72 results about "Pulmonary function testing" patented technology

Cardiac monitoring and / or stimulation methods and systems employing dyspnea measurement. An implantable cardiac device may sense transthoracic impedance and determine a patient activity level. An index indicative of pulmonary function is implantably computed to detect an episode of dyspnea based on a change, trend, and / or value exceeding a threshold at a determined patient activity level. Trending one or more pulmonary function index values may be done to determine a patient's pulmonary function index profile, which may be used to adapt a cardiac therapy. A physician may be automatically alerted in response to a pulmonary function index value and / or a trend of the patient's pulmonary index being beyond a threshold. Computed pulmonary function index values and their associated patient's activity levels may be stored periodically in a memory and / or transmitted to a patient-external device.

A breathing circuit for a tracheostomized patient provides respiratory care and pulmonary function testing. The breathing circuit includes a flow control adapter that directs an inspiratory flow of air and an expiratory flow of air. The flow control adapter includes a subject port for coupling to a tracheostomy tube, an inspiratory port for coupling to an incentive spirometer, and an expiratory port. The flow control adapter further includes an adapter body and a one-way valve. The adapter body is configured to define an inspiratory fluid flow path between the inspiratory port and the subject port and to define an expiratory fluid flow path between the subject port and the expiratory port. The one-way valve substantially prevents air that flows generally along the inspiratory fluid flow path from flowing through the expiratory port during inspiration and allows air flowing generally along the expiratory fluid flow path to flow through the expiratory port during expiration.

A system for calibrating pulmonary function test equipment having syringe means, including a syringe having a cylindrically shaped sidewall, a proximal end with an centrally located orifice, a distal end with an output port, an interior cavity, and a plunger with a shaft slidably mounted through the orifice, a piston-type head mounted on one end of the shaft, and a handle mounted on an opposing end of the shaft; an FRC port; a rigid FRC bag connected in flow communication with the FRC port; control means having a plurality of stop mechanisms, including a first stop mechanism, a second stop mechanism structured to enable selective connection of the interior cavity in flow communication with the FRC port, and a third stop mechanism, and connection means structured to connect the syringe means to existing pulmonary function test equipment. A method of utilizing the system is also disclosed.

The invention discloses a flow sensor for pulmonary function testing. The flow sensor comprises a base body, the base body is provided with a through hole capable of achieving air blowing, a high-pressure pressure tap and a low-pressure pressure tap, the high-pressure pressure tap and the low-pressure pressure tap are communicated with the through hole separately, the diameter of the middle of the through hole is smaller than that of the two ends of the through hole, the middle small-diameter segment of the through hole serves as a throat segment, the air blowing segment of the two ends of the through hole serves as an inlet segment, the high-pressure pressure tap is communicated with the inlet segment, and the low-pressure pressure tap is communicated with the throat segment. The flow sensor for pulmonary function testing has the advantages that the suitable changing gradient of a diameter difference is calculated and analyzed through the fixed diameter difference among the different hole segments of the through hole, it is guaranteed that the pressure difference under the laminar condition can be obtained between the high-pressure pressure tap and the low-pressure pressure tap, and therefore the flow sensor achieves the high testing sensitivity, is accurate in tested pressure difference valve and reusable, does not need to be calibrated and is simple in structure and low in usage cost.

The invention discloses a pulmonary function test system and method based on an expiration mathematic model, and the method comprises the steps that the system reads an expiration curve of a forced vital capacity test of a testee; a data processing module of the system carries out the data processing of the forced expiration curve, and an output module of the system outputs pulmonary function index parameters; The forced expiration curve just need to meet a test quality control standard, except an expiration end standard, suggested by American Thoracic Society or European Medical Association,and the force expiration time is longer than 3 seconds. The pulmonary function index parameters mainly comprise forced lung capacity, pulmonary drive pressure, airway resistance, forced vital capacityin the first second, and the forced expiratory volume in one second / forced vital capacity (FEVl / FVC). The system and method solve a problem that the quality of the pulmonary function test is low because the expiration in the pulmonary function test is ended too early, achieve the accurate estimation and diagnosis of airway congestion and the barrier limiting degree.

The invention relates to a device for detecting the pulmonary function of creatures and a using method of the device. The device comprises a plethysmograph box, an animal breathing mask, an airflow shunt component and an oral flow velocity component, wherein the plethysmograph box is used for arranging an animal. The device further comprises a chest pressure measuring component and a tidal volume measuring component. The device can measure various indications of the pulmonary function including chest pressure, oral flow velocity, tidal volume, lung compliance and airway resistance, and the function of atomized application can be realized. The device for detecting the pulmonary function of the creatures is low in cost and convenient to operate, and the detected pulmonary indications can reflect actual conditions of the animal.

