112 results about "Respiratory muscle" patented technology

A respiratory monitoring apparatus that detects changes in physiological parameters relevant to respiration, including blood oxygen and blood volume, using near infrared spectroscopy. Methods for diagnosing respiratory-related events including hypoxia index, hypopnea, arousal, tissue oxygen debt, and respiratory muscle events or distinguishing central from obstructive sleep apnea are also disclosed.

Devices and methods were discovered that successfully provided patient autonomous control of both hyolaryngeal elevation, anterior hyoid motion and opening of the upper esophageal sphincter for swallowing by intramuscular stimulation of two muscles. The technology allows patient self stimulation of swallowing and can return oral feeding to dysphagia patients. Indwelling electrode stimulation of only two muscles generated as much as 80 % of normal synergistic movement leading to swallowing. The devices and methods also are useful for control of other upper respiratory muscle groups involved in speech and voice. Calibration techniques may be used in combination for greater freedom in setting and using electrodes over extended implantation time periods. These methods and devices can control complex movements of body solids such as bone and cartilage and tissues by electro stimulation of a minimum set of muscles simultaneously.

Systems and methods are proposed for non-contact monitoring of spatio-temporal mechanics comprising motion patterns of respiratory muscles, lungs and diaphragm. The depth capable sensors system is comprised of modules, including a depth estimation module, a reference shape generation module, a region of interest shape estimation module, and a shape comparison module. A recommender module is optionally included. The acquisition of spatio-temporal respiratory mechanic data comprising a time varying sequence of spatially dependent representations of the respiratory mechanics of the subject are processed for identifying differences between the subject's actual respiratory mechanics and desired mechanics that can improve the health of the subject, or identify particular maladies.

The invention discloses a pulmonary rehabilitation training system based on respiratory-muscle electrical signal feedback. The pulmonary rehabilitation training system comprises a controller, a magnetic directional valve, a flow sensor and an electrode connected with the controller through an amplifying circuit, wherein the magnetic directional valve and the flow sensor are connected with the controller. One way of the magnetic directional valve is communicated to an airway interface through the flow sensor. The other two ways of the magnetic directional valve are communicated with a pressureproportion regulating valve A and a pressure proportion regulating valve B, and the magnetic directional valve is switched and selected in the two ways. The pressure proportion regulating valve A is connected with a medical positive pressure air source. The pressure proportion regulating valve B is connected with a medical negative pressure air source. The pulmonary rehabilitation training systemis mainly used for a patient difficult in mechanical ventilation weaning, senses the tolerance of the patient in the pulmonary rehabilitation training process, intelligently adjusts the pressure and flow of breathing airflow in the rehabilitation training process, improves interpersonal coordination degree, avoids man-machine counteraction and lung injuries and promotes recuperation of autonomousrespiration ability.

The present invention relates to a manpower respirator for treatment of obstructive sleep apnea, which comprises a pressure generator (3) for generating an artificial atmosphere with a therapy pressure (pact), a pressure regulating device (10) for controlling the pressure generator, and a respiration soft tube (6) as well as a respiratory mask (7) for supplying the artificial atmosphere to a patient (2). The manpower respirator is characterized in that it has a controller (13), which is used for continuously determining a loss pressure (Delta p) resulting over a respiratory tract resistance (RAW) of a respiratory tract of the patient, and for proportional adjustment of the therapy pressure progress in the process of the determined loss pressure. The manpower respirator reduces the burden of the patient breathing muscle distinctly and the result of delay treatment, and makes the treatment process be more comfortable.

The method and system are for sealing/unsealing (regulating) airway leaks occuring between the ventilator circuit and respiratory airways during lung ventilatory support in response to myoelectrical activity of diaphgram. Myolectrical activity of a patient's respiratory-related muscle is sensed to detect respiratory effort, and to produce a myoelectrical signal representative of the sensed muscle myoelectrical activity. Respiratory flow and pressure can also be measured to produce respective respiratory pressure and respiratory flow signals. A logic trigger sealing/unsealing of airway leaks in relation to the myoelectrical signal, respiratory flow signal and/or respiratory pressure signal to assist respiration of the patient. The amplitude of the myoelectrical signal Is compare to a given threshold, and airway leaks are sealed when the amplitude of the myoelectrical signal is higher than this threshold. Increment of myoelectrical signal amplitude can be also detected to trigger the airway leak regulating device to seal the airway leaks, while decrement of the myoelectrical signal amplitude can be detected to unseal the airway leaks and thus permit air evacuation from the patient's lungs.

