31results about How to "Avoid disadvantages" patented technology

The application discloses a method and system for rapidly predicting a creep stress index of a tin-based solder alloy by integrating a model, collects element compositions, test temperatures and creep stress index values of the tin-based solder alloy from literature, and adds experimental data as dataset samples; the element compositions and test temperatures of the tin-based solder alloy are sorted out and used as features for modeling; the dataset is randomly divided into a training set and a test set in a 4:1 ratio; the collected creep stress index values of the tin-based solder alloy are used as target variables, and the features are used as independent variables; based on the divided training set, the independent variables are scaled by using RobustScaler, three learners are trained and integrated to obtain an R-X-L integrated model; and the R-X-L integrated model is used to rapidly predict the creep stress index of the test set samples and four independent experimental samples. The prediction model for the creep stress index of the tin-based solder alloy is simple, fast, low-cost, pollution-free and the like based on reliable literature data and a modeling method.

This invention relates to the field of biomedical image processing technology, and particularly to a cross-modal brain region image registration method based on differential homeomorphism. The method includes: registering the original T1-w image with an NMT-averaged standard template; registering the acquired cell architecture imaging and fluorescence imaging with the registered T1-w image; downsampling the fluorescence imaging and cell architecture imaging respectively; performing intensity correction; smoothing the cell architecture imaging / fluorescence imaging; re-downsampling the smoothed cell architecture imaging / fluorescence imaging; registering the T1-w image to the intensity-corrected cell architecture imaging / fluorescence imaging through affine transformation to obtain a deformation field; registering the T1-w D99 brain atlas to the cell architecture imaging / fluorescence imaging using the deformation field; and sampling the D99 brain atlas from the cell architecture imaging / fluorescence imaging to complete the registration. The advantages are: stronger robustness, higher accuracy, and no reliance on subsequent manual correction.

The application relates to a photovoltaic charging device in the technical field of charging control. The photovoltaic charging device comprises a photovoltaic assembly, a maximum power point tracking control unit, a voltage stabilizing circuit and a charging interface. The photovoltaic assembly is used for converting solar energy into electric energy. An output end of the photovoltaic assembly is electrically connected with an input end of the maximum power point tracking control unit. An output end of the maximum power point tracking control unit is electrically connected with an input end of the voltage stabilizing circuit. An output end of the voltage stabilizing circuit is electrically connected with the charging interface. The charging interface is used for electrically connecting a device to be charged. In this way, the photovoltaic charging device converts solar energy into electric energy and directly supplies power to the device to be charged, without a storage battery, thereby avoiding the related disadvantages of charging the storage battery, completely eliminating the safety risks such as liquid leakage and explosion, and having the remarkable advantages of sustainable power supply, simple maintenance, controllable long-term cost, excellent safety performance and the like, and being capable of meeting the outdoor flexible and convenient welding requirements.

The application relates to an alliance chain and MQTT-based Internet of Things cross-domain authentication system and method, and belongs to the Internet of Things cross-domain authentication field. The application first proposes an alliance chain and MQTT-based Internet of Things cross-domain authentication method, chains and traces related devices, gateways and authentication processes of the Internet of Things, efficiently completes access management and cross-domain authentication of the Internet of Things devices through MQTT, shields the bottom heterogeneity problem, simultaneously simplifies the authentication process between trust domains by using the alliance chain node consensus, and builds a trusted cross-domain information interaction environment for the Internet of Things. Compared with the prior art, the application mainly solves the problems of different authentication modes, different certificate forms and low efficiency of different systems, provides an efficient, simple and trusted cross-domain authentication process, and simultaneously provides an Internet of Things device and gateway related data collection and storage mechanism by the alliance chain+MQTT+Internet of Things cross-domain authentication system.

The present application relates to container flange joint technical field, especially to a kind of assembled welding-free flange and its installation method, including flow guide pipe, the both ends of the flow guide pipe are equipped with connecting portion and clamping assembly respectively;Connecting portion, it is used to connect external pipeline for being equipped with in container outside;Clamping assembly, including limiting piece and clamping piece;In use state, the limiting piece and clamping piece are equipped with in the both sides of container wall, for the flow guide pipe is fixed in the container wall, to realize the flow guide pipe and container inner cavity conduction;The flange of the present application is detachable and assembled as a whole, and the flange body and the barrel container can be assembled and disassembled, the present application can realize the flange installation and disassembly of container flow guide port outside large barrel container, avoid the drawbacks brought by traditional welding mode.

