Abstract: A compact jumper for an infant or young child. The compact jumper includes a support frame, at least one resilient member, and a child-receiving apparatus. The support frame is configured for resting on a support surface and the at least one resilient member is coupled to a portion of the support frame. The child-receiving apparatus is supported by the at least one resilient member and is guided by a portion of the support frame. The child-receiving apparatus is movable with respect to the support surface as the child moves and jumps.

Abstract: A collapsible, portable infant swing having a foldable base movable between an unfolded, extended position and a folded, collapsed position, a lock mechanism for selectively locking/unlocking the foldable base, and support arms supported by the foldable base. Swing arms are pivotally coupled to the support arms for pivotal, back and forth motion and an infant support seat coupled to the swing arms for supporting and swinging an infant. A multi-function handle is provided for housing the lock mechanism for locking/unlocking the foldable base, for grasping the foldable base to fold the foldable base, and for carrying the swing when the foldable base is folded. The multi-function handle is positioned substantially centrally below the seat to make it generally inaccessible by the infant.

Abstract: In specific embodiments, a method to monitor pulmonary edema of a patient, comprises (a) detecting, using an implanted posture sensor, when a posture of the patient changes from a first predetermined posture to a second predetermined posture, (b) determining an amount of time it takes an impedance signal to achieve a steady state after the posture of the patient changes from the first predetermined posture to the second predetermined posture, where the impedance signal is obtained using implanted electrodes and is indicative of left atrial pressure and/or intra-thoracic fluid volume of the patient, and (c) monitoring the pulmonary edema of the patient based on the determined amount of time it takes the impedance signal to achieve the steady state after the posture of the patient changes from the first predetermined posture to the second pre-determined posture.

Abstract: Particular infant support or nursing pillows are disclosed, for supporting an infant in a variety of settings by providing a stable surface upon which to rest. Various embodiments include a generally crescent shaped device, including a resilient fill material surrounded by a fabric shell and having a top and a bottom surface connected by a band of uniform width extending vertically and wholly about the perimeter of the pillow. The support pillow may be combined with an accessory device to form a support pillow assembly. An attachment mechanism may be configured to attach the accessory device to the support pillow such that the accessory device is arranged to direct a perceptible effect to at least one of the first arm, the second arm, and the medial region of the support pillow.

Abstract: A new model is provided for understanding and exploiting impedance or admittance values measured by implantable medical devices, such as pacemakers or cardiac resynchronization devices (CRTs.) The device measures impedance along vectors extending through tissues of the patient between various pairs of electrodes. The device then converts the vector-based impedance measurements into near-field individual electrode-based impedance values. This is accomplished, in at least some examples, by converting the vector-based impedance measurements into a set of linear equations to be solved while ignoring far-field contributions to the impedance measurements. The device solves the linear equations to determine the near-field impedance values for the individual electrodes, which are representative of the impedance of tissues in the vicinity of the electrodes.

Abstract: Techniques are provided for assessing left atrial pressure (LAP) based on atrial electrocardiac signal parameters, particularly intra-atrial conduction delay (IACD) and P-wave duration. In one example, a pacemaker or other implantable device senses an intracardiac electrogram (IEGM) or a subcutaneous electrocardiogram (ECG), from which IACD and P-wave duration are derived. The device tracks changes, if any, in the parameters. A significant increase in either IACD or P-wave duration is associated with an increase in LAP. In some examples, conversion factors are calibrated for use with a particular patient to relate IACD and/or P-wave duration values to LAP values to provide an estimate of actual LAP. The conversion factors are pre-calibrated using LAP measurements obtained using a wedge pressure sensor. In other examples, IACD and P-wave duration are instead used to confirm the detection of an elevation in LAP initially made using impedance signals. Other confirmation parameters are described as well.

Abstract: Techniques are provided for detecting pulmonary congestion based on an increase in right ventricular (RV) stroke volume over left ventricular (LV) stroke volume. In one example, the device generates an index based on accumulated differences between RV stroke volume and LV stroke volume while RV stroke volume exceeds LV stroke volume, such that the index is indicative of an ongoing imbalance between RV and LV stroke volume. The index is compared to a suitable threshold to detect a severe imbalance indicative of pulmonary edema. Additionally, techniques are described for estimating RV and LV stroke volumes based on pulmonary artery pressure, left atrial pressure, aortic pressure, LV strain or on various intracardiac or extracardiac impedance measurements.

