US 12,404,858 B2
Catheter blood pump heart assist device
Mark W. McBride, Bellefonte, PA (US); Thomas M. Mallison, State College, PA (US); Gregory P. Dillon, State College, PA (US); Robert L. Campbell, Port Matilda, PA (US); David A. Boger, Jenkintown, PA (US); Stephen A. Hambric, State College, PA (US); Robert F. Kunz, State College, PA (US); James P. Runt, State College, PA (US); Justin M. Walsh, Spring Mills, PA (US); and Boris Leschinsky, Mahwah, NJ (US)
Assigned to THE PENN STATE RESEARCH FOUNDATION, University Park, PA (US); and TC1 LLC, Pleasanton, CA (US)
Filed by THE PENN STATE RESEARCH FOUNDATION, University Park, PA (US); and TC1 LLC, Pleasanton, CA (US)
Filed on Oct. 19, 2022, as Appl. No. 18/047,876.
Application 18/047,876 is a continuation of application No. 17/084,896, filed on Oct. 30, 2020, granted, now 11,708,833.
Application 17/084,896 is a continuation of application No. 16/181,963, filed on Nov. 6, 2018, granted, now 10,864,309, issued on Dec. 15, 2020.
Application 16/181,963 is a continuation of application No. 15/633,189, filed on Jun. 26, 2017, granted, now 10,149,932, issued on Dec. 11, 2018.
Application 15/633,189 is a continuation of application No. 15/176,620, filed on Jun. 8, 2016, granted, now 9,717,833, issued on Aug. 1, 2017.
Application 15/176,620 is a continuation of application No. 13/618,071, filed on Sep. 14, 2012, granted, now 9,364,593, issued on Jun. 14, 2016.
Application 13/618,071 is a continuation of application No. 12/945,594, filed on Nov. 12, 2010, granted, now 9,364,592, issued on Jun. 14, 2016.
Application 12/945,594 is a continuation of application No. 11/728,051, filed on Mar. 23, 2007, granted, now 7,841,976, issued on Nov. 30, 2010.
Claims priority of provisional application 60/785,299, filed on Mar. 23, 2006.
Claims priority of provisional application 60/785,531, filed on Mar. 23, 2006.
Prior Publication US 2023/0125276 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/13 (2021.01); A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/237 (2021.01); A61M 60/414 (2021.01); A61M 60/808 (2021.01); A61M 60/824 (2021.01); F04D 3/00 (2006.01); F04D 3/02 (2006.01); F04D 29/18 (2006.01); F04D 29/24 (2006.01); F04D 29/52 (2006.01); F04D 29/54 (2006.01); A61M 60/829 (2021.01); B33Y 80/00 (2015.01)
CPC F04D 3/00 (2013.01) [A61M 60/13 (2021.01); A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/237 (2021.01); A61M 60/414 (2021.01); A61M 60/808 (2021.01); A61M 60/824 (2021.01); F04D 3/02 (2013.01); F04D 29/181 (2013.01); F04D 29/247 (2013.01); F04D 29/528 (2013.01); F04D 29/542 (2013.01); A61M 60/829 (2021.01); A61M 2205/0266 (2013.01); B33Y 80/00 (2014.12); F05B 2240/311 (2013.01); F05B 2280/5001 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A catheter blood pump comprising:
a cannula comprising:
a generally cylindrical, flexible, and expandable central portion having a proximal end, a distal end and a blood flow conduit extending between the proximal end and the distal end;
a flexible inlet portion at the distal end through which blood enters the blood flow conduit when the central portion is expanded, the flexible inlet portion provided with a plurality of spaced apart inlet struts configured to prevent an obstruction from entering the blood flow conduit; and
a flexible outlet portion at the proximal end through which blood leaves the blood flow conduit when the central portion is expanded, the flexible outlet portion provided with a plurality of spaced apart outlet struts operative to reduce a swirl velocity of blood leaving the blood flow conduit;
wherein the plurality of spaced apart inlet struts and the plurality of spaced apart outlet struts are fabricated from a collapsible shape memory material.