CN107951522A - Surgical operating instrument - Google Patents

Abstract

The present invention's is related to a kind of surgical operating instrument,Including nail-anvil assembly,The nail bin groupware stent of jaw is formed with the nail-anvil assembly and the driving jaw is opened or the closure drive component of closure,The surgical operating instrument further includes center bearing bracket,The closure drive component includes the closure axis being arranged on the center bearing bracket and the closure nut being threaded on the closure axis,The closure nut includes block portion,The nail bin groupware stent is fixed on the closure nut,Formed with accommodating cavity in the center bearing bracket,The block portion is set in the accommodating cavity,The lead along the longitudinally extension of closed end axis is provided between the accommodating cavity and block portion,The accommodating cavity is with being both provided with the arcuate guide hole coordinated with the lead on block portion,The surgical operating instrument is compared with prior art,Improve closure effect.

Description

Surgical operating instrument

Technical field

The present invention relates to a kind of surgical operating instrument.

Background technology

In general surgery treatment, surgical instruments is the operation tool in medical operating, and stapler is surgical instruments A kind of operation tool for the cutting closure function for being commonly used for completing tissue, it medically uses, substitutes manual suture Equipment, its main operational principle is to carry out detachment to tissue using titanium nail (suturing nail) or coincide, similar to stapler.It is existing Stapler includes center bearing bracket, nail-anvil assembly, nail bin groupware stent and the driving pincers with nail-anvil assembly formation jaw Mouthful open or closure closure drive component, the closure drive component drive nail bin groupware stent relative to nail-anvil assembly movement with Realize the opening or closure of jaw, nail bin groupware stent is except needing to be connected to realize the nail bin groupware with closure drive component Between it is outer relative to nail-anvil assembly movement, generally also need to fit in nail bin groupware stent in the accommodating cavity of center bearing bracket so that Nail bin groupware stent double swerve is limited by the accommodating cavity, in specific embodiments, is provided with nail bin groupware stent The connecting portion being contained in accommodating chamber, the connecting portion are also connected with closure drive component, what connecting portion was extended downwardly with two Extendible flake, Extendible flake is stretched into accommodating cavity and contacted with the cavity wall of accommodating cavity, so that nail bin groupware stent double swerve is limited, But due to being contacted between Extendible flake and cavity wall for face, its guiding accuracy is not high, and then influence closure.

The content of the invention

It is an object of the invention to provide a kind of surgical operating instrument, it can improve match result.

To reach above-mentioned purpose, the present invention provides following technical solution：A kind of surgical operating instrument, including nail-anvil assembly, The nail bin groupware stent of jaw is formed with the nail-anvil assembly and the driving jaw is opened or the closure drive component of closure, The surgical operating instrument further includes center bearing bracket, and the closure drive component includes the closure being arranged on the center bearing bracket Axis and the closure nut being threaded on the closure axis, the closure nut include block portion, the nail bin groupware stent It is fixed on the closure nut, is set in the center bearing bracket formed with accommodating cavity, the block portion in the accommodating cavity, institute State the lead being provided between accommodating cavity and block portion along the longitudinally extension of closed end axis, the accommodating cavity and bulk The arcuate guide hole coordinated with the lead is both provided with portion.

Further, the lead is arranged on the corner of accommodating cavity.

Further, projection is further included from the bulk formed with latch segment, the closure nut on the nail-anvil assembly Portion has extended to form forward lock sheet, formed with the locking hole coordinated with the latch segment on the lock sheet.

Further, the lock sheet is that simultaneously downward bending extends to form forward from the block portion, and the locking hole is The notch extended to form by lock sheet bending.

To reach above-mentioned purpose, the present invention provides following technical solution：A kind of surgical operating instrument, including nail-anvil assembly, The nail bin groupware stent of jaw is formed with the nail-anvil assembly and the driving jaw is opened or the closure drive component of closure, Formed with accommodating cavity in the center bearing bracket, be provided with lead between the connecting portion and accommodating cavity, and the accommodating cavity with The arcuate guide hole coordinated with the lead is provided with connecting portion.

Further, the nail bin groupware stent include to install nail bin groupware frame body portion and from the frame body portion to The connecting portion extended to form afterwards, the closure drive component include closure axis, the connecting portion activity peace of the nail bin groupware stent On the closure axis, and the nail bin groupware stent moves on the closure axis along the longitudinally of the closure axis； Thrust is applied to the frame body portion of the nail bin groupware stent in the nail-anvil assembly, the connecting portion of the nail bin groupware stent can phase The closure drive component is swung in the first direction, the first direction acts on the nail bin groupware for the nail anvil stent The direction of power on stent.

Further, the closure drive component further includes the closure nut being arranged on the closure axis, the closure Nut is connected with the closure axle thread, and the connecting pin has mounting hole, and the closure nut is inserted into the mounting hole, It is clearance fit between the closure nut and mounting hole.

Further, the frame body portion has the front end set away from connecting portion, and the front end is arranged to be less than institute State connecting portion.

Further, trigger shaft is provided with the nail-anvil assembly, is provided with the trigger shaft and the trigger shaft spiral shell The cutting assembly that line is connected and can moved on the trigger shaft, the surgical operating instrument further include trigger switch and triggering institute The triggering application member of trigger switch is stated, the side of the trigger switch is provided with fixed plate, first is provided with the fixed plate Elastic component, the triggering application member are arranged on the side of first elastic component；The cutting assembly supports triggering application member, institute When stating cutting assembly percussion reset, the cutting assembly promotes the triggering application member mobile towards trigger switch and triggers triggering and opens Close；When the cutting assembly fires, first elastic component driving triggering application member is away from trigger switch and close to cutting Cut component.

