30 results about "Cerebral oxygen" patented technology

A system and method for accurately producing MR images of selected vascular compartments includes employing a control scan and a tag scan, each including velocity selective modules that suppress signal from blood flowing faster than a given cutoff velocity, to acquire control and tag sets of NMR data that may be subtracted to produce a compartment-specific MR image that is substantially free of information from stationary tissues and blood outside the selective vascular compartments. Accordingly, physiological parameters, such as oxygen saturation (SaO2), oxygen extraction fraction (OEF), and cerebral metabolic rate of oxygen (CMRO2), can be generated from the compartment-specific images. Further still, kinetic curves of oxygen exchange can be created, thus providing detailed insight into oxygen exchange dynamics.

A method for providing and adjusting cerebral cooling in response to changes in a physiological parameter. A spray having a boiling point between 38-300° C. is delivered to the surface of a patient's nasal cavities. The spray causes cooling by direct heat transfer through the nasopharynx and hematogenous cooling through the carotids and the Circle of Willis. A physiological parameter, such as cerebral temperature, changes in cerebral blood flow or brain oxygenation is monitored. The delivery rate of the spray is adjusted in response to the physiological parameter.

The invention relates to a detection device and a manufacturing method thereof, and the device comprises an electrode assembly which is used for receiving an electroencephalogram signal of a detected object; a light source assembly used for emitting light waves to the detected object; a photoelectric detection component used for receiving an optical signal obtained after the optical waves are reflected or scattered by the brain of the detected object, and performing photoelectric conversion on the optical signal to obtain a brain oxygen detection signal; a processing component used for respectively processing the electroencephalogram signal and the brain oxygen detection signal and respectively acquiring a first detection result and a second detection result of the brain of the detected object; and a flexible substrate used for bearing the electrode assembly, the light source assembly and the photoelectric detection assembly. The multi-channel electroencephalogram and brain oxygen synchronous same-area detection is performed on the detected object, and the flexible substrate is adopted for bearing, so that higher time resolution and spatial resolution can be ensured, the detection accuracy is improved, the natural integration of the detection device and the detected object is realized, the anti-interference capability is effectively improved, and the robustness is good.

The invention discloses a near-infrared cerebral oxygen detection system and method. The near-infrared cerebral oxygen detection system is provided with multiple detection units, thereby being conductive to improving the detection resolution ratio; in addition, near-infrared light sources and photoelectric sensors are staggeredly arranged, thereby reducing the reception of interference signals toreduce the noise of the interference signals, effectively improving the accuracy and precision of cerebral blood oxygen data, and solving the technical problem of low data precision of a near-infraredspectrum cerebral oxygen detection system in the prior art. In addition, the near-infrared cerebral oxygen detection system adopts a producer / customer mode in data reading and processing links, thereby effectively improving the running efficiency of a program, increasing the acquisition speed of the cerebral blood oxygen data, and improving the real-time property of data acquisition.

The invention discloses a method for controlling equipment based on brain signals, its control equipment, and a human-computer interaction system. By periodically acquiring brain electrical signals and brain oxygen signals within a preset period of time, the representative brain electrical signals and brain oxygen signals are respectively generated. EEG waveform curves and brain oxygen waveform curves whose values ​​change within a preset period; determine whether the EEG waveform curves and brain oxygen waveform curves meet the conditions for controlling the controlled device to perform preset operations; When the oxygen waveform curve meets the conditions, the controlled equipment is controlled to perform preset operations. Compared with the method of controlling equipment based only on EEG signals in the prior art, the above-mentioned equipment control method provided by the present invention simultaneously detects EEG signals and brain oxygen signals to generate EEG waveform curves and brain oxygen waveform curves, two kinds of data At the same time, it matches and judges the conditions for controlling the controlled equipment to perform preset operations, which can avoid misoperation caused by single data jumps and other situations, and improve the accuracy of the controlled equipment.

