US 12,433,614 B2
Surgical instrument
Franz-Peter Firmbach, Emmingen-Liptingen (DE); and Svenja Anhorn, Heroldstatt (DE)
Assigned to Aesculap AG, Tuttlingen (DE)
Filed by Aesculap AG, Tuttlingen (DE)
Filed on Jun. 2, 2023, as Appl. No. 18/328,092.
Claims priority of application No. 10 2022 205 693.0 (DE), filed on Jun. 3, 2022.
Prior Publication US 2023/0389942 A1, Dec. 7, 2023
Int. Cl. A61B 17/15 (2006.01); A61B 17/17 (2006.01); A61B 17/16 (2006.01)
CPC A61B 17/1764 (2013.01) [A61B 17/157 (2013.01); A61B 17/1675 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A surgical instrument for use in a knee joint replacement operation, the surgical instrument comprising:
a main body configured for releasable fastening to a tibial cutting block for cutting guidance on a proximal tibia;
a first stylus;
a second stylus; and
at least one compensation element,
the first stylus and the second stylus each being mounted on the main body so as to be movable relative to the main body,
the first stylus and the second stylus each being elongate along a respective longitudinal axis between a first end and a second end,
the first ends of the first stylus and the second stylus each having a reference surface configured for contacting a tibial plateau of a tibia along a contact direction,
the at least one compensation element being configured for selective attachment to one of the first stylus and the second stylus,
the at least one compensation element comprising a plug-in section and a contact surface,
the first ends of the first stylus and the second stylus each having a complementary plug-in section configured for form-fitting and/or force-fitting, releasable connection to the plug-in section of the at least one compensation element,
wherein, when the compensation element is attached to said one of the first stylus and the second stylus, the contact surface is configured for contacting the tibial plateau instead of the reference surface of said one of the first stylus and the second stylus, the contact surface being arranged along the contact direction in a manner spaced apart from said reference surface of said one of the first stylus and the second stylus by a thickness dimension,
wherein the plug-in section is connectable with the complementary plug-in section of said one of the first stylus and the second stylus along a plug-in direction, wherein the plug-in direction extends along the respective longitudinal axis of said one of the first stylus and the second stylus and/or orthogonally with respect to the contact direction.