US 11,712,169 B2
Electromagnetic (EM) probes, methods of using such EM probes and systems which use such electromagnetic EM probes
Amir Saroka, Herzlia (IL); Leonid Voshin, Kfar-Saba (IL); Yiftach Barash, Tel-Aviv (IL); Benyamin Almog, Kibbutz Givat Brenner (IL); and Tal Levi, Tel-Aviv (IL)
Assigned to Sensible Medical Innovations Ltd., Netanya (IL)
Filed by Sensible Medical Innovations Ltd., Netanya (IL)
Filed on Jan. 25, 2021, as Appl. No. 17/156,718.
Application 17/156,718 is a continuation of application No. 16/355,946, filed on Mar. 18, 2019, granted, now 10,898,102.
Application 16/355,946 is a continuation of application No. 14/370,777, granted, now 10,231,641, issued on Mar. 19, 2019, previously published as PCT/IL2013/050010, filed on Jan. 3, 2013.
Claims priority of provisional application 61/583,210, filed on Jan. 5, 2012.
Prior Publication US 2021/0137404 A1, May 13, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/05 (2021.01); A61B 5/0507 (2021.01); H01Q 9/27 (2006.01); H01Q 1/36 (2006.01); H01Q 17/00 (2006.01)
CPC A61B 5/05 (2013.01) [A61B 5/0507 (2013.01); H01Q 9/27 (2013.01); H01Q 1/36 (2013.01); H01Q 17/00 (2013.01); Y10T 29/49016 (2015.01)] 18 Claims
OG exemplary drawing
 
1. An electromagnetic (EM) probe for monitoring at least one biological tissue, comprising:
a spiral antenna having at least one spiral arm with a spiral path originated from a feeding point; and
an EM radiation absorbing layer mounted along a plurality of turnings of said at least one spiral arm of the antenna, said EM radiation absorbing layer having:
absorbing material between a plurality of gaps wherein the absorbing material is not present; and
wherein said EM radiation absorbing layer is formed such that a spiral propagation path of said at least one spiral arm passes via said plurality of gaps;
wherein the EM radiation absorbing layer is disposed in a plurality of concentric regions corresponding to portions of said spiral antenna having equal surface of antenna conductor;
wherein any of said plurality of concentric regions has an EM radiation absorption coefficient greater than any other of said plurality of concentric regions it encloses;
wherein an amount of the absorbing material disposed in each of said plurality of concentric regions gradually increases as a function of a distance of each of said plurality of concentric regions from said feeding point.