380 results about "Foreign body" patented technology

The invention discloses a liquid medicine foreign matter detection method and system based on machine vision, and the method comprises the steps: obtaining multiband spectral data of a liquid medicine sample, and carrying out the normalization processing to generate a liquid medicine background standard spectral feature template; comparing the refractive index spectral characteristics of the template and the foreign matter-containing liquid medicine, and recording the surface roughness scattering mode and polarized light reflection angle change data of a foreign matter area; calculating a spectrum peak displacement quantized value according to the polarized light data, and extracting foreign matter edge spectrum gradient information in combination with a threshold value; calculating a transparency spectral attenuation coefficient based on the edge gradient information, and obtaining spectral contrast enhancement factors of different foreign matters in combination with the spectral response characteristic data; and if the enhancement factor does not reach the standard, adjusting the spectrum correction parameter and recalculating, fusing the scattering mode and the multi-angle incident spectrum response result to carry out consistency verification, and obtaining a final identification result containing the foreign matter material type and the danger level. The method can improve the drug detection accuracy and guarantee the drug quality safety.

The invention discloses an escalator comb plate broken tooth defect and foreign matter invasion detection method and system, and the method comprises the steps: employing a trained detection model to recognize broken teeth and foreign matters, and employing the detection model as a frame, and inputting the small target fusion features output by the FPN structure, the low-layer local features extracted by the Conv module in the backbone network, the high-resolution shallow-layer features extracted by the PinwhelConv module, and the fused features into a detection head for small target detection. According to the method, the geometric feature capturing capability of the broken tooth profile is remarkably improved, and the small target detection effect is effectively improved.

The invention discloses a deep learning-based coal mine foreign matter visual detection system, which is characterized in that a coal mine image is acquired through a multispectral imaging technology, a static compensation image is obtained through registration, enhancement and motion compensation processing, multidimensional features are extracted, dimensionality reduction is carried out by utilizing principal component analysis to generate an optimized feature set, an improved YOLOv12 model is trained, and the visual detection of foreign matters in a coal mine is realized. A lightweight foreign matter detection model is obtained through parameter simplification and network optimization, and foreign matter real-time recognition and detection report generation are achieved. A time sequence analysis model is constructed by associating historical detection data, and a detection model is iteratively updated in combination with an incremental learning mechanism. Multispectral imaging and deep learning are combined, the foreign matter detection precision of the complex underground environment is improved, industrial site deployment is adapted through model lightweight design, the learning ability of the system for the foreign matter distribution rule is enhanced through a time sequence analysis mechanism, and efficient detection and early warning of the coal mine foreign matter are achieved.

The present invention discloses a multi-strand cable stranding device and a stranding method. The present invention relates to the technical field of cable manufacturing, and includes a tank body. An anti-foreign object mechanism is fixedly connected to the inner side surface of the tank body. The anti-foreign object mechanism includes an embedded wall. A net body is fixedly connected to the inner side surface of the embedded wall. An outer tube is fixedly connected to a position on the inner side surface of the embedded wall close to the net body. A blower is fixedly connected to the surface of the outer tube. An air pump is fixedly connected to the inner side surface of the blower. An anti-fracture mechanism is fixedly connected to a position on the inner side surface of the tank body away from the anti-foreign object mechanism. The anti-fracture mechanism includes a housing. Through the coordinated use of mechanisms such as the anti-foreign object mechanism, the separation component, the anti-fracture mechanism, and the flexible component, the multi-strand cable stranding device and the stranding method solve the problems of foreign objects sticking to the surface of the wire core resulting in wire core fragmentation and wire core breakage caused by inappropriate wire pulling tension.

The invention discloses a surgical foreign matter leaving monitoring method and device, computer equipment and a storage medium. Comprising the steps that when an operation starts, the gauze number is initialized; acquiring to-be-monitored video data; inputting into a gauze identification model to carry out gauze target identification; when the identification result is that the gauze target is identified, gauze color discrimination is carried out in a gauze color discrimination model to obtain a discrimination result; judging whether the color of the gauze target is white or not; if yes, adding one to the gauze number to update the gauze number; judging whether the current operation is finished; if yes, when the gauze quantity is not equal to zero, giving a gauze remaining alarm; if not, judging whether the color of the gauze target is red or not; if yes, subtracting one from the gauze number to update the gauze number, and judging whether the current operation is finished or not. According to the invention, automatic identification, positioning and counting of the gauze can be realized, and the gauze leaving problem in the operation process is solved.

