27 results about "Blood pressure device" patented technology

Techniques for cuffless blood pressure monitoring with multiparameter correction are described and are implementable to reduce measurement inaccuracies in wearable cuffless blood pressure devices. In an example, a wearable device includes a sensor arrangement to collect physiological timing data indicative of a pulse propagation time along a cardiovascular pathway and a correction sensor that is configured to measure a correction parameter that impacts the pulse propagation time independent of a corresponding change to blood pressure, such as body temperature, skin temperature, perfusion index, hydration level, or muscle activation.  A processor of the wearable device is configured to process the physiological timing data to determine the pulse propagation time and generate a blood pressure measurement based on the pulse propagation time and measurements of the correction parameter.  Accordingly, the techniques described herein generate blood pressure measurements that account for physiological variables that have an independent impact on pulse propagation characteristics.

The invention discloses an arm band structure for a household sphygmomanometer, and aims to provide an arm band structure for a household sphygmomanometer, which can be operated by a single hand. Comprising an inner buckling roll sheet, the inner buckling roll sheet is automatically curled into a plurality of layers and comprises an outer ring end and an inner ring end, the inner ring end is sleeved with a soft sleeve, an air bag layer is arranged between the inner buckling roll sheet at the inner ring end and the soft sleeve, a sliding rail is arranged on the side face of the outer ring end, a connecting rod is slidably connected into the sliding rail, and the other end of the connecting rod extends into the soft sleeve to be rotationally connected with the side face of the inner ring end. A supporting plate is arranged at the inner ring end and connected with the side face of the inner ring end, the supporting plate is connected with a rotating gear, the rotating gear is arranged between the inner ring end and the outer ring end, a rack is arranged on the inner surface of the outer ring end, and the rotating gear is meshed with the rack. The sphygmomanometer has the beneficial effects that the arm band can be worn by one hand, the range of applicable personnel is enlarged, the sphygmomanometer is particularly convenient for the disabled, the value of the sphygmomanometer is improved, the wearing process is rapid, and the sphygmomanometer has high comfort and convenience.

The air path assembly and the wearable electronic sphygmomanometer comprise an air box, an air pump, an air pressure sensor and an air valve, the air box comprises an air path channel, an air inlet is formed in the air box, and the air inlet is communicated with the air path channel; the air pump is arranged on the inner side of the air box and is communicated with the air inlet; the air pressure sensor is mounted on the air box and communicated with the air channel, and the air pressure sensor is arranged on the side, away from the air inlet, of the air pump; the air valve is installed on the air box and communicated with the air channel, and the air valve is arranged on the side, away from the air inlet, of the air pump. On one hand, the structure of the gas circuit assembly can be simplified, the overall size of the gas circuit assembly is reduced, the yield is improved, and carrying and using are convenient; and on the other hand, the sealing structure design of the gas circuit assembly is optimized, the possibility of leakage is reduced, and the gas is buffered, so that the pressure fluctuation noise caused in the gas charging or discharging process of the gas circuit assembly can be reduced, and the accuracy of pressure detection when the pressure sensor works is improved.

An emergency medical kit may comprise a main body with multiple compartments. A fabric panel may be attached to the main body. The fabric panel may include horizontal and vertical straps forming a grid pattern. The fabric panel may have attachment points for securing medical supplies. A removable medication pack containing pre-selected medications may be included. A removable wound cleaning pack with treatment supplies may also be provided. The kit may further include items like a blood pressure cuff, stethoscope, tourniquet, trauma shears, and pulse oximeter. The fabric panel may have a mesh pocket with a zipper. The main body may open in a T-shaped layout. Elastic bands may secure additional supplies. The grid pattern may comprise a MOLLE system. A medical bag component with a mesh pocket and logo may attach to the main body.

Methods, systems, and computer-readable medium for determining a systemic vascular resistance (SVR), by receiving a systolic blood pressure (SBP) and a diastolic blood pressure (DBP) from one or more blood pressure devices, receiving a first bioimpedance from a first electrode and a second bioimpedance from a second electrode, determining a stroke volume based on a difference between the first bioimpedance and the second bioimpedance, determining a mean arterial pressure (MAP) based on the SBP and the DBP, receiving a heart rate, determining a cardiac output based on the heart rate and the stroke volume, determining a first value based on a right atrial pressure (RAP) or central venous pressure (CVP) and the map, determining a second value based on the first value and the cardiac output, and determining a SVR based on the second value and a factor.

