Abstract: The systems and methods described herein determine metrics of cardiac performance via a mechanical circulatory support device and use the cardiac performance to calibrate, control and deliver mechanical circulatory support for the heart. The systems include a controller configured to operate the device, receive inputs indicative of device operating conditions and hemodynamic parameters, and determine vascular performance, including vascular resistance and compliance, and native cardiac output. The systems and methods operate by using the mechanical circulatory support device (e.g., a heart pump) to introduce controlled perturbations of the vascular system and, in response, determine heart parameters such as stroke volume, vascular resistance and compliance, left ventricular end diastolic pressure, and ultimately determine native cardiac output.

Abstract: Methods and apparatus for determining a contractile reserve of a heart of a patient are provided. The method includes controlling a heart pump to operate at a first speed, determining based on a motor current signal received from a motor when the heart pump is operating at the first speed, a first value for a cardiac contractility metric, controlling the heart pump to operate at a second speed, determining based, at least in part, on the motor current signal received from the motor when the heart pump is operating at the second speed, a second value for the cardiac contractility metric, determining a contractile reserve metric based, at least in part, on the first value and the second value of the cardiac contractility metric, and outputting an indication of the contractile reserve metric on a user interface associated with the heart pump.

Abstract: A method, system and computer program product are provided. A computing system collects information related to a patient's preparation for a medical procedure and provides information regarding the medical procedure and a medical condition of the patient to at least one member of a medical procedure team. Data pertaining to performance of the medical procedure in an operating room is collected from multiple sensors. Progress of the medical procedure is monitored in real time by analyzing the collected data, a procedure reference library, and a physician history to determine a status of the medical procedure. A schedule of one or more subsequent medical procedures for the operating room is adjusted in real time based on the monitored progress. Notifications of the adjusted schedule may be transmitted to participants of the one or more subsequent medical procedures.

Abstract: The systems and methods described herein determine metrics of cardiac or vascular performance, such as cardiac output, and can use the metrics to determine appropriate levels of mechanical circulatory support to be provided to the patient. The systems and methods described determine cardiac performance by determining aortic pressure measurements (or other physiologic measurements) within a single heartbeat or across multiple heartbeats and using such measurements in conjunction with flow estimations or flow measurements made during the single heartbeat or multiple heartbeats to determine the cardiac performance, including determining the cardiac output. By utilizing a mechanical circulatory support system placed within the vasculature, the need to place a separate measurement device within a patient is reduced or eliminated. The system and methods described herein may characterize cardiac performance without altering the operation of the heart pump (e.g., without increasing or decreasing pump speed).

Abstract: The systems and methods described herein determine metrics of cardiac or vascular performance, such as cardiac output, and can use the metrics to determine appropriate levels of mechanical circulatory support to be provided to the patient. The systems and methods described determine cardiac performance by determining aortic pressure measurements (or other physiologic measurements) within a single heartbeat or across multiple heartbeats and using such measurements in conjunction with flow estimations or flow measurements made during the single heartbeat or multiple heartbeats to determine the cardiac performance, including determining the cardiac output. By utilizing a mechanical circulatory support system placed within the vasculature, the need to place a separate measurement device within a patient is reduced or eliminated. The system and methods described herein may characterize cardiac performance without altering the operation of the heart pump (e.g., without increasing or decreasing pump speed).

Abstract: The systems and methods described herein determine metrics of cardiac performance via a mechanical circulatory support device and use the cardiac performance to calibrate, control and deliver mechanical circulatory support for the heart. The systems include a controller configured to operate the device, receive inputs indicative of device operating conditions and hemodynamic parameters, and determine vascular performance, including vascular resistance and compliance, and native cardiac output. The systems and methods operate by using the mechanical circulatory support device (e.g., a heart pump) to introduce controlled perturbations of the vascular system and, in response, determine heart parameters such as stroke volume, vascular resistance and compliance, left ventricular end diastolic pressure, and ultimately determine native cardiac output.

Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.

Abstract: The systems and methods described herein determine metrics of cardiac performance via a mechanical circulatory support device and use the cardiac performance to calibrate, control and deliver mechanical circulatory support for the heart. The systems include a controller configured to operate the device, receive inputs indicative of device operating conditions and hemodynamic parameters, and determine vascular performance, including vascular resistance and compliance, and native cardiac output. The systems and methods operate by using the mechanical circulatory support device (e.g., a heart pump) to introduce controlled perturbations of the vascular system and, in response, determine heart parameters such as stroke volume, vascular resistance and compliance, left ventricular end diastolic pressure, and ultimately determine native cardiac output.

