CN110216529A - A kind of bioceramic artificial joint spherical cyclic polishing machine - Google Patents
A kind of bioceramic artificial joint spherical cyclic polishing machine Download PDFInfo
- Publication number
- CN110216529A CN110216529A CN201910648686.8A CN201910648686A CN110216529A CN 110216529 A CN110216529 A CN 110216529A CN 201910648686 A CN201910648686 A CN 201910648686A CN 110216529 A CN110216529 A CN 110216529A
- Authority
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- China
- Prior art keywords
- polishing
- hole
- main body
- delivery chute
- screw rod
- 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
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 86
- 239000003462 bioceramic Substances 0.000 title claims abstract description 14
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 208000036487 Arthropathies Diseases 0.000 description 1
- 101000911772 Homo sapiens Hsc70-interacting protein Proteins 0.000 description 1
- 206010020651 Hyperkinesia Diseases 0.000 description 1
- 208000000269 Hyperkinesis Diseases 0.000 description 1
- 208000012659 Joint disease Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
- B24B31/112—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using magnetically consolidated grinding powder, moved relatively to the workpiece under the influence of pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of bioceramic artificial joint spherical cyclic polishing machines, polishing main body is provided with first through hole, conveying screw rod is fed through first through hole, the first arc-shaped delivery chute is provided in polishing main body, the two opposite side walls for polishing main body form the second delivery chute with an end cap respectively, second delivery chute top is communicated with the first delivery chute, and bottom end is communicated with first through hole；Coil is located in polishing main body, and Magnetorheologicai polishing liquid is located in the first delivery chute, the second delivery chute and first through hole.The invention has the advantages that the conveying screw rod being threaded through in first through hole plays the role of promotion, it will make to be put into polishing body therein Circulated polishing in closed circulation channel, and it polishes and then utilizes Magnetorheologicai polishing liquid, it is being for liquid form not by magnetic fields, can completely is covered on closed circulation conduit wall, switch to class solid-state form after by magnetic field, form numerous magnetorheological brushes, comprehensive polishing is carried out to the periphery of the polishing body of rotation.
Description
Technical field
The present invention relates to a kind of bioceramic artificial joint spherical cyclic polishing machines.
Background technique
Joint damage caused by arthropathy caused by human diseases or contingency destroys the normal function of human synovial
Can, very big inconvenience is brought to the life and work of patient.According to statistics, about the 10% of world population is replaced using artificial hip joint
Natural hip joint.Human hip is a kind of joint of spherical shape, comprising a spherical femoral head and one like bowl-shape acetabular bone.
Its alternative materials should have that light-high-strength, good biocompatibility, corrosion resistance be strong, fatigue caused by repeated stress is small, wear-resistant
Etc. properties.Material for joint replacement implants is mainly metal, ceramics, macromolecule and composite material.Ceramics are because having life
Object inertia, it is extremely stable in human body, hardness is high, the advantages that being hardly worn is widely used.But ceramic material has
The characteristics such as high rigidity, high intensity, brittleness is big are difficult to process；And the burr after Ceramic implants processing is more, and oxidation film is thicker,
As in medical intervention apparatus implantation human body, the surface roughness of material is higher, it is easy to lead to the formation of thrombus.Therefore, right
More stringent requirements are proposed for the surface of medical ceramic joint prosthesis bulb and micro-roughened surface.
Summary of the invention
The purpose of the present invention is to provide a kind of bioceramic artificial joint spherical cyclic polishing machine, can effectively solve the problem that existing
The problem for having bioceramic artificial joint spherical polishing precision not high.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of bioceramic is artificial
Joint spherical surface Circulated polishing machine, including polishing main body, conveying screw rod, driving device, Magnetorheologicai polishing liquid, coil and two ends
Lid, the polishing main body are provided with first through hole, and the conveying screw rod is fed through first through hole, described conveying screw rod one end and driving
Device is connected；
The first arc-shaped delivery chute is provided in the polishing main body, it is vertical to be provided in the two opposite side walls of the polishing main body
The first half slots are provided with vertical the second half slot, each fixation in the two opposite side walls of the polishing main body on two end caps
One end cap, corresponding the first half slot and the second half slots are combined into the second delivery chute, and the both ends of the first delivery chute are respectively with one
The top of a second delivery chute communicates, and the bottom end of two second delivery chutes is communicated with first through hole；
The top of the polishing main body is provided with injection hole, and the coil is located in the polishing main body of first through hole two sides, the magnetic
Rheology polishing fluid is located in the first delivery chute, the second delivery chute and first through hole；
Also second through-hole coaxial with first through hole is provided on two end caps.
