JP2014177699A - 複合材料及びその製造方法、医療用インプラント及びその製造方法、ならびに患者の体内における水素ガス放出を減少させる方法 - Google Patents
複合材料及びその製造方法、医療用インプラント及びその製造方法、ならびに患者の体内における水素ガス放出を減少させる方法 Download PDFInfo
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000007943 implant Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 51
- 239000003054 catalyst Substances 0.000 claims abstract description 50
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 38
- 239000011159 matrix material Substances 0.000 claims abstract description 36
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 15
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 230000002792 vascular Effects 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000010948 rhodium Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 230000000399 orthopedic effect Effects 0.000 claims description 3
- 229910052762 osmium Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 35
- 229910052739 hydrogen Inorganic materials 0.000 description 28
- 239000001257 hydrogen Substances 0.000 description 27
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 230000003197 catalytic effect Effects 0.000 description 13
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012620 biological material Substances 0.000 description 5
- -1 hydroxide ions Chemical class 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 102100026933 Myelin-associated neurite-outgrowth inhibitor Human genes 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 239000000155 melt Substances 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 241000255969 Pieris brassicae Species 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920006237 degradable polymer Polymers 0.000 description 2
- 206010012601 diabetes mellitus Diseases 0.000 description 2
- 239000010411 electrocatalyst Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 208000037803 restenosis Diseases 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
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- 230000008025 crystallization Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910000457 iridium oxide Inorganic materials 0.000 description 1
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- 239000003446 ligand Substances 0.000 description 1
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- 229910052748 manganese Inorganic materials 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
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- 125000004430 oxygen atom Chemical group O* 0.000 description 1
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/42—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having an inorganic matrix
- A61L27/427—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having an inorganic matrix of other specific inorganic materials not covered by A61L27/422 or A61L27/425
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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
- A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
- A61L17/06—At least partially resorbable materials
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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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/58—Materials at least partially resorbable by the body
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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
- A61L31/12—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L31/121—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having an inorganic matrix
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- 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
- A61L31/148—Materials at least partially resorbable by the body
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Abstract
【解決手段】医療インプラント用の複合材料は、マグネシウム又はマグネシウム合金のマトリックス1と、マトリックス1に分散した触媒6を含む。触媒6は、マトリックス1が患者の体内で分解している際にマトリックス1から放出される水素ガスの量を減少させることができる。
【選択図】図2
Description
Mg+2H2O→Mg2++2OH−+H2
このメカニズムは、酸素濃度とはおよそ無関係である。生体内においては、pH値の局所的増加に伴い、水素イオンが細胞組織に害を及ぼすことがあり、また、水素ガス生成によってインプラント周辺に気孔が形成されるため、周囲組織が損傷したり、血液中に気泡が形成されたりすることから、患者にとって危険である。
第1段階:Mg又はMg合金の分解により、水素ガスが生成される。
第2段階:水素が、触媒部位に接触する。例えば、(これに限定されないが)吸着及び化学吸着などの1つ以上の異なる方法により容易に接触させることができる。水素は、まず触媒部位又は触媒部位付近の部位に吸着され、その後脱離し、そして触媒部位と接触する。
