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US 11,690,978 B2Granted
Catheter for ultrasound-guided delivery
AssigneeMedtronic, Inc.
InventorsElliot Schmidt, Joshua Packer, William R. Schildgen
Life of this patent
Estimating the term…
Abstract
A catheter including one or more echogenic members facilitate guiding the catheter to a selected locations within a patient using ultrasound imaging. The echogenic members may include expandable members, such as balloons, be positioned near a distal end of the catheter. The echogenic members include an echogenic material, such as a coating or a fluid, that is configured to enhance the diffuse sound scattering of the echogenic member. An expanded echogenic member is detectable using ultrasound imaging.
Claims32
A catheter comprising:
- an elongate body extending along a longitudinal axis from a proximal end to a distal end and defining a lumen extending longitudinally within the elongate body, the elongate body comprising a proximal portion and a distal portion;
- and
- an echogenic member having, in an expanded configuration, at least one of a shape or a size determined by at least one of an axial resolution, a lateral resolution, or an elevational resolution of an ultrasound device, the echogenic member being positioned on the distal portion of the elongate body, wherein the echogenic member is configured to controllably expand from a collapsed configuration to the expanded configuration, and wherein the echogenic member is configured to diffusely scatter a soundwave.
A kit comprising:
- a catheter comprising:
- an elongate body extending along a longitudinal axis from a proximal end to a distal end and defining a lumen extending longitudinally within the elongate body, the elongate body comprising a proximal portion and a distal portion;
- and
- an echogenic member having, in an expanded configuration, at least one of a shape or a size determined by at least one of an axial resolution, a lateral resolution, or an elevational resolution of an ultrasound device, the echogenic member being positioned on the distal portion of the elongate body, wherein the echogenic member is configured to controllably expand from a collapsed configuration to the expanded configuration, and wherein the echogenic member is configured to diffusely scatter a soundwave;
- and
- a medical device sized for delivery out of the distal end of the elongate body and configured for at least one of therapy delivery or sensing.
3 more elements
A method comprising:
- advancing a catheter toward a selected location within a patient, wherein the catheter comprises:
- an elongate body extending along a longitudinal axis from a proximal end to a distal end and defining a lumen extending longitudinally within the elongate body, the elongate body comprising a proximal portion and a distal portion;
- and
- an echogenic member positioned on the distal portion of the elongate body;
- the method further comprising:
- determining at least one of a shape or a size of the echogenic member in an expanded configuration of the echogenic member, based on at least one of an axial resolution, a lateral resolution, or an elevational resolution of an ultrasound device;
- expanding the echogenic member from a collapsed configuration to the expanded configuration, wherein the echogenic member is configured to diffusely scatter a soundwave;
- identifying at least one of a position, an orientation, or a trajectory of the distal portion of the catheter relative to the selected location based on a soundwave reflected by the echogenic member;
- and
- advancing a medical device through the lumen and out the distal end of the elongate body to the selected location for at least one of therapy delivery or sensing.
7 more elements
A method comprising:
- forming an elongate body extending along a longitudinal axis from a proximal end to a distal end and defining a lumen extending longitudinally within the elongate body, the elongate body comprising a proximal portion and a distal portion, wherein the lumen is configured to receive a medical device for at least one of therapy delivery or sensing;
- forming, on the distal portion of the elongate body, an echogenic member configured to controllably expand from a collapsed configuration to an expanded configuration, wherein the echogenic member is configured to diffusely scatter a soundwave;
- and
- determining at least one of a shape or a size of the echogenic member in the expanded configuration, based on at least one of an axial resolution, a lateral resolution, or an elevational resolution of an ultrasound device.
1 more element
Dependencies are inferred from the claim text.