CN104856734A - Connecting mechanism of curved cutting stapler - Google Patents
Connecting mechanism of curved cutting stapler Download PDFInfo
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- CN104856734A CN104856734A CN201510239353.1A CN201510239353A CN104856734A CN 104856734 A CN104856734 A CN 104856734A CN 201510239353 A CN201510239353 A CN 201510239353A CN 104856734 A CN104856734 A CN 104856734A
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- Prior art keywords
- arc
- intermediate casing
- binding clip
- groove
- clip assembly
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
Abstract
The invention provides a connecting mechanism of a curved cutting stapler. The connecting mechanism of the curved cutting stapler comprises a drive rod set, and the drive rod set comprises a driving portion intermediate casing and a driving portion inner pipe. Two arc clamping grooves are arranged on the driving portion intermediate casing in a spaced mode, arc check blocks are arranged on the arc clamping groove, the clearances between the arc check blocks and the arc clamping grooves in the length direction are clamping clearances, and the clearances between the arc check blocks and the arc clamping grooves in the circumferential direction of the driving portion intermediate casing are insertion clearances. A locking groove is formed in the driving portion, and an elastic push rod is arranged in the locking groove. An executing rod set comprises an executing portion intermediate casing and an executing portion inner pipe. Two arc clamping opening portions are arranged on the executing portion intermediate casing, the arc clamping opening portions are inserted into the insertion clearances, and the arc clamping opening portions drive the elastic push rod to stretch into the locking groove. The arc clamping opening portions are clamped in to the clamping clearances by rotating the executing portion intermediate casing. The connecting mechanism of the curved cutting stapler is simple in structure, convenient to use and capable of being disassembled without tools.
Description
Technical field
The present invention relates to stapling technique in anus reservation field, particularly relate to a kind of bindiny mechanism of Endo-GIA.
Background technology
The scope Endo-GIA and the executive module thereof that are applicable to Minimally Invasive Surgery are that a kind of multiple anastomosis staple intermeshing arrangement can being in line in tissue hammers into, and simultaneously with the apparatus that the tissue between anastomosis staple line cuts off by cutter, also be one of apparatus being widely used in Minimally Invasive Surgery, the excision being mainly used in organizing in the open or endoscopic surgery of abdominal surgery, gynecological, department of pediatrics and thoracic surgery, cross-section and identical.
Chinese invention patent " being applicable to the Endo-GIA executive module of Minimally Invasive Surgery " application number is that CN201310265504.1 discloses a kind of executive module, the binding clip of this executive module is provided with nail bin, nail supporting base, pedestal, pushing slice of nail and cutter etc., for being loaded in the front end of the driver part of Endo-GIA in this executive module, the sleeve pipe of executive module is connected with the drive division outer tube of driver part, and is fixed by screw; The inside of the sleeve pipe of executive module is provided with connecting pin, and connecting pin is connected with the rod member of driver part inside.This by the driver part of Endo-GIA and executive module connected mode, junction easily loosens due to existing, and needs instrument to mount and dismount, so very inconvenient.
How to design a kind of structure simple, easy to use, without the need to instrument is namely detachable and the mechanism of stable connection is those skilled in the art needs the problem that solves.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problem that the present invention solves be to provide a kind of structure simple, easy to use, without the need to instrument the namely detachable and bindiny mechanism of the Endo-GIA of stable connection.
For achieving the above object and other relevant objects, the invention provides a kind of bindiny mechanism of Endo-GIA, Endo-GIA comprises binding clip assembly and driven unit, described bindiny mechanism comprises: the execution bar group be connected with described binding clip assembly, the group of drive rods be connected with described driven unit, described execution bar group is connected with described group of drive rods; Described group of drive rods comprises drive division intermediate casing pipe interior with the drive division of the inside being arranged at described drive division intermediate casing; The lateral surface of one end of the close described binding clip assembly of described drive division intermediate casing is arranged at intervals with two arc screens grooves; Described arc screens groove extends to the end face of the close described binding clip assembly of described drive division intermediate casing; Described arc screens groove is provided with block arc, the gap of described block arc on the length direction of described drive division intermediate casing and between the cell wall of described arc screens groove is clamping gap, and the gap of described block arc in the circumference of described drive division intermediate casing and between the cell wall of described arc screens groove is grafting gap; The lateral surface of described drive division intermediate casing is also provided with lock slots, and described lock slots extends to arc screens groove described in one of them, and a resilient push is arranged in described lock slots, and described resilient push can move along the length direction of described lock slots; Described execution bar group comprises enforcement division intermediate casing pipe interior with the enforcement division of the inside being arranged at described enforcement division intermediate casing; Described enforcement division intermediate casing is provided with two arc bayonet parts corresponding to described block arc, described arc bayonet part is inserted in described grafting gap, and one end being in described arc screens groove that described arc bayonet part promotes described resilient push is stretched in described lock slots; Rotate described enforcement division intermediate casing, described arc bayonet part snaps in described clamping gap, and one end of the close described binding clip assembly of described resilient push is stretched in described arc screens groove, and described resilient push blocks described arc bayonet part; In described drive division, pipe is connected with pipe in described enforcement division.
