US 12,402,895 B2
Surgical guide and fixation insertion device
Wyatt Drake Geist, Davie, FL (US); and John Souza, Monroe, NC (US)
Assigned to INTEGRITY IMPLANTS INC., Palm Beach Gardens, FL (US)
Filed by INTEGRITY IMPLANTS INC., Palm Beach Gardens, FL (US)
Filed on Apr. 12, 2023, as Appl. No. 18/134,007.
Claims priority of provisional application 63/428,713, filed on Nov. 29, 2022.
Claims priority of provisional application 63/330,224, filed on Apr. 12, 2022.
Prior Publication US 2023/0355250 A1, Nov. 9, 2023
Int. Cl. A61B 17/16 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/1624 (2013.01) [A61B 17/1633 (2013.01); A61B 17/1671 (2013.01); A61B 17/862 (2013.01); A61B 17/1628 (2013.01); A61B 17/1631 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical guidance device (10) that comprises:
a. a differential control assembly (50) that is cannulated for passage of a guidewire (15) therethrough, and aligned along a common axis with and within a housing (20), the differential control assembly (50) including a support shaft (51) having a proximally positioned drive connector (59) for engagement with a powered driving device (500), and a distally positioned tool connector (52) configured for attachment of a driver tool guide (200), a screw gear (53) and a chuck (54) that are releasably engagable to direct rotational movement of the screw gear (53) when the chuck (54) is engaged therewith, and a threaded carriage (55) translatable along the support shaft (51) for directing proximal or distal movement of the guidewire (15) through the differential control assembly (50), the threaded carriage (55) including at least one positive stop (57) which limits the proximal and distal translation of the carriage (55) within the housing (20), and
b. an actuator assembly (29) including a handle (42) operably attached to a chuck mover (43) for actuating engagement of the chuck (54) with the screw gear (53), a directional actuator (30) for actuating movement of the carriage (55) proximally or distally, and a carriage lock (31) configured to releasably engage a thread guide (32) with the threaded carriage (55) wherein engagement thereof permits proximal or distal movement of the threaded carriage (55) along the support shaft (51) to effect proximal or distal movement of the guidewire (15),
wherein the differential control assembly (50) is actuatable to first drive the guidewire (15) into a target site by engagement of the carriage lock (31) with the carriage (55) to direct distal movement of the guidewire (15), the depth thereof being governed by the at least one positive stop (57), and to differentially drive a screw affixed to the surgical guidance device (10) by actuating the handle (42) to engage the chuck (54) with the screw gear (53), and
wherein the guidewire (15) is constructed from a material having sufficient column strength for penetrating a bone.