Abstract: The present invention comprises at least sensing, monitoring, and display of motor current which is then used in various embodiments of a rotational atherectomy device to determine and/or predict, among other things, treatment progression, treatment completion, optimal rotational speed, optimal advancement or traversal speed during treatment, whether stall appears imminent, and/or reacting to stop motor rotation before a stall occurs. In some embodiments, the determination or prediction results in an automatic, or preprogrammed adjustment by the control unit of the rotational speed of the rotating drive shaft and associated tool.

Abstract: Various embodiments of the systems, methods, and devices are provided for controlled operation of IVL for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within a fluid-filled balloon, creating a determined pressure output over several voltage pulses.

Abstract: A medical device with an implantable blood pump and a control and sensing unit configured to determine the flow rate generated by the blood pump when driven by an electric motor, wherein the flow rate is determined using peak-to-peak current data generated by the electric motor and, in some cases, associated heart rate data. In some embodiments, the validity of pulsatility of the resulting blood flow is determined and, if out of predetermined limits, an alarm may be actuated.

Abstract: An intravascular lithotripsy catheter system for use in providing an energy wave a force to a thrombus or lesion within a vasculature, the catheter system including a catheter that extends from a proximal end to a distal end with a saline delivery lumen open from the distal end of the catheter for creating a controlled volume or bolus of saline at a distal region of the catheter, at least one pair of electrodes provided within the distal region of the controlled volume that are connectable with a high voltage pulse generator to create a spark across the electrode pair when inflated with a saline solution, and an optical fiber extending from the proximal end of the catheter distally to a position within the balloon for observing an optical phenomenon within the balloon when detectable light energy is generated by the optical phenomenon. Preferably, the optical fiber is connected with a photosensor at the proximal end of the catheter. Methods of using such a catheter system are also contemplated.

Abstract: The present invention comprises at least sensing, monitoring, and display of motor current which is then used in various embodiments of a rotational atherectomy device to determine and/or predict, among other things, treatment progression, treatment completion, optimal rotational speed, optimal advancement or traversal speed during treatment, whether stall appears imminent, and/or reacting to stop motor rotation before a stall occurs. In some embodiments, the determination or prediction results in an automatic, or preprogrammed adjustment by the control unit of the rotational speed of the rotating drive shaft and associated tool.

Abstract: The present invention comprises at least sensing, monitoring, and display of motor current which is then used in various embodiments of a rotational atherectomy device to determine and/or predict, among other things, treatment progression, treatment completion, optimal rotational speed, optimal advancement or traversal speed during treatment, whether stall appears imminent, and/or reacting to stop motor rotation before a stall occurs. In some embodiments, the determination or prediction results in an automatic, or preprogrammed adjustment by the control unit of the rotational speed of the rotating drive shaft and associated tool.

Abstract: A medical device with an implantable blood pump and a control and sensing unit configured to determine the flow rate generated by the blood pump when driven by an electric motor, wherein the flow rate is determined using peak-to-peak current data generated by the electric motor and, in some cases, associated heart rate data. In some embodiments, the validity of pulsatility of the resulting blood flow is determined and, if out of predetermined limits, an alarm may be actuated.

Abstract: A gearless rotational motor comprising a motor drive shaft adapted to be rotated by the gearless rotational motor, the motor drive shaft having a lumen, a proximal end extending proximally from the motor and a distal end extending distally away from the motor. The distal end adapted to connect with a torqueable flexible shaft whereby rotation of the motor drive shaft also rotates the torqueable flexible shaft.

Abstract: The present invention comprises at least sensing, monitoring, and display of motor current which is then used in various embodiments of a rotational atherectomy device to determine and/or predict, among other things, treatment progression, treatment completion, optimal rotational speed, optimal advancement or traversal speed during treatment, whether stall appears imminent, and/or reacting to stop motor rotation before a stall occurs. In some embodiments, the determination or prediction results in an automatic, or preprogrammed adjustment by the control unit of the rotational speed of the rotating drive shaft and associated tool.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable and collapsible, wherein the expandable housing region includes the inlet to the pump and wherein the distal diameter of the expandable housing region, including the inlet, is larger than a proximal diameter of the expandable housing region. A non-expandable region may be provided and disposed between the expandable housing region and the pump assembly of the intravascular blood pump.

