Granted Patent
B2
US 12,491,356 · App. 17/098,162 · Granted Dec 9, 2025
Circulatory assist pump
Assignee:
Second Heart Assist, Inc.
View Patent ↗
Loading inventors, assignments & file history…
Abstract
A minimally invasive circulatory support platform that utilizes an aortic stent pump or pumps. The platform uses a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the patient. Further described is a wirelessly powered circulatory assist pump for providing chronic circulatory support for heart failure patients. The platform and system are relatively easy to place, have higher flow rates than existing systems, and provide improvements in the patient's renal function.
Claims (28)
1 . A system for a circulatory assist pump, the system comprising:
interconnected wire-like elements configured to expand to an expanded state and, in the expanded state, define a cage including open areas sized to allow a highly open flow when placed within a subject's aorta, the interconnected wire-like elements comprising a material, that in the expanded state, causes the cage to expand to a circumference that applies a radial force to a wall of the subject's aorta sufficient to stabilize the cage against the wall while maintaining pulsatility of the subject's aorta, and
an impeller encaged by the cage, the impeller comprising blades, the blades comprising: a frame including a shape memory alloy, and sheets of electroactive material, the shape memory alloy frame configured to cause the blades to selectively change shape between a stowed shape and a deployed shape and the sheets of electroactive material configured to bend and alter the blades from the deployed shape to a modified shape in response to an applied electrical field.
2 . The system of claim 1 , wherein the blades of the impeller are further configured to change shape in response to an applied temperature.
3 . The system of claim 2 , wherein the sheets of electroactive material comprise an electroactive polymer.
4 . The system of claim 2 , wherein the sheets of electroactive material comprise poly-paraphenylene terephthalamide.
5 . The system of claim 1 , wherein the blades are configured to return to the stowed shape on demand to facilitate percutaneous removal of the system.
6 . The system of claim 1 , further comprising:
a computational fluid dynamics simulation configured to analyze available patient data and device data and determine the modified shape at a given time.
7 . The system of claim 1 , wherein the blades are configured to return to the stowed shape on demand to facilitate percutaneous removal of the system.
8 . The system of claim 1 , wherein the bend of the sheets of electroactive material modify at least one characteristic of the blades chosen from among a pitch of the blades, a length of the blades, and a curvature of the blades.
9 . A system for a circulatory assist pump, the system comprising:
interconnected wire-like elements configured to expand to an expanded state and, in the expanded state, define a cage including open areas sized to allow a highly open flow when placed within a subject's aorta, the interconnected wire-like elements comprising a material, that in the expanded state, causes the cage to expand to a circumference that applies a radial force to a wall of the subject's aorta sufficient to stabilize the cage against the wall while maintaining pulsatility of the subject's aorta, and
a plurality of impellers arranged in series, each impeller encaged by the cage, and each impeller comprising blades, the blades comprising: a frame including a shape memory alloy, and sheets of electroactive material, the shape memory alloy frame configured to cause the blades to selectively change shape between a stowed shape and a deployed shape and the sheets of electroactive material configured to bend and alter the blades from the deployed shape to a modified shape in response to an applied electrical field.
10 . The system of claim 9 , wherein the blades of each impeller are configured to return to the stowed shape on demand to facilitate percutaneous removal of the system.
11 . The system of claim 9 , wherein the sheets of electroactive material comprise an electroactive polymer.
12 . The system of claim 9 , wherein the sheets of electroactive material comprise poly-paraphenylene terephthalamide.
13 . The system of claim 9 , further comprising:
a computational fluid dynamics simulation configured to analyze available subject data and device data and determine the modified shape at a given time.
14 . The system of claim 9 , wherein the arm-like blades are configured to return to a stowed shape on demand to facilitate percutaneous removal of the system.
15 . A system for a circulatory assist pump configured for placement in a subject's aorta, the system comprising:
interconnected wire-like elements configured to expand to an expanded state and, in the expanded state, define a cage including open areas sized to allow a highly open flow when placed within the subject's aorta, the interconnected wire-like elements comprising a material, that in the expanded state, causes the cage to expand to a circumference that applies a radial force to a wall of the subject's aorta sufficient to stabilize the cage against the wall while maintaining pulsatility of the subject's aorta, and
an impeller encaged by the cage,
wherein the impeller comprises arm-like blades that, during operation, rotate to draw blood down a subject's aorta from the subject's heart,
wherein the arm-like blades, in a deployed state, are configured to selectively change shape in order to improve blood flow of the subject, minimize turbulence, minimize thrombosis risk, and/or minimize hemolysis of the subject's blood,
wherein the arm-like blades of the impeller comprise; a frame including a temperature sensitive shape memory alloy; and sheets of electroactive material, the temperature sensitive shape memory alloy configured to cause the arm-like blades to change, in the deployed state, from a first shape to a second shape in response to an applied change in temperature and the sheets of electroactive material configured to bend and alter the blades from the second shape to a modified shape in response to an applied electrical field.