A neural network graph partitioning system and method are disclosed. The graph partitioning system is used to partition a neural network graph into a series of subgraphs and allows multiple subgraphs to be executed in available hardware subsystems. The system estimates the computation time and memory bandwidth of the partitioned subgraphs based on a cost function. The graph partitioning system is a hardware cycle estimation model that can be run quickly and implements parameterization of memory latency. The graph partitioning system supports heterogeneous partitioning for different types of accelerators, such as central processing units, graphics processing units, application specific integrated circuits, etc. A method of partitioning a neural network graph into a series of subgraphs is also disclosed.

This invention discloses a rolling method for Ti80 titanium alloy thin plates. The rolling method includes the following steps: 1. Rolling in a first heat to obtain a first rolled slab; 2. Cutting to obtain a first intermediate slab; 3. Rolling in a second heat to obtain a second rolled slab; 4. Cutting to obtain a second intermediate slab; 5. Rolling in a third heat to obtain a third rolled slab; 6. Cutting to obtain a third intermediate slab; 7. Covering with a steel clasp to obtain a covered lap-rolled ladle; 8. Rolling in a fourth heat, then unpacking, and finally performing shaping annealing to obtain the Ti80 titanium alloy thin plate. This rolling method, by controlling the rolling temperature at different heats and employing reversing cross-rolling between heats, combined with online reheating in the furnace, reduces the significant cracking of titanium alloys caused by temperature drops in traditional processes. It produces Ti80 titanium alloy thin plates with uniform and fine equiaxed α grains in the microstructure and meeting mechanical property requirements, suitable for shipbuilding, machinery, chemical, and petroleum industries.

The application provides a packer, which comprises a packer body, an expansion cone sleeved on the packer body and internally connected with the packer body through a first sealing element, an expansion sleeve connected on a tapered part of the expansion cone, the expansion sleeve being provided with a second sealing structure for sealingly connecting an outer sleeve in operation, a support sleeve having one end connected with and supporting one end of the expansion sleeve and the other end connected with the packer body in a direction away from the expansion cone, and a locking ring fixedly connected with the support sleeve and locking the support sleeve on the packer body. The packer is resistant to high temperature and high pressure, has good adaptability to the sleeve, and has good anti-suction and energy storage and tightening effects.

The present application relates to a kind of space particle detector based on silicon detector module and its detection method, comprising: silicon detector module, main amplifier, ADC collector and FPGA processor;Wherein, the silicon detector module includes: a piece of silicon semiconductor detector and ASIC device mounted on the same printed board;The ASIC device includes: charge preamplification module, fast shaping circuit and slow shaping circuit.The detection device of the present application adopts silicon detector module, and integrates silicon semiconductor detector and ASIC device, with charge signal amplification, fast / slow voltage pulse signal shaping function;It can also measure the energy spectrum and flux of charged particles;And, through ASIC module and differential amplifier circuit, the consistency of voltage signal input / output linearity is improved;When used for space charged particle measurement, through the high integration and shielding structure design of silicon detector module, the low noise, high integration requirement of space particle detector is reached, and the signal-to-noise ratio is improved.

The application provides a condenser assembly and a refrigerating device for an airplane, wherein the condenser assembly is applied to the airplane and comprises a condenser body having a first air port at a top end thereof and a second air port at a bottom end thereof, a heat exchange airflow flowing into the condenser body through one of the first air port and the second air port and flowing out through the other one of the first air port and the second air port, and a water collecting tray comprising a shell having a water collecting area at a bottom thereof and a ventilation area at an upper area of the water collecting area, wherein the ventilation area is arranged at least partially around a bottom end area of the condenser body, a water collecting depth of the water collecting area decreases from a middle to side edges, and a drain pipe is arranged in the water collecting area. The defrosting water collected in the water collecting area is not easy to overflow through the ventilation area at a higher position, so that the water collecting effect of the water collecting tray on the defrosting water is ensured, and the defrosting water on the condenser body can be reliably collected in the water collecting area of the shell under an inclined working condition.

