US 11,684,427 B2
Apparatus and method for tracking a medical ultrasonic object
Peng Zheng, Chandler, AZ (US)
Assigned to C.R. Bard, Inc., Franklin Lakes, NJ (US)
Appl. No. 16/649,902
Filed by C. R. Bard, Inc., Franklin Lakes, NJ (US)
PCT Filed Sep. 29, 2017, PCT No. PCT/US2017/054251
§ 371(c)(1), (2) Date Mar. 23, 2020,
PCT Pub. No. WO2019/066888, PCT Pub. Date Apr. 4, 2019.
Prior Publication US 2020/0268455 A1, Aug. 27, 2020
Int. Cl. A61B 34/20 (2016.01); A61B 8/08 (2006.01); A61B 8/00 (2006.01); A61B 17/22 (2006.01); A61B 90/00 (2016.01); A61B 17/00 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 8/0841 (2013.01); A61B 8/461 (2013.01); A61B 8/488 (2013.01); A61B 17/22012 (2013.01); A61B 2017/00137 (2013.01); A61B 2017/22014 (2013.01); A61B 2034/2063 (2016.02); A61B 2034/2065 (2016.02); A61B 2090/378 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A vascular occlusion treatment system, comprising:
an ultrasound imaging system having an imaging control circuit communicatively coupled to each of an ultrasound imaging probe and a display screen, the ultrasound imaging system configured to generate an ultrasound image for display on the display screen from ultrasound imaging data collected from an ultrasound imaging space; and
an ultrasonic vibration system having an ultrasonic generator operatively coupled to an ultrasonic catheter, the ultrasonic catheter having a corewire with a distal tip, the ultrasonic generator having a generator control circuit configured to alternatingly switch between an ultrasonic work frequency and a tracking frequency, the generator control circuit being communicatively coupled to the imaging control circuit,
the generator control circuit configured to execute program instructions to send a notification to the imaging control circuit when the generator control circuit has switched from the ultrasonic work frequency to the tracking frequency;
the imaging control circuit configured to respond to the notification by executing program instructions to:
initiate a search for the tracking frequency in the ultrasound imaging space to locate the distal tip of the corewire of the ultrasonic catheter that is vibrating at the tracking frequency; and
indicate a location of the distal tip in the ultrasound image displayed on the display screen.