205results about How to "Avoid cross infection" patented technology

The present invention discloses a disposable endoscope sheath, comprising an insertion portion, a control portion and an endoscope locking portion, wherein the insertion portion comprises a sheath head and a sheath tube; the control portion comprises a main body, a water inlet and outlet valve and an instrument adjusting knob; and the endoscope locking portion comprises an extension endoscope bridge, a locking sleeve and a protective cover. The sheath head is located at the front end of the insertion portion and is connected with the sheath tube in the rear. The sheath tube is connected with the extension endoscope bridge of the endoscope locking portion through a main body. The water inlet and outlet valve and the instrument adjusting knob are located on the main body of the endoscope sheath. The sheath tube is a multi-channel structure, and the outer surface of the insertion portion has scale marks. The present invention has the beneficial effects in that the disposal use avoids cross infection, and the demands of different endoscopic surgeries can be satisfied.

The invention discloses a paper towel, which comprises two surface layers positioned on the outer sides of the paper towel and at least one core layer positioned on the inner sides of the paper towel, wherein the adjacent layers are bonded; each surface layer is paper made of plant fibers; and at least one core layer is dust-free paper containing a solid detergent. The invention also provides a manufacturing method for the paper towel. The detergent component is added onto the core layer of the paper towel, and the detergent is left on the paper towel in a solid form, so active ingredients in the detergent can be kept on the paper towel for a long time. Once the cleaning paper towel is in contact with a small amount of water, rich and fine bubbles can be produced, so that the paper towel has the functions of sterilization and decontamination and can be used as a kitchen towel, a dish washing towel and then cleaning cloth. The paper towel is disposable, so that cross infection of bacteria and viruses is avoided; and the paper towel also has the advantages of portability, low price, convenience in use, irritation prevention and the like.

Disclosed is an intelligent type urinary bladder radio frequency thermal chemotherapy therapeutic equipment comprising a multi-cavity treatment conduit, a temperature sensor, a radio-frequency heating apparatus, a radio-frequency heating electrode, a sensing unit adapting circuit, a data input/output circuit, a body section and a peristaltic pump arranged on the upper layer mounting plate in the body section, the radio-frequency heating device is connected with the radio frequency heating electrode through lead connection, the temperature sensor is connected with the sensing unit adapting circuit through lead connection, the input/output circuit is connected with the sensing unit adapting circuit and radio-frequency heating device through lead connection.

The invention relates to the technical field of daily necessities, particularly a fragrant panel, and a preparation method and application thereof. The fragrant panel is prepared from the following components in percentage by mass: 81-96% of plastic, 2-4% of assistant and 2-15% of plastic granule or resin. The fragrant panel is applicable to shells of computer cabinets, notebook computers, mice, mobile phones, computer keyboards and computer displays, and outer panels of MP3 players, MP4 players, electric sockets, indoor electric receptacles, indoor lamp switches and electric power outlets as well as phone shells, television shells, washing machine shells, radio decorative panels, air outlet gratings of air conditioner shells, electric fan blades and lamp shells. Compared with the prior art, the panel can emit enduring fragrance, and does not occupy indoor space; and by selecting materials with different fragrances and adding bacteriostatic and mildewproof fragrant master batch, the panel of the electronic product can be bacteriostatic and mildewproof for a long time no matter who touches the electronic product, thereby avoiding cross infection.

The invention discloses a healthy defecation-assisting microcomputer-controlled toilet. The healthy defecation-assisting microcomputer-controlled toilet comprises a toilet seat body and an intelligent toilet cover body. The intelligent toilet cover body comprises a main water storage bin, an intelligent control bin, a controller, an overturning type toilet cover and an overturning type toilet seat. A physical examination handle is arranged on the side face of the intelligent toilet cover body and is provided with a physical examination sensor and a manually-controlled input device. The physical examination sensor can detect heartbeats, blood pressures, heights, weights and special sick body smells of human bodies. The intelligent control bin is provided with a negative-pressure defecation-assisting excrement sucking device, and the negative-pressure defecation-assisting excrement sucking device is provided with a deobstruent pipe, an excrement discharge elbow and a suction fan. The excrement discharge elbow is provided with an excrement discharge channel and a negative-pressure channel. The negative-pressure channel is connected with the suction fan. The healthy defecation-assisting microcomputer-controlled toilet can collect user information and physical data, analyze and feed back users' real-time physical health conditions through a special data analysis system and provide nursing or treating suggestions and is simple, low in cost and free from upgrade, thereby being a health helper to users.

