Device for securing an object to a surface by vacuum
First Claim
1. A vacuum electrode assembly having a vacuum chamber for communicating with a vacuum source and an absorber adapted to take up contaminants from a surface against which the assembly holds an electrode, the absorber comprising:
- an absorbing element held within the vacuum chamber and having a first side for facing the electrode and the surface and a second side for communicating with the vacuum source; and
a non-absorbing element for preventing the absorbing element from transporting the contaminants from a region of the surface adjacent the electrode and permitting the absorbing element to transport contaminants from the surface not adjacent the electrode as vacuum is applied to the vacuum chamber.
0 Assignments
0 Petitions
Accused Products
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.
17 Citations
4 Claims
-
1. A vacuum electrode assembly having a vacuum chamber for communicating with a vacuum source and an absorber adapted to take up contaminants from a surface against which the assembly holds an electrode, the absorber comprising:
-
an absorbing element held within the vacuum chamber and having a first side for facing the electrode and the surface and a second side for communicating with the vacuum source; and a non-absorbing element for preventing the absorbing element from transporting the contaminants from a region of the surface adjacent the electrode and permitting the absorbing element to transport contaminants from the surface not adjacent the electrode as vacuum is applied to the vacuum chamber. - View Dependent Claims (2, 3, 4)
-
Specification