CN100586384C - Empty nail cabin self-locking device of straight line cutting anastomat - Google Patents
Empty nail cabin self-locking device of straight line cutting anastomat Download PDFInfo
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- CN100586384C CN100586384C CN200810021528A CN200810021528A CN100586384C CN 100586384 C CN100586384 C CN 100586384C CN 200810021528 A CN200810021528 A CN 200810021528A CN 200810021528 A CN200810021528 A CN 200810021528A CN 100586384 C CN100586384 C CN 100586384C
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- cutter
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- safety
- locking device
- lock face
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Abstract
The invention discloses an empty nail bin self-locking device of a linear cutting stapler, comprising a locking block which is provided with an unlocking position which is not contacted with the cutter and a locking position which pushes through the cutter in the front and rear direction, a locking keeping mechanism which leads the locking block to have the trend of rotating towards the locking position, and an insurance part which is provided with a safety device; when the insurance part is arranged at the insurance position, the locking block is arranged at the unlocking position; the emptynail bin self-locking device also comprises a position limit mechanism which can resist the applying force of the locking keeping mechanism and leads the insurance part to be fixed on the insurance position, and an operation mechanism which leads the insurance part to be disconnected from the insurance position by pushing through the cutter in the front and rear direction. The empty nail bin self-locking device of the linear cutting stapler of the embodiment of the invention has the advantages of simple structure, high reliability, simple usage and low execution cost.
Description
Technical field
The present invention relates to a kind of medical apparatus that in surgical operation, uses, more specifically, relate to a kind of linear cutting anastomat.
Background technology
Linear cutting anastomat is to use a class apparatus quite widely in the reconstruction of digestive tract art, and it is identical and function such as close that it can finish tissue.
In clinical use, this apparatus will repeatedly be used by heavily loaded nail bin, as not have empty nail bin protection structure, just in case being loaded onto apparatus once more, empty nail bin reuses, then can cause cutter with tissue dissection or cut-out, but the serious consequence of failing to sew on.Therefore, for after the empty nail bin that the doctor will have been pulled the trigger loads onto apparatus once more, can not pull the trigger apparatus again, one of basic design principle of linear cutting anastomat is exactly that empty nail bin must be lockable.
U.S. Pat 5878938 discloses a kind of empty nail cabin self-locking device, and this device is by the chimeric realization locking of elastic component and concave-convex-piece, but its structure more complicated.
Summary of the invention
The object of the present invention is to provide a kind of empty nail cabin self-locking device of simple in structure, linear cutting anastomat that reliability is high.
To achieve the above object of the invention, the present invention takes following technical scheme:
A kind of empty nail cabin self-locking device of linear cutting anastomat, described linear cutting anastomat comprises: the nail bin that extends along fore-and-aft direction, the cutter that slides along fore-and-aft direction of this nail bin, the handle that pushes away that is used to promote this cutter slip relatively.Described empty nail cabin self-locking device comprises: lock dog, this lock dog possess not with the contacted unlocked position of described cutter and with the described cutter inconsistent latched position that makes progress in front and back; Mechanism is kept in the locking that makes described lock dog possess the trend of rotating towards described latched position; Safety piece, this safety piece possesses safety position, and when described safety piece was on the described safety position, described lock dog was on the described unlocked position; Can the described locking of antagonism keep the active force of mechanism, described safety piece is fixed on position-limit mechanism on the described safety position; By with the described cutter inconsistent operating mechanism that makes described safety piece leave described safety position that makes progress in front and back.
Described lock dog rotates with described nail bin around first turning cylinder of the level of extending along the width of described nail bin and is connected, described lock dog possesses first lock face, described cutter possesses second lock face that faces the place ahead, when described lock dog was in latched position, described first lock face and described second lock face were inconsistent.
Described safety piece is connected around rotating with described nail bin with second turning cylinder that described first turning cylinder parallels, described safety piece possesses the 3rd lock face, described lock dog possesses the 4th lock face that faces the top, when described safety piece was in safety position, described the 3rd lock face and described the 4th lock face were inconsistent.
The lever that described safety piece is is fulcrum with described second turning cylinder, described the 3rd lock face is positioned at an end of this lever, possess in the other end of this lever can with described cutter the 5th inconsistent confined planes that makes progress in front and back.
Described position-limit mechanism is positioned at the other end of described lever.Described position-limit mechanism comprises first pit and the positive stop lug boss that is separately positioned on described safety piece and the described nail bin, when described safety piece is in safety position, and described first pit and described positive stop lug boss tabling.
It is spring or extension spring that mechanism is kept in described locking.
