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US 2026/0026952 A1Published application
Inflatable balloon and cover
AssigneeW. L. Gore & Associates, Inc.
InventorsDeenu G. Kanjickal, James J. Nickerson, Thomas G. Triebes
Life of this patent
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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.
Claims15
A method for treating a patient comprising:
- providing a delivery catheter including an inner balloon and an outer cover on a distal end of the delivery catheter, the inner balloon in a delivery configuration in which a central region of the inner balloon is rolled or folded around the distal end, and one or more stent members mounted on the outer cover over at least a portion of the central region of the inner balloon;
- introducing the distal end into a body lumen within the patient's body;
- and
- expanding the inner balloon to an enlarged configuration in which the inner balloon at least partially unrolls or unfolds, thereby radially expanding the outer cover and the one or more stent members thereon,
- wherein the outer cover includes one or more features to reduce friction between the outer cover and the inner balloon to prevent non-radial forces generated when the inner balloon unrolls or unfolds from being substantially transferred to the one or more stent members during expansion.
2 more elements
A method of treating a patient comprising:
- providing a delivery catheter including a delivery assembly on a distal end of the delivery catheter, the delivery assembly including an inner balloon, an outer cover applied over the inner balloon, and an expandable endoprosthesis positioned over the outer cover;
- introducing the distal end into a body lumen within the patient's body;
- and
- expanding the inner balloon from a delivery configuration to an enlarged configuration in which the inner balloon radially expands the outer cover and the expandable endoprosthesis,
- wherein the outer cover includes 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 a portion of a length of the outer cover includes the elastomeric material.
2 more elements
A method of treating a patient comprising:
- providing a delivery catheter including a delivery assembly on a distal end of the delivery catheter, the delivery assembly including an inner balloon, an outer cover coaxially surrounding the inner balloon, and an expandable endoprosthesis coaxially surrounding the outer cover, wherein the delivery assembly is in a reduced diameter delivery configuration about the distal end;
- introducing the distal end into a body lumen within the patient's body;
- and
- expanding the delivery assembly to an expanded diameter deployed configuration, wherein the inner balloon radially expands the outer cover and the expandable endoprosthesis, and wherein the outer cover has a first portion imbibed with an elastomeric material and a second portion non-imbibed with the elastomeric material such that the outer cover elastically expands.
1 more element
Dependencies are inferred from the claim text.