CN107049402A - The Quick assembling-disassembling structure of the execution head of surgery circular staplers - Google Patents
The Quick assembling-disassembling structure of the execution head of surgery circular staplers Download PDFInfo
- Publication number
- CN107049402A CN107049402A CN201710345537.5A CN201710345537A CN107049402A CN 107049402 A CN107049402 A CN 107049402A CN 201710345537 A CN201710345537 A CN 201710345537A CN 107049402 A CN107049402 A CN 107049402A
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- CN
- China
- Prior art keywords
- component
- nail
- anvil
- extension
- nail bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
Abstract
A kind of Quick assembling-disassembling structure of the execution head of surgery circular staplers, realize that nail bin frame is snapped connection component with extension and is locked together, simultaneously, circular cone inclined-plane on nail bin frame is mutually drawn close with the tubular lip on extension, when pinching the tubular lip on flat extension, tubular lip is moved along the circular cone inclined-plane on nail bin frame, so that tubular lip promotes and is snapped nail bin frame and extension that connection component is locked together and is separated from each other；Realize that anvil pull rod is axially snapped connection with nail anvil extension bar to be locked together, meanwhile, the circular cone inclined-plane in anvil pull rod is mutually drawn close with the tubular lip on nail anvil extension bar.When pinching the tubular lip on clasp nail anvil extension bar, tubular lip is moved along the circular cone inclined-plane in anvil pull rod, so that the promotion of tubular lip is axially snapped connection the anvil pull rod being locked together and nail anvil extension bar is separated from each other.The present invention reaches the purpose of rapid-assembling/disassembling nail bin groupware and nail-anvil assembly so that surgery circular staplers convenience more secure when used, cost of use is lower.
Description
Technical field
The present invention relates to the Quick assembling-disassembling structure of the execution head of various surgery circular staplers, various one are related specifically to
Secondary property is also related specifically to various use repeatly surgery circles using the Quick assembling-disassembling structure of the execution head of surgery circular staplers
The Quick assembling-disassembling structure of the execution head of shape stapler, relates more specifically to the fast of the execution head of various hysteroscope surgery circular staplers
Fast assembling-disassembling structure, also relates more specifically to the Quick assembling-disassembling structure to the execution head of various Motorized surgical circular staplers, also more special
It is not related to the Quick assembling-disassembling structure of the execution head for the surgery circular staplers that various operating robots are used.
Background technology
Various surgery circular staplers are used to replace using the operation that manual needlework are identical in surgical operation, extensive
Ground is used for the operation such as human body alimentary canal organ and apparatus urogenitalis official rank organ and the end to end anastomosis of tissue and end-to-side anastomosis, especially
Suitable for appearing the anastomosis operation with operating difficulties, it is possible to reduce operating time, surgical quality is improved.
The execution head for the surgery circular staplers introduced in United States Patent (USP) US20130072955A1 includes nail bin groupware and nail
Anvil assembly.Head is performed to be arranged on the extension of surgery circular staplers.Nail bin groupware includes nail bin, anastomosis staple, cutter, pushed away
Follow closely block and nail bin frame.Nail bin is fixedly connected with nail bin frame.Anastomosis staple, cutter and ejector pin block are installed in nail bin and nail bin frame.
Ejector pin block promotes anastomosis staple and cutter to be moved in nail bin.Nail bin frame is connected with the extension in surgery circular staplers.Push away
Nail block is connected with the trigger shaft in the extension in surgery circular staplers.Nail-anvil assembly includes nail anvil, knife anvil and nail anvil extension bar.
