Medical handpiece with autoclavable switch
US5769211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/014
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A handle assembly of a medical instrument has a handle with an axis extending from a proximal end of the instrument toward a distal end thereof; and an electrical circuit incorporated at least partially in the handle for controlling an application of an action to a patient via the medical instrument. The circuit has a first electrical contact and a second electrical contact each projecting from a surface of the handle. The electrical contacts are spaced from one another. An actuator ring is slidably disposed on the handle and surrounding the same for motion in alternately opposite directions along the handle under the control of an operator. A bridging electrical contact is disposed on the ring for conductively connecting the first and second electrical contacts at a first predetermined longitudinal position of the ring along the handle, thereby closing the circuit at that position of the ring, and for opening the circuit at another longitudinal position of the ring along the handle. Although the invention has been described in terms of particular embodiments and applications, one of ordinary skill in the art, in light of this teaching, can generate additional embodiments and modif…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.