CN203328752U - Anastomat anvil assembly and anastomat - Google Patents
Anastomat anvil assembly and anastomat Download PDFInfo
- Publication number
- CN203328752U CN203328752U CN2013203088886U CN201320308888U CN203328752U CN 203328752 U CN203328752 U CN 203328752U CN 2013203088886 U CN2013203088886 U CN 2013203088886U CN 201320308888 U CN201320308888 U CN 201320308888U CN 203328752 U CN203328752 U CN 203328752U
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- nail
- anvil
- anastomat
- seat
- nail anvil
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Abstract
The utility model provides an anastomat anvil assembly and an anastomat. The anastomat anvil assembly comprises an anvil and an anvil rod in rotary connection with the anvil. The anvil is provided with an anvil seat. The anvil rod is provided with the connecting end, wherein the connection end is in rotary connection with the anvil seat through a horizontally arranged pin shaft, and a torsion spring penetrates the pin shaft. The anvil seat is provided with a first limiting portion for abutting against one end of the torsion spring, the connecting end is provided with a second limiting portion for abutting against the other end of the torsion spring, and an elastic sliding sleeve for limiting relative rotation of the anvil rod and the anvil is sleeved on the connecting end and the anvil seat. The bottom of the anvil seat is provided with a retaining face in interference fit with the inner wall of the elastic sliding sleeve. The anastomat anvil assembly achieve switching of an overturn state and a vertical state through the elastic sliding sleeve sleeved outside the connecting end and the anvil seat, force bearing points of two ends of the torsion spring are single and stable, inside installing parts are decreased, and the anastomat anvil assembly and the anastomat are easy to install and has the advantages of being simple in structure, easy to install and operate.
Description
Technical field
This utility model relates to the surgical operation medical device technology, relates in particular to a kind of anastomat nail-anvil assembly and anastomat.
Background technology
The first anastomat is for nearly century of gastrointestinal anastomosis in the world, until tube type anastomat in 1978 just is widely used in gastrointestinal procedures, anastomat also is stapler.Generally be divided into disposable or nonexpondable anastomat, it is the equipment that the alternative traditional-handwork that medically uses is sewed up, due to the development of modern science and technology and the improvement of manufacturing technology, the anastomat reliable in quality of using clinically at present, easy to use, tightly, degree of tightness is suitable, especially quick, easy and simple to handle the reaching of its stitching seldom has the advantages such as side effect and postoperative complication, sometimes the tumor operation that can't excise of also making over is able to lesion resection, is subject to very much the domestic and international doctor's of Clinical Surgery favor and high praise.
The performance difference of anastomat plays vital effect to whole surgical effect, anastomat adopts axially interior bookbinding form mostly at present, mainly comprise nail-anvil assembly, the nail kit assembly, for pulling the trigger percussion lock and the device body of staple of nail kit assembly, nail kit assembly and percussion lock are arranged on it device, nail-anvil assembly removably is connected with percussion lock, a kind of syndeton commonly used is provided here, referring to Fig. 1-3, the nail anvil rod bottom is the shuttle shape, shuttle shape section top has a draw-in groove, this shuttle shape section is through the hole clipping of the percussion lock of device body inside, elastic changeable diameter can occur by an elastomeric element in this hole clipping when shuttle shape section snaps in it, treat that being mated rear bayonet in draw-in groove insertion hole clipping, by this elastomeric element, the elastic shrinkage distortion can occur, make nail anvil rod and percussion lock link together, in the nail kit assembly, staple is installed, percussion lock is for pulling the trigger the staple in the nail kit assembly, make it with nail-anvil assembly, coordinate stitching, during bookbinding, at first by two sections, organize end to be connected all to be positioned between nail-anvil assembly and nail kit assembly, percussion by percussion lock, the staple be circular layout in the nail kit assembly coordinates with nail-anvil assembly to produce is out of shape, by two sections, organize stapled together, form the binder ring of a closure at organization internal, but, because nail-anvil assembly and nail kit assembly after bookbinding lay respectively at the both sides of binder ring, must pass through binder ring while taking out nail-anvil assembly, but, the maximum gauge of nail-anvil assembly is greater than the internal diameter of binder ring, must touch binder ring so take out after surgery nail-anvil assembly, even can destroy the shape of binder ring, this phenomenon is unfavorable for the reply of postoperative body tissue, easily cause postoperative complication, side effect is large, reduced surgical effect.