Empty nail cabin self-locking device according to linear cutting anastomat of the invention process is simple in structure, and the reliability height use simply, and implementation cost is lower.
Description of drawings
Accompanying drawing 1 is for having used the front view of linear cutting anastomat of the present invention when not pulling the trigger;
Accompanying drawing 2 is for having used the front view of linear cutting anastomat of the present invention after percussion finishes;
Accompanying drawing 3 is the axonometric chart of lever;
Accompanying drawing 4 is the axonometric chart of lock dog.
Wherein: 10, nail bin; 20, cutter; 30, push away handle; 40, empty nail cabin self-locking device; 41, lock dog; 42, lever; 42a, first end; 42b, the second end; 43, extension spring; 44, first pit; 45, second pit; 46, positive stop lug boss; 1, first lock face; 2, second lock face; 3, the 3rd lock face; 4, the 4th lock face; 5, the 5th confined planes; 6, the 6th confined planes; A, first turning cylinder; B, second turning cylinder.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Linear cutting anastomat comprises: along the nail bin 10 of fore-and-aft direction extension; Nail bin 10 is along the cutter 20 of fore-and-aft direction slip relatively; Be used to promote that cutter 20 slides pushes away handle 30; According to empty nail cabin self-locking device of the invention process.
As shown in Figures 1 and 2, empty nail cabin self-locking device 40 is by lock dog 41, form as lever 42, the extension spring 43 of safety piece.
Wherein, the first turning cylinder a of the level that lock dog 41 and nail bin 10 extend around the width along nail bin 10 rotates and is connected, and possesses unlocked position and latched position.In the accompanying drawing 1, lock dog 41 is in the unlocked position, and this moment, the position of lock dog 41 was lower than cutter 20, can not influence cutter 20 to front slide.In the accompanying drawing 2, lock dog 41 is in latched position, at this moment, is positioned at first lock face 1 on the lock dog 41 with to be positioned at second lock face that cuts on 20 inconsistent, makes the cutter 20 can not be to front slide.
The lower end of extension spring 43 and nail bin 10 are inconsistent, and upper end and lock dog 41 are inconsistent, push lock dog 41 to latched position.
Rotating around the second turning cylinder b with nail bin 10 as the lever 42 of safety piece is connected, and this second turning cylinder b parallels with the first turning cylinder a.The fulcrum of lever 42 is the second turning cylinder b, possesses the 3rd lock face 3 on the first end 42a of lever 42, possesses the 5th lock face 5 on the second end 42b.
The leading section of lock dog 41 forwards stretches out, and the upper surface of this extension is the 4th lock face 4.Lever 42 is possess safety position when fulcrum rotates, and when lever 42 was on the safety position, the 4th lock face 4 and the 3rd lock face 3 were inconsistent, and lock dog 41 is pressed to the below, and it is in the unlocked position.
Empty nail cabin self-locking device 40 also comprises a position-limit mechanism, and this position-limit mechanism comprises the positive stop lug boss 46 that is arranged on the lever 42 the second end 42b, is positioned at first pit 44 and second pit 45 on the nail bin 10.When lever 42 was on the safety position, positive stop lug boss 46 was embedded in first pit 44; After lever 42 broke away from from safety position and rotates to an angle, positive stop lug boss 46 can embed in second pit 45.
The effect of position-limit mechanism is that safety piece is fixed on the safety position, prevents safety piece and waits accident to be separated from from safety position because transportation is jolted, and causes nail bin 10 to be locked too early, even the situation that causes full nail to pull the trigger.
Front end at cutter 20 also possesses the 6th lock face 6, and when lever 42 was on the safety position, the 5th lock face 5 was relative with the 6th lock face 6.Therefore when cutter 20 slides towards the place ahead, the 6th lock face 6 can be inconsistent with the 5th lock face 5, thereby push the other end of lever 42 to the place ahead, thereby the first end 42a of lever 42 is rotated along counter clockwise direction around fulcrum, the 3rd lock face 3 separates with the 4th lock face 4, and lock dog 41 goes to latched position from unlocked position.
As mentioned above, we are illustrated according to aim of the present invention fully, but the present invention is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought permission of the present invention.
