CN103908318A - Nail anvil pull rod - Google Patents
Nail anvil pull rod Download PDFInfo
- Publication number
- CN103908318A CN103908318A CN201210597080.4A CN201210597080A CN103908318A CN 103908318 A CN103908318 A CN 103908318A CN 201210597080 A CN201210597080 A CN 201210597080A CN 103908318 A CN103908318 A CN 103908318A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- pull rod
- main rotating
- anvil pull
- external screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
Abstract
The invention discloses a nail anvil pull rod which comprises a casing with a cavity. A main rotating shaft is arranged in the cavity, the main rotating shaft can move along the axis relative to the casing, inner threads are arranged at the far end of the main rotating shaft, a primary rotating shaft is arranged in the main rotating shaft, outer threads matched with the inner threads are arranged at the near end of a secondary rotating shaft, the far end of the secondary rotating shaft is a thorn, at least two sections of outer threads with opposite rotating directions are arranged on the periphery of the main rotating shaft, the rotating direction of the outer threads located at the far end is opposite to that of the outer threads of the secondary rotating shaft, and a driving piece drives the main rotating shaft to move spirally. The nail anvil pull rod has the advantage that the thorn of the nail anvil pull rod can puncture tissues in an assisting mode, is collected into the nail anvil pull rod when not used, is not easy to break in a transportation or assembly process, and cannot damage other good tissues or doctors accidentally.
Description
Technical field
The anvil pull rod that the present invention relates to the tubular binding strument that a kind of surgical operation uses, belongs to technical field of medical instruments.
Background technology
Tubular binding strument is the surgical instruments that is widely used in surgery reconstruction of digestive tract, as U.S. Pat 5205459 has been recorded a kind of tubular binding strument, formed by circular nail-head component part and percussion assembly, the tissue that two sections of needs are coupled together is placed between the nail anvil and nail bin of nail-head component, the position of adjusting between nail anvil and nail bin makes both close and grip tissue, then pull the trigger assembly percussion nail is shaped, complete the connection of two sections of tissues.
In the time carrying out two sections of tissue-weldings, the anvil pull rod that often need to use tubular binding strument pierces through the wall of one section of tissue wherein.Still relatively require great effort in the tip of traditional anvil pull rod in piercing through thicker tissue, especially, in endoscope-assistant surgery, this sensation is more obvious; If but the tip design of anvil pull rod obtains too point, in the time of transportation or assembling, easily lose again, or in operation, accidentally injure other intact tissues, even in open surgery, also likely accidentally injure doctor.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is to propose a kind of structure anvil pull rod cleverly, can assist easily piercing tissue of doctor, can in transportation or assembling, be difficult for losing again.
Object of the present invention, will be achieved by the following technical programs:
A kind of anvil pull rod, comprise that one has the housing of a cavity, in described cavity, be provided with main rotating shaft, described main rotating shaft can move along its axis relative to described housing, the far-end of described main rotating shaft is provided with female thread, in described main rotating shaft, be provided with rotating shaft one time, the near-end of described rotating shaft is provided with the external screw thread matching with described female thread, the far-end of described rotating shaft is thorn point, the periphery of described main rotating shaft comprises at least 2 sections of external screw threads that rotation direction is contrary, wherein be positioned at the externally threaded rotation direction of far-end contrary with the externally threaded rotation direction of described rotating shaft, be positioned at the externally threaded rotation direction of near-end identical with the externally threaded rotation direction of described rotating shaft, there is an actuator to drive described main rotating shaft screw.
Preferably, at least one side of the thorn point of described rotating shaft is the blade wing.
Preferably, the far-end of described anvil pull rod is an oval-shaped head, and the inside of described head is provided with the sharp chute of thorn, and described thorn point slides in the sharp chute of described thorn.
Preferably, externally threaded near-end one side that is positioned at near-end of described main rotating shaft is connected with a straight trough, and the setting party of described straight trough is to parallel with the axis of described main rotating shaft.
Preferably, described actuator is the projection being fixedly installed in nail barrel, is provided with vertically a straight trough slide rail on the housing of described anvil pull rod, and described projection is passed described straight trough slide rail and extend in the external screw thread of periphery of described main rotating shaft.
Beneficial effect of the present invention is mainly reflected in: the thorn point of anvil pull rod can be assisted piercing tissue; In the time not needing to use this thorn point, it is regained in described anvil pull rod inside, in transportation or assembling, is difficult for losing; And in operation, can not accidentally injure other intact tissues yet or accidentally injure doctor.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the preferred embodiment of anvil pull rod of the present invention.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the explosive view of Fig. 2.
Fig. 4 is the enforcement schematic diagram of anvil pull rod of the present invention in the first stage.
Fig. 5 is the enforcement schematic diagram of anvil pull rod of the present invention in second stage.
Fig. 6 is the enforcement schematic diagram of anvil pull rod of the present invention in the phase III.
The specific embodiment
The present invention has disclosed a kind of anvil pull rod of tubular binding strument, as shown in Figure 1, Figure 2, Figure 3 shows, is made up of housing 10, main rotating shaft 20, inferior rotating shaft 30.
