CN205886451U - Peritoneoscope is with operation waste gas filter - Google Patents
Peritoneoscope is with operation waste gas filter Download PDFInfo
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- CN205886451U CN205886451U CN201620839267.4U CN201620839267U CN205886451U CN 205886451 U CN205886451 U CN 205886451U CN 201620839267 U CN201620839267 U CN 201620839267U CN 205886451 U CN205886451 U CN 205886451U
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- Prior art keywords
- filter
- gas
- guard
- joint
- waste gas
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- 239000002912 waste gas Substances 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000006185 dispersion Substances 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 150000004767 nitrides Chemical class 0.000 claims description 12
- 238000002357 laparoscopic surgery Methods 0.000 claims description 11
- 238000007912 intraperitoneal administration Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002156 adsorbate Substances 0.000 abstract description 2
- 239000000567 combustion gas Substances 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004531 microgranule Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000206 health hazard Toxicity 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ICSNLGPSRYBMBD-UHFFFAOYSA-N 2-aminopyridine Chemical group NC1=CC=CC=N1 ICSNLGPSRYBMBD-UHFFFAOYSA-N 0.000 description 1
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 208000005016 Intestinal Neoplasms Diseases 0.000 description 1
- 208000005646 Pneumoperitoneum Diseases 0.000 description 1
- 208000005718 Stomach Neoplasms Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
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- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 201000002313 intestinal cancer Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 201000011549 stomach cancer Diseases 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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- 230000001629 suppression Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to the field of medical equipment, specifically speaking relates to a peritoneoscope is with operation waste gas filter. Including the filter housing filter equipment interior with locating filter housing, filter housing's front end is connected with the joint, and the end is equipped with the gas vent, filter equipment is hollow columnar structure's combination formula filter equipment, including screen panel, filtration membrane, adsorbate layer and screen panel lid, be equipped with the gas flow passageway between filter equipment and filter housing's the inner wall, this gas flow passageway is linked together with the gas vent, waste gas gets into the filter equipment middle part by connecting to follow radially dispersion inflow gas flow passageway of filter equipment, discharge by the gas vent at last. The utility model discloses simple structure, convenient to use, filtering surface amass greatly, effectual, and gas flow is smooth and easy, can make things convenient for operation technique, can carry out effective filtration to combustion gas in the operation again, have protected medical staff and patient's health and the pollution that the operating room environment did not receive harmful gas well.
Description
Technical field
This utility model is related to a kind of medical apparatus and instruments, specifically, is related to a kind of peritoneoscope operation waste gas filter.
Background technology
In laparoscopic surgery, the use of the electrical equipment such as operation coagulation TURP and ultrasound knife vibrations cutting is all to build in carbon dioxide
Carry out under the anaerobic environment of vertical pneumoperitoneum, in-house protein and fatty imperfect combustion, produce a large amount of noxious substances and portion
Divide the bacterial viruses in free competent cell and tissue and blood, form aerosol in intraperitoneal, the clear of the visual field can be affected
Clear degree, extends operating time, causes secondary injury to patient body.Carry out with operation, need constantly to release gas to operation
Between, these gases are discharged into operating room and cause air pollution without any process, seriously compromise medical personnel and patient
Health, ever-increasing medical personnel's health problem has also caused everybody concern.
The chemical element such as carbon, hydrogen, oxygen, nitrogen phosphate and sulfur is contained inside protein, after protein burning, can be with co2、h2o、no2
Or n2、p2o5、so2Form Deng gas is flown away in atmosphere, can produce substantial amounts of polycyclic aromatic hydrocarbon compounds, wherein contains benzo
Pyrene etc. is strong to cause gastric cancer, intestinal cancer, hepatocarcinoma material, the product co that wherein carbon, hydrogen, oxygen are formed2, h2O is nontoxic, but no2、p2o5、
so2It is poisonous Deng gas, respiratory system can be caused damage.The carcinogen producing after the albumen burning of latest find all has
Have a common ground of aminopyridine group, and known the benzidine of carcinogenecity like that, due to fragrant amido presence so that it
Have very strong mutagenicity.Therefore, the salience based on problem above, needs to give in time to solve.
