Related by context. All words. (Click for frequent words.) 64 Left Ventricular Assist 63 CircuLite 63 AMPLATZER 62 Ventricular Assist Device 62 CentriMag 62 Assist Device 61 Amplatzer 60 Ventricular Assist Device VAD 60 miniaturized implantable 60 hemodialysis catheters 60 Novacor 60 Heartmate II 60 Devices LVADs 60 Ventricular Assist Devices 59 HeartAssist 5 59 biventricular 59 implantable centrifugal rotary 59 Embolic Protection System 59 Abiomed AB# 59 System LVAS 59 extracorporeal 59 intra aortic balloon 58 device LVAD 58 MiniMed 58 oxygenator 58 vascular grafts 58 Intra Aortic Balloon 58 Thoratec HeartMate 58 VertiFlex ® 58 LVAS 58 HALO# [002] 58 SynchroMed 58 bearingless fully magnetically levitated 58 NAVISTAR R 58 Aquadex 58 functional mitral regurgitation 58 microcatheters 58 extracorporeal circulation 58 Heartmate 58 InSync Sentry 57 DuraHeart 57 Tracheostomy 57 Levacor TM 57 Insulin Pumps 57 Intravascular 57 HeartMate R 57 microcatheter 57 Balloon Catheters 57 cardiac resynchronisation therapy 57 ® VAD Ventricular 57 Microcatheter 57 Absorbable 57 Left Ventricular Assist Device 56 manufactures miniaturized implantable 56 Emboli Capture Guidewire 56 pump IABP 56 dialysis catheters 56 distal anastomosis 56 MicroMed Cardiovascular Inc. 56 Neurostimulation 56 HeartNet 56 biliary stent 56 Emphasys Medical 56 EXCOR 56 mechanical thrombectomy 56 Accuray CyberKnife 56 coronary sinus 56 Ventricle 56 cardioverter defibrillator 56 tachyarrhythmia 56 Microlife 56 Nebulizer 56 GORE TAG 56 Occluder 56 centrifugal pump 56 Insulin Pump 56 HeartMate XVE 56 Carotid 56 implantable cardiac 56 Spinal Implant 56 percutaneous aortic valve 56 Bovie Medical 56 AMPLATZER R 56 Microvascular 56 Biologics Delivery 56 Aquapheresis 55 PressureWire 55 Michael Onuscheck 55 AneuRx 55 disposable catheter 55 implantable pulse 55 vProtect TM Luminal Shield 55 catheters inserted 55 defibrillation leads 55 Vascular Imaging 55 ReVision Optics 55 Endurant 55 Transcutaneous 55 Medtronic implantable 55 Cobalt Chromium 55 Penumbra System 55 Abbokinase 55 anastomotic devices 55 Implantable cardioverter defibrillators 55 aneurysm sac 55 stent coating 55 neurostimulators 55 Tomography OCT 55 Pericardial 55 HVAD 55 CTO recanalization 55 NeuRx DPS RA 55 Novacor R 55 Cardiac Assist 55 Circulatory Support 55 Oximetry 55 Cardio Vascular 55 superficial femoral 55 Embolic Protection 55 Biventricular 55 percutaneous catheter 55 Electrosurgical 55 Merci Retrieval System 55 thrombus removal 55 CardioFocus 55 Balloon Catheter 55 Cardiac resynchronization therapy 55 AMPLATZER ® 55 Defibrillation 55 intravenous catheters 55 pulse oximeters 55 Stent Grafts 55 Stereotactic 55 surgical aortic valve 55 superDimension 55 TM Everolimus Eluting 55 Nerve Stimulation 55 Atrial Fibrillation AF 54 EverFlex 54 iCardiac Technologies 54 progressing cavity 54 stopwatch sized 54 FlowCardia Inc. 54 NexStent 54 bi ventricular 54 Bronchoscopy 54 interventional therapies 54 AngioSculpt 54 VentrAssist 54 Stent Graft 54 occluders 54 Viatronix 54 GORE TAG Device 54 Oculus Microcyn 54 Surgical Instruments 54 intracavitary 54 Européenne Mark 54 Nexiva 54 defibrillator CRT D 54 Thoratec HeartMate II 54 Thoratec Corp 54 endoprosthesis 54 rotary vane pumps 54 