CN208838056U - Stapler nail kit component - Google Patents
Stapler nail kit component Download PDFInfo
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- CN208838056U CN208838056U CN201820872820.3U CN201820872820U CN208838056U CN 208838056 U CN208838056 U CN 208838056U CN 201820872820 U CN201820872820 U CN 201820872820U CN 208838056 U CN208838056 U CN 208838056U
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- connector
- push blade
- nail kit
- slot
- stop block
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Abstract
The utility model provides a kind of stapler nail kit component, including by curving executing agency connected nail kit front end assemblies and nail kit aft-end assembly, nail kit aft-end assembly includes shell and is set to the intracorporal pull rod of shell, push blade and safety structure, push blade front end is connect with the cutter of nail kit front end assemblies, pull rod front end is connect with executing agency is curved, housing cavity is that push blade and moving forward and backward for safety structure provide activity space, push blade is located at the top of housing cavity, safety structure includes attachment base and executive component, push blade rear portion is connect with attachment base, executive component is located at the lower part of housing cavity；Push blade is connect across the top for curving executing agency with cutter.The utility model, push blade narrow relative to existing structure, occupy shell small portion space, consequently facilitating safety structure is in the intracorporal arrangement of shell；And after push blade width narrows, when bending, the required resistance overcome reduced, and was bent greater angle in same operating force lower casing.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to a kind of stapler nail kit component.
Background technique
Hysteroscope Endo-GIA is broadly divided into disposable manual hysteroscope Endo-GIA, the cutting of disposable motor-driven hysteroscope at present
Three kinds of stapler, electronic Endo-GIA.Wherein most widely used is electronic stapler, mainly by power handle, connecting rod
Constituted with nail kit component etc., by different transmission mechanisms can be realized cutting coincide, bending and rotation, to adapt to complicated ring
The cutting of different angle coincide in border.
The nail kit component of existing stapler is mainly by the front end assemblies with nail kit and the rear end for being connected with connecting rod
Component composition, front end assemblies and aft-end assembly are rotatablely connected, and drive front end assemblies around rear end group by the pull rod in aft-end assembly
Part rotation, to realize the bending and angular adjustment of nail kit component.It in the prior art, is the thrust for guaranteeing push blade, push blade
Width it is larger, occupy the entire space of shell, middle part offers slot along the longitudinal direction, since push blade width is larger, when bending
The operating force needed is big；Furthermore it takes up space larger, is not easy to safety structure in the intracorporal arrangement of shell, and existing safety structure is multiple
Miscellaneous, component is various, and assembly is cumbersome, and the failure risk of executing agency is big.
Utility model content
In view of the above deficiencies of the prior art, the purpose of this utility model is to provide a kind of stapler nail kit groups
Part, rational deployment is compact-sized, reduces operating force required when push blade bending.
In order to achieve the above objects and other related objects, technical solutions of the utility model are as follows:
A kind of stapler nail kit component, including by curving the connected nail kit front end assemblies of executing agency and nail kit rear end group
Part, the nail kit aft-end assembly include shell and are set to the intracorporal pull rod of shell, push blade and safety structure, the push blade
Front end is connect with the cutter of nail kit front end assemblies, and pull rod front end is connect with the executing agency that curves, and the housing cavity is to push away
Blade and safety structure move forward and backward offer activity space, and the push blade is located at the top of housing cavity, the insurance knot
Structure includes attachment base and executive component, and the push blade rear portion is connect with attachment base, and the executive component is located at housing cavity
Lower part；The push blade passes through the top for curving executing agency and connect with the cutter.
Using above-mentioned arragement construction, push blade narrows relative to existing structure, only the half of existing structure, occupies shell
Small portion space, thus by more space to be preserved to safety structure, convenient for safety structure in the intracorporal arrangement of shell；And
After push blade width narrows, when bending, the required resistance overcome reduced, and was bent greater angle in same operating force lower casing.The cloth
Setting structure is upper and lower distribution mode, easy to assembly, mutually non-interference, compact-sized.