Preferably, described resilient push comprises push rod and spring part, described push rod comprises the push rod stopper, push rod connecting portion and the push rod control part that connect successively, the end face of one end away from binding clip assembly of described push rod stopper is provided with body of rod groove, and one end of described spring part is inserted in described body of rod groove; Described lock slots comprises the stopper cell body, connecting portion cell body and the control part cell body that set gradually, and the cell wall away from described binding clip assembly of described stopper cell body is provided with spring retainer groove; Described push rod stopper is arranged in stopper cell body, and one end away from described binding clip assembly of described spring part is inserted in described spring retainer groove, and the length of described push rod stopper is less than or equal to the length of described stopper cell body; Described push rod connecting portion is arranged in described connecting portion cell body, and the length of described push rod connecting portion is less than the length of described connecting portion cell body; Described push rod control part is arranged in described control part cell body, and the length of described push rod control part is less than the length of described control part cell body.
Further, be provided with inserting column in described body of rod groove, described inserting column is inserted in one end of the close described binding clip assembly of described spring part.
Further, one end away from described binding clip assembly of the push rod control part of described push rod is provided with a lock-button.
Preferably, described arc bayonet part comprise be arranged at described enforcement division intermediate casing away from the bayonet socket contiguous block on the end face of described binding clip assembly, and the clamping projection be arranged on the end face of described bayonet socket contiguous block, described bayonet socket contiguous block and described clamping projection are arc, and the distance between one end away from described binding clip assembly of described block arc and the end face of described enforcement division intermediate casing equals the length of described clamping projection; Described push rod stopper is arc, when described arc bayonet part snaps in described clamping gap, on same radial section, the intrados of described clamping projection corresponds to clamping camber line, the intrados of described push rod stopper corresponds to stopper camber line, the bottom land of described arc screens groove corresponds to draw-in groove camber line, length and the length equaling described draw-in groove camber line of described clamping camber line and described stopper camber line.
Preferably, in described drive division, the end face of the close described binding clip assembly of pipe is provided with embedded groove, the cell wall that two of described embedded groove are relative is respectively equipped with block piece, between one end away from described binding clip assembly of described block piece and the bottom land of described embedded groove, there is spacing gap; In described enforcement division, one end away from described binding clip assembly of pipe is provided with tumbler, and described tumbler is provided with locating part; The distance being in two sides of width of described locating part is less than the distance between two block pieces; The distance being in two sides of short transverse of described locating part is greater than the distance between two block pieces.
Further, two sides being in width of described locating part are plane, in one of them side being in width of described locating part and described enforcement division pipe axis between angle equal described arc bayonet part and snap into the angle needing in described clamping gap to rotate.
Preferably, described group of drive rods also comprises the drive division outer tube being set in described drive division intermediate casing outside; Described execution bar group also comprises the enforcement division outer tube being arranged at and being set in described enforcement division intermediate casing outside; Described bindiny mechanism also comprises overcoat, and described drive division outer tube is connected with described enforcement division outer tube by described overcoat.
Further, one end away from described binding clip assembly of described enforcement division outer tube is provided with and is fastenedly connected groove; One end of the close described binding clip assembly of the medial surface of described overcoat is provided with and is fastenedly connected hole; Described enforcement division outer tube through being fastenedly connected groove and being fastenedly connected hole, is connected with described overcoat by securing member successively.
Further, one end of the close described binding clip assembly of described drive division outer tube is provided with annular groove and connectivity slot, described annular groove is arranged along the circumference of the lateral surface being arranged at described drive division outer tube, one end of described connectivity slot is communicated with described annular groove, and the other end of described connectivity slot extends to the end face of the close described binding clip assembly of described drive division outer tube; One end away from described binding clip assembly of the medial surface of described overcoat is provided with projection piece, and described projection piece penetrates in described connectivity slot, and after described overcoat rotates, described projection piece snaps in described annular groove.
