Abstract: The invention relates to a monitoring system (1) for monitoring acoustic heart signals, comprising a sensor housing (2) comprising a heart sound sensing element (3) adapted to be arranged in connection to a patient's heart to sense heart sounds and to generate a heart sound signal related to the heart sounds; a monitoring unit housing (4) comprising a processing unit (5) adapted to receive said heart sound signal, wherein said monitoring unit housing (4) is separated from said sensor housing (2) and is adapted to be arranged in relation to the patient's upper sternum, wherein the monitoring system (1) further comprises a flexible elongated connector (6) connecting said sensor housing (2) to said monitoring unit housing (4), said connector (6) having a longitudinal extension along a longitudinal axis (7), wherein said connector (6) is connected to said monitoring unit housing (4) in an angular relationship, and wherein the angle ? between said longitudinal axis (7) and a main axis (8) of said monitoring unit h

Abstract: An exhalation collected in a breath bag capable of expanding and contracting is sucked into a gas inlet vessel 21 with a given volume (Va), and then the gas inlet vessel 21 is communicated by means of valve V2 with a cell 11 that is maintained at an atmospheric pressure by being pre-filled with a sample gas or reference gas. After the communication, the gas pressure is measured by a pressure sensor 16 attached to the cell 11. Whether the exhalation collected in the breath bag is below a given amount or not can be accurately judged.

Abstract: A method, system and computer program product are provided for evaluating whether an oscillometric signal representative of pressure oscillations in the vasculature of a patient is associated with special conditions that may lead to inadvertently identifying the signal as being indicative of peripheral arterial disease or non-analyzable. In one embodiment, the method includes obtaining an oscillometric signal at a location on an extremity of the patient, determining a ratio using a value associated with a first frequency component of the oscillometric signal and a value associated with a second frequency component of the oscillometric signal, comparing the ratio to a threshold value, associating a first diagnostic class with the oscillometric signal when a first outcome results from comparing the ratio to a threshold value, and associating a second diagnostic class with the oscillometric signal when a second outcome results from comparing the ratio to a threshold value.

Abstract: A signal propagation system for communicating timing information comprises a processing resource (300) arranged to generate a first timing signal for communicating the timing information, the first timing signal having a first frequency spectrum associated therewith. An electronic circuit (110) is provided having an input for receiving the timing information. An electrical connection (310) between the processing resource (300) and the electronic circuit (110) is also provided. A signal transformation module (304) for communicating the timing information, and the signal transformation module (304) is arranged to translate the first timing signal into a second timing signal for communicating the timing information. The second timing signal has a second frequency spectrum associated therewith that comprises fewer harmonics than the first timing signal, thereby reducing electromagnetic energy emitted by the electrical connection.

Abstract: A system and method using an inflatable jacket over the compression paddle of a mammography and/or tomosynthesis system to enhance imaging and improve patient comfort in x-ray breast imaging.

Abstract: A blood pressure measurement device is characterized in that the said device is designated to arithmetically apply to the computed blood pressure value a correction value that is in accordance with the difference in atmospheric pressure between the position of the blood pressure transmitting part and the position of the heart of the subject wearing the blood pressure transmitting part as obtained from the sensor signal, on the basis of the internal pressure variation of the blood pressure transmitting part.

Abstract: In an electronic sphygmomanometer, the thickness of the second connection tube is set to be lower than the thickness of the first connection tube, and therefore, even if error has occurred in the structural dimensions of the pressure sensor air tube, the error can be absorbed as a result of the second connection tube extending/contracting. It is therefore possible to provide an electronic sphygmomanometer that includes, in a structure in which a pressure sensor used in the electronic sphygmomanometer is disposed, a peripheral structure for the pressure sensor that can improve the reliability of blood pressure measurement values.

Abstract: Systems, methods, and products for determining indicated blood pressure values and/or characterizing a condition of a patient. The systems, methods, and products are capable of determining indicated blood pressure values in a lower extremity of a patient using an oscillometric technique. An oscillometric signal obtained from the lower extremity of the patient is analyzed, and the patient may be classified into one of a plurality of diagnostic classes. Each diagnostic class may have an associated ratio value. Based on the diagnostic class into which the patient is classified, a selected lower extremity characteristic ratio may be selected. A lower extremity indicated blood pressure value may be obtained by oscillometric processing using the selected ratio. This lower extremity indicated blood pressure value may be used with an upper extremity indicated blood pressure value to perform an extremity blood pressure ratio (EBPR) examination.

