CN202250735U - Electrically actuated artificial muscle pump - Google Patents
Electrically actuated artificial muscle pump Download PDFInfo
- Publication number
- CN202250735U CN202250735U CN2011204067341U CN201120406734U CN202250735U CN 202250735 U CN202250735 U CN 202250735U CN 2011204067341 U CN2011204067341 U CN 2011204067341U CN 201120406734 U CN201120406734 U CN 201120406734U CN 202250735 U CN202250735 U CN 202250735U
- Authority
- CN
- China
- Prior art keywords
- pump
- way valve
- artificial
- muscle
- pump chamber
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an electrically actuated artificial muscle pump. A support is arranged outside a pump chamber, one end of the pump chamber is connected with a flow guide pipe, the other end of the pump chamber is connected with a pump cover, a diaphragm is arranged on the combination surface of the pump chamber and the pump cover, an artificial muscle piece is arranged on the surface of the diaphragm propping against the pump cover, an electrically controlled one-way valve A is connected with the inlet of the flow guide pipe, an electrically controlled one-way valve B is connected with the outlet of the flow guide pipe, the part of the flow guide pipe on the electrically controlled one-way valve B is provided with an energy accumulator, and the artificial muscle piece, the electrically controlled one-way valve A and the electrically controlled one-way valve B are connected with a drive controller through wires. During operation of the pump, the alternating-current voltage of a certain type with the same amplitude and frequency can be applied on each artificial muscle piece through the drive controller, so as to excite the artificial muscle piece to bend and vibrate, the elastic diaphragm can be driven for contraction and expansion through the vibration, the volume of the pump chamber can be changed, and the pumping function can be realized.
Description
Technical field
The utility model relates to fluid pump, belongs to the change displacement pump field in the mechanical pump, and specifically a kind of medical procedure of the electric field induced strain effect realization fluid pump function of electric actuation artificial-muscle that utilizes is used low-capacity pump, relates in particular to electric actuation artificial-muscle pump.
Background technique
The medical fluid delivery device is one type of important medical apparatus, the very important effect of performance in medical procedure and operation.For example, in celioscopy and endoscopy, just need to adopt fluid pump to carry medicine to the affected part; In haemodialysis or openheart surgery; Also need utilize pump to hemo system or heart-lung machine pumping blood, pump is also through being usually used in gathering human body fluid, so that carry out medical analysis in addition.At present, most medical pumps all adopt positive-displacement pump and centrifugal pump.
Characteristics such as positive-displacement pump utilizes parts such as gear, spiral, roller that fluid is sucked pump chamber from sucking end, again fluid is transported to exhaust end, has stability of flow, and suction force is strong, and pressure head is stable and simple in structure.Centrifugal pump is then through the rotation of pump shaft impeller; Ordering about fluid is got rid of to impeller outlet by blade passage under centrifugal action;, spiral case sends into discharge tube after collecting again; It has that space hold is little, noise is little, cost is low and characteristics such as pulsating movement free phenomenon, but the suction force of centrifugal pump is lower, head is little and frictional loss is bigger.Positive-displacement pump and iron pump include multiple patterns such as gear pump, peristaltic pump, reciprocating pump, radial impeller pump, axial-flow pump.No matter be positive-displacement pump or centrifugal pump, they all need utilize motor or internal-combustion engine directly or indirectly to drive usually.
Existing positive-displacement pump and centrifugal pump technology are ripe just day by day, wait each field to be used widely in production and life.However, also there is certain deficiency in these pumps, such as, a bigger rotor-support-foundation system need be set in their pump chamber usually, this makes the pump structure more complicated that becomes.Particularly, rotor-support-foundation system also directly contacts (like wing pump, gear pump) usually with fluid, and this has just increased the contaminated possibility of fluid greatly, thereby has also restricted its application at medical domain.Under this condition, constantly release brand-new pumping technology and solve this type of problem, and the pattern of full stream of fluid pump, just become is necessary very much.
