2701 results about "Cross infection" patented technology

The invention discloses a butt joint type operation patient transfer trolley and belongs to the technical field of medical apparatus. The butt joint type operation patient transfer trolley comprises a transverse moving bed and a transfer trolley. The transverse moving bed with a tiltable bed top is disposed on a transfer trolley plate of the transfer trolley and locked by a bed locking device. The transfer trolley comprises a transfer trolley body, a transfer trolley base and a lifting device. The transfer trolley body is supported on the transfer trolley base through the lifting device. The transverse moving bed mainly comprises a transverse moving bed frame, a bed board, an air cushion and rollers. Inflation of the air cushion enables the bed board to tilt. By the butt joint technology, an operation patient along with the moving bed is transferred from the transfer trolley outside an operating room to the transfer trolley in the operating room, cross infection is avoided, operating environments are kept clean, and operating safety is increased. By the moving bed with the tiltable bed top, the patient can be transferred from the operation patient transfer trolley to an operating table conveniently and time- and labor-savingly. The butt joint type operation patient transfer trolley is suitable for transferring seriously-injured patients from ambulances to operating rooms of hospitals.

The invention discloses a cell sorter micro-fluidic chip based on the immunomagnetic separation technology and application thereof in the aspect of enrichment of rare cells, belonging to the technicalfield of micro-fluidic chips. The micro-fluidic chip, improved on the basis of the existing Y-type micro-fluidic chip, comprises a substrate and a cover-slip, wherein a Y-shaped micro-channel, a sample cell (1) and a buffer cell (2) respectively located at two end points of the upper part of the Y-shaped micro-channel, and an effluent cell (3) located at the end point of the lower part of the Y-shaped micro-channel are arranged on the substrate; and an antigen / antibody immunological reaction chamber (4) located on the micro-channel between the cross point (5) of the Y-shaped micro-channel andthe effluent cell (3) is further arranged on the substrate, wherein the width of the antigen / antibody immunological reaction chamber (4) is 2 to 5 times that of the micro-channel. The chip of the invention can effectively and rapidly fix the magnetic beads, increase the sample size of cells, improve the analysis flux, reduce the dead volume of sample introduction and reduce the retention and cross infection.

A multi-channel loading device comprises a beam, a plurality of sampler injector fixing rods are arranged on the beam, a sample placing pad is arranged below the beam, each sampler fixing rod is provided with a sampler comprising a sampling pin which is hollow and arranged vertically, the lower part of each sampling pin is intercalated with a suction end, each sampling pin is arranged on an injection pump base and connected with an injection pipeline in the injection pump base, each injection pipeline is respectively provided with a pressure sensor used for measuring the pressure in each injection pipeline, the upper part of each injection pump is provided with a push-and-pull rod inserted into a solution cavity vertically, the top of each push-and-pull rod is connected with a leadscrew nut which is rotationally mounted on a leadscrew vertically. The invention aims at providing the multi-channel sampling device with high accuracy and good stability of solution suction and separation, strong adaptability and capacity in reducing and avoiding cross infection among samples.

A mask assembly (30) is provided with a filter assembly (48) to filter gas exhaled by a patient during the administration of ventilatory therapy, e.g. CPAP or bi-level treatment, to reduce or eliminate the possibility of cross-infection to other patients or the physician in a clinical setting.

The invention discloses a department triage system based on diagnostic element analysis, belonging to the field of medical information processing and network application. The department triage system comprises a logic calling management and service interface, a suspected disease reasoning module, a department reasoning module, a knowledge node positioning module, a knowledge node association module, a user guide module and the like. According to the symptoms provided by a user, diseases associated with the symptoms are searched in a predetermined disease database and ranked from high to low according to relevancy or suspecting probability; and visiting department analysis is conducted according to the suspected disease selected by the user. The triage and distribution pressure of hospitals is effectively relieved, people are prevented from seeing a doctor blindly, especially, patients suffering from infectious diseases are prevented from seeing a doctor blindly and staying at public area, pathophoresis and cross infection are avoided; and the public are enabled to clearly know which department to go to under the condition of preliminarily knowing about the probability of falling ill, and the informatization degree of triage consultation operation is improved.