The nuclear power station pool foreign matter collecting and transferring device comprises a shielding container and a collecting basket, the shielding container comprises a first containing cavity and is provided with shielding materials capable of shielding rays, and the collecting basket comprises a second containing cavity and can be arranged in the first containing cavity; and drainage structures are arranged on the collecting basket and the shielding container. According to the nuclear power station pool foreign matter collecting and transferring device, after the foreign matter is collected, the foreign matter does not need to be transferred underwater again, the collecting basket can be placed in the shielding container or the foreign matter is directly placed in the shielding container, and the shielding container can shield the foreign matter with high radiation dose; radiation of foreign matters to human bodies and the environment can be reduced, the operation risk of personnel is reduced, and use is simpler and more convenient; the shielding container and the collecting basket can be used in cooperation and can also be used independently, and on-site flexible use is facilitated; the arrangement of the drainage structure facilitates the discharge of radioactive residual water in the foreign matters, so as to reduce the foreign matter collection and transfer weight.

A foreign object removing socket adaptor includes a pusher, an adaptor, an external thread, an internal tread, and a stop. The pusher includes a drive head and a main shaft. The adaptor includes a tool body, a socket attachment body, and a main channel. The drive head and the main shaft are adjacently connected to each other. The external thread is laterally connected around the main shaft. The stop is connected to the main shaft, opposite of the drive head. The tool body and the socket attachment body are adjacently connected to each other. The main channel concentrically traverses through the tool body and the socket attachment body. The internal thread is laterally connected within the main channel. The main shaft is threadedly engaged with the main channel through the external thread and the internal thread.

An self-actuating grasping device and corresponding method of using the grasping device for retrieving a foreign object from a location in a patient's body. The grasping device has a handle with a self-actuating mechanism, an actuator on the handle coupled to an actuator wire, an elongated shaft member extending distally from the handle with the actuation wire coaxially disposed therein and opposing jaws at a distal end of the elongated shaft member that are coupled to the actuation wire and pivot between open and closed configurations. The self-actuating mechanism has a bias that imparts a closing force to the opposing jaws through the actuation wire. Actuation of the actuator is configured to impart an opening force to the opposing jaws through the actuation wire.

The utility model relates to the field of medical instruments, in particular to a jaw cyst windowing and pressure reducing device. The device comprises a guide part, a connecting part and a base which are sequentially arranged from top to bottom. And the small-diameter section of the guide part is positioned at the upper part. The connecting part is a cylinder, and the diameter of the connecting part is smaller than that of the bottom of the guide part. The short axis size of the base is larger than the diameter size of the bottom of the guide part. The bottom of the base is provided with a through hole penetrating to the position above the guide part, and a drainage channel is formed. The springback characteristic of soft tissue in the bag cavity is utilized, so that the guide part and the connecting part can be fixed in the bag cavity and cannot fall off; meanwhile, through the elliptic cylindrical base, the base is effectively prevented from entering the bag cavity, the shape of the vestibular groove is met, and the wearing is free of foreign body sensation and more comfortable.

The invention is suitable for the field of medical instruments, and provides a stent binding structure and a covered stent system. The stent binding structure comprises a tail end, a binding ring, a lock catch assembly and a stay wire end, the tail end comprises a uniknot ring with a first free section, the lock catch assembly is connected with the tail end, the binding ring and the stay wire end, the stay wire end is provided with a second free end, and the binding ring binds the covered stent. The binding rings and the lock catches can be sequentially released and released into non-knotted threads connected with the second free section, the situations of clamping stagnation and incapability of taking out are avoided, the problem that the threads are difficult to take due to the fact that the threads are wound on the covered stent to form spiral threads during thread removal can be effectively solved, no foreign matter is left in the body after an operation, and the success rate and the efficiency of the operation can be improved.