The invention discloses a non-invasive intracranial pressure monitoring method and device. The monitoring method: first collect head pulse wave data, temperature data and ECG data, then use the temperature data to correct the head pulse wave, and then use the corrected head pulse wave The head pulse wave data is used to calculate the local cerebral oxygen saturation, and then the corrected head pulse wave data and ECG data are used to calculate the pulse wave propagation time, and finally the intracranial pressure value. The present invention uses the pulse wave propagation time to calculate the intracranial pressure value, and introduces local cerebral oxygen saturation and temperature data for correction, which can reduce the influence of temperature and local cerebral oxygen saturation on the monitoring accuracy of intracranial pressure, and quickly reflect the intracranial pressure. changes in internal pressure.

The invention discloses an intravenous injection medication method for cardia-cerebrovascular diseases. The compatibility of medicines comprises pulse-activating powder, radix astragali, flos carthami, a Qingkailing compound, tetramethylprazine, radix salviae miltiorrhizae, puerarin, vitamin C and a dexamethasone sodium phosphate injection; all preparations are proportioned according to the stipulation of the specification, and the injection consists of pulse-activating powder, radix astragali, flos carthami, the Qingkailing compound, tetramethylprazine, radix salviae miltiorrhizae, puerarin,vitamin C, dexamethasone sodium phosphate, 0.9% sodium chloride and a 5% glucose injection. The using method comprises the following steps: taking the preparations to be dissolved into 250 ml or 500 ml of 0.9% sodium chloride or 5% glucose injection respectively every day, and carrying out intravenous drip, once a day for 15 days as a course of treatment. The intravenous injection medication method is simple in operation, high in cure rate, low in price, convenient for material drawing and free of risk, and also has the effects of effectively curing and dilating coronary artery and blood vessels of brain, increasing coronary flow, reducing cardiac and cerebral oxygen consumption, reducing blood viscosity, resisting platelet aggregation, improving microcirculation and enhancing immunologicfunction; and moreover, the combination of Chinese traditional and Western medicine also highlights the characteristics of Chinese traditional medicine.

The invention discloses a cardio-pulmonary resuscitation feedback control method and system, and relates to the technical field of medical care. The method comprises the steps of collecting brain oxygen signals of a patient; preprocessing the brain oxygen signals of the patient; separating out first signals and second signals from the preprocessed brain oxygen signals through independent componentanalysis, wherein the first signals are cardio-pulmonary resuscitation signals, and the second signals are spontaneous circulation signals; according to the first signals and the second signals, adjusting and controlling cardio-pulmonary resuscitation of the patient. By means of the method and system, the technical problems in the prior art that during cardio-pulmonary resuscitation, whether or not the patient restores spontaneous circulation is difficult to judge, cardio-pulmonary resuscitation has negative effects, and the patient cannot be effectively cured are solved. The curative rate ofcardio-pulmonary resuscitation can be greatly increased, and the method and system have the technical advantages of being high in pertinence, noninvasive, high in safety coefficient and easy to operate.

A device for measuring brain oxygen level of a subject, including a probe (210) and a detecting means (220), which are respectively coupled to a processor (230). According to the example, the probe (210) includes three light sources (215a, 215b, 215c) that simultaneously emit the first, second, and third NIR wavelengths across the brain of the subject. The first NIR wavelength is the isosbestic wavelength for oxy-hemoglobin (HbO2) and deoxy-hemoglobin (Hb), the second NIR wavelength is shorter than the first NIR wavelength, and the third NIR wavelength is longer than the first NIR wavelength. The detecting means (220) includes a first, second and third detectors (221, 222, 223) for respectively detecting the NIR intensities of the first, second and third NIR wavelengths traveled across the brain. The processor (230) is configured to determine blood oxygen level based on the measured NIR intensities of the first, second and third NIR wavelengths by use of build-in algorithm derived from Beer-Lambert Law. And method of detecting brain hematoma of a subject by use of the present device.