The invention discloses a cervix uteri and vagina histocyte sample acquisition device for an HPV detection experiment, and belongs to the technical field of medical apparatuses. The cervix uteri and vagina histocyte sample acquisition device mainly comprises a cervix uteri extending element, an acquisition element and a power source device, wherein the acquisition element comprises limiting fixingframes, an acquisition adjusting rod and an acquisition head. According to the cervix uteri and vagina histocyte sample acquisition device disclosed by the invention, the vagina of a patient is expanded through the cervix uteri extending element, so that the acquisition adjusting rod can conveniently enter for histocyte acquisition, and shooting of the cervix uteri and the vagina inner wall of the patient, by a camera is clearer; when being in contact with the vaginal orifice of the patient, the cervix uteri and vagina histocyte sample acquisition device is limited by the acquisition adjusting rod, so that the situation that the patient is damaged because a cervix uteri extending air sac and supporting pinch plates are inserted too deep is avoided; through a replaceable banister brush layer on the acquisition head, histocytes in the cervix uteri and vagina of the patient are sampled, so that cross infection is avoided; shooting is performed through the micro camera on the acquisitionhead, so that the illness state of the cervix uteri and the vagina is convenient for the patient to know, the disease can be found out timely, and treating can be performed as soon as possible; and the cervix uteri and vagina histocyte sample acquisition device disclosed by the invention is simple in structure, safe and high-efficiency, convenient to operate and suitable for wide popularization.

The invention relates to a direct-injection type ultraviolet vertical sterilizing device, comprising a main body (1) with an inner cavity, a water inlet (2) is arranged at the bottom of the main body (1), and a water outlet (3) is arranged on the upper part of the main body (1); the upper end opening of the inner cavity is provided with a waterproof division board (4), the inner cavity is also vertically provided with one or more ultraviolet sterilizing lamp tubes (5), and the upper end of each ultraviolet sterilizing lamp tube (5) is arranged on the waterproof division board (4). Compared with a conventional ultraviolet sterilizing device, the direct-injection type ultraviolet vertical sterilizing device has the advantages of long sterilizing process, little ultraviolet light-wave attenuation, high energy saving efficiency, low cost, easy maintenance and cleaning, and the like.

The invention discloses a toilet cover device which is capable of automatically sterilizing, disinfecting and removing peculiar smell, comprising a toilet cover and a toilet seat, wherein, the toilet seat comprises an upper blanking plate, an ultraviolet sterilization device and a lower base plate; the ultraviolet sterilization device is fixedly arranged in a cavity which is encircled by the upper blanking plate and the lower base plate; the upper blanking plate and the lower base plate are manufactured by adopting acrylic materials; the ultraviolet sterilization device is fixedly arranged on the inner side of the toilet cover; a protection cover is arranged outside the toilet cover, and the ultraviolet sterilization device is manufactured by adopting acrylic materials. The invention further comprises an anion deodorization device, a photocatalyst net, an adsorption filter and a small-sized ultraviolet lamp, which are all arranged in a power supply box; the power supply box is arranged at the rear side of the toilet cover device and is internally provided with an exhaust fan; an air inlet of the toilet is arranged at a side toward the inside of the toilet and an air outlet is arranged at the outer side. The ultraviolet sterilization device, an anion generation device, a ventilation device, the optical photocatalyst net and the adsorption filter are adopted to kill the bacteria in the toilet and remove the peculiar smell of the toilet, therefore, the invention is clean and environment-friendly and can effectively avoid cross infection of diseases.

The invention provides a preparation method of a new antigen-presenting cell applied to cell therapy. According to the preparation method, a human peripheral blood mononuclear cell is utilized to be treated in vitro to have a stronger antigen presenting function, and inducing specific T cell proliferation is performed after antigen load is performed in vitro. The method not only is simple and convenient, but also can obtain a lot of antigen presenting cells. The obtained antigen presenting cells can load antigen and activate specific T cell proliferation and have the advantages of obvious antigen presenting effect, slight rejection reaction when being applied to treatment, high safety and no obvious toxin or side effect.