As mentioned above, the bindiny mechanism of Endo-GIA of the present invention, there is following beneficial effect: after enforcement division intermediate casing of the present invention and the grafting of drive division intermediate casing, the arc bayonet part of enforcement division intermediate casing promotes resilient push and moves, rotate enforcement division intermediate casing, arc bayonet part can snap in clamping gap, and resilient push can stretch in described arc screens groove, blocks arc bayonet part; When enforcement division intermediate casing and drive division intermediate casing are taken apart by needs, resilient push is only needed to pull to the direction away from binding clip assembly, resilient push shifts out arc screens groove, rotate enforcement division intermediate casing, make arc bayonet part shift out clamping gap, enforcement division intermediate casing just can be made to be separated with drive division intermediate casing; Structure of the present invention is simple, easy to use, the namely detachable and stable connection without the need to instrument.
Accompanying drawing explanation
The structural representation that the bindiny mechanism that Fig. 1 is shown as the Endo-GIA of the present embodiment is connected with executive module and driven unit.
Fig. 2 is shown as the structural representation of the bindiny mechanism of the Endo-GIA of the present embodiment.
Fig. 3 is shown as the schematic diagram of the A-A section of Fig. 2.
Fig. 4 is shown as the decomposing schematic representation of Fig. 2.
The structural representation that the drive division intermediate casing that Fig. 5 is shown as the bindiny mechanism of the Endo-GIA of the present embodiment is connected with enforcement division intermediate casing.
The push rod that Fig. 6 is shown as the bindiny mechanism of the Endo-GIA of the present embodiment is arranged at the structural representation in lock slots.
Fig. 7 is shown as the perspective view of the drive division intermediate casing of the bindiny mechanism of the Endo-GIA of the present embodiment.
Fig. 8 is shown as the side structure schematic diagram of the drive division intermediate casing of the bindiny mechanism of the Endo-GIA of the present embodiment.
Fig. 9 is shown as the structural representation of the push rod of the bindiny mechanism of the Endo-GIA of the present embodiment.
Figure 10 is shown as the perspective view of the C-C section of Fig. 2.
Figure 11 is shown as in Figure 10 structural representation when not arranging drive division intermediate casing.
Figure 12 is shown as the interior structural representation of managing when being connected with pipe in drive division of enforcement division of the bindiny mechanism of the Endo-GIA of the present embodiment.
Figure 13 is shown as the structure for amplifying schematic diagram at B place in Figure 12.
The structural representation of pipe in the enforcement division that Figure 14 is shown as the bindiny mechanism of the Endo-GIA of the present embodiment.
The structural representation of pipe in the drive division that Figure 15 is shown as the bindiny mechanism of the Endo-GIA of the present embodiment.
Figure 16 be shown as the bindiny mechanism of the Endo-GIA of the present embodiment overcoat is not set time structural representation.
Figure 17 is shown as the structural representation of the overcoat of the bindiny mechanism of the Endo-GIA into the present embodiment.
Drawing reference numeral explanation
1 binding clip assembly
2 driven units
3 bindiny mechanisms
100 perform bar group
110 enforcement division intermediate casings
111 arc bayonet parts
1111 bayonet socket contiguous blocks
1112 clamping projections
112 shifting chutes
Pipe in 120 enforcement divisions
121 tumblers
122 locating parts
130 enforcement division outer tubes
131 are fastenedly connected groove
140 guides
150 knife bars
200 group of drive rods
210 drive division intermediate casings
211 arc screens grooves
Bottom 2111 draw-in grooves
2112 first draw-in groove sidewalls
2113 parallel draw-in groove sidewalls
2114 second draw-in groove sidewalls
212 block arcs
213 clamping gaps
214 grafting gaps
215 lock slots
2151 stopper cell bodies
2152 connecting portion cell bodies
2153 control part cell bodies
2154 spring retainer grooves
216 resilient push
2160 push rod
2161 push rod stoppers
2162 push rod connecting portions
2163 push rod control parts
2164 body of rod grooves
2165 inserting columns
217 spring parts
Pipe in 220 drive divisions
221 embedded grooves
222 block pieces
223 spacing gaps
230 drive division outer tubes
231 annular grooves
232 connectivity slots
233 locking moving hole
300 lock-button
400 overcoats
410 are fastenedly connected hole
420 projection pieces
500 support sets
510 locking trepannings
The distance being in two sides of width of L1 locating part
The distance being in two sides of short transverse of L2 locating part
L3 clamping camber line
L4 stopper camber line
L5 draw-in groove camber line
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to accompanying drawing.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Fig. 1 to Fig. 5, Fig. 8, the bindiny mechanism 3 of the Endo-GIA of the present embodiment, Endo-GIA comprises binding clip assembly 1 and driven unit 2, bindiny mechanism 3 comprises: the execution bar group 100 be connected with binding clip assembly 1, the group of drive rods 200 be connected with driven unit 2, performs bar group 100 and is connected with group of drive rods 200;
