Device for preventing or relieving pain in the lower back
AssigneeB. To B. Ltd.
InventorOri Ilan
Life of this patent
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Abstract
A device for preventing or relieving pain in the lower back of a human subject includes a body-engaging element configured for engaging a region of the subject's body inferior to the lumbar vertebrae while the subject lies in a supine position. A drive mechanism is configured to move the body-engaging element through a repetitive cyclic motion which includes an operative motion along a first path including a primarily vertical lifting motion followed by a primarily horizontal tensioning motion, and a return motion along a second path, the second path lying generally below the first path. The body-engaging element preferably includes at least one surface configured for engaging a rear surface of both of the subject's legs from the knees downwards.
Claims8
A device for preventing or relieving pain in the lower back of a human subject, the device being configured for use while the subject lies in a supine position on an underlying surface, the device comprising:
- (a) a body-engaging element configured for engaging a body part of the subject inferior to the subject's hip joint joining the thigh to the hip;
- and
- (b) a rotary drive for driving the body engaging element, said rotary drive including a pivot pin pivotally mounting the body engaging element and slidable during the rotation of said rotary drive to drive the body-engaging element, and the body part when engaged thereby, from an initial position through repetitive closed-loop cycles each including:
- (i) a forward stroke path having a vertical lifting component for lifting the engaged body part to neutralize the natural arched concavity of the subject's back, and a horizontal pulling component for tensioning the engaged body part, and the subject's thigh to relieve pressure in the subject's lumber vertebrae;
- and
- (ii) a return stroke path, different from and underlying the forward stroke path, for returning the engaged body part to its initial position;
- wherein said drive is enclosed within a frame, said frame includes a slot, and said slot in which said pivot pin is slidable is formed at an incline in said frame.
Dependencies are inferred from the claim text.