Further, the shell includes upper casing and lower casing, and the executive component includes stop block and elastic retaining elements, institute
Stop block rotational installation is stated on attachment base, the elastic retaining elements connect with stop block, press to the free end of stop block
The lower casing bottom, the attachment base, stop block are axially moved with push blade along shell under percussion force effect, on the lower casing
It is provided with deflecting structure and bit-stopping structure, is completed in push blade back off procedure in shot, stop block is in deflecting structure function
Lower rotation changed course, and be against on the bit-stopping structure in secondary percussion, prevent push blade from travelling forward.
In shot, stop block travels forward with attachment base and push blade, and stop block tilts backwards, and can pass through institute
Bit-stopping structure is stated, is completed in push blade back off procedure in shot, by deflecting structure stop block is rotated to turning forward
Tiltedly, it again may be by the bit-stopping structure when retracting, and when secondary percussion travels forward, it is supported since it turns forward
It on bit-stopping structure, travels forward to limit push blade, that is, prevents secondary percussion, realize insurance function.Safety structure master
It to be made of attachment base, lower casing, stop block and elastic retaining elements etc., components are few, and structure is simple, convenient for assembly.Work is former
Reason is simple, is contradicted and is limited by the changed course realization of stop block and bit-stopping structure, and the risk of reducing mechanism failure guarantees mechanism operation
Stability.
Further, the deflecting structure is the escape groove being opened on the lower casing, is firing back off procedure for the first time
Described in stop block protrude into escape groove, escape groove rear cell wall effect under rotate forward, and be more than stop block it is vertical with lower casing
Position.
Further, the rear on the lower casing positioned at deflecting structure is provided with limiting slot, and the limiting slot antetheca forms institute
Bit-stopping structure is stated, the limiting slot rear wall forms the stop bit point that stop block moves backward.
Further, the first sliding groove corresponding to stop block and corresponding to attachment base is provided in the axial direction on the lower casing
Two sliding slots, the stop block can be moved forward and backward along the first sliding groove, and the attachment base is located in second sliding slot, and can be along second
Sliding slot moves forward and backward, and the position of the first sliding groove is lower than the second sliding slot；The second sliding slot slot bottom and push blade lower edge
The position limiting structure of limitation stop block slewing area is formed, is provided with stop part on the stop block or elastic retaining elements, only
In the block rotary course of position, the stop part, which is against on push blade or second sliding slot slot bottom, realizes limit.
Further, the push blade rear end has hook part, forms extension in the phase of push blade rear portion, the extension protrudes into
In attachment base, and it is against on attachment base when push blade travels forward, transmitting thrust.
Further, the executing agency that curves includes connector and the first connector and second hinged with connector respectively
Connector, the first connector are connect with nail kit front end assemblies, and the second connector is connected with nail kit aft-end assembly, the first connector and the second connector
With the curved portion being oppositely arranged, it is arranged with teeth in the curved portion, the first connector and the second connector pass through the tooth engagement, institute
It states pull rod and connector is rotatablely connected.
First connector and the second connector are hinged with connector respectively, and pull rod is hinged with connector；Connect when being driven by pull rod
When fitting is rotated relative to the second connector, the first connector is also rotated with connector, while relative under the action of engaging tooth
Two connectors rotation, so that the first connector revolves simultaneously and rotation, to increase in the case where rod stroke is certain
Nail kit curves angle.
Further, the connector includes connector sleeve and sequentially connected support base, supporting block and briquetting up and down, described
Briquetting, supporting block and support base are mounted in the connector sleeve, and the junction of first connector and the second connector is in support
Between block and briquetting, first connector and the second connector are rotatablely connected with supporting block respectively, offer branch on the support base
Slot is supportted, the push blade passes through the support slot.
Further, the support slot is gradually expanded by centre to both ends, the cell wall of the support slot be back to arc knot
Structure, is provided with support frame on the outside of the push blade, support frame both ends respectively be set to nail kit front end assemblies and nail kit rear end group
On part, support frame as described above and push blade pass through the support slot, when nail kit front end assemblies curve, are against in the middle part of support frame as described above
On the arcuate structure.
When stapler execution curves movement, stress at support frame front and back end and middle part three, compared in the middle part of traditional structure
Unsupported structure can guarantee support frame and the curved uniformity of push blade, avoid local buckling is excessive from causing surgical procedure
It has some setbacks.Support slot be back to arcuate structure, can guarantee in positive contraflexure to effective support in the middle part of support frame, and
Arcuate structure support effect is more preferable.
