CN112516411A - Hypodermic indwelling needle with good sealing performance - Google Patents
Hypodermic indwelling needle with good sealing performance Download PDFInfo
- Publication number
- CN112516411A CN112516411A CN202011270384.0A CN202011270384A CN112516411A CN 112516411 A CN112516411 A CN 112516411A CN 202011270384 A CN202011270384 A CN 202011270384A CN 112516411 A CN112516411 A CN 112516411A
- Authority
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- China
- Prior art keywords
- plate
- plastic
- fixedly connected
- inner chamber
- fixed pipe
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 58
- 239000004033 plastic Substances 0.000 claims abstract description 58
- 238000004023 plastic welding Methods 0.000 claims description 2
- 238000007920 subcutaneous administration Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a subcutaneous indwelling needle with good sealing performance, which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with positioning plates, a plastic shell is arranged between the two positioning plates, an inner cavity of the plastic shell is provided with a containing groove, an inner cavity of the containing groove is provided with a sealing cushion, an inner cavity of the plastic shell is provided with a wedge-shaped part, and the bottom of the wedge-shaped part is communicated with an indwelling hose. The invention has the advantages of good sealing performance and convenient disassembly and assembly with the support plate by matching the bottom plate, the positioning plate, the plastic shell, the containing tank, the sealing cushion, the wedge-shaped part and the indwelling hose, and solves the problems that the existing subcutaneous indwelling needle has a single structure, is easy to cause low self-sealing performance in the processing process, causes untight connection between the sealing gasket and the shell, is not beneficial to the disassembly and assembly between the indwelling needle and the support plate and is inconvenient for people to use.
Description
Technical Field
The invention relates to the technical field of subcutaneous indwelling needles, in particular to a subcutaneous indwelling needle with good sealing performance.
Background
At present, use the hypodermic needle of keeping somewhere in clinical aspect, the insulin injection that is used for diabetes patient mostly, because patient needs long-time injection medicine, current hypodermic needle of keeping somewhere single structure, cause self leakproofness low easily in the course of working, make to be connected inseparably between sealed pad and the casing, be unfavorable for the dismouting of keeping somewhere between needle and the backup pad simultaneously, people's use of being not convenient for.
Disclosure of Invention
In view of the above, the present invention provides a hypodermic needle with good sealing performance, which has good sealing performance.
The invention provides the following technical scheme:
the utility model provides a needle is kept somewhere under skin that leakproofness is good, comprising a base plate, the top fixedly connected with locating plate of bottom plate is provided with plastic casing between the locating plate, the holding tank has been seted up to plastic casing's inner chamber, the inner chamber of holding tank is provided with sealed cushion, plastic casing's inner chamber is provided with the wedge part, the bottom intercommunication of wedge part has the hose of keeping somewhere, the bottom of keeping somewhere the hose runs through plastic casing and bottom plate in proper order.
Optionally, the top of plastic casing is equipped with the back-off structure, the back-off structure compresses tightly sealed cushion in the holding tank, the through-hole has been seted up at the top of plastic casing.
Optionally, a plastic end cover is arranged on the upper portion of the plastic shell, a through hole is formed in the top of the plastic end cover, the top of the plastic shell is communicated with the through hole, and the plastic end cover and the plastic shell are fixed through plastic welding.
Optionally, the left side of locating plate is run through and is provided with fixed pipe, the right side in fixed inside pipe chamber is provided with the limiting plate, the left side fixedly connected with pull rod of limiting plate, the left end of pull rod runs through to the left side of fixed pipe, the pot head that the pull rod is located fixed inside pipe chamber is equipped with the spring, the right side fixedly connected with gag lever post of limiting plate, the right-hand member of gag lever post runs through fixed pipe and locating plate in proper order and extends to the right side of locating plate, the bottom and the plastic casing contact of gag lever post.
Optionally, the right side of the limiting plate is in contact with the right side of the inner cavity of the fixed pipe, the left side of the limiting plate is fixedly connected with the spring, and the left end of the spring is fixedly connected with the left side of the inner cavity of the fixed pipe.
Optionally, the left end of the pull rod is fixedly connected with a pull plate, and the surface of the pull plate is provided with anti-skid grains.
Optionally, the bottom of the opposite side of the positioning plate is fixedly connected with a guide block, and the bottom of the guide block is fixedly connected with the top of the bottom plate.
