It is a kind of first to suture the surgical incision stapler for cutting afterwardsTechnical field
The surgical incision stapler for cutting afterwards can be first sutured the present invention relates to a kind of.
Background technology
Surgical incision stapler is generally to be used in general surgery, thoracic surgery, gynaecology, pediatric surgical operation at presentA kind of surgical operating instrument.The product uses stapler principle, by the staggered suture needle of straight line, in operation to internal organs orOtch carries out closing suture.Surgical incision stapler has suture neat, sutures mouth fastness reliability, and haemostatic effect and blood fortune keepGood the characteristics of.But traditional surgical incision stapler is sutured, cutting is synchronous is carried out, and in practical operation, cutting knifeCut-out tissue will be sutured prior to staple and organized.So cut tissue and cut-out tissue vertical direction it is strong in the case of, easilyOccur being avulsed apparatus after tissue cut-out and staple does not squeeze into the malpractice of tissue.Shown according to statistics, complain tissueSuture needle is unformed after being cut or is not molded over structural the rate of complaints completely 0.2% or so.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of surgical incision stapler for first suturing and cutting afterwards.
In order to solve the above-mentioned technical problem, a kind of technical scheme of present invention use is：
A kind of surgical incision stapler, including the end effector positioned at front end, the Handleset positioned at rear end, for evenThe drive mechanism of end effector and described Handleset described in connecing,
Described end effector include housing, the staple in described housing and cutting knife, be slidably arranged in it is describedHousing in for promoting the nail-pushing part of described staple, being slidably arranged in described housing for promoting described cutting knifePush broach part；
Described drive mechanism include sliding along the longitudinal direction so as to drive described push broach part to slide center-pole,Can slide along the longitudinal direction so as to drive described nail-pushing part to slide ejector pin bar, for the center-pole that is connected described andThe transmission device of described ejector pin bar, described drive mechanism has nail hitting position and cutting position, when described drive mechanismDuring in nail hitting position, in the presence of described transmission device so that the sliding distance of described ejector pin bar is more than describedThe sliding distance of center-pole, so that described staple releases described housing, described cutting knife position by described nail-pushing partIn in described housing；When described drive mechanism is in cutting position, the sliding distance of described center-pole is more than describedEjector pin bar sliding distance so that described cutting knife releases described housing by described push broach part.
Specifically, described drive mechanism also includes assembly frame, and described transmission device includes being formed in described centerThe first chute for extending on bar and along the longitudinal direction, the first axle, leading section and the institute that are slidably arranged in the first described chuteThe rearward end of the ejector pin bar stated by described first axle rotate connection the first hinge bar, be formed on described center-poleAnd the second chute of extension, the second axle, the leading section that can be slidably arranged in the second described chute are inclined along the vertical directionRotated by the second described axle with the rearward end of the first described hinge bar be connected the second hinge bar, be formed in it is describedThe 3rd chute for extending on center-pole and along the longitudinal direction, the 3rd axle being slidably arranged in the 3rd described chute, it is describedThe rearward end of the second hinge bar is rotated with described assembly frame by the 3rd described axle and is connected.
More specifically, the upper end of the second described chute is connected with the leading section of the 3rd described chute, it is describedSecond chute is inclined upwardly extension from front to back, and the first described chute and the second described chute are on the same line.
Specifically, described drive mechanism is also connected including being rotated with described Handleset firing handle and instituteThe firing handle stated rotates connection and the push rod that can be rotated with the rotation of described firing handle, described push rodUpper end can be selectively engaged with the rear end face of described center-pole, when upper end and the described center of described push rodWhen the rear end face of bar is engaged, described center-pole can be slided with the rotation of described push rod.
More specifically, described drive mechanism also include rotated with described Handleset be connected set lever, afterEnd rotated with described set lever the connecting rod being connected, be formed on described center-pole the 4th chute, can slideBe arranged on the leading section of the 4th rotating shaft in the 4th described chute, rearward end and described connecting rod by described the 4th turnAxle rotates and connection and the assembly frame of described center-pole forward slip can be driven with the rotation of described set lever,Described set lever includes off-position and locked position, and when described set lever is in off-position, described pushes awayThe upper end of bar is separated with the rear end face of described center-pole；It is described when described set lever is in locked positionPush rod is engaged with the rear end face of described center-pole.