Summary of the invention
The purpose of the utility model is to provide a kind of electricity of electric actuation artificial-muscle (IPMC) actuator that utilizes to cause technology and the device that the flexural strain effect realizes the fluid pumping, and has simple in structure, the high and low driven of pumping efficiency, can realize advantage such as accurate flow control.
The utility model is realized above-mentioned purpose through following technological scheme.Electric actuation artificial-muscle pump comprises pump chamber, pump cover, honeycomb duct, barrier film, artificial muscle's sliced meat, electric control one-way valve A, electric control one-way valve B, accumulator, drive controller and bearing, and pump chamber is equipped with bearing outward; One end of pump chamber connects honeycomb duct; The pump chamber the other end is connected with pump cover, accompanies barrier film at the junction plane of pump chamber and pump cover, and artificial muscle's sliced meat are installed in the one side that barrier film leans on pump cover; Electric control one-way valve A connects the inlet of honeycomb duct; Electric control one-way valve B connects the outlet of honeycomb duct, and on the honeycomb duct that electric control one-way valve B is connected accumulator is installed, and artificial muscle's sliced meat, electric control one-way valve A and electric control one-way valve B are connected drive controller through lead.
One end sealing surface of said pump chamber is provided with the opening that connects honeycomb duct, and the other end is that tubulose and outer periphery are provided with flange plate.
Said pump cover is the semicircle spill, and one of which end outer periphery is provided with the flange plate corresponding with the pump chamber tubular tip, and the other end is the sealing concave surface, and is provided with through hole.
Said artificial muscle's sliced meat are distributed on the barrier film.
Said barrier film is the sealed elastic diaphragm, and thickness is 0.15mm～0.5 mm.
The amplitude of said drive controller signal is 1V～10V, and the frequency of output drive signal is 0.1Hz～10Hz.
The technique effect of the utility model is: (1) pump--the function transfer process is carried out through artificial muscle's sliced meat, thereby has realized no prime moverization that fluid pump drives, and has improved the operational efficiency of pump; (2) pump is that actuator directly drives elastic diaphragm with artificial muscle's sliced meat, can save the required numerous and jumbled motion of conventional fluid pump, thereby simplify pump structure; (3), therefore can avoid the pollution of actuator convection cell owing to the actuator artificial muscle sliced meat as pump do not contact with fluid; (4) because the driving voltage lower (being usually less than 10V) of artificial muscle's sliced meat, but so this pump low voltage drive running; (5) can change the actuating amount of artificial-muscle owing to change the driving voltage amplitude of artificial-muscle, and then can change pump volume amplitude, the driver frequency that changes artificial muscle's sliced meat just can change rate of pumping, and this just makes this pump can realize accurate flow control.
Description of drawings
Fig. 1 is the form structure schematic representation of the utility model
Fig. 2 is the schematic diagram of the utility model.
Fig. 3 is the structure sectional view of the utility model.
Fig. 4 is the configuration mode schematic representation of artificial-muscle on barrier film among Fig. 3.
Fig. 5 is that the pump of the utility model is inhaled the state sectional view.
Fig. 6 is the pump row state sectional view of the utility model.
Among the figure: 1-pump chamber, 2-pump cover, 21-lid hole, 3-honeycomb duct, 4-barrier film, 5-artificial muscle sliced meat, 51-lead, 6-electric control one-way valve A, 7-electric control one-way valve B, 8-drive controller, 9-accumulator, 10-bearing.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further, referring to Fig. 1～6, electric actuation artificial-muscle pump; Comprise pump chamber 1, pump cover 2, honeycomb duct 3, barrier film 4, artificial muscle's sliced meat 5, electric control one-way valve A6, electric control one-way valve B7, accumulator 9, drive controller 8 and bearing 10; The pump chamber 1 outer bearing 10 that is equipped with, an end of pump chamber 1 connects honeycomb duct 3, and pump chamber 1 the other end is connected with pump cover 2; Junction plane at pump chamber 1 and pump cover 2 accompanies barrier film 4; Artificial muscle's sliced meat 5 are installed in the one side that barrier film 4 leans on pump cover 2, and electric control one-way valve A6 connects the inlet of honeycomb duct 3, and electric control one-way valve B7 connects the outlet of honeycomb duct 3; With on the honeycomb duct 3 that electric control one-way valve B7 is connected accumulator 9 is installed, artificial muscle's sliced meat 5, electric control one-way valve A6 and electric control one-way valve B7 are connected drive controller 8 through lead.
