Pulsed laser for medical applications

US4702245A · kind A · utility

Assignee

• Meditec Reinhardt Thyzel GmbH · DE

Inventors

• Eckhard Schroder · Eckental, DE
• Reinhardt Thyzel · Heroldsberg, DE

Key dates

• Filing date: Jun 27, 1985
• Grant date: Oct 27, 1987
• Expiry date: Jun 27, 2005

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2009/00844
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A pulsed laser for medical application and particularly for ophthalmological treatment is described. The laser beam pulse has a clearly defined polarization plane. By rotating a polarization splitter cube, it is possible to regulate the energy of the laser beam pulse. Following each rotation of the polarization splitter cube, and prior to the following treatment pulse, a control system releases a test pulse. The energy of the test pulse is measured while the shutter closes the treatment beam path. According to a preferred embodiment, the laser is a neodymium-YAG laser.