Nail anvil, knife anvil and nail anvil extension bar link together.Nail anvil extension bar and the anvil pull rod in the extension in surgery circular staplers
Snap connection.The first unsatisfactory place of the execution head of above-mentioned surgery circular staplers is, the nail bin frame in nail bin groupware
It is fixedly connected with the extension in surgery circular staplers to be non-removable, therefore, often completing once to coincide is accomplished by changing
Whole surgery circular staplers, and in use, discovery performs the off-gauge conjunction requirement of head, it is also desirable to will perform head
Contaminated surgery circular staplers are whole changing, cause cost of use too high.The execution head of above-mentioned surgery circular staplers
Second of unsatisfactory place be, in order to ensure organ and tissue that nail-anvil assembly stretchy is to be anastomosed, it is desirable to nail-anvil assembly
In nail anvil extension bar and extension in anvil pull rod between snap connection and be resistant to enough pulling force, due to being needed in operation
Repeatedly to assemble and disassemble nail-anvil assembly, operation is interval limited, nail anvil extension bar is dismantled from anvil pull rod needs larger power again, therefore
It is easy to strike the tissue of the peripheral organs in operation interval during dismounting nail anvil extension bar, human body is damaged.
A kind of execution head for the surgery circular staplers introduced in United States Patent (USP) US20150320420A1, employs three kinds
The detachable structure of nail bin groupware so that nail bin groupware can be changed in surgical procedure.The first is the nail in nail bin groupware
There are four L-shaped grooves on the frame of storehouse, there are four projections on extension, torsionspring is connected between nail bin frame and extension, when prolonging
After stretching in four L-shaped grooves on four projections insertion nail bin frame on pipe, nail bin frame and extension are connected to one by torsionspring
Rise.Second is the snapping connection using the small inclination for being easy to assembly and disassembly between the nail bin frame and extension of nail bin groupware.3rd
Plant is to use to be threadedly coupled between the nail bin frame and extension of nail bin groupware.The nail bin groupware of above-mentioned surgery circular staplers
The unsatisfactory place of the detachable structure of three kinds of nail bin groupwares is, in operation, and the execution head of surgery circular staplers is often
To move and rotate in the organ lumen of the size relative compact with performing head, nail bin groupware is likely to result in operating process
It is mutually displaced or even departs between extension.
By above-mentioned it will be clear that the assembling-disassembling structure of the execution head of known surgery circular staplers also needs to make further
Improvement so that the assembling-disassembling structure convenience more secure when used of the execution head of surgery circular staplers, cost of use is lower.
The content of the invention
The first object of the present invention is a kind of Quick assembling-disassembling structure for the execution head for proposing surgery circular staplers, realizes
Nail bin frame is snapped connection component with extension and is locked together, meanwhile, the circular cone inclined-plane on nail bin frame and the pipe on extension
Shape lip is mutually drawn close, when pinching the tubular lip on flat extension, and tubular lip is moved along the circular cone inclined-plane on nail bin frame, from
And tubular lip promotes and is snapped nail bin frame and extension that connection component is locked together and is separated from each other.The present invention reaches quickly
Assemble and disassemble the purpose of nail bin groupware so that surgery circular staplers convenience more secure when used, cost of use is lower.
The second object of the present invention is a kind of Quick assembling-disassembling structure for the execution head for proposing surgery circular staplers, realizes
Anvil pull rod is axially snapped connection with nail anvil extension bar and is locked together, meanwhile, the circular cone inclined-plane in anvil pull rod connects with nail anvil
Tubular lip on bar is mutually drawn close.When pinching the tubular lip on clasp nail anvil extension bar, tubular lip is along the circle in anvil pull rod
Inclined-plane movement is bored, so that tubular lip is promoted snaps connection the anvil pull rod being locked together and nail anvil extension bar phase by the axial direction
Mutually separation.The present invention reaches the purpose of rapid-assembling/disassembling nail-anvil assembly so that surgery circular staplers convenience more secure when used, makes
It is lower with expense.
The purpose of the present invention is achieved through the following technical solutions：
The execution head of the surgery circular staplers of the present invention includes nail bin groupware and nail-anvil assembly.Perform head and be arranged on surgery
On the extension of circular staplers.Nail bin groupware includes nail bin, anastomosis staple, cutter, ejector pin block and nail bin frame.Nail bin and nail bin
Frame is fixedly connected.Anastomosis staple, cutter and ejector pin block are installed in nail bin and nail bin frame.Ejector pin block promotes anastomosis staple and cutter
Moved in nail bin.Nail bin frame is connected with the extension in surgery circular staplers.In ejector pin block and surgery circular staplers
Trigger shaft connection in extension.Nail-anvil assembly includes nail anvil, knife anvil and nail anvil extension bar.Nail anvil, knife anvil and the connection of nail anvil extension bar
Together.Nail anvil extension bar is connected with the anvil pull rod in the extension in surgery circular staplers.
The Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention includes circular cone inclined-plane, tubular lip and card
Detain connection component.Component is snapped connection to be made up of first component and second component.Snapping connection has circle on the first component of component
Bore inclined-plane.The bus on circular cone inclined-plane both can be straight line or curve.Snapping connection on the second component of component has tubular
Lip.Tubular lip both can be tubular or pyramid type, and its bus both can be straight line or curve.When
When first component is joined together with second component, first component is snapped connection component with second component and is locked together,
First component is hindered to be axially moveable with respect to second component, meanwhile, the circular cone inclined-plane on first component and the pipe on second component
Shape lip is mutually drawn close.When pinching the tubular lip on flat second component, tubular lip is moved along the circular cone inclined-plane on first component
It is dynamic, so that tubular lip promotes and is snapped first component and second component that connection component is locked together and is separated from each other.
There can be circumferential recess on first component.There can be circumferential projection on second component.Circumference on first component is recessed
Groove is snapped connection with snapping connection the axial direction in component described in the circumferential projection composition on second component.When first component and second
When part is joined together, the circumferential projection in the circumferential recess and second component on first component is connected by the axial buckle
Connect and be locked together, hinder first component to be axially moveable with respect to second component, meanwhile, circular cone inclined-plane on first component and the
Tubular lip on two parts is mutually drawn close.When pinching the tubular lip on flat second component, tubular lip is along along first component
The movement of circular cone inclined-plane so that tubular lip, which is promoted, is axially snapped connection circumferential recess on the first component being locked together
It is separated from each other with the circumferential projection on second component.
There can be axial projection on first component.There can be axial notch on second component.Axial direction on first component is convex
Block snaps connection the circumferentially positioned connection in component with the axial notch composition on second component.When the axial direction on first component is convex
After in axial notch on block insertion second component, prevent first component from being rotated in second component.
In the Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention, first in component is snapped connection
Part can be the nail bin frame in nail bin groupware.The second component snapped connection in component can be in surgery circular staplers
Extension.When nail bin frame and extension are joined together, nail bin frame is snapped connection component with extension and is locked together,
Nail bin frame is hindered to be axially moveable with respect to extension, meanwhile, the circular cone inclined-plane on nail bin frame and the tubular lip phase on extension
Mutually draw close.When pinching the tubular lip on flat extension, tubular lip is moved along the circular cone inclined-plane on nail bin frame, so that tubular lip
Side, which is promoted, to be snapped nail bin frame and extension that connection component is locked together and is separated from each other.
There can be circumferential recess on nail bin frame in nail bin groupware.There can be circumferential projection on extension.On nail bin frame
Circumferential recess is snapped connection with snapping connection the axial direction in component described in the circumferential projection composition on extension.When on extension
After circumferential projection elastic deformation enters in the circumferential recess on nail bin frame, the circumference in circumferential recess and extension on nail bin frame
Projection is snapped connection by the axial direction and is locked together, and hinders nail bin frame to be axially moveable with respect to extension, meanwhile, on nail bin frame
Circular cone inclined-plane mutually drawn close with the tubular lip on extension.When pinching the tubular lip on flat extension, tubular lip edge
Circular cone inclined-plane movement on nail bin frame, so that tubular lip promotes the circumferential projection elastic deformation on extension to exit on nail bin frame
Circumferential recess so that the week in the circumferential recess and extension on the nail bin frame being locked together is snapped connection by the axial direction
It is separated from each other to projection.In operation, the auditory tone cues sent during circumferential projection elastic deformation on extension, nail bin frame
The axial direction between extension snaps connection state and has been changed.
There can be axial projection on nail bin frame in nail bin groupware.There can be axial notch on extension.On nail bin frame
Axial projection is with snapping connection the circumferentially positioned connection in component described in the axial notch composition on extension.When on nail bin frame
After in axial notch on axial projection insertion extension, prevent nail bin frame from being rotated in extension.