Claims (4)
1, a kind of empty nail cabin self-locking device of linear cutting anastomat, described linear cutting anastomat comprises: the nail bin (10) that extends along fore-and-aft direction, relatively the cutter (20) that slides along fore-and-aft direction of this nail bin (10), be used to promote this cutter (20) slip push away handle (30), it is characterized in that:
Described empty nail cabin self-locking device (40) comprises:
Lock dog (41), this lock dog (41) possess not with the contacted unlocked position of described cutter (20) and with described cutter (20) the inconsistent latched position that makes progress in front and back;
Mechanism is kept in the locking that makes described lock dog (41) possess the trend of rotating towards described latched position;
Safety piece, this safety piece possesses safety position, and when described safety piece was on the described safety position, described lock dog (41) was on the described unlocked position;
Can the described locking of antagonism keep the active force of mechanism, described safety piece is fixed on position-limit mechanism on the described safety position;
By with described cutter (20) the inconsistent operating mechanism that makes described safety piece leave described safety position that makes progress in front and back;
Described lock dog (41) rotates with described nail bin (10) around first turning cylinder (a) of the level of extending along the width of described nail bin (10) and is connected,
Described lock dog (41) possesses first lock face (1), described cutter (20) possesses second lock face (2) that faces the place ahead, when described lock dog (41) when being in latched position, described first lock face (1) is inconsistent with described second lock face (2);
Described safety piece is connected around rotating with described nail bin (10) with second turning cylinder (b) that described first turning cylinder (a) parallels,
Described safety piece possesses the 3rd lock face (3), and described lock dog (41) possesses the 4th lock face (4) that faces the top, and when described safety piece was in safety position, described the 3rd lock face (3) was inconsistent with described the 4th lock face (4).
2, the empty nail cabin self-locking device of linear cutting anastomat according to claim 1, it is characterized in that: described safety piece is to be the lever (42) of fulcrum with described second turning cylinder (b), described the 3rd lock face (3) is positioned at an end of this lever (42), possesses in the other end of this lever (42) to make progress the 5th lock face (5) inconsistent in front and back with described cutter (20).
3, the empty nail cabin self-locking device of linear cutting anastomat according to claim 2 is characterized in that: described position-limit mechanism is positioned at the other end of described lever (42).
4, according to the empty nail cabin self-locking device of claim 1 or 3 described linear cutting anastomats, it is characterized in that: described position-limit mechanism comprises first pit (44) and positive stop lug boss (46) that is separately positioned on described safety piece and the described nail bin (10), when described safety piece is in safety position, described first pit (44) and described positive stop lug boss (46) tabling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021528A CN100586384C (en) | 2008-07-30 | 2008-07-30 | Empty nail cabin self-locking device of straight line cutting anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021528A CN100586384C (en) | 2008-07-30 | 2008-07-30 | Empty nail cabin self-locking device of straight line cutting anastomat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101352362A CN101352362A (en) | 2009-01-28 |
| CN100586384C true CN100586384C (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021528A Active CN100586384C (en) | 2008-07-30 | 2008-07-30 | Empty nail cabin self-locking device of straight line cutting anastomat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100586384C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102058421B (en) * | 2010-12-16 | 2012-04-11 | 苏州天臣国际医疗科技有限公司 | Linear cutting and stitching instrument |
| 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 |
| US9888921B2 (en) * | 2013-03-13 | 2018-02-13 | Covidien Lp | Surgical stapling apparatus |
| US10898197B2 (en) * | 2018-02-06 | 2021-01-26 | Ethicon Llc | Releasable coupling features for proximal portions of linear surgical stapler |
| CN111801055A (en) * | 2018-03-02 | 2020-10-20 | 柯惠有限合伙公司 | Surgical stapling instrument |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892244A (en) * | 1988-11-07 | 1990-01-09 | Ethicon, Inc. | Surgical stapler cartridge lockout device |
-
2008
- 2008-07-30 CN CN200810021528A patent/CN100586384C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892244A (en) * | 1988-11-07 | 1990-01-09 | Ethicon, Inc. | Surgical stapler cartridge lockout device |
| US4892244B1 (en) * | 1988-11-07 | 1991-08-27 | Ethicon Inc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101352362A (en) | 2009-01-28 |
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Assignee: Suzhou Frankenman Medical Equipment Co., Ltd. Assignor: Weng Zhiqiang Contract record no.: 2011320000070 Denomination of invention: Empty nail cabin self-locking device of straight line cutting anastomat Granted publication date: 20100203 License type: Exclusive License Open date: 20090128 Record date: 20110223 |
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| ASS | Succession or assignment of patent right |
Owner name: SUZHOU FRANKENMAN MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: WENG ZHIQIANG Effective date: 20111116 |
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Effective date of registration: 20111116 Address after: High tech Zone in Suzhou city of Jiangsu province Jinfeng Road 215011 No. 88 Patentee after: Suzhou Frankenman Medical Equipment Co., Ltd. Address before: High tech Zone in Suzhou city of Jiangsu province Jinfeng Road 215011 No. 88 Suzhou frankenman Medical Equipment Co. Ltd. in Patentee before: Weng Zhiqiang |