Further, strip-shaped hole is offered on support frame as described above along its length, the strip-shaped hole is thick through support frame as described above
Direction is spent, the depth of the support slot is more than or equal to the width of the support frame and push blade that are located in support slot.
As described above, the beneficial effects of the utility model are: the push blade of the utility model narrows relative to existing structure,
The only half of existing structure occupies shell small portion space, thus by more space to be preserved to safety structure, just
In safety structure in the intracorporal arrangement of shell；And after push blade width narrows, when bending, the required resistance overcome reduced, same
Operating force lower casing is bent greater angle.The arragement construction is upper and lower distribution mode, easy to assembly, mutually non-interference, compact-sized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of nail kit component；
Fig. 2 and Fig. 3 is nail kit component by intermediate cross-sectional view up and down；
Fig. 4 is the explosive view of nail kit component；
Fig. 5 is the explosive view for curving executing agency Yu push blade and pull rod；
Fig. 6 and Fig. 7 is the scheme of installation for curving executing agency and push blade；
Fig. 8 is the configuration schematic diagram of safety structure and lower casing；
Fig. 9 is A-A direction view in Fig. 1；
Figure 10 is B-B direction view in Fig. 1；
Figure 11 is the structural schematic diagram that stop block travels forward with attachment base and push blade when firing for the first time；
Figure 12 is to fire in rear position-arresting block back off procedure to show by rotating the structure of deflecting when deflecting structure forward for the first time
It is intended to；
Stop block is against the schematic diagram that push blade is prevented to advance on bit-stopping structure when Figure 13 is second of percussion.
Piece mark explanation
100- nail kit front end assemblies；101- cutter；
200- curves executing agency；201- support base；202- supporting block；203- briquetting；204- connector sleeve；205- first connects
Head；The second connector of 206-；207- support slot；208- connecting column；209- central axis；210- centre bore；211- escape port；212-
Retention bead；213- limited step；214- tooth；The inclined-plane 215-；
300- nail kit aft-end assembly；301- upper casing；302- lower casing；303- push blade；304- pull rod；305- attachment base；
306- stop block；307- elastic retaining elements；308- pin shaft；309- support frame；310- strip-shaped hole；311- escape groove；312- limit
Position slot；313- limiting slot antetheca；314- limiting slot rear wall；315- extension；The hook part 316-；317- first sliding groove；318- second
Sliding slot；319- mounting groove；320- stop part.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Front and back position described in the utility model is reference, a Fang Weiqian of the stapler towards patient with stapler use state
Side is rear away from patient.
Embodiment
As shown in Figures 1 to 4, a kind of stapler nail kit component, before by curving the connected nail kit of executing agency 200
Component 100 and nail kit aft-end assembly 300 are held, the nail kit aft-end assembly 300 is including shell and is set to the intracorporal pull rod of shell
304, push blade 303 and safety structure, housing rear end are the interconnecting piece being connected with stapler connecting rod, and the shell includes upper casing
301 and lower casing 302, nail kit front end assemblies 100 include nail bin, nail anvil and cutter 101 etc.；303 front end of push blade and nail kit
The cutter 101 of front end assemblies 100 connects, and 304 front end of pull rod is connect with the executing agency 200 that curves, and housing cavity is push broach
Piece 303 and safety structure move forward and backward offer activity space, and the push blade 303 is located at the top of housing cavity, the guarantor
Dangerous structure includes attachment base 305 and executive component, and 303 rear portion of push blade is connect with attachment base 305, and can synchronize front and back and move
Dynamic, the executive component is located at the lower part of housing cavity；The push blade 303 passes through the top for curving executing agency 200
It is connect with the cutter 101.
Using above-mentioned arragement construction, push blade 303 is the string configuration that section is rectangle, is become relative to existing structure
Narrow, the only half of existing structure occupies shell small portion space, to give more space to be preserved to insurance knot
Structure, convenient for safety structure in the intracorporal arrangement of shell；And after 303 width of push blade narrows, when bending, the required resistance overcome reduced,
Greater angle is bent under same operating force.The arragement construction is upper and lower distribution mode, easy to assembly, mutually non-interference, knot
Structure is compact.