The utility model relates to the technical field of hair driers, in particular to a hair drier which comprises a machine body and a replaceable filtering assembly, an air inlet part is arranged at one end of the machine body, an inner air inlet is formed in the air inlet part, the filtering assembly is detachably connected with the air inlet part, and air enters the machine body through the filtering assembly and the inner air inlet. The filter assembly can be replaced, and the filter assembly is detachably connected with the air inlet part, so that the filter assembly can be conveniently separated from the air inlet part during ash removal so as to directly replace a new filter assembly, and the filter assembly can be replaced and cleaned immediately after being disassembled. When an existing high-speed air blower brings high air speed, dust and impurities in the using environment are easily adsorbed on an air inlet mesh cover and enter the air blower in the using process, and the performance and safety problems that a motor is damaged, internal PCB devices are oxidized and the like are caused are solved. The detachable filter element is additionally arranged between the air inlet net cover and the external air inlet, so that the service life of the blower is greatly prolonged, and performance reduction and safety risks caused by dust accumulation are reduced.

The utility model belongs to the technical field of optics, and particularly relates to an optical wave plate optical axis marking device with an adjusting function, which comprises a base, the right side of the base is fixedly connected with a sliding rod, the right side of the sliding rod is fixedly connected with a sliding seat, the left side of the upper end of the base is fixedly connected with a vertical plate, and the upper end of the base is provided with a lifting mechanism. The sliding rod is provided with an adjusting mechanism. The second telescopic rod is connected with the pushing block, the pushing block is connected with the sliding sleeve, and the sliding sleeve is slidably connected to the sliding rod in a sleeved mode, so that the wave plate supporting frame is conveniently and automatically pushed to move left and right, the wave plate is driven to move left and right, and the disadvantage caused by manual adjustment is avoided; the connecting block ascends and descends to drive the light source device to ascend and descend, so that the light source device ascends and descends up and down, the light source device is limited through sliding connection of the limiting block and the limiting groove, and the installation stability is improved.

The utility model discloses a kind of shower nozzles for orchard irrigation, including shower nozzle main body, water spraying nozzle, rotating shaft, blocking part and spiral part. Multiple water spraying openings are evenly provided in the outer ring surface of water spraying nozzle;Blocking part is provided with the matching shielding surface with the inner ring surface of water spraying nozzle;Spiral part drives rotating shaft and blocking part to rotate under water flow impact, so that the shielding surface periodically shields each water spraying opening in turn, realizes water spraying in turn. The utility model is driven by water flow, so that water spraying opening is intermittently opened, concentrated water pressure improves range, and expands irrigation coverage.

The invention relates to a reinforced toe cap fabric, the fabric comprises first knitting areas and second knitting areas which are alternately distributed, the first knitting areas are formed by knitting weft yarns and aramid warp yarns into a three-layer three-dimensional deep angle connection structure, the second knitting areas comprise first parts and second parts which are alternately distributed, and the first knitting areas and the second knitting areas are formed by knitting weft yarns and aramid warp yarns into a three-layer three-dimensional deep angle connection structure. The first part is formed by weaving weft yarns and aramid warp yarns in a three-layer three-dimensional deep angle connection structure, and the second part is formed by weaving weft yarns, carbon fibers and thermofuse warp yarns in a three-layer plain structure. The reinforced toe cap fabric is integrally formed, so that the integration of the structure and the function is realized; high-performance fibers are blended, respective characteristics are fully exerted, and defects are avoided; the weight of a product is reduced, the performance of the product is improved, on the basis that the test passes, 70-80 grams can be produced for each pair, and the weight of a conventional composite toe cap on the market is about more than 100 grams; and the material with high specific strength and high specific modulus is more comfortable.

The utility model relates to the technical field of industrial coating, concretely is a kind of coating liquid circulation supply device, it includes: bottom plate and circulating tank, circulating tank is installed in the left end of bottom plate top, the top of circulating tank is fixedly installed with liquid level sensor, temperature sensor is fixedly installed in the upper end of circulating tank inner wall, the upper end of circulating tank left side is connected with diluent delivery pipe, and one end of diluent delivery pipe is provided with electric control valve.The utility model can guarantee the continuous, stable delivery of coating liquid on the surface of coating roller, reduces the operation participation of artificial, can realize circulation supply, avoids the adverse factors brought by sectional control, and guarantees the uniformity of coating roller coating, and the viscosity in the use process of coating liquid can be detected, and the use viscosity of coating liquid is always in the best state, and the uniformity of coating liquid coating is guaranteed.

