CN101243998A - Multifunctional tribology experimental device - Google Patents
Multifunctional tribology experimental device Download PDFInfo
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- CN101243998A CN101243998A CN 200810032384 CN200810032384A CN101243998A CN 101243998 A CN101243998 A CN 101243998A CN 200810032384 CN200810032384 CN 200810032384 CN 200810032384 A CN200810032384 A CN 200810032384A CN 101243998 A CN101243998 A CN 101243998A
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- experiment
- pin
- hip joint
- anchor clamps
- artificial hip
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/468—Testing instruments for artificial joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention relates to a multifunctional experimental device for tribology, comprising a machine station frame and a variable speed motor, which is characterized in that: a middle cross beam is arranged on the machine station frame, and a rotary tray is pivotally inserted in the middle cross beam through a planar bearing; a downward extended rotating shaft of the rotary tray is connected with the variable speed motor through a coupling, while the tray at the upper end is connected with a lower turntable fixture of an experiment module; a loading plate is arranged in the top part of the machine station frame, a loading top compression leg is fixedly connected with the center of the loading plate, and the loading top compression leg is connected with an upper axle pin fixture of the experiment module. The experimental device has the advantages of suitability for artificial hip joint simulation and experiment and pin-disk type friction experiment, and strong compatibility, low cost and easy operation.
Description
Technical field
The present invention relates to machinery and material friction and learn research field, for the evaluation of new material friction, polishing machine provides test evaluation platform reliable and that have multiple function.More properly, the present invention can be at the artificial limb, and promptly artificial hip joint carries out the fretting wear evaluation, can provide platform for general pin dish-type tribology experiments simultaneously.
Background technology
At present, artificial joint is widely used in arthritic treatment of late stage, wound disables and the osteoma resection operation in, and become a kind of surgical operation of routine.The displacement of artificial joint includes the displacement in joints such as hip, knee joint, shoulder, elbow, wrist, and wherein hip joint and knee joint are the main stressed and abrading sections of human body, and the spoilage height is so operation is mainly based on it.In China, nearly 3,000 ten thousand people need carry out artificial joint replacement, have only 30,000 covers at present, and wherein imported product accounts for 1/4 of market, and estimate that state-owned 100-150 ten thousand osteoarthritis patients need implement prosthetic replacement's operation in every year, a year growth is about more than 25%.Along with the development of medical science, the demand of artificial joint can be increasing.
In the artificial joint practical application, the fretting wear in joint is one of subject matter, the wearing and tearing of self in being on active service comprising artificial joint, and the abrasive particle after the friction pair material wearing and tearing causes periarticular foreign body reaction, cause joint mobilization, finally cause artificial joint to lose efficacy.Research to artificial hip joint friction, wearing and tearing and lubricated aspect mainly is divided into research and extracorporeal simulating experiment research in the organism.Research in the organism is that artificial joint was implanted in the animal body after a period of time, by forms such as operation, dissections the abrasion condition in joint is observed, is analyzed and researched.Extracorporeal simulating experiment research mainly is as carrier, by the compound movement of simulation hip joint, the fretting wear situation of the artificial hip joint of analyzing and researching with the artificial hip joint simulated experiment machine.Because experimentation more complicated in the body, and experiment has a big risk, cost height, cycle are long, so than testing in the body, experiment in vitro is easy to observe and analyze because of its experimentation is comparatively simple, and the experiment interference factor is less, and the characteristics that cost is low have obtained promoting widely and using.And the difficult point of extracorporeal simulating experiment is that artificial hip joint and the joint in the simulation experiment in the actual use exist certain movement difference, i.e. the problem of truth reduction degree.
The target of simulated experiment machine not only is the motion morphology of real simulation natural hip joint, priorly be based on biomechanics and the exercise performance that experimental machine is studied artificial hip joint, associated materials is analyzed and researched, in addition, by close or even identical abrasive particle form in simulation experiment generation and the actual human body application process, the researchs such as foreign body reaction that on this basis synovial fluid performance, wear particle caused also have more actuality and science.
Pin dish-type tribology experiments machine is a kind of more common property experimental machine, because its structure, skimulated motion are fairly simple, be easy to friction, polishing machine are made rapid analysis, mainly by disk and be processed between the test specimen of pin shape formed relative motion and come the frictional behaviour of research material and the greasy property of synovial fluid, this export trade dish experimental machine can also be by the size of frictional force in the real-time experiments of measuring of mechanics sensor, analyze relation between stressed size and the wearing and tearing with this, be applicable to general lubricated, Friction and Wear Researches on Friction.