In the Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention, first in component is snapped connection
Part can be the anvil pull rod in extension.It can be that the nail anvil in nail-anvil assembly connects to snap connection the second component in component
Bar.When anvil pull rod and nail anvil extension bar are joined together, anvil pull rod is snapped connection component with nail anvil extension bar and is locked at
Together, anvil pull rod is hindered to be axially moveable with respect to nail anvil extension bar, meanwhile, on the circular cone inclined-plane and nail anvil extension bar in anvil pull rod
Tubular lip mutually draw close.When pinching the tubular lip on clasp nail anvil extension bar, tubular lip is along the cone inclined in anvil pull rod
Face is moved, so that tubular lip promotes and is snapped anvil pull rod that connection component is locked together and nail anvil extension bar is separated from each other.
There can be circumferential recess in anvil pull rod in extension.Can have circumferential convex on nail anvil extension bar in nail-anvil assembly
Block.Circumferential recess in anvil pull rod is with snapping connection the axial buckle in component described in the circumferential projection composition on nail anvil extension bar
Connection.After the circumferential projection elastic deformation on nail anvil extension bar enters in the circumferential recess in anvil pull rod, in anvil pull rod
Circumferential recess is snapped connection by the axial direction with the circumferential projection on nail anvil extension bar and is locked together, and hinders anvil pull rod is relative to follow closely
Anvil extension bar is axially moveable, meanwhile, the circular cone inclined-plane in anvil pull rod is mutually drawn close with the tubular lip on nail anvil extension bar.When pinching
During tubular lip on clasp nail anvil extension bar, tubular lip is moved along the circular cone inclined-plane in anvil pull rod, so that tubular lip is promoted
The circumferential recess that circumferential projection elastic deformation on nail anvil extension bar is exited in anvil pull rod so that lock is snapped connection by the axial direction
Tightly the circumferential projection in the circumferential recess and nail anvil extension bar in anvil pull rod together is separated from each other.In operation, follow closely
The auditory tone cues sent during circumferential projection elastic deformation on anvil extension bar, the axially card between anvil pull rod and nail anvil extension bar
Button connection status has been changed.
Brief description of the drawings
Fig. 1 is the front view for representing the execution head on the extension of surgery circular staplers of the present invention；
Fig. 2 is the front view of the extension and nail bin groupware that represent Fig. 1；
Fig. 3 is the front view of anvil pull rod in the extension for represent Fig. 1 and nail-anvil assembly；
Before Fig. 4 is ejector pin block, anastomosis staple and cutter in trigger shaft and nail bin groupware in the extension for represent Fig. 1
View；
Fig. 5 is the front view for the nail bin groupware for representing Fig. 1；
Fig. 6 is the front view of the nail bin frame in the nail bin groupware for represent Fig. 5；
Fig. 7 is the front view of the nail bin in the nail bin groupware for represent Fig. 5；
Fig. 8 is the outside drawing for the extension for representing Fig. 2；
Fig. 9 is the outside drawing for the tubular lip being arranged on extension for representing Fig. 2；
Figure 10 is to represent the front view for snapping connection component that Fig. 2 extension is constituted with nail bin frame；
Figure 11 is the 11-11 sectional views for representing Figure 10；
Figure 12 is to represent the front view for snapping connection component that Fig. 3 anvil pull rod is constituted with nail-anvil assembly；
Figure 13 is the 13-13 sectional views for representing Figure 12；
Figure 14 is the outside drawing for the nail-anvil assembly and tubular lip for representing Figure 12；
Figure 15 is the outside drawing for the nail-anvil assembly for representing Figure 12；
Figure 16 is the outside drawing for the anvil pull rod for representing Figure 12；
Figure 17 is the outside drawing for the tubular lip for representing Figure 12.
Embodiment
Way of example is used below, and the rapid-assembling/disassembling knot of the execution head of the surgery circular staplers of the present invention is stated with reference to accompanying drawing
The most preferred embodiment of structure.The scope of the present invention will be indicated in the claims.It should be appreciated that some or all accompanying drawing be all for
The explanation sketch of explanation highly preferred embodiment of the present invention, and do not depict the full-size(d) of shown part.With reference to optimal reality
Apply the detailed narration of example, it will be more clearly understood from reaching above-mentioned and other objects and advantages the actual side of the present invention
Formula.