Specifically, described surgical incision stapler also includes completing right when the described push broach part of described center-pole promotionThe audio feedback device of audio feedback can be produced during the cutting of tissue, described audio feedback device includes being arranged on describedShifting block on Handleset, the fixed block being arranged on by described shifting block, it is formed on described center-pole and institute can be stirredThe shifting block stated is so that described shifting block beats described fixed block and sends the projection of the sound.
Specifically, described surgical incision stapler also includes to be hindered when not having described staple in described housingThe locking mechanism of only described drive mechanism forward slip, described locking mechanism includes being rotated with described end effectorThe interest of connection, the safety plug being arranged in described interest, it is arranged in described drive mechanism and can be withDescribed safety plug coordinate the safety groove of locking, be arranged on described end effector cause described safety plug have towardsThe relief spring of the direction motion of described safety groove；It is described when described nail-pushing part is pressed in described interestSafety plug and described safety groove be separated.
Specifically, described surgical incision stapler also includes causing the back-moving spring that described drive mechanism resets.
Specifically, described surgical incision stapler also includes initial position, when described surgical incision stapler is inDuring initial position, the leading section of described center-pole is located at the rear of the leading section of described ejector pin bar.
Specifically, the draw-in groove extended along the length direction of described push broach part is formed with described push broach part, it is describedThe leading section of center-pole be formed with the fixture block that can coordinate clamping with described draw-in groove.
Specifically, described ejector pin bar and described transmission device has two groups and is symmetricly set on described center-poleThe left and right sides.
It is referred to above to all around go up the inferior noun of locality, be when surgical incision stapler is used, away from operationOne end of person（End i.e. where end effector）It is front end, near one end of operator（And end where Handleset）It is rear end,Side lower section is defined where set lever and firing handle.
The scope of the present invention, however it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, while should also containOther technical schemes that lid is combined and is formed by above-mentioned technical characteristic or its equivalent feature.Such as features described above and sheetDisclosed in application（But it is not limited to）Technical scheme that technical characteristic with similar functions is replaced mutually and formed etc..
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The present invention is by externalThe improvement of section's stapler structure so that operation when, staple can first be pushed out housing to tissue suture after, cutting knife isHousing can be pushed out to cut tissue, it is to avoid tissue causes that tissue departs from surgery and cuts because external force is acted on after being cutSlot clutch and cause the staple cannot be to the defect that be sutured of tissue, so that carrying out hand using this surgical incision staplerArt is safer.
Brief description of the drawings
Accompanying drawing 1 is the present invention in the structural representation of initial position；
Accompanying drawing 2 is the present invention in the structural representation of position location；
Accompanying drawing 3 is the present invention in the structural representation of locked position；
Accompanying drawing 4 is the present invention in the structural representation of nail hitting position；
Accompanying drawing 5 is the present invention in the structural representation of cutting position；
Accompanying drawing 6 is the structural representation of nail bin groupware；
Accompanying drawing 7 is the structural representation of nail-pushing part；
Accompanying drawing 8 is the structural representation of push broach part and cutting knife；
Accompanying drawing 9 is the profile of push broach part and cutting knife；
Accompanying drawing 10 is the stereogram of drive mechanism；
The structural representation of bar centered on accompanying drawing 11；
Accompanying drawing 12 is the front view of drive mechanism；
Accompanying drawing 13 is the front view of audio feedback mechanism；
Accompanying drawing 14 is the partial enlarged drawing of audio feedback mechanism；
Wherein：1st, end effector；2nd, Handleset；3rd, drive mechanism；4th, audio feedback device；
11st, device body；12nd, anvil assembly；13rd, nail bin groupware；
121st, edge bearing；122nd, resist-nailed seat；
31st, center-pole；32nd, ejector pin bar；33rd, firing handle；34th, push rod；35th, set lever；36th, connecting rod；37th, the 4th slideGroove；38th, the 4th rotating shaft；39th, assembly frame；3a, the first chute；3b, first axle；3c, the first hinge bar；3d, the second chute；3e、Second axle；3f, the second hinge bar；3g, the 3rd chute；3h, the 3rd axle；3i, back-moving spring；
131st, housing；132nd, cutting knife；133rd, nail-pushing part；134th, push broach part；135th, pilot pin；
1331st, nail seat；1332nd, groove；1333rd, ejector pin block；
41st, shifting block；42nd, fixed block；43rd, projection；
51st, draw-in groove；52nd, fixture block；53rd, sliding part；54th, projection；55th, chute；56th, limiting section；57th, interest；58th, protectDanger pin；59th, safety groove.
