100 results about "Swallowing Disorders" patented technology

The invention discloses an intelligent dysphagia classification system and method based on multiple modes of ultrasonic images and electromyographic signals, and the method comprises the steps: obtaining an original ultrasonic image sequence and an original electromyographic signal sequence, and carrying out the time sequence alignment and adaptive noise suppression processing; performing multi-dimensional signal quality scoring and adaptive enhancement processing on the de-noised data; extracting time domain, frequency domain and time-frequency domain features from the enhanced data, and combining the time domain, frequency domain and time-frequency domain features; feature weights are calculated based on feature correlation and quality scores, and multi-layer fusion is carried out; carrying out feature classification by using a hierarchical classifier and evaluating reliability; and comprehensively evaluating the classification performance and optimizing system parameters. Through multi-modal data fusion and a self-adaptive processing mechanism, the accuracy and reliability of dysphagia diagnosis are improved, and the method has good clinical application value.

The invention provides a swallowing disorder patient detection method and system based on tensor decomposition, and the method comprises the steps: obtaining the voice data of a swallowing disorder patient and a normal person, carrying out the preprocessing of the voice data, cutting irrelevant information in the voice data, and carrying out the amplitude normalization operation; obtaining a speech spectrogram of the speech data, and constructing vowel mixed tensors in different forms; different forms of vowel mixed tensors are sent to a Tucker decomposition model added with orthogonal constraints, and a proper rank is set to obtain a corresponding nuclear tensor; flattening the kernel tensor into a vector, taking the vector as feature input, and constructing a training feature set to train a dysphagia detection model after feature selection; and detecting the to-be-detected voice data based on the detection model to obtain classification results of the dysphagia patients and the normal people. The method is realized based on voice, is simple to operate and relatively low in cost, has no technical threshold in use, can safely and effectively detect the dysphagia patient, and is convenient for follow-up.

The invention discloses a portable swallowing function screening system based on multiple modes. The portable swallowing function screening system comprises a signal acquisition device, a data processing device and an interactive display device which are connected in sequence, the signal acquisition device is used for acquiring a laryngeal pressure signal, a laryngeal acoustic vibration signal and a swallowing acoustic wave signal of a patient; the data processing device is used for performing feature extraction and feature fusion according to the throat pressure signal, the throat sound vibration signal and the swallowing sound wave signal to obtain a multi-modal fusion feature, and calculating a swallowing disorder risk probability through a preset deep learning model according to the multi-modal fusion feature; the interactive display device is used for judging the swallowing function according to the swallowing disorder risk probability and displaying the screening result of the swallowing function according to the judgment result.

The utility model discloses a lip muscle strength training device, including movable plate, locating plate, pressure monitoring mechanism, host and feedback panel, movable plate and locating plate are respectively arranged on the same side of host and can be close to each other when being pressed, pressure monitoring mechanism is installed between movable plate and locating plate, and feedback panel is installed on the host. The feedback panel is arranged on the outer wall of the main machine and provided with a voice prompt module and / or a visual prompt module capable of prompting lip muscle strength training, and the main machine is electrically connected with the pressure monitoring mechanism and the feedback panel. The lip strength training device has the advantages that the lip strength training device is suitable for lip strength training of dysarthria or dysphagia, pronunciation clarity can be improved, salivation can be avoided, and swallowing efficiency can be improved.

The application discloses a kind of swallowing disorder rehabilitation auxiliary scheme generation method and system, belong to medical rehabilitation intelligent evaluation technical field, to solve the problem of swallowing training path optimization difference;The present application collects myoelectricity, tongue pressure, laryngeal image and acoustic signal in the process of swallowing by multi-channel sensing device, constructs unified multi-modal swallowing behavior feature vector, realizes obstacle stage recognition and function grade discrimination in combination with pre-training model and historical data, and outputs structured evaluation result;Based on the training action of high matching degree of knowledge graph matching, the personalized training path is generated by fusing muscle group matching degree, edge weight and function grade factor, and the intensity, frequency and rhythm parameters are set;Real-time monitoring action and myoelectricity deviation in training process, output prompt signal and record behavior completion degree;According to feedback, dynamically update rehabilitation progress graph, if deviation is out of limit, then automatically reconstruct path and synchronize doctor intervention, thereby improve rehabilitation efficiency and safety.

