CN214966835U - Be applied to many steel balls of cerebrovascular intervention operation and measure structure - Google Patents
Be applied to many steel balls of cerebrovascular intervention operation and measure structure Download PDFInfo
- Publication number
- CN214966835U CN214966835U CN202121636812.7U CN202121636812U CN214966835U CN 214966835 U CN214966835 U CN 214966835U CN 202121636812 U CN202121636812 U CN 202121636812U CN 214966835 U CN214966835 U CN 214966835U
- Authority
- CN
- China
- Prior art keywords
- bonding
- steel
- steel ball
- bottom coating
- plaster
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 239000011505 plaster Substances 0.000 claims abstract description 11
- 238000002601 radiography Methods 0.000 claims abstract description 7
- 210000001061 forehead Anatomy 0.000 claims abstract description 6
- 229920000297 Rayon Polymers 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 40
- 238000010030 laminating Methods 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000004753 textile Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 abstract description 14
- 238000005253 cladding Methods 0.000 abstract description 8
- 239000002674 ointment Substances 0.000 abstract description 6
- 210000004556 brain Anatomy 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 8
- 230000002490 cerebral effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000036285 pathological change Effects 0.000 description 3
- 231100000915 pathological change Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 238000002583 angiography Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000005077 saccule Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 208000019553 vascular disease Diseases 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 210000004781 brain capillary Anatomy 0.000 description 1
- 238000002585 cerebral angiography Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 239000012939 laminating adhesive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Images
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The utility model discloses a be applied to many steel balls of brain blood vessel intervention operation and measure structure, including cladding mechanism, cladding mechanism includes that the bottom cladding is applied ointment or plaster, and the both edges department that the bottom cladding was applied ointment or plaster is provided with strip bonding cloth, and the back of strip bonding portion bonds with patient's radiography forehead position, and the cloth that the bottom cladding was applied ointment or plaster is woven by software textile fabric and is made, and wherein four edges department that lie in the bottom cladding and apply ointment or plaster have all seted up a plurality of circular bonding hole sites, and the inside of a plurality of circular bonding hole sites all bonds there is two-sided viscose, and the surface of two-sided viscose still bonds there is dustproof paper, the beneficial effects of the utility model are that: the steel ball placing hole positions, the comparison steel balls and the application cover are used for placing the steel balls needing comparison processing into the steel ball placing hole positions.
Description
Technical Field
The utility model relates to a medical treatment auxiliary device technical field specifically is a be applied to many steel balls of brain blood vessel intervention operation and measure structure.
Background
Digital Subtraction Angiography (DSA) is considered as a gold standard for diagnosing vascular diseases. Therefore, the DSA image measurement technology can be correctly applied to evaluate the stenosis degree of the cerebral vessels, and the method is particularly important for an interventional operation doctor to select the models of materials such as a stent, an expansion balloon, a spring ring and the like.
At present, DSA machines have two working modes of self-contained measurement software: one method is based on contrast of the pipe diameters of the radiography catheters, the other method is direct measurement, but the two methods have larger errors, particularly, intracranial blood vessels are more in branches and small in pipe diameter, the phenomenon of blood vessel overlapping is easy to occur due to conventional positive lateral position acquisition, a C-shaped arm is generally rotated by a certain angle, the narrow and diseased blood vessels are clearly displayed, but the angle of rotation of the C-shaped arm to any direction cannot be larger than 15 degrees when a DSA (digital radiography) device measurement system is used for measurement, otherwise the measurement system is not subjected to measurement, and therefore the DSA device self-contained measurement system has certain limitation.
There is a report in the literature that a steel ball of 10mm is used as a reference object, but the center of a circle needs to be accurately found during measurement, and errors are easy to occur by naked eyes.
When current contrast mode medical personnel can't more audio-visual contrast observe the operation is intervened to the cerebral vascular connector, whether the development of the growth of the brain capillary of follow-up operation region department is good and normal to timely discovery vascular regional problem makes things convenient for medical personnel in time to make corresponding adjustment.