Specific embodiment
As shown in accompanying drawing 1 to 5, a kind of surgical incision stapler, including end effector 1 positioned at front end, positioned at rear endHandleset 2, the drive mechanism 3 for connecting end effector 1 and Handleset 2.
End effector 1 include device body 11, be fixedly installed on the leading section of device body 11 anvil assembly 12, can be along precedingRear direction is slidably arranged in the nail bin groupware 13 on device body 11.
As shown in accompanying drawing 6 to 9, nail bin groupware 13 includes the internal housing 131 with cavity volume, is used in housing 131Multiple staples of suture tissue, the cutting knife 132 organized for cutting in housing 131, are formed with housing 131 and supply cutting knife132 cutter grooves stretched out and the multiple nail slotted eyes projected for staple, nail bin groupware 13 also includes can be along fore-and-aft direction slidablyBeing arranged in housing 131 is used for the nail-pushing part 133 of staple push nail slotted eye, can be slidably arranged in shell along fore-and-aft directionIt is used to release cutting knife 132 the push broach part 134 of cutter groove, the leading section of push broach part 134 and the rearward end phase of cutting knife 132 in body 131It is fixedly connected.Nail bin groupware 13 also includes the pilot pin 135 that can be slidably arranged in along fore-and-aft direction in housing 131.
As shown in Figure 7, nail-pushing part 133 include nail seat 1331, be formed in nail seat 1331 front end face the left and right sidesFirst and second, be formed in nail seat 1331 and can be passed through for cutting knife 132 between first and second it is logicalGroove 1332, first and the Part II not ejector pin including multi-row staggered setting is arranged, in the present embodiment, first and Part IINot Bao Kuo two rows linearly set ejector pin row, certainly, ejector pin row row can be configured according to actual needs, do not limitIt is set to two rows, often row's ejector pin row includes multiple ejector pin blocks 1333, multiple ejector pin blocks 1333 follow closely slotted eyes 1 a pair with multiple respectivelyShould, groove 1332 is corresponding with cutter groove, therefore, cutter groove is located at the centre of the front end face of housing 131, and the left and right sides of cutter groove is right respectivelyMultiple rows of needle tray hole should be provided with.
Is formed with staple, housing 131 for multiple ejector pin blocks 1333 in order that obtaining ejector pin block 1333 and can preferably promoteThe multiple stopper slots for sliding and being connected with nail slotted eye, staple is located in stopper slot, and ejector pin block is caused when ejector pin block 1333 is promoted1333 in stopper slot when sliding, and the leading section of ejector pin block 1333 contacts with the rearward end of staple, so as to staple is released into housing131。
Anvil assembly 12 includes the edge bearing 121 that can coordinate with cutting knife 132, the resist-nailed seat 122 that can coordinate with staple, whenStaple is pushed out housing 131 and through after organizing, and staple is contacted with resist-nailed seat 122 so as to be bent in the presence of resist-nailed seat 122Shaping.
As shown in accompanying drawing 1 to 5,10 to 12, drive mechanism 3 includes to slide along the longitudinal direction so as to drive push broach part134 slide center-poles 31, can slide along the longitudinal direction so as to drive nail-pushing part 133 slide ejector pin bar 32, for being drivenThe transmission device and Handleset 2 of connection center-pole 31 and ejector pin bar 32 rotate the firing handle 33 and firing handle of connection33 rotate connection and the push rod 34 that can be rotated with the rotation of firing handle 33, and the upper end of push rod 34 can be with centerThe rear end face of bar 31 is selectively engaged, when the upper end of push rod 34 engages with the rear end face of center-pole 31, center-pole 31Can with the rotation of push rod 34 forward slip.
