CN104224260B - The anti-error firing safety mechanism of anastomat and anastomat thereof - Google Patents
The anti-error firing safety mechanism of anastomat and anastomat thereof Download PDFInfo
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- CN104224260B CN104224260B CN201410481825.XA CN201410481825A CN104224260B CN 104224260 B CN104224260 B CN 104224260B CN 201410481825 A CN201410481825 A CN 201410481825A CN 104224260 B CN104224260 B CN 104224260B
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- percussion
- anastomat
- handle
- flexible handle
- fixed handle
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
- A61B2017/00663—Type of implements the implement being a suture
-
- 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 present invention provides the anti-error firing safety mechanism of a kind of anastomat, including fixed handle and flexible handle, flexible handle top is provided with shackle member, percussion retaining mechanism it is provided with on fixed handle on front side of flexible handle, this percussion retaining mechanism coordinates with shackle member, when flexible handle turns to forward Guan Bi, shackle member is locked by percussion retaining mechanism, and fixed handle is additionally provided with the unlocking mechanism for making shackle member separate with percussion retaining mechanism；Present invention also offers a kind of anastomat, including the anti-error firing safety mechanism of anastomat.The present invention can be locked after Guan Bi flexible handle for the first time, can not automatically reset, now because handle is in closure state, have to be unlocked by operation unlocking mechanism and just can carry out firing for the second time, avoid doctor's erroneous judgement and mistakenly hit to send out and cause operative failure, it is ensured that the correctness of operation technique order；Simultaneously by resetting-mechanism, doctor can be made to select suitably organize to close again and cut.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly to anti-error firing safety mechanism and the anastomat thereof of a kind of anastomat.
Background technology
Abdominal cavity formula and or in peep in operation process, operation process is by the little otch of patient or the narrow cannula that inserts wound
It is carried out.Traditional or open during, doctor directly contacts operative site.The patient trauma reduced due to it, contracting
Short patient's convalescent period and significantly reduce overall cost, formula operating-table opposing open operation in abdominal cavity has advantage.In order to coordinate inner peeping type
With the real needs of abdominal cavity formula, inner peeping type robotic suturing device has been developed that and enables the clinician to contact with comparalive ease operative site.Typically,
These suture instrumentses include being supported on approach robotic suturing device end can be hinged tool component.This tool component can be by selectively
Manipulation enables the surgeon to manipulate operation device in limited space.These instruments are peeped operation and are provided significantly medical treatment benefit in giving.
Improve to some extent in complexity nevertheless, it is desirable to reduce at cost and manufacture.Endo-GIA is open cutting kiss at present
Clutch apparatus volume is bigger, and surgical patient otch is bigger, patient is recovered pessimistic time long, increases patient suffering,
Endo-GIA percussion safety device design at present is not ideal enough, and it is the most convenient to use, and is easily generated mistakenly hit and sends out, affects successful surgery
Rate, increases patient suffering.
Present stage, mirror anastomat in chamber was during Clinical practice, and doctor fully relies on operation handle, realized apparatus Guan Bi and cutting
Two functions, two processes have strict timing requirements simultaneously, it is necessary to first close tissue, can fire and cut；And
Existing anastomat, after carrying out Guan Bi tissue, handle is still kept in the center, and handle can directly fire completely, and doctor cannot sentence
Break and whether be complete cutting, cause doctor to judge confusion, in fact it could happen that the situation repeatedly closing and cutting, cause operative failure；
Being unfamiliar with the doctor of apparatus, Guan Bi is not switched on insuring after organizing and operates apparatus by force, will also result in operative failure.Therefore need badly
One can allow doctor easy to operate, and can clearly judge whether the most cleaved anastomat.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the anti-error firing safety mechanism of a kind of anastomat
And anastomat, it is possible to it is locked after flexible handle for the first time Guan Bi, it is simple to doctor clearly judges whether to fire, and keeps away
Exempt from doctor's misjudgment and maloperation, cause operative failure.
