US 12,138,191 B2
Orthosis for range of motion
Boris Bonutti, Effingham, IL (US); Glen A. Phillips, Effingham, IL (US); Peter M. Bonutti, Manalapan, FL (US); Ricke Shamhart, Wheeler, IL (US); and Joseph Mathewson, Effingham (IL)
Assigned to BONUTTI RESEARCH, INC., Effingham, IL (US)
Filed by BONUTTI RESEARCH, INC., Effingham, IL (US)
Filed on Nov. 14, 2016, as Appl. No. 15/350,656.
Claims priority of provisional application 62/255,023, filed on Nov. 13, 2015.
Prior Publication US 2017/0135841 A1, May 18, 2017
Int. Cl. A61F 5/00 (2006.01); A61F 5/01 (2006.01); A61F 5/042 (2006.01)
CPC A61F 5/0127 (2013.01) [A61F 5/042 (2013.01); A61F 2005/0153 (2013.01); A61F 2005/0158 (2013.01); A61F 2005/0179 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An orthosis comprising:
a frame including a first body portion securement assembly and a second body portion securement assembly movably connected to the first body portion securement assembly for movement relative to the first body portion securement assembly; and
a drive assembly configured to drive movement of the second body portion securement assembly relative to the first body portion securement assembly comprising:
an actuation mechanism configured to actuate the drive assembly;
at least one driving link and a driven link, the driving link being mounted on the first body portion securement assembly and operatively connected to the actuation mechanism and the driven link to transmit a driving force from the actuation mechanism to the driven link to rotate the driven link relative to the first body portion securement assembly; and
a dynamic force mechanism operatively connected to the driven link and the second body portion securement assembly to receive a rotational force from the driven link of the drive assembly, the dynamic force mechanism including a spring and being configured to i) rotate the second body portion securement assembly relative to the first body portion securement assembly using the rotational force until a maximum range of motion of the second body portion securement assembly has been reached, ii) load the spring with dynamic force using the rotational force after the maximum range of motion has been reached, and iii) dynamically impart the dynamic force of the loaded spring upon the second body portion securement assembly after the maximum range of motion has been reached,
wherein the dynamic force mechanism further includes a stop and a connector, wherein the connector operatively connects the spring to the second body portion securement assembly, wherein the stop defines a curved slot having opposite first and second longitudinal ends, wherein the connector includes a shaft extending through the curved slot defined by the stop,
wherein the stop is configured to rotate relative to the connector, with the connector within the curved slot, as the spring is loaded with dynamic force such that the second longitudinal end of the curved slot moves toward the connector,
wherein the connector is configured to engage the second longitudinal end of the curved slot at a maximum rotation angle of the stop to inhibit further rotation of the driven link to thereby limit loading of the spring of the dynamic force mechanism.