implantable infusion 54 nonfusion 54 Vascular Graft 54 Ozurdex 54 intra aortic 54 CGCI 54 AngioSculpt Scoring Balloon Catheter 54 balloon valvuloplasty 54 Rheos 54 HeartMate 54 SpideRX 54 Terumo Heart Inc. 54 TURBO Booster 54 organ perfusion 54 Cardiac Resynchronization Therapy 54 intravascular stent 54 FlowCardia 54 Volcano Therapeutics 54 intravascular 54 AccessClosure 54 Spineology 54 RyMed 54 transcatheter aortic valve 54 autologous bone marrow 54 Implantable Cardioverter Defibrillator ICD 54 HeartMate II LVAS 54 EndoTool 54 STARFlex R 54 ATS 3f Aortic Bioprosthesis 54 Impulse Dynamics 54 Calmare ® 54 Surgical Mesh 54 LifeWatch Technologies 54 Littmann ® 54 Endovascular System 54 Aortic Valve Replacement 54 Metricath 54 Levacor 54 clot retrieval 54 Acculis 54 electrosurgical generator 54 lithotripter 54 Orqis Medical 54 Endovascular Graft 54 Cannula 54 MGuard ™ 54 Spinal Disc 54 Perceval S 54 Coronary Imaging 54 DuraHeart TM 54 Novacor II 54 Syringe Pump 54 radiofrequency RF energy 54 balloon expandable stent 54 Novacor LVAS 54 IRadimed 54 cerebral aneurysms 54 pen injector 54 intracranial stent 54 implantable cardioverter 54 ultrasound transducer 54 syngo DynaCT 53 self expanding nitinol 53 Physio Control wholly owned 53 AngioScore 53 Fukuda Denshi 53 minimally invasive therapies 53 Guidewires 53 Tambocor 53 TriReme 53 spinal cord stimulation 53 Bioabsorbable 53 ventricular assist 53 Blood Glucose Monitor 53 ambulatory infusion 53 Cardima Surgical Ablation System 53 Spinal Cord Stimulation 53 sliding vane 53 OEM NIBP 53 piston pumps 53 Hemolung 53 nerve stimulator 53 Starion Instruments 53 biventricular pacemaker 53 OrSense 53 IVUS imaging 53 peripheral vasculature 53 Berlin Heart EXCOR 53 HeartWare HVAD 53 COR Analyzer 53 Medtronic MiniMed 53 invasive catheter 53 Advanced Circulatory Systems 53 cannula 53 Metricath Gemini 53 #.#T MRI 53 fibrin glue 53 StatLock 53 Endotracheal 53 catheters guidewires 53 Perfusion 53 MYO VAD 53 Vitagel 53 controlled analgesia 53 interventional neuroradiology 53 received CE Conformité 53 sensors miniature solenoid 53 Bacchus Vascular 53 percutaneous procedures 53 BladderScan R 53 USGI 53 DUROS 53 Mechanical Circulatory Support 53 transapical aortic valve 53 AV fistulas 53 AtriClip 53 PICCs 53 Urology Gynecology 53 pacemakers implantable cardioverter defibrillatorsHELB 53 intravascular temperature 53 mitral stenosis 53 FlowMedica 53 Facet Solutions 53 Alveolus 53 coronary artery bypass grafts 53 percutaneous coronary 53 Stereotaxis Niobe 53 TECNIS ® 53 aortic stent grafts 53 Boston Scientific Neuromodulation 53 idiopathic dilated cardiomyopathy 53 Onyx Liquid Embolic 53 ERBE GmbH 53 Alaris IV 53 THERMOCOOL R 53 BioControl 53 Novare Surgical Systems 53 diaphragm metering 53 Aneurysm Repair 53 craniomaxillofacial 53 intraluminal 53 scar tissue encapsulating pacing 53 transcatheter 53 Abiomed Impella 53 ACCULINK 53 phlebectomy 53 gauge vitrectomy 53 ePTFE graft 52 CT Scan machine 52 tamponade 52 medicated stent 52 ATS CryoMaze TM 52 EndoFLIP 52 Ischemia 52 Nerve Stimulator 52 synthetic grafts 52 Levitronix LLC 52 LionHeart 52 embolic coils 52 Cypher Stent 52 ResQPOD 52 CardioWest TAH t 52 drug eluting stent DES 52 endovascular therapies 52 Stryker Orthopaedics 52 