13038 results about "Medical device" patented technology

A computer-implemented system for personalized health optimization constructs a confidence-weighted personal health knowledge graph (PHKG) from heterogeneous data, including wearable sensors, medical devices, lab results, medication logs, and conversational inputs. A multi-stage causal-inference stack identifies modifiable drivers of outcomes using layered methods (e.g., MI, GAM, Neural Granger, DAG-GNN), and simulates candidate interventions. A recommendation engine ranks lifestyle or pharmacologic actions using a benefit-to-friction score, selecting a personalized intervention aligned with user readiness and clinical safety constraints. Interventions may include a minimum effective dose (MED), optimal level, adaptive low-dose, or behavioral challenge. Optional modules include reinforcement learning for timing adaptation and privacy-preserving on-device inference. The system operates across domains including metabolic, cardiovascular, renal, sleep, stress, and medication response, enabling cross-condition synergy evaluation. The architecture is modular, supports runtime plug-in targets, and adapts in real time with or without continuous clinical oversight, depending on deployment.

A compound, as shown in Formula I, is a multi-heterocyclic compound. It has been verified that the compound provided by this invention integrates a novel compound targeting the calcitonin gene-related peptide (CGRP) based on ephedrine. Upon contact with the skin, due to photoactivated cell biological function regulation and the blocking effect of the multi-heterocyclic compound I structure on serotonin receptors, it achieves therapeutic effects on cutaneous vascular malformations and telangiectasia, improves the effectiveness of phototherapy in improving chronic cutaneous vascular diseases, and promotes skin wound healing.

The invention belongs to the technical field of medical instruments, and particularly relates to a spinal epidural ventral side double-wing-shaped stimulation electrode and motion function reconstruction system, the spinal epidural ventral side double-wing-shaped stimulation electrode and motion function reconstruction system comprises two wing panels, each wing panel comprises a flexible substrate, the flexible substrate is provided with two bifurcated preset-curvature double-wing structures; the electrode contact array is integrated on the flexible polar plate through a bonding pad; according to the double-wing-shaped flexible substrate, through a double-wing structure with a preset curvature, after being unfolded under the driving of a nickel-titanium alloy framework, the double-wing-shaped flexible substrate accurately covers a spinal cord ventral side and double-side anterior angle motor neuron pool, and the problem that a traditional single-piece / rod-shaped electrode can only cover a back side sensing area and cannot cover a back side sensing area is solved. The ventral motor neuron group cannot be directly activated; a stimulation target spot is transferred to a ventral functional core area from a dorsal non-target area for the first time, and the anatomical suitability bottleneck of motor function reconstruction is solved.

This disclosure generally relates to medical devices that include a sensor transmitter assembly that includes a sensor assembly including a sensor module where a first sensor including a first sensor head having at least one first sensor contact pad is combined with a second sensor including a second sensor head having at least one second sensor contact pad. The sensor transmitter assembly also includes a transmitter assembly positioned on a top of the sensor assembly to form a single unit, the transmitter assembly having at least one transmitter contact disposed on a base of the transmitter assembly, where the first sensor contact pad(s) and the second sensor form a connection path with the transmitter contact(s).

The invention discloses a multi-axis dynamic scoliosis direction correcting device, which belongs to the technical field of medical instruments and comprises an upper flitch plate, a lower flitch plate, a spine plate, a movable connecting piece, a tension sensor, a hydraulic adjusting mechanism, a positioning and supporting mechanism and a control system, an upper arc-shaped plate surrounding the armpit is arranged on the outer side of the upper flitch, a lower arc-shaped plate surrounding the lower portion of the spine is arranged on the outer side of the lower flitch, and fixing mechanisms are arranged between the upper flitch and the upper arc-shaped plate and between the lower flitch and the lower arc-shaped plate. The movable connecting piece composed of the first ball seat and the first ball bead between the spine plates can achieve accurate attachment and flexible adaptation according to the natural trend of the spine, it is ensured that the device can accurately lock the deformity segment of scoliosis, a foundation is laid for subsequent targeted correction, and meanwhile the spine plates can be used for accurately locking the deformity segment of scoliosis. The tension sensors on the two sides of the spine plate can continuously monitor the pressure of the malformation section, and real-time data support is provided for correction force regulation and control.