The invention discloses a bearing part intelligent detection and management system based on machine vision, and relates to the technical field of bearing manufacturing and detection. The method is used for solving the problems of bearing surface foreign matter recognition and pollution source tracking optimization. The system comprises a phase order correction and reconstruction module which generates a regularization weight factor through a high-frequency phase gradient, dynamically inhibits an order jump error of a raceway steep region, and outputs a high-precision three-dimensional shape and a gradient field; the coupling analysis module synchronously calculates local curvature entropy and polarization scattering intensity to realize foreign matter type identification and accurate positioning; the stress mapping decision module maps the foreign matter coordinates to a Hertz contact stress field, calculates a service life attenuation value in combination with a stress amplification coefficient, and generates a sorting priority decision map; and the pollution source reverse optimization module is used for dynamically adjusting dust removal equipment parameters based on foreign matter coordinate space clustering and assembly equipment position association. According to the system, closed-loop intelligent management of foreign matter detection and pollution source control is realized, and the bearing product quality and the production efficiency are improved.

The present invention provides a dental unit chair, including: a base unit; a seat unit that is installed on the base unit and configured to support a patient; a doctor table that is connected to the base unit and has a handpiece mounted thereon; an arm unit that is connected to the base unit so as to be positioned on an opposite side of the doctor table with respect to the seat unit; and a suction unit that includes a deformable suction line having a fixed end connected to the arm unit while communicating with a suction pump and a movable end movable with respect to the fixed end, the deformable suction line being configured to maintain a deformed shape according to the movement of the movable end and formed to cause a foreign object sucked from the patient to flow in a direction toward the suction pump while sequentially passing through the movable end and the fixed end.

The invention relates to the technical field of computer vision, in particular to a method for quickly identifying apparent defects of fish oil soft capsules. The method comprises the following steps: acquiring a reference region in a fish oil soft capsule image to be identified; obtaining a seed point in the reference area and a corresponding growth threshold value, carrying out area growth, and obtaining all foreign matter reference points in the reference area; acquiring an overlapping coefficient of a non-foreign matter reference point in the reference area, acquiring a new seed point and a corresponding new growth threshold when the overlapping coefficient of the non-foreign matter reference point is greater than a preset overlapping coefficient threshold, performing area growth, and acquiring a new foreign matter reference point; all the foreign matter reference points and the new foreign matter reference points in the reference area form a foreign matter area of the reference area, the foreign matter area of the area where each capsule is located in the gray level image is obtained, and defect recognition is conducted on the fish oil soft capsule image. According to the invention, the complete foreign matter area can be rapidly obtained, and the apparent defect identification of the fish oil soft capsule is more accurate.

The utility model discloses an umbrella-shaped dura mater closure repairing device, which relates to the technical field of medical treatment and comprises an upper umbrella cover and a lower umbrella cover which are oppositely arranged, the upper umbrella cover and the lower umbrella cover are respectively provided with a conical point, the conical point of the upper umbrella cover and the conical point of the lower umbrella cover are oppositely arranged and fixedly connected with each other, and an umbrella opening of the upper umbrella cover is arranged upwards when the device is in an open state. An umbrella opening of the upper umbrella cover is arranged downwards when the device is used, and the bottom face of the upper umbrella cover is attached to the top face of the lower umbrella cover. According to the utility model, the repairing mode of dura mater suturing during minimally invasive surgery is simplified, and the operation is simple during use; dura mater notches and defects are closed by means of attachment of the upper umbrella cover and the lower umbrella cover; umbrella covers of different sizes can be designed and used according to the size of a hard film notch, and meanwhile operation and imbedding in a channel are facilitated. The upper umbrella cover and the lower umbrella cover are made of absorbable materials, and foreign matter removal reaction is reduced; the upper umbrella cover and the lower umbrella cover are made of flexible materials, and operation in a channel is facilitated.

The present application relates to gastrointestinal endoscope accessory technical field, specifically provide a kind of foreign body extraction device for gastroenterology and its manufacturing method, device includes main air pipe and respectively communicated at both ends of main air pipe air bag cup and positive and negative pressure air pump;Air bag cup includes air bag cup framework and membrane structure;Air bag cup framework includes cup body, cup mouth air bag, support air bag, clamping air bag;The upper end of cup body is provided with suction port, and the lower end is communicated with main air pipe, and at least two opposite ends of cup body are provided with inflation port respectively;Suction port is provided with negative pressure valve, and inflation port is provided with positive pressure valve;Support air bag is supported between cup mouth air bag and cup body, and the inside of support air bag located in membrane structure is communicated with clamping air bag.The way of foreign body extraction gastrointestinal tract by negative pressure adsorption, compared with traditional jaw structure, without considering the gap between foreign body and gastrointestinal wall, without adjusting angle or orientation, with the characteristics of high operating efficiency, convenient operation.