Disclosure of Invention
An object of the utility model is to provide a be applied to many steel balls of brain blood vessel intervention operation and measure structure to solve the problem that is unfavorable for observing the angiogram size ratio in the traditional brain blood vessel intervention operation that above-mentioned background art provided.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-steel-ball measuring structure applied to a cerebrovascular interventional operation comprises a coating mechanism, wherein the coating mechanism comprises a bottom coating application, strip-shaped bonding cloths are arranged at two edges of the bottom coating application, the back surfaces of the strip-shaped bonding cloths are bonded with the radiography forehead of a patient, the cloth of the bottom coating application is made of soft textile fabric in a weaving mode, a plurality of circular bonding hole sites are formed in four edges of the bottom coating application, double-sided adhesive is bonded inside the circular bonding hole sites, and dustproof paper is further bonded on the surfaces of the double-sided adhesive;
the steel ball placing mechanism comprises a buckling groove formed in the top of the bottom coating applicator, a buckling rotary table is attached to the top of a groove position of the buckling groove, and a circular positioning point is arranged in the circular middle of the buckling rotary table.
As an optimal scheme of the utility model: the surface of circular setpoint has inlayed and has had the location steel ball, the outside of location steel ball is provided with the cross rod, the body of rod end fixed mounting of cross rod has laminating bonding seat, the top surface of laminating bonding seat corresponds respectively and has seted up a plurality of steel balls and place the hole site, the steel ball is placed the top of hole site and still is bonded through the viscose and has a plurality of specification and dimension comparison steel balls that differ.
As an optimal scheme of the utility model: wherein compare enclosing of steel ball and locate the periphery of laminating bonding seat, it is a plurality of wherein the size diameter size of comparing the steel ball bonds side by side with the surface of laminating bonding seat in proper order, the middle part of laminating bonding seat is provided with ring form angle scale.
As an optimal scheme of the utility model: the top cover mechanism comprises a cover applying cover arranged above the bottom covering applying cover in a covering mode, and four corners of the bottom of the applying cover are fixedly bonded with the corners of the attaching bonding seat.
As an optimal scheme of the utility model: the size of the application cover is larger than the inner diameter of the bonding and bonding seat, and the application cover is matched with the position of the bonding and bonding seat below the application cover.
As an optimal scheme of the utility model: the interior of the application cover is hollow and can be detached from the bottom coating application, and the application cover and the bottom coating application are both replaceable.
Compared with the prior art, the beneficial effects of the utility model are that:
1) through the bottom coating paste, the strip-shaped bonding cloth and the round bonding hole site, a person can conveniently place the steel ball placement mechanism on the surface of the bottom coating paste in a coating manner to perform certain bonding coating treatment, the steel ball placement hole site, the steel ball and the application cover are placed by means of steel balls, so that the steel balls needing to be compared are placed in the steel ball placement hole site, the steel balls with different sizes are adopted to facilitate the steel balls to serve as reference objects, the circle center needs to be conveniently found during measurement, the error of blood vessel comparison and time comparison is reduced, medical personnel can more intuitively compare and observe whether the growth and development of cerebral capillaries in the subsequent operation area are good and normal or not, and the problem of the blood vessel area can be timely found to be correspondingly adjusted;
2) the mode of the support through the laminating bonding seat who adopts and cross rod makes its center that more convenient definite comparison, adopts removable design between, in time takes out the measurement steel ball in applying ointment or plaster the cover after finishing using, and the cladding of renewal is applied ointment or plaster in the change, can provide comparatively accurate detection for the patient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the bottom-coated application and steel ball placement mechanism of the present invention;
FIG. 3 is a schematic view of the split structure of the present invention;
FIG. 4 is a schematic structural view of the steel ball placement mechanism of the present invention;
FIG. 5 is a schematic diagram of the structure of the contrast state of clinical radiography according to the present invention;
fig. 6 is a second structural diagram of the clinical contrast comparison state of the present invention.
