172 results about "Stethoscope" patented technology

The invention provides a building equipment lightweight intelligent auscultation system fused with model distillation. The building equipment lightweight intelligent auscultation system is characterized in that a voiceprint data acquisition module is used for acquiring voiceprint data and equipment state data generated in the operation process of building equipment; the voiceprint data processing and feature extraction module performs preprocessing and feature extraction on original voiceprint data; the lightweight model construction module constructs a lightweight model suitable for edge equipment as a lightweight student model; the model distillation module transfers knowledge of the teacher model to the lightweight student model through distillation; the lightweight model optimization module further optimizes the lightweight student model; and the edge side deployment module deploys the optimized model to edge equipment, and carries out real-time reasoning on whether the building equipment has a fault or not through the edge equipment. According to the method, high-precision teacher model knowledge is migrated into the lightweight student model through the distillation technology, so that the real-time performance is ensured, and meanwhile, the real-time performance, precision and calculation efficiency of the auscultation system of the building equipment are improved.

The present description relates to methods and systems for a medical dictation. In one example, a stethoscope includes a first microphone positioned to capture physiological sounds of a patient, a second microphone positioned to capture ambient sounds, one or more processors, and memory storing instructions executable by the one or more processors to: during a stethoscope mode, obtain a first signal from the first microphone and a second signal from the second microphone, process the first signal to capture a physiological sound signal, including performing noise cancellation on the first signal based on the second signal, and transmit the physiological sound signal to an external computing device and / or a speaker of the stethoscope; and during a dictation mode, obtain the second signal from the second microphone, process the second signal to capture a voice signal, and transmit the voice signal to the external computing device.

The invention discloses a digital stethoscope system based on a piezoelectric film, and relates to the technical field of medical electronics and biomedical engineering. An existing digital stethoscope based on a piezoelectric film has the challenges of signal noise and interference, limitation of a signal processing algorithm, nonlinear response and time migration, insufficient diagnosis accuracy and automation and the like. A piezoelectric film and microphone dual audio acquisition mode is fused, various physiological signals such as low-frequency vibration and high-quality heart and lung sound are captured, and background noise is removed through a self-adaptive filter and a frequency spectrum subtraction technology; an MFCC feature extraction and dynamic time warping algorithm is utilized to carry out fine feature analysis and time axis alignment on the preprocessed audio signal, and high-precision matching with a storage template is realized; different physiological states are accurately distinguished through intelligent feature processing, real-time and visual diagnosis feedback is achieved through wireless transmission and state indication, and the reliability and efficiency of medical detection are improved.

The invention provides a mitral valve regurgitation severity assessment method based on PCG signals, which comprises the following steps: firstly, synchronously acquiring signals from a heart sound area and an environmental background by adopting a dual-channel audio acquisition technology, eliminating environmental noise and operation interference (such as clothes friction and non-uniform pressing force of a stethoscope) through a self-adaptive noise elimination algorithm, and calculating the severity of the mitral valve regurgitation severity; and carrying out segmentation processing on continuous heart sound signals of the de-noised heart sound by adopting a dynamic time window segmentation strategy to generate short-time heart sound fragments, evaluating the quality of the short-time heart sound fragments in real time by using a model based on a lightweight convolutional neural network, and filtering low-quality fragments. Then, nonlinear features are directly extracted from the short-time heart sound fragments through a deep neural network model based on a clique block, after each effective fragment is subjected to four classifications, classification results of all the fragments are integrated through a majority voting mechanism, and final mitral valve regurgitation severity judgment is generated. The classification robustness is effectively improved through multi-fragment information fusion, and the random error of single-fragment analysis is reduced.

