CN103908312B - The resetting-mechanism of Linear stapling cutter - Google Patents
The resetting-mechanism of Linear stapling cutter Download PDFInfo
- Publication number
- CN103908312B CN103908312B CN201210597146.XA CN201210597146A CN103908312B CN 103908312 B CN103908312 B CN 103908312B CN 201210597146 A CN201210597146 A CN 201210597146A CN 103908312 B CN103908312 B CN 103908312B
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- Prior art keywords
- reset
- linear stapling
- reseting plate
- drag hook
- stapling cutter
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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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of resetting-mechanism of Linear stapling cutter, comprise reset traction piece, the rollback pull bar be connected with described reset traction piece, the tooth bar that can be dynamically connected with described rollback pull bar, also comprise reseting plate and the reset drag hook of integrated molding, described reset drag hook is vertically convexly equipped on described reseting plate, one end of a reset tension spring is had to catch on described reset drag hook, the extension spring that the other end of described reset tension spring catches on described Linear stapling cutter is buckled, and the lower surface of described reseting plate is the contact surface stopping lock dog with the longitudinal direction of described Linear stapling cutter.Beneficial effect of the present invention is: by reseting plate and reset drag hook one-body molded, simple and reliable for structure, easy to assembly, cost reduce.
Description
Technical field
The present invention relates to a kind of Linear stapling cutter, especially a kind of resetting-mechanism of Linear stapling cutter, belongs to technical field of medical instruments.
Background technology
Current surgical operation is all toward the future development of endoscope operation formula, and such as US Patent No. 7303107 discloses the Linear stapling cutter under a kind of endoscope operation formula.This Linear stapling cutter drives tooth bar to carry out seaming and cutting by ratchet, and resetting-mechanism during reset adopts reseting plate and reset drag hook two independently part, and reset drag hook is connected on reseting plate by a connector, and complex structure, assembly difficulty is large.
Content described in this patent is quoted as prior art by the present invention.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, provides the resetting-mechanism of the simple Linear stapling cutter of a kind of structure.
Technical scheme of the present invention is:
A kind of resetting-mechanism of Linear stapling cutter, comprise reset traction piece, the rollback pull bar be connected with described reset traction piece, the tooth bar that can be dynamically connected with described rollback pull bar, also comprise reseting plate and the reset drag hook of integrated molding, described reset drag hook is vertically convexly equipped on described reseting plate, one end of a reset tension spring is had to catch on described reset drag hook, the extension spring that the other end of described reset tension spring catches on described Linear stapling cutter is buckled, and the lower surface of described reseting plate is the contact surface stopping lock dog with the longitudinal direction of described Linear stapling cutter.
Preferably, described extension spring button is arranged on the tooth bar of described Linear stapling cutter.
Preferably, described reset drag hook is located at the top of described tooth bar.
Preferably, throughly on described reseting plate be provided with at least one reset guide groove, the side of described tooth bar is convexly equipped with at least one pilot pin, and described pilot pin extend in described reset guide groove.
Preferably, throughly on described reseting plate be provided with opening, described rollback pull bar extend in the opening of described reseting plate.
Beneficial effect of the present invention is: by reseting plate and reset drag hook one-body molded, simple and reliable for structure, easy to assembly, cost reduce.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of reseting plate in the embodiment of the present invention one;
Fig. 3 is the schematic diagram of the embodiment of the present invention one when being in the lock state;
Fig. 4 is the schematic diagram of the embodiment of the present invention one when being in reset mode;
Wherein: 1, reseting plate 2, reset drag hook 3, reset guide groove 4, reset tension spring; 5, opening; 6, extension spring button 7, pilot pin 8, longitudinal only lock dog 9, spring 10, rollback pull bar; 11, percussion handle; 12, ratchet; 13, reset traction piece 14, tooth bar.
Detailed description of the invention
Embodiment one: shown in Fig. 1 and Fig. 2, the invention provides a kind of resetting-mechanism of Linear stapling cutter, comprise reset traction piece 13, the rollback pull bar 10 be connected with described reset traction piece, the tooth bar 14 that can be dynamically connected with described rollback pull bar, and the reseting plate 1 of integrated molding and reset drag hook 2.Described reset drag hook 2 is vertically convexly equipped on described reseting plate 1.The lower surface of described reseting plate 1 is the contact surface stopping lock dog 8 (shown in Fig. 3) with the longitudinal direction of described Linear stapling cutter.Because reseting plate 1 and reset drag hook 2 are metal material, therefore the mode of stepping punching press can be adopted to realize one-body molded.Certainly, if reseting plate 1 and reset drag hook 2 are plastic material, integrated injection molding can be adopted.
Have one end of a reset tension spring 4 to catch on described reset drag hook 2, the other end of described reset tension spring 4 catches on the extension spring button 6 of described Linear stapling cutter, and described extension spring button 6 is arranged on the tooth bar 14 of described Linear stapling cutter.Described reset drag hook 2 is located at the top of described tooth bar 14.
