Abstract: Methods and devices are provided for diagnosing performance of a gastric restriction system. In general, the methods and devices can enable patients, health care providers, and others to use pressure data as a feedback mechanism to monitor efficacy of an implantable restriction device and to identify, train, and/or prescribe treatment plan options. Pressure data monitoring can be used locally and/or remotely to monitor a restriction in a patient and compare gathered pressure data with a typical pressure of the restriction. Based on the results of the comparison, possible problems related to the patient and the restriction can be identified and diagnosed with possible cause(s) and solution(s). Notice of any detected possible problems, causes, and/or solutions can be provided to a user.

Abstract: Methods and devices are provided for predicting performance of a restriction system for a patient. In general, the methods and devices can allow detection and prediction of a trajectory of a particular patient attribute, such as weight loss. Using previously gathered data values, data values defining a future outcome can be predicted and compared with a desired future outcome. If the future outcome deviates from the desired future outcome, one or more corrective actions can be suggested to a patient and/or a health care provider to help align the patient's treatment plan with the desired future outcome rather than the currently predicted future outcome.

Abstract: Methods and devices are provided for gathering impedance data related to implantable restriction devices. In general, the methods and devices can enable patients, health care providers, and others to use gathered data as a feedback mechanism to non-invasively monitor efficacy of an implantable restriction device in a patient and to identify, modify, and/or prescribe a treatment plan for the patient considering the gathered data. Impedance data can be gathered and analyzed for tissue proximate to the restriction device, e.g., a fat pad between a gastric band and the patient's stomach. Electrodes in contact with the tissue can measure an impedance of the tissue, with the impedance between the electrodes changing as the tissue reduces in size (e.g., as fat cells shrink) and/or changes configuration.

Abstract: Methods and devices are provided for handling data in an implantable restriction system. In general, the methods and devices allow collection, analysis, storage, and transmission of pressure measurements. Pressure measurement data can be compressed before storing it. Additionally, not all pressure data need be recorded or retained, such as data substantially equaling a resting or nominal pressure of an implantable restriction device indicative of little to no pressure variation and data indicative of isolated, non-recurring events. Any pressure measurement data that is recorded can be transmitted to an external device using power telemetrically provided by the external device.

Abstract: Methods and devices for optimizing the operation of a restriction system for forming a restriction in a patient are disclosed. In one exemplary embodiment, a method for optimizing the operation of a gastric restriction system includes providing an implantable restriction system for forming a restriction in a patient, determining an optimum value of a control parameter of the restriction system, and maintaining the control parameter at the optimum value such that a result parameter of the restriction system is substantially convergent as a function of time. Determining an optimum value of a control parameter can generally include adjusting the restriction device, determining the value of the control parameter to be optimized, and repeating the steps of adjusting the restriction device and determining the value of the control parameter until the control parameter is substantially convergent as a function of time.

Abstract: Various wearable elements are provided for a more comfortable and efficient way of carrying external devices related to powering and monitoring an implantable restriction device. In one exemplary embodiment, a system for forming a restriction in a patient is provided and includes an implantable restriction device adapted to form a restriction in a patient and having an implantable communicating member configured to send and/or receive a wireless signal. The system can further include a wearable element configured to be worn by a patient and an external device coupled to the wearable element which is configured to send and/or receive a wireless signal to communicate with the implantable communicating member.

Abstract: Various exemplary methods are disclosed for implanting a restriction device for forming a restriction in a patient. The methods can be used with a variety of restriction devices, but in an exemplary embodiment the methods are used for implanting a gastric restriction device.

Abstract: A bed having a frame, a deck, and a communication network and at least one module. The at least one module includes a charting module.

Abstract: A remotely controlled gastric band system that is practically immune to external magnetic fields, such as from a Magnetic Resonance Imaging (MRI) machine, incorporates a bi-directional pump and fluid reservoir to adjust fluid volume for hydraulic control of a gastric band. A piezoelectric driver (e.g., rotary actuator, linear actuator) selectively compresses and expands a metal bellows hermetically sealed within a biocompatible and nonferromagnetic enclosure or case such as titanium. Directly sensing a position of the metal bellows yields an accurate reading of volume contained therein, allowing for closed-loop control of the gastric band.

Abstract: An implantable artificial sphincter system provides long-term adjustment via transcutaneous energy transfer (TET), minimizing invasive adjustment through adding or removing fluid via a syringe. An infuser device provides bi-directional fluid transfer via a flexible conduit to a sphincter band, such as a gastric band, by a combination of thermodynamic actuation and a piezo-electrically disengaged drum brake assembly that thereby achieves a desirable small volume device. A propellant within a propellant cavity surrounds a metal bellows accumulator biased at body temperature to either expand or collapse the bellows accumulator with the opposite direction of movement effected by a thermal element that heats in combination with a negatively-biased propellant or cools in combination with a positively-biased propellant.

