JP7319382B2 - 凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法、これを用いて製造された軟骨再生用組成物、軟骨再生用組成物を用いた患者オーダーメード型軟骨再生用スキャフォールドの製造方法及び患者オーダーメード型軟骨再生用スキャフォールド - Google Patents
凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法、これを用いて製造された軟骨再生用組成物、軟骨再生用組成物を用いた患者オーダーメード型軟骨再生用スキャフォールドの製造方法及び患者オーダーメード型軟骨再生用スキャフォールド Download PDFInfo
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- A61L27/3691—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment characterised by physical conditions of the treatment, e.g. applying a compressive force to the composition, pressure cycles, ultrasonic/sonication or microwave treatment, lyophilisation
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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Description
C1)2mm~3mmの細孔(pore)直径を有する第1フィルタを用いて自己脂肪組織内の繊維質を除去する段階;C2)前記繊維質が除去された自己脂肪組織を450μm~550μmの細孔(pore)直径を有する第2フィルタ、及び150μm~250μmの細孔(pore)直径を有する第3フィルタに順次的に通過させた後、その濾過物を収集して脂肪組織抽出物を収得する段階;を含むことができる。
C1)2mm~3mmの細孔(pore)直径を有する第1フィルタを用いて自己脂肪組織内の繊維質を除去する段階;C2)前記繊維質が除去された自己脂肪組織を450μm~550μmの細孔(pore)直径を有する第2フィルタ、及び150μm~250μmの細孔(pore)直径を有する第3フィルタに順次的に通過させて自己脂肪組織を粉砕する段階;及びC3)前記粉砕された自己脂肪組織を25μm~75μmの細孔(pore)直径を有する第4フィルタを通じてフィルタリングした後、前記第4フィルタに捕集された残余物を収集して脂肪組織抽出物を収得する段階;を含むことができる。
Claims (10)
- A)硝子軟骨(hyaline cartilage)を準備する段階;
B)前記硝子軟骨を凍結乾燥及び粉砕して凍結乾燥硝子軟骨パウダーを製造する段階;
C)自己脂肪組織から脂肪組織抽出物を製造する段階であって、前記脂肪組織抽出物は、自己脂肪組織から分離された間質血管分画(stromalvascular fraction)を含む、前記段階;及び
D)前記凍結乾燥硝子軟骨パウダー及び前記脂肪組織抽出物を含む軟骨再生用組成物を製造する段階を含み、
前記C)段階は、
C1)2mm~3mmの細孔(pore)直径を有する第1フィルタを用いて自己脂肪組織内の繊維質を除去する段階;
C2)前記繊維質が除去された自己脂肪組織を450μm~550μmの細孔(pore)直径を有する第2フィルタ、及び150μm~250μmの細孔(pore)直径を有する第3フィルタに順次的に通過させた後、その濾過物を収集して脂肪組織抽出物を収得する段階;及び
C3)前記粉砕された自己脂肪組織を25μm~75μm細孔(pore)直径を有する第4フィルタを通じてフィルタリングした後、前記第4フィルタに捕集された残余物を収集して脂肪組織抽出物を収得する段階;を含むことを特徴とする、凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。 - 前記D)段階は、生体用接合剤をさらに含んで混合することを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記生体用接合剤は、フィブリン糊、ゼラチン糊、シアノアクリレート系糊及びポリウレタン系糊からなる群より選択される少なくとも1種を含むことを特徴とする、請求項2に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記凍結乾燥硝子軟骨パウダーの濃度は、軟骨再生用組成物1ml当たり0.005g~0.1gであることを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記間質血管分画の濃度は、前記軟骨再生用組成物1ml当たり105個~107個であることを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記硝子軟骨は、施術対象と同種の硝子軟骨に由来したことを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記硝子軟骨は、肋軟骨(costal cartilage)に由来したことを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- 前記凍結乾燥硝子軟骨パウダーの粒径は、30μm以上300μm以下であることを特徴とする、請求項1に記載の凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物の製造方法。
- a)3Dスキャナを用いて欠損した軟骨部位の3次元データを収得し、3Dプリンタを用いてスキャフォールド用モールドを製造する段階;
b1)請求項1に記載の方法により製造した凍結乾燥硝子軟骨パウダーを用いた軟骨再生用組成物にフィブリノーゲンを混合して第1液を製造し、b2)前記第1液を前記スキャフォールド用モールド内に塗布して第1層を形成する段階;
c)トロンビンを含む第2液を前記第1層上に塗布して第2層を形成する段階;及び
d)前記第1層及び前記第2層が反応して軟骨再生用スキャフォールドを形成する段階;を含むことを特徴とする、患者オーダーメード型軟骨再生用スキャフォールドの製造方法。 - 請求項1に記載の方法により製造した凍結乾燥硝子軟骨パウダーを人体注入用注射器に充填する段階を含むことを特徴とする、軟骨再生用医療キットの製造方法。
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