16 . The system of claim 15 , wherein the arm-like blades are configured to return to a stowed shape on demand by flushing temporarily with a cold solution to facilitate percutaneous removal of the system.
17 . The system of claim 15 , wherein the temperature sensitive shape memory alloy comprises nitinol.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Mar 11, 2021
From: LEONHARDT, HOWARD J.
To: SECOND HEART ASSIST, INC.
Reel/Frame 055567/0288 →
Continuity (5)
Continuation In Part
16982908
Provisional Application
62694564
· Jul 6, 2018
Provisional Application
62682046
· Jun 7, 2018
Provisional Application
62645599
· Mar 20, 2018
References Cited (400)
US 3620212A
· Fannon et al.
· 1971
[cited by applicant]
US 3786806A
· Johnson et al.
· 1974
[cited by applicant]
US 3890977A
· Wilson
· 1975
[cited by applicant]
US 4283233A
· Goldstein et al.
· 1981
[cited by applicant]
US 4580568A
· Gianturco
· 1986
[cited by applicant]
US 4600405A
· Zibelin
· 1986
[cited by examiner]
US 4753221A
· Kensey et al.
· 1988
[cited by applicant]
US 4925443A
· Heilman et al.
· 1990
[cited by applicant]
US 5092878A
· Miyata
· 1992
[cited by applicant]
US 5354308A
· Simon et al.
· 1994
[cited by applicant]
US 5507303A
· Kuzma
· 1996
[cited by applicant]
US 5507662A
· Nyman
· 1996
[cited by applicant]
US 5715837A
· Chen
· 1998
[cited by applicant]
US 5733313A
· Barreras et al.
· 1998
[cited by applicant]
US 5749855A
· Reitan
· 1998
[cited by applicant]
US 5782907A
· Frantzen et al.
· 1998
[cited by applicant]
US 5895416A
· Barreras et al.
· 1999
[cited by applicant]
US 5957949A
· Leonhardt et al.
· 1999
[cited by applicant]
US 5964771A
· Beyar et al.
· 1999
[cited by applicant]
US 6166518A
· Echarri et al.
· 2000
[cited by applicant]
US 6185452B1
· Schulman et al.
· 2001
[cited by applicant]
US 6315721B2
· Schulman et al.
· 2001
[cited by applicant]
US 6390969B1
· Bolling et al.
· 2002
[cited by applicant]
US 6472991B1
· Schulman et al.
· 2002
[cited by applicant]
US 6572645B2
· Leonhardt
· 2003
[cited by applicant]
US 6690970B1
· Taheri et al.
· 2004
[cited by applicant]
US 6738672B2
· Schulman et al.
· 2004
[cited by applicant]
US 6821154B1
· Canfield et al.
· 2004
[cited by applicant]
US 6839596B2
· Nelson et al.
· 2005
[cited by applicant]
US 6889087B2
· Moore
· 2005
[cited by applicant]
US 6947782B2
· Schulman et al.
· 2005
[cited by applicant]
US 7005935B2
· Moore
· 2006
[cited by applicant]
US 7015769B2
· Schulman et al.
· 2006
[cited by applicant]
US 7022100B1
· Aboul-Hosn et al.
· 2006
[cited by applicant]
US 7024249B2
· Weisner et al.
· 2006
[cited by applicant]
US 7108711B2
· Vogel et al.
· 2006
[cited by applicant]
US 7114502B2
· Schulman et al.
· 2006
[cited by applicant]
US 7157150B2
· Jiang
· 2007
[cited by applicant]
US 7163385B2
· Gharib et al.
· 2007
[cited by applicant]
US 7177690B2
· Woods et al.
· 2007
[cited by applicant]
US 7225032B2
· Schmeling et al.
· 2007
[cited by applicant]
US 7228624B2
· Culp
· 2007
[cited by applicant]
US 7235050B2
· Schulman et al.
· 2007
[cited by applicant]
US 7239921B2
· Canfield et al.
· 2007
[cited by applicant]
US 7245972B2
· Davis
· 2007
[cited by applicant]
US 7286883B2
· Schulman et al.
· 2007
[cited by applicant]
US 7343204B2
· Schulman et al.
· 2008
[cited by applicant]
US 7379774B2
· Gord et al.
· 2008
[cited by applicant]
US 7437193B2
· Parramon et al.
· 2008
[cited by applicant]
US 7450998B2
· Zilberman et al.
