WO2000013716A1 - Materiau polymere pour os artificiel - Google Patents
Materiau polymere pour os artificiel Download PDFInfo
- Publication number
- WO2000013716A1 WO2000013716A1 PCT/JP1999/004791 JP9904791W WO0013716A1 WO 2000013716 A1 WO2000013716 A1 WO 2000013716A1 JP 9904791 W JP9904791 W JP 9904791W WO 0013716 A1 WO0013716 A1 WO 0013716A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- artificial bone
- polysaccharide
- polymer material
- carboxyl group
- derivative
- Prior art date
Links
Classifications
-
- 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
- A61L27/14—Macromolecular materials
- A61L27/20—Polysaccharides
Definitions
- the invention of this application relates to a polymer material for artificial bone. More specifically, the invention of the present application discloses a new artificial bone height capable of efficiently forming a bone-like apatite layer in a simulated body fluid. It relates to molecular materials.
- the aqueous solution for forming the tie layer is much higher than the ion concentration in the living body; With such an aqueous solution, it is impossible to form only an apatite whose structure and composition are significantly different from those of a living bone. However, the resulting material cannot achieve early bonding with living bone.
- the inventors of the present application have found the usefulness of a method based on the in vivo reaction (the biomedical method), and found that the organic method is useful.
- a method for depositing an artifact on a substrate Has been eagerly examined. However, it has not been possible to find a polymer material that efficiently precipitates a large number of apatites having structures and tissues close to those of bone minerals. .
- a cellulose substrate is used as an organic polymer, and an aperture is applied to the surface of the organic polymer.
- a silanol group Si-OH group
- the invention of the present application solves the above-mentioned problems of the prior art, and more efficiently and efficiently reconstructs a structure and a tissue having bone-like mechanical properties in a simulated body fluid. It is an object of the present invention to provide a new polymer material for artificial bone, which can form an aperitite layer.
- the present application first provides a first invention, namely, a polysaccharide having a carboxyl group or a derivative having a carboxyl group or a derivative thereof as a main component.
- a polysaccharide having a carboxyl group or a derivative having a carboxyl group or a derivative thereof as a main component.
- a polymer material for human bone characterized by this feature.
- the present application relates to the first invention, wherein the second invention is an artificial bone in which the solid is a porous solid, a fiber, a film, or a bulk.
- Polymer material as the third invention The present invention provides a high molecular weight material for artificial bone, wherein the polysaccharide is a natural polysaccharide having a carboxyl group or a polysaccharide derivative into which the carboxyl group is introduced.
- the invention of the present application provides, as a fourth invention, a polymer material for artificial bone which forms an avatar layer in a simulated body fluid, and a fifth invention.
- a method for producing a polymer material for artificial bone characterized in that calcium ion is bonded by contacting the polymer with an artificial bone; and a sixth or first invention, comprising: An artificial bone structure using the polymer material for artificial bone according to any one of the inventions of claim 4, wherein the artificial bone polymer material is an artificial bone material. It also provides a human bone structure characterized by the formation of an aperture layer on the surface.
- FIG. 1 is a diagram showing a process as an example together with the results of forming an aperture.
- FIG. 2 is a drawing in place of the SEM and SEM-EDX photograph of the sample L of the example.
- (1) is a CMC gel
- (2) is a drawing in which the gel of (1) is immersed in 1.0 SBF for 2 weeks, and (3) is a drawing replacing (2) with an enlarged SEM-EDX photograph.
- Figure 3 shows SEM and SEM for sample N in the example. It is a drawing that replaces one EDX photograph. (4) is a CMC gel, (5) is a gel of (4) after TEOS treatment, (6) is (5) immersed in 1.0 SBF for 2 weeks, and (7) is (6) ) Is a drawing that replaces the SEM-EDX photo.
- the polymer material for artificial bone of the invention of the present application has a solid or gel-like polysaccharide as a main component, and has a potention ion.
- the polysaccharide constituting the polymer material in this case which has been subjected to a bonding treatment, has a carboxyl group or a derivative thereof, but is present. Or these have been introduced.