The invention provides an antibacterial protective film and a preparation method and use thereof. The antibacterial protective film comprises the following components: 5 to 90 g/L of a composite ion antibacterial material, 5 to 90 g/L of a film former, 5 to 90 g/L of a thickener, 5 to 90 g/L of a moisturizer, 1 to 5 g/L of nanosilver, 1 to 10 g/L of a plant extractant, 1 to 10 g/L of a preservative, 1 to 10 g/L of a solubilizer, 1-10g / L of a cooling agent and balanced of water. The antibacterial protective film can be sprayed on human skin surface (especially hand and facial skin) to form aprotective film, is well fitted with human skin, has a continuous antibacterial sterilization effect while maintaining a good moisturizing effect, and has a strong bactericidal effect against methicillin-resistant Staphylococcus aureus (super bacteria representative bacteria), E. coli, Legionella, pyogenic cocci, hepatitis virus, and Candida albicans, as well as various epidemic infectious diseases and bacterial spores and the like.

The invention discloses a system for cleaning tooth by employing laser and a method thereof. The system comprises a laser device, a tooth cleaning head, a computer control module and a spectrum analyzer; a control terminal of the laser device is connected with a first control output terminal of the computer control module, the first input terminal of the tooth cleaning head is connected with the output terminal of the laser device, a second input terminal of the tooth cleaning head is connected with a second control output terminal of the computer control module, an input output control terminal of the tooth cleaning head is connected with a first input output control terminal of the computer control module, and the input output control terminal of the spectrum analyzer is connected with the second input output control terminal of the computer control module. The laser cleaning tooth system is controlled by a computer, the spectrum analyzer and a sensing module are used for analyzing and positioning the light, manual operation of the tooth cleaning head can rapidly and effectively clean the tooth, and the cleaning effect is good.

The present invention provides a local environment adjusting method comprising steps of: isolating the environment required to be adjust into relatively independent space; connecting the relatively independent space to an air conditioner air outlet by an air duct; feeding the air through moisture control and sterilization into the space. Apparatus for implementing the method comprises a close construction for isolating the environment required to be adjust into relatively independent space; an air conditioner for desired processing of the air inputted into the isolated environment; a connection duct. the invention can be used for environmental adjustment of house hold bed or diagnosis and treat bed for medical health care to improve sleeping quality. The invention has characters of low energy consumption, high efficiency factor.

The invention relates to a sterilization-type medical ultrasonic coupling agent and a preparation method thereof. The sterilization-type medical ultrasonic coupling agent comprises, by mass, 0.3-1% of carbomer 940, 3-10% of glycerin, 3-7% of propylene glycol, 0.3-1% of triethanolamine, 0.02-0.07% of triclosan, 0.02-0.07% of Kathon and 80-90% of deionized water. Kathon as an anticorrosive antibacterial agent is used according to a certain ratio and in preparation, a material mixing order is adjusted and a material temperature and a stirring rate are strictly controlled so that the technical problems of easy caking and more bubbles in production are solved. The sterilization-type medical ultrasonic coupling agent has good biocompatibility, no cytotoxicity to skin, no sensitization, no irritation and good sterilization and bacteriostasis effects, prevents human body cross infection, is safe and effective, has no peculiar smell and can be removed easily.

The invention discloses a method for cleaning a chip. The method includes the steps of using a single chip computer platform to conduct cleaning, and when cleaning, using ozone to conduct cleaning firstly, wherein the ozone has an oxidation effect and can further oxidize a contaminant or the film layer of the surface of the chip, subsequently, when an SC1 cleaning solution is used to clean, attachments can be cleared away more easily, the cleaning effect is better, and the yield of products is improved. In addition, according to the cleaning mode of the single chip computer platform, only one single chip is cleaned at one time, which can avoid cross infection. Moreover, the method for cleaning the chip reduces the use of chemicals and reduces the cost of chip cleaning.

A straight-type indwelling needle comprises an indwelling needle base and an indwelling needle hose. The lower portion of a cavity of the indwelling needle base is provided with a sealing plug made of soft elastic medical materials. The cavity of the indwelling needle is internally provided with a hard hollow liquid guiding rod which can penetrate through the sealing plug in an insertion mode, stretches into the bottom of the cavity of the indwelling needle base and is made of medical materials. The upper portion of the hard hollow liquid guiding rod is communicated with an externally-connected infusion device. According to the straight-type indwelling needle, due to the fact that the structure that the sealing plug is combined with the liquid guiding rod is ingeniously adopted, the sealing plug can be utilized for reliably sealing and isolating the indwelling needle hose and the bottom of the cavity of the indwelling needle base, it is ensured that the phenomenon that blood backflows to the exterior of the cavity of the indwelling needle base is avoided after a puncture needle is pulled out when puncturing is completed, cross infection of a medical worker and a patient is eliminated, the medical worker can pull out the puncture needle with one hand, labor intensity of the medical worker is reduced, and pressing pain and damage to blood vessels of the patient are relieved. The straight-type indwelling needle is simple and reliable in structure and high in practicability, and facilitates promotion and popularization.

