CN104207815B - Stapler nail anvil assembly and stapler - Google Patents
Stapler nail anvil assembly and stapler Download PDFInfo
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- CN104207815B CN104207815B CN201310211803.7A CN201310211803A CN104207815B CN 104207815 B CN104207815 B CN 104207815B CN 201310211803 A CN201310211803 A CN 201310211803A CN 104207815 B CN104207815 B CN 104207815B
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Abstract
The invention provides a stapler nail anvil assembly and a stapler. The nail anvil assembly comprises a nail anvil and a nail anvil rod connected with the nail anvil in a rotatable mode; a nail anvil base is arranged on the nail anvil; the nail anvil rod is provided with a connecting end, the connecting end is connected with the nail anvil base in a rotatable mode through a transversely-arranged hinge pin, a torsional spring is arranged on the hinge pin in a penetrated mode, the nail anvil base is provided with a first limiting part in contact with one end of the torsional spring in an abutting-against mode, the connecting end is provided with a second limiting part in contact with the other end of the torsional spring in an abutting-against mode, and the connecting end and the nail anvil base are sleeved with an elastic sliding sleeve for limiting relative rotation between the nail anvil rod and the nail anvil. The bottom of the nail anvil base is provided with a retreating stopping face in interference fit with the inner wall of the elastic sliding sleeve. By means of the stapler nail anvil assembly and the stapler, switching between the overturning state and the upright state is achieved through the elastic sliding sleeve arranged outside the connecting end and the nail anvil base in a sleeved mode, stress points at the two ends of the torsional spring are single and stable, the stapler nail anvil assembly and the stapler are easily installed, internal installation pieces are reduced, and the stapler nail anvil assembly and the stapler have the advantages of being simple in structure and easy to install and operate.
Description
Technical field
The present invention relates to surgical operation medical device technology, more particularly, to a kind of stapler nail-anvil assembly and stapler.
Background technology
The first stapler is used for a gastrointestinal anastomosis nearly century, until tube type anastomat in 1978 is just extensively used in the world
In gastrointestinal procedures, stapler is also stapler.It is generally divided into disposable or nonexpondable stapler, it is medically to make
Substitute the equipment of traditional-handwork suture, due to the development of modern science and technology and the improvement of manufacturing technology, clinically use at present
Stapler reliable in quality, easy to use, tight, elastic suitable, especially its suture is quick, easy and simple to handle and seldom has secondary work
With and the advantages of postoperative complication, sometimes also make the tumor operation that cannot excise in the past be able to lesion resection, be subject to very much both at home and abroad
The favor of Clinical Surgery doctor and high praise.
The performance difference of stapler plays vital effect to whole surgical effect, and current stapler adopts axle mostly
Inwardly bookbinding form, mainly includes nail-anvil assembly, nail kit assembly, the percussion lock of staple being used in percussion nail cartridge component and device
Body, nail kit assembly and percussion lock are arranged on device, and nail-anvil assembly is detachably connected with percussion lock, provide a kind of here
Conventional attachment structure, referring to Fig. 1-3, nail anvil rod bottom is in fusiform, has a draw-in groove above fusiform portion, and this fusiform portion passes through device
The hole clipping of the internal percussion lock of body, this hole clipping can occur elastic dilatation to become by an elastomeric element when fusiform portion snaps in it
Shape, treats that coordinating rear bayonet to pass through this elastomeric element with it in draw-in groove insertion hole clipping can occur elastic shrinkage deformation so that nail anvil rod
Link together with percussion lock；Staple is installed in nail kit assembly, percussion lock is used for the staple in percussion nail cartridge component, makes
It completes to suture with nail-anvil assembly cooperation, first two sections of tissue ends to be connected is placed in nail-anvil assembly and nail during bookbinding
Between cartridge component, by the percussion of percussion lock, the staple of nail kit assembly annular arrangement is deformed with nail-anvil assembly cooperation,
Will be stapled together for two sections of tissues, organization internal formed one closure binder ring, but, due to bookbinding after nail-anvil assembly and
Nail kit assembly is located at the both sides of binder ring respectively, has to pass through binder ring when taking out nail-anvil assembly, but, the maximum of nail-anvil assembly
With diameter greater than the internal diameter of binder ring, thus take out after surgery nail-anvil assembly must binder ring be touched, or even binder ring can be destroyed
Shape, this phenomenon is unfavorable for the reply of postoperative body tissue, is easily caused postoperative complication, large side effects, reduces operation
Effect.