China Patent No. zl201310122035.8, authorized announcement date is on December 31st, 2014, and invention and created name is:
A kind of single use endoscope-assistant surgery exhaust-gas purifier, this application case is related to a kind of single use endoscope-assistant surgery waste gas filtering
Device, including filter case, is loaded with air filtration layer, one end of filter case is connected with rotation and connects in filter box body
Head, the other end is provided with gas outlet, and in filter box body, the position near gas outlet is provided with hepa filter, and this application case is not only fitted
For poisonous, harmful, the zest waste exhaust gases of filtering emission in endoscope-assistant surgery, it is simultaneously applicable to any this filtering suitable
Device, needs the environment of waste exhaust gases and the surgical application such as filtering poisonous, harmful, zest.This application case is passed through to set gradually
Active carbon fibre peacekeeping hepa filter filters to operation waste gas, has preferable filter effect.But, using active carbon fibre
This mode filtering successively of peacekeeping hepa filter, the active carbon fibre peacekeeping hepa filter of second half section can not obtain abundant profit
With causing absorption filtering material to waste, and gas flow resistance being larger, affect the waste gas velocity of discharge.
Utility model content
The purpose of this utility model is, provides a kind of peritoneoscope operation waste gas filter, to solve above-mentioned technology
Problem.
For solving the above problems, this utility model be the technical scheme is that
A kind of laparoscopic surgery intraperitoneal waste gas filter, the mistake including filter housings and in filter head housings body
Filter device；The front end of described filter housings is connected with joint, and end is provided with air vent；It is characterized in that: described defecator
For the Combined filtering apptss of hollow columnar structures, including guard, filter membrane, adsorb nitride layer and net cover；Described adsorbate
Layer is sheathed on the internal or external of guard, and the side wall of guard is provided with some through holes, and described filter membrane is sheathed on the outer of guard
Portion or inside；The front end of described guard is fixedly connected with the front end of filter housings, and is connected with joint；The end of described guard
End is fixedly connected with net cover；It is provided with air ventilation passage, this gas between described defecator and the inwall of filter housings
Circulation passage is connected with air vent；Waste gas is entered in the middle part of defecator by joint, and flows into gas along defecator radial dispersion
Body circulation passage, is finally discharged by air vent.
Further say, described filter housings include airtight connection upper casing together and lower casing, the one of described upper casing
There is joint at end by hose connection, and described air vent is located on the end of lower casing；The front end of described guard is fixedly connected with upper casing,
And be connected with joint by flexible pipe.
Further say, the position downlink connection that the front end of described upper casing is connected with flexible pipe have for Fixed-Filter housing,
Prevent the clip that filter housings fall in operation process.
Furtherly, described joint is universal peritoneoscope perforator gas injection valve jointing.
Beneficial effect: compared with prior art, the utility model has the advantage of:
1st, defecator is hollow columnar structures, and one end of defecator is connected with joint, and the other end is closed, and filters
It is provided with air ventilation passage, this air ventilation passage is connected with air vent between the side of device and the inwall of filter housings
Logical, operation waste gas is entered in the middle part of defecator by joint and along defecator radial dispersion inflow gas circulation passage, Ran Houyou
Air vent is discharged；Using the filter of this structure, structure is simple, easy to use, filtering surface is long-pending greatly, effect is good, and gas flowing is smooth,
Operation technique can be facilitated, the waste gas discharged effectively can be filtered again, protect medical worker and trouble well in operation
The health of person and operating room environment are not polluted by harmful gass；
2nd, defecator be Combined filtering apptss, easy to assembly it is achieved that multiple filtration combines, the suction of defecator
Abnormal flavour in the adsorbable gas of addendum layer and antibacterial are moreover it is possible to kill pathogenic bacteria cellular material；Interior filter membrane can be to the granule in waste gas
Carry out primary filter with molecule, and effectively stop the impurity that adsorbent produces, filter membrane can achieve that diameter is less than or equal to 0.001
The secondary filter of the pollutant such as the antibacterial of micron, microgranule, molecule, filter effect is more preferable；
3rd, joint is universal peritoneoscope perforator joint, can make with the cooperation of any form peritoneoscope perforator
With versatility is good.
Brief description
Fig. 1 is cross section structure diagram of the present utility model；
Fig. 2 is fractionation structural representation of the present utility model.
In figure: 1- joint；2- flexible pipe；3- clip；4- upper casing；5- defecator；5a- guard；5b- filter membrane；5c- adsorbs
Nitride layer；5d- net cover；6- lower casing；7- air vent.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
With reference to Fig. 1-2, laparoscopic surgery described in the utility model intraperitoneal waste gas filter, including filter housings
With the defecator 5 in filter head housings body.