The invention discloses a cerebral infarction swallowing dysfunction risk prediction method based on machine learning, and belongs to the technical field of risk prediction, and the method comprises the following steps: S1, retrieving and collecting a plurality of data sets related to cerebral infarction from an MIMIC IV database; s2, original data in the data set are preprocessed, clinical information is strictly verified, and data which does not conform to research standards are removed; s3, predicting the processed data through a plurality of models, and finding out the model with the best performance; and S4, continuously training the optimal model, constructing a swallowing function risk prediction model of the optimal model, deploying the optimal model to a webpage based on a Streamline framework, predicting the swallowing disorder risk of the patient, and generating a personalized SHAP force field graph. According to the method, a plurality of machine learning models are constructed, the model with the optimal performance is selected, and the cerebral infarction dysphagia risk is accurately predicted in combination with clinical data.

The invention provides a dysphagia face training device which comprises a mounting seat, a connecting frame is arranged on the mounting seat, a tongue depressor and two groups of lower tooth supports are arranged at one end of the connecting frame, a supporting seat is hinged to the connecting frame, an elastic piece is arranged between the supporting seat and the mounting seat, two groups of upper tooth supports are arranged at the other end of the connecting frame, and a liquid storage tank is further arranged on the supporting seat. A supply assembly is arranged between the connecting frame and the supporting seat, liquid in the liquid storage tank is pumped into the mouth of a patient through the supply assembly when the connecting frame rotates, a mounting frame is arranged on the supporting seat, a shell is arranged on the mounting frame in a sliding mode, a massage disc is arranged in the shell, and the massage disc is connected with the connecting frame through a driving mechanism. Movement of the connecting frame is converted into reciprocating rotation of the massage disc through the driving mechanism. The training device is used for training, the training functions are rich, the training can be synchronously carried out in multiple directions, and therefore the swallowing function recovery capacity of a patient is effectively improved.

The invention relates to a dysphagia induction early warning correction method and device, equipment and a medium. The method comprises the following steps: acquiring basic physiological data and initial swallowing parameters of a patient to generate an initial threshold matrix; acquiring swallowing data in real time and performing validity screening; comparing the valid data with the threshold matrix to identify abnormal data, and calculating a first deviation value for early warning; generating an electrical stimulation intervention instruction according to the deviation value to execute a correction action; the threshold range is dynamically adjusted based on the intervention feedback data. By adopting the method, early-stage accurate early warning and personalized electrical stimulation intervention of dysphagia can be realized, and the early warning accuracy and the intervention effect are remarkably improved through dynamic threshold optimization.

The utility model relates to the technical field of medical instruments, and provides a multifunctional training device for dysphagia, which comprises a grip, a first threaded column is fixed at one end of the grip, a first threaded cover is in threaded connection with the outer side of the first threaded column, a fixing plate is fixed in the middle of one side wall of the first threaded column, and a supporting plate is fixed at one end of the fixing plate. Fixing cylinders are symmetrically fixed to the side wall of the supporting plate, springs are symmetrically fixed to the side wall of the supporting plate, the springs are movably connected to the inner sides of the fixing cylinders in a sleeving mode, supporting columns are fixed to one ends of the springs, an occlusion plate is fixed to one ends of the supporting columns, and a hollow protection plate is movably connected to the outer side of one end of the occlusion plate in a sleeving mode. The utility model discloses can help patient to carry out bite training, exercise masseter muscle, assist patient to carry out swallowing training, alleviate swallowing disorder symptom, the portable is convenient to go out, can carry out closed protection to the internal structure when carrying, avoids the pollution of external pollutant, guarantees patient's safety and hygiene when using.

The invention relates to the technical field of rehabilitation instruments, in particular to a dysphagia rehabilitation instrument for rehabilitation medicine, which comprises a frame body, a bearing assembly is arranged on the frame body, an auxiliary assembly is arranged above the bearing assembly, and a driving assembly and an inflating assembly are arranged on the frame body. The auxiliary assembly comprises a movable plate and a fixed plate, and the fixed plate is fixedly connected to the side wall of the frame body. The movable plate is located below the fixed plate and is in vertical sliding fit with the fixed plate. A first rotating rod is in sliding fit with one side of the movable plate, and a second rotating rod is fixedly connected to the end, away from the movable plate, of the first rotating rod. Openings are formed in the two sides of the movable plate, and training assemblies are arranged in the openings. The fixed plate is fixed on the frame body, the movable plate moves up and down, and when a patient puts the fixed plate and the movable plate into the mouth, the movable plate moves up and down to drive the mouth of the patient to be opened and closed, so that the mouth muscle of the patient is subjected to rehabilitation training, and the dysphagia of the patient can be relieved.

