US 12,004,783 B2
Instrument for use in surgery
Timo Biedermann, Trossingen (DE); Markku Biedermann, Key Biscayne, FL (US); and Achim Schünemann, Villingen-Schwenningen (DE)
Assigned to BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed by BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed on Nov. 17, 2022, as Appl. No. 18/056,637.
Claims priority of provisional application 63/280,765, filed on Nov. 18, 2021.
Claims priority of application No. 21208986 (EP), filed on Nov. 18, 2021.
Prior Publication US 2023/0149057 A1, May 18, 2023
Int. Cl. A61B 17/88 (2006.01); A61B 17/04 (2006.01); A61B 17/70 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7082 (2013.01) [A61B 17/0482 (2013.01); A61B 17/864 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An instrument for use in surgery, the instrument being connectable to a bone anchor insertion device that comprises a drive shaft configured to engage a bone anchor, the drive shaft defining a coaxial channel for receiving a needle therethrough, the instrument comprising:
a hollow shaft connectable to the drive shaft in a rotationally fixed manner;
a needle holder configured to hold a needle and movable axially relative to the hollow shaft;
an actuator rotatable relative to the hollow shaft; and
a transmission member connectable to the needle holder and movable axially relative to the actuator, wherein the transmission member is positionable around at least part of the hollow shaft and comprises a first advancement surface engageable with a second advancement surface of the hollow shaft to convert rotational movement of the actuator into axial movement of the needle holder relative to the hollow shaft for axially advancing and retracting the needle held by the needle holder relative to the hollow shaft.