US 11,883,610 B2
Aspiration systems and methods, and expanding-mouth catheters
Eric Mintz, Newport Beach, CA (US); Ujwal Jalgaonkar, Irvine, CA (US); Emma Hurst, Torrance, CA (US); Kevin V. Nguyen, Westminster, CA (US); and Edwin Wang, Tustin, CA (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Aug. 31, 2020, as Appl. No. 17/008,147.
Prior Publication US 2022/0062588 A1, Mar. 3, 2022
Int. Cl. A61M 25/01 (2006.01); A61M 25/00 (2006.01)
CPC A61M 25/0144 (2013.01) [A61M 25/0074 (2013.01); A61M 25/0136 (2013.01); A61M 25/0158 (2013.01); A61M 2025/0024 (2013.01); A61M 2210/0625 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A catheter comprising:
an elongated body defining an inner lumen and a central longitudinal axis, the elongated body comprising an expandable member at a distal portion of the elongated body, the expandable member comprising:
a slidable leg configured to move proximally and distally along the central longitudinal axis;
a first fixed leg;
a second fixed leg, wherein the slidable leg is disposed between the first and second fixed legs;
a first strut having a first end hingedly connected to the slidable leg and a second end hingedly connected to the first fixed leg; and
a second strut having a third end hingedly connected to the slidable leg and a fourth end hingedly connected to the second fixed leg, wherein a proximal motion of the slidable leg relative to the first and second fixed legs causes the first and second fixed legs to expand radially outward,
wherein the slidable leg, the first fixed leg, and the second fixed leg are disposed around a circumference of the expandable member.