Abstract: An implantable artificial sphincter system provides long-term adjustment via transcutaneous energy transfer (TET), minimizing invasive adjustment through adding or removing fluid via a syringe. An infuser device provides bi-directional fluid transfer via a flexible conduit to a sphincter band, such as a gastric band, by a combination of thermodynamic actuation and a piezo-electrically disengaged drum brake assembly that thereby achieves a desirable small volume device. A propellant within a propellant cavity surrounds a metal bellows accumulator biased at body temperature to either expand or collapse the bellows accumulator with the opposite direction of movement effected by a thermal element that heats in combination with a negatively-biased propellant or cools in combination with a positively-biased propellant.

Abstract: A bed including a frame, a deck, a siderail, a communication network and a graphic caregiver interface module. The graphic caregiver interface module includes an input device, a control circuit, a memory, and a display.

Abstract: A bed having a frame, a deck, and a siderail. The deck having a head seat and foot sections. The head, seat, and foot sections movable relative to each other.

Abstract: A method is provided for permitting a module which is configured to perform a dedicated function on a bed to use a graphical interface. Graphic format data used by the module is downloaded, if necessary, and stored in a memory of the graphical interface.

Abstract: A bed includes a base frame, a deck coupled to the base frame for supporting a body, a peer-to-peer communication network having a plurality of connection points, and a plurality of modules. Each module is electrically coupled to a selected connection point of the peer-to-peer communication network. Each module is configured to perform a dedicated function during operation of the bed, and each module is configured to communicate over the peer-to-peer communication network with selected other modules.

Abstract: A chair bed for supporting a person is provided, the chair bed having a head end, a foot end, and opposing sides. The chair bed includes a frame and a deck supported on the frame. The deck includes head, seat, and foot sections. A mattress is mounted on the deck and has an upwardly-facing patient surface. The mattress also has head, seat, and foot portions corresponding, respectively, to the head, seat, and foot sections of the deck. The head section of the deck and the mattress portion thereon is pivotable from a generally horizontal down position through various positions upwardly to a back-support position. A pair of side rails is mounted on each side of the chair bed. Each pair of side rails includes a body section side rail mounted to move with the deck seat section and extending laterally adjacent the deck head and seat sections and a head section side rail mounted to move with the deck head section relative to the body section side rail and extending adjacent only the deck head section.

Abstract: A bed including a frame, an articulating deck on the frame having head, seat, and foot deck sections, and a mattress on the deck. The deck foot section and mattress foot portion have a first length when the foot section is in the up position and a second length shorter than said first length when the foot section is in the down position. A first driver varies the length of the deck foot section, and a second driver moves the foot section relative to said seat section between the generally horizontal up position and the generally vertically downwardly extending down position.

Abstract: A bed includes a base frame, a deck coupled to the base frame for supporting a body, a peer-to-peer communication network having a plurality of connection points, and a plurality of modules. Each module is electrically coupled to a selected connection point of the peer-to-peer communication network. Each module is configured to perform a dedicated function during operation of the bed, and each module is configured to communicate over the peer-to-peer communication network with selected other modules.

Abstract: A chair bed for supporting a person is provided, the chair bed having a head end, afoot end, and opposing sides. The chair bed includes a frame and a deck supported on the frame. The deck includes head, seat, and foot sections. A mattress is mounted on the deck and has an upwardly-facing patient surface. The mattress also has head, seat, and foot portions corresponding, respectively, to the head, seat, and foot sections of the deck. The head section of the deck and the mattress portion thereon is pivotable from a generally horizontal down position through various positions upwardly to a back-support position. A pair of side rails is mounted on each side of the chair bed. Each pair of side rails includes a body section side rail mounted to move with the deck seat section and extending laterally adjacent the deck head and seat sections and a head section side rail mounted to move with the deck head section relative to the body section side rail and extending adjacent only the deck head section.

Abstract: A bed including a frame, an articulating deck on the frame having head, seat, and foot deck sections, and a mattress on the deck. The deck foot section and mattress foot portion have a first length when the foot section is in the up position and a second length shorter than said first length when the foot section is in the down position. A first driver varies the length of the deck foot section, and a second driver moves the foot section relative to said seat section between the generally horizontal up position and the generally vertically downwardly extending down position.