CN100435744C - Turnover nail-anvil assembly - Google Patents
Turnover nail-anvil assembly Download PDFInfo
- Publication number
- CN100435744C CN100435744C CNB2005100413452A CN200510041345A CN100435744C CN 100435744 C CN100435744 C CN 100435744C CN B2005100413452 A CNB2005100413452 A CN B2005100413452A CN 200510041345 A CN200510041345 A CN 200510041345A CN 100435744 C CN100435744 C CN 100435744C
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- CN
- China
- Prior art keywords
- anvil
- pin
- nail
- ring
- shaft
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- 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.)
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
Abstract
The invention discloses a pin anvil component of surgical stapling element, which comprises the following parts: pin anvil ring, knife anvil and pin anvil shaft, wherein the knife anvil is set in the pin anvil ring to contact; the pin anvil ring connects pin anvil shaft at pivoting pattern; the elastic locking piece and auxiliary mechanism are set in the connecting region, which winds the pin anvil shaft.
Description
Technical field
The present invention relates to the employed Binding Instrument of surgical operation, be in particular the nail-anvil assembly of binding device for surgery, especially a kind ofly implement to bind the nail-anvil assembly that pin anvil ring can overturn after the operation, belong to technical field of medical instruments.
Technical background
Binding device for surgery is a kind of medical apparatus and instruments that often uses when physiological tissues such as intestinal are carried out surgical operation, and the difference of this instrument performance plays crucial effects for the whole surgery effect.Bookbinding form in this class Binding Instrument mostly adopts is axially organized containingly for two sections during bookbinding, forms binder ring at organization internal.The advantage of this apparatus is: the body that produces in the operation process is hemorrhage can be along with content be discharged together, and operation back body tissue ratio is easier to healing.But, because bookbinding back nail-anvil assembly and nail bin groupware are in the both sides of binder ring respectively, nail-anvil assembly must pass through binder ring when taking out Binding Instrument, and needing for bookbinding, the maximum gauge of nail-anvil assembly is greater than the internal diameter of binder ring, so nail-anvil assembly must touch binder ring in the removal equipment process after surgery, even can destroy the shape of binder ring.The existence of this phenomenon is unfavorable for postoperative body tissue restore funcitons, causes postoperative complication easily, brings side effect to patient, and surgical effect is greatly reduced.
At above situation, the way that prior art is taked is: the nail grooving is arranged on the edge of pin anvil ring as far as possible, makes the maximum gauge of nail-anvil assembly be in close proximity to the internal diameter of binder ring, so that nail-anvil assembly contacts binder ring less during removal equipment.This has alleviated above-mentioned technical barrier to a certain extent, but effect is also not obvious, because in order to guarantee the sealing effectiveness of binder ring, the nail grooving will be provided with inside and outside two circles at least generally speaking, certainly exist enough big gap between nail-anvil assembly maximum gauge and the binder ring internal diameter this moment.So this approach exists the limit of design and processing aspect, the approach of must seeking in addition of dealing with problems better.
Summary of the invention
The objective of the invention is to overcome the above problem of prior art existence, provide a kind of operation to take out easily afterwards, binder ring is influenced less turnover nail-anvil assembly.
Purpose of the present invention realizes by following technical solution:
Turnover nail-anvil assembly, comprise pin anvil ring, cutter anvil and pin anvil shaft, the cutter anvil places pin anvil ring inside, and both closely contact, it is characterized in that: pin anvil ring pivotally links to each other with pin anvil shaft, and join domain is provided with the elastic collet and the auxiliary body that can make pin anvil ring that upset takes place around pin anvil shaft.
Purpose of the present invention also can further realize by following technical measures:
Aforesaid turnover nail-anvil assembly, wherein: this nail-anvil assembly also is provided with dwang, and the upside of dwang is the staged frustum cone structure, is fixed on the pin anvil ring top, and downside is a connecting rod, and pivotally links to each other with pin anvil shaft, and elastic collet is enclosed within on the connecting rod; Described elastic collet is provided with bayonet socket, flanging and keeps out face, under the original state, the flanging of the inner ring of cutter anvil compressing elastic collet supports under the cooperation of piece in the inner upset that is provided with of pin anvil ring, the upset distortion takes place in the elastic collet central area, and the face of keeping out is against the front end face of pin anvil shaft; Described auxiliary body cooperates elastic collet to make pin anvil ring realize upset after this nail-anvil assembly uses.