The present disclosure involves a medical device. The medical device includes an elongate cable assembly having a distal connector, a proximal connector, and a cable body coupling the proximal and distal connectors. The distal connector is configured for coupling with a diagnostic medical device. The proximal connector is configured for coupling with a medical measurement system. An electronic component is located inside the distal connector or the associated cable housing. The electronic component includes an analog-to-digital converter (ADC) and a microprocessor. The ADC is configured to receive medical data gathered by the diagnostic medical device and convert the medical data into digital signals. The microprocessor is coupled to an output of the ADC and configured to process the digital signals into a format that is readable by the medical measurement system.

The invention belongs to the field of intelligent rehabilitation medical instruments, and particularly relates to a brain-computer interface-based multi-modal child sensory integration training device, which comprises a brain-computer interface head ring, an intelligent touch floor and AR interactive glasses, the brain-computer interface head ring is connected with a biological signal acquisition module, the intelligent touch floor is connected with a motion trail analysis unit, the AR interactive glasses are connected with a universe scene engine, and the biological signal acquisition module, the motion trail analysis unit and the universe scene engine are connected with a digital twin generator. The digital twin generator is connected with a dynamic mode switching decision tree, and the dynamic mode switching decision tree is connected with a multi-mode feedback actuator; the brain-computer interface head ring is located on the head of the child and collects electroencephalogram, myoelectricity and electrocardiosignals through a biological signal collection module; and the biological signal acquisition module sends a signal to the digital twin generator through wireless transmission. According to the invention, the training efficiency can be improved, the evaluation dimension can be expanded, potential safety hazard early warning can be realized, and the compliance can be enhanced.

The invention belongs to the technical field of medical risk early warning, and discloses a medical risk dynamic early warning and intervention decision-making system based on a multi-mode Internet of Things and AI, which comprises a sensing layer, a network layer, a data processing layer, an AI analysis layer and an application layer, the sensing layer comprises a wearable device, an environment sensor, a medical device, a non-contact monitoring device and an implantation device; the network layer constructs a data transmission channel and is provided with an edge computing node; the data processing layer adopts a multi-modal data fusion engine, is responsible for data alignment, data cleaning and feature extraction, and constructs a knowledge graph; the AI analysis layer comprises a dynamic risk early warning model and an intervention decision engine; the application layer is provided with a three-level early warning board, an intelligent intervention terminal and a block chain evidence storage platform. According to the invention, the early warning window is advanced, and the recognition accuracy is improved; the system promotes a medical monitoring mode to be changed from post response to active defense, the medical accident rate is further reduced, and a technical foundation is provided for constructing a new generation of smart hospitals.

The invention relates to the technical field of synthetic biology, in particular to recombinant XVII type collagen as well as a preparation method and application thereof.The amino acid sequence of the recombinant XVII type collagen comprises a sequence shown in any one of SEQ ID NO.1-SEQ ID NO.3. The recombinant XVII type collagen can be highly expressed in an escherichia coli and pichia pastoris system, the expression system is simple, the cost is low, and the recombinant XVII type collagen is suitable for industrial production. The yield is high; the biological activity is good. The protein can be compounded with other proteins to form raw materials of tissue engineering products, cosmetics, health care products or medicines, so that the protein can be widely applied to the fields of medicines, medical instruments, biological materials, tissue engineering, cosmetics and the like.

A male cap can include a male tapered outer surface that can be configured to mate with a female luer to create a fluid tight fit. The male cap can also include a water-soluble antimicrobial composition disposed on the male extension. The male cap can include a fluid-soluble, slower-dissolving material covering the water-soluble antimicrobial composition or incorporated within the water-soluble antimicrobial composition. The slower-dissolving material can be configured to slow a dissolution of the water-soluble antimicrobial composition during installation of the male cap into the female luer.

The invention discloses a non-invasive hemodynamics monitoring method and system based on deep learning, and relates to the technical field of medical instruments, and the method comprises the steps: obtaining invasive blood flow data and non-invasive radial artery waveform data of a corresponding time point; time reference alignment is carried out on invasive blood flow data and non-invasive radial artery waveform data through time points, time drift errors between invasive and non-invasive equipment are eliminated, an initial non-invasive detection model is constructed, the method better fits the actual state of non-invasive detection, non-invasive feature vectors are used as input features after vascular elasticity compensation processing, and the non-invasive detection accuracy is improved. The initial non-invasive detection model is trained by taking blood flow parameters in the invasive data set as supervision annotation data, so that the consistency of model output and real invasive blood flow parameters is improved, 'waveform fragment-blood flow parameter 'space-time mapping is established, the running dynamic state of the non-invasive detection model is evaluated and analyzed, and the detection accuracy is improved. The performance change of the model in the training and running process can be monitored in real time, and convergence, over-fitting and under-fitting problems can be found in time.

