Disposable point of use filtration element for purifying air and water supplies to dental handpieces
US5749726A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Mar 2, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A point of use microfiltration device suitable for filtering the cooling water and cooling air supplies to a turbine driven dental handset is a multicompartmental device containing microporous filtration membranes effective to remove particulate matter, particularly microbes, thus protecting the patient from the risk of infection. The device contains passages providing for unrestricted turbine supply and return air, and may be provided with a light path suitable for use with fiber optic light supplies. The device is advantageously constructed to mate with standard multilumen and hand-piece end fittings, and may be disposed of after a single use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.