Cervical collar with independent height and circumference adjustability

Abstract

An adjustable cervical collar designed to accommodate a broad range of prospective wearers with unique physical attributes, and to restrict the movements of the wearer's cervical spine, including rotation, flexion, extension, and lateral bending. The cervical collar includes a front portion and back portion, which may be adjusted in relation to one other to vary the circumference of the cervical collar. The front portion includes upper and lower plastic portions which may be adjusted to vary the height of the cervical collar, and a front thoracic extender which may be adjusted to achieve a desired restrictiveness of flexion movement. The back portion includes occipital and back thoracic extenders which may be adjusted to achieve a desired restrictiveness of extension movement. The adjustable features may be operated independently of one another. The adjustable features include locking means to ensure that the cervical collar is securely applied to the wearer.

What is claimed is: 
     
         1 . A cervical collar comprising:
 a first upper plastic portion;   a first lower plastic portion;   a first thoracic extender;   a sliding connection between the first upper plastic portion and the first lower plastic portion that allows the first upper plastic portion to be adjusted and secured with respect to the first lower plastic portion; and   a sliding connection between the first thoracic extender and the first lower plastic portion that allows the first thoracic extender to be adjusted and secured with respect to the first lower plastic portion.   
     
     
         2 . The cervical collar of  claim 1 , further comprising padding fastened to the first upper plastic portion, the first lower plastic portion, and the first thoracic extender, wherein the padding is formed of a different material than the first upper plastic portion, the first lower plastic portion, and the first thoracic extender. 
     
     
         3 . The cervical collar of  claim 1 , further comprising:
 a front portion comprising the first upper plastic portion and the first lower plastic portion;   a back portion; and   a fastening device for connecting the front portion to the back portion,   wherein the fastening device allows the back portion to be adjusted and secured with respect to the front portion.   
     
     
         4 . The cervical collar of  claim 3 , wherein the front portion further comprises a tracheal opening. 
     
     
         5 . The cervical collar of  claim 3 , wherein the back portion further comprises a spinal access opening. 
     
     
         6 . The cervical collar of  claim 3 , wherein the back portion further comprises:
 a second upper plastic portion;   a second lower plastic portion; and   a sliding connection between the second upper plastic portion and the second lower plastic portion that allows the second upper plastic portion to be adjusted and secured with respect to the second lower plastic portion.   
     
     
         7 . The cervical collar of  claim 6 , wherein the back portion further comprises:
 a second thoracic extender; and   a sliding connection between the second thoracic extender and the second lower plastic portion that allows the second thoracic extender to be adjusted and secured with respect to the second lower plastic portion.   
     
     
         8 . The cervical collar of  claim 6 , further comprising padding fastened to the second upper plastic portion, and the second lower plastic portion, wherein the padding is formed of a different material than the first upper plastic portion, and the first lower plastic portion. 
     
     
         9 . The cervical collar of  claim 1 , wherein each of the sliding connections includes a lock tab and a lock boss. 
     
     
         10 . The cervical collar of  claim 1 , further comprising a separate right lateral support and a separate left lateral support. 
     
     
         11 . The cervical collar of  claim 1 , further comprising:
 right and left upper wing portions disposed at opposite lateral ends of the first upper plastic portion;   right and left lower wing portions disposed at opposite lateral ends of the first lower plastic portion;   a sliding connection between the right upper wing portion and right lower wing portion that allows the right upper wing portion to be adjusted and secured with respect to the right lower wing portion; and   a sliding connection between the left upper wing portion and the left lower wing portion that allows the left upper wing portion to be adjusted and secured with respect to the left lower wing portion.   
     
     
         12 . The cervical collar of  claim 1 , wherein the cervical collar is configured such that adjustment of the first upper plastic portion and the first thoracic extender does not result in movement of the first lower plastic portion, when the cervical collar is worn by a wearer. 
     
     
         13 . The cervical collar of  claim 7 , wherein the first and second thoracic extenders include a fastener material attached thereto, and wherein the fastener material is configured to be secured to a wearer's body. 
     
     
         14 . The cervical collar of  claim 13 , further comprising:
 a first lumbar extender;   a second lumbar extender;   a sliding connection between the first lumbar extender and the first thoracic extender that allows the first lumbar extender to be adjusted and secured with respect to the first thoracic extender;   a sliding connection between the second lumbar extender and the second thoracic extender that allows the second lumbar extender to be adjusted and secured with respect to the second thoracic extender,   wherein the first and second lumbar extenders include a fastener material attached thereto, and wherein the fastener material is configured to be secured to a wearer's body.   
     
     
         15 . The cervical collar of  claim 3 , further comprising cranial restraint extenders having a fastener material attached thereto, wherein the fastener material is configured to be secured to a wearer's head. 
     
     
         16 . A cervical collar comprising:
 a front portion having an upper height adjustment support, a lower height adjustment support, and a front thoracic extender;   a back portion having an occipital support and a back thoracic extender; and   a fastening device for connecting the front portion to the back portion,   wherein the upper height adjustment support and the lower height adjustment support are configured to allow a height of the cervical collar to be adjusted,   wherein the fastener device is configured to allow a circumference of the cervical collar to be adjusted, and   wherein the height of the cervical collar, the circumference of the cervical collar, the front thoracic extender, the occipital support, and the back thoracic extender are each adjustable, independently of one another.   
     
     
         17 . The cervical collar of  claim 16 , wherein the upper and lower height adjustment supports, the front thoracic extender, the occipital support, and the back thoracic extender are each slidably adjustable, and wherein the upper and lower height adjustment supports, the front thoracic extender, the occipital support, and the back thoracic extender each include a locking means. 
     
     
         18 . The cervical collar of  claim 16 , wherein the front portion and the back portion each include a separate padding. 
     
     
         19 . A cervical collar comprising:
 a first upper plastic portion;   a first lower plastic portion; and   a sliding connection between the first upper plastic portion and the first lower plastic portion that allows the first upper plastic portion to be adjusted and secured with respect to the first lower plastic portion,   wherein the cervical collar is configured such that, when worn by a wearer, the first lower plastic portion is configured to remain stationary with respect to the wearer during adjustment of the first upper plastic portion.   
     
     
         20 . The cervical collar of  claim 19  further comprising:
 a first thoracic extender; and 
 a sliding connection between the first thoracic extender and the first lower plastic portion that allows the first thoracic extender to be adjusted and secured with respect to the first lower plastic portion, 
 wherein the cervical collar is configured such that, when worn by a wearer, the first lower plastic portion is configured to remain stationary with respect to the wearer during adjustment of the first thoracic extender. 
 
     
     
         21 . The cervical collar of  claim 19 , wherein the first upper plastic portion is formed from a single unitary piece of plastic, and wherein the first lower plastic portion is formed from a separate single unitary piece of plastic. 
     
     
         22 . The cervical collar of  claim 19 , wherein the cervical collar is configured such that the first upper plastic portion and the first lower plastic portion are narrower than the mandible of the wearer.