Patient-controlled analgesia device
US5232448A · kind A · utility
27Cited by
18References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Oct 25, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1405
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for the patient-controlled delivery of a beneficial agent comprising a dose reservoir for receiving and storing a beneficial agent, inlet means to and outlet means from the dose reservoir and pump means operative in response to an external force supplied to the pump means for drawing beneficial agent into the dose reservoir at a relatively constant rate and for discharging the beneficial agent out of the dose reservoir through the outlet means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.