· 2008
[cited by applicant]
US 7460911B2
· Cosendai et al.
· 2008
[cited by applicant]
US 7513257B2
· Schulman et al.
· 2009
[cited by applicant]
US 7542804B2
· Mandell
· 2009
[cited by applicant]
US 7563279B2
· Lasater
· 2009
[cited by applicant]
US 7599743B2
· Hassler, Jr. et al.
· 2009
[cited by applicant]
US 7670363B2
· Vogel et al.
· 2010
[cited by applicant]
US 7775444B2
· Derocco et al.
· 2010
[cited by applicant]
US 7805200B2
· Kast et al.
· 2010
[cited by applicant]
US 7841976B2
· McBride et al.
· 2010
[cited by applicant]
US 7857766B2
· Lasater et al.
· 2010
[cited by applicant]
US 7860476B1
· Karr et al.
· 2010
[cited by applicant]
US 7883325B2
· Kheradvar et al.
· 2011
[cited by applicant]
US 7945334B2
· Jimenez et al.
· 2011
[cited by applicant]
US 7970477B2
· Loeb et al.
· 2011
[cited by applicant]
US 7979140B2
· Schulman
· 2011
[cited by applicant]
US 7993259B2
· Kang et al.
· 2011
[cited by applicant]
US 7998190B2
· Gharib et al.
· 2011
[cited by applicant]
US 8000803B2
· Araujo
· 2011
[cited by applicant]
US RE42682E
· Barreras, Sr. et al.
· 2011
[cited by applicant]
US 8012079B2
· Delgado, III
· 2011
[cited by applicant]
US 8050297B2
· Delmain et al.
· 2011
[cited by applicant]
US 8092365B2
· Rinderknecht et al.
· 2012
[cited by applicant]
US 8099647B1
· Karr et al.
· 2012
[cited by applicant]
US 8197234B2
· Gharib et al.
· 2012
[cited by applicant]
US 8200335B2
· Donofrio et al.
· 2012
[cited by applicant]
US 8277404B2
· Einarsson
· 2012
[cited by applicant]
US 8361165B2
· Karr et al.
· 2013
[cited by applicant]
US 8395300B2
· Aabloo et al.
· 2013
[cited by applicant]
US 8447402B1
· Jiang et al.
· 2013
[cited by applicant]
US 8545255B2
· Litzler et al.
· 2013
[cited by applicant]
US 8555894B2
· Schulman et al.
· 2013
[cited by applicant]
US 8579789B1
· Zilbershlag
· 2013
[cited by applicant]
US 8579858B2
· Reitan et al.
· 2013
[cited by applicant]
US 8585571B2
· Bachman et al.
· 2013
[cited by applicant]
US 8617239B2
· Reitan
· 2013
[cited by applicant]
US 8727959B2
· Reitan et al.
· 2014
[cited by applicant]
US 8764621B2
· Badstibner et al.
· 2014
[cited by applicant]
US 8781589B1
· Jiang et al.
· 2014
[cited by applicant]
US 8849398B2
· Evans
· 2014
[cited by applicant]
US 8956275B2
· Bolyard et al.
· 2015
[cited by applicant]
US 9125655B2
· Gharib et al.
· 2015
[cited by applicant]
US 9155901B2
· Dearden et al.
· 2015
[cited by applicant]
US 9205273B2
· Dearden et al.
· 2015
[cited by applicant]
US 9239951B2
· Hoffberg et al.
· 2016
[cited by applicant]
US 9276348B1
· Vadlamudi et al.
· 2016
[cited by applicant]
US 9277366B2
· Busch
· 2016
[cited by applicant]
US 9308303B2
· Badstibner et al.
· 2016
[cited by applicant]
US 9308378B2
· Shelton et al.
· 2016
[cited by applicant]
US 9482255B2
· Changsrivong et al.
· 2016
[cited by applicant]
US 9570842B2
· Nordgren et al.
· 2017
[cited by applicant]
US 9572915B2
· Heuring et al.
· 2017
[cited by applicant]
US 9608537B1
· Lee
· 2017
[cited by applicant]
US 9616159B2
· Anderson et al.
· 2017
[cited by applicant]
US 9622677B1
· Stover et al.
· 2017
[cited by applicant]
US 9623220B2
· Perrin et al.
· 2017
[cited by applicant]
US 9642958B2
· Zilbershlag et al.
· 2017
[cited by applicant]
US 9656009B2
· Gharib et al.
· 2017
[cited by applicant]
US 9675807B2
· Schmidt
· 2017
[cited by applicant]
US 9724523B2
· Calderon et al.
· 2017
[cited by applicant]
US 9750428B2
· Matei et al.
