164 results about "RESPIRATORY MOVEMENTS" patented technology

A combined respiratory and heart rate sensor for a mammal has a flexible support with a surface adapted to be positioned over the skin of a mammal. A pair of inductive coil or capacitive plate elements, spaced apart by a foam spacer having openings therein, are attached to the support surface and are capable of independently sensing respiratory movement of the mammal in a direction perpendicular to the support surface and producing an output signal proportional thereto. The heart rate sensor includes an LED attached to the flexible support capable, and at least two light-detecting elements spaced apart from the LED, each capable of independently sensing light radiation reflected through the skin and capillaries from the light-emitting element and producing an output signal proportional thereto. A barrier layer attached to the support shield from the light-detecting elements light radiation that is not emitted from the LED.

The invention discloses an image-guided lung interventional operation system which comprises an image acquiring module, a lung region reconstruction module, a lung respiratory movement model construction module, an operative instrument and operative region image space mapping module, a dynamic focus space-positioning and guide module and an another image acquiring module. The image acquiring module is connected with the lung region reconstruction module which is connected with the lung respiratory movement model construction module, the lung respiratory movement model construction module is connected with the dynamic focus space-positioning and guide module, and the another image acquiring module is connected with the operative instrument and operative region image space-mapping module which is connected with the dynamic focus space-positioning and guide module. Real-time space positioning of dynamic focuses is achieved, early diagnosis of carcinogenesis of lung nodule can be achieved, and error of space positioning precision is within 2mm.

A method and arrangement for detecting a leak in an anesthesia system. The method includes controlling respiratory movements by means of ventilator gas flows and measuring the ventilator gas flow added for an inspiration and removed for an expiration. The method also includes supplying a fresh gas flow for a respiration and measuring the fresh gas flow added for the respiration. The method further includes receiving information indicative of the measured gas flows, determining based on said received information both the gas volume added and the gas volume removed and comparing these determined gas volumes to each other. The method also includes determining based on comparing the anesthesia system leakage.

The present invention relates to a monitor respiration movements device to be used on humans and also on animals for controlling the respiration movements and to control the apnea periods on infants, wherein the device reduces the mortality rate caused by the sudden instant death syndrome (SIDS), wherein the device comprises an accelerometer and a micro controller, with the accelerometer including a motion detector and a plurality of output plugs, the micro controller includes a plurality of input sockets, and wherein the plurality of output plugs are connected to the plurality of input sockets and the micro controller includes signal outputs which are connected to an alarm.

Biometric identification methods and apparatuses (including devices and systems) for uniquely identifying one an individual based on wearable garments including a plurality of sensors, including but not limited to sensors having multiple sensing modalities (e.g., movement, respiratory movements, heart rate, ECG, EEG, etc.).

An apparatus, system, and method for monitoring a person suffering from a chronic medical condition predicts and assesses physiological changes which could affect the care of that subject. Examples of such chronic diseases include (but are not limited to) heart failure, chronic obstructive pulmonary disease, asthma, and diabetes. Monitoring includes measurements of respiratory movements, which can then be analyzed for evidence of changes in respiratory rate, or for events such as hypoponeas, apneas and periodic breathing. Monitoring may be augmented by the measurement of nocturnal heart rate in conjunction with respiratory monitoring. Additional physiological measurements can also be taken such as subjective symptom data, blood pressure, blood oxygen levels, and various molecular markers. Embodiments for detection of respiratory patterns and heart rate are disclosed, together with exemplar implementations of decision processes based on these measurements.

A sleep state of a subject is estimated from respiration signals that are readily detected without restraining the subject. From a voltage waveform based on respiratory movement of a person, positive peak values and the (time) interval between adjacent peaks are calculated. Also obtained is the area of a region that is enclosed by the voltage waveform and a time axis between peaks, and the average value and dispersion value of the obtained inter-peak areas are calculated. The calculated values are used to set a preliminary sleep state value for a given period, and sleep state values over plural periods are factored in to estimate a sleep state at a given time point.

The present invention relates to a monitor respiration movements device to be used on humans and also on animals for controlling the respiration movements and specially to control the apnea periods on infants. Furthermore the present invention is related to reduce the mortality rate caused by the sudden instant death syndrome (SIDS). The device comprises an accelerometer and a micro controller, said accelerometer includes a motion detector and a plurality of output plugs, said micro controller includes a plurality of input sockets, wherein said plurality of output plugs are connected so said plurality of input sockets and the micro controller includes signal outputs which are connected to an alarm means.

A system for stabilization based on respiratory movement includes a medical device configured to navigate inside of a patient, a tracking sensor affixed on the medical device and configured to track a location of the medical device, at least one motion sensor located on the patient and configured to sense respiratory movements of the patient, a computer configured to generate a respiratory model based on the respiratory movements sensed by the at least one motion sensor for a predetermined period and to stabilize a location of the medical device based on the respiratory model after the predetermined period, and a display configured to display a graphical representation of the medical device based on the stabilized location on a pre-procedure two-dimensional (2D) image or three-dimensional (3D) model.

