Abstract: Methods and systems are provided for wirelessly communicating between a host device and a client device in a radio frequency (RF) environment. In one embodiment, a wireless communication method for a host device in a RF environment may comprise: communicating wirelessly between the host device and a client device by way of a first RF channel; continuously scanning available RF channels of the RF environment; and in response to a first RF channel signal quality decreasing below a threshold signal quality, selecting one of the available RF channels having a signal quality greater than the threshold signal quality, and switching wireless communication between the client device and the host device from the first RF channel to the selected available RF channel. In this way, reducing interference with the RF environment while lowering a risk of disrupting the wireless communication between the host device and the client device can be achieved.

Abstract: Methods and systems are provided for wirelessly communicating between a host device and a client device in a radio frequency (RF) environment. In one embodiment, a wireless communication method for a host device in a RF environment may comprise: communicating wirelessly between the host device and a client device by way of a first RF channel; continuously scanning available RF channels of the RF environment; and in response to a first RF channel signal quality decreasing below a threshold signal quality, selecting one of the available RF channels having a signal quality greater than the threshold signal quality, and switching wireless communication between the client device and the host device from the first RF channel to the selected available RF channel. In this way, reducing interference with the RF environment while lowering a risk of disrupting the wireless communication between the host device and the client device can be achieved.

Abstract: A method for determining a blood pressure characteristic, such as SPV and/or PPV of a patient supplied with breathing gases from a mechanical ventilator does not require breathing gas waveforms. An amount of blood pressure data that is at least substantially equal in time to the duration of a breath of the patient is selected. The selection of the amount is not limited to one defined by the commencement or conclusion of a breath of the patient. Preferably blood pressure data in an amount corresponding to the unit of time used to express a respiratory rate is employed and the amount is divided into segments equal in number to the breath number of the respiratory rate. Each of the segments will contain data from a respiratory cycle of the patient although the data for one of the inspiratory/expiratory phases of the respiratory cycle may comprise complementary portions from two successive inspiratory or expiratory phases included in the segment.

Abstract: A patient support and software evaluate spinal instability by controlled isocentric rotation of the spine and measurement of rotation among vertebra to detect damaged vertebra having disproportionately large rotations.

Abstract: An impedance variation respiration monitor determines the variation in human body impedance between two electrodes coupled to the surface of the body. One of the two electrodes is attached to the thorax below the armpit and the other of the two electrodes is attached to the leg extending from the opposing side of the thorax. The variation in impedance between these two electrodes measured by the monitor is closely correlated to the respiration rate of the subject and is particularly responsive to and indicates combined abdominal and thoracic breathing.