Further, slipping block, the slipping block and trigger shaft clearance fit, the cutting are arranged with the trigger shaft Component supports the triggering application member by the slipping block, and the side of the slipping block is provided with the driving sliding component court and cuts Cut the second elastic component of the direction movement of component.

The beneficial effects of the present invention are：The nail bin groupware stent of the surgical operating instrument of the present invention passes through with center bearing bracket The cooperation of lead and pilot hole so that the movement of nail bin groupware stent is steady, and mobile accuracy becomes higher, and compared with prior art, changes Kind match result.

Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate attached drawing describe in detail as after.

Brief description of the drawings

Fig. 1 is the structure diagram of the surgical operating instrument shown in the embodiment of the present invention one；

Fig. 2 is the exploded view of the surgical operating instrument shown in Fig. 1；

Fig. 3 is Fig. 1 end effectors, closes axis and rigidly fix the exploded view of frame；

Fig. 4 is nail-anvil assembly, trigger shaft, the exploded view of cutting assembly in Fig. 1；

Fig. 5 is the part-structure sectional view after nail-anvil assembly in Fig. 1, trigger shaft, cutting assembly assembling；

Fig. 6 is the sectional view of the part-structure after another nail-anvil assembly, trigger shaft, cutting assembly assembling；

Fig. 7 is the assembling figure that nut and blade are fired in Fig. 1；

Fig. 8 is the exploded view of the percussion nut and blade shown in Fig. 9；

Fig. 9 be trigger shaft in Fig. 1, percussion nut and after give up the throne the exploded view of positioning and recognizing device；

Figure 10 is the exploded view of nail bin groupware and the first identification switch in Fig. 1；

Figure 11 is the sectional view of nail bin groupware in Figure 10；

Figure 12 is the assembling figure between nail bin groupware and housing in Fig. 1；

Figure 13 is the enlarged drawing of circle B in Fig. 5；

Figure 14 a to Figure 14 c be three kinds to realize two kinds closure height end effector optical cable；

Figure 15 is the exploded view of the part-structure of the surgical operating instrument shown in another embodiment of the present invention；

Figure 16 is that surgical operating instrument end effector, nail bin groupware shown in another embodiment of the present invention are isostructural Exploded view.

Embodiment

With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.Close following described up, down, left, right, before and after positions System is using Fig. 1 as benchmark with reference to scheming, and arrow a-a directions are above-below direction in Fig. 1, and arrow b-b directions are anteroposterior direction, arrow C-c directions are left and right directions.

Fig. 1 and Fig. 2 are referred to, the surgical operating instrument shown in one embodiment of the invention (calls kiss in the following text for electric drive stapler Clutch), it is used to suturing and cutting tissue.The stapler includes the body of a gun and the nail bin groupware 100 on the body of a gun. The body of a gun include handle portion (not shown) and work first 10, in the present embodiment, the handle portion be it is reusable can Electric handle is sterilized, fast connector and signal transmission port is internally provided with, is additionally provided with to provide electricity in the handle portion The replaceable battery group of power, the power input device (not shown) to input power is provided with the handle portion, and the power is defeated Entering device includes motor.The connection mode of the motor and battery is design conventional in the prior art, therefore is not carried out herein detailed Description.The action such as closure, opening and percussion of work first 10 is driven by the handle portion.

The work first 10 includes housing 1, center bearing bracket 2, closure transmission component (non-label), percussion transmission component (not Label), switching part and end effector 3.The center bearing bracket 2 is fixed in the housing 1, the closure transmission component, Percussion transmission component is enclosed in the housing 1, and the closure transmission component, one end of percussion runner assembly pass through power transmission group Part (not shown) is connected with motor, and the closure transmission component, the other end of percussion transmission component connect with end effector 3 respectively Connect and supported by center bearing bracket 2.The closure transmission component, percussion transmission component are connected with handle portion with by the power of handle portion Be transmitted to end effector 3, thus by closure transmission component, percussion transmission component drive the end effector 3 realize closure, Percussion, percussion are resetted and opened, and the closure transmission component, percussion transmission component are the conventional design in this area, therefore herein not It is described in greater detail.The switching part includes changer lever 12 and the switching push button 11 being connected with the changer lever 12.It is described Changer lever 12 by the power transmission of power input device to closure drive component or leads to optionally through closure transmission component Percussion transmission component is crossed by the power transmission of power input device to trigger shaft, the switching push button 11 is on housing.By dialling Dynamic switching push button 11 drives the movement on closure transmission component, percussion transmission component of changer lever 12 closing and firing two to realize Switch between kind state, the changer lever 12 and closure transmission component, the connection mode of percussion transmission component are normal in this area Rule design, therefore be not described in detail herein.

Fig. 1, Fig. 3 and Fig. 4 are referred to, the end effector 3 includes nail-anvil assembly 31, relatively described nail-anvil assembly 31 moves It is dynamic to complete nail bin groupware stent 32 that the end effector 3 closes or opens, drive the nail bin groupware stent 32 towards nail 31 direction of anvil assembly moves so that the closure drive component and be arranged on nail-anvil assembly that the end effector 3 closes or open Trigger shaft 37 in 31, the cutting assembly 33 being arranged on the trigger shaft 37.The closure of end effector 3 is opened by nail anvil Component 31 and nail bin groupware stent 32 are completed, which forms jaw, the closure of the jaw with nail bin groupware stent 32 The as closure of end effector 3, the opening of the jaw are the opening of end effector 3.The nail bin groupware 100 is installed on On the nail bin groupware stent 32.

