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US 2014/0155824 A1Published application
Drug Delivery Medical Devices
AssigneeAbbott Cardiovascular Systems Inc.
InventorJohn E. Papp
Life of this patent
Estimating the term…
Abstract
Medical devices for delivering a bioactive agent and methods of use thereof are provided. The device includes a balloon having micro-needles for delivery of the bioactive agent.
Claims9
A medical device, comprising:
- a catheter;
- a balloon disposed at an end of the catheter, the balloon having a first balloon membrane and a second balloon membrane;
- and
- micro-needles disposed in the first balloon membrane, the micro-needles including a hollow area in which a drug can reside, wherein the second balloon membrane is configured to penetrate into the hollow areas so as to push the drug out of the hollow area of the micro-needles for application of the drug to a tissue where the balloon has been positioned and expanded, and wherein the first balloon membrane is in fluid communication with a first fluid path for expansion of the first balloon membrane and the second balloon membrane is in fluid communication with a second fluid path, separate from the first fluid path, for expansion of the second balloon membrane into the hollow area to push the drug out of the hollow area of the micro-needles.
1 more element
A medical device, comprising:
- a catheter;
- a balloon disposed at an end of the catheter, the balloon having a first balloon membrane and a second balloon membrane;
- and
- micro-needles disposed in the first balloon membrane, the micro-needles including a hollow area in which a drug can reside, wherein the second balloon membrane is configured to push the drug out of the hollow area of the micro-needles for application of the drug to a tissue where the balloon has been positioned and expanded, wherein the second balloon membrane resides within the hollow area of the micro-needles and functions as a piston-like device to push the drug out of the micro-needles upon application of a pressure to the second balloon membrane.
1 more element
A medical device, comprising:
- a catheter;
- a balloon disposed at an end of the catheter, the balloon having a first balloon membrane and a second balloon membrane;
- and
- micro-needles disposed in the first balloon membrane, the micro-needles including a hollow area in which a drug can reside, wherein the second balloon membrane is configured to push the drug out of the hollow area of the micro-needles for application of the drug to a tissue where the balloon has been positioned and expanded wherein the second balloon membrane is a flexible membrane positioned beneath and in contact with the first balloon membrane, the first balloon membrane is configured to apply a pressure against a vessel wall when a pressure is applied inside of the balloon and the second balloon membrane is configured to penetrate into ends of the micro-needles when a pressure is applied inside of the balloon.
1 more element
Dependencies are inferred from the claim text.