According to the specific implementation mode, a grouting sleeve is arranged at the upper end of a vertical column rib, the upper end of the grouting sleeve is open, the lower end of the vertical column rib of an upper layer prefabricated frame module unit is inserted into the grouting sleeve to achieve connection, and a top plate is of a structure with the fully-prefabricated center and the periphery laminated layer. Post-pouring holes are formed in the side faces of the beams, and shear-resistant steel bars are inserted to form connecting structures on the lower portions of the adjacent beams. Through optimization of a column vertical rib connection form, innovation of a top plate structure and improvement of a beam connection structure, the defects that in the prior art, pressure grouting operation is complex, connection construction conflicts with indoor decoration, and the connection strength between modules is poor are overcome, the connection strength of prefabricated frame module units is improved, the construction difficulty of a construction site is reduced, and the construction efficiency is improved. And the control difficulty of the connection construction quality is reduced.

A crawler-type intelligent vehicle-mounted infrared telemetering alarm device mainly comprises a crawler-type intelligent vehicle, an infrared telemetering alarm device, a weather instrument, a binocular camera, a satellite positioning device and the like. The environment monitoring system provided by the device moves along with movement of the crawler-type intelligent vehicle body, environment data of all positions in the environment can be monitored, the defect that multiple monitors are needed in the prior art is overcome, the monitoring cost is reduced, the intelligent degree is higher, practicability is high, and application and popularization are facilitated.

The application discloses a laser photolysis-infrared spectrum combined technology-based atmospheric cl intermediates generation and detection system and a detection method, and the system comprises a low-pressure flow tube sampling module, a excimer laser photolysis module, a high-vacuum ultralow-temperature reaction cell module and an in-situ Fourier transform infrared spectrum detection module; the low-pressure flow tube sampling module is used for conveying mixed gas to the high-vacuum ultralow-temperature reaction cell module; the excimer laser photolysis module is used as a photolysis source and is guided to the high-vacuum ultralow-temperature reaction cell module through an optical path; and the in-situ Fourier transform infrared spectrum detection module is used for collecting and analyzing infrared spectrum of a captured sample on a cesium iodide cold window surface of the high-vacuum ultralow-temperature reaction cell module. Through the low-pressure flow tube premixing and the working mode of "photolysis and deposition simultaneously", the application can efficiently and in-situ generate CIs in an ultralow-temperature matrix isolation environment, and realize high-sensitivity and high-specificity infrared detection.

The application discloses a plugging glue and a preparation method thereof. The plugging glue raw material comprises the following components in percentage by mass: 9-25% of photocuring resin, 0.5-1% of a photo initiator, 70-85% of modified inorganic fillers and 4-6% of modified heat-conducting fillers; the modified inorganic fillers are inorganic fillers modified by a silane coupling agent; and the modified heat-conducting fillers are heat-conducting fillers modified by a silane coupling agent. The photocuring resin, the modified inorganic fillers and the modified heat-conducting fillers are compounded, so that the plugging glue has excellent viscosity and rapid curing performance, the shortcomings of traditional high polymer adhesives are overcome, and the plugging glue can be used for rapidly plugging the inflatable equipment under pressure, and can be applied to the rapid pressure plugging of the sand eye cracks, micro cracks and annular leaking parts of the inflatable equipment.

The application discloses a preparation method of a pure-phase 2D perovskite passivation layer and application thereof. The method for preparing the single-n-value two-dimensional perovskite passivation layer is characterized in that: a passivation molecule is directly reacted on the surface of a perovskite absorption layer by a hot-pressing method to generate a single-n-value two-dimensional perovskite, which can effectively passivate defects on the surface and at the grain boundary of the perovskite, reduce non-complex radiation centers of the perovskite thin film, adjust the energy level of a solar cell, and further improve the photoelectric conversion efficiency of the solar cell; on the other hand, the perovskite thin film after passivation can inhibit ion migration, thereby effectively improving the stability of the solar cell. The perovskite thin film passivation method is simple in operation, can be produced on a large scale, and can effectively avoid the disadvantages caused by a solvent method. The method can also process large-area perovskite thin films, thereby providing a new strategy for preparation of a perovskite module.

