CN208388673U - A kind of jaw structure of intracavitary linear cutting anastomat - Google Patents
A kind of jaw structure of intracavitary linear cutting anastomat Download PDFInfo
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- CN208388673U CN208388673U CN201720854092.9U CN201720854092U CN208388673U CN 208388673 U CN208388673 U CN 208388673U CN 201720854092 U CN201720854092 U CN 201720854092U CN 208388673 U CN208388673 U CN 208388673U
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- jaw
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- cutter
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- lower jaw
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Abstract
A kind of jaw structure of intracavitary linear cutting anastomat, including upper jaw, lower jaw and cutter, the upper surface of the cutter and upper jaw mobile connection, the lower end surface of cutter and lower jaw mobile connection, in the cavity under the not used original state of linear cutting anastomat, the cutter are located between the root of upper jaw and the root of lower jaw, it is characterized by: the root of the upper jaw and the root two sides of lower jaw are equipped with rotation connection structure, the rotation connection structure is made of arc groove and arc-shaped convex ribs, one of arc groove and arc-shaped convex ribs are located on the root of the upper jaw, another one is located on the root of the lower jaw, arc-shaped convex ribs are embedded in arc groove；The arc core of the arc groove is located at except the jaw structure.The intensity and operation stability of the cutter of the jaw structure of the utility model are more preferable, it is ensured that product in clinical application safe and effective.
Description
Technical field
The utility model relates to intracavitary linear cutting anastomat fields, and in particular to a kind of intracavitary linear cutting anastomat
Jaw structure is suitable for alimentary canal surgery stitching operation.
Background technique
Stapler be medically use substitution manual suture equipment, main operational principle be using staple to organize into
Row detachment is coincide, and stapler is similar to.Stapler is many kinds of, is divided into linear cutting anastomat, circle according to shape difference
Stapler, arc-shaped cutting anastomat, button-like anastomosis clamp and back-shaped needle-shaped anastomosis clamp etc..Intracavitary linear cutting anastomat is a kind of
Alimentary canal needle holder being applied to surgery Minimally instrument.The nail bin of intracavitary linear cutting anastomat connect to form jaw structure with nail-plate is supported, therefore,
Nail bin is called lower jaw, is called upper jaw to nail-plate, and the root of upper jaw and the root of lower jaw are hinged by pin shaft, that is,
It says, the central point that upper jaw is rotated relative to lower jaw is on the root of lower jaw.One is equipped between upper jaw and lower jaw
Be equipped with guide groove on I-shaped cutter, upper jaw and lower jaw, the upper and lower end faces of cutter by guide groove respectively with upper jaw,
Lower jaw mobile connection.Initially, upper jaw and lower jaw in opened condition, root of the cutter between upper jaw and lower jaw
Portion, when cutter start to move along guide groove, the upper surface of cutter will drive upper jaw and rotate with respect to lower jaw, into
And both upper jaw and lower jaw are in closed state, clamp physiological tissue, are sutured and are cut to physiological tissue.Currently, by
In the closing open movement of product resist-nailed seat, nail bin, make the knot of cutter there is the obstacle of central pin shaft during exercise
Structure is designed as must get around the form of central pin shaft, needs to slot on the push jack being fixedly connected with cutter rear end, fluting design
It is to avoid central pin shaft, this will largely effect on the stability of the intensity and operation of cutter.
Summary of the invention
The utility model provides a kind of jaw structure of intracavitary linear cutting anastomat, and its object is to solve current chamber
The structural strength of cutter and the general problem of operation stability in interior linear cutting anastomat.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of pincers of intracavitary linear cutting anastomat
Mouth structure, including upper jaw, lower jaw and cutter, the upper surface of the cutter and upper jaw mobile connection, cutter
Lower end surface and lower jaw mobile connection, in the cavity under the not used original state of linear cutting anastomat, the cutting
Knife is located between the root of upper jaw and the root of lower jaw；The root of the upper jaw and the root two sides of lower jaw are equipped with
Rotation connection structure, the rotation connection structure are made of arc groove and arc-shaped convex ribs, in arc groove and arc-shaped convex ribs
One is located on the root of the upper jaw, and another one is located on the root of the lower jaw, and arc-shaped convex ribs are embedded in circular arc
In slot；The arc core of the arc groove is located at except the jaw structure.
Related content in above-mentioned technical proposal is explained as follows:
1, in above scheme, preferable scheme is that the upper jaw includes supporting nail-plate；The lower jaw includes nail bin and nail
Storehouse housing, nail bin are fixedly connected with nail bin housing；Described support on nail-plate and nail bin housing offers guide groove, so that the cutting
The upper surface and lower end surface of knife by guide groove respectively with upper jaw, lower jaw mobile connection.
