JP2004528880A5 - - Google Patents
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- JP2004528880A5 JP2004528880A5 JP2002570954A JP2002570954A JP2004528880A5 JP 2004528880 A5 JP2004528880 A5 JP 2004528880A5 JP 2002570954 A JP2002570954 A JP 2002570954A JP 2002570954 A JP2002570954 A JP 2002570954A JP 2004528880 A5 JP2004528880 A5 JP 2004528880A5
- Authority
- JP
- Japan
- Prior art keywords
- hydrogel
- composition
- radiopaque
- volume
- implantation site
- 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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- 239000000017 hydrogel Substances 0.000 claims 39
- 239000000203 mixture Substances 0.000 claims 21
- 238000002513 implantation Methods 0.000 claims 8
- 239000003431 cross linking reagent Substances 0.000 claims 6
- 239000003999 initiator Substances 0.000 claims 6
- 239000011148 porous material Substances 0.000 claims 6
- 229920000642 polymer Polymers 0.000 claims 5
- 239000011541 reaction mixture Substances 0.000 claims 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 4
- 125000003636 chemical group Chemical group 0.000 claims 3
- 125000000524 functional group Chemical group 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- 239000000178 monomer Substances 0.000 claims 3
- 239000002245 particle Substances 0.000 claims 3
- 239000000243 solution Substances 0.000 claims 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N Ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims 2
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N N,N'-Methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M NaHCO3 Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims 2
- KWYHDKDOAIKMQN-UHFFFAOYSA-N Tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 2
- 238000006065 biodegradation reaction Methods 0.000 claims 2
- 239000000969 carrier Substances 0.000 claims 2
- 238000004140 cleaning Methods 0.000 claims 2
- 201000010099 disease Diseases 0.000 claims 2
- -1 ice Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- 239000002904 solvent Substances 0.000 claims 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N D-sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims 1
- 229940047670 SODIUM ACRYLATE Drugs 0.000 claims 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M Sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims 1
- CZMRCDWAGMRECN-GDQSFJPYSA-N Sucrose Natural products O([C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](CO)O1)[C@@]1(CO)[C@H](O)[C@@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-GDQSFJPYSA-N 0.000 claims 1
- 239000003929 acidic solution Substances 0.000 claims 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims 1
- 125000003277 amino group Chemical group 0.000 claims 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims 1
- 125000002843 carboxylic acid group Chemical group 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 239000007943 implant Substances 0.000 claims 1
- 230000036244 malformation Effects 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 239000001103 potassium chloride Substances 0.000 claims 1
- 235000011164 potassium chloride Nutrition 0.000 claims 1
- 235000017557 sodium bicarbonate Nutrition 0.000 claims 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims 1
- 239000005720 sucrose Substances 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
Claims (36)
- ヒト患者または患畜の疾患、奇形または障害を、患者体内の移植部位にヒドロゲルポリマーを移植することにより治療するためのヒドロゲル組成物であって、
(i)移植部位において移植前には第1体積を占め、(ii)移植部位に存在する環境条件に応答して前記第1体積より大きい第2体積に膨張する、ある量の環境感受性多孔質ヒドロゲルポリマーを含んでなる組成物。 - 多孔質ヒドロゲルポリマーが感受性である環境条件がpHである、請求項1に記載の組成物。
- ヒドロゲルが非孔質である、請求項1に記載の組成物。
- 放射線不透過性粒子を組み込むことにより、ヒドロゲルが放射線不透過性となっている、請求項1に記載の組成物。
- 放射線不透過性モノマーを組み込むことによりヒドロゲルが放射線不透過性となっている、請求項1に記載の組成物。
- ヒドロゲルは、その環境が約7.4の生理的pHであるとき、その第2体積に膨張する、請求項2に記載の組成物。
- 移植部位に送出されるとき、ヒドロゲルがペレットの形態である、請求項1に記載の組成物。