The invention relates to a method for extracting a respiratory movement parameter from a one-arm X-ray radiography picture, which belongs to the crossed field of digital signal processing and medical imaging, and aims at separating the respiratory movement from the complex movement of an actual human body heart. The method comprises the following steps: selecting a group of architectural feature points (including the head and tail points of a vessel section) on a coronal artery vessel and tracking the motion curve of the architectural feature point along with the time in a sequence; and separating to obtain a bi-dimensional respiratory movement curve by the Fourier expansion and frequency-domain filtering method. In addition, in the invention, in order to describe the respiratory movement more intuitively and effectively, the bi-dimensional respiratory movement obtained from two different radiography visual angles is rebuilt according to the three-dimensional reconstruction theory of the mid point of a radiography system, therefore the three-dimensional respiratory movement is obtained. The invention has the advantages of better extracting result of the respiratory movement and wider applicability and flexibility, and meets clinical requirements.

An apparatus and method for supplying a breathing gas for a respiration. The apparatus includes a reciprocating unit configured to receive an inspiration gas flow and adapted to control respiratory movements. The apparatus also includes a gas mixer for supplying a fresh gas flow. The apparatus also includes a breathing circuit configured to conduct an expiration gas flow to the reciprocating unit and to conduct the fresh gas flow from the gas mixer for the respiration and to conduct the gas flow from the reciprocating unit for an inspiration, the breathing circuit comprising a CO2 remover configured to remove carbon dioxide from the gas. The apparatus also includes a first bypass passage configured to permit bypassing the reciprocating unit and connecting the breathing circuit to the inspiration gas flow upstream from the reciprocating unit.

The invention relates to a dynamic three-dimensional reconstruction method of single-arm X-ray angiogram maps, which belongs to the field of the intersection of digital image processing and medical imaging and aims to meet the requirements of the auxiliary detection and surgical navigation of cardiovascular diseases in clinical medicine. The invention provides a concept of 'dynamic vessel three-dimensional reconstruction', so that the angiogram maps of double visual angles at different moments are compensated for respiratory movement and cardiac movement. The dynamic three-dimensional reconstruction method can obtain the high three-dimensional reconstruction accuracy of coronary artery vessels, solve the problem that the automatic and reliable three-dimensional reconstruction is performed by multi-visual angle angiography maps with different time phases, assist in the detection and surgical navigation of the cardiovascular diseases effectively and meet the clinical requirement.

The invention discloses a respiratory motion compensation method for lung percutaneous puncture. The method comprises the following steps: constructing a four-dimensional visualization model by usingpre-operative 4DCT images; extracting a respiratory movement trajectory, selecting a target point and a skin insertion point based on the four-dimensional visualization model and respiratory movementtrajectory, forming a puncture path, and determining an initial position, direction and puncture depth of a puncture needle; and during intraoperative puncture needle insertion, acquiring respiratorysignals of a patient in real time by a respiratory monitoring device, inputting the respiratory signals into a control system of a puncture robot, and analyzing characteristic parameters of the respiratory signals by the control system to guide the puncture robot to iteratively adjust the needle insertion speed to ensure that a needle tip reaches the target point at a specified time, so as to compensate for tumor displacement caused by breathing. The method provided by the invention allows puncture to be performed in a state of free breathing, has a wider application range, and helps to reducepain of the patient and improve the success rate of surgery.

The method and the apparatus are used for monitoring a patient's breathing. A respiratory movement of the patient is detected by means of a thoracic expansion sensor that is placed near the rib cage and by means of an abdominal expansion sensor that is placed near the abdomen. Moreover, a phase difference is detected between a thoracic measuring signal delivered by the thoracic expansion sensor and an abdominal measuring signal delivered by the abdominal expansion sensor. The phase difference thus detected is monitored to determine whether it exceeds at least a phase threshold or whether it increases over time, and the presence of a disorder in the respiratory tract of the monitored patient is recognized on the basis of an increasing phase difference.

The invention discloses a six-degree-of-freedom respiratory compensation needle puncture robot compatible with CT. The robot comprises a wearable vest guide rail module, a breathing movement self-adaptive robot needle seat module and a puncture needle six-degree-of-freedom robot module. The wearable vest guide rail module is used for supporting the breathing movement self-adaptive robot needle seat module and driving the breathing movement self-adaptive robot needle seat module to perform posture adjustment and adaptation, and the puncture needle six-degree-of-freedom robot module is used for performing biopsy puncture operation and movement; the puncture needle six-degree-of-freedom robot module comprises a four-degree-of-freedom posture adjusting module and a needle inserting module, and a biopsy puncture needle on the needle inserting module is driven to perform biopsy detection cooperative movement in a breathing compensation following manner through cooperation of the four-degree-of-freedom posture adjusting module and the needle inserting module. According to the invention, no metal compact object exists in the CT section in the needle puncture operation process, the operation process is compatible with CT imaging, and the height distance of the puncture robot relative to the human body does not change along with breathing movement and can reach all puncture points.

