135 results about "Humidified oxygen" patented technology

The invention discloses a preparation method of a solar cell, and the method comprises the following steps: placing an N-type silicon wafer in a furnace tube of a diffusion furnace, and introducing nitrogen and oxygen into the furnace tube to form a first oxide layer on the surface of the silicon wafer; boron trichloride, oxygen and nitrogen are introduced into the furnace tube, so that a boron diffusion layer is formed on the surface, away from the silicon wafer, of the first oxide layer; introducing nitrogen into the furnace tube, and controlling the temperature of the furnace tube to be a first temperature so as to carry out oxygen-free propulsion of the boron element; introducing nitrogen and oxygen into the furnace tube, and controlling the temperature of the furnace tube to rise from the first temperature to a second temperature so as to carry out aerobic propulsion of the boron element; dry oxygen and wet oxygen are alternately introduced into the furnace tube for multiple times to form a second oxide layer; the temperature in the furnace tube is reduced, and dry oxygen continues to be introduced into the furnace tube; and nitrogen is introduced into the furnace tube, the temperature in the furnace tube is reduced, and boron diffusion of the silicon wafer is completed. According to the preparation method of the solar cell, the silicon wafer can have low surface concentration shallow junctions and uniform sheet resistance.

The utility model discloses a wet oxygen process system which comprises a pure water circulating unit, a wet oxygen unit and a drainage unit, the pure water circulation unit comprises a water inlet pipe section, a circulation pipe section and a water return pipe section which are sequentially connected, an inlet of the water inlet pipe section and an outlet of the water return pipe section are connected with a peripheral pure water source, an outer circulation connecting pipe is arranged between the water inlet pipe section and the water return pipe section and provided with an outer circulation valve, and a water inlet valve is arranged at the water inlet end of the circulation pipe section. A water return valve is arranged at the water outlet end of the circulating pipe section; a plurality of water inlet branch pipes are arranged on the circulating pipe in parallel, the water inlet branch pipes are connected with the corresponding wet oxygen units one by one and used for supplementing pure water needed by the wet oxygen units, and water drained by the wet oxygen units is drained to the periphery through the drainage unit; and the circulating pipe section is also provided with a water quality detector, a water outlet and a first water discharge valve. According to the system, the quality of pure water in the internal main pipeline can be kept, the water quality can be conveniently monitored in real time, and little water is wasted during water changing.

The invention belongs to the technical field of medical equipment, and discloses an oxygen generator which comprises an adsorption cylinder, a compressor, a humidifying cup and a condensation water collection assembly, the adsorption cylinder is filled with an adsorbent for adsorbing nitrogen, the compressor is used for providing pressurized air for the adsorption cylinder, the humidifying cup is used for humidifying oxygen from the adsorption cylinder, and the condensation water collection assembly is used for collecting water from the adsorption cylinder. The humidifying cup is provided with a liquid inlet, the condensation and water collection assembly is provided with a liquid outlet, an air inlet communicated with the compressor and an air outlet communicated with the adsorption barrel, the condensation and water collection assembly is used for condensing water vapor in pressurized air generated by the compressor into liquid, and the liquid is discharged through the liquid outlet and enters the humidifying cup through the liquid inlet so as to supplement water to the humidifying cup; according to the technical scheme, the frequency that water needs to be supplemented to the humidifying cup is reduced, the use experience of a user is greatly improved, the humidity of pressurized air entering the adsorption barrel is greatly reduced, the phenomenon that an adsorbent is agglomerated due to humidification is improved, the service life of the adsorption barrel is prolonged, and the use cost of the user is reduced.

Provided is the OFF-VENT breathing system. The system uses novel combinations of the venturi effect, PEEP adapters, HMEs, and the adaptation of a novel oxygen delivery system for the creation of high flow therapy to maintain open airways while maintaining access to the patient's airways for medical instruments, other accessories, or to assist breathing in general. The system is designed to create high flow oxygen therapy in a manner that does not require the use of ventilators, active heating humidifiers and other expensive equipment. Embodiments described include a novel integration of the venturi system into a nasal cannula apparatus, and the novel combination of the venturi effect and a PEEP adapter into breathing systems that might include hyperinflation and Mapleson circuits.