Further, above-mentioned auxiliary body can be a spring, and it places between dwang and the pin anvil shaft, and its upper end is fixed on above the button hole of dwang end, the lower end pin joint is in pin anvil shaft inside, and under the original state, spring is extended state; Also can be a retaining platform, it be arranged at the connecting rod position of dwang; Can also be a catch, its end be fixed on the elastic collet, and the other end is resisted against the front end face of pin anvil shaft all the time, and can be along the front end face slippage of pin anvil shaft.
Further, when auxiliary body adopts spring, preferred version is: be used on the pin anvil shaft pin joint dwang and this spring two pins and the center line and the centrage of pin anvil shaft not parallel, cross-shaped attitude, especially the pin that is used for the pin joint dwang on the pin anvil shaft is in eccentric position, help spring like this and work, make the pin anvil ring upset.
In addition, in the middle of the above-mentioned various turnover nail-anvil assemblies, nail-anvil cap can also be equipped with in its top, and nail-anvil cap is fixedly linked by modes such as rivet hot and pin anvil ring.
The present invention is directed to existing binding device for surgery and implement the technical problem that the bookbinding operation exists, make general integral nail anvil assembly into a plurality of parts assembling forms, and portion is provided with dwang within it, be with elastic collet on the dwang, the dwang upside is fixed on the pin anvil ring top, and following lateral connector bar pivotally links to each other with pin anvil shaft.The nail bin groupware of this nail-anvil assembly and Binding Instrument body part couples together by anvil pull rod, use for implementing the surgical binding operation: under the original state, the flanging of the inner ring compressing elastic collet of cutter anvil, support under the cooperation of piece in the inner upset that is provided with of pin anvil ring, the upset distortion takes place in the elastic collet central area; During operation, Binding Instrument cutting knife in bookbinding tissue amputation knife anvil that travels forward, cutting knife retreats a cutter anvil inner ring and takes away then, like this, elastic collet is in the effect of self elastic force spring-go position next time, under the cooperation of the inner various auxiliary bodies that are provided with of this nail-anvil assembly, pin anvil ring just can overturn around pin anvil shaft in the reseting procedure; Perhaps, the outer ring of elastic collet is against the inboard of cutter anvil under the original state, compressing elastic collet after the annular cutting knife cuts off the cutter anvil during operation, the catch that is arranged on the elastic collet props up the pin anvil shaft front end, elastic collet is overturn, and cutting knife retreats a cutter anvil inner ring and takes away then, and elastic collet resets, catch makes pin anvil ring overturn around pin anvil shaft along the slippage of pin anvil shaft front end.The operative doctor Binding Instrument fuselage that suitably tilts from the outside can withdraw whole Binding Instrument easily in addition.This scheme helps the removal equipment that finishes of performing the operation, and nail-anvil assembly greatly reduces the probability that influences of binder ring, has further guaranteed surgical effect.
Description of drawings
Choose exemplary embodiment contrast accompanying drawing below and be described in detail architectural feature of the present invention, assembling and use, thereby technical scheme of the present invention and characteristics are described further.Wherein:
Fig. 1 is first kind of explosive decomposition three-dimensional view after the embodiment assembling;
Fig. 2: Fig. 2 a is the three-dimensional view of elastic collet under the naturalness, and Fig. 2 b is the three-dimensional view of elastic collet after Fig. 2 a is out of shape through the center upset;
Fig. 3: Fig. 3 a is first kind of axial section after the embodiment assembling, and Fig. 3 b is the later axial section of Fig. 3 a upset;
Fig. 4: Fig. 4 a is the axial section of the another kind of assembling form of first kind of embodiment, and Fig. 4 b is the later axial section of Fig. 4 a upset;
Fig. 5: Fig. 5 a is second kind of axial section after the embodiment assembling, and Fig. 5 b is the later axial section of Fig. 5 a upset.
Fig. 6: Fig. 6 a is the axial section after the third embodiment assembling, Fig. 6 b is that annular cutting knife compressing elastic collet makes its upset distortion axial section afterwards in the third embodiment, and Fig. 6 c is that Fig. 6 b is withdrawing from annular cutting knife, the later axial section of pin anvil ring generation upset.
