CN104194008B - 一种交联透明质酸凝胶微粒及其制备方法 - Google Patents
一种交联透明质酸凝胶微粒及其制备方法 Download PDFInfo
- Publication number
- CN104194008B CN104194008B CN201410389983.2A CN201410389983A CN104194008B CN 104194008 B CN104194008 B CN 104194008B CN 201410389983 A CN201410389983 A CN 201410389983A CN 104194008 B CN104194008 B CN 104194008B
- Authority
- CN
- China
- Prior art keywords
- hyaluronic acid
- cross
- linked
- solution
- gel
- 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
- 229920002674 hyaluronan Polymers 0.000 title claims abstract description 193
- 229960003160 hyaluronic acid Drugs 0.000 title claims abstract description 170
- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 title claims abstract description 147
- 238000002360 preparation method Methods 0.000 title claims description 22
- 238000004132 cross linking Methods 0.000 claims abstract description 78
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 24
- 230000003179 granulation Effects 0.000 claims abstract description 20
- 238000005469 granulation Methods 0.000 claims abstract description 20
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 239000000499 gel Substances 0.000 claims description 83
- 239000000243 solution Substances 0.000 claims description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 230000007935 neutral effect Effects 0.000 claims description 32
- KIUKXJAPPMFGSW-MNSSHETKSA-N hyaluronan Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)C1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H](C(O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-MNSSHETKSA-N 0.000 claims description 23
- 229940099552 hyaluronan Drugs 0.000 claims description 23
- 239000000017 hydrogel Substances 0.000 claims description 23
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 19
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical class [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 12
- 239000012670 alkaline solution Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 230000008961 swelling Effects 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 8
- 108010025899 gelatin film Proteins 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000872 buffer Substances 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 7
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 7
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- -1 glycidol ethers Chemical class 0.000 claims description 5
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 235000021317 phosphate Nutrition 0.000 claims description 5
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 4
- SYEWHONLFGZGLK-UHFFFAOYSA-N 2-[1,3-bis(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COCC(OCC1OC1)COCC1CO1 SYEWHONLFGZGLK-UHFFFAOYSA-N 0.000 claims description 4
- KUAUJXBLDYVELT-UHFFFAOYSA-N 2-[[2,2-dimethyl-3-(oxiran-2-ylmethoxy)propoxy]methyl]oxirane Chemical compound C1OC1COCC(C)(C)COCC1CO1 KUAUJXBLDYVELT-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 4
- 239000008363 phosphate buffer Substances 0.000 claims description 4
- 239000008055 phosphate buffer solution Substances 0.000 claims description 4
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims 2
- 235000009508 confectionery Nutrition 0.000 claims 2
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical class [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000502 dialysis Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 abstract description 5
- 210000004872 soft tissue Anatomy 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 54
- 239000002245 particle Substances 0.000 description 26
- 238000006731 degradation reaction Methods 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 238000001727 in vivo Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000004971 Cross linker Substances 0.000 description 7
- 238000009738 saturating Methods 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 238000007920 subcutaneous administration Methods 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 239000008366 buffered solution Substances 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical compound [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 2
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 2
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005297 material degradation process Methods 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 235000015096 spirit Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 108010003272 Hyaluronate lyase Proteins 0.000 description 1
- 102000001974 Hyaluronidases Human genes 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 201000010251 cutis laxa Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229960002773 hyaluronidase Drugs 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- QLFFCLRSMTUBEZ-UHFFFAOYSA-N phosphoric acid;sodium Chemical compound [Na].[Na].OP(O)(O)=O QLFFCLRSMTUBEZ-UHFFFAOYSA-N 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000004927 skin cell Anatomy 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410389983.2A CN104194008B (zh) | 2014-08-08 | 2014-08-08 | 一种交联透明质酸凝胶微粒及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410389983.2A CN104194008B (zh) | 2014-08-08 | 2014-08-08 | 一种交联透明质酸凝胶微粒及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104194008A CN104194008A (zh) | 2014-12-10 |
CN104194008B true CN104194008B (zh) | 2017-09-15 |
Family
ID=52079396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410389983.2A Expired - Fee Related CN104194008B (zh) | 2014-08-08 | 2014-08-08 | 一种交联透明质酸凝胶微粒及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104194008B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI727014B (zh) | 2016-03-24 | 2021-05-11 | 德商梅茲製藥有限兩合公司 | 修飾透明質酸與其製造方法及其用途 |
CN106589424B (zh) * | 2016-12-12 | 2020-06-02 | 华熙生物科技股份有限公司 | 一种注射用交联透明质酸凝胶及其制备方法 |
CN109810264B (zh) * | 2018-12-03 | 2021-08-06 | 浙江景嘉医疗科技有限公司 | 一种低改性的高粘度透明质酸凝胶及其制备方法和应用 |
CN109531857B (zh) * | 2019-01-02 | 2020-11-06 | 华熙生物科技股份有限公司 | 一种透明质酸或其盐颗粒的制备方法及所得产品 |
CN115721615B (zh) * | 2022-11-17 | 2024-08-30 | 华熙生物科技股份有限公司 | 一种透明质酸颗粒及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101538377A (zh) * | 2008-03-20 | 2009-09-23 | 上海昊海生物科技有限公司 | 一种交联透明质酸凝胶及其制备方法 |
CN101759881A (zh) * | 2008-10-08 | 2010-06-30 | 上海建华精细生物制品有限公司 | 一种医用交联透明质酸钠凝胶衍生产品及其制备方法 |
CN101721349B (zh) * | 2008-10-16 | 2011-07-20 | 常州百瑞吉生物医药有限公司 | 可注射原位交联水凝胶及其制备方法和用途 |
-
2014
- 2014-08-08 CN CN201410389983.2A patent/CN104194008B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN104194008A (zh) | 2014-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104194008B (zh) | 一种交联透明质酸凝胶微粒及其制备方法 | |
CN104258470B (zh) | 一种注射用聚乳酸微球和交联透明质酸混合凝胶及其制备方法 | |
CN103834053B (zh) | 一种可注射的交联透明质酸凝胶及其制备方法 | |
CN103990172B (zh) | 一种复合医用敷料及其制备方法 | |
CN107998449A (zh) | 一种3d打印高强度生物墨水材料 | |
KR101661353B1 (ko) | 단일 또는 이종의 피부활성성분의 공급제어 기능을 가지는 하이드로겔 마스크팩의 제조방법 | |
CN112190750B (zh) | 一种3d仿生皮肤敷料及其制备方法 | |
CN104005114B (zh) | 一种羊毛角蛋白再生纤维素纤维的制备方法 | |
CN105343926A (zh) | 一种含有纳米二氧化硅的疤痕贴及其制备方法 | |
CN108607157A (zh) | 一种可溶性交联-非交联透明质酸复合微针 | |
CN106397795B (zh) | 一种混合透明质酸凝胶及其制备方法 | |
CA3110904C (en) | Method of producing three dimensional autologous fat graft using human lipoaspirate-derived adipose tissue with multipotent stem cells and biocompatible cellulose nanofibrils | |
CN108403446A (zh) | 一种竹炭粘胶纤维面膜基布及高锁水保湿面膜 | |
CN106727042A (zh) | 一种含有珍珠提取物的嫩白补水面膜 | |
CN110982126A (zh) | 一种含透明质酸盐的组合物及其制备方法 | |
CN103418020A (zh) | 一种魔芋葡甘聚糖止血海绵及其制备方法 | |
CN114917410A (zh) | 石榴式凝胶球及其制备方法 | |
CN116966341A (zh) | 一种美容填充剂的制备方法及其应用 | |
CN103450490A (zh) | 一种以透明质酸钠为原料制备交联透明质酸钠微球凝胶的工艺 | |
CN115748249A (zh) | 重组胶原蛋白水凝胶纤维及其制备方法 | |
CN105106023A (zh) | 微针眼膜原料及其制备的微针眼膜及微针眼膜的制备方法 | |
CN104812374A (zh) | 丝质水凝胶组合物及丝质水凝胶面膜 | |
CN114618010A (zh) | 一种具有多功能的角蛋白基水凝胶及其制备方法 | |
CN109646718A (zh) | 用于微整形的再生组织基质组合物、制备及应用 | |
CN111671974A (zh) | 一种吸水诱导形状记忆性的脱细胞真皮基质组织填充物及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cross-linked hyaluronic acid gel microparticle and preparation method thereof Effective date of registration: 20180726 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: 2018610000113 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190809 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: 2018610000113 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cross-linked hyaluronic acid gel microparticle and preparation method thereof Effective date of registration: 20190809 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: Y2019980000032 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201020 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: Y2019980000032 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Crosslinked hyaluronic acid gel particle and preparation method thereof Effective date of registration: 20201021 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: Y2020980006999 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210531 Granted publication date: 20170915 Pledgee: Xianyang corporate finance Company limited by guarantee Pledgor: SHAANXI BIO REGENERATIVE MEDICINE Co.,Ltd. Registration number: Y2020980006999 |
|
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: 20170915 |