For above situation, prior art has adopted the nail-anvil assembly of turning structure, and the relative nail anvil rod of nail anvil is turning, and the upset by nail anvil in the taking-up process reduces binding annular destructiveness, and reaches surgical effect, and prior art is as follows:
Prior art one
As Figure 1-3, the anastomat nail-anvil assembly comprises nail anvil 6 and the nail anvil rod 8 be rotationally connected, there is supporting disk 2 and nail anvil seat 4 on nail anvil 6, nail anvil rod 8 is rotationally connected by bearing pin 5 and nail anvil seat 4, between nail anvil seat 4 and supporting disk 2, spring 7 is installed, state shown in Fig. 2 is initial condition, spring 7 is in compressive state, conflict and make nail anvil rod 8 keep vertical with nail anvil 6 baseplanes with the step surface on nail anvil rod 8 in nail anvil seat 4 bottoms, give 6 one external force of nail anvil, make its upwards upset, the elastic potential energy that spring 7 stores discharges, nail anvil 6 rotates relative to nail anvil rod 8, and maintenance rollover states, as shown in Figure 3, the technical program medi-spring 7 end positions are unstable, be difficult to install, and the strong point of spring end and supporting disk is more, easily cause unbalance stress, make disabler.
Prior art two
As shown in Fig. 4-6, nail anvil 6 is comprised of spring 7, protruding axle 154 and locking plate 126 with the overturn structure of nail anvil rod 8, nail anvil rod 8 inside have step, spring 7 is arranged in protruding axle 154 bottoms, and be held between the boss 167 at the step of nail anvil rod 8 inside and protruding axle 154 tops, nail anvil rod 8 is rotationally connected by bearing pin 5 with locking plate 126, curved surface 126c conflicts with the projection 166 be located on boss 167, under original state, supporting disk 2 is at initial position, support the cooperation position 152b of nail anvil rod 8, keeping vertical state; Under the promotion of external force, supporting disk 2 is pushed down, and coordinates the support at 152b place, position to be broken, and the protruding axle 154 in nail anvil rod 8 discharges potential energy under the effect of spring 7, promotes nail anvil rod 8 around bearing pin 5 rotations, realizes turn over function.In the technical program, there is more part to be full of in the space of nail anvil and nail anvil rod, make volume reduce, implement difficulty larger.
The utility model content
This utility model provides a kind of anastomat nail-anvil assembly and anastomat, for overcoming defect of the prior art, simple in structure, be easy to install and convenient operation.
The anastomat nail-anvil assembly that this utility model provides, comprise the nail anvil rod that a nail anvil and an end and nail anvil are rotationally connected; Described nail anvil one end face has the nail anvil seat; Nail anvil rod has a link, this link is rotationally connected by horizontal bearing pin and a nail anvil seat, it is characterized in that, be equipped with torsion spring on described bearing pin, there is the first limiting section for torsion spring one end of conflicting on described nail anvil seat, described link has the second limiting section for the torsion spring other end of conflicting, and is arranged with one on described link and nail anvil seat for limiting nail anvil rod and nail anvil elastomeric sleeve in relative rotation; Nail anvil seat bottom have one for after elastomeric sleeve generation strain with the retaining face of its inwall interference fit.
Particularly, the nail anvil seat comprises a column pedestal and the connecting plate of two relative vertically-arrangeds on this column pedestal, and column base bottom and nail anvil are fixed, and column pedestal top forms the lower limit step, the all sides of column pedestal are the retaining face, the inwall interference fit of retaining face and elastomeric sleeve; Described link comprises the two vertically-arranged plates that relatively arrange, and this vertically-arranged plate outside has the upper limit step, and elastomeric sleeve is defined between this upper limit step and lower limit step.
Wherein, on connecting plate and vertically-arranged plate, be equipped with for wearing the perforating of bearing pin, the upper limit step is positioned at the perforating below be located on the vertically-arranged plate.
Wherein, described lower limit step is taper, and increases gradually from nearly nail anvil rod end to nail anvil rod end size far away.
Further, described the first limiting section and the second limiting section are spacing hole, and described spacing hole is located on the nail anvil seat or, on link, insert in this spacing hole described torsion spring end.
Further, described the first limiting section and the second limiting section are confined planes, and described confined planes is located on the nail anvil seat or, on link, conflict on this confined planes in described torsion spring end.
Particularly, described spacing hole is arranged on the column base between two connecting plates, and this spacing hole inwall forms the first limiting section.
Particularly, the link of described nail anvil rod is sleeve-shaped, and described nail anvil rod inwall forms the second limiting section.
Further, described elastomeric sleeve has a stress surface with the end that described upper limit step contacts, all sides of protruding this elastomeric sleeve in described stress surface edge.