Set lever 35, rearward end and the phase of set lever 35 that drive mechanism 3 is also connected including being rotated with Handleset 2Rotate the connecting rod 36 for connecting, the 4th chute 37 being formed on center-pole 31, can be slidably arranged in the 4th chute 37The leading section of the 4th rotating shaft 38, rearward end and connecting rod 36 by the 4th rotating shaft 38 rotate connection and can be with set lever 35Rotation and drive the assembly frame 39 of the forward slip of center-pole 31, the leading section of assembly frame 39 respectively with the housing of nail bin groupware 13131 are connected with pilot pin 135.
Transmission device includes the first chute 3a for being formed on center-pole 31 and extending along the longitudinal direction, is slidably arranged in theThe rearward end of first axle 3b, leading section and ejector pin bar 32 in one chute 3a is rotated by first axle 3b and the first of connection is hingedBar 3c, the second chute 3d for being formed on center-pole 31 and inclining extension along the vertical direction, the second chute can be slidably arranged inThe second axle 3e, leading section in 3d are rotated the second hinge bar being connected with the rearward end of the first hinge bar 3c by the second axle 3e3f, the 3rd chute 3g for being formed on center-pole 31 and extending along the longitudinal direction, the 3rd be slidably arranged in the 3rd chute 3gThe rearward end of axle 3h, the second hinge bar 3f is rotated with assembly frame 39 by the 3rd axle 3h and is connected.The upper end of the second chute 3dLeading section with the 3rd chute 3g is connected, and the second chute 3d is inclined upwardly extension from front to back, and the first chute 3a and second is slidedGroove 3d is on the same line.
Position when surgical incision stapler includes that initial position, i.e. surgical incision stapler are not used after the completion of assembling,When surgical incision stapler is in initial position, the leading section of center-pole 31 is located at the rear of the leading section of ejector pin bar 32, cutsKnife 132 is located at the rear of staple, and the rearward end of nail-pushing part 133 is located at the front of push broach part 134, so as to ensure when nail-pushing part 133When releasing staple, cutting knife 132 can not be released housing 131 by push broach part 134.
During set lever 35 rotates backward so that set lever 35 includes off-position, position location and lockingPosition, when set lever 35 is in off-position, the upper end of push rod 34 is separated with the rear end face of center-pole 31, so thatWhen must operate firing handle 33, it is impossible to drive the forward slip of center-pole 31, play tissue clamping it is not in place when, the nothing of drive mechanism 3Method carries out nail hitting and cutting operation, in a preferred embodiment, when set lever 35 is in off-position, center-pole 31Downside support be located on push rod 34 so that firing handle 33 cannot be rotated.
When set lever 35 is in position location, drive mechanism 3 and the overall forward slip of nail bin groupware 13, assembly frame 39Promote the forward slip of pilot pin 135 so as to pilot pin 135 is released into housing 131,135 pairs of tissues of pilot pin are positioned, now,The upper end of push rod 34 is still separated with the rear end face of center-pole 31.
When set lever 35 is in locked position, drive mechanism 3 and the entirety of nail bin groupware 13 continue forward slip, so thatSo that tissue is clamped between anvil assembly 12 and nail bin groupware 13, now, behind the upper end of push rod 34 and center-pole 31End face is engaged, and drive mechanism 3 can carry out nail hitting and cutting operation.
Drive mechanism 3 has nail hitting position and cutting position, when set lever 35 is in locked position, rotates percussion handHandle 33 enables to drive mechanism 3 to be changed between nail hitting position and cutting position, when drive mechanism 3 is in nail hitting position,In the presence of transmission device, i.e. the second axle 3e is slided in the second chute 3d so that the first hinge bar 3c and the second hinge bar3f is in same straight line, so that sliding distance of the sliding distance of ejector pin bar 32 more than center-pole 31, so that stapleHousing 131 is released by nail-pushing part 133, cutting knife 132 is located in housing 131；When drive mechanism 3 is in cutting position, center-pole31 continue forward slip, and because first axle 3b is slided in the first chute 3a, the second axle 3e and the 3rd axle 3h are in the 3rd chute 3gInterior slip, so that sliding distance of the sliding distance of center-pole 31 more than ejector pin bar 32, so that cutting knife 132 is by push broachPart 134 releases housing 131.
In order to preferably promote nail-pushing part 133 and push broach part 134, ejector pin bar 32 and transmission device to have two groups and symmetrically setPut in the left and right sides of center-pole 31.