The implication of each Reference numeral is among the figure: 1-nail-anvil cap, 2-dwang, 3-pin anvil ring, 4-cutter anvil, cutter anvil outer ring after 4 '-cut-out, 5-elastic collet, 6-pin anvil shaft, 7-spring, the 8-pin, 9-pin, 10-button hole, the 11-boss, the 12-groove, piece is supported in the 13-upset, the 14-bayonet socket, the 15-flanging, 16-keeps out face, 17-keeps off platform, 18-catch, 19-annular cutting knife.
The specific embodiment
" embodiment one "
As Fig. 1～shown in Figure 4, this nail-anvil assembly includes nail-anvil cap 1, dwang 2, pin anvil ring 3, cutter anvil 4, elastic collet 5 and pin anvil shaft 6.Pin anvil ring 3 is provided with upset and supports piece 13; Elastic collet 5 is provided with bayonet socket 14, flanging 15, keeps out face 16; Dwang 2 upsides are staged frustum cone structures, are fixed on the top of pin anvil ring 3, and downside is a connecting rod, and the connecting rod end is provided with button hole 10, and elastic collet 5 is enclosed within the connecting rod outside.
During installation, earlier dwang 2 is passed and is fixed on the pin anvil ring 3, spring 7 one end plugs are gone in the front aperture of pin anvil shaft 6, with pin 9 an end pinning of spring 7, elastic collet 5 is enclosed within above the dwang 2, the other end of spring 7 is enclosed within the middle of the button hole 10 of dwang 2, reuse pin 8 is pivotally connected dwang 2 and pin anvil shaft 6 again.Then, fill in nail-anvil cap 1 from the top, itself and pin anvil ring 3 are fixed; Be inserted in cutter anvil 4 from the bottom, make the bottom of cutter anvil 4 inner rings press the flanging 15 of elastic collet 5, and make boss 11 on cutter anvil 4 outer rings be stuck in groove 12 the insides of pin anvil ring 3 inner rings.So just, can fix cutter anvil 4, and upset distortion behind elastic collet 5 pressurizeds, keep out the front end face that face 16 props up pin anvil shaft 6, bayonet socket 14 is stuck on the cylinder of dwang 2, makes dwang 2 and pin anvil shaft 6 be in same shaft core position.
The nail bin groupware of this nail-anvil assembly and Binding Instrument body part couples together by anvil pull rod, uses for implementing the surgical binding operation.During operation, Binding Instrument cutting knife in bookbinding tissue amputation knife anvil 4 that travels forward, cutting knife retreats the inner ring of cutter anvil 4 is taken away when backing out nail-anvil assembly and nail bin groupware, like this, elastic collet 5 is in the effect of self elastic force spring-go position next time, keep out the front end face of face 16 disengaging pin anvil shafts 6, dwang 2 deflects around bearing pin 8 with pin anvil shaft 6 under the pulling force effect of spring 7.Because pin anvil shaft 6 links together by anvil pull rod and Binding Instrument body, thereby show as whole nail-anvil assembly generally and overturn.The operative doctor Binding Instrument fuselage that suitably tilts from the outside in addition, just can withdraw whole Binding Instrument easily, nail-anvil assembly---the pin anvil ring 3 of diameter maximum especially, the contact and the degree of damaging of the binder ring that organization internal operation back is formed can drop to minimum.
Drive pin anvil ring 3 upsets for helping dwang 2, the reasonable plan of establishment is: the center line that is used for two pins 8 and 9 of pin joint dwang 2 and spring 7 on the pin anvil shaft 6, not parallel with the centrage of pin anvil shaft 6, cross-shaped attitude, especially sell 8 and be in eccentric position, help spring 7 like this and work, make the pin anvil ring upset.On concrete two kinds of set-up modes are arranged, the one, pin 8 is arranged on the center, and sells 9 eccentric settings, shown in Fig. 3 a and Fig. 3 b; Another kind is that pin 9 is arranged on the center, and sells 8 eccentric settings, shown in Fig. 4 a and Fig. 4 b.
" embodiment two "
Shown in Fig. 5 a/5b.Present embodiment and embodiment one are similar, and difference is: auxiliary switching mechanism is not to adopt spring 7 but employing retaining platform 17.Retaining platform 17 is arranged on the connecting rod position of dwang 2, when bookbinding finishes when backing out nail-anvil assembly and nail bin groupware, cutting knife is taken away the inner ring of the cutter anvil 4 that has just cut off, elastic collet 5 is in reseting procedure, one side of its inner ring props up retaining platform 17, and the outer ring is against the fracture protrusion place of the cutter anvil outer ring 4 ' after the cut-out, under the effect as the end limit of the pin anvil shaft 6 of fulcrum, nail-anvil assembly is overturn.
