CN104224259B - Disposable internal opening cutting and enclosing anastomat - Google Patents
Disposable internal opening cutting and enclosing anastomat Download PDFInfo
- Publication number
- CN104224259B CN104224259B CN201410467345.8A CN201410467345A CN104224259B CN 104224259 B CN104224259 B CN 104224259B CN 201410467345 A CN201410467345 A CN 201410467345A CN 104224259 B CN104224259 B CN 104224259B
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- Prior art keywords
- nail
- nail bin
- support
- anastomat
- gun
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
- A61B2017/00663—Type of implements the implement being a suture
-
- 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
- A61B2017/07285—Stapler heads characterised by its cutter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0807—Indication means
- A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
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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 relates to the technical field of disposable anastomats, in particular to a disposable internal opening cutting and enclosing anastomat. The disposable internal opening cutting and closing anastomat comprises a cutting molding assembly, a transmission assembly and a gun body provided with a triggering assembly, wherein the cutting molding assembly comprises a nail cabin bracket, a scalpel support ring, a nail pressing seat, a nail pushing device, a nail cabin support and a nail cabin; the nail cabin is clamped in a clamping groove of the nail cabin support through a buckle; the nail cabin support is directly connected with the gun body through the transmission assembly; the head of the nail cabin is circular-arc-shaped or parabolic; nail grooves of the nail cabin are of asymmetrical mode; the transmission assembly comprises a transmission lead screw; the lead screw is a large-screw-pitch left-handed lead screw; the tail end of the lead screw is connected with a corresponding lengthened nut assembly; the lengthened nut assembly and a knob positioned at the tail end of the gun body are molded together by injecting or embedded together; the gun body is a lever type or connecting-rod-type gun body. The disposable internal opening cutting and enclosing anastomat is skillful in design, and has a good application prospect; by adopting the disposable internal opening cutting and enclosing anastomat, a plurality of use problems in the prior art can be solved effectively.
Description
Technical field
The present invention relates to disposable stapling technique in anus reservation field, especially a kind of single use internal orifice is cut and is closed anastomat.
Background technology
On market, existing various types of anastomats, are widely used in each several part group of coincided with human body in surgical operation
Knit, it is possible to reduce operating time, improve surgical quality, anastomotic stoma is solid and reliable, and haemostatic effect is good.
But existing circle Endo-GIA is in use, still suffers from problems：
First, in existing structure, nail bin is cylindrically shaped, and there is obstruction in its visual field it is impossible to form open surgical field of view,
And wound surface Oversewing space face is less it has not been convenient to medical personnel operate；
Second, the nail groove on existing nail bin is typically symmetrical arranged, and is 2 queuing closure wound surface+0 queuing cutting tissue wounds
Surface model.In actual use, wound surface size differs, and the suture wound surface of usual anastomat head is 1 centimeter～1.5 public affairs
Divide it is assumed that under 1 centimeter of suture wound surface, 2 conventional nail-arranging slots typically only have 5 pieces of suturing nails, and sewing density is less, such
Still easily bleeding it is impossible to bear 220 mmhg pressure problems in suture wound surface；
3rd, when conventional round anastomat sutures, it is all nail supporting base motion, nail bin does not move, thus biography to be changed
System screw rod direction of rotation, does not change the operating habit of doctor, is that comparison is inconvenient for nervous operation process；
4th, it is non-dismountable connection between existing nail bin and nail supporting base and nail supporting base and the body of a gun, user of service
Can not realizing self disassembling, especially nail bin can not independently be changed, and can only entirely anastomat change, equipment consumption is larger when to be changed.
Content of the invention
In order to overcome above-mentioned many use problems, the invention provides a kind of single use internal orifice is cut and is closed anastomat.