Optionally, the surface of the wedge-shaped member is fixedly connected with the inner wall of the plastic housing, and the surface of the indwelling hose is fixedly connected with the surface of the plastic housing.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages of good sealing performance and convenient disassembly and assembly with the support plate by matching the bottom plate, the positioning plate, the plastic shell, the containing tank, the sealing cushion, the wedge-shaped part and the indwelling hose, and solves the problems that the existing subcutaneous indwelling needle has a single structure, is easy to cause low self-sealing performance in the processing process, causes untight connection between the sealing gasket and the shell, is not beneficial to the disassembly and assembly between the indwelling needle and the support plate and is inconvenient for people to use.
According to the invention, the inverted buckle structure is arranged, the connection tightness of the sealing cushion at the top of the remaining needle is enhanced, the spring is arranged to produce tension on the limiting plate, the limiting plate is promoted to push the limiting rod, the plastic shell can be positioned and fixed, the limiting rod is convenient to return, the pulling plate is arranged, the limiting plate is convenient to drive to move, so that the limiting rod is driven to move, the guide block is arranged, the bottom of the plastic shell can be guided, and the bottom of the plastic shell can conveniently penetrate through the bottom plate.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;
FIG. 3 is a schematic sectional view of a portion of the present invention;
FIG. 4 is a schematic sectional view of a portion of the present invention;
FIG. 5 is a partial structural schematic diagram of the present invention.
In the figure: 1 bottom plate, 2 locating plates, 3 plastic casing, 4 holding tanks, 5 sealed cushions, 6 wedge parts, 7 hose, 8 back-off structures, 9 fixed pipes, 10 limiting plates, 11 pull rods, 12 springs, 13 limiting rods, 14 pull plates, 15 guide blocks of keeping somewhere.
Detailed Description
In the embodiment of the invention, referring to fig. 1-5, a hypodermic indwelling needle with good sealing performance comprises a bottom plate 1, a positioning plate 2 is fixedly connected to the top of the bottom plate 1, a plastic shell 3 is arranged between the positioning plates 2, an accommodating groove 4 is formed in an inner cavity of the plastic shell 3, a sealing cushion 5 is arranged in the inner cavity of the accommodating groove 4, a wedge-shaped part 6 is arranged in the inner cavity of the plastic shell 3, an indwelling hose 7 is communicated with the bottom of the wedge-shaped part 6, the bottom of the indwelling hose 7 sequentially penetrates through the plastic shell 3 and the bottom plate 1, an inverted buckle structure 8 is arranged at the top of the plastic shell 3, the sealing cushion 5 is tightly pressed in the accommodating groove 4 by the inverted buckle structure 8, a through hole is formed in the top of the plastic shell 3, the inverted buckle structure 8 is fixedly welded with the plastic shell 3, a fixing tube 9 is arranged on the left side of, the left side fixedly connected with pull rod 11 of limiting plate 10, the left end of pull rod 11 runs through to the left side of fixed pipe 9, and the pot head that pull rod 11 is located fixed pipe 9 inner chamber is equipped with spring 12, and the right side fixedly connected with gag lever post 13 of limiting plate 10, the right-hand member of gag lever post 13 run through fixed pipe 9 and locating plate 2 in proper order and extend to the right side of locating plate 2, and the bottom and the 3 contacts of plastic casing of gag lever post 13.
The right side of the limiting plate 10 is in contact with the right side of the inner cavity of the fixed tube 9, the left side of the limiting plate 10 is fixedly connected with the spring 12, and the left end of the spring 12 is fixedly connected with the left side of the inner cavity of the fixed tube 9.
The left end of the pull rod 11 is fixedly connected with a pull plate 14, and the surface of the pull plate 14 is provided with anti-skid grains.
The bottom of the opposite side of the positioning plate 2 is fixedly connected with a guide block 15, and the bottom of the guide block 15 is fixedly connected with the top of the bottom plate 1.
The surface of the wedge-shaped part 6 is fixedly connected with the inner wall of the plastic shell 3, and the surface of the indwelling hose 7 is fixedly connected with the surface of the plastic shell 3.
Through setting up back-off structure 8, the leakproofness that needle top sealing cushion 5 is connected is kept somewhere in the reinforcing, through setting up spring 12 to limiting plate 10 output tension, makes limiting plate 10 promote gag lever post 13, can fix a position fixedly plastic casing 3, the return of the gag lever post 13 of being convenient for.
Through setting up arm-tie 14, be convenient for drive limiting plate 10 and remove to drive gag lever post 13 and remove, through setting up guide block 15, can lead the bottom of plastic casing 3, the bottom of the plastic casing 3 of being convenient for runs through bottom plate 1.
