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Coles L, Ventrella D, Carnicer-Lombarte A, Elmi A, Troughton JG, Mariello M, El Hadwe S, Woodington BJ, Bacci ML, Malliaras GG, Barone DG, Proctor CM. Origami-inspired soft fluidic actuation for minimally invasive large-area electrocorticography. Nat Commun 2024; 15:6290. [PMID: 39060241 PMCID: PMC11282215 DOI: 10.1038/s41467-024-50597-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Electrocorticography is an established neural interfacing technique wherein an array of electrodes enables large-area recording from the cortical surface. Electrocorticography is commonly used for seizure mapping however the implantation of large-area electrocorticography arrays is a highly invasive procedure, requiring a craniotomy larger than the implant area to place the device. In this work, flexible thin-film electrode arrays are combined with concepts from soft robotics, to realize a large-area electrocorticography device that can change shape via integrated fluidic actuators. We show that the 32-electrode device can be packaged using origami-inspired folding into a compressed state and implanted through a small burr-hole craniotomy, then expanded on the surface of the brain for large-area cortical coverage. The implantation, expansion, and recording functionality of the device is confirmed in-vitro and in porcine in-vivo models. The integration of shape actuation into neural implants provides a clinically viable pathway to realize large-area neural interfaces via minimally invasive surgical techniques.
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Affiliation(s)
- Lawrence Coles
- Department of Engineering, University of Cambridge, Cambridge, UK
- Institute of Biomedical Engineering, Engineering Science Department, University of Oxford, Oxford, UK
| | - Domenico Ventrella
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Ozzano dell'Emilia, Bologna, Italy
| | | | - Alberto Elmi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Ozzano dell'Emilia, Bologna, Italy
| | - Joe G Troughton
- Department of Engineering, University of Cambridge, Cambridge, UK
- Institute of Biomedical Engineering, Engineering Science Department, University of Oxford, Oxford, UK
| | - Massimo Mariello
- Institute of Biomedical Engineering, Engineering Science Department, University of Oxford, Oxford, UK
| | - Salim El Hadwe
- Department of Engineering, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Ben J Woodington
- Department of Engineering, University of Cambridge, Cambridge, UK
| | - Maria L Bacci
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Ozzano dell'Emilia, Bologna, Italy
| | | | - Damiano G Barone
- Department of Engineering, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Christopher M Proctor
- Department of Engineering, University of Cambridge, Cambridge, UK.
- Institute of Biomedical Engineering, Engineering Science Department, University of Oxford, Oxford, UK.
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2
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Rosalia L, Wang SX, Ozturk C, Huang W, Bonnemain J, Beatty R, Duffy GP, Nguyen CT, Roche ET. Soft robotic platform for progressive and reversible aortic constriction in a small-animal model. Sci Robot 2024; 9:eadj9769. [PMID: 38865476 DOI: 10.1126/scirobotics.adj9769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 05/17/2024] [Indexed: 06/14/2024]
Abstract
Our understanding of cardiac remodeling processes due to left ventricular pressure overload derives largely from animal models of aortic banding. However, these studies fail to enable control over both disease progression and reversal, hindering their clinical relevance. Here, we describe a method for progressive and reversible aortic banding based on an implantable expandable actuator that can be finely tuned to modulate aortic banding and debanding in a rat model. Through catheterization, imaging, and histologic studies, we demonstrate that our platform can recapitulate the hemodynamic and structural changes associated with pressure overload in a controllable manner. We leveraged soft robotics to enable noninvasive aortic debanding, demonstrating that these changes can be partly reversed because of cessation of the biomechanical stimulus. By recapitulating longitudinal disease progression and reversibility, this animal model could elucidate fundamental mechanisms of cardiac remodeling and optimize timing of intervention for pressure overload.