For case above, prior art employs the nail-anvil assembly of turning structure, and that is, nail anvil can turn over relative to nail anvil rod
Turn, reduced to the annular destructiveness of bookbinding by the upset of nail anvil during taking out, and reach surgical effect, existing skill
Art is as follows：
Prior art one
As Figure 1-3, stapler nail-anvil assembly includes rotating the nail anvil 6 connecting and nail anvil rod 8, nail anvil 6 has and props up
Support plate 2 and nail anvil seat 4, nail anvil rod 8 is passed through bearing pin 5 and is connected with nail anvil seat 4 rotation, is provided with bullet between nail anvil seat 4 and support plate 2
Spring 7, the state shown in Fig. 2 is reset condition, and spring 7 is in compressive state, the step surface on nail anvil seat 4 bottom and nail anvil rod 8
Conflict makes nail anvil rod 8 keep vertical with nail anvil 6 baseplane, and to 6 one external force of nail anvil so that it is flipped up, spring 7 stores
Elastic potential energy release, nail anvil 6 rotates relative to nail anvil rod 8, and is held turned over state, as shown in figure 3, spring in the technical program
7 end positions unstable it is difficult to install, and spring end is more with the strong point of support plate, easily cause unbalance stress so that
Disabler.
Prior art two
As Figure 4-Figure 6, nail anvil 6 and the upset structure of nail anvil rod 8 are made up of spring 7, protruding shaft 154 and locking plate 126, nail
There is inside anvil bar 8 step, spring 7 is arranged in protruding shaft 154 bottom, and the step being held within nail anvil rod 8 is pushed up with protruding shaft 154
Between the boss 167 in portion, nail anvil rod 8 and locking plate 126 pass through bearing pin 5 and rotate to be connected, curved surface 126c be located on boss 167
Projection 166 is conflicted, and under original state, support plate 2, in initial position, supports the cooperation position 152b of nail anvil rod 8, keeps vertical shape
State；Under the promotion of external force, support plate 2 is pushed down, and the support at cooperation position 152b is broken, and the protruding shaft 154 in nail anvil rod 8 exists
Discharge potential energy in the presence of spring 7, promote nail anvil rod 8 to rotate around bearing pin 5, realize turn over function.Have more in the technical program
Part be full of in the space of nail anvil and nail anvil rod so that volume reduces, enforcement difficulty is larger.
Content of the invention
The present invention provides a kind of stapler nail-anvil assembly and stapler, is used for overcoming defect of the prior art, structure letter
Singly, it is easily installed and be easy to operate.
The stapler nail-anvil assembly that the present invention provides, rotates, with nail anvil, the nail anvil rod being connected including a nail anvil and one end；Institute
State nail anvil end face and there is nail anvil seat；Nail anvil rod has a connection end, and this connection end is turned by a horizontal bearing pin and nail anvil seat
It is dynamically connected it is characterised in that torsion spring is equipped with described bearing pin, described nail anvil seat has first for one end of conflicting
Limiting section, described connection end has the second limiting section for the torsion spring other end of conflicting, sheathed on described connection end and nail anvil seat
Have one for limiting the elastomeric sleeve that nail anvil rod is relatively rotated with nail anvil；Nail anvil seat bottom has one for occurring in elastomeric sleeve
Retaining face with its inwall interference fit after elastic deformation.
Particularly, nail anvil seat includes a column pedestal and two relative connecting plates on this column pedestal for the vertically-arranged, column
Base bottom is fixed with nail anvil, and column Chuck top forms lower limit step, moves back face till column pedestal week side, retaining face with
The inwall interference fit of elastomeric sleeve；Described connection end includes the two vertically-arranged plates being oppositely arranged, and has the upper limit outside this vertically-arranged plate
Position step, elastomeric sleeve is defined between this upper limit step and lower limit step.
