Title :
A new spring-driven implantable drug infusion pump
Author :
Dorman, Frank D. ; Wigness, Bruce D. ; Rohde, Thoma D. ; Beling, William L. ; Buchwald, Henry
Author_Institution :
Minnesota Univ., Minneapolis, MN, USA
Abstract :
An implantable infusion pump which uses elastomer spring pressure to provide constant-rate drug delivery is described. Desirable features of the design are its low-cost construction, temperature and pressure insensitivity, high volumetric efficiency, and scale flexibility. Test results for prototype models are reported. Spring performance characteristics appear to be unaffected by long-term implantation. The results indicate that the pump is suitable for multiple-drug-delivery applications requiring more than an infusion port but needing a programmable device
Keywords :
prosthetics; pumps; constant-rate drug delivery; elastomer spring pressure; high volumetric efficiency; long-term implantation; low-cost construction; pressure insensitivity; programmable device; scale flexibility; spring performance characteristics; spring-driven implantable drug infusion pump; temperature insensitivity; Assembly; Costs; Drug delivery; Filters; Prototypes; Reservoirs; Springs; Surges; Temperature; Viscosity;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96328