The utility model discloses a water-free humidifying oxygen generator which comprises an oxygen generating box, an air inlet is formed in the left side of the oxygen generating box, a high-pressure fan is installed in the oxygen generating box body and corresponds to the air inlet in position, a coarse filter is installed on the right side of the high-pressure fan, a compressor is installed on the right side of the coarse filter, and a water outlet is formed in the right side of the compressor. The right side of the compressor is connected with a condenser, the right side of the condenser is provided with an atomizer, the atomizer is connected with an air outlet pipe, and the oxygen generation box is provided with a controller. According to the oxygen generator, water vapor in compressed air is condensed and separated out through the condenser, condensed water drops are changed into mist through the atomizer, the problem that oxygen prepared by the oxygen generator is dry is solved, meanwhile, a humidifying cup does not need to be externally connected, dirt is prevented from being left after water in the humidifying cup is treated, the cleaning cost is reduced, and the cleaning efficiency is improved. Equipment performance fluctuation caused by water evaporation or temperature change is avoided, and the running stability of the oxygen generator is improved.

The invention provides a heating and humidifying high-flow oxygen uptake bottle which comprises a humidifying oxygen uptake bottle, and an in-bottle oxygen outlet pipe and a gas passage partition plate are sequentially arranged in a humidifying cavity of the humidifying oxygen uptake bottle from top to bottom. A proper amount of humidifying liquid is arranged in a humidifying bottle cavity, and a closed oxygen humidifying channel is formed between the gas passage partition plate and the liquid level of the humidifying liquid to humidify oxygen flow. A heating structure is arranged at the bottom of the bottle to heat, humidify or heat and disinfect oxygen flow, water and electricity are separated, and comfort and safety of oxygen inhalation are guaranteed; oxygen flow is humidified and heated on the surface of humidifying liquid, the water adding amount is large, the humidifying and heating effects are stable, and safety and reliability are achieved; the oxygen uptake bottle can be disinfected at any time according to needs, and cross infection is avoided.

The invention relates to the technical field of oxygen inhalation and humidification, and discloses a medical oxygen inhalation and humidification device which comprises a first box body, the top of the first box body is fixedly connected with a shell, the top end of the shell is fixedly connected with a second box body, the second box body is fixedly connected with an air outlet pipe, and the top of the first box body is fixedly connected with an air inlet pipe. The air inlet pipe is sequentially communicated with the first box body, the shell, the second box body and the air outlet pipe. According to the medical oxygen inhalation and humidification device, when oxygen inhalation operation is carried out, oxygen makes contact with distilled water in the first box body, humidification of the oxygen is achieved, and therefore follow-up humidification and oxygen inhalation operation can be conveniently carried out; according to the medical oxygen inhalation and humidification device, oxygen can make contact with distilled water by changing the valve on the air inlet pipe, humidification and oxygen inhalation are achieved, oxygen can be directly discharged, and normal oxygen inhalation operation is achieved; according to the medical oxygen inhalation humidification device, during humidification operation, the atomization piece is opened, atomized distilled water and oxygen are mixed and then inhaled by a patient, and the humidification effect is improved.

The invention belongs to the technical field of oxygen humidification, and particularly relates to oxygen humidification equipment during oxygen supply, which comprises a humidification bottle, an oxygen supply pipe is fixedly connected to the lower part of the right side of the humidification bottle in a penetrating manner, a fixing frame is fixedly connected to the middle of the outer surface of the humidification bottle, and a bottle cap is in threaded connection to the upper part of the outer surface of the humidification bottle. A threaded hole is formed in the middle of the upper end of the bottle cap, an adjusting structure is in threaded connection with the interior of the threaded hole, and a recycling mechanism is fixedly connected to the upper side of the front portion of the humidifying bottle in a penetrating mode. The recovery mechanism is arranged on one side of the humidification bottle, when the device is used, humidified oxygen is discharged and passes through a semicircular disc cavity shell in the recovery mechanism, the oxygen is blocked by a baffle to condense large water molecules contained in the interior, condensed liquid drips and is collected in a collection bottle, and the situation that when oxygen is supplied, the oxygen is blocked by the baffle and flows into the collection bottle is avoided. Water molecules in oxygen are condensed in an oxygen pipe and sprayed out, and discomfort of a user is caused.

