US 12,329,417 B2
Modular tensioned spinal screw
Eugene Avidano, Stratford, CT (US); Peter Barreiro, Trumbull, CT (US); and Daniel Vigliotti, Guilford, CT (US)
Assigned to SPINE WAVE, INC., Shelton, CT (US)
Filed by SPINE WAVE, INC., Shelton, CT (US)
Filed on Dec. 7, 2021, as Appl. No. 17/544,523.
Application 17/544,523 is a continuation of application No. 16/843,160, filed on Apr. 8, 2020, granted, now 11,219,470.
Claims priority of provisional application 62/880,188, filed on Jul. 30, 2019.
Prior Publication US 2022/0133363 A1, May 5, 2022
Int. Cl. A61B 17/70 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7032 (2013.01) [A61B 17/7052 (2013.01); A61B 17/8605 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A kit of parts for use in spinal surgery, comprising:
a plurality of modular yoke assemblies, each modular yoke assembly comprising a monolithic one-piece, unitary yoke having an upper end, an opposite lower end and an inner central bore extending therethrough, said upper end including a pair of opposing arms spaced by a width and defining therebetween a channel for receipt of an elongate spinal rod, each of said channels being configured to have a different width for receipt respectively of a rod having a different diameter, said lower end of each yoke having a lower opening dimensioned for receipt therein of a head of a bone screw, the dimension of said lower opening of each yoke being the same, each yoke including within its inner central bore and at a location spaced from and not within said lower opening a tension member configured to apply upon receipt of said head of said bone screw a sufficient frictional force to hold said yoke in a provisional position that may be overcome by manual force; and
a plurality of bone screws, each screw comprising a threaded elongate shaft having a length and a head at an upper end of said shaft, the length of each threaded elongate shaft being different, each said head having a spherical surface defining a diameter, the diameter of each head being the same.