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Affiliation(s)
- Luca Rosalia
- Health Sciences and Technology Program, Harvard University - Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Sophie X Wang
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Caglar Ozturk
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Wei Huang
- Koch Institute For Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Jean Bonnemain
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Adult Intensive Care Medicine, Lausanne University Hospital, Lausanne 1011, Switzerland
| | - Rachel Beatty
- Anatomy and Regenerative Medicine Institute, College of Medicine Nursing and Health Sciences, University of Galway, Galway H91 W2TY, Ireland
| | - Garry P Duffy
- Anatomy and Regenerative Medicine Institute, College of Medicine Nursing and Health Sciences, University of Galway, Galway H91 W2TY, Ireland
| | - Christopher T Nguyen
- Department of Cardiovascular Medicine, Radiology, and Biomedical Engineering, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Ellen T Roche
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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3
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Zhang L, Xing S, Yin H, Weisbecker H, Tran HT, Guo Z, Han T, Wang Y, Liu Y, Wu Y, Xie W, Huang C, Luo W, Demaesschalck M, McKinney C, Hankley S, Huang A, Brusseau B, Messenger J, Zou Y, Bai W. Skin-inspired, sensory robots for electronic implants. Nat Commun 2024; 15:4777. [PMID: 38839748 PMCID: PMC11153219 DOI: 10.1038/s41467-024-48903-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/15/2024] [Indexed: 06/07/2024] Open
Abstract
Drawing inspiration from cohesive integration of skeletal muscles and sensory skins in vertebrate animals, we present a design strategy of soft robots, primarily consisting of an electronic skin (e-skin) and an artificial muscle. These robots integrate multifunctional sensing and on-demand actuation into a biocompatible platform using an in-situ solution-based method. They feature biomimetic designs that enable adaptive motions and stress-free contact with tissues, supported by a battery-free wireless module for untethered operation. Demonstrations range from a robotic cuff for detecting blood pressure, to a robotic gripper for tracking bladder volume, an ingestible robot for pH sensing and on-site drug delivery, and a robotic patch for quantifying cardiac function and delivering electrotherapy, highlighting the application versatilities and potentials of the bio-inspired soft robots. Our designs establish a universal strategy with a broad range of sensing and responsive materials, to form integrated soft robots for medical technology and beyond.
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Affiliation(s)
- Lin Zhang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Sicheng Xing
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Haifeng Yin
- MCAllister Heart Institute Core, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Hannah Weisbecker
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Hiep Thanh Tran
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Ziheng Guo
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Tianhong Han
- Joint Department of Biomedical Engineering, North Carolina State University, Raleigh, NC, 27606, USA
| | - Yihang Wang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Yihan Liu
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Yizhang Wu
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Wanrong Xie
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Chuqi Huang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Wei Luo
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, 27514, USA
| | | | - Collin McKinney
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Samuel Hankley
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Amber Huang
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Brynn Brusseau
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Jett Messenger
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Yici Zou
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27514, USA
| | - Wubin Bai
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27514, USA.
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4
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Bai W, Zhang L, Xing S, Yin H, Weisbecker H, Tran HT, Guo Z, Han T, Wang Y, Liu Y, Wu Y, Xie W, Huang C, Luo W, Demaesschalck M, McKinney C, Hankley S, Huang A, Brusseau B, Messenger J, Zou Y. Skin-inspired, sensory robots for electronic implants. RESEARCH SQUARE 2023:rs.3.rs-3665801. [PMID: 38196588 PMCID: PMC10775366 DOI: 10.21203/rs.3.rs-3665801/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Living organisms with motor and sensor units integrated seamlessly demonstrate effective adaptation to dynamically changing environments. Drawing inspiration from cohesive integration of skeletal muscles and sensory skins in these organisms, we present a design strategy of soft robots, primarily consisting of an electronic skin (e-skin) and an artificial muscle, that naturally couples multifunctional sensing and on-demand actuation in a biocompatible platform. We introduce an in situ solution-based method to create an e-skin layer with diverse sensing materials (e.g., silver nanowires, reduced graphene oxide, MXene, and conductive polymers) incorporated within a polymer matrix (e.g., polyimide), imitating complex skin receptors to perceive various stimuli. Biomimicry designs (e.g., starfish and chiral seedpods) of the robots enable various motions (e.g., bending, expanding, and twisting) on demand and realize good fixation and stress-free contact with tissues. Furthermore, integration of a battery-free wireless module into these robots enables operation and communication without tethering, thus enhancing the safety and biocompatibility as minimally invasive implants. Demonstrations range from a robotic cuff encircling a blood vessel for detecting blood pressure, to a robotic gripper holding onto a bladder for tracking bladder volume, an ingestible robot residing inside stomach for pH sensing and on-site drug delivery, and a robotic patch wrapping onto a beating heart for quantifying cardiac contractility, temperature and applying cardiac pacing, highlighting the application versatilities and potentials of the nature-inspired soft robots. Our designs establish a universal strategy with a broad range of sensing and responsive materials, to form integrated soft robots for medical technology and beyond.