One end sealing surface of said pump chamber 1 is provided with the opening that connects honeycomb duct 3, and the other end is that tubulose and outer periphery are provided with flange plate.
Said pump cover 2 is the semicircle spill, and one of which end outer periphery is provided with and the corresponding flange plate of pump chamber 1 tubular tip, and the other end is a sealing surface, and is provided with through hole 21.
Said artificial muscle's sliced meat 5 are distributed on the barrier film 4.
Said barrier film 4 is the sealed elastic diaphragm, and thickness is 0.15mm～0.5 mm.
The amplitude of said drive controller 8 signals is 1V～10V, and the frequency of output drive signal is 0.1Hz～10Hz.
Well-known electroactive polymer (EAP); Claim the electric actuation artificial-muscle again; Being one type induces following in external electric field; Can produce bending through changing its internal structure, stretch, tighten or the high molecular polymer of multiple mechanical behavior such as distortion, its electricity amount of causing is big, response is fast, mechanical-electric coupling efficient is high.In various EAP; The most representative is the synthetic (IPMC) of metal and Ionomer; The electric actuation strain effect of this EAP is to be based upon on the basis of its internally charged hydrated cation diffusion motion, and it does the time spent in low voltage (less than 10V), can produce obvious bending.Utilize this electricity of IPMC to cause curvature effect, can realize many dynamo-electric functions, the pumping installations that the utility model is released just is being based on the IPMC artificial-muscle.
Referring to Fig. 2 and Fig. 3, this pump comprises pump chamber 1, pump cover 2, honeycomb duct 3, barrier film 4, artificial muscle's sliced meat 5, electric control one-way valve A6, electric control one-way valve B7, drive controller 8, accumulator 9 and bearing 10.Drive controller 8 is connected with artificial muscle's sliced meat 5, electric control one-way valve A6 and electric control one-way valve B7 respectively through lead, and pump cover 2 is the semicircle spill, and one of which end outer periphery is provided with and the corresponding flange plate of pump chamber 1 tubular tip, and the other end is a sealing surface, and is provided with through hole 21.The electric wire of artificial muscle's sliced meat 5 passes through hole 21, connects drive controller 8; Electric control one-way valve A6 also is connected drive controller 8 through lead respectively with electric control one-way valve B7.
When pump operation; The alternating voltage excitation artificial muscle sliced meat 5 that on each artificial-muscle sheet 5, apply the constant amplitude of a definite form, same frequency through drive controller 8 carry out flexure vibrations; And shrink and extensional motion through this vibration band dynamic elasticity barrier film 4; Thereby change the volume of pump chamber 1, thereby realize the pump function of pump.
Embodiment:The preferred forms of the utility model is the structure that is designed with two pump chambers 1; And the elastomeric barrier film 4 that in two pump chambers 1, respectively is provided with a sealing is to be used to change the volume of pump chamber 1; Adopt two pump chambers 1 main purpose be to increase the suction force and the pumping capacity of pump, and can remedy the less deficiency of artificial muscle's sliced meat 5 outputting powers.If will increase pump delivery, also can be this 3 of pump configuration or more pump chamber 1 according to circumstances.Driving voltage during the running of electric actuation artificial-muscle pump is less than 10V.
