| 摘要 |
An endotracheal tube comprising a tube obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to extrusion-molding, wherein the tube has a storage modulus (MD) of 5.0x107 to 8.0x108 dyne/cm2 in the extrusion direction of at 25° C., and has a ratio of the storage modulus (MD) in the extrusion direction to a storage modulus (TD) in the circumferential direction (MD/TD) of not more than 1.3 at 25° C. The endotracheal tube can be suitably used for an orally inserted endotracheal tube, a nasally inserted endotracheal tube, and a tube for tracheostomy to be inserted into the trachea from a tracheostoma. A cuff having a storage modulus of not more than 5.0x108 dyne/cm at 25° C., obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to blow-molding, wherein the resin composition has a melt tension of not less than 1 g at 230° C. The cuff can be used in the endotracheal tube.
|