Abstract: An apparatus and method for determination of change in volume of a body part or body organ on a real-time basis. In a breastfeeding application, an inflatable cuff is positioned on a nursing breast and allows direct access to the nipple by the breastfeeding infant. The inflatable cuff includes an outer shell portion and an inner inflatable bladder. The pressure in the bladder is monitored regularly by a pressure sensor, during a breastfeeding session. When the pressure drops below a preselected pressure, a controller directs a pump to pump air into the inflatable bladder to maintain the preselected pressure. The volume of added air is monitored during the breastfeeding session. Various calibrations are used to correlate the amount of added air, to the volume of breast milk withdrawn from the breast. The volume of breast milk withdrawn during breastfeeding is calculated and displayed throughout the breastfeeding session.

Abstract: An epidural space locating device is described, comprising a handle with a proximal end and a distal end; a hollow distal chamber attached to the handle distal end and being provided with a distal connector where a spinal needle is received to be introduced in the patient's body, such that there is a fluid connection between the spinal needle and the distal chamber; the device also comprises a plunger running within the distal chamber from a starting position to a final position when there is a pressure loss within the distal chamber due to the spinal needle has reached the epidural space; the plunger is secured before using the device, which emits a warning signal at the time the epidural space has been reached.

Abstract: In a sphygmomanometer for measuring blood pressure according to a volume compensation method, an upper arm V0 equivalent cuff pressure representing a cuff pressure in a state where an inner pressure and an outer pressure of an artery of an upper arm are in equilibrium is specified based on a cuff pressure signal of the upper arm. For example, the upper arm V0 equivalent cuff pressure is detected as an average blood pressure obtained from the cuff pressure signal of the upper arm. After a control target value and an initial cuff pressure in the volume compensation are detected, a difference between the initial cuff pressure and the upper arm V0 equivalent cuff pressure is calculated as a correction value, and the blood pressure value in the volume compensation method is corrected with the calculated correction value.

Abstract: A measurement device includes an air bag on a peripheral side, an air bag on a central side, and an air bag positioned therebetween. During blood pressure measurement, the air bags integrally behave, and the blood pressure is measured from the change in inner pressure thereof. During pulse wave measurement, the inner pressure of the air bag on the peripheral side is maintained to higher than or equal to the systolic blood pressure, and the measurement site is avascularized. The inner pressure of the air bag on the central side is maintained to the pressure near the blood pressure value, and the pulse wave is measured from the change in inner pressure thereof. The inner pressure of the air bag positioned therebetween is opened to atmospheric pressure, and the vibration of the air bag on the central side is prevented from propagating to the air bag on the peripheral side.

Abstract: A sphygmomanometer includes an operation part, a pulse wave sensor that detects a pulse wave signal indicative of a pulse wave in a part of the patient body that is operating the operation part. A first manometer measures a blood pressure based on the pulse wave signal, and a second manometer measures the blood pressure with a cuff that is worn by the patient. A cuff wearing detector detects a wearing of the cuff by the patient. A controller measures the blood pressure with the first manometer when the operation part is operated long enough for a detection of the pulse wave signal and measures the blood pressure with the second manometer when the cuff wearing detector detects that the cuff is worn and that the operation part is being operated.

Abstract: A blood pressure measurement device measures blood pressure and a blood pressure change affecting factor of a patient. The device includes a memory, a tolerance determination section, and a display unit. The tolerance determination section includes a rest/unrest condition determination section and a blood pressure tolerance determination section. The tolerance determination section determines whether the blood pressure of the patient is tolerant to the blood pressure change affecting factor. The display unit of the device displays the measured blood pressure, the measured blood pressure change affecting factor, and a tolerance determination of the patient.

Abstract: Disclosed herein is a system for monitoring a patient that includes a cuff configured to inflate to at least partially occlude an artery of the patient and a cuff controller configured to inflate the cuff during a dynamic phase and generally maintain inflation of the cuff at about a target pressure during a static phase. The system also includes a sensor configured to receive a signal associated with the at least partially occluded artery and generate an output signal based on the received signal, and a cuff control module configured to determine the target pressure during the dynamic phase and based on the output signal, and control the cuff controller during the dynamic phase and the static phase.