The invention discloses a remote recognition system based on spatial respiratory tract abnormal sound, and relates to the technical field of sound recognition. The multi-mode sensor array is used for collecting breathing sound in a non-contact mode and obtaining sound source space information of the breathing sound, the cross infection risk is eliminated, and the limitation that a traditional stethoscope can only collect sound signals is broken through. The spatial audio processing module performs preset audio processing on the breathing sound to obtain a breathing sound signal, and obtains sound source control characteristics based on the sound source spatial information; the feature extraction module extracts time-frequency joint features and nonlinear dynamic features from the breath sound signals, and performs feature fusion on the time-frequency joint features and the nonlinear dynamic features and sound source control features to obtain multi-dimensional feature vectors; and the abnormal sound recognition model performs abnormal sound type recognition and spatial positioning on the multi-dimensional feature vector. Therefore, the environmental sound interference can be effectively solved, the type and position of the breathing sound can be intelligently identified, detected and positioned, the identification accuracy of the breathing sound is effectively improved, and meanwhile, the dependence on medical staff is also reduced.

The invention relates to the technical field of medical equipment, in particular to a sputum treatment device and method, a storage medium and a program product, the device comprises a sputum positioning device, a sputum excretion device and a control assembly, and the sputum positioning device comprises a target sensor assembly and projection equipment; the sputum excretion device comprises a sputum excretion pipe and an energy converter. The control assembly is used for receiving the sound wave data collected by the target sensor assembly in the sputum positioning device, calculating the target sputum position of the lung of the patient, controlling the projection equipment to project to the corresponding body surface position of the patient according to the target sputum position, and controlling the sputum excretion device to reach the target sputum position according to the target sputum position. Therefore, the problems that in the prior art, due to the fact that the sputum position is repeatedly positioned through a stethoscope, the positioning precision is poor, the working efficiency is low, and due to inaccurate positioning in follow-up sputum excretion, a patient is strongly stimulated or injured are solved.

1. Name of the product of this design: toy (medical device). 2. Application of this design product: for use as a toy. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: reference diagram of the assembly state. 5. Other situations that require explanation: Component description: Component 1 is a temperature gun, component 2 is a thermometer, component 3 is a stethoscope, component 4 is a blood pressure monitor, component 5 is an oxygen inhalation device, and component 6 is an infusion device.

The invention provides an active noise reduction stethoscope. The active noise reduction stethoscope comprises a sound receiving device, a sound processing device and a control unit, the sound receiving device is provided with a main microphone and an auxiliary microphone, the main microphone is configured to receive and output a first sound signal, and the auxiliary microphone is configured to receive and output a second sound signal. The sound processing device is coupled to the sound receiving device to receive the first sound signal and the second sound signal, and converts the first sound signal and the second sound signal into a third sound signal and a fourth sound signal in a digital mode respectively. The control unit is coupled to the sound processing device and calculates a correlation between the third sound signal and the fourth sound signal for determining whether to execute an active noise reduction operation.

The utility model relates to the technical field of medical instruments, and discloses an adjustable stethoscope which comprises an elastic plate, the two ends of the elastic plate are fixedly connected with mounting cylinders, the two mounting cylinders are arranged in a V shape, one end of each mounting cylinder is fixedly connected with a fixing block, a cavity is formed in each fixing block, and the fixing blocks are fixedly connected with the mounting cylinders. The inner side wall of the cavity is in sliding connection with a pressing rod. According to the adjustable stethoscope, through the arrangement of the mounting cylinder, the pressing rod, the spring, the connecting block, the clamping block and the ear hooks, when the distance between earplugs on the two ear hooks is adjusted, a pressing plate is firstly pressed to drive the pressing rod to move, meanwhile, the spring is compressed to drive the clamping block to move through the connecting block, the pressure of the clamping block on the ear hooks is reduced, and the clamping block is far away from the ear hooks; then the ear hooks can be pulled, under the action of the mounting cylinders, the relative distance between the earplugs on the two ear hooks is changed, the stethoscope can better adapt to the head of each user, and therefore the auscultation comfort level and the sound conduction effect are improved.

