Wearable, self-contained drug infusion device
US6589229B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/906
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wearable, self contained drug infusion device is disclosed that is capable of achieving the precise flow rate control needed for dose-critical drugs such as insulin. In preferred embodiments of the device, piezoelectrically-actuated valve or pump structures are used in combination with thermal flow sensors and closed-loop control circuits for providing the desired flow rate control. The device has a two-part construction in which the more expensive electronic components are housed in a reusable portion and the fluid delivery components are housed in a separable disposable portion. The invention may also utilize a wireless unit for controlling the operation of the drug infusion device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.