The storage device comprises a heat preservation barrel and a heat preservation cover, a heat preservation cavity is formed in the heat preservation barrel, a freezing rotary table is rotatably installed in the heat preservation cavity, and a plurality of insertion grooves for the ice cotton swabs to be inserted are formed in the freezing rotary table in the circumferential direction at equal intervals; a driving mechanism for driving the freezing rotary table to rotate is arranged in the heat preservation barrel, the control end of the driving mechanism is connected with a control switch through a controller, an inserting rod is embedded in the heat preservation barrel below one inserting groove, and inserting holes communicated with the inserting grooves are formed in the bottom of the freezing rotary table in cooperation with the inserting rod. A cotton swab outlet matched with the ice cotton swab is formed in the position, corresponding to the inserting rod, of the heat preservation cover; a telescopic mechanism matched with the inserting rod is embedded in the bottom of the heat preservation barrel, an extension triggering assembly matched with the telescopic mechanism is arranged on the driving mechanism, and a retraction triggering assembly matched with the telescopic mechanism is arranged on the driving mechanism or the heat preservation barrel. The heat preservation effect can reach 8-10 hours, and it can be guaranteed that ice cotton swabs in the heat preservation barrel are in a relatively sterile environment.

The present application belongs to the field of synthetic biology and functional food technology, and provides a swallowing safety-oriented xanthan gum directional biosynthesis method. In view of the problem that existing xanthan gum is difficult to reduce the risk of swallowing residue and aspiration by relying on viscosity regulation alone, a multi-dimensional evaluation system combining interfacial tribology and extensional rheology is established to determine the side chain modification parameters suitable for swallowing disorder food. By chromosome scarless reconstruction of xanthan gum synthesis gene cluster, the gumF 、 gumG gene is knocked out and the gumL promoter is replaced, an engineering strain without antibiotic resistance gene residue and with genetic stability is constructed, and directional synthesis of xanthan gum with specific side chain structure is realized. The obtained structure customized xanthan gum has a lower mucosal interfacial friction coefficient and a more optimal extensional rheological property, and can synergistically realize interfacial lubrication and bolus cohesion, significantly reducing the wall residue in the pharynx, and keeping the consistency stable in complex food matrix. The present application can provide a safe, stable and industrialized functional xanthan gum raw material for swallowing disorder food.

1. The name of this design product: Tongue pressure measurement handle. 2. Purpose of the product of this design: A tongue decompression handle used for the treatment and assessment of swallowing disorders, specifically a tongue decompression handle for the measurement, training, and treatment of tongue muscles. 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: Design 1 Stereoscopic Drawing 1. 5. Designate Design 1 as the base design. 6. Other situations requiring explanation Other explanations: The parts where the natural break lines in each view of Design 1-Design 3 are broken represent the omitted length.

The invention relates to the technical field of drinking training devices, in particular to a swallowing disorder bucking-preventing drinking cup which comprises a cup body and a cup cover, the cup cover is connected with the cup body, a mounting part used for mounting a suction tube is fixed to the position, close to the cup cover, in the cup body, and the suction tube penetrates through the mounting part; the top end of the straw is a water drinking end, and a spoon nest is arranged on the water drinking end; the bottom end of the straw is a water suction end, and the water suction end can suck water in the cup body into the spoon nest. The anti-bucking drinking cup for dysphagia can prevent a patient from bucking caused by excessive drinking water at one time by using a suction tube.

The invention relates to the technical field of rehabilitation instruments, in particular to a dysphagia rehabilitation device which comprises a supporting mechanism for supporting the whole dysphagia rehabilitation device, a fixing ring is installed on the supporting mechanism, a swing rod is rotatably installed on the fixing ring, a swing mechanism is installed on the fixing ring, and the swing mechanism is used for driving the swing rod to swing left and right around a rotating shaft; one end of the oscillating rod is connected and internally communicated with the negative pressure pipe; a suction nozzle is mounted at the end part, far away from the oscillating rod, of the negative pressure pipe; the negative pressure pipe is fixedly sleeved with a liquid storage tank; a partition plate dividing the interior of the liquid storage tank into two spaces is installed in the liquid storage tank, a plurality of temperature adjusting mechanisms are embedded in the partition plate, and the temperature adjusting mechanisms release heat and cold generated by the temperature adjusting mechanisms into the two spaces in the liquid storage tank respectively. According to the device, pressurized cold and hot liquid is directly utilized to change the shape of the suction nozzle at the front end, so that the device not only can fix the tongue tip through negative pressure to perform tongue stretching training, but also can perform cold and hot stimulation on a target area of the oral cavity of a patient.