The invention discloses a treatment parameter extraction system suitable for nasal high-flow humidification oxygen therapy, and relates to the technical field of medical equipment. The problems that existing equipment cannot respond to dynamic changes of respiratory mechanics of patients, and accurate regulation and control are difficult to achieve according to individual differences of the patients are solved. Through a multi-sensor array and an innovative algorithm, oxygen conveying parameters are accurately monitored, intelligent regulation and control of equipment working parameters are achieved through a prediction and correlation model, it is guaranteed that the concentration of oxygen inhaled by a patient is stable, the gas conveying quality is optimized, and a treatment parameter extraction module adopts a signal processing and intelligent analysis technology; key treatment parameters of a patient can be accurately obtained, a basis is provided for formulating a personalized treatment scheme, multi-source data fusion and visual display are achieved, and medical staff can visually know the condition of the patient conveniently; and an abnormal alarm mechanism monitors parameter fluctuation in real time, so that the treatment safety of a patient is ensured, the accuracy, the intelligent level and the safety of oxygen therapy are improved, and more efficient and reliable treatment service is provided for the patient.

The invention provides a method for preparing a silicon oxide insulating layer through normal-pressure chemical vapor deposition, which comprises the following steps of: S10, etching a blind hole with a certain depth-to-width ratio on a silicon substrate by using photoresist as a mask plate; wherein the blind holes with a certain depth-to-width ratio can be arranged to be various blind holes with different depth-to-width ratios; and S20, deionized water is introduced into oxygen for humidification treatment, then wet oxygen is introduced into a CVD reaction cavity, the air pressure of the CVD cavity is atmospheric pressure, CVD is heated, the temperature is raised to 1000 DEG C, heat preservation is conducted for 3-5 h, the silicon substrate and the wet oxygen are fully reacted, and the silicon substrate and the wet oxygen are taken out after being naturally cooled to the room temperature. According to the technical scheme, the growth steps are simple, needed reactants and equipment conditions are simple, the silicon substrate, oxygen and water serve as reactants, the silicon oxide insulating layer with good uniformity and quality can be generated on the side wall of the blind hole, and it is guaranteed that the TSV device has the good insulation characteristic.

The present disclosure relates to respiratory apparatus and their method of use to assist with patient comfort. In part it discloses a respiratory apparatus for high flow therapy configured to deliver a flow of gases, the respiratory apparatus comprising: a humidifier configured to humidify the flow of gases based on one or more operating parameters, and a controller configured to control the humidifier, wherein the controller is configured to: obtain one or more prior operating parameters of the respiratory apparatus from one or more prior operating sessions, determine the one or more operating parameters based on the one or more prior operating parameters, and set the one or more operating parameters of the humidifier.

The utility model discloses a breathing machine humidifying atomizer, relates to atomizer field, including atomizer and airway tube, atomizer includes equipment casing and heating atomization structure, equipment casing is hollow inside, equipment casing inside is fixedly connected with the heating atomization structure, the inner wall of outer casing bottom is fixedly connected with air intake base, and the inner wall of outer casing bottom is fixedly connected with the air intake base. The utility model provides a humidifying atomizer of a breathing machine. An air guide pipe is fixedly inserted into the top end of the atomizer. The heating and atomizing structure is fixed in an equipment shell of the atomizer and plays a role in heating and humidifying oxygen and water mist in the atomizer; the movable top cover is connected to the top end of an atomizer shell of the heating atomization structure in a sliding mode and plays a role in controlling spraying of oxygen and water mist on the heating atomization structure. According to the respirator atomizer, water and oxygen can be heated and humidified through the built-in heating and atomizing structure, the heating temperature can be controlled, and the respirator atomizer is matched with medical staff to conduct adjuvant therapy on a patient.