Wherein, connecting plate and vertically-arranged plate are equipped with the perforating for wearing bearing pin, upper limit step be located at be located at vertical
Put below the perforating on plate.
Wherein, described lower limit step is tapered, and is gradually increased from nearly nail anvil rod end to remote nail anvil rod end size.
Further, described first limiting section and the second limiting section are spacing hole, and described spacing hole is located on nail anvil seat
Or on connection end, described torsion spring end inserts in this spacing hole.
Further, described first limiting section and the second limiting section are confined planes, and described confined planes are located on nail anvil seat
Or on connection end, described torsion spring end is conflicted on this confined planes.
Particularly, described spacing hole is arranged on the column base between two connecting plates, and this spacing hole inwall forms first
Limiting section.
Particularly, the connection end of described nail anvil rod is in sleeve-shaped, and described nail anvil rod inwall forms the second limiting section.
Further, one end that described elastomeric sleeve is contacted with described upper limit step has a stress surface, described stress
All sides of face edge this elastomeric sleeve protruding.
The stapler nail-anvil assembly that the present invention provides, during installation, first elastomeric sleeve is pushed on the retaining face of nail anvil seat,
Again torsion spring is installed, and torsion spring two ends is coordinated with the first limiting section and the second limiting section respectively, group to nail anvil seat and connection end,
By bearing pin, nail anvil seat, torsion spring and connection end are coupled together, now, torsion spring is in stress and stores elastic potential energy,
Finally elastomeric sleeve is elapsed to connection end from retaining face, thus limiting the release of torsion spring elastic potential energy；During use, elasticity
Slide over the percussion effect lower stress of percussion lock, and be passed to retaining face, now, torsion spring elastic potential energy is released, and pushes away
Dynamic nail anvil overturns relative to nail anvil rod, and is maintained at rollover states, and in order to take out from binder ring, the present invention passes through the company of being set in
Connect the conversion that the elastomeric sleeve outside end and nail anvil seat realizes upset and erectility, hinge structure one, torsion spring two ends are subject to
The power strong point is single and stablizes it is easy to install, hinge structure two, it is not necessary to protruding shaft, decreases inner mount, and leads to
Cross operation and be placed in resilient sleeve nail anvil rod outside and control nail anvil whether relatively nail anvil rod upset, have structure simply, be easy to peace
Dress and the advantage of operation.
The present invention also provides a kind of stapler, and this stapler includes nail-anvil assembly, nail kit assembly, is used for percussion nail cartridge component
The percussion lock of interior staple and device body, described nail kit assembly and described percussion lock are arranged on described device, described nail anvil group
Part is detachably connectable to described percussion lock, and described nail-anvil assembly is above-mentioned stapler nail-anvil assembly.
The stapler that the present invention provides, by the change of nail-anvil assembly structure, simplifies the overall structure of stapler, and easily
In installation and operation.
Brief description
Fig. 1 is the stereogram of prior art one；
Fig. 2 is the use state reference view one of prior art one；
Fig. 3 is the use state reference view two of prior art one；
Fig. 4 is the perspective exploded view of prior art two；
Fig. 5 is the use state reference view one of prior art two；
Fig. 6 is the use state reference view two of prior art two；
Fig. 7 is the perspective exploded view of stapler nail-anvil assembly provided in an embodiment of the present invention；
Fig. 8 is the use state reference view one of stapler nail-anvil assembly provided in an embodiment of the present invention；
Fig. 9 is the use state reference view two of stapler nail-anvil assembly provided in an embodiment of the present invention；
Figure 10 is the partial sectional view of stapler nail-anvil assembly provided in an embodiment of the present invention；
Figure 11 is the stereogram of stapler provided in an embodiment of the present invention.
