CN108403177A - A kind of stapler with cutting mechanism - Google Patents
A kind of stapler with cutting mechanism Download PDFInfo
- Publication number
- CN108403177A CN108403177A CN201810406544.6A CN201810406544A CN108403177A CN 108403177 A CN108403177 A CN 108403177A CN 201810406544 A CN201810406544 A CN 201810406544A CN 108403177 A CN108403177 A CN 108403177A
- Authority
- CN
- China
- Prior art keywords
- supporting surface
- knife anvil
- cutter
- mentioned
- stapler
- 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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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
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- 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
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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)
- Portable Nailing Machines And Staplers (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of stapler with cutting mechanism, above-mentioned cutting mechanism includes the combination knife anvil for having hollow structure, and said combination knife anvil includes first layer knife anvil, hollow layer and secondary support element.Technical solution of the present invention does secondary support element to the thick tissue and suturing nail that are not switched off, stapler is when firing completion, cutter cutting edge is cut to the supporting surface of secondary support element, when tissue and suturing nail are not completed cut-out because knife anvil collapses, cutter by be cut to secondary support element supporting surface realize to tissue and suturing nail secondary cut, to ensure that tissue and suturing nail are completely severed, a kind of stapler with cutting mechanism provided by the invention is with good cutting performance.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of stapler with cutting mechanism.
Background technology
The cutting mechanism of existing stapler mainly does single support element using knife anvil, and stapler passes through knife anvil in cutting
It does support and realizes cutter cutting tissue and suturing nail.This structure major defect is：Stapler in firing sewing process,
Cutting need to cut off knife anvil, since cutting edge port is easy breakage, thus the plastic material that knife anvil can only use intensity weaker, suture
Nail belongs to metal material, and intensity is higher.Suturing nail category metal material, hardness is higher, and knife anvil uses plastic material, and intensity is weaker, cuts
Cutter is when cutting is compared with thick tissue and the higher suturing nail of intensity, because knife anvil intensity deficiency is easy to collapse so as to cause organizing and stitch
Dowel can not be completely severed.Therefore propose that a kind of stapler with the cutting mechanism for being easy to cutting function seems particularly heavy
It wants.
Invention content
The present invention provides a kind of stapler with cutting mechanism, at least solve in the prior art because of knife anvil intensity not
Foot is easy to collapse the technical issues of can not being completely severed so as to cause tissue and suturing nail.
The present invention provides a kind of stapler with cutting mechanism, above-mentioned cutting mechanism includes the group for having hollow structure
Knife anvil is closed, said combination knife anvil includes first layer knife anvil, hollow layer and secondary support element.
Optionally, above-mentioned first layer knife anvil is thermoset macromolecule material part and/or above-mentioned secondary support element is stainless steel
Metalwork.
Optionally, above-mentioned cutting mechanism includes cutter, and above-mentioned first layer knife anvil includes knife anvil supporting surface, above-mentioned cutter
Tissue is generated on above-mentioned knife anvil supporting surface and is cut for the first time.
Optionally, above-mentioned secondary support element includes secondary supporting surface, after above-mentioned knife anvil supporting surface is cut off, above-mentioned cutting
Knife generates second to tissue on above-mentioned secondary supporting surface and cuts.
Optionally, when above-mentioned stapler fires completion, above-mentioned cutter are mutually squeezed with above-mentioned secondary supporting surface always.
Optionally, above-mentioned knife anvil supporting surface is parallel with above-mentioned secondary supporting surface, above-mentioned knife anvil supporting surface and above-mentioned secondary branch
There are gaps between support face.
Optionally, the height in the gap between above-mentioned knife anvil supporting surface and above-mentioned secondary supporting surface is 2.7 millimeters to 3.3 millis
Rice.
Optionally, the height in the gap between above-mentioned knife anvil supporting surface and above-mentioned secondary supporting surface is 3 millimeters.
Optionally, above-mentioned cutting mechanism further includes resist-nailed seat component, nail pushing device, nail bin, head shell and fires pull rod, on
Combination knife anvil to be stated to connect with above-mentioned resist-nailed seat component by buckling, above-mentioned cutter are connected by a snap in above-mentioned nail pushing device,
Above-mentioned nail bin is fixed on above-mentioned head shell, above-mentioned nail pushing device, above-mentioned nail bin and above-mentioned head shell clearance fit, above-mentioned to support
With above-mentioned percussion pull rod by Clip Reed assembly connection, above-mentioned percussion pull rod is mounted in above-mentioned head shell nail seat component.