Fig. 3 to Fig. 6 is referred to, the nail-anvil assembly 31 includes nail anvil stent 311, is arranged on the nail anvil stent 311 The transparent shield 313 and be located on the nail anvil stent 311 that nail anvil on end is first 312, is arranged on institute's nail anvil stent 311 Resist-nailed seat 314.The nail anvil stent 311 includes the bottom wall 3114 being oppositely arranged and from the left and right sides phase of the bottom wall 3114 The side wall 3112 extended to form.The side wall 3112 and bottom wall 3114, which enclose, to be set to form containing cavities (non-label).The nail anvil stent 311 front end is embedded with casey 3113.The resist-nailed seat 314 is fixed on the bottom wall 3114, and is set relatively with bottom wall 3114 Put.Longitudinally (direction and the longitudinally phase of work first 10 along the nail-anvil assembly 31 are offered on the bottom wall 3114 Together, it is a-a directions in Fig. 1) observation panel 315 of the elongated shape of extension, the transparent shield 313 is covered in the observation panel 315 On, in the present embodiment, it is provided with the bottom wall 3114 to play the scale zone of mark action, the scale zone is located at The side of the observation panel 315.The nail anvil first 312 is removably plugged on the front end of the nail anvil stent 311, by by nail anvil First 312 are removably plugged on the front end of the nail anvil stent 311, in order to replace the nail anvil first 312, facilitate the end effector 3 maintenance, improves the service life of the end effector 3.In the present embodiment, the nail anvil first 312 blocks with nail anvil stent 311 Button connection, specifically：The nail anvil first 312 includes head 316 and the hook part 317 extended rearwardly to form from the head 316, The buckle slot 318 coordinated with the hook part 317 is provided with the nail anvil stent 311, which is formed in bottom wall On 3114.In the present embodiment, incorporated by reference to Fig. 5 and Fig. 6, the quantity of the hook part 317 is one, and the hook part 317 wraps Include the cantilever 3171 extended rearwardly to form from the head 316 and the short transverse from the cantilever 3171 along end effector 3 The square fixture block 3172 that upward projection is formed.In other embodiments, Fig. 6 is referred to, the quantity of the hook part 317 ' can Think two, two hook parts 317 are disposed opposite to each other along the central axes of the end effector 3, each hook part 317 ' have the cantilever 3171 ' extended rearwardly to form from the head 316 ' and the round end formed from the projection of cantilever 3171 ' Type fixture block 3172 ', is recessed the card coordinated with the brachycephalic fixture block 3172 ' in this embodiment, in two side walls 3112 ' Catching groove 318 '.

Fig. 3 is referred to, the nail bin groupware stent 32 is cantilever design, and the nail bin groupware stent 32 is included to fixation The frame body portion 321 of nail bin groupware 100 and the connecting portion 322 extended rearwardly to form from the frame body portion 321.The frame body portion 321 has There is front end 323, the front end 323 of the nail bin groupware stent 32 is vacantly set, which is set away from connecting portion 322. The connecting portion 322 of the nail bin groupware stent 32 is movably arranged on the closure drive component, right in the nail-anvil assembly 31 The frame body portion 321 of the nail bin groupware stent 32 applies thrust, and the connecting portion 322 of the nail bin groupware stent 32 can be relatively described Closing drive component, (arrow d directions in Fig. 3) is swung in the first direction, and the first direction is the nail anvil stent 311 Act on the direction of the power on the nail bin groupware stent 32.It is provided with the frame body portion 321 and matches somebody with somebody with the nail bin groupware 100 The fixing slot (non-label) of conjunction.The connecting portion 322 includes connection sheet 324 and from left and right sides of the connection sheet 324 to downward Stretch the Extendible flake 325 to be formed.Mounting hole 326 is offered in the connection sheet 324, the mounting hole 326 is including axis hole 327 and certainly The both ends of the axis hole 327 outwards tear the escape groove 328 of formation.