A surgical instrument is disclosed herein. The surgical instrument can include an end effector that includes jaws configured to transition between an opened condition and a closed condition, a plurality of electrodes positioned within the jaws of the end effector, a control circuit, and a memory configured to store an algorithm configured to cause the control circuit to determine an impedance signal based on signals received from the plurality of electrodes, detect a media positioned between the jaws of the end effector based on the determined impedance signal, determine a position of the detected media based on the received signals, and generate an alert associated with the detected media and the determined position.

The invention discloses a pediatric infant tracheal foreign body taking-out device in the technical field of pediatric oral cavities, which comprises foreign body forceps and an endoscope, and further comprises an inflatable outer pipe sleeve, an inner sleeve is arranged in the outer pipe sleeve, and a plurality of connecting rods are arranged between the inner sleeve and the outer pipe sleeve. Two ends of the connecting rod are fixedly connected with the outer wall of the inner sleeve and the inner wall of the outer sleeve respectively; a plurality of annular grooves are formed in the outer wall of the outer pipe sleeve in a linear array mode in the axis direction, liquid collecting grooves are formed in the inner bottom walls of the annular grooves in the circumferential direction, and a plurality of first adsorption holes are formed in the inner side walls of the liquid collecting grooves in an annular array mode. Friction force between the expanded outer pipe sleeve and the trachea of the infant is increased through the annular groove, meanwhile, when secreted liquid in the liquid collecting groove is sucked through the first adsorption holes, certain negative pressure is formed in the annular groove, the stabilizing force between the inner wall of the trachea of the infant and the outer wall of the outer pipe sleeve is further increased, and therefore the situation that the outer pipe sleeve slides due to disordered movement of the child is reduced; and the foreign body forceps fall off the protection range.

The invention discloses an AI vision intelligent inspection and foreign matter recognition emergency shutdown system for a belt conveyor. The system comprises data acquisition and sample construction; constructing a DETR foreign matter recognition model; images are collected in real time, and online recognition is conducted through a DETR foreign matter recognition model; carrying out target tracking and behavior analysis based on a multi-target tracking algorithm of ByteTrack; a distance threshold value, a speed threshold value and a score threshold value are set; graded alarming is carried out, and a shutdown signal is sent to the PLC control unit under the shutdown condition. The system comprises an alarm module, an edge calculation unit, a communication module and a PLC control unit. The AI inspection camera, the edge calculation unit, the communication module and the PLC control unit are connected in sequence; the edge calculation unit comprises an AI identification module and a tracking and behavior analysis module. According to the invention, real-time identification, behavior judgment and automatic safe shutdown linkage control of foreign matters or abnormal states on the conveying line can be realized.

To provide a method for simply and efficiently evaluating the inducibility of a foreign matter response reaction in the skin of a test sample without using an animal, and to provide a substance having the inhibitory properties of the foreign matter response reaction in the skin and a method for searching the same.SOLUTION: The method includes a step of bringing keratinocytes transformed with a vector having an enhancer sequence containing a foreign body-responsive sequence and a sequence encoding a reporter protein downstream of the enhancer sequence into contact with a solution containing a test sample, a step of measuring the expression level of the reporter protein in the keratinocytes, and a step of evaluating the inducibility of a foreign body response reaction of the test sample in the skin based on the expression level of the reporter protein. The problem is solved by providing an agent for suppressing foreign matter response reaction in the skin containing fregula 1 found by the search method.SELECTED DRAWING: Figure 3

Provided are a catheter capable of suppressing generation of foreign matter from a joint section that joins a traction wire to a tubular member, and capable of preventing the joint section from interfering with other members, and a method for manufacturing the catheter.　A catheter (10) comprises: a movable tube (31) that is movable along the longitudinal direction; a wire fixing tube (90) that is disposed on the radial outer side of the proximal end of the movable tube (31) and extends beyond the movable tube on the proximal end side (31); at least one traction wire (80) that has a distal end and a proximal end and is sandwiched between the movable tube (31) and the wire fixing tube (90); and a first joint section (91) that is disposed between the outer peripheral surface of the movable tube (31) and the inner peripheral surface of the wire fixing tube (90) and joins the traction wire (80) to the movable tube (31) and the wire fixing tube (90). At least a portion of the proximal end of the first joint section (91) in a region sandwiched between at least the traction wire (80) and the wire fixing tube (90) in the longitudinal direction of the movable tube (31) is located on a reference position (P) where the proximal end of the movable tube (31) is located or farther to the distal end side than the reference position (P).