第3段階:水素は、触媒部位で触媒によって酸化し、水(又は別の合成物)となる。
Mg+2H2O→Mg2++2OH−+H2
水分子2(水素原子を表す小さい黒丸と酸素原子を表す大きい白丸)の存在下で、マトリックス1中のマグネシウムが分解し、マグネシウムイオン3(大きい黒丸で表される)となる。この反応で、水酸化物イオン4と気体水素5も生成される。マトリックス1中に分散した触媒6(大きい白丸で表される)の存在下で、気体水素5は水分子に触媒的に変換される。
マグネシウム又はマグネシウム合金のマトリックスと、
マトリックスに分散した触媒を含み、
触媒は、マトリックスの分解中にそのマトリックスから放出される水素ガスの量を減少させることができる。
2 水分子
3 マグネシウムイオン
4 水酸化物イオン
5 気体水素
6 触媒
Claims (12)
- マグネシウム又はマグネシウム合金のマトリックスと、
前記マトリックスに分散した触媒を含み、
前記触媒は、前記マトリックスの分解中に前記マトリックスから放出される水素ガスの量を減少させることができることを特徴とする複合材料。 - 前記マトリックスは、pH11.5未満の水溶液環境で分解するように構成された請求項1記載の複合材料。
- 前記触媒は、プラチナ(Pt)、ルテニウム(Ru)、ロジウム(Rh)、パラジウム(Pd)、オスミウム(Os)、イリジウム(Ir)、ニオブ(Nb)、モリブデン(Mo)、タンタル(Ta)、タングステン(W)、金属酸化物、バナジウム(V)系酸化物、ニッケル系(Ni)酸化物、及びそれらの混合物からなる群から選択される請求項1記載の複合材料。
- 前記複合材料の0.001〜1重量%が前記触媒からなる請求項1記載の複合材料。
- 前記触媒は、前記マグネシウム又はマグネシウム合金のマトリックスの全体に分散している請求項1記載の複合材料。
- 前記触媒は、活性触媒が常に前記マトリックスの表面上に存在するように、前記マトリックスの全体に分散している請求項1記載の複合材料。
- 請求項1記載の複合材料を含む医療用インプラント。
- 前記医療用インプラントは、冠動脈ステント、縫合材、血管閉鎖装置、ペースメーカ又は神経刺激器の仮取付用装置、整形外科インプラント、血管外閉鎖装置及びクリップからなる群から選択される請求項7記載の医療用インプラント。
- 前記マトリックスと前記触媒の混合物を焼結することにより、前記触媒を前記マトリックスに分散させることを含む請求項1記載の複合材料の製造方法。
- 前記医療用インプラントを直接所望の形状で焼結する、又は、前記医療用インプラントを基本形状で焼結した後に最終形状に再成形する請求項7記載の医療用インプラントの製造方法。
- 前記再成形は、研削及び圧延のうち少なくとも1つを含むことを特徴とする請求項10記載の医療用インプラントの製造方法。
- 患者の体内における水素ガス放出を減少させる方法であって、請求項1記載の前記複合材料を含む医療用インプラントを前記患者の体内に挿入することを特徴とする方法。
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US13/829,033 US20140277328A1 (en) | 2013-03-14 | 2013-03-14 | Composite material and uses thereof |
US13/829,033 | 2013-03-14 |
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WO2007058276A1 (ja) * | 2005-11-16 | 2007-05-24 | National Institute For Materials Science | マグネシウム系生分解性金属材料 |
JP2009535504A (ja) * | 2006-04-28 | 2009-10-01 | バイオマグネシウム システムズ リミテッド | 生分解性マグネシウム合金およびその使用 |
CA2817450A1 (en) * | 2011-02-24 | 2012-08-30 | Biotronik Ag | Biocorrodible magnesium alloy implant |
US20120269673A1 (en) * | 2009-12-07 | 2012-10-25 | Ja-Kyo Koo | Magnesium alloy |
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US5676689A (en) | 1991-11-08 | 1997-10-14 | Kensey Nash Corporation | Hemostatic puncture closure system including vessel location device and method of use |
US6508828B1 (en) | 2000-11-03 | 2003-01-21 | Radi Medical Systems Ab | Sealing device and wound closure device |
JP4512369B2 (ja) | 2002-01-31 | 2010-07-28 | ラディ・メディカル・システムズ・アクチェボラーグ | ステント |
US7931670B2 (en) | 2003-10-15 | 2011-04-26 | St. Jude Medical Puerto Rico Llc | Tissue puncture closure device with automatic tamping |
US20050126663A1 (en) * | 2003-12-11 | 2005-06-16 | Fetcenko Michael A. | Catalyzed hydrogen desorption in Mg-based hydrogen storage material and methods for production thereof |
US7713283B2 (en) | 2005-04-11 | 2010-05-11 | St. Jude Medical Puerto Rico, Llc | Tissue puncture closure device with magazine fed tamping system |
US7250057B2 (en) | 2005-04-11 | 2007-07-31 | St. Jude Medical Puerto Rico B.V. | Tissue puncture closure device with automatic torque sensing tamping system |
US7988706B2 (en) | 2005-04-11 | 2011-08-02 | St. Jude Medical Puerto Rico Llc | Tissue puncture closure device with automatic torque sensing tamping system |
DE102008054920A1 (de) * | 2008-12-18 | 2010-07-01 | Biotronik Vi Patent Ag | Implantat sowie Verfahren zur Herstellung einer Schichtstruktur |
-
2013
- 2013-03-14 US US13/829,033 patent/US20140277328A1/en not_active Abandoned
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2014
- 2014-03-10 JP JP2014046746A patent/JP6013386B2/ja not_active Expired - Fee Related
- 2014-03-12 EP EP14159212.1A patent/EP2777724B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007058276A1 (ja) * | 2005-11-16 | 2007-05-24 | National Institute For Materials Science | マグネシウム系生分解性金属材料 |
JP2009535504A (ja) * | 2006-04-28 | 2009-10-01 | バイオマグネシウム システムズ リミテッド | 生分解性マグネシウム合金およびその使用 |
US20120269673A1 (en) * | 2009-12-07 | 2012-10-25 | Ja-Kyo Koo | Magnesium alloy |
CA2817450A1 (en) * | 2011-02-24 | 2012-08-30 | Biotronik Ag | Biocorrodible magnesium alloy implant |
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EP2777724A3 (en) | 2015-01-14 |
US20140277328A1 (en) | 2014-09-18 |
JP6013386B2 (ja) | 2016-10-25 |
EP2777724A2 (en) | 2014-09-17 |
EP2777724B1 (en) | 2019-01-30 |
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