Surgery – Truss – Pad
Patent
1986-04-04
1988-04-12
Kamm, William E.
Surgery
Truss
Pad
128802, A61B 504
Patent
active
047367490
ABSTRACT:
The invention relates to a holder for diagnostic and therapeutic devices fixed by vacuum. Vacuum is supplied by a hose or tube (8), in which one or several electrical conductors (7) for electrical power supply or signal transmission are drawn. The holder comprises a rigid backpiece (3), an intermediate elastomeric element (2), and the diagnostic or therapeutic device (1). The intermediate element (2) comprises a comparatively stiff sealing ring (9), which in a working state is supported against the skin by a sealing lip (13) and with its opposite side against the backpiece (3). The device (1) is rigidly connected to the backpiece (3), but the sealing ring of the intermediate element (2) is movable and, outwardly from the backpiece, slightly resilient (via resilient means 17). When the lip-side of the ring is not loaded and the ring thus pressed outwardly, a vacuum valve is closed automatically through the action of the intermediate component, and is re-opened when the holder is pressed against the surface of the skin, whereupon the holder is held firmly by suction.
REFERENCES:
patent: 2660175 (1953-11-01), Thrasher et al.
patent: 3490442 (1970-01-01), Streu
patent: 3505993 (1970-04-01), Lewes et al.
patent: 3640270 (1972-02-01), Hoffman
patent: 4369793 (1983-01-01), Staver
patent: 4556065 (1985-12-01), Hoffman
Astra-Tech Aktiebolag
Kamm William E.
Sykes Angela D.
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