1. The name of the product of this design: Humidifier bottle (blow molding type). 2. Purpose of the product of this design: Used in medical central oxygen supply system to humidify oxygen for users to inhale. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design.

The problem addressed by the present invention is to provide a method capable of activating a solid polymer fuel cell in a shorter time. In order to solve the problem, the present invention provides a method for activating a solid polymer fuel cell having an electrode membrane structure in which a positive electrode and a negative electrode are disposed facing each other with a solid polymer membrane interposed therebetween, the solid polymer fuel cell is heated at a set temperature that is set within a predetermined range (preferably from 100 DEG C to 300 DEG C (inclusive), more preferably from 100 DEG C to 200 DEG C (inclusive), and further preferably from 100 DEG C to 150 DEG C (inclusive), while the humidified hydrogen-containing gas that has been humidified is pressurized and supplied to the anode, and then the solid polymer fuel cell is heated at a set temperature that is set within a predetermined range (preferably from 100 DEG C to 300 DEG C (inclusive), more preferably from 100 DEG C to 200 DEG C (inclusive). The humidified oxygen-containing gas or the humidified nitrogen-containing inert gas after humidification is pressurized and supplied to the cathode.

The application discloses a multimodal integrated severe respiratory support system based on nasal airflow and phrenic nerve combined stimulation, and relates to the technical field of respiratory support systems.The technical scheme is as follows: the system comprises a host device, a special composite nasal high-flow pipeline assembly and a special phrenic nerve electric stimulation electrode assembly.The special composite nasal high-flow pipeline assembly is connected with the host device through a multifunctional high-flow ventilation interface, and high-flow humidified oxygen therapy airflow is delivered to a ventilation object through a nasal plug catheter to implement nasal airflow stimulation; the special phrenic nerve electric stimulation electrode assembly is provided with a matching adapter connector matched with a non-standard foolproof electric stimulation output interface and a stimulation electrode attached to the target area of the neck or chest of the ventilation object to implement phrenic nerve electric stimulation.The system integrates a ventilator, phrenic nerve electric stimulation and nasal airflow stimulation, and implements continuous nasal airflow stimulation while realizing synchronization of phrenic nerve electric stimulation and the ventilator.

The invention belongs to the technical field of wet oxygen processes, and discloses a wet oxygen system water changing method, a wet oxygen system and oxidation diffusion equipment. The water changing method for the wet oxygen system comprises the steps that the water passing set time length and the water changing set time length are set, if the water passing set time length is not smaller than the water changing set time length, starting of the water changing process is paused, first reminding information is reported, and the first reminding information can remind a user to change the water passing set time length and the water changing set time length; water quality detection is conducted in the water passing process, a water quality detection result is obtained after water passing is conducted for a set time length, if the water quality detection result meets the water quality requirement, the wet oxygen system is controlled to continue to conduct the water changing process, and otherwise, the water changing process is suspended; in the water changing process, if the actual water changing duration exceeds the water changing set duration, the water changing process is stopped, second reminding information is reported, and the second reminding information can remind the user to check the wet oxygen system. The water changing method of the wet oxygen system can ensure reasonable water quality detection and water changing, and further ensures the water changing process.

The utility model discloses a gas supply device and reaction equipment for the wet oxygen process, the gas supply device for the wet oxygen process comprises a water vapor generating assembly and a gas supply assembly, the water vapor generating assembly comprises a water storage container and a heat supply piece, the gas supply assembly comprises a first gas path and a second gas path, the first gas path introduces gas into the water storage container, and the second gas path introduces gas into the water storage container; gas entering the water storage container through the gas inlet carries water vapor above the liquid level of the pure water and is discharged from the water outlet; the reaction equipment comprises a gas supply device for the wet oxygen process. After the gas enters the water storage container, water vapor generated by evaporation of the pure water is liquefied into water vapor when encountering the gas, the gas carries the water vapor and enters the second gas path from the gas outlet, then the gas carrying the water vapor is introduced into the reaction chamber and participates in the wet oxygen reaction, and the gas introduced into the water storage container does not enter the pure water; the water vapor generated by pure water is discharged from the air outlet, the pure water is not disturbed by the air, the pollution to the pure water in the water vapor generation process can be reduced, and the water changing frequency is reduced.