· 2017
[cited by applicant]
US 9782600B2
· Mazanec
· 2017
[cited by applicant]
US 9789325B2
· Shelton et al.
· 2017
[cited by applicant]
US 9827419B2
· Boggs, II et al.
· 2017
[cited by applicant]
US 9837831B2
· Lee
· 2017
[cited by applicant]
US 9855376B2
· Bluvshtein et al.
· 2018
[cited by applicant]
US 9855436B2
· Dearden et al.
· 2018
[cited by applicant]
US 9876308B2
· Jones et al.
· 2018
[cited by applicant]
US D811588S
· Kaiser et al.
· 2018
[cited by applicant]
US 9889242B2
· Pfeffer et al.
· 2018
[cited by applicant]
US 9962085B2
· Griffith
· 2018
[cited by applicant]
US D826401S
· Epple
· 2018
[cited by applicant]
US D855175S
· Epple
· 2019
[cited by applicant]
US D967408S
· Tanaka et al.
· 2022
[cited by applicant]
US 20020044867A1
· Gharib et al.
· 2002
[cited by applicant]
US 20020081207A1
· Ross
· 2002
[cited by examiner]
US 20020087204A1
· Kung et al.
· 2002
[cited by applicant]
US 20030171642A1
· Schock et al.
· 2003
[cited by applicant]
US 20050228467A1
· Jiang
· 2005
[cited by applicant]
US 20060202805A1
· Schulman et al.
· 2006
[cited by applicant]
US 20070208392A1
· Kuschner et al.
· 2007
[cited by applicant]
US 20080132748A1
· Shifflette
· 2008
[cited by applicant]
US 20090248141A1
· Shandas et al.
· 2009
[cited by applicant]
US 20090259264A1
· Firth
· 2009
[cited by applicant]
US 20100241213A1
· Gharib et al.
· 2010
[cited by applicant]
US 20130138205A1
· Kushwaha et al.
· 2013
[cited by applicant]
US 20130147283A1
· Kawano et al.
· 2013
[cited by applicant]
US 20150028805A1
· Dearden et al.
· 2015
[cited by applicant]
US 20160015879A1
· Gharib et al.
· 2016
[cited by applicant]
US 20160204544A1
· Liang et al.
· 2016
[cited by applicant]
US 20160303301A1
· Bluvshtein et al.
· 2016
[cited by applicant]
US 20170128014A1
· Hansen et al.
· 2017
[cited by applicant]
US 20170202513A1
· Schmidt et al.
· 2017
[cited by applicant]
US 20180326132A1
· Maimon et al.
· 2018
[cited by applicant]
US 20190125932A1
· Leonhardt et al.
· 2019
[cited by applicant]
US 20190216995A1
· Kapur et al.
· 2019
[cited by applicant]
US 20210121624A1
· Greenberg et al.
· 2021
[cited by applicant]
US 20210250065A1
· Kerselaers et al.
· 2021
[cited by applicant]
AU 2001275476A1
· 2001
[cited by applicant]
AU 2014296320B2
· 2015
[cited by applicant]
BR 102012024070B1
· 2021
[cited by applicant]
EP 1996252B1
· 2008
[cited by applicant]
EP 3351209A1
· 2018
[cited by applicant]
EP 2891239B1
· 2019
[cited by applicant]
EP 3508230A1
· 2019
[cited by applicant]
EP 2962720B1
· 2020
[cited by applicant]
EP 3666805A1
· 2020
[cited by applicant]
EP 3711784A1
· 2020
[cited by applicant]
EP 3821939A1
· 2021
[cited by applicant]
EP 3006072B1
· 2021
[cited by applicant]
IN 202117054744A
· 2022
[cited by applicant]
JP 2017035323A
· 2017
[cited by applicant]
WO 1990010471A1
· 1990
[cited by applicant]
WO 9405347A1
· 1994
[cited by applicant]
WO 0062838A3
· 2000
[cited by applicant]
WO 0197908A2
· 2001
[cited by applicant]
WO 2002103651A1
· 2002
[cited by applicant]
WO 2003103745A2
· 2003
[cited by applicant]
WO 2006062709A3
· 2006
[cited by applicant]
WO 2006062710A1
· 2006
[cited by applicant]
WO 2009157840A1
· 2009
[cited by applicant]
WO 2010133567A1
· 2010
[cited by applicant]
WO 2011130558A1
· 2011
[cited by applicant]
WO 2011130559A1
· 2011
[cited by applicant]
WO 2013148697A1
· 2013
[cited by applicant]
WO 2017214118A1
· 2017
[cited by applicant]
WO 2018045299A1
· 2018
[cited by applicant]
WO 2018164902A1
· 2018
[cited by applicant]
WO 2018234454A1
· 2018
[cited by applicant]
WO 2019137911A1
· 2019
[cited by applicant]
WO 2019140073A1
· 2019
[cited by applicant]
WO 2019183247A1
· 2019
[cited by applicant]
WO 2018246301A1
· 2019
[cited by applicant]
WO 2019246301A1
· 2019
[cited by applicant]
WO 2019246305A1
· 2019
[cited by applicant]
WO 2020018742A1
· 2020
[cited by applicant]
WO 2020061143A9
· 2020
[cited by applicant]
WO 2020097428A1
· 2020
[cited by applicant]
WO 2020123333A1
· 2020
[cited by applicant]
WO 2020132390A1
· 2020
[cited by applicant]
WO 2020132554A3
· 2020
[cited by applicant]
WO 2020150346A1
· 2020
[cited by applicant]
WO 2020159921A1
· 2020
[cited by applicant]
WO 2020185855A1
· 2020
[cited by applicant]
WO 2020227521A1
· 2020
[cited by applicant]
WO 2021062565A2
· 2021
[cited by applicant]
WO 2021062566A1
· 2021
[cited by applicant]
WO 2021113389A1
· 2021
[cited by applicant]
WO 2021117021A1
· 2021
[cited by applicant]
WO 2021119413A1
· 2021
[cited by applicant]
WO 2021138673A1
· 2021
[cited by applicant]
WO 2021184004A1
· 2021
[cited by applicant]
WO 2021195135A1
· 2021
[cited by applicant]
WO 2021205346A2
· 2021
[cited by applicant]
An et al. “Novel electro-active shape memory polymers for soft actuators” 2020 The Japan Society of Applied Physics, Published May 13, 2020. vol. 59, No. 6.
[cited by applicant]
Bourque et al. “HeartMate III: Pump Design for a Centrifugal LVAD with a Magnetically Levitated Rotor” ASAIO Journal. 47(4):401-405 (Jul. 2001).
[cited by applicant]
Bowler “This Wireless Heart Pump Battery Could Save Thousands of Lives” Science Alert (May 26, 2017).
[cited by applicant]
Budris “Pump Performance Curve Shapes and How to Modify Them” (Jan. 2011) https://www.waterworld.com/technologies/pumps/article/16192402/pump-performance-curve-shapes-and-how-to-modify-them.
[cited by applicant]
Callington et al., “Computational fluid dynamic study of hemodynamic effects on aortic root blood flow of systematically varied left ventricular assist device graft anastomosis design,” J. Thorac Cardiovasc Surg., 150(3…
[cited by applicant]
Chopski et al. “Mechanical Circulatory Support of the Right Ventricle for Adult and Pediatric Patients With Heart Failure” ASAIO Journal. 65(2):106-116 (Feb. 2019).
[cited by applicant]
Curtas et al. “Computational Fluid Dynamics Modeling of Impeller Designs for the HeartQuest Left Ventricular Assist Device” ASAIO Journal. 48(5):552-561, (Sep.-Oct. 2002).
[cited by applicant]
Doersch “Temporary Left Ventricular Assist Device Through an Axillary Access is a Promising Approach to Improve Outcomes in Refractory Cardiogenic Shock Patients,” ASAIO J., 61(3):253-258 (May-Jun. 2015).
[cited by applicant]
Du et al. “Electroactive shape memory polymer based on optimized multi-walled carbon nanotubes/polyvinyl alcohol nanocomposites” Composites Part B: Engineering, vol. 68, pp. 170-175 (Jan. 2015).
[cited by applicant]
Esposito et al., “Acute mechanical circulatory support for cardiogenic shock: the ‘door to support’ time,” F1000Research, 6:737 (2017).
[cited by applicant]
Esposito et al., “Left Ventricular Unloading Before Reperfusion Promotes Functional Recovery After Acute Myocardial Infarction” Journal of the American College of Cardiology, 72(5):501-514 (Jul. 31, 2018).
[cited by applicant]
Gershgorn “Your Wireless Internet Could Power Your Future Devices” Popular Science, (https://www.popsci.com/your-wireless-internet-could-power-your-future-devices) (Jun. 3, 2015).
[cited by applicant]
Gohean et al. “Scaling the Low-Shear Pulsatile TORVAD for Pediatric Heart Failure” ASAIO Journal. 63(2): 198-206 (Mar./Apr. 2017).
[cited by applicant]
Gohean et al., “Preservation of Native Aortic Valve Flow and Full Hemodynamic Support With the TORVAD (Trademark) Using a Computational Model of the Cardiovascular System,” ASAIO J., 61(3):259-265 (May-Jun. 2015).
[cited by applicant]
Goldowsky, “Mini Hemoreliable Axial Flow LVAD With Magnetic Bearings: Part 2: Design Description” ASAIO Journal. 48(1):98-100 (Jan-Feb. 2002).
[cited by applicant]
Haddadi “Designing a More Effective Left Ventricular Assist Device Using CFD Simulation” (Jun. 2018) https://www.ansys.com/blog/designing-lvad-using-simulation.
[cited by applicant]
Ho et al., “Midfield Wireless Powering for Implantable Systems,” Proceedings of the IEEE, pp. 1-10 (2013 IEEE).
[cited by applicant]
International Search Report for International Application No. PCT/US19/23208, mailed Jul. 5, 2019, 5 pages.
[cited by applicant]
International Written Opinion for International Application No. PCT/US19/23208, mailed Jul. 5, 2019, 6 pages.
[cited by applicant]
Jagani et al. “Dual-Propeller Cavopulmonary Pump for Assisting Patients with Hypoplastic Right Ventricle” ASAIO Journal. 65(8):888-897 (Nov./Dec. 2019).
[cited by applicant]
Kapur et al., “Mechanically Unloading the Left Ventricle Before Coronary Reperfusion Reduces Left Ventricular Wall Stress and Myocardial Infarct Size,” Circulation., 128. 10.1161/CIRCULATIONAHA.112.000029 (Jun. 2013).
[cited by applicant]
Keeble et al., “Percutaneous haemodynamic and renal support in patients presenting with decompensated heart failure: A multi-centre efficacy study using the Reitan Catheter Pump (RCP)” Int. J. Card., 275:53-58 (2019).
[cited by applicant]
Knecht et al., “High Efficiency Transcutaneous Energy Transfer for Implantable Mechanical Heart Support Systems” IEEE Transactions on Power Electronics, 30(11) (Nov. 2015).
[cited by applicant]
Kormos et al., “Left Ventricular Assist Device Malfunctions: It's More Than Just The Pump,” CIRCULATIONAHA.117.027360, originally published (Jul. 3, 2017).
[cited by applicant]
Langston “Popular Science names 'Power Over Wi-Fi' one of the year's game-changing technologies,” UW News, (http://www.washington.edu/news/2015/11/18/popular-science-names-power-over-wi-fi-one-of-the-years-game-changing…
[cited by applicant]
Lee “Long-Term Mechanical Circulatory Support System Reliability Recommendation by the National Clinical Trial Initiative Subcommittee” ASAIO Journal. 55(6):534-542 (Nov.-Dec. 2009).
[cited by applicant]
Liu et al. “Review of electro-active shape-memory polymer composite” Composites Science and Technology, vol. 69, Issue 13, pp. 2064-2068 (Oct. 2009).
[cited by applicant]
Locke et al. “Testing of a Centrifugal Blood Pump With a High Efficiency Hybrid Magnetic Bearing” ASAIO Journal. 49(6):737-743 (Nov.-Dec. 2003).
[cited by applicant]
Macfelda et al., “Bioelectrical signals improve cardiac function and modify gene expression of extracellular matrix components” ESC Heart Failure 2017; 4: 291-300 (published online Jun. 30, 2017).
[cited by applicant]
Mitamura et al. “A Durable, Non Power Consumptive, Simple Seal for Rotary Blood Pumps” ASAIO Journal. 47(4):392-396 (Jul. 2001).
[cited by applicant]
Mountfort “Acute Cardiac Unloading and Recovery,” Interventional Cardiology Review 2017;12(2 Suppl 2):1-28.
[cited by applicant]
Pahlevan et al., “A Bio-Inspired Approach for the Reduction of Left Ventricular Workload,” PLOSone, (Jan. 24, 2014).
[cited by applicant]
Pahlevan et al., “A wave dynamics criterion for optimization of mammalian cardiovascular system,” J. Biomech., 47(7):1727-32 (May 2014).
[cited by applicant]
Pahlevan et al., “Aortic Wave Dynamics and Its Influence on Left Ventricular Workload, ” PLOSone, (Aug. 11, 2011).
[cited by applicant]
Palma et al., “Pulsatile stent graft: a new alternative in chronic ventricular assistance,” Revista Brasileira de Cirurgia Cardiovascular, 28(2):217 (Apr. 2013).
[cited by applicant]
Park et al. “Biologically Inspired, Open, Helicoid Impeller Design for Mechanical Circulatory Assist” ASAIO Journal. 66(8):899-908 (Aug. 2020).
[cited by applicant]
Patil et al. “Effect of Geometrical Changes of Impeller on Centrifugal Pump Performance” International Research Journal of Engineering and Technology (IRJET) vol. 02 Issue: 02 (May 2015).
[cited by applicant]
Queensland University of Technology “Wireless system to power heart pumps could save lives currently lost to infection,” (May 15, 2017, Queensland University of Technology), https://phys.org/news/2017-05-wireless-power-…
[cited by applicant]
Saku et al., “Total Mechanical Unloading Minimizes Metabolic Demand of Left Ventricle and Dramatically Reduces Infarct Size in Myocardial Infarction,” https://doi.org/10.1371/journal.pone.0152911 (2016).
[cited by applicant]
Schroeder “Balloon Catheters Over the Wire and Monorail,” 2013 Peripheral Vascular Interventions: An Illustrated Manual, Article (4 pages) DOI: 10.1055/b-0034-65946.
[cited by applicant]
Second Heart, Temporary and chronic circulatory assist devices, Int. J. Card., 2018; 275 (2019) 53-58.
[cited by applicant]
Song et al. “Design and Transient Computational Fluid Dynamics Study of a Continuous Axial Flow Ventricular Assist Device” ASAIO Journal. 50(3):215-224 (May-Jun. 2004).
[cited by applicant]
Tchantchaleishvili et al. “Clinical Implications of Physiologic Flow Adjustment in Continuous-Flow Left Ventricular Assist Devices” ASAIO Journal. 63(3):241-250 (May/Jun. 2017).
[cited by applicant]
Throckmorton et al. “Controlled Pitch-Adjustment of Impeller Blades for an Intravascular Blood Pump” Journal. 58(4):382-389 (Jul./Aug. 2012).
[cited by applicant]
Throckmorton et al. “Mechanical Cavopulmonary Assist for the Univentricular Fontan Circulation Using a Novel Folding Propeller Blood Pump” ASAIO Journal. 53(6):734-741 (Nov.-Dec. 2007).
[cited by applicant]
Throckmorton et al. “Uniquely Shaped Cardiovascular Stents Enhance the Pressure Generation of Intravascular Blood Pumps” The Journal of Thoracic and Cardiovascular Surgery, vol. 144, No. 3 (Sep. 2012).
[cited by applicant]
Watanabe et al., “Left Ventricular Unloading Using an Impella CP Improves Coronary Flow and Infarct Zone Perfusion in Ischemic Heart Failure,” J. Am. Heart Assoc., 7:e006462 (2018).
[cited by applicant]
WiFi Boosters, Repeaters and Extenders RepeaterStore, (https://www.repeaterstore.com/pages/wifi-booster-repeater-extender-differences) (accessed Feb. 26, 2018).
[cited by applicant]
Xie et al. “Strong Electroactive Biodegradable Shape Memory Polymer Networks Based on Star-Shaped Polylactide and Aniline Trimer for Bone Tissue Engineering” ACS Applied Materials & Interfaces (Apr. 2015) 7 (12), 6772-6…
[cited by applicant]
Xu et al. “Electro and Light-Active Actuators Based on Reversible Shape-Memory Polymer Composites with Segregated Conductive Networks” ACS Applied Materials & Interfaces (Jul. 2019) 11 (33), 30332-30340.
[cited by applicant]
Abate “Stanford engineer invents safe way to transfer energy to medical chips in the body” Stanford University Engineering Magazine Article, accessed Aug. 15, 2022 at https://protect-us.mimecast.com/s/j1E3C9rp2PT1AgQC1i…
[cited by applicant]
Choi “Wireless Power Transfer Will Energize Our Implants” Popular Mechanics Article, last accessed Aug. 15, 2022, https://www.popularmechanics.com/science/health/a10553/wireless-power-transfer-will-energize-our-implants…
[cited by applicant]
Khan et al. “Wireless Power Transfer Techniques for Implantable Medical Devices: A Review” Sensors (Jun. 2020) , 20, 3487; doi: 10.3390/s20123487 www.mdpi.com/journal/sensors.
[cited by applicant]
Simich “World-first wireless electricity supply headed for consumers” accessed Aug. 15, 2022 from https://www.eit.edu.au/world-first-wireless-electricity-supply-headed-for-consumers/.
[cited by applicant]
Stanford University Poster slides “Midfield Powering for Implantable Systems” Stanford Integrated Biomedical Systems, 9 pages.
[cited by applicant]
Skori Webste “Interesting Connections” 20 pages with English translation, accessed Jan. 11, 2022 http://skory.gylcomp.hu/kapcs/.
[cited by applicant]
Bartoli et al. “The Future of Adult Cardiac Assist Devices: Novel Systems and Mechanical Circulatory Support Strategies” Cardiol Clin. Nov. 2011 ; 29(4): 559-582. doi:10.1016/j.ccl.2011.08.013.
[cited by applicant]
Courboulin et al. “Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets” Journal of Visualized Experiments JoVE ,99 e52571. (May 2015) 9 pages, doi:10.3791/52571.
[cited by applicant]
Feldman et al. “Transcatheter Interatrial Shunt Device for the Treatment of Heart Failure With Preserved Ejection Fraction (Reduce LAP-HF I [Reduce Elevated Left Atrial Pressure in Patients With Heart Failure])” Circula…
[cited by applicant]
Hemodynamic Talk—New Mechanical Circulatory Support for High Risk PCI, Slide Show Presentation, accessed Nov. 5, 2021 https://slidetodoc.com/hemodynamic-talk-new-mechanical-circulatory-support-for-high/.
[cited by applicant]
Henaine et al. “Effects of lack of pulsatility on pulmonary endothelial function in the Fontan circulation” The Journal of Thoracic and Cardiovascular Surgery vol. 146, Issue 3, Sep. 2013, pp. 522-529.
[cited by applicant]
Metagadget Editors “New Wireless Heart Pump Makes No Contact with Blood” https://www.medgadget.com/2016/06/new-wireless-heart-pump-makes-no-contact-blood.html (Jun. 27, 2016).
[cited by applicant]
Naeije (1991) Pulsatile Flow Pulmonary Hemodynamics. In: Vincent J.L. (eds) Update 1991. Update in Intensive Care and Emergency Medicine, vol. 14. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84423-2_…
[cited by applicant]
Reuben “Compliance of the Human Pulmonary Arterial System in Disease” Circulation Research, vol. XXIX, pp. 40-50 (Jul. 1971).
[cited by applicant]
Rosset et al. “Mechanical properties of electroactive polymer microactuators with ion-implanted electrodes” Proc. of SPIE vol. 6524 652410-11 (Apr. 2007).
[cited by applicant]
Thenappan et al. “The Critical Role of Pulmonary Arterial Compliance in Pulmonary Hypertension.” Annals of the American Thoracic Society, vol. 13, No. 2 (Feb. 2016) pp. 276-284. doi: 10.1513/AnnalsATS.201509-599FR.
[cited by applicant]
UCLA (University of California, Los Angeles) Health Sciences. “Lung transplant recipient defies all odds: New approach to oxygenation helps patient live long enough for surgery.” ScienceDaily. ScienceDaily, Jul. 6, 2012…
[cited by applicant]
Vora et al. “First-in-human experience with Aortix intraaortic pump” Catheterization and Cardiovascular Interventions vol. 93, Issue 3 p. 428-433 (Oct. 11, 2018).
[cited by applicant]
Chakroborty “Controllable Pitch Propeller (CPP) Vs Fixed Pitch Propeller (FPP)” Naval Architecture (Last updated Jun. 14, 2021) Accessed Feb. 24, 2022 https://www.marineinsight.com/naval-architecture/controllable-pitch-…
[cited by applicant]
Wikipedia “Variable-pitch propeller (aeronautics)” Accessed Feb. 24, 2022 https://en.wikipedia.org/wiki/Variable-pitch_propeller_(aeronautics).
[cited by applicant]
Wikipedia “Variable-pitch propeller (marine)” Accessed Feb. 24, 2022 https://en.wikipedia.org/wiki/Variable-pitch_propeller_(marine).
[cited by applicant]
Baric, Why pulsatility still matters: a review of current knowledge Croatian Med. J. Volume 55(6), Dec. 2014, pp. 609-620.
[cited by applicant]
Benjamin et al. “Heart Disease and Stroke Statistics—2019 Update, A Report from the American Heart Association” Circulation, Mar. 2019;139:e56-e528.
[cited by applicant]
Idata Research “Over 965,000 Angioplasties (PCIs) are Performed Each Year in the United States” Jul. 10, 2020.
[cited by applicant]
Japanese Notice of Reasons for Refusal for Japanese Application No. 2021-500488, dated Nov. 22, 2021, 6 pages with English translation.
[cited by applicant]
Roger et al. “Heart Disease and Stroke Statistics—2011 Update: A Report From the American Heart Association” Circulation. Feb. 1, 2011; 123(4): e18-e209. doi: 10.1161/CIR.0b013e3182009701.
[cited by applicant]
Ronco et al. “ Cardiorenal Syndrome in Western Countries: Epidemiology, Diagnosis and Management Approaches” Kidney Diseases, 2:151-163, Sep. 10, 2016.
[cited by applicant]
Lee “A Capacitor-Based AC-DC Step-Up Converter for Biomedical Implants” Proc. of the IEEE 2011 Custom Integrated Circuits Conference, paper 8.6 (Sep. 2011).
[cited by applicant]