In the the accompanying drawings and the following description, term " axial direction " be using surgery circular staplers execution head long axis direction as
Benchmark, term " circumference " is on the basis of the contour direction of the radial section of the execution head of surgery circular staplers.Other positions
It can understand with reference to the accompanying drawings with following description with the term in direction.
Fig. 1 to Figure 17 is the Quick assembling-disassembling structure for the execution head for representing the surgery circular staplers of the present invention.
As shown in Figures 1 to 4, performing first 1 includes nail bin groupware 2 and nail-anvil assembly 3.Perform first 1 and be arranged on surgery circle
On the extension 4 of stapler.Nail bin groupware 2 includes nail bin 5, anastomosis staple 6, cutter 7, ejector pin block 8 and nail bin frame 9.Nail bin 5 with
Nail bin frame 9 is fixedly connected.Anastomosis staple 6, cutter 7 and ejector pin block 8 are installed in nail bin 5 and nail bin frame 9.Ejector pin block 8 promotes kiss
Dowel 6 and cutter 7 are moved in nail bin 5.Nail bin frame 9 is connected with extension 4.Ejector pin block 8 and the trigger shaft 10 in extension 4
Connection.Nail-anvil assembly 3 includes nail anvil 11, knife anvil 12 and nail anvil extension bar 13.Nail anvil 11, knife anvil 12 and nail anvil extension bar 13 are connected to one
Rise.Nail anvil extension bar 13 is connected with the anvil pull rod 14 in extension 4.
The Quick assembling-disassembling structure of the execution first 1 of surgery circular staplers includes the nail bin frame 9 and extension in nail bin groupware 2
It is quick between the nail anvil extension bar 13 in the anvil pull rod 14 and nail-anvil assembly 3 in Quick assembling-disassembling structure and extension 4 between 4
Assembling-disassembling structure.
As shown in Fig. 5 to Figure 11, in the Quick assembling-disassembling structure between nail bin frame 9 and extension 4, in nail bin groupware 2
Nail bin frame 9 snaps connection component 15 with the composition of extension 4.There are circumferential recess 16, axial projection 17 and circular cone inclined-plane on nail bin frame 9
18.There are circumferential projection 19, axial notch 20 and tubular lip 21 on extension 4.Tubular lip 21 is fixedly mounted on extension 4
On.Circumferential recess 16 on nail bin frame 9 constitutes the axial buckle snapped connection in component 15 with the circumferential projection 19 on extension 4
Connection.Axial projection 17 on nail bin frame 9 constitutes the circumference snapped connection in component 15 with the axial notch 20 on extension 4 and determined
Position connection.
After in the axial notch 20 on the insertion extension 4 of axial projection 17 on nail bin frame 9, it can prevent nail bin frame 9 from existing
Rotated in extension 4.After the elastic deformation of circumferential projection 19 on extension 4 enters in the circumferential recess 16 on nail bin frame 9, nail
Circumferential recess 16 on storehouse frame 9 is snapped connection with the circumferential projection 19 on extension 4 by the axial direction to be locked together, and hinders nail
Storehouse frame 9 is axially moveable with respect to extension 4, meanwhile, the circular cone inclined-plane 18 on nail bin frame 9 and the tubular lip 21 on extension 4
Mutually draw close.When pinching the tubular lip 21 on flat extension 4, tubular lip 21 is moved along the circular cone inclined-plane 18 on nail bin frame 9,
So as to which tubular lip 21 promotes the circumferential recess 16 that the elastic deformation of circumferential projection 19 on extension 4 is exited on nail bin frame 9 so that
The phase of circumferential projection 19 in the circumferential recess 16 and extension 4 on the nail bin frame 9 being locked together is snapped connection by the axial direction
Mutually separation.In operation, the auditory tone cues sent during circumferential 19 elastic deformation of projection on extension 4, nail bin frame 9 is with prolonging
Stretch the axial direction between pipe 4 and snap connection state and be changed.
