• Wearable on headlight or glasses
• Camera located between the eyes that is maneuverable to adjust recording angle
• Head-up view to see what is being recorded real-time
• Manual white balance adjustment
The PivotHead glasses do provide perfect central shots, but still suffer from a vertical offset (orange) which cannot be adjusted like the headlight mounted systems.
Overhead Mounted Camera Systems
For the same reason the best photos are obtained by cameras fixed to a tripod, the best videos are often obtained by cameras fixed into position by a stationary object.
One object cameras can be attached to are overhead fixtures.. specifically the operating room lights.
Such cameras are attached typically to the light-handle of such overhead operating room lights which are directed down into the surgical field. Such systems provide excellent focussed, stable, high-quality video-recordings with one BIG disadvantage. The surgeon's head keeps getting in the way.
Also, the light-handle is positioned for optimal lighting of the surgical field... not optimal framing for capturing good videos.
Bed-Mounted Camera Systems
Using a Thompson Laparoscopic Retractor System, the video camera can be attached to one of the articulating arms and adjusted sterilely as needed. Using this retractor system can allow the camera to be positioned independently of the overhead operating room lights and to be as close to the surgical field as necessary.
Sony HXR-MC1 which incorporates a large-sized lipstick camera that is attached to a controller where manual controls for focus, zoom, white balance, exposure, etc can be made. Other than the built-in LCD screen, there are included plugs (Component, RCA, and with adapter S-Video) that allow what the camera is recording to be thrown up onto a large screen.
Other wireless video lipstick cameras are now being produced, but lack manual controls to adjust zoom, white balance, and exposure. Some offer real-time video display so it may be just a matter of time before all other manual controls found with the Sony HXR-MC1 become more widely available.
The main disadvantage with this setup is that the setup itself can get in the way of the surgeon.
So there you have it... No perfect surgical POV video system yet... Maybe in the next few years if technology keeps moving the way it is.