CN103142277B - Circular tube-type binding instrument and guiding device thereof - Google Patents
Circular tube-type binding instrument and guiding device thereof Download PDFInfo
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- CN103142277B CN103142277B CN201210582003.1A CN201210582003A CN103142277B CN 103142277 B CN103142277 B CN 103142277B CN 201210582003 A CN201210582003 A CN 201210582003A CN 103142277 B CN103142277 B CN 103142277B
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Abstract
The invention provides a circular tube-type binding instrument and a guiding device thereof. The circular tube-type binding instrument comprises a nail barrel assembly and the guiding device which is detachably arranged on the nail barrel assembly. The whole guiding device is of a spiral structure formed by winding spiral lines, and comprises a guiding part located at the outer side of the nail barrel assembly. The outer contour of the guiding part is contracted from the near end to the far end. The guiding device also comprises sunk parts and bulges respectively arranged at opposite sides of two adjacent layers of spiral lines and matched with each other in the manner of positioning; the sunk parts and the bulges are matched with each other in the manner of positioning when the circular tube-type binding instrument extends into a human body, and are separated from each other to gradually and spirally disassemble the guiding part when the guiding part is pulled by an external force.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of tubular binding strument and guiding device thereof.
Background technology
Tubular binding strument is a kind of surgical instruments being widely used in human body tubular type and organizing seaming and cutting to perform the operation, and is made up of with percussion assembly the screw barrel component of circle, nail supporting base assembly.The tubular type tissue of this tubular binding strument mainly in order to be coupled together by two sections of needs is placed between screw barrel component and nail supporting base assembly, the distance of adjustment screw barrel component and nail supporting base assembly carrys out grip tissue gradually, then operation percussion assembly makes nail be shaped, and completes the connection of two sections of tissues.
In the operation technique of reality, having two kinds of tubular binding struments of performing the operation to enter pipeline more difficult, is low rectal operation and gastric bypass operation respectively.The first low rectal is performed the operation, and to be diameter the be tubular binding strument of 33 millimeters of employing, need per anum to enter and perform the operation, because anus is a muscular opening, its diameter of normal condition is less, the apparatus of 33 millimeters is inserted into anus more difficult.The second gastric bypass operation, to be diameter the be tubular binding strument of 25 millimeters adopted, small intestinal need be entered perform the operation, small intestinal is the digester tube of human body, inwall has a lot of mucosa, and tubular binding strument due to end face comparatively large, and due to reasons in structure surface sufficiently oily, walk at little enteral and easily damage caused to mucosa.
A kind of assistive device being set in the nail bin groupware periphery of tubular binding strument that the prior art solved the problem at present discloses for U.S. Patent application US2009/0204108A1 disclosed in 13 days Augusts in 2009, the nail bin groupware of the tubular Binding Instrument of aimming circle can enter human body and through intestinal, this assistive device can be laid down from nail bin groupware after it arrives operation precalculated position, not affect the subsequent operation of tubular binding strument.Although these assistive devices can help doctor that the head of Binding Instrument is successfully put into preposition, this assistive device need use larger power to tear hauling-out at present, easily accidentally injures tissue and experience is not good.
Therefore, be necessary to provide a kind of circular-pipe anastomat of improvement and guiding device thereof to solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of structure simple and the tubular binding strument of convenient location and dismounting and guiding device thereof.
For achieving the above object, the invention provides a kind of guiding device, be coupled in the screw barrel component of a tubular binding strument, described guiding device entirety for by helix around helicoidal structure, and comprise the guide portion be positioned at outside screw barrel component; The outline of described guide portion distally becomes contraction-like from near-end, and described guiding device also comprise be separately positioned on two-layer helix adjacent in described guide portion opposite side on and in order to the depressed part of mutual location fit and projection, described depressed part and projection are set to the location that cooperatively interacts when tubular binding strument stretches in human body, mutually depart from and guide portion disintegrated in the shape of a spiral gradually when guide portion is subject to external force tractive.
As a further improvement on the present invention, in two-layer helix adjacent in described guide portion, described depressed part be arranged at be positioned at far-end helix on and opening towards the helix being positioned at near-end, described projection be arranged at be positioned at near-end helix on and towards being positioned at described depressed part direction projection on the helix of far-end.
As a further improvement on the present invention, described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is hollow setting.
As a further improvement on the present invention, the far-end of described guide portion is provided with to be fixed with the towing pad of tractive disintegration guiding device for a draught line, and the near-end of described guide portion is formed with a binding face fitted with the end face of the screw barrel component of tubular binding strument.
