申请人:S. Bezwada Rao
公开号:US20060188547A1
公开(公告)日:2006-08-24
Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from:
or the diamines and diisocyanates thereof, wherein each X represents a member independently selected from —CH
2
COO— (glycolic acid moiety), —CH(CH
3
)COO— (lactic acid moiety), —CH
2
CH
2
OCH
2
COO— (dioxanone), —CH
2
CH
2
CH
2
CH
2
CH
2
COO— (caprolactone moiety), —(CH
2
)
y
COO— where y is one of the numbers 2, 3, 4 or 6-24 inclusive, and —(CH
2
CH
2
O)
z′
CH
2
COO— where z′ is an integer between 2 and 24, inclusive; each Y represents a member independently selected from —COCH
2
O— (glycolic ester moiety), —COCH(CH
3
)O— (lactic ester moiety), —COCH
2
OCH
2
CH
2
O— (dioxanone ester), —COCH
2
CH
2
CH
2
CH
2
CH
2
O— (caprolactone ester), —CO(CH
2
)
m
O— where m is an integer between 2, 3, 4 or 6-24 inclusive, —COCH
2
O(CH
2
CH
2
O)
n
— where n is an integer between 2 and 24, inclusive; R′ is hydrogen, benzyl or an alkyl group, the alkyl group being either straight-chained or branched; p is an integer between 1 and 4, inclusive; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO
2
, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.
由至少选择自以下化合物制备的可吸收聚氨酯、聚酰胺和聚酯聚氨酯:或其二胺和二异氰酸酯,其中每个X分别代表从—CH2COO—(乙二醇酸基团),—CH(CH3)COO—(乳酸酸基团),—CH2CH2OCH2COO—(二氧环己酮),—CH2CH2CH2CH2CH2COO—(己内酯基团),—(CH2)yCOO—其中y是2、3、4或6-24之间的一个数字,以及—(CH2CH2O)z′CH2COO—其中z′是介于2和24之间的整数;每个Y分别代表从—COCH2O—(乙二醇酸酯基团),—COCH(CH3)O—(乳酸酸酯基团),—COCH2OCH2CH2O—(二氧环己酮酯基团),—COCH2CH2CH2CH2CH2O—(己内酯酯基团),—CO(CH2)mO—其中m是介于2、3、4或6-24之间的整数,—COCH2O(CH2CH2O)n—其中n是介于2和24之间的整数;R′是氢、苄基或烷基,烷基可以是直链或支链;p是介于1和4之间的整数;Rn代表选择自H、烷氧基、苯甲氧基、醛、卤素、羧酸和—NO2的一个或多个成员,它直接附着在芳香环上或通过脂肪链附着。从这些化合物制备的可吸收聚合物对于药物传递、组织工程、组织粘接、粘着预防和其他可植入医疗器械非常有用。