Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact with electrical or electromagnetic...
Patent
1992-09-24
1993-08-31
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact with electrical or electromagnetic...
422 20, 422 24, 422292, 422294, 219 1055R, 25045511, 151042, 1510405, 604265, 606 15, 606 29, 606 33, A61L 208, B08B 900
Patent
active
052406750
ABSTRACT:
In a method for use in cleaning a flexible endoscope, an elongate cleaning member having an embedded optical fiber, an electrical conductor, and/or a heat conductor is inserted into a biopsy channel of the endoscope. Sterilizing radiation of a predetermined wavelength is transmitted along the optical fiber from a proximal end of the elongate cleaning member towards a distal end thereof. The radiation is dispersed to at least partially sterilize the biopsy channel. Heat energy is conducted along the heat conductor to raise or lower the temperature of the biopsy channel for a predetermined period to effectuate a sterilizing action. Electrical current may also be transmitted along the biopsy channel wall by virtue of the electrical conductor. The method also comprises the step of ejecting a sterilizing fluid from the elongate cleaning member into the biopsy channel. Where a brush or friction element is provided at the distal end of the elongate cleaning member, the brush or friction element is used to scrub the biopsy channel with the sterilizing fluid. The scrubbing may be implemented by vibrating the elongate cleaning member, e.g., by transmitting an ultrasonic wave through the elongate cleaning member.
REFERENCES:
patent: 5061255 (1991-10-01), Greenfeld et al.
patent: 5168593 (1992-12-01), Poje et al.
"Endoscopic Contamination and Disinfection Annotated Bibliography", by David H. Spach, M.D., University of Wash., Seattle, Washington, May 1992, pp. 1-28.
Tiefenbrun Jonathan
Wilk Peter J.
Coleman Henry D.
Dawson E. Leigh
Sudol R. Neil
Warden Robert J.
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