20 results about "RESPIRATORY MOVEMENTS" patented technology

FIELD: cardiology.SUBSTANCE: used as a component of the first stage of cardiac rehabilitation in patients with chronic heart failure (CHF), as well as an auxiliary component at all stages of cardiac rehabilitation. Warm-up exercises are performed – stretching exercises and movements in the joints of the upper body, followed by a basic set of breathing exercises lasting from 15 to 30 minutes, at least once a day, at least 5 days a week, for at least 8 weeks. At the first stage, the main set of exercises includes four exercises performed in sequence: abdominal breathing, chest breathing, breathing involving the shoulder muscles, breathing slowing. The first three exercises are performed for 5–10 breathing cycles with an interval between exercises of at least 1 minute, the fourth exercise contains 5–15 cycles, where each cycle includes an inhalation through the first nostril, followed by an exhalation and inhalation through the second nostril, then an exhalation through the first nostril . In the second and subsequent stages, the main set of exercises includes two exercises performed sequentially: an exercise for full breathing and an exercise for slowing down breathing. The full breathing exercise involves sequentially performing abdominal breathing, chest breathing, and breathing with the involvement of the shoulder muscles throughout one inhalation. The exhalation is performed in reverse order. The number of cycles of the full breathing exercise at the second stage is 15–20. The duration of each stage is at least 2 weeks, where at each subsequent stage, starting from the second one, the duration of the exercises performed in the main complex is increased by increasing the number of exercise cycles. Also the duration of inhalation and exhalation is increased when performing exercises to slow down breathing. The method improves the biomechanics of breathing: increases the depth of breathing, reduces the frequency of respiratory movements, increases the efficiency of breathing and reduces the activity of the inspiratory metaboreflex.EFFECT: exercise tolerance in patients with CHF improves.3 cl, 6 dwg, 3 ex

This invention belongs to the field of image processing technology and specifically discloses a method and system for extracting respiratory motion features of the body surface based on dynamic region updating. The method includes: collecting temporal point cloud data of the chest and abdomen of a subject during respiration; determining an initial region of interest based on the three-dimensional point cloud and dividing it into multiple pseudo-voxel blocks; calculating the geometric center of the midpoint of each pseudo-voxel block to obtain a region update score characterizing the activity level of the pseudo-voxel block; when the region update score of a pseudo-voxel block is higher than a preset threshold in multiple consecutive time windows, it is included in an active pseudo-voxel set; determining a cross-window stability score based on the salience of the active pseudo-voxel blocks in each time window, thereby selecting stable and salient regions from the active pseudo-voxels; extracting the phase propagation features and cross-window stability scores of the stable and salient regions to obtain the respiratory motion features of the body surface. This invention can achieve stable and accurate extraction of respiratory motion features based on temporal body surface point clouds.

The embodiment of the application provides a cascade anti-interference circuit suitable for an electrocardio monitoring device, which comprises a sliding mean filter module, a notch filter module, a lifting wavelet decomposition module, a threshold calculation module, a threshold processing module and a lifting wavelet reconstruction module; while ensuring a small circuit scale, the ECG signal collected by the wearable electrocardio monitoring device is subjected to hierarchical noise reduction processing, and high signal-to-noise ratio ECG signal output is realized; for the ECG signal collected by the wearable electrocardio monitoring device, first, sliding mean filtering is performed to filter out baseline drift noise caused by human respiratory movement and other activities; the power frequency interference caused by the wired and wireless connection of the electromagnetic environment around the device is suppressed by using the notch filter module; finally, wavelet noise reduction is realized by using the lifting wavelet decomposition and reconstruction and threshold noise reduction method, the electromyographic interference caused by the autonomous or unconscious movement of the wearer is suppressed, and high signal-to-noise ratio ECG signal is output, which is used for physiological parameter extraction and electrocardio diagnosis.

Analog breathing biofeedback device The invention relates to an analog respiratory biofeedback device for visualizing the respiratory rate or breathing movement of a person. characterized by the fact that The breathing movement of the user is detected by a sensor (5) lying on the stomach and lightly attached with a Velcro strap (6). A strain gauge built into the sensor (5) detects the person's breathing movement and transmits the signal to a control unit (7), which amplifies the signal proportionally and passes it on analogously to an LED display (4).

