CN102058421A - Linear cutting and stitching instrument - Google Patents
Linear cutting and stitching instrument Download PDFInfo
- Publication number
- CN102058421A CN102058421A CN 201010592540 CN201010592540A CN102058421A CN 102058421 A CN102058421 A CN 102058421A CN 201010592540 CN201010592540 CN 201010592540 CN 201010592540 A CN201010592540 A CN 201010592540A CN 102058421 A CN102058421 A CN 102058421A
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- CN
- China
- Prior art keywords
- ejector pin
- pin bar
- far
- linear type
- bar
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
Abstract
The invention discloses a linear cutting and stitching instrument. The linear cutting and stitching instrument comprises an upper forceps clip and a lower forceps clip which can be closed or opened mutually; a far end of the lower forceps clip is provided with a nail storehouse; the lower forceps clip is U-shaped, and an ejector pin and a push broach rod are slidably arranged in the lower forceps clip; near ends of the ejector pin and the push broach rod are both connected with a slide block, and the slide block is provided with a waist-shaped slot; and the near end of the ejector pin is pivoted in the waist-shaped slot through a rotating shaft. The linear cutting and stitching instrument also comprises a safety mechanism; the safety mechanism comprises a lifting element used for uplifting a far end of the ejector pin, and a limiting piece used for limiting the axial movement of the ejector pin; and the nail storehouse can act on the far end of the ejector pin, so that the linear cutting and stitching instrument is in the insurance state or the insurance release state selectively. The linear cutting and stitching instrument has the advantages of simple structure, convenience in processing, safety, reliability, and good popularization value.
Description
Technical field
The present invention relates to a kind of linear type stapler, belong to technical field of medical instruments.
Background technology
The linear type stapler is widely used in being used in the surgical operation wound suture, interior tissue is sewed up and cutting, typical linear type stapler such as U.S. Pat 5129570 announcement, have and sew up and two functions of cutting, when carrying out wound suture, excess tissue is excised.Such linear type stapler generally comprises upper and lower two clamps, and the closed handle that is used for closed upper and lower clamp, be oppositely arranged on the nail anvil and the nail bin of upper and lower clamp front end, be located in the nail bin and can move percussion sheet and cutting knife relative to described nail bin simultaneously, and be used to drive the push button that described percussion sheet and cutting knife move.Be disposed with suturing nail in the described nail bin, described percussion sheet promotes pushing slice of nail successively and pushes suturing nail to nail anvil, and described cutting knife will cut off at the tissue between nail bin and the nail anvil.
The nail bin of this apparatus be can change nonexpondable.When clinical use, often need repeatedly stitching to cut and organize, therefore when operation, need repeatedly change nail bin.Under the situation of not putting into nail bin, push button can be promoted forward arbitrarily, and then cutting knife can be pushed out, and can cause only cutting and unstitched serious consequence.Therefore, the linear type stapler of prior art all can be provided with a kind of insurance institution.
U.S. Pat has disclosed a kind of insurance institution No. 5129570, and a safety block that has cutting knife passage and ejector pin bar passage is set at the middle part of apparatus, and shell fragment is set below cutting knife.When apparatus was shown in an open position (being that upper and lower two clamps are not closed), shell fragment was upspring cutting knife, made cutting knife can't pass through the cutting knife passage, played safety effect; When apparatus is loaded onto nail bin, and after upper and lower two clamp closures, nail bin compressing cutting knife top makes cutting knife overcome the elastic force of shell fragment and returns to state with the cutting knife channel alignment, and insurance is at this moment removed, and apparatus can be pulled the trigger use.
U.S. Pat has disclosed another kind of insurance institution No. 7055730, and a safety block that has push broach bar passage and ejector pin bar passage is set at the middle part of apparatus, and this safety block can rotate around apparatus under the torsion spring effect.When apparatus was shown in an open position (being that upper and lower two clamps are not closed), safety block twisted, and made ejector pin bar and push broach bar all can't pass through passage, played safety effect; When apparatus is loaded onto nail bin, and after upper and lower two clamp closures, nail bin compressing safety block make it overcome the elastic force of torsion spring and recover the normal position (be ejector pin bar and push broach bar respectively with its safety block on channel alignment), make ejector pin bar and push broach bar all can pass through safety block, at this moment insurance is removed, and apparatus can be pulled the trigger use.
