Methods and devices for monitoring fluid of an implantable infusion pump
US7725272B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jul 14, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3389
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and devices are described for monitoring reservoir fluid in an implantable infusion pump. Such methods and devices can be used when the infusion pump has a temperature-dependent component. For example, a method of monitoring reservoir fluid can include obtaining measurements from the reservoir that include corresponding data related to the amount of fluid and temperature in the reservoir. A pair of measurements can be used to monitor the fluid level, or flow rate out of, the reservoir when the corresponding temperatures of the measurements are within a temperature tolerance value. In such an instance, a measured amount difference can be calculated based on the fluid amounts corresponding to the pair of measurements. Other variations of fluid monitoring methods, and implantable infusion pump systems that can perform fluid monitoring, are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.