CN103142277A - 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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- CN103142277A CN103142277A CN2012105820031A CN201210582003A CN103142277A CN 103142277 A CN103142277 A CN 103142277A CN 2012105820031 A CN2012105820031 A CN 2012105820031A CN 201210582003 A CN201210582003 A CN 201210582003A CN 103142277 A CN103142277 A CN 103142277A
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- guide portion
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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, relate in particular to a kind of tubular binding strument and guiding device thereof.
Background technology
Tubular binding strument is a kind of surgical instruments that the human body tubular type is organized seaming and cutting operations that is widely used in, and is comprised of with the percussion assembly nail barrel assembly, the nail supporting base assembly of circle.This tubular binding strument is mainly to be placed between nail barrel assembly and nail supporting base assembly in order to the tubular type tissue that two sections needs are coupled together, adjust the distance of nail barrel assembly and nail supporting base assembly and come grip tissue gradually, then operation percussion assembly is shaped nail, completes the connection of two sections tissues.
In the operation technique of reality, 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 first low rectal operation, 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 apparatuses 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 larger due to end face, and sufficiently oily due to the reasons in structure surface, walks in small intestinal easily to the mucosa injury.
The prior art that addresses the above problem at present is a kind of assistive device that is set in the nail bin groupware periphery of tubular binding strument that disclosed U.S. Patent application US2009/0204108A1 disclosed on August 13rd, 2009, nail bin groupware that can the tubular Binding Instrument of aimming circle enters human body and passes intestinal, can lay down this assistive device from nail bin groupware after it arrives the precalculated position of performing the operation, not affect the subsequent operation of tubular binding strument.Although these assistive devices can help the doctor that the head of Binding Instrument is successfully put into preposition, at present this assistive device need use larger power to tear hauling-out, easily accidentally injures tissue and experience not good.
Therefore, be necessary to provide a kind of improved circular-pipe anastomat and guiding device thereof to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure and convenient tubular binding strument and guiding device thereof of locating and dismantling.
For achieving the above object, the invention provides a kind of guiding device, be coupled on the nail barrel assembly of a tubular binding strument, described guiding device whole for by helix around the helicoidal structure that forms, and comprise the guide portion that is positioned at the nail barrel assembly outside; The outline of described guide portion becomes contraction-like from near-end towards far-end, and described guiding device also comprises on the opposite side that is separately positioned on two-layer helix adjacent on described guide portion and coordinate in order to mutual location depressed part and projection, described depressed part and the projection location that cooperatively interacts when being set in tubular binding strument stretches into human body mutually breaks away from when guide portion is subject to the external force tractive and guide portion is disintegrated gradually in the shape of a spiral.
As a further improvement on the present invention, on described guide portion in adjacent two-layer helix, described depressed part be arranged on the helix that is positioned at far-end and opening towards the helix that is positioned at near-end, described projection is arranged on the helix that is positioned at near-end and the described depressed part direction projection on the helix that is positioned at 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 the hollow setting.
As a further improvement on the present invention, the far-end of described guide portion is provided with for the fixing towing pad with tractive disintegration guiding device of a draught line, and the near-end of described guide portion is formed with a binding face that fits with the end face of the nail barrel assembly of tubular binding strument.
As a further improvement on the present invention, described guiding device also comprises and being connected with the near-end of guide portion with the locating dowel in the nail barrel assembly that guiding device is positioned tubular binding strument, described locating dowel encompasses column by helix, and also is provided with described depressed part and the described projection that coordinates in order to mutual location on the binding face of the described guide portion helix adjacent with binding face with described locating dowel.
For achieving the above object, the present invention also provides a kind of tubular binding strument, comprise the nail barrel assembly and be removably installed in guiding device on the nail barrel assembly, described guiding device whole for by helix around the helicoidal structure that forms, and comprise the guide portion that is positioned at the nail barrel assembly outside; The outline of described guide portion becomes contraction-like from near-end towards far-end, and described guiding device also comprises on the opposite side that is separately positioned on two-layer helix adjacent on described guide portion and coordinate in order to mutual location depressed part and projection, described depressed part and the projection location that cooperatively interacts when being set in tubular binding strument stretches into human body mutually breaks away from when guide portion is subject to the external force tractive and guide portion is disintegrated gradually in the shape of a spiral.