More than several structures all very complicated, processing assembling difficulty costs an arm and a leg.
Summary of the invention
The objective of the invention is to propose a kind of linear type stapler with insurance institution of simple structure.
Purpose of the present invention will be achieved by the following technical programs:
A kind of linear type stapler, comprise: can be mutually closed or open on, following clamp, the described far-end of clamp down is provided with nail bin, described clamp down is a ∪ shape, be provided with ejector pin bar and push broach bar in it slidably, the near-end of described ejector pin bar and push broach bar all is fixedly connected on the sliding shoe, it is characterized in that: the near-end of described ejector pin bar is provided with a waist type groove, one rotating shaft is passed this waist type groove and pivot on described sliding shoe, described linear type stapler also comprises an insurance institution, described insurance institution comprises that one is used to lift the lifters of the far-end of described ejector pin bar, and a far-end that is arranged at described ejector pin bar, and be used to limit the axially movable locating part of described ejector pin bar.
Further, described lifters is arranged at the far-end of described ejector pin bar.
Further, described lifters is a post, and described post comprises straight pin and is socketed on spring on the described straight pin; The bottom of described post is fixedly connected on the described inner bottom surface of clamp down, and the top of described post is connected to the bottom surface of described ejector pin bar.
Further, the bottom of described post is welded in the described inner bottom surface of clamp down.
Further, described locating part comprises the step that is arranged on described ejector pin bar far-end and is arranged on down safety block on the clamp that when described ejector pin bar was lifted by described post, the step of its far-end was meshed with safety block.
Further, described nail bin is connected to described ejector pin bar, and drives described ejector pin bar and oppress described lifters.
Beneficial effect of the present invention is mainly reflected in: simple in structure, easy to process, safe and reliable, and have excellent popularization and be worth.
Description of drawings
Fig. 1 is the part-structure sketch map of linear type stapler of the present invention when being in safety position, does not show nail bin;
Fig. 2 is the enlarged drawing of A part among Fig. 1;
Fig. 3 is that linear suture device of the present invention is in the part-structure sketch map when insuring release conditions;
Fig. 4 is the enlarged drawing of B part among Fig. 3.
Wherein:
1 time clamp 2 sliding shoes 3 ejector pin bar
31 steps, 32 rotating shafts, 4 safety blocks
Clamp on 5 post, 6 nail bins 7
The specific embodiment
Shown in Fig. 1-4, linear type stapler in the present embodiment comprises: can be mutually closed or last clamp 7, time clamp 1 opened, the far-end of following clamp 1 is provided with nail bin 6 and safety block 4, following clamp 1 is a U type structure, be provided with ejector pin bar 3 and push broach bar (not shown) in it slidably, an end of ejector pin bar 3 and described push broach bar all is connected in a sliding shoe 2.
As shown in figures 1 and 3, the near-end of described ejector pin bar is provided with a waist type groove, and a rotating shaft 32 is passed this waist type groove and pivot on described sliding shoe 2, thereby has guaranteed that ejector pin bar 3 can have enough spaces to move.
Shown in Fig. 1-4, the linear type stapler in the present embodiment also comprises an insurance institution, and described insurance institution comprises post 5, and elastic component 5 comprises straight pin and is socketed on spring on the described straight pin, thereby makes its top to move up and down along its axis; The bottom of elastic component 5 is welded in down the inner bottom surface of clamp 1, the top of elastic component 5 is connected to the bottom of ejector pin bar 3, thereby play the effect of the far-end that lifts ejector pin bar 3, and post 5 is arranged at the front end of ejector pin bar 3, this design makes that the arm of force of the power on the ejector pin bar 3 that acts on is elongated, thereby makes described linear type stapler reduce the performance demands of elastic component 5.
