Cervical collar brace with cable adjustment
A cervical collar brace including a main body collar, a first chin side support pivotally mounted to the main body collar, and a second chin side support pivotally mounted to the main body collar. A cable adjuster adjustably secures the first and second chin side supports to the main body collar and includes a rotatable wheel, one or more cables, and one or more lift effectors for lifting the chin side supports in response to rotation of the rotatable wheel in a first rotation direction. A chin piece is provided for supporting a wearer's chin.
1. A cervical collar brace comprising:
a main body collar;
a first chin side support pivotally mounted relative to the main body collar;
a second chin side support pivotally mounted relative to the main body collar;
a cable adjuster for adjustably securing the first and second chin side supports relative to the main body collar, the cable adjuster comprising a rotatable wheel, one or more cables operated by the rotatable wheel, one or more lift effectors coupled to the first and second chin side supports for lifting the chin side supports in response to rotation of the rotatable wheel in a first rotation direction, and one or more capstans positioned above the lift effectors for reversing a movement of at least one end of the one or more cables; and
a chin piece for supporting a wearer's chin and supported by the chin supports
wherein the one or more capstans comprise one or more rotatable pulleys.
2. The cervical collar brace as claimed in claim 1 further comprising guide elements formed in or secured to the main body collar and wherein the one or more cables is/are guided within guide elements.
3. The cervical collar brace as claimed in claim 2 wherein the guide elements comprise fixed guide tubes.
4. The cervical collar brace as claimed in claim 2 wherein the guide elements guide one end of the one or more cables through an upper opening through which the cable can be partially drawn to raise the chin side supports relative to the main body collar.
5. The cervical collar brace as claimed in claim 1 wherein the one or more cables comprise two cables, one for each chin side support.
6. The cervical collar brace as claimed in claim 5 wherein the two cables each include first and second portions, with the first portion secured to a lift effector for pulling the lift effector in one direction and the second portion secured to the lift effector for pulling the lift effector in a second direction, opposite to the first direction.
7. The cervical collar brace as claimed in claim 1 wherein the cable adjuster is movable between various discrete positions, and thereby restricts the position of the chin side supports to discrete positions relative to the main body collar.
8. The cervical collar brace as claimed in claim 7 wherein the rotatable wheel portion of the cable adjuster is secured in discrete positions by hard stops.
9. The cervical collar brace as claimed in claim 1 wherein the one or more cables comprise two cables, one for each chin side support, with each cable being arranged in a race-track configuration, and wherein each cable includes first and second portions, with the first portion secured to a lift effector for pulling the lift effector in one direction and the second portion secured to the lift effector for pulling the lift effector in a second direction, opposite to the first direction.
10. The cervical collar brace as claimed in claim 9 wherein rotatable wheel is connected to an internal axle and the cables are wrapped around the axle such that rotation of the rotatable wheel in one direction causes the cables to pull up on the lift effectors and rotation of the rotatable wheel in an opposite direction causes the cables to pull down on the lift effectors.
11. The cervical collar brace as claimed in claim 1 wherein the one or more capstans comprise one or more fixed pins over which the one or more cables are looped.
12. A cervical collar brace comprising:
a main body collar;
a first chin side support pivotally mounted relative to the main body collar;
a second chin side support pivotally mounted relative to the main body collar;
a cable adjuster for adjustably securing the first and second chin side supports relative to the main body collar, the cable adjuster comprising a rotatable wheel, one or more cables operated by the rotatable wheel, one or more lift effectors coupled to the first and second chin side supports for lifting the chin side supports in response to rotation of the rotatable wheel in a first rotation direction, and one or more capstans positioned above the lift effectors for reversing a movement of at least one end of the one or more cables: and
a chin piece for supporting a wearer's chin and supported by the chin supports,
wherein the cable adjuster is movable between various discrete positions, and thereby restricts the position of the chin side supports to discrete positions relative to the main body collar;
wherein the rotatable wheel portion of the cable adjuster is secured in discrete positions by hard stops; and
wherein the rotatable wheel is secured in discrete positions by hard stops which are selected by pulling out on the rotatable wheel and turning the rotatable wheel while it is pulled out and then returning the rotatable wheel to its unpulled state.