Single lumen atherectomy catheter device
AssigneeDevices for Vascular Intervention, Inc.
InventorsHanson S. Gifford, III, John B. Simpson
Life of this patent
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Abstract
Atherectomy device for removing material from an atheroma in the vascular system. A cutter is mounted in a cylindrical housing having a cutout on one side thereof at the distal end of a catheter. The catheter has a single luminal opening, and a flexible drive cable for operating the cutter passes through this opening. An inflatable balloon is positioned outside the housing opposite the cutout, and a medium for inflating the balloon is introduced through luminal opening of the catheter.
Claims16
In an atherectomy device for removal of material from an atheroma in a vessel of the vascular system of a patient, a generally cylindrical housing, said housing being formed with a cutout extending longitudinally of the housing on one side of the housing, atheroma cutting means disposed within the housing, flexible guiding means secured to the proximal end of the housing for advancing the housing into the vessel, flexible drive means connected to the atheroma cutting means for operating the atheroma cutting means, balloon-like inflatable means carried by the housing and disposed on the exterior of the housing opposite the side in which the cutout is formed, said flexible guiding means having only a single lumen extending therethrough, said flexible drive means extending through said single lumen, means coupled to the balloon for establishing communication between the balloon and the single lumen, means including a balloon inflation port coupled to the flexible guiding means and in communication with the single lumen in the guiding means for introducing an inflatable medium into the single lumen for inflating the balloon-like member and fluid-tight means carried by the housing and the flexible guiding means for establishing proximal and distal seals about the flexible drive means so that the single lumen provides a fluid-tight passage between the balloon inflation port and the balloon.
A device comprising:
- flexible guiding means having a lumen extending from a proximal end to a distal end thereof;
- a housing mounted on the distal end of the flexible guiding means, said housing having a cutout therein;
- flexible drive means extending through the lumen of the flexible guiding means and into the housing;
- a work performing device secured to the flexible drive means;
- inflatable means carried by the housing;
- means coupling the inflatable means to the lumen;
- and
- means for establishing fluid-tight sealing between the lumen and the interior of the housing, said means allowing the passage of the drive means therethrough.
A device comprising:
- an elongate flexible tubular member having a lumen extending from a proximal end to a distal end thereof;
- a housing having a cutout therein mounted on the distal end of the flexible tubular member proximate an opening of the lumen;
- a flexible drive cable extending through the lumen of the flexible tubular member and into the housing;
- a work performing device secured to the distal end of the flexible drive cable within the housing;
- an inflatable balloon secured to the exterior of the housing;
- means for connecting the balloon to the lumen in the flexible tubular member whereby the balloon can be inflated and deflated;
- and
- means for forming a fluid-tight seal between the flexible tubular member and the interior of the housing, whereby the flexible drive cable can pass from the lumen of the tubular member to the housing while maintaining said
- fluid-tight seal.
Dependencies are inferred from the claim text.