Group of drive rods 200 comprise drive division intermediate casing 210 and be arranged at drive division intermediate casing 210 inside drive division in pipe 220; In the present embodiment, the length direction of drive division intermediate casing 210 and the axis of drive division intermediate casing 210 are in the same way;
The lateral surface of one end of the close binding clip assembly 1 of drive division intermediate casing 210 is arranged at intervals with two arc screens grooves 211; Arc screens groove 211 extends to the end face of the close binding clip assembly 1 of drive division intermediate casing 210;
Arc screens groove 211 is provided with block arc 212, the gap of block arc 212 on the length direction of drive division intermediate casing 210 and between the cell wall of arc screens groove 211 is clamping gap 213, and the gap of block arc 212 in the circumference of drive division intermediate casing 210 and between the cell wall of arc screens groove 211 is grafting gap 214;
The lateral surface of drive division intermediate casing 210 is also provided with lock slots 215, lock slots 215 extends to one of them arc screens groove 211, lock slots 215 is communicated with this arc screens groove 211, one resilient push 216 is arranged in lock slots 215, and resilient push 216 can move along the length direction of lock slots 215;
Perform bar group 100 comprise enforcement division intermediate casing 110 and be arranged at enforcement division intermediate casing 110 inside enforcement division in pipe 120;
Enforcement division intermediate casing 110 is provided with two arc bayonet parts 111 corresponding to block arc 212, arc bayonet part 111 is inserted in grafting gap 214, and one end being in arc screens groove 211 that arc bayonet part 111 promotes resilient push 216 is stretched in lock slots 215; Rotate enforcement division intermediate casing 110, arc bayonet part 111 snaps in clamping gap 213, and one end of the close binding clip assembly 1 of resilient push 216 is stretched in arc screens groove 211, and resilient push 216 blocks arc bayonet part 111;
In drive division, pipe 220 is connected with pipe in enforcement division 120.
When drive division intermediate casing 210 of the present invention is not connected with enforcement division intermediate casing 110, one end of the close binding clip assembly 1 of resilient push 216 is stretched in arc screens groove 211.
When enforcement division intermediate casing 110 is connected with drive division intermediate casing 210, the arc bayonet part 111 of enforcement division intermediate casing 110 is inserted in the grafting gap 214 of arc screens groove 211 of drive division intermediate casing 210, and arc bayonet part 111 promotes resilient push 216 moves, one end of the close binding clip assembly 1 of resilient push 216 is fully advanced in lock slots 215; Afterwards, rotate enforcement division intermediate casing 110, arc bayonet part 111 can snap in clamping gap 213, now, one end of the close binding clip assembly 1 of resilient push 216 can be ejected from lock slots 215, and resilient push 216 blocks arc bayonet part 111, prevents enforcement division intermediate casing 110 from rotating.
When needing the enforcement division intermediate casing 110 linked together to take apart with drive division intermediate casing 210, resilient push 216 is pulled to the direction away from binding clip assembly 1, resilient push 216 shifts out arc screens groove 211, and enter after in lock slots 215, rotate enforcement division intermediate casing 110, make arc bayonet part 111 shift out clamping gap 213, arc bayonet part 111 just can shift out from grafting gap 214, and enforcement division intermediate casing 110 is that is separable with drive division intermediate casing 210.
Enforcement division intermediate casing 110 and drive division intermediate casing 210 are hollow structure.
As shown in Fig. 4, Fig. 7 and Fig. 8, arc screens groove 211 extends to the end face of the close binding clip assembly 1 of drive division intermediate casing 210, arc screens groove 211 to comprise bottom draw-in groove 2111, bottom draw-in groove, 2111 are provided with the first draw-in groove sidewall 2112 connected successively, parallel draw-in groove sidewall 2113 and the second draw-in groove sidewall 2114, first draw-in groove sidewall 2112 is all vertical with the end face of drive division intermediate casing 210 with the second draw-in groove sidewall 2114, and parallel draw-in groove sidewall 2113 is parallel to the end face of drive division intermediate casing 210; Block arc 212 is arranged on the first draw-in groove sidewall 2112; Lock slots 215 extends to the parallel draw-in groove sidewall 2113 of one of them arc screens groove 211, so lock slots 215 is communicated with arc screens groove 211;
Clamping gap 213 is the gap formed between block arc 212 with parallel draw-in groove sidewall 2113, and grafting gap 214 is the gap formed between block arc 212 and the second draw-in groove sidewall 2114.