As a further improvement on the present invention, on described guide portion in adjacent two-layer helix, described depressed part be arranged on the helix that is positioned at far-end and opening towards the helix that is positioned at near-end, described projection is arranged on the helix that is positioned at near-end and the described depressed part direction projection on the helix that is positioned at 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 the hollow setting.
As a further improvement on the present invention, the far-end of described guide portion is provided with for the fixing towing pad with tractive disintegration guiding device of a draught line, and the near-end of described guide portion is formed with a binding face that fits with the end face of the nail barrel assembly of tubular binding strument.
As a further improvement on the present invention, described guiding device also comprises and being connected with the near-end of guide portion with the locating dowel in the nail barrel assembly that guiding device is positioned tubular binding strument, described locating dowel encompasses column by helix, and also is provided with described depressed part and the described projection that coordinates in order to mutual location on the binding face of the described guide portion helix adjacent with binding face with described locating dowel.
The invention has the beneficial effects as follows: guiding device of the present invention is by arranging respectively depressed part and the projection that coordinates in order to mutual location on the opposite side of two-layer helix adjacent on described guide portion; Wherein said depressed part cooperatively interacts the location and makes the guide portion outer surface become the smooth transition structure when being set in tubular binding strument stretches into human body with projection, can effectively prevent thus adjacent helix distortion from staggering and cause outside guide portion rough, and then the accidental injury tissue, increase patient's misery; In addition, described depressed part and projection also are set to mutually break away from when guide portion is subject to the external force tractive and guide portion are disintegrated gradually in the shape of a spiral, thereby facilitate the dismounting of guiding device; In addition, the guiding device in the present invention for by helix around the helicoidal structure that forms, its simple in structure and convenient manufacturing.
Description of drawings
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.
The specific embodiment
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments do not limit the present invention, and the structure that those of ordinary skill in the art makes according to these embodiments or the conversion on function all are included in protection scope of the present invention.
Please refer to Fig. 1 to a better embodiment that Figure 3 shows that guiding device 1 of the present invention.Described guiding device 1 is coupled on the nail barrel assembly (not shown) of a tubular binding strument, thereby the invention still further relates to a kind of cylinder type anastomat; This cylinder type anastomat includes the nail barrel assembly and is removably installed in described guiding device 1 on described nail barrel assembly.
Described guiding device 1 whole for by helix around the helicoidal structure that forms, and comprise the guide portion 2 that is positioned at the nail barrel assembly outside and be connected guiding device 1 of the present invention to be positioned the locating dowel 3 of the nail barrel assembly of tubular binding strument with the near-end of guide portion 2.The maximum outside diameter of described guide portion 2 is less than or equal to the external diameter of the near-end of described nail barrel assembly, thereby 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 becomes contraction-like from near-end towards far-end, and described guide portion 2 is coniform from distal-to-proximal outline in the present embodiment, and this coniform guide portion 2 is the hollow setting.Certainly, the outline of described guide portion 2 also can be hemispherical other shapes such as grade in other embodiments, imports smoothly human body (not shown) as long as can conveniently be provided with the tubular binding strument of guiding device 1 of the present invention.In addition, described guiding device 1 depressed part 21 and the projection 22 that also comprise on the opposite side that is separately positioned on two-layer helix adjacent on described guide portion 2 and coordinate in order to mutual location.Described depressed part 21 cooperatively interacts the location and makes guide portion 2 outer surfaces become the smooth transition structure when being set in tubular binding strument stretches into human body with projection 22, when guide portion 2 is subject to the external force tractive, guide portion 2 is disintegrated gradually in the shape of a spiral.In the present embodiment, on described guide portion 2 in adjacent two-layer helix, described depressed part 21 be arranged on the helix that is positioned at far-end and opening towards the helix that is positioned at near-end, described projection 22 is arranged on the helix that is positioned at near-end and the described depressed part 21 direction projections on the helix that is positioned at far-end.Certainly, described depressed part 21 also can be arranged on the helix that is positioned at near-end and opening towards the helix that is positioned at far-end, simultaneously, described projection 22 correspondences are arranged on the helix that is positioned at far-end and the described depressed part 21 direction projections on the helix that is positioned at near-end, the equally also purpose of attainable cost invention.The far-end of described guide portion 2 is provided with for the fixing towing pad 23 with tractive disintegration guiding device 1 of the present invention of a draught line (not shown), thereby makes the guiding device 1 in present embodiment disintegrate gradually by the order that draws near.The near-end of described guide portion 2 is formed with a binding face 24 that fits with the end face of the nail barrel assembly of tubular binding strument.