Described housing 10 has a cavity 11.The far-end of described housing 10 is an oval-shaped head 14.On the wall of described housing 10, be provided with vertically a straight trough slide rail 12.In described cavity 11, be provided with main rotating shaft 20, described main rotating shaft 20 can move along its axis relative to described housing 10.
The far-end of described main rotating shaft 20 is provided with female thread 24, and in this preferred embodiment, its rotation direction is dextrorotation.The periphery of described main rotating shaft 20 comprises 2 sections of external screw threads that rotation direction is contrary, wherein be positioned at the rotation direction of external screw thread 21 of far-end contrary with the rotation direction of the external screw thread 33 of described rotating shaft 30, be positioned at the rotation direction of external screw thread 22 of near-end identical with the rotation direction of the external screw thread 33 of described rotating shaft 30, be in this preferred embodiment, the rotation direction that is positioned at the external screw thread 21 of far-end is left-handed, and the rotation direction that is positioned at the external screw thread 21 of near-end is dextrorotation.Certainly, the selection of rotation direction is not feature of the present invention, and this preferred embodiment that is only used to for example of preferred embodiment more clearly embodies.
Near-end one side of the external screw thread that is positioned at near-end 22 of described main rotating shaft 20 is connected with a straight trough 23, described external screw thread 22 and straight trough 23 rounding ofves.The setting party of described straight trough 23 is to parallel with the axis of described main rotating shaft 20, and to proximal extension.
In described main rotating shaft 20, be provided with one time rotating shaft 30, the near-end of described rotating shaft 30 is provided with the external screw thread 33 matching with described female thread, the far-end of described rotating shaft 30 is thorn point 31, at least one side of the thorn point 31 of described rotating shaft 30 is the blade wing 32, preferably the both sides of described thorn point 31 are the symmetrically arranged blade wing 32, better tissue is punctured.The inside of described head 14 is provided with the sharp chute 13 of thorn, and described thorn sharp 31 is in the interior slip of the sharp chute 13 of described thorn, and can limit described rotating shaft 30 and rotate relative to housing 10.
In this preferred embodiment, there is an actuator can drive described main rotating shaft 20 screws.Described actuator is the projection 41 being fixedly installed in nail barrel, and described protruding 41 pass described straight trough slide rail 12 and extend in the external screw thread of periphery of described main rotating shaft 20.
Below in conjunction with Fig. 4 to Fig. 6, use procedure of the present invention once is simply described:
As shown in Figure 4, now described thorn point 31 is housed in the head 14 of described anvil pull rod, and projection 41 extend in described left-handed external screw thread groove 21.When described anvil pull rod is during to distal advancement, projection 41 drives described main rotating shaft 20 to far-end screw.Because the dextrorotation external thread rotary of inferior rotating shaft 30 is to contrary with left-handed external screw thread groove 21 rotation directions, and the thorn point 31 of inferior rotating shaft 30 is circumferentially limited by the sharp chute 13 of described thorn, so described time the relatively described main rotating shaft 20 of rotating shaft 30 stretches out, described thorn point 31 distance that the housing of anvil pull rod is advanced relatively within the unit interval equals the left-handed pitch of external screw thread groove 21 and the externally threaded pitch sum of dextrorotation of time rotating shaft 30.Continue to advance anvil pull rod, make it reach structure as shown in Figure 5, now described thorn point 31 stretches out in the head 14 of described anvil pull rod, can be for piercing tissue.Continue to advance anvil pull rod, now projection 41 enters into the external screw thread groove 21 of dextrorotation, because its rotation direction is identical with the dextrorotation external screw thread of time rotating shaft 30, so described the relatively described main rotating shaft 20 of rotating shaft 30 retracted, makes it reach structure as shown in Figure 6.Continue to advance anvil pull rod, now projection 41 enters into straight trough slide rail, and now main rotating shaft 20 keeps relative static with time rotating shaft 30, and the housing 10 of anvil pull rod continues to distal advancement, completes the cooperation with nail anvil.
31 of thorn points of the present invention use within the short time of piercing tissue, and other most of operating times are regained thorn point, protection patient and doctor.In addition, because thorn point 31 is very sharp, and also there is the symmetrically arranged blade wing 32 most advanced and sophisticated both sides, and the beginning puncturing is also the process of scratching both sides tissue.And due to the existence of thorn point 31, the head of anvil pull rod can be designed to very smooth circular arc or ellipticity, and sharp-pointed without as prior art, thereby guarantee can not accidentally injure other intact tissues or accidental injury doctor in operation.
Near-end in the present invention is the residing position of the relative Shi of operation doctor with far-end.Apart from doctor far away be far-end, apart from doctor nearer be near-end.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection scope of the present invention.
