) | 2014-04-04 | 2015-04-03 | Anastomosis Medical Device |
| RU2016139668A RU2657204C2 (en) | 2014-04-04 | 2015-04-03 | Medical device for anastomosis |
| CA2942427A CA2942427C (en) | 2014-04-04 | 2015-04-03 | Medical anastomosis device |
| AU2015240204A AU2015240204B2 (en) | 2014-04-04 | 2015-04-03 | Medical anastomose device |
| US15/278,961 US10226255B2 (en) | 2014-04-04 | 2016-09-28 | Medical anastomosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112664.1A CN104688288B (en) | 2015-03-13 | 2015-03-13 | Medical stapler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104688288A CN104688288A (en) | 2015-06-10 |
| CN104688288B true CN104688288B (en) | 2017-11-21 |
Family
ID=53336145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510112664.1A Active CN104688288B (en) | 2014-04-04 | 2015-03-13 | Medical stapler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104688288B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476679B (en) * | 2016-02-06 | 2018-07-17 | 苏州英途康医疗科技有限公司 | Linear incision anastomat nail storehouse component and linear incision stapler |
| CN106236167A (en) * | 2016-06-30 | 2016-12-21 | 盐城远扬医疗器械科技有限公司 | Anastomat |
| CN115038387A (en) * | 2020-02-03 | 2022-09-09 | 柯惠有限合伙公司 | Surgical stapling instrument with curved end effector assembly |
| CN114424957B (en) * | 2020-10-29 | 2024-05-14 | 苏州英途康医疗科技有限公司 | Anastomat firing structure and anastomat |
| CN114259269B (en) * | 2021-12-23 | 2023-12-26 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| CN114098871B (en) * | 2021-11-26 | 2023-09-29 | 赛诺微医疗科技（浙江）有限公司 | Firing safety structure, anastomat and medical equipment |
| WO2023150958A1 (en) * | 2022-02-10 | 2023-08-17 | Covidien Lp | Curved stapling device with enhanced lockout |
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| CN104688288A (en) | 2015-06-10 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021 science and Technology Plaza, Jinji Lake Road International Science and Technology Park, Suzhou Industrial Park, Jiangsu, 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |
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