Abstract: The present invention provides an intravascular blood pump comprising a handle in operational connection and communication with a rotational motor and impeller assembly that is configured for placement and positioning within a patient's vasculature. The handle comprises a display for displaying real-time physiological parameters associated with the blood pump procedure and controls for modifying operational parameters. In some embodiments, the display portion of the handle may be connected and/or disconnected from the non-display portion to allow re-use of the display portion in subsequent blood pump procedures.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable, wherein the housing region comprises a series of troughs extending along at least a portion of the length of the housing region, wherein the integrated lead trough(s) may be defined by or within the housing region and wherein each adjacent pair of troughs are separated by an insulated spacing gap and may be covered to form insulated conduits. The integrated lead trough(s) may be configured to receive one or more electrical leads therein.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable, wherein the housing region comprises at least one trough extending along and/or around at least a portion of the length of the housing region, wherein the integrated lead trough(s) may be defined by or within the housing region. The integrated lead trough(s) may be configured to receive one or more electrical leads therein that may be in operative connection with a sensor and/or working element.

Abstract: The present invention provides an intravascular blood pump comprising an expandable and collapsible region distal to a pump assembly. In some embodiments, the expandable and collapsible region may comprise expandable and collapsible proximal and/or distal transition sections adjacent a central expandable and collapsible region. Support structure, e.g., an expandable and collapsible stent may comprise at least a part of the expandable and collapsible region. In some embodiments, a distal portion of the housing comprises the expandable and collapsible region, wherein an inversion of the distal housing results in a collapsed configuration and eversion of the distal housing results in an expanded configuration.

Abstract: The present invention provides an intravascular blood pump comprising an expandable and collapsible region distal to a pump assembly and proximal in certain embodiments to inlet apertures in the pump housing. In some embodiments, the expandable and collapsible region may comprise expandable and collapsible proximal and/or distal transition sections adjacent a central expandable and collapsible region. Support structure, e.g., an expandable and collapsible stent may comprise at least a part of the expandable and collapsible region.

Abstract: The Powerline Communication (“PLC”) systems and methods described allow for bi-directional communication along an AC or DC conductor between a first device and at least a second device comprising a medical device system. Generally, two devices within a sterile field may communicate with each other by PLC or a first device within a sterile field may communicate with a second device that is outside the sterile field by PLC. More specifically, a controller unit may communicate with a saline, or other fluid, pump to achieve a variety of functional purposes. Similarly, a measurement device may share measured data with another device.

Abstract: The present invention provides an intravascular blood pump comprising a handle in operational connection and communication with a rotational motor and impeller assembly that is configured for placement and positioning within a patient's vasculature. The handle comprises a display for displaying real-time physiological parameters associated with the blood pump procedure and controls for modifying operational parameters. In some embodiments, the display portion of the handle may be connected and/or disconnected from the non-display portion to allow re-use of the display portion in subsequent blood pump procedures.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable and collapsible, wherein the expandable housing region includes the inlet to the pump and wherein the distal diameter of the expandable housing region, including the inlet, is larger than a proximal diameter of the expandable housing region. A non-expandable region may be provided and disposed between the expandable housing region and the pump assembly of the intravascular blood pump.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable, wherein the housing region comprises a series of troughs extending along at least a portion of the length of the housing region, wherein the integrated lead trough(s) may be defined by or within the housing region and wherein each adjacent pair of troughs are separated by an insulated spacing gap and may be covered to form insulated conduits. The integrated lead trough(s) may be configured to receive one or more electrical leads therein.

Abstract: The present invention provides an intravascular blood pump comprising a housing region that may be expandable, wherein the housing region comprises at least one trough extending along and/or around at least a portion of the length of the housing region, wherein the integrated lead trough(s) may be defined by or within the housing region. The integrated lead trough(s) may be configured to receive one or more electrical leads therein that may be in operative connection with a sensor and/or working element.