The invention relates to the technical field of filtering devices, and in particular to an air filtering and purification system for a refractory material processing workshop, which comprises a shell, a filtering component, an activated carbon filter, a bracket and an exhaust mechanism; the exhaust mechanism pumps external air from an air intake grid into the shell, and particulate matter in the air is filtered, separated and adsorbed by the filtering component; the air is cooled by a cooling component in a processing chamber, and water vapor is condensed into liquid and falls into a water storage hopper, thereby reducing the humidity of the air passing through the activated carbon filter, thereby solving the problem of oxygen-containing functional groups on the surface of the activated carbon filter falling off in a wet oxygen environment to generate acetic acid, which affects product quality and worker health; thereafter, the activated carbon filter absorbs organic impurities in the air, and then the gas enters an exhaust chamber and is finally discharged from the shell, completing the filtering and purification of the air in the processing workshop, thereby ensuring the purity of the air in the refractory material processing workshop and providing conditions for the production and processing of refractory materials.

The utility model provides a rhinobyon assembly, nasal oxygen tube and ventilation treatment equipment, relates to medical instrument technical field, rhinobyon assembly includes rhinobyon main part and a pair of nasal fork tube, the rhinobyon main part is used for being connected with the intake tube, the pair of tubular nasal fork is connected with one side of the rhinobyon main part at interval so as to be communicated with the intake tube through the rhinobyon main part, the nasal plug assembly is characterized in that the nasal plug assembly is used for an open type air path, air resistance pieces are arranged on the two nasal fork tubes, and the air resistance pieces protrude in the radial direction of the nasal fork tubes and are used for blocking overflowing air between the nasal fork tubes and the nostrils of a wearer when the nasal plug assembly is worn. The nasal oxygen cannula comprises the nasal plug assembly. The ventilation treatment equipment comprises the nasal oxygen cannula. The air pressure change in a breathing loop between the expiration stage and the inspiration stage of a patient can be increased, the distinguishing capacity of the equipment for the breathing stage of the patient is improved, more accurate air supply control is achieved, more comfortable high-flow humidifying oxygen therapy experience is provided for the patient, and air is saved to a certain extent.

The present technology is directed to systems and methods that reduce the amount of oxygen used during high flow therapy. For example, the present technology includes systems and methods that (1) deliver oxygen to the patient during the inhalation phase of a breath at a flow rate between 15 lpm and 60 lpm, and (2) deliver air to the patient during the exhalation phase of the breath at a flow rate between 15 lpm and 60 lpm. Accordingly, the systems and methods can maintain a high flow to the patient during both the inhalation phase and the exhalation phase, but can change the type of gas being delivered to the patient during each phase to conserve oxygen.

The utility model relates to the field of medical equipment accessories, in particular to a medical oxygen flow meter connector conversion cover. Comprising a conversion cover body, a button, a clamping plate, a reset plate, a first elastic piece, a clamping rod, a sliding rod, a cover plate and a second elastic piece, the sliding rod is slidably connected into the conversion cover body, the cover plate is connected to the lower end of the sliding rod, the second elastic piece is connected between the cover plate and the conversion cover body, and the clamping plate is arranged on the front side of the top end of the cover plate; a reset plate is arranged on the rear side of the top end of the cover plate, buttons are slidably connected to the front end and the rear end of the conversion cover body, clamping rods are connected to the ends, close to each other, of the two buttons, open grooves are symmetrically formed in the conversion cover body front and back, and first elastic pieces are connected into the open grooves. By means of the linkage design of the button, the clamping rod, the clamping plate and the reset plate, medical staff can easily achieve switching between a humidifying oxygen inhalation mode and a non-humidifying oxygen inhalation mode.

