Ductus side-entry jackets and prosthetic disorder response systems
Provided are means for the direct and continuous connection of a catheter to the lumen of any tubular anatomical structure, or ductus, without medically significant leakage. A port implanted at the body surface with piping to a periductal collar allows drug or radionuclide delivery that bypasses the upstream lumen. The port allows injection, infusion, or attachment of an automatic ambulatory pump. A superparamagnetic nanoparticle carrier-bound drug, for example, can be introduced into the lumen to pass downstream until the carrier particles, with or without the drug still bound, are drawn into the lumen wall by a magnetized jacket surrounding the ductus. Such constitutes a method of drug targeting whereby a segment of a vessel or the territory supplied by a branch of that segment can be circumscribed for exposure to the drug. A jacket with side-entry connector positioned in surrounding relation to a lesion requiring treatment can itself be magnetized.
1 . A collar for encircling a tubular anatomical structure, said collar having a side tube to deliver drugs, pass cabled transcatheteric devices, and extract luminal contents.
2 . A collar according to claim 1 which incorporates a magnet to assist in the detention and extraction of magnetically susceptible luminal contents.
3 . A collar according to claim 1 , said collar entered through a side tube with sharp front adductal edge such that placing said collar about said tubular anatomical structure allows said front sharp edge of said side tube to be used a trepan to excise a plug of tissue from the side said tubular anatomical structure thereby to join the lumina of said side tube and said tubular anatomical structure as a continuous passageway.
4 . A collar according to claim 1 , said collar extended in the longitudinal axis and augmented to include a magnetized layer in concentric relation to said collar.
5 . A collar according to claim 1 , said collar extended in the long axis and augmented to include a radiation shield in concentric relation to said long axis of said collar.
6 . A collar according to claim 1 wherewith the pump supplying fluid medicinals to said collar is controlled according to a microcontroller program and in response to the output of at least one physiological parameter sensor, said program and said sensor related through a closed feedback loop.
7 . A collar according to claim 1 mounting an electromagnet with pole oriented to exert a tractive force as to diametrically intersect with the longitudinal axis of said collar.
8 . A collar according to claim 7 assisted by a separate electromagnet to draw a drug released from a collar according to claim 1 into a bodily organ.