Wherein as shown in Figures 5 to 7, described to curve executing agency 200, for realizing curving for nail kit comprising first
Connector 205, the second connector 206 and the connector for connecting the first connector 205 and the second connector 206, wherein the first connector
205 connect with nail kit front end assemblies 100, and the second connector 206 is connect with nail kit aft-end assembly 300；First connector, 205 He
Second connector 206 is hinged with connector respectively, and the hinged place of the first connector 205 and connector is the first center of rotation, and second connects
First 206 with the hinged place of connector be the second center of rotation, and the first center of rotation and the second center of rotation are separated by a certain distance,
And first connector 205 and the second connector 206 there is the curved portion being oppositely arranged, be correspondingly arranged with teeth 214 in the curved portion of the two,
First connector 205 and the second connector 206 are engaged by the tooth 214, be provided on the connector for stapler pull rod
The interconnecting pieces of 304 rotation connections, are third center of rotation at the rotation connection of connecting rod and pull rod 304, third center of rotation and
Second center of rotation is separated by a certain distance；That is the second center of rotation is staggered with third center of rotation, and to form torque, driving connects
Fitting rotation.
First connector 205 and the second connector 206 are hinged with connector respectively, and pull rod 304 and connector are hinged；Due to second
Connector 206 is fixed on nail kit aft-end assembly 300, and when passing through 304 drive connection part of pull rod, connector is around the second center of rotation phase
Second connector 206 is rotated, the first connector 205 is also rotated around the second center of rotation with connector together, while mutually being nibbled
It is rotated around the first center of rotation relative to the second connector 206 under the action of the tooth 214 of conjunction, so that the first connector has simultaneously
There are two the superposition of movement is curved, i.e., there are two to curve movement relative to nail kit aft-end assembly 300 for nail kit front end assemblies 100
Superposition, thus pull rod 304 move forward and backward stroke it is certain in the case where, increase nail kit and curve angle.And it curves angle model
Enclosing is -90 ° to+90 °, meets the operation demand that wide-angle curves, and adapts to the cutting of complex environment tissue and coincide.
Preferably, the interconnecting piece is the connecting column 208 or connecting hole being arranged on connector.Accordingly, pull rod 304
Front end is equipped with the hole cooperated with connecting column 208 or the axis with connecting hole cooperation.It is preferably connecting column 208 in this example, before pull rod 304
End cap is on connecting column 208.
Preferably, the rear portion of first connector 205 and the front of the second connector 206 are in truncated cone-shaped structure, it is described
Tooth 214 is arranged on the opposite side of the truncated cone-shaped structure.The front of first connector 205 is the first connecting pin, is used for and nail kit
Front end assemblies 100 are fixed, and the front of the second connector 206 is second connection end, for fixed with nail kit aft-end assembly 300.
In one embodiment, in being respectively arranged in the middle part of the truncated cone-shaped structure of the first connector 205 and the second connector 206
Heart hole 210, the connector include supporting block 202, and there are two central axis 209, the first connector 205 is logical for setting in supporting block 202
It crosses one group of centre bore 210 and central axis 209 and supporting block 202 is rotatablely connected, the second connector 206 passes through another group of centre bore 210
It is rotatablely connected with central axis 209 and supporting block 202.
In another embodiment, first connector 205 and the second connector 206 are respectively arranged with central axis 209, described
There are two centre bores 210 for setting in supporting block 202；First connector 205, the second connector 206 pass through with supporting block 202 respectively
One group of central axis 209 and centre bore 210 are rotatablely connected.
Preferably, being provided on the first connector 205 and the second connector 206, for limiting, the two is maximum to relatively rotate angle
Position limiting structure.In this example position limiting structure be arranged in the first connector 205 and the second connector 206 truncated cone-shaped structure two sides it is oblique
Face 215 contradicts limit by the inclined-plane 215 matched in 205 positive and negative rotation of the first connector to maximum position.
