CN203634232U - Guiding device for circular tube type stapling instrument - Google Patents
Guiding device for circular tube type stapling instrument Download PDFInfo
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- CN203634232U CN203634232U CN201320880184.6U CN201320880184U CN203634232U CN 203634232 U CN203634232 U CN 203634232U CN 201320880184 U CN201320880184 U CN 201320880184U CN 203634232 U CN203634232 U CN 203634232U
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- Prior art keywords
- guiding device
- guiding
- piece
- guiding piece
- tube type
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- 230000000994 depressogenic effect Effects 0.000 claims description 11
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- 239000011248 coating agent Substances 0.000 claims description 8
- 229920002521 macromolecule Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 6
- 230000000968 intestinal effect Effects 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
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- 210000000436 anus Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002496 gastric effect Effects 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a guiding device. The guiding device is used for being assembled at the front end of a circular tube type stapling instrument in a connected mode. The guiding device is set to be of a spiral structure which is formed by at least one guiding part in a surrounding mode, wherein the spiral structure comprises an outer surface, a cavity and an inner surface in the cavity, and at least part of the outer surface and/or the inner surface of the guiding device is coated with high polymer material coatings. Compared with the prior art, the front end of the circular tube type stapling instrument is sleeved with the guiding device, a nail bin assembly of the circular tube type stapling instrument can be guided to enter a human body and penetrate through the intestinal tract, a doctor is helped to smoothly place the head portion of the circular tube type stapling instrument at the preset position, an auxiliary instrument, the guiding device can be disassembled from the nail bin assembly after the circular tube type stapling instrument reaches the preset position of an operation, and follow-up operation of the circular tube type stapling instrument is not influenced.
Description
Technical field
This utility model relates to technical field of medical instruments, relates in particular to a kind of guiding device of tubular binding strument.
Background technology
Tubular binding strument is a kind of surgical instruments that human body tubular type organizes seaming and cutting to perform the operation that is widely used in, and is made up of with percussion assembly circular nail barrel assembly, nail supporting base assembly.This tubular binding strument is mainly that the tubular type tissue in order to two ends need to be coupled together is placed between nail barrel assembly and nail supporting base assembly, adjust the distance of nail barrel assembly and nail supporting base assembly and carry out grip tissue gradually, then operation percussion assembly is shaped nail, completes the connection of two sections of tissues.
In actual operation technique, there is the tubular binding strument of two kinds of operations to enter pipeline more difficult, be respectively low rectal operation and gastric bypass operation.The operation of first low rectal, employing be that diameter is the tubular binding strument of 33 millimeters, need per anum to enter and perform the operation, because anus is a flesh opening, its diameter of normal condition is less, the apparatus of 33 millimeters is inserted into anus more difficult.The second gastric bypass operation, what adopt is that diameter is the tubular binding strument of 25 millimeters, need enter small intestinal performs the operation, small intestinal is the digester tube of human body, inwall has a lot of mucosas, and tubular binding strument is because end face is larger, and because reasons in structure surface is sufficiently oily, in small intestinal, walks easily mucosa is caused to damage.
Summary of the invention
The purpose of this utility model is to provide a kind of guiding device of tubular binding strument easy to operate, simple in structure.
Wherein, the guiding device of this tubular binding strument, for being coupled to the front end of tubular binding strument, described guiding device is made as by least one guiding piece around the helicoidal structure forming, described helicoidal structure comprises the cavity of outer surface, hollow, and inner surface in described cavity, at least part of outer surface of described guiding device and/or inner surface, be coated with macromolecule material coating.
As further improvement of the utility model, described macromolecular material is polypropylene or polyurethane.
As further improvement of the utility model, described guiding device by the guiding piece of at least two strips around forming.
As further improvement of the utility model, each guiding piece interlaced around.
As further improvement of the utility model, described guiding device comprises a near-end and a far-end, and near-end is gradually-reducing shape to the outline of far-end.
As further improvement of the utility model, one end of each guiding piece is provided with traction piece, and when guiding piece is around forming when guiding device, described draught line is positioned at the far-end of described guiding device, and part is contained in described hollow cavity.
As further improvement of the utility model, on each guiding piece, opposing both sides are respectively equipped with depressed part and projection, and when guiding piece is around forming when guiding device, two guiding pieces are by described depressed part and the projection location that cooperatively interacts;
In the time that at least one guiding piece is subject to external force tractive, two guiding pieces disintegrate gradually in the shape of a spiral.
As further improvement of the utility model, the other end of each guiding piece is provided with at least one boss coordinating with the nail bin of tubular binding strument.
As further improvement of the utility model, when guiding piece is around forming when guiding device, circumferentially, the arc length between adjacent lands equates described boss between two.
Correspondingly, a kind of tubular binding strument, comprises the tubular binding strument guiding device described in as above any one.
Compared with prior art, guiding device is set in tubular binding strument front end by this utility model, can guide the nail bin groupware of tubular binding strument to enter human body and pass intestinal, help doctor that the head of Binding Instrument is successfully put into preposition, after it arrives operation precalculated position, this assistive device can be laid down from nail bin groupware, do not affected the subsequent operation of tubular binding strument.