The controlling method of electric actuation artificial-muscle pump:
1) to artificial muscle's sliced meat 5 dutycycle to be provided be 50% continuously adjustable bipolar square wave excitation pulse to drive controller 8, and the amplitude of signal is 1V～10V, and the frequency of output drive signal is 0.1Hz～10Hz;
When 2) pump aspirates; Through drive controller 8 control electric control one-way valve A6 energisings; Open the inlet of honeycomb duct 3, honeycomb duct 3 outlets are closed in electric control one-way valve B7 outage simultaneously; Artificial muscle's sliced meat on two barrier films 45 are fed positive voltage, and excitation artificial muscle sliced meat 5 also order about barrier film 4 synchronously to the bending of pump cover 2 concave panels;
When 3) pump is arranged; 8 control electric control one-way valve A6 close through drive controller; Control the inlet of closing honeycomb duct 3; And electric control one-way valve B7 switched on to open honeycomb duct 3 outlet, the artificial muscle's sliced meat on the barrier film 45 are fed negative voltages, excitation artificial muscle sliced meat 5 also order about barrier film 4 bending to pump chamber 1 in synchronously;
The accumulator 9 absorption systems pulsation of 4) installing on the honeycomb duct 3 relaxes hydraulic shock, the impact during the absorption system pressure jump;
5) accomplish pumping circulation through suction and two processes of pump row.
Pump when accompanying drawing 4 has provided and turned round based on electric actuation artificial-muscle pump is inhaled state.Visible among the figure, can from hold chute, suck pump chamber 1 to fluid for making pump, must switch on to electric control one-way valve A 6 earlier, open the inlet of honeycomb duct 3, need so simultaneously electric control one-way valve B 7 is cut off the power supply, to close outlet; Meanwhile; Needing all the artificial-muscle sheets 5 on two barrier films 4 are fed polarity be that positive voltage is outwardly-bent synchronously with excitation artificial muscle sliced meat 5; Order about two barrier films 4 and outwards stretch, thereby the volume of pump chamber 1 is increased, in pump chamber 1, form the suction that certain degree of vacuum is beneficial to fluid.
Pump row state when accompanying drawing 5 has provided and turned round based on electric actuation artificial-muscle pump.Can find out by figure, can discharge to going out head piece from pump chamber 1 that what need to turn-off earlier electric control one-way valve A6 controls voltage closing the inlet of honeycomb duct 3, and electric control one-way valve B7 is switched on to open outlet for guaranteeing the fluid in the suction pump; Meanwhile; Needing that also all the artificial-muscle sheets 5 on two barrier films 4 are fed polarity curves inwardly with excitation artificial muscle sliced meat 5 for negative voltage synchronously; Thereby two barrier films 4 are inwardly shunk, pump chamber 1 volume is diminished, in pump chamber 1, form certain fluid pressure so that discharge the fluid in the pump chamber 1.
Based on suction of the every completion of electric actuation artificial-muscle pump and pump row action, just realize an one of which pumping circulation, the utility model is exactly through constantly repeating the continuous conveying that above-mentioned pumping circulation realizes fluid.
Electric control one-way valve A6 and electric control one-way valve B7 all adopt the electromagnetism control mode.The frequency of controlling of electric control one-way valve must be identical with the energizing frequency of artificial-muscle; And act on the electric control one-way valve A6 control signal must with the excitation pulse homophase of artificial muscle's sliced meat 5, but act on the electric control one-way valve B7 control signal must with the excitation pulse anti-phase of artificial muscle's sliced meat 5.Why two electric control one-way valves adopt the electromagnetism control mode and do not adopt traditional mechanical handling mode, mainly are to consider that the outputting power of artificial-muscle sheet 5 is not too big.
Fig. 3 has provided the configuration mode of artificial muscle's sliced meat 5 on elastic diaphragm 4.Visible among the figure, in order to realize effective driving, need 8 or more artificial muscle's sliced meat 5 are distributed in barrier film 4 surfaces along the radial position of barrier film 4 to barrier film 4.In practical applications, also can be according to actual needs and condition, confirm the configuration mode and the quantity of artificial muscle's sliced meat 5.Theoretically, the artificial muscle's sliced meat 5 that disposed are many more, and the suction capactity of pump is just strong more, and its discharge capacity also will be big more.
Artificial muscle's sliced meat 5 must adopt soft glue to stick on the surface of barrier film 4, can avoid barrier film 4 and the curing lose flexibility of artificial muscle's sliced meat 5 because of viscose glue like this, also can avoid artificial muscle's sliced meat 5 electricity to occur and cause the effect decay.