This invention discloses a pseudo-leucane-type diterpenoid compound, its extraction method, and its application, belonging to the field of insecticide technology. The compound is extracted from the whole plant of *Euphorbia pekinensis*, and the extract is obtained by repeated soaking and concentration in methanol. It is then dissolved in water at 40°C and successively extracted with petroleum ether and ethyl acetate. The extract is purified through multiple steps to obtain 16 pseudo-leucane-type diterpenoid compounds with different structures. This series of compounds can be used as active ingredients in the preparation of insecticides, exhibiting good insecticidal activity against various pests such as *Tetranychus two-spotted*, *Tetranychus carmine*, aphids, and diamondback moths at a concentration of 100 mg / L. Compound 13 showed a 48-hour lethality of 89.14% against *Tetranychus two-spotted*. Furthermore, these compounds are characterized by low toxicity, easy degradation, and environmental friendliness, making them suitable for pest control in green agriculture.

This invention belongs to the field of steel material processing technology and discloses an ultra-low carbon weather-resistant wire rod for protective netting and its production method. The composition of the wire rod, by weight percentage, is as follows: C≤0.10%, Si≤0.08%, Mn≤0.10%, P≤0.015%, S≤0.008%, Cu 0.20~0.30%, Cr≥1.85%, Mo≥0.45%; the balance is iron and unavoidable impurities. When C<0.03%, Cr+0.8Mo≥2.35%; when 0.03≤C≤0.06%, Cr+0.8Mo≥2.85%; when 0.06%<C≤0.10%, Cr+0.8Mo≥3.20%. The steel wire produced by this invention has suitable strength and excellent corrosion resistance. It does not require hot-dip galvanizing, overcoming the disadvantages of hot-dip galvanized materials, meeting the requirements of coating-free and maintenance-free use, and reducing production and maintenance costs.

The invention provides a power distribution network line overload early warning method, device and equipment under source load intensity fluctuation, and relates to the technical field of power system analysis. The method comprises the following steps: extracting multi-dimensional features from source-side output data, load-side power consumption data and line operation parameters of a target power distribution network, and generating a multi-dimensional early warning feature vector; based on the multi-dimensional early warning feature vector and a trained load prediction model, calculating an overload risk value of each line in the target power distribution network; in a preset dynamic threshold matrix, selecting a dynamic risk threshold corresponding to the operation state of the target power distribution network; wherein the dynamic threshold matrix comprises dynamic risk thresholds corresponding to different operation states of the target power distribution network; and performing line overload early warning on the target power distribution network based on the overload risk value and the dynamic risk threshold value of each line. According to the invention, the accuracy and reliability of early warning can be greatly improved.

This invention discloses a non-detachable safety belt hook, relating to the field of construction safety protection technology. The non-detachable safety belt hook includes two openable and closable rings. Each ring has a connecting rod fixedly connected to one end near a connecting block. The connecting rods are simultaneously connected to both sides of the connecting block. The connecting rods can be moved via a handle on the connecting block, thereby controlling the opening and closing of the two rings. The handle design ensures that two rings are locked during movement, and at least one ring remains locked throughout the process of passing over the scaffold. This achieves a closed-loop connection with the scaffold structure throughout the entire process, effectively preventing the hook from detaching from the scaffold unintentionally. The hook can pass through three-way crossbars, cross shafts, and various types of scaffolding without detachment, avoiding the drawbacks of traditional safety belts and maximizing worker safety. This improves the safety and applicability of the device. Furthermore, the invention has a simple and reasonable design structure, making it highly valuable for widespread application.

The application provides a device and a method for preparing nano-hydroxyapatite powder with controllable morphology, which comprises a deposition device, a heating device, an ultrasonic device and a fixing device; the deposition device comprises a heating box, the bottom of the heating box is provided with an output end of the ultrasonic device and the heating device, and the internal cavity structure is provided with a deposition container; the fixing device comprises a lifting structure, the lifting structure is detachably connected with an anode and a cathode, and the anode and the cathode are electrically connected with an electrochemical workstation respectively; the cathode is arranged in a half-wrapping mode at the bottom and the side of the anode; the application has the advantages of simple structure, convenient operation, low cost, short time, large preparation amount, precise control of the grain morphology of nHA, greatly reduced synthesis cost of HA grain, and avoidance of the defects of long time and reaction by-products in the hydrothermal synthesis method.