Accompanying drawing explanation
Fig. 1 is that in this utility model one embodiment, guiding device is assembled to the schematic diagram on tubular binding strument.
Fig. 2 is the structural representation of the guiding device of tubular binding strument in this utility model one embodiment.
The specific embodiment
Below with reference to the specific embodiment shown in the drawings, this utility model is described in detail.But these embodiments do not limit this utility model, the conversion in structure, method or function that those of ordinary skill in the art makes according to these embodiments is all included in protection domain of the present utility model.
Shown in ginseng Fig. 1, introduce a specific embodiment of the guiding device of tubular binding strument of the present utility model.In the present embodiment, this guiding device 10 is coupled on the nail barrel assembly 1 of tubular binding strument, and wherein, nail barrel assembly comprises the nail barrel and the nail bin that interfix, thereby this utility model also relates to a kind of tubular binding strument.This tubular binding strument comprises nail barrel assembly 1 and is removably installed in the guiding device 10 on described nail barrel assembly 1.
Described guiding device 10 entirety are for the guiding piece by strip is around the helicoidal structure forming, its outline becomes gradually-reducing shape from near-end towards far-end, distal-to-proximal external diameter increases gradually, preferably, the maximum outside diameter of its near-end is less than or equal to the external diameter of nail barrel, thereby while making guiding device 10 be coupled on nail barrel assembly 1, can not increase the external diameter of tubular binding strument, and then can not increase patient's misery.Certainly, in other embodiments, the outline of guiding device 10 can be also hemispherical other shapes such as grade, as long as can easily tubular binding strument being imported in human body smoothly.
Shown in ginseng Fig. 2, guiding device 10 comprises the inner surface 15 in cavity 14 and the described cavity 14 of outer surface 13, hollow, on its outer surface 13, applies macromolecule material coating 17.The object that applies macromolecule material coating 17 is in order to connect two guiding pieces 11 and 12, by controlling the feature such as material, thickness of polymeric coating layer 17, can control easily the bonding strength of two guiding pieces 11 and 12, and then control the size of required power while guiding device 10 being derived to tubular binding strument by decomposition.In other embodiments, on the inner surface 15 of guiding device 10, can also apply macromolecule material coating, its effect be coated in the identical of effect on its outer surface 13.Generally on its outer surface 13, applying macromolecule material coating ratio is easier to.
In the present embodiment, macromolecule material coating can be polypropylene (PP) or polyurethane (PU), preferably, adopts nanoscale polyurethane (PU), adopts spraying or spin coating proceeding to apply.Polyurethane (PU) is a kind of high-molecular organic material, there is relatively good biocompatibility and mechanical property, can be used as binding agent is bonded together helical structure 11 and helical structure 12, adopt nanoscale polyurethane to apply the outer surface 13 of guiding device 10, more can improve wearability and the hardness of outer surface 13.
Continue shown in ginseng Fig. 2, guiding device 10 by least one guiding piece around the helicoidal structure forming, preferably, in the present embodiment, be guiding piece by two strips around forming, guiding piece 11 and guiding piece 12, guiding piece 11 and guiding piece 12 can be interlock around (as shown in Figure 2), also can be guiding piece 11 around the position being arranged near guiding device 10 near-ends, guiding piece 12 be around the position being arranged near guiding device 10 far-ends.Certainly, guiding piece 11 also can be arranged on the position near guiding device 10 far-ends, and guiding piece 12 is arranged on the position near guiding device 10 near-ends.Because guiding piece 11 and guiding piece 12 are to be mutually closely intertwined, so the intensity of the outer wall of whole guiding device 10 is larger, in the time guiding tubular binding strument and enter in human body, can not cave in.In addition, on each guiding piece, opposing both sides are respectively equipped with depressed part 19 and projection 20, and when guiding piece is around forming when guiding device, two guiding pieces 11 and 12 are by described depressed part 19 and projection 20 location that cooperatively interacts; In the time that at least one guiding piece is subject to external force tractive, two guiding pieces disintegrate gradually in the shape of a spiral.Described depressed part 19 cooperatively interacts location and makes guiding device 10 outer surfaces become smooth transition structure while being set in tubular binding strument stretches into human body with projection 20.In the present embodiment, on described guiding device 10 in adjacent two-layer guiding piece, described depressed part 19 be arranged on the guiding piece that is positioned at far-end and opening towards the guiding piece that is positioned at near-end, described projection 20 is arranged on the guiding piece that is positioned at near-end and towards the described depressed part 19 direction projections that are positioned on the guiding piece of far-end.Certainly, described depressed part 19 also can be arranged on the guiding piece that is positioned at near-end and opening towards the guiding piece that is positioned at far-end, simultaneously, described projection 20 correspondences are arranged on the guiding piece that is positioned at far-end and towards the described depressed part 19 direction projections that are positioned on the guiding piece of near-end, the equally also object of attainable cost utility model.