The invention discloses an automatic injection pen with a double-cavity structure, and belongs to the technical field of medical instruments. Comprising a shell, a refill frame, a double-cavity clamping type bottle, a push rod, a base, an unlocking piece, a releasing piece, an injection spring and a button, the push rod is provided with a first hook hole, the base is provided with a first clamping hook matched with the first hook hole, the base is further provided with a second hook hole, and the unlocking piece is provided with a second clamping hook matched with the second hook hole; the unlocking piece is used for keeping or releasing matching of the first hook hole and the first clamping hook; and the release piece is used for keeping or releasing matching of the second hook hole and the second clamping hook, so that before the release piece releases the second hook hole and the second clamping hook, the button cannot be pressed down, and the unlocking piece cannot slide by pressing the button. The release piece and the unlocking piece ensure that double-cavity liquid medicine cannot be triggered before being mixed, operation is easy, stability is high, and a patient can conveniently and safely conduct injection.

The invention discloses a medical B-mode ultrasound probe batch disinfecting apparatus and disinfecting method. The medical B-mode ultrasound probe batch disinfecting apparatus comprises a bottom plate, and is characterized in that the upper side of the bottom plate is fixedly provided with a washing tank and a disinfecting tank, the outer edge of the upper side of the disinfecting tank is fixedlyconnected with a motor by virtue of a curved rod, an output shaft of the motor is fixedly connected with a fan, the middle portion of the upper side of the bottom plate is fixedly connected with a ball groove by virtue of a cylinder, the middle portion of the upper side of the ball groove is provided with a slideway, a round ball is hinged into the ball groove, one side of the ball groove is fixedly communicated with a barrel, one end of a round rod of an L-shaped rod is arranged in the barrel, the round-rod end portion of the L-shaped rod is fixedly connected with the round ball, the other end of the L-shaped rod is fixedly connected with a key groove, the key groove passes through an arched slideway, and the middle portion of the lower side of the arched slideway is fixedly connected with the bottom plate by virtue of a supporting column. The invention relates to the field of medical devices, in particular to the medical B-mode ultrasound probe batch disinfecting apparatus. By adopting the medical B-mode ultrasound probe batch disinfecting apparatus, the batch disinfection can be performed on a B-mode ultrasound probe.

Sheets of material used in medical devices and filters are disclosed. The sheets may include a fibrous mat including a plurality of microfibers. The microfibers may include a polymer matrix and a plurality of additive particles. The additive particles may include carbon material particles, therapeutic micro particles, and any combination thereof. Medical devices and filters that use the sheets are disclosed. Methods of producing the sheets are also disclosed.

The invention relates to the technical field of bioengineering, in particular to a recombinant VII type collagen for inhibiting scars as well as a preparation method and application of the recombinant VII type collagen. The amino acid sequence of the recombinant VII type collagen is as shown in SEQ ID NO. 1. The recombinant VII type collagen provided by the invention has a better cell adhesion function, so that the recombinant VII type collagen can be applied to the fields of preparation of tissue materials, wound dressings and the like. Meanwhile, the VII type collagen does not contain any tag or exogenous amino acid sequence, is a completely humanized sequence, and does not generate immune response. The VII type collagen has a good adhesion effect, the adhesion effect is better than that of other recombinant collagen, the adhesion effect is equivalent to that of a common cell adhesive in the market, scars can be reduced by inhibiting activation of a TGF-beta pathway, and the VII type collagen can be developed into skin care products and medical instruments for promoting traceless wound repair and has a wide application prospect.

