Apparatus and method for measuring the amount of fluid contained in an implantable medical device
US6315769A · kind A · utility
80Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1684
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable pump apparatus and method of operating the implantable pump for infusing a fluid into a body are described. The implantable pump apparatus includes a support member. A pressure sensitive resistor member is disposed on a first side of the support member. A spring member includes a first end which is adjacent to the pressure sensitive resistor member. An expandable fluid reservoir member includes a first end which is adjacent to a second end of the spring member. The level of fluid within the expandable fluid reservoir member is determined by measuring a force applied to the pressure sensitive resistor member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.