2, in above scheme, it further includes connecting rod and push jack that preferable scheme, which is the jaw structure, the lower jaw
Root is fixedly connected with one end of the connecting rod, and the push jack is mounted in connecting rod, and the cutter, which are fixed at, to be pushed away
One end of piece.
The design feature of the utility model and the utility model has the advantages that the intracavitary linear cutting anastomat of the utility model jaw
Structure realizes the movement of jaw with the motion structure for not using central pin shaft, solves and coincide at present in intracavitary straight cuts
The structural strength of cutter in device.The root of upper jaw in the prior art and the root of lower jaw are hinged by pin shaft, and this
The root of the upper jaw of utility model and the root two sides of lower jaw are equipped with rotation connection structure, the rotation connection structure be by
Arc groove and arc-shaped convex ribs composition, arc-shaped convex ribs are embedded in arc groove, and the arc core of arc groove must be positioned at entirely
Except the fuselage of jaw structure.From principle, the principle of cutter driving upper jaw rotation is equivalent to lever principle.Cutting
The tie point of knife and upper jaw is equivalent to the position of power, and upper jaw is equivalent to fulcrum relative to the central point that lower jaw rotates,
The distance of the position of power to fulcrum is the arm of force.The fulcrum of the prior art is located in central pin shaft, and the fulcrum of the utility model
It is exactly the arc core of arc groove, except the fuselage of entire jaw structure, that is to say, that the arm of force of the utility model is elongated, makes
The active force for obtaining cutter driving upper jaw rotation becomes strong, enhances the intensity and operation stability of cutter.From another point of view
For, since the jaw structure of the utility model does not have central pin shaft, do not needed on the push jack being fixedly connected with cutter yet
Fluting, so the intensity of cutter and operation stability also become more preferable.
In short, compared with prior art, due to being moved outside the rotation center of the utility model jaw structure, can effectively increase
Lower jaw is to the extruding force for being sewn tissue, and the intensity and operation stability of cutter are more preferable, it is ensured that product is in clinical application
In it is safe and effective.
Detailed description of the invention
Attached drawing 1 is the main view of the jaw structure of the intracavitary linear cutting anastomat of the utility model；
Attached drawing 2 is the perspective view of the jaw structure of the intracavitary linear cutting anastomat of the utility model；
Attached drawing 3 is the explosive view of the jaw structure of the intracavitary linear cutting anastomat of the utility model；
Attached drawing 4 is that performance cutter are connect with upper jaw in the jaw structure of the intracavitary linear cutting anastomat of the utility model
The schematic diagram of mode；
Cutter and lower jaw connection side are showed in the jaw structure of the intracavitary linear cutting anastomat of 5 the utility model of attached drawing
The schematic diagram of formula.
In the figures above: 1, upper jaw；2, lower jaw；3, cutter；4, connecting rod；5, protection tube；6, fixed block；7,
Push jack；8, nail-plate is supported；9, cover board；10, nail bin；11, nail bin housing；12, guide groove；13, arc groove；14, arc-shaped convex ribs.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
A kind of embodiment: jaw structure of intracavitary linear cutting anastomat
Referring to shown in attached drawing 1 to attached drawing 5, the jaw structure of the intracavitary linear cutting anastomat includes upper jaw 1, lower jaw
2, cutter 3, connecting rod 4, protection tube 5, fixed block 6 and push jack 7；
The upper jaw 1 include support nail-plate 8 and cover board 9, cover board 9 be fixed on on nail-plate 8 for protect support nail-plate 8；Institute
Stating lower jaw 2 includes nail bin 10 and nail bin housing 11, and nail bin 10 is fixedly connected with nail bin housing 11；It is described to support nail-plate 8 and nail bin
Guide groove 12 is offered on housing 11, the cutter 3 are in I-shaped structure, so that the upper surface and lower end surface of cutter 3 are logical
Cross guide groove 12 respectively with upper jaw 1,2 mobile connection of lower jaw；
The root of the lower jaw 2 is fixedly connected with fixed block 6, and fixed block 6 is fixedly connected with one end of connecting rod 4 again；
The push jack 7 is mounted in connecting rod 4 and can slide in connecting rod 4, and the cutter 3 are welded on one end of push jack 7；Institute
Protection tube 5 is stated to be set in outside connecting rod 4；
The root of the upper jaw 1 and the root two sides of lower jaw 2 are equipped with rotation connection structure, the rotation connection structure
It is made of arc groove 13 and arc-shaped convex ribs 14, arc groove 13 is located on the root of the upper jaw 1, and arc-shaped convex ribs 14 are set
On the root of the lower jaw 2, exactly, arc groove 13 is located on the cover board 9 of 1 root of upper jaw, arc-shaped convex ribs 14
It is located on 11 outer surface of nail bin housing of 2 root of lower jaw；Arc-shaped convex ribs 14 are embedded in arc groove 13；The arc groove 13
Arc core be located at except the jaw structure, the arc core of arc groove 13 is exactly the center of circle of circle where circular trough 13.
