Orthopedic neck brace with sliding pivot chin support
An orthopedic neck brace has right and left sliding pivots that couple a torso rest with a chin support. Over a wide range from relatively long necks to relatively short necks, the sliding pivots tend to raise and lower the chin piece vertically, which automatically keeps the chin support at a right angle to the rest of the brace, and prevent undesirable sagittal offsets. Preferred embodiments combine the sliding pivots with a rack and pinion neck height adjustment mechanism.
1. An orthopedic neck brace comprising:
a chin support;
a first intermediate member coupled to a first side of the chin support, the first intermediate member includes a first slot extending in a first direction;
a second intermediate member coupled to a second side of the chin support, the second intermediate member includes a second slot extending in a second direction different from the first direction;
a first side member including a third slot extending in a first vertical direction and a fifth slot positioned adjacent to a first end of the third slot;
a second side member including a fourth slot extending in a second vertical direction and a sixth slot positioned adjacent to a first end of the fourth slot;
a first pin inserted through the first slot and the third slot for coupling the first intermediate member to the first side member;
a second pin inserted through the second slot and the fourth slot for coupling the second intermediate member to the second side member;
a third pin inserted through the fifth slot to further couple the first intermediate member to the first side member and provide a moveable pivot point for the first intermediate member;
a fourth pin inserted through the sixth slot to further couple the second intermediate member to the second side member and provide a moveable pivot point for the second intermediate member; and
a height adjustment mechanism including a height control knob that, upon rotation, causes (i) the first pin to move within both the first slot and the third slot, (ii) the second pin to move within both the second slot and the fourth slot, (iii) the third pin to move within the fifth slot, and (iv) the fourth pin to move within the sixth slot.
2. The orthopedic neck brace of claim 1 , wherein
a front piece including (i) the chin support, (ii) the first side member, (iii) the second side member, and (iv) the height adjustment mechanism; and
a posterior piece coupled to the front piece by a hook and loop fastener.
3. The orthopedic neck brace of claim 1 , wherein
the first side member including the third slot being a curved slot functionally disposed between a torso rest and the chin support and the fifth slot being a curved slot functionality disposed between the third slot and an outer edge of the first side member, and
the first intermediate member including the first slot being a curved slot functionally disposed between the first side member and the chin support.
4. The orthopedic neck brace of claim 3 , wherein the second side member including the fourth slot being a curved slot functionally disposed between the torso rest and the chin support and the sixth slot being a curved slot functionally disposed between the fourth slot and an outer edge of the second side member, and
the second intermediate member including the second slot being a curved slot functionally disposed between the second side member and the chin support.
5. The orthopedic neck brace of claim 1 , wherein the height adjustment mechanism is configured to alter vertical movement of the chin support in relation to a torso rest during neck length adjustments without undesirable sagittal offsets.
6. The orthopedic neck brace of claim 1 , wherein the chin support is moved upward and backward in response to a clockwise rotation of the height control knob.
7. The orthopedic neck brace of claim 1 , wherein the second pin is moved downward along the fourth slot and inward along the second slot and the fourth pin is moved downward along the sixth slot in response rotation of the height control knob in a first rotational direction to cause downward movement of the chin support.
8. The orthopedic neck brace of claim 6 , wherein the chin support is moved downward and forward in response to a counter-clockwise rotation of the height control knob.
9. The orthopedic neck brace of claim 1 , wherein in response to rotation of the height control knob in a second rotational direction different than a first rotational direction, the first pin is moved upward along the third slot and outward along the first slot, the second pin is moved upward along the fourth slot and outward along the second slot, the third pin is moved along the fifth slot upward towards the third slot and the fourth pin is moved along the sixth slot upward towards the fourth slot to cause upward movement of the chin support.
10. The orthopedic neck brace of claim 1 , wherein the height control knob cooperates with a pinion, a first rack coupled to the first pin, and a second rack coupled to the second pin.
11. The orthopedic neck brace of claim 10 , wherein the rotation of the height control knob in a first rotational direction to cause counter-clockwise rotation of the pinion and downward movement of the first rack and the second rack and rotation of the height control knob in a second rotational direction different from the first rotational direction to cause clockwise rotation of the pinion and upward movement of the first rack and second rack.
12. An orthopedic neck brace comprising:
a chin support;
a plurality of intermediate members coupled to sides of the chin support, the plurality of intermediate members including a first intermediate member includes a first slot extending in a first direction and a second intermediate member includes a second slot extending in a second direction different from the first direction;
a plurality of side members includes (i) a first side member that comprises a third slot extending in a first vertical direction and a fifth slot positioned adjacent to a first end of the third slot and (ii) a second side member including a fourth slot extending in a second vertical direction and a sixth slot positioned adjacent to a first end of the fourth slot;
a first pin inserted through the first slot and the third slot for coupling the first intermediate member to the first side member;
a second pin inserted through the second slot and the fourth slot for coupling the second intermediate member to the second side member;
a third pin inserted through the fifth slot to further couple the first intermediate member to the first side member and provide a moveable pivot point for the first intermediate member;
a fourth pin inserted through the sixth slot to further couple the second intermediate member to the second side member and provide a moveable pivot point for the second intermediate member; and
a height adjustment mechanism including a height control knob that, upon rotation, causes (i) the first pin to move within both the first slot and the third slot and (ii) the second pin to move within both the second slot and the fourth slot,
wherein the rotation of the height control knob of the height adjustment mechanism in a first rotational direction causes the first pin to be moved downward along the third slot and inward along the first slot that also causes movement of the chin support downwardly and forward to reduce a vertical height of the orthopedic neck brace and rotation of the height control knob of the height adjustment mechanism in a second rotational direction causes movement of the chin support upwardly and backward to increase the vertical height of the orthopedic neck brace.
