JP2020512107A - 外科手術後の切開部位の痛み軽減又は治療のためのキット - Google Patents
外科手術後の切開部位の痛み軽減又は治療のためのキット Download PDFInfo
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Abstract
Description
滅菌された場所で手術キットの包装をはがし、プランジャを備えた第1注射器に注射針を取り付け、手術時に使用する局部麻酔剤などの痛み除去薬物に注射針を差し込み、第1注射器の表示線まで痛み除去薬物を充填する第1ステップと;痛み除去薬物が充填された第1注射器と接続された注射針を取り外し、温度感応性粘性溶液が予め充填されており、プランジャを備えたプレフィルド注射器の栓を除去する第2ステップと;栓が除去されたプレフィルド注射器に注射器コネクタを接続し、痛み除去薬物が充填された第1注射器を接続する第3ステップと;注射器コネクタに互いに接続された第1注射器とプレフィルド注射器のプランジャを左右にスライドさせ、痛み除去薬物をプレフィルド注射器内の温度感応性粘性溶液と均一に混合する第4ステップと;注射器コネクタを取り外し、プレフィルド注射器に混合溶液注入誘導管を接続して、痛み除去物質の混合溶液を手術切開部位に十分注入して塗布する第5ステップと;を含むことを特徴とする。
相応しい
本発明の痛み除去薬物または治療薬物の混合溶液に含まれる温度感応性粘性溶液(温度感応性高分子30重量%含有)の架橋の有無による安定性試験の測定結果を、図6に示す。試験結果を説明すると、温度感応性高分子の含有量が25重量%以下である場合(図示せず)は、架橋された温度感応性粘性溶液の安定性が架橋されていない温度感応性粘性溶液の安定性よりもかなり高いが、温度感応性高分子の含有量が30重量%以上である場合(図6参照)は、架橋された温度感応性粘性溶液と架橋されていない温度感応性粘性溶液の安定性が、すべて7日まで維持されて差がほとんどないことが確認される。
100 混合溶液注入誘導管
200 第1注射器
201 第1注射針
202 第2注射針
300 プレフィルド注射器
301 栓
302 温度感応性粘性溶液
400 開閉手段付き注射器コネクタ
Claims (15)
- 切開部位の痛み軽減又は治療のためのキットであって、
痛み除去または治療薬物の安定化マトリックスとして使用される温度感応性粘性溶液が充填され、栓により開閉される構造を有するプレフィルド注射器(300)と;
露出された切開部位に近接して、痛み除去または治療薬物と温度感応性粘性溶液とを含む混合溶液を注入するための混合溶液注入誘導管(100)と;を備え、
前記温度感応性粘性溶液は、ポリ(エチレンオキサイド)ブロックとポリ(プロピレンオキシド)ブロックとが90:105〜50:70の比で含まれているポリ(エチレンオキサイド)/ポリ(プロピレンオキシド)/ポリ(エチレンオキサイド)トリブロック共重合体20〜40重量%と、残量の注射用水と、を含み、粘度が5℃で50〜5,000cpsであり、37℃で100,000cps以上であり、5℃で回転型レオメータにより測定した粘着力が0.8N以上であり、前記痛み除去または治療薬物は、薬物水溶液であり、前記温度感応性粘性溶液と前記薬物水溶液は、体積比が1:0.5〜40(薬物水溶液:温度感応性粘性溶液)であることを特徴とする外科手術キット。 - 前記外科手術キットは、
前記痛み除去または治療薬物の安定化マトリックスとして使用される温度感応性粘性溶液が充填され、栓により開閉される構造を有するプレフィルド注射器(300)と;
露出された切開部位に近接して、痛み除去または治療薬物と温度感応性粘性溶液とが混合された混合溶液を注入するための混合溶液注入誘導管(100)と;
前記混合溶液を準備するように、使用直前に痛み除去または治療薬物を充填するための第1注射器(200)と;
前記第1注射器および前記プレフィルド注射器にそれぞれ充填された物質を混合するための注射器コネクタ(400)と;を備えることを特徴とする請求項1に記載の外科手術キット。 - 前記外科手術キットは、前記第1注射器用注射針(201)をさらに備えることを特徴とする請求項2に記載の外科手術キット。
- 前記外科手術キットは、前記プレフィルド注射器用注射針(202)をさらに備えることを特徴とする請求項1に記載の外科手術キット。
- 前記温度感応性粘性溶液は、ポリ(エチレンオキサイド)/ポリ(プロピレンオキシド)/ポリ(エチレンオキサイド)トリブロック共重合体、アルギン酸またはアルギネート、架橋剤および注射用水で構成される非発熱性粘性溶液であることを特徴とする請求項1に記載の外科手術キット。