Specific embodiment
Embodiment one
As illustrated in figures 7-11, the embodiment of the present invention provides a kind of stapler nail-anvil assembly, including a nail anvil 6 and one end and nail
Anvil 6 rotates the nail anvil rod 8 connecting；Nail anvil 6 end face has a nail anvil seat 4；Nail anvil rod 8 has a connection end 81, this connection end
81 pass through a horizontal bearing pin 5 is connected with nail anvil seat 4 rotation, bearing pin 5 is equipped with torsion spring 9, nail anvil seat 4 has for conflicting
First limiting section 10 of torsion spring 9 one end, connection end 81 has the second limiting section 20 for torsion spring 9 other end of conflicting, connection end
81 and nail anvil seat 4 on be arranged with one for limiting the elastomeric sleeve 11 that nail anvil rod 8 is relatively rotated with nail anvil 6；Nail anvil seat 4 bottom has
Have one for the retaining face 12 with its inwall interference fit after elastomeric sleeve 11 occurs elastic deformation.
Elastomeric sleeve 11 during installation, is pushed into the retaining face of nail anvil seat 4 by stapler nail-anvil assembly that the present invention provides first
On 12, then torsion spring 9 is installed, and torsion spring 9 two ends are coordinated with the first limiting section 10 and the second limiting section 20 respectively, group is to nail anvil
Nail anvil seat 4, torsion spring 9 and connection end 81 are coupled together, now, nail anvil 6 is in original shape by seat 4 and connection end 81 by bearing pin 5
State, vertical with nail anvil rod 8, as shown in figure 8, torsion spring 9 is in stress and stores elastic potential energy, finally by elastomeric sleeve 11
Elapse to connection end 81 from retaining face 12, thus limiting the release of torsion spring 9 elastic potential energy；During use, elastomeric sleeve 11 exists
The percussion effect lower stress of percussion lock, and be passed to retaining face 12, now, torsion spring 9 elastic potential energy is released, and promotes nail
Anvil 6 nail anvil rod 8 relatively overturns, as shown in figure 9, and being maintained at rollover states, in order to take out from binder ring, in the present invention
Realized by the elastomeric sleeve being set in outside connection end and nail anvil seat, hinge structure one, the torsion spring two ends stress strong point
It is single and stable that it is easy to install, hinge structure two, it is not necessary to protruding shaft, decreases the part being arranged within nail anvil rod, and
And whether the resilient sleeve being placed in by operation outside nail anvil rod controls nail anvil relative to nail anvil rod upset, has structure simple, easily
In the advantage installed and operate.In the present embodiment, nail anvil 6 is in lid, and nail anvil 6 outer wall is curved, is easy to penetrate stomach, in nail anvil 6
Wall is fixedly connected with nail anvil seat, and nail anvil seat is rotated with nail anvil rod and is connected.
Further improve as above-described embodiment, nail anvil seat 4 includes a column pedestal 41 vertically-arranged relative with two at this
Connecting plate 42 on column pedestal 41, column base bottom is fixing with support plate 2, and top forms lower limit step 43, all sides
For retaining face 12, retaining face 12 and elastomeric sleeve 11 inwall interference fit；Connection end 81 includes the two vertically-arranged plates 82 being oppositely arranged,
There is outside this vertically-arranged plate upper limit step 83, elastomeric sleeve 11 be defined in this upper limit step 83 and lower limit step 43 it
Between.
Upper limit step and lower limit step define the axial location of elastomeric sleeve, increased the stability of nail-anvil assembly
And reliability.In elastomeric sleeve 11, wall energy and retaining face 12 coordinate under external force.It is all provided with connecting plate 42 and vertically-arranged plate 82
There is the perforating 50 for wearing bearing pin 5, in the present embodiment, upper limit step 83 is located at the perforating 50 being located on vertically-arranged plate 82
Lower section, if perforating 50 is stretched out at bearing pin 5 two ends, so that elastomeric sleeve 11 avoids bearing pin 5 two ends in original state,
Avoid rubbing.
As the preferred embodiment of above-described embodiment, as shown in Figure 10, for the ease of elastomeric sleeve can smoothly by
Elapse on retaining face, lower limit step 43 is tapered, and be gradually increased to remote nail anvil rod end size from nearly nail anvil rod end, Figure 10
It show size from top to bottom to be gradually increased, in the case that elastomeric sleeve is not subject to external force, lower limit step has spacing work
With；When the percussion that elastomeric sleeve is subject to percussion lock acts on, lower limit step also has transition guide effect.Here upper finger
The one end being proximate to vertically-arranged plate 82, under refer to away from vertically-arranged plate 82 one end.