Preferably, it is provided with fixing groove on the end cap of second through-hole two sides, is equipped in the fixing groove and conveying screw rod
Form the sealing block of sealing.
Preferably, polishing machine further includes rack, and the rack is equipped with the limiting device of monitoring conveying screw rod position, described
Limiting device is electrically connected to the drive.
Preferably, the polishing main body is equipped with the closed sealing plug of injection hole.
Preferably, the first through hole inner sidewall is provided with the helicla flute equal with conveying screw rod screw pitch.
Compared with prior art, the invention has the advantages that
A closed circulation channel is formed by the first delivery chute, the second delivery chute and first through hole, and is threaded through first through hole
Interior conveying screw rod plays the role of promotion, will make to be put into polishing body therein Circulated polishing in closed circulation channel, and throws
Light then utilizes Magnetorheologicai polishing liquid, is being for liquid form not by magnetic fields, can completely is covered on closed circulation conduit wall
On, class solid-state form is switched to after by magnetic field, forms numerous magnetorheological brushes, comprehensive throwing is carried out to the periphery of the polishing body of rotation
Light.
Other second delivery chute has two sections, is made of two end caps and polishing main body, such setting can reduce closure
The difficulty of processing of circulation canal, while being conducive to the maintenance of polishing machine.
It is provided with fixing groove on the end cap of second through-hole two sides, is equipped in the fixing groove and forms sealing with conveying screw rod
Sealing block.By sealing block, prevent Magnetorheologicai polishing liquid from flowing out along conveying screw rod.
Polishing machine further includes rack, and the rack is equipped with the limiting device of monitoring conveying screw rod position, the limit dress
It sets and is electrically connected to the drive.Limiting device, which prevents conveying screw rod to be axially moveable, excessively causes conveying screw rod and polishing main body de-
From.
The polishing main body is equipped with the closed sealing plug of injection hole.Prevent having polished part or magnetic during the polishing process
Rheology polishing fluid flies out from injection hole.
The first through hole inner sidewall is provided with the helicla flute equal with conveying screw rod screw pitch.The slot of helicla flute and conveying screw rod
The groove profile for accommodating polished part is cooperatively formed, allows polished part also to can be carried out polishing on conveying screw rod, while also reducing conveying spiral shell
Clearance distance between bar and first through hole advantageously reduces the dosage of Magnetorheologicai polishing liquid.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of bioceramic artificial joint spherical cyclic polishing machine of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It is refering to fig. 1 a kind of embodiment of bioceramic artificial joint spherical cyclic polishing machine of the present invention, a kind of biology pottery
Porcelain joint prosthesis spherical cyclic polishing machine, including polishing main body 7, conveying screw rod 3, driving device 5, Magnetorheologicai polishing liquid 4, coil
74 and two end caps 1, the polishing main body 7 be provided with first through hole, the conveying screw rod 3 is fed through first through hole, the conveying
3 one end of screw rod is connected with driving device 5, is provided with spiral shape delivery chute 31 on the outer circumference surface of the conveying screw rod 3, spiral shape is defeated
Send 31 cross section of slot for semicircle；
It is provided with the first arc-shaped delivery chute 71 in the polishing main body 7, is provided in the two opposite side walls of the polishing main body 7 perpendicular
Straight the first half slot 72 is provided with vertical the second half slot 11, the two opposite sides of the polishing main body 7 on two end caps 1
Each on wall to fix an end cap 1, corresponding the first half slot 72 and the second half slots 11 are combined into the second delivery chute, the first delivery chute
71 both ends are communicated with the top of second delivery chute respectively, the bottom end of two second delivery chutes with first through hole phase
It is logical；
The top of the polishing main body 7 is provided with injection hole 75, and the coil 74 is located in the polishing main body 7 of first through hole two sides,
The Magnetorheologicai polishing liquid 4 is located in the first delivery chute 71, the second delivery chute and first through hole；
Second through-hole coaxial with first through hole is also provided on two end caps 1.
