US 10,893,896 B2 · Cranioplasty plate assembly with pivotal struts

Abstract

An adjustable cranioplasty plate assembly is provided for use following a craniectomy. The assembly includes a ring which is attached to the skull around the skull opening and a plate adjustably mounted to the ring. The plate is moveable between a raised position spaced above the ring and a lower position substantially flush with the ring. The plurality of extendable and retractable struts extends between the ring and the plate to provide the plate adjustability. The plurality of stay cables extending between the ring and the plate provide lateral stability in the raised position. The assembly replaces the native bone and eliminates the need for subsequent cranioplasty surgery. In one embodiment, the plate includes a rigid central portion, three rigid mounting tabs, and a plurality of malleable tapered perimeter petals which provide a smooth interface between the plate and the skull of the patient.

Claims18

Dependent claims

A cranioplasty plate assembly, comprising:

a plate to cover a skull opening and having opposite upper and lower surfaces and a perimeter edge;
a ring adapted to be fixed to the skull;
a plurality of struts, each having opposite inner and outer ends attached to the plate and to the ring for movement between a raised position to maintain the plate at a spaced distance above the skull and a lowered position for positioning the plate adjacent the skull;
and
a contraction system to move the inner ends radially inwardly towards the center of the plate, wherein the contraction system includes a plurality of wires connected to the inner ends of the struts and a spool to wind the wires.

2 more elements

Dependencies are inferred from the claim text.

Cranioplasty plate assembly with pivotal struts

Life of this patent

Cranioplasty plate assembly with pivotal struts

Life of this patent

Abstract

Claims18