摘要:
A cuvette holder is provided to allow a flow cell optical analyzer to be adapted for coagulation analysis. The flow cell analyzer has a light source and a photo detector defining a first and a second end of an optical path, a vacuum source for drawing a liquid sample through a flow cell positioned in the optical path so that light from the light source passes through the sample, and means for analyzing data collected at the photo detector. The coagulation analyzer has a light source and a photo detector defining the respective ends of an optical path, a cuvette containing a liquid sample positioned in the optical path for passage of light from the light source through the liquid sample, a means for agitating the liquid sample and a means for analyzing data collected at the photo detector. The adaptation is achieved by removing the flow cell and replacing the flow cell with a cuvette holder comprising an opening for receiving and holding the cuvette in the light path and communicating the vacuum source to the cuvette holder, the means for agitating provided by a magnetic stirring bar in the cuvette, the stirring bar being magnetically coupled to a rotor rotatably mounted in a rotor housing below the cuvette and having a permanent magnet mounted on a top surface thereof, wherein the rotor is rotated in the rotor housing by an air pressure differential in the rotor housing created by the communication of the vacuum source to the cuvette holder.
摘要:
A completion tool for gravel pack and frac pack operations for installing a sump packer and perforating a casing in one trip of a work string. The completion tool is disposed on the end of a work string and includes a perforating gun and a packer attached to the distal end of the completion tool by a coupling. The coupling is such that once the packer is set, the rest of the completion tool can be detached from the packer. After detachment, the completion tool can be repositioned to fire the perforating gun. Positioning of the packer and perforating gun may be accomplished by correlating off of other equipment or by use of logging-while-drilling or measurement-while-drilling equipment incorporated into the completion tool.
摘要:
A resuscitation system for use by a rescuer for resuscitating a patient, comprising at least two high-voltage defibrillation electrodes, a first electrical unit comprising circuitry for providing resuscitation prompts to the rescuer, a second electrical unit separate from the first unit and comprising circuitry for providing defibrillation pulses to the electrodes, and circuitry for providing at least one electrical connection between the first and second units. In another aspect, at least two electrical therapy electrodes adapted to be worn by the patient for extended periods of time, circuitry for monitoring the ECG of the patient, an activity sensor adapted to be worn by the patient and capable of providing an output from which the patient's current activity can be estimated, and at least one processor configured for estimating the patient's current activity by analyzing the output of the activity sensor, analyzing the ECG of the patient, and determining whether electrical therapy should be delivered to the electrodes.
摘要:
An apparatus and method for resuscitating a patient suffering from cardiac arrest or another condition in which normal circulation has been interrupted. A ventilator is used for delivering a gas mixture to the patient. The ventilator is configured to adjust the partial pressure of CO2 to one or more partial pressures high enough to slow expiration of CO2 from the patient's lungs and thereby maintain a reduced pH in the patient's tissues for a period of time following return of spontaneous circulation.
摘要:
A computer-implemented method of recording the times of events related to the medical care delivered to patient, and for integrating those times to provide a patient history, including recording a first time of occurrence of a first event, recording first clock information characterizing a first time source from which the first time of occurrence was obtained, recording a second time of occurrence of a second event, recording second clock information characterizing a second time source from which the second time of occurrence was obtained, wherein the first time source and the second time source are independent of one another and not synchronized with one another, transferring recorded data so that the first time of occurrence, first clock information, second time of occurrence, and second clock information are accessible at a computer; and producing a patient history using at least the first and second times of occurrence.
摘要:
A method of analyzing a physiological (e.g., an ECG) signal during application of chest compressions. The method includes acquiring a physiological signal during application of chest compressions; acquiring the output of a sensor from which information on the velocity of chest compressions can be determined; and using the information on the velocity to reduce at least one signal artifact in the physiological signal resulting from the chest compressions.
摘要:
An apparatus for placing spheres at predetermined positions on a substrate. The apparatus includes a platform to support the substrate at a first sphere placement position in the apparatus, and a placement station disposed above the platform that places spheres at locations on the substrate. The placement station includes a first container having a chamber to contain spheres, and a first carrier tray having a substantially horizontal upper surface that forms a lower surface of the chamber. The upper surface has a first section and a second section, the second section having a plurality of holes formed therein to receive spheres. The first carrier tray is movable to position the second section between a fill position beneath the first container and a place position disposed over the first sphere placement position. The placement station is constructed and arranged to fill the plurality of holes with spheres when the second section is in the fill position, and place the spheres at the predetermined positions on the substrate when the second section is in the place position.
摘要:
Optical alignment for piston driven chest compression devices optimizes the application of chest compressions to a fixed location on a subject's chest and provides information regarding the depth and frequency of chest compressions. The targeting system records and may display some telemetry corresponding to any movement or “walking” away from the selected compression site as well as the depth and frequency of compressions. The targeting system is interconnected to the compression device controller and the targeting system provides warnings to operators if the compression components contact the subject outside a preset warning limit away from the selected compression site. The targeting system may also halt the compression device if the site of contact between the compression components and the subject is located outside a preset absolute limit.
摘要:
A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising transforming one or more time domain electrocardiogram (ECG) signals into a frequency domain representation comprising a plurality of discrete frequency bands, combining the discrete frequency bands into a plurality of analysis bands, wherein there are fewer analysis bands than discrete frequency bands, determining the content of the analysis bands, and determining the type of treatment based on the content of the analysis bands.
摘要:
Electrodes and circuitry for monitoring and stimulating the exterior of the human body, comprising delivering stimulation pulses to stimulation electrodes applied to the exterior of the body, detecting an electrical potential at monitoring electrodes applied to the exterior of the body, positioning at least a first and second monitoring electrode at locations at which an electrical artifact caused by the electrical stimulation pulses is substantially cancelled in a signal formed from the electrical potentials detected at the first and second monitoring electrodes.