The application relates to a blood pressure calculation method and device, a blood pressure measuring device, a computer device and a storage medium. The method comprises the following steps: acquiring a pressure signal of an inflation pump of a blood pressure measuring device in an inflation process; performing pulse wave peak identification according to the pressure signal to generate a peak value sequence; determining a pulse rate according to the peak value sequence, determining a target highest peak value in the peak value sequence, and determining the highest peak value as an average pulsatile pressure; performing asymmetric Gaussian fitting on the peak value sequence with the target highest peak value as the center to obtain a fitted peak value curve; and calculating a blood pressure parameter according to the peak value sequence, the fitted peak value curve and the position of the target highest peak value. The blood pressure parameter comprises a systolic pressure value and a diastolic pressure value. The method converts the pressure signal of the inflation pump in the inflation process into a peak value sequence, analyzes the peak value sequence and calculates a blood pressure parameter, and the accuracy of blood pressure parameter calculation is improved.

The present invention suppresses the occurrence of noise associated with switching of control and acquires a clean pressure pulse wave from a low pressure. This blood pressure measurement device comprises a cuff that is wound around a measurement site, a pressure detection unit that detects the cuff pressure in the cuff, a pressure control unit that controls the cuff pressure, a blood pressure calculation unit that performs a blood pressure calculation process for calculating the blood pressure of a subject on the basis of the detected cuff pressure, and a winding strength determination unit that performs a winding strength determination process for determining the winding strength with which the cuff is wound around the measurement site. The pressure control unit performs uniform rate pressurization control in which the cuff pressure is increased at a uniform rate through the winding strength determination process performed after the increasing of the cuff pressure is started and the blood pressure calculation process performed after the end of the winding strength determination process.

1. The name of the design product: piezoelectric air pump. 2. The use of the design product: piezoelectric air pump for smart watch or blood pressure meter built-in test blood pressure. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to a blood pressure calculation method and device, blood pressure measurement equipment, computer equipment and a storage medium. The method comprises the following steps: acquiring a pressure signal of an inflator pump of the blood pressure measurement equipment in an inflation process; performing pulse wave crest identification according to the pressure signal to generate a peak sequence; determining a pulse rate according to the peak sequence, determining a target highest peak value in the peak sequence, and determining the highest peak value as an average pulsating voltage; performing asymmetric Gaussian fitting on the peak sequence by taking the highest peak value of the target as the center to obtain a fitted peak curve; according to the peak sequence, fitting the peak curve and the position of the highest peak value of the target, and calculating blood pressure parameters; the blood pressure parameters comprise systolic pressure values and diastolic pressure values. According to the method, the pressure signals of the inflator pump in the inflation process are converted into the peak value sequence, the peak value sequence is analyzed, the blood pressure parameters are calculated, and the accuracy of blood pressure parameter calculation is improved.

This application provides a blood pressure calculation method, including collecting pressure data; calculating effective systolic and effective diastolic blood pressure based on the pressure data; determining whether there are missing parameters, and if so, using a prediction algorithm for calculation; the prediction algorithm includes: determining an envelope curve based on the pressure data; solving a one-dimensional Gaussian function based on multiple consecutive effective points at the posterior endpoint of the envelope curve; and determining the missing parameters based on the one-dimensional Gaussian function. This solution achieves accurate blood pressure calculation under incomplete envelope conditions, effectively utilizing the similarity between the shape of the one-dimensional Gaussian function and the shape of the human blood pressure envelope curve to determine the corresponding missing parameters. It overcomes the problems of incomplete envelopes and missing systolic or diastolic blood pressure characteristic points caused by insufficient pressure or signal interference in traditional methods, thereby comprehensively optimizing the reliability and success rate of the measurement process.

The application discloses a blood pressure calculation method and equipment based on cross-scale fluid-solid coupling and considering nonlinear biomechanical characteristics of an aorta, and the method comprises the following steps: establishing a three-dimensional ideal aorta geometric model; establishing a zero-dimensional heart lumped parameter model to simulate the process that the heart pumps blood to the aorta inlet through periodic contraction and diastole; establishing a zero-dimensional three-element Windkessel model of small arteries to simulate blood flow microcirculation of peripheral small arteries; establishing a blood vessel wall biomechanical model containing residual stress of the aorta wall and active contraction of smooth muscle cells to obtain a pressure-radius relationship of the aorta wall as a fluid wall boundary condition to simulate the change process of the aorta radius in blood circulation; and coupling the three-dimensional ideal geometric model of the aorta, the zero-dimensional heart lumped parameter model and the zero-dimensional three-element Windkessel model to construct a cross-scale fluid-solid coupling system of hemodynamics, and the blood pressure in the aorta is calculated through iterative solution.

The present disclosure relates to computing blood pressure from images of the outer eye of an individual. Images of the outer eye of an individual obtained via a high magnification camera can be analyzed using computer vision to identify features associated with blood vessels in the outer eye, such as blood vessel size or diameter, blood vessel wall thickness, distance between vessels or vessel segments, area between vessels or vessel segments, and / or blood velocity through the vessels. These blood vessel features derived from images may be used to compute a blood pressure measure(s) for an individual through use of an artificial intelligence algorithm which relates the blood vessel features to blood pressure values.