As shown in Fig. 4 to Fig. 7, Fig. 9, resilient push 216 comprises push rod 2160 and spring part 217, push rod 2160 comprises the push rod stopper 2161, push rod connecting portion 2162 and the push rod control part 2163 that connect successively, the end face of one end away from binding clip assembly 1 of push rod stopper 2161 is provided with body of rod groove 2164, and one end of the close binding clip assembly 1 of spring part 217 is inserted in body of rod groove 2164;
Lock slots 215 comprises the stopper cell body 2151, connecting portion cell body 2152 and the control part cell body 2153 that set gradually; The cell wall away from binding clip assembly 1 of stopper cell body 2151 is provided with spring retainer groove 2154;
Push rod stopper 2161 is arranged in stopper cell body 2151, and one end away from binding clip assembly 1 of spring part 217 is inserted in spring retainer groove 2154, and the length of push rod stopper 2161 is less than or equal to the length of stopper cell body 2151;
Push rod connecting portion 2162 is arranged in connecting portion cell body 2152, and the length of push rod connecting portion 2162 is less than the length of connecting portion cell body 2152; Push rod control part 2163 is arranged in control part cell body 2153, and the length of push rod control part 2163 is less than the length of control part cell body 2153.
When push rod stopper 2161 is when being promoted by arc bayonet part 111, push rod stopper 2161 promotes spring part 217 and compresses, push rod stopper 2161 can enter stopper cell body 2151 from arc screens groove 211 completely, meanwhile, push rod connecting portion 2162 and push rod control part 2163 also move to the direction away from binding clip assembly 1 respectively in connecting portion cell body 2152 and control part cell body 2153; Enter after in clamping gap 213 when enforcement division intermediate casing 110 rotates, the reset force of spring part 217 makes spring part 217 stretch, the reset force of spring part 217 promotes push rod stopper 2161 and enters arc screens groove 211 from stopper cell body 2151, and push rod connecting portion 2162 and push rod control part 2163 also move to the direction near binding clip assembly 1 respectively in connecting portion cell body 2152 and control part cell body 2153 simultaneously.
Be provided with inserting column 2165 in body of rod groove 2164, inserting column 2165 is inserted in one end of the close binding clip assembly 1 of spring part 217.This structure makes spring part 217 be inserting mode with the junction of resilient push 216, and this structure is simple, easy to assembly.
As shown in Fig. 4, Fig. 5, Fig. 7, Fig. 8, Figure 10 and Figure 11, arc bayonet part 111 comprise be arranged at enforcement division intermediate casing 110 away from the bayonet socket contiguous block 1111 on the end face of binding clip assembly 1, and the clamping projection 1112 be arranged on the end face of bayonet socket contiguous block 1111, bayonet socket contiguous block 1111 and clamping projection 1112 are arc, and the distance between one end away from binding clip assembly 1 of block arc 212 and the end face of enforcement division intermediate casing 110 equals the length of clamping projection 1112; Push rod stopper 2161 is arc, when arc bayonet part 111 snaps in clamping gap 213, on same radial section, the intrados of clamping projection 1112 corresponds to clamping camber line L3, the intrados of push rod stopper 2161 corresponds to stopper camber line L4, bottom the draw-in groove of arc screens groove 211,2111 correspond to draw-in groove camber line L5, length and the length equaling draw-in groove camber line L5 of clamping camber line L3 and stopper camber line L4.Time this structure makes arc bayonet part 111 snap in clamping gap 213, the push rod stopper 2161 extend in arc screens groove 211 can block clamping projection 1112, that is, the both sides of clamping projection 1112 contact with push rod stopper 2161 with the first draw-in groove sidewall 2112 respectively, and the both sides of push rod stopper 2161 contact with clamping projection 1112 with the second draw-in groove sidewall 2114 respectively.
As shown in Fig. 4, Figure 12 to Figure 15, in drive division, the end face of the close binding clip assembly 1 of pipe 220 is provided with embedded groove 221, the cell wall that two of embedded groove 221 are relative is respectively equipped with block piece 222, between one end away from binding clip assembly 1 of block piece 222 and the bottom land of embedded groove 221, there is spacing gap 223; In enforcement division, one end away from binding clip assembly 1 of pipe 120 is provided with tumbler 121, and tumbler 121 is provided with locating part 122; Tumbler 121 can rotate between two block pieces 222, and the size of tumbler 121 is less than the distance between two block pieces 222; The distance L1 being in two sides of width of locating part 122 is less than the distance between two block pieces 222; The distance L2 being in two sides of short transverse of locating part 122 is greater than the distance between two block pieces 222.Two sides on the width of locating part 122 and two block pieces 222 are on time, locating part 122 is inserted with embedded groove 221, and locating part 122 enters in spacing gap 223, pipe 220 in rotating drive portion, locating part 122 can be stuck in spacing gap 223.