For achieving the above object and other relevant purposes, the present invention provides the anti-error firing safety mechanism of a kind of anastomat, including solid
Determining handle and flexible handle, described flexible handle top is provided with shackle member, and the fixed handle on front side of described flexible handle is arranged
Having percussion retaining mechanism, this percussion retaining mechanism coordinates with described shackle member, when flexible handle turns to forward Guan Bi, described
Shackle member is locked by percussion retaining mechanism, described fixed handle is additionally provided with for making shackle member separate with percussion retaining mechanism
Unlocking mechanism.
Using said structure, when carrying out tissue closure, after first time operant activity handle closes, percussion retaining mechanism will card
Fitting blocks so that flexible handle is locked in closure state, it is impossible to automatically reset.Now because handle is in closure state, doctor
No matter can understand in terms of visual aspects or practical operation that judgement can not carry out second time and fire, it is necessary to pass through unlocking mechanism
Unlock and just can carry out firing for the second time, thus allow doctor be apparent from operation technique and walk to which, it is to avoid doctor's erroneous judgement and mistake
Percussion causes operative failure.Fore-and-aft direction of the present invention, be to set according to the operation mode of anastomat, i.e. anastomat
Fixed handle is rear portion, and the closing of cutting portion of anastomat is anterior.
As preferably: described percussion retaining mechanism includes that guide, spring and locking piece, described guide tilt along the vertical direction
Being arranged on fixed handle, described lower spring end is supported on fixed handle sidewall, and spring top is connected with described locking piece bottom,
Described locking piece can move up and down along guide under the action of the spring, and described locking piece is provided with the clamping adapted with shackle member
Head, the poke rod of described tripper is connected with locking piece, and when unlocking, poke rod is stirred locking piece, made clamping joint and clamping
Part separates.
On the other hand on the one hand guide can play the guiding role with support lock stop member, limits the range of movement of locking piece, by bullet
Spring supports, and makes locking piece to move up and down, and automatically resets, and the poke rod of tripper can also be by stirring clamping joint
Realize unlocking.
As preferably: described fixed handle is the housing of hollow, described flexible handle is rotatably mounted at fixed handle by pin
On, described guide is the gathering sill being opened on fixed handle medial wall, and this gathering sill turns forward, described fixed handle
Being equipped with a gathering sill on two medial walls, described locking piece includes the support member of horizontally set and the percussion arranged that turns forward
Release link and the first guide pad, this support member is parallel with the pin of flexible handle, and described percussion release link is provided with the second guiding
Block, bottom with the first guide pad and percussion release link respectively, the both ends of described support member is connected, described first guide pad and the
Two guide pads are respectively protruding in two described gathering sills.
The mode that locking piece bottom can also be used to stretch in spring guides and supports, and it is multiple that gathering sill can also be opened in percussion
On the bar of position, guide pad is arranged on flexible handle inwall.
As preferably: described shackle member is positioned on front side of flexible handle upper end, and this shackle member includes the main body of bar shaped, this body front end
Portion extends to side and forms projection, and the front lower surface of this projection is inclined plane, and described clamping joint is connected to propping up of described locking piece
On rear side of support member, this clamping joint is block, and this clamping joint front portion offers clamping gap, and clamping joint upper rear end is front lower with projection
The inclined plane that end face is corresponding, when described flexible handle rotates forward, described projection snaps in clamping gap, is locked by flexible handle
It is scheduled on closure state.
Body front end portion can extend formation projection in side to the left or to the right, and clamping gap is positioned at clamping joint front upper surface, flexible handle
When rotating forward, the inclined plane of the inclined plane of boss front end extruding clamping joint rear end, later fall in clamping gap, spring to
On active force under formed locking.This interface arrangment coordinates stable, and simple in construction is convenient to operate.