Abstract: A motion device that provides a soothing motion for a child seated within the device to replicate a parent or caregiver cradling and/or swaying the child. Embodiments include a base frame configured to rest on a support surface, a support frame coupled to and extending upward from the base frame, and a seat assembly which is pivotably coupled to the support frame. The seat assembly moves in an oscillating motion about the pivot axis, which is selectively propelled by a drive mechanism or motor. The drive mechanism or motor is coupled to and/or is integral to the assembly and its speed and motion is controlled electronically. The pivot axis about which the seat assembly rotates is preferably configured to be at least slightly offset from the vertical axis, such that the seat assembly will “self-center” when at rest.

Abstract: A collapsible, portable infant swing having a foldable base movable between an unfolded, extended position and a folded, collapsed position, a lock mechanism for selectively locking/unlocking the foldable base, and support arms supported by the foldable base. Swing arms are pivotally coupled to the support arms for pivotal, back and forth motion and an infant support seat coupled to the swing arms for supporting and swinging an infant. A multi-function handle is provided for housing the lock mechanism for locking/unlocking the foldable base, for grasping the foldable base to fold the foldable base, and for carrying the swing when the foldable base is folded. The multi-function handle is positioned substantially centrally below the seat to make it generally inaccessible by the infant.

Abstract: Various techniques are provided for assessing the reliability of left atrial pressure (LAP) estimates made by an implantable medical device based on impedance values or related electrical values. In one example, various cardioelectric and cardiomechanical parameters are used to corroborate LAP estimation in circumstances where the LAP estimates deviate from an acceptable, satisfactory or otherwise healthy range. The cardioelectric parameters include, e.g.: ST elevation; heart rate (HR); heart rate variability (HRV); T-wave alternans (TWA); QRS waveform parameters; P-wave duration; evoked response (ER) parameters; and intrinsic PV/AV/VV conduction delays. The cardiomechanical parameters include, e.g.: heart rate turbulence (HRT); cardiogenic impedance signals; heart sounds; and non-LAP blood pressure measurements, such as aortic pressure measurements.

Abstract: Particular infant support or nursing pillows are disclosed, for supporting an infant in a variety of settings by providing a stable surface upon which to rest. Various embodiments include a generally crescent shaped device, including a resilient fill material surrounded by a fabric shell and having a top and a bottom surface connected by a band of uniform width extending vertically and wholly about the perimeter of the pillow. The support pillow may be combined with an accessory device to form a support pillow assembly. An attachment mechanism may be configured to attach the accessory device to the support pillow such that the accessory device is arranged to direct a perceptible effect to at least one of the first arm, the second arm, and the medial region of the support pillow.

Abstract: Various techniques are provided for use with an implantable medical device for estimating cardiac pressure within a patient based on admittance (or related electrical values such as impedance or conductance) that takes into account the presence of acute MR within the patient. Briefly, the device detects an indication of acute MR, if occurring within the patient. The device also applies electrical fields to tissues of the patient and measures electrical parameters influenced by the electrical field, such as admittance, impedance or conductance. The device then estimates cardiac pressure within the patient based on the measured electrical parameter and the indication of acute MR. In one example, different linear correlation functions are used to convert admittance values to left atrial pressure (LAP) values depending upon the presence or absence of acute MR within the patient.

Abstract: Various techniques are provided for use with an implantable medical device for exploiting near-field impedance/admittance. Examples include techniques for assessing heart chamber disequilibrium, detecting chamber volumes and pressures, calibrating near-field-based left atrial pressure (LAP) estimation procedures and for assessing the recovery from injury at the electrode-tissue interface. In one particular example, the implantable device assesses the degree of concordance between the left ventricle (LV) and the right ventricle (RV) by quantifying a degree of scatter between LV and RV near-field admittance values. An increase in RV admittance is indicative of RV failure, an increase in LV admittance is indicative of LV failure, and an increase in both LV and RV admittance is indicative of biventricular failure.

Abstract: Various techniques are provided for use with an implantable medical device for estimating cardiac pressure within a patient based on admittance (or related electrical values such as impedance or conductance) that takes into account the presence of acute MR within the patient. Briefly, the device detects an indication of acute MR, if occurring within the patient. The device also applies electrical fields to tissues of the patient and measures electrical parameters influenced by the electrical field, such as admittance, impedance or conductance. The device then estimates cardiac pressure within the patient based on the measured electrical parameter and the indication of acute MR. In one example, different linear correlation functions are used to convert admittance values to left atrial pressure (LAP) values depending upon the presence or absence of acute MR within the patient.