The present technology is directed to systems and methods that reduce the amount of oxygen used during high flow therapy. For example, the present technology includes systems and methods that (1) deliver oxygen to the patient during the inhalation phase of a breath at a flow rate between 15 lpm and 60 lpm. and (2) deliver air to the patient during the exhalation phase of the breath at a flow rate between 15 lpm and 60 lpm. Accordingly, the systems and methods can maintain a high flow to the patient during both the inhalation phase and the exhalation phase, but can change the type of gas being delivered to the patient during each phase to conserve oxygen.

The invention discloses an airway humidification oxygen uptake device, and particularly relates to the technical field of airway humidification oxygen uptake, the airway humidification oxygen uptake device comprises an oxygen uptake mask, the air inlet of the oxygen uptake mask is provided with an oxygen inlet pipe group, and the air outlet of the oxygen uptake mask is provided with an air outlet pipe; an active heating and humidifying assembly is arranged on the oxygen inlet pipe set and comprises an outer box, a water cavity and a heating cavity which are distributed up and down are formed in the outer box, and an air pipe used for communicating the water cavity with the oxygen inlet pipe set is fixed to the top end of the outer box so that water vapor in the water cavity can conveniently enter the oxygen inlet pipe set to heat and humidify oxygen. The air outlet pipe is connected with a passive heating and humidifying assembly, and the passive heating and humidifying assembly is arranged on one side of the outer box, extends into the outer box and is used for recycling temperature and water in air exhaled by a patient to heat and humidify oxygen. The oxygen is heated and humidified by combining active and passive heating and humidifying, so that the electric heating energy consumption is effectively reduced, the cost is saved, and the safety is high.

The invention discloses an atomization / humidification dual-purpose inhaler which comprises an oxygen inhaler valve body, an atomization / humidification mode conversion cavity is formed in the oxygen inhaler valve body, and an atomization / humidification mode conversion valve matched with the atomization / humidification mode conversion cavity is arranged in the atomization / humidification mode conversion cavity. The atomization / humidification mode conversion valve comprises a movable valve element and a switching knob located at one end or two ends of the movable valve element, and the movable valve element is located in the atomization / humidification mode conversion cavity and movably connected with the atomization / humidification mode conversion cavity; a cavity is formed in the movable valve element, a groove body is formed in the outer side of the movable valve element in the circumferential direction, a humidifying oxygen inlet and a humidifying oxygen outlet are formed in the positions, on the outer side of the groove body, of the movable valve element, and the humidifying oxygen inlet and the humidifying oxygen outlet are communicated with the cavity; according to the atomization / humidification dual-purpose inhaler, a valve sleeve does not need to be used, and convenience is brought to use and installation.

The invention discloses a telescopic oxygen inhalation tube, which relates to the technical field of medical instruments, and is characterized in that the telescopic oxygen inhalation tube comprises a lower connecting tube and two nasal inhalation tubes, and the two nasal inhalation tubes are both connected with the lower connecting tube; an inner tube is arranged at the position, away from the nasal suction tube, of the lower connecting tube, and the outer side wall of the inner tube is sleeved with a containing tube. An upper connecting pipe is arranged at the top of the accommodating pipe; the end, away from the lower connecting pipe, of the inner pipe is provided with sponge, and the sponge is located in the containing pipe. A support is fixedly arranged in the inner pipe, a heating rod is arranged on the support, and a heating part of the heating rod is located in a cavity between the inner pipe and the containing pipe. According to the telescopic oxygen inhalation tube, the temperature in the tube can be increased, and small water drops are reduced; meanwhile, the oxygen inhalation tube can humidify oxygen by means of generated small water drops, and the amount of water vapor generated by the oxygen humidifier is reduced.

The utility model relates to a tensile strength testing device for a humidifying oxygen tube, relates to the technical field of detection equipment, and aims to solve the problem that existing strength testing equipment is complex in operation. The tensile strength testing device comprises a base, a supporting column is vertically arranged on the base, and a first pneumatic clamping jaw and a second pneumatic clamping jaw are arranged on the base and the supporting column respectively; the first pneumatic clamping jaw and the second pneumatic clamping jaw are oppositely arranged, the first pneumatic clamping jaw is fixedly connected to the base, the supporting column is provided with a driving mechanism used for driving the second pneumatic clamping jaw to ascend and descend, and a tensile strength tester used for recording the maximum tensile force borne by a material before the material is broken is arranged above the second pneumatic clamping jaw. The testing device has the advantages of being reasonable in design, compact in structure, easy and visual to operate and low in maintenance cost.

The invention provides a method for detecting an L-band defect of a silicon single crystal, and relates to the technical field of silicon single crystal defect detection, and the method comprises the following steps: 1, dissociating a silicon wafer to obtain a first silicon wafer; step 2, pre-cleaning the first silicon wafer to obtain a second silicon wafer; 3, performing heat treatment on the second silicon wafer to obtain a third silicon wafer; wherein the heat treatment process comprises the following steps: when the temperature of a heat treatment furnace is increased to 750-800 DEG C, a second silicon wafer enters the furnace, heat preservation is carried out for 2.5-3.5 hours at 980-1020 DEG C in a wet oxygen atmosphere, and then heat preservation is carried out for 90-130 minutes at 1130-1170 DEG C; 4, cleaning the third silicon wafer by using a mixed acid solution to remove a surface oxide film to obtain a fourth silicon wafer; and step 5, preferentially corroding the fourth silicon wafer by using preferential corrosive liquid, and sending the obtained sample wafer into a detection chamber for detection. According to the scheme, early-stage rapid detection of L-band defects can be realized, so that rapid process improvement is promoted.

The utility model discloses a portable pulse oxygen generator with a humidifying bottle. The portable pulse oxygen generator comprises an oxygen generator main body and the humidifying bottle, a strip-shaped groove is formed in the oxygen generator main body; the humidifying bottle is embedded into the strip-shaped groove and is integrated with the oxygen generator main body; the humidification bottle comprises a humidification bottle upper cover, a humidification bottle body, an air inlet assembly, an air conveying assembly and an air outlet assembly. A water storage cavity and an oxygen storage cavity which are separated from each other are formed after the humidification bottle upper cover and the humidification bottle main body are buckled in a sealing manner; the air inlet assembly is used for guiding oxygen output by the oxygen generator into water in the water storage cavity for humidification. The gas conveying assembly is used for conveying the humidified oxygen into the oxygen storage cavity; the air outlet assembly is used for guiding out oxygen in the oxygen storage cavity for use. The humidifying bottle is embedded into the strip-shaped groove to be integrally designed, so that the portability of the oxygen generator is improved, water in the water bottle cannot directly flow into the trachea no matter the humidifying bottle is in a static mode or a moving mode, the humidifying time is longer, and the humidifying noise is low.

The invention discloses a high-sheet-resistance wet oxygen diffusion method for obtaining low-concentration BSG, and belongs to the technical field of solar cell preparation. A multi-step source introduction method is adopted, the source introduction time is shortened, the source introduction flow is increased, rapid heating promotion is achieved, and a wet oxygen oxidation method and a low-temperature deposition method are innovatively adopted; wherein the low-temperature deposition method can slow the reaction decomposition of an impurity source and reduce the concentration of the impurity source deposited on the surface of a silicon wafer, so that the content of impurities diffused into a silicon substrate is reduced, the effect of deep and shallow junctions is finally realized, and the method is an effective method for preparing low-concentration shallow junctions and obtaining high sheet resistance; according to the invention, high sheet resistance with excellent uniformity is realized while the BSG with low impurity concentration is obtained, the process time is shortened, the subsequent LECO process is ensured to be more ideally realized, and finally, the battery conversion efficiency is improved to the maximum extent and the process time is shortened to the maximum extent.

1. The name of the product of this design: Heating and humidifying water cup. 2. Purpose of the product with this appearance design: used to heat and humidify oxygen in oxygen concentrators. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.