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US 6,346,099 B1Granted
Catheter drug delivery system and method for use
AssigneeBioCardia, Inc.
InventorPeter A. Altman
Life of this patent
Estimating the term…
Abstract
A catheter system for injecting therapeutic agents including large molecules into the body. The catheter includes a distensible penetrating element with a distally locating expansion coil and a distally located chamber for holding a therapeutic agent which is to be injected into the body.
Claims6
A catheter comprising:
- an outer catheter body having a retractable sheath, a proximal end and a distal end;
- one or more mechanical pull wires, disposed within the outer catheter body, for steering the catheter body;
- a penetrating tubular element disposed within the retractable sheath of the outer catheter body;
- one or more pull wires attached to the retractable sheath for retracting the sheath to expose the penetrating tubular element;
- and
- a delivery tube running from the proximal end of the outer catheter body to the distal end of the outer catheter body and in communication with the penetrating tubular element.
3 more elements
A catheter comprising:
- a catheter having a distal end and a proximal end;
- a chamber for holding a therapeutic agent, the chamber disposed within the distal end of the catheter, the chamber having a self-sealing wall which is penetrable by an injection needle;
- a penetrating element extending distally from the chamber;
- and
- a pressure source for forcing the therapeutic agent out of the chamber through the penetrating element.
2 more elements
Dependencies are inferred from the claim text.