Improvements in or relating to drills for clearing obstructions

Abstract

Abstract 1,235,321. Removing obstructions from arteries. NATIONAL RESEARCH DEVELOPMENT CORP. 28 Jan., 1969 [30 Jan., 1968], No. 4846/68. Heading A5R. A drill for clearing obstructions in arteries comprises outer and inner tubes 1 and 2, a bit 3 located at one end of the tubes, flexible driving means 8 for rotating the bit, a shield 9 surrounding the bit, the ports 15 and 16 communicating with the inner and outer tubes respectively, to permit liquid to pass to and from the bit 3. Tubes 1 and 2 are sealed to frame 10 by clamping the tubes between male and female cones, 11 and 12, 13 and 14. Shaft 8 passes through a bearing 17 to a coupling member 18 for connection to an electric motor 24.

Inventors

• 👤 Edward Moss

Bibliographic Details