Steerable catheters
AssigneeHansen Medical, Inc.
InventorsEnrique Romo, Jeffery B. Alvarez, Francis Macnamara, Gene Reis
Life of this patent
Estimating the term…
Abstract
Medical devices having an elongated steerable member are described herein. In one embodiment, a device includes an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections, a first coil having a distal portion, and a proximal portion, the proximal portion of the first coil being slidable relative to the proximal section of the elongated body, and being closer to a wall of the elongated body than to an axis of the elongated body, wherein a lengthwise portion of the distal portion of the first coil is anchored to the distal section of the elongated body, and a first steering wire located within a lumen of the first coil.
Claims46
An elongated medical device, comprising:
- an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections;
- a first coil having a distal portion with an open pitch, and a proximal portion with a closed pitch, the proximal portion of the first coil being slidable relative to the proximal section of the elongated body, and being closer to a wall of the elongated body than to an axis of the elongated body, wherein a lengthwise portion of the distal portion of the first coil is anchored to the distal section of the elongated body;
- and
- a first steering wire located within a lumen of the first coil.
An elongated medical device, comprising:
- an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections;
- a first coil, wherein at least a lengthwise portion of the first coil is anchored to the distal section of the elongated body;
- a second coil in the proximal section of the elongated body that is slidable relative to the proximal section of the elongated body, wherein the second coil is axially aligned with the first coil along a length of the elongated body;
- and
- a steering wire located within a lumen of the first coil and within a lumen of the second coil.
A method performed using an elongated medical device, comprising:
- providing the elongated medical device having
- an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections,
- a first coil having a distal portion with an open pitch and a proximal portion with a closed pitch, and
- a first steering wire located within a lumen of the first coil;
- and
- applying tension to the first steering wire, while allowing the proximal portion of the first coil to slide relative to the proximal section of the elongated body;
- wherein while the tension is being applied to the first steering wire, a lengthwise portion of the distal portion of the first coil is prevented from being moved relative to the distal section of the elongated body.
An elongated medical device, comprising:
- an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections, wherein the distal section has a tapered profile;
- a first coil having a distal portion anchored to the distal section of the elongated body, and a proximal portion slidable relative to the proximal section of the elongated body;
- a first steering wire located within a lumen of the first coil;
- a second coil having a distal portion anchored to the distal section of the elongated body;
- a second steering wire located within a lumen of the second coil;
- a control ring located at the distal section of the elongated body;
- and
- a spine located in the elongated body, wherein the first coil and the second coil are located radially away from an axis of the spine.
Dependencies are inferred from the claim text.