Optionally, above-mentioned cutter carry out second on above-mentioned secondary support element under the promotion of above-mentioned nail pushing device to tissue
Secondary cutting.
The present invention provides a kind of staplers with cutting mechanism, for above-mentioned deficiency in the prior art, the present invention
A kind of new cutting mechanism is provided, has increased secondary support element newly in the cutting mechanism, to the thick tissue and seam being not switched off
Dowel does secondary support element, and above-mentioned secondary support element is stainless steel metal part, and stapler when firing completion, cut by cutter cutting edge
It cuts to the supporting surface of secondary support element, when tissue and suturing nail are not completed because knife anvil collapses when cutting off, cutter pass through cutting
Supporting surface to secondary support element realizes the secondary cut to tissue and suturing nail, to ensure that tissue and suturing nail are cut completely
Disconnected, a kind of stapler with cutting mechanism provided by the invention is with good cutting performance.
Description of the drawings
Fig. 1 is a kind of schematic diagram for optional stapler with cutting mechanism that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of schematic diagram for optional combination knife anvil that the embodiment of the present invention 1 provides；
Fig. 3 is the schematic diagram that a kind of optional cutter that the embodiment of the present invention 1 provides are cut on first layer knife anvil；
Fig. 4 is the schematic diagram that a kind of optional cutter that the embodiment of the present invention 1 provides are cut on secondary support element；
Fig. 5 is the enlarged diagram of the local B of Fig. 3；
Fig. 6 is the enlarged diagram of the Local C of Fig. 4.
Specific implementation mode is only that the present invention is a kind of for further illustrating but being not limited to the present invention, following example below
It is preferably carried out mode.
Specific implementation mode
Embodiment 1：
As shown in Figure 1, an embodiment of the present invention provides a kind of stapler with cutting mechanism A, above-mentioned cutting mechanism A packets
Include the combination knife anvil 1 with hollow structure, as shown in Fig. 2, said combination knife anvil 1 include first layer knife anvil 11, hollow layer 12 and
Secondary support element 13.Optionally, above-mentioned first layer knife anvil 11 is thermoset macromolecule material part and/or above-mentioned secondary support element
13 be stainless steel metal part.Above-mentioned voided layer 12 can make cutter after breaking through first layer thermoset macromolecule material support element
Support is lost suddenly, is rushed on second layer stainless steel support element to obtain an acceleration.
As shown in Figures 3 and 4, above-mentioned cutting mechanism further includes cutter 2, resist-nailed seat component 3, nail pushing device 4, nail bin 5, head
Portion's shell 6 and percussion pull rod 7.Said combination knife anvil 1 is connect by buckling with above-mentioned resist-nailed seat component 3, and above-mentioned cutter 2 pass through
It snaps connection and is assemblied in 4 centre bore of nail pushing device, above-mentioned nail bin 5 is by being bonded and fixed on above-mentioned head shell 6, above-mentioned ejector pin
Device 4 and 6 clearance fit of above-mentioned nail bin 5 and above-mentioned head shell, above-mentioned percussion pull rod 7 are mounted on 6 centre bore of above-mentioned head shell
It is interior, with centre bore clearance fit.
Optionally, as shown in figures 2 and 5, above-mentioned cutting mechanism includes cutter 2, and above-mentioned first layer knife anvil 11 includes knife
Anvil supporting surface 111, above-mentioned cutter 2 generate tissue on above-mentioned knife anvil supporting surface 111 and cut for the first time.Optionally, such as Fig. 2
And shown in Fig. 5, above-mentioned secondary support element 13 includes secondary supporting surface 131, above-mentioned after above-mentioned knife anvil supporting surface 111 is cut off
Cutter 2 generate second to tissue on above-mentioned secondary supporting surface 131 and cut.It is above-mentioned when above-mentioned stapler fires completion
Cutter 2 are squeezed with above-mentioned 131 phase of secondary supporting surface always.
Optionally, as shown in Fig. 2, above-mentioned knife anvil supporting surface 111 is parallel with above-mentioned secondary supporting surface 131, above-mentioned knife anvil branch
There are gaps between support face 111 and above-mentioned secondary supporting surface 131.Optionally, above-mentioned knife anvil supporting surface 111 and above-mentioned secondary support
The height in the gap between face 131 is 2.7 millimeters to 3.3 millimeters.Preferably, above-mentioned knife anvil supporting surface 111 and above-mentioned secondary branch
The height in the gap between support face 131 is 3 millimeters.
Above-mentioned cutter 2 carry out tissue second on above-mentioned secondary support element 13 under the promotion of above-mentioned nail pushing device 4
Cutting.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, operation principle of the invention：Stapler is in cock, resist-nailed seat component
3 be kept fixed under the action of firing pull rod 7 it is not movable；Nail bin 5 and head shell 6 are bonded and fixed at stapler device,
It is fixed both when percussion；Nail pushing device 4 can move reciprocatingly under the action of stapler trigger shaft, and cutter 2 pass through buckle
Being fixed in nail pushing device 4 can move back and forth with nail pushing device.Tissue and suturing nail to be cut are in 5 upper surface of nail bin and first layer
Between knife anvil supporting surface 111.Stapler percussion when, cutter 2 under the promotion of nail pushing device 4, cutter 2 operation to tissue and
Suturing nail surface, tissue and suturing nail are since the prevention of first layer knife anvil supporting surface 111 can not move, thus cutter 2 are to group
It knits and suturing nail is generated and cut for the first time.As percussion carries out, the continuation of cutter 2 moves forward, and cutter 2 are to first layer knife anvil
Supporting surface 111, which generates, to cut and cuts off first layer knife anvil supporting surface 111.When organizing thicker and suturing nail intensity higher, by
The generation of 111 intensity deficiency of first layer knife anvil supporting surface collapses, and tissue and suturing nail can not be completely severed, the tissue being not switched off
And suturing nail continues to move forward with cutter 2 under the promotion of cutter 2, when tissue and suturing nail are run extremely with cutter 2
When secondary supporting surface 131, tissue and suturing nail run abort under the prevention of secondary supporting surface 131, and cutter 2 are in nail pushing device
Continue under 4 promotion forward, cutter 2 carry out second to tissue and suturing nail and cut.Secondary supporting surface 131 uses metal material
Material, intensity is high, is cut completely under the secondary cut of cutter 2 compared with the suturing nail of thick tissue and higher-strength to can guarantee
It is disconnected.
The embodiment of the present invention increases the secondary support element of high intensity, and cutter carry out secondary cut to tissue and suturing nail
It cuts, ensures that stapler completely cuts through tissue and suturing nail.Using the secondary support element of high intensity, it is reliable to improve cutting
Property, and ensure that tissue and suturing nail are completely severed.
By above-mentioned cutting mechanism A, stapler in percussion, above-mentioned cutter 2 under the promotion of above-mentioned nail pushing device 4, on
It states cutter 2 and first cuts tissue and suturing nail, and then continue to cut above-mentioned first layer knife anvil 11.When the thicker and suturing nail of tissue is strong
Degree it is higher when, due to above-mentioned 11 intensity deficiency of first layer knife anvil generation collapse, tissue and suturing nail can not be completely severed, not by
The tissue and suturing nail of cut-out continue to move forward with above-mentioned cutter 2 under the promotion of above-mentioned cutter 2, when tissue and suture
Nail with above-mentioned cutter 2 run to above-mentioned secondary supporting surface 131 when, tissue and suturing nail above-mentioned secondary supporting surface 131 resistance
Only run abort down, and above-mentioned cutter 2 continue forward under the promotion of above-mentioned nail pushing device 4, to which above-mentioned cutter 2 are right again
Tissue and suturing nail are cut.Above-mentioned secondary support element 13 uses metal material, intensity high, to can guarantee compared with thick tissue and
The suturing nail of higher-strength is completely severed under the secondary cut of above-mentioned cutter 2.In the prior art, due to stapler entirety
Reasons in structure cutter cutting edge cannot be run to the supporting surface of resist-nailed seat, and cutter can not be completed to carry out two to tissue and suturing nail
Secondary cutting, to ensure to be completed cut-out compared with thick tissue and higher-strength suturing nail.And an embodiment of the present invention provides one
Stapler of the kind with cutting mechanism, changes the internal structure of cutting mechanism in the prior art, especially has hollow structure
Combination knife anvil 1, to solve compared with thick tissue and higher-strength suturing nail cannot be completed cut-out the technical issues of.
Claims (10)
1. a kind of stapler with cutting mechanism, it is characterised in that：The cutting mechanism includes the combination for having hollow structure
Knife anvil (1), the combination knife anvil (1) include first layer knife anvil (11), hollow layer (12) and secondary support element (13).