For the stability cooperated in the first connector 205 of guarantee, 206 rotation process of the second connector, its longitudinal oscillation is prevented；Institute
Stating connector further includes briquetting 203, offers connecting hole on briquetting 203, briquetting 203 and supporting block 202 by connecting hole and in
Mandrel 209 fastens, and the interconnecting piece of the first connector 205 and the second connector 206 is clipped in the middle.
It on this basis, is the support convenient for stapler push blade 303, connector further includes support base 201, support base
The support slot 207 passed through for push blade 303 is offered on 201, the push blade 303 passes through the support slot 207, briquetting
203 are located at the side of supporting block 202, and support base 201 is located at the other side of supporting block 202, the support base 201 and the supporting block
202 are connected by pin shaft with pin hole.
Preferably, the setting of connecting column 208 on support base 201, is provided in the supporting block 202 and connecting column
208 corresponding escape ports 211 so that pull rod 304 around connecting column 208 rotate during, will not be produced with supporting block 202
Raw interference.In another embodiment, connecting column 208 also can be set in supporting block 202 or briquetting 203.
Further, for convenient for the assembly of the entirety of connector, the executing agency 200 that curves further includes connector sleeve 204, connection
204 sets of set is outside connector；I.e. briquetting 203, supporting block 202 and support base 201 are mounted in the connector sleeve 204.
Preferably, the width of support slot 207 in the longitudinal direction is gradually expanded by centre to both ends, the support slot 207
Cell wall be back to arcuate structure, be provided with support frame 309 on the outside of push blade 303,309 front and back end of support frame is respectively arranged at
On nail kit front end assemblies 100 and nail kit aft-end assembly 300, support frame as described above 309 and push blade 303 pass through the support slot 207,
When nail kit front end assemblies 100 are bent, it is against on the arcuate structure in the middle part of support frame as described above 309.The structure is held in stapler
When row curves movement, stress at 309 front and back end of support frame and middle part three, compared to structure unsupported in the middle part of traditional structure, energy
Enough guarantee support frame 309 and the curved uniformity of push blade 303, avoids local buckling is excessive surgical procedure is caused to have some setbacks.Branch
Support slot 207 be back to arcuate structure, can guarantee effective support to the middle part of support frame 309, and arc in positive contraflexure
Shape structural support effect is more preferable.
Preferably, 309 both ends of support frame as described above are movably installed in nail kit front end assemblies 100 and nail kit aft-end assembly 300
It is interior, and can be moved forward and backward relative to nail kit front end assemblies 100 and nail kit aft-end assembly 300, support frame 309 can relatively move, subtract
Small bending resistance；Restricted support is set between the nail kit front end assemblies 100 and nail kit aft-end assembly 300 and support frame 309
The position limiting structure of the back-and-forth motion range of frame 309.
In this example, position limiting structure includes the limited step being set on nail kit front end assemblies 100 and nail kit aft-end assembly 300
213 and the retention bead 212 of 309 end of support frame is set, retention bead 212 is kept off on the limited step 213, from
And it limits support frame 309 and is moved forward and backward range.For convenient for assembly, limited step 213 is set to 205 front of the first connector in this example
With 206 rear portion of the second connector.
Preferably, support slot 207 two cell walls formed hyperbolic configuration, the crooked radian of two cell walls is symmetrical, guarantee just,
Supporting role is identical with bending uniformity when contraflexure.
As a further preference, engraved structure is provided on support frame 309.Engraved structure reduces the curved of support frame 309
Bent resistance.
Support frame 309 is support chip in this example, offers strip-shaped hole 310, strip-shaped hole along its length on support frame 309
310 run through 309 thickness direction of support frame.The depth of the support slot 207 is more than or equal to the support frame being located in support slot 207
309 and push blade 303 width.Guarantee that the support frame 309 and push blade 303 being located in support slot 207 are effectively supported.
The depth of the support slot 207 is more than or equal to the width of the support frame 309 and push blade 303 that are located in support slot 207
Degree.Guarantee that the support frame 309 and push blade 303 being located in support slot 207 are effectively supported.