Described locating dowel 3 encompasses column by helix, and described locating dowel 3 also is 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.Also be provided with described depressed part 21 and the described projection 22 that coordinates in order to mutual location on the binding face 24 of described guide portion 2 and described locating dowel 3 helix adjacent with binding face 24; Wherein in the present embodiment, be concaved with opening on described binding face 24 towards the described depressed part 21 of described locating dowel 3 directions, this depressed part 21 arranges near the inboard of binding face 24; Arrange on described locating dowel 3 helix adjacent with binding face 24 towards binding face 24 direction projections to coordinate the described projection 22 of location with the depressed part 21 on binding face 24; Certainly, in the present invention, also described projection 22 can be set on binding face 24, locate and arrange with described projection 22 the described depressed part 21 that coordinates on described locating dowel 3 helix adjacent with binding face 24.In addition, on described locating dowel 3 in adjacent two-layer helix, the helix that is positioned at far-end also is provided with opening towards the depressed part 32 of the helix that is positioned at near-end, and the helix that is positioned at near-end is provided with towards the projection 33 of the depressed part 32 direction projections of the helix that is positioned at near-end.And described depressed part 32 and projection 33 location that cooperatively interacts when also being set in tubular binding strument stretches into human body mutually breaks away from when locating dowel 3 is subject to the external force tractive and locating dowel 3 is disintegrated gradually in the shape of a spiral.Certainly, the depressed part 32 on described locating dowel 3 on adjacent two-layer helix and projection 33 be the interchangeable position also, equally also the purpose of attainable cost invention.
Got by above, the opposite side of the present invention's adjacent two-layer helix on the guide portion 2 of guiding device 1 and locating dowel 3 arranges respectively the described depressed part 21 that coordinates in order to mutual location, 32 and described projection 22,33; Wherein said depressed part 21,32 cooperatively interacts the location and makes guiding device 1 outer surface become the smooth transition structure when being set in tubular binding strument stretches into human body with projection 22,33, can prevent thus adjacent helix distortion from staggering and cause guide portion 2 outsides rough, and then the accidental injury tissue, increase patient's misery; In addition, described depressed part 21,32 and projection 22,33 also is set to mutually break away from when guiding device 2 is subject to the external force tractive and guiding device 1 is disintegrated gradually in the shape of a spiral, thus facilitate the dismounting of guiding device 1; In addition, guiding device in the present invention 1 for by helix around the helicoidal structure that forms, its simple in structure and convenient manufacturing.
Above listed a series of detailed description is only illustrating for feasibility embodiment of the present invention; they are not to limit protection scope of the present invention, all disengaging within equivalent embodiment that skill spirit of the present invention does or change all should be included in protection scope of the present invention.
Claims (10)
1. a guiding device, be coupled on the nail barrel assembly of a tubular binding strument, it is characterized in that: described guiding device whole for by helix around the helicoidal structure that forms, and comprise the guide portion that is positioned at the nail barrel assembly outside; The outline of described guide portion becomes contraction-like from near-end towards far-end, and described guiding device also comprises on the opposite side that is separately positioned on two-layer helix adjacent on described guide portion and coordinate in order to mutual location depressed part and projection, described depressed part and the projection location that cooperatively interacts when being set in tubular binding strument stretches into human body mutually breaks away from when guide portion is subject to the external force tractive and guide portion is disintegrated gradually in the shape of a spiral.