" embodiment three "
Shown in Fig. 6 a/6b/6c.Present embodiment is also similar with embodiment one, and difference is: nail-anvil assembly inside is not provided with dwang, and pin anvil shaft 6 directly pivotally links to each other with pin anvil ring 3; And auxiliary switching mechanism is not to adopt spring 7 but employing catch 18, and catch 18 1 ends are fixed on above the elastic collet 5, and the other end is resisted against the front end face of pin anvil shaft 6 all the time, and can be along the front end face slippage of pin anvil shaft 6.
Under the original state, the outer ring of elastic collet 5 is against the inboard of cutter anvil 4, compressing elastic collet 5 after annular cutting knife 19 cuts off cutter anvil 4 during operation, the catch 18 that is arranged on the elastic collet props up pin anvil shaft 6 front ends, make elastic collet 5 that upset take place and fix, cutting knife 19 retreats a cutter anvil inner ring and takes away then, and the catch 18 on the elastic collet 5 resets, catch 18 makes pin anvil ring 3 overturn around pin anvil shaft 6 along pin anvil shaft 6 front end slippages.
More than among each embodiment, can be taken away smoothly by cutting knife for the cutter anvil inner ring after guaranteeing to cut off, can select cutting knife and the present invention of having recessed hook on the wall to be used, its implementation result is better.
Claims (7)
1. turnover nail-anvil assembly, comprise pin anvil ring [3], cutter anvil [4] and pin anvil shaft [6], cutter anvil [4] places pin anvil ring [3] inside, both closely contact, it is characterized in that: pin anvil ring [3] pivotally links to each other with pin anvil shaft [6], and join domain is provided with the elastic collet [5] and the auxiliary body that can make pin anvil ring [3] that upset takes place around pin anvil shaft [6]; This nail-anvil assembly also is provided with dwang [2], and the upside of dwang [2] is the staged frustum cone structure, is fixed on pin anvil ring [3] top, and downside is a connecting rod, and pivotally links to each other with pin anvil shaft [6], and elastic collet [5] is enclosed within on the connecting rod; Described elastic collet [5] is provided with bayonet socket [14], flanging [15] and keeps out face [16], under the original state, the flanging [15] of the inner ring compressing elastic collet [5] of cutter anvil [4], support under the cooperation of piece [13] in the inner upset that is provided with of pin anvil ring [3], the upset distortion takes place in elastic collet [5] central area, keeps out the front end face that face [16] is against pin anvil shaft [6]; Described auxiliary body cooperates elastic collet [5] to make pin anvil ring [3] realize upset after this nail-anvil assembly uses.
2. turnover nail-anvil assembly according to claim 1, it is characterized in that: described auxiliary body is a spring [7], it places between dwang [2] and the pin anvil shaft [6], its upper end is fixed on above the terminal button hole [10] of dwang [2], the lower end pin joint is in pin anvil shaft [6] inside, under the original state, spring [7] is extended state.
3. turnover nail-anvil assembly according to claim 2 is characterized in that: be used for the center line of two pins [8,9] of pin joint dwang [2] and spring [7] and the cross-shaped attitude of centrage of pin anvil shaft [6] above the described pin anvil shaft [6].
4. turnover nail-anvil assembly according to claim 3 is characterized in that: the pin [8] that is used for pin joint dwang [2] above the described pin anvil shaft [6] is in eccentric position.
5. turnover nail-anvil assembly according to claim 1 is characterized in that: described auxiliary body is a retaining platform [17], and it places the connecting rod position of dwang [2].
6. turnover nail-anvil assembly according to claim 1, it is characterized in that: described auxiliary body is a catch [18], its end is fixed on the elastic collet [5], and the other end is resisted against the front end face of pin anvil shaft [6] all the time, and can be along the front end face slippage of pin anvil shaft [6].
7. turnover nail-anvil assembly according to claim 1 is characterized in that: nail-anvil cap [1] also is equipped with at this nail-anvil assembly top, and nail-anvil cap [1] is fixedly linked by rivet hot mode and pin anvil ring [3].
