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“EFER” Arthroscope and Sheath (Zimmer)

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 a forward-looking lens at the other. There is a blue band around the barrel of the arthroscope adjacent to the eyepiece. Protruding from the barrel of the instrument, near to the eyepiece, is a port for a fiber optic light source.
The arthroscope is mounted to a matching sheath which may be locked in place using a flat, knurled plunger near the socket of the sheath. Protruding from the sheath is a port, presumably for the irrigation system.
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.5

Alternative Name:

Primary Materials: Steel; Glass.


Stamped on the blue ring near the eyepiece: “ZIMMER// EFER”
There is a small white mark at one point along the perimeter of the eyepiece.

Dimensions (cm): Height = 5, Width = 4.5, Length = 21.


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.


There is very light abrasion along the surface of the instrument. There are some noticeable small scratches on the outer surface of the eyepiece.

Associated Instruments:

Manufacturer: Zimmer, Warsaw, Indiana, USA 46580.

Date of Manufacture: 20th C., pre 2014.


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:

Walker, J., Nicas, J., & Pollock, L. (2014, Apr 25). Big deal — especially for Warsaw, Ind. Wall Street Journal.

Historical Notes:

Zimmer has been based in Warsaw, Indiana since 1927. The company became a world leader in artificial knees, hips, and other orthopedic and bone-mending implants. In 2014, the company merged with Biomet. (see Walker, Nicas, & Pollock, 2014)

  • Donated to UTSIC