Abstract: A wearable cardioverter defibrillator system includes a support structure that a patient can wear. The system also includes electrodes that contact the patient, and define two or more channels from which ECG signals are sensed. A processor may evaluate the channels by analyzing their respective ECG signals, to determine which contains less noise than the other(s). The analysis can be by extracting statistics from the ECG signals, optionally after first processing them, and then by comparing these statistics. These statistics may include tall peak counts, amplitudes of peaks compared to historical peak amplitudes, signal baseline shift, dwell time near a baseline, narrow peak counts, zero crossings counts, determined heart rates, and so on. Once the less noisy signal is identified, its channel can be followed preferentially or to the exclusion of other channels, for continuing monitoring and/or determining whether to shock the patient.

Abstract: A wearable medical includes a walking detector module with a motion sensor that is configured to detect when the patient is walking or running. In embodiments, a parameter (referred to herein as a “Bouncy” parameter) is determined from Y-axis acceleration measurements. In some embodiments, the Bouncy parameter is a measurement of the AC component of the Y-axis accelerometer signal. This detection can be used by the medical device to determine how and/or whether to provide treatment to the patient wearing the medical device. For example, when used in a WCD, the walking detector can prevent “false alarms” because a walking patient is generally conscious and not in need of a shock.

Abstract: A refrigerant management system controls the supply of refrigerant from two or more variable speed and fixed speed compressors to a plurality of cryogenic refrigerators. The system employs a plurality of sensors to monitor and regulate the overall refrigerant supply to deliver an appropriate refrigerant supply to each of the cryogenic refrigerators. The amount of refrigerant to supply is based on an aggregate demand for refrigerant from the plurality of cryogenic refrigerators and a refrigerant correction metric. An appropriate supply of refrigerant is distributed to each cryogenic refrigerator by adjusting the speed of the variable speed compressors or, alternatively, selectively turning the compressors on or off. The speed of the variable speed compressors is adjusted by determining an amount of refrigerant to supply to the plurality of cryogenic refrigerators.

Abstract: A cryopump includes a refrigerator with at least first and second stages. A radiation shield surrounds the second stage and is in thermal contact with the first stage. The radiation shield includes a drain hole to permit cryogenic fluid to traverse through the drain hole during regeneration. The cryopump also includes a primary pumping surface supporting adsorbent in thermal contact with the second stage. The second stage array assembly includes a primary condensing surface, protected surfaces having adsorbent, and non-primary condensing surfaces. A baffle is disposed over the drain hole. The baffle redirects gas from an annular space disposed between the radiation shield and the vacuum vessel that attempts to traverse through the drain hole to prevent the gas from condensing on a non-primary condensing surface. The baffle directs gas to condense on the primary condensing surface.

Abstract: An overhead hoist transport vehicle comprising: an overhead hoist; a translating stage; and a gripper coupled to the translating stage, the gripper being configured to grip a material unit; wherein the overhead hoist is configured to transport the material unit to one of a load port and a storage location by performing operations comprising: the overhead hoist being configured to vertically move the gripper to the load port and the storage location; and the translating stage being configured to horizontally move the overhead hoist to the load port and the storage location; and wherein the load port is beneath an overhead rail; and wherein at least a portion of the storage location is disposed lateral to the overhead rail.

Abstract: A refrigerant management system controls the supply of refrigerant from two or more variable speed and fixed speed compressors to a plurality of cryogenic refrigerators. The system employs a plurality of sensors to monitor and regulate the overall refrigerant supply to deliver an appropriate refrigerant supply to each of the cryogenic refrigerators. The amount of refrigerant to supply is based on an aggregate demand for refrigerant from the plurality of cryogenic refrigerators and a refrigerant correction metric. An appropriate supply of refrigerant is distributed to each cryogenic refrigerator by adjusting the speed of the variable speed compressors or, alternatively, selectively turning the compressors on or off. The speed of the variable speed compressors is adjusted by determining an amount of refrigerant to supply to the plurality of cryogenic refrigerators.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A refrigerant management system controls the supply of refrigerant from two or more variable speed and fixed speed compressors to a plurality of cryogenic refrigerators. The system employs a plurality of sensors to monitor and regulate the overall refrigerant supply to deliver an appropriate refrigerant supply to each of the cryogenic refrigerators. The amount of refrigerant to supply is based on an aggregate demand for refrigerant from the plurality of cryogenic refrigerators and a refrigerant correction metric. An appropriate supply of refrigerant is distributed to each cryogenic refrigerator by adjusting the speed of the variable speed compressors or, alternatively, selectively turning the compressors on or off. The speed of the variable speed compressors is adjusted by determining an amount of refrigerant to supply to the plurality of cryogenic refrigerators.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: Cryopump components are improved using thin layer heating elements for temperature control or to serve as heaters. These heating elements may be located and prevent pooling during regeneration. The temperature control may also be achieved through the use of ceramic heating elements. The ceramic heating elements may also include a second function of structural support within the cryopump. Temperature control may further be achieved via the radiation shield, where the radiation shield includes a clad sheeting or coating.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A vacuum network control system includes a plurality of nodes configured for control over operational processes of the system. The plural nodes are configured, in a network ring or other topology, as a selectable master node for controlling the operational processes. Control can be distributed among, and passed between, each of the nodes. Each node on the network monitors adjacent network connectors to detect a fault in the network. In response to a detected fault, a disconnect is mapped to the fault, and the network topology is reconfigured for continued communication among the nodes and with external devices.

Abstract: A refrigerant management system controls the supply of refrigerant from two or more variable speed and fixed speed compressors to a plurality of cryogenic refrigerators. The system employs a plurality of sensors to monitor and regulate the overall refrigerant supply to deliver an appropriate refrigerant supply to each of the cryogenic refrigerators. The amount of refrigerant to supply is based on an aggregate demand for refrigerant from the plurality of cryogenic refrigerators and a refrigerant correction metric. An appropriate supply of refrigerant is distributed to each cryogenic refrigerator by adjusting the speed of the variable speed compressors or, alternatively, selectively turning the compressors on or off. The speed of the variable speed compressors is adjusted by determining an amount of refrigerant to supply to the plurality of cryogenic refrigerators.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: An overhead hoist transport vehicle comprising: an overhead hoist; a translating stage; and a gripper coupled to the translating stage, the gripper being configured to grip a material unit; wherein the overhead hoist is configured to transport the material unit to one of a load port and a storage location by performing operations comprising: the overhead hoist being configured to vertically move the gripper to the load port and the storage location; and the translating stage being configured to horizontally move the overhead hoist to the load port and the storage location; and wherein the load port is beneath an overhead rail; and wherein at least a portion of the storage location is disposed lateral to the overhead rail.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.