This invention relates to an ultrasonic bone scalpel and an ultrasonic cutting device, belonging to the field of medical device technology. The ultrasonic bone scalpel is used to cut bone tissue from within the medullary cavity, and includes an ultrasonic scalpel body and a retaining assembly. The ultrasonic scalpel body includes a handle and a cutting head mounted on one end of the handle. The retaining assembly includes a pressure bladder mounted on the handle, with the pressure bladder and cutting head arranged radially opposite each other along the handle. The pressure bladder is capable of expanding or contracting. The ultrasonic bone scalpel provided by this invention utilizes the expansion of the pressure bladder to provide continuous cutting pressure based on the cutting action of the ultrasonic scalpel body, reducing the cutting wound on soft tissue, thereby protecting soft tissue while satisfying bone tissue cutting requirements. Furthermore, because this ultrasonic bone scalpel cuts from the inside out of the medullary cavity, it avoids external damage to soft tissue, thus reducing the cutting wound on soft tissue and further protecting it. Therefore, when the cutting wound on soft tissue is reduced, the risk of intraoperative infection is correspondingly reduced, and the healing time is shortened.

The invention discloses a bending-adjustable catheter, and relates to the technical field of interventional medical instruments, the bending-adjustable catheter comprises an inner tube, an outer tube, a bending-adjustable supporting tube and a handle, the inner tube comprises an inner tube bending section located at the far end, the inner tube bending section can be bidirectionally bent, and the inner tube bending section at the far end of the inner tube extends outwards from the outer tube; position anchoring of the outer pipe can be achieved through the anchoring structure; the far end of the bending adjusting supporting pipe is connected with the bending adjusting section of the inner pipe, the far end of the outer pipe is fixed to the bending adjusting supporting pipe, and the elasticity modulus of the bending adjusting supporting pipe is smaller than that of the inner pipe. The handle is provided with an inner pipe pushing piece. When the outer tube is anchored to the inner wall of a blood vessel, axial acting force is applied to the inner tube through the inner tube pushing piece, the inner tube control bending section is bent under the action of the axial acting force and supporting force applied by the bending adjusting supporting tube, large-angle bending adjusting can be achieved at the far end of the inner tube, overall rotation of the inner tube and the outer tube is matched, and the far end of the inner tube can rotate in a three-dimensional space. The bending of the adjustable-bending catheter in any direction is realized, and the adjustable-bending catheter can better pass through a roundabout blood vessel.

The utility model discloses a snake bone joint, a flexible joint assembly and a surgical operation arm, relates to the technical field of medical instruments, and aims to relieve the problem that two snake bones slide in an uncertain dislocation mode when the snake bone joint is bent. The snake bone joint comprises a first snake bone and a second snake bone, the first snake bone and the second snake bone can rotate based on respective pivots, the two pivots are parallel, and the distance between the two pivots is constant; the first snake bone comprises a restraint roller, the second snake bone comprises a restraint hole site, and the restraint roller is movably arranged in the restraint hole site; the restraining hole site comprises a first restraining face and a second restraining face which are oppositely arranged, and the restraining roller arranged in the restraining hole site is clamped between the first restraining face and the second restraining face. Therefore, the snake bone joint has the advantage that the bending precision and the load deformation resistance of the snake bone joint are improved.

Delivery systems are used for medical devices. For example, this document describes delivery systems for implantable medical devices such as, but not limited to, prosthetic heart valves that are deliverable in a minimally invasive manner using a system of catheters. The delivery systems may include a valve stop member that establishes the longitudinal position of the prosthetic heart valve on a balloon member. Such a valve stop member can be constructed as a braided wire body or cellular body to provide multiple advantages.

This invention belongs to the field of medical device technology and relates to a hemostatic rotary cutting electrode assembly and its electrode. It includes a hemostatic vessel with a distal hemostatic portion. An inner rotary cutting blade is inserted within the hemostatic vessel. The inner rotary cutting blade includes an inner blade tube and a spiral portion located distal to the inner blade tube. The spiral portion includes a spiral body and a spiral tip located distal to the spiral body. The spiral body has a spiral groove with a cutting edge. The spiral groove communicates with the inner blade tube. A suction tube providing negative pressure is connected to the proximal end of the inner blade tube. The spiral tip protrudes outside the hemostatic portion. This invention solves the technical problem of existing technologies being unable to directly break up tissue and smoothly remove tissue debris from the human body.