The utility model discloses a nerve and muscle stimulator for treating dysphagia, and relates to the field of medical instruments. Comprising a host, a base and an interrupt switch. The host is connected with an electrode plate and the interrupt switch, the electrode plate acts on a human body, the interrupt switch is used for determining whether to interrupt treatment, and the base is used for supporting the host; the host comprises a touch display screen, a display panel and a control panel, and the touch display screen and the control panel are both connected with the display panel. The base is used for placing the host, so that the host can be vertically placed on a desktop, and both hands of a doctor are liberated. The treatment electrode plate is used for fitting the pharyngeal skin of the patient and outputting electrical stimulation to achieve a treatment effect; the reference electrode wire and the reference electrode slice are used for biological feedback, and the biological feedback function is the function of monitoring or analyzing the treatment effect according to the muscle contraction condition. The patient control switch is an emergency stop switch capable of being controlled by the patient, and treatment can be paused when the patient feels uncomfortable.

The present invention discloses a fully automatic food processor for nursing food required by patients with dysphagia, and relates to the technical field of medical nursing. The machine comprises a machine base and a control panel, wherein a power connection base is fixedly arranged on the top surface of the machine base, a cooking cup is movably plugged on the top surface of the power connection base, a cup cover is movably connected on the top surface of the cooking cup, a viscosity detection mechanism is fixedly arranged inside the cup cover, and the control panel comprises a database management unit, a parameter acquisition unit, a food material identification unit, an adjusting agent calculation unit, a parameter output unit and a viscosity measurement unit; the present invention obtains the feeding amount of the adjusting agent through calculation by the control panel according to the weight of the staple food material, and the staple food material and the adjusting agent are sequentially poured into the cooking cup to complete automatic whipping, until the actual viscosity of the food reaches the rated viscosity corresponding to the preset food grade classification, thereby realizing scientific distribution, ensuring that the solid content and the water content in the whipped food have a reasonable proportion, and facilitating the patients and their families to realize scientific meal distribution by themselves.

The invention relates to food technology. Specifically, it discloses a 3D-printed high-protein and prebiotic dietary-fiber-rich finger food adapted to provide balanced nutrition for the elderly and people with swallowing disorders. By including lean meat (e.g., pork), prebiotic dietary-fibers-rich berry pomace, broth, collagen, structured oil as a bigel (biphasic system), salt and seasonings as main raw materials and through pureeing, blending, shaping by extrusion, baking, the 3D-printed product is rich in protein and prebiotic dietary fiber. Further, it is suitable for people with dysphagia, complying International Dysphagia Diet Standardization Initiative (IDDSI) level 6, which classifies the product as soft and bite-sized. The invention discloses a method s of producing such 3D-printed food products, from selecting and processing the initial ingredients to ready-to-eat products. The steps include preparing a nutritious formulation with properties suitable for 3D printing, 3D-printing, and heat-treating with specifically defined parameters.

The utility model discloses a stroke dysphagia aided training instrument, including sheet mask and neckband, the mask is provided with eye open pore, nose open pore, ear open pore and lower jaw open pore, the bottom of the mask is connected with the top of the neckband, the two sides of the mask are provided with mask connecting piece, the mask connecting piece is connected with the mask connecting piece, and the mask connecting piece is connected with the neck band. The mask is fixed through the mask connecting piece after surrounding the head by a circle from the two sides of the face towards the back of the brain, neck band connecting pieces are arranged on the two sides of the neck band, the neck band is fixed through the neck band connecting piece after surrounding the neck by a circle from the lower portion of the lower jaw backwards, and a plurality of electrode plates are installed on the mask and the neck band in an embedded mode respectively. And a massage device is detachably mounted above each ear opening of the mask. Electrical stimulation and massage are combined, comprehensive treatment is achieved for dysphagia of a patient, the rehabilitation training effect is good, comfort is good, operation is easy and convenient, cost is low, and the rehabilitation training device is suitable for household rehabilitation training.

