초록 ▼

A medical insertion device that reduces the drag force exerted on an elongated member such as a catheter that is inserted through the device, increases maneuverability of the elongated member throughout the procedure in which the device is used and provides hemostasis. The device comprises a sheath

A medical insertion device that reduces the drag force exerted on an elongated member such as a catheter that is inserted through the device, increases maneuverability of the elongated member throughout the procedure in which the device is used and provides hemostasis. The device comprises a sheath housing and shuttle housing; the shuttle housing moves relative to the sheath housing. An elastomeric valve that contains an openable radial slit is provided in the sheath housing and provides hemostasis until the shuttle housing is biased towards the sheath housing. When the shuttle housing is biased forward, a generally tubular shuttle tube in the shuttle housing opens the slit in the elastomeric valve. The device is constructed so that, within the shuttle housing, hemostasis is provided after the shuttle tube has biased the elastomeric valve open.

대표청구항 ▼

[ What is claimed is:] [1.] A medical insertion device for introducing an elongated member into a vascular system and facilitating maneuverability of the elongated member through the vascular system while providing hemostasis, the device comprising:a housing having an interior lumen extending theret

[ What is claimed is:] [1.] A medical insertion device for introducing an elongated member into a vascular system and facilitating maneuverability of the elongated member through the vascular system while providing hemostasis, the device comprising:a housing having an interior lumen extending therethrough;a sheath tube attached to a distal end of the housing, the sheath tube having a distal end adapted for insertion into the vascular system;a first elastomeric valve secured within the interior lumen of the housing and having an openable slit therein;a shuttle tube having proximal and distal ends and an interior passageway, the interior passageway being in fluid communication with the interior lumen of the housing, the shuttle tube being capable of biasing the first elastomeric valve open; andmeans for maintaining hemostasis when the shuttle tube biases the first elastomeric valve open, the means for maintaining hemostasis being coupled to the shuttle tube, wherein the means for maintaining hemostasis comprises a Tuohy-Borst valve having an opening that is changeable in size so as to engage an outer diameter of the elongated member, the elongated member being inserted through the device.