Fig. 2 and Fig. 3 are referred to, the closure drive component includes 34 He of closure axis being installed on the center bearing bracket 2 The closure nut 35 being arranged on the closure axis 34.Taper transmission is provided between the closure axis 34 and closure transmission component Gear set, the taper driving gear set include the first bevel gear 41 being arranged on the closure transmission component and are arranged on institute The second bevel gear 42 in the support of center bearing bracket 2 is stated, one end of the closure axis 34 is inserted into the second bevel gear 42 and leads to Cross the connection of flat structure.The closure axis 34 is used with the closure nut 35 being disposed thereon and is threadedly coupled, the closure nut 35 The rotary motion for closing axis 34 is converted into linear motion so that the closure nut 35 can close on edge on the closure axis 34 The longitudinally of sympodium 34 moves linearly.The closure nut 35 is inserted into the mounting hole 326, the closure nut 35 It is clearance fit between mounting hole 326, the closure nut 35 drives the nail bin groupware stent 32 in the closure axis 34 On along it is described closure axis 34 longitudinally move.It is described closure nut 35 include pressure section 351, from the pressure section 351 to Under the axle portion 352 that extends to form and the lateral convex block 353 formed from the 352 outside projection of axle portion, the axle portion 352 be inserted into It is clearance fit between the mounting portion and axis hole 327 so that the axle portion 352 coordinates with axis hole 327 in axis hole 327.Closure When nut 35 is assembled with nail bin groupware stent 32, lateral convex block 353 is first aligned with escape groove 328, so that the closure nut 35 sets are set on nail bin groupware stent 32, then, closure nut 35 are rotated so that the lateral convex block 353 and escape groove 328 Dislocation, at this time, the connecting portion 322 of nail bin groupware 100 are clamped between pressure section 351 and lateral convex block 353, to prevent non-magnetic shim storehouse group Part stent 32 is separated with closure nut 35, simultaneously as the nail bin groupware stent 32 is again socket, axle portion with closure nut 35 352 be polished rod, mounting hole 326 is unthreaded hole, therefore opposite can be done between nail bin groupware stent 32 and closure nut 35 in slight amplitude Swing.In the present embodiment, the relatively closed nut 35 of nail bin groupware stent 32 rotates in order to prevent, the nail bin groupware stent Fixing piece 36 is fixed with 32, the card slot 361 coordinated with the convex block 353, the convex block 353 are provided with the fixing piece 36 In in the card slot 361, the fixing piece 36 is located at the lower section of the connecting portion 322, in the present embodiment, the fixing piece 36 with Nail bin groupware stent 32 welds.The fixing piece 36 is accommodated in nail bin groupware stent 32.The center bearing bracket 2 has accommodating second Bevel gear 42, the accommodating cavity 21 for closing axis 34, the side of left and right two of the accommodating cavity 21 is relatively set with cavity wall 211, the company Socket part 322 is contained in the accommodating cavity 21, and the connecting portion 322 is fitted in the accommodating cavity 21 and the connecting portion 322 can Moved in the accommodating cavity 21 along the longitudinally of closure axis 34.Two Extendible flakes 325 of the connecting portion 322 correspond to respectively Two cavity walls 211 are set, and Extendible flake 325 is bonded with cavity wall 211 to limit the nail bin groupware stent 32 in nail bin groupware stent 32 Left and right directions rock.In other embodiments, in order to mention mobile accuracy, between the connecting portion 322 and accommodating cavity 21 Lead is provided with, and the arcuate guide hole coordinated with the lead is provided with accommodating cavity 21 and connecting portion 322, so as to evade Face contact, improves mobile accuracy.The arcuate guide hole is arranged on Extendible flake 325, really, can be not provided with Extendible flake 325, then the arcuate guide hole be formed directly into connection sheet 324.

Pre-bending shrapnel 37 is provided with the nail bin groupware stent 32, the pre-bending shrapnel 37 is clamped in nail bin groupware stent Between 32 and housing 1, the pre-bending shrapnel 37 includes positioned at the first sheet body portion 371 of the top of connection sheet 324, is arranged on institute State the second sheet body portion 372 of the top of frame body portion 321 and the folding part 373 formed be folded down from the second sheet body portion 372, The folding part 373 is located at the lower section in the second sheet body portion 372, and the folding part 373 is set close to connection sheet 324, the folding part 373 support frame body portion 321.There is folding line between first sheet body portion, the 371 and second sheet body portion 372.By in nail bin groupware Pre-bending shrapnel 37 is set both to have prevented to produce rigidity punching between nail bin groupware stent 32 and housing 1 between stent 32 and housing 1 Hit, and reduce the beat produced in the closure of end effector 3 and opening procedure, be conducive to obtain preferably into nail form.

3 closing course of end effector is as follows：When closure transmission component drives closure axis 34 by taper travelling gear When being rotated along the first direction of rotation (first direction of rotation can be clockwise), the closure nut 35 is on closure axis 34 Move down, at this time, closure nut 35 drives direction movement of the nail bin groupware stent 32 towards nail-anvil assembly 31 until the end is held Row device 3 closes., generally will nail in order to ensure the match result of end effector 3 since nail bin groupware stent 32 is cantilever design The front end 323 of storehouse assembly support 32 is arranged to be less than connecting portion 322, and the purpose of the design is：If front end 323 is arranged to Concordant with connecting portion 322, then during end effector 3 closes, the front end of nail bin groupware 100 is (in nail bin groupware 100 Positioned at the part of 32 front end 323 of nail bin groupware stent) elder generation is contacted with the tissue for being sewn and cutting, at this time, which holds Row device 3 is also closure completely, if starting firing action at this time, match result is bad.Therefore, the nail bin groupware stent 32 is necessary To be moved again towards the direction of nail-anvil assembly 31, to realize the complete closure of jaw.During this, before nail bin groupware stent 32 Put end 323 and the front end for being subject to nail bin groupware 100 be applied to the structural relative to force that is sewn and cut and upward micro- lift, And then cause the overall slight oscillatory upward in the first direction of the nail bin groupware stent 32, since nail bin groupware 100 is movably arranged on Close nut 35 on, nail bin groupware stent 32 can relatively closed nut 35 swing in the first direction, therefore, connecting portion 322 is stress Weak part adds stress weak part by the way that front end 323 to be arranged to the structure type less than connecting portion 322 By force, 32 bending of nail bin groupware stent can be avoided, reduces the fatigue damage of nail bin groupware 100, that improves nail bin groupware 100 uses the longevity Life.