The utility model discloses a clinical dysphagia detection and exercise functional device, and particularly relates to the production of medical instruments, the clinical dysphagia detection and exercise functional device comprises a spoon handle and a spoon bowl, one end of the spoon handle is provided with a probing part, and one side, close to the end part of the spoon handle, of the probing part is provided with a threaded section; the probing part stretches into the spoon bowl from a threaded connecting part arranged on the spoon bowl and is in threaded assembly with the threaded connecting part through the threaded section; the spoon handle is of a hollow structure, a memory elastic transparent hose is arranged in the spoon handle, and the memory elastic transparent hose is communicated with the interior of the spoon bowl through a through hole formed in the probing part; and the other end of the spoon handle is provided with a manual valve of which the port is communicated with one end of the memory elastic transparent hose. The dysphagia detection and exercise device realizes dysphagia detection and exercise.

An apparatus for diagnosing a disease and a method for diagnosing a disease, in which: a plurality of voice signals are received to generate a first image signal and a second image signal which are image signals for each voice signal; a plurality of disease probability information for a target disease causing a voice change are extracted by using an artificial intelligence model determined according to the type of each voice signal and a generation method used to generate each image signal for the first image signal and the second image signal for each voice signal; and it is determined whether the target disease is negative or positive on the basis of the plurality of disease probability information.

The embodiment of the utility model discloses a test box for dysphagia test and evaluation and an integrated test pack. The test box for dysphagia test and evaluation comprises a first box body, a second box body, a third box body, a fourth box body and a fifth box body, and the second box body, the third box body, the fourth box body and the fifth box body are arranged in the first box body; the second box body and the third box body are adjacently arranged and are used for placing a self-standing bag, and the self-standing bag is filled with test gel with preset consistency; the fourth box body and the fifth box body are adjacently arranged and are used for placing a container, and the container is used for containing test gel extruded from the standing pouch. According to the test box, materials needed in the test process are integrated, the prepared test gel with the preset consistency is contained, the situation that a blender needs to temporarily blend the test gel in the clinical use process is avoided, and the accuracy and the clinical operation efficiency are improved.

The invention discloses a method for preparing easy-to-eat food by regulating the electrostatic interaction of protein and a product, and the method comprises the following steps: adding 5-10% of charge modified egg white protein (phosphorylation and succinylation) into a black rice paste matrix, and carrying out thermal induction to form electrostatic cross-linked gel. According to the present invention, the limitation that the traditional thermally induced gel depends on disulfide bonds is broken through, the ionic bonds and the disulfide bonds cooperate to form the dynamic adjustable network, the IDDSI 5-level texture precise control is achieved, and the black rice anthocyanin processing retention rate is increased by 36.4%; the prepared product is suitable for patients with dysphagia such as stroke and senile dementia, and has high safety and nutritional functions.

The embodiment of the invention provides a rehabilitation training device for patients with dysphagia in the neurology department, and relates to the technical field of swallowing rehabilitation training. The rehabilitation training device for the neurology department dysphagia patient comprises a supporting bottom plate, an L-shaped support is fixedly installed on the upper surface of the supporting bottom plate, an installation frame is fixedly installed on the front side of the L-shaped support, a training device is installed in the installation frame and comprises a training shell, a touch sensor and an installation supporting block, and the front side face of the training shell is open; mounting supporting blocks are mounted on the lower side face of the training shell in a bilateral symmetry mode, the mounting supporting blocks are fixedly mounted on the mounting frame, and touch sensors are mounted in the middles of the upper portion, the lower portion, the left portion and the right portion of the inner wall of the training shell. The touch sensor is used for detecting and counting the extending position and the number of times of the tongue, and multi-direction movement training of the tongue can be conducted on a patient suffering from dysphagia, so that the swallowing function of the patient is improved.

The invention provides an anti-aspiration feeding assist device for pharyngeal tumor, which relates to the technical field of pharyngeal tumor postoperative rehabilitation medical equipment and comprises a main shell, a feeding air bag, a flexible feeding pipe, a swallowing trigger type peristaltic pump and a controller host. The swallowing action of a patient is recognized through a vibration sensor, and a peristaltic pump and an air bag volume dynamic pressing plate are triggered to cooperatively push food; the flow sensor feeds back the flow speed in real time to realize closed-loop regulation; the anti-reflux one-way valve tube and the one-way valve form a dual anti-reflux structure, so that aspiration is effectively prevented. The feeding adjusting mechanism supports manual setting of pushing parameters, and the data storage device records feeding data and achieves remote management through the data transmission plug-in port. The intelligent swallowing auxiliary feeding device achieves swallowing synchronization, intelligent regulation and control and safe and mistaken-aspiration-preventing personalized auxiliary feeding, and is suitable for nutrition support and functional rehabilitation of swallowing disorder patients such as throat tumor and the like.