In order to increase the pump energy-absorbing power of barrier film 4 as far as possible, should adopt multilayer artificial muscle sliced meat 5 or the big power artificial muscle of thick-layer sliced meat 5 actuator as barrier film 4 as far as possible.
Aspect artificial-muscle energising configuration, need connect the negative pole of power supply with artificial muscle's sliced meat 5 lip-deep electrodes that barrier film 4 directly contact, should connect positive grade of driving power and deviate from electrode on the surperficial artificial muscle's sliced meat 5 of barrier film 4.
Expand synchronously rhythmically and shrink in pump chamber 1 in order to guarantee two barrier films 4; The configuration mode of two pump chamber 1 septations 4 is: the surface that two barrier films 4 do not post artificial muscle's sliced meat 5 must be in the state of " face-to-face ", and the surface of posting artificial muscle's sliced meat 5 then should be the layout of " back-to-back ".
The main effect of drive controller 8 is: for artificial-muscle sheet 5 provides excitation and control signal.In order to improve the driving efficient and the outputting power of monolithic artificial muscle sliced meat 5, drive controller 8 is necessary for artificial muscle's sliced meat 5, and dutycycle is provided is 50% bipolar square wave excitation pulse, and the amplitude of signal should be in 1V～10V scope, and can be adjustable continuously; The frequency of output drive signal then should be adjustable continuously in 0.1Hz～10Hz scope.
The utility model is the pumping that realizes fluid of contracting through pump chamber 1, will inevitably cause that pulsation to a certain degree appears in honeycomb duct 3 rates of discharge.For avoiding this situation, the utility model is provided with month accumulator 9 near the honeycomb duct 3 of electric control one-way valve B7 goes out the head piece place.When in certain pumping circulation, the flow that pumps is bigger than normal, and the unnecessary fluid of part flows into accumulator 9 automatically; And if the pump chamber output flow is less than normal, then accumulator 9 will flow out the deficiency of certain fluid with compensating flowrate, but also absorption system pulsation of accumulator 9 relaxes hydraulic shock; Impact when accumulator 9 can the absorption system pressure jumps has so just reached the purpose of the output flow and the system pressure of stable pump.
Place honeycomb duct 3 other left and right two pump chambers 1 to connect honeycomb duct 3 through thread seal respectively; Pump cover 2 has been pressed one deck elastic diaphragm 4 through the pump chamber 1 that is threaded respectively on the junction plane of pump chamber 1 and pump cover 2, artificial muscle's sliced meat 5 are connected on the barrier film 4; Electric control one-way valve A6 is connected the ingress of honeycomb duct 3; Electric control one-way valve B7 connects the outlet port of honeycomb duct 3, and accumulator 9 connects honeycomb duct 3, and artificial muscle's sliced meat 5 connect drive controller 8 through lead.
Claims (6)
1. electric actuation artificial-muscle pump; Comprise pump chamber (1), pump cover (2), honeycomb duct (3), barrier film (4), artificial muscle's sliced meat (5), electric control one-way valve A (6), electric control one-way valve B (7), accumulator (9), drive controller (8) and bearing (10); It is characterized in that; The outer bearing (10) that is equipped with of pump chamber (1), an end of pump chamber (1) connects honeycomb duct (3), and pump chamber (1) the other end is connected with pump cover (2); Junction plane at pump chamber (1) and pump cover (2) accompanies barrier film (4); Artificial muscle's sliced meat (5) are installed in the one side that barrier film (4) leans on pump cover (2), and electric control one-way valve A (6) connects the inlet of honeycomb duct (3), and electric control one-way valve B (7) connects the outlet of honeycomb duct (3); With on the honeycomb duct (3) that electric control one-way valve B (7) is connected accumulator (9) is installed, artificial muscle's sliced meat (5), electric control one-way valve A (6) and electric control one-way valve B (7) are connected drive controller (8) through lead.
2. electric actuation artificial-muscle pump according to claim 1 is characterized in that, an end sealing surface of said pump chamber (1) is provided with the opening that connects honeycomb duct (3), and the other end is that tubulose and outer periphery are provided with flange plate.
