Servoelectric micromanipulator for movement on spherical coordinates

US4342951A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Ortwin Muller · Aalen, DE
• Klaus Biber · Aalen, DE
• Roland Schmauder · Oberkochen, DE
• Manfred Spitznas · Bonn, DE

Key dates

• Filing date: Dec 11, 1979
• Grant date: Aug 3, 1982
• Expiry date: Dec 11, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F9/00736
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention contemplates a micromanipulator as for the manipulation of a vitrectomy instrument, wherein a single remotely operable control means is effective through three independent spherical-coordinate servoelectric drives to selectively control the operative end of the instrument, within an operating volume defined by spherical coordinates centered at a fixed point of origin; in a vitrectomy, the fixed point of origin is illustratively the point of surgical entry through the pars plana of the eye.