Electrically controllable, non-occluding, body implantable drug

Details Electrically controllable, non-occluding, body implantable drug Electrically controllable, non-occluding, body implantable drug

1989-10-06

1991-08-20

Kamm, William E.

Surgery

Controlled release therapeutic device or system

Implanted dynamic device or system

6048921, A61N 130

Patent

active

050411071

ABSTRACT:
An implantable apparatus for continuous or periodic introduction of a drug to a desired release point in the body comprises an implantable power source and an elongated flexible plastic tubular catheter having a lumen filled with the drug to be delivered and containing therein a first device electrode. The distal end of the catheter is closed and located near the distal end is a port which extends through the wall of the catheter to communicate with the lumen. Just proximal of the port is a surface electrode mounted on the exterior wall of the catheter body. Extending through the catheter and joined to the drive electrode and the surface electrode are conductors which couple those electrodes to the implanted power source. Energization of the electrodes with a predetermined direct current potential causes a flow of the ionized drug molecules out through the port and into the area surrounding the surface electrode.

REFERENCES:
patent: 3731681 (1973-05-01), Blackshear et al.
patent: 3894538 (1975-07-01), Richter
patent: 3896806 (1975-07-01), Wichterle
patent: 3923060 (1975-12-01), Ellinwood, Jr.
patent: 3923426 (1975-12-01), Theeuwes
patent: 3951147 (1976-04-01), Tucker et al.
patent: 4014334 (1977-03-01), Theeuwes et al.
patent: 4140121 (1979-02-01), Kuhl et al.
patent: 4373527 (1983-02-01), Fischell
patent: 4639244 (1987-01-01), Rizk et al.
patent: 4744787 (1988-05-01), Phipps et al.
Studies on Surgical Adjuvant Chemotherapy for Colorectal Cancer and Administration of Neocarzinostatin into the Lumen of the Colon or Rectum Using a Double Balloon Catheter and Iontophoresis, by Shunji Akao, Arch. Jpn. Chir 50:67-82, Jan. 1981.
Drug Pacemakers in the Treatment of Heart Block by Judah Folkman et al, Annals of The New York Academy of Sciences, 1964, p. 857.
Improved Catheter Patency by Means of a Simple Check-Valve Mechanism by Rupp et al, vol. XXIX, Trans. Am. Soc. Artif. Intern. Organs, 1983, p. 275.

Affiliated with

Also associated with

Rating

Electrically controllable, non-occluding, body implantable drug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically controllable, non-occluding, body implantable drug , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically controllable, non-occluding, body implantable drug will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1005709