Nested Balloon Assembly
AssigneeMedtronic Vascular, Inc.
InventorJeffrey Vogel
Life of this patent
Estimating the term…
Abstract
A medical balloon assembly including an inner balloon nested within an outer balloon. The inner balloon has a first target burst pressure at which the inner balloon bursts and the outer balloon has a second target burst pressure at which the outer balloon bursts. A differential between the first and second target burst pressures is sufficient to allow the outer balloon to remain intact upon inflation of the inner and outer balloons causing the inner balloon to burst.
Claims20
A medical balloon assembly comprising an inner balloon nested within an outer balloon, the inner balloon having a first target burst pressure at which the inner balloon bursts and the outer balloon having a second target burst pressure at which the outer balloon bursts, a differential between the first and second target burst pressures being sufficient to allow the outer balloon to remain intact upon inflation of the inner and outer balloons causing the inner balloon to burst.
A medical balloon assembly as set forth in claim 17, wherein the differential between the first and second target burst pressures is at least 2.6 atm.
A method of making a medical balloon assembly, the method comprising:
- forming a first balloon having a first target burst pressure at which the first balloon bursts;
- forming a second balloon having a second target burst pressure at which the second balloon bursts;
- and
- nesting the first balloon in the second balloon, a differential between the first and second target burst pressures being sufficient to allow the second balloon to remain intact upon inflation of the first and second balloons causing the first balloon to burst.
A medical balloon assembly comprising an inner balloon nested within an outer balloon, an interior of the medical balloon assembly being configured to receive air to inflate the inner and outer balloons, the inner and outer balloons being configured such that inflation of the medical balloon assembly to a pressure within the interior that will cause the inner balloon to burst will leave the outer balloon intact.
Dependencies are inferred from the claim text.