Orthotic strapping system
View Patent ↗An orthotic strapping system that loosens all or a portion of a strap by capturing the angular movement of an orthotic joint to move the attachment point of the strap. This can be done with cabling or by using rotating cams and rigid linkages to connect them.
1. A method of supporting a joint of a wearer of a strapped brace, comprising:
securing the strapped brace to the wearer using a strap; and
varying tension of the strap in accordance with movement of the joint;
wherein varying tension comprises lengthening and shortening a length of a segment of a line coupled to the strap.
2. The method of claim 1 , comprising loosening the strap with increasing flexion of the joint.
3. The method of claim 1 , wherein varying tension comprises producing a pivoting motion of a rigid member coupled to the strap.
4. The method of claim 1 , comprising at least partially hiding the line.
5. A strapped brace for supporting a joint of a wearer, comprising a strap and a strap tensioning mechanism, configured to loosen the strap with increasing flexion of the joint and tighten the strap with decreasing flexion of the joint; further comprising a first member and a second member coupled in hinged relation to one another, wherein the strap is coupled to at least one of the first member and second member for securing the strapped brace to the wearer;
wherein the strap tensioning mechanism comprises a line coupled to the strap and to at least one of the first member and the second member and is configured such that tension of the strap is varied in accordance with relative positions of the first member and the second member.
6. The apparatus of claim 5 , wherein the strap tensioning mechanism comprises a direction changing mechanism for translating motion of the line from one direction to another different direction in response to movement of the at least one of the first member and second member.
7. The apparatus of claim 6 , wherein the direction changing mechanism comprises an arcuate channel through which the line passes.
8. The apparatus of claim 6 , wherein the direction changing mechanism comprises a hole through which the line passes.
9. The apparatus of claim 6 , wherein the line is directly attached to the strap.
10. The apparatus of claim 6 , wherein the line is coupled to the strap via a chafe.
11. The apparatus of claim 6 , wherein the line is at least partially hidden.
12. The apparatus of claim 6 , wherein the strap comprises a rigid member extending from one edge of the strap to another edge of the strap.
13. The apparatus of claim 12 , wherein the rigid member is coupled to one of the first member and the second member so as to allow for a pivoting motion about one end of the rigid member.
14. The apparatus of claim 13 , wherein the line is coupled to an end of the rigid member opposite the one end.