As a further improvement on the present invention, described guiding device also comprises and is connected with the locating dowel be positioned by guiding device in the screw barrel component of tubular binding strument with the near-end of guide portion, described locating dowel encompasses column by helix, and the described depressed part binding face of the described guide portion helix adjacent with binding face with described locating dowel is also provided with in order to mutual location fit and described projection.
For achieving the above object, present invention also offers a kind of tubular binding strument, comprise screw barrel component and be removably installed in the guiding device in screw barrel component, described guiding device entirety for by helix around helicoidal structure, and comprise the guide portion be positioned at outside screw barrel component; The outline of described guide portion distally becomes contraction-like from near-end, and described guiding device also comprise be separately positioned on two-layer helix adjacent in described guide portion opposite side on and in order to the depressed part of mutual location fit and projection, described depressed part and projection are set to the location that cooperatively interacts when tubular binding strument stretches in human body, mutually depart from and guide portion disintegrated in the shape of a spiral gradually when guide portion is subject to external force tractive.
As a further improvement on the present invention, in two-layer helix adjacent in described guide portion, described depressed part be arranged at be positioned at far-end helix on and opening towards the helix being positioned at near-end, described projection be arranged at be positioned at near-end helix on and towards being positioned at described depressed part direction projection on the helix of far-end.
As a further improvement on the present invention, described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is hollow setting.
As a further improvement on the present invention, the far-end of described guide portion is provided with to be fixed with the towing pad of tractive disintegration guiding device for a draught line, and the near-end of described guide portion is formed with a binding face fitted with the end face of the screw barrel component of tubular binding strument.
As a further improvement on the present invention, described guiding device also comprises and is connected with the locating dowel be positioned by guiding device in the screw barrel component of tubular binding strument with the near-end of guide portion, described locating dowel encompasses column by helix, and the described depressed part binding face of the described guide portion helix adjacent with binding face with described locating dowel is also provided with in order to mutual location fit and described projection.
The invention has the beneficial effects as follows: the opposite side of guiding device of the present invention by two-layer helix adjacent in described guide portion is arranged respectively the depressed part in order to mutual location fit and projection; Wherein said depressed part and projection are set to cooperatively interact when tubular binding strument stretches in human body location and guide portion outer surface is become to smoothly transit structure, can effectively prevent adjacent helix distortion from staggering and causing outside guide portion rough thus, and then accidental injury tissue, increase the misery of patient; In addition, described depressed part and projection are also set to mutually depart from when guide portion is subject to external force tractive and guide portion disintegrated in the shape of a spiral gradually, thus facilitate the dismounting of guiding device; In addition, the guiding device in the present invention be by helix around helicoidal structure, its structure is simple and conveniently manufacture.
Accompanying drawing explanation
Fig. 1 is the front view of guiding device one better embodiment of the present invention;
Fig. 2 is the upward view of guiding device in Fig. 1;
Fig. 3 is the cross-sectional schematic of guiding device in Fig. 1.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments or conversion functionally are all included in protection scope of the present invention.
Please refer to Fig. 1 to the better embodiment that Figure 3 shows that guiding device 1 of the present invention.Described guiding device 1 is coupled in the screw barrel component (not shown) of a tubular binding strument, thus the invention still further relates to a kind of cylinder type anastomat; This cylinder type anastomat includes screw barrel component and is removably installed in the described guiding device 1 in described screw barrel component.
Described guiding device 1 entirety for by helix around helicoidal structure, and comprise the guide portion 2 be positioned at outside screw barrel component and the locating dowel 3 be connected with the near-end of guide portion 2 guiding device 1 of the present invention to be positioned the screw barrel component of tubular binding strument.The maximum outside diameter of described guide portion 2 is less than or equal to the external diameter of the near-end of described screw barrel component, thus makes the setting of guiding device 1 of the present invention can not increase the external diameter of tubular binding strument, and then can not increase the misery of patient (not shown).