As preferably: described unlocking mechanism is arranged on the fixed handle in percussion retaining mechanism front, and this unlocking mechanism includes spacing
Sleeve, the safety button of cylindricality, back-moving spring and poke rod, described spacing collar is vertically mounted on fixed handle, and with work
Fixed handle pin parallel, described safety button and back-moving spring are co-axially mounted in spacing collar, described poke rod connect
In safety button and vertical with safety button；
Having bar shaped limited mouth on described spacing collar rear wall vertically, described poke rod is arranged in this limited mouth, and can be
Move along limited mouth length direction under action of reset spring, limited mouth limit poke rod spacing collar circumference motion, described
Support member upper surface offers draw-in groove, and the width on this draw-in groove top narrows from the width from top to bottom, and this draw-in groove upper portion side wall is towards draw-in groove two
Rolling oblique inclined-plane, described poke rod one end is connected with safety button, and the other end stretches in described draw-in groove, limits described locking piece
Moving upward, when pressing described safety button, described poke rod is slid into the percussion release link of locking piece by draw-in groove upper portion side wall
Upper surface, described locking piece drives clamping joint to move downward, and clamping joint separates with shackle member, and described flexible handle resets.
Poke rod is connected with in the middle part of safety button, and during flexible handle closed-lock, poke rod is positioned at draw-in groove, when needs unlock,
Pressing safety button, safety button drives poke rod to move along limited mouth, and poke rod is by extruding draw-in groove sidewall, by draw-in groove top
Side walls, to the percussion release link upper surface of locking piece, makes locking piece move downward along spring direction, and the boss of shackle member is from card
Discharging in the clamping gap of joint, flexible handle is reset to open mode under the active force of torsion spring, now can hit
Send out operation.After unclamping safety button, poke rod moves to draw-in groove under action of reset spring.
As preferably: described support member is rectangular block shape, described draw-in groove is two, is disposed side by side on support member；Described spring
Being two, be respectively supported at bottom, support member two ends, described clamping joint is two, is connected to support member both ends, described
Shackle member is two, corresponding with two clamping joints respectively.
As preferably: described spacing collar, guide are one-body molded with fixed handle, described percussion release link and clamping joint with
Support member is one-body molded, by the way of integrated injection molding, it is simple to produce, and sound construction.
As preferably: described fixed handle top is additionally provided with resetting-mechanism, and resetting-mechanism includes tooth bar, reseting plate, reset button,
Described tooth bar upper level is provided with raised line, and this raised line offers downward opening stopper slot, described stopper slot two side be to
The inclined-plane of outer incline, the upper end of described percussion release link is stretched in this stopper slot, and this percussion release link upper surface is and stopper slot groove
The curved surface that wall is corresponding, when described reset button pulls tooth bar rearward movement, described percussion release link is made in the extruding of stopper slot cell wall
Moving downward under with, described clamping joint separates with shackle member, and flexible handle resets.
Using said structure, when pulling back tooth bar, stopper slot cell wall extruding percussion release link upper surface, in percussion release link
End exits stopper slot, is against raised line lower surface, moves downward owing to percussion release link moves downward drive clamping joint, so that convex
Platform departs from clamping gap, it is achieved unlocking, flexible handle resets under the effect of handle torsion spring；This resetting-mechanism is not for preparing to hit
Use when sending out, i.e. unselected right in make position, or when wanting to adjust make position, pull SR, easy to operate；
After unclamping SR, tooth bar resets, and percussion release link resets under spring action；Percussion release link edge in the process
Gathering sill moves up and down；The ratchet of tooth bar bottom and the click-fit being arranged on flexible handle upper end.
As preferably: described percussion release link is strip, this percussion release link upper surface is arcwall face, this percussion release link upper end
The radius of front side is more than the radius of rear side.
The present invention also provides for a kind of anastomat, including the anti-error firing safety mechanism of described anastomat, the most also includes conventional kiss
The parts of clutch, do not repeat.
