Abstract: A dual chamber LP system includes an aLP and a vLP that collectively provide AAI+VVI operation, and selectively transition from the AAI+VVI operation to collectively providing coordinated dual chamber operation (e.g., DDD operation, but not limited thereto), and vice versa. While providing the AAI operation, the aLP performs atrial pacing when an intrinsic atrial event is not detected within a specified AA interval, performs atrial sensing, and inhibits the atrial pacing when the intrinsic atrial event is detected within the specified AA interval. While providing the VVI operation, the vLP performs ventricular pacing when an intrinsic ventricular event is not detected within a specified VV interval, performs ventricular sensing, and inhibits the ventricular pacing when the intrinsic ventricular event is detected within the specified VV interval.

Abstract: An implantable cardiac stimulation device provides bichamber pacing. In accordance with a first embodiment, the device varies the interchamber pacing delay responsive to either sensed intrinsic activity or sensor measured activity of the patient. In another embodiment, the device times separate and independent AV intervals for providing pacing pulses to the right and left chambers.

Abstract: A fetal electrode sleeve and wire interconnect system for transmitting signals indicative of fetal heart rate from a fetus inside a mother through a cable to a monitor external to the mother. The system includes a holder having a fetal spiral electrode on one end and a maternal reference electrode on its opposite end. A safety cap has a retention groove, a grip, a tip with a recessed end opposite the grip, and a conductive sleeve. The conductive sleeve has a first end enclosed by the grip, a second end enclosed by the tip, and an intermediate exposed portion enclosed by neither the grip nor the tip.

Abstract: The combination of a pressure control and a catheter including an elongate member, a sensor mounted on the catheter and adapted to be placed in pressure engagement with tissue for sensing signals resulting from physiological phenomena and an expandable member mounted on the elongate member for maintaining the sensor in contact with the tissue. A pressure source is connected to the expandable member for maintaining the expandable member inflated and a pressure controller coupled to the expandable member for maintaining the contact pressure between the sensor and the tissue within preselected limits.

Abstract: A disposable electrode assembly for contacting a patient and for receiving electrical signals from at least one remotely located electrode, the remotely located electrode having leads. The electrode assembly has a thin, flexible, leg plate with a bottom surface contacting the patient without adhesive. At least two triangular-shaped springs are carried by the leg plate for electrically and mechanically connecting the leads from the remotely located electrode to the leg plate. At least two latches, each adapted to snap over one of the triangular-shaped springs, provide an audio indication of flap closure and keep a flap closed over each of the triangular-shaped springs. A reference electrode electrically contacts the patient through a skin-contacting surface when the electrode assembly is secured to the patient. The reference electrode is electrically coupled to, but mechanically decoupled from, the leg plate. Separate, insulated wires electrically engage the springs and the reference electrode.