The outline of described guide portion 2 distally becomes contraction-like from near-end, and described guide portion 2 is coniform from distal-to-proximal outline in the present embodiment, and this coniform guide portion 2 is hollow setting.Certainly, the outline of described guide portion 2 also can be hemispherical other shapes such as grade in other embodiments, as long as the tubular binding strument that conveniently can be provided with guiding device 1 of the present invention imports human body (not shown) smoothly.In addition, described guiding device 1 also comprise be separately positioned on two-layer helix adjacent in described guide portion 2 opposite side on and in order to the depressed part 21 of mutual location fit and projection 22.Described depressed part 21 and projection 22 are set to cooperatively interact when tubular binding strument stretches in human body location and guide portion 2 outer surface is become to smoothly transit structure, guide portion 2 are disintegrated in the shape of a spiral gradually when guide portion 2 is subject to external force tractive.In the present embodiment, in two-layer helix adjacent in described guide portion 2, described depressed part 21 be arranged at be positioned at far-end helix on and opening towards the helix being positioned at near-end, described projection 22 be arranged at be positioned at near-end helix on and towards being positioned at described depressed part 21 direction projection on the helix of far-end.Certainly, described depressed part 21 also can be arranged on be positioned at near-end helix on and opening towards the helix being positioned at far-end, simultaneously, described projection 22 correspondence be arranged at be positioned at far-end helix on and towards being positioned at described depressed part 21 direction projection on the helix of near-end, the object of equally also attainable cost invention.The far-end of described guide portion 2 is provided with the towing pad 23 supplying the fixing guiding device 1 of the present invention that disintegrates with tractive of a draught line (not shown), thus the guiding device 1 in present embodiment is disintegrated gradually by the order drawn near.The near-end of described guide portion 2 is formed with a binding face 24 fitted with the end face of the screw barrel component of tubular binding strument.
Described locating dowel 3 encompasses column by helix, and described locating dowel 3 is also in hollow form.The external diameter of described locating dowel 3 is less than the external diameter of the near-end of described guide portion 2.The helix that the binding face 24 of described guide portion 2 is adjacent with binding face 24 with described locating dowel 3 is also provided with the described depressed part 21 in order to mutual location fit and described projection 22; Wherein in the present embodiment, described binding face 24 is arranged with the described depressed part 21 of opening towards described locating dowel 3 direction, this depressed part 21 is arranged near the inner side of binding face 24; The helix that described locating dowel 3 is adjacent with binding face 24 is arranged towards binding face 24 direction projection to coordinate the described projection 22 of locating with the depressed part 21 on binding face 24; Certainly, in the present invention, also can described projection 22 be set on binding face 24, and the described depressed part 21 with described projection 22 location fit is set on the helix that described locating dowel 3 is adjacent with binding face 24.In addition, in two-layer helix adjacent in described locating dowel 3, the helix being positioned at far-end is also provided with opening towards the depressed part 32 of helix being positioned at near-end, and the helix being positioned at near-end is provided with the projection 33 of the depressed part 32 direction projection towards the helix being positioned at near-end.And described depressed part 32 and projection 33 are also set to cooperatively interact when tubular binding strument stretches in human body location, mutually depart from and locating dowel 3 disintegrated in the shape of a spiral gradually when locating dowel 3 is subject to external force tractive.Certainly, the depressed part 32 on two-layer helix adjacent in described locating dowel 3 and projection 33 also interchangeable position, the object of equally also attainable cost invention.
By obtaining above, the opposite side of the two-layer helix that the present invention is adjacent in the guide portion 2 and locating dowel 3 of guiding device 1 arranges described depressed part 21,32 in order to mutual location fit and described projection 22,33 respectively; Wherein said depressed part 21,32 and projection 22,33 are set to cooperatively interact when tubular binding strument stretches in human body location and guiding device 1 outer surface is become to smoothly transit structure, can prevent adjacent helix distortion from staggering and causing outside guide portion 2 rough thus, and then accidental injury tissue, increase the misery of patient; In addition, described depressed part 21,32 and projection 22,33 are also set to mutually depart from when guiding device 2 is subject to external force tractive and disintegrated in the shape of a spiral gradually by guiding device 1, thus facilitate the dismounting of guiding device 1; In addition, the guiding device 1 in the present invention be by helix around helicoidal structure, its structure is simple and conveniently manufacture.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.
Claims (10)
1. a guiding device, is coupled in the screw barrel component of a tubular binding strument, it is characterized in that: described guiding device entirety for by helix around helicoidal structure, and comprise the guide portion be positioned at outside screw barrel component; The outline of described guide portion distally becomes contraction-like from near-end, and described guiding device also comprise be separately positioned on two-layer helix adjacent in described guide portion opposite side on and in order to the depressed part of mutual location fit and projection, described depressed part and projection are set to the location that cooperatively interacts when tubular binding strument stretches in human body, mutually depart from and guide portion disintegrated in the shape of a spiral gradually when guide portion is subject to external force tractive.
2. guiding device according to claim 1, it is characterized in that: in two-layer helix adjacent in described guide portion, described depressed part be arranged at be positioned at far-end helix on and opening towards the helix being positioned at near-end, described projection be arranged at be positioned at near-end helix on and towards being positioned at described depressed part direction projection on the helix of far-end.