The invention provides a respiratory cycle measuring method, which is suitable for measuring a pressure wave signal related to a pulse of a user according to an electronic sphygmomanometer to obtain a respiratory cycle related to the user, and is implemented through the electronic sphygmomanometer, and comprises the following steps: (A) according to a plurality of peak values in the pressure wave signal, determining a respiratory cycle of the user according to the peak values in the pressure wave signal; obtaining a plurality of original heartbeat intervals corresponding to a plurality of time points, wherein each original heartbeat interval comprises a time interval of two adjacent peak values; (B) obtaining heartbeat interval time sequence information according to the original heartbeat interval and the time point corresponding to the original heartbeat interval; and (C) according to the heartbeat interval time sequence information, obtaining the respiratory cycle of the user.

The invention provides a blood pressure instrument connector assembly, and belongs to the technical field of blood pressure instruments, the blood pressure instrument connector assembly comprises a blood pressure instrument main body, a measuring cuff, a flexible air pipe, a winding wheel, a pushing assembly, a driving assembly and an air supply assembly, one end of the flexible air pipe extends into the blood pressure instrument main body and is connected with the winding wheel; one end of the flexible air pipe is connected with the blood pressure instrument body, the other end of the flexible air pipe extends to the outside of the blood pressure instrument body and is connected with the measuring cuff, the air supply assembly is installed in the blood pressure instrument body and used for supplying air into the flexible air pipe, the winding wheel is arranged in the blood pressure instrument body, and the driving assembly is installed on the inner wall of the blood pressure instrument body and used for driving the flexible air pipe to rotate. And the driving wheel is used for driving the winding wheel to rotate so as to wind the flexible air pipe. Compared with the prior art, the flexible air pipe can be stored and protected, so that the flexible air pipe is prevented from being exposed outside for a long time, accidental damage to the flexible air pipe is avoided, and the service life of the flexible air pipe is prolonged.

To correctly inform a user of the necessity of calibration.SOLUTION: A blood pressure measurement device according to an aspect comprises: a measurement unit for measuring pulse waves; a blood pressure calculation unit which calculates a blood pressure based on the pulse waves; a signal output unit which receives input of the pulse waves and outputs a signal by a learned model; and a determination unit which determines the propriety of the reproduction of the pulse waves in the signal.SELECTED DRAWING: Figure 2

The utility model is suitable for the technical field of medical instruments, and provides a dual-purpose dynamic sphygmomanometer which comprises a first cuff assembly, a second cuff assembly, a main machine and a portable bag, the first cuff assembly comprises a first cuff and a first air pipe which are communicated with each other, the second cuff assembly comprises a second cuff and a second air pipe which are communicated with each other, and the first air pipe and the second air pipe are communicated with each other. The length of the first air pipe is smaller than that of the second air pipe, and the host can be detachably connected and communicated to the tail end of any one of the first air pipe and the second air pipe; in the first use mode, at least one part of the main machine can be contained in the portable bag, the main machine is communicated with the tail end of the second air pipe, and in the second use mode, the main machine can be connected with the outer surface of the first cuff and is communicated with the tail end of the first air pipe. Different wearing requirements of users are met, the influence on the daily life of the users is reduced, the use turnover rate is higher for hospitals, rehabilitation centers and the like, the use efficiency of equipment is improved, and the cost is saved.

The application provides a non-invasive blood pressure detection system, method, electronic equipment and storage medium, the system comprises a photoelectric signal acquisition module, an analog signal processing module, a digital signal processing module and a blood pressure calculation module, wherein: the photoelectric signal acquisition module is used for collecting the photoelectric volume pulse wave of specific tissues of the human body; the analog signal processing module is used for amplifying and filtering out analog high-frequency noise of the photoelectric volume pulse wave to obtain a first signal; the digital signal processing module is used for converting the first signal into a digital signal to obtain a second signal, and is also used for signal optimization and signal cleaning of the second signal to obtain a third signal; and the blood pressure calculation module is used for obtaining a blood pressure value based on the third signal and using a 2DBP_Net dimensional transformation convolution network, so that the precision of blood pressure detection can be improved.

The invention discloses a blood pressure measuring method, wearable equipment and a storage medium, and relates to the technical field of wearable equipment, and the blood pressure measuring method comprises the following steps: acquiring a target physiological signal detected by a target user in a current time period based on the wearable equipment; collecting detection environment parameters of the wearable device in the current time period; according to the target physiological signal, blood pressure change factor information which causes the change of the blood pressure value level of the target user is identified, and a target blood pressure calculation model mapped by the blood pressure change factor information is determined from a plurality of preset blood pressure calculation models; and inputting the acquired blood pressure baseline characteristics and blood pressure baseline states, the target physiological signals and the detection environment parameters into a target blood pressure calculation model, and outputting a blood pressure value of the target user. Interference caused by individual differences is effectively reduced, and accuracy and individual adaptability of blood pressure monitoring are improved.