Abstract: A blood pressure measurement control method for controlling the measurement of a blood pressure according to an oscillometric method has the steps of determining whether to employ a depressurization measurement method or a pressurization measurement method to measure the blood pressure according to a person to be measured, performing a measurement process of the blood pressure in a depressurization process when determined to measure the blood pressure with the depressurization measurement method, performing a measurement process of the blood pressure in a pressurization process when determined to measure the blood pressure with the pressurization measurement method, and outputting the measured blood pressure value.

Abstract: Embodiments of the present disclosure relate to a system and method for determining a risk, onset, or presence of hypovolemia based on one or more features of a plethysmographic waveform during a patient breathing cycle. For example, a hypovolemic patient may exhibit characteristic changes in pulse amplitude or stroke volume during inhalation and exhalation relative to a healthy patient. Further, a trend or pattern of such features may be used to assess the patient's fluid condition.

Abstract: An apparatus for monitoring a physiological condition includes a signal-acquiring unit, an inflating-deflating unit, and a central processing system electrically coupled to the signal-acquiring unit and the inflating-deflating unit. The signal-acquiring unit is used for acquiring a first standard pulse signal and a first reactive hyperemia pulse signal at a specific part of a living being. The inflating-deflating unit is used for selectively inflating and deflating the specific part. The central processing system is capable of transforming the first standard pulse signal to a second standard pulse signal and transforming the first reactive hyperemia pulse signal to a second reactive hyperemia pulse signal using a nonstationary and nonlinear transfer function, respectively, to determine an endothelial function coefficient according to the second standard pulse signal and the second reactive hyperemia pulse signal, thus to analyze a physiological condition of the living being.

Abstract: An apparatus for assessing cardiovascular status of a mammal comprises a system for locally applying a pressure to an artery capable of restricting blood flow through said artery, a wideband external pulse transducer having an output and situated to measure suprasystolic signals proximate to said artery, and a computing device receiving said output for calculating vascular compliance values. The method described is particularly useful for determining cardiac output, assessing whether a pregnant female has preeclampsia or a patient has cardiac insufficiency, or assessing cardiac arrhythmias.

Abstract: A system and method of enhancing a blood pressure signal is disclosed. The volume of an artery in a finger is measured by a photo-plesthysmographic (PPG) system, which produces a PPG signal. This PPG system is placed inside a cuff, and the cuff pressure is controlled by the PPG signal. The portion or component of the PPG signal having a frequency higher than a predefined threshold frequency is then modified or enhanced, such as by multiplying the high frequency component by a calibration factor. A blood pressure signal is then calculated using the cuff pressure and the modified PPG signal. A blood pressure contour curve may then be generated, and a variety of parameters may be calculated using the curve.

Abstract: Provided is a blood pressure measuring apparatus including: a pressurizing unit applying pressure to a blood vessel according to a first condition or a second condition; a pressure sensor sensing a sphygmus wave and a pressure of the blood vessel from the blood vessel under the first condition or the second condition; a standard blood pressure calculating unit for calculating a systolic standard blood pressure and a diastolic standard blood pressure; a continuous blood pressure calculating unit for calculating continuous blood pressure; and a repressurizing determining unit for determining whether pressure is applied to the blood vessel under the second condition during measuring of continuous blood pressure.

Abstract: A blood pressure measurement device corrects the error caused by blood congestion. The device includes a blood pressure measurement section that calculates a blood pressure value of a patient based on the cuff pressure and pulse waves detected by a pressure sensor, a blood congestion determination section that determines a degree of blood congestion that occurred at a peripheral side of the measurement location due to the cuff pressure on the measurement location in accordance with a predetermined method, a blood pressure correction section that calculates a corrected blood pressure value based on the degree of the blood congestion, and a display that displays the corrected blood pressure value.

Abstract: Provided are an apparatus and method for measuring blood pressure.

Abstract: A medical blood pressure transducer that provides an identifier to a monitor that conveys characteristics of the transducer. The monitor can use the information to decide whether to function, or in calibration of the system. The transducer may be part of a disposable blood pressure monitoring system, and may include two transducers closely-spaced to provide two separate but identical outputs. In this way, the transducer may be connected to both a patient monitor and a cardiac output monitor at the same time measurements from a single line can be simultaneously supplied to two separate monitoring devices (for example a patient monitor and a cardiac output monitor). The identifier for the transducer may be circuitry, specifically a resistance/capacitance (RC) combination that possesses a characteristic time constant.