To sum up, in the exploitation of multifunctional tribology experimental device, DR RO can reduce following some:
A. reproduction artificial hip joint situation in actual applications that can be true and reliable, produce with practical application in similar abrasive particle, promptly the abrasive particle size that is produced in the experimental machine, shape must with reality in consistent;
B. can support the lubricated test experiments of variety classes synovial fluid, analyze the situation of abrasive particle in the different synovial fluid that more do not coexist;
C. help to analyze the mutual relation of comparison hip joint motion and abrasive particle size, quantity, for example: the simple reciprocating motion can produce less abrasive particle;
D. be applicable to the experiment of different size artificial hip joint, as: the femoral ball of diameter 22,28,32mm;
E. have stronger compatibility and improve function;
F. easy operating, loading and unloading;
G. low, the good interchangeability of cost of upkeep.
Summary of the invention
The object of the present invention is to provide a kind of multifunctional tribology experimental device, have stronger compatibility, for artificial hip joint and universal pin dish frictional experiment provide platform, cost is low, easy operating.
For achieving the above object, design of the present invention is:
Multifunctional tribology experimental device of the present invention comprises: board framework, artificial hip joint simulation experiment module, pin dish-type frictional experiment module and variable speed driver.Tray member constituted under the anchor clamps of artificial hip joint analog module were swung with femoral ball by 20 degree inclined-plane supporting bracket spares, mainly connected by the pyramid type rolling bearing, guaranteed the relative motion between support member and the pallet whereby, formed apery body hip joint and moved.Secondly,, be about to original clamping manual acetabulum and change, former anchor clamps are connected with the pin hold assembly by screw thread by the conversion of described acetabular bone anchor clamps; By inclined-plane support member and disk part conversion, then the hip joint simulated experiment machine can be changed into general-purpose type pin dish-type tester for friction between.In the pin disk module, connector connects by bearing with the pin holder, so that the friction torque transmission is measured.
According to above-mentioned inventive concept, the present invention adopts following technical proposals:
A kind of multifunctional tribology experimental device comprises board framework and variable speed driver, it is characterized in that having on the board framework middle cross beam to rotate the Rotary tray of planting by plane bearing; The rotating shaft of the downward extension of described Rotary tray connects with described variable speed driver by shaft coupling, and the pallet of upper end is connected with the lower rotary table anchor clamps of experiment module; The board frame roof has a load plate, and fixedly connected one of the center loads the roof pressure post, loads the roof pressure post and is connected with the last pivot pin anchor clamps of experiment module.
In above-mentioned multifunctional tribology experimental device, described experiment module is an artificial hip joint simulation experiment module, is made of artificial hip joint cup mortar and artificial hip joint femoral ball; The structure of described experiment module lower rotary table anchor clamps is: an inclined-plane support member is fixedlyed connected with described rotary-tray by screw, described inclined-plane supporting bracket spare is by pallet under femoral ball of two taper roll bearing plug-in mountings, connect a femoral ball top tray by screw above the pallet under this femoral ball, and a rolling brake bar is fixed in the side; Described femoral ball top tray center has blind screwed hole and artificial hip joint femoral ball to spin, and a reservoir for lubricant also is housed on the femoral ball top tray; The structure of pivot pin anchor clamps is on the described experiment module: the artificial hip joint cup mortar anchor clamps of a short cylinder shaped are fixedlyed connected with described loading roof pressure post by screw, artificial hip joint cup mortar anchor clamps lower end plant artificial hip joint cup mortar.
In above-mentioned multifunctional tribology experimental device, described experiment module is a pin dish-type frictional experiment module, is made of experiment pin and experiment plate; The structure of described experiment module lower rotary table anchor clamps is: a disk part is fixedlyed connected by screw with described rotary-tray, settles experiment plate on the disk part; The pivot pin anchor clamps are pin hold assemblies on the described experiment module, and its structure is: circumferential uniform 8 guidees on the card of a pin chuck; The upper end of guide has screw to fixedly connected with the pin chuck by screw, and the experiment pin of planting slides in the guide; The central shaft of pin chuck is connected a plane bearing and nut piece by pressing plate with screw, nut piece and a coupling sleeve spin, and coupling sleeve is pegged graft with loading roof pressure post; Pin chuck outer rim has a fixedly connected moment of torsion to transmit bar, and this moment of torsion transmits the bar outer end and connects a pick off.