In above-described embodiment, the first limiting section 10 or the second limiting section 20 can be spacing hole or confined planes, tool
Body can have spacing hole on nail anvil seat or connection end, and torsion spring end inserts in this spacing hole.Nail anvil seat or connection end have
Limited plane, torsion spring end is conflicted on this confined planes.
In the present embodiment, as shown in Figure 10, the connection end of nail anvil rod is in sleeve-shaped, and 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 firing elastomeric sleeve, one end that elastomeric sleeve 11 is contacted with upper limit step has stress surface 110.When
During percussion lock percussion, this stress surface is subject to active force, the week of preferably described stress surface edge this elastomeric sleeve protruding
Side, improves force stability it is ensured that uniform force, it is to avoid hits partially, overturns failure.
As shown in figure 11, the embodiment of the present invention also provides a kind of stapler, and this stapler includes nail-anvil assembly A1, nail kit group
Part A2, percussion lock A3 and device body A4 for staple in percussion nail cartridge component, nail kit assembly A2 and percussion lock A3 is arranged on
On device body A4, percussion lock A3 is used for the staple in percussion nail cartridge component A2, makes staple complete to suture with nail-anvil assembly A1 cooperation,
Nail-anvil assembly A1 is the stapler nail-anvil assembly of above-mentioned any embodiment, and nail-anvil assembly A1 is removably connected with percussion lock A3
Connect, the attachment structure of nail-anvil assembly A1 and percussion lock A3 can be found in the concrete of nail-anvil assembly and percussion lock in existing stapler
Attachment structure, the stapler that the present invention provides, by the change of nail-anvil assembly structure, simplify the overall structure of stapler, and
It is easily installed and operate.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of stapler nail-anvil assembly, rotates, with nail anvil, the nail anvil rod being connected including a nail anvil and one end；Described nail anvil one end
Face has a nail anvil seat；Nail anvil rod has a connection end, and this connection end is passed through a horizontal bearing pin and is connected with the rotation of nail anvil seat, its
It is characterised by, described bearing pin is equipped with torsion spring, described nail anvil seat has the first limiting section for one end of conflicting, institute
State connection end and there is the second limiting section for the torsion spring other end of conflicting, described connection end and nail anvil seat are arranged with one and are used for limiting
The elastomeric sleeve that nail anvil rod processed and nail anvil relatively rotate；Nail anvil seat bottom has one for after elastomeric sleeve occurs elastic deformation
Retaining face with the inwall interference fit of elastomeric sleeve；
Described nail anvil seat includes a column pedestal and two relative connecting plates on this column pedestal for the vertically-arranged, column base bottom
Fix with nail anvil, column Chuck top forms lower limit step, column pedestal moves back face, retaining face and elastomeric sleeve till all sides
Inwall interference fit；Described connection end includes the two vertically-arranged plates being oppositely arranged, and has upper limit step, bullet outside this vertically-arranged plate
Property sliding sleeve is defined between this upper limit step and lower limit step.
2. stapler nail-anvil assembly according to claim 1 it is characterised in that be equipped with connecting plate and vertically-arranged plate for
Wear the perforating of bearing pin, upper limit step is located at below the perforating being located on vertically-arranged plate.
3. stapler nail-anvil assembly according to claim 1 is it is characterised in that described lower limit step is tapered, and from
Nearly nail anvil rod end is gradually increased to remote nail anvil rod end size.
4. according to the arbitrary described stapler nail-anvil assembly of claim 1-3 it is characterised in that described first limiting section and second
Limiting section is spacing hole, and described spacing hole is located on nail anvil seat or on connection end, and described torsion spring end inserts in this spacing hole.
5. according to the arbitrary described stapler nail-anvil assembly of claim 1-3 it is characterised in that described first limiting section and second
Limiting section is confined planes, and described confined planes are located on nail anvil seat or on connection end, and described torsion spring end is conflicted in this confined planes
On.
