Self-cleaning drug delivery catheter and storage bladder

Details Self-cleaning drug delivery catheter and storage bladder Self-cleaning drug delivery catheter and storage bladder

1982-08-02

1985-04-09

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 20, 134139, 310800, A61M 2500

Patent

active

045099472

ABSTRACT:
A drug delivery catheter and storage bladder adapted for use in an implantable drug delivery system. The catheter and bladder are provided with piezoelectric layers adapted to be responsively coupled to a source of ultrasonic electrical signals. When so coupled, vibration of the piezoelectric layer dislodges any accumulation of crystallized drugs within the catheter and bladder.

REFERENCES:
patent: 2989725 (1961-06-01), Miller
patent: 3595241 (1971-07-01), Sheridan
patent: 3680544 (1972-08-01), Shinnick et al.
patent: 3830240 (1974-08-01), Antonevich et al.
patent: 3938502 (1976-02-01), Bom
patent: 4192294 (1980-03-01), Vasilevsky et al.
patent: 4283461 (1981-08-01), Wooder et al.

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