Bi-level headrest, body support structure and method of supporting a user's cranium

摘要

A method of supporting a user's cranium includes directly supporting at least a portion of a first user's T1-T6 vertebrae with a primary support and directly supporting a junction between the first user's occipital bone and C1 vertebrae with a secondary support spaced from the primary support. The positions of the primary and secondary supports may be independently adjusted relative to each other. Various body support structures and headrest structures are also provided.

主权项

1. A method of supporting a user's cranium, the user having an occipital bone and a pair of scapulae, the method comprising:
adjusting a position of a secondary support along a longitudinal axis, the secondary support including a secondary support surface having a surface area smaller than the user's occipital bone; adjusting a position of a primary support along said longitudinal axis relative to said position of said secondary support independent of said adjusting said position of said secondary support, the primary support including a primary support surface having a width smaller than a spacing between the user's scapulae; directly supporting at least a portion of a user's T1-T6 vertebrae with said primary support surface, wherein a spine of said user defines a longitudinal direction when supported by said primary support; and directly supporting a junction at or between said user's occipital bone and C1 vertebrae with said secondary support surface spaced from said primary support along a longitudinal axis extending in said longitudinal direction.