Shown in composition graphs 3, Fig. 4, throughly on described reseting plate 1 be provided with at least one reset guide groove 3, the side of described tooth bar 14 is convexly equipped with at least one pilot pin 7, and described pilot pin 7 extend in described reset guide groove 3.Described reset guide groove 3 is in arranging obliquely.Throughly on described reseting plate 1 be provided with opening 5, the part of the rollback pull bar 10 of described Linear stapling cutter extend in described opening 5.
Operating process of the present invention once is simply described below.
As shown in Figure 3, the ratchet 12 in percussion handle 11 drives tooth bar 14 to advance, and now described reseting plate 1 is in the high position in Fig. 3 all the time under the effect of reset tension spring 4, and namely described reseting plate 1 is not interfered tooth bar 14 and longitudinally stopped engaging each other of lock dog 8.Because the side of longitudinally stopping lock dog 8 is subject to the effect of spring 9, therefore it can stop tooth bar 14 rollback with engaging of tooth bar 14, and this hour rack 14 is in only lock status.
As shown in Figure 4, after Linear stapling cutter percussion, rollback pull bar 10 drives reseting plate 1 to move backward, and meanwhile under the effect of reset guide groove 3 and pilot pin 7, reseting plate 1 moves down again, reaches the low level in Fig. 4 like this.The lower surface of described reseting plate 1 forces described longitudinal direction to be stopped, and active force that lock dog 8 overcomes spring 9 moves down, thus make described longitudinal direction stop lock dog 8 to throw off with tooth bar 14, tooth bar 14 now, not by the stop longitudinally stopping lock dog 8, pulls reset traction piece 13 can make tooth bar 14 rollback smoothly.
The present invention still has numerous embodiments, and all employings are equal to replacement or equivalent transformation and all technical schemes of being formed, all drop within the scope of protection of present invention.
Claims (5)
1. the resetting-mechanism of a Linear stapling cutter, comprise reset traction piece (13), the rollback pull bar (10) be connected with described reset traction piece, the tooth bar (14) that can be dynamically connected with described rollback pull bar, it is characterized in that: the reseting plate (1) and the reset drag hook (2) that also comprise integrated molding, described reset drag hook (2) is vertically convexly equipped on described reseting plate (1), one end of a reset tension spring (4) is had to catch on described reset drag hook (2), the other end of described reset tension spring (4) catches on the extension spring button (6) of described Linear stapling cutter, the lower surface of described reseting plate (1) is the contact surface stopping lock dog (8) with the longitudinal direction of described Linear stapling cutter.
2. the resetting-mechanism of Linear stapling cutter according to claim 1, is characterized in that: described extension spring button (6) is arranged on the tooth bar (14) of described Linear stapling cutter.
3. the resetting-mechanism of Linear stapling cutter according to claim 2, is characterized in that: described reset drag hook (2) is located at the top of described tooth bar (14).
4. the resetting-mechanism of Linear stapling cutter according to claim 3, it is characterized in that: described reseting plate (1) is above through is provided with at least one reset guide groove (3), the side of described tooth bar (14) is convexly equipped with at least one pilot pin (7), and described pilot pin (7) extend in described reset guide groove (3).
5. the resetting-mechanism of Linear stapling cutter according to claim 1, it is characterized in that: described reseting plate (1) is above through is provided with opening (5), and described rollback pull bar (10) extend in the opening (5) of described reseting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210597146.XA CN103908312B (en) | 2012-12-29 | 2012-12-29 | The resetting-mechanism of Linear stapling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210597146.XA CN103908312B (en) | 2012-12-29 | 2012-12-29 | The resetting-mechanism of Linear stapling cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103908312A CN103908312A (en) | 2014-07-09 |
| CN103908312B true CN103908312B (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210597146.XA Active CN103908312B (en) | 2012-12-29 | 2012-12-29 | The resetting-mechanism of Linear stapling cutter |
Country Status (1)
| Country | Link |
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| CN (1) | CN103908312B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10918385B2 (en) * | 2016-12-21 | 2021-02-16 | Ethicon Llc | Surgical system comprising a firing member rotatable into an articulation state to articulate an end effector of the surgical system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5865361A (en) * | 1997-09-23 | 1999-02-02 | United States Surgical Corporation | Surgical stapling apparatus |
| CN2494182Y (en) * | 2001-08-17 | 2002-06-05 | 西安朗瑞医疗产品有限公司 | Disposable linear suture device |
| CN202982107U (en) * | 2012-12-29 | 2013-06-12 | 苏州天臣国际医疗科技有限公司 | Reset mechanism of straight stitching and cutting device |
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2012
- 2012-12-29 CN CN201210597146.XA patent/CN103908312B/en active Active
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| Publication number | Publication date |
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| CN103908312A (en) | 2014-07-09 |
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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. |
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