The invention provides an intelligent medicine purchasing system based on a remote medical system and medical advice compliance monitoring. The system comprises a remote medical subsystem, a management subsystem linked with a medical unit information platform, and a medicine shopping guide service subsystem linked with a service information platform of a medicine sales network. With the adoption of the intelligent medicine purchasing system provided by the invention, a specific marketing channel is established for the medicine sales network, and a new business model and a new service model are synchronously developed; a patient can implement the follow-up visiting process and medicine purchasing process without going to a hospital and a drugstore, therefore, the medical visits can be reduced, the cost of medical visits is decreased, the probability of cross infection of a patient can be reduced, the efficiency and accuracy of medicine purchasing service can be improved, convenience is brought to medicine sales and the patient, and the burden on the patient can be decreased.

The invention relates to a sealed inner barrel, which comprises integrally connected side wall (11) and bottom (12). The side wall (11) and the bottom (12) are arranged in a sealed way, a water drainage groove (13) is arranged at the top of the side wall (11), and water flow in an inner barrel (1) and water in laundry are all discharged to the outside of the inner barrel (1) via the water drainage groove (13). The invention also relates to a washing machine using the sealed inner barrel, and a washing method of the washing machine. With the hole-free design of the inner barrel, no washing water is required to enter the region between the inner barrel and an outer barrel, and therefore, washing water is substantially saved. At the same time, the dirt and bacteria in the region between the inner barrel and the outer barrel come into no water flow contact with clothes in the inner barrel, thereby effectively avoiding cross infection of bacteria, so the washing machine is sanitary, environment-friendly and safe in use.

The purpose of this invention is absolute elimination of medical cross-infection by endoscopy. It offers an endoscope system with a disposal sheath. The disposal sheath via anterior end cap connects the capsule which covers the outside of the endoscope and the disposal channel which sheathe in the endoscope channel and the fluid-air channel, and all these parts are joined together in a whole body. After the disposal channel is passed through the endoscope channel, its posterior disposal channel can be blocked into the elastic sealing cap via the guide tube, the posterior disposal channel's orifice need to be heated and melted and cut up simultaneously and its cut edge is in shape of V-shape by using one kind of heat fusion forceps after the use and before the retracting from the endoscope channel. A fluid-air exit and a sucking channel adapter are set on the posterior endoscope, convenience to connect with the fluid-air channel and the three-way sealing cap, the fluid-air channel may be single cavity channel or double cavity channel or two single cavity channels join in one channel together at nearing jet channel site, the channel sizes may be cylinders, or flat sizes. Both the outer surface of the endoscope and the inner surface of the endoscope channel are protected from pollution by the disposal sheath, thus ensures patients to safely use the permanent endoscope.

The invention discloses a method for preserving nucleic acid amplification reagents at normal temperature. Partial nucleic acid amplification reagents or all reagents are converted to solid state through a solidifying process and preserved stably at normal temperature. The invention further discloses a closed nucleic acid chromatographic test paper detection kit preserved at normal temperature. The kit comprises a nucleic acid extraction reagent of a sampler, the nucleic acid amplification reagent preserved at normal temperature, a closed chromatographic test paper detection device and an innocent treatment method of nucleic acid amplification products. The closed chromatographic test paper detection device comprises immunochromatographic test paper and a closed detection device, wherein the immunochromatographic test paper is fixedly arranged in the closed detection device, and sample liquor detected cannot be contacted with external environment. In addition, the invention further discloses a method for nucleic acid detection by using the kit. According to the invention, the nucleic acid reagents can be conveyed and preserved at normal temperature and extracted simply and quickly, and the nucleic acid amplification products are hermetically, quickly and sensitively detected, so that cross infection is avoided.

The invention discloses an automatic filtration injector, which comprises an injector and a filtration injection needle, wherein the injection needle consists of a needle tube and needle holders; the needle tube is arranged at the front end of an upper needle holder; the back end of a lower needle holder is connected to the taper head of the injector; the front end of the lower needle seat is combined with the upper needle seat, so that a liquid suction inlet and an injection outlet are formed; a check valve is arranged on the lower needle holder, and is opened in the liquid suction direction of the liquid suction inlet and the injection direction of the injection outlet; and a filter is arranged at the liquid suction inlet. Filtration and injection processes are carried out automatically without replacing a needle head. The injector is simple in overall structure, convenient to operate, safe, reliable, low in cost and disposable, and the content of medicament impurities and the risk of cross infection can be lowered effectively.

The invention relates to a watch-type non-trauma optical acoustic blood sugar monitor. A display screen, a control button, a controller, a cell and a measurement box are arranged in watch-type casing, an acoustic insulating layer, a sound absorption pad, a semiconductor laser tube, a Fourier lens, a light-transparent protection film and a hollow multi-ring array sensor are packaged in the measurement box to form a integrated coaxial confocal structure. The watch-type casing is equipped with a watchband to be wore on wrist of detector, an optical acoustic excitation source and an optical path lens system generate focused laser beam which passes through the hollow multi-ring array sensor and radiates to blood vessel of wrist to realize optical acoustic blood sugar detection of continuous A-type dynamic focusing scan and provide optical acoustic blood sugar results of multiple sites along wrist depth direction. The monitor has advantages of having small structure and simple operation, realizing real-time monitoring of optical acoustic blood sugar, having no trauma when detecting, having no need of blood supply and test paper, and avoiding cross infection and environmental influence.

The invention discloses a washing machine which comprises a first washing unit, a second washing unit, a water inlet system and a drainage system. The second washing unit is located above the first washing unit. An upward clothes taking opening is formed in the second washing unit. The water inlet system is used for supplying water to the first washing unit and the second washing unit. The drainage system is used for discharging water out of the first washing unit and the second washing unit. The first washing unit and the second washing unit are used for washing clothes in a classified mode at the same time. Thus, the clothes are washed in the classified mode through the first washing unit and the second washing unit, clothes of adults can be washed through the first washing unit, underwear of females or clothes of infants can be washed through the second washing unit, and cross infection is avoided. Meanwhile, due to the washing mode, the advantage of saving energy is achieved, and small clothes do not need to be washed in an existing washing unit.

The invention relates to a medical ultrasonic coupling agent having the functions of disinfection and sterilization. The weight percentage of components are that: 2,4,4'-trichloro-2'-hydroxy-diphenyl ether 0.2-2 percent, glycerine 4-7 percent, crosslinking polyacrylic acid resin 0.6-1.5 percent, NaOH 0.8-1.2 percent and distilled water 89.0-94.0 percent. The preparation steps are that: step one, the 2,4,4'-trichloro-2'-hydroxy-diphenyl ether and the glycerine are weighed by weight percentage; the 2,4,4'-trichloro-2'-hydroxy-diphenyl ether is completely dissolved in the glycerine solution and then remained; step two, the crosslinking polyacrylic acid resin which is weighed by weight percentage is dissolved in the distilled water; the solution obtained in step one is stirred and provided with the solution obtained in step two, and then the distilled water is complemented and NaOH solution is added, thereby obtaining gel. The invention can disinfect and sterilize to an ultrasonic probe in the inspection process so as to reduce cross infection; the invention has simple preparation process and no environmental pollution.

The invention provides a method for controlling the password input based on eye-gaze tracking, specifically comprising the following steps of: (1) preprocessing face images and extracting eye characteristic parameters: detecting a face according to face structure characteristics, and extracting the eye characteristic parameters in a face area according with the face structure characteristics; (2)estimating the current fixation point position: realizing the estimation from the eye characteristic parameters to the current fixation point position by using double light source eye-gaze tracking based on similar triangles; and (3) controlling a password input operation according to the fixation point position: controlling the password input operation by utilizing a time threshold and sound feedback according to the fixation point position. The invention can effectively prevent user password from being stolen, avoids the cross infection among different individuals by residual bacterial virus on a keyboard because the password is not inputted through the keyboard and has the characteristics of simpleness, convenience and higher safety.

