Medical instrument valve

摘要: A hemostasis valve is provided for catheters or the like, comprising an elastomeric partition secured in a housing. linear slit extends through between major faces thereof. By this invention, of has at least one concave face which extends. Such provides further improved sealing characteristics over wide range diameters catheters, leads, like penetrating valve, particularly reducing frictional resistance to catheter advancement and rotation also collapse valve.