The anastomat nail-anvil assembly that this utility model provides, during installation, at first elastomeric sleeve is pushed on the retaining face of nail anvil seat, then torsion spring is installed, and make the torsion spring two ends coordinate with the first limiting section and the second limiting section respectively, group is to nail anvil seat and link, by bearing pin, nail anvil seat, torsion spring and link are coupled together, now, torsion spring is in stress and stored elastic potential energy, finally elastomeric sleeve is passed to link from the retaining face, thus the release of restriction torsion spring elastic potential energy, during use, elastomeric sleeve is at the percussion effect lower stress of percussion lock, and be passed to the retaining face, now, the torsion spring elastic potential energy is released, promote the relative nail anvil rod upset of nail anvil, and remain on rollover states, so that take out from binder ring, this utility model is realized the conversion of upset and erectility by the elastomeric sleeve that is set in link and nail anvil seat outside, relative prior art one, the stressed strong point in torsion spring two ends is single and stable, be easy to install, relative prior art two, do not need protruding axle, reduced inner installed part, and whether relatively the resilient sleeve that is placed in the nail anvil rod outside by operation controls nail anvil nail anvil rod upset, have simple in structure, be easy to the advantage of installing and operating.
This utility model also provides a kind of anastomat, this anastomat comprises nail-anvil assembly, nail kit assembly, percussion lock and device body for pulling the trigger staple in the nail kit assembly, described nail kit assembly and described percussion lock are arranged on it described device, described nail-anvil assembly removably is connected to described percussion lock, and described nail-anvil assembly is above-mentioned anastomat nail-anvil assembly.
The anastomat that this utility model provides, by the change of nail-anvil assembly structure, simplified the overall structure of anastomat, and be easy to install and operation.
The accompanying drawing explanation
The axonometric chart that Fig. 1 is prior art one;
The using state reference view one that Fig. 2 is prior art one;
The using state reference view two that Fig. 3 is prior art one;
The perspective exploded view that Fig. 4 is prior art two;
The using state reference view one that Fig. 5 is prior art two;
The using state reference view two that Fig. 6 is prior art two;
The perspective exploded view of the anastomat nail-anvil assembly that Fig. 7 provides for this utility model embodiment;
The using state reference view one of the anastomat nail-anvil assembly that Fig. 8 provides for this utility model embodiment;
The using state reference view two of the anastomat nail-anvil assembly that Fig. 9 provides for this utility model embodiment;
The partial sectional view of the anastomat nail-anvil assembly that Figure 10 provides for this utility model embodiment;
The axonometric chart of the anastomat that Figure 11 provides for this utility model embodiment.
The specific embodiment
Embodiment mono-
As shown in Fig. 7-11, this utility model embodiment provides a kind of anastomat nail-anvil assembly, comprises the nail anvil rod 8 that a nail anvil 6 and an end and nail anvil 6 are rotationally connected; Nail anvil 6 one end faces have a nail anvil seat 4; Nail anvil rod 8 has a link 81, this link 81 is rotationally connected with nail anvil seat 4 by a horizontal bearing pin 5, be equipped with torsion spring 9 on bearing pin 5, there is the first limiting section 10 for torsion spring 9 one ends of conflicting on nail anvil seat 4, link 81 has the second limiting section 20 for torsion spring 9 other ends of conflicting, and is arranged with one on link 81 and nail anvil seat 4 for limiting nail anvil rod 8 and nail anvil 6 elastomeric sleeve 11 in relative rotation; Nail anvil seat 4 bottoms have one for after at elastomeric sleeve 11, strains occurring with the retaining face 12 of its inwall interference fit.
The anastomat nail-anvil assembly that this utility model provides, during installation, at first elastomeric sleeve 11 is pushed on the retaining face 12 of nail anvil seat 4, torsion spring 9 is installed again, and make torsion spring 9 two ends coordinate with the first limiting section 10 and the second limiting section 20 respectively, group is to nail anvil seat 4 and link 81, by bearing pin 5 by nail anvil seat 4, torsion spring 9 couples together with link 81, now, nail anvil 6 in a state of nature, vertical with nail anvil rod 8, as shown in Figure 8, torsion spring 9 is in stress and stored elastic potential energy, finally elastomeric sleeve 11 is passed to link 81 from retaining face 12, thereby limit the release of torsion spring 9 elastic potential energys, during use, elastomeric sleeve 11 is at the percussion effect lower stress of percussion lock, and be passed to retaining face 12, now, torsion spring 9 elastic potential energys are released, promote relative nail anvil rod 8 upsets of nail anvil 6, as shown in Figure 9, and remain on rollover states, so that take out from binder ring, passing through in this utility model is set in the elastomeric sleeve of link and nail anvil seat outside and realizes, relative prior art one, the stressed strong point in torsion spring two ends is single and stable, be easy to install, relative prior art two, do not need protruding axle, the parts that are arranged on nail anvil rod inside have been reduced, and whether relatively the resilient sleeve that is placed in the nail anvil rod outside by operation controls nail anvil nail anvil rod upset, have simple in structure, be easy to the advantage of installing and operating.In the present embodiment, nail anvil 6 is and covers shape, and nail anvil 6 outer walls are curved, are convenient to penetrate the intestines and stomach, and nail anvil 6 internal faces are fixedly connected with the nail anvil seat, and nail anvil seat and nail anvil rod are rotationally connected.