The utility model relates to the technical field of auxiliary equipment used after a child girdling operation, in particular to protective underpants used after the child girdling operation, which solve the technical problem that the protective underpants suitable for being used after the child girdling operation are lacked in the prior art and are characterized in that an opening is formed in the front crotch side of an underpants body, and son buckles are arranged on the two sides of the opening; sticking rough surfaces are arranged on the upper side and the lower side of the opening; the two sides of the shielding part are provided with mother buckles connected with the son buckles in a matched mode, and the upper side and the lower side of the shielding part are provided with pasting hook faces matched with the pasting hair faces; a ventilation seam area is formed in the center area of the shielding part, and ventilation holes are formed in the ventilation seam area; the two sides of the breathable seam area are respectively connected with a bag-shaped air bag, the side, facing the underpants body, of each bag-shaped air bag is provided with a protection area, the protection areas protrude out of the outline of the underpants body, and the underpants have the advantages of being convenient to disassemble and clean, free of the design of hard objects and foreign matter and capable of preventing children from clamping and abrading the inner sides of legs when the children use the underpants.

The invention relates to the technical field of detection equipment, and provides a bulk material X-ray foreign matter detection machine which comprises a shell assembly, an X-ray detector, a support mechanism, a conveying mechanism, a partition plate mechanism, a driving mechanism, a removing mechanism, a discharging conveying device and a discharging box. Wherein the conveying mechanism comprises a plurality of conveying frames, two connecting columns are fixed to the side faces of the conveying frames, and each connecting column is inserted into the moving area and freely moves in the moving area; every two adjacent connecting columns arranged on the corresponding adjacent conveying frames are connected through a hinge. Each conveying frame is provided with a detachable material receiving box; the partition plate mechanism is fixedly erected above the foundation frame, and the partition plate mechanism is divided into a plurality of conveying area channels; the driving mechanism is used for driving all the conveying frames to move forwards. On the basis, the conveying mechanism can be conveniently detached and cleaned, so that cleanness and sanitation during bulk food conveying are ensured.

The invention belongs to the technical field of foreign matter detection and recognition, and provides a battery compartment foreign matter recognition method and system based on laser scanning and AI recognition. A laser scanning module is used for scanning and collecting three-dimensional point cloud data in a battery cabin in a preset period, point cloud preprocessing is carried out on the collected original point cloud data, the collected original point cloud data are converted into a unified cabin coordinate system, point cloud segmentation is carried out, a hypersphere model of normal state point cloud is constructed based on a support vector data description method, and a hypersphere model is constructed. The abnormal state is judged through a dynamic threshold value, foreign matter position tracing is carried out according to personnel positioning data in combination with multi-period scanning data, and the multi-source data alignment precision and trajectory estimation stability are cooperatively improved through dynamic time warping and space-time filtering. The method can effectively extract complex features, improve foreign matter recognition precision, recognize foreign matters in real time, judge the properties of the foreign matters, improve data processing efficiency, automatically adapt to complex and changeable environments and ensure stable and reliable operation under various working conditions.

Implantable devices may include a single, first component or a plurality of components such as first and second components, the second component being flexibly coupled to the first component. A socket extends over one or more of the component(s), the socket being configured to enhance the inter-component interaction and / or including one or more exposed surface(s) configured to exhibit one or more tiers of foreign body responses within a range of possible foreign body responses.

The present application provides a cleaning device (100) and a foreign object detection method. The cleaning device (100) comprises a housing (1), a detection head (2), a telescopic device (3), and a detection member. A side wall of the housing (1) in a first direction is an opening wall (1b), and an opening (1c) communicated with the interior of the housing (1) is formed on the opening wall (1b); the detection head (2) is configured to detect a surrounding environment, and the detection head (2) has an extended state in which the detection head (2) extends out of the opening (1c) and a retracted state in which the detection head (2) retracts into the opening (1c); the telescopic device (3) is arranged in the housing (1), and the telescopic device (3) comprises a transmission mechanism (31) and a movable assembly (32); the movable assembly (32) is movably arranged on the transmission mechanism (31) in the first direction, the detection head (2) is arranged on the movable assembly (32), and the transmission mechanism (31) can drive the movable assembly (32) to move in the first direction, so that the detection head (2) is switched between the extended state and the retracted state; and detection ends (4) of the detection member are arranged between the opening wall (1b) and the movable assembly (32). The cleaning device (100) and the foreign object detection method that are provided in the present application can implement detection of a foreign object.

