US 12,082,972 B2
Devices, systems, and methods for reducing signal noise in endoscopic rotational imaging
George Wilfred Duval, Sudbury, MA (US); Laura Emily Richards, Worcester, MA (US); and James J. Scutti, Norwell, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED INC., Maple Grove, MN (US)
Filed on May 19, 2022, as Appl. No. 17/748,237.
Claims priority of provisional application 63/190,421, filed on May 19, 2021.
Prior Publication US 2022/0370036 A1, Nov. 24, 2022
Int. Cl. A61B 8/12 (2006.01); A61B 8/00 (2006.01); A61M 25/01 (2006.01)
CPC A61B 8/12 (2013.01) [A61B 8/445 (2013.01); A61M 25/0138 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical imaging device, comprising:
an elongate member configured to access a peripheral airway;
a hub coupled to a proximal end of the elongate member, the hub comprising a connector and a rotational transformer having first and second ends, the first end coupled to the connector, the connector configured to couple with a controller;
a proximal imaging core disposed in a proximal portion of the elongate member, the proximal imaging core comprising a proximal drive cable and a first shielded twisted pair (STP) of a first diameter, the proximal imaging core having first and second ends, the first end of the proximal imaging core coupled to the second end of the rotational transformer;
a distal imaging core disposed in a distal portion of the elongate member, the distal imaging core comprising a distal drive cable and a second STP of a second diameter different from the first diameter, the distal imaging core having first and second ends, and the second end of the distal imaging core coupled to a rotational imaging transducer; and
an impedance matching network disposed in the elongate member, the impedance matching network coupled between the second end of the proximal imaging core and the first end of the distal imaging core,
wherein each of the first STP and the second STP comprise a shield and a pair of insulated conductors.