The invention relates to a disposable electronic medical endoscope device comprising an operation control portion and a disposable service portion; the operation control portion is connected with the disposable service portion; the operation control portion includes an operation control portion shell, a bending drive control unit arranged in the operation control portion shell, and a bending drive unit; the disposable service portion includes an insertion control portion, an insertion hose portion and a pilot head portion that are connected in sequence; the insertion control portion is releasably connected with the operation control portion shell; the bending drive control unit controls the bending drive unit, the bending drive unit drives the insertion control portion, and the angle of the insertion hose portion and that of the pilot head portion are under control. The disposable electronic medical endoscope device has the advantages that the front end of the operation control portion and the rear end of the insertion control portion are provided with releasable connection means for connecting an operation portion and an insertion portion, the disposable service portion is removed and discarded after using and is replaced with a new disposable service portion, and disposability of an electronic medical endoscope is truly achieved.

The invention discloses a medical kit with classified medical instrument storage and disinfection functions. The medical kit comprises a medical kit body. The medical kit with the classified medical instrument storage and disinfection functions is simple in structure, a T-shaped clamping rod is pulled upwards manually, according to the number of placed medical instruments, a partition plate is pushed manually to the proper position, then, the T-shaped clamping rod is loosened, the T-shaped clamping rod and a limiting groove are clamped, and therefore the storage region of the medical kit bodyis partitioned according to practical situation so as to place various medical instruments, cross infection is avoided, then, a motor is used for driving a disc and a pressing rod to rotate, and the pressing rod intermittently pushes a T-shaped plate downwards, so that a second magnet moves downwards to spray out a disinfectant inside a liquid spraying box through a hose; when the second magnet moves downwards and repels from a third magnet, the third magnet moves downwards, a first pull rope and a second pull rope are pulled at the same time, the first pull rope can pull the hose, the spraying range of the disinfectant is enlarged, and therefore the effect of multifunctional use of the medical kit body is achieved.

The invention discloses a haemorrhoids loop ligature device. The haemorrhoids loop ligature device comprises a main system, a loop ligature operation system and a vacuum aspiration operation system. The three systems are ingeniously combined to form the haemorrhoids loop ligature device, negative pressure meeting clinical needs can be generated without a negative pressure pump, the negative pressure value can be displayed, more functions are realized, and using is more convenient.

The invention relates to a reagent uniform mixing device which comprises a driving device and a reagent bottle. The driving device comprises a mounting mechanism and a transmission mechanism. The reagent bottle comprises a reagent body and a reagent bottle base mounted on the driving device. The reagent bottle base is used for loading the reagent bottle body; a through hole, through which the reagent bottle body is inserted, is formed in the reagent bottle base; and a transmission part is arranged on the reagent bottle body. The reagent bottle body is arranged on the transmission part of the reagent bottle body to rotate in the through hole driven by the transmission mechanism, and at the moment, a reagent in the reagent bottle body generates a turbulent flow under a rotating action, so that a purpose of mixing the reagent uniformly is achieved, and the risk of cross infection is avoided. The reagent uniform mixing device is high in uniform mixing efficiency, simple in structure and low in cost. A reagent uniform mixing technique is popularized and applied favorably. In addition, the invention also provides a regent uniform mixing method.

The invention discloses a breathing anesthesia machine for operation, comprising a base, wherein the left side of the top of the base is fixedly connected with a box body, the left side of the top ofthe box body inner cavity is fixedly connected with a disinfectant liquid box, the right side of the top of the box body inner cavity is fixedly connected with an air purifying machine, and the bottomof the box body inner cavity is fixedly connected with a first fan. Through arrangement of the disinfectant liquid tank, air purifying machine, first fan, three-way pipe, connecting pipe, ultrasonicatomizer, an anesthetic tube, a first hose and a first connection port, the effect of atomization of the anesthetic so as to provided convenience for patients to breathe anesthesia is achieved. The first connection port and the second connection port are arranged so as to facilitate disassembly and discarding after use and avoid cross infection to the patient. The exhaust gas pipe, the casing, thesecond hose, the exhaust gas purifier, the second blower and the through hole are arranged so as to filter and remove the exhaust gas when the patient discharges the exhaust gas.