- 移植部位に送出されるとき、ヒドロゲルが長尺状のフィラメントまたはチューブの形態である、請求項1に記載の組成物。
- 移植部位に送出されるとき、ヒドロゲルが粒子の形態である、請求項1に記載の組成物。
- カテーテルを介してヒドロゲルを移植部位に送出する、請求項1に記載の組成物。
- カテーテルがマイクロカテーテルである、請求項10に記載の組成物。
- マイクロカテーテルが約0.0127〜0.127センチメートル(0.005〜0.050インチ)の管腔を有し、この管腔を介してヒドロゲルが送出される、請求項11に記載の組成物。
- ヒドロゲルを液体担体と混合し、次いで、液体担体/ヒドロゲル混合物をカテーテルの管腔を介して注入する、請求項10に記載の組成物。
- ヒドロゲルを分離可能な搬送部材に結合させ、ヒドロゲルが結合している搬送部材を共に経管的に移植部位に進め、その後、搬送部材を後退させて抜出した後でヒドロゲルが移植部位に移植されたまま残るようにヒドロゲルを搬送部材から分離する、請求項10に記載の組成物。
- ヒドロゲルは、その環境のpHが増大するにつれ、より迅速に膨張する、請求項2に記載の組成物。
- 環境感受性ヒドロゲルポリマーを製造する方法であって、
(A)少なくとも(i)環境感受性モノマーおよびプレポリマーのうちの少なくともいずれか、(ii)架橋剤、および(iii)開始剤を含有する反応混合物を生成するステップと、
(B)水性液に浸漬させると膨張するヒドロゲルを生成するために架橋剤を用いてモノマーおよび/またはポリマーを架橋結合させるステップと、
(C)ヒドロゲルが存在する環境がヒドロゲルの膨張速度に影響を及ぼすようにヒドロゲルを環境感受性にするように処理するステップと
を含んでなる方法。 - ヒドロゲルを生成するために組合わされる材料には、イオン性官能基を有するエチレン性不飽和モノマーが含まれる、請求項16に記載の方法。
- イオン性官能基がアミン基である、請求項17に記載の方法。
- イオン性官能基がカルボン酸基である、請求項17に記載の方法。
- モノマーが、アクリル酸、アクリル酸の誘導体、メタクリル酸、メタクリル酸の誘導体、およびそれらの実施可能な組み合わせのうちから選択される、請求項19に記載の方法。
- 架橋剤がエチレン性不飽和架橋剤を含んでなる、請求項16に記載の方法。
- 架橋剤がN,N′−メチレンビスアクリルアミドを含んでなる、請求項21に記載の方法。
- 架橋剤を生分解性とすることにより、得られるヒドロゲルを生分解性にさせる、請求項16に記載の方法。
- ステップ(A)で生成される反応混合物が造孔剤をさらに含んでなり、ステップ(B)で生成されるヒドロゲルは内部に分散された造孔剤粒子を有し、前記方法が、
ヒドロゲルから造孔剤を除去してヒドロゲルに細孔を形成するステップ
をさらに含んでなる、請求項16に記載の方法。 - 反応混合物が溶媒中で生成され、造孔剤が溶媒には不溶であるが洗浄溶液には可溶であり、前記洗浄溶液がヒドロゲルから造孔剤を除去するために用いられる、請求項24に記載の方法。
- 造孔剤が、塩化ナトリウム、塩化カリウム、氷、スクロース、重炭酸ナトリウムおよび実施可能なそれらの組合わせのうちから選択される、請求項24に記載の方法。
- 開始剤が酸化還元開始剤である、請求項16に記載の方法。
- 酸化還元開始剤がN,N,N′,N′−テトラメチルエチレンジアミンを含んでなる、請求項26の記載の方法。
- ステップ(A)が、
アクリルアミドと、アクリル酸ナトリウムと、N,N′−メチレンビスアクリルアミドと、塩化ナトリウムと、開始剤であって、
N,N,N′,N′−テトラメチルエチレンジアミン、
過硫酸アンモニウム、および
それらの組合わせのうちから選択される少なくとも1種の開始剤とを組み合わせることを含んでなる、請求項16に記載の方法。 - ヒドロゲルは、その環境のpHが増大するにつれその第1体積からその第2体積に膨張するようにpH感受性であり、ステップ(C)が、ヒドロゲルを移植しようとする環境のpHより低いpHを有する溶液でヒドロゲルを処理することを含んでなる、請求項29に記載の方法。
- ステップ(C)が、ヒドロゲル上に存在する化学基をプロトン化することを含んでなり、その後で、それらの化学基を脱プロトン化することにより、ヒドロゲルの体積が膨張する、請求項16に記載の方法。
- ステップ(C)が、ヒドロゲルと、化学基をプロトン化する酸性溶液とを接触させることを含んでなる、請求項16に記載の方法。
- ステップ(A)で用いられるモノマーおよび/またはプレポリマーが放射線不透過性であり、それにより放射線不透過性ヒドロゲルが生成する、請求項16記載の方法。
- ステップ(A)で生成される反応混合物がさらに放射線不透過性材料を含んでなり、その結果、放射線不透過性ヒドロゲルが生成する、請求項16に記載の方法。
- 放射線不透過性材料が、
タンタル、
金、
白金、および
実施可能なそれらの組合わせのうちから選択される、請求項34に記載の方法。 - 請求項16乃至35のいずれか1項に記載の方法により製造されたヒドロゲル。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/804,935 US6878384B2 (en) | 2001-03-13 | 2001-03-13 | Hydrogels that undergo volumetric expansion in response to changes in their environment and their methods of manufacture and use |
PCT/US2002/005988 WO2002071994A1 (en) | 2001-03-13 | 2002-02-28 | Hydrogels that undergo volumetric expansion in response to changes in their environment and their methods of manufacture and use |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009229839A Division JP5154529B2 (ja) | 2001-03-13 | 2009-10-01 | 環境の変化に応答して体積が膨潤するヒドロゲルならびにそれらの製造法および利用法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004528880A JP2004528880A (ja) | 2004-09-24 |
JP2004528880A5 true JP2004528880A5 (ja) | 2007-07-12 |
JP4416151B2 JP4416151B2 (ja) | 2010-02-17 |
Family
ID=25190260
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002570954A Expired - Lifetime JP4416151B2 (ja) | 2001-03-13 | 2002-02-28 | 環境の変化に応答して体積が膨潤するヒドロゲルならびにそれらの製造法および利用法 |
JP2009229839A Expired - Lifetime JP5154529B2 (ja) | 2001-03-13 | 2009-10-01 | 環境の変化に応答して体積が膨潤するヒドロゲルならびにそれらの製造法および利用法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009229839A Expired - Lifetime JP5154529B2 (ja) | 2001-03-13 | 2009-10-01 | 環境の変化に応答して体積が膨潤するヒドロゲルならびにそれらの製造法および利用法 |
Country Status (9)
Country | Link |
---|---|
US (5) | US6878384B2 (ja) |
EP (3) | EP2308431B1 (ja) |
JP (2) | JP4416151B2 (ja) |
CN (2) | CN1306916C (ja) |
AU (3) | AU2002306605B2 (ja) |
BR (1) | BRPI0208034B8 (ja) |
CA (1) | CA2439925C (ja) |
ES (3) | ES2478992T3 (ja) |
WO (1) | WO2002071994A1 (ja) |
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