Height, depth and circumferential adjustment mechanisms for cervical collar

An adjustable cervical collar comprising:

• a body portion adapted and configured to rest against an anterior portion of a subject;
• a chin portion movably coupled to the body portion;
• a posterior component adapted and configured to rest on a posterior surface of the subject's neck and couple to the body portion;
• a first shaft assembly and a second shaft assembly each rotatably mounted on opposing lateral regions of the body portion, the first shaft assembly and the second shaft assembly each comprising:
• a lead screw adjustably engaged with the chin portion such that rotation of the lead screw causes the chin portion to raise and lower, and
• a drive shaft comprising flexible joints and configured to drive rotation of the lead screw;
• and
• an adjustment knob rotatably engaged with the drive shaft of the first shaft assembly and rotatably engaged with the drive shaft of the second shaft assembly;
• and
• a strap alignment mechanism configured and adapted to connect the posterior component to the body portion.

A method of using an adjustable cervical collar, the method comprising:

• positioning a body portion of the adjustable cervical collar against an anterior portion of a subject, wherein the adjustable cervical collar comprises a chin portion movably coupled to the body portion and configured to be disposed under a chin of the subject;
• positioning a posterior component of the adjustable cervical collar on the posterior surface of a neck of the subject;
• coupling a first portion of a strap of a strap alignment mechanism of the adjustable cervical collar to an anterior mating piece of the body portion, at least a portion of the strap alignment mechanism coupled to the posterior component;
• and
• rotating an adjustment knob positioned on the body portion to, thereby, raise and lower the chin portion to a desired orientation with respect to the chin of the subject, wherein:
• the adjustable cervical collar further comprises a first shaft assembly and a second shaft assembly each rotatably mounted on opposing lateral regions of the body portion, the first shaft assembly and a second shaft assembly each comprising:
• a lead screw adjustably engaged with the chin portion such that rotation of the lead screw causes the chin portion to raise and lower, and
• a drive shaft comprising flexible joints and configured to drive rotation of the lead screw;
• and
• the adjustable cervical collar further comprises an adjustment knob rotatably engaged with the drive shaft of the first shaft assembly and rotatably engaged with the drive shaft of the second shaft assembly.