The application relates to a one-way valve applied to a dental treatment device, which comprises a valve body, an inflow hole and an outflow hole communicated with a valve cavity channel in the valve body, a valve core and a power elastic piece driving the valve core to move to the inflow hole direction in the valve cavity channel; the outer circumferential surface of the valve core is slidably matched with the inner wall of the valve cavity channel, a plurality of flow-through grooves are arranged on the outer circumferential surface of the valve core, a blocking part is arranged on the head end of the valve core, an avoiding flow-through groove is arranged on the tail end surface of the valve core, the tail end of the flow-through groove is communicated with the avoiding flow-through groove, and the avoiding flow-through groove corresponds to the input end of the outflow hole. The guiding structure and the flow-through structure are integrated on the outer circumferential surface of the valve core, the moving quality of the valve core can be guaranteed, the efficiency and stability of fluid flow-through after the valve core is opened can be improved, the working reliability and use stability of the one-way valve as a whole can be improved, and the stable use of the one-way valve in the dental treatment device can be guaranteed.

This invention discloses a PBP peptide that specifically binds to PD-1, its screening method, and its applications. The PBP peptide has the sequence shown in SEQ ID No. 1. This invention uses bacterial surface display technology to screen for PD-1-targeting PBP peptides. These peptides specifically bind to PD-1, exhibit cross-reactivity with human and mouse PD-1, and can competitively bind to PD-1 with PD-L1, effectively blocking the interaction between PD-1 and PD-L1, reversing the function of exhausted T cells, and exerting an anti-tumor effect. Compared to antibodies, the PBP peptide obtained in this invention has a small molecular weight, strong penetration ability at tumor sites, low production cost, simple preparation process, and does not cause serious immune-related side effects. While achieving corresponding therapeutic effects, it avoids the disadvantages of antibody drugs, providing a low-molecular-weight candidate drug for tumor immunotherapy.

The application relates to the technical field of solar cells, and provides a back contact cell, a cell assembly and a photovoltaic system. A first polarity region of the back contact cell is stacked with a first tunneling layer and a first doped layer. The first tunneling layer comprises a first nitride layer. A plurality of holes are formed on the first tunneling layer. The surface of the first polarity region is a rough surface. The first polarity region has a plurality of first pyramid structures. The first pyramid structure has a first tower base inclined surface. The first tower base inclined surface comprises a first region, a second region and a third region arranged in sequence along the direction from the bottom of the first pyramid structure to the top of the first pyramid structure. The second region is located between the first region and the third region. The hole density of the part of the first tunneling layer located on the third region is greater than the hole density of the part of the first tunneling layer located on the second region. In this way, the Auger recombination loss increase in the body region can be reduced, the collection efficiency of carriers can be improved, and the defects in the silicon substrate can be reduced.

The utility model discloses a miniature portable electric arc igniter, and relates to the technical field of igniters. The ignition device comprises a shell, an ignition seat, an ignition coil and a circuit board are arranged in the shell, an ignition hole is formed in the ignition seat, the high-voltage output end of the ignition coil penetrates through the ignition hole and is exposed out of the shell, a Type-C interface and an ignition switch are integrated on the circuit board, a through groove is formed in the shell, and the Type-C interface and the ignition switch are arranged in the through groove. The ignition switch penetrates through the through groove and is exposed out of the shell. The Type-C interface is arranged on the side face of the shell and electrically connected with the ignition coil through the circuit board. The circuit board used for driving and the ignition coil used for generating high voltage are arranged in the igniter, compared with an existing portable igniter, the portable igniter is smaller in size, lighter in weight and miniature in design, a universal Type-C interface is used for supplying power, a built-in battery or a special charger is not needed, the defects of the existing portable igniter are effectively overcome, the market is widened, and the portable igniter is worthy of popularization and application. Therefore, the practicability is improved.

The invention relates to a balloon catheter for transurethral use, having a proximal region (2) comprising an at least single-lumen catheter shaft (4) with an inflation lumen and an inflatable balloon (5) connected in a fluid permeable manner to a distal end of the inflation lumen, and a distal region (3) comprising a distal rod (7) and a distal tip (9). The balloon (5) is coated with a drug and the insertion aid (10) is arranged at least in the proximal region (2). The insertion aid (10) is arranged in a tubular shape at least in the region of the balloon (5), and the length of the tubular portion is at least equal to the length of the balloon (5). The balloon catheter according to the invention allows conservative treatment of benign prostatic hyperplasia without the use of additional imaging methods.