As shown figs. 13 and 14, surgical incision stapler also includes promoting push broach part 134 to complete to group when center-pole 31The audio feedback device 4 of audio feedback, audio feedback device 4 can be produced during the cutting knitted to be included being arranged on Handleset 2Shifting block 41, be arranged on the fixed block 42 on the side of shifting block 41, be formed on center-pole 31 and shifting block 41 can be stirred so that diallingBlock 41 beats fixed block 42 and sends the projection 43 of the sound.Fixed block 42 has two and is symmetricly set on front and rear the two of shifting block 41Side, when the forward slip of projection 43 and when stirring shifting block 41, the stress of shifting block 41 and swing, so as to the fixed block with front and rear both sides42 collide sends the sound.
Drive mechanism 3 also includes the back-moving spring 3i for enabling to drive mechanism 3 to reset, the two end portions of back-moving spring 3iCenter-pole 31 is not connected to be connected with assembly frame 39.After firing handle 33 and set lever 35 are discharged, center-pole 31 and groupPart frame 39 can slide backward reset in the presence of back-moving spring 3i.
In order to prevent cutting knife 132 from hurting user, as shown in Figure 9, it is formed with push broach part 134 along push broach part 134Length direction（That is above-below direction）The draw-in groove 51 of extension, as shown in Figure 13, the leading section of center-pole 31 is formed with can be withDraw-in groove 51 coordinates the fixture block 52 of clamping, and when center-pole 31 is slided backward in the presence of back-moving spring 3i, push broach part 134 can be withCenter-pole 31 to slide backward together, and cutting knife 132 is fixedly connected with push broach part 134, therefore, cutting knife 132 can be with push broach part134 slide backward so as to be contained in again in housing 131 together.
As shown in accompanying drawing 1 to 5, nail bin groupware 13 also includes being arranged between housing 131 and nail-pushing part 133 being pushed away for limitationNail piece 133 is only capable of the stopping means of forward slip.Stopping means includes the sliding part 53 being formed on nail-pushing part 133, is formedOn housing 131 and extend back projection 54, be collectively forming by projection 54 and housing 131 and can be slided for sliding part 53Chute 55, it is formed on projection 54 and towards the multiple limiting sections 56 extended in chute 55.The front end face of limiting section 56 is plane,Rear end face is the inclined-plane for extending towards the inside of chute 55 from back to front.Due to the presence of stopping means, and ejector pin bar 32Leading section is not fixedly connected with the rearward end of nail-pushing part 133, is only the contact of end face, therefore, when ejector pin 32 forward slip of bar,Ejector pin bar 32 can promote the forward slip together of nail-pushing part 133, and when ejector pin bar 32 is slided backward, nail-pushing part 133 can notAnd then slide backward together, in addition, in the presence of stopping means, being more effectively prevented from nail-pushing part 133 and sliding backward.
Surgical incision stapler also includes that the forward slip of drive mechanism 3 can be prevented when no staple in housing 131Locking mechanism, locking mechanism include rotated with the device body 11 of end effector 1 be connected interest 57, be arranged on insurance masterSafety plug 58 on body 57, the safety groove for being arranged in the assembly frame 39 of drive mechanism 3 and locking being coordinated with safety plug 5859th, it is arranged on the device body 11 of end effector 1 and causes that safety plug 58 has the insurance bullet moved towards the direction of safety groove 59Spring.Because when set lever 35 and firing handle 33 are not operated, nail-pushing part 133 is pressed in interest 57, therefore, insurancePin 58 is separated with safety groove 59, and locking mechanism is in released state；When set lever 35 is operated, drive mechanism 3 it is overall toFront slide so that safety groove 59 is moved to the front of safety plug 58, and safety plug 58 cannot be inserted in safety groove 59, so as to lock machineStructure cannot be locked；After surgical incision stapler completes suture and cuts, back-moving spring 3i drives drive mechanism 3 to reset, now,Because nail-pushing part 133 cannot be slided backward together, therefore, connect with safety plug 58 when assembly frame 39 slides backwards on safety groove 59When touching, locking mechanism is locked, and drive mechanism 3 cannot forward slip.
As described above, we are illustrated fully according to spirit of the invention, but the present invention is not limited to above-mentioned realityApply example and implementation.The practitioner of correlative technology field can carry out different in the range of technological thought of the invention licenseChange and implementation.