Registration of optical shape sensing tool

US11259774B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Shyam Bharat · Arlington, US
• Ehsan Dehghan Marvast · Palo Alto, US
• Molly Lara Flexman · New York, US
• Jochen Kruecker · Andover, US
• Marissa Patricia Dreyer · Ketchum, US
• Amir Mohammad Tahmasebi Maraghoosh · Ridgefield, US

Key dates

• Filing date: Nov 30, 2015
• Grant date: Mar 1, 2022
• Expiry date: Jun 21, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2034/2061
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An intervention system employs an optical shape sensing tool (32) (e.g., a brachytherapy needle having embedded optical fiber(s)) and a grid (50, 90) for guiding an insertion of the optical shape sensing tool (32) into an anatomical region relative to a grid coordinate system. The intervention system further employs a registration controller (74) for reconstructing a segment or an entirety of a shape of the optical shape sensing tool (32) relative to a needle coordinate system, and for registering the needle coordinate system to the grid coordinate system as a function of a reconstructed segment/entire shape of the optical shape sensing tool (32) relative to the grid (50, 90) (i.e., reconstruction of a segment/entire shape of the OSS needle inserted into/through the grid serving as a basis for the grid/needle coordinate system registration).