As Fig. 2 and shown in Figure 4, described insurance institution also comprises a locating part, the step 31 that described locating part comprises the top of the far-end that is arranged on ejector pin bar 3 and matches and use with safety block 4, when elastic component 5 lifts the far-end of ejector pin bar 3, step 31 can be connected in the bottom of safety block 4, thereby limits moving axially of ejector pin bar 3.
Nail bin 6 is when the following far-end of clamp 1 is installed or separate, and it can act on the far-end of ejector pin bar 3, thereby makes described linear type stapler optionally be in two states:
A) safety position shown in Fig. 1-2: the axes intersect of ejector pin bar 3 is in the axis of following clamp 1, and promptly the far-end of ejector pin bar 3 floats, and the step 31 that is positioned at the far-end of ejector pin bar 3 is connected in the bottom of safety block 4, thereby makes ejector pin bar 3 not move axially;
B) insurance release conditions as shown in Figure 3-4: the axis of ejector pin bar 3 is parallel to the down axis of clamp 1, and the step 31 that is positioned at the far-end of ejector pin bar 3 is separated with safety block 4, thereby makes ejector pin bar 3 to move axially.
Introduce the operation principle of present embodiment cathetus type stapler below simply:
When not using described linear type stapler, last clamp 7 and following clamp 1 are separated, the far-end of ejector pin bar 3 is not subjected to enough pressure, post 5 pops up under the effect of described spring, make the far-end of ejector pin bar 3 32 be upturned around the shaft, the step 31 that is positioned at the top of ejector pin bar 3 far-ends is connected in the bottom of safety block 4, thereby makes ejector pin bar 3 to move axially, and promptly is in the safety position shown in Fig. 1-2; When using described linear type stapler, nail bin 6 is mounted to down the far-end of clamp 1, and last clamp 7 and following clamp 1 are closed mutually, nail bin 6 acts on the far-end of ejector pin bar 3, thereby make the bottom of step 31 and safety block 4 be separated, ejector pin bar 3 can move axially, and described linear type stapler can be pulled the trigger, and promptly is in insurance release conditions as shown in Figure 3-4.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within protection scope of the present invention.
Claims (6)
1. linear type stapler, comprise: can be mutually closed or open on, following clamp, the described far-end of clamp down is provided with nail bin, described clamp down is a ∪ shape, be provided with ejector pin bar and push broach bar in it slidably, the near-end of described ejector pin bar and push broach bar all is connected on the sliding shoe, it is characterized in that: the near-end of described ejector pin bar is provided with a waist type groove, one rotating shaft is passed this waist type groove and pivot on described sliding shoe, described linear type stapler also comprises an insurance institution, described insurance institution comprises that one is used to lift the lifters of the far-end of described ejector pin bar, and a far-end that is arranged at described ejector pin bar, and be used to limit the axially movable locating part of described ejector pin bar.
2. linear type stapler according to claim 1 is characterized in that: described lifters is arranged at the far-end of described ejector pin bar.
3. linear type stapler according to claim 2 is characterized in that: described lifters is a post, and described post comprises straight pin and is socketed on spring on the described straight pin; The bottom of described post is fixedly connected on the described inner bottom surface of clamp down, and the top of described post is connected to the bottom surface of described ejector pin bar.
4. linear type stapler according to claim 3 is characterized in that: the bottom of described post is welded in the described inner bottom surface of clamp down.
5. linear type stapler according to claim 1, it is characterized in that: described locating part comprises the step that is arranged on described ejector pin bar far-end and is arranged on the safety block on the clamp described time, when described ejector pin bar was lifted by described post, the step of its far-end was meshed with described safety block.