For the ease of the fixation closure axis 34,34 one end of the closure axis is fixed on the housing 1, the other end is solid It is scheduled on center bearing bracket 2.In the present embodiment, the closure axis 34 is fixed on the housing 1 by rigid support 51.It is described The fixing groove (not shown) docked with the closure axis, in the present embodiment, the rigidity are recessed on rigid support 51 Bearing 52 is provided between stent 51 and closure axis 34, the bearing 52 is arranged in the fixing groove.The rigid support 51 The adjutage 512 to be formed is upwardly extended including bottom plate 511 and from the bottom plate 511, the adjutage 512 is fixed at the center On stent 2, the fixing groove is arranged on the bottom plate 511.Due to the closure axis 34 be fixed on by rigid support 51 it is described On housing 1, so as to solve in the prior art since closure axis 34 is directly anchored to cause the damage to housing 1 on housing 1 With closure axis 34 itself along axis offset the problem of, help to improve the service life of housing 1, improve the accurate of closure Property.

Incorporated by reference to Fig. 4 and Fig. 8, the cutting assembly 33 includes the percussion nut 331 being threadedly coupled with the trigger shaft 37 With the blade 332 being arranged on the percussion nut 331.The extending direction of the trigger shaft 37 prolongs with the lengthwise of nail-anvil assembly 31 Direction is stretched, the blade 332 has blade face and the knife spine (non-label) being disposed opposite to each other with the blade face (non-label), described The interior concane gap 333 extended from the knife spine towards the blade face direction is provided with knife spine, since the blade face has indent Notch, so that blade 332 forms buffering backward when cutting, helps to improve the service life of blade 332.It is described Blade 332 can be integrally formed with percussion nut 331.In the present embodiment, the blade 332 is set with percussion 331 split of nut Put, which is fixed on percussion nut 331, can be by welding or the company of riveting between blade 332 and percussion nut 331 Connect or pass through pin connection.The percussion nut 331 is located in the containing cavities of nail bin stent 311, and the percussion nut 331 exposes In the observation panel 315, by the observation panel 315 it is observed that the position of percussion nut 331, fires and hit so as to understand The real time position of fat nut 331.In order to intuitively recognize the position of percussion nut 331, the percussion nut 331 and nail anvil group There are aberration between part 31, transparent shield 313.

Incorporated by reference to Fig. 1 and Fig. 2, electric control part is provided with the body of a gun, the electric control part identifies in place including withdrawing Device, triggering inductive switch 83 and closure level identification device.

Fig. 2 and Fig. 9 are referred to, identification device includes the trigger switch 81 being arranged on the housing 1 to the withdrawing in place With triggering application member 82, which can be optoelectronic switch, and the triggering application member 82 is pilot pin, when the positioning After pin 82 is inserted into optoelectronic switch, which is triggered, then the electric control part of the surgical operating instrument is fired Nut 331 is retracted into the information in home position, which can be informed behaviour by electric control part by way of acoustic control or photoelectricity Author.The side of the trigger switch 81 is provided with fixed plate 14, which is fixed on housing 1, the fixed plate 14 On be provided with the first elastic component 15.The pilot pin 82 is arranged on the side of first elastic component 15.The percussion nut 331 Pilot pin 82 is supported, when percussion nut 331 percussion resets, the percussion nut 331 promotes the pilot pin 82 towards triggering Switch 81 moves and triggers the trigger switch 81；When the percussion nut 331 fires, first elastic component 15 drives described Pilot pin 82 is away from trigger switch 81 and close to cutting assembly 33.When specifically used, first elastic component 15 is described fixed Apply the first power on the pin 82 of position, which separates pilot pin 82 with trigger switch 81 so that the trigger switch 81 does not trigger, It is described percussion nut 331 apply the second power in pilot pin 82, this second push dynamic pilot pin 82 towards 81 direction of trigger switch move Dynamic to trigger the trigger switch 81, second power is more than the first power, and percussion nut 331 has been defined on the trigger shaft 37 not The first firing position (33 position of percussion nut is realized in Fig. 4) during percussion, when percussion nut 331 is positioned at the first percussion position To put, the percussion nut 331 applies the second power to pilot pin 82, when the percussion nut 331 is not in first firing position, Then second power is cancelled from the pilot pin 82, and described first pushes dynamic pilot pin 82 separates with trigger switch 81.At this In embodiment, which is the spring being set in the pilot pin 82, is provided with and compresses in the pilot pin 82 First elastic component 15 compresses ring 821.Slipping block 16 is arranged with the trigger shaft 37, between the slipping block 16 and trigger shaft 37 Gap coordinates, and the percussion nut 331 supports the pilot pin 82 by the slipping block 16, and the side of the slipping block 16 is set There is the second elastic component 17 for driving the slipping block 16 towards the direction movement of percussion nut 331, specifically：The trigger shaft 37 wraps Include and the thread segment 371 of percussion 331 thread fitting of nut and the polished rod portion extended from the thread segment 371 along longitudinally 372, slipping block 16 is arranged in the polished rod portion 372.The percussion nut 331 supports slipping block 16 and pushes away the slipping block 16 From the first firing position, the percussion nut 331, the second elastic component 17 are oppositely arranged on the both sides of slipping block 16.Second bullet Property part 17 is spring.By set the withdrawing in place identification device can the surgical operating instrument can be by automatically controlled mode Know whether the percussion nut 331 retreats in place, compared with prior art, can evade and repeatedly fire retrogressing in the surgical operation When percussion nut 331 retreat the problem of not in place, without by calculate driving motor the number of turns i.e. can be achieved retreat positioning, help In the quality for improving operation.