As shown in Fig. 4, Fig. 5, Figure 12 to Figure 15, two sides being in width of locating part 122 are the plane be parallel to each other, in one of them side being in width of locating part 122 and enforcement division pipe 120 axis between angle equal arc bayonet part 111 and snap into the angle needing in clamping gap 213 to rotate.When arc bayonet part 111 is inserted in grafting gap 214, two sides on the width of locating part 122 aim at two block pieces 222 and locating part 122 is inserted in embedded groove 221; Enforcement division intermediate casing 110 rotates, and pipe 120 in enforcement division is rotated, then arc bayonet part 111 is inserted in clamping gap 213, and locating part 122 is stuck in spacing gap 223 simultaneously.
As shown in Fig. 3 to Fig. 5, Figure 16 and Figure 17, group of drive rods 200 also comprises the drive division outer tube 230 being set in drive division intermediate casing 210 outside; Perform bar group 100 and also comprise the enforcement division outer tube 130 being arranged at and being set in enforcement division intermediate casing 110 outside; Bindiny mechanism 3 also comprises overcoat 400, and drive division outer tube 230 is connected with enforcement division outer tube 130 by overcoat 400.Drive division outer tube 230 and enforcement division outer tube 130 are hollow structure.
One end away from binding clip assembly 1 of enforcement division outer tube 130 is provided with and is fastenedly connected groove 131; One end of the close binding clip assembly 1 of the medial surface of overcoat 400 is provided with and is fastenedly connected hole 410; Enforcement division outer tube 130 through being fastenedly connected groove 131 and being fastenedly connected hole 410, is connected with overcoat 400 by securing member successively; Enforcement division intermediate casing 110 be provided with shifting chute 112 away from the length direction along enforcement division intermediate casing 110 on one end of binding clip assembly 1, the position of shifting chute 112 is corresponding to the position being fastenedly connected groove 131, and the length being fastenedly connected groove 131 is less than the length of shifting chute 112; Securing member is through shifting chute 112, and after enforcement division outer tube 130 is connected with overcoat 400, enforcement division outer tube 130 and overcoat 400 can move along the length direction of enforcement division outer tube 130 in shifting chute 112.
One end of the close binding clip assembly 1 of drive division outer tube 230 is provided with annular groove 231 and connectivity slot 232, annular groove 231 is arranged along the circumference of the lateral surface being arranged at drive division outer tube 230, one end of connectivity slot 232 is communicated with annular groove 231, and the other end of connectivity slot 232 extends to the end face of the close binding clip assembly 1 of drive division outer tube 230; One end away from binding clip assembly 1 of the medial surface of overcoat 400 is provided with projection piece 420, and projection piece 420 penetrates in connectivity slot 232, and after overcoat 400 rotates, projection piece 420 snaps in annular groove 231.When arc bayonet part 111 is inserted in grafting gap 214, projection piece 420 penetrates in connectivity slot 232; Enforcement division intermediate casing 110 rotates, then arc bayonet part 111 is inserted in clamping gap 213, and meanwhile, projection piece 420 snaps in annular groove 231.When the present invention uses, after overcoat 400 is connected with execution bar group 100, only just execution bar group 100 need can be connected with group of drive rods 200 by rotating execution bar group 100, so, execution bar group 100 is connected with group of drive rods 200 or dismantles does not need use instrument, only need to rotate, very convenient, fast.
As shown in Fig. 3 to Fig. 6, Figure 16 and Figure 17, one end away from binding clip assembly 1 of the push rod control part 2163 of push rod 2160 is provided with a lock-button 300, the bindiny mechanism 3 of Endo-GIA also comprises the support set 500 be set on drive division outer tube 230, support set 500 is provided with locking trepanning 510, the locking position of trepanning 510 is corresponding with one end of the connection lock-button 300 of the push rod control part 2163 of push rod 2160, drive division outer tube 230 is provided with the locking moving hole 233 corresponding to locking trepanning 510, the top of lock-button 300 is in the outside of support set 500, the bottom of lock-button 300 is successively through after the locking trepanning 510 of support set 500 and the locking moving hole 233 of drive division outer tube 230, the lower end of lock-button 300 is connected with the push rod control part 2163 of push rod 2160.Lock-button 300 can move by the length direction along drive division outer tube 230 in locking trepanning 510 and locking moving hole 233.