6. linear type stapler according to claim 1 is characterized in that: described nail bin is connected to described ejector pin bar far-end, and drives described ejector pin bar and oppress described lifters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010592540 CN102058421B (en) | 2010-12-16 | 2010-12-16 | Linear cutting and stitching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010592540 CN102058421B (en) | 2010-12-16 | 2010-12-16 | Linear cutting and stitching instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102058421A true CN102058421A (en) | 2011-05-18 |
| CN102058421B CN102058421B (en) | 2012-04-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010592540 Active CN102058421B (en) | 2010-12-16 | 2010-12-16 | Linear cutting and stitching instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102058421B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940512A (en) * | 2011-06-09 | 2013-02-27 | Tyco医疗健康集团 | Surgical fastener applying apparatus |
| CN103181801A (en) * | 2011-12-30 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Linear suturing and cutting instrument |
| CN103860222A (en) * | 2012-12-18 | 2014-06-18 | 苏州天臣国际医疗科技有限公司 | Linear suturing/cutting device |
| CN109953785A (en) * | 2017-12-14 | 2019-07-02 | 苏州天臣国际医疗科技有限公司 | Nail bin groupware and the Medical stapler for using the nail bin groupware |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5443197A (en) * | 1993-06-16 | 1995-08-22 | United States Surgical Corporation | Locking mechanism for a skin stapler cartridge |
| US5878938A (en) * | 1997-08-11 | 1999-03-09 | Ethicon Endo-Surgery, Inc. | Surgical stapler with improved locking mechanism |
| US20040007608A1 (en) * | 2000-10-13 | 2004-01-15 | Ehrenfels Karl H. | Surgical fastener applying apparatus |
| EP1479345A1 (en) * | 2003-05-20 | 2004-11-24 | Ethicon Endo-Surgery | Surgical stapling instrument having a spent cartridge lockout |
| CN1606968A (en) * | 2003-10-15 | 2005-04-20 | 伊西康内外科公司 | Surgical stapling instrument having a single lockout mechanism for prevention of firing |
| CN101352362A (en) * | 2008-07-30 | 2009-01-28 | 翁志强 | Empty nail cabin self-locking device of straight line cutting anastomat |
| CN101411637A (en) * | 2007-10-19 | 2009-04-22 | 周明喜 | Anastomat |
| CN101797174A (en) * | 2010-03-02 | 2010-08-11 | 瑞奇外科器械(北京)有限公司 | Safety device of linear cutting anastomat for surgery |
-
2010
- 2010-12-16 CN CN 201010592540 patent/CN102058421B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5443197A (en) * | 1993-06-16 | 1995-08-22 | United States Surgical Corporation | Locking mechanism for a skin stapler cartridge |
| US5878938A (en) * | 1997-08-11 | 1999-03-09 | Ethicon Endo-Surgery, Inc. | Surgical stapler with improved locking mechanism |
| US20040007608A1 (en) * | 2000-10-13 | 2004-01-15 | Ehrenfels Karl H. | Surgical fastener applying apparatus |
| EP1479345A1 (en) * | 2003-05-20 | 2004-11-24 | Ethicon Endo-Surgery | Surgical stapling instrument having a spent cartridge lockout |
| CN1606968A (en) * | 2003-10-15 | 2005-04-20 | 伊西康内外科公司 | Surgical stapling instrument having a single lockout mechanism for prevention of firing |
| CN101411637A (en) * | 2007-10-19 | 2009-04-22 | 周明喜 | Anastomat |
| CN101352362A (en) * | 2008-07-30 | 2009-01-28 | 翁志强 | Empty nail cabin self-locking device of straight line cutting anastomat |
| CN101797174A (en) * | 2010-03-02 | 2010-08-11 | 瑞奇外科器械(北京)有限公司 | Safety device of linear cutting anastomat for surgery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940512A (en) * | 2011-06-09 | 2013-02-27 | Tyco医疗健康集团 | Surgical fastener applying apparatus |
| CN103181801A (en) * | 2011-12-30 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Linear suturing and cutting instrument |
| CN103860222A (en) * | 2012-12-18 | 2014-06-18 | 苏州天臣国际医疗科技有限公司 | Linear suturing/cutting device |
| WO2014094563A1 (en) * | 2012-12-18 | 2014-06-26 | 苏州天臣国际医疗科技有限公司 | Straight stitching and cutting device |
| CN103860222B (en) * | 2012-12-18 | 2016-05-04 | 苏州天臣国际医疗科技有限公司 | A kind of straight line stitching instrument cutter sweep |
| CN109953785A (en) * | 2017-12-14 | 2019-07-02 | 苏州天臣国际医疗科技有限公司 | Nail bin groupware and the Medical stapler for using the nail bin groupware |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102058421B (en) | 2012-04-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |