Device for securing an object to a surface by vacuum
US5842985A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jun 25, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0217
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reusable electrode holder and associated disposable electrode unit are provided. The holder retains the electrode therein and is connectable to a vacuum source for holding the electrode against a patient's skin with vacuum suction. The holder is also connectable to an electrical lead for connection to the electrode unit. The holder has a resilient cap which is moveable to actuate a valve to open communication through the holder from the vacuum source to a chamber adjacent the skin. To prevent the transfer of contaminants from the skin to reusable parts of the holder, a first contaminant absorber is provided within a housing of the holder and a second contaminant absorber is provided as part of the electrode unit. A second valve can be provided which is actuatable to close vacuum communication when second absorber expands to a threshold contamination condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.