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Affiliation(s)
- Wubin Bai
- University of North Carolina, Chapel Hill
| | | | | | | | | | | | | | | | | | | | - Yizhang Wu
- Department of Applied Physical Sciences, The University of North Carolina at Chapel Hill
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Mehmood K, Lazoglu I, Küçükaksu DS. Acausal Modelling of Advanced-Stage Heart Failure and the Istanbul Heart Ventricular Assist Device Support with Patient Data. Cardiovasc Eng Technol 2023; 14:726-741. [PMID: 37723332 DOI: 10.1007/s13239-023-00683-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/05/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND In object-oriented or acausal modelling, components of the model can be connected topologically, following the inherent structure of the physical system, and system equations can be formulated automatically. This technique allows individuals without a mathematics background to develop knowledge-based models and facilitates collaboration in multidisciplinary fields like biomedical engineering. This study conducts a preclinical evaluation of a ventricular assist device (VAD) in assisting advanced-stage heart failure patients in an acausal modelling environment. METHODS A comprehensive object-oriented model of the cardiovascular system with a VAD is developed in MATLAB/SIMSCAPE, and its hemodynamic behaviour is studied. An analytically derived pump model is calibrated for the experimental prototype of the Istanbul Heart VAD. Hemodynamics are produced under healthy, diseased, and assisted conditions. The study features a comprehensive collection of advanced-stage heart failure patients' data from the literature to identify parameters for disease modelling and to validate the resulting hemodynamics. RESULTS Regurgitation, suction, and optimal speeds are identified, and trends in different hemodynamic parameters are observed for the simulated pathophysiological conditions. Using pertinent parameters in disease modelling allows for more accurate results compared to the traditional approach of arbitrary reduction in left ventricular contractility to model dilated cardiomyopathy. CONCLUSION The current research provides a comprehensive and validated framework for the preclinical evaluation of cardiac assist devices. Due to its object-oriented nature, the featured model is readily modifiable for other cardiovascular diseases for studying the effect of pump operating conditions on hemodynamics and vice versa in silico and hybrid mock circulatory loops. The work also provides a potential teaching tool for understanding the pathophysiology of heart failure, diagnosis rationale, and degree of assist requirements.
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Affiliation(s)
- Khunsha Mehmood
- Department of Mechanical Engineering, Koç University, 34450, Istanbul, Turkey
| | - Ismail Lazoglu
- Department of Mechanical Engineering, Koç University, 34450, Istanbul, Turkey.
| | - Deniz Süha Küçükaksu
- Cardiovascular Surgery Department, School of Medicine, Başkent University, 34662, Istanbul, Turkey
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6
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Xu S, Nunez CM, Souri M, Wood RJ. A compact DEA-based soft peristaltic pump for power and control of fluidic robots. Sci Robot 2023; 8:eadd4649. [PMID: 37343077 DOI: 10.1126/scirobotics.add4649] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/24/2023] [Indexed: 06/23/2023]
Abstract
Fluid-driven robotic systems typically use bulky and rigid power supplies, considerably limiting their mobility and flexibility. Although various forms of low-profile soft pumps have been demonstrated, they either are limited to specific working fluids or generate limited flow rates or pressures, making them ill-suited for widespread robotics applications. In this work, we introduce a class of centimeter-scale soft peristaltic pumps for power and control of fluidic robots. An array of high power density robust dielectric elastomer actuators (DEAs) (each weighing 1.7 grams) were adopted as soft motors, operated in a programmed pattern to produce pressure waves in a fluidic channel. We investigated and optimized the dynamic performance of the pump by analyzing the interaction between the DEAs and the fluidic channel with a fluid-structure interaction finite element model. Our soft pump achieved a maximum blocked pressure of 12.5 kilopascals and a run-out flow rate of 39 milliliters per minute with a response time of less than 0.1 second. The pump can generate bidirectional flow and adjustable pressure through control of drive parameters such as voltage and phase shift. Furthermore, the use of peristalsis makes the pump compatible with various liquids. To illustrate the versatility of the pump, we demonstrate mixing a cocktail, powering custom actuators for haptic devices, and performing closed-loop control of a soft fluidic actuator. This compact soft peristaltic pump opens up possibilities for future on-board power sources for fluid-driven robots in a variety of applications, including food handling, manufacturing, and biomedical therapeutics.
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Affiliation(s)
- Siyi Xu
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Cara M Nunez
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - Mohammad Souri
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Robert J Wood
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
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7
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Ji T, Gong W, Zhou J, Jing Y, Xing R, Zhu B, Li K, Hou C, Zhang Q, Li Y, Wang H. Scalable multi-dimensional topological deformation actuators for active object identification. MATERIALS HORIZONS 2023; 10:1726-1736. [PMID: 36891764 DOI: 10.1039/d2mh01567f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Rarely are bionic robots capable of rapid multi-dimensional deformation and object identification in the same way as animals and plants. This study proposes a topological deformation actuator for bionic robots based on pre-expanded polyethylene and large flake MXene, inspired by the octopus predation behavior. This unusual, large-area topological deformation actuator (easily reaching 800 cm2 but is not constrained to this size) prepared by large-scale blow molding and continuous scrape coating exhibits different distribution states of molecular chains at low and high temperatures, causing the actuator's deformation direction to change axially. With its multi-dimensional topological deformation and self-powered active object identification capabilities, the actuator can capture objects like an octopus. The contact electrification effect assists the actuator to identify the type and size of the target object during this multi-dimensional topological deformation that is controllable and designable. This work demonstrates the direct conversion of light energy into contact electrical signals, introducing a new route for the practicality and scaling of bionic robots.
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Affiliation(s)
- Tianyi Ji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
- Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, P. R. China.
| | - Wei Gong
- College of Light-Textile Engineering and Art, Anhui Agricultural University, Hefei 230036, P. R. China.
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
| | - Jie Zhou
- School of Electronic Information and Electrical Engineering, Chengdu University, Chengdu 610100, China
| | - Yangmin Jing
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
| | - Ruizhe Xing
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Bingjie Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
| | - Kerui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
| | - Chengyi Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
| | - Qinghong Zhang
- Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, P. R. China.
| | - Yaogang Li
- Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, P. R. China.
| | - Hongzhi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
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8
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Rosalia L, Ozturk C, Goswami D, Bonnemain J, Wang SX, Bonner B, Weaver JC, Puri R, Kapadia S, Nguyen CT, Roche ET. Soft robotic patient-specific hydrodynamic model of aortic stenosis and ventricular remodeling. Sci Robot 2023; 8:eade2184. [PMID: 36812335 PMCID: PMC10280738 DOI: 10.1126/scirobotics.ade2184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/30/2023] [Indexed: 02/24/2023]
Abstract
Aortic stenosis (AS) affects about 1.5 million people in the United States and is associated with a 5-year survival rate of 20% if untreated. In these patients, aortic valve replacement is performed to restore adequate hemodynamics and alleviate symptoms. The development of next-generation prosthetic aortic valves seeks to provide enhanced hemodynamic performance, durability, and long-term safety, emphasizing the need for high-fidelity testing platforms for these devices. We propose a soft robotic model that recapitulates patient-specific hemodynamics of AS and secondary ventricular remodeling which we validated against clinical data. The model leverages 3D-printed replicas of each patient's cardiac anatomy and patient-specific soft robotic sleeves to recreate the patients' hemodynamics. An aortic sleeve allows mimicry of AS lesions due to degenerative or congenital disease, whereas a left ventricular sleeve recapitulates loss of ventricular compliance and diastolic dysfunction (DD) associated with AS. Through a combination of echocardiographic and catheterization techniques, this system is shown to recreate clinical metrics of AS with greater controllability compared with methods based on image-guided aortic root reconstruction and parameters of cardiac function that rigid systems fail to mimic physiologically. Last, we leverage this model to evaluate the hemodynamic benefit of transcatheter aortic valves in a subset of patients with diverse anatomies, etiologies, and disease states. Through the development of a high-fidelity model of AS and DD, this work demonstrates the use of soft robotics to recreate cardiovascular disease, with potential applications in device development, procedural planning, and outcome prediction in industrial and clinical settings.
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Affiliation(s)
- Luca Rosalia
- Health Sciences and Technology Program, Harvard–Massachusetts Institute of Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Caglar Ozturk
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Debkalpa Goswami
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Health Sciences and Technology, ETH-Zürich, Zürich, Switzerland
- Institute of Robotics and Intelligent Systems, ETH-Zürich, Zürich, Switzerland
| | - Jean Bonnemain
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Adult Intensive Care Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Sophie X. Wang
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Benjamin Bonner
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - James C. Weaver
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Rishi Puri
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Samir Kapadia
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Christopher T. Nguyen
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
- Cardiovascular Innovation Research Center, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Ellen T. Roche
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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