As shown in Fig. 8 to Figure 10, the executive component includes stop block 306 and elastic retaining elements 307, wherein push broach
Piece 303 is set to 302 inside of lower casing, and the attachment base 305 is connected with 303 rear portion of push blade, and can be synchronous with push blade 303
It is moved forward and backward；The stop block 306 can front and back be rotatably mounted on attachment base 305, elastic retaining elements 307 and stop block
306 connections, make the end of stop block 306 press to the lower casing 302 in the initial state, contact with lower casing 302, in percussion masterpiece
With the lower attachment base 305, stop block 306 with push blade 303 along lower casing 302 axial (length direction) movement, the lower casing 302
On be provided with deflecting structure and bit-stopping structure, when original state, stop block 306 is tilted backwards, when firing first time, stop block
306 can be by bit-stopping structure and deflecting structure, and does not change direction；It is completed in shot, in 303 back off procedure of push blade,
Stop block 306 is rotated forward under deflecting structure function to turning forward, and is against on the bit-stopping structure in secondary percussion,
Push blade 303 is prevented to travel forward.
In shot, stop block 306 travels forward with attachment base 305 and push blade 303, and stop block 306 retreats
Tiltedly, it can complete to stop by deflecting structure in 303 back off procedure of push blade in shot by the bit-stopping structure
The position rotation of block 306 again may be by the bit-stopping structure when retracting to turning forward, and travel forward in secondary percussion
When, it is against on bit-stopping structure since it turns forward, travels forward to limit push blade 303, that is, prevent secondary percussion,
Realize insurance function.Safety structure is mainly by groups such as attachment base 305, lower casing 302, stop block 306 and elastic retaining elements 307
At components are few, and structure is simple, convenient for assembly.Working principle is simple, passes through the changed course realization of stop block 306 and bit-stopping structure
Limit is contradicted, the risk of reducing mechanism failure guarantees the stability of mechanism operation.
Preferable scheme is that stop block 306 and elastic retaining elements 307 are respectively positioned between lower casing 302 and push blade 303
In space, 303 rear end of push blade has hook part 316, and 303 rear portion of push blade is inwardly formed extension 315, opens on attachment base 305
Equipped with groove corresponding with extension, extension 315 is protruded into attachment base 305, and company is against when push blade 303 travels forward
On joint chair 305, transmitting thrust.Wherein, hook part 316 pulls push blade 303 to retract, is driving for connecting with rear executing agency
When dynamic push blade 303 is advanced, executing agency is acted on attachment base 305, is made by the abutting of attachment base 305 and extension 315
With driving push blade 303 to advance, thus stress when guaranteeing push broach.
Preferable scheme is that forming the limit of limitation 306 slewing area of stop block between the lower casing 302 and push blade 303
Bit architecture is defined the range rotated before and after stop block 306 by push blade 303 and lower casing 302.
Preferable scheme is that being provided in the axial direction with the first sliding groove 317 corresponding to stop block 306 on the lower casing 302, only
Position block 306 is moved forward and backward along the first sliding groove 317, on the lower casing 302 along be axially arranged with corresponding to attachment base 305 the
Two sliding slots 318, the attachment base 305 are supported in second sliding slot 318, and can be moved forward and backward along second sliding slot 318, and first is sliding
The position of slot 317 is lower than the second sliding slot 318.First sliding groove 317 and second sliding slot 318 play limit and guiding role.
Preferable scheme is that the deflecting structure is the escape groove 311 being opened on lower casing 302, the depth of escape groove 311
Stop block 306 should be met and do not touch 311 bottom of escape groove when rotating vertical to lower casing 302, retracted having fired for the first time
Cheng Zhong, stop block 306 is fallen into escape groove 311, during continuing rollback, due to the blocking of the rear cell wall of escape groove 311
It acts on and rotates forward, and be more than the position vertical with lower casing 302 of stop block 306, i.e., become turning forward from tilting backwards, and
The compression with lower casing 302 is kept in the case where elastic retaining elements 307 act on.
