Inflatable balloon and cover
AssigneeW. L. Gore & Associates, Inc.
InventorsDeenu G. Kanjickal, James J. Nickerson, Thomas G. Triebes
Life of this patent
Estimating the term…
Abstract
The present disclosure describes implantable medical devices comprising covers, such as a balloon cover. Such devices can comprise a first layer of a porous polymeric material, such as ePTFE, surrounded by layers of a porous polymeric material having an imbibed elastomer, such as polyurethane. The cover can be used to assist in deployment of an expandable implant, such as a stent-graft, within the body of the patient.
Claims25
A medical balloon comprising an outer cover of a continuously wrapped sheet forming an innermost porous polymer layer and a composite layer comprising a porous polymer imbibed with an elastomeric component.
An outer cover for a medical balloon comprising at least one pleat aligned along at least a portion of a longitudinal axis.
A catheter assembly comprising:
- a catheter tube;
- a balloon coupled to the catheter tube and comprising at least one pleat when in a collapsed configuration;
- and
- an outer cover coaxially surrounding the balloon comprising at least one pleat, wherein an inner surface of the outer cover substantially conforms to an outer surface of the balloon.
A method of manufacturing a cover comprising:
- imbibing a portion of a first surface of a porous polymeric sheet with an elastomer to form an imbibed zone and an non-imbibed zone;
- wrapping the porous polymeric sheet on a mandrel such that the non-imbibed zone contacts a second surface of the porous polymeric sheet to form a first polymeric layer;
- and
- wrapping the porous polymeric sheet on the mandrel such that the imbibed zone contacts the second surface to form at least one composite layer comprising a porous polymer imbibed with an elastomeric component.
Dependencies are inferred from the claim text.