The application discloses a new-born umbilical protrusion treatment device and method, relates to the technical field of medical devices, and comprises a ring-shaped fixing seat and a first component, wherein the first component comprises a fan beam for adapting to different protrusion sizes and adjusting the surrounding diameter, and the fan beam is rotationally connected with the ring-shaped fixing seat; through the setting of the first component, the precise adjustment of the surrounding diameter is realized through the cooperation of the fan beam and multiple components such as the engaging body, flexible adjustment and rapid locking, and the device is suitable for different specifications of small to large umbilical protrusion cases; meanwhile, the side wing fixing belt is designed by using elastic cloth and magic tape, the tightness can be flexibly adjusted according to the body type of the new-born, and it is ensured that the ring-shaped fixing seat is always attached to the skin and does not affect the respiratory movement during the treatment process; the multi-dimensional adaptive design solves the problem that the size of the traditional device is fixed and it is difficult to adapt to individual differences, and meets the treatment requirements of different new-born umbilical morphologies and changes in the disease.

This application discloses a method and system for determining and providing feedback on the effectiveness of training based on real-time respiratory data analysis, relating to the field of medical rehabilitation technology. The method includes: collecting continuous respiratory signals from a patient during a single respiratory training session, extracting respiratory characteristic parameters from multiple dimensions such as the inspiratory ascent slope and the duration of the expiratory plateau; identifying the current training type and retrieving the corresponding set of effectiveness determination rules; jointly evaluating the multi-dimensional parameters against the rule set to generate an effectiveness determination result; and when deemed invalid, analyzing the respiratory movement defect pattern, generating corrective guidance information matching the training type and deviation characteristics, and outputting it to the patient. This application avoids coarse evaluations relying solely on training duration or number of sessions, supporting accurate judgment and closed-loop feedback of the quality of home-based respiratory training.

This invention discloses a biomimetic system simulating lung tissue, its manufacturing method, and a method for controlling microfluidics using this biomimetic system. The biomimetic system comprises lung epithelial cells, lung fibroblasts, and human umbilical vein endothelial cells isolated from human lungs, and is perfused with microfluidics. Gas and a fluid including culture medium can be perfused into the internal chambers of the system, simulating similar respiratory movements. Even after more than a week following perfusion, the three types of cells within the system can survive. Furthermore, pH and pO2 within the chambers can be monitored using pH and gas partial pressure sensors within the system, allowing the three types of cells to be exposed to the external environment or drugs under conditions similar to those of a living lung. This enables research in a wide range of fields, including modeling lung diseases caused by harmful substances and testing the efficacy of therapeutic drugs. It is also applicable to in vitro disease modeling and customized drug formulation.

This invention provides a multi-instrument intelligent collaborative training method based on respiratory motion phase determination, comprising the following steps: constructing a three-dimensional virtual anatomical model including the urethra, bladder, ureter, and kidney, and establishing an interactive connection between the force feedback handle of the simulated surgical instrument and the three-dimensional virtual anatomical model; selecting respiratory samples from a preset database and sending them to the three-dimensional virtual anatomical model, which then simulates the changes in other organs and tissues during lung respiration; collecting kidney motion data from the three-dimensional virtual anatomical model and dividing the kidney motion phase based on the motion data; generating instruction commands based on the kidney motion phase and the surgical instrument, and visually displaying the instruction commands; and having the user perform simulated training through the force feedback handle according to the instruction commands, with reinforcement learning used to optimize the training movements. By introducing kidney motion changes caused by lung respiration, the method can simulate real surgical situations and improve training effectiveness.

The present application relates to a kind of system and method for stabilizing the spine of patient for spinal surgery, system includes: the dynamic compensation support device of patient trunk is configured as independently controllable displacement provides dynamic compensation support method to trunk, sensing component for real-time monitoring and acquisition the respiratory motion signal, body pressure distribution and spinal posture data of patient, head adjustment component and control module for synchronously adjusting the posture of patient head and neck, to coordinate the dynamic deformation of cervical vertebra and thoracic vertebra, maintain the overall alignment of spine, control module controls the collaborative motion of the multiple support body unit and head adjustment component, to dynamically compensate the spinal displacement caused by breathing, so that the target segment of spine is kept spatially stable during operation;Method is executed using the system.The implementation of the technical scheme of the present application can realize dynamic, adaptive, high-precision spinal stabilization without interfering with the normal breathing of patient, while having low cost and high versatility.

