Limflow Gmbh

Corflow Therapeutics Ag

Other

Intravascular Research Limited

Medtronic Ardian Luxembourg S.a.r.l.

Medtronic Ireland Manufacturing Unlimited Company

Medtronic, Inc.

Circulation Research Limited

Martin Terry Rothman

Robert Julian Dickinson

Andrew Robert Pacey

Theodosios Alexander

Timothy Lenihan

Steven Kum

Roberto Ferraresi

Robert S Schwartz

Jon Helge Hoem

Paul John Coates

Robert Melder

Douglas A Hettrick

Julie Trudel

Richard I Kitney

Ajay Kumar Jain

Stefan S Tunev

Sean Salmon

Keith Straughan

James R Keogh

Paul T Rothstein

Jeffrey D Sandstrom

Kevin M Mauch

Joel R Racchini

Justin Goshgarian

William W Chang

Stefan Stoyanov Tunev

Jacques Seguin

Leonila Rivera

Elvin Leonard Nix

Amit Kumar Som

Methods for treating a patient using therapeutic renal neuromodulation and associated devices, system, and methods are disclosed herein. One aspect of the present technology is directed to neuromodulating nerve tissue in selected anatomical regions. In one embodiment, the method can include intravascularly advancing an elongate shaft of a catheter to renal vasculature of a human patient and locating a first neuromodulation element of the catheter within a distalmost portion of a main renal artery. The method includes locating a second neuromodulation element of the catheter within a branch vessel of the renal artery distal to a bifurcation at a distal end of the main renal artery. Neuromodulation of the nerve tissue surrounding the selected anatomical treatment locations can inhibit sympathetic neural activity in nerves proximate a portion of a renal artery and/or a renal branch artery proximate a renal parenchyma.

Systems, devices, and methods for modulating renal nerve tissue

Mechanical circulatory supports configured to operate in series with the native heart are disclosed. In an embodiment, a centrifugal pump is used. In an embodiment, inlet and outlet ports are connected into the aorta and blood flow is diverted through a lumen and a centrifugal pump between the inlet and outlet ports. The supports may create a pressure rise between about 40-80 mmHg, and maintain a flow rate of about 5 L/min. The support may be configured to be inserted in a collinear manner with the descending aorta. The support may be optimized to replicate naturally occurring vortex formation within the aorta. Diffusers of different dimensions and configurations, such as helical configuration, and/or the orientation of installation may be used to optimize vortex formation. The support may use an impeller which is electromagnetically suspended, stabilized, and rotated to pump blood.

Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta

A temporary, removable mechanical circulatory support heart-assist device has at least two propellers or impellers. Each propeller or impeller has a number of blades arranged around an axis of rotation. The blades are configured to pump blood. The two propellers or impellers rotate in opposite directions from each other. The device can be configured to be implanted and removed with minimally invasive surgery.

Removable mechanical circulatory support for short term use

Mechanical circulatory supports configured to operate in series with the native heart are disclosed. In an embodiment, an intravascular propeller is installed into the descending aorta and anchored within via an expandable anchoring mechanism. The propeller and anchoring mechanism may be foldable so as to be percutaneously deliverable to the aorta. The propeller may have foldable blades. The blades may be magnetic and may be driven by a concentric electromagnetic stator circumferentially outside the magnetic blades. The stator may be intravascular or may be configured to be installed around the outer circumference of the blood vessel. The support may create a pressure rise between about 20-50 mmHg, and maintain a flow rate of about 5 L/min. The support may have one or more pairs of contra-rotating propellers to modulate the tangential velocity of the blood flow. The support may have static pre-swirlers and or de-swirlers. The support may be optimized to replicate naturally occurring vortex formation within the descending aorta.

Mechanical circulatory support device with axial flow turbomachine optimized for heart failure and cardio-renal syndrome by implantation in the descending aorta

MVO is treated by introducing injectate into blood vessels affected by MVO at precise flow rates, while blocking retrograde flow, such that the natural pumping of the heart aids in forcing the injectate into the affected microvessels. Monitoring pressure distal of an occlusion balloon is used to determine treatment effectiveness and heart health.

System and methods for treating MVO

Systems and methods for neuromodulation therapy are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a plurality of reference electrodes at the skin of a human patient and intravascularly positioning a plurality of ablation electrodes within a blood vessel lumen at a treatment site. The method can include obtaining impedance measurements between different combinations of the reference electrodes and the ablation electrodes and, based on the impedance measurements, identifying two or more electrode groups for treatment, where at least two of the electrode groups include a different one of the reference electrodes and a different one of the ablation electrodes.

Systems, devices, and associated methods for neuromodulation with enhanced nerve targeting

Methods and devices for the diagnosis and treatment of microvascular dysfunction, such as microvascular obstruction (MVO) and other dysfunctional diseases of the microvasculature of many organs, including the heart. The present subject matter provides novel devices and methods to successfully diagnose, restore patency, open and preserve flow, and limit reperfusion injury in organs and cases with microvascular dysfunction. The present subject matter provides apparatus and method to detect, measure and treat microvascular dysfunction in real time during scenarios such as invasive angiographic/therapeutic procedures. Such procedures include therapy for organ systems including the heart (acute myocardial infarction&#x2014;primary percutaneous coronary intervention (PPCI)), brain stroke (CVA), bowel ischemia/infarction, pulmonary emboli/infarction, critical limb ischemia/infarction, renal ischemia/infarction, and others. The present subject matter provides various systems including an infusion and sensing catheter, diagnostic agents, therapeutic agents, and a control console with specialized algorithms to diagnose and treat microvascular dysfunction, such as MVO, in real-time with real-time operator feedback for interventional procedures.

Method and apparatus for diagnosis and treatment of microvascular dysfunction

A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.

Methods for targeting a body passage to effect fluid flow

Apparatus and methods are described for performing percutaneous catheter-based interventional surgery. The apparatus comprises first and second devices that are located in adjacent body cavities, such as adjacent blood vessels, the first device being capable of transmitting a directional signal that can be received by the second device. The direction of the signal is correlated with the facility to direct therapy, such that improved accuracy in therapy placement is thereby achieved. Methods for treating patients utilising the means and apparatus are also provided.

Minimally invasive surgical apparatus and methods

Devices for the diagnosis and treatment of microvascular obstruction (MVO) and other dysfunctional diseases of the microvasculature of many organs, including the heart. The present subject matter provides novel devices and methods to detect and measure or treat MVO in real time during scenarios such as invasive angiographic/therapeutic procedures. Such procedures include therapy for organ systems including the heart (acute myocardial infarction-primary percutaneous coronary intervention (PPCI)), brain stroke (CVA), bowel ischemia/infarction, pulmonary emboli/infarction, critical limb ischemia/infarction, renal ischemia/infarction, and others. Using methods of the invention, a system comprising specialized infusion and sensing catheter, diagnostic agents, therapeutic agents, and control console with specialized algorithms can both diagnose and treat MVO by eliminating the microvascular clot and debris causing the obstruction. The techniques involve a combination of novel devices, methods, and software to simultaneously diagnose and treat MVO.

System for diagnosing and treating microvascular obstructions

Systems and apparatus are included that are configured to determine the effectiveness of apparatus and methods used to diagnose and unblock microvascular obstruction (MVO). An infusion system blocks antegrade flow for a short time and measures vascular pressure response as an infusate is infused in stepwise fashion at increasingly higher flowrates. During the antegrade flow occlusion, calculations of the real-time vascular resistance can be obtained using the formula R(t)=P(t)/Q(t) where: Q(t) is the flow mean values generated by the infusion system; P(t) is the distal pressure response in the vessel generated from the flow infusion; and R(t) is the calculated vascular resistance using the two other known parameters.

Intracoronary characterization of microvascular obstruction (MVO) and myocardial infarction

Growing community of inventors

Santa Rosa, CA, United States of America

Martin Terry Rothman