US 11,849,986 B2
Systems and methods for off-axis augmentation of a vertebral body
Gabriel James Harshman, Portage, MI (US); Christopher Scott Brockman, Kalamazoo, MI (US); and Beau M. Kidman, Kalamazoo, MI (US)
Assigned to Stryker Corporation, Kalamazoo, MI (US)
Appl. No. 17/603,148
Filed by Stryker Corporation, Kalamazoo, MI (US)
PCT Filed Apr. 20, 2020, PCT No. PCT/US2020/028989
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/219392, PCT Pub. Date Oct. 29, 2020.
Claims priority of provisional application 62/837,930, filed on Apr. 24, 2019.
Prior Publication US 2022/0192722 A1, Jun. 23, 2022
Int. Cl. A61B 17/88 (2006.01); A61B 17/16 (2006.01); A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61B 17/32 (2006.01)
CPC A61B 17/8811 (2013.01) [A61B 17/1642 (2013.01); A61B 17/3421 (2013.01); A61B 17/3472 (2013.01); A61B 17/3478 (2013.01); A61B 17/8819 (2013.01); A61B 17/8855 (2013.01); A61B 2017/00261 (2013.01); A61B 2017/00314 (2013.01); A61B 2017/00323 (2013.01); A61B 2017/00331 (2013.01); A61B 2017/00336 (2013.01); A61B 2017/320048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for augmenting a vertebral body with a system including a display, an x-ray device in communication with the display, an access cannula, an introducer device including a shaft including a distal portion configured to be curved, and a sheath including a flexible distal portion overlying the distal portion of the shaft, and at least two radiopaque markers disposed on the flexible distal portion of the sheath, the method comprising:
positioning a distal end the access cannula within the vertebral body such that a lumen of the access cannula provides access to an interior region of the vertebral body along a longitudinal axis;
directing the shaft of the introducer device and the sheath within the lumen of the access cannula in a straightened configuration;
operating the introducer device to move the shaft and the sheath from the straightened configuration to a first curved configuration within the vertebral body in which at least a portion of the distal portion of the shaft and the flexible distal portion of the sheath are beyond the distal end of the access cannula and offset from the longitudinal axis;
viewing on the display a first x-ray image from the x-ray device in which the at least two radiopaque markers are spaced apart from one another at a first distance in the first curved configuration;
operating the introducer device to move the distal portion of the shaft and the flexible distal portion of the sheath from the first curved configuration to a second curved configuration different from the first curved configuration; and
viewing on the display a second x-ray image from the x-ray device in which the at least two radiopaque markers are spaced apart from one another at a second distance in the second curved configuration with the second distance being different than the first distance and indicative of an adjustment of curvature between the first curved configuration and the second curved configuration.