US 12,138,085 B2
Expandable holder sleeve and tool set
Eda Ay-Becker, Mengen (DE)
Assigned to Aesculap AG, Tuttlingen (DE)
Appl. No. 18/281,358
Filed by Aesculap AG, Tuttlingen (DE)
PCT Filed Mar. 8, 2022, PCT No. PCT/EP2022/055851
§ 371(c)(1), (2) Date Sep. 11, 2023,
PCT Pub. No. WO2022/189411, PCT Pub. Date Sep. 15, 2022.
Claims priority of application No. 10 2021 106 111.3 (DE), filed on Mar. 12, 2021.
Prior Publication US 2024/0148460 A1, May 9, 2024
Int. Cl. A61B 50/20 (2016.01); A61B 50/34 (2016.01)
CPC A61B 50/20 (2016.02) [A61B 50/34 (2016.02)] 19 Claims
OG exemplary drawing
 
1. An expander holder of a tool set for plug-in holding of a surgical tool, the expander holder comprising:
a plurality of clamping arms that are circumferentially spaced and elastically deformable the clamping arms forming an insertion opening for insertion of the surgical tool on an open front side of the expander holder, and the clamping arms having engagement portions that are radially inwardly projecting for a force-fitting and/or form-fitting contacting of the surgical tool for holding the surgical tool;
a catching base formed at an end portion of the expander holder opposite to the insertion opening, wherein the clamping arms extend from the catching base in an axial direction toward the open front side; and
fastening portions for form-fitting attachment to a retaining device of the tool set,
the fastening portions adapted for hook-in fastening to the retaining device in such a manner that the fastening portions pass through a hole of the retaining device and engage behind a material of the retaining device surrounding the hole axially against an insertion direction of the surgical tool to be inserted as well as radially, whereby the fastening portions grip around the material surrounding the hole.