A pulmonary treatment system includes a compact configuration for delivery to a first airway of a patient. An energy delivery system of the pulmonary treatment system delivers energy to target tissue in or along an airway wall of the first airway to reduce airway resistance in a second airway distal to the first airway. The pulmonary treatment system protects tissue in the airway wall of the first airway located between the target tissue and the energy delivery system by at least one of thermodynamically cooling, circulating a liquid coolant through the pulmonary treatment system, and shielding a portion of the energy delivery system.

The present invention provides methods for the assessment of risk of developing lung cancer in smokers and non-smokers using analysis of genetic polymorphisms. The present invention also relates to the use of genetic polymorphisms in assessing a subject's risk of developing lung cancer, and the suitability of a subject for an intervention in respect of lung cancer. Nucleotide probes and primers, kits, and microarrays suitable for such assessment are also provided.

A compact, on-airway, respiratory gas analyzer for performing pulmonary function tests incorporates an IR spectroscopy light guide having a curved, rather than linear, sample chamber that lies transverse to a direction of respiratory gas flow. Cooperating with the sample chamber is an impact plate that functions to steer respiratory and test gases impinging on the impact plate into the curved sample chamber. A source of IR energy is at one end of the sample chamber and an electro-optical sensor responsive to IR energy is disposed at an opposite end of the chamber. The respiratory gas analyzer also includes gas flow paths and valving for carrying out lung capacity and lung diffusion tests.

The present invention provides methods for the assessment of risk of developing chronic obstructive pulmonary disease (COPD), emphysema or both COPD and emphysema in smokers and non-smokers using analysis of genetic polymorphisms. The present invention also relates to the use of genetic polymorphisms in assessing a subject's risk of developing COPD, emphysema or both COPD and emphysema.

A method and system for use in measuring the endothelial dysfunction utilizing flow mediated dilation and determining arterial health of a patient. The system includes a non-invasive blood pressure monitor, an ultrasound system and a pulse oximeter monitor that all communicate with each other to perform the flow mediated dilation. Initially, the ultrasound transducer, blood pressure cuff and pulse oximeter sensor are positioned on an arm of the patient. The blood pressure cuff is inflated to occlude an artery for an occlusion period. Following the occlusion period, the ultrasound system is automatically signaled to begin determining a parameter of the artery, such as diameter, and the flow rate of blood through the artery without any operator intervention. At the same time, the pulse wave velocity PWV is calculated between the ultrasound transducer and the finger probe of the pulse oximeter following the occlusion period. Based upon the detected characteristics of the artery before and after occlusion, as well as the PWV, the system can determine the endothelial dysfunction and arterial health of the patient.

The invention relates to a pulmonary function examination system with an automatic seat adjustment function and an application method of the system. A supporting base is fixedly installed on a base, apulmonary function examination instrument is fixedly installed on the supporting base, and two parallelly-arranged horizontal supporting rods are fixedly installed at the top of the supporting base;a rotation shaft is fixedly installed between the ends of the two horizontal supporting rods, a rotation sleeve sleeves the outer side of the rotation shaft, and a first leakage hole and a second leakage hole are formed in the rotation cylinder; connection pipes are installed in the second leakage hole, the first leakage hole and the rotation cylinder, one end of each connection pipe is communicated with an air inlet through an air conveying pipe, and the other end of each connection pipe is communicated with an oral cavity anastomat; an automatic seat adjustment device is installed on the portion, of the base, below the corresponding position of the oral cavity anastomat, the supporting base is of a cuboid cavity structure, and a distributor plate is installed in the supporting base; an external power line is arranged at the outer side of the distributor plate, and the pulmonary function examination instrument is connected with a computer analysis mainframe through a wire and the distributor plate. The system helps to smoothly carry on air blowing operation, all-around comprehensive improvement is conducted from the precision degree of a detection result and the use experience ofa patient, and the system has great social and economic benefits.

The present invention provides methods for the assessment of risk of developing occupational chronic obstructive pulmonary disease (OCOPD) in smokers and non-smokers using analysis of genetic polymorphisms. The present invention also relates to the use of genetic polymorphisms in assessing a subject's risk of developing OCOPD. Nucleotide probes and primers, kits, and microarrays suitable for such assessment are also provided.

An enhanced electronic medical device is provided that combines some of the enhanced electronic features found in other electronic medical devices with software for executing a stochastic process control and evaluating the digital respiratory and other physiological data collected by the electronic medical device. The programmed stochastic process control is capable of selecting and calculating any one of a number of pulmonary function and other physiological parameters including at least one statistical process control variable to determine a pulmonary or other physiological threshold. Information systems linking doctor's offices and patient's electronic medical devices are further provided to transmit warning data in cases where the pulmonary or other physiological threshold is exceeded.

