Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-03-15
1998-03-03
Rimell, Sam
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 93, 604131, 604140, A16M 3700
Patent
active
057229570
ABSTRACT:
The invention concerns an implantable infusion pump for the dosed administration of medication into the human body, comprising a pump chamber which is formed by a lower chamber part and an upper chamber part connected thereto, whereby the pumping chamber is divided into two subchambers by a gas impermeable flexible partition, the first subchamber is delimited by the upper chamber part and the flexible partition and is designed as a reservoir for medicinal solutions, the upper chamber part has a refilling opening which is sealed by at least one piercable septum and the reservoir for medicinal solutions is connected via an outlet opening and possibly an outlet reduction arrangement with an outlet catheter, and the second subchamber is delimited by the lower chamber part and the flexible partition and is designed as a pressure chamber to accommodate the hexafluorobutane used as a propellant, in particular 1,1,1,4,4,4-hexafluorobutane. The implantable infusion pump according to the invention is without problems from a safety standpoint, has a pumping rate independent of the medication volume, a relatively small temperature gradient, is safe and simple to handle, medication compatible, simple and cost effective to produce and consists of biocompatible material and mutually compatible materials.
REFERENCES:
patent: 4714462 (1987-12-01), DiDomenico
patent: 4784648 (1988-11-01), Sing et al.
patent: 4902839 (1990-02-01), Bielefeldt et al.
patent: 4931050 (1990-06-01), Idriss
patent: 4954666 (1990-09-01), Bielefeldt et al.
patent: 5207645 (1993-05-01), Ross et al.
patent: 5242406 (1993-09-01), Gross et al.
patent: 5382236 (1995-01-01), Otto et al.
patent: 5514103 (1996-05-01), Srisathapat et al.
Fresenius AG
Racunas Robert V.
Rimell Sam
LandOfFree
Implantable 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 Implantable infusion pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable infusion pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2244631