The invention discloses a lung rehabilitation training instrument. The instrument comprises a host, a respiratory rate sensor and an upper limb movement device and/or an abdomen movement device, the respiratory rate sensor is electrically connected with the host, the respiratory rate sensor is used for sensing a respiratory rate of a trainer in real time, the upper limb movement device and/or theabdomen movement device selects a pneumatic movement device and/or an electric movement device, the respiratory rate of a trainee is sensed in real time through the respiratory rate sensor, the upperlimb movement device and/or the abdomen movement device is matched with the respiratory rate, the upper limb movement device synchronously drives double upper limbs to swing, and the abdomen movementdevice synchronously drives the abdomen to contract and expand, so that the double upper limbs and the abdomen move along with the respiratory rate. According to the lung rehabilitation training instrument and the using method thereof, lung function rehabilitation of a trainee can be assisted, and effective and regular respiratory movement can be recovered.

The invention, which belongs to the medical equipment technology field, relates to a respiratory gating indication method used for radiotherapy and an apparatus thereof. The method comprises the following steps that: a remote controller that includes a CPU microprocessor, an arrangement key, control keys, a liquid crystal display, an infrared remote controlled coding circuit and an emitting device of the circuit is arranged; an infrared reception and decoding circuit, a second CPU microprocessor, an auxiliary LED indicating lamp and a nixie tube display are arranged; an indicator comprising a third CPU microprocessor, a drive circuit, a main LED indicating lamp and a sounder is arranged; and a power source is arranged. According to the invention, clear light and sound indication can be provided for a patient; therefore, an influence of a respiratory movement can be effectively reduced; localization precision of thoracic-abdominal tumor radiation therapy target region can be substantially improved; unnecessary irradiation on a normal organ and a normal part can be effectively avoided; and occurrences of phenomena of damage and necrosis of normal cells can be avoided or reduced. Besides, the apparatus is cheap and can be applied conveneitnly. Moreover, the method and the apparatus can be widely applied to radiation therapy of several kinds of tumors like a thoracic tumor, an abdominal tumor, a lung tumor, a liver tumor, a renal tumor and a breast tumor and the like.

The invention discloses a 4D-CBCT imaging method based on motion compensation, and belongs to the field of computed tomography. The method comprises the following steps: firstly, acquiring high-quality 4D-CBCT data of a patient, and dividing the high-quality 4D-CBCT data into samples and label data; then, requiring a motion compensation learning convolutional neural network of 4D-CBCT data to be constructed, wherein the network is used for establishing mapping between different phase images; secondly, training the network by taking the sample and the label data as inputs to obtain an optimal network parameter weight; and finally, reconstructing 4D-CBCT projection data under clinical scanning with the assistance of the network, and acquiring a high-quality reconstructed image. According tothe method, reconstruction blurring caused by respiratory movement and noise and artifacts caused by data acquisition angle loss can be reduced to a great extent, the scanning period can be shortened.The radiation damage to a subject can be reduced, the quality requirements of clinical analysis and diagnosis can be met, and the tracking efficiency of lung tumors can be improved.

The invention relates to the field of health-protection medical instrument equipment, and discloses a respiratory-self-adaptation portable oxygen generator. The oxygen generator comprises an oxygen generating unit, a self-adaption impulse oxygen supplying unit and a control unit, wherein the oxygen generating unit is used for generating medical concentration oxygen, the self-adaption impulse oxygen supplying unit comprises an impulse oxygen generating unit and a control unit, and the oxygen impulse generating unit comprises an oxygen supplying pipeline, an electromagnetic valve and a three-waypiping; the oxygen supplying time starting point T1 and the oxygen supplying duration t are determined by the control unit according to respiratory curve data of a user, when the oxygen supplying time starting point T1 is reached, the electromagnetic valve is switched on by the control unit to supply oxygen, and when the oxygen supplying duration t is reached, the electromagnetic valve is controlled to be switched off by the control unit to end oxygen supplying. The respiratory-self-adaptation portable oxygen generator has the advantages that the respiratory movement of the user can be effectively recognized, oxygen self-adaption supplying is achieved for the user to breathe, and oxygen supplying control is accurately conducted.

The invention discloses a ventilating shaft respiratory warmer. It includes respiratory chassis and upper cover board placed on top of the respiratory chassis, the upper cover board is equipped with bidirectional respiratory through-hole, the valve base sealed mouth of upper cover board is equipped with a set of respiratory movement components, the respiratory movement components presses itself on the sealed valve base through the guiding of conductor bar installed in the upper cover board. The invention has reasonable structure; the cover board is equipped with bidirectional respiratory channel. According the respiratory cover board on the respiratory channel, the warmer separates the inside and outside air in normal condition to preventing rain and other debris into well and the bad smell out from the well into air and pollution; when the channel needs respiratory, the respiratory cover is opened by the differential pressure between the inside and outside well to ensuring the air input and output needed, and it also can protect the devices in well in cold areas to ensuring the pressure water conduit safe operation.