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30°, 4mm Arthroscope (Eder)

Health Sciences · Robert W. Jackson Arthroscopy

A metal optical instrument with a long, thin, cylindrical stem. A black coloured eyepiece is located at one end of the instrument, and an angled lens at the other. Protruding from the barrel of the instrument, adjacent to the eyepiece, is a port for a fiber optic light source.

Near the fiber optic port, there is a locking mechanism for securing the arthroscope within a sheath, but the associated sheath is not included with this artifact.

Accession Number: 2020.JAC.9

Alternative Name:

Primary Materials: Steel, Glass, Plastic


Printed on the flattened part of the instrument adjacent to the port for the light source: “CAT #4430// 4mm 30°”
Stamped or engraved around the eyepiece: “EDER INSTRUMENT CO. CHICAGO 32382”

Dimensions (cm): Height = 5, Width = 3, Length = 21.5


An arthroscope is an optical instrument for viewing the interior of a joint during a surgical operation. Its development made possible minimally invasive surgery for many knee operations. It significantly improved diagnoses and healing times for many knee conditions. Specialized arthroscopes may also be used on smaller joints.


This instrument is close to “like new” condition, with very light wear.

Associated Instruments:

Manufacturer: Eder Instruments Co. Chicago

Date of Manufacture: 20th C., before 1985


The Robert W. Jackson Arthroscopy Collection was acquired by the University of Toronto from Dr. Jackson’s family on November 12th, 2020.

Additional Information and References:

Historical Notes:

 Eder instruments Co. was founded in 1947 by Ludwig Streifeneder. In 1985, it was acquired by Edward Weck and Co. Inc.

  • Donated to UTSIC