Sealing element for a biomedical electrode
First Claim
1. A sealing element for a vacuum electrode device, the sealing element comprising:
- a vacuum cup defining a vacuum chamber adapted to accommodate a skin-engaging portion of an electrode element therein and communicating with a vacuum passageway through which a vacuum can be applied to the vacuum chamber, the vacuum cup having a skin-engageable outer sealing edge disposed around an opening to said vacuum chamber; and
a narrow annular gap between the vacuum chamber and the outer sealing edge for conducting fluid away from the vacuum chamber towards the vacuum passageway, said gap being delimited outwardly by the outer sealing edge.
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Accused Products
Abstract
A biomedical vacuum electrode, such as an ECG electrode, is provided with a sealing element which improves performance. The sealing element includes a body and a sealing lip which extends around the body and terminates in a sealing edge at an application side. An inner surface of the sealing lip defines a vacuum chamber adapted in use of the electrode to communicate with a source of vacuum through a vacuum passageway. The vacuum passageway is connected with the vacuum chamber at the inner side of the sealing lip adjacent the sealing edge and opens into the vacuum chamber by way of an annular opening or gap. A contaminant absorber is placed on the side of the sealing element body facing away from the sealing edge to absorb contaminants carried away from the region of the sealing edge through the passageway.
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Citations
20 Claims
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1. A sealing element for a vacuum electrode device, the sealing element comprising:
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a vacuum cup defining a vacuum chamber adapted to accommodate a skin-engaging portion of an electrode element therein and communicating with a vacuum passageway through which a vacuum can be applied to the vacuum chamber, the vacuum cup having a skin-engageable outer sealing edge disposed around an opening to said vacuum chamber; and a narrow annular gap between the vacuum chamber and the outer sealing edge for conducting fluid away from the vacuum chamber towards the vacuum passageway, said gap being delimited outwardly by the outer sealing edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vacuum electrode device comprising:
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an electrode head having means for connecting it to a source of vacuum and to an apparatus for processing electric signals, and a sealing element comprising; a vacuum cup defining a vacuum chamber adapted to accommodate a skin-engaging portion of an electrode element therein and communicating with a vacuum passageway through which a vacuum can be applied to the vacuum chamber, the vacuum cup having a skin-engageable outer sealing edge disposed around an opening to said vacuum chamber; and a narrow annular gap between the vacuum chamber and the outer sealing edge for conducting fluid away from the vacuum chamber towards the vacuum passageway, said gap being delimited outwardly by the outer sealing edge. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification