Patrick A. Kelly,Patrick E. Lutz,Robert G. Svitek,Jerry Stokes
申请号：
US16404317
公开号：
US20190255245A1
申请日:
2019.05.06
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A method of assisting a heart of a patient using a dual lumen cannula includes inserting the dual lumen cannula into the patient, positioning a first infusion tube of the dual lumen cannula in a pulmonary artery to pump blood thereto, positioning a second drainage tube of the dual lumen cannula in a right ventricle to drain blood therefrom. The dual lumen cannula has a plurality of infusion apertures extending through a sidewall of the first infusion tube at a distal end of the first infusion tube； and a plurality of drainage apertures extending through a sidewall of the second drainage tube at a distal end of the second drainage tube. The distal end of the first infusion tube has a tapered portion extending distally beyond a distal-most infusion aperture of the plurality of infusion apertures and to a terminal surface at a tip of the first infusion tube.