As shown in Figure 12 to Figure 17, between the nail anvil extension bar 13 in anvil pull rod 14 and nail-anvil assembly 3 in extension 4
Quick assembling-disassembling structure in, anvil pull rod 14 in extension 4 snaps connection group with the composition of nail anvil extension bar 13 in nail-anvil assembly 3
Part 22.There are circumferential recess 23 and circular cone inclined-plane 24 in anvil pull rod 14.There are circumferential projection 25 and tubular lip on nail anvil extension bar 13
26.Tubular lip 26 is fixedly mounted on nail anvil extension bar 13.In circumferential recess 23 and nail anvil extension bar 13 in anvil pull rod 14
Circumferential projection 25 constitutes the axial direction snapped connection in component 22 and snapped connection.
After the elastic deformation of circumferential projection 25 on nail anvil extension bar 13 enters in the circumferential recess 23 in anvil pull rod 14, nail
Circumferential recess 23 on anvil pull bar 14 is snapped connection with the circumferential projection 25 on nail anvil extension bar 13 by the axial direction to be locked together,
Anvil pull rod 14 is hindered to be axially moveable with respect to nail anvil extension bar 13, meanwhile, the circular cone inclined-plane 24 in anvil pull rod 14 connects with nail anvil
Tubular lip 26 on bar 13 is mutually drawn close.When pinching the tubular lip 26 on clasp nail anvil extension bar 13, tubular lip 26 is along nail anvil
Circular cone inclined-plane 24 on pull bar 14 is moved, so that tubular lip 26 promotes the elastic deformation of circumferential projection 25 on nail anvil extension bar 13 to move back
The circumferential recess 23 gone out in anvil pull rod 14 so that the week in the anvil pull rod 14 being locked together is snapped connection by the axial direction
It is separated from each other to the circumferential projection 25 on groove 23 and nail anvil extension bar 13.In operation, the circumference on nail anvil extension bar 13 is convex
The auditory tone cues sent during 25 elastic deformation of block, the axial direction between anvil pull rod 14 and nail anvil extension bar 13 snap connection state by
Change.
Understood according to above-mentioned be discussed in detail, the Quick assembling-disassembling structure of the execution head of surgery circular staplers of the invention can be with
Reach following technique effect：
The Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention, is realized when the axial projection on nail bin frame
After inserting in the axial notch on extension, it can prevent nail bin frame from being rotated in extension；Realize when the circumference on extension is convex
After block elastic deformation enters in the circumferential recess on nail bin frame, formed and axially snapped connection, nail bin frame can be hindered with respect to extension
It is axially moveable, meanwhile, the circular cone inclined-plane on nail bin frame is mutually drawn close with the tubular lip on extension；Realize to work as and pinch flat extension
During tubular lip on pipe, the circumference that tubular lip promotes the circumferential projection elastic deformation on extension to exit on nail bin frame is recessed
Groove so that the circumferential projection phase in the circumferential recess and extension on the nail bin frame being locked together is snapped connection by the axial direction
Mutually separation.In operation, the auditory tone cues sent during circumferential projection elastic deformation on extension, nail bin frame and extension
Between axial direction snap connection state and be changed.The Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention reaches
To the purpose of rapid-assembling/disassembling nail bin groupware so that surgery circular staplers convenience more secure when used, cost of use is lower.
The Quick assembling-disassembling structure of the execution head of the surgery circular staplers of the present invention, is realized when the circumference on nail anvil extension bar is convex
After block elastic deformation enters in the circumferential recess in anvil pull rod, formed and axially snapped connection, hinder anvil pull rod with respect to nail anvil
Extension bar is axially moveable, meanwhile, the circular cone inclined-plane in anvil pull rod is mutually drawn close with the tubular lip on nail anvil extension bar；Realize and work as
When pinching the tubular lip on clasp nail anvil extension bar, tubular lip promotes the circumferential projection elastic deformation on nail anvil extension bar to exit nail anvil drawing
Circumferential recess on bar so that the circumferential recess and nail anvil snapped connection by the axial direction in the anvil pull rod being locked together connects
Circumferential projection on bar is separated from each other.In operation, the sound sent during circumferential projection elastic deformation on nail anvil extension bar
Prompting, the axial direction between anvil pull rod and nail anvil extension bar snaps connection state and has been changed.The surgery circular staplers of the present invention
The Quick assembling-disassembling structure of execution head reach the purpose of rapid-assembling/disassembling nail-anvil assembly so that surgery circular staplers are more pacified when using
Complete convenient, cost of use is lower.