The course of work of jaw structure: described to cut in the cavity under the not used original state of linear cutting anastomat
Cutter 3 is located between the root of upper jaw 1 and the root of lower jaw 2, and upper jaw 1 and lower jaw 2 are in opened condition；Work as cutter
3 by push jack 7 driving beginning moved along guide groove 12 to the front end of jaw structure when, the upper surface of cutter 3 will drive pincers
The opposite lower jaw 2 of mouth 1 rotates, until both upper jaw 1 and lower jaw 2 are in closed state, clamps physiological tissue；
There is staple, push nails and wedge-shaped pushing block (not shown), staple are mounted in nail bin 10 in push nails,
During cutter 3 are moved along guide groove 12, cutter 3 push wedge-shaped pushing block mobile towards the front end of jaw structure, wedge shape
The end face of pushing block pushes push nails, thus fires staple and sutures to physiological tissue, at the same time, cutter 3 are to physiology group
It knits and is cut.
It should be noted that the front end of jaw structure refers to close to by operator (being often referred to the patient for needing to implement operation)
One end, the rear end of jaw structure refers to by one end of proximal operator's (being often referred to surgeon).
The tie point of cutter 3 and upper jaw 1 is equivalent to the position of power, and upper jaw 1 is relative in the rotation of lower jaw 2
Heart point is equivalent to fulcrum, and the distance of position to the fulcrum of power is the arm of force.The arc core of arc groove 13 is located at entire pincers in this implementation
Except the fuselage of mouth structure, that is to say, that the arm of force is elongated, so that the active force that cutter 3 drive upper jaw 1 to rotate becomes strong.And
And since the jaw structure of the present embodiment does not have central pin shaft, do not needed out on the push jack 7 being fixedly connected with cutter 3 yet
Slot, so the intensity of cutter 3 and operation stability become more preferable.
The variation of above-described embodiment: the position of arc groove 13 and arc-shaped convex ribs 14 can be exchanged, for example, arc groove 13 is set
On the root of the lower jaw 2, arc-shaped convex ribs 14 are located on the root of the upper jaw 1, and exactly, arc groove 13 is set
On 11 outer surface of nail bin housing of 2 root of lower jaw, arc-shaped convex ribs set 14 on the cover board 9 of 1 root of upper jaw.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (3)
1. a kind of jaw structure of intracavitary linear cutting anastomat, including upper jaw (1), lower jaw (2) and cutter (3),
The upper surface of the cutter (3) and upper jaw (1) mobile connection, the lower end surface and lower jaw (2) of cutter (3) are mobile to be connected
It connects, in the cavity under the not used original state of linear cutting anastomat, the cutter (3) are located at the root of upper jaw (1)
Between portion and the root of lower jaw (2), it is characterised in that: on the root of the upper jaw (1) and the root two sides of lower jaw (2)
Equipped with rotation connection structure, which is made of arc groove (13) and arc-shaped convex ribs (14), arc groove (13)
It is located on the root of the upper jaw (1) with one of arc-shaped convex ribs (14), another one is located at the root of the lower jaw (2)
In portion, arc-shaped convex ribs (14) are embedded in arc groove (13)；The arc core of the arc groove (13) be located at the jaw structure it
Outside.
2. a kind of jaw structure of intracavitary linear cutting anastomat according to claim 1, it is characterised in that: the jaw
Structure further includes connecting rod (4) and push jack (7), the fixed company in the root of the lower jaw (2) and the one end of the connecting rod (4)
It connects, the push jack (7) is mounted in connecting rod (4), and the cutter (3) are fixed at one end of push jack (7).
3. a kind of jaw structure of intracavitary linear cutting anastomat according to claim 1, it is characterised in that: the upper pincers
Mouth (1) includes supporting nail-plate (8)；The lower jaw (2) includes nail bin (10) and nail bin housing (11), nail bin (10) and nail bin housing
(11) it is fixedly connected；Described support on nail-plate (8) and nail bin housing (11) offers guide groove (12), so that the cutter (3)
Upper surface and lower end surface by guide groove (12) respectively with upper jaw (1), lower jaw (2) mobile connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854092.9U CN208388673U (en) | 2017-07-14 | 2017-07-14 | A kind of jaw structure of intracavitary linear cutting anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854092.9U CN208388673U (en) | 2017-07-14 | 2017-07-14 | A kind of jaw structure of intracavitary linear cutting anastomat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208388673U true CN208388673U (en) | 2019-01-18 |
Family
ID=65065364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720854092.9U Active CN208388673U (en) | 2017-07-14 | 2017-07-14 | A kind of jaw structure of intracavitary linear cutting anastomat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208388673U (en) |
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2017
- 2017-07-14 CN CN201720854092.9U patent/CN208388673U/en active Active
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