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US 5,569,257 AGranted
Saw blade for parting cuts made in an oscillating or rotary manner
AssigneeRicana AG
InventorsRichard E. Arnegger, Antonius G. M. Gunnewijk, Thomas Maurer
Life of this patent
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Abstract
The saw blade has a non-cutting blade area (2), whose thickness D is smaller than the width of cut S of its cutting area (4). The non-cutting blade area (2) has on either side a thin surface coating (11) of a relatively soft and biologically neutral precious metal. This leads to much better cutting characteristics and to reduced friction. The saw blade is particularly suitable for bone surgery.
Claims12
A saw blade for making parting cuts when driven in an oscillating or rotary motion, the blade comprising
- a holding area comprising a blade substrate material;
- a cutting area having saw teeth for making a cut having a width (S);
- a non-cutting blade area having a thickness (D) in at least selected zones which is less than said cutting width (S) of said cutting area;
- and
- a surface coating (11) comprising a biological neutral precious metal on at least selected zones of opposite sides of said non-cutting blade area, said surface coating being softer than said blade substrate material, said cutting area being not covered by said surface coating.
2 more elements
Dependencies are inferred from the claim text.