The invention provides an absorbable bioprosthetic valve design method based on artificial intelligence and biomechanics. The absorbable bioprosthetic valve design method comprises the following steps: S1, constructing a performance demand system of a valve; s2, constructing a three-dimensional reconstruction model of the original lesion structure of the human body and a parameterized structure model of the valve; s3, establishing a first deep learning model for simulating interventional mechanical behaviors of the valve; s4, constructing a second deep learning model for predicting the relationship between the stress and the material degradation behavior in the long-term use process of the valve; s5, embedding the first deep learning model and the second deep learning model into a reinforcement learning framework; and S6, carrying out simulation and experimental verification based on a design result in the step S5, and evaluating the adaptability and reliability of the design parameters under the function requirements defined in the step S1. According to the method, the biomechanical theory and the artificial intelligence algorithm are fused, the structural parameter interpretability of the absorbable bioprosthetic valve design and the automation of the whole process are realized, and a new path is provided for the intelligent optimization design of the implantable interventional medical device with a complex structure.

The invention relates to a self-guiding ultrasonic treatment head and an ultrasonic treatment hand tool, and belongs to the technical field of medical instruments.The self-guiding ultrasonic treatment head comprises a treatment head shell, a sound transmission film, a moving shaft, an energy conversion assembly, a first sealing sleeve, a second sealing sleeve and a deflection force generation structure, and the sound transmission film covers a sound transmission opening of the treatment head shell in a sealing mode; one end of the moving shaft is movably inserted into the treatment head shell, the transduction assembly comprises an installation support and a transducer, a first limiting face is formed in the treatment head shell, the deflection force generating structure enables the installation support to deflect, and a first guide protrusion of the installation support abuts against the first limiting face all the time. According to the self-guiding ultrasonic treatment head and the ultrasonic treatment hand tool provided by the invention, the mounting bracket is deflected towards the first limiting surface through the deflection force generating structure, and the first guiding bulge always abuts against the first limiting surface, so that the movement straightness of the transduction assembly is improved, the movement of the transduction assembly is not excessively hindered, and the service life of the transduction assembly is prolonged. And the transduction assembly is prevented from moving and blocking or being locked.

A system and method directed to detecting placement of a medical device within a patient body, the system including a medical device including a multi-core optical fiber having a plurality of core fibers. Each of the plurality of core fibers can include a plurality of sensors each configured to reflect a light signal having an altered characteristic due to strain experienced by the multi-core optical fiber. The system can further include logic configured to determine a 3D shape of the medical device in accordance with the strain of the optical fiber. The logic can be configured to define a reference plane for the 3D shape and render an image of the 3D shape on a display of the system in accordance with the reference plane.

The invention relates to the technical field of medical instruments, and discloses a breast cancer sentinel lymph node positioning system and method, and the system comprises a data collection subsystem, a space positioning subsystem and a central processing subsystem. The method comprises the following steps: acquiring an anatomical structure image, a radioactivity counting rate and fluorescence intensity after performing primary fluorescence, radioactivity and secondary pulse type fluorescence tracer injection in sequence; establishing a global coordinate system and generating an anatomical region of interest; constructing a weighted directed topological graph based on the initial fluorescence data, and obtaining a baseline flow velocity; extracting radionuclide dynamic characteristics based on the radioactive data; a functional flow rate attenuation coefficient is calculated based on the second pulsed fluorescence data. And a multi-factor scoring model is applied, topological information, dynamic characteristics and functional flow velocity attenuation coefficients are fused, and a comprehensive score is calculated to identify the sentinel lymph node. According to the method, the lymphatic flow topological structure, nuclide dynamics and functional flow velocity information are combined, and the positioning accuracy and reliability are improved.

The utility model discloses a breathing machine humidifying tank and a breathing machine system, and relates to the field of medical instruments. The breathing machine humidifying tank comprises a tank body, a guide sleeve, a telescopic water bag and an operating rod. The tank main body is provided with a highest water line; the telescopic water bag is located in the tank body and horizontally arranged, the top of the telescopic water bag is higher than the highest water line, the telescopic water bag comprises a telescopic sleeve and a hard end plate, one end of the telescopic sleeve is connected with the tank body, the hard end plate is connected with the other end of the telescopic sleeve, and a water suction and drainage hole is formed in the hard end plate and lower than the highest water line. The guide sleeve and the telescopic water bag are arranged in the same direction, and the guide sleeve is connected with the tank body and corresponds to the telescopic water bag in position. And the operating rod penetrates through the guide sleeve, is matched with the guide sleeve and is sealed with the guide sleeve, and the operating rod is connected with the hard end plate. The breathing machine humidifying tank is installed on the breathing machine main machine, and a temperature and humidity sensor and a push-pull structure are arranged in a matched mode to obtain the breathing machine system. According to the utility model, the temperature and humidity of the humidified air at the patient end can be optimal.