The present invention compared with prior art, have following conspicuous outstanding substantive distinguishing features and remarkable advantage: experimental provision of the present invention is used for the artificial hip joint simulation experiment, the true and reliable reproduction artificial hip joint of energy situation in actual applications, also can be used for pin dish-type frictional experiment, just can realize the conversion that above-mentioned two classes are tested by lower rotary table anchor clamps and the last pivot pin anchor clamps of changing experiment module.Have stronger compatibility, for artificial hip joint and universal pin dish frictional experiment provide platform, cost is low, easy operating.
Description of drawings
Fig. 1 is the experimental provision structural representation of hip joint simulation experiment module of the present invention.
Fig. 2 is the experimental provision structural representation of general-purpose type pin dish-type frictional experiment module of the present invention.
Fig. 3 is a pin hold assembly structural representation of the present invention.
Fig. 4 is an experiment module anchor clamps conversion sketch map of the present invention.
Specific embodiments
Now describe the present invention with reference to the accompanying drawings more fully, represented a preferred embodiment of the present invention in the accompanying drawing.
A preferred embodiment of the present invention is: referring to Fig. 1, Fig. 2, originally comprise board framework, hip joint simulation experiment module, pin dish-type frictional experiment module and variable speed driver.In the present embodiment, in artificial hip joint simulation experiment module anchor clamps, pallet (9) connects with fixing by taper roll bearing (2,3) under inclined-plane supporting bracket spare (11) and the femoral ball, and assurance femoral ball pallet produces the flexing and the sideshake of similar human hip and moves.Pallet under the femoral ball (9) passes through Bolt Connection with femoral ball top tray (8), adopts the O RunddichtringO to seal between reservoir for lubricant (7) and the femoral ball top tray.Connect with the artificial femur ball by blind screwed hole at femoral ball top tray (9) center.The side of pallet under the femoral ball (9) is fixed a rolling brake bar (10) and is resisted against on the column of board framework.Rotary-tray (12) passes through thread connection with inclined-plane supporting bracket spare (11), and connects with variable speed driver (14), carries out transmission of power.In the present embodiment, comprise pin hold assembly (15) and disk part (16), drive, produce relative to circumference and rotate by variable speed electric motors, particularly (14).Referring to Fig. 5, in pin hold assembly (15), 8 guidees (17) are fixed on the pin chuck (19) by screw thread; Pin chuck (19) connects with plane bearing (18), and fixing by pressing plate (22) and screw (20), so that anti-shotpin chuck (19) endwisely slips; Plane bearing (18) upper end is fixing by pressing plate (22), and lower end and nut piece (24) are connected and fixed simultaneously; , nut piece (24) is then fixing by screw thread and coupling sleeve (21).This structure can guarantee to sell between chuck (19) and the pin hold assembly (15) and produce relative rotation, and transmits bar (26) with this by moment of torsion, and frictional force is refused to be sent to pick off (25).
Operation principle of the present invention is as follows: referring to Fig. 1, in experiment to artificial hip joint simulation experiment module, variable speed driver (14) driven rotary base (12) produces circumferentially with inclined-plane supporting bracket spare (11) and rotates, simultaneously owing to pallet (9) under inclined-plane supporting bracket spare (11) and the femoral ball passes through taper roll bearing (2,3) connect, increased between the two degree of freedom in relative rotation, thereby drive femoral ball top tray (8) and in perpendicular to the scope of rotational plane, produce the swing flexing that is similar to human hip with the artificial femur ball that is fixed thereon, and the amplitude size depends on the oblique angle size of inclined-plane support member, artificial hip joint cup mortar anchor clamps (6) connect with multi-purpose fixture (5), and be fixed on the load plate (4), experiment is mainly carried out the centering adjustment by the grooved mouth of load plate with femoral ball and cup mortar, and load plate is mainly used in applying of static load; Referring to Fig. 2, Fig. 5, in pin dish-type frictional experiment module, variable speed driver (14) driven rotary pallet (12) produces circumferentially with disk part (16) and rotates, secondly, experiment is installed on the guide (17) with pin, overall fixed is in pin hold assembly (15), sell in the hold assembly because the effect of plane bearing, make between pin chuck and the hold assembly and can produce relative rotation, its characteristics are, owing to relatively rotate, produce friction between experiment pin and the dish, frictional force through guide (17) from being passed to pin chuck (19), but owing to there is relative degree of freedom in pin chuck (19) with pin hold assembly (15), so can frictional force be refused to be sent to pick off (25) by being fixed on moment of torsion transmission bar (26) on the pin chuck.
