Patent classifications
A61M60/13
Mammalian body conduit intralumenal device and lumen wall anchor assembly, components thereof and methods of implantation and explanation thereof
Transcatheterly implantable mammalian body conduit intralumenal device and lumen wall anchor assembly. Anchor includes: wire network, connector positioning wires having a secured and a released position, and a connector disposed at end of each wire. Anchor has: a compact-secured-configuration, an expanded-secured-configuration, an expanded-released-configuration. When the anchor is in the expanded-secured-configuration, the wire network exerts a force on conduit lumen wall and the connector positioning wires are the in secured position. When the anchor is in the expanded-released-configuration, the connector positioning wires are in the released position, and do not obstruct fluid flow axially through conduit. Device includes an interconnector that allows for the releasable interconnector of the connectors thereto. Device and anchor assembly can be explanted from the conduit. Or, device can be released from the anchor at the implantation site and only the device explanted with the anchor remaining within the conduit.
SYSTEMS AND METHODS OF DERIVING PRESSURES EXTERNAL TO AN INTRACARDIAC BLOOD PUMP USING INTERNAL PRESSURE SENSORS
Systems and methods for deriving pressures outside of a blood inlets and blood outlets of an intracardiac blood pump assembly, and pressure differentials therebetween. Pressures outside of a blood inlet may be derived based on one or more readings from a pressure sensor placed within a blood inlet, one or more readings from a differential pressure sensor configured to measure pressure differential across a wall of the pump housing or cannula, and speed of the pump motor. Pressure differentials between a blood inlet and blood outlet may be derived based on one or more readings from the differential pressure sensor and speed of the pump motor. Pressures outside of a blood outlet may be derived based on a derived pressure outside of a blood inlet and a derived pressure differential between the blood inlet and the blood outlet.
HEART PUMP ASSEMBLY WITH A BLOOD INLET CONFIGURED TO INCREASE BLOOD FLOW
A heart pump assembly having a blood inlet configured to increase blood flow into the heart pump assembly is disclosed herein. The heart pump assembly includes a motor housing, a cannula connected to the motor housing, and a blood inlet connected to the cannula. The blood inlet has a distal body portion, a proximal body portion defining an inlet conduit therewithin, and a plurality of cage openings defined and positioned between the distal and proximal body portions. The inlet conduit has one of a tapered portion, a frustrum-shaped portion, or both a tapered portion and a frustrum-shaped portion and is adapted to reduce flow turbulence at the blood inlet and increase the blood flow into the heart pump.
HEART PUMP ASSEMBLY WITH A BLOOD INLET CONFIGURED TO INCREASE BLOOD FLOW
A heart pump assembly having a blood inlet configured to increase blood flow into the heart pump assembly is disclosed herein. The heart pump assembly includes a motor housing, a cannula connected to the motor housing, and a blood inlet connected to the cannula. The blood inlet has a distal body portion, a proximal body portion defining an inlet conduit therewithin, and a plurality of cage openings defined and positioned between the distal and proximal body portions. The inlet conduit has one of a tapered portion, a frustrum-shaped portion, or both a tapered portion and a frustrum-shaped portion and is adapted to reduce flow turbulence at the blood inlet and increase the blood flow into the heart pump.
METHODS AND DEVICES TO IMPROVE THE EFFICACY OF CARDIOPULMONARY RESUSCITATION
A system and method for integrating and synchronizing an automated mechanical cardiopulmonary resuscitation (CPR) device with components of cardiac catheterization laboratories so as to enhance the efficacy of each intervention. Synchronization can include image gating so that a monitor shows real time images during relaxation of the CPR, and a static image during compression of the CPR.
METHODS AND DEVICES TO IMPROVE THE EFFICACY OF CARDIOPULMONARY RESUSCITATION
A system and method for integrating and synchronizing an automated mechanical cardiopulmonary resuscitation (CPR) device with components of cardiac catheterization laboratories so as to enhance the efficacy of each intervention. Synchronization can include image gating so that a monitor shows real time images during relaxation of the CPR, and a static image during compression of the CPR.
BLOOD PUMP SHAFT BEARING
A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.
Intravascular pump without inducer and centrifugal force-driven expansion of impeller blades and/or expandable and collapsible impeller housing
The present invention provides an intravascular blood pump comprising an impeller housing and/or impeller blade(s) that may be expandable and collapsible. The blade(s) and/or impeller housing may be biased to expand or may be expanded by centrifugal forces generated during rotation of the impeller and blades with an operatively connected rotational motor.
Intravascular pump without inducer and centrifugal force-driven expansion of impeller blades and/or expandable and collapsible impeller housing
The present invention provides an intravascular blood pump comprising an impeller housing and/or impeller blade(s) that may be expandable and collapsible. The blade(s) and/or impeller housing may be biased to expand or may be expanded by centrifugal forces generated during rotation of the impeller and blades with an operatively connected rotational motor.
SYSTEMS AND METHODS FOR SELECTIVELY OCCLUDING THE SUPERIOR VENA CAVA FOR TREATING HEART CONDITIONS
Systems and methods are provided for treating conditions such as heart failure and/or pulmonary hypertension by at least partially occluding flow through the superior vena cava for an interval spanning multiple cardiac cycles. A catheter with an occlusion device is provided along with a controller that actuates a drive mechanism to provide at least partial occlusion of the patient's superior vena cava, which reduces cardiac filling pressures, and induces a favorable shift in the patient's Frank-Starling curve towards healthy heart functionality and improved cardiac performance. The system may include sensors to determine the degree of occlusion of the superior vena cava. The occlusion system may be used to reduce volume in a heart and facilitate a cardiac procedure. The occlusion system may be used to relieve an overloaded chamber during and/or after deploying a VAD.