US 12,419,626 B2
Bone distraction devices and methods of using same
Eric Chevalier, Arras (FR)
Assigned to NuVasive, Inc., San Diego, CA (US)
Filed by NuVasive, Inc., San Diego, CA (US)
Filed on Jun. 19, 2024, as Appl. No. 18/747,777.
Application 18/747,777 is a continuation of application No. 17/294,418, granted, now 12,029,407, previously published as PCT/US2019/061893, filed on Nov. 16, 2019.
Claims priority of provisional application 62/768,814, filed on Nov. 16, 2018.
Claims priority of provisional application 62/768,819, filed on Nov. 16, 2018.
Prior Publication US 2024/0341743 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/02 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/025 (2013.01) [A61B 2017/00075 (2013.01); A61B 2017/00221 (2013.01); A61B 2017/00407 (2013.01); A61B 2017/00867 (2013.01); A61B 2503/06 (2013.01); A61B 2562/0204 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of lengthening a bone in a subject, the method comprising:
anchoring a first block portion (3) of a subcutaneous bone distraction device (1) to a first bone section of the bone (2);
anchoring a second block portion (3′) of the subcutaneous bone distraction device (1) to a second bone section of the bone (2′);
actuating a push button expansion system (5′-6-7-8-8′) of the subcutaneous bone distraction device to incrementally and slidably advance the second block portion (3′) along a pair of opposing rails (3a) of the first block portion (3);
waiting a length of time;
thereafter actuating the push button expansion system (5′-6-7-8-8′) to incrementally and slidably advance the second block portion (3′) along the pair of opposing rails (3a) of the first block portion (3); and
repeating the steps of waiting a length of time and thereafter actuating the push button expansion system until the bone has been lengthened to a desired length;
wherein the push button expansion system (5′-6-7-8-8′) comprises an actuator (7) for receiving an activation force from a user, a floating element (6) for transferring input from the actuator (7) into lateral motion, a second locking pawl (5′) associated with the floating element (6) and with a pair of opposing ratchet sections (4) of the first block portion (3), a first energy storage element (8) associated with the floating element (6) for returning the floating element (6) to an initial position, and a second energy storage element (8′) for returning the actuator (7) to the initial position after receiving the activation force from the user.