Preferably, the rear on the lower casing 302 positioned at deflecting structure is provided with limiting slot 312, limiting slot in this example
Antetheca 313 forms the bit-stopping structure, and the limiting slot rear wall 314 forms the stop bit point that stop block 306 moves backward, limitation
The distance that push blade 303 moves backward.Wherein limiting slot 312 is lower than the first sliding groove 317, and escape groove 311 is lower than limiting slot
312。
Further embodiment is that attachment base 305 is column structure, offers mounting groove 319 thereon, stop block 306 passes through
For the rotational installation of pin shaft 308 in the mounting groove 319 of attachment base 305, mounting groove 319 is stretched out in end.The second sliding slot 318
Slot bottom and the position limiting structure that limitation 306 slewing area of stop block is formed with 303 edge of push blade, the stop block 306 or elasticity
Stop part 320 is provided in holding element 307, in 306 rotary course of stop block, the stop part 320 is against push blade 303
Or limit is realized on 318 slot bottom of second sliding slot.
The elastic retaining elements 307 are torsional spring or elastic slice, and preferably elastic slice, elastic slice and stop block 306 is fixed in this example
Connection, stop part 320 are extended to form by elastic slice end.
To pass through the bit-stopping structure when first time, percussion travelled forward convenient for stop block 306, the stop block 306 is certainly
It is inclined-plane or cambered surface by holding the one side (i.e. front side) towards lower casing 302.
The motion process of push blade 303 and stop block 306 is sketched with reference to the accompanying drawing, arrow institute in Fig. 9-Figure 11
Finger direction is 303 direction of motion of push blade: as shown in Figure 1, stop block 306 is located in limiting slot 312 when original state；Such as Figure 11
Shown, during first time fires, applying thrust to attachment base 305 makes push blade 303 advance, and stop block 306 is with attachment base
305 travel forward and climb over the limiting slot antetheca 313 and escape groove 311, move forward；As shown in figure 12, first
After the completion of secondary percussion, pulling force is applied to hook part 316, stop block 306 moves backward with push blade 303 and attachment base 305, works as movement
It rotates by a certain angle forward under the action of elastic slice after to escape groove 311, and after escape groove 311 under the barrier effect of cell wall,
So that stop block 306 rotates further along, and turns over the position vertical with lower casing 302, to turn forward, and continue backward
Move to initial position；As shown in figure 13, in the second percussion, since stop block 306 has turned forward, stop block 306 is in bullet
The elastic force effect of piece is lower to keep compressing with lower casing 302, when applying thrust to attachment base 305, before stop block 306 can be against limiting slot
On wall 313, limiting slot 312 can not be crossed, to prevent secondary percussion, it is therefore prevented that maloperation.
Any person skilled in the art all can be under the spirit and scope without prejudice to the utility model, to above-described embodiment
Carry out modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed in the utility model
Spirit with technical idea under all equivalent modifications or change for being completed, should be contained by the claim of the utility model
Lid.
Claims (10)
1. a kind of stapler nail kit component, including by curving the connected nail kit front end assemblies of executing agency and nail kit rear end group
Part, the nail kit aft-end assembly include shell and are set to the intracorporal pull rod of shell, push blade and safety structure, the push blade
Front end is connect with the cutter of nail kit front end assemblies, and pull rod front end is connect with the executing agency that curves, it is characterised in that: the shell
Intracoelomic cavity is that push blade and moving forward and backward for safety structure provide activity space, and the push blade is located at the top of housing cavity,
The safety structure includes attachment base and executive component, and the push blade rear portion is connect with attachment base, and the executive component is located at
The lower part of housing cavity；The push blade passes through the top for curving executing agency and connect with the cutter.
2. stapler nail kit component according to claim 1, it is characterised in that: the shell includes upper casing and lower casing, institute
Stating executive component includes stop block and elastic retaining elements, and the stop block rotational installation is described to elastically keep on attachment base
Element is connect with stop block, and the free end of stop block is made to press to the lower casing bottom, percussion force effect under the attachment base, only
Position block is axially moved with push blade along shell, is provided with deflecting structure and bit-stopping structure on the lower casing, is completed in shot
In push blade back off procedure, stop block rotates changed course under deflecting structure function, and the stop bit knot is against in secondary percussion
On structure, push blade is prevented to travel forward.
3. stapler nail kit component according to claim 2, it is characterised in that: the deflecting structure be opened in it is described under
Escape groove on shell protrudes into escape groove having fired stop block described in back off procedure for the first time, makees in the rear cell wall of escape groove
It is rotated forward under, and is more than the stop block position vertical with lower casing.