The invention discloses an anti-reflux remaining needle, comprising a remaining needle holder, a remaining flexible pipe, an extension pipe, an extension pipe seat and a liquid stopping clamp, wherein the liquid stopping clamp is arranged on the extension pipe; the extension pipe is connected between the extension pipe seat and the remaining needle holder; the extension pipe is a multi-cavity catheter which comprises at least two channels. According to the anti-reflux remaining needle, the structure of a multi-channel extension pipe is tactfully used, not only is the situation that a medical liquid dripping channel cannot be blocked in the infusion process sufficiently guaranteed, and the dripping speed and smoothness of medical liquid are guaranteed, but also a micro gap can be formed in the joint position between the outer wall and each separate inner wall of the extension pipe due to the fact that the multi-channel extension pipe is clamped through the liquid stopping clamp after the infusion operation is finished and paused every time, so that a microporous channel is formed by the micro gap between the extension pipe and the bottom part of the chamber of the remaining needle holder; a positive pressure chamber is formed through the upper part of the extension pipe and the extension pipe seat, therefore the blood reflux can be effectively and reliably prevented through slow penetration of the medical liquid, stored in the positive pressure chamber, via the microporous channel, and an anti-thrombotic purpose is achieved.

The invention relates to a stirring mechanism of an automatic human waste analyzer, aiming at solving the problem that cross pollution and air pollution can occur due to the fact that the general detecting instrument cannot stir a specimen in the sealing process, wherein the stirring mechanism comprises a specimen box which is arranged in an analyzer; the specimen box is provided with a cover body which is covered on the specimen box by sealed means; a sealed empty cavity is formed in the specimen box; a stirring rod is rotationally connected on the cover body; a rotary body which rotates under a magnetic force is arranged at the front end of the stirring rod; a magnetic rotating part is arranged in the analyzer; and the specimen box is arranged at the upper side of the magnetic rotating part. The stirring mechanism has the advantages that the specimen box is of a fully sealed structure, and the human waste specimen in the specimen box is stirred by driving the stirring rod to rotate through the magnetic force. The cross pollution caused by sealed detection of the human waste specimen wall is avoided, so that the analyzer cannot be discarded in case of pollution, which not only protects the analyzer and saves the cost but also protects the operator from being polluted.

The invention discloses a robot, a COVID-19 detection method thereof and a computer readable storage medium, the robot is equipped with a temperature monitoring module, a communication module and a main control module. The COVID-19 detection method comprises the following steps: collecting a real-time picture of a user through the temperature monitoring module carried on the robot; analyzing the real-time picture to obtain the real-time body temperature of the user; judging whether the real-time body temperature of the user is higher than a preset temperature threshold; if yes, uploading the real-time picture of the user to a monitoring platform through the communication module on the robot so that a worker can conduct follow-up processing. According to the scheme, the robot capable of achieving COVID-19 detection is provided, flow of workers and detected personnel can be effectively reduced, and personnel gathering and cross infection are avoided.

The invention relates to an integrated solution type dehumidifying air-conditioning device comprising a heat pump system, a regenerator, a dehumidifying device, a liquid storage box, a solution pump and corresponding pipelines, wherein the heat pump system comprising a compressor, a water cooling condenser, an air cooling condenser, a reversing valve and a evaporator, and the upper part of the liquid storage box is provided with an automatic water feeding device. The integrated solution type dehumidifying air-conditioning device is characterized in that the central part of the liquid storage box is provided with a cylindrical body with an open bottom; the cylindrical body is internally provided with the compressor and the reversing valve; the bottom of the cylindrical body is internally provided with the air cooling condenser; the regenerator sleeved with the water cooled condenser at the periphery is arranged above the cylindrical body, and the dehumidifying device with a wet curtain is arranged above the regenerator; and the solution pump is arranged in solution in the liquid storage box and is respectively communicated with liquid distribution devices at the upper parts of the water cooling condenser and the dehumidifying device by liquid feeding pipes so that the solution pump and the liquid distribution devices are integrated as a whole. The invention solves the defects that the split air-conditioner can not sterilize, humidify and the like, is energy-saving and environment-friendly, has no noise or externally-discharged condensing water like an outdoor machine, and can be directly used in such places as homes, offices, hospitals and the like.

The invention discloses a polyhexamethylene guanidine spray and a preparation method thereof, and relates to the technical field of medicaments. The formula of the polyhexamethylene guanidine spray is as follows: 0.1-5% of polyhexamethylene guanidine hydrochloride, 1% of synergist, 2% of azone, 0.1% of propylene glycol, 0.05% of water-soluble vitamin E and 91.85-96.75% of purified water. A preparation process for the polyhexamethylene guanidine spray comprises the following steps: step 1, sequentially adding polyhexamethylen guanidine hydrochloride and the synergist in the purified water in the ratio, and stirring for 10-20 minutes; step 2, after uniformly stirring, adding azone and stirring for 3-8 minutes until azone is completely dissolved; step 3, adding water-soluble vitamin E, stirring to dissolve, and then adding propylene glycol, and then stirring for 20-40 minutes to obtain the polyhexamethylene guanidine spray. The polyhexamethylene guanidine spray is fast to become effective, non-irritant, convenient to use, infection-preventive, simple in preparation process, and low in cost.

The invention belongs to the field of anesthesia medical treatment instruments, and provides a multifunctional anesthesia respirator which comprises an operating table, an instrument table, a sliding table, a base and a breathing circuit. The operating table and the instrument table can be slidably connected with the sliding table respectively through pulleys arranged on the lower sides of the operating table and the instrument table and a sliding rail arranged on the upper side of the sliding table, the sliding table is connected with the base through a lifting rod on the lower side of the sliding table, the breathing circuit is mounted on the left side of the operating table, a medical disinfection cabinet is arranged in the front side of the base, and a disinfection cabinet door can automatically open and close and is arranged on the front side of the disinfection cabinet. The multifunctional anesthesia respirator can solve the problems of low accuracy, complicacy in operation, single function and the like of an existing multifunctional anesthesia respirator.

The invention discloses a jujube healthy nutritional pet feed which comprises the following components: animal protein, plant protein, carbohydrate, fat, edible cellulose, antioxidant, preservative and jujube. The jujube healthy nutritional pet feed of the invention has the advantages that (1) nutrition: jujube contains protein, fat, sugar, cellulose; multiple amino acids, calcium, phosphorus, iron, potassium, sodium, magnesium, chlorine, iodine, carotene, thiamine, riboflavin, niacin; vitamin C, vitamin P and vitamin E, etc., which can enhance the ability of pets to resist against diseases and causes hair color of pets to be bright and soft; (2) enhancement of non-specific immune performance: antibiotics can be saved or reduced to be used in the feed, which can avoid the disadvantages caused by antibiotics such as cross infection to animal and people caused by drug resistance of pathogenic microorganism; (3) stress resistance performance: the pet feed of the invention can reduce the stress reaction of pets.

A diagnosis test tube of vacuum consists of gold labeling diagnosis test paper, test paper frame, quantitative liquid collection tube, liquid absorption fiber dryer, vacuum test tube and sealing film of vacuum test tube for finalizing vacuum blood-taking in once operation under completely closed condition.

The invention relates to a wireless stethoscope for preventing cross-contact. The wireless stethoscope comprises a sensor, an amplifying circuit, a filter, a signal output device and an auscultation head with a wireless transmitter, every two of which are in communication linkage in sequence. The wireless stethoscope further comprises a 2.4 G wireless earpiece which is in wireless communication adaptation with the wireless transmitter (7) of the auscultation head. Since the individual parts of the 2.4 G wireless stethoscope are in a wireless connection, a doctor can work without the limitation of the length of the sound guide tube of the stethoscope. Besides, the auscultation head is given to a patient and one hospital bed is provided with one auscultation head, so that a doctor can use the auscultation head at the head of the hospital bed of the individual patient when performing auscultation on different patients, thereby preventing cross-contact. Therefore, the wireless stethoscope not only maintains the advantages of the electronic stethoscope but also protects the patients and the doctor.

The invention discloses an operating room purification air-conditioning system. An operating room comprises a clean corridor, an operating room buffer room, an operating room main chamber and a tidy corridor. The clean corridor, the operating room buffer room, the operating room main chamber and the tidy corridor are internally provided with independent fresh air supply outlets and return air circulation machine sets. The fresh air supply outlets are connected with a fresh air supply machine set, and the fresh air supply machine set comprises a three-level filtering device for filtering fresh air and a fresh air air-conditioning unit for performing cold wet treatment on the fresh air. Every return air circulation machine set comprises a three-level filtering device for filtering return air, a return air air-conditioning unit for performing cold wet treatment on return air and a secondary heating device for performing heating treatment on the return air. The purification air-conditioning system is designed by analyzing summer air-conditioning heat and humidity load composition of the operating room, and not only is energy consumption of the operating room reduced remarkably, but also air quality of the operating room is improved remarkably.