As it has been described above, the invention has the beneficial effects as follows: can be locked after Guan Bi flexible handle for the first time, it is impossible to automatically multiple
Position.Now because handle is in closure state, no matter doctor can understand in terms of visual aspects or practical operation that judgement can not
Carry out second time to fire, it is necessary to unlocked by peripheral operation unlocking mechanism and just can carry out firing for the second time, thus allow doctor understand
Know operation technique arrive which step, it is to avoid doctor's erroneous judgement and mistakenly hit are sent out and are caused operative failure, it is ensured that operation technique order
Correctness；Simultaneously by resetting-mechanism, doctor can be made to select suitably organize to close again and cut, it is to avoid repeatedly close
And cutting operation, increase patient suffering, cause operative failure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-error firing safety mechanism of anastomat in the embodiment of the present invention；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the opposite side view of the anti-error firing safety mechanism of anastomat in the embodiment of the present invention；
Fig. 4 is the right half side structural representation of fixed handle in the embodiment of the present invention；
Fig. 5 is the left half side structural representation of fixed handle in the embodiment of the present invention；
Fig. 6 is structural representation during anastomat original state in the embodiment of the present invention；
Fig. 7 is structural representation during anastomat percussion locking in the embodiment of the present invention；
Fig. 8 is the partial enlarged view of Fig. 7；
Structural representation when Fig. 9 is that in the embodiment of the present invention, anastomat percussion unlocks；
Figure 10 is the partial enlarged view of Fig. 9；
Structural representation when Figure 11 is that in the embodiment of the present invention, anastomat does not fires reset；
Figure 12 is the partial enlarged view of Figure 11.
Piece mark explanation
1 fixed handle
2 flexible handles
21 shackle member
23 pins
3 percussion retaining mechanisms
31 support members
32 percussion release links
33 clamping joints
34 clamping gap
35 gathering sills
36 springs
37 draw-in grooves
38 first guides
39 reinforcements
4 unlocking mechanisms
41 spacing collars
42 safety button
43 back-moving springs
44 limited mouths
45 poke rods
5 resetting-mechanisms
51 tooth bars
52 reseting plates
53 reset button
54 return pins
55 raised lines
56 stopper slots
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art can be taken off by this specification
The content of dew understands other advantages and effect of the present invention easily.
As shown in Figures 1 to 12, the present invention provides the anti-error firing safety mechanism of a kind of anastomat, including fixed handle 1 and work
Fixed handle 2, fixed handle 1 is the housing of hollow, and flexible handle 2 is rotatably mounted at fixed handle by pin 23 and torsion spring
In 1, flexible handle 2 top is provided with shackle member 21, and the fixed handle 1 on front side of flexible handle 2 is provided with percussion locking machine
Structure 3, this percussion retaining mechanism 3 coordinates with shackle member 21, when flexible handle 2 turns to forward Guan Bi, fires retaining mechanism
Shackle member 21 is locked by 3, and fixed handle 1 is additionally provided with the unblock for making shackle member 21 separate with percussion retaining mechanism 3
Mechanism 4, this unlocking mechanism 4 is positioned at percussion retaining mechanism 3 front, after being used for determining tissue location, needs to unlock during percussion,
The top of fixed handle 1 is additionally provided with resetting-mechanism 5, is used for closing tissue location undesirable, is not desired to during percussion unlock, convenient
Doctor readjusts make position.
The most as shown in Figures 2 to 5, wherein shackle member 21 is positioned on front side of flexible handle 2 upper end, and this shackle member 21 includes
The main body of bar shaped, this body front end portion extends to side and forms projection, and the front lower surface of this projection is inclined plane, percussion locking
Mechanism 3 includes guide, spring 36 and locking piece, and guide is the gathering sill 35 being opened on fixed handle 1 medial wall,
This gathering sill 35 turns forward, and two medial walls of fixed handle 1 are equipped with a gathering sill 35, strong for strengthening it in this example
Degree, gathering sill 35 is surrounded by the back-shaped reinforcement 39 on fixed handle 1 inwall, and locking piece includes the support member of horizontally set
31 and the percussion release link 32 and the first guide pad 38 arranged that turn forward, the pin of this support member 31 and flexible handle 2
23 is parallel, and percussion release link 32 is provided with the second guide pad (not marking in figure), and this second guide pad is by firing release link
32 sides extend formed, the both ends of support member 31 respectively with the first guide pad 38 and fire release link 32 bottom be connected,
First guide pad 38 and the second guide pad are respectively protruding in two described gathering sills 35；Spring 36 lower end is supported on fixed handle 1
On inwall, spring 36 top abuts with support member 31 bottom, and locking piece can be transported along gathering sill about 35 under spring 36 acts on
Dynamic, the both ends of support member 31 are provided with the clamping joint 33 adapted with shackle member 21, clamping joint 33 is positioned at support member 31
Rear side, towards described shackle member 21, this clamping joint 33 is block, and this clamping joint 33 front upper part offers clamping gap 34,
Clamping joint 33 upper rear end is the inclined plane that lower surface front with projection is corresponding, and when flexible handle 2 rotates forward, projection snaps in card
Connect in gap 34, flexible handle 2 is locked in closure state.