Module converts operation principle of the present invention is as follows: referring to Fig. 1, Fig. 2, Fig. 6, owing to be main interface with the threaded connection mode substantially, conversion is comparatively simple.Be converted to example with artificial hip joint simulation experiment module anchor clamps to pin dish-type frictional experiment module anchor clamps, at first, take off load plate (4), artificial hip joint cup mortar anchor clamps (6) are dismantled by screw thread with loading roof pressure post (5), to load roof pressure post (5) external thread part connects with the internal thread hole on coupling sleeve (21) top in the pin hold assembly (15), fixing by loading roof pressure post (5) upper end clamp nut and load plate (4) afterwards, finish the conversion of pin dish-type experiment module anchor clamps upper component with this; Inclined-plane supporting bracket spare (11) connects with rotary-tray (12) by hexagon socket head cap screw, after bolt unloads, to sell dish-type experiment module anchor clamps turntable parts (16) exchanges with inclined-plane supporting bracket spare (11), connect with rotary-tray (12) by bolt equally, by the speed change adjustment of variable speed driver (14), for pin dish-type frictional experiment device is selected suitable speed of experiment, in addition, can add required lubricating fluid in reservoir for lubricant (7), test experimentizes; So far, finish of the conversion of artificial hip joint analogue experiment installation to pin dish-type frictional experiment device.
Claims (3)
1. a multifunctional tribology experimental device comprises board framework and variable speed driver (14), it is characterized in that having on the board framework middle cross beam (1) to rotate the Rotary tray (12) of planting by plane bearing (13); The rotating shaft of the downward extension of described Rotary tray (12) connects with described variable speed driver (14) by shaft coupling, and the pallet of upper end is connected with the lower rotary table anchor clamps of experiment module; The board frame roof has a load plate (4), and fixedly connected one of the center loads roof pressure post (5), loads roof pressure post (5) and is connected with the last pivot pin anchor clamps of experiment module.
2. multifunctional tribology experimental device according to claim 1 is characterized in that described experiment module is an artificial hip joint simulation experiment module, is made of artificial hip joint cup mortar and artificial hip joint femoral ball; The structure of described experiment module lower rotary table anchor clamps is: an inclined-plane support member (11) is fixedlyed connected with described rotary-tray (12) by screw, described inclined-plane supporting bracket spare (11) is by pallet (9) under femoral ball of two taper roll bearings (2,3) plug-in mounting, connect a femoral ball top tray (8) by screw above the pallet under this femoral ball (9), and a rolling brake bar (10) is fixed in the side; Described femoral ball top tray (8) center has blind screwed hole and artificial hip joint femoral ball to spin, and a reservoir for lubricant (7) also is housed on femoral ball top tray (8); The structure of pivot pin anchor clamps is on the described experiment module: the artificial hip joint cup mortar anchor clamps (6) of a short cylinder shaped are fixedlyed connected with described loading roof pressure post (5) by screw, artificial hip joint cup mortar anchor clamps (6) lower end plant artificial hip joint cup mortar.
3. multifunctional tribology experimental device according to claim 1 is characterized in that described experiment module is a pin dish-type tribology experiments module, is made of experiment pin and experiment plate; The structure of described experiment module lower rotary table anchor clamps is: a disk part (16) is fixedlyed connected by screw with described rotary-tray, and disk part (16) is gone up and settled experiment plate; The pivot pin anchor clamps are pin hold assemblies (15) on the described experiment module, and its structure is: circumferential uniform 8 guidees (17) on the card of a pin chuck (19); The upper end of guide (17) has screw to fixedly connected with pin chuck (19) by screw, and the experiment pin of planting slides in the guide (17); The central shaft of pin chuck (19) is connected a plane bearing (18) and nut piece (24) by pressing plate (22) with screw (20), nut piece (24) spins with a coupling sleeve (21), and coupling sleeve (21) is pegged graft with loading roof pressure post (5); Pin chuck (19) outer rim has a fixedly connected moment of torsion to transmit bar (26), and this moment of torsion transmits bar (26) outer end and connects a pick off (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810032384 CN101243998B (en) | 2008-01-08 | 2008-01-08 | Multifunctional tribology experimental device |
