Flexible skin based patient tracker for optical navigation

Patent metadata

Field	Value
Publication number	US-10413377-B2
Application number	US-201514663034-A
Country	US
Kind code	B2
Filing date	Mar 19, 2015
Priority date	Mar 19, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A skin-based patient tracking apparatus for surgical navigation. The apparatus includes an adhesive layer, a plurality of surgical tracking elements, a base layer between the adhesive layer and the plurality of surgical tracking elements, and an outer layer covering the plurality of surgical tracking elements.

First claim

What is claimed is:

1. A method for tracking movement of a patient during surgery comprising:
acquiring image data by imaging the patient with a base layer of a skin-based patient tracking apparatus secured to the patient's skin over a surgical site with an adhesive material of an adhesive layer of the skin-based patient tracking apparatus, the skin-based patient tracking apparatus including a plurality of optical surgical tracking elements for use in continuously tracking movement of the patient's skin during surgery;
registering patient position to the image data;
tracking movement of the patient based on movement of the plurality of optical surgical tracking elements; and
tracking movement of the patient's skin when an incision in the patient's skin is made through the skin-based patient tracking apparatus by determining an average position of the optical surgical tracking elements both before and after making the incision;
wherein the adhesive material sticks the skin-based patient tracking apparatus to the patient's skin such that movement of the patient's skin results in corresponding movement of the surgical tracking elements to provide the skin-based tracking apparatus as a dynamic reference frame for use in continuously tracking movement of a patient's skin during surgery.

Assignees

• Medtronic Navigation Inc

Inventors

• Capote Marco
• Dicorleto Matthew F

Classifications

• A61B2090/3991

  having specific anchoring means to fixate the marker to the tissue, e.g. hooks · CPC title

• A61B2090/3983

  Reference marker arrangements for use with image guided surgery · CPC title

• A61B2090/3945

  Active visible markers, e.g. light emitting diodes · CPC title

• A61B2090/3937

  Visible markers · CPC title

• A61B2090/363

  Use of fiducial points · CPC title