Add-on video camera arrangement for optical laparoscope

摘要

An add-on video camera arrangement permits onscreen viewing of a target within an enclosed structure, such as a patient's body cavity, using an optical laparoscope. A standard C-mount adaptor is fitted to the ocular of the laparoscope lens tube. The camera arrangement has a handle unit that is formed of a short one piece housing. A camera lens and imager unit is disposed therein at the distal end of the housing. A standard female-thread socket receives the standard male thread of the C-mount adaptor. A flexible umbilical tube couples the housing to a connector module that plugs into a light and power supply unit. The fiber optic bundle light conduit has its proximal end within the connector module to receive light from the light unit, and the light conduit extends through the umbilical tube in the handle unit housing and exits the housing at a light conduit port. A flexible tubular connector extends from this port and carries the fiber optic bundle light conduit. A coupler device at the distal end of this conduit fits onto the light tube fitting that is provided on the laparoscope lens tube.