Preferably, be equipped with traction piece 16 in one end of each guiding piece, when guiding piece 11 and guiding piece 12 alternative rings are after forming guiding device, described traction piece 16 is all positioned at the far-end of described guiding device 10, and part is contained in described hollow cavity 14, drawn by the near-end of helical structure through cavity 14.The helical structure of guiding device 10 disintegrates in the shape of a spiral under traction piece 16 pulls.In addition, in the time that guiding device 10 connects on nail barrel assembly 1, tubular binding strument imports after tissue (not shown), and it is outer so that operation that the end of traction piece 16 will be positioned at tissue.In the present embodiment, guiding piece 11 and guiding piece 12 alternative ring windings are put, and two traction pieces 16 are all arranged on the far-end of guiding device 10; Certainly, guiding piece 11 or 12 is arranged on the position near guiding device 10 near-ends, when guiding piece 12 or 11 is arranged near the position of guiding device 10 far-ends, two traction pieces 16 can one be arranged on the far-end of guiding device 10, and another is arranged on a certain position between far-end and the near-end of leading device 10.Traction piece 16 can be the extended line of the helix of composition guiding device 10, can be also a draught line that is fixed on guiding device 10 far-ends, as long as play draw.
In addition, the other end of each guiding piece is provided with at least one boss 18 coordinating with the nail bin of tubular binding strument, boss 18 is in order to be installed on (not shown) in the hole that nail bin is corresponding, can guiding device 10 is fixing with nail barrel assembly 1, its quantity can arrange as required, in the present embodiment, preferably, the near-end of helical structure is provided with multiple boss, and multiple boss are along the circle distribution of guiding device 10 near-ends, and the arc length between adjacent lands equates between two.
In the time of operation, guiding device 10 is socketed in to the far-end of nail barrel assembly 1, described nail barrel assembly comprises the nail barrel and the nail bin that interfix, then guide tubular binding strument to enter in tissue, now, the end of traction piece 16 passes tubular binding strument and is exposed to outside patient body, then pull traction piece 16, make guiding piece 11 and guiding piece 12 be despiralization by the order drawing near, guiding piece is drawn out of into strips in external, in this process, on outer surface due to guiding device 10, be coated with macromolecule material coating, make traction piece 16 pull the guiding device 10 required power of disintegrating and be able to good control.
Be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit the scope of the invention, all do not depart from the equivalent embodiment that skill spirit of the present invention does or change and all should be included in protection scope of the present invention within.
Claims (10)
1. a guiding device, for being coupled to the front end of tubular binding strument, it is characterized in that, described guiding device is made as by least one guiding piece around the helicoidal structure forming, described helicoidal structure comprises the cavity of outer surface, hollow, and inner surface in described cavity, at least part of outer surface of described guiding device and/or inner surface, be coated with macromolecule material coating.
2. guiding device according to claim 1, is characterized in that, described macromolecular material is polypropylene or polyurethane.
3. guiding device according to claim 1, is characterized in that, described guiding device by the guiding piece of at least two strips around forming.
4. guiding device according to claim 3, is characterized in that, each guiding piece interlaced around.
5. guiding device according to claim 1, is characterized in that, described guiding device comprises a near-end and a far-end, and near-end is gradually-reducing shape to the outline of far-end.
6. guiding device according to claim 3, it is characterized in that, one end of each guiding piece is provided with traction piece, when guiding piece is around forming when guiding device, described draught line is positioned at the far-end of described guiding device, and part is contained in described hollow cavity.
7. guiding device according to claim 4, is characterized in that, on each guiding piece, opposing both sides are respectively equipped with depressed part and projection, and when guiding piece is around forming when guiding device, two guiding pieces are by described depressed part and the projection location that cooperatively interacts;
In the time that at least one guiding piece is subject to external force tractive, two guiding pieces disintegrate gradually in the shape of a spiral.
8. guiding device according to claim 6, is characterized in that, the other end of each guiding piece is provided with at least one boss coordinating with the nail bin of tubular binding strument.
9. guiding device according to claim 8, is characterized in that, when guiding piece is around forming when guiding device, circumferentially, the arc length between adjacent lands equates described boss between two.
10. a tubular binding strument, is characterized in that, comprises the tubular binding strument guiding device described in as above any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880184.6U CN203634232U (en) | 2013-12-30 | 2013-12-30 | Guiding device for circular tube type stapling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880184.6U CN203634232U (en) | 2013-12-30 | 2013-12-30 | Guiding device for circular tube type stapling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203634232U true CN203634232U (en) | 2014-06-11 |
Family
ID=50865522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880184.6U Expired - Lifetime CN203634232U (en) | 2013-12-30 | 2013-12-30 | Guiding device for circular tube type stapling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203634232U (en) |
-
2013
- 2013-12-30 CN CN201320880184.6U patent/CN203634232U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co.,Ltd. Address before: 215021 science and Technology Plaza, Jinji Lake Road International Science and Technology Park, Suzhou Industrial Park, Jiangsu, 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |