US 12,485,055 B2
Finger motion rail for carrying out a continuous, passive and/or actively assisted movement of a finger and/or a thumb of a patient, as well as a therapeutic device comprising a finger motion rail of this type
Pascal Lindemann, Mainz (DE); and Christof Steiner, Pforzheim (DE)
Assigned to UNIVERSITÄTSmedizin der Johannes Gutenberg-Universität Mainz, Mainz (DE)
Appl. No. 17/608,804
Filed by UNIVERSITAETSmedizin der Johannes Gutenberg—Universitaet Mainz, Mainz (DE)
PCT Filed May 8, 2020, PCT No. PCT/DE2020/100390
§ 371(c)(1), (2) Date Nov. 4, 2021,
PCT Pub. No. WO2020/224727, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 102019112049.7 (DE), filed on May 8, 2019.
Prior Publication US 2022/0296453 A1, Sep. 22, 2022
Int. Cl. A61H 1/02 (2006.01)
CPC A61H 1/0288 (2013.01) [A61H 2201/123 (2013.01); A61H 2201/165 (2013.01); A61H 2201/1676 (2013.01); A61H 2205/067 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A finger motion rail for carrying out a continuous, passive and/or actively assisted movement of a finger and/or a thumb of a patient, comprising:
a multi-joint hinge, arranged laterally alongside a respective finger and/or thumb, for flexion of a metacarpophalangeal joint, the multi-joint hinge having:
a first lever rigidly connected to a holder of a therapeutic device for carrying out a continuous, passive and/or actively assisted movement of the fingers and/or the thumb of the hand of a patient,
a second lever being rotatably connected to said first lever at a first joint, said second lever having at least one engagement joint connected to a movement drive,
a third lever being rotatably connected to said first lever at a second joint,
said second lever at a fourth joint and said third lever at a third joint being rotatably connected to each other via a fourth lever,
said third lever being rotatably connected to a fifth lever at a fifth joint, and
said fourth lever at a seventh joint and said fifth lever at a sixth joint being rotatably connected to each other via said first connection lever,
a mechanism, arranged laterally alongside the respective finger and/or thumb, for flexion of a proximal interphalangeal joint and/or a distal interphalangeal joint, and a first connection lever for connecting said mechanism to said multi-joint hinge; and
at least one pivot lever, operatively connected to said first connection lever, for interaction with said proximal interphalangeal joint and/or with said distal interphalangeal joint,
said multi-joint hinge being operatively connected to said mechanism via at least one second connection lever and at least one connection joint.