Fig. 1, Fig. 2, Figure 10 are referred to Figure 13, the nail bin groupware 100 includes warehouse 91, is arranged in the warehouse 91 Some suturing nails (not shown), the relatively described warehouse 91 of the driving suturing nail move nail-pushing part (not shown), driving institute State the relatively described warehouse 91 of the nail-pushing part actuator 92 moved, the bracket 93 fixed on the warehouse 91, be arranged on the storehouse Shield top plate 90 on body 91, the sliding trigger member 99 being arranged in the warehouse 91.Triggering inductive switch 83 touches to trigger this Send out inductive switch 83.The staple cavity 94 of some storage suturing nails is provided with the warehouse 91, the warehouse 91 includes group Contact platform 95 and warehouse side wall 96 are knitted, the staple cavity 94 contacts platform 95 through the tissue.The sliding trigger member 99 It is arranged in warehouse 91, and the sliding trigger member 99 is promoted by the actuator 92 and position is occurred in the warehouse 91 and is become Change.It is provided with to store the slid chamber 97 of the sliding trigger member 99 in the warehouse 91, which can be Moved in the slid chamber 97 and cause 99 change in location of sliding trigger member, the sliding trigger member 99 is pushed away by actuator 92 It is moved to move in the slid chamber 97.In the present embodiment, general configuration and the actuating of the prior art of the actuator 92 Part is identical, and difference is：Actuator 92 in the present embodiment is equipped with to drive pushing for the sliding trigger member 99 movement Portion 921.In order to make the compact-sized of the pushing portion 921, recess 922 is offered on the actuator 92, which is located at The rear of the recess 922 is to form the rear wall of recess 922.The sliding trigger member 99 is installed in the recess 922.Described First position and the second place have been defined in warehouse 91, and (in figure four, position where the sliding trigger member 99 of solid line is the One position, 99 position of sliding trigger member of dotted line is the second place), the actuator 92 promotes the sliding trigger member 99 The second place is moved to from the first position.The triggering inductive switch 83 is by positioned at by the cunning on first position Trigger member 99 is moved to trigger.When the actuator 92 promotes sliding trigger member 99 to leave first position, the sliding trigger member 99 is de- The second place is entered to from actuator 92, at this time, sliding trigger member 99 and triggering inductive switch on the second place 83 dislocation, the sliding trigger member 99 on the second place can not trigger the triggering inductive switch 83.In this embodiment, the triggering Inductive switch 83 is located on housing 1.The bottom of the slid chamber 97 has the conduit 971 of outward-dipping setting, and the sliding is touched Outbox 99 is located in the conduit 971 and is moved along the direction of the conduit 971.The 3rd elasticity is additionally provided with the warehouse 91 Part 98, the actuator 92 promotes the sliding trigger member 99 to be moved to the second place from the first position, when described Sliding trigger member 99 is moved to the second place, and the 3rd elastic component 98 is formed with sliding trigger member 99 interferes with by the sliding Trigger member 99 is maintained at the second place.3rd elastic component 98 can be shrapnel.In the present embodiment, when sliding triggers For part 99 at first position, shrapnel 98 supports the warehouse side wall 96 of sliding trigger member 99 to prevent the sliding trigger member 99 from recess Detached in 922, when the sliding trigger member 99 is moved to the second place under the drive of actuator 92, shrapnel 98 will occur Deformation, 2 are moved to from 1 in Figure 13, and shrapnel 98 is supported at this time touches in the rear of sliding trigger member 99, shrapnel 98 with sliding Interference is formed between outbox 99 so that the sliding trigger member 99 is fixed on the second place.For the ease of sensing, in nail bin Sensing window (non-label), specific the sensing window observation side wall 3112 and bracket 93, when the cunning are offered on component 100 Move trigger member 99 and be located at the first position, the sensing window is by the sliding trigger member 99 exposed to outer.In the present embodiment In, shrapnel 98 is formed on bracket 93.When specifically used, the triggering inductive switch 83 be Hall switch, and the sliding is tactile Outbox 99 is to trigger the magnet of the Hall switch；Alternatively, the triggering inductive switch 83 is reflection-type optoelectronic switch, institute It is to trigger the reflecting element of the reflection-type optoelectronic switch to state sliding trigger member 99.In specific implementation, due in warehouse 91 Inside it is provided with and is promoted by the actuator 92 and the sliding trigger member 99 of change in location is occurred in the warehouse 91, so as to Whether be previously used according to the position judgment nail bin groupware 100 of sliding trigger member 99, and surgical operating instrument in use, due to Electric control part is provided with the trigger member triggered by the sliding trigger member 99, so as to be by automatically controlled identification nail bin groupware 100 It is no to be fired, and then avoid medical unexpected.