The technical solution adopted for the present invention to solve the technical problems is：A kind of single use internal orifice is cut and is closed anastomat,
Including excision forming assembly, transmission component and the body of a gun with percussion assembly, described excision forming assembly includes nail bin support, pad
Cutter ring, nail supporting base, nail pushing device, nail bin support and nail bin, described nail bin stent ends install knife washer, nail supporting base, nail pushing device successively,
Nail bin is stuck in the draw-in groove of nail bin support by buckle, and nail bin support is directly connected with the body of a gun by transmission component；Described nail bin head
In circular arc or parabolic type, and the nail groove of nail bin is arranged as asymmetric or symmetric pattern；Described transmission component includes a biography
Dynamic screw mandrel, screw mandrel is the left-handed screw mandrel of big pitch, and this screw mandrel end is connected with corresponding lengthening formula nut assembly, lengthens formula nut
Assembly and the knob positioned at body of a gun end are molded or together with inlaying.It is related to four innovative points, one is this in this programme
The nail bin of invention is stuck in the draw-in groove of nail bin support by buckle, and nail bin can freely be dismantled；Two be nail bin support directly and transmission component
Connect, transmission component operationally can push directly on the work of nail bin support, and then promote nail bin work；Three is the nail bin head of the present invention
The shape design in portion and nail groove arrangement design, can increase wound surface suture area, reduce bleeding during suture；Four is for coordinating nail bin
The left-handed screw mandrel moving and designing, conventional is dextrorotation screw mandrel, but when promoting nail bin to travel forward, right-handed thread screw mandrel needs are inverse
To rotation, violate the conventional use habit of medical personnel, therefore be operation safety, be adjusted to left hand thread screw mandrel, meanwhile, be furnished with and add
Long metal nuts assembly, to ensure linearity during precession it is ensured that the direction of power does not bend, not to change.
According to another embodiment of the invention, further include, the asymmetric mode of described nail groove arrangement is that 3 queuings are closed
Close wound surface+1 queuing cutting tissue wound surface pattern, 2 queuing closure wound surface+1 queuing cutting tissue wound surface patterns, symmetric pattern is 2
Queuing closure wound surface+2 is queued up to cut and organizes wound surface pattern or 3 queuing closure wound surface+3 to queue up to cut and organize wound surface pattern.We
The nail groove arrangement of multiple asymmetric or symmetric patterns, under same 1 centimeter of suture distance, the suture of this programme is employed in case
Mouth quantity can significantly improve, and such as 3 queuing closure wound surface+1 queuings are cut tissue wound surface patterns and sutured mouths, sewing density up to 8 pieces
Greatly, it is effectively reduced bleeding.
According to another embodiment of the invention, further include, described transmission component includes manual reset button, outer clip
Board slot, inner clip board slot, screw mandrel, the knob being molded with lengthening formula nut assembly, push broach plate, nail support, adapter sleeve, holding support and lead
Pin；Described inner clip board slot is directly welded with nail bin support, and inner clip board slot is placed in outer clip board slot, and manual reset button is placed in inner splint
In groove, the side wall of manual reset button is provided with pivot pin chute one, and the side wall of inner clip board slot is provided with pivot pin chute two, and pivot pin is worn
Cross pivot pin chute one, the installation of manual reset button realized by pivot pin chute two；Described screw mandrel is fixed on the silk of inner clip board slot end
Promote nail bin delivery dynamic in bar draw-in groove；It is additionally provided with nail support, adapter sleeve, holding support and pilot pin with the plate of described push broach plate.We
Case is a kind of connected mode of transmission component, and it is most particularly provided with SR, and this SR can conveniently realize nail bin
Multiple installation.
According to another embodiment of the invention, further include, pivot pin chute two one end of described inner clip board slot is big, one
End is little, and big one end is provided with the inclined-plane blocking SR, and little one end is locked position of coupler, and big one end is open position.This
Scheme is the art chute designs of SR, its make SR to open position mobile when enable to lock, when pressing from inclined-plane
When lower, recovery can be moved to locked position of coupler.
According to another embodiment of the invention, further include, the described body of a gun is the lever body of a gun, this body of a gun includes pressing from both sides
Board shaft, push broach plate, lock tube, pushing block, housing, knob and firing device；Described clamping plate axle front end is arranged on transmission component, end
End is provided with, by the housing locking of lock tube and the body of a gun, described housing, pushing block, knob and the firing device controlling percussion.We
The body of a gun adopting in case is the lever body of a gun, and the knob of its end can improve suture time gap to the mobile precise control of nail bin
Accuracy, and the body of a gun is easy to hold, and meets the use habit of medical personnel.
The invention has the beneficial effects as follows,
（1）The present invention effectively narrow position of minimizing, wound surface Oversewing space is big, and asymmetrical closure end face and excision end face design
Sewing density can be effectively increased, less blood outlet, solve the bleeding problems of conventional anastomat；Parabolical nail bin head design,
Expand wound surface Oversewing space, be more suitable for human organ；
（2）During present invention work, nail bin head does movement, goes to ensure that using of medical personnel is practised using left-handed screw mandrel simultaneously
Used, effectively reduce the opening time of apparatus during operation uses, improve work efficiency it is ensured that operation safety；
（3）The nail bin of the present invention and nail supporting base are detachable design, and medical personnel can independently be dismantled, and changes nail bin
Head, easy to operate, decrease the consuming of medical device；
The present invention strictly observes and meets the use habit of medical personnel, ensure that the safety of scalpel, and can
Operation accuracy is provided, improves suture precision.
