LOCATION TRACKING OF A METALLIC OBJECT IN A LIVING BODY

• US 20150335310A1
• Filed: 08/04/2015
• Published: 11/26/2015
• Est. Priority Date: 05/27/2008
• Status: Abandoned Application

• Current Assignee: ZOLL Medical Israel Limited (Asahi Kasei Corporation)
• Original Assignee: Kyma Medical Technologies Ltd. (Asahi Kasei Corporation)
• Inventors: Bernstein, Assaf, Weinstein, Uriel, Cohen Sharvit, Vered, Oppenheim, Dov
• Application Number:
  US14/818,300
• Publication Number:
  US 20150335310A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2562/143 for coupling microwaves
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/0833 involving detecting or locating foreign bodies or organic structures
• CPC Class Codes: A61B 8/42 Details of probe positioning or probe attachment to the patient
• CPC Class Codes: A61B 8/4245 involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
• CPC Class Codes: A61B 8/4254 using sensors mounted on the probe
• CPC Class Codes: A61B 8/543 involving acquisition triggered by a physiological signal

Abstract

A method and apparatus are provided for determining and tracking location of a metallic object in a living body, and then directing a second modality such as ultrasound waves to the determined location. The metal detector may be a radar detector adapted to operate on a living body. The adaption may include disposing a transfer material having electromagnetic properties similar to the body between the radar detector and the living body, ECG gating the radar detector, and/or employing an optimal estimator with a model of expected stent movement in a living body. Applications include determination of extent of in-stent restenosis, performing therapeutic thrombolysis, or determining operational features of a metallic implant.

Claims

1. Apparatus for use in diagnostic imaging, comprising:

a metal detector adapted for determining location of a metallic object in a living body;

an ultrasound probe; and

guiding means for directing said probe at the location determined by the metal detector.

2-51. -51. (canceled)