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US 12,447,031 B2Granted
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.
Claims10
An apparatus for treating a body lumen comprising:
- an elongate tubular member including a proximal end, a distal end sized for introduction into the body lumen, and a first inflation lumen extending between the proximal and distal ends;
- an inner balloon on the distal end of the elongate member formed from substantially inelastic material and defining a central region, the inner balloon expandable from a delivery configuration in which the inner balloon is rolled or folded around the distal end and an enlarged configuration in which the central region defines a substantially uniform diameter when inflation media is introduced to the first inflation lumen;
- an outer cover on the distal end overlying at least a portion of the inner balloon, the outer cover including an elastomeric material such that the outer cover expands elastically when the inner balloon is expanded from the delivery configuration to the enlarged configuration, wherein the outer cover includes an imbibed zone including the elastomeric material and a non-imbibed zone;
- and a plurality of stent members disposed around an outer surface of the outer cover and spaced apart from one another and aligned over at least a portion of the central region of the inner balloon.
1 more element
An apparatus for treating a body lumen comprising:
- an elongate tubular member including a proximal end, a distal end sized for introduction into the body lumen, and a first inflation lumen extending between the proximal and distal ends;
- an inner balloon positioned on the distal end formed from substantially inelastic material and defining a central region, the inner balloon expandable from a delivery configuration in which the inner balloon is rolled or folded around the distal end and an enlarged configuration in which the central region defines a substantially uniform diameter when inflation media is introduced into the first inflation lumen;
- and
- an outer cover on the distal end overlying at least a portion of the inner balloon, the outer cover including an elastomeric material such that the outer cover expands elastically when the inner balloon is expanded from the delivery configuration to the enlarged configuration,
- wherein the outer cover includes an imbibed zone including the elastomeric material and a non-imbibed zone, wherein a plurality of stent members disposed about an outer surface of the outer cover and are spaced apart from one another and aligned over at least a portion of the central region of the inner balloon.
2 more elements
An apparatus for treating a body lumen comprising:
- an elongate tubular member including a proximal end, a distal end sized for introduction into the body lumen, and a first inflation lumen extending between the proximal and distal ends;
- an inner balloon on the distal end of the elongate member formed from substantially inelastic material and defining a central region, the inner balloon expandable from a delivery configuration in which the inner balloon is rolled or folded around the distal end and an enlarged configuration in which the central region defines a substantially uniform diameter when inflation media is introduced to the first inflation lumen;
- an outer cover on the distal end overlying at least a portion of the inner balloon, the outer cover including an elastomeric material such that the outer cover expands elastically when the inner balloon is expanded from the delivery configuration to the enlarged configuration, wherein the outer cover includes an innermost porous polymer layer and at least one composite layer, the composite layer including a porous polymer imbibed with the elastomeric material;
- and a plurality of stent members disposed around an outer surface of the outer cover and spaced apart from one another and aligned over at least a portion of the central region of the inner balloon.
1 more element
Dependencies are inferred from the claim text.