JP2017093908A - 金属医療用具及びその製造方法 - Google Patents
金属医療用具及びその製造方法 Download PDFInfo
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- JP2017093908A JP2017093908A JP2015230841A JP2015230841A JP2017093908A JP 2017093908 A JP2017093908 A JP 2017093908A JP 2015230841 A JP2015230841 A JP 2015230841A JP 2015230841 A JP2015230841 A JP 2015230841A JP 2017093908 A JP2017093908 A JP 2017093908A
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- containing hydrophilic
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Classifications
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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
- 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
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/02—Inorganic materials
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
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Abstract
【解決手段】アルコキシシラン又は置換アルコキシ基を有する変性アルコキシシランにより形成されたプライマー層と、ポリオキシアルキレン基、金属塩含有親水性基、ハロゲン塩含有親水性基又はフッ素含有疎水性基を有するシラン化合物により形成された該プライマー層上の機能層とを有する表面処理層が、金属表面の少なくとも一部に形成された金属医療用具。
【選択図】なし
Description
前記ハロゲン塩含有親水性基は、塩素塩含有親水性基であることが好ましい。
前記フッ素含有疎水性基は、パーフルオロオキシアルキレン基であることが好ましい。
前記製造方法は、前記工程2で得られた処理物を湿度50%以上の条件下で保持する工程3を含むことが好ましい。
R11 kSi(OR12)4−k (I)
(式中、各々のR11、R12は、同一若しくは異なって、炭素数1〜8の飽和又は不飽和炭化水素基を表し、R11とR12は同一の基でも異なる基でもよい。kは0〜3の整数を表す。)
なかでも、2個以上のアルコキシ基を有する化合物が好ましく、3個以上のアルコキシ基を有する化合物がより好ましい。
(R21O)mSi(OR22)n (II)
(式中、R21及びR22は、同一若しくは異なって、炭素数1〜8の飽和又は不飽和炭化水素基を表す。平均値として、m+n=4、m≧n≧0である。)
式(II−1)
(H3C−CH2−CH2−CH2−O−)m−Si−(O−CH2−CH3)n
(式中、平均値として、m+n=4、m>n>0である。)
なお、上記結合単位6A、6Bの含有量は、結合単位6A、6Bがシラン化合物の末端に位置する場合も含む量である。結合単位6A、6Bがシラン化合物の末端に位置する場合の形態は特に限定されず、結合単位6A、6Bを表す上記一般式(6A)、(6B)に対応するユニットを形成していればよい。
なお、本発明において、重量平均分子量は、ゲルパーミエーションクロマトグラフ(GPC)を用い、標準ポリスチレン換算により測定できる。
SUS製のガイドワイヤー(芯線)をアセトンで洗浄し、乾燥した。乾燥したガイドワイヤーをプライマーコートPC−3B((株)フロロテクノロジー製、上記式(II−1)で表されるブトキシ/エトキシ系テトラアルコキシシラン)に浸漬し、引き上げて、乾燥させた。
次に、プライマー処理して乾燥したガイドワイヤーを10質量%に調整したSIM6492.57(Gelest社製、上記式(1−3)で表される化合物)水溶液中に30分浸漬した後、取り出して室温(25℃)、湿度90%の湿潤下で24時間放置した。そののち水で洗浄して乾燥し、表面処理ガイドワイヤーを得た。
SIM6492.57水溶液に代えて、SIB1824.84(Gelest社製、上記式(2−1)で表される化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SIT8402.0(Gelest社製、上記式(3−1)で表される化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SIT8378.5(Gelest社製、上記式(4−1)で表される化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、0.1質量%に調整したオプツールDSX(ダイキン工業(株)製、フッ素含有疎水性基を有するシラン化合物)のパーフルオロヘキサン溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)に代えて、ニッケル−チタン合金製のガイドワイヤー(芯線)を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)に代えて、ニッケル−チタン合金製のガイドワイヤー(芯線)を用いた以外は、実施例2と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)に代えて、ニッケル−チタン合金製のガイドワイヤー(芯線)を用いた以外は、実施例3と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)に代えて、ニッケル−チタン合金製のガイドワイヤー(芯線)を用いた以外は、実施例4と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)に代えて、ニッケル−チタン合金製のガイドワイヤー(芯線)を用いた以外は、実施例5と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SIT8192.2(Gelest社製、上記式(4−2)で表される化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SIB1500.0(Gelest社製、上記式(5−1)で表される化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SIB1500.0(Gelest社製、上記式(5−1)で表される化合物)水溶液(酢酸でpH4に調整したもの)を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SIM6492.57水溶液に代えて、SSP−060(Gelest社製、上記式(6A−1)で表される結合単位と上記式(6B−1)で表される結合単位とを有する化合物)水溶液を用いた以外は、実施例1と同様にして、表面処理ガイドワイヤーを作製した。
SUS製のガイドワイヤー(芯線)をアセトンで洗浄し、乾燥しただけのものを使用した。
ニッケル−チタン合金製のガイドワイヤー(芯線)をアセトンで洗浄し、乾燥しただけのものを使用した。
表面処理ガイドワイヤー又はガイドワイヤーに水をつけて手で擦る手法により、摺動性を官能評価した。
(評価結果)
SUS製のガイドワイヤーについて、比較例1のガイドワイヤーに比べ、実施例1〜5及び実施例11〜14の表面処理ガイドワイヤーはつるつる感があり、摺動性が良好であった。特に実施例11と実施例14のつるつる感が高かった。更に、100回擦った後でも、つるつる感に変化がなく、摺動性の低下抑制性にも優れていた。ニッケル−チタン合金製のガイドワイヤーも同様に、比較例2のガイドワイヤーに比べ、実施例6〜10の表面処理ガイドワイヤーは、摺動性が良好で、その低下抑制性に優れていた。
表面処理ガイドワイヤー又はガイドワイヤーに対するタンパク質の吸着性、細胞の吸着性を評価した。
(評価結果)
プライマー層上の機能層を、ポリオキシアルキレン基を有するシラン化合物により形成した実施例1、2、6、7は、タンパク質や細胞の吸着量が少なく、金属塩含有親水性基を有するシラン化合物を用いた実施例3、4、8、9、11は、更に吸着量が少なかった。ハロゲン塩含有親水性基を有するシラン化合物を用いた実施例12〜14は、金属塩含有親水性基を有するシラン化合物を用いたケースより若干吸着量が多いものの、比較例1〜2の非処理ガイドワイヤー(金属)に比べ、吸着量がかなり少なかった。フッ素含有疎水性基を有するシラン化合物を用いた実施例5、10も吸着量が少なかった。更に、実施例は、タンパク質や細胞の吸着、洗浄を繰り返しても、低吸着性が維持されていた。
Claims (7)
- アルコキシシラン又は置換アルコキシ基を有する変性アルコキシシランにより形成されたプライマー層と、ポリオキシアルキレン基、金属塩含有親水性基、ハロゲン塩含有親水性基又はフッ素含有疎水性基を有するシラン化合物により形成された該プライマー層上の機能層とを有する表面処理層が、金属表面の少なくとも一部に形成された金属医療用具。
- 前記金属塩含有親水性基がアルカリ金属塩含有親水性基又はアルカリ土類金属塩含有親水性基である請求項1記載の金属医療用具。
- 前記ハロゲン塩含有親水性基が塩素塩含有親水性基である請求項1記載の金属医療用具。
- 前記フッ素含有疎水性基がパーフルオロオキシアルキレン基である請求項1記載の金属医療用具。
- アルコキシシラン又は置換アルコキシ基を有する変性アルコキシシランにより金属表面をプライマー処理する工程1と、
前記プライマー処理を施した表面を、ポリオキシアルキレン基、金属塩含有親水性基、ハロゲン塩含有親水性基又はフッ素含有疎水性基を有するシラン化合物により機能化処理する工程2とを含む請求項1〜4のいずれかに記載の金属医療用具の製造方法。 - 前記工程2がpH5以下の条件で行われる請求項5記載の金属医療用具の製造方法。
- 前記工程2で得られた処理物を湿度50%以上の条件下で保持する工程3を含む請求項5又は6記載の金属医療用具の製造方法。
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CN201610832484.5A CN107029303A (zh) | 2015-11-26 | 2016-09-19 | 金属医疗用具及其制造方法 |
EP16190790.2A EP3173105B1 (en) | 2015-11-26 | 2016-09-27 | Metal medical device and method for producing the same |
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WO2019198374A1 (ja) * | 2018-04-10 | 2019-10-17 | Agc株式会社 | 医療用デバイス |
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