US 11,806,261 B2
In vivo adjustment mechanism and associated systems and methods
John M. Brinkmann, Flagstaff, AZ (US); and Paul D. Goodman, Flagstaff, AZ (US)
Assigned to W. L. Gore & Associates, Inc., Newark, DE (US)
Appl. No. 17/251,028
Filed by W. L. Gore & Associates, Inc., Newark, DE (US)
PCT Filed Jun. 7, 2019, PCT No. PCT/US2019/035993
§ 371(c)(1), (2) Date Dec. 10, 2020,
PCT Pub. No. WO2019/241057, PCT Pub. Date Dec. 19, 2019.
Claims priority of provisional application 62/683,295, filed on Jun. 11, 2018.
Prior Publication US 2021/0169667 A1, Jun. 10, 2021
Int. Cl. A61F 2/93 (2013.01)
CPC A61F 2/93 (2013.01) [A61F 2250/001 (2013.01); A61F 2250/0082 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A diametric adjustment mechanism for an implantable medical device, the diametric adjustment mechanism comprising:
a track defining a series of diametric setpoints including a first diametric setpoint and a second diametric setpoint, an adjustment path defined from the first diametric setpoint to the second diametric setpoint, and a return path defined from the second diametric setpoint to the first diametric setpoint, the return path being adjacent to and separate from the adjustment path;
a rider engaged with the track such that the rider is selectively movable along the track from the first diametric setpoint to the second diametric setpoint, and from the second diametric setpoint to the first diametric setpoint; and
a collar that is coupled between the rider and the track, the collar having elastic properties such that the collar biases the rider toward the first diametric setpoint when the rider is at the second diametric setpoint.
 
14. The adjustment mechanism of claim 1, wherein the return path is substantially straight.