Brief description
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the partial exploded view of the present invention.
Fig. 3 is the overall explosive view of the present invention.
Fig. 4 is the nail bin head construction schematic diagram of the present invention.
In figure, 100, excision forming assembly, 200, transmission component, 300, the body of a gun, 1, nail bin support, 2, knife washer, 3,
Nail supporting base, 4-4, manual reset button, 5, nail pushing device, 6, push broach plate, 7, nail bin, 7-1, nail support, 7-2, adapter sleeve, 7-3, correcting
Seat, 7-4, pilot pin, 7-5, insert groove, 7-8, nail groove, 8, lock tube, 9, pushing block, 10, housing, 11, knob, 12, firing device, 13,
Clamping plate axle, 14, nail bin support, 11-11, outer clip board slot, 12-12, inner clip board slot, 13-13, pivot pin chute one, 14-14, pivot pin are slided
Groove two, 15-15, pivot pin, 16, screw mandrel, 17, lengthen formula nut assembly, 18, screw mandrel draw-in groove, 101, draw-in groove, 201, buckle.
Specific embodiment
Below in conjunction with the accompanying drawings 1～4 and embodiment the present invention is further illustrated.
As shown in Figure 1, 2, 3, single use internal orifice is cut and is closed anastomat, including excision forming assembly 100, transmission component
200 and with percussion assembly the body of a gun 300, described excision forming assembly 100 include nail bin support 1, knife washer 2, nail supporting base 3,
Nail pushing device 5, nail bin support 14 and nail bin 7, described nail bin support 1 end installs knife washer 2, nail supporting base 3, nail pushing device 5, nail bin successively
7 are stuck in the draw-in groove 101 of nail bin support 14 by buckle 201, and nail bin support 14 is directly connected with the body of a gun 300 by transmission component 200.
In the present embodiment, transmission component 200 can push directly on nail bin 7 and move, and due to being to snap connection, nail bin 7 can be easily from nail
Take off in storehouse support 14.Select excellently, in the present embodiment, transmission component 200 is detachable transmission component, and transmission component 200 is main
By manual reset button 4-4, outer clip board slot 11-11, inner clip board slot 12-12, screw mandrel 16, it is molded with the rotation of lengthening formula nut assembly
The compositions such as button 11, push broach plate 6, nail support 7-1, adapter sleeve 7-2, holding support 7-3 and pilot pin 7-4.Push broach plate 6 in transmission component
Plate with set nail support 7-1, adapter sleeve 7-2, holding support 7-3 and pilot pin 7-4, holding support 7-3 promotes pilot pin 7-4 insertion to support nail
It is ensured that nail bin 7 is symmetrical up and down with nail bin support 1 in groove.Inner clip board slot 11-11 is directly connected with nail bin support 14, inner splint
Groove 12-12 is placed in outer clip board slot 11-11, and manual reset button 4-4 is placed in inner clip board slot 11-11, the side wall of pushing block 4-4
It is provided with pivot pin chute one 13-13, the side wall of inner clip board slot 12-12 is provided with pivot pin chute two 14-14, described inner clip board slot 12-
12 pivot pin chute two 14-14 one end is big, and one end is little, and big one end is provided with the inclined-plane blocking SR 4-4, and little one end is
Locked position of coupler, big one end is open position.Pivot pin 15-15 passes through pivot pin chute one 13-13, pivot pin chute two 14-14 to realize
Manual reset button 4-4 is slidably connected.Operationally, manual reset button 4-4 moves along direction shown in accompanying drawing 1, moves to
Big one end, by chamfer recess bayonet socket, now nail bin can freely take off, after group loads onto new nail bin, press hand-reset by
Button 4-4, manual reset button 4-4 falls, and back promotes, and props up nail bin, locks nail bin.Product of the present invention is cut open when dispatching from the factory
Mouth has first reached position, and at present for 19.5mm, when medical personnel carry out surgical work, only need to push directly on nail bin to close tissue is
Can, decrease the opening time of conventional anastomat nail storehouse seat in operation process.Certainly, nail bin is directly connected except engaging with nail bin support
Connecing outer, also can be selected for the non-dismountable formula of routine, as long as being directly connected on transmission component, transmission component can directly control nail
Storehouse activity, unrestricted herein.
