US 12,434,307 B2
Chuck for a wire driver
Robert W. Childers, Trinity, FL (US); Aman Deep Mathur, Rajasthan (IN); and Ankur Bhagat, Uttarakhand (IN)
Assigned to Stryker Corporation, Portage, MI (US)
Appl. No. 17/282,034
Filed by Stryker Corporation, Kalamazoo, MI (US)
PCT Filed Oct. 1, 2019, PCT No. PCT/US2019/054093
§ 371(c)(1), (2) Date Jul. 18, 2022,
PCT Pub. No. WO2020/072511, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/862,854, filed on Jun. 18, 2019.
Claims priority of provisional application 62/740,579, filed on Oct. 3, 2018.
Prior Publication US 2023/0339026 A1, Oct. 26, 2023
Int. Cl. B23B 31/177 (2006.01); A61B 17/16 (2006.01)
CPC B23B 31/16237 (2013.01) [A61B 17/162 (2013.01); A61B 17/1697 (2013.01); B23B 31/16241 (2013.01); Y10T 279/17119 (2015.01); Y10T 279/17743 (2015.01)] 10 Claims
OG exemplary drawing
 
1. A chuck for a wire driver, the chuck comprising:
an axially extending jaw guide defining a longitudinal axis and including a first plurality of jaw channels circumferentially distributed about the axis;
a plurality of interleaving jaws slidably disposed in the jaw channels and each jaw having a clamping surface facing the axis and a driving surface substantially opposite the clamping surface and a protrusion on a first lateral side and a cavity on a second lateral side with the protrusion of each jaw disposed at least in part in the cavity of an adjacent jaw; and
an engagement sleeve having an inclined engagement surface on an inner surface thereof, the engagement surface substantially centered about the axis and substantially parallel to the driving surface, wherein displacement of the jaw guide relative to the engagement sleeve in a clamping direction displaces the clamping surfaces toward the axis,
wherein the plurality of interleaving jaws are restricted to radial movement by the jaw channels such that the plurality of interleaving jaws are restricted to move only in directions toward and away from the axis.