Unlocking mechanism 4 is arranged on fixed handle 1 inwall in percussion retaining mechanism 3 front, and this unlocking mechanism 4 includes stop collar
Cylinder 41, the safety button 42 of cylindricality, back-moving spring 43 and poke rod 45, spacing collar 41 is vertically mounted on fixed handle 1
On inwall, and with flexible handle 2 pin 23 parallel, safety button 42 and back-moving spring 43 are co-axially mounted on stop collar
In cylinder 41, this back-moving spring 43 is enclosed within safety button 42, and poke rod 45 is connected in safety button 42, and presses with insurance
Button 42 is vertical；Laterally having bar shaped limited mouth 44 on spacing collar 41 rear wall, poke rod 45 is arranged in this limited mouth 44,
And can move along limited mouth 44 length direction under back-moving spring 43 acts on, i.e. transverse movement, support member 31 upper surface offers
Two draw-in grooves 37, two draw-in grooves 37 are respectively close to two percussion release links 32, and this draw-in groove 37 upper portion side wall is towards draw-in groove 37 liang
Roll oblique inclined-plane, chamfering shape, poke rod 45 one end is connected with safety button 42, and the other end stretches in draw-in groove 37, limit
Lockmaking stop member moves upward, and when pressing safety button 42, poke rod 45 makes support member 31 drive clamping joint 33 to move downward,
Clamping joint 33 separates with shackle member 21, and flexible handle 2 resets.
Wherein support member 31 is rectangular block shape, and spring 36 is two, is respectively supported at bottom, support member 31 two ends, clamping joint 33
Being two, be connected to support member 31 both ends, shackle member 21 is two, corresponding with two clamping joints 33 respectively, percussion
Release link 32 and clamping joint 33 are one-body molded with support member 31.
Resetting-mechanism 5 includes tooth bar 51, reseting plate 52, reset button 53, extension spring, return pin 54 etc., about tooth bar 51 top
Both sides have been horizontally disposed with raised line 55, and this raised line 55 offers downward opening stopper slot 56, and stopper slot 56 two side is outside
The inclined-plane tilted, percussion release link 32 is strip, and this percussion release link 32 upper surface is arcwall face, in this percussion release link 32
Radius on front side of end is more than the radius of rear side, and the upper end of percussion release link 32 is stretched in this stopper slot 56, this percussion release link 32
Upper surface is corresponding with stopper slot 56 cell wall, and when reset button 53 pulls tooth bar 51 rearward movement, percussion release link 32 is spacing
Moving downward under the squeezing action of groove 56 cell wall, clamping joint 33 separates with shackle member 21, and flexible handle 2 resets.
The present invention additionally provides a kind of anastomat simultaneously, including the anti-error firing safety mechanism of above-mentioned anastomat, often the most also includes
The parts of rule anastomat, do not repeat.
The most specifically introduce the work process of the present invention:
As shown in Figure 6, during original state, doctor carries out the selection of tissue location, and now flexible handle 2 is in open mode,
Percussion release link 32 upper end is against the lower surface of tooth bar 51 raised line 55, and clamping joint 33 and shackle member 21 are in released state；
As shown in Figure 7 and Figure 8, when doctor chooses organization need location, pulling flexible handle 2, flexible handle 2 is with pin
Rotating forward centered by 23, propeller simultaneously advances tooth bar 51, and the shackle member 21 in flexible handle 2 front moves to clamping joint 33
Oblique upper, projection snaps in clamping gap 34 along clamping joint 33 rear ramped surface, simultaneously because tooth bar 51 moves forward, raised line 55
Stopper slot 56 moves above percussion release link 32, and percussion release link 32 is no longer pushed down by raised line 55, at spring 36 active force
Under, whole locking piece all moves up along gathering sill 35 direction, and shackle member 21 is blocked by clamping joint 33, fires release link 32
Upper end is stretched in stopper slot 56, and flexible handle 2 bottom is drawn close to fixed handle 1, closed, and now doctor just can understand that judgement is
Cutting operation can not be carried out, it is necessary to be unlocked and could operate, so that doctor is apparent from which operation proceeded to
Step, it is to avoid maloperation.