- the deriving group is replaced by a hydrogen atom of a carboxyl group (one COOH), one COOR (ester), or one CO atom (M is a salt that is a metal atom).
- various types of substances having properties contributing to the binding process of calcium ion (Ca 2 + ) without inhibiting the binding process Is defined as For example, esters and salts that can easily form CO—O— in the presence of water. It may have the nature of a protecting group and form one CO—one in the bonding process.
- the high molecular weight polysaccharides may possess these carboxyl groups or their derivatizing groups in their structures, even if they have more power. Alternatively, it may be introduced by a chemical reaction.
- the polysaccharide composed mainly of the polymer material for artificial bone of the invention of the invention of the invention may be of various types derived from natural or synthetic, but is easy to obtain and handle. Yes, it is appropriate to use cellulose or chitin polysaccharide which has good structural strength and stability. It goes without saying that other kinds of high-molecular polysaccharides may be used.
- polysaccharide of the invention of the present invention include carboxymethyl cellulose (CMC), carboxycell mouth-mouth, and carboxymethyl-quintin-based. Some of them are listed.
- the form may be various types of fiber, bulk, film or the like.
- the solid or gel-like material is treated with a solution containing the force zone.
- Contacting can be exemplified as such a method.
- the solid forms a gel in an aqueous solution of a force-digestion (Ca 2 ", more specifically, an aqueous solution of Ca (OH) 2 ,.
- the ability to combine with the S 'shell 9 The bond of the force radical is first considered as a bond with the self-powered ruboxyl group. That is, divalent calcium forms a crosslink by bonding to two monovalent hydroxyl groups. For this reason, it is desirable that the coupling process of the dynamics should be as saturated as possible. For calcium ion, physical adsorption with artificial bone macromolecules is also considered. Will be considered.
- a bone-like apatite structure and tissue are formed on the surface of the material by contact with a human bodily fluid. This formation is much more efficient than in the past, and the avatar layer is still better in terms of performance. According to the present invention, a method for forming an artificial bone structure according to the above is also provided.
- a polymer material for artificial bone which forms a ano ⁇ ° titer layer in a simulated body fluid.
- the simulated body fluid is, for example, SBF [T. Kokubo, H. Kush I tan I, b. 24, 721-734 (1996)].
- Ie to reproduce in vo sur face-structure changes in bioactive gl ass-ceramic A — W " Is a water solution having the following ion concentration which is almost equal to the body fluid of human
- the high molecular weight material for artificial bone as described above of the present invention can be used in a simulated body fluid in a hydroxyapatite: Ca ,. It produces (PO 2 ) (OH) 2 and can be used as an artificial vertebral body, artificial disc, artificial iliac bone, artificial tibia, artificial skull, etc.
- SBF means “an aqueous solution having an ion concentration almost equal to that of a human body fluid” as described above.
- the gel is treated with a mixed solution of TEOS, ethanol, water, and 1N-HCI (molar ratio: 1 to 10 to 50%). 7 2) was carried out by immersion for 3 days at a temperature of 36.5 ° C.
- the Ca 2+ treatment was performed by immersing the gel in a Ca (OH) 2 saturated aqueous solution for one week.
- Fig. 1 also shows the results of the generation of the annotite.
- Fig. 2 shows the SEM and SEM-EDX images of sample L instead of photographs
- Fig. 3 shows the SEM and SEM-EDM of sample N. A drawing alternative to the above photograph was shown.
- a new artificial bone height capable of efficiently forming an aparameter similar to an in vivo reaction can be obtained.
