Depuy Synthes Products, Inc.

Synthes Gmbh

Markus Hermann

Stefan Gisler

Rolf Schlienger

Patrick Uhri

David S Narducci

Nils Schmuckli

Robert Goossen

Matthias Singeisen

Martin Muench

In general, devices, systems, and methods for assembly and operation of a handheld oscillating surgical saw are provided. In exemplary embodiments, a surgical tool includes a handpiece comprising a coupling head that includes a slot and a magnet, the slot being configured to releasably receive a surgical saw blade configured to cut bone, and the magnet being configured to magnetically attract the saw blade, wherein the coupling head is configured to move between a first position, in which the slot has a first height and the coupling head is configured to selectively receive the surgical saw blade therein and release the surgical saw blade therefrom, and a second position, in which the slot has a second height that is less than the first height and the coupling head is configured to fixedly seat the saw blade therein.

Powered surgical tool with an oscillating saw blade

Saw blade

A saw gear set comprising a set of saw blades and a saw drive (), wherein each saw blade of the set is configured to be coupled to the saw drive () by means of a coupling mechanism (), which coupling mechanism () is configured to transmit a driving force of the saw drive () to the saw blade in a force transmission point, for oscillating the saw blade around a pivot axis (). Each saw blade of the set is configured to be pivotably borne around the pivot axis (). In operation, an oscillation angle (α) around the pivot axis () is different for each saw blade of the set depending on a pivot distance between the pivot axis () and the force transmission point which varies for each saw blade of the set.

Saw gear set

A saw gear set comprising a set of saw blades and a saw drive (), wherein each saw blade of the set is configured to be coupled to the saw drive () by means of a coupling mechanism (), which coupling mechanism () is configured to transmit a driving force of the saw drive () to the saw blade in a force transmission point, for oscillating the saw blade around a pivot axis (). Each saw blade of the set is configured to be pivotably borne around the pivot axis (). In operation, an oscillation angle (&#x3b1;) around the pivot axis () is different for each saw blade of the set depending on a pivot distance between the pivot axis () and the force transmission point which varies for each saw blade of the set.

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Laupersdorf, Switzerland

Markus Hermann