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| CN 200810032384 CN101243998B (en) | 2008-01-08 | 2008-01-08 | Multifunctional tribology experimental device |
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| CN101243998A true CN101243998A (en) | 2008-08-20 |
| CN101243998B CN101243998B (en) | 2010-08-11 |
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| CN 200810032384 Expired - Fee Related CN101243998B (en) | 2008-01-08 | 2008-01-08 | Multifunctional tribology experimental device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871778A (en) * | 2012-09-29 | 2013-01-16 | 上海大学 | Multi-workbench detecting and experimenting device for artificial hip joint abrasion |
| CN103760006A (en) * | 2014-01-02 | 2014-04-30 | 上海大学 | Artificial hip joint fatigue testing device |
| CN104297091A (en) * | 2014-10-23 | 2015-01-21 | 桂林电子科技大学 | Novel artificial hip joint friction testing machine |
| CN104458223A (en) * | 2014-09-17 | 2015-03-25 | 浙江工业大学 | Device used for detecting adaptability degree of high-precision friction pair |
| CN105276354A (en) * | 2015-10-19 | 2016-01-27 | 中国矿业大学 | Self-lubricating structure of hip joint testing machine and working method of self-lubricating structure |
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN106448400A (en) * | 2016-10-12 | 2017-02-22 | 中南大学 | Human knee (cap) joint bone friction simulation test device |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
| CN107727523A (en) * | 2017-10-18 | 2018-02-23 | 浙江工业大学 | A kind of multifunction manual hip joint abrasion tester |
| CN110024752A (en) * | 2019-05-22 | 2019-07-19 | 吉林大学 | A kind of fixture for insect leg joint friction test |
| CN117379235A (en) * | 2023-12-13 | 2024-01-12 | 天津市医疗器械质量监督检验中心 | Hip joint prosthesis movement angle testing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319131B (en) * | 2011-09-20 | 2014-03-19 | 北京航空航天大学 | Abrasion test device for tibiofemoral joint of bi-dimensional rotating and bi-dimensional movement synthesized knee replacement prosthesis |
-
2008
- 2008-01-08 CN CN 200810032384 patent/CN101243998B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871778A (en) * | 2012-09-29 | 2013-01-16 | 上海大学 | Multi-workbench detecting and experimenting device for artificial hip joint abrasion |
| CN102871778B (en) * | 2012-09-29 | 2014-12-31 | 上海大学 | Multi-workbench detecting and experimenting device for artificial hip joint abrasion |
| CN103760006A (en) * | 2014-01-02 | 2014-04-30 | 上海大学 | Artificial hip joint fatigue testing device |
| CN103760006B (en) * | 2014-01-02 | 2016-03-30 | 上海大学 | A kind of artificial hip joint fatigue test device |
| CN104458223A (en) * | 2014-09-17 | 2015-03-25 | 浙江工业大学 | Device used for detecting adaptability degree of high-precision friction pair |
| CN104297091A (en) * | 2014-10-23 | 2015-01-21 | 桂林电子科技大学 | Novel artificial hip joint friction testing machine |
| CN105276354A (en) * | 2015-10-19 | 2016-01-27 | 中国矿业大学 | Self-lubricating structure of hip joint testing machine and working method of self-lubricating structure |
| CN105352794A (en) * | 2015-12-07 | 2016-02-24 | 中国矿业大学 | Test piece fixture capable of guaranteeing self-adaptive contact of friction surfaces |
| CN106448400A (en) * | 2016-10-12 | 2017-02-22 | 中南大学 | Human knee (cap) joint bone friction simulation test device |
| CN106448400B (en) * | 2016-10-12 | 2022-09-20 | 中南大学 | Human knee joint bone friction simulation test device |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
| CN107727523A (en) * | 2017-10-18 | 2018-02-23 | 浙江工业大学 | A kind of multifunction manual hip joint abrasion tester |
| CN107727523B (en) * | 2017-10-18 | 2024-02-13 | 浙江工业大学 | Multifunctional artificial hip joint wear testing machine |
| CN110024752A (en) * | 2019-05-22 | 2019-07-19 | 吉林大学 | A kind of fixture for insect leg joint friction test |
| CN110024752B (en) * | 2019-05-22 | 2023-10-24 | 吉林大学 | Clamp for insect leg joint friction test |
| CN117379235A (en) * | 2023-12-13 | 2024-01-12 | 天津市医疗器械质量监督检验中心 | Hip joint prosthesis movement angle testing device |
| CN117379235B (en) * | 2023-12-13 | 2024-03-12 | 天津市医疗器械质量监督检验中心 | Hip joint prosthesis movement angle testing device |
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Effective date of registration: 20140515 Address after: 226600 Jiangsu city of Nantong province Haian County baiding town into the Industrial Park Patentee after: JIANGSU GREEN LEAVES MACHINERY Co.,Ltd. Address before: 200444 Baoshan District Road, Shanghai, No. 99 Patentee before: Shanghai University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20220108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |