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US 2017/0319818 A1Published application
Drug delivery device
AssigneeCook Medical Technologies LLC
InventorsAngela R. Dowell, Keith Milner
Life of this patent
Estimating the term…
Abstract
The present disclosure provides for a fluid delivery device for a body vessel and a method of use. The fluid delivery device may have an elongate member having a proximal end extending along the longitudinal axis to a closed distal end. The elongate member may also have an inner wall defining a fluid delivery lumen and a wire guide lumen. The elongate member may have a tapered region and a distal portion between the proximal and distal ends. The device may have a first state for device delivery to the treatment site.
Claims20
A device for fluid delivery in a body vessel having a vessel wall, the device comprising:
- an elongate member having a proximal end extending along a longitudinal axis to a distal end, the elongate member having an inner wall disposed at the proximal end and distally extending to the distal end, the inner wall defining a fluid delivery lumen and a wire guide lumen, the elongate member having a tapered region between the proximal and distal ends, the tapered region having a tapered diameter distally decreasing along the longitudinal axis such that the fluid delivery lumen has a first cross-sectional area proximal the tapered region and a second cross-sectional area distal the tapered region, the first cross-sectional area being greater than the second cross-sectional area, the elongate member having a distal portion distally extending from the tapered region to the distal end and having a plurality of holes formed therethrough, the distal portion being non-spiral in a first state for device delivery and being spiral in a second state for fluid delivery;
- and
- a wire guide disposed in the wire guide lumen, one of the wire guide and the distal portion comprising a shape-memory material such that the distal portion moves between the first state and the second state, providing fluid delivery from the fluid delivery lumen and through the holes of the distal portion to the vessel wall.
A device for fluid delivery in a body vessel having a vessel wall, the device comprising:
- an elongate member having a proximal end extending along a longitudinal axis to a distal end, the elongate member having an inner wall disposed at the proximal end and distally extending to the distal end, the inner wall defining a fluid delivery lumen and a wire guide lumen being within the fluid delivery lumen, the elongate member having an outer wall formed to close the fluid delivery lumen at the distal end and having a distal portion distal the proximal end, the distal portion extending to the distal end and having a plurality of holes formed therethrough, the distal portion being non-spiral in a first state for device delivery and being spiral in a second state for fluid delivery;
- and
- a wire guide disposed in the wire guide lumen, one of the wire guide and the distal portion comprising a shape-memory material such that the distal portion moves between the first state and the second state, providing fluid delivery from the fluid delivery lumen and through the holes of the distal portion to the vessel wall.
A method of fluid delivery in a body vessel having a vessel wall, the method comprising:
- disposing a medical device in the body vessel, the device comprising;
- an elongate member having a proximal end extending along a longitudinal axis to a distal end, the elongate member having an inner wall disposed at the proximal end and distally extending to the distal end, the inner wall defining a fluid delivery lumen and a wire guide lumen, the elongate member having a tapered region between the proximal and distal ends, the tapered region having a tapered diameter distally decreasing along the longitudinal axis such that the fluid delivery lumen has a first cross-sectional area proximal the tapered region and a second cross-sectional area distal the tapered region, the first cross-sectional area being greater than the second cross-sectional area, the elongate member having a distal portion distally extending from the tapered region to the distal end and having a plurality of holes formed therethrough, the distal portion being non-spiral in a first state for device delivery and being spiral in a second state for fluid delivery;
- and
- a wire guide disposed in the wire guide lumen, one of the wire guide and the distal portion comprising a shape-memory material such that the distal portion moves between the first state and the second state, providing fluid delivery from the fluid delivery lumen and through the holes of the distal portion to the vessel wall;
- moving the wire guide in one of a proximal direction and a distal direction to move the distal portion from the first state to the second state;
- and
- delivering a fluid through the fluid delivery lumen and through the plurality of holes of the distal portion to the vessel wall.
4 more elements
Dependencies are inferred from the claim text.