- 前記第1注射器は、注射針が予めセットされるかまたは使用直前に取り付けられたものであり、痛み除去または治療薬物の充填後に注射針が取り外されることを特徴とする請求項2に記載の外科手術キット。
- 前記混合溶液注入誘導管は、プレフィルド注射器内で混合された混合溶液を切開部位に注入するように、前記プレフィルド注射器に取り付けられて使用されることを特徴とする請求項1に記載の外科手術キット。
- 前記注射器コネクタは、内径が12mm以下であることを特徴とする請求項2に記載の外科手術キット。
- 前記切開部位周辺の残りの水分を吸収して除去するための吸収手段をさらに備えることを特徴とする請求項1に記載の外科手術キット。
- 前記温度感応性粘性溶液と前記薬物水溶液は、体積比が1:2〜5(薬物水溶液:温度感応性粘性溶液)であることを特徴とする請求項1に記載の外科手術キット。
- 前記温度感応性粘性溶液は、前記トリブロック共重合体を30〜40重量%で含み、架橋剤、アルギン酸および/またはアルギネートを含まないことを特徴とする請求項1に記載の外科手術キット。
- 前記温度感応性粘性溶液は、ポリ(エチレンオキサイド)ブロックとポリ(プロピレンオキシド)ブロックとが90:105〜50:70の比で含まれているポリ(エチレンオキサイド)/ポリ(プロピレンオキシド)/ポリ(エチレンオキサイド)トリブロック共重合体20〜40重量%と、架橋剤0.005〜0.1重量%と、アルギン酸またはアルギネート0.05〜3重量%と、注射用水と、を含むことを特徴とする請求項1に記載の外科手術キット。
- 切開部位の痛み軽減又は治療のためのキットの使用方法であって、
第1注射器(200)に注射針を取り付け、手術時に使用する痛み除去または治療薬物に注射針を差し込み、第1注射器の表示線まで前記薬物を充填した後、接続された注射針を取り外すステップと;
温度感応性粘性溶液が予め充填されており、プランジャを備えたプレフィルド注射器(300)の栓を除去するステップと;
栓が除去されたプレフィルド注射器を注射器コネクタ(400)の一方の側に接続するステップと;
前記薬物が充填され、注射針が取り外された第1注射器を注射器コネクタの他方の側に接続するステップと;
注射器コネクタにより連通した第1注射器とプレフィルド注射器のプランジャ(ピストン)を用いて、前記薬物をプレフィルド注射器内で温度感応性粘性溶液と混合するステップと;
前記混合後、注射器コネクタから、混合溶液が充填されたプレフィルド注射器を取り外し、このプレフィルド注射器に混合溶液注入誘導管または注射針を嵌合し、前記混合溶液を手術切開部位に注入して塗布するステップと;を含み、
前記温度感応性粘性溶液は、ポリ(エチレンオキサイド)ブロックとポリ(プロピレンオキシド)ブロックとが90:105〜50:70の比で含まれているポリ(エチレンオキサイド)/ポリ(プロピレンオキシド)/ポリ(エチレンオキサイド)トリブロック共重合体20〜40重量%と、残量の注射用水と、を含み、粘度が5℃で50〜5,000cpsであり、37℃で100,000cps以上であり、5℃で回転型レオメータにより測定した粘着力が0.8N以上であり、前記痛み除去または治療薬物は、薬物水溶液であり、前記温度感応性粘性溶液と前記薬物水溶液は、体積比が1:0.5〜40(薬物水溶液:温度感応性粘性溶液)であることを特徴とする手術キットの使用方法。 - 前記混合溶液を手術切開部位に注入するに先立って、手術時に使用された洗浄液を吸引サクションにより吸引して除去するステップをさらに含むことを特徴とする請求項13に記載の手術キットの使用方法。
- 切開部位の痛み軽減又は治療のためのキットであって、
痛み除去または治療薬物の安定化マトリックスとして使用される温度感応性粘性溶液が充填され、栓により開閉される構造を有するプレフィルド注射器(300)と;
露出された切開部位に近接して、痛み除去または治療薬物と温度感応性粘性溶液とを含む混合溶液を注入するための混合溶液注入誘導管(100)と;
前記混合溶液を準備するように、使用直前に痛み除去または治療薬物を充填するための第1注射器(200)と;
前記第1注射器および前記プレフィルド注射器にそれぞれ充填された物質を混合するための注射器コネクタ(400)と;
第1注射器用注射針(201)と;を備え、
前記温度感応性粘性溶液は、5℃での粘度が50〜5,000cpsであり、37℃での粘度が100,000cps以上である溶液であることを特徴とする外科手術キット。
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