The invention discloses a pulmonary function meter, comprising a mobile phone and a pulmonary function sensor, wherein the pulmonary function sensor comprises an outer shell; the lower side of the outer shell is provided with a blowing nozzle; the left side or the right side of the outer shell is provided with an air outlet; the upper side of the outer shell is provided with a plug; a rotor and a stator are arranged in the outer shell; the rotor is located at the right upper part of the blowing nozzle; the stator is located at the right upper part of the rotor; the pulmonary function sensor is connected with a mobile phone circuit through the plug. The working principle is as follows: an user breaths towards the blowing nozzle, the air flow is blown in from the blowing nozzle to drive a rotary blade to rotate; as the rotary blade is made of magnetic materials, when the rotary blade is rotated, an electro-magnetic induction is generated between the rotary blade and a coil, a current signal is generated in the coil; and the current signal is transmitted to the mobile phone through the plug, the microphone (mic) current receiving, wave filtering and spectrum analysis are performed by the mobile phone, and are compared with the data implanted in the mobile phone in advance, thereby the condition of the pulmonary function is obtained. The pulmonary function meter provided by the invention is simple in structure, convenient to use, good in use effect, low in cost, and can be popularized and applied.

The present invention provides methods for the assessment of risk of developing chronic obstructive pulmonary disease (COPD), emphysema or both COPD and emphysema in smokers and non-smokers using analysis of genetic polymorphisms.

The invention provides a flow sensor for pulmonary function test, an application of the flow sensor to a pulmonary function tester and a pulmonary function testing method. The flow sensor is of a hollow tube structure and mainly formed by sequentially connecting an expiratory air inlet portion, a first cone, a throat and a second cone, a low-pressure pressure tap is formed in the tube wall of the throat, and a first high-pressure pressure tap and a second high-pressure pressure tap are formed in tube walls on two sides of the hollow tube structure except for the throat. The flow sensor and the pulmonary function tester can test bidirectional flow of expiration and inspiration and are compact in structure, convenient to calibrate and correct and simple in after-sales maintenance, and miniaturization of the pulmonary function tester is facilitated.

The invention discloses a child pulmonary function rehabilitation training instrument. The child pulmonary function rehabilitation training instrument comprises an expiration pipeline, a box connected with the expiration pipeline in a clamped manner, a detection circuit board installed in the box and used for detecting the air pressure condition in the expiration pipeline, and an intelligent mobile terminal internally provided with animation games driven by air pressure data in the expiration pipeline. The detection circuit board is provided with a detection circuit and comprises an air pressure sensor, an embedded CPU and a wireless communication module which are sequentially connected. A ventilation hole is formed in the side wall of the expiration pipeline, and a ventilation gasket is arranged between the ventilation hole and the air pressure sensor. The output end of the wireless communication module is in wireless connection with the intelligent mobile terminal. The child pulmonary function rehabilitation training instrument is ingenious in design, simple in principle, convenient to operate and capable of effectively activating the enthusiasm of children to accept the pulmonary function parameter test, and the child pulmonary function test becomes simple, rapid and accurate.

The disclosure relates to IL-13 antagonists, in particular anti-human-IL-13 antibodies and human-IL-13-binding fragments thereof, and their use for improvement, maintenance or reduction in the rate of decline of pulmonary function in a subject with impaired pulmonary function, which may be associated with uncontrolled moderate-to-asthma, COPD or IPF.

The invention relates to the field of personal software testing, and provides a method for testing the data processing accuracy of a pulmonary function detector. The method comprises the following steps: S1, reading a breath wave curve; S2, carrying out data processing on the breath wave curve by adopting a data processing module of the to-be-tested pulmonary function detector, thus obtaining measured values of pulmonary function parameters; and S3, comparing the measured values of the pulmonary function parameters with the standard values of the pulmonary function parameters, thus determining the data processing accuracy of the pulmonary function detector, wherein the standard values of the pulmonary function parameters are the pulmonary function parameter values of the breath wave curve. For the testing method provided by the invention, the flow data of a standard tested person or the breathing simulator does not need to be collected, so that the errors during the data collection process are avoided, the comparison result of the measured values of pulmonary function parameters and the standard values of the pulmonary function parameters directly reflects the data processing accuracy of the pulmonary function detector, and thus the judging precision for the data processing accuracy of the pulmonary function detector is improved.