Abstract: Data characterizing a first address of a software service executing based on a first virtual resource that is within a remote computing environment is received. The executing includes transmitting a request for utilization of the first virtual resource. The received data further characterizes a log of the request for the first virtual resource. The log includes the first address and a second address of the first virtual resource. A mapping between the first address of the software service and the second address of the first virtual resource is determined using the received data. The mapping between the first address of the software service and the second address of the first virtual resource is provided. Related apparatus, systems, techniques and articles are also described.

Abstract: Data characterizing a log of requests by a plurality of software services executing based on a virtual resource that is within a remote computing environment is received. The executing includes transmitting the requests for utilization of the virtual resource. A metric of utilization of the virtual resource by a first software service of the plurality of software services is determined based on the log. The metric of utilization characterizes a portion of total usage of the virtual resource that is attributable to the first software service. The metric of utilization is provided. Related apparatus, systems, techniques and articles are also described.

Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.

Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.

Abstract: The systems and methods described herein determine metrics of cardiac or vascular performance, such as cardiac output, and can use the metrics to determine appropriate levels of mechanical circulatory support to be provided to the patient. The systems and methods described determine cardiac performance by determining aortic pressure measurements (or other physiologic measurements) within a single heartbeat or across multiple heartbeats and using such measurements in conjunction with flow estimations or flow measurements made during the single heartbeat or multiple heartbeats to determine the cardiac performance, including determining the cardiac output. By utilizing a mechanical circulatory support system placed within the vasculature, the need to place a separate measurement device within a patient is reduced or eliminated. The system and methods described herein may characterize cardiac performance without altering the operation of the heart pump (e.g., without increasing or decreasing pump speed).

Abstract: The systems and methods described herein determine metrics of cardiac performance via a mechanical circulatory support device and use the cardiac performance to calibrate, control and deliver mechanical circulatory support for the heart. The systems include a controller configured to operate the device, receive inputs indicative of device operating conditions and hemodynamic parameters, and determine vascular performance, including vascular resistance and compliance, and native cardiac output. The systems and methods operate by using the mechanical circulatory support device (e.g., a heart pump) to introduce controlled perturbations of the vascular system and, in response, determine heart parameters such as stroke volume, vascular resistance and compliance, left ventricular end diastolic pressure, and ultimately determine native cardiac output.

Abstract: A method, system and computer program product are provided. A computing system collects information related to a patient's preparation for a medical procedure and provides information regarding the medical procedure and a medical condition of the patient to at least one member of a medical procedure team. Data pertaining to performance of the medical procedure in an operating room is collected from multiple sensors. Progress of the medical procedure is monitored in real time by analyzing the collected data, a procedure reference library, and a physician history to determine a status of the medical procedure. A schedule of one or more subsequent medical procedures for the operating room is adjusted in real time based on the monitored progress. Notifications of the adjusted schedule may be transmitted to participants of the one or more subsequent medical procedures.

Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.

Abstract: The present disclosure includes a combination sensor and pressure relief valve. The combination sensor and valve may be used with existing aircraft wheel systems. Wheel systems utilizing the combination sensor and valve are also disclosed.

Abstract: What is described is a tire pressure sensor for use in a wheel of aircraft landing gear. The tire pressure sensor includes a position sensor configured to detect a movement of the wheel and generate a wheel movement signal based on the movement. The tire pressure sensor also includes a processor coupled to the position sensor. The processor is configured to receive the wheel movement signal, determine a wheel rotational speed of the wheel based on the wheel movement signal and generate a wheel rotational speed signal based on the wheel rotational speed.

Abstract: A wheel monitoring system comprising a wheel, a bearing mechanically coupled to the wheel, an axle mechanically coupled to the bearing, and a wheel speed transducer (WST) disposed in the axle. The WST may be configured to detect vibrations. A method of monitoring a bearing is also provided and may comprise measuring a vibration of the bearing, comparing the vibration of the bearing to a predetermined vibration, and estimating a remaining useful life of the bearing.

Abstract: A connector assembly includes a first side connector and a second side connector. The first side connector includes a first protective housing, a first inductor including a first end face, and a first physical connector element. The second side connector includes a second protective housing, a second inductor including a second face, and a second physical connector element. The second physical connector element is engaged with the first physical connector element and physically connects the first side connector to the second side connector such that the first end face and the second end face are adjacent. The first inductor and the second inductor are axially spaced apart. The first inductor and the second inductor form an inductive telemetry connection between the first side connector and the second side connector.