Patent ID: 11911581
Assignee: CONTROLLED DELIVERY SYSTEMS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A method for closing a portion of a diseased vein in a patient, comprising:
accessing a portion of a venous vasculature of the patient with a balloon therapy device, having a balloon that is compliant;
advancing the balloon therapy device into a portion of the diseased vein;
inflating the balloon into a cylindrical shape at a proximal end of a closure zone to transition a mechanical abrasion structure from a stowed configuration into a partially deployed configuration in contact with a wall of the diseased vein;
while maintaining the mechanical abrasion structure in the partially deployed configuration, advancing the balloon therapy device along the diseased vein to a distal end of the closure zone;
inflating the balloon to occlude the diseased vein while aspirating a portion of fluid from within the closure zone;
injecting a closure agent into the closure zone after aspirating the portion of the fluid within the closure zone; and
continuing to occlude the diseased vein with the balloon until a closure agent dwell time has elapsed.