US 11,751,325 B2
Substrate for medical device and medical device
Kiyotaka Kanno, Saitama (JP)
Assigned to Sony Olympus Medical Solutions Inc., Tokyo (JP)
Filed by Sony Olympus Medical Solutions Inc., Tokyo (JP)
Filed on Jul. 14, 2020, as Appl. No. 16/928,069.
Application 16/928,069 is a continuation of application No. 15/516,850, granted, now 10,749,244, previously published as PCT/JP2015/073255, filed on Aug. 19, 2015.
Claims priority of application No. 2014-218673 (JP), filed on Oct. 27, 2014.
Prior Publication US 2020/0343621 A1, Oct. 29, 2020
Int. Cl. H05K 1/02 (2006.01); G02B 23/24 (2006.01); A61B 1/00 (2006.01); H05K 1/18 (2006.01); A61B 1/04 (2006.01); H04N 23/00 (2023.01); A61N 1/372 (2006.01); H01Q 1/22 (2006.01); H01Q 21/28 (2006.01)
CPC H05K 1/0262 (2013.01) [A61B 1/00124 (2013.01); A61B 1/04 (2013.01); A61N 1/37229 (2013.01); G02B 23/24 (2013.01); H01Q 1/2283 (2013.01); H01Q 21/28 (2013.01); H04N 23/00 (2023.01); H05K 1/0215 (2013.01); H05K 1/185 (2013.01); H05K 2201/0776 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A substrate for a medical device configured to be included in the medical device, a portion of the medical device is configured to be brought into contact with or inserted into a subject, the substrate for the medical device comprising:
a patient circuit that is conductively connected to the portion of the medical device that is configured to be brought into contact with or inserted into the subject;
a ground-side circuit configured to perform at least one of transmission of a signal, reception of a signal, and supply of electric power to the patient circuit, the ground-side circuit being grounded by a protective ground to ensure safety of a manipulator of the medical device;
an insulating layer provided between the patient circuit and the ground-side circuit and providing electrical insulation between the patient circuit and the ground-side circuit; and
an isolated circuit provided in a position apart from the patient circuit and the ground-side circuit on the insulating layer, the isolated circuit is completely surrounded by an insulating layer arranged between the patient circuit and the ground-side circuit in a plan view, and no impedance element having an impedance lower than the insulating layer is connected to the isolated circuit,
wherein the isolated circuit is placed at a position on at least one of a first external surface and a second external surface where stray capacitance occurs between the patient circuit and the ground-side circuit.