It will thus be seen that above-mentioned stated target, including by those shown targets described above by effectively
Reach.Described here is only the typical optimal form of implementation of the present patent application, can make some changes to said structure
Change also without prejudice to the spirit and scope of the present invention.The present invention is not limited to detail set forth herein, and answers
It is obvious any to retain as stated in the restriction of claim for art secondary technology personnel
Improve or retrofit.
Claims (8)
1. a kind of Quick assembling-disassembling structure of the execution head of surgery circular staplers, the execution head of the surgery circular staplers includes
Nail bin groupware and nail-anvil assembly, the execution head are arranged on the extension of surgery circular staplers；
The nail bin groupware includes nail bin, anastomosis staple, cutter, ejector pin block and nail bin frame, and the nail bin is fixed with nail bin frame to be connected
Connect, the anastomosis staple, cutter and ejector pin block are installed in nail bin and nail bin frame, ejector pin block promotes anastomosis staple and cutter in nail
Moved in storehouse, nail bin frame is connected with the extension in surgery circular staplers, in ejector pin block and surgery circular staplers
Trigger shaft connection in extension；
The nail-anvil assembly includes nail anvil, knife anvil and nail anvil extension bar, and the nail anvil, knife anvil and nail anvil extension bar link together, and follows closely
Anvil extension bar is connected with the anvil pull rod in the extension in surgery circular staplers；
It is characterized in that：The Quick assembling-disassembling structure of the execution head of the surgery circular staplers includes circular cone inclined-plane, tubular lip
With snap connection component, the component that snaps connection is made up of first component and second component, described to snap connection the of component
Having on one part on the cone inclined face, the second component for snapping connection component has the tubular lip；Work as first component
When being joined together with second component, first component is snapped connection component with second component and is locked together, and hinders first
Part is axially moveable with respect to second component, meanwhile, the circular cone inclined-plane on first component and the tubular lip phase on second component
Mutually draw close；When pinching the tubular lip on flat second component, tubular lip is moved along the circular cone inclined-plane on first component, so as to manage
Shape lip, which is promoted, to be snapped first component and second component that connection component is locked together and is separated from each other.
2. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 1, it is characterized in that, described the
Having on one part has circumferential recess on circumferential projection, the first component and described the on circumferential recess, the second component
The axial direction snapped connection described in circumferential projection composition on two parts in component is snapped connection；When first component and second component quilt
When linking together, the circumferential projection in the circumferential recess and second component on first component snaps connection locking by the axial direction
Together, first component is hindered to be axially moveable with respect to second component, meanwhile, circular cone inclined-plane and second component on first component
On tubular lip mutually draw close；When pinching the tubular lip on flat second component, tubular lip is along the circular cone on first component
Inclined-plane is moved, so that tubular lip is promoted by the circumferential recess and second on axial snap lock first component together
Circumferential projection on part is separated from each other.
3. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 2, it is characterized in that, described the
Having on one part has axial projection on axial notch, the first component and described the on axial projection, the second component
The circumferentially positioned connection in component is snapped connection described in axial notch composition on two parts；When the axial projection on first component
After inserting in the axial notch on second component, prevent first component from being rotated in second component.
4. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 1, it is characterized in that, the card
It is the nail bin frame in the nail bin groupware to detain the first component in connection component, and the second component that snaps connection in component is
Extension in the surgery circular staplers；When nail bin frame and extension are joined together, nail bin frame and extension quilt
Snap connection component to be locked together, hinder nail bin frame to be axially moveable with respect to extension, meanwhile, the circular cone inclined-plane on nail bin frame
Mutually drawn close with the tubular lip on extension；When pinching the tubular lip on flat extension, tubular lip is along along nail bin frame
Circular cone inclined-plane is moved, so that tubular lip promotes and is snapped nail bin frame and extension that connection component is locked together and mutually divides
From.
5. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 4, it is characterized in that, the nail
Having on nail bin frame in the component of storehouse has circumferential projection on circumferential recess, the extension, the circumferential recess on the nail bin frame with
The axial direction snapped connection described in circumferential projection composition on the extension in component is snapped connection；When the circumference on extension is convex
After block elastic deformation enters in the circumferential recess on nail bin frame, the circumferential projection quilt in the circumferential recess and extension on nail bin frame
The axial direction, which is snapped connection, to be locked together, and hinders nail bin frame to be axially moveable with respect to extension, meanwhile, the circular cone on nail bin frame
Inclined-plane is mutually drawn close with the tubular lip on extension；When pinching the tubular lip on flat extension, tubular lip is along nail bin frame
On the movement of circular cone inclined-plane so that tubular lip promotes the circumference that exits on nail bin frame of circumferential projection elastic deformation on extension
Groove so that the circumferential projection in the circumferential recess and extension on the nail bin frame being locked together is snapped connection by the axial direction
It is separated from each other.
6. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 4, it is characterized in that, the nail
Having on nail bin frame in the component of storehouse has axial notch on axial projection, the extension, the axial projection on the nail bin frame with
The circumferentially positioned connection in component is snapped connection described in axial notch composition on the extension；When the axial direction on nail bin frame is convex
After in axial notch on block insertion extension, prevent nail bin frame from being rotated in extension.
7. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 1, it is characterized in that, the card
It is the anvil pull rod in the extension to detain the first component in connection component, and the second component that snaps connection in component is
Nail anvil extension bar in the nail-anvil assembly；When anvil pull rod and nail anvil extension bar are joined together, anvil pull rod connects with nail anvil
Bar is locked together by the component that snaps connection, and hinders anvil pull rod to be axially moveable with respect to nail anvil extension bar, meanwhile, nail anvil is drawn
Circular cone inclined-plane on bar is mutually drawn close with the tubular lip on nail anvil extension bar；When pinching the tubular lip on clasp nail anvil extension bar, pipe
Shape lip is moved along the circular cone inclined-plane in anvil pull rod, so that tubular lip, which is promoted, is snapped the nail that connection component is locked together
Anvil pull bar and nail anvil extension bar are separated from each other.
8. the Quick assembling-disassembling structure of the execution head of surgery circular staplers according to claim 7, it is characterized in that, it is described to prolong
Stretching has circumferential recess in the anvil pull rod in pipe, there is circumferential projection on the nail anvil extension bar in the nail-anvil assembly, and the nail anvil is drawn
Circumferential recess on bar is snapped connection with snapping connection the axial direction in component described in the circumferential projection composition on the nail anvil extension bar；
After the circumferential projection elastic deformation on nail anvil extension bar enters in the circumferential recess in anvil pull rod, the circumference in anvil pull rod is recessed
Groove is snapped connection by the axial direction with the circumferential projection on nail anvil extension bar and is locked together, and hinders anvil pull rod with respect to nail anvil extension bar
It is axially moveable, meanwhile, the circular cone inclined-plane in anvil pull rod is mutually drawn close with the tubular lip on nail anvil extension bar；When pinching clasp nail anvil
During tubular lip on extension bar, tubular lip is moved along the circular cone inclined-plane in anvil pull rod, so that tubular lip promotes nail anvil to connect
The circumferential recess that circumferential projection elastic deformation on bar is exited in anvil pull rod so that axially snapped connection what is be locked together
The circumferential projection in circumferential recess and nail anvil extension bar in anvil pull rod is separated from each other.
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| CN201710345537.5A CN107049402B (en) | 2017-05-16 | 2017-05-16 | Quick assembling and disassembling structure of actuating head of surgical circular anastomat |
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| CN201710345537.5A CN107049402B (en) | 2017-05-16 | 2017-05-16 | Quick assembling and disassembling structure of actuating head of surgical circular anastomat |
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| CN107049402B CN107049402B (en) | 2023-09-15 |
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