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US 4,177,524 AGranted
Medical securement element with abrasive grains on thread surface
AssigneePfaudler-Werke GmbH
InventorsHelmut Grell, Heinz Scharbach
Life of this patent
Estimating the term…
Abstract
A medical securement element with a self-tapping screw thread is provided with biocompatible abrasive grains at the surface of the thread. The grains are preferably embedded in a layer of porcelain enamel on a metal substrate.
Claims11
A medical securement element for engagement with a counterthread in a bone, comprising a self-tapping screw thread with biocompatible abrasive grains at the surface of the thread.
Dependencies are inferred from the claim text.