Through bottom plate 1, locating plate 2, plastic casing 3, holding tank 4, sealed cushion 5, wedge part 6 and keep somewhere hose 7 and cooperate, it is good to possess the leakproofness, be convenient for and carry out the advantage of dismouting between the backup pad, current subcutaneous needle single structure of keeping somewhere has been solved, it is low to cause self leakproofness easily in the course of working, it is inseparable to make to be connected between sealed pad and the casing, be unfavorable for simultaneously keeping somewhere the dismouting between needle and the backup pad, the problem that people used not convenient for.
During the use, plastic casing 3 and 8 hot pressing modes that make plastics produce deformation through ultrasonic bonding make 5 fixed clamp of sealed cushion realize sealedly with back-off structure, 3 inner chambers of plastic casing are advanced in 6 tops of wedge part, will keep somewhere hose 7 extrusion seal, when dismantling and keep somewhere the needle, pulling arm-tie 14 left side drives pull rod 11 and removes left, pull rod 11 drives limiting plate 10 and removes left, limiting plate 10 drives gag lever post 13 and removes left, make gag lever post 13 keep away from plastic casing 3, rebound plastic casing 3, will keep somewhere the needle and dismantle and separate with bottom plate 1.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a needle is kept somewhere under skin that leakproofness is good, includes bottom plate (1), its characterized in that: the top fixedly connected with locating plate (2) of bottom plate (1), be provided with plastic casing (3) between locating plate (2), holding tank (4) have been seted up to the inner chamber of plastic casing (3), the inner chamber of holding tank (4) is provided with sealed cushion (5), the inner chamber of plastic casing (3) is provided with wedge part (6), the bottom intercommunication of wedge part (6) has and keeps somewhere hose (7), the bottom of keeping somewhere hose (7) runs through plastic casing (3) and bottom plate (1) in proper order.
2. The hypodermic needle as claimed in claim 1, wherein: the top of plastic casing (3) is equipped with back-off structure (8), back-off structure (8) compress tightly sealed cushion (5) in holding tank (4), the through-hole has been seted up at the top of plastic casing (3).
3. The hypodermic needle as claimed in claim 1, wherein: the plastic end cover (8) is arranged on the upper portion of the plastic shell (3), a through hole is formed in the top of the plastic end cover, the top of the plastic shell (3) is communicated with the through hole, and the plastic end cover and the plastic shell (3) are fixed through plastic welding.
4. The hypodermic needle as claimed in claim 1, wherein: the left side of locating plate (2) is run through and is provided with fixed pipe (9), the right side of fixed pipe (9) inner chamber is provided with limiting plate (10), the left side fixedly connected with pull rod (11) of limiting plate (10), the left end of pull rod (11) runs through to the left side of fixed pipe (9), a pot head that pull rod (11) is located fixed pipe (9) inner chamber is equipped with spring (12), the right side fixedly connected with gag lever post (13) of limiting plate (10), the right-hand member of gag lever post (13) runs through fixed pipe (9) and locating plate (2) in proper order and extends to the right side of locating plate (2), the bottom and the contact of plastic casing (3) of gag lever post (13).
5. The hypodermic needle as claimed in claim 3, wherein: the right side of limiting plate (10) and the right side contact of fixed pipe (9) inner chamber, the left side and spring (12) fixed connection of limiting plate (10), the left end and the left side fixed connection of fixed pipe (9) inner chamber of spring (12).
6. The hypodermic needle as claimed in claim 3, wherein: the left end of the pull rod (11) is fixedly connected with a pull plate (14), and anti-skid grains are arranged on the surface of the pull plate (14).
7. The hypodermic needle as claimed in claim 1, wherein: the bottom of the opposite side of the positioning plate (2) is fixedly connected with a guide block (15), and the bottom of the guide block (15) is fixedly connected with the top of the bottom plate (1).
