Surgical instrument arrangement and drive train arrangement for a surgical instrument, in particular a robot-guided surgical instrument, and surgical instrument
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Dec 22, 2014
filing date -
Jul 3, 2012
priority date (Note) -
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Abstract
A surgical instrument arrangement has a modular motor drive unit which has a drive arrangement having at least one output element, an instrument shaft that can be detachably connected to the drive unit, and a drive arrangement having at least one input drive element. The output drive arrangement and the input drive arrangement can be coupled to each other by a mechanical interface that has at least one single-sided linkage, a pin, and a cut-out, wherein the pin can be radially expanded in the cut-out. Alternatively, a gap may be formed between the pin and the cut-out, which gap is wavy in the radial direction, and in which a radially displaceable, axially fixed intermediate element arrangement is arranged. The surgical instrument arrangement may also include a sterile barrier, which is provided to envelop the drive unit and to be arranged between the drive unit and the instrument shaft.
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