As shown in Figure 1 to Figure 3, enforcement division outer tube 130 is connected with binding clip assembly 1, enforcement division intermediate casing 110 is provided with guide 140, in enforcement division, one end of the close binding clip assembly 1 of pipe 120 is connected with knife bar 150, knife bar 150 is in enforcement division intermediate casing 110, and knife bar 150 is in the gathering sill of guide 140, the head of knife bar 150 is for promoting anastomosis staple in nail bin; Drive division outer tube 230 is connected with driven unit 2 respectively with pipe in drive division 220.
Structure of the present invention is simple, easy to use, the namely detachable and stable connection without the need to instrument.
To sum up, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. the bindiny mechanism of an Endo-GIA, Endo-GIA comprises binding clip assembly (1) and driven unit (2), it is characterized in that, described bindiny mechanism (3) comprising: the execution bar group (100) be connected with described binding clip assembly (1), the group of drive rods (200) be connected with described driven unit (2), described execution bar group (100) is connected with described group of drive rods (200);
Described group of drive rods (200) comprise drive division intermediate casing (210) and be arranged at described drive division intermediate casing (210) inside drive division in pipe (220);
The lateral surface of one end of the close described binding clip assembly (1) of described drive division intermediate casing (210) is arranged at intervals with two arc screens grooves (211); Described arc screens groove (211) extends to the end face of the close described binding clip assembly (1) of described drive division intermediate casing (210);
Described arc screens groove (211) is provided with block arc (212), the gap of described block arc (212) on the length direction of described drive division intermediate casing (210) and between the cell wall of described arc screens groove (211) is clamping gap (213), and the gap of described block arc (212) in the circumference of described drive division intermediate casing (210) and between the cell wall of described arc screens groove (211) is grafting gap (214);
The lateral surface of described drive division intermediate casing (210) is also provided with lock slots (215), described lock slots (215) extends to arc screens groove (211) described in one of them, one resilient push (216) is arranged in described lock slots (215), and described resilient push (216) can move along the length direction of described lock slots (215);
Described execution bar group (100) comprise enforcement division intermediate casing (110) and be arranged at described enforcement division intermediate casing (110) inside enforcement division in pipe (120);
Described enforcement division intermediate casing (110) is provided with two arc bayonet parts (111) corresponding with described block arc (212), described arc bayonet part (111) is inserted in described grafting gap (214), and one end being in described arc screens groove (211) that described arc bayonet part (111) promotes described resilient push (216) is stretched in described lock slots (215); Rotate described enforcement division intermediate casing (110), described arc bayonet part (111) snaps in described clamping gap (213), and one end of the close described binding clip assembly (1) of described resilient push (216) is stretched in described arc screens groove (211), described resilient push (216) blocks described arc bayonet part (111);
Pipe (220) and described enforcement division are interior in described drive division manages (120) and is connected.
2. the bindiny mechanism of Endo-GIA according to claim 1, is characterized in that:
Described resilient push (216) comprises push rod (2160) and spring part (217), described push rod (2160) comprises the push rod stopper (2161), push rod connecting portion (2162) and the push rod control part (2163) that connect successively, the end face of one end away from binding clip assembly (1) of described push rod stopper (2161) is provided with body of rod groove (2164), and one end of described spring part (217) is inserted in described body of rod groove (2164);
Described lock slots (215) comprises the stopper cell body (2151), connecting portion cell body (2152) and the control part cell body (2153) that set gradually,
The cell wall away from described binding clip assembly (1) of described stopper cell body (2151) is provided with spring retainer groove (2154);
Described push rod stopper (2161) is arranged in stopper cell body (2151), one end away from described binding clip assembly (1) of described spring part (217) is inserted in described spring retainer groove (2154), and the length of described push rod stopper (2161) is less than or equal to the length of described stopper cell body (2151);
Described push rod connecting portion (2162) is arranged in described connecting portion cell body (2152), and the length of described push rod connecting portion (2162) is less than the length of described connecting portion cell body (2152);
Described push rod control part (2163) is arranged in described control part cell body (2153), and the length of described push rod control part (2163) is less than the length of described control part cell body (2153).
3. the bindiny mechanism of Endo-GIA according to claim 2, it is characterized in that: be provided with inserting column (2165) in described body of rod groove (2164), described inserting column (2165) is inserted in one end of the close described binding clip assembly (1) of described spring part (217).