NeuroFlo 52 VBAS 52 Thoracic Endoprosthesis 52 Embrella 52 pneumatic compression 52 syngo ® 52 Evicel 52 ExAblate R 52 hydrophilic coating 52 FinESS 52 pacemakers implanted 52 biventricular pacing 52 Minimally Invasive Procedure 52 StarClose 52 BIOSAFE 52 Valiant Thoracic Stent Graft 52 sutureless 52 HDR brachytherapy 52 implantable neuromodulation 52 Platinum Chromium 52 Ablation 52 lens IOL 52 Nitinol Stent 52 vascular stents 52 Insulin Delivery 52 Pulse Oximetry 52 Insulet Corporation 52 oximetry 52 Management CRDM 52 Piston Pump 52 CardioSEAL 52 Acute MI 52 Spectranetics laser 52 replacement PAVR 52 acutely decompensated heart 52 sinus venosus 52 ventricular assist devices 52 Ventilators 52 Minimally Invasive Surgical 52 Thrombectomy 52 bypass graft CABG surgery 52 renal arteries 52 CardioFit 52 Cordis Endovascular 52 Zonare 52 Spirus Medical 52 Coriolis mass 52 catheter threaded 52 PlasmaBlade 52 cobalt chromium stent 52 Eluting Coronary Stent System 52 AneuRx AAAdvantage 52 bioabsorbable polymer 52 cannulae 52 commercializing interventional 52 Edwards SAPIEN XT 52 USGI Medical 52 Electronic Brachytherapy System 52 Power Infuser 52 SonicOne 52 Talent Abdominal 52 Infusion Pump 52 cardiac septal repair 52 Aplio TM 52 SurgRx 52 AB# TM 52 transesophageal echocardiography 52 laser catheters 52 Vascular Closure System 52 embolic protection device 52 CoAxia 52 recombinant tissue plasminogen 52 CABG procedures 52 Ascendra 52 Sirolimus eluting 52 Bioprosthesis 52 counterpulsation 52 diathermy 52 Vycor 52 Impella ® 52 Dural Sealant 52 Sotradecol 52 Oxiplex 52 Navilyst Medical 52 implantable pacemaker 52 Niobe ® 52 HeartMate LVAS 52 BridgePoint Medical 52 INTELLITEMP ® 52 Cardiac Dimensions 52 bi ventricular pacing 52 cerebral oximeter 52 Robotic Catheter 52 valve implantation 52 Tissue Matrix 52 Levacor VAD 52 Microwave Ablation System 52 artery embolization 52 GuideLiner 52 oximeters 52 MAQUET Cardiovascular 52 EZ IO 52 ventricular reconstruction 52 AlphaCor 52 MicroMed Technology 52 ™ Everolimus Eluting 52 LVADs 52 dialysate 52 Cardiac Imaging 52 Cath Lab 52 surgical microscopes 52 Proxis 52 TriActiv R 52 transseptal 52 BioZ Dx 52 scleral buckling 52 SpineAlign 52 iScience 52 AngioJet 52 InterStim 52 LeMaitre Vascular 52 Smart Capnography 52 STARFlex 52 arterial grafts 52 myocardial contractility 52 Hemodynamics 52 central venous catheters 52 treat brain aneurysms 52 Aplio MX 52 fluidjet 52 tissue oxygenation 52 Vasomedical 52 Spine Wave 51 Fully Covered Stent 51 microdevice 51 sirolimus eluting 51 implantable cardiac devices 51 Implantable Cardioverter Defibrillator 51 KYPHON Balloon Kyphoplasty 51 extra corporeal membrane 51 external counterpulsation 51 PICSO ® 51 Echocardiogram 51 Swan Ganz catheter 51 LigaSure 51 Diastolic Heart Failure 51 radiofrequency RF 51 pulmonic 51 DeBakey VAD 51 Acuson S# 51 antibiotic impregnated 51 ablation catheters 51 MyoSure 51 LiDCO 51 oxygenators 51 implanted subcutaneously 51 infrapopliteal 51 Interference Screw 51 Palmaz stent 51 Asthmatx 51 iontophoresis 51 carboxyhemoglobin SpCO 51 BrainSUITE 51 resynchronization therapy 51 Powerlink ® 51 epicardial 51 ultrasound transducers 51 neurostimulation 51 carotid stent 51 hypervascular tumors 51 intraventricular 