Abstract: A blood pressure information display device for calculating a blood pressure value based on a pulse wave amplitude through the oscillometric method and the like, and displaying the calculated blood pressure value as blood pressure information performs a process of changing a magnitude of a specified pulse wave amplitude of a plurality of extracted pulse wave amplitudes according to the operation by a user (medical staff) when a predetermined instruction is input. A predetermined algorithm is applied to the plurality of pulse wave amplitudes reflecting the change to calculate a reference blood pressure value, and the calculated reference blood pressure value is displayed as the blood pressure information.

Abstract: A device may include a vibration sensor configured to sense blood flow in a lumen of a person; a cuff coupled to the vibration sensor and configured to contact a limb of the person; a cuff pressurizer coupled to the cuff, the cuff pressurizer configured to adjust a compressive force of the cuff on the lumen; and an energy-generating apparatus coupled to the cuff, the energy-generating apparatus configured to generate energy from a depressurization of the cuff.

Abstract: A patient monitoring system includes an inflatable cuff, a gas reservoir containing a compressed gas, and a sensor. When the inflatable cuff is coupled to a wearer, the gas reservoir supplies gas to the inflatable cuff to inflate the inflatable cuff via gas pathways. As the inflatable cuff inflates, a patient monitor can receive blood pressure data from the sensor and use the blood pressure data to determine the blood pressure of the wearer. The patient monitor can also receive blood pressure data during deflation of the inflatable cuff to determine the blood pressure of the wearer.

Abstract: A blood pressure measuring apparatus includes a sensing unit including a plurality of sensors sensing sphygmus waves at a measurement site, a selection unit selecting one sensor of the plurality of sensors based on the sphygmus waves sensed by the plurality of sensors, and a blood pressure estimation unit estimating blood pressure of the measurement site based on a sphygmus wave sensed by the selected sensor.

Abstract: A system and method for processing oscillometric data from a plurality of pressure steps to determine the blood pressure of a patient. A heart rate monitor connected to the patient acquires the patient's heart rate. A time-to-frequency domain converter receives oscillometric data and converts the oscillometric data into the frequency domain. Based upon the calculated heart rate, the system and method filters the frequency domain oscillometric signal with pass bands centered at the fundamental frequency and at least one fundamental frequency. The energy of the frequency domain signal within the pass bands is compared to at least a portion of the energy of the frequency domain oscillometric signal outside of the pass bands. Based upon the comparison, the signal determines whether the signal at the current pressure step should be utilized in calculating the blood pressure of the patient.

Abstract: The present invention provides a technique for continuous measurement of blood pressure based on pulse transit time and which does not require any external calibration. This technique, referred to herein as the ‘Composite Method’, is carried out with a body-worn monitor that measures blood pressure and other vital signs, and wirelessly transmits them to a remote monitor. A network of body-worn sensors, typically placed on the patient's right arm and chest, connect to the body-worn monitor and measure time-dependent ECG, PPG, accelerometer, and pressure waveforms. The disposable sensors can include a cuff that features an inflatable bladder coupled to a pressure sensor, three or more electrical sensors (e.g. electrodes), three or more accelerometers, a temperature sensor, and an optical sensor (e.g., a light source and photodiode) attached to the patient's thumb.

Abstract: Provided are a blood pressure measuring apparatus capable of effectively eliminating the influence which the volume change in an upstream portion of an occluding cuff has on a pulse wave detection cuff in an oscillometric double-cuff system, increasing the S/N ratio of systolic blood pressure detection, and accurately measuring the blood pressure with an inexpensive arrangement, a cuff, and a blood pressure measuring method. The apparatus includes a first pipe (106) connected to an occluding air bag (108) and sub air bag (109). The first pipe is connected to the sub air bag, and the sub air bag is connected to the occluding air bag via an entirely foldable rod shape member (111) capable of maintaining a hollow portion. The sub air bag is laid over the occluding air bag by folding a middle pipe.

Abstract: A method and apparatus for measuring a patient's blood pressure featuring the following steps: 1) measuring a time-dependent optical waveform with an optical sensor; 2) measuring a time-dependent electrical signal with an electrical sensor; 3) estimating the patient's arterial properties using the optical waveform; 4) determining a pulse transit time (PTT) from the time-dependent electrical signal and the time-dependent optical waveform; and 5) calculating a blood pressure value using a mathematical model that includes the PTT and the patient's arterial properties.

Abstract: A pulse measurement device for more precisely measuring a pulse, including a sensing unit to sense a photoplethysmography (PPG) signal and an acceleration signal obtained from a user, a pressure control unit to control pressure applied to the sensing unit, and a signal determination unit to determine an optimum pressure range by analyzing the PPG signal varying with a change of the pressure applied to the sensing unit by the pressure control unit and to determine an exercise level of the user by using the acceleration signal.

Abstract: An inflatable cuff in a blood pressure-measurement system is integrated with a drug delivery device. The drug delivery device is configured to automatically deliver a drug dermally or transdermally to the individual in response to the measured blood pressures.

Abstract: An electronic sphygmomanometer determines whether a position of a measurement site falls within a proper range, and notifies whether the position of the measurement site falls within the proper range. When determination is made that a time in which the position of the measurement site falls within the proper range is not less than a predetermined time (for example, 2 seconds), measurement of a blood pressure is automatically started. When determination is made that a time in which the position of the measurement site is out of the proper range is not less than a predetermined time (for example, 5 seconds), the measurement of the blood pressure is started. Further, whether the position of the measurement site falls within the proper range is notified while correlated with the measurement result.

Abstract: An electronic sphygmomanometer acquires a patient ID and recommended site information read from an ID card before measurement. The recommended site indicating the site to be attached to a cuff of a left site or a right site is thereby specified for every person to be measured (patient ID). Thereafter, the site to be attached to the cuff is guided by notifying the specified recommended site to the person to be measured.

Abstract: A non-invasive continuous blood pressure monitoring system includes a first sensor configured to send a first ultra-wideband electromagnetic pulses to an upper site of a blood vessel and receive a first reflected ultra-wideband electromagnetic pulses with phase variations caused by a pressure wave propagating in the blood vessel, a second sensor configured to send a second ultra-wideband electromagnetic pulses to a lower site of the blood vessel and receive a second reflected ultra-wideband electromagnetic pulses with phase variations caused by the pressure wave propagating in the blood vessel, and a signal-processing and blood pressure displaying device configured to calculate an estimated blood pressure by taking into consideration a propagation time of the pressure wave from the upper site to the lower site in the blood vessel.

Abstract: The invention discloses an apparatus and method for measuring a blood pressure. In particular, the method and apparatus according to the invention are capable of eliminating motion artifacts induced by, for example, talking, irregular breathing, frequent swallowing, coughing, shaking, and so on motions of a subject. The method and apparatus according to the invention utilizes a set of fuzzy logic rules and a curve-fitting way to eliminate the motion artifacts.

Abstract: Methods and systems for determining blood pressure from a pressure signal are disclosed. A patient's blood pressure may be determined by analyzing features of a wavelet transformation of a pressure signal obtained during an occlusion procedure. Ridges in a scalogram of the transformed signal may be identified and used to determine an envelope of a pressure oscillation signal, to which oscillometric blood pressure determination techniques may be applied.

Abstract: A system and method to extract and measure awareness and a breathing rate information from the cardiac pulse uses plethysmographic and oximeter sensors. The information finds applications in patient monitoring during surgery, intensive care, sleep therapy, and sleep detection in critical operations of airplanes, trucks, automobiles, trains, and in biofeedback therapy.

Abstract: An improved method and apparatus for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises a method of measuring a hemodynamic parameter (e.g., arterial blood pressure) by applanating or compressing portions of tissue proximate to the blood vessel of concern until a desired condition is achieved, and then measuring the hemodynamic parameter. Such applanation effectively mitigates transfer and other losses created by the tissue proximate to the blood vessel, thereby facilitating accurate and robust tonometric measurement. An algorithm adapted to maintain optimal levels of applanation is also described. Methods and apparatus for scaling such hemodynamic parameter measurements based on subject physiology, and providing treatment to the subject based on the measured parameters, are also disclosed.

Abstract: Provided are a pressurizing module and a blood pressure measuring device including the pressurizing module. The pressurizing module includes a driving block optionally discharging compressed air; and a bellows-type airbag formed to overlap with the driving block, and comprising an inner space accommodating the compressed air discharged from the driving block, a plurality of wrinkles flattened so as to expand the inner space, and a pressurizing surface formed at an end portion of the wrinkles and spaced apart from the driving block as the inner space expands.