As above-described embodiment, improve further, nail anvil seat 4 comprises a column pedestal 41 and the connecting plate 42 of two relative vertically-arrangeds on this column pedestal 41, column base bottom and supporting disk 2 are fixing, top forms lower limit step 43, all sides are retaining face 12, retaining face 12 and elastomeric sleeve 11 inwall interference fit; Link 81 comprises the two vertically-arranged plates 82 that relatively arrange, and this vertically-arranged plate outside has upper limit step 83, and elastomeric sleeve 11 is defined between this upper limit step 83 and lower limit step 43.
Upper limit step and lower limit step define the axial location of elastomeric sleeve, have increased stability and the reliability of nail-anvil assembly.The interior wall energy of elastomeric sleeve 11 coordinates with retaining face 12 under external force.Be equipped with the perforating 50 for wearing bearing pin 5 on connecting plate 42 and vertically-arranged plate 82, in the present embodiment, upper limit step 83 is positioned at perforating 50 belows that are located on vertically-arranged plate 82, when if perforating 50 is stretched out at bearing pin 5 two ends, can, so that elastomeric sleeve 11 is avoided bearing pin 5 two ends when original state, avoid friction.
Preferred implementation as above-described embodiment, as shown in figure 10, for the ease of elastomeric sleeve, can be pushed to smoothly on the retaining face, lower limit step 43 is taper, and increase gradually from nearly nail anvil rod end to nail anvil rod end size far away, Figure 10 shows that size increases gradually from top to bottom, in the situation that elastomeric sleeve is not subject to external force, the lower limit step has spacing effect; The used time is done in the percussion that is subject to percussion lock when elastomeric sleeve, and the lower limit step also has the transition guide effect.Here refer to the end near vertically-arranged plate 82 on, under refer to the end away from vertically-arranged plate 82.
In above-described embodiment, the first limiting section 10 or the second limiting section 20 can be spacing holes, can be also confined planes, specifically can on nail anvil seat or link, have spacing hole, and insert in this spacing hole the torsion spring end.Having confined planes on nail anvil seat or link, conflicts on this confined planes in the torsion spring end.
In the present embodiment, as shown in figure 10, the link of nail anvil rod is sleeve-shaped, and the nail anvil rod inwall forms the second limiting section 20.Spacing hole is arranged on the column base between two connecting plates, and this spacing hole forms the first limiting section 10.
For the ease of the percussion elastomeric sleeve, the end that elastomeric sleeve 11 contacts with the upper limit step has stress surface 110.When percussion lock is pulled the trigger, this stress surface is subject to active force, and stability under loading is improved in all sides of protruding this elastomeric sleeve in described stress surface edge preferably, guarantees stressedly evenly to avoid hitting partially, overturns malfunctioning.
As shown in figure 11, this utility model embodiment also provides a kind of anastomat, this anastomat comprises nail-anvil assembly A1, nail kit assembly A2, for pulling the trigger percussion lock A3 and the device body A4 of staple in the nail kit assembly, nail kit assembly A2 and percussion lock A3 are arranged on device body A4, percussion lock A3 is for pulling the trigger the staple in nail kit assembly A2, make staple coordinate stitching with nail-anvil assembly A1, the anastomat nail-anvil assembly that nail-anvil assembly A1 is above-mentioned any embodiment, nail-anvil assembly A1 removably is connected with percussion lock A3, the syndeton of nail-anvil assembly A1 and percussion lock A3 can be referring to the concrete syndeton of nail-anvil assembly and percussion lock in existing anastomat, the anastomat that this utility model provides, change by the nail-anvil assembly structure, simplified the overall structure of anastomat, and be easy to install and operation.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to aforementioned each embodiment, this utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of this utility model.