Because the present invention changes the anastomat mode of operation of routine, during operation, transmission component pushes directly on nail bin work,
And staple cartridge tray does not work, change the direction of motion of routine, because the direction of motion changes, for guarantee medical personnel using habit
Used, therefore the hand of spiral of screw mandrel has been also carried out adjusting, it is designed as the left-handed screw mandrel of big pitch, and connects in this screw mandrel end
Corresponding lengthen formula nut assembly, left-handed screw mandrel can ensure that the use habit of medical personnel does not change, and it is left-handed to be equally that dextrorotation is entered
Go out it is ensured that operation safety, lengthen the linearity that formula nut assembly can ensure screw mandrel precession, so that thrust direction is not changed, do not bend,
Improve the operating accuracy of anastomat.In setting, as shown in Fig. 2 set the positioning of fixing screw mandrel 16 in inner clip board slot 11-11 end
Groove 18, screw mandrel 16 head end finally can be butted in locating slot 18, and screw mandrel 16 end is connected with lengthening formula nut assembly 17, lengthens formula spiral shell
Female assembly 17 and both the knobs 11 positioned at the body of a gun 300 end are molded or together with inlaying, so that propulsion during rotation, nut is not
Can take off.
As shown in figure 4, the another one feature of the present invention is, nail bin 7 head is in circular arc or parabolic type, circular arc type or throwing
The nail bin shape design of thing line is effectively reduced narrow position, makes section Oversewing space become big, and is more suitable for human organ.Work as nail bin
7 use circular arc type when, nail bin support 1 also supports the use the end face of circular arc.The nail groove 7-8 of nail bin 7 is asymmetric or symmetric mould
Formula, it is preferable that nail groove 7-8 adopts asymmetric mode, has four roads, three roads are located at insert groove 7-5 the same side, forms closed end,
It is located at insert groove 7-5 opposite side together, form excision end.Asymmetric closure end face can with the nail bin arrangement design excising end face
Effectively prevent bleeding problems when suturing.
The body of a gun 300 of the present invention is the lever body of a gun, and this body of a gun 300 includes clamping plate axle 13, push broach plate 6, lock tube 8, promotes
Block 9, housing 10, knob 11 and firing device 12；Described clamping plate axle 13 front end is arranged on transmission component 200, and lock tube is passed through in end
8 are locked with the housing 100 of the body of a gun 300, and described housing 10 is provided with pushing block 9, knob 11 and the firing device 12 controlling percussion.
Above-mentioned simply a preferred embodiment of the present invention, wherein, the body of a gun can be the lever body of a gun, the link-type body of a gun, fixed rifle
Body or adjustable salubrity etc., wherein, body of a gun pipette tips can be used in any combination as needed, reaches the use effect being more preferably more suitable for
Really.
Present invention design key is wonderful, and structure is simple, can effectively solving multiple use problems of the prior art, have good
Application prospect.
Claims (4)
1. a kind of single use internal orifice is cut and is closed anastomat, including excision forming assembly（100）, transmission component（200）With carry
The body of a gun of percussion assembly（300）, it is characterized in that, described excision forming assembly（100）Including nail bin support（1）, knife washer（2）、
Nail supporting base（3）, nail pushing device（5）, nail bin support（14）And nail bin（7）, described nail bin support（1）End installs knife washer successively（2）、
Nail supporting base（3）, nail pushing device（5）, nail bin（7）By buckle（201）It is stuck in nail bin support（14）Draw-in groove（101）Interior, nail bin support
（14）Directly pass through transmission component（200）With the body of a gun（300）Connect；Described nail bin（7）Head is in circular arc or parabolic type, and follows closely
Storehouse（7）Nail groove（7-8）It is arranged as asymmetric or symmetric pattern；Described transmission component（200）Including a drive lead screw
（16）, screw mandrel（16）For the left-handed screw mandrel of big pitch, and this screw mandrel（16）End is connected with corresponding lengthening formula nut assembly（17）,
Lengthening formula nut assembly（17）With positioned at the body of a gun（300）The knob of end（11）Both are molded or inlay together；Described biography
Dynamic assembly（200）Including manual reset button（4-4）, outer clip board slot（11-11）, inner clip board slot（12-12）, screw mandrel（16）, note
Mould the knob of lengthening formula nut assembly（11）, push broach plate（6）, nail support（7-1）, adapter sleeve（7-2）, holding support（7-3）, and lead
Pin（7-4）；Described inner clip board slot（11-11）Directly and nail bin support（14）Welding, inner clip board slot（12-12）It is placed in outer clip board slot
（11-11）Interior, manual reset button（4-4）It is placed in inner clip board slot（11-11）Interior, manual reset button（4-4）Side wall set
There is pivot pin chute one（13-13）, inner clip board slot（12-12）Side wall be provided with pivot pin chute two（14-14）, pivot pin（15-15）
Through pivot pin chute one（13-13）, pivot pin chute two（14-14）Realize manual reset button（4-4）Installation；Described screw mandrel
（16）It is fixed on inner clip board slot（11-11）The screw mandrel draw-in groove of end（18）Interior promotion nail bin support（14）Motion；Described push broach plate（6）
Plate be additionally provided with nail support（7-1）, adapter sleeve（7-2）, holding support（7-3）, and pilot pin（7-4）.
