Method and Apparatus for a Radiolucent and MRI Compatible Cranial Stabilization Pin

摘要

A substantially radiolucent cranial stabilization pin is adapted for use with a fixture for immobilizing a patient's head during a medical procedure. The pin includes a tip and a body, which are secured together to form the pin. The tip and body are constructed from non-ferrous, non-magnetic materials that are biocompatible. The tip and body are safe for use with, and compatible with, imaging techniques including MR imaging and CT imaging. In some examples the tip is a titanium insert and the body is molded within and around at least a portion of the tip. In some versions, the tip includes a hollow portion and one or more projections extending within the hollow portion. The molded body flows into the hollow portion and around the one or more projections of the tip creating a secure pin suitable to withstand torque and axial forces observed in use.

主权项

1. A skull pin for use with a stabilizing device, wherein the pin comprises:
a. a tip, wherein the tip is configured to contact a patient's skull, wherein the tip comprises:
i. a conical portion,ii. a point at a distal end of the tip, wherein the point is configured to contact the patient's skull,iii. a substantially thin sidewall, wherein the substantially thin sidewall comprises an exterior surface and an interior surface,iv. a hollow interior, andiv. one or more protrusions formed in the interior surface of the sidewall; and b. a molded body, wherein the molded body comprises;
i. a proximal end dimensioned to fit in an opening of a skull clamp arm, andii. a distal end secured to and extending within the hollow interior of the tip and contacting the one or more protrusions, wherein the tip is an insert piece bonded to the molded body during molding to form a unitary structure for the skull pin where the tip is non-removable from the molded body.