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:
Dec. 02, 1997
Filed:
Jul. 10, 1995
Howard J Leonhardt, Davie, FL (US);
World Medical Manufacturing Corporation, Sunrise, FL (US);
Abstract
A flexible and kink-proof intra-cavity delivery catheter for precise placement and injection of therapeutic agent(s) into and/or through the wall of a body cavity at a precise treatment site with even distribution throughout. One or more needle assemblies are disposed around a calibrated balloon which, when inflated, brings each needle assembly into contact with and enables the piercing of the cavity wall to a calibrated depth. Each needle assembly consists of a plurality of tissue insertion needles along the longitudinal axis of the needle assembly. Precise amounts of the therapeutic agent are then quickly delivered through the needle assembly directly into the diseased body tissue. When the calibrated balloon is deflated, retraction members pull the needle assemblies back into the catheter body for catheter repositioning or catheter withdrawal. The problems of overtreatment and undertreatment of the treatment site and the body with therapeutic agents, uneven distribution of therapeutic agents within the diseased treatment site, additional trauma to the treatment site, and long term blockage of body fluid distal to the treatment site via known drug delivery catheters are thereby eliminated.