The invention relates to a disposable radial artery compression hemostat, which mainly comprises a screw rod, a pressure regulating board and a pressure board, wherein the center of the pressure regulating board is provided with a convex block which is cut with a screw hole in which the screw rod is screwed and connected; the pressure board is connected below the screw rod, and the periphery and the bottom part of the pressure board are coated outside with a thin film; an air bag is formed between the thin film and the pressure board; the bottom surface of the thin film is provided with a gauze cloth; the both ends of the pressure regulating board are provided with penetrating holes which are penetrated by fixed belts. The invention has the advantages that: the disposable radial artery compression hemostat with the structure combines the original spiral type with the air bag type, which can not only maintain the advantages of the two, but can also overcome the deficiencies of the two; the invention can be selected for use under different situations or be used together, so as to achieve a better hemostatic effect. Furthermore, the bottom surface of the thin film is directly provided with the gauze cloth which can not be used again after the usage, so the hemostat can not be used for the second time, and the disposable method can avoid the risk of cross infection which is caused by a plurality of uses.

The invention relates to a disposable urinary bladder sight glass sheath for solving the problem of cross infection during a medical inspection. The adopted technical proposal is as follows: the disposable urinary bladder sight glass sheath comprises a sheath tube, a sheath body, an instrument valve, a short bridge, a water inlet valve and a water outlet valve. The disposable urinary bladder sight glass sheath is characterized in that: a sight glass cavity and an instrument passage independent from each other are arranged in the sheath tube, a transparent window for closing the sight glass cavity is arranged on the front end of the sight glass cavity, the front end of the instrument passage is of an open type, and the front section of the instrument passage is bent and forms a certain angle with the front section of the sight glass cavity; the sight glass cavity and the instrument passage are connected with the sheath body, and the sight glass cavity is connected and communicated with the short bridge arranged in the sheath body; one end of the instrument valve is inserted into the sheath body, and the other end of the instrument valve is provided with a valve cap; the sheath body is provided with the water inlet valve and the water outlet valve; the water inlet valve, the water outlet valve and the instrument passage are communicated with the sheath body. The disposable urinary bladder sight glass sheath has an integrated structure with simple and convenient operation, economical efficiency, practicability and safety.

The invention provides a semi-contact under-oil continuous droplet sample applying and liquid adding method, which is suitable for sequentially operating a droplet array system. According to the method, the distance between the pointed end of a capillary tube sample applying needle and the lower surface of a micro-hole (or a generated droplet) is controlled accurately, and the affinity or interface tension interaction between the droplet and the surface (or the generated droplet) is utilized, so that rapid and reliable continuous droplet sample applying or continuous liquid adding is realized, and the problem of cross infection during sample applying is solved effectively. The method is suitable for biochemical analysis screening researches such as high-flux medicament screening, protein crystallization condition screening, enzyme kinetics research and drug toxicity determination.

The invention discloses a solid medical ultrasound coupling patch and a preparing method thereof. The solid medical ultrasound coupling patch is prepared from a sodium alginate polymer, carrageenan, xanthan gum, hydroxymethyl cellulose, propylene glycol, glycerol, a preservative and deionized water. The preparing method comprises the steps that the sodium alginate polymer, glycerol, pure water andthe like are taken according to the mass ratio, mixed, heated and stirred evenly, and the mixture is discharged after heat-preservation defoaming is carried out, and then forms products of various specifications and shapes through filling. The solid medical ultrasound coupling patch is convenient to use and has excellent sound conduction and isolation effects; when medical personnel are in contact with infectious patients, the functions of preventing the risk of cross infection in a hospital and protecting the medical personnel are achieved after separation. The solid medical ultrasound coupling patch serves as a coupling medium, is specially applied to black and white ultrasonic equipment, color Doppler ultrasound equipment and the fields of ultrasound focusing and ultrasound treatment,and is suitable for the superficial surface, soft tissue, muscle bones, milk glands and thyroid glands of the human body and other parts where a liquid gel medium is difficult to use in ultrasound application.

