Bertillon Caliper

Description

Bertillon Caliper

The Bertillon caliper is a large spreading caliper, 33 cm long, with curved arms that meet at rounded tips. Alphonse Bertillon introduced this design to measure the head, and the Bertillon caliper is still a standard tool in anthropometry.

What it measures

Place the tips on two landmarks, for example front to back or side to side on the head, and then read the scale at the hinge. Because the arms curve, they clear the surface between the points, so you get a true straight line distance. It also suits other body widths.

Using a Bertillon caliper

Rest the tips lightly, since pressing on soft tissue shortens the reading. Take each measurement twice, and then record the average. Also use the same landmarks each time, so readings compare over time.

Care

Wipe the tips after each person, and clean the hinge and scale. Store the caliper closed and flat to protect the arms. Before each session, also close the tips and check that the scale reads zero.

Bertillon caliper specification

• Length: 33 cm
• Curved spreading arms
• Graduated scale
• Material: stainless steel
• Reusable, supplied non sterile

Warranty and supply

Every instrument carries a three year warranty against defects in manufacture, counted from the invoice date. Before an order ships, we inspect it in Atlanta. Also, for cleaning and sterilizing questions, see our FAQs, or browse the rest of our diagnostic medical instruments.

In addition, the FDA recognizes ASTM F899, the standard for stainless steel in surgical instruments.

Disclaimer

Catalog photographs are reference images and may show more than one size or version, so check the option you select before ordering. This is a professional use product. Surgical stainless steel contains nickel, so Intrace USA cannot accept liability for allergic or material sensitivity reactions. See the FDA guidance on materials used in medical devices.