US 12,350,417 B2
Medical aspiration
Ujwal Jalgaonkar, Irvine, CA (US); Gaurav Girdhar, Ladera Ranch, CA (US); Kamel M. Chair, Hayward, CA (US); Peter Skujins, Menifee, CA (US); David P. Marchesiello, Laguna Niguel, CA (US); Emma Hurst, Torrance, CA (US); and Brad Jackson, San Diego, CA (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jan. 21, 2020, as Appl. No. 16/748,376.
Prior Publication US 2021/0220528 A1, Jul. 22, 2021
Int. Cl. A61M 1/00 (2006.01); A61B 17/22 (2006.01); A61B 5/021 (2006.01); A61B 5/024 (2006.01); A61B 5/0245 (2006.01); A61B 5/33 (2021.01); A61M 25/00 (2006.01)
CPC A61M 1/743 (2021.05) [A61B 17/22 (2013.01); A61B 5/021 (2013.01); A61B 5/02416 (2013.01); A61B 5/0245 (2013.01); A61B 5/33 (2021.01); A61B 2017/22079 (2013.01); A61B 2217/005 (2013.01); A61M 25/00 (2013.01); A61M 2230/04 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A medical aspiration system comprising:
a suction source configured to apply a suction force to a catheter to remove a thrombus from vasculature of a patient using the catheter; and
control circuitry configured to control the suction force applied by the suction source to the catheter based on a cardiac cycle of the patient to vary the suction force present at a distal opening of the catheter to facilitate aspiration of the thrombus from the vasculature.
 
12. A method comprising:
receiving, in a medical aspiration system, a signal indicative of a cardiac cycle of a patient; and
controlling a suction force applied by a suction source of the medical aspiration system to a catheter to remove a thrombus from vasculature of the patient based on the signal indicative of the cardiac cycle to vary the suction force present at a distal opening of the catheter to facilitate aspiration of the thrombus from the vasculature.
 
13. A medical aspiration system comprising:
a suction source configured to apply a suction force to a catheter to remove fluid from the catheter, wherein the catheter is configured to be navigated to a target tissue site in vasculature of a patient; and
control circuitry configured to receive a signal indicative of a cardiac cycle of the patient from sensing circuitry, determine a current part of the cardiac cycle of the patient based on the signal, and control the suction force applied by the suction source to the catheter based on the determined current part of the cardiac cycle to facilitate aspiration of a thrombus from the vasculature.