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MEDICAL BASE MATERIAL NEW

外国特許コード F170009293
整理番号 S2016-0078-C0
掲載日 2017年11月21日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP081746
国際公開番号 WO 2017073624
国際出願日 平成28年10月26日(2016.10.26)
国際公開日 平成29年5月4日(2017.5.4)
優先権データ
  • 特願2015-214595 (2015.10.30) JP
発明の名称 (英語) MEDICAL BASE MATERIAL NEW
発明の概要(英語) Provided is a medical base material which is suitable for the regeneration of the circulatory system, including aorta, that is exposed to a high pressure from a lumen, and which can be bioabsorbed after implantation. The medical base material according to the present invention has a sheet-like form, a tubular form or a combination of these forms, can be implanted into a living body for the regeneration of the circulatory system, and has a multi-layer structure having at least an inner layer that is arranged on the intima side of the circulatory system and an outer layer that is arranged on the adventitia side of the circulatory system relative to the inner layer and is made from a material containing at least stereocomplex-type poly(lactic acid), wherein the layer arranged on the adventitia side of the circulatory system relative to the inner layer is formed in a porous form so that a feeding blood vessel can reach the inner layer or can pierce into the vicinity of the inner layer.
特許請求の範囲(英語) [claim1]
1. Doing seat form, tube form or the form which combines these, transplanting to internal, being the medical application backing material which is used for the playback of circulatory organ system,
The inner layer which is arranged on intima side of circulatory organ system and,
As from the inner layer it is arranged on exine side of circulatory organ system, outside consists of the material which includes stereo complex poly- lactic acid at least layer and,
We do the double layer system which it has at least,
In order the layer which is arranged on exine side of circulatory organ system, for the nutrition blood vessel to reach to the inner layer from the inner layer or in order to be able to enter to the inner layer vicinity, the medical application backing material which is formed to porous form.
[claim2]
2. Outside layer, in the claim 1 which is formed 50 weight % of stereo complex poly- lactic acid above by the cloth which consists of the fiber material which is included the medical application backing material of statement.
[claim3]
3. The cloth, in the claim 2 which is the textile goods or knitting the medical application backing material of statement.
[claim4]
4. The inner layer, in either of the claim 1- claim 3 which is formed poly- glycol acid, the copolymer of lactic acid and caprolactone, [L]-pori lactic acid and [D]-pori lactic acid, glycol acid and the copolymer of lactic acid, at least by the material of 1 where it is chosen kinds from the group which consists of the gelatin, the collagen and elastin the medical application backing material of statement.
[claim5]
5. The inner layer, in the claim 4 which is formed by the divination affinity cloth which consists of the fiber material the medical application backing material of statement.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • THE DOSHISHA
  • 発明者(英語)
  • HAGIWARA AKEO
国際特許分類(IPC)
指定国 (WO201773624)
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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