Described filter housings include the upper casing 4 being sealed connected together and lower casing 6, and joint 1 passes through flexible pipe 2 and upper casing
4 connections, specifically flexible pipe 2 can be inserted on the bulge loop of the outside setting of upper casing 4, realize the quick connection of flexible pipe 2 and upper casing 4；Described
The position downlink connection that the front end of upper casing 4 is connected with flexible pipe 2 has for Fixed-Filter housing, prevents filter housings from performing the operation
The clip 3 falling in journey.The end of described lower casing 6 is provided with air vent 7.Upper casing 4 and lower casing 6 can fill in the filtration within effective protection
Put 5 from external damage.Above-mentioned joint 1 adopts universal laparoscope puncture outfit joint, can use with any form peritoneoscope
Perforator uses cooperatively, and versatility is good.
Described defecator 5 is hollow columnar structures, and its front end is installed in upper casing 4, and passes through flexible pipe 2 and joint 1 phase
Connection, its endcapped.It is provided with air ventilation passage between the side of described defecator 5 and the inwall of filter housings, should
Air ventilation passage is connected with air vent 7；The gas that operation produces enters defecator 5 middle part by joint 1 and dress is filtered on edge
Put 5 radial dispersion inflow gas circulation passages, then discharged by air vent 7.Compared with prior art, using the mistake of said structure
Filter, can facilitate operation technique, the waste gas discharged can effectively be filtered again, protect medical worker well in operation
Do not polluted by harmful gass with the health of patient and operating room environment, be there is structure simply, easy to use, filter area
Greatly, effect is good, and gas flowing is smooth, absorption, suppression is the advantages of kill cell virus.
As depicted in figs. 1 and 2, described defecator 5 is Combined filtering apptss, including guard 5a, filter membrane 5b, absorption
Nitride layer 5c and net cover 5d, described absorption nitride layer 5c adopts hollow tubular structure, is sheathed on and (can also be set in inside guard 5a
Outside guard 5a)；The side wall of described guard 5a is provided with some through holes, and these through holes are preferably uniformly arranged on guard 5a
Cloth, is beneficial to the distribution discharge of gas；It is outside (can also be set in inside guard 5a) that described filter membrane 5b is sheathed on guard 5a；
The front end of described guard 5a, rear end are fixedly connected with upper casing 4, net cover 5d respectively, in order to increase bonding strength and sealing, excellent
The link position being selected in upper casing 4, net cover 5d and guard 5a is respectively provided with boss assembling structure, and adds appropriate glue.In addition,
In order that gas disperse in defecator 5 more uniformly, filter effect more preferably, absorption nitride layer 5c in described defecator 5
Arranged using micropore around hollow, absorption nitride layer 5c is provided with some side openings, these side openings are preferably in absorption nitride layer 5c
Pars intermedia and surrounding divide uniform arrangement, are beneficial to the distribution discharge of gas.Described absorption nitride layer 5c is preferably activated carbon or enzyme thing
Matter, the adsorbable, abnormal flavour that suppresses, kill in gas and antibacterial, described filter membrane 5b can achieve that diameter is less than or equal to 0.001 micron
Antibacterial, microgranule, the secondary filter of the pollutant such as molecule, filter effect is more preferable.
Certainly, described defecator 5 is not limited to the defecator that combinations thereof structure and above-mentioned material are made,
Can be made using many kinds of substance and there is filtration, absorption, the single complex defecator of removing abnormal flavour；Or it is also possible to make
Other Combined filtering apptss with one or more materials, part composition.
Laparoscopic surgery described in the utility model intraperitoneal waste gas filter, mainly discharges in laparoscopic surgery
Gas filtered, make in the medical worker of operation room work and patient, thoroughly break away from what operation gas for a long time brought
Health hazard, protects operating room clean working environment；Joint 1 is modular connection, can be with the laparoscope puncture outfit of any producer
Gas injection valve connects use, has good versatility and practicality.During use, joint 1 is connected with the gas injection valve of laparoscope puncture outfit
Connect, open the gas injection threshold switch of perforator, gas enters in flexible pipe 2 and is assemblied in the defecator 5 in filter head housings body, gas
When body passes through to adsorb nitride layer 5c, absorption nitride layer 5c is adsorbed, suppresses, the abnormal flavour that kills in gas and antibacterial；Then, then by filtering
Film 5b carries out secondary filter (antibacterial of filtration, microgranule, molecule equal diameter are less than or equal to 0.001 micron)；Through filter membrane 5b mistake
The gas of filter, discharges from the air vent 7 of lower casing 6 bottom, completes the filtration of whole gas, odor adsorption, suppresses, kills antibacterial mistake
Journey.