Embodiments disclosed herein improve digital stethoscopes and their application and operation. A first method detects of a respiratory abnormality using a convolution. A second method counts coughs for a patient. A third method predicts a respiratory event based on a detected trend. A fourth method forecasts characteristics of a future respiratory event. In a fifth embodiment, a base station is provided for a digital stethoscope.

The utility model discloses a wireless stethoscope which comprises a stethoscope shell and a handheld shell, one end of the handheld shell is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with the outer wall of the stethoscope shell, and the stethoscope shell is fixedly installed at the end of the handheld shell through the connecting block. A trumpet-shaped opening is formed in one side of the auscultation shell, a mounting ring is fixedly arranged at the position, located on the inner wall of the trumpet-shaped opening, of the auscultation shell, and a sound filtering diaphragm is arranged in the middle of the interior of the mounting ring. According to the utility model, the plurality of microphones are uniformly arranged on the mounting ring in a surrounding manner, so that a microphone matrix is formed on the mounting ring, the sound direction detection sensor on the PLC judges the sound emitting direction according to the sound receiving sequence of the different microphones, and the sound direction is displayed on the display; therefore, a doctor can accurately find the sounding position according to the direction displayed on the display, and the doctor can judge the illness state of a patient.

The present invention comprises a cuff (20), a cuff pressure adjustment unit (32, 33), and a pressure sensing unit (31) that senses cuff pressure. During a pressure release process, the time at which a waveform feature point of a pulse beat was generated for each pulse of a pulse wave indicated by an artery passing through a measurement target site is recorded. During the pressure release process, a memory (51) is caused to sequentially store, as a data pair, the time at which the waveform feature point of the pulse beat was generated and the cuff pressure at that time. The cuff pressure is displayed on an indicator (50).In the pressure release process, an observer listening for a Korotkoff sound with a stethoscope while observing the cuff pressure displayed on indicator (50) operates an operating unit (52B) and inputs a time signal indicating the time at which the observer judged that the generation of the Korotkoff sound had ceased. A data pair corresponding to one pulse beat preceding a data pair corresponding to the time is specified, and a cuff pressure contained within the specified data pair is recorded as a corrected diastolic blood pressure value.

The utility model provides an anti-drop storage box for stethoscopes, and relates to the technical field of storage boxes, the anti-drop storage box comprises a box body and a mounting assembly, a box cover is arranged on one side of the box body, the box body and the box cover are provided with buffer assemblies by means of the mounting assembly, and rubber blocks of the buffer assemblies are used for buffering and protecting the box body and the box cover. By using the mounting assembly, the buffer assembly can be quickly mounted and fixed on the surfaces of the box body and the box cover, and then the buffer assembly can be conveniently used subsequently. By using the buffering assembly, buffering can be performed when the box body or the box cover is in contact and collision with the ground, and the impact borne by the stethoscope in the box body is further reduced.

A rubber tube for a stethoscope and a structure for fitting the rubber tube with ear-hung pieces. The rubber tube (1) for a stethoscope comprises a rubber tube channel (10) penetrating through each end portion, recesses (12) are provided on a channel wall (11) of the rubber tube channel (10); and when the ear-hung pieces are opened towards two sides for use, the sound listening effect of the stethoscope will not be reduced due to an ear-hung piece spring plate (71) pressing the channel wall (11) of the rubber tube (1).

To improve accuracy in determining whether or not there is an abnormality in biological sounds obtained with a stethoscope.SOLUTION: A program of this embodiment causes a processor of a data processing terminal 1 to function as a biological sound data acquisition unit 165 that acquires biological sound data based on auscultatory sounds acquired with a stethoscope ST in contact with a subject, a position data acquisition unit 163 that acquires position data indicating an auscultatory position at which the stethoscope ST acquired the auscultatory sounds, and a communication processing unit 167 that transmits auscultatory data in which the auscultatory position indicated by the position data is associated with the biological sound data to an external device 2 in a state in which it is possible to determine whether the auscultatory sounds are normal or abnormal.SELECTED DRAWING: Figure 3

1. The name of the design product: stethoscope and its chest. 2. The use of the design product: for human detection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: design 1 is the overall appearance design, protecting the whole stethoscope. Design 2 is a partial appearance design, protecting the chest part of the stethoscope. Among them, the solid line part in design 2 is the part that needs protection, and the dotted line part is the part that does not need protection.

The portable diagnosis and treatment device comprises a shell, supporting legs are fixedly connected to the four corners of the lower end of the shell, a box cover is rotatably connected to the rear portion of the upper end of the shell, and a partition assembly is arranged on the inner surface of the shell; a disinfection assembly is arranged at the upper end of the partition assembly, and the partition assembly comprises a round frame slidably connected with the inner surface of the shell. According to the portable diagnosis and treatment device for the cardiovascular medicine department, by arranging the partition assembly, blood collection tubes and medical instruments commonly used for stethoscopes can be reasonably classified and stored, and particularly, the collection tube storage mechanism can fix the blood collection tubes of different specifications and take the blood collection tubes as needed; accuracy and high efficiency during taking are ensured, and the collecting tube can be taken and placed more conveniently through the ejection mechanism, so that time waste in work is reduced, and clinical diagnosis and treatment efficiency is improved.

1. Name of the design product: Stethoscope. 2. Use of the design product: For medical stethoscopes. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view 1.

The utility model discloses an efficient abnormal sound monitoring device for a belt conveyor, which comprises an auscultation optical fiber, and connecting pieces are inserted into two sides of the surface of the auscultation optical fiber. According to the efficient abnormal sound monitoring device for the belt conveyor, through the arrangement of the positioning mechanism, the connecting piece and the auscultation probes, when the device is used, auscultation optical fibers are installed in the connecting piece, then the connecting piece is installed on the surface of an external conveyor, and the auscultation probes installed on the surfaces of the auscultation optical fibers are matched, so that comprehensive coverage can be achieved; the stethoscope is expanded, the traditional manual operation is replaced, the stethoscope probe is used for transmitting data to the industrial optical fiber host and the platform server for data processing, accurate positioning of a fault position can be realized, and finally, when stethoscope optical fibers are disassembled, only a positioning cover on the surface of a connecting piece needs to be unscrewed, so that the stethoscope can be disassembled. The auscultation optical fiber can be taken down from the surface of the conveyor, regular maintenance and replacement by workers are facilitated, and the practicability of the equipment is improved.

Provided is a hybrid ring-type smart stethoscope and a method for producing the same, and the hybrid ring-type smart stethoscope includes: a connection part which has a hollow hole into which a user's finger is inserted; an upper structure which is provided on the top of the connection part; and a lower structure which is provided on the bottom of the connection part, and has a measurement module collecting body-related information, which includes the user's heartbeat or respiratory information, by coming into contact with the user. The method of producing a hybrid ring-shaped smart stethoscope includes the steps of: preparing a connection part for wearing on a user's finger; installing an upper structure on the top of the connection part in a foldable manner; and installing a lower structure on the bottom of the connection part in a foldable manner. Therefore, the hybrid ring-type smart stethoscope can effectively auscultate a user's pulse and cardiopulmonary sounds, and is conveniently portable on an ordinary day.

1. Name of the product in this design: Veterinary stethoscope. 2. Purpose of this design: To determine whether an animal's heart has murmurs, abnormal heart rhythms, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses an internal arteriovenous fistula portable intelligent auscultation instrument for hemodialysis, and relates to the technical field of medical equipment. An alarm, three auscultation result indicating lamps with different colors, an equipment switch and an electric quantity indicating lamp are arranged on the auscultation instrument main machine, an equipment power supply, a control module, a wireless data transmission module and an AI noise recognition chip are arranged in the auscultation instrument main machine, and an auscultation head and a conduction tube are arranged on the outer side of the auscultation instrument main machine. And an auxiliary fixing mechanism is arranged on the stethoscope head. A noise reduction acoustic filter screen is arranged in the auscultation head to accurately filter interference, a signal amplification module at the tail end of a conduction tube amplifies weak blood flow sound, an AI noise recognition chip with a clinical noise spectrum pre-recorded is matched, the internal fistula noise state can be automatically recognized without depending on professional auscultation experience, visual feedback is achieved through a three-color auscultation result indicator lamp, linkage early warning is matched with an alarm, and the internal fistula noise state can be automatically recognized. Common medical care can quickly complete clinical screening, and a patient can also perform self-examination at home, so that the risks of missed judgment and misjudgment are thoroughly avoided.

