A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
349/36
A61B 10/00 (2006.01)
Patent
CA 1163013
¦ ABSTRACT OF THE DISCLOSURE Endoscopic method and apparatus are provided for the simul- taneous visual and ultrasonic imaging of internal body parts through use of a probe insertable into a body cavity. The probe includes a rectilinear transducer array acoustically coupled to the body through a cylindrical focusing lens having an outer face which conforms to the probe contour. The transducer array is included in a pulsed ultrasonic imaging system of the B-scan type, A tube, which includes a flexible portion adjacent the probe, connects the probe to a control housing containing man- ually operated control mechanism for bending the flexible tube portion. A control handle extends from the side of the housing for control of bending by the operator. The pulsed ultrasonic imaging system includes pulse generator and pulse receiver means connoted to individual elements of the transducer array by co- axial cables extending through the tube. Electronic beam focus- ing and scanning means for rectilinear B-scan operation are pro- vided for imaging of objects at close distances adjacent the probe. Visual display means are provided for visual display of the ultrasonic image from the B-scan receiver. An optical illuminating and viewing system is provided for optically viewing internal body parts through the probe, which system includes an objective lens and illuminating means adjacent the distal ends of the probe and transducer array. A removable eyepiece at the housing is used for direct viewing by the operator while guiding the probe into desired position in the body cavity. Means also are provided for viewing the optical image by a video camera having an output connected to a monitor adjacent the ultrasonic image display. Consequently, both the optical and ultrasonic images are simultaneously displayable and viewable by the oper- ator.
377992
Green Philip S.
Havlice James F.
Saraf Dilip G.
Gowling Lafleur Henderson Llp
Sri International
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