2. the single use internal orifice according to claim 1 is cut and is closed anastomat, it is characterized in that, described nail groove（7-8）Arrangement
Asymmetric mode is had to be 2 queuing closure wound surface+1 queuing cutting tissue wound surface patterns, symmetric pattern 3 queuing closure wound surface+1
Wound surface pattern is organized in cutting of queuing up；Described symmetric pattern for 2 queue up closure wound surface+2 queue up cutting tissue wound surface patterns or
3 queue up closes wound surface+3 queuing cutting tissue wound surface pattern.
3. single use internal orifice according to claim 1 is cut and is closed anastomat, it is characterized in that, described inner clip board slot（12-
12）Pivot pin chute two（14-14）One end is big, and one end is little, and big one end is provided with blocks SR（4-4）Inclined-plane, little
One end is locked position of coupler, and big one end is open position.
4. the single use internal orifice according to claim 1 is cut and is closed anastomat, it is characterized in that, the described body of a gun（300）For thick stick
Rod-type or the link-type body of a gun, this body of a gun（300）Including clamping plate axle（13）, push broach plate（6）, lock tube（8）, pushing block（9）, housing
（10）, knob（11）, and firing device（12）；Described clamping plate axle（13）Front end is arranged on transmission component（200）On, lock is passed through in end
Set（8）With the body of a gun（300）Housing（10）Locking, described housing（10）It is provided with the pushing block controlling percussion（9）, knob
（11）, and firing device（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467345.8A CN104224259B (en) | 2014-09-15 | 2014-09-15 | Disposable internal opening cutting and enclosing anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467345.8A CN104224259B (en) | 2014-09-15 | 2014-09-15 | Disposable internal opening cutting and enclosing anastomat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104224259A CN104224259A (en) | 2014-12-24 |
| CN104224259B true CN104224259B (en) | 2017-02-08 |
Family
ID=52213785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410467345.8A Active CN104224259B (en) | 2014-09-15 | 2014-09-15 | Disposable internal opening cutting and enclosing anastomat |
Country Status (1)
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| CN (1) | CN104224259B (en) |
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| CN106308864B (en) * | 2016-08-31 | 2018-12-18 | 江苏钱璟医疗器械有限公司 | The asymmetric annular cutting anastomat of tooth trace |
| CN109009285B (en) * | 2018-08-26 | 2023-06-13 | 江苏孜航精密五金有限公司 | Nail-supporting seat rotary connecting device of disposable arc-shaped cutting anastomat |
| CN109009283B (en) * | 2018-08-26 | 2023-06-13 | 江苏孜航精密五金有限公司 | Nail bin transmission mechanism of disposable arc-shaped cutting anastomat |
| CN109009284B (en) * | 2018-08-26 | 2023-06-23 | 江苏孜航精密五金有限公司 | Replaceable nail bin assembly of disposable arc-shaped cutting anastomat |
| WO2022006804A1 (en) * | 2020-07-09 | 2022-01-13 | Covidien Lp | Safety feature for surgical stapling instrument |
| CN112472178A (en) * | 2020-11-30 | 2021-03-12 | 常州安康医疗器械有限公司 | Disposable arc-shaped cutting anastomat |
| BR212023012430U2 (en) * | 2020-12-29 | 2023-11-21 | Touchstone Int Medical Science Co Ltd | SURGICAL STAPLER |
| CN113598859B (en) * | 2021-09-14 | 2024-06-14 | 吴杲 | Semicircular everting anastomat and use method thereof |
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| CN204218962U (en) * | 2014-09-15 | 2015-03-25 | 江苏钱璟医疗器械有限公司 | Single use internal orifice is cut and is closed anastomat |
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2014
- 2014-09-15 CN CN201410467345.8A patent/CN104224259B/en active Active
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| CN104224259A (en) | 2014-12-24 |
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