Spring driven infusion pump

Details Spring driven infusion pump Spring driven infusion pump

1987-09-23

1988-09-20

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

6048911, 604134, 128DIG12, A61M 520, A61M 100

Patent

active

047722630

ABSTRACT:
An implantable infusion pump (20) for infusing drugs or other chemicals or solutions into the body. A flexible spring diaphragm (25) forms an outer back wall portion (26) of a housing (22) of the infusion pump (20). The spring diaphragm (25) applies substantially constant force over a range of displacement and communicating internal body pressure to the drug chamber (30) so as to maintain a substantially uniform pressure difference between the drug chamber (30) and the internal body pressure.

REFERENCES:
patent: 2815152 (1957-12-01), Mills
patent: 2947470 (1960-08-01), Ruben et al.
patent: 3023750 (1962-03-01), Baron
patent: 3731681 (1973-05-01), Blackshear et al.
patent: 3951147 (1976-04-01), Tucker et al.
patent: 4056095 (1977-11-01), Rey et al.
patent: 4299220 (1981-11-01), Dorman
patent: 4373527 (1983-02-01), Fischell
patent: 4447224 (1984-05-01), DeCant, Jr. et al.
patent: 4487603 (1984-12-01), Harris
patent: 4557726 (1985-12-01), Reinicke
patent: 4718893 (1988-01-01), Dorman et al.
PCT Application No. PCT/US80/00176.
Implantable Infusion Pumps, Buchwald and Rohde, Department of Surgery, University of Minnesota, .COPYRGT.1984, Year Book Medical Publishers, Inc., pp. 177-221.
Implantable Drug Infusion Devices, Surgical Rounds, Buchwald and Rohde, Department of Surgery, University of Minnesota, Jul. 1984, pp. 16-23.
Selected pages from a thesis entitled, "A Methodical Design Study of Miniature Perfusion Devices for Chemotherapy of Cancer of the Head and Neck", Soden, Department of Mechanical Engineering, Manchester College of Science and Technology, Oct. 1965, pp. 165-166 and 229-231, and FIGS. 77(a) and 77(b).
II: The Design of Flat Diaphragms, Chapter 18 entitled, "Convex Diaphragms-Snap Action, pp. 201-206.
Mechanical Springs, Chapter XIV entitled, "Initially Coned Disk (Belleville) Springs, pp. 238-262.

Affiliated with

Also associated with

Rating

Spring driven infusion pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring driven infusion pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring driven infusion pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1746183