Disclosed are a biomimic system simulating lung tissue, a method for manufacturing same, and a microfluidic control method using same, wherein the biomimic system comprises lung epithelial cells and lung fibroblasts, which are isolated from human lungs, and commercially available vascular endothelial cells, and wherein a microfluid flows through the biomimic system. Each chamber inside the corresponding system can allow a fluid, which contains gas and a medium, to flow therethrough and simulate respiration-like movement, wherein all of the three types of cells can survive inside the system even when one week or more have elapsed after through-flow of the fluid. In addition, the pH and pO2 in the chamber can be monitored by using a pH sensor and a gas partial pressure sensor inside the system, and thus the three types of cells inside the system can be exposed to external environments, drugs, and the like under the same conditions as in the lungs in vivo. Therefore, a wide range of studies including modeling of lung diseases by harmful substances and testing of therapeutic drug efficacy can be conducted, and further, the utilization to in vitro disease modeling, customized medicine prescriptions, and the like can also be made.

The present application relates to a kind of multi-degree-of-freedom active respiratory compensation system and method for spinal surgery, system includes the spinal column connecting module for being rigidly connected with the spinous process of the specific segment of the spine of patient and the operation execution module, the trajectory data of the spinous process of the specific segment with periodic respiratory movement is acquired and stored in motion learning and storage module, for gathering the respiratory monitoring module of patient respiratory phase signal, for according to the respiratory monitoring module patient respiratory phase signal gathered, the control module for generating compensation control instruction by calling pre-stored trajectory data, and for according to the compensation control instruction, relevant action is executed, so that the operation execution module is displaced with the spinous process of the specific segment movement synchronization displacement compensation execution module;The compensation degree of freedom of compensation execution module includes translation along Z axis and Y axis and rotation in XZ plane and YZ plane.The present application does not rely on external navigation system, realizes efficient and accurate compensation, and structure is simple, low in cost.

The application provides a scoliosis orthosis device, which comprises an orthosis, a plurality of air bags, a plurality of second pressure sensors and a control box. The plurality of air bags are arranged on the orthosis respectively, the second pressure sensors are arranged between the air bags and the orthosis, and the control box is electrically connected with the pressure sensors and is configured to: acquire the orthotic force applied to a user by the air bags; identify the exhalation time period and the inhalation time period of the user according to the orthotic force applied to the user by the air bags; pressurize the air bags in the exhalation time period and depressurize the air bags in the inhalation time period, so that the difference between the orthotic forces received by the user in the exhalation time period and the inhalation time period is less than a specified threshold. Through the device, the pressure can be timely reduced during inhalation and appropriately increased during exhalation, thereby effectively reducing the sudden change of the orthotic force caused by the breathing movement, avoiding the discomfort of the user caused by the sudden increase or decrease of the orthotic force, and significantly improving the comfort of the user during the orthotic process.

This invention provides a biomimetic microfluidic device for simulating the three-dimensional structure of alveoli. The fabrication method includes: preparing an inverse opal membrane; bonding the inverse opal membrane to the bottom of a transwell chamber structure (with the bottom filter membrane removed); bonding the top of the transwell chamber to a perforated plate cover; inserting one end of a gas delivery tube through the perforation in the perforated plate cover into the transwell chamber; and connecting the other end to an injection pump; culturing alveolar epithelial cells and vascular endothelial cells on the front and back sides of the inverse opal membrane, respectively, to obtain the biomimetic microfluidic device. The biomimetic microfluidic device provided by this invention can achieve three-dimensional stretching under the action of a microfluidic injection pump, simulating the periodic stretch-recovery process of human lung respiratory movement in vitro. The fabrication method is simple and reliable.

A multifunctional integrated hydrogel, its preparation method, and its applications are disclosed. The hydrogel base system is constructed using gelatin and sodium alginate, natural polymers with excellent biocompatibility. Molecular structure modification enhances tissue adhesion. Phenylboronic acid-modified gelatin retains gelatin's good biocompatibility and cell affinity while also providing dynamic covalent cross-linking capabilities through phenylboronic acid groups. Oxidized sodium alginate, while maintaining its inherent biosafety, reduces its molecular weight through oxidation, improving degradation performance. Simultaneously, the aldehyde groups on its molecular chain serve as efficient cross-linking sites. PBA-Gel and OSA react with Schiff bases via dynamic borate ester bonds to form a double-network hydrogel. This system exhibits excellent injectability, self-healing properties, and strong wet adhesion to biological tissues. This hydrogel can be precisely delivered to pleural rupture sites via a minimally invasive catheter, rapidly gelling and tightly adhering to irregular wound surfaces. Its strong tissue adhesion resists intrathoracic pressure fluctuations and fluid erosion caused by respiratory movements, solving the problems of easy detachment and incomplete sealing associated with traditional occlusive agents.

