Abstract:
A blood pressure cuff is defined by a first sheet and a second sheet. The first sheet has a first interior-inflatable surface attached to a second interior-inflatable surface of the second sheet to form an interior-inflatable portion between the first sheet and second sheet. The interior-inflatable portion is in communication with an opening to fluidly interconnect the interior inflatable portion with an exterior of the cuff. A textured surface is included on the second interior-inflatable surface.
Abstract:
A microwave handheld radiometer for measuring subsurface tissue temperature of a subject includes a microwave antenna disposed relative to a handheld radiometer housing and adapted to electromagnetically couple to a skin surface of a subject, a circulator having a first circulator input and a second circulator input, wherein the first circulator input is electrically coupled to said antenna via a microwave feedline. A switch is electrically disposed between the antenna and an microwave feedline, said switch having a calibrate state and a measure state. A noise source, electrically coupled to the circulator, is being configured to provide a first source of thermal noise at a first temperature and a second source of thermal noise at a second temperature, wherein the noise source is switched between the first source and second source upon external command wherein a detector provides an output wherein surface temperature effects are corrected for in the sub-surface measurement.
Abstract:
A medical instrument including a probe adapted to be inserted into an orifice of an animal's body. The instrument includes an emitter of electromagnetic radiation that is sensed by a sensor mounted on the probe. The sensor can then determine, by variations in the amount of radiation received from the emitter, whether a probe cover is mounted over the probe. A sensor can also be used to determine whether the walls of the body orifice block the radiation received from the emitter, thereby indicating position of the sensor, and thus, the probe within the orifice. A special probe cover is disclosed, and methods of using the medical instrument are also disclosed.
Abstract:
A medical instrument including a probe adapted to be inserted into an orifice of an animal's body. The instrument includes an emitter of electromagnetic radiation that is sensed by a sensor mounted on the probe. The sensor can then determine, by variations in the amount of radiation received from the emitter, whether a probe cover is mounted over the probe. A sensor can also be used to determine whether the walls of the body orifice block the radiation received from the emitter, thereby indicating position of the sensor, and thus, the probe within the orifice. A special probe cover is disclosed, and methods of using the medical instrument are also disclosed.
Abstract:
A blood pressure measurement apparatus for use in association with a blood pressure measuring cuff includes a housing having an upper shell and a lower shell defining an interior chamber and a replaceable module disposed within the interior chamber. The replaceable module houses a pump for inflating the blood pressure measuring cuff and a vent valve for venting the blood pressure measuring cuff. A cuff pressure sensor is provided within the interior chamber, either within or externally of the replaceable module. A control circuit for controlling the pump and the vent valve is provided on a circuit board disposed externally of the replaceable module. A power pack may be provided within the replaceable module for supplying electric power to the pump, the valve, the control circuit and other components within the interior chamber.
Abstract:
A method is provided for blood pressure measurement by means of an inflatable cuff (50) applied to a limb of a vertebrate and pneumatically coupled to a first port (112A) and a second port (112B) of a blood pressure measurement apparatus (100). A pump (160) coupled to the second port inflates the cuff pneumatically. During an initial cuff inflation period, a first pressure sensor (180) pneumatically coupled to the first port senses a first pressure and a second pressure sensor (182) pneumatically coupled to the second port senses a second pressure. An analysis module (142) compares the magnitude of the first pressure to the magnitude of the second pressure to determine the relative relationship between the respective magnitudes of the first pressure and the second pressure. The relative relationship between these pressure may be used to determine whether a single lumen or dual lumen cuff is use, to determine whether the blood pressure measurement procedure selected is correct for the cuff actually in use, or to automatically select the proper blood pressure measurement procedure to be used for the actual cuff in use.
Abstract:
The invention is a portable vital signs measurement instrument, systems and methods that provide a variety of measurement capabilities, including blood pressure, temperature, pulse oximetry, and other indications of patient status. The instrument, systems and methods include the ability to communicate wirelessly, for example using Wi-Fi (IEEE 802.11B), with a server, so that information can be entered easily, securely and reliably into a medical database system accessible by way of the server. The systems and methods provide for the instrument to initiate a communication session by attempting to discover a server access point in its vicinity.
Abstract:
The invention is in one embodiment an apparatus and a method for measuring the blood pressure of a vertebrate subject. The apparatus uses an inflatable chamber with a sensor to detect signals indicative of a blood pressure of the subject during an inflation interval of the inflatable chamber. If secondary motion or artifact signals are detected, the apparatus and method determine whether the secondary signals are below a predetermined value, and if so, complete the measurement. If the signals indicate that the measurement is not accurate, the system and method immediately institute a measurement of the blood pressure during a deflation interval, which can include a step deflation interval. In the event that the subject is identified as a neonate, the system and method immediately measure using the deflation interval procedure.
Abstract:
A temperature probe includes a shaft having a distal end, a proximal end, and a tip disposed at the distal end. The probe also includes an infrared sensor configured to measure a temperature of a structure disposed proximate the shaft. The probe further includes a temperature sensor disposed distal to the infrared sensor. The temperature sensor is configured to measure a body cavity temperature of a patient.
Abstract:
A medical device obtains a set of data associated with a patient's non-invasive blood pressure cycle reading, provides a representation of a pulse interval map on the display screen based on the set of data, the pulse interval map including one or more interval data points representing intervals between heat beats, and alerts a caregiver if one or more of the interval data points fall outside an interval bound. The medical device can also plot a pulse volume map on the display screen based on the set of data, the pulse volume map including one more volume data points representing volumes associated with given heat beats, and alert a caregiver if one or more of the volume data points fall outside a volume bound.