Figure 14 a are referred to, which is included along the moving direction of 100 stent 32 of nail bin groupware Set and to sense the first sensing device 85 and the second sensing device 86 of 100 stent 32 of nail bin groupware；In the pincers On the closing direction of mouth, the closure that 85 and second sensing device 86 of the first sensing device corresponds to jaw is highly arranged on difference Height on.First sensing device, 85 and second sensing device 86 senses the Extendible flake 325, which can be set On center bearing bracket 2.First sensing device, 85 and second sensing device, the 86 opposite nail bin groupware stent 32 is arranged on nail bin The same side of assembly support 32.Figure 14 b are referred to, in other embodiments, first sensing device 85 and second sensing dress The both sides of nail bin groupware stent 32 can also be arranged on respect to nail bin groupware stent 32 by putting 86.In Figure 14 a and Figure 14 b, first 85 and second sensing device 86 of sensing device is optoelectronic switch, when end effector 3 closes, on different height position Optoelectronic switch be extended piece 325 respectively and block, to identify the two of end effector 3 kinds of different closures height, complete automatically controlled Feed back the closure height of end effector 3.Really, first sensing device, the second sensing device can be Hall switch, this When, it need to be set on the nail-anvil assembly to trigger the magnet of the first sensing device, the second sensing device.

In other embodiments, when nail-anvil assembly 31 is moving member, closure drive component drives the nail-anvil assembly 31 move so that the jaw closure towards 32 direction of nail bin groupware stent or open, at this time, the first sensing device 85 and second Sensing device 86 is set and to sense the nail-anvil assembly 31 along the moving direction of the nail-anvil assembly 31；In the jaw Closing direction on, 85 and second sensing device 86 of the first sensing device correspond to jaw closure height be arranged on it is different In height.First sensing device 85, the second sensing device 86 can also be optoelectronic switch.Likewise, the first sensing dress It can also be Hall switch to put the 85, second sensing device 86, so need to then be set on the nail-anvil assembly 31 to trigger The magnet of one sensing device 85, the second sensing device 86.The quantity of above-mentioned sensing device can also set two according to the actual requirements More than a.

In addition, Figure 14 c are referred to, the closure level identification device can also be to be arranged on the nail bin groupware branch An optoelectronic switch on the moving direction of frame 32, the perforate coordinated with the optoelectronic switch is offered on the Extendible flake 325, Since the optoelectronic switch is blocked or penetrating, so as to there is the optoelectronic switch to obtain two kinds of different working statuses, to identify end Two kinds of different closure height of portion's actuator 3.In the present embodiment, lengthwise of the nail bin groupware stent 32 along the closure axis 34 Direction translates.The embodiment is also change to：One optoelectronic switch is arranged on the moving direction of the nail-anvil assembly 31 On, the nail-anvil assembly 31 has the Extendible flake 325 towards the nail bin groupware stent 32 extension, is opened up on the Extendible flake 325 There is the perforate 329 coordinated with the optoelectronic switch.

Above-mentioned nail bin groupware identification switch two is by the setting on the moving direction of storehouse assembly support and described to sense The two or more sensing devices of nail bin groupware stent 32, alternatively, by being set on the moving direction of the nail-anvil assembly 31 Put and to sense the two or more sensing devices of the nail-anvil assembly 31, alternatively, in the nail bin groupware stent 32 or One optoelectronic switch is set on the moving direction of nail-anvil assembly 31, then in corresponding nail-anvil assembly 31 or nail bin groupware stent 32 The perforate 329 that upper setting coordinates with the optoelectronic switch, so that identify two kinds of different closure height of end effector 3, in this way, The tissue of different-thickness can be only sutured with a kind of surgical operating instrument, applicability is wide.

Incorporated by reference to Figure 15 and Figure 16, the stapler shown in another embodiment of the present invention and the stapler knot shown in embodiment one Structure is roughly the same, but has following three important difference point：First, closure transmission component, percussion transmission component are formed into all mold changings Block, two, the structure of end effector, three, the structure of locking nut and center bearing bracket 2 '.A-b box is provided with the housing 1 ' 20 ', closure transmission component, percussion transmission component and the changer lever 12 ' are arranged in the a-b box 20 ', the a-b box The connection opening (non-label) stretched out for the changer lever 12 ' to be connected with switching push button 11 ' is offered on 20 '.By that will close Conjunction transmission component, percussion transmission component are arranged in a-b box, so as to fulfill modular construction, easy to assemble.Hold the end Row device includes nail-anvil assembly, relative to the nail-anvil assembly movement to complete the nail bin groupware that the end effector is closed or opened Stent 32 ', the driving nail bin groupware stent 32 ' move so that the end effector closure towards nail-anvil assembly direction or beat The closure drive component opened and it is arranged on cutting assembly on the nail-anvil assembly.The structure and reality of the cutting assembly, nail-anvil assembly The structure applied in example one is identical, repeats no more, and the nail anvil stent 311 ' includes the latch segment that projection is formed on side wall 3112 ' 318’.The nail bin groupware stent 32 ' includes top plate portion 321 ' and is downwardly extending from the left and right sides of top plate portion 321 ' Adjutage 322 ', the top plate portion 321 ' and adjutage 322 ' surround to install the nail bin chamber (diagram) of nail bin groupware 100, institute The one end for stating top plate portion 321 ' offers axis hole 327 '.The closure drive component includes being arranged on the center bearing bracket 2 ' Closure axis 34 ' and the closure nut 35 ' being threadedly coupled with the closure axis 34 '.The closure drive component is passed again by taper Moving gear group is connected with closure transmission component.It is described closure nut 35 ' include block portion 351 ', from the block portion 351 ' forward Extend to form lock sheet 352 ', formed with the locking hole 353 ' coordinated with the latch segment 318 ' on the lock sheet 352 ', In the present embodiment, the lock sheet 352 ' is that simultaneously downward bending extends to form forward from the block portion 351 ', the locking hole 353 ' the notch to be extended to form by the bending of lock sheet 352 '.It has been formed through on the block portion 351 ' and the closure axis The threaded hole 354 ' of 34 ' thread fittings, the closure axis 34 ' is through the threaded hole 354 ' and is inserted into nail bin groupware stent 32 ' Axis hole 327 ' in, it is fixed that nail bin groupware stent 32 ' with closure axis 34 ' passes through bearing 52 '.Described in the block portion 351 ' is set In accommodating cavity 21 ', leading along the closing direction extension of end effector is provided between the accommodating cavity 21 ' and block portion 351 ' To column (not shown), the accommodating cavity 21 ' is with being both provided with the arcuate guide hole coordinated with the lead on block portion 351 ' 22 ', in the present embodiment, the lead is arranged on the corner of accommodating cavity 21 '.By the way that nail bin groupware stent 32 ' is arranged on Close on nut 35 ', and closure nut 35 ' is arranged in accommodating cavity 21 ', by being set in block portion 351 ', accommodating cavity 21 ' The arcuate guide hole 22 ' coordinated with the lead is both provided with lead and accommodating cavity 21 ' and block portion 351 ', so as to Swung along the longitudinal direction with limiting nail bin groupware stent, compared with prior art, the movement of nail bin groupware stent 32 ' is more steady, Improve the match result of end effector.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.

Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of surgical operating instrument, including nail-anvil assembly and the nail-anvil assembly form nail bin groupware stent and the drive of jaw The dynamic jaw is opened or the closure drive component of closure, it is characterised in that the surgical operating instrument further includes center branch Frame, the closure drive component include the closure axis being arranged on the center bearing bracket and are threaded on the closure axis Nut is closed, the closure nut includes block portion, and the nail bin groupware stent is fixed on the closure nut, the center Set in stent formed with accommodating cavity, the block portion in the accommodating cavity, edge is provided between the accommodating cavity and block portion The lead of the longitudinally extension of closed end axis, the accommodating cavity coordinate with being both provided with block portion with the lead Arcuate guide hole.

2. surgical operating instrument as claimed in claim 1, it is characterised in that the lead is arranged on the corner of accommodating cavity.

3. surgical operating instrument as claimed in claim 2, it is characterised in that projection is formed with locking on the nail-anvil assembly Block, the closure nut, which is further included from the block portion, has extended to form forward lock sheet, on the lock sheet formed with institute State the locking hole of latch segment cooperation.

4. surgical operating instrument as claimed in claim 3, it is characterised in that the lock sheet be from the block portion forward simultaneously Downward bending extends to form, and the locking hole is the notch extended to form by lock sheet bending.

5. a kind of surgical operating instrument, including nail-anvil assembly and the nail-anvil assembly form nail bin groupware stent and the drive of jaw The dynamic jaw is opened or the closure drive component of closure, it is characterised in that formed with accommodating cavity, institute in the center bearing bracket State and lead is provided between connecting portion and accommodating cavity, and the accommodating cavity is with being provided with what is coordinated with the lead on connecting portion Arcuate guide hole.

6. surgical operating instrument as claimed in claim 5, it is characterised in that the nail bin groupware stent is included to pilot nail The frame body portion of storehouse component and the connecting portion extended rearwardly to form from the frame body portion, the closure drive component include closure axis, The connecting portion of the nail bin groupware stent is movably arranged on the closure axis, and the nail bin groupware stent is in the closure axis On along it is described closure axis longitudinally move；The frame body portion of the nail bin groupware stent is applied in the nail-anvil assembly and is pushed away Power, the connecting portion of the nail bin groupware stent can relatively described closure drive component swing in the first direction, the first direction The direction of the power on the nail bin groupware stent is acted on for the nail anvil stent.

7. surgical operating instrument as claimed in claim 6, it is characterised in that the closure drive component, which further includes, is arranged on institute The closure nut on closure axis is stated, the closure nut is connected with the closure axle thread, and the connecting pin has mounting hole, institute State closure nut to be inserted into the mounting hole, be clearance fit between the closure nut and mounting hole.

8. the surgical operating instrument as described in claim 1 or 5, it is characterised in that the frame body portion has to be set away from connecting portion The front end put, the front end are arranged to be less than the connecting portion.

9. the surgical operating instrument as described in claim 1 or 5, it is characterised in that trigger shaft is provided with the nail-anvil assembly, The cutting assembly that is threadedly coupled and can be moved on the trigger shaft with the trigger shaft is provided with the trigger shaft, it is described outer Section's operating theater instruments further includes trigger switch and triggers the triggering application member of the trigger switch, and the side of the trigger switch is set There is fixed plate, the first elastic component is provided with the fixed plate, the triggering application member is arranged on the one of first elastic component Side；The cutting assembly supports triggering application member, and when the cutting assembly percussion resets, the cutting assembly promotes the triggering Application member is mobile towards trigger switch and triggers trigger switch；When the cutting assembly fires, first elastic component drives institute Triggering application member is stated away from trigger switch and close to cutting assembly.

10. the surgical operating instrument as described in claim 1 or 5, it is characterised in that slipping block is arranged with the trigger shaft, The slipping block and trigger shaft clearance fit, the cutting assembly supports the triggering application member by the slipping block, described The side of slipping block is provided with the second elastic component for driving the sliding component to be moved towards the direction of cutting assembly.