Title:
NON-CONTACT, NON-RADIATION DEVICE THAT ACCURATELY LOCATES MULTIPLE IMPLANTS IN PATIENT'S BODY
Document Type and Number:
WIPO Patent Application WO/2023/020241
Kind Code:
A1
Abstract:
A system and devices are provided for accurate localization of orthopedic implants based on magnetic tracking approach (MTA) technology and without radiation. The system includes at least one magnetic beacon (10, 11, 12) that is joined to an orthopedic screw/implant fixed to a patient's spine. A detector (14) in the form of a magnetic sensor array detects the magnetic field from the beacon (10, 11, 12) and produces an electrical signal in response thereto. A computer (16) using a multi-objective magnetic location algorithm tracks the spatial position and movement of the beacon (10, 11, 12) based on the electrical signal, and hence tracks the patient's spine.
Inventors:
QI WEICHEN (CN)
ZHANG TENG (CN)
CHEUNG PUI YIN (CN)
ZHANG TENG (CN)
CHEUNG PUI YIN (CN)
Application Number:
PCT/CN2022/108627
Publication Date:
February 23, 2023
Filing Date:
July 28, 2022
Export Citation:
Assignee:
UNIV HONG KONG (CN)
International Classes:
A61B5/05; A61F2/44
Domestic Patent References:
| WO1996008999A1 | 1996-03-28 |
Foreign References:
| US20100249576A1 | 2010-09-30 | |||
| CN112932750A | 2021-06-11 | |||
| US20080114270A1 | 2008-05-15 | |||
| US20070276218A1 | 2007-11-29 | |||
| US20070225595A1 | 2007-09-27 | |||
| US5944023A | 1999-08-31 | |||
| CN106714720A | 2017-05-24 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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