DR. RICHARD JULIAN RADNA, M.D.
Medical Practice at Park Ave, New York, NY

2004007, Apr 15, 2004

Oct 10, 2002

10/268071

Richard Radna - Bronx NY, US

G02B023/00

359/407000

A head-mounted assembly provides simultaneous recording of 3D stereo video of surgical procedures. In addition, the head-mounted assembly provides a 3D stereo surgical video system that may be co-axial to a surgeon's bi-nocular optical view trajectory. The head-mounted assembly includes a head-mountable structure, a first telescope and a second telescope, and a first video camera and a second video camera. The head-mountable structure is mounted on the head of a user. The first telescope, the first video camera, the second telescope, and the second video camera are secured to the head-mountable structure. The first video camera is positioned in relation to a first line of sight, as viewed, through the first telescope, by a first eye of the user. On the other hand, the second video camera is positioned in relation to a second line of sight, as viewed, through the second telescope, by a second eye of the user.

5402773, Apr 4, 1995

Sep 10, 1993

8/118642

Richard J. Radna - New York NY

A61B 1702

128 20

The present invention describes an auxiliary surgical retractor blade system in which a plurality of blade members are connectable in series by connector elements. The connector elements engage receivers on adjacent blade members and the receivers themselves are formed with flat abutting wall surfaces to prevent relative movement of the adjacent blade sections. Retention means may be provided in conjunction with the connector elements and receivers to prevent inadvertent disconnection of adjacent blade sections. The auxiliary retractor blade system of the present invention is useable with existing surgical retraction instruments to extend their reach along the length of a surgical incision.