51 Dacron graft 51 LapBand 51 intracardiac 51 percutaneously 51 catheter ablation procedures 51 Biocor 51 bifurcation stent 51 NeuroMove 51 Transneuronix 51 PTA balloon catheter 51 NESS L# 51 IlluminOss 51 mitral repair 51 stents catheters 51 IABP 51 Biphasic 51 Membrana 51 KyphX 51 AERx R 51 ablation procedures 51 cardioplegic arrest 51 aesthetic body contouring 51 transapical 51 intra arterial 51 GORE TAG ® 51 Nuclear Pharm Assist 51 flexible endoscope 51 atrial septal defects 51 embolectomy 51 Tomography OCT systems 51 Vascular Surgeons 51 drug eluting coronary stent 51 Medication Delivery 51 Medingo 51 infrarenal 51 Enable valve 51 vascular graft 51 endoluminal stent graft 51 Pulse Oximeter 51 uroNIRS 51 pulse generator 51 Alair Bronchial Thermoplasty System 51 Peripheral Arterial 51 cannulated 51 implantable device 51 eSensor 51 neuromonitoring 51 NeuroTherm 51 pulsatile flow 51 CorMatrix ECM 51 pneumatically driven 51 Verderflex 51 CryoValve SG pulmonary 51 subconjunctival 51 holmium laser 51 Merci Retriever 51 stent DES 51 ThermoSuit System 51 Remon Medical 51 Infusion pumps 51 Drug Eluting Balloon 51 Dynamic Stabilization 51 Stabilimax 51 eyeonics 51 Crit Line 51 peristaltic pumps 51 DigiView 51 DFine 51 Guided Focused Ultrasound 51 Solenoid Valve 51 auto injectors 51 transdermal patches 51 OptiNose 51 Prism Pharmaceuticals 51 pericardial 51 cardiac perfusion 51 TAVI procedure 51 fiberscopes 51 PhotoThera 51 Broncus Technologies 51 Moyno ® 51 Image Guided Surgery 51 Cardiac Electrophysiology 51 femoral popliteal 51 LDR Spine 51 extracorporeal circulatory support 51 PleuraFlow 51 PEAK PlasmaBlade 51 HeartMate ® 51 Edwards SAPIEN 51 neurostimulation devices 51 cardioverter defibrillators 51 Gamma Cameras 51 noninvasive glucose 51 keratoplasty 51 REMINDER ORLive Presents 51 OmniSonics 51 MediPurpose 51 Pulmonetic Systems 51 Terumo Corporation 51 biodegradable implant 51 x ray angiography 51 m.pulse ® 51 Aortic Valve 51 Plicator 51 hemostatic agents 51 Toshiba Aquilion ONE 51 MGuard TM 51 computed tomographic angiography 51 Thoratec 51 clot busting medication 51 CleveMed 51 MEDRAD INC. 51 Lumen Biomedical 51 intravascular imaging 51 electrophysiology lab 51 ECG electrodes 51 biventricular pacemakers 51 MicroMed Cardiovascular 51 tenecteplase 51 Ectopia Cordis 51 Cardiac Output 51 endovascular procedures 51 ureteral stents 51 R Paclitaxel Eluting 51 cardiac resynchronization 51 catheter sheath introducer 51 controlled analgesia PCA 51 Xcorporeal 51 angioplasty catheters 51 CLiRpath 51 Pegasus Biologics 51 Cardiac catheterization 51 Embrella Cardiovascular 51 Vascular Access 51 Rheos System 51 Peter Wearden cardiothoracic 51 Plaque Excision System 51 tricuspid valve repair 51 irregular quivering 51 Radi Medical 51 FoxHollow Technologies Inc. 51 EnVe ventilator 51 Immunodiagnostic 51 paclitaxel eluting 51 Arrow LionHeart 51 interbody 51 defibrillator pacemaker 51 Image Guided Radiation Therapy 51 CorPath 51 bypass grafting 51 autologous cells 51 Eksigent 51 Neuronetics 51 PROMUS 51 Oximeter 51 WallFlex 51 TELIGEN 51 MULTI LINK 51 iScience Interventional 51 laparoscopic instrumentation 51 STARFlex ® 51 stent grafts 51 MiniArc Precise 51 PORT ACCESS 51 diaphragm pumps 51 Surgical Ablation 51 Vasotrac 51 HTWR 51 balloon catheter 51 Occlusion 51 Medtronic Spinal 51 suprarenal 51 NorthPoint Domain 51 thrombectomy 51 FilterWire EZ Embolic Protection 51 Angio Seal 50 Cypher Sirolimus 50 symptomatic intracranial 50 SpineSmith 50 endovascular interventions 50 vascular anatomy 50 electromagnetic motors 50 gastrointestinal motility disorders 50 Secca System 50 Hip Stem 50 NanoPass 50 Enhanced External Counterpulsation 50 Ventor Technologies 50 DuraHeart LVAS 50 stents pacemakers 50 Autogenous 50 Surgical Navigation 50 AcuFocus 50 Electronic Brachytherapy 50 Cardiac Catheterization Lab 50 PET Scanner 50 Coblation 50 percutaneous valve 50 customizable drug eluting 50 near infrared spectroscopic 50 pacemaker defibrillator 50 Eurocor 50 quadripolar 50 cautery 50 fluoroscopically guided 50 Transcatheter 50 Therapeutix 50 Electrocardiogram ECG 50 RX ACCULINK 50 vena cava filters 50 refractory angina 50 MAGNETOM Verio 50 ThromCat 50 inserted percutaneously 50 extracorporeal membrane oxygenation 50 Ablation Frontiers 50 Drug Eluting Coronary Stent 50 catheter 50 neurostimulator 50 preserved ejection fraction 50 Propaq 50 MicroMed 50 inferior vena cava 50 Blood Glucose Monitoring 50 defibrillator ICD 50 multislice CT 50 filter housings 50 TAXUS Express2 50 OPTIMASS 50 dialysis catheter 50 InspireMD 50 Quantix OR 50 thrombolytics 50 cannulas 50 collimators 50 Catheterization Lab 50 minimally invasive percutaneous 50 IMPELLA 50 Cardiolite 50 Image Guided 50 eSVS MESH 50 intravascular ultrasound 50 Forward Looking IVUS 50 trabeculectomy 50 Conor Medsystems 50 Xtent 50 replacement TAVR 50 Catheterization Laboratory 50 Raymedica 50 TLIF 50 nCPAP 50 cardiac ablation procedures 50 anastomotic 50 electrocardiography ECG 50 transarterial 50 Peripheral Vascular Disease 50 ST Elevation Myocardial 50 Spinal Cord Stimulator 50 VenaCure EVLT 50 abdominal aorta 50 Neuronetics Inc. 50 Spinal Concepts 50 VectorVision 50 PEEK OPTIMA ® 50 Puritan Bennett 50 esophageal stent 50 Medtronic Physio Control 50 Embolic Protection Device 50 brimonidine tartrate 50 Circulatory Support System 50 CVRx 50 REGATTA TM 50 ClearStream 50 percutaneous aortic 50 Dynamic Spine Stabilization 50 fluoroscopic imaging 50 Bone Cement 50 generation rotary VAD 50 pulmonary artery pressures 50 Novalung 50 inotropic 50 Allweiler 50 Fontan procedure 50 Taxus Liberté 50 bipolar radiofrequency 50 hypobaric chambers 50 Peristaltic 50 pulsatile 50 Eon Mini 50 Thermogard XP 50 GliaSite 50 transmyocardial revascularization TMR 50 Magnetic Resonance MR 50 Bioness 50 neuro interventional 50 Northstar Neuroscience 50 CardioWest TM 50 SagaX 50 spinal cord stimulator 50 Vena Cava Filter 50 Alair System 50 ablation catheter 50 Humidification 50 NovoCure 50 Rainbow SET 50 Medigus 50 bone allografts 50 IOL implantation 50 pacemaker implantation 50 intracapsular 50 coronary drug eluting 50 syngo R 50 CLAVE 50 CorCap 50 Intuitive Surgical da Vinci 50 Catheter Ablation 50 tissue ablation 50 abdominal aneurysms 50 inserted subcutaneously 50 transthoracic 50 abdominal aortic 50 external counterpulsation systems 50 endovascular graft 50 Cardiac Therapy 50 MedicalCV 50 rotary screw compressors 50 iliac artery 50 neonatal pediatric 50 implantable neurostimulator 50 SpineJet XL 50 Haghighi Mood 50 InfraReDx 50 guided percutaneous 50 StomaphyX 50 implant defibrillator 50 Cardiometabolic 50 FreeStyle Freedom 50 cobalt chromium stents 50 MicroVention 50 reconstructive implants 50 Welch Allyn Connex 50 anticlotting drugs 50 balloon catheters 50 Advanced Microspheres 50 Mitral Valve Repair 50 valve manifolds 50 bioabsorbable stent 50 haemostasis 50 Multidetector CT 50 Peritoneal Dialysis 50 intrathecal 50 INRatio 50 EndoFLIP ® 50 cathlab 50 Hemostasis 50 radiofrequency RF ablation 50 vena cava 50 Watson Marlow Bredel 50 TomoTherapy Hi Art 50 Phaco 50 TandemHeart 50 prosthetic valve 50 Aortic valve replacement 50 Interactive Orthopedic 50 Renal Artery 50 PROPRIO FOOT 50 venous reflux 50 laryngeal mask airway 50 catheterization procedures 50 REVELATION ® 50 Endovenous 50 metallic stent 50 silver coated endotracheal 50 Contrast Agent 50 Implantable Device 50 Endoprosthesis 50 saphenous vein graft 50 embolic protection 50 phacoemulsification 50 Terumo Heart 50 intensity modulated radiotherapy 50 Synchrony lens 50 Apnex 50 PAGCL 50 Sideguard 50 OneTouch Ping 50 impedance cardiography 50 balloon angioplasties 50 Hemodialysis 50 Catheter 50 Vascular Closure Device 50 OnControl 50 occluded arteries 50 Ascension Orthopedics 50 ultrasound scanner 50 NASDAQ THOR 50 Hemodiafiltration 50 Excimer Laser 50 artificial sphincter 50 NESS H# 50 aortic valve stenosis 50 TraumaCad 50 Flowmeter 50 NIOX 50 Paradigm Veo 50 A1CNow 49 Attrius 49 NAVISTAR ® THERMOCOOL ® 49 XIENCE V stent 49 occluder 49 Gamma Medica 49 ProChon 49 InterStim Therapy 49 Robotic Catheter System 49 Microstaq 49 Datascope Corp. 49 Spiracur 49 minimally invasive outpatient 49 treating abdominal aortic 49 automated radiopharmaceutical distribution 49 occluded artery 49 Electroencephalography 49 Atricure 49 Oximeters 49 Catheters 49 BoneScalpel 49 Intraocular Lens 49 stereotactic biopsy 49 NASDAQ ZOLL 49 brachytherapy applicator 49 PressureWire R 49 angioplasty balloon 49 occlusive disease 49 TAXUS Liberté 49 Stent System 49 implantable cardioverter defibrillator ICD 49 liquid embolic 49 Electrocardiography 49 CRH O'Regan System 49 pulmonary artery catheters 49 thrombus aspiration 49 Aragon Surgical 49 somatosensory evoked potentials 49 Prolieve 49 OmniWave 49 vertebrobasilar 49 occipital nerve 49 inotropes 49 HeartWare 49 EndoPAT 49 OmniSonics Medical Technologies 49 Infinix 49 Enteryx 49 transesophageal 49 Xoft 49 hypotension bradycardia 49 aqueous humor 49 Chronic Heart Failure 49 InterCure 49 Ceremed 49 suture anchor 49 laparoscopic surgical 49 Intra Operative 49 Retisert TM 49 proximal anastomosis 49 FilterWire 49 eBx 49 Repliform 49 valve prosthesis 49 Resurfacing System 49 CryoValve SG 49 venous catheter 49 transesophageal echocardiography TEE 49 Cardiac Pacing 49 Epi LASIK 49 MIOT Hospitals 49 Embolic 49 aortic tissue 49 enhanced external counterpulsation 49 Cardiac Rhythm 49 EV3 49 Vitatron 49 Carotid Stent 49 CRT Ds 49 regenerating bone 49 MyoCell TM 49 Tornier 49 ThromCat TM 49 skin permeation 49 multidose dry 49 external fixators 49 bronchoscopic procedure 49 microfocus 49 treating cardiac arrhythmias 49 intra ocular lenses 49 bio absorbable 49 micropumps 49 MYO VAD TM 49 Eisenmenger syndrome