Puncture Resistant Properties Of Medical Material
A puncture resistant medical material having a puncture resistant layer comprising a resin prepared by mixing 100 parts by weight of a styrene elastomer and/or an olefin elastomer, and at least 20 parts by Weight of an isoprene derivative.Puncture Resistant Properties Of Medical Material
A puncture resistant tubular laminate structure comprising a puncture resistant layer comprising a resin prepared by mixing of a styrene elastomer and/or an olefin elastomer, and at least 20 parts by weight of an isoprene derivative; and a layer of an olefin elastomer nonwoven fabric disposed on the puncture resistant layer on its outer surface.
An artificial blood vessel comprising a puncture resistant non-porous layer comprising a resin prepared by mixing 100 parts by Weight of a styrene elastomer and/or an olefin elastomer, and at least 20 parts by weight of an isoprene derivative; a porous layer of a polyester resin disposed on the puncture resistant layer on its inner surface; and a porous layer disposed on the puncture resistant layer on its outer surface.
An artificial blood vessel according to the above (4) wherein the inner porous polyester layer comprises a woven, knitted, or braided fiber structure of a polyethylene terephthalate/polybuthylene terephthalate conjugate fiber; the puncture resistant layer comprises a resin prepared by mixing 100 parts by Weight of a styrene elastomer and at least 20 parts by weight of an isoprene derivative; and the outer porous layer comprises an olefin elastomer nonwoven fabric.Puncture Resistant Properties Of Medical Material
When 20 parts by Weight or more of an isoprene derivative is added to 100 parts by Weight of the styrene elastomer and/or the olefin elastomer, the resulting resin will have a reduced hardness, and an improved tensile strength. Preferable isoprene derivatives for use in the present invention are squalene and squalene although the isoprene derivatives used are not limited to any particular species. The squalene and squalene used may be the one that has been isolated or derived from a natural source or the one that has been synthesized. Other isoprene derivatives that may be used in the present invention include geranyl geranate, geranyl geraniol, geranyl linalool, isophyitol, phytol, phytyl acetate, hexahydropharnicyl acetone, pharnicyl acetone, nerolydol, pharnecene, bisaboleIne, bisabolol, pharnesol, gephalnate, pharnesal, phalnecyl acid, geranyl acetone, etc. Puncture Resistant Properties Of Medical Material