As shown in Figure 9 and Figure 10, when doctor thinks that tissue location confirms, and can fire, press safety button 42, stir
Bar 45 moves along limited mouth 44 length direction, and poke rod 45, by extruding draw-in groove 37 sidewall, is slided by draw-in groove 37 upper portion side wall
To percussion release link 32 upper surface of locking piece, making locking piece move downward along spring 36 direction, the boss of shackle member 21 is from card
Discharging in the clamping gap 34 of joint 33, flexible handle 2 is reset to open mode under the active force of torsion spring, now may be used
To carry out percussion operation.After unclamping safety button 42, poke rod 45 moves to draw-in groove 37 under back-moving spring 43 acts on；
As is illustrated by figs. 11 and 12, need to reselect position when doctor thinks, do not prepare percussion time, pull back reset by
Button, tooth bar 51 is moved rearwards by, and stopper slot 56 cell wall extruding percussion release link 32 upper surface, percussion release link 32 upper end is exited
Stopper slot 56, is against raised line 55 lower surface, moves downward owing to percussion release link 32 moves downward drive clamping joint 33, from
And make boss depart from clamping gap 34, it is achieved unlocking, flexible handle 2 resets under the effect of handle torsion spring；Unclamp reset by
After button, tooth bar 51 resets under extension spring effect, and percussion release link 32 resets under spring 36 active force.
Therefore the present invention can be locked after Guan Bi flexible handle 2 for the first time, it is impossible to automatically resets.Now because at handle
In closure state, no matter doctor can understand in terms of visual aspects or practical operation that judgement can not carry out second time and fire, must
Need be unlocked by peripheral operation unlocking mechanism 4 and just can carry out firing for the second time, thus allow doctor be apparent from operation technique and arrive
Which step, it is to avoid doctor's erroneous judgement and mistakenly hit are sent out and caused operative failure, it is ensured that the correctness of operation technique order；Pass through simultaneously
Resetting-mechanism 5, can make doctor select suitably to organize to close and cut, it is to avoid repeatedly Guan Bi and cutting operation, increases
Add patient suffering, cause operative failure.
The principle of above-described embodiment only illustrative invention and effect thereof, not for limiting the present invention, any be familiar with this technology
Personage all above-described embodiment can be modified under the spirit and the scope of the present invention or changes.Therefore, Ju Fansuo
Belong to and technical field has all equivalences that usually intellectual is completed under without departing from disclosed spirit and technological thought
Modify or change, must be contained by the claim of the present invention.
Claims (8)
1. an anti-error firing safety mechanism for anastomat, including fixed handle and flexible handle, it is characterised in that: described flexible handle
Top is provided with shackle member, and the fixed handle on front side of described flexible handle is provided with percussion retaining mechanism, this percussion locking machine
Structure coordinates with described shackle member, and when flexible handle turns to forward Guan Bi, shackle member is locked by described percussion retaining mechanism,
The unlocking mechanism for making shackle member separate it is additionally provided with percussion retaining mechanism on described fixed handle；Described percussion locking machine
Structure includes that guide, spring and locking piece, described locking piece include the support member of horizontally set and hitting of the setting that turns forward
Send out release link and the first guide pad；Described percussion release link is strip, and this percussion release link upper surface is arcwall face, this percussion
Radius on front side of release link upper end is more than the radius of rear side；The clamping joint adapted with shackle member it is provided with on described locking piece,
The poke rod of described tripper is connected with locking piece, and when unlocking, poke rod is stirred locking piece, made clamping joint and shackle member
Separate；Described shackle member is positioned on front side of flexible handle upper end, and this shackle member includes the main body of bar shaped, and this body front end portion is to one
Side extends and forms projection, and the front lower surface of this projection is inclined plane, and described clamping joint is connected to the support member of described locking piece
Rear side, this clamping joint is block, and this clamping joint front portion offers clamping gap, and clamping joint upper rear end is lower end front with projection
The inclined plane that face is corresponding, when described flexible handle rotates forward, described projection snaps in clamping gap, is locked by flexible handle
It is scheduled on closure state.
