Syringe pump
US6500151B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe pump has an arm swung against the barrel of the syringe. The arm is coupled to a strip mask having a row of transparent apertures of differing length. The mask extends above a CCD array of sensing elements and below a concave mirror, which produces a collimated beam of radiation on the mask from an LED. The length of sensing elements exposed to radiation through an aperture in the mask gives an approximate indication of barrel size; the position of an edge of the aperture gives an accurate indication. The pump compares the barrel size with information relating size to syringe type and produces an indication of syringe type on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.