4. the bindiny mechanism of Endo-GIA according to claim 2, is characterized in that: one end away from described binding clip assembly (1) of the push rod control part (2163) of described push rod (2160) is provided with a lock-button (300).
5. the bindiny mechanism of Endo-GIA according to claim 1, is characterized in that:
Described arc bayonet part (111) comprise be arranged at described enforcement division intermediate casing (110) away from the bayonet socket contiguous block (1111) on the end face of described binding clip assembly (1), and the clamping projection (1112) be arranged on the end face of described bayonet socket contiguous block (1111), described bayonet socket contiguous block (1111) and described clamping projection (1112) are arc, distance between one end away from described binding clip assembly (1) of described block arc (212) and the end face of described enforcement division intermediate casing (110) equals the length of described clamping projection (1112),
Described push rod stopper (2161) is arc, when described arc bayonet part (111) snaps in described clamping gap (213), on same radial section, the intrados of described clamping projection (1112) corresponds to clamping camber line, the intrados of described push rod stopper (2161) corresponds to stopper camber line, the bottom land of described arc screens groove (211) corresponds to draw-in groove camber line, length and the length equaling described draw-in groove camber line of described clamping camber line and described stopper camber line.
6. the bindiny mechanism of Endo-GIA according to claim 1, is characterized in that:
In described drive division, the end face of the close described binding clip assembly (1) of pipe (220) is provided with embedded groove (221), the cell wall that two of described embedded groove (221) are relative is respectively equipped with block piece (222), between one end away from described binding clip assembly (1) of described block piece (222) and the bottom land of described embedded groove (221), there is spacing gap (223);
In described enforcement division, one end away from described binding clip assembly (1) of pipe (120) is provided with tumbler (121), and described tumbler (121) is provided with locating part (122); The distance being in two sides of width of described locating part (122) is less than the distance between two block pieces (222); The distance being in two sides of short transverse of described locating part (122) is greater than the distance between two block pieces (222).
7. the bindiny mechanism of Endo-GIA according to claim 6, it is characterized in that: two sides being in width of described locating part (122) are plane, the angle between one of them side being in width of described locating part (122) and the interior axis of managing (120) of described enforcement division equals described arc bayonet part (111) and snaps into the angle needing in described clamping gap (213) to rotate.
8. the bindiny mechanism of Endo-GIA according to claim 1, is characterized in that:
Described group of drive rods (200) also comprises the drive division outer tube (230) being set in described drive division intermediate casing (210) outside;
Described execution bar group (100) also comprises the enforcement division outer tube (130) being arranged at and being set in described enforcement division intermediate casing (110) outside;
Described bindiny mechanism (3) also comprises overcoat (400), and described drive division outer tube (230) is connected with described enforcement division outer tube (130) by described overcoat (400).
9. the bindiny mechanism of Endo-GIA according to claim 8, is characterized in that:
One end away from described binding clip assembly (1) of described enforcement division outer tube (130) is provided with and is fastenedly connected groove (131);
One end of the close described binding clip assembly (1) of the medial surface of described overcoat (400) is provided with and is fastenedly connected hole (410);
Described enforcement division outer tube (130) through being fastenedly connected groove (131) and being fastenedly connected hole (410), is connected with described overcoat (400) by securing member successively.
10. the bindiny mechanism of Endo-GIA according to claim 8, is characterized in that:
One end of the close described binding clip assembly (1) of described drive division outer tube (230) is provided with annular groove (231) and connectivity slot (232), described annular groove (231) is arranged along the circumference of the lateral surface being arranged at described drive division outer tube (230), one end of described connectivity slot (232) is communicated with described annular groove (231), and the other end of described connectivity slot (232) extends to the end face of the close described binding clip assembly (1) of described drive division outer tube (230);
One end away from described binding clip assembly (1) of the medial surface of described overcoat (400) is provided with projection piece (420), described projection piece (420) penetrates in described connectivity slot (232), after described overcoat (400) rotates, described projection piece (420) snaps in described annular groove (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510239353.1A CN104856734B (en) | 2015-05-12 | 2015-05-12 | The bindiny mechanism of Endo-GIA |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510239353.1A CN104856734B (en) | 2015-05-12 | 2015-05-12 | The bindiny mechanism of Endo-GIA |
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| CN104856734A true CN104856734A (en) | 2015-08-26 |
| CN104856734B CN104856734B (en) | 2017-03-29 |
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| CN201510239353.1A Active CN104856734B (en) | 2015-05-12 | 2015-05-12 | The bindiny mechanism of Endo-GIA |
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|---|---|
| CN104856734B (en) | 2017-03-29 |
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