- a molecular material is provided.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99940650A EP1044694A4 (en) | 1998-09-06 | 1999-09-03 | POLYMER MATERIALS FOR ARTIFICIAL BONES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26901098A JP3459575B2 (ja) | 1998-09-06 | 1998-09-06 | 人工骨用高分子材料 |
JP10/269010 | 1998-09-06 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09530800 A-371-Of-International | 2000-10-20 | ||
US09/964,688 Division US6692760B2 (en) | 1998-09-06 | 2001-09-28 | Polymeric material for artificial bone |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000013716A1 true WO2000013716A1 (fr) | 2000-03-16 |
Family
ID=17466420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004791 WO2000013716A1 (fr) | 1998-09-06 | 1999-09-03 | Materiau polymere pour os artificiel |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1044694A4 (ja) |
JP (1) | JP3459575B2 (ja) |
WO (1) | WO2000013716A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4683694B2 (ja) * | 2000-06-30 | 2011-05-18 | 京セラ株式会社 | 吸収性生体材料の製造方法 |
JP4794057B2 (ja) * | 2001-02-28 | 2011-10-12 | 京セラ株式会社 | 骨修復材の製造方法および骨修復材 |
KR20060000320A (ko) * | 2004-06-28 | 2006-01-06 | 재단법인서울대학교산학협력재단 | 생체활성을 갖는 생분해성 고분자-실록세인하이브리드체의 제조방법 및 이로부터 형성된 하이브리드체 |
JP2006198874A (ja) * | 2005-01-20 | 2006-08-03 | Yokohama National Univ | 燐酸カルシウム被覆微小球体、及び、その製造方法 |
JP2007054278A (ja) * | 2005-08-24 | 2007-03-08 | Kyushu Institute Of Technology | 人工骨用ペースト |
WO2007086421A1 (ja) * | 2006-01-26 | 2007-08-02 | National University Corporation Hokkaido University | 硬組織再生治療に用い得るハニカム状多孔質体 |
JPWO2007108329A1 (ja) * | 2006-03-20 | 2009-08-06 | 国立大学法人京都大学 | 生体適合性材料の製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09316105A (ja) * | 1996-05-31 | 1997-12-09 | Kyocera Corp | 制御された分子量範囲を有するカルボキシメチルキチンの製造方法 |
JPH10108905A (ja) * | 1996-10-07 | 1998-04-28 | Akiyoshi Ozaka | 医用インプラント材の表面処理方法及び生体親和性インプラント |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1219587B (it) * | 1988-05-13 | 1990-05-18 | Fidia Farmaceutici | Polisaccaridi carbossiilici autoreticolati |
DE4103876C2 (de) * | 1990-02-09 | 1994-07-07 | Asahi Optical Co Ltd | Verfahren zur Fixierung einer körnigen Knochen-Prothese und Kit zur Herstellung einer körnigen Knochen-Prothesezusammensetzung zur Verwendung in dem Fixierungsverfahren |
US5709854A (en) * | 1993-04-30 | 1998-01-20 | Massachusetts Institute Of Technology | Tissue formation by injecting a cell-polymeric solution that gels in vivo |
US5684051A (en) * | 1996-04-24 | 1997-11-04 | Hercules Incorporated | Medical devices with improved elastic response |
JP2805047B2 (ja) * | 1996-09-27 | 1998-09-30 | 工業技術院長 | リン酸カルシウム化合物−キチン及びキトサン複合材料及びその製造法 |
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1998
- 1998-09-06 JP JP26901098A patent/JP3459575B2/ja not_active Expired - Fee Related
-
1999
- 1999-09-03 EP EP99940650A patent/EP1044694A4/en not_active Withdrawn
- 1999-09-03 WO PCT/JP1999/004791 patent/WO2000013716A1/ja not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09316105A (ja) * | 1996-05-31 | 1997-12-09 | Kyocera Corp | 制御された分子量範囲を有するカルボキシメチルキチンの製造方法 |
JPH10108905A (ja) * | 1996-10-07 | 1998-04-28 | Akiyoshi Ozaka | 医用インプラント材の表面処理方法及び生体親和性インプラント |
Non-Patent Citations (1)
Title |
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See also references of EP1044694A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP2000079160A (ja) | 2000-03-21 |
EP1044694A4 (en) | 2002-07-24 |
JP3459575B2 (ja) | 2003-10-20 |
EP1044694A1 (en) | 2000-10-18 |
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