Closed circulation channel is formed by the first delivery chute 71, the second delivery chute and first through hole, and it is logical to be threaded through first
Conveying screw rod 3 in hole plays the role of promotion, will make to be put into polishing body therein Circulated polishing in closed circulation channel, and
Polishing then utilizes Magnetorheologicai polishing liquid 4, is being for liquid form not by magnetic fields, can completely is covered on closed circulation channel
Switch to class solid-state form on wall, after by magnetic field, form numerous magnetorheological brushes, the periphery of the polishing body of rotation is carried out comprehensive
Polishing.In general the first delivery chute 71 and the second delivery chute are the circular slot in cross section, and circular size is than polished part 100
Diameter it is bigger, the gap between such polished part 100 and the first delivery chute 71 or the second delivery chute can accommodate a certain amount of
Magnetorheologicai polishing liquid 4.It is of course also possible to the helicla flute 73 equal with 3 screw pitch of conveying screw rod is provided in first through hole inner sidewall,
It is circular slot that helicla flute 73 and conveying screw rod 3 in this way in first through hole, which also form and accommodate the cross section of polished part 100, is reduced
Gap between conveying screw rod 3 and first through hole advantageously reduces the dosage of Magnetorheologicai polishing liquid 4.
Other second delivery chute has two sections, is made of two end caps 1 and polishing main body 7, and such setting, which can reduce, closes
The difficulty of processing of circulation canal is closed, while being conducive to the maintenance of polishing machine.
In order to keep the leakproofness of polishing machine, prevent Magnetorheologicai polishing liquid 4 from leaking, the end cap 1 of second through-hole two sides
On be provided with fixing groove, the sealing block 2 that sealing is formed with conveying screw rod 3 is equipped in the fixing groove, sealing block 2 can use rubber
Or other materials with sealing effect are made, and can have screw thread outstanding and conveying on the face opposite with conveying screw rod 3
The thread groove of screw rod 3 cooperates.In addition it can install sealing plug 76 additional for injection hole 75, polished part 100 or magnetorheological throwing are prevented
Light liquid 4 flies out from injection hole 75.
And hyperkinesia, prevention conveying screw rod 3 and polishing main body 7 are detached from conveying screw rod 3 in the axial direction in order to prevent, are thrown
Ray machine further includes rack, and the rack is equipped with the limiting device 6 of monitoring 3 position of conveying screw rod, and limiting device can be photoelectricity
Detector or touch sensor, the limiting device 6 are electrically connected with driving device 5, once detect that conveying screw rod 3 is transported
Moving limit, just the power-off of control driving device 5 or inverted running, driving device 5 generally use motor.
When work, it is put into liquid Magnetorheologicai polishing liquid 4 and polished part 100 from input hole, coil 74 is powered, magnetic field is generated,
Liquid Magnetorheologicai polishing liquid 4 is transformed into the magnetorheological brush of class solid-state under magnetic fields, starts driving device 5, and conveying screw rod 3 revolves
Turn, polishing body forms Circulated polishing in closed circulation channel in the first delivery chute 71, the second delivery chute and first through hole, works as conveying
Screw rod 3 encounters the limiting device 6 of left and right ends setting, can change the positive and negative rotation of driving device 5, and polished part 100 is thrown in transport
Backscrolling is run in optical cavity, is polished polished part 100 to reach design requirement repeatedly.
Above is only a specific embodiment of the present invention, but technical characteristic of the invention is not limited thereto, Ren Heben
Within the field of the present invention, made changes or modifications all cover within the scope of the patent of the present invention the technical staff in field.
Claims (5)
1. a kind of bioceramic artificial joint spherical cyclic polishing machine, it is characterised in that: including polishing main body (7), conveying screw rod
(3), driving device (5), Magnetorheologicai polishing liquid (4), coil (74) and two end caps (1), the polishing main body (7) are provided with first
Through-hole, the conveying screw rod (3) are fed through first through hole, and described conveying screw rod (3) one end is connected with driving device (5)；
Arc-shaped the first delivery chute (71) is provided in polishing main body (7), in the two opposite side walls of polishing main body (7)
It is provided with vertical the first half slot (72), vertical the second half slot (11), the polishing main body are provided on two end caps (1)
(7) each in two opposite side walls to fix an end cap (1), corresponding the first half slot (72) and the second half slots (11) are combined into
The both ends of two delivery chutes, the first delivery chute (71) are communicated with the top of second delivery chute respectively, two second conveyings
The bottom end of slot is communicated with first through hole；
The top of polishing main body (7) is provided with injection hole (75), and the coil (74) is located at the polishing master of first through hole two sides
In body (7), the Magnetorheologicai polishing liquid (4) is located in the first delivery chute (71), the second delivery chute and first through hole；
Second through-hole coaxial with first through hole is also provided on two end caps (1).
