Smoke evacuator system for use in laser surgery
US4701193A · kind A · utility
319Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1985 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Sep 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2273/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A smoke evacuator system for by-products of laser surgery including an inline construction of a motor and a filter assembly mounted on opposite sides of a mounting plate. The filter fits in a filter duct and the temperature of the flow between the filter and the vacuum chamber of the vacuum pump can be monitored to determine the clog condition of the filter. The system includes electronic circuitry to activate an alarm device to indicate to the user that the filter is clogged and further circuitry is provided to shutoff the motor after a long period of operation with a clogged filter to prevent damage to the system by overheating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.