Menu Close

“Needlescope” Small Diameter Arthroscope (Dyonics)

Health Sciences · Robert W. Jackson Arthroscopy

A metal optical instrument with a black eyepiece at one end and a very narrow (~2mm) tip. In the area at which the instrument narrows towards the tip is a port for attaching a fiber optic light source.

Accession Number: 2020.JAC.11

Alternative Name:

Primary Materials: Stainless Steel, Glass


Printed on the body of the instrument, near the eyepiece: “DYONICS// Needlescope®// MADE IN U.S.A”
Printed along the bottom edge of the eyepiece: “1544”

Dimensions (cm): Height = 5, Width = 3, Length = 29.2


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 are light abrasions along the body of the instrument. There are also patches of deposit, or possible light oxidation, on the same surface. The printed markings are lightly damaged but still readable.

Associated Instruments:

Manufacturer: Dyonics corp, Andover, Mass, USA.

Date of Manufacture: c. 1970s


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:

Ken Johnson, “Smith & Nephew merges Dyonics and Acufex to form new instrument company.” Lawrence Eagle-Tribune, North Andover, Mass. 1995.

Historical Notes:

In 1986, Dyonics, andover was acquired by Smith+Nephew, based in London, UK.

In 1995, Smith+Nephew merged Dyonics with recently acquired Acufex to form Smith & Nephew Endoscopy, based in Andover.

  • Donated to UTSIC