A mechanical ventilation device (10) includes a mechanical ventilator. At least one airway sensor (24, 26) is configured to measure at least one of airway pressure and airway air flow as a function of time for a patient on the mechanical ventilator. At least one microprocessor (28, 30) is programmed to analyze at least one of airway pressure and airway air flow measured by the airway sensor to detect a spontaneous respiration anomaly in respiratory muscle pressure as a function of time generated by a patient on the mechanical ventilator. A display component (22) is configured to display an indication of a spontaneous respiration anomaly detected by the anomaly detection component.

PCT No. PCT/JP97/00954 Sec. 371 Date Jan. 21, 1999 Sec. 102(e) Date Jan. 21, 1999 PCT Filed Mar. 24, 1997 PCT Pub. No. WO97/35577 PCT Pub. Date Oct. 2, 1997(+)-N,N'-Propylene dinicotinamide or pharmaceutically acceptable salts thereof are outstanding drugs of high safety that can heal or ameliorate spinal cord injuries, prevent the transition from an incomplete cord injury to a complete injury, and minimize the consequences of spinal cord injuries including neurological disorders such as quadriplegia, paralysis of the respiratory muscle, damage to sensory functions and impairment of reflex functions, as well as impaired urinating or defecating functions.

The invention discloses a breather valve, a breath support device with a respiratory muscle exercise mode and a control method. The breath support device with the respiratory muscle exercise mode comprises the breather valve, wherein an air inlet, a pressure relief port and a breather valve outlet are formed in a valve body of the breather valve; an air inlet switch valve is arranged between the air inlet and the breather valve outlet; a pressure relief port pressure regulating valve is arranged between the breather valve outlet and the pressure relief port; the air inlet switch valve is provided with an air inlet switch valve electromagnet, the opening degree of the air inlet switch valve is linearly adjusted through the air inlet switch valve electromagnet, the pressure relief port pressure regulating valve is provided with a pressure relief port pressure regulating valve electromagnet, and the opening degree of the pressure relief port pressure regulating valve is linearly adjustedthrough the pressure relief port pressure regulating valve electromagnet. The pressure and flow of inhalation and exhalation can be separately controlled on the basis of the breather valve, and stabletarget exhalation pressure can be obtained at the breather valve outlet in an exhalation resistance mode; stable target inhalation pressure can be obtained at the breather valve outlet in an inhalation resistance mode, and the breather valve is convenient to use.

The invention relates to the field of medical apparatus and instruments, and provides a respiratory function training instrument. The respiratory function training instrument comprises a respiratory tube and a respirator mounted at one end of the respiratory tube, wherein the respiratory tube is internally provided with a resistance component which includes a resistance ring, a resistance ball and at least two elastic bodies; the outer circumference of the resistance ring is connected to the inner wall of the respiratory tube, and the inner circumference of the resistance ring is in interference fit with the resistance ball; and the elastic bodies are separately disposed on both sides of the resistance ring, one ends of the elastic bodies are connected to the inner wall of the respiratory tube, and the other ends of the elastic bodies are connected to the resistance ball. The respiratory function training instrument is provided with the resistance component to enable a patient to train the contraction and relaxation of respiratory muscles such as a diaphragm muscle in the inspiration process and the expiration process, thereby improving the strength and tolerance of the respiratory muscles to improve the training effect; and meanwhile, the respiratory function training instrument is simple in structure and convenient to carry.

The invention discloses a remote rehabilitation training guidance system for chronic respiratory failure patients. The remote rehabilitation training guidance system comprises a function evaluation and rehabilitation training equipment group, a patient mobile terminal, a cloud server and a doctor mobile terminal, the system is characterized in that the function evaluation and rehabilitation training equipment group interacts with the patient mobile terminal, and the patient mobile terminal and the doctor mobile terminal communicate with the cloud server. According to the system, after obtained respiratory muscle test evaluation results, limb muscle force test evaluation results and sputum excretion ability test evaluation results of a patient are graded, recommended rehabilitation prescriptions corresponding to the grades are generated, and numeralization description is conducted on exercise intensity; the personalized customization of the recommended rehabilitation prescription can be realized, and the exercise amount of the patient in the home rehabilitation training can be accurately controlled, so that the patient is within the beneficial range of the exercise amount.

A system and method comprise sampling a rate of airflow in a patients lungs during inspiration and/or expiration of the patient and outputting a corresponding airflow signal. Respiratory muscles signals of the patient are simultaneously sampled with the sampling of the airflow and outputted as a corresponding activity signal. The airflow signal and the activity signal are simultaneously displayed wherein a comparison of at least the airflow signal and the activity signal indicates physical properties of a respiratory system of the patient.

The invention discloses a method and device for treating central sleep apnea. The method includes the following steps that 1, surface electromyogram signals of respiratory muscles are collected; 2, filtering is carried out; 3, enveloping calculation of the surface electromyogram signals is carried out; 4, respiratory electromyogram sign signals are generated; 5, the oxyhemoglobin saturation of a patient is detected, wherein an oxyhemoglobin saturation probe clamped to a finger can be used; 6, if no respiratory electromyogram sign signal is collected in continuous 10 seconds and the decrease rate of oxyhemoglobin saturation exceeds 3%, external pacing is carried out on respiratory muscles. The method is applied to the device. The method and the device are precise, effective and good in use effect.

A medical ventilator (10) performs a method including: receiving measurements of pressure of air inspired by or expired from a ventilated patient (12) operatively connected with the medical ventilator;receiving measurements of air flow into or out of the ventilated patient operatively connected with the medical ventilator;dividing a breath time interval into a plurality of fitting regions (60); and simultaneously estimating respiratory system's resistance and compliance or elastance, and respiratory muscle pressure in each fitting region by fitting to a time series of pressure and air flow samples in that fitting region. In one approach, the fitting includes parameterizing the respiratory muscle pressure by a continuous differentiable function, such as a polynomial function, over the fitting region.In another approach, the fitting is to an equation of motion of the lungs in each fitting region, while monotonicity constraints and inequalities bounding at least the respiratory muscle pressure P mus (t) and respiratory system's resistence R and compliance C are applied to the respiratory muscle pressure in each region.

The invention discloses a method and device for treating central sleep apnea. The method comprises the following steps of 1) collecting surface electromyographic signals of respiratory muscles; 2) filtering by a filter; 3) performing envelope calculation on the surface electromyography signals; 4) generating electric mark signals of the respiratory muscles; 5), detecting blood oxygen saturation ofa patient by using a blood oxygen saturation probe clamped to a finger; 6), if the electric mark signals are not sampled in 10 seconds and the blood oxygen saturation drops by 3% or above, conductingexternal pacing on the respiratory muscles. The method is applied to the device. The method and device have the advantages of being accurate and effective, and the use effect is good.

The present invention relates to a system (10) and a corresponding method for estimating the respiratory drive (R_DRIVE) of mechanically ventilated patients, and for preferably apportioning this respiratory drive into one, or more, components related to the chemical drive—i.e. the drive due to the chemoreceptor response—and/or the muscular drive—i.e. the contraction of respiratory muscles, for example the diaphragm. The principle of the invention is that respiratory drive can be obtained from measuring the patient's response to small changes in mechanical ventilation settings (Vt_SET), and that this can be apportioned into chemical and/or muscular effects depending upon the changes in respiratory frequency, and/or arterial or end tidal CO₂ levels, and/or arterial blood p H.

The invention discloses a method and device for treating the central sleep apnea. The method includes the following steps that: 1) the surface electromyographic signals of respiratory muscles are collected; 2) filtering is carried out, so that undesired components can be filtered out; 3) the envelope of the surface electromyographic signals is calculated; 4) respiratory muscle electric mark signals are generated; 5) the blood oxygen saturation of a patient is detected, and a blood oxygen saturation probe which clamps a finger can be adopted; and 6) if respiratory muscle electric mark signals have not been sampled for 10 consecutive seconds, and the blood oxygen saturation is reduced by more than 3%, in vitro pacing is performed on the respiratory muscles. The method and device for treating the central sleep apnea of the invention have the advantages of high accuracy, high effectiveness and good use effect.