JP6172832B2 - 血清または血漿分離用組成物、並びに血液採取容器 - Google Patents
血清または血漿分離用組成物、並びに血液採取容器 Download PDFInfo
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- JP6172832B2 JP6172832B2 JP2017510188A JP2017510188A JP6172832B2 JP 6172832 B2 JP6172832 B2 JP 6172832B2 JP 2017510188 A JP2017510188 A JP 2017510188A JP 2017510188 A JP2017510188 A JP 2017510188A JP 6172832 B2 JP6172832 B2 JP 6172832B2
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- serum
- composition
- plasma
- plasma separation
- silica
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Classifications
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- A61K47/6921—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere
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Description
本発明の血清または血漿分離用組成物は、常温で流動性を有する樹脂組成物を含有する。常温で流動性を有する樹脂組成物としては、(メタ)アクリル酸エステル系重合体や、石油樹脂及びトリメリット酸系可塑剤の混合物などが例示される。これらは、単独で用いてもよく、複数を併用してもよい。
本発明の血清または血漿分離用組成物は、微粉末シリカを含有する。微粉末シリカとしては、天然シリカおよび合成シリカがあり、二酸化ケイ素を主体とするものであれば特に限定されないが、例えば気相法による合成シリカが、品質が安定しているために好ましい。このような合成シリカとしては、親水性シリカと疎水性シリカが挙げられる。
本発明の血清または血漿分離用組成物は、アミド系化合物を含有する。
上記の他にも、本発明の血清または血漿分離用組成物は、血液採取容器用の分離用組成物として本発明が目的とする性能を保持できる範囲で各種成分を含んでもよい。具体的な例を挙げると、酸化防止剤、着色剤等が挙げられる。
本発明の血清または血漿分離用組成物の製造方法は特に限定されない。例えば常温で流動性を有する樹脂組成物と、微粉末シリカと、アミド系化合物とを均質に混合すればよい。混合方法については特に限定されず、プラネタリミキサー、ボールミル、ディスパーなどの公知の混練機が用いられる。
本発明に係る血液採取容器は、上記本発明に従って構成される血清または血漿分離用組成物を内部に収容してなる。
実施例1〜21、参考例1〜5及び比較例1,2において用いた、血清または血漿分離用組成物の原料組成について下記の表1に示す。また、実施例1〜21、参考例1〜5及び比較例1,2において用いた、血液採取容器の性能評価について下記の表2に示す。実施例1〜21、参考例1〜5及び比較例1,2において、血清または血漿分離用組成物の配合成分として用いた化合物は、表1に示す通りであるが、より具体的には以下の通りである。
アクリル酸−2−エチルヘキシルとアクリル酸ブチルをアゾ系重合開始剤の存在下で溶液法によりラジカル重合させ重合体を得た。上記重合体の重量平均分子量は20,000、25℃における粘度は74Pa・s、25℃における比重は1.031であった。
エクソンモービル社製、商品名「ESCOREZ5380」および「ESCOREZ5400」を使用した。
DIC社製、商品名「モノサイザーW−700(トリメリット酸トリイソオクチル)」を使用した。
親水性シリカとして、日本アエロジル社製、商品名「200CF」、疎水性シリカとして、日本アエロジル社製、商品名「R974」を使用した。
出光興産社製、商品名「エクアミドM100(3−メトキシ−N,N−ジメチルプロパンアミド)」を使用した。
新日本理化社製、商品名「ゲルオールD(ジベンジリデンソルビトール)」とBASF社製、N−メチルピロリドンを1:4の重量比で混合し、均一な溶液にして使用した。
血清または血漿分離用組成物0.5mLの、せん断速度1.0秒−1、25℃における粘度を、E型粘度計(東機産業社製、品番「TVE−35」)を用いて測定した。
血清または血漿分離用組成物1滴を、比重を0.002の間隔で段階的に調整した25℃の食塩水中に順次滴下し、食塩水中における浮沈により比重を測定した。
血液採取容器の開口端を45°斜め下向きに保持して、55℃に保温したオーブン中に24時間放置し、血清または血漿分離用組成物が、有底PET管の内壁に沿って下方に流れた距離を、ノギスを用いて測定した。
血液採取容器に、25℃比重が1.065の食塩水2.5mLを充填し、15℃水浴中で30分間冷却した後、15℃に保った遠心分離機で1700G、5分の条件で遠心分離し、上記食塩水上に形成された、血清または血漿分離用組成物による隔壁の厚みをノギスを用いて測定した。
Claims (9)
- 前記常温で流動性を有する樹脂組成物が、(メタ)アクリル酸エステル系重合体と、石油樹脂及びトリメリット酸系可塑剤の混合物とのうち少なくとも一方であることを特徴とする、請求項1に記載の血清または血漿分離用組成物。
- 前記微粉末シリカが、親水性シリカを含有することを特徴とする、請求項1または2に記載の血清または血漿分離用組成物。
- 前記親水性シリカの含有量が、1.40〜2.00重量%の範囲である、請求項3に記載の血清または血漿分離用組成物。
- 前記アミド系化合物の含有量が、0.10〜0.35重量%の範囲である、請求項1〜4のいずれか1項に記載の血清または血漿分離用組成物。
- 前記親水性シリカに加え、疎水性シリカが含有されていることを特徴とする、請求項3〜5のいずれか1項に記載の血清または血漿分離用組成物。
- 前記疎水性シリカと親水性シリカとの合算含有量が、1.40〜2.50重量%の範囲である、請求項6に記載の血清または血漿分離用組成物。
- 前記血清または血漿分離用組成物の比重が、1.038〜1.045であることを特徴とする、請求項1〜7のいずれか1項に記載の血清または血漿分離用組成物。
- 請求項1〜8のいずれか1項に記載の血清または血漿分離用組成物を内部に収容してなる、血液採取容器。
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