Abstract: A prosthetic heart valve can include a radially expandable and compressible frame and a valvular structure. The frame can include a plurality of circumferentially spaced axial struts, a plurality of pairs of axial posts, and a plurality of rows of angled struts. Each pair of axial posts can be positioned circumferentially between two axial struts. The plurality of rows can include at least a first row, a second row downstream of the first row, a third row downstream of the second row, and a fourth row downstream of the third row. Each of the angled struts can be connected at one end to one of the axial struts and at another end to one of the axial posts. The angled struts of the first and fourth rows can be shorter than the struts of the second and third rows.

Abstract: This disclosure is directed to prosthetic heart valves and frames for prosthetic heart valves having actuation assemblies with at least two bolts coupled to each other. The actuation assembly with at least two bolts allow different portions of the actuation assembly to be designed to meet different needs. In one example, the actuation mechanism can include a first bolt coupled end-to-end with a second bolt. The second bolt can have a greater diameter and correspondingly greater mechanical strength than the first bolt. The first bolt can have a lesser diameter suitable for minimizing the thickness of surrounding and adjacent valve frame components. The actuation assembly can also include one or more of a nut, a washer, and a portion designed to attach to components of a delivery system. Also disclosed herein are actuation assemblies including a washer secured by a pin extending through the bolt of the actuation assembly.

Abstract: This disclosure is directed to prosthetic heart valves having frames with features configured to increase the flexibility of certain frame components and/or to allow the frame to maintain an at least substantially cylindrical shape during deployment. In one example, a frame for an implantable device can include a first end, a second end, a plurality of angled struts, and a plurality of vertical struts. One or more vertical struts of the plurality of vertical struts includes a fixed end portion connected to a vertical strut junction, a free end portion, and a plurality of apertures disposed between the fixed end portion and the free end portion and configured to increase the flexibility of the one or more vertical struts. In some examples, one or more vertical struts of the plurality of vertical struts comprises an axially compressible aperture configured to enable the axial compression of the strut.

Abstract: A prosthetic valve includes a frame having a first frame portion and a first window formed in the first frame portion. A threaded rod is coupled to the first frame portion and extends through the first window. Rotation of the threaded rod relative to the first frame portion radially expands or radially compresses the frame. A stopper is disposed within the first window and coupled to the threaded rod. The stopper is fixed in axial position relative to the threaded rod and axially movable within the first window by rotation of the threaded rod. The stopper can engage a first edge of the window to produce radial compression of the frame.

Abstract: Certain examples of the disclosure concern a prosthetic device. The prosthetic device can include a radially compressible and expandable frame and a screw actuator coupled to the frame and configured to be rotated to radially expand the frame from a radially compressed state to a radially expanded state. The frame can include two or more pairs of first markers and second markers. The pairs of first and second markers can be circumferentially spaced apart from each other. The first and second markers of each pair can be axially aligned and axially movable relative to one another as the frame radially expands. Positions of the first and second markers can be configured so that a difference in axial distances between respective pairs of the first markers and second markers can indicate a degree of evenness of the frame's radial expansion.

Abstract: Examples of prosthetic heart valves and frames for use in prosthetic heart valve are disclosed herein. The prosthetic heart valves comprise frames that are movable between a radially compressed configuration and a radially-expanded configuration and comprise a row of inlet cells, a row of outlet cells, and a row of intermediate cells. The frames of the prosthetic heart valves include actuation members and locking mechanisms configured to secure the frame in one or more radially-expanded configurations. In some examples, the actuation members and locking members are integrally formed with the frame. The frames of the prosthetic heart valves can be coupled to one or more shafts of a delivery apparatus via a threaded connection or a non-threaded connection.

Abstract: A prosthetic device, such as a prosthetic heart valve, can include a radially compressible and expandable frame and a screw actuator that is coupled to the frame and configured to be rotated to radially expand the frame from a radially compressed state to a first radially expanded state. The frame includes an over-expansion structure that is configured to allow relative sliding movement between the screw actuator and the frame in a longitudinal direction to permit the frame to radially expand from the first radially expanded state to a second radially expanded state when an external expansion force applied to the prosthetic heart valve exceeds a predetermined force.

Abstract: A method of operating a generator set is disclosed. The method includes generating a current using a generator set, and stepping down the generated current to a stepped down current, using an internal current transformer. The method includes measuring the stepped down current using a current meter that may generate a current signal representative of the stepped down current. Further, the method includes generating a root-mean-square (RMS) value using a plurality of current values associated with the current signal. The method also includes generating a modified RMS value, using the current values that are greater than a predetermined current value. The method includes determining a measured value of the current generated by the generator set based on the RMS value and the modified RMS value. In addition, the method includes adjusting an operation of the generator set when the measured value exceeds an over-current threshold.

Abstract: A method of setting up a genset system for operation includes selecting one of a plurality of different sensors to monitor an operating parameter of a genset system, and coupling the selected sensor with a data processor of the genset system. The method further includes configuring the data processor for processing inputs from the selected sensor, for example an optional replacement sensor, by entering custom sensor calibration data for the selected sensor and recording the custom sensor calibration data on at least one computer writable medium of a control system for the genset system. A genset system includes a combustion engine, a generator, a set of standard sensors, and a control system. The control system includes a data processor configured to receive and process inputs from custom sensors, and includes a computer writable medium for storing custom sensor calibration data.

Abstract: A method of setting up a genset system for operation includes selecting one of a plurality of different sensors to monitor an operating parameter of a genset system, and coupling the selected sensor with a data processor of the genset system. The method further includes configuring the data processor for processing inputs from the selected sensor, for example an optional replacement sensor, by entering custom sensor calibration data for the selected sensor and recording the custom sensor calibration data on at least one computer writable medium of a control system for the genset system. A genset system includes a combustion engine, a generator, a set of standard sensors, and a control system. The control system includes a data processor configured to receive and process inputs from custom sensors, and includes a computer writable medium for storing custom sensor calibration data.

Abstract: Method and apparatus for changing the rating of engine generator set by selecting a generator set rating using a rating selector included in the generator set control system. The generator set rating includes at least an engine rating and voltage.

Abstract: Method and apparatus for changing the rating of engine generator set by selecting a generator set rating using a rating selector included in the generator set control system. The generator set rating includes at least an engine rating and voltage.

Abstract: A generator set controller verifies the status of a synchroscope mode selector to determine whether the generator set controller is operating in a synchroscope mode. When operating in a synchroscope mode, the generator set controller uses an existing display panel to create an indication of the difference between the phase of the power on a power bus and the phase of the power output of the generator.

Abstract: A generator set controller includes a dead bus sensor producing a dead bus signal indicative of a power failure on a power bus that is an input to the controller on a digital input channel. The controller also receives a voltage signal from a phase of a power bus.