2. stapler according to claim 1, it is characterised in that：The first layer knife anvil (11) is thermosetting polymer material
Materials and parts and/or the secondary support element (13) are stainless steel metal part.
3. stapler according to claim 1, the cutting mechanism includes cutter (2), it is characterised in that：Described first
Layer knife anvil (11) includes knife anvil supporting surface (111), and the cutter (2) generate tissue on the knife anvil supporting surface (111)
It cuts for the first time.
4. stapler according to claim 3, it is characterised in that：The secondary support element (13) includes secondary supporting surface
(131), after the knife anvil supporting surface (111) is cut off, the cutter (2) are on the secondary supporting surface (131) to group
Knit second of cutting of generation.
5. stapler according to claim 4, it is characterised in that：When the stapler fires completion, the cutter
(2) it is mutually squeezed with the secondary supporting surface (131) always.
6. stapler according to claim 4, it is characterised in that：The knife anvil supporting surface (111) and the secondary support
Face (131) is parallel, and there are gaps between the knife anvil supporting surface (111) and the secondary supporting surface (131).
7. stapler according to claim 6, it is characterised in that：The knife anvil supporting surface (111) and the secondary support
The height in the gap between face (131) is 2.7 millimeters to 3.3 millimeters.
8. stapler according to claim 7, it is characterised in that：The knife anvil supporting surface (111) and the secondary support
The height in the gap between face (131) is 3 millimeters.
9. according to claim 1 to any stapler of claim 8, it is characterised in that：The cutting mechanism further includes
Resist-nailed seat component (3), nail pushing device (4), nail bin (5), head shell (6) and percussion pull rod (7), the combination knife anvil (1) pass through
Buckle is connect with the resist-nailed seat component (3), and the cutter (2) are connected by a snap in the nail pushing device (4), the nail
Storehouse (5) is fixed on the head shell (6), and the nail pushing device (4), the nail bin (5) and the head shell (6) gap are matched
It closes, with the percussion pull rod (7) by Clip Reed assembly connection, the percussion pull rod (7) is mounted on the resist-nailed seat component (3)
In the head shell (6).
10. stapler according to claim 9, it is characterised in that：Cutter (2) the pushing away in the nail pushing device (4)
Second is carried out under dynamic to tissue on the secondary support element (13) to cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406544.6A CN108403177A (en) | 2018-04-30 | 2018-04-30 | A kind of stapler with cutting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406544.6A CN108403177A (en) | 2018-04-30 | 2018-04-30 | A kind of stapler with cutting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108403177A true CN108403177A (en) | 2018-08-17 |
Family
ID=63137373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810406544.6A Pending CN108403177A (en) | 2018-04-30 | 2018-04-30 | A kind of stapler with cutting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108403177A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205459A (en) * | 1991-08-23 | 1993-04-27 | Ethicon, Inc. | Surgical anastomosis stapling instrument |
| US5588579A (en) * | 1994-08-25 | 1996-12-31 | United States Surgical Corporation | Anvil for circular stapler |
| CN101912284A (en) * | 2010-08-13 | 2010-12-15 | 李东瑞 | Arc-shaped cutting anastomat |
| CN206080644U (en) * | 2016-07-05 | 2017-04-12 | 苏州天臣国际医疗科技有限公司 | Hammering block subassembly and circumcision anastomat |
| CN106923875A (en) * | 2015-12-31 | 2017-07-07 | 苏州天臣国际医疗科技有限公司 | A kind of operation anastomat |
-
2018
- 2018-04-30 CN CN201810406544.6A patent/CN108403177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205459A (en) * | 1991-08-23 | 1993-04-27 | Ethicon, Inc. | Surgical anastomosis stapling instrument |
| US5588579A (en) * | 1994-08-25 | 1996-12-31 | United States Surgical Corporation | Anvil for circular stapler |
| CN101912284A (en) * | 2010-08-13 | 2010-12-15 | 李东瑞 | Arc-shaped cutting anastomat |
| CN106923875A (en) * | 2015-12-31 | 2017-07-07 | 苏州天臣国际医疗科技有限公司 | A kind of operation anastomat |
| CN206080644U (en) * | 2016-07-05 | 2017-04-12 | 苏州天臣国际医疗科技有限公司 | Hammering block subassembly and circumcision anastomat |
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