1. The name of this design product: stethoscope. 2. Purpose of this design product: for medical stethoscope. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view.

A multimode stethoscope may provide an auscultatory signal from a patient to a local playback device and to an extended reality (XR) device. The multimode stethoscope may include a signal converter that converts the auscultatory signal to an electric signal carrying the auscultatory signal; an acoustic channel passing the auscultatory signal to an auscultation output port; a chest piece passing the auscultatory signal from the patient to the acoustic channel and to the signal converter; and a first wireless interface wirelessly transmitting the electric signal to the XR device. The auscultation output port may removably attach a stethoscope tube to the acoustic channel. The XR device may display an auscultation position on the patient's body wherein the multimode stethoscope may obtain the auscultatory signal when the chest piece is at the auscultation position. The XR device may store auscultation position data indicating the auscultation position in the patient's profile.

1. The name of the design product: stethoscope (pediatric examination). 2. The use of the design product: the stethoscope for pediatric examination. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A retractable stethoscope comprising a case, at least one piece of acoustic tubing, at least one ear piece, and a chest piece. The chest piece is coupled to one end of the acoustic tubing, and at least one ear piece is coupled to another end of the acoustic tubing. The length of the acoustic tubing may extend from and retract into the case from the ear piece end, the chest piece end of the acoustic tubing, or both ends either independently or simultaneously. The retractable stethoscope may further comprise a belt clip.

Portable device of a set of lightweight, flexible wired digital stethoscope and ECG blood pressure monitor with water-repellent coating for collecting and delivering measurements via USB connection for telemetry (FIG.5).

[Problem] To provide a medical device which can acquire measurement results with high reproducibility even when a stethoscope vibration receiver is placed against the part being inspected with an inconstant strength or position. [Solution] This medical device (100) is provided with a vibration receiver (20) which can record heart sounds in a frequency region that includes frequencies less than 20 Hz, and a frequency analyzer (11) which identifies the frequency in said frequency band at which the power is greatest. By adopting a vibration receiver (20) which can record heart sounds in a frequency band that includes frequencies less than 20 Hz and by identifying the frequency in said frequency band that has the greatest power, measurement results are less prone to being affected by the operation environment of the stethoscope vibration receiver.

The invention discloses a heart sound signal acquisition and automatic classification method based on deep learning, and aims to solve the problems that wireless transmission time delay of heart sound signals is high, weak pathological features are difficult to extract and classification accuracy is low. The method comprises the following steps: acquiring signals of four auscultation areas by using a high-fidelity wireless digital stethoscope; high-speed and low-delay transmission of medical-level signals is realized by utilizing a star flash transmission module and combining predictive coding and Huffman coding compression mechanisms; in the preprocessing stage, self-adaptive wavelet denoising based on signal energy entropy is adopted, a multi-resolution fusion feature extraction strategy is provided, the problem of time-frequency resolution tradeoff is solved through narrow window and wide window dual-channel parallel processing, and transient positioning features and pathological frequency domain textures are captured at the same time; the classification model adopts a multi-scale parallel convolution structure and is matched with a recurrent neural network and an attention mechanism, so that the problem that transient and continuous heart sound features are difficult to consider at the same time in a single scale is solved. According to the method, the accuracy and robustness of heart sound classification are remarkably improved.

1. The name of this design product: digital stethoscope. 2. Purpose of this product design: This product design is used for auscultating human heart and lung sounds. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.