US 11,806,087 B2
Insertion device positioning guidance system and method
Doron Besser, Tel Aviv (IL); Guy Ben Ezra, Karkur (IL); Ran Cohen, Petah-Tikva (IL); Yoav Stein, Matan (IL); and Amit Cohen, Petah-Tikva (IL)
Assigned to ENVIZION MEDICAL LTD., Tel Aviv (IL)
Filed by ENVIZION MEDICAL LTD., Tel Aviv (IL)
Filed on Jan. 20, 2021, as Appl. No. 17/153,060.
Application 17/153,060 is a continuation of application No. 15/997,854, filed on Jun. 5, 2018, granted, now 10,898,273.
Application 15/997,854 is a continuation of application No. 15/679,469, filed on Aug. 17, 2017, granted, now 10,010,374, issued on Jul. 3, 2018.
Claims priority of provisional application 62/376,520, filed on Aug. 18, 2016.
Prior Publication US 2021/0137608 A1, May 13, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 34/20 (2016.01); A61B 5/06 (2006.01); A61B 1/273 (2006.01); A61J 15/00 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 5/0033 (2013.01); A61B 5/0036 (2018.08); A61B 5/061 (2013.01); A61B 5/066 (2013.01); A61B 5/742 (2013.01); A61B 5/743 (2013.01); A61B 1/273 (2013.01); A61B 5/4233 (2013.01); A61B 2034/2051 (2016.02); A61B 2034/2072 (2016.02); A61B 2034/2074 (2016.02); A61J 15/00 (2013.01); A61J 15/0088 (2015.05)] 11 Claims
OG exemplary drawing
 
1. A guidance system for positioning an enteral tube comprising:
an electromagnetic field generator configured to be positioned externally to a subject's torso, said electromagnetic field generator configured to generate an electromagnetic field covering a treatment area;
an enteral tube comprising an electromagnetic sensor at a distal tip of the enteral tube, the electromagnetic sensor configured to sense the electromagnetic field;
a registration sensor configured to mark at least a first and a second anatomic location and/or orientation on the subject's torso; and
a processing circuitry configured to
continuously obtain signals from the electromagnetic sensor,
continuously determine the position of a distal tip of the enteral tube with respect to the first and the second anatomic locations marked by the registration sensor during the insertion of the enteral tube, based on the signals obtained from the electromagnetic sensor;
displaying a path of the enteral tube relative to the first and the second anatomic locations during the insertion of the enteral tube; wherein the path is generated based on the continuously determined positions of the distal tip.