Laparoscopic surgery described in the utility model intraperitoneal waste gas filter, has structure simply, easy to use, mistake
It is good that filtering surface amasss big, effect, gas flow smooth, versatility and practical the advantages of, operation technique can be facilitated, and can opponent
The waste gas discharged in art is effectively filtered, and protects medical worker and the health of patient and operating room environment not to be subject to well
The pollution of harmful gass, makes in the medical worker of operation room work and patient, has thoroughly broken away from operation gas for a long time and has brought
Health hazard.What deserves to be explained is, peritoneoscope described in the utility model uses the range of operation waste gas filter not only
It is applied to the filtration of laparoscopic surgery gas discharge, be also applied for any filter that is suitable for and do the Medical treatment device directly or indirectly assisting
Tool and medicine and hygiene fieldses.
Below schematically this utility model and embodiments thereof are described, this description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, in the case of creating objective without departing from this utility model, without creatively designing
The frame mode similar to this technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (4)
1. a kind of laparoscopic surgery intraperitoneal waste gas filter, the filtration including filter housings and in filter head housings body
Device (5)；The front end of described filter housings is connected with joint (1), and end is provided with air vent (7)；It is characterized in that: described mistake
Filter device (5) is the Combined filtering apptss of hollow columnar structures, including guard (5a), filter membrane (5b), absorption nitride layer (5c)
With net cover (5d)；Described absorption nitride layer (5c) is sheathed on the internal or external of guard (5a), and the side wall of guard (5a) sets
There are some through holes, described filter membrane (5b) is sheathed on the outside or inside of guard (5a)；The front end of described guard (5a) and mistake
The front end of filter shell is fixedly connected, and is connected with joint (1)；The end of described guard (5a) is fixing with net cover (5d) even
Connect；Described defecator (5) is provided with air ventilation passage and the inwall of filter housings between, this air ventilation passage and aerofluxuss
Mouth (7) is connected；Waste gas is entered in the middle part of defecator (5) by joint (1), and along defecator (5) radial dispersion inflow gas
Circulation passage, is finally discharged by air vent (7).
2. laparoscopic surgery according to claim 1 with intraperitoneal waste gas filter it is characterised in that: described filter head housings
Body includes airtight connection upper casing (4) together and lower casing (6), and one end of described upper casing (4) is connected with joint by flexible pipe (2)
(1), described air vent (7) is located on the end of lower casing (6)；The front end of described guard (5a) is fixedly connected with upper casing (4), and leads to
Cross flexible pipe (2) to be connected with joint (1).
3. laparoscopic surgery according to claim 2 with intraperitoneal waste gas filter it is characterised in that: described upper casing (4)
The position that connects with flexible pipe (2) of front end be connected with for Fixed-Filter housing, prevent filter housings in operation process
The clip (3) falling.
4. laparoscopic surgery according to claim 3 with intraperitoneal waste gas filter it is characterised in that: described joint
(1) it is universal peritoneoscope perforator gas injection valve jointing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839267.4U CN205886451U (en) | 2016-07-31 | 2016-07-31 | Peritoneoscope is with operation waste gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839267.4U CN205886451U (en) | 2016-07-31 | 2016-07-31 | Peritoneoscope is with operation waste gas filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205886451U true CN205886451U (en) | 2017-01-18 |
Family
ID=57783684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839267.4U Expired - Fee Related CN205886451U (en) | 2016-07-31 | 2016-07-31 | Peritoneoscope is with operation waste gas filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205886451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107866123A (en) * | 2017-11-06 | 2018-04-03 | 安徽优尼科医疗科技有限公司 | A kind of Biodine gas-filtering device |
| CN108392946A (en) * | 2018-04-13 | 2018-08-14 | 河南科技大学第附属医院 | A kind of flue-gas purification equipment of double-pole electric coagulation forceps |
-
2016
- 2016-07-31 CN CN201620839267.4U patent/CN205886451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107866123A (en) * | 2017-11-06 | 2018-04-03 | 安徽优尼科医疗科技有限公司 | A kind of Biodine gas-filtering device |
| CN108392946A (en) * | 2018-04-13 | 2018-08-14 | 河南科技大学第附属医院 | A kind of flue-gas purification equipment of double-pole electric coagulation forceps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170922 Address after: 14 Building 276000, 1406, C block, Applied Science City, hi tech Zone, Shandong, Linyi, 1407 Patentee after: Shandong Huayi Medical Technology Co Ltd Address before: 276000 No. 50 Lishan Road, Yinan County, Shandong, Linyi Patentee before: Li Shuting |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190731 |