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100413452A CN100435744C (en) | 2005-08-04 | 2005-08-04 | Turnover nail-anvil assembly |
| PCT/CN2006/001758 WO2007014513A1 (en) | 2005-08-04 | 2006-07-19 | A turnoverable stapler anvil assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100413452A CN100435744C (en) | 2005-08-04 | 2005-08-04 | Turnover nail-anvil assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1907239A CN1907239A (en) | 2007-02-07 |
| CN100435744C true CN100435744C (en) | 2008-11-26 |
Family
ID=37698586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100413452A Active CN100435744C (en) | 2005-08-04 | 2005-08-04 | Turnover nail-anvil assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100435744C (en) |
| WO (1) | WO2007014513A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8496157B2 (en) | 2011-02-18 | 2013-07-30 | Covidien Lp | Tilting anvil for annular surgical stapler |
| US20120265241A1 (en) * | 2011-04-12 | 2012-10-18 | Tyco Healthcare Group Lp | Surgical Forceps and Method of Manufacturing Thereof |
| CN104220011A (en) * | 2012-02-24 | 2014-12-17 | 广州医科大学附属第二医院 | Surgical stapler and stapling method using stapler |
| CN104107078A (en) * | 2013-04-19 | 2014-10-22 | 瑞奇外科器械(中国)有限公司 | Anastomat and nail anvil component thereof |
| CN105581818B (en) * | 2014-10-24 | 2018-08-07 | 天津瑞奇外科器械股份有限公司 | The nail-anvil assembly and surgical operating instrument of surgical operating instrument |
| US10111668B2 (en) * | 2015-07-02 | 2018-10-30 | Covidien Lp | Anvil assembly with snap backup ring |
| CN107822684B (en) * | 2017-12-18 | 2023-07-07 | 常州贺利氏微创医疗器械有限公司 | Nail supporting seat device for tubular anastomat |
| US11033273B2 (en) * | 2018-03-28 | 2021-06-15 | Covidien Lp | Surgical anvil assemblies for surgical stapling instruments |
| CN110251180A (en) * | 2019-07-09 | 2019-09-20 | 北京博辉瑞进生物科技有限公司 | A kind of nail-anvil assembly and the stapler using the nail-anvil assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5639008A (en) * | 1994-08-25 | 1997-06-17 | The United States Surgical Corporation | Anvil for circular stapler |
| US6053390A (en) * | 1992-05-19 | 2000-04-25 | United States Surgical | Anvil for surgical stapler |
| CN2383476Y (en) * | 1999-02-10 | 2000-06-21 | 张祖仁 | Surgical tubular anastomat |
| CN2461494Y (en) * | 2000-07-06 | 2001-11-28 | 张祖仁 | Tubular anastomat for surgery |
| WO2002080781A2 (en) * | 2001-04-03 | 2002-10-17 | Tyco Healthcare Group Lp | Surgical stapling device for performing circular anastomoses |
| CN2838552Y (en) * | 2005-08-04 | 2006-11-22 | 苏州天臣国际医疗科技有限公司 | Turnable pin anvil assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5860581A (en) * | 1994-03-24 | 1999-01-19 | United States Surgical Corporation | Anvil for circular stapler |
| US6193129B1 (en) * | 2000-01-24 | 2001-02-27 | Ethicon Endo-Surgery, Inc. | Cutting blade for a surgical anastomosis stapling instrument |
-
2005
- 2005-08-04 CN CNB2005100413452A patent/CN100435744C/en active Active
-
2006
- 2006-07-19 WO PCT/CN2006/001758 patent/WO2007014513A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6053390A (en) * | 1992-05-19 | 2000-04-25 | United States Surgical | Anvil for surgical stapler |
| US5639008A (en) * | 1994-08-25 | 1997-06-17 | The United States Surgical Corporation | Anvil for circular stapler |
| CN2383476Y (en) * | 1999-02-10 | 2000-06-21 | 张祖仁 | Surgical tubular anastomat |
| CN2461494Y (en) * | 2000-07-06 | 2001-11-28 | 张祖仁 | Tubular anastomat for surgery |
| WO2002080781A2 (en) * | 2001-04-03 | 2002-10-17 | Tyco Healthcare Group Lp | Surgical stapling device for performing circular anastomoses |
| CN2838552Y (en) * | 2005-08-04 | 2006-11-22 | 苏州天臣国际医疗科技有限公司 | Turnable pin anvil assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007014513A1 (en) | 2007-02-08 |
| CN1907239A (en) | 2007-02-07 |
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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 international science and Technology Park, 328 Airport Road, Suzhou Industrial Park, Suzhou, Jiangsu, A405 Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |