A multiple lumen device for percutaneous left ventricular unloading during venoarterial extracorporeal membrane oxygenation comprising: an expandable cage, an outer catheter, and an inner catheter, wherein a proximal end of the expandable cage is attached to the outer catheter and a distal end of the expandable cage is attached to the inner catheter, such that when the proximal end of the inner catheter is retracted, the cage moves from a compressed configuration to an expanded configuration is described. Also provided are methods for causing the blood of a subject to flow in a retrograde manner using a multiple lumen device.

A device comprises an implantable blood pump receivable in a sheath for percutaneous delivery. The implantable blood pump comprises a collapsible impeller mounted in a collapsible impeller cage, and a drive device mounted in a housing. The housing is in connection between a first end of a catheter and the collapsible impeller cage. The drive device is adapted for rotating the collapsible impeller. A retractable support structure is adapted to extend from the catheter. The extended retractable support structure is adapted to engage with the wall of the aorta for allowing the implantable blood pump to be secured in the left ventricle. The collapsible impeller cage comprises an inlet and an outlet. The inlet is adapted to receive blood from the left ventricle. The outlet directs blood in the direction of the atrioventricular valve.

An extension cannula for use with a conventional ECMO return cannula is provided. The extension cannula includes a flexible conduit transitionable between a collapsed insertion state and an expanded deployed state when in communication with blood flow from an ECMO machine via the ECMO return cannula. The extension cannula may be positioned through a conventional ECMO return cannula such that the proximal end of the flexible conduit is disposed within and proximal to the end of the ECMO return cannula, while the distal end of the flexible conduit is disposed in a patient's thoracic aorta to deliver oxygenated blood directly to the patient's thoracic aorta via one or more pores at the distal region of the flexible conduit to improve cerebral oxygenation, maintain systemic arterial pulsatility, and reduce the potential for end-organ injury.

An assistance system includes a schedule information acquisition unit that acquires disease information on the surgery and blood vessel information relating to a shape of a portion capable of applying a backup force to the catheter by coming into contact with the catheter in a blood vessel of the patient, a past information acquisition unit that acquires a shape of a catheter used for a past similar surgery having the disease information coinciding with that of the surgery and having the blood vessel information similar to that of the surgery, and a proposal unit that corrects the shape of the catheter used for the past similar surgery, based on a comparison result obtained by comparing the blood vessel information on the surgery with the blood vessel information on the past similar surgery, and that proposes a catheter having the corrected shape, as the catheter to be used for the surgery.

Devices and methods are disclosed for preventing distal embolisms during endovascular interventions. Representative devices are kits that include a first catheter comprising a proximal part and distal part having a principal through lumen, at least one lumen for filling at least one balloon, at least one inflated balloon that closes the lumen of the right or left carotid artery, and a proximal end configured to allow blood to flow through the principal lumen but to block the passage of emboli. The kits include a second catheter in the form of a single-lumen tube with a proximal end and a distal end. The proximal and distal parts of the first catheter may have diameters that are sufficient to allow passage through the lumen of the second catheter and may be sufficiently long when combined to allow at least the distal part of the first catheter to extend beyond the limits of the distal end of the second catheter, when the first catheter passes through the second catheter. Moreover, the internal diameter of the lumen of the second catheter may exceed the external diameter of the distal part of the first catheter.

A medical device comprises a catheter and an aspiration pump. The catheter has a hybrid reinforcement to improve performance characteristics. The aspiration pump is cycled to improve aspiration efficacy.

A system and method for extracting a pVAD device that is implanted with a distal portion in an aorta of the heart and a drive line extending across an inter-atrial septum and out of the body via a superior vessel of the venous vasculature, include a first device that is introduced into a femoral artery and through the descending aorta used to engage a distal part of the pVAD device in the aorta of a patient using an instrument. A second, cutter, device is introduced into the venous vasculature superior to heart, advanced to a position adjacent the inter-atrial septum, and used to cut the pVAD drive line adjacent to the inter-atrial septum. After cutting, a first portion of the pVAD is withdrawn from the body via the venous vasculature, and a second portion is withdrawn from the body via the femoral artery.

The systems, devices, and methods presented herein use a blood pump to obtain measurements of cardiac function. The system can quantify the functioning of the native heart by measuring certain parameters/signals such as aortic pressure or motor current, then calculate and display one or more cardiac parameters and heart function parameters, such as left ventricular pressure, left ventricular end diastolic pressure, or cardiac power output. These parameters provide valuable information to a user regarding current cardiac function, as well as positioning and function of the blood pump. In some embodiments, the system can act as a diagnostic and therapeutic tool. Providing cardiac parameters in real-time, along with warnings about adverse effects and recommendations to support cardiac function, such as increasing or decreasing the volumetric flow rate of blood pumped by the device, administering pharmaceutical therapies, and/or repositioning the blood pump allow clinicians to better support and treat cardiovascular disease.

An assistance system includes a schedule information acquisition unit that acquires disease information on the surgery and blood vessel information relating to a shape of a portion capable of applying a backup force to the catheter by coming into contact with the catheter in a blood vessel of the patient, a past information acquisition unit that acquires a shape of a catheter used for a past similar surgery having the disease information coinciding with that of the surgery and having the blood vessel information similar to that of the surgery, and a proposal unit that corrects the shape of the catheter used for the past similar surgery, based on a comparison result obtained by comparing the blood vessel information on the surgery with the blood vessel information on the past similar surgery, and that proposes a catheter having the corrected shape, as the catheter to be used for the surgery.

Methods and devices are provided for protecting the cerebrovascular circulation from embolic debris released during an index procedure. An embolic protection filter is delivered in a reduced profile configuration via an access catheter, and positioned in the aorta spanning the ostia to the three great vessels leading to the cerebral circulation. An index procedure catheter is thereafter advanced through the same access catheter to conduct the index procedure. The index procedure may be a transcatheter aortic valve replacement.