Claims (10)
1. an anastomat nail-anvil assembly, comprise the nail anvil rod that a nail anvil and an end and nail anvil are rotationally connected; Described nail anvil one end face has a nail anvil seat; Nail anvil rod has a link, this link is rotationally connected by horizontal bearing pin and a nail anvil seat, it is characterized in that, be equipped with torsion spring on described bearing pin, there is the first limiting section for torsion spring one end of conflicting on described nail anvil seat, described link has the second limiting section for the torsion spring other end of conflicting, and is arranged with one on described link and nail anvil seat for limiting nail anvil rod and nail anvil elastomeric sleeve in relative rotation; Nail anvil seat bottom have one for after elastomeric sleeve generation strain with the retaining face of the inwall interference fit of elastomeric sleeve.
2. anastomat nail-anvil assembly according to claim 1, it is characterized in that, the nail anvil seat comprises a column pedestal and the connecting plate of two relative vertically-arrangeds on this column pedestal, column base bottom and nail anvil are fixed, column pedestal top forms the lower limit step, the all sides of column pedestal are the retaining face, the inwall interference fit of retaining face and elastomeric sleeve; Described link comprises the two vertically-arranged plates that relatively arrange, and this vertically-arranged plate outside has the upper limit step, and elastomeric sleeve is defined between this upper limit step and lower limit step.
3. anastomat nail-anvil assembly according to claim 2, is characterized in that, on connecting plate and vertically-arranged plate, is equipped with for wearing the perforating of bearing pin, and the upper limit step is positioned at the perforating below be located on the vertically-arranged plate.
4. anastomat nail-anvil assembly according to claim 2, is characterized in that, described lower limit step is taper, and increase gradually from nearly nail anvil rod end to nail anvil rod end size far away.
5. according to the arbitrary described anastomat nail-anvil assembly of claim 1-4, it is characterized in that, described the first limiting section and the second limiting section are spacing hole, and described spacing hole is located on the nail anvil seat or, on link, insert in this spacing hole described torsion spring end.
6. according to the arbitrary described anastomat nail-anvil assembly of claim 1-4, it is characterized in that, described the first limiting section and the second limiting section are confined planes, and described confined planes is located on the nail anvil seat or, on link, conflict on this confined planes in described torsion spring end.
7. anastomat nail-anvil assembly according to claim 5, is characterized in that, described spacing hole is arranged on the column base between two connecting plates, and this spacing hole inwall forms the first limiting section.
8. anastomat nail-anvil assembly according to claim 6, is characterized in that, the link of described nail anvil rod is sleeve-shaped, and described nail anvil rod inwall forms the second limiting section.
9. according to claim 1,2,3,4,7 or 8 described anastomat nail-anvil assemblies, it is characterized in that, described elastomeric sleeve has a stress surface with the end that described upper limit step contacts, all sides of protruding this elastomeric sleeve in described stress surface edge.
10. an anastomat, this anastomat comprises nail-anvil assembly, nail kit assembly, percussion lock and device body for pulling the trigger staple in the nail kit assembly, described nail kit assembly and percussion lock are arranged on it described device, described nail-anvil assembly removably is connected with described percussion lock, it is characterized in that, described nail-anvil assembly is the arbitrary described anastomat nail-anvil assembly of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203088886U CN203328752U (en) | 2013-05-30 | 2013-05-30 | Anastomat anvil assembly and anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203088886U CN203328752U (en) | 2013-05-30 | 2013-05-30 | Anastomat anvil assembly and anastomat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203328752U true CN203328752U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203088886U Expired - Lifetime CN203328752U (en) | 2013-05-30 | 2013-05-30 | Anastomat anvil assembly and anastomat |
Country Status (1)
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|---|---|
| CN (1) | CN203328752U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207815A (en) * | 2013-05-30 | 2014-12-17 | 瑞奇外科器械(中国)有限公司 | Stapler nail anvil assembly and stapler |
| CN104382625A (en) * | 2014-10-22 | 2015-03-04 | 重庆康美唯外科器械有限公司 | Nail anvil |
| CN105581818A (en) * | 2014-10-24 | 2016-05-18 | 瑞奇外科器械(中国)有限公司 | Nail anvil assembly for surgical operating instrument and surgical operating instrument |
-
2013
- 2013-05-30 CN CN2013203088886U patent/CN203328752U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207815A (en) * | 2013-05-30 | 2014-12-17 | 瑞奇外科器械(中国)有限公司 | Stapler nail anvil assembly and stapler |
| CN104382625A (en) * | 2014-10-22 | 2015-03-04 | 重庆康美唯外科器械有限公司 | Nail anvil |
| CN105581818A (en) * | 2014-10-24 | 2016-05-18 | 瑞奇外科器械(中国)有限公司 | Nail anvil assembly for surgical operating instrument and surgical operating instrument |
| 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 |
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