The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2003
Filed:
Jun. 13, 2001
Robert A. VanTassel, Excelsior, MN (US);
Robert S. Schwartz, Rochester, MN (US);
David R. Holmes, Rochester, MN (US);
Tricardia, L.L.C., Excelsior, MN (US);
Abstract
A catheter for injecting medicants into the endocardium, myocardium or other portions of the cardiovascular system is presented where the catheter has apertures therein for ejection and retraction of a needle. The catheter is designed for the apertures in the catheter to press against the tissue to be injected in the heart while the heart is beating. A needle for inserting a prescribed dose of a medicant is ejected through the aperture and a plunger, pump, or diaphragm is moved to deliver a dose of the medicant to tissue adjacent the aperture. By use of the catheter gene therapy, wherein a small does of a gene are injected into the endocardium of the right or left ventricle, can be used to grow new blood vessels in the injected area of a damaged heart. The apertures in the catheter can be spaced at a prescribed distance for the dosage of medicant to form a precise pattern of injections in the area to be treated. The catheters may be used for any treatments of a human or animal patient where injections are required in the heart, veins or arteries of the cardiovascular system.