6. stapler nail-anvil assembly according to claim 4 it is characterised in that described spacing hole be arranged on two connecting plates it
Between column pedestal on, this spacing hole inwall formed the first limiting section.
7. stapler nail-anvil assembly according to claim 5 is it is characterised in that the connection end of described nail anvil rod is in sleeve
Shape, described nail anvil rod inwall forms the second limiting section.
8. the stapler nail-anvil assembly according to claim 1,2,3,6 or 7 is it is characterised in that described elastomeric sleeve and institute
The one end stating the contact of upper limit step has a stress surface, all sides of described stress surface edge this elastomeric sleeve protruding.
9. a kind of stapler, this stapler includes nail-anvil assembly, nail kit assembly, the percussion dress for staple in percussion nail cartridge component
Put and device body, described nail kit assembly and percussion lock are arranged on described device, and described nail-anvil assembly is removably hit with described
Transmitting apparatus connect it is characterised in that described nail-anvil assembly is the arbitrary described stapler nail-anvil assembly of the claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211803.7A CN104207815B (en) | 2013-05-30 | 2013-05-30 | Stapler nail anvil assembly and stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211803.7A CN104207815B (en) | 2013-05-30 | 2013-05-30 | Stapler nail anvil assembly and stapler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104207815A CN104207815A (en) | 2014-12-17 |
| CN104207815B true CN104207815B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310211803.7A Active CN104207815B (en) | 2013-05-30 | 2013-05-30 | Stapler nail anvil assembly and stapler |
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| CN (1) | CN104207815B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016179737A1 (en) * | 2015-05-08 | 2016-11-17 | Covidien Lp | Anvil assembly and method of assembling components of anvil assembly |
| CN108289684B (en) * | 2015-12-07 | 2021-08-31 | 柯惠有限合伙公司 | Anvil assembly and delivery system |
| CN105640605A (en) * | 2015-12-30 | 2016-06-08 | 北京派尔特医疗科技股份有限公司 | Inclinable nail abutting seat and tube-type anastomat |
| CN107252330B (en) * | 2017-03-22 | 2019-10-22 | 许德宽 | A kind of split type execution head of straight line closed cutter |
| CN112089465B (en) * | 2019-12-09 | 2022-01-04 | 杭州市第一人民医院 | Nail anvil seat of folding tubular anastomat placed through oral cavity |
| CN111407347B (en) * | 2020-03-31 | 2021-03-19 | 杭州乐守科技有限公司 | Nail anvil seat of folding anastomat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2324407T3 (en) * | 2002-10-04 | 2009-08-06 | Tyco Healthcare Group Lp | SURGICAL STAPLING DEVICE. |
| CN101947117B (en) * | 2009-07-08 | 2012-04-25 | 北京中法派尔特医疗设备有限公司 | Side-falling nail-supporting seat components and anastomat using side-falling nail seat components |
| CN201782789U (en) * | 2010-03-08 | 2011-04-06 | 北京中法派尔特医疗设备有限公司 | Nail holder component capable of realizing tilting and resetting and anastomat adopting same |
| US8708212B2 (en) * | 2011-10-18 | 2014-04-29 | Covidien Lp | Tilt top anvil with torsion spring |
| CN203328752U (en) * | 2013-05-30 | 2013-12-11 | 瑞奇外科器械(中国)有限公司 | Anastomat anvil assembly and anastomat |
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2013
- 2013-05-30 CN CN201310211803.7A patent/CN104207815B/en active Active
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| CN104207815A (en) | 2014-12-17 |
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Address after: 300457, Tanggu District, Tianjin economic and Technological Development Zone, No. fourth, 5 Avenue, B District, 4 floor Patentee after: Tianjin Ricky surgical instruments Limited by Share Ltd Address before: 300457, Tanggu District, Tianjin economic and Technological Development Zone, No. fourth, 5 Avenue, B District, 4 floor Patentee before: Reach Surgical Instrument (China) Co.,Ltd. |