8. The hypodermic needle as claimed in claim 1, wherein: the surface of the wedge-shaped part (6) is fixedly connected with the inner wall of the plastic shell (3), and the surface of the retaining hose (7) is fixedly connected with the surface of the plastic shell (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011270384.0A CN112516411A (en) | 2020-11-13 | 2020-11-13 | Hypodermic indwelling needle with good sealing performance |
| PCT/CN2021/130215 WO2022100681A1 (en) | 2020-11-13 | 2021-11-12 | Subcutaneous indwelling needle having good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011270384.0A CN112516411A (en) | 2020-11-13 | 2020-11-13 | Hypodermic indwelling needle with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112516411A true CN112516411A (en) | 2021-03-19 |
Family
ID=74982490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011270384.0A Pending CN112516411A (en) | 2020-11-13 | 2020-11-13 | Hypodermic indwelling needle with good sealing performance |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112516411A (en) |
| WO (1) | WO2022100681A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022100681A1 (en) * | 2020-11-13 | 2022-05-19 | 微泰医疗器械(杭州)股份有限公司 | Subcutaneous indwelling needle having good sealing performance |
| WO2023142737A1 (en) * | 2022-01-26 | 2023-08-03 | 微泰医疗器械(杭州)股份有限公司 | Waterproof indwelling needle system and method for using same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101715353A (en) * | 2007-05-07 | 2010-05-26 | 优诺医疗有限公司 | Cannula and delivery device |
| CN101808679A (en) * | 2007-08-01 | 2010-08-18 | 梅丁格有限公司 | Device for facilitating infusion of therapeutic fluids and detection of in vivo analytes |
| CN101939033A (en) * | 2008-02-08 | 2011-01-05 | 优诺医疗有限公司 | Insert Components |
| CN102026677A (en) * | 2007-10-16 | 2011-04-20 | 瑟丘尔股份有限公司 | Cannula insertion device and related methods |
| CN103384540A (en) * | 2011-02-09 | 2013-11-06 | 犹诺医药有限公司 | Removal of cannula part from base part |
| CN104548280A (en) * | 2013-10-14 | 2015-04-29 | 美敦力迷你迈德公司 | Therapeutic agent injection device |
| CN205598349U (en) * | 2016-03-29 | 2016-09-28 | 美敦力公司 | A apparatus is kept somewhere to skin table for guiding puncture |
| CN107961417A (en) * | 2017-12-28 | 2018-04-27 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline structure |
| CN107998480A (en) * | 2017-12-28 | 2018-05-08 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline and its method for exhausting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090037492A (en) * | 2006-08-02 | 2009-04-15 | 우노메디컬 에이/에스 | Cannula and Drug Delivery Device |
| US8303545B2 (en) * | 2007-09-07 | 2012-11-06 | Stat Medical Devices, Inc. | Infusion device and method of using and making the same |
| US8795230B2 (en) * | 2010-11-30 | 2014-08-05 | Becton, Dickinson And Company | Adjustable height needle infusion device |
| CN103007376A (en) * | 2013-01-17 | 2013-04-03 | 无锡顶点医疗器械有限公司 | Insulin pump infusion device |
| CN112516411A (en) * | 2020-11-13 | 2021-03-19 | 微泰医疗器械(杭州)有限公司 | Hypodermic indwelling needle with good sealing performance |
-
2020
- 2020-11-13 CN CN202011270384.0A patent/CN112516411A/en active Pending
-
2021
- 2021-11-12 WO PCT/CN2021/130215 patent/WO2022100681A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101715353A (en) * | 2007-05-07 | 2010-05-26 | 优诺医疗有限公司 | Cannula and delivery device |
| CN101808679A (en) * | 2007-08-01 | 2010-08-18 | 梅丁格有限公司 | Device for facilitating infusion of therapeutic fluids and detection of in vivo analytes |
| CN102026677A (en) * | 2007-10-16 | 2011-04-20 | 瑟丘尔股份有限公司 | Cannula insertion device and related methods |
| CN101939033A (en) * | 2008-02-08 | 2011-01-05 | 优诺医疗有限公司 | Insert Components |
| CN103384540A (en) * | 2011-02-09 | 2013-11-06 | 犹诺医药有限公司 | Removal of cannula part from base part |
| CN104548280A (en) * | 2013-10-14 | 2015-04-29 | 美敦力迷你迈德公司 | Therapeutic agent injection device |
| CN205598349U (en) * | 2016-03-29 | 2016-09-28 | 美敦力公司 | A apparatus is kept somewhere to skin table for guiding puncture |
| CN107961417A (en) * | 2017-12-28 | 2018-04-27 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline structure |
| CN107998480A (en) * | 2017-12-28 | 2018-05-08 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline and its method for exhausting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022100681A1 (en) * | 2020-11-13 | 2022-05-19 | 微泰医疗器械(杭州)股份有限公司 | Subcutaneous indwelling needle having good sealing performance |
| WO2023142737A1 (en) * | 2022-01-26 | 2023-08-03 | 微泰医疗器械(杭州)股份有限公司 | Waterproof indwelling needle system and method for using same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022100681A1 (en) | 2022-05-19 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.108, Liuze street, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Weitai medical device (Hangzhou) Co.,Ltd. Address before: No.108, Liuze street, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: MICROTECH MEDICAL (HANGZHOU) Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |
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| RJ01 | Rejection of invention patent application after publication |