CN109044437A - A kind of disposable surgical stapler - Google Patents
A kind of disposable surgical stapler Download PDFInfo
- Publication number
- CN109044437A CN109044437A CN201811088500.XA CN201811088500A CN109044437A CN 109044437 A CN109044437 A CN 109044437A CN 201811088500 A CN201811088500 A CN 201811088500A CN 109044437 A CN109044437 A CN 109044437A
- Authority
- CN
- China
- Prior art keywords
- nail
- nail bin
- kit
- latch segment
- groove
- 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.)
- Pending
Links
- 230000013011 mating Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—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
-
- 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
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
Abstract
The present invention discloses a kind of disposable surgical stapler, including rod-like members and the resist-nailed seat being connect with the rod-like members and nail kit, it is detachable in the nail kit that nail bin is installed, there is card slot on the medial surface of the nail kit, the nail bin is by cooperating the guiding rib of the card slot that can be inserted into the nail kit, the L-shaped latch segment for being applied certain force in the counterclockwise direction by torsional spring is installed far from rod-like members side in the nail bin, the groove for cooperating the latch segment is formed on the inner bottom surface of the nail kit, after the nail bin is along the card slot insertion nail kit, the lower end of the latch segment is in contact with the mating surface of the groove and is pushed against by the groove.Nail bin of the invention is disposable element, and nail kit is reusable, and nail bin uses push-in type mounting means, easily operated.
Description
Technical field
The present invention relates to stapling technique fields, and in particular to a kind of for cutting and suturing the staplers of tissue.
Background technique
Currently, disposable stapler used in surgery gastroenterostomy includes as shown in Figs. 1-2 knife bar component
100, blade insert and jaw members are cut, for cutter component assembling in knife bar component, jaw members include 200 He of resist-nailed seat
Nail kit component 300, jaw members are riveted together with knife bar component by connector, the nail of resist-nailed seat 200 and nail kit component 300
Casket 1 is linked together by pin, and nail bin 2 is equipped in nail kit 1, and elastic slice 4 is placed in nail bin, for after jaw members opening
To support bottom nail seat 200, the state opened is kept, further includes having the nail pushing device 5 of configuration and being slided by the ejector pin of cutter driving
Block 3.In use, it after nail bin is mounted in nail kit, in cutting, when cutting blade insert forward movement, will push
Ejector pin sliding block 3 moves forward, while jaw members are closed, and makes nail pushing device in nail bin to moving up in the moving process of ejector pin sliding block
It is dynamic, the nail in nail bin is released, nail cooperates after releasing with resist-nailed seat, realizes stitching tissue.
Disposable stapler is mostly that overall time uses used at present, wherein disposable nail kit can be replaced
Product becomes mainstream, but the installation of its nail bin is mostly installed using the mode of indentation, it has not been convenient to operate.
Summary of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide one kind for cutting and suturing group
The disposable surgical stapler knitted.
The technical solution adopted to achieve the purpose of the present invention is:
A kind of disposable surgical stapler, including rod-like members and the resist-nailed seat and nail that are connect with the rod-like members
Casket, it is detachable in the nail kit that nail bin is installed, which is characterized in that have card slot, the nail bin on the medial surface of the nail kit
By cooperating the guiding rib of the card slot that can be inserted into the nail kit, in the nail bin far from rod-like members side be equipped with by
Torsional spring applies the L-shaped latch segment of certain force in the counterclockwise direction, and the cooperation locking is formed on the inner bottom surface of the nail kit
The groove of block, after the nail bin is along the card slot insertion nail kit, the mating surface phase of the lower end of the latch segment and the groove
It contacts and is pushed against by the groove.
The latch segment is mounted on pin shaft, and the torsional spring is mounted between the pin shaft and latch segment, the pin shaft
Both ends are mounted in the axis hole on the side wall of the nail bin.
The groove is V-shaped groove, and the latch segment forms the inclined-plane being adapted to the mating surface of the V-shaped groove.
Nail bin of the invention is disposable element, and nail kit is reusable, and nail bin uses push-in type mounting means, easily
In operation.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing disposable surgical stapler；
Fig. 2 is the perspective view of the explosion of jaw members；
Fig. 3 is the structural schematic diagram of latch segment；
Fig. 4 is the schematic diagram of jaw members state when nail bin is not mounted to；
Fig. 5 is the schematic diagram of jaw members state when nail bin is installed in place；
Fig. 6 is nail bin locking force analysis figure；
Fig. 7 is the state diagram after the completion of cutter percussion.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
Referring to shown in Fig. 1-7, a kind of disposable surgical stapler, comprising:
Knife bar component 100, jaw members, jaw members have resist-nailed seat 200 and nail kit component 300, resist-nailed seat and nail kit portion
The nail kit of part is linked together by pin, as shown in Figs. 1-2, cutter, jaw members and knife is equipped in knife bar component
Rod unit 100 is riveted together by connector, and the elastic slice 4 for being kept open resist-nailed seat after jaw members is put
In nail bin 2, nail kit component 300 includes nail kit 1, has nail bin 2 in nail kit, has ejector pin sliding block 3 in nail kit 1, have ejector pin in nail bin 2
Device 5, the above are prior art constructions, are no longer described in detail.
The innovation of the application is there is card slot 11 on the medial surface of the nail kit 1, and the nail bin 2 passes through described in cooperation
The guiding rib (not shown) of card slot can be inserted into the nail kit 1, be equipped with and turned round far from rod-like members side in the nail bin
Spring 63 applies the L-shaped latch segment 6 of certain force in the counterclockwise direction, and the cooperation locking is formed on the inner bottom surface of the nail kit
The groove 65 of block, after the nail bin is along the card slot insertion nail kit, the lower end 64 of the latch segment and the cooperation of the groove
Face is in contact and pushes against latch segment by the groove and linked together by pin with nail bin, as shown in Figure 6.