The anti-error firing safety mechanism of anastomat the most according to claim 1, it is characterised in that: described guide is along the vertical direction
Being inclined on fixed handle, described lower spring end is supported on fixed handle sidewall, under spring top and described locking piece
Portion connects, and described locking piece can move up and down along guide under the action of the spring.
The anti-error firing safety mechanism of anastomat the most according to claim 2, it is characterised in that: described fixed handle is hollow
Housing, described flexible handle is rotatably mounted on fixed handle by pin, and described guide is for being opened in fixed handle
Gathering sill on sidewall, this gathering sill turns forward, and two medial walls of described fixed handle are equipped with a gathering sill；Institute
State support member parallel with the pin of flexible handle, described percussion release link is provided with the second guide pad, the two of described support member
End respectively with the first guide pad and percussion release link bottom be connected, described first guide pad and the second guide pad are respectively protruding into
In two described gathering sills.
The anti-error firing safety mechanism of anastomat the most according to claim 3, it is characterised in that: described unlocking mechanism is arranged on hits
Send out retaining mechanism front fixed handle on, this unlocking mechanism include spacing collar, the safety button of cylindricality, back-moving spring and
Poke rod, described spacing collar is vertically mounted on fixed handle, and with flexible handle pin parallel, described insurance is pressed
Button and back-moving spring are co-axially mounted in spacing collar, and described poke rod is connected in safety button, and hang down with safety button
Directly；
Having bar shaped limited mouth on described spacing collar rear wall vertically, described poke rod is arranged in this limited mouth, and can be multiple
Moving along limited mouth length direction under the spring effect of position, described support member upper surface offers draw-in groove, and this draw-in groove upper portion side wall is
The inclined-plane tilted towards draw-in groove both sides, described poke rod one end is connected with safety button, and the other end stretches in described draw-in groove, limits
Described locking piece moves upward, and when pressing described safety button, described poke rod makes locking piece drive clamping joint to move downward,
Clamping joint separates with shackle member, and described flexible handle resets.
The anti-error firing safety mechanism of anastomat the most according to claim 4, it is characterised in that: described support member is rectangular block shape,
Described draw-in groove is two, is disposed side by side on support member；Described spring is two, is respectively supported at bottom, support member two ends,
Described clamping joint is two, is connected to support member both ends, and described shackle member is two, respectively with two clamping joints pair
Should.
The anti-error firing safety mechanism of anastomat the most according to claim 4, it is characterised in that: described spacing collar, guide
One-body molded with fixed handle, described percussion release link and clamping joint are one-body molded with support member.
The anti-error firing safety mechanism of anastomat the most according to claim 3, it is characterised in that: described fixed handle top also sets
Being equipped with resetting-mechanism, resetting-mechanism includes that tooth bar, reseting plate, reset button, described tooth bar upper level are provided with raised line, should
Offering downward opening stopper slot on raised line, described stopper slot two side is outward-dipping inclined-plane, described percussion release link
Upper end stretch in this stopper slot, this percussion release link upper surface is the curved surface corresponding with stopper slot cell wall, when described reset button
When pulling tooth bar rearward movement, described percussion release link moves downward under the squeezing action of stopper slot cell wall, described clamping joint
Separating with shackle member, flexible handle resets.
8. an anastomat, it is characterised in that: include the anti-error percussion safety of anastomat described in claim 1 to 7 any one
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| EP3900646A4 (en) * | 2018-12-20 | 2022-04-27 | Touchstone International Medical Science Co., Ltd. | Firing mechanism and anastomat |
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Effective date of registration: 20171127 Address after: 400700 Chongqing city Beibei District Road No. 117 No. 56 of the Milky way Patentee after: Chongqing MEIKO Medical Technology Co., Ltd. Address before: 401120 Chongqing City, North New District, Willow Road, No. 2, Mount Huangshan Avenue, Chongqing Institute of science and technology, building B, building, floor, building 12 Patentee before: CHONGQING QMI SURGICAL CO., LTD. |