The invention relates to the field of medical materials and medical instruments, and discloses a dry bioprosthetic valve and a preparation method thereof.The preparation method comprises the following steps that S1, pericardium and a cross-linking agent solution are mixed for a cross-linking reaction; s2, carrying out first dehydration treatment on the crosslinked pericardium by adopting a first dehydration solution with gradually increased concentration gradient under an ultrasonic condition; and S3, carrying out second dehydration treatment on the pericardium subjected to the first dehydration treatment by adopting a second dehydration solvent, so as to obtain the dried bioprosthetic valve. According to the preparation method provided by the invention, ethanol, isopropanol and water in a specific proportion are adopted to prepare a dehydration solution with gradient concentration, and two-step dehydration drying is carried out in combination with the physical effect of an ultrasonic technology and glycerol, so that rapid rehydration of the bioprosthetic valve is realized, and the original shape and mechanical property of the bioprosthetic valve can be better recovered after rehydration; and the immediate hemodynamic stability of the valve is improved.

Systems and methods for managing physiological events generated by a medical device in a patient are discussed. An exemplary system includes a controller circuit to receive information about a plurality of physiological events detected by a medical device in a patient, generate for each of the physiological events a respective feature set using the received information, and cluster the physiological events into different event groups using values of temporal or morphological features of the generated feature sets. The event groups each include a respective set of physiological events. The controller circuit can identify from at least one event group a representative event representing the physiological events of that event group, and output to a user or a process the representative event and an indication that the representative event has been determined and represents the set of physiological events in the even group.

The invention relates to the field of medical instruments, in particular to a percutaneous microflow acupuncture system closed-loop regulation and control method and system based on multi-channel acupoint impedance, and the method comprises the steps: obtaining a first surface electromyogram signal in a human body action period, and constructing a relation between an action behavior and surface electromyogram; determining a multi-channel implementation path of the percutaneous microflow acupuncture system according to the relationship; impedance characteristics of acupuncture points along the multi-channel implementation path are obtained, and percutaneous microflow electrical stimulation operation is set according to the impedance characteristics; acquiring a second surface electromyogram signal during the implementation of the electrical stimulation operation, and adjusting the electrical stimulation operation according to the first surface electromyogram signal and the second surface electromyogram signal; and acquiring a response signal for adjusting the multi-channel implementation path association region during the implementation of the electrical stimulation operation so as to change the multi-channel electrical stimulation mode. According to the invention, path calibration of multiple acupoint associated stimulation areas is implemented through multiple channels, feedback closed-loop stimulation regulation is formed by combining acupoint impedance and electromyographic signals formed during stimulation, and the stimulation efficiency is improved.

An intracorporeal robot (1) for deployment in a body tract, comprising: - a permanent magnet constituting an effector magnet (2) configured to be guided by an extracorporeal actuating magnet (105), and - a medical device (3) coupled to the effector magnet, the medical device comprising a shape memory structure (4) configured for tetherless actuation by an extracorporeal shape memory actuator (105).

The present application relates to the technical field of medical devices, and discloses a flexible sputum scab remover for pneumology department, which comprises an outer rod, the end of the outer rod is provided with a sputum suction head, the sputum suction head and the inner part of the outer rod are provided with a flow guide pipe, the inner part of the outer motor stator fixedly connected with the outer rod is rotatably connected with an inner rotor sleeve ring, the inner part of the inner rotor sleeve ring is threadedly connected with a threaded sleeve rod, and the end of the threaded sleeve rod is movably connected with an extension rod; the rotating ring is driven to rotate by the annular motor, the flexible brush rod is driven to rotate by the rotating ring, the flexible brush rod is used for cleaning the respiratory tract by high-speed rotation, the flexible brush rod is used for scraping, the damage degree of the respiratory tract is low due to the elastic colloid material of the flexible brush rod, the contact efficiency with sputum scab is improved by high-speed rotation, the flexible brush rod is used for cleaning, the cleaning efficiency and the cleaning effect of the device are effectively ensured, the damage of the flexible brush rod to the respiratory tract is reduced, and the cleaning safety of the flexible brush rod is improved.