Audio analgesic unit
US4082918A · kind A · utility
14Cited by
2References
2Claims
0Family size
Inventors
Key dates
| Filing date | Jan 21, 1977 |
| Grant date | Apr 4, 1978 |
| Priority date | — |
| Expiry date | Jan 21, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An audio analgesic unit for use in masking sounds and substituting another sound which includes earmuffs to be used by a dental patient in which speakers are arranged and connected to a patient operated remote control unit to control the sound levels and a master control unit to override the patient remote control unit and operated by an operator, such as a dentist. A beeper indicates operation mode change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.