Device for securing an object to a surface by vacuum
First Claim
1. A device including an object holder and an object held therein, the object holder for retaining the object against a surface by vacuum pressure, the object holder comprising:
- a vacuum port;
a sealing member engageable with the surface to define a vacuum chamber open to the surface;
a vacuum passage providing fluid communication between the vacuum chamber and the vacuum port;
a first contaminant absorber disposed in the vacuum chamber between the sealing member and the object;
a socket in the object holder; and
a connector member configured to be received in the socket, the connector member being secured to the object;
whereby the absorber, the object and the connector member form a unit which is releasably connectable with the socket.
1 Assignment
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.
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Citations
20 Claims
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1. A device including an object holder and an object held therein, the object holder for retaining the object against a surface by vacuum pressure, the object holder comprising:
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a vacuum port; a sealing member engageable with the surface to define a vacuum chamber open to the surface; a vacuum passage providing fluid communication between the vacuum chamber and the vacuum port; a first contaminant absorber disposed in the vacuum chamber between the sealing member and the object; a socket in the object holder; and a connector member configured to be received in the socket, the connector member being secured to the object; whereby the absorber, the object and the connector member form a unit which is releasably connectable with the socket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device including an object holder and an object held therein, the object holder for retaining the object against a surface by vacuum pressure, the object holder comprising:
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a vacuum port; a sealing member engageable with the surface to define a vacuum chamber open to the surface; a vacuum passage providing fluid communication between the vacuum chamber and the vacuum port; a first contaminant absorber disposed in the vacuum chamber between the sealing member and the object; a filter cavity defined by a widened portion of the vacuum passage; and a second contaminant absorber substantially filling the filter cavity.
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11. A device including an object holder and an object held therein, the object holder for retaining the object against a surface by vacuum pressure, the object holder comprising:
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a vacuum port; a sealing member engageable with the surface to define a vacuum chamber open to the surface; a vacuum passage providing fluid communication between the vacuum chamber and the vacuum port; a first contaminant absorber disposed in the vacuum chamber between the sealing member and the object; and a valve disposed in the vacuum passage and biassed towards a closed position. - View Dependent Claims (12)
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13. A vacuum attachment device comprising:
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an object holder having a bottom side and a top side; fluid connection means for connecting the object holder to a fluid pressure source; a fluid passage which extends between the fluid connection means and the bottom side; a sealing member which projects from the bottom side of the object holder and extends about a negative-pressure chamber at the bottom side; a detachable unit which is attached to the object holder at the bottom side thereof inside the sealing member and which is connectable with and releasable from the object holder through a movement relative to the bottom side respectively towards and away from it, the sealing member being engageable with a skin surface to close the negative-pressure chamber; a space defined between the object holder and the unit which communicates with the fluid passage; and a valve disposed in said fluid passage which is openable to provide communication between the space and negative-pressure chamber, the valve being closable by a positive pressure in said space to prevent escape of fluid therefrom into the negative-pressure chamber. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A device including an object holder and an object held therein, the object holder for retaining the object against a surface by vacuum pressure, the object holder comprising:
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a vacuum port; a sealing member engageable with the surface to define a vacuum chamber; a vacuum passage within the object holder, the vacuum passage providing fluid communication between the vacuum chamber and the vacuum port; a filter cavity defined by a widened portion of the vacuum passage; a bottom wall generally separating the filter cavity from the vacuum chamber; a contaminant absorber substantially filling an entire volume of the filter cavity.
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Specification