A device detects and treats signs of apnea or hypopnea. The device includes a respiratory detection unit configured to detect signals related to respiratory movement in a subject. The device also includes a sleep detection unit configured to detect signals related to the subject's sleep state. The device includes a control unit. The control unit is configured to receive the detected signals related to the subject's respiratory movement from the respiratory detection unit and determine the amplitude of the respiratory movement; and to receive signals related to the subject's sleep state from the sleep detection unit and determine the subject's sleep-wake state. The control unit or device determines whether the subject is in a state of hypopnea or apnea based on the amplitude of the respiratory movement and the sleep-wake state.

This application discloses a method and apparatus for detecting sleep apnea. The method includes: acquiring a thermal imaging video of a target subject during sleep; determining a first respiratory airflow signal and a first respiratory motion signal of the target subject in the video; segmenting the first respiratory airflow signal and the first respiratory motion signal using a preset sliding window to obtain second respiratory airflow signals and second respiratory motion signals under multiple time windows; within each time window, determining multiple respiratory airflow features, respiratory effort intensity features, and respiratory effort difference features based on the second respiratory airflow signal and the second respiratory motion signal, and combining these features as a feature vector corresponding to the time window; clustering the multiple feature vectors corresponding to the multiple time windows to obtain a classification result corresponding to each time window. This application solves the technical problem in related technologies of the difficulty in accurately detecting different types of sleep apnea.

The present application relates to a kind of based on thoracic sign respiratory compensation monitoring method and system, solve the technical problem that existing monitoring means is limited to respiratory state quantization means, parameter acquisition is susceptible to interference.The system includes: myoelectric signal acquisition component, for collecting respiratory muscle potential signal, form the ordered transmission of myoelectric data;Thoracic volume signal acquisition component, for collecting the physical signal mapping thoracic volume change, form the ordered transmission of thoracic data;Signal receiving processing device, for receiving myoelectric data and thoracic data form corresponding change trend data.Form the data synchronous processing framework of thoracic volume change and respiratory muscle potential change in respiratory movement.Provide a new specific technical solution for the perception quantization of thoracic state for the monitoring of respiratory compensation.

This invention discloses a treatment plan optimization method and related equipment based on deterministic coupling of respiratory motion, relating to the field of radiotherapy technology. The method includes: acquiring multi-temporal 4DCT sequences of the patient and corresponding respiratory motion curves; constructing a mapping relationship between respiratory phase and organ position; establishing a dynamic coupling mapping relationship between beam spot triggering time, respiratory phase, and anatomical position; constructing a 4D dose simulator based on the dynamic coupling mapping relationship to simulate the treatment plan and output a 4D cumulative dose distribution; comparing the 4D cumulative dose distribution with a preset clinical target, and if the error exceeds the tolerance range, activating an intelligent optimizer for optimization until the 4D cumulative dose distribution meets clinical requirements, and outputting the current treatment plan; achieving precise quantification and individualized adaptive compensation of the impact of respiratory motion, improving the realism of proton therapy dose deposition, the robustness of target coverage, and the optimization efficiency of the treatment plan.

This invention discloses an ultrasound-guided method and fixation device for reducing and fixing fractured ribs, relating to the field of rehabilitation equipment. This ultrasound-guided method and device employs minimally invasive techniques, requiring only a small incision in the fracture area. Through this incision, a specially designed flexible bandage is precisely inserted and wrapped around the fractured rib using blunt dissection to avoid muscle tissue. Once tightened, the bandage provides continuous and stable external tension to the precisely reduced fracture ends, effectively counteracting the traction tension generated by respiratory movements and ensuring that the fractured rib maintains ideal alignment throughout the healing process. This technique avoids the extensive muscle stripping required in traditional surgery, significantly reducing intraoperative bleeding and postoperative pain, facilitating early ambulation, and greatly reducing the risk of complications such as pulmonary infection, achieving the treatment goal of minimal trauma and rapid recovery.

This invention provides a breathing mask for intensive care units to prevent pressure ulcers, belonging to the field of medical device technology. It includes a mask body, a base assembly, and a strap assembly. The base assembly supports the mask body and distributes pressure. Two sets of expandable cavities are respectively provided on the inner and outer sides of the mask body opening. An inflation assembly is connected to the air inlet of each cavity, and the inflation assembly alternately inflates the two cavities. The strap assembly includes a first strap and a second strap fixedly installed on both sides of the mask body. A telescopic member is provided between the first and second straps, which can move relative to each other in response to respiratory movements. The base assembly includes an outer sleeve and an inner sleeve. In this design, by alternately pressing the push rod, the first and second air bladders are alternately compressed, causing the outer sleeve and inner sleeve to alternately expand, thereby reducing continuous pressure on the patient's face and preventing pressure ulcers.