In the figure: 1. a coating mechanism; 11. coating the bottom with a plaster; 12. strip-shaped bonding cloth; 13. circular bonding hole sites; 14. double-sided gluing; 15. fastening bulges; 2. a steel ball placement mechanism; 21. a fastening groove; 22. fastening the rotary table; 23. a circular positioning point; 24. positioning the steel balls; 25. a cross bar; 26. attaching the bonding seat; 27. steel ball placing hole sites; 28. comparing the steel balls; 3. a top cover coupling mechanism; 31. an application cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a multi-steel-ball measuring structure applied to cerebrovascular interventional surgery comprises a coating mechanism 1, wherein the coating mechanism 1 comprises a bottom coating application 11, strip-shaped bonding cloths 12 are arranged at two edges of the bottom coating application 11, the back surfaces of the strip-shaped bonding cloths 12 are bonded with the radiography forehead part of a patient, the cloth of the bottom coating application 11 is made of soft textile fabric in a weaving mode, a plurality of circular bonding hole positions 13 are formed in four corners of the bottom coating application 11, double-sided adhesive 14 is bonded inside the circular bonding hole positions 13, and dustproof paper is further bonded on the surface of the double-sided adhesive 14;
the steel ball placing mechanism 2 is further supported and arranged in the middle of the top end of the bottom coating application 11, the steel ball placing mechanism 2 comprises a buckling groove 21 formed in the top of the bottom coating application 11, a buckling rotary table 22 is attached to the top of a groove position of the buckling groove 21, and a circular positioning point 23 is arranged in the circular middle of the buckling rotary table 22.
In this embodiment: the surface of circular setpoint 23 has been inlayed and has been connect with location steel ball 24, and the outside of location steel ball 24 is provided with cross rod 25, and the body of rod end department fixed mounting of cross rod 25 has laminating bonding seat 26, and the top surface of laminating bonding seat 26 corresponds respectively to be seted up a plurality of steel balls and places hole site 27, and the top that the hole site 27 was placed to the steel ball still bonds through the viscose has a plurality of specifications and sizes to compare steel ball 28 not of the same.
Through the positioning steel balls 24, the cross-shaped cross rod 25 and the laminating adhesive seat 26, medical staff can conveniently arrange a plurality of positioning steel balls 24 in an even installation mode, and the accuracy of contrast comparison of displacement promotion of steel ball positions in the detection process is avoided.
In this embodiment: wherein compare the periphery that the steel ball 28 was located laminating bonding seat 26, wherein a plurality of sizes diameter size of comparing steel ball 28 bond side by side with the surface of laminating bonding seat 26 in proper order, and the middle part of laminating bonding seat 26 is provided with ring form angle scale.
Through the comparison steel ball 28, the joint bonding seat 26 and the annular angle scale, a proper angle can be conveniently presented on a contrast image during comparison.
In this embodiment: the outer wall around the top of the strip-shaped bonding cloth 12 is provided with a buckling bulge 15, the middle part of the top end of the buckling bulge 15 is buckled with a top covering mechanism 3, the top covering mechanism 3 comprises an application cover 31 covering and arranged above the bottom coating application 11, and four corners of the bottom of the application cover 31 are fixedly bonded with the corners of the bonding base 26.
Through the fastening protrusion 15 and the top cover mechanism 3, the medical staff can conveniently coat the body.
In this embodiment: the size of the applicator cap 31 is larger than the inner diameter of the abutment pad 26 and matches the position of the lower abutment pad 26.
By providing a snug fit between the snug adhesive socket 26 and the applicator cap 31.
In this embodiment: the applicator cover 31 is hollow inside and detachable from the bottom cover application 11, and both the applicator cover 31 and the bottom cover application 11 are replaceable.
The application cover adopts a replaceable design, the measuring steel balls in the application cover 31 are taken out in time after use, and the updated bottom cladding application 11 is replaced.