4. stapler nail kit component according to claim 2, it is characterised in that: after being located at deflecting structure on the lower casing
Side is provided with limiting slot, and the limiting slot antetheca forms the bit-stopping structure, and the limiting slot rear wall forms stop block and moves back
Dynamic stop bit point.
5. stapler nail kit component according to claim 2, it is characterised in that: be provided in the axial direction with correspondence on the lower casing
First sliding groove in stop block and the second sliding slot corresponding to attachment base, the stop block can be transported before and after the first sliding groove
Dynamic, the attachment base is located in second sliding slot, and can move forward and backward along second sliding slot, and the position of the first sliding groove is lower than described
Second sliding slot；The second sliding slot slot bottom and push blade lower edge form the position limiting structure of limitation stop block slewing area, described to stop
It is provided with stop part on position block or elastic retaining elements, in stop block rotary course, the stop part is against push blade or the
Limit is realized on two sliding slot slot bottoms.
6. stapler nail kit component according to claim 1, it is characterised in that: the push blade rear end has hook part, pushes away
Blade rear portion is inwardly formed extension, and the extension protrudes into attachment base, and attachment base is against when push blade travels forward
On, transmitting thrust.
7. stapler nail kit component according to claim 1, it is characterised in that: the executing agency that curves includes connector
And the first connector and the second connector with connector hingedly, the first connector are connect with nail kit front end assemblies respectively, the second connector
It is connected with nail kit aft-end assembly, the first connector and the second connector have the curved portion being oppositely arranged, and are provided in the curved portion
Tooth, the first connector and the second connector are rotatablely connected by the tooth engagement, the pull rod and connector.
8. stapler nail kit component according to claim 7, it is characterised in that: the connector include connector sleeve and on
Under sequentially connected support base, supporting block and briquetting, the briquetting, supporting block and support base be mounted in the connector sleeve, institute
The junction of the first connector and the second connector is stated between supporting block and briquetting, first connector and the second connector respectively with
Supporting block is rotatablely connected, and support slot is offered on the support base, and the push blade passes through the support slot.
9. stapler nail kit component according to claim 8, it is characterised in that: the support slot by centre to both ends gradually
Expansion, the cell wall of the support slot be back to arcuate structure, be provided with support frame, support frame both ends point on the outside of the push blade
It is not set on nail kit front end assemblies and nail kit aft-end assembly, support frame as described above and push blade pass through the support slot, in nail kit
When front end assemblies curve, it is against on the arcuate structure in the middle part of support frame as described above.
10. stapler nail kit component according to claim 9, it is characterised in that: opened along its length on support frame as described above
Equipped with strip-shaped hole, the strip-shaped hole runs through support frame as described above thickness direction, and the depth of the support slot, which is more than or equal to, is located at support
The width of support frame and push blade in slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820872820.3U CN208838056U (en) | 2018-06-06 | 2018-06-06 | Stapler nail kit component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820872820.3U CN208838056U (en) | 2018-06-06 | 2018-06-06 | Stapler nail kit component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208838056U true CN208838056U (en) | 2019-05-10 |
Family
ID=66351949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820872820.3U Active CN208838056U (en) | 2018-06-06 | 2018-06-06 | Stapler nail kit component |
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| Country | Link |
|---|---|
| CN (1) | CN208838056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559029A (en) * | 2018-06-06 | 2019-12-13 | 重庆西山科技股份有限公司 | Stapler staple cartridge assembly |
| WO2021043001A1 (en) * | 2019-09-06 | 2021-03-11 | 康奇舒宁(苏州)医疗科技有限公司 | Jaw opening angle mechanism for endoscopic cutter stapler |
-
2018
- 2018-06-06 CN CN201820872820.3U patent/CN208838056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559029A (en) * | 2018-06-06 | 2019-12-13 | 重庆西山科技股份有限公司 | Stapler staple cartridge assembly |
| WO2021043001A1 (en) * | 2019-09-06 | 2021-03-11 | 康奇舒宁(苏州)医疗科技有限公司 | Jaw opening angle mechanism for endoscopic cutter stapler |
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