2. a kind of bioceramic artificial joint spherical cyclic polishing machine as described in claim 1, it is characterised in that: described second
It is provided with fixing groove on the end cap (1) of through-hole two sides, the sealing block for forming sealing with conveying screw rod (3) is equipped in the fixing groove
(2).
3. a kind of bioceramic artificial joint spherical cyclic polishing machine as described in claim 1, it is characterised in that: polishing machine is also
Including rack, the rack is equipped with the limiting device (6) of monitoring conveying screw rod (3) position, the limiting device (6) and driving
Device (5) electrical connection.
4. a kind of bioceramic artificial joint spherical cyclic polishing machine as described in claim 1, it is characterised in that: the polishing
Main body (7) is equipped with injection hole (75) closed sealing plug (76).
5. a kind of bioceramic artificial joint spherical cyclic polishing machine as described in claim 1, it is characterised in that: described first
Inner side wall of through hole is provided with the helicla flute equal with conveying screw rod (3) screw pitch (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648686.8A CN110216529B (en) | 2019-07-18 | 2019-07-18 | Biological ceramic artificial joint spherical surface circulating polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648686.8A CN110216529B (en) | 2019-07-18 | 2019-07-18 | Biological ceramic artificial joint spherical surface circulating polishing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110216529A true CN110216529A (en) | 2019-09-10 |
| CN110216529B CN110216529B (en) | 2021-01-26 |
Family
ID=67813501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910648686.8A Active CN110216529B (en) | 2019-07-18 | 2019-07-18 | Biological ceramic artificial joint spherical surface circulating polishing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN110216529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175345A (en) * | 2023-02-10 | 2023-05-30 | 扬州江峰机械制造有限公司 | Valve push rod cleaning sander |
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| EP0572850A1 (en) * | 1992-06-05 | 1993-12-08 | Bühler Ag | Device for post-treatment of pellets |
| US7390241B2 (en) * | 2002-06-20 | 2008-06-24 | Nsk Ltd. | Linear motion apparatus and method for manufacturing thereof |
| US20100105298A1 (en) * | 2008-10-29 | 2010-04-29 | Southern Taiwan University | Apparatus and method for spiral polishing with electromagnetic abrasive |
| US20100136887A1 (en) * | 2007-09-20 | 2010-06-03 | Southern Taiwan University | Apparatus and method for polishing via driving abrasive grains mechanically and magnetically |
| CN103567855A (en) * | 2013-10-10 | 2014-02-12 | 浙江工业大学 | Variable camber groove grinding-based high-precision ceramic ball machining equipment |
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| CN108274306A (en) * | 2017-12-24 | 2018-07-13 | 广东工业大学 | A kind of magnetorheological finishing device of high-efficiency high-accuracy Ceramic Balls |
| CN109531395A (en) * | 2018-11-16 | 2019-03-29 | 合肥易美特建材有限公司 | Grinding device is used in a kind of processing of new electro-optic ceramics |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572850A1 (en) * | 1992-06-05 | 1993-12-08 | Bühler Ag | Device for post-treatment of pellets |
| US7390241B2 (en) * | 2002-06-20 | 2008-06-24 | Nsk Ltd. | Linear motion apparatus and method for manufacturing thereof |
| US20100136887A1 (en) * | 2007-09-20 | 2010-06-03 | Southern Taiwan University | Apparatus and method for polishing via driving abrasive grains mechanically and magnetically |
| US20100105298A1 (en) * | 2008-10-29 | 2010-04-29 | Southern Taiwan University | Apparatus and method for spiral polishing with electromagnetic abrasive |
| CN103567855A (en) * | 2013-10-10 | 2014-02-12 | 浙江工业大学 | Variable camber groove grinding-based high-precision ceramic ball machining equipment |
| CN104440457A (en) * | 2014-08-29 | 2015-03-25 | 浙江工业大学 | High-precision ball machining method through spiral separation-type V-shaped groove |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175345A (en) * | 2023-02-10 | 2023-05-30 | 扬州江峰机械制造有限公司 | Valve push rod cleaning sander |
| CN116175345B (en) * | 2023-02-10 | 2023-11-21 | 扬州江峰机械制造有限公司 | Valve push rod cleaning sander |
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| Publication number | Publication date |
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| CN110216529B (en) | 2021-01-26 |
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Denomination of invention: A Circulatory Polishing Machine for Spherical Surface of Bioceramic Artificial Joint Effective date of registration: 20221205 Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2022330003493 |
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Date of cancellation: 20231205 Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2022330003493 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Bioceramic Artificial Joint Spherical Circular Polishing Machine Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2024980000673 |