Back to results
US 2006/0136025 A1Published application
Intra-ventricular substance delivery catheter system
AssigneeAbbott Cardiovascular Systems Inc.
InventorWilliam Webler
Life of this patent
Estimating the term…
Abstract
A guide catheter and a needle catheter are disclosed. The guide catheter construction provides for maximum articulation of the deflectable tip and maximum torque response during rotation. The needle catheter may include a release mechanism that imparts a sudden force to the needle in order to facilitate tissue penetration.
Claims4
1-27. (canceled)
A method comprising:
- inserting a substance delivery system into a body, the substance delivery system comprising a guide catheter and a needle catheter, the needle catheter having a needle movable between a retracted position and a deployed position, a needle shaft assembly, an elastically deformable element coupled to a portion of the needle shaft assembly, and a release mechanism that releasably engages the elastically deformable element when the elastically deformable element is in a position which corresponds to the needle being in the retracted position;
- moving the substance delivery system to a desired position within the body;
- setting the release mechanism to hold the needle in the retracted position;
- releasing the release mechanism when the substance delivery system is in a desired position for insertion of the needle into a portion of the body.
1 more element
Dependencies are inferred from the claim text.