The present application relates to the field of medical auxiliary equipment, and particularly relates to a swallowing disorder rehabilitation training system based on multi-dimensional evaluation and dynamic feedback, comprising: an evaluation module for generating an evaluation report of a patient; a decision module for generating a stimulation training scheme and updating; a stimulation module for stimulating the muscles related to swallowing of the patient; a monitoring module for collecting dynamic data of the patient in real time; and a feedback module for receiving the dynamic data of the training and comparing the evaluation report generated by the evaluation module to generate a training effect feedback report. The present application builds a closed-loop rehabilitation training mechanism, flexibly adjusts the stimulation means, stimulation degree and stimulation position according to the key dynamic data such as muscle contraction strength and swallowing frequency of the patient in the training process, improves the accuracy and effectiveness of the rehabilitation training, and improves the swallowing function rehabilitation effect of the patient.

1. The name of this design product: Portable Smart Charging Case. 2. Purpose of the product of this design: An intelligent charging compartment used to charge the therapeutic sub-unit of a swallowing disorder treatment instrument. 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: Stereoscopic drawing 1.

The invention discloses a tongue muscle exerciser for a patient with senile cognitive impairment accompanied with dysphagia, and relates to the technical field of rehabilitation. A tongue muscle exerciser for patients with senile cognitive impairment accompanied with dysphagia comprises a lower tooth fixing frame and an upper tooth fixing frame, and the top of the lower tooth fixing frame is fixedly connected with the upper tooth fixing frame through a height adjusting assembly. According to the tongue muscle exerciser for the patient with the senile cognitive impairment accompanied with the dysphagia, the resistance wheel A, the resistance wheel B and the resistance wheel C are designed to be movably connected, the edges are rounded, and hard corner angle structures of tools such as a tongue depressor are replaced, so that the risk that the oral cavity of the patient is scratched when the matching degree is low is effectively avoided, and the use safety is remarkably improved; by means of the compact overall structural design, the problem that a traditional silica gel trainer and a tongue pressure training ball are too large in size is solved, and the device is more convenient to carry and use in multiple scenes.

The utility model relates to a neck electrophysiological dysphagia monitoring device. The device is mainly composed of a shell, an adjusting bandage, a flexible detection electrode, a signal generator, a signal amplifier and a wireless transmission module. The adjusting bandage is formed by mixing elastic fibers and medical silica gel and can be adjusted according to the thickness of the neck of the patient, and stable and comfortable wearing is ensured. The flexible detection electrode adopts a graphene-based composite material or a conductive polymer, is in array grid layout, and can accurately collect electrophysiological signals of neck muscles during swallowing. The signal generator is connected with the flexible detection electrode through a shielded twisted pair, and assists in providing electrical stimulation and receiving a feedback signal. The signal amplifier amplifies the collected signal, and finally the wireless transmission module sends the processed signal to an external device. The device effectively solves the problems that traditional monitoring equipment is unstable in signal collection, uncomfortable to wear and the like, improves the accuracy and convenience of swallowing disorder monitoring, and has good clinical application value.

The utility model belongs to the technical field of medical instruments, and discloses a rehabilitation training device for a patient with dysphagia, which comprises a device main body, a main shaft, a spring ejector pin connector, a spring ejector pin, a spring ejector pin, a spring ejector pin and a spring ejector pin, the main shaft is arranged on the device body in a sleeving mode, the switching assembly is arranged on the main shaft in a sleeving mode, the multiple electrode tips are arranged in the switching assembly, and when the switching assembly is switched every time, only one part of the multiple electrode tips is moved out to the side, away from the device body, of the switching assembly all the time. According to the utility model, the technical means that the switching assembly is matched with the plurality of electrode tips is adopted, so that the models of the electrode tips can be quickly switched on the premise that the electrode tips are not disassembled, the defects in the prior art are overcome, and the technical effect of improving the working efficiency is further achieved.