2. guiding device according to claim 1, it is characterized in that: on described guide portion in adjacent two-layer helix, described depressed part be arranged on the helix that is positioned at far-end and opening towards the helix that is positioned at near-end, described projection is arranged on the helix that is positioned at near-end and the described depressed part direction projection on the helix that is positioned at far-end.
3. guiding device according to claim 1, it is characterized in that: described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is the hollow setting.
4. guiding device according to claim 1, it is characterized in that: the far-end of described guide portion is provided with for the fixing towing pad with tractive disintegration guiding device of a draught line, and the near-end of described guide portion is formed with a binding face that fits with the end face of the nail barrel assembly of tubular binding strument.
5. guiding device according to claim 4, it is characterized in that: described guiding device also comprises and being connected with the near-end of guide portion with the locating dowel in the nail barrel assembly that guiding device is positioned tubular binding strument, described locating dowel encompasses column by helix, and also is provided with described depressed part and the described projection that coordinates in order to mutual location on the binding face of the described guide portion helix adjacent with binding face with described locating dowel.
6. tubular binding strument comprises the nail barrel assembly and is removably installed in guiding device on the nail barrel assembly, it is characterized in that: described guiding device whole for by helix around the helicoidal structure that forms, and comprise the guide portion that is positioned at the nail barrel assembly outside; The outline of described guide portion becomes contraction-like from near-end towards far-end, and described guiding device also comprises on the opposite side that is separately positioned on two-layer helix adjacent on described guide portion and coordinate in order to mutual location depressed part and projection, described depressed part and the projection location that cooperatively interacts when being set in tubular binding strument stretches into human body mutually breaks away from when guide portion is subject to the external force tractive and guide portion is disintegrated gradually in the shape of a spiral.
7. tubular binding strument according to claim 6, it is characterized in that: on described guide portion in adjacent two-layer helix, described depressed part be arranged on the helix that is positioned at far-end and opening towards the helix that is positioned at near-end, described projection is arranged on the helix that is positioned at near-end and the described depressed part direction projection on the helix that is positioned at far-end.
8. tubular binding strument according to claim 6, it is characterized in that: described guide portion is coniform from distal-to-proximal outline, and this coniform guide portion is the 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 for the fixing towing pad with tractive disintegration guiding device of a draught line, and the near-end of described guide portion is formed with a binding face that fits with the end face of the nail barrel assembly of tubular binding strument.
10. tubular binding strument according to claim 9, it is characterized in that: described guiding device also comprises and being connected with the near-end of guide portion with the locating dowel in the nail barrel assembly that guiding device is positioned tubular binding strument, described locating dowel encompasses column by helix, and also is provided with described depressed part and the described projection that coordinates in order to mutual location on the binding face of the described guide portion helix adjacent with binding face with described locating dowel.
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 |
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| Publication Number | Publication Date |
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| CN103142277A true CN103142277A (en) | 2013-06-12 |
| CN103142277B CN103142277B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210582003.1A Active CN103142277B (en) | 2012-12-28 | 2012-12-28 | Circular tube-type binding instrument and guiding device thereof |
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Citations (5)
| 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 |
| WO2007147439A1 (en) * | 2006-06-21 | 2007-12-27 | Rudolf Steffen | Device for introducing and positioning surgical instruments and corresponding method |
| 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 |
-
2012
- 2012-12-28 CN CN201210582003.1A patent/CN103142277B/en active Active
Patent Citations (5)
| 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 |
| WO2007147439A1 (en) * | 2006-06-21 | 2007-12-27 | Rudolf Steffen | Device for introducing and positioning surgical instruments and corresponding method |
| 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 |
|---|---|
| CN103142277B (en) | 2015-06-10 |
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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. |