Metabolite sensor including a chemical concentration sensitive flow controller for a drug delivery system
US4705503A · kind A · utility
162Cited by
11References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1986 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Feb 3, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for the measurement of a metabolite in a physiological fluid is disclosed which comprises a catheter which includes an internal metabolite sensor downstream from a semipermeable region where dynamic equilibrium is attained between the external metabolite and a higher concentration of the same metabolite contained in an infusate which is flowed through the catheter. The changing metabolite concentration also can open and close a chemical valve to control the codelivery of a drug through the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.