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US 2026/0263759 A1Published application
Medical devices for fluid delivery and methods of use and manufacture
OwnerJean C. ORTH, Zaya TUN +2inventors
InventorsJean C. ORTH, Zaya TUN, Robert G. QUINTOS, Vu A. LAM
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Abstract
Medical devices and methods for delivering fluid. The devices include one or more needles for delivering fluid. The methods may optionally include expanding an expandable member such as an inflatable member to expand an expandable scaffold outward toward a lumen wall. The methods may include delivering a first fluid out of one or more needles, and also delivering a secondary fluid (which may be the same type of fluid as the first fluid, or a different type of fluid) from the device.
Claims24
An intravascular apparatus adapted for delivery of fluid, comprising:
- an inflatable balloon having an inflated cylindrical configuration;
- and
- an expandable infusion scaffold comprising one or more primary spines and one or more secondary spines disposed about an outer cylindrical surface of the inflatable balloon,
- the one or more primary spines comprising a plurality of primary radial openings therethrough, each of the plurality of primary radial openings associated with a needle that has a delivery configuration within a primary spine lumen of the primary spine in which a distal tip of the needle is radially constrained by the primary spine, and a deployed configuration in which the needle extends radially outward from the associated primary radial opening after the needle is moved axially relative to the primary spine to facilitate delivery of a primary agent from the needle, and
- the one or more secondary spines comprising one or more secondary openings therethrough that are not associated with a needle and are not adapted to deploy a needle therefrom, and wherein the one or more secondary openings are in communication with a secondary spine lumen to facilitate delivery of a secondary agent from a proximal end of the apparatus, through the secondary spine lumen, and out of the one or more secondary openings,
- wherein the one or more secondary spines have a smaller outer diameter (“OD”) than the one or more primary spines.
3 more elements
(canceled)
(canceled)
An intravascular apparatus adapted for delivery of fluid, comprising:
- an inflatable balloon having an inflated cylindrical configuration;
- and
- an expandable infusion scaffold comprising one or more primary spines and one or more secondary spines disposed about an outer cylindrical surface of the inflatable balloon,
- the one or more primary spines comprising a plurality of primary radial openings therethrough, each of the plurality of primary radial openings associated with a needle that has a delivery configuration within a primary spine lumen of the primary spine in which a distal tip of the needle is radially constrained by the primary spine, and a deployed configuration in which the needle extends radially outward from the associated primary radial opening after the needle is moved axially relative to the primary spine to facilitate delivery of a primary agent from the needle, and
- the one or more secondary spines comprising one or more secondary openings therethrough that are not associated with a needle and are not adapted to deploy a needle therefrom, and wherein the one or more secondary openings are in communication with a secondary spine lumen to facilitate delivery of a secondary agent from a proximal end of the apparatus, through the secondary spine lumen, and out of the one or more secondary openings,
- wherein longitudinal axes of the one or more secondary spines are circumferentially offset from a longitudinal axis of a circumferentially closest primary spine between 0°-35°.
3 more elements
(canceled)
(canceled)
An intravascular apparatus adapted for delivery of fluid, comprising:
- an inflatable balloon having an inflated cylindrical configuration;
- and
- an expandable infusion scaffold comprising one or more primary spines and one or more secondary spines disposed about an outer cylindrical surface of the inflatable balloon,
- the one or more primary spines comprising a plurality of primary radial openings therethrough, each of the plurality of primary radial openings associated with a needle that has a delivery configuration within a primary spine lumen of the primary spine in which a distal tip of the needle is radially constrained by the primary spine, and a deployed configuration in which the needle extends radially outward from the associated primary radial opening after the needle is moved axially relative to the primary spine to facilitate delivery of a primary agent from the needle, and
- the one or more secondary spines comprising one or more secondary openings therethrough that are not associated with a needle and are not adapted to deploy a needle therefrom, and wherein the one or more secondary openings are in communication with a secondary spine lumen to facilitate delivery of a secondary agent from a proximal end of the apparatus, through the secondary spine lumen, and out of the one or more secondary openings,
- wherein at least two of the one or more secondary openings in one of the secondary spines are axially spaced and do not have the same size.
3 more elements
24-31. (canceled)
Dependencies are inferred from the claim text.