The embodiment of the invention provides a blood pressure calculation method. The method comprises the steps that pressure data are collected; calculating effective systolic pressure and effective diastolic pressure based on the pressure data; whether missing parameters exist or not is determined, and if yes, a prediction algorithm is used for calculation; the prediction algorithm comprises the following steps: determining an envelope curve based on the pressure data; solving a one-dimensional Gaussian function based on a plurality of continuous effective points at the rear end point of the envelope curve; and determining the missing parameters based on a one-dimensional Gaussian function. According to the scheme, accurate blood pressure calculation is achieved under the incomplete envelope condition, the similarity between the form of the one-dimensional Gaussian function and the form of the human body blood pressure envelope curve is effectively utilized, and then the corresponding missing parameters are determined; the problems of incomplete envelope and lack of systolic pressure or diastolic pressure feature points caused by insufficient pressurization or signal interference in a traditional method are solved, so that the reliability and the success rate of the measurement process are comprehensively optimized.

A wearable blood pressure meter includes a semi-conformable bladder, serving as a reservoir for an incompressible fluid, and a pressure sensor. The semi-conformable bladder includes a rigid housing defining a cavity within which the incompressible fluid is rigidly constrained and an elastic membrane for elastically constraining the incompressible fluid. The elastic membrane extends across an aperture into the cavity through the rigid housing. The elastic membrane conforms to a body part at the aperture when pressed against the body part. The pressure sensor mechanically couples to the incompressible fluid to measure pressure signals emanating from an artery within the body part and which propagate through the conformable membrane and the incompressible fluid to the pressure sensor.

The utility model relates to the technical field of medical instruments, and provides a blood pressure simulation device and a blood pressure simulation system. The blood pressure simulation device comprises a first air path assembly, a second air path assembly and a control unit. The first gas circuit assembly comprises a cylinder, a first gas pump, a first gas storage device, a pressure sensor, a first gas socket and a first multi-way connector. The cylinder, the first gas pump, the first gas storage device, the pressure sensor and the first gas socket are connected with the first multi-way connector. The second gas circuit assembly comprises a second gas pump, a second gas storage device, a second gas socket and a second multi-way connector. The second gas pump, the second gas storage device and the second gas socket are connected with the second multi-way connector. The air cylinder, the first air pump, the pressure sensor and the second air pump are all in communication connection with the control unit. The blood pressure simulation device overcomes the defects that an existing blood pressure simulation device can only detect a sphygmomanometer through oscillography or pulse wave, and consequently simulation precision and integration level are low.

This invention describes how users can capture digital artifacts from any medical device using their mobile device. Some examples of medical devices included, but are not limited to a medical ID card, Medical ID bracelet, Electronic Medical Records, blood pressure machines, blood glucose, scales, inhalers, INR, prescription bottles and trays, pulse oximeter, etc. Digital artifacts included, but are not limited to a medical ID, basic patient information, patient contact information, emergency contact information, primary care physician information, health insurance information including co-pay and deductibles, prescriptions, office visit summary, appointment cards, Electronic Medical Records (EMR), lab results, blood type, organ / donor status, vital signs, diagnostic data, immunization records, payments and transaction history, pictures, etc

Techniques for cuffless blood pressure monitoring with multiparameter correction are described and are implementable to reduce measurement inaccuracies in wearable cuffless blood pressure devices. In an example, a wearable device includes a sensor arrangement to collect physiological timing data indicative of a pulse propagation time along a cardiovascular pathway and a correction sensor that is configured to measure a correction parameter that impacts the pulse propagation time independent of a corresponding change to blood pressure, such as body temperature, skin temperature, perfusion index, hydration level, or muscle activation. A processor of the wearable device is configured to process the physiological timing data to determine the pulse propagation time and generate a blood pressure measurement based on the pulse propagation time and measurements of the correction parameter. Accordingly, the techniques described herein generate blood pressure measurements that account for physiological variables that have an independent impact on pulse propagation characteristics.

This pressing device is for pressing a pressure sensor against a radial artery, said pressure sensor being for measuring chronological variation in blood pressure. The pressing device has a first surface where the pressure sensor is positioned. When the pressure sensor is pressed against the radial artery, the first surface faces the radius with the radial artery interposed therebetween.

1. The name of the design product: wrist blood pressure meter (U19). 2. The use of the design product: the design product is used for detecting blood pressure by wearing on the wrist. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.