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward a sealing element assembly. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said sealing element assembly; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

The invention belongs to the field of high-voltage switch cleaning, and discloses a high-voltage switch product foreign matter quantitative detection method and related equipment. According to the method, feature data such as the length, the number and the diameter of foreign matter in a to-be-detected area of a high-voltage switch product on wiping paper are automatically extracted through the visual recognition technology; the foreign matter types are accurately classified by calculating the ratio of the length to the diameter of the foreign matter, and whether the size and the number of the foreign matter reach the standard is automatically judged based on the wiping paper type, the foreign matter type and the preset standard requirement so as to evaluate the detection qualification. By adopting the method, the problems of quantitative standard deficiency and insufficient precision in traditional detection are effectively solved, the precision of foreign matter parameter acquisition and the detection consistency are remarkably improved, the reliability of a judgment result is ensured, the high requirement of high-voltage switch equipment on refined detection is met, and the detection efficiency is improved. And the guarantee capability of product quality control and long-term stable operation of equipment is enhanced.

This invention discloses a closed-type intensive care unit disinfection device, mainly relating to the field of disinfection device technology. It includes a disinfection chamber with a door hinged to its surface, an observation window fixedly connected inside the door, and an isolation plate fixedly connected inside the chamber. It also includes a disinfection structure disposed on the surfaces of the disinfection chamber and the isolation plate for thoroughly disinfecting the protective clothing or gowns of medical personnel. The first disinfection component includes a booster pump. The beneficial effects of this invention are: through the operation of the disinfection structure, and with the cooperation of the first disinfection component, the second disinfection component, the support component, and the cleaning component, it achieves both thorough disinfection of the torso of medical personnel and cleaning and disinfection of foreign objects on the soles of their shoes, enabling the disinfection device to thoroughly disinfect the protective clothing or gowns of medical personnel, greatly improving the practicality of the disinfection device.

The utility model relates to the technical field of foreign body forceps, and discloses a pair of foreign body forceps for the digestive system department, which comprises a hollow strip rod, a clamping mechanism is arranged on the hollow strip rod, an expansion protection mechanism is arranged on the hollow strip rod and the clamping mechanism, the clamping mechanism comprises a hollow plate, the hollow plate is fixedly connected to the left end of the hollow strip rod, and the hollow plate is fixedly connected to the right end of the hollow strip rod. The expansion protection mechanism comprises a hollow block. By means of the design of the elastic air bag, the elastic air bag is extruded, air in an inner cavity of the elastic air bag can be conveyed into an inner cavity of the hollow block through the air pipe, the air enters the hollow cylinder accordingly, the sealing sliding block is pushed by air pressure to slide in the inner cavity of the hollow cylinder, and the arc-shaped expansion plate is unfolded; the contact surface of the arc-shaped expansion plate and the inner side wall of the digestive tract is arc-shaped, so that the digestive tract can be further expanded in the process of extracting the arc-shaped expansion plate, and the influence on the digestive tract can be avoided to the greatest extent.

The invention discloses a flusher structure for cleaning bladder foreign matters. The flusher structure comprises a first catheter, a first connecting tube, a three-way tube, a second catheter and a urine bag, the first connecting pipe is connected and communicated with the first conduit, one end of the three-way pipe is inserted into the first connecting pipe, and the other end of the three-way pipe is connected with the second conduit; one end of the second catheter is connected with the urine bag; a control valve is arranged on the three-way pipe and controls internal communication of the three-way pipe; a second connecting pipe is arranged on one side of the first connecting pipe, the second connecting pipe is communicated with the top of the first connecting pipe, and the second connecting pipe is used for leading in external air; when the bladder needs to be flushed, the control valve is operated to open a passage between the first end part and the second end part, the injector is inserted into the second end part, and the conical injection tube is clamped with the third end claw; then the solution in the injector is injected into the bladder for cleaning through the conical injection tube and the three-way tube; and after cleaning, a passage between the first end part and the second end part is closed, so that pollution is prevented.