The present invention relates to a device for pulmonary function testing and a method therefor which diagnose pulmonary function on the basis of: the lung capacity of a subject represented by a respiration parameter; and a chest image obtained from impedance data of the chest of the subject. Accordingly, the present invention suggests "spriotomometry" whereby a global variable measured from the mouth of the subject and a local variable obtained by imaging the inside of the lung of the subject are processed and interpreted together, by employing the conventional spirometer and electrical impedance tomography (EIT) method together.

The invention provides an infant pulmonary function inspection device, and belongs to the technical field of medical care. The infant pulmonary function inspection device mainly comprises an operationtable for allowing a sick child to be placed, wherein an adjustable pillow is arranged at a position at the left part of the operation table; a lying region is arranged at the right part of the adjustable pillow; an instrument panel is arranged at a position on the left part of the adjustable pillow, of the operation table; a bracket structure is mounted above the instrument panel; a breathing mask is mounted on the bracket structure; a trachea and a communication cable can be hung on the bracket structure; the trachea is connected with the instrument panel and a blocker at the tail end of the breathing mask; the communication cable is connected with the instrument panel and a sensor; the instrument panel is connected with a gas tank arranged outside and a pulmonary function inspection display instrument; and a shielding hood is arranged on the operation table, and is movable. The infant pulmonary function inspection device disclosed by the invention can measure various pulmonary function inspection items at the same time, and besides, through the adjustable pillow, the inspection body position of the sick child is adjusted, so that the inspection result is more accurate.

A compact, on-airway, respiratory gas analyzer for performing pulmonary function tests incorporates an IR spectroscopy light guide having a curved, rather than linear, sample chamber that lies transverse to a direction of respiratory gas flow. Cooperating with the sample chamber is an impact plate that functions to steer respiratory and test gases impinging on the impact plate into the curved sample chamber. A source of IR energy is at one end of the sample chamber and an electro-optical sensor responsive to IR energy is disposed at an opposite end of the chamber. The respiratory gas analyzer also includes gas flow paths and valving for carrying out lung capacity and lung diffusion tests.

The present invention relates to a device (1) comprising at least a first flow channel (5) and a liquid space (3) for a liquid. The device (1) also comprises a second flow channel (7) arranged in a flow connection with the liquid space (3), and a steam space (4) arranged to receive steam forming in the liquid space (3). The first flow channel (5) is arranged in a flow connection with the steam space (4). The device (1) also comprises means (8) for conveying a gas flow from the outside of the device (1) via the second flow channel (7) to the liquid space (3), and means (6) for conveying a gas flow from the steam space (4) via the first flow channel (5) to the outside of the device (1). Furthermore, the invention relates to a method in the device (1). In the method, a gas flow to the device (1) is conveyed via the second flow channel (7) to the liquid space (3), for increasing the pressure in the liquid space (3). As a result of the pressure increase, steam produced in the liquid space (3) is received in the steam space (4). The gas flow is conveyed from the steam space (4) via the first flow channel (5) to the outside of the device (1).

The invention discloses a multi-purpose medical instrument internal structure disinfection machine, which includes a box body, an ozone generator connected with a positive pressure air pump, a negative pressure air pump and a control circuit are arranged in the box body, the ozone generator is connected with the first The negative pressure air pump is connected to the filter through the second conduit, the atomizer is arranged in the box, the atomizer is connected to the first conduit through the third conduit, and the control circuit controls the positive Compression pump, ozone generator, atomizer and negative pressure air pump are opened or closed, and described atomizer is provided with the hydrogen peroxide aqueous solution that volume percent concentration is 8%~12%, and the present invention is applied to various Disinfection of the inside of pipeline medical equipment, such as ventilator, anesthesia machine, lung function tester, extracorporeal circulation machine, artificial kidney dialysis machine, it can completely disinfect the inside of the contaminated instrument without being corroded or damaged.

The invention provides a lung function testing system. The system comprises an indicating unit, a collecting unit, a processor and a storage medium; the indicating unit is used for outputting respiratory mode guiding signals; the collecting unit is used for collecting respiratory data in the respiratory process of a testee; the processor is connected with the indicating unit and the collecting unit; the storage medium is used for storing multiple instructions, wherein when the instructions are executed by the processor, the processor calculates the respiratory data and compares the data with apreset condition to obtain a processing result, and the indicating unit is controlled to output the respiratory mode guiding signals according to the processing result. The invention further providesa lung function testing method. By arranging the indicating unit on the lung function testing system, the indicating unit outputs the respiratory mode guiding signals to guide the testee in respiration, the difference in artificial guidance is reduced, and the application range of lung function testing is greatly expanded.