When in specific use: firstly, medical staff prepares a plurality of comparison steel balls 28 for comparison, then the comparison steel balls 28 are sequentially arranged according to the size sequence from large to small and are placed on the surface of the joint bonding seat 26, the steel balls are placed in a buckling manner through steel ball placing hole positions 27 formed in the surface of the joint bonding seat 26, and are placed in the groove according to the size sequence of the steel ball placing hole positions 27, according to the principle of buckling in the groove, the steel balls are pressed to be firmly buckled to prevent falling after being placed in the groove, and a user connects the buckling groove 21, correspondingly placed below, of the joint bonding seat 26 again, so that the joint bonding of the joint bonding seat 26 and the bottom coating applicator 11 below is realized, and the support of the outer ring is realized through the cross rod 25;
after the installation, a user bonds the upper bonding and bonding base 26 with the bottom coating patch 11 again, and at the moment, medical personnel bonds the edge of the upper patch cover 31 with the lower bottom coating patch 11, so that an integrated coating structure is formed, and the medical personnel can use the bottom coating patch conveniently in the follow-up process;
when in use, the technology firstly selects the circular stainless steel balls with the diameter of 1.5-8mm to be arranged in a continuous circle with the increment of 0.25mm, and the stainless steel balls are placed on the body surface part which is close to the same plane position of the blood vessel or the pathological change to be measured as far as possible, and the measured value is very accurate.
The steel balls with different sizes are designed to be matched together and used during developing, medical workers tear off dustproof paper on the double-sided adhesive 14, and the leaked adhesive surface is attached to the forehead of a patient to be compared.
During cerebral angiography, in order to reduce measurement errors, the steel ball is placed at a position close to the same plane position of a pre-measured blood vessel or the same side of a pathological change, generally, the steel ball is placed at the forehead part during forward circulation pathological change positive position acquisition, and the steel ball is placed near the wing point of the same side during lateral position acquisition; for the normal position collection of the posterior circulation lesion, a steel ball is placed near the occipital tuberosity, for the lateral position collection, the steel ball is placed at the position of the back of the ear overlapped with the lesion blood vessel for measurement, a saccule and a bracket are selected according to the measurement result, in turn, in the interventional therapy process, the measurement result is evaluated according to whether the size of the saccule and the bracket with the marks selected according to the measurement result is proper, the reacted image of the steel ball is solid black, after the central point is determined, the steel ball can be compared with the blood vessel irradiated by the contrast area, the developed blood vessel can be clearly compared with the size of the steel ball, the displayed image can be convenient for the medical care personnel to visually diagnose the disease condition direction, the Digital Subtraction Angiography (DSA) is regarded as the gold standard for diagnosing the vascular diseases, therefore, the DSA image measurement technology can be correctly applied to evaluate the stenosis degree of the cerebral vessels, the method is particularly important for the interventional operation doctor to select the types of the materials such as the stent, the expansion balloon, the spring ring and the like.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made without departing from the spirit and scope of the invention.
Claims (6)
1. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation comprises a coating mechanism (1), and is characterized in that the coating mechanism (1) comprises a bottom coating application (11), strip-shaped bonding cloths (12) are arranged at two edges of the bottom coating application (11), the back surfaces of the strip-shaped bonding cloths (12) are bonded with the radiography forehead of a patient, the cloth of the bottom coating application (11) is made of a soft textile fabric in a weaving mode, a plurality of circular bonding hole sites (13) are formed in four corners of the bottom coating application (11), double-sided adhesive (14) are bonded inside the circular bonding hole sites (13), and dustproof paper is further bonded on the surface of the double-sided adhesive (14);
the steel ball placing mechanism (2) is further supported and arranged in the middle of the top end of the bottom coating application plaster (11), the steel ball placing mechanism (2) comprises a buckling groove (21) formed in the top of the bottom coating application plaster (11), a buckling rotary table (22) is attached to the top of a groove position of the buckling groove (21), and a circular positioning point (23) is arranged in the circular middle of the buckling rotary table (22).
2. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation as set forth in claim 1, wherein: the surface of circular setpoint (23) has been inlayed and has been connect location steel ball (24), the outside of location steel ball (24) is provided with cross rod (25), the body of rod end fixed mounting of cross rod (25) has laminating bonding seat (26), the top surface of laminating bonding seat (26) corresponds respectively and has been seted up a plurality of steel balls and places hole site (27), the steel ball is placed the top of hole site (27) and still has comparison steel ball (28) that a plurality of specification and dimension differ through the viscose bonding.
3. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation as set forth in claim 2, wherein: wherein compare enclosing of steel ball (28) and locate the periphery of laminating bonding seat (26), wherein a plurality of the size diameter size of comparing steel ball (28) bonds side by side with the surface of laminating bonding seat (26) in proper order, the middle part of laminating bonding seat (26) is provided with ring form angle scale.
4. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation as set forth in claim 1, wherein: the adhesive plaster is characterized in that fastening bulges (15) are arranged on the peripheral outer wall of the top of the strip-shaped adhesive cloth (12), a top covering mechanism (3) is arranged in the middle of the top end of each fastening bulge (15) in a fastening mode, each top covering mechanism (3) comprises a dressing cover (31) arranged above the bottom coating application plaster (11) in a covering mode, and four corners of the bottom of each dressing cover (31) are fixedly bonded with corners of the bonding adhesive base (26).
5. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation as set forth in claim 4, wherein: the size of the application cover (31) is larger than the inner diameter of the adhering and bonding seat (26), and the size is matched with the position of the adhering and bonding seat (26) below.
6. The multi-steel-ball measuring structure applied to the cerebrovascular interventional operation as set forth in claim 4, wherein: the application cover (31) is hollow and is detachable from the bottom coating application (11), and both the application cover (31) and the bottom coating application (11) can be replaced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121636812.7U CN214966835U (en) | 2021-07-19 | 2021-07-19 | Be applied to many steel balls of cerebrovascular intervention operation and measure structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121636812.7U CN214966835U (en) | 2021-07-19 | 2021-07-19 | Be applied to many steel balls of cerebrovascular intervention operation and measure structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN214966835U true CN214966835U (en) | 2021-12-03 |
Family
ID=79127606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121636812.7U Expired - Fee Related CN214966835U (en) | 2021-07-19 | 2021-07-19 | Be applied to many steel balls of cerebrovascular intervention operation and measure structure |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN214966835U (en) |
-
2021
- 2021-07-19 CN CN202121636812.7U patent/CN214966835U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20120184860A1 (en) | Pulse Diagnosis Instrument | |
JP2002535062A (en) | Apparatus and method for accurate placement of biomedical sensors | |
US3525330A (en) | Surgical garment prescription method and apparatus | |
CN214966835U (en) | Be applied to many steel balls of cerebrovascular intervention operation and measure structure | |
CN209574677U (en) | A kind of blood pressure detector of clinical application | |
CN109431516B (en) | Cervical vertebra mobility measuring equipment and cervical vertebra mobility measuring method | |
CN213787387U (en) | Magnetic resonance body surface positioning device | |
CN213642756U (en) | Gauge length seal wire | |
CN210902957U (en) | Eye-protrusion measuring device convenient for judging whether eye-protrusion degree is normal or not | |
CN211633256U (en) | Cardiovascular internal medicine nursing blood pressure monitor | |
CN217138202U (en) | Universal CT puncture locator | |
US7647649B2 (en) | Body-worn article functioning as a positioning device allowing patient positioning relative to medical therapy or examination device | |
CN111150498A (en) | Accurate positioning method and positioning film for affected part in CT scanning and minimally invasive surgery | |
CN215839090U (en) | Electrode plate wearing device | |
CN112971732A (en) | Intelligent underwear capable of early warning breast tumors | |
CN211534869U (en) | Peripheral blood vessel intervenes operation with combination formula measurement scale | |
CN206714766U (en) | A kind of body surface marking band of hepatic fat content QCT measurements | |
CN213963360U (en) | Bed board assembly of cardiovascular magnetic resonance imaging equipment | |
CN208552053U (en) | A kind of lower soft tissue biopsy positioning device of CT/MRI guidance | |
CN217246292U (en) | Spot-shaped marking structure for tumor radiotherapy | |
CN110432880A (en) | Disposable sphygmomanometer cuff | |
CN116831587B (en) | Electrocardiogram electrode sheet and electrocardiograph monitoring device | |
CN210582671U (en) | Fixing device for puncture patient | |
CN212940089U (en) | Smart mobile phone is from survey module vertebra side bend mould | |
CN208958125U (en) | A kind of calf circumference measurement apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
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: 20211203 |