Abstract: A method and apparatus for measuring a patient's blood pressure featuring the following steps: 1) measuring a time-dependent optical waveform with an optical sensor; 2) measuring a time-dependent electrical signal with an electrical sensor; 3) estimating the patient's arterial properties using the optical waveform; 4) determining a pulse transit time (PTT) from the time-dependent electrical signal and the time-dependent optical waveform; and 5) calculating a blood pressure value using a mathematical model that includes the PTT and the patient's arterial properties.

Abstract: A blood pressure gauge comprises a cuff, a gas pump, a pressure relief valve, a pressure sensor, a gas conduit, a MEMS microphone and a controller. The cuff has a gas bag. The gas pump is used for inflating and pressurizing the gas bag. The pressure relief valve is used for deflating and depressurizing the gas bag. The pressure sensor is used for detecting the pressure of the gas bag. The gas conduit connects the gas bag, the gas pump, the pressure relief valve and the pressure sensor to form a gas loop. The gas loop delivers gas among the gas bag, the gas pump, the pressure relief valve and the pressure sensor. The MEMS microphone is disposed at a specified location of the gas loop for detecting the Korotkoff sounds transmitted from the passing gas. The controller is used for monitoring and controlling the gas pump, the pressure relief valve, the pressure sensor and the MEMS microphone.

Abstract: An electronic sphygmomanometer, which measures blood pressure in accordance with the volume compensation method, detects a cuff pressure inside a cuff attached to a measurement site of the blood pressure. An arterial volume detection circuit detects an arterial volume signal of the measurement site. A drive control unit, after setting the cuff pressure to an initial cuff pressure, servo-controls a cuff pressure adjustment unit so that a volume of an artery becomes constant, based on the detected arterial volume signal. While the servo control is being performed, an arterial volume change amount is detected based on the detected arterial volume signal.

Abstract: A sphygmomanometer measures blood pressure in accordance with an oscillation in an artery wall, resulting from an arterial pulse correspondent with a change in cuff pressure. It comprises a cuff that is connected to the sphygmomanometer main body by a tube, a display unit for displaying the results of blood pressure measurements, and an air supply unit for supplying air to, and thus pressurizing, the cuff, which is detachable from the sphygmomanometer main body. The air supply unit is screwed into the sphygmomanometer main body with a screw assembly, and the screwed-in state is preserved by a caulking ring. The air supply unit also comprises a filter for keeping dust from entering the sphygmomanometer main body.

Abstract: A blood pressure measuring device capable of measuring Electrocardiogram (ECG) is provided, in which a cuff body includes a compression sensor unit for sensing a blood pressure and a pulse rate while being worn on a user's body, a sensor unit is detachably provided at an interior and exterior of the cuff body and senses potential differences in active current generated during contraction of the user's heart and deriving an ECG value, in contact with the user's body, and a controller is electrically connected to the sensor unit and determines whether the user is normal by comparing the derived ECG value with a preset normal ECG value.

Abstract: A device can include a vibration sensor configured to sense blood flow in a lumen of a person; a cuff coupled to the vibration sensor and configured to contact a limb of the person; a mechanical cuff tensioner coupled to the cuff, the mechanical cuff tensioner configured to adjust a compressive force of the cuff on the lumen; a tension sensor operably coupled to the mechanical cuff tensioner, the tension sensor configured to measure a first tension value of the cuff during a first sense by the vibration sensor and to measure a second tension value of the cuff during a second sense by the vibration sensor; and a recorder mechanism configured to record the first tension value, the first measurement by the vibration sensor, the second tension value, and the second measurement by the vibration sensor.

Abstract: A device may include a vibration sensor configured to sense blood flow in a lumen of a person; a cuff coupled to the vibration sensor and configured to contact a limb of the person; a cuff pressurizer coupled to the cuff, the cuff pressurizer configured to adjust a compressive force of the cuff on the lumen; and an energy-generating apparatus coupled to the cuff, the energy-generating apparatus configured to generate energy from a depressurization of the cuff.

Abstract: Improved tourniquet apparatus for measuring a patient's limb occlusion pressure includes an inflatable tourniquet cuff for encircling a limb at a location and to which a tourniquet instrument is releasably connectable.