A61M60/816

CARDIAC SUPPORT SYSTEM FLOW MEASUREMENT USING PRESSURE SENSORS
20210290933 · 2021-09-23 ·

The invention relates to an implantable vascular support system (10), comprising: —a fluid channel (13) passing through the support system (10) and through which fluid can flow; —a first pressure sensor (18a, b) arranged and configured to determine at least a static pressure or a total pressure in the region of the support system (10); —a second pressure sensor (17) arranged and configured to determine at least a static pressure or a total pressure in the region of the fluid channel (13).

Communication methods and architecture for heart treatment systems

The present invention generally relates to heart treatment systems. In some aspects, methods and systems are provided for facilitating communication between implanted devices. For example, an implantable cardiac rhythm management device may be configured to communicate with an implantable blood pump. The implantable cardiac rhythm management device may deliver heart stimulation rate information in addition to information associated with any detected abnormalities in heart function. In response, the pump may be configured to adjust pumping by the pump to better accommodate a patient's particular needs.

Implantable Device and Delivery Method

An implantable device adapted for assisting the flow of blood from a left atrium to a descending aorta of an in-vivo heart is provided. The implantable device includes an inlet cannula adapted to be connected to the left atrium and an outlet cannula adapted to be connected to the descending aorta. In one embodiment, the inlet and outlet cannula is in fluid communication with a blood pressure pump. The implantable device further includes a first accelerometer mounted on a housing of the blood pressure pump, wherein the first accelerometer is adapted for measuring mitral valve motion. The implantable device also includes an implanted controller in electrical communication with at least one implanted ECG sensor adapted for detecting ECG signals, wherein the at least one implanted ECG sensor is positioned between the blood pressure pump and the implanted controller and the implanted controller also includes a processor adapted to analyse detected ECG signals and the mitral valve motion. In one embodiment, the processor dynamically adjusts the target blood pressure pump speed based on ECG signals and mitral valve motion such that the blood flows from left atrium to both left ventricle and descending aorta.

CATHETER BLOOD PUMPS AND COLLAPSIBLE BLOOD CONDUITS

Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

CATHETER BLOOD PUMPS AND COLLAPSIBLE PUMP HOUSINGS

Catheter blood pumps that include an expandable pump portion. The pump portions include an collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

DEVICE AND A METHOD FOR MEASURING FLUID-MECHANICALLY EFFECTIVE MATERIAL PARAMETERS OF A FLUID
20210190658 · 2021-06-24 · ·

A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.

FLUID PUMP
20210199127 · 2021-07-01 · ·

A fluid pump for conveying a fluid is provided comprising: a housing with a fluid inlet and a fluid outlet, a rotor which is disposed rotatably about an axis of rotation in the housing, and a rotor body and at least one conveying element connected rigidly to the rotor body in order to convey the fluid from the fluid inlet to the fluid outlet, the rotor being mounted in the housing radially to the axis of rotation by means of a passive magnetic bearing and also axially and radially by means of a mechanical and/or hydrodynamic bearing disposed on the inlet side or outlet side. A safety bearing is disposed on one side of the rotor situated opposite the mechanical and/or hydrodynamic bearing, wherein the safety bearing has a first safety bearing component connected rigidly to the rotor and a second safety bearing component connected rigidly to the housing.

Ventricular assist device with pulse augmentation and automatic regurgitant flow shutoff

A ventricular assist device includes a housing including a pumping chamber. A stator assembly is supported in the housing. The stator assembly includes a core having a length measured along a pump axis. A rotating assembly is rotatable relative to the stator assembly about the pump axis. The rotating assembly includes an impeller positioned in the pumping chamber and a rotor magnet. The rotating assembly is movable axially along the pump axis relative to the pump housing and the stator assembly. The rotating assembly includes a rotor magnet configured and arranged such that the magnetic attraction of the rotor magnet to the core urges the rotating assembly to move axially relative to the stator assembly such that a flow regulating portion of the rotating assembly engages with a corresponding portion of the housing to block flow through the pumping chamber when the pump is at rest.

FLUID HANDLING SYSTEM
20210187270 · 2021-06-24 ·

A fluid handling system includes a console configured to connect with a first electrical interface that is configured to connect to a plurality of components of the fluid handling system, the console including a second electrical interface configured to connect with the first electrical interface, a display, and one or more hardware processors. A control system includes the one or more hardware processors and a non-transitory memory storing instructions that, when executed, cause the control system to: detect an electrical signal from a first component of the plurality of components of the fluid handling system responsive to a caretaker performing a first instruction; determine a system state of the fluid handling system based at least in part on the electrical signal from the first component; compare the system state with a predetermined state condition corresponding to said first instruction; and output an indication on the display of the system state.

Fluid handling system
11033728 · 2021-06-15 · ·

Various embodiments of a fluid handling system are disclosed herein. For example, the fluid handling system can include a catheter assembly and a console configured to control the operation of the catheter assembly. A removable interface member can be configured to provide fluid and electrical communication between the catheter assembly and the console. Additionally, a control system is disclosed for controlling operation of the fluid handling system.