Claims (5)
1. an anvil pull rod, it is characterized in that: comprise that one has the housing (10) of a cavity (11), in described cavity (11), be provided with main rotating shaft (20), described main rotating shaft (20) can move along its axis relative to described housing (10), the far-end of described main rotating shaft (20) is provided with female thread (24), in described main rotating shaft (20), be provided with a rotating shaft (30), the near-end of described rotating shaft (30) is provided with the external screw thread (33) matching with described female thread, the far-end of described rotating shaft (30) is thorn point (31), the periphery of described main rotating shaft (20) comprises at least 2 sections of external screw threads that rotation direction is contrary, wherein be positioned at the rotation direction of external screw thread (21) of far-end contrary with the rotation direction of the external screw thread (33) of described rotating shaft (30), be positioned at the rotation direction of external screw thread (22) of near-end identical with the rotation direction of the external screw thread (33) of described rotating shaft (30), there is an actuator to drive described main rotating shaft (20) screw.
2. anvil pull rod according to claim 1, is characterized in that: at least one side of the thorn point (31) of described rotating shaft (30) is the blade wing (32).
3. anvil pull rod according to claim 2, it is characterized in that: the far-end of described anvil pull rod is an oval-shaped head (14), the inside of described head (14) is provided with the sharp chute of thorn (13), and described thorn point (31) slides in the sharp chute of described thorn (13).
4. anvil pull rod according to claim 1, it is characterized in that: near-end one side of the external screw thread that is positioned at near-end (22) of described main rotating shaft (20) is connected with a straight trough (23), the setting party of described straight trough (23) is to parallel with the axis of described main rotating shaft (20).
5. according to the arbitrary described anvil pull rod of claim 1 to 4, it is characterized in that: described actuator is the projection (41) being fixedly installed in nail barrel, on the housing (10) of described anvil pull rod, be provided with vertically a straight trough slide rail (12), described projection (41) is passed described straight trough slide rail (12) and is extend in the external screw thread of periphery of described main rotating shaft (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210597080.4A CN103908318B (en) | 2012-12-29 | 2012-12-29 | Anvil pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210597080.4A CN103908318B (en) | 2012-12-29 | 2012-12-29 | Anvil pull rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103908318A true CN103908318A (en) | 2014-07-09 |
| CN103908318B CN103908318B (en) | 2016-02-10 |
Family
ID=51034539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210597080.4A Active CN103908318B (en) | 2012-12-29 | 2012-12-29 | Anvil pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103908318B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9833242B2 (en) | 2010-09-30 | 2017-12-05 | Ethicon Endo-Surgery, Llc | Tissue thickness compensators |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647242Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Regulating button for degestive tract anastomat |
| US20070267281A1 (en) * | 2006-05-19 | 2007-11-22 | Ethicon Endo-Surgery, Inc. | Force switch |
| CN201001750Y (en) * | 2007-01-08 | 2008-01-09 | 苏州天臣国际医疗科技有限公司 | Round tubular surgical operation binding instrument |
| EP2111804A2 (en) * | 2004-10-18 | 2009-10-28 | Tyco Healthcare Group Lp | Surgical apparatus and structure for applying sprayable wound treatment material |
| US20100089971A1 (en) * | 2008-09-10 | 2010-04-15 | Milliman Keith L | Surgical stapling device |
| CN102090908A (en) * | 2011-01-20 | 2011-06-15 | 常州安克医疗科技有限公司 | Anastomat tail regulating mechanism |
| CN102652001A (en) * | 2009-12-10 | 2012-08-29 | 伊西康内外科公司 | Surgical stapler with discrete staple height adjustment and tactile feedback |
| CN202982115U (en) * | 2012-12-29 | 2013-06-12 | 苏州天臣国际医疗科技有限公司 | Pull rod for nail anvil |
-
2012
- 2012-12-29 CN CN201210597080.4A patent/CN103908318B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647242Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Regulating button for degestive tract anastomat |
| EP2111804A2 (en) * | 2004-10-18 | 2009-10-28 | Tyco Healthcare Group Lp | Surgical apparatus and structure for applying sprayable wound treatment material |
| US20070267281A1 (en) * | 2006-05-19 | 2007-11-22 | Ethicon Endo-Surgery, Inc. | Force switch |
| CN201001750Y (en) * | 2007-01-08 | 2008-01-09 | 苏州天臣国际医疗科技有限公司 | Round tubular surgical operation binding instrument |
| US20100089971A1 (en) * | 2008-09-10 | 2010-04-15 | Milliman Keith L | Surgical stapling device |
| CN102652001A (en) * | 2009-12-10 | 2012-08-29 | 伊西康内外科公司 | Surgical stapler with discrete staple height adjustment and tactile feedback |
| CN102090908A (en) * | 2011-01-20 | 2011-06-15 | 常州安克医疗科技有限公司 | Anastomat tail regulating mechanism |
| CN202982115U (en) * | 2012-12-29 | 2013-06-12 | 苏州天臣国际医疗科技有限公司 | Pull rod for nail anvil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9833242B2 (en) | 2010-09-30 | 2017-12-05 | Ethicon Endo-Surgery, Llc | Tissue thickness compensators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103908318B (en) | 2016-02-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| 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, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |
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| CP03 | Change of name, title or address |