US 12,350,099 B2
Rotational intravascular ultrasound probe and method of manufacturing the same
Stephen Charles Davies, Ed Dorado Hills, CA (US); Norman H. Hossack, Folsom, CA (US); and Peter Smith, Sacramento, CA (US)
Assigned to PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
Filed by PHILIPS IMAGE GUIDED THERAPY CORPORATION, San Diego, CA (US)
Filed on Sep. 18, 2023, as Appl. No. 18/369,758.
Application 18/369,758 is a continuation of application No. 17/965,008, filed on Oct. 13, 2022, granted, now 11,759,172.
Application 17/965,008 is a continuation of application No. 16/801,107, filed on Feb. 25, 2020, abandoned.
Application 16/801,107 is a continuation of application No. 13/919,797, filed on Jun. 17, 2013, granted, now 10,575,819, issued on Mar. 3, 2020.
Application 13/919,797 is a continuation of application No. 12/339,477, filed on Dec. 19, 2008, granted, now 8,465,686, issued on Jun. 18, 2013.
Prior Publication US 2024/0000426 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 8/12 (2006.01); A61B 8/00 (2006.01); A61B 8/08 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); G01S 15/89 (2006.01); A61B 5/00 (2006.01); G01S 7/52 (2006.01)
CPC A61B 8/445 (2013.01) [A61B 8/0891 (2013.01); A61B 8/12 (2013.01); A61B 8/44 (2013.01); A61B 8/4444 (2013.01); A61B 8/4455 (2013.01); A61B 8/4461 (2013.01); A61B 8/4483 (2013.01); A61B 8/4494 (2013.01); B29C 45/0053 (2013.01); B29C 45/14549 (2013.01); G01S 15/8952 (2013.01); A61B 5/0066 (2013.01); A61B 5/0084 (2013.01); A61B 5/0095 (2013.01); A61B 8/08 (2013.01); A61B 8/0833 (2013.01); A61B 8/085 (2013.01); G01S 7/52092 (2013.01); Y10T 29/49005 (2015.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a rotational intravascular ultrasound (IVUS) catheter comprising:
a drive cable configured to rotate;
a housing attached to a distal portion of the drive cable;
a transducer subassembly disposed within the housing and comprising:
a first matching layer;
a first electrode layer;
a transducer layer configured to obtain a circumferential image of a blood vessel;
a second electrode layer; and
a second matching layer,
wherein the housing and the transducer subassembly are configured to rotate during rotation of the drive cable,
wherein the first matching layer and the first electrode layer are positioned on a frontside of the transducer layer,
wherein the second electrode layer and the second matching layer are positioned on a backside of the transducer layer,
wherein the housing directly contacts the second matching layer.