Spinal Dynamics Corporation

Winston G Morrow

A method is provided for improving posture and relieving back pain of a person in a supine position. The invention includes the steps of pressing a convex pillow against the region of the ilia, sacrum, and fifth lumbar vertebra to produce a substantial sacral base angle and to fully oppose any moment tending to cause rotational shifting of the pelvis, and supporting the thighs and calves in an elevated position such that the thighs extend upwardly at an angle of from about 53.degree. to 63.degree. from horizontal, and the calves extend at an angle of from about 0.degree. to 20.degree. downwardly from horizontal. The method normally also includes simultaneously resiliently supporting the back of the neck in an elevated position while permitting the cervical vertebrae to maintain their normal, physiologic curvature, in supporting the head of the person in an elevated position while maintaining the cervical vertebrae and the occiput in an unflexed, physiologic position.

Physiologic support system and method

A composite head and neck cushion is provided for use by a person in a supine position. The cushion includes a first, resilient member having an upper surface which conforms to and supports the physiologic curvature of the cervical vertebrae. A second member supports the head in a raised, but unflexed position. The invention may alternatively be described as a method for cushioning the head and neck. The method comprises (1) resiliently supporting the back of the neck of the person in an elevated position while permitting the cervical vertebrae to maintain their normal, physiologic curvature, and (2) supporting the head of the person in an elevated position while maintaining the cervical vertebrae and the occiput in an unflexed, physiologic position.

Head and neck cushion

A method and means for providing pelvic support to improve posture and relieve lower back pain is provided. The method comprises pressing a convex pillow against the region of the ilia, sacrum, and fifth lumbar vertebra to produce a substantial sacral base angle and to fully oppose any moment tending to cause rotational shifting of the pelvis. Another way to define the invention is a back pillow which may be used in a chair having a seat member, wherein the back pillow includes a convexly shaped support pillow for maintaining the pelvis of the user at a sufficient sacral base angle that substantially the entire weight of the upper portion of the user's body is supported by the seat member. The invention may alternatively be described as a chair comprising a substantially horizontal convex seat for supporting the ischial tuberosities of the occupant in the vicinity of the apex thereof, and a substantially vertical, generally convex support means for supporting the posterior portion of the occupant's pelvis at a sacral base angle of from between 25 and 45 degrees, and so that a gravitational line drawn downwardly from the center of L-3 intersects the anterior one-third of the sacral base.

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Lake Oswego, OR, United States of America

Winston G Morrow