Drug infusion device with tissue identification using pressure sensing
US7449008B2 · kind B2 · utility
32Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2004 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Aug 27, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3344
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller to determine the exit pressure of the fluid expelled by the device. This exit pressure is then used to identify the kind of tissue in which the injection is being introduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.