Surgical aspirator and monitor
US4770187A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Jun 29, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3393
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for surgical aspiration and monitoring of the aspirated fluids includes a sealable aspiration bottle supported by an electronic weighing scale on a base stand. The bottle includes tubing connectors joined to a negative gauge pressure source and to an aspirating surgical instrument. A pair of electrodes extend into the bottle and are connected to an electronic circuit which measures the impedance of the fluid/tissue aspirate in the bottle. A microprocessor receives the impedance and net weight data of the aspirate, determines the relative amounts and net weights of fluid and tissue in the aspirate, and displays this information on a visual display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.