US 12,458,367 B2
Universal adapter for handheld surgical systems
Thibault Chandanson, Vincennes (FR); Stephane Bette, Aix en Provence (FR); Maurice Bourlion, Rive de Gier (FR); Christopher Raczek, Vincennes (FR); and Francois Teyssere, Vincennes (FR)
Assigned to SpineGuard, Vincennes (FR)
Filed by SpineGuard, Vincennes (FR)
Filed on Sep. 27, 2022, as Appl. No. 17/935,853.
Claims priority of provisional application 63/249,451, filed on Sep. 28, 2021.
Prior Publication US 2023/0095197 A1, Mar. 30, 2023
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1617 (2013.01) [A61B 17/162 (2013.01); A61B 2017/00026 (2013.01); A61B 2017/00221 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An adapter for use with a surgical tool comprising an elongated drilling portion, the adapter comprising:
a sleeve comprising a lumen sized and shaped to receive the elongated drilling portion of the surgical tool therethrough, and a stationary component comprising a spring and a contact sensor;
a plunger coupled to the spring and configured to be slidably movable within the stationary component responsive to a force applied by the surgical tool, the plunger comprising a screw configured to engage with the contact sensor as the plunger moves relative to the stationary component, and wherein the lumen extends through the plunger and the stationary component;
a brake mechanism configured to be actuated to arrest advancement of the elongated drilling portion relative to the sleeve; and
a controller configured to:
receive a signal indicative of an electrical conductivity sensed by the elongated drilling portion;
responsive to the signal, cause the brake mechanism to arrest advancement of the elongated drilling portion relative to the sleeve; and
determine penetration depth of the elongated drilling portion based on electrical impedance responsive to engagement between the screw and the contact sensor.