3. electric actuation artificial-muscle pump according to claim 1 and 2 is characterized in that said pump cover (2) is the semicircle spill, and one of which end outer periphery is provided with and the corresponding flange plate of pump chamber (1) tubular tip, and the other end is a sealing surface, and is provided with through hole (21).
4. electric actuation artificial-muscle pump according to claim 1 is characterized in that said artificial muscle's sliced meat (5) are distributed on the barrier film (4).
5. electric actuation artificial-muscle pump according to claim 1 is characterized in that said barrier film (4) is the sealed elastic diaphragm, and thickness is 0.15mm～0.5 mm.
6. electric actuation artificial-muscle pump according to claim 1 is characterized in that, the amplitude of said drive controller (8) signal is 1V～10V, and the frequency of output drive signal is 0.1Hz～10Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204067341U CN202250735U (en) | 2011-10-24 | 2011-10-24 | Electrically actuated artificial muscle pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204067341U CN202250735U (en) | 2011-10-24 | 2011-10-24 | Electrically actuated artificial muscle pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250735U true CN202250735U (en) | 2012-05-30 |
Family
ID=46111987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204067341U Expired - Fee Related CN202250735U (en) | 2011-10-24 | 2011-10-24 | Electrically actuated artificial muscle pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250735U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338069A (en) * | 2011-10-24 | 2012-02-01 | 南昌航空大学 | Electric actuating artificial muscular pump and control method thereof |
| CN105598964A (en) * | 2016-01-25 | 2016-05-25 | 哈尔滨工业大学 | Independent gas supply pneumatic system capable of providing pneumatic muscles for working |
-
2011
- 2011-10-24 CN CN2011204067341U patent/CN202250735U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338069A (en) * | 2011-10-24 | 2012-02-01 | 南昌航空大学 | Electric actuating artificial muscular pump and control method thereof |
| CN105598964A (en) * | 2016-01-25 | 2016-05-25 | 哈尔滨工业大学 | Independent gas supply pneumatic system capable of providing pneumatic muscles for working |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205025709U (en) | Pressure boost centrifugal pump | |
| CN101846059A (en) | Self-adaptive piezoelectric pump with active valve | |
| WO2009111970A1 (en) | Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system | |
| CN202250735U (en) | Electrically actuated artificial muscle pump | |
| CN1840903A (en) | Piezoelectric film type fluid pump | |
| CN100516565C (en) | Embedded shape-memory alloy wire actuator driven micro multi-cavity negative sucker | |
| CN105386966A (en) | Micro diaphragm pump | |
| CN104153978A (en) | Piezoelectric-vibration type micro fluid pumping device | |
| CN1908431A (en) | Over-magnetostriction rod drive membrane pump | |
| CN203770100U (en) | Piezoelectric vibrating type microfluid pumping device | |
| CN102338069A (en) | Electric actuating artificial muscular pump and control method thereof | |
| CN201723421U (en) | Piezoelectric pump for self-adapting active valve | |
| CN1020941C (en) | Positive displacement pump | |
| CN102671248B (en) | Implantable bionic flexible pulsatile pump | |
| CN103041461B (en) | Medical suction device | |
| ZA200802182B (en) | Device for concentrating a liquid, and differential piston pump | |
| WO2008021503A2 (en) | Air supply mechanism for ventricular assist system | |
| US20070085449A1 (en) | Electro-active valveless pump | |
| CN110005596A (en) | A kind of drive-type piezoelectricity membrane pump | |
| CN208934891U (en) | Power integration diaphragm pump | |
| CN202280601U (en) | Small flow pump driven by electrically-actuated artificial muscle actuator | |
| CN105201792B (en) | A kind of spring has valve piezoelectric pump | |
| CN204591628U (en) | A kind of opposed type permanent-magnett electromagnetic air pump | |
| CN102338068A (en) | Small flow pump driven by electric actuating artificial muscle actuator | |
| CN2637765Y (en) | One way valve micro pump having no moving part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121024 |