Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Abstract: A method for cerebral cooling is described using a cooling assembly, which includes first and second elongate tubular members adapted for insertion into a nasal cavity of a patient through the patient's nostrils. The elongate tubular members each have a proximal end, a distal end, a lumen extending therebetween, and a plurality of ports in fluid communication with the lumen. The cooling assembly also includes a manifold and a reservoir, which contains a pressurized fluid that includes a propellant having a boiling point less than 22° C. The elongate tubular members are inserted into the nasal cavity through the patient's nostrils and pressurized fluid is delivered onto a surface of the nasal cavity by infusing the pressurized fluid from the reservoir through the manifold, into the lumens and through the plurality of ports of the first and second elongate tubular members.

Abstract: A method for cerebral cooling is described using a cooling assembly, which includes first and second elongate tubular members adapted for insertion into a nasal cavity of a patient through the patient's nostrils. The elongate tubular members each have a proximal end, a distal end, a lumen extending therebetween, and a plurality of ports in fluid communication with the lumen. The cooling assembly also includes a manifold and a reservoir, which contains a pressurized fluid that includes a propellant having a boiling point less than 22° C. The elongate tubular members are inserted into the nasal cavity through the patient's nostrils and pressurized fluid is delivered onto a surface of the nasal cavity by infusing the pressurized fluid from the reservoir through the manifold, into the lumens and through the plurality of ports of the first and second elongate tubular members.

Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Abstract: A method for cerebral cooling is described using a cooling assembly, which includes first and second elongate tubular members adapted for insertion into a nasal cavity of a patient through the patient's nostrils. The elongate tubular members each have a proximal end, a distal end, a lumen extending therebetween, and a plurality of ports in fluid communication with the lumen. The cooling assembly also includes a manifold and a reservoir, which contains a pressurized fluid that includes a propellant having a boiling point less than 22° C. The elongate tubular members are inserted into the nasal cavity through the patient's nostrils and pressurized fluid is delivered onto a surface of the nasal cavity by infusing the pressurized fluid from the reservoir through the manifold, into the lumens and through the plurality of ports of the first and second elongate tubular members.

Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Abstract: An ultrasonic transducer of the type containing a cylindrical piezoelectric active element mounted on a supporting tube is provided with a backing component made of an electrically and thermally insulating material forming a sleeve which extends between the piezoelectric element and the supporting tube. An insulating material is selected for the backing component which includes a substantial amount of entrained air. Preferably, the backing component is made of expanded polytetrafluoroethylene (EPTFE).

Abstract: A balloon catheter is provided with a sleeve and a flexible material where, upon inflation of the balloon, the sleeve is slid over a ball joint, preventing the flexible material and tube from moving through a range of motion in order to prevent the tube from kinking and misaligning.

Abstract: A device and method for precisely delivering dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. In one embodiment, the device includes a catheter which inserts into a vessel lumen of the body. The catheter includes an adjuster section for altering a portion of the radiation emitting radially from the radiation source so that the radiation source delivers an asymmetrical radiation profile to the vessel. The device can also include a catheter supporter which inhibits rotational deformation in the catheter between a catheter distal end and a catheter proximal end. This allows the delivery section to be precisely rotated to properly position the adjuster section within the vessel lumen.

Abstract: A device and method for precisely delivering dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. In one embodiment, the device includes a catheter which inserts into a vessel lumen of the body. The catheter includes an adjuster section for altering a portion of the radiation emitting radially from the radiation source so that the radiation source delivers an asymmetrical radiation profile to the vessel. The device can also include a catheter supporter which inhibits rotational deformation in the catheter between a catheter distal end and a catheter proximal end. This allows the delivery section to be precisely rotated to properly position the adjuster section within the vessel lumen.

Abstract: A device and method for precisely delivering dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. In one embodiment, the device includes a catheter which inserts into a vessel lumen of the body. The catheter includes an adjuster section for altering a portion of the radiation emitting radially from the radiation source so that the radiation source delivers an asymmetrical radiation profile to the vessel. The device can also include a catheter supporter which inhibits rotational deformation in the catheter between a catheter distal end and a catheter proximal end. This allows the delivery section to be precisely rotated to properly position the adjuster section within the vessel lumen.

Abstract: A device and method for precisely delivering dosage of radiation from a radiation source to a treatment site of a vessel is provided herein. In one embodiment, the device includes a catheter which inserts into a vessel lumen of the body. The catheter includes an adjuster section for altering a portion of the radiation emitting radially from the radiation source so that the radiation source delivers an asymmetrical radiation profile to the vessel. The device can also include a catheter supporter which inhibits rotational deformation in the catheter between a catheter distal end and a catheter proximal end. This allows the delivery section to be precisely rotated to properly position the adjuster section within the vessel lumen.