3. guiding device according to claim 1, is characterized in that: described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is hollow setting.
4. guiding device according to claim 1, it is characterized in that: the far-end of described guide portion is provided with to be fixed with the towing pad of tractive disintegration guiding device for a draught line, the near-end of described guide portion is formed with a binding face fitted with the end face of the screw barrel component of tubular binding strument.
5. guiding device according to claim 4, it is characterized in that: described guiding device also comprises and is connected with the locating dowel be positioned by guiding device in the screw barrel component of tubular binding strument with the near-end of guide portion, described locating dowel encompasses column by helix, and the described depressed part binding face of the described guide portion helix adjacent with binding face with described locating dowel is also provided with in order to mutual location fit and described projection.
6. a tubular binding strument, comprises screw barrel component and is removably installed in the guiding device in screw barrel component, it is characterized in that: described guiding device entirety for by helix around helicoidal structure, and comprise the guide portion be positioned at outside screw barrel component; The outline of described guide portion distally becomes contraction-like from near-end, and described guiding device also comprise be separately positioned on two-layer helix adjacent in described guide portion opposite side on and in order to the depressed part of mutual location fit and projection, described depressed part and projection are set to the location that cooperatively interacts when tubular binding strument stretches in human body, mutually depart from and guide portion disintegrated in the shape of a spiral gradually when guide portion is subject to external force tractive.
7. tubular binding strument according to claim 6, it is characterized in that: in two-layer helix adjacent in described guide portion, described depressed part be arranged at be positioned at far-end helix on and opening towards the helix being positioned at near-end, described projection be arranged at be positioned at near-end helix on and towards being positioned at described depressed part direction projection on the helix of far-end.
8. tubular binding strument according to claim 6, is characterized in that: described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is hollow setting.
9. tubular binding strument according to claim 6, it is characterized in that: the far-end of described guide portion is provided with to be fixed with the towing pad of tractive disintegration guiding device for a draught line, the near-end of described guide portion is formed with a binding face fitted with the end face of the screw barrel component of tubular binding strument.
10. tubular binding strument according to claim 9, it is characterized in that: described guiding device also comprises and is connected with the locating dowel be positioned by guiding device in the screw barrel component of tubular binding strument with the near-end of guide portion, described locating dowel encompasses column by helix, and the described depressed part binding face of the described guide portion helix adjacent with binding face with described locating dowel is also provided with in order to mutual location fit and described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582003.1A CN103142277B (en) | 2012-12-28 | 2012-12-28 | Circular tube-type binding instrument and guiding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582003.1A CN103142277B (en) | 2012-12-28 | 2012-12-28 | Circular tube-type binding instrument and guiding device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103142277A CN103142277A (en) | 2013-06-12 |
| CN103142277B true CN103142277B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210582003.1A Active CN103142277B (en) | 2012-12-28 | 2012-12-28 | Circular tube-type binding instrument and guiding device thereof |
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| CN (1) | CN103142277B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182239B1 (en) * | 2004-08-27 | 2007-02-27 | Myers Stephan R | Segmented introducer device for a circular surgical stapler |
| CN202218890U (en) * | 2011-08-24 | 2012-05-16 | 苏州天臣国际医疗科技有限公司 | Guiding device |
| CN202313535U (en) * | 2011-08-24 | 2012-07-11 | 苏州天臣国际医疗科技有限公司 | Guiding accessory |
| CN203029314U (en) * | 2012-12-28 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Round tube shaped stapling instrument and guiding device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006344926B2 (en) * | 2006-06-21 | 2013-02-14 | Rudolf Steffen | Device for introducing and positioning surgical instruments and corresponding method |
-
2012
- 2012-12-28 CN CN201210582003.1A patent/CN103142277B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182239B1 (en) * | 2004-08-27 | 2007-02-27 | Myers Stephan R | Segmented introducer device for a circular surgical stapler |
| CN202218890U (en) * | 2011-08-24 | 2012-05-16 | 苏州天臣国际医疗科技有限公司 | Guiding device |
| CN202313535U (en) * | 2011-08-24 | 2012-07-11 | 苏州天臣国际医疗科技有限公司 | Guiding accessory |
| CN203029314U (en) * | 2012-12-28 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Round tube shaped stapling instrument and guiding device thereof |
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| Publication number | Publication date |
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| CN103142277A (en) | 2013-06-12 |
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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 Park, Suzhou Industrial Park, Suzhou, Jiangsu, 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |