JP7267881B2 - 生体インプラント - Google Patents
生体インプラント Download PDFInfo
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- JP7267881B2 JP7267881B2 JP2019165593A JP2019165593A JP7267881B2 JP 7267881 B2 JP7267881 B2 JP 7267881B2 JP 2019165593 A JP2019165593 A JP 2019165593A JP 2019165593 A JP2019165593 A JP 2019165593A JP 7267881 B2 JP7267881 B2 JP 7267881B2
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- Prior art keywords
- coating
- calcium phosphate
- particles
- bioimplant
- silver
- 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.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
- A61L27/32—Phosphorus-containing materials, e.g. apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/082—Inorganic materials
- A61L31/086—Phosphorus-containing materials, e.g. apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
- A61L2300/63—Crystals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/02—Methods for coating medical devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/04—Coatings containing a composite material such as inorganic/organic, i.e. material comprising different phases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/06—Coatings containing a mixture of two or more compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/24—Materials or treatment for tissue regeneration for joint reconstruction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/38—Materials or treatment for tissue regeneration for reconstruction of the spine, vertebrae or intervertebral discs
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Dermatology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biomedical Technology (AREA)
- Inorganic Chemistry (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Plasma & Fusion (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- Materials For Medical Uses (AREA)
Description
以下、実施形態の生体インプラント1について、図面を用いて詳細に説明する。但し、以下で参照する図は、説明の便宜上、実施形態を説明する上で必要な構成のみを簡略化して示したものである。したがって、生体インプラント1は、参照する図に示されていない任意の構成を備え得る。また、図中の構成の寸法は、実際の構成の寸法及び寸法比率などを忠実に表したものではない。
次に、実施形態の生体インプラントの製造方法について、フレーム溶射法を用いて生体インプラント1を製造する場合を例に挙げて説明する。
液量:5~7ml/cm2
温度:130~155℃
時間:11~25時間
<試験片の作製>
まず、50mm×50mm×2mmのチタン板を準備した。次に、酸化銀を3質量%及びHAを97質量%の割合で含むHA粉末を溶射材料とし、この溶射材料をチタン板の片面にフレーム溶射法で溶射し、厚さ30μmの銀HA溶射被膜を形成した。最後に、銀HA溶射被膜に水熱処理を施して試験片を得た。
液量:6ml/cm2
温度:135℃
時間:24時間
結晶化度:91%
水熱処理を以下に示す条件で行った以外は、実施例1と同様にして試験片を得た。
液量:6ml/cm2
温度:150℃
時間:24時間
結晶化度:100%
水熱処理に代えて、真空熱処理を銀HA溶射被膜に施した以外は、実施例1と同様にして試験片を得た。真空熱処理は、真空炉内において以下の条件で行った。
温度:650℃
時間:3時間
結晶化度:75%
実施例2及び比較例1について、カルシウム溶出量を測定した。また、実施例1及び比較例1について、銀溶出量を測定するとともに、抗菌試験を行った。各測定方法及び結果を以下に示す。
37℃及びpH7.3のトリス緩衝液中に試験片を浸漬した。そして、表1に示す時間毎にトリス緩衝液中のカルシウム濃度(mg/L)を、ICP質量分析法を用いて測定した。その結果を表1に示す。
37℃の牛血清中に試験片を浸漬した。そして、表2に示す時間毎に牛血清中の銀濃度(mg/L)を、ICP質量分析法を用いて測定した。その結果を表2に示す。
JIS Z 2801に準拠したフィルム密着法で抗菌活性値(R値)を測定した。試験条件は、以下のとおりである。
菌種:MRSA/UOEH6
培地:非働化牛血清
抗菌活性値
実施例1:0.5
比較例1:3.6
2・・・基体
3・・・リン酸カルシウム被膜
4・・・リン酸カルシウム粒子
41・・・リン酸カルシウム第1粒子
42・・・リン酸カルシウム第2粒子
5・・・針状結晶
Claims (8)
- 基体と、
前記基体の表面に位置し、銀を含むリン酸カルシウム被膜と、を備え、
前記リン酸カルシウム被膜の結晶化度が、90%を超えるとともに、
前記リン酸カルシウム被膜は、
その表面に位置する複数のリン酸カルシウム粒子と、
前記複数のリン酸カルシウム粒子の表面に位置する複数の針状結晶と、を有し、
前記複数の針状結晶が、前記複数のリン酸カルシウム粒子のうち互いに隣接するリン酸カルシウム粒子の界面の間隙を被覆している、生体インプラント。 - 基体と、
前記基体の表面に位置し、銀を含むリン酸カルシウム被膜と、を備え、
前記リン酸カルシウム被膜の結晶化度が、90%を超えるとともに、
前記リン酸カルシウム被膜は、その内部に位置する樹枝状結晶を有する、生体インプラント。 - 前記リン酸カルシウム被膜の厚さが、5~300μmである、請求項1または2に記載の生体インプラント。
- 前記リン酸カルシウム被膜が、ハイドロキシアパタイト、α-第3リン酸カルシウム、β-第3リン酸カルシウム、第4リン酸カルシウムのいずれか1つ以上を含んでいる、請求項1または2に記載の生体インプラント。
- 前記リン酸カルシウム粒子の粒径は、0.5~100μmである、請求項1に記載の生体インプラント。
- 前記針状結晶は、長軸が0.1~50μm、短軸が0.001~10μmである、請求項1に記載の生体インプラント。
- 前記基体が、金属、セラミックス、プラスチックのいずれか1つを含む、請求項1または2に記載の生体インプラント。
- 人工骨、内固定具、人工関節、人工歯根のいずれかである、請求項1または2に記載の生体インプラント。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019165593A JP7267881B2 (ja) | 2019-09-11 | 2019-09-11 | 生体インプラント |
PCT/JP2020/033973 WO2021049494A1 (ja) | 2019-09-11 | 2020-09-08 | 生体インプラント、および生体インプラントの製造方法 |
US17/641,072 US20220339318A1 (en) | 2019-09-11 | 2020-09-08 | Biocompatible implant and method of manufacturing biocompatible implant |
EP20862738.0A EP4029538A4 (en) | 2019-09-11 | 2020-09-08 | BIOCOMPATIBLE IMPLANT AND METHOD FOR PREPARING A BIOCOMPATIBLE IMPLANT |
JP2023068273A JP2023090761A (ja) | 2019-09-11 | 2023-04-19 | 生体インプラントの製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019165593A JP7267881B2 (ja) | 2019-09-11 | 2019-09-11 | 生体インプラント |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023068273A Division JP2023090761A (ja) | 2019-09-11 | 2023-04-19 | 生体インプラントの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021040972A JP2021040972A (ja) | 2021-03-18 |
JP7267881B2 true JP7267881B2 (ja) | 2023-05-02 |
Family
ID=74863260
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019165593A Active JP7267881B2 (ja) | 2019-09-11 | 2019-09-11 | 生体インプラント |
JP2023068273A Pending JP2023090761A (ja) | 2019-09-11 | 2023-04-19 | 生体インプラントの製造方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023068273A Pending JP2023090761A (ja) | 2019-09-11 | 2023-04-19 | 生体インプラントの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220339318A1 (ja) |
EP (1) | EP4029538A4 (ja) |
JP (2) | JP7267881B2 (ja) |
WO (1) | WO2021049494A1 (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008029612A1 (fr) | 2006-09-08 | 2008-03-13 | Japan Medical Materials Corporation | Bio-implant |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10029520A1 (de) * | 2000-06-21 | 2002-01-17 | Merck Patent Gmbh | Beschichtung für metallische Implantatmaterialien |
JP6192014B2 (ja) | 2012-02-03 | 2017-09-06 | 国立大学法人佐賀大学 | 生体インプラント |
US10814039B2 (en) * | 2012-02-03 | 2020-10-27 | Kyocera Corporation | Bioimplant with antibacterial coating and method of making same |
NL2011195C2 (en) * | 2013-07-18 | 2015-01-21 | Xpand Biotechnology B V | Method for producing an osteoinductive calcium phosphate and products thus obtained. |
US20170173213A1 (en) * | 2014-03-10 | 2017-06-22 | University Of Rochester | Polarized hydroxyapatite films and methods of making and using same |
EP3424877A4 (en) * | 2016-02-29 | 2019-11-13 | Tokyo Institute of Technology | SILVER-CONTAINING CALCIUM PHOSPHATE BODY AND PROCESS FOR PRODUCING SAME |
-
2019
- 2019-09-11 JP JP2019165593A patent/JP7267881B2/ja active Active
-
2020
- 2020-09-08 US US17/641,072 patent/US20220339318A1/en active Pending
- 2020-09-08 EP EP20862738.0A patent/EP4029538A4/en not_active Withdrawn
- 2020-09-08 WO PCT/JP2020/033973 patent/WO2021049494A1/ja unknown
-
2023
- 2023-04-19 JP JP2023068273A patent/JP2023090761A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008029612A1 (fr) | 2006-09-08 | 2008-03-13 | Japan Medical Materials Corporation | Bio-implant |
Also Published As
Publication number | Publication date |
---|---|
EP4029538A4 (en) | 2023-07-05 |
EP4029538A1 (en) | 2022-07-20 |
JP2023090761A (ja) | 2023-06-29 |
JP2021040972A (ja) | 2021-03-18 |
US20220339318A1 (en) | 2022-10-27 |
WO2021049494A1 (ja) | 2021-03-18 |
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