Specifically, the latch segment is mounted on pin shaft 62, the torsional spring 63 is mounted between the pin shaft and latch segment,
The both ends of the pin shaft are mounted in the axis hole 21 on the side wall of the nail bin 2.
Wherein, the link block 61 that the medial surface of the latch segment is connect with the pin shaft, the company of being formed on the link block
Hole is connect, to install the pin shaft, the torsional spring 63 gives one power counterclockwise of latch segment always.
Specifically, the groove is V-shaped groove, the latch segment is adapted to oblique with the formation of the mating surface of the V-shaped groove
Face.
Such as Fig. 3, when nail bin 2 is fitted into nail kit 1, the resistance that torsional spring 63 is overcome to the thrust in rod-like members direction of people,
Nail bin 2 is packed into nail kit 1 along the card slot 11, Fig. 4 is the state in being fitted into, and after nail bin 2 is entirely enclosed in card slot, is such as schemed
Shown in 5, the lower end 64 of latch segment 6 can just be withstood on the groove on the inner bottom surface of nail kit 1, seen the enlarged drawing of Fig. 6, assembled at this time
It completes, can be fired by cutter.
During cutter travel forward, it can be moved forward by driving ejector pin sliding block 3, to be produced to latch segment 6
Raw forward thrust F, as shown in Figure 6, thrust F is decomposed into pressure Fy and thrust Fx, the Fy=F*COS α, FX parallel with inclined-plane
=F*SIN α, α are the angle of nail kit upper groove and horizontal plane.
Pressure Fy is pressed on nail bin 2 on the groove of nail kit 1, and pressure Fy can obtain frictional force Fz multiplied by friction coefficient μ, rubs
Wiping coefficient μ is definite value, and numerical values recited is related with material, and the direction of frictional force Fz is parallel with inclined-plane, contrary with pressure Fx.
As pressure Fz > Fx, i.e., cutter will not all release nail bin to the thrust F of nail bin generation during percussion
Outside nail kit, nail bin and nail kit can only be compressed, and determine pressure Fz whether be consistently greater than pressure Fx key factor it is only angled
α；It is completed when cutter fire, cutter push the Forward of ejector pin sliding block, so as to which latch segment to be ejected to the groove of nail kit pedestal,
At this point, nail bin can be extracted from the front end of nail kit, the nail bin more renewed.
Previous buckle-type nail bin installation needs tool to carry out dismounting and change nail bin, and the nail bin in the present invention is that push-in type can
Self-locking nail bin assembly is convenient manually to be completed, percussion complete can opposite direction release, it is easy to operate.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of disposable surgical stapler, including rod-like members and the resist-nailed seat being connect with the rod-like members and nail kit,
It is detachable in the nail kit that nail bin is installed, which is characterized in that have card slot on the medial surface of the nail kit, the nail bin passes through
Cooperating the guiding rib of the card slot can be inserted into the nail kit, be equipped with far from rod-like members side by torsional spring in the nail bin
Apply the L-shaped latch segment of certain force in the counterclockwise direction, the cooperation latch segment is formed on the inner bottom surface of the nail kit
Groove, after the nail bin is along the card slot insertion nail kit, the lower end of the latch segment is in contact with the mating surface of the groove
And it is pushed against by the groove.
2. disposable surgical stapler as described in claim 1, which is characterized in that the latch segment is mounted on pin shaft, described
Torsional spring is mounted between the pin shaft and latch segment, and the both ends of the pin shaft are mounted in the axis hole on the side wall of the nail bin.
3. disposable surgical stapler as claimed in claim 2, which is characterized in that the groove is V-shaped groove, the locking
Block forms the inclined-plane being adapted to the mating surface of the V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088500.XA CN109044437A (en) | 2018-09-18 | 2018-09-18 | A kind of disposable surgical stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088500.XA CN109044437A (en) | 2018-09-18 | 2018-09-18 | A kind of disposable surgical stapler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109044437A true CN109044437A (en) | 2018-12-21 |
Family
ID=64762934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088500.XA Pending CN109044437A (en) | 2018-09-18 | 2018-09-18 | A kind of disposable surgical stapler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109044437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869811A (en) * | 2021-02-01 | 2021-06-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat with sewing nail delivery self-locking structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040093029A1 (en) * | 2002-04-15 | 2004-05-13 | Cook Biotech, Incorporated | Apparatus and method for producing a reinforced surgical staple line |
| CN101507638A (en) * | 2008-02-15 | 2009-08-19 | 伊西康内外科公司 | Buttress material for a surgical stapling instrument |
| CN209236259U (en) * | 2018-09-18 | 2019-08-13 | 天津瑞贝精密机械技术研发有限公司 | A kind of disposable surgical stapler |
-
2018
- 2018-09-18 CN CN201811088500.XA patent/CN109044437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040093029A1 (en) * | 2002-04-15 | 2004-05-13 | Cook Biotech, Incorporated | Apparatus and method for producing a reinforced surgical staple line |
| CN101507638A (en) * | 2008-02-15 | 2009-08-19 | 伊西康内外科公司 | Buttress material for a surgical stapling instrument |
| CN209236259U (en) * | 2018-09-18 | 2019-08-13 | 天津瑞贝精密机械技术研发有限公司 | A kind of disposable surgical stapler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869811A (en) * | 2021-02-01 | 2021-06-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat with sewing nail delivery self-locking structure |
| CN112869811B (en) * | 2021-02-01 | 2022-02-11 | 苏州法兰克曼医疗器械有限公司 | Anastomat with sewing nail delivery self-locking structure |
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