13. The orthopedic neck brace of claim 12 , wherein
a front piece including (i) the chin support, (ii) the first side member, (iii) the second side member, and (iv) the height adjustment mechanism; and
a posterior piece coupled to the front piece by a hook and loop fastener.
14. The orthopedic neck brace of claim 12 , wherein the first side member including the third slot being a curved slot functionally disposed between a torso rest and the chin support and the first intermediate member including the first slot being a curved slot functionally disposed between the first side member and the chin support.
15. The orthopedic neck brace of claim 14 , wherein the second side member including the fourth slot being a curved slot functionally disposed between the torso rest and the chin support and the second intermediate member including the second slot being a curved slot functionally disposed between the second side member and the chin support.
16. The orthopedic neck brace of claim 12 , wherein the height adjustment mechanism is configured to alter vertical movement of the chin support in relation to a torso rest during neck length adjustments without undesirable sagittal offsets.
17. The orthopedic neck brace of claim 12 , wherein the first pin is moved upward along the third slot and outward along the first slot in response to rotation of the height control knob in the second rotational direction to cause upward and backward movement of the chin support.
18. The orthopedic neck brace of claim 12 , wherein the second pin is moved downward along the fourth slot and inward along the second slot in response the rotation of the height control knob in the first rotational direction to cause downward movement of the chin support.
19. The orthopedic neck brace of claim 18 , wherein the chin support is moved downward and forward in response to the rotation of the height control knob in the first rotational direction corresponding to a counter-clockwise rotation of the height control knob.
20. The orthopedic neck brace of claim 12 , wherein:
the height adjustment mechanism further comprises a pinion, a first rack coupled to the first pin, and a second rack coupled to the second pin, and
the first pin is moved upward along the third slot and outward along the first slot and the second pin is moved upward along the fourth slot and outward along the second slot in response rotation of the height control knob in the second rotational direction to cause clockwise rotation of the pinion and upward movement of the first rack and the second rack.
21. An orthopedic neck brace comprising:
a chin support;
a first intermediate member coupled to a first side of the chin support, the first intermediate member includes a first slot extending in a first direction;
a second intermediate member coupled to a second side of the chin support, the second intermediate member includes a second slot extending in a second direction different from the first direction;
a first side member including a third slot extending in a first vertical direction and a fifth slot positioned adjacent to a first end of the third slot;
a second side member including a fourth slot extending in a second vertical direction and a sixth slot positioned adjacent to a first end of the fourth slot;
a first pin inserted through the first slot and the third slot for coupling the first intermediate member to the first side member;
a second pin inserted through the second slot and the fourth slot for coupling the second intermediate member to the second side member;
a third pin inserted through the fifth slot to further couple the first intermediate member to the first side member and provide a moveable pivot point for the first intermediate member;
a fourth pin inserted through the sixth slot to further couple the second intermediate member to the second side member and provide a moveable pivot point for the second intermediate member; and
a height control knob that, upon rotation, causes (i) the first pin to move within both the first slot and the third slot, (ii) the second pin to move within both the second slot and the fourth slot, (iii) the third pin to move within the fifth slot, and (iv) the fourth pin to move within the sixth slot.
22. The orthopedic neck brace of claim 21 , wherein the first side member including the third slot being the curved slot functionally disposed between a torso rest and the chin support and the fifth slot being a curved slot functionality disposed between the third slot and an outer edge of the first side member.
23. The orthopedic neck brace of claim 22 , wherein the second side member including the fourth slot being the curved slot functionally disposed between the torso rest and the chin support and the sixth slot being a curved slot functionality disposed between the fourth slot and an outer edge of the second side member.
24. The orthopedic neck brace of claim 21 , wherein the height control knob cooperates with a pinion, a first rack coupled to the first pin, and a second rack coupled to the second pin and rotation of the height control knob in a first rotational direction to cause counter-clockwise rotation of the pinion, downward movement of the first rack and second rack and corresponding downward movement of the chin support while rotation of the height control knob in a second rotational direction to cause clockwise rotation of the pinion and upward movement of the first rack and second rack and corresponding upward movement of the chin support.
25. The orthopedic neck brace of claim 21 , wherein the fifth slot is positioned adjacent to a first end of the third slot that is closer to the chin support than a second end of the fourth slot and the sixth slot is positioned adjacent to a first end of the fourth slot that is closer to the chin support than the second end of the fourth slot.