The invention relates to a chrysanthemum plug seedling medium, which comprises perlite and turf with the volume ratio being 2:3 to 3:1. The invention also relates to a method for chrysanthemum plug seedling by employing the medium. With the adoption of the medium or the method the survival rate of chrysanthemum seedling can be improved, the cross infection of diseases and insect pests can be reduced, and the cost of the chrysanthemum seedling is obviously lowered.

The invention discloses a purifying medical endoscope which comprises an endoscopic flexible main casing. An endoscope body is disposed inside the endoscopic flexible main casing. A suction tube serving as a plier channel tube and a water-gas tube are contained in the endoscopic flexible main casing and can be pulled out of the endoscopic flexible main casing after use. The suction tube serving as the plier channel tube and the water-gas tube penetrate out of the tail end of the endoscopic flexible main casing and are connected with a positive gas pump and a reverse gas pump respectively. The endoscope body comprising a CMOS (complementary metal oxide semiconductor) imaging lens component, an LED light source and a fiber light transmitting bundle is made into a fully closed waterproof structure. The suction tube serving as the plier channel tube and the water-gas tube are in separable independent structures, and accordingly the major defect that slender tube cavities of a suction tube serving as the plier channel tube and a water-gas tube of a traditional endoscope cannot be sterilized satisfactorily is overcome thoroughly, the endoscope turns into a virtually independent demountable disposable product, and the potential accident of cross infection in use of the clinical endoscope is eliminated thoroughly. The purifying medical endoscope has great significance.

The invention discloses an antifogging and disinfection-free portable endoscope for examining nose and throat. The handheld endoscope comprises an endoscope handle, an adjustable endoscope body and a disposal casing; the endoscope handle can be separated or combined with the endoscope body; the endoscope body with different radial angles can be replaced at any time according to the requirement; and the casing is disposable, so that the endoscope is free from being especially disinfected without the risk of cross infection and can be used at any time. Hot air current is led to the front end of the casing and sprayed to the outer surface of a glass sheet, and meanwhile, the surface temperature of the endoscope body is consistent with the temperature of human body by using the heat generated by an electrothermal film, so that the invention plays a role of eliminating a fog layer. The invention overcomes the defects that the traditional classical endoscope for nose and throat cannot be used under the condition of outpatient services, requires high-temperature disinfection and is easy to generate fog, can be used for doctors in otolaryngological departments to replace different radial angles for observing the pathological conditions of the inside of the nose and the throat part in the outpatient services at any time, and has the advantages of low cost, definite image as well as lightness, smallness and portability of the whole system.

The invention discloses a high-frequency minimally invasive surgery instrument for vascular melt closed cutting, which comprises a claw beam assembly with the diameter of 10-12mm / 5-8mm and a control grip assembly, wherein a fast plugging mechanism is arranged between the claw beam assembly and the control grip assembly; the claw beam assembly can be exchanged; the claw beam assembly comprises clamping forceps, a fork frame, a claw beam, a lock drum / conductive ring, a jaw steering thumb wheel, a clamping opening / closing drive mechanism, a cutter drive mechanism and a disposable control mechanism; and the control grip assembly comprises a grip housing, a clamping forceps control mechanism, a cutter control mechanism, a current / signal switch and conduction device, a claw beam assembly exchange / lock mechanism, and a cutting safety mechanism. The high-frequency minimally invasive surgery instrument has the beneficial effects that the disposable using method for exchanging the claw beam is adopted; the purposes of reducing the surgery cost and preventing a patient from being threatened by cross infection are achieved, and the high-frequency minimally invasive surgery instrument is positively significant for the development of the minimally invasive medical career in China.

The invention discloses a biochip spotting platform which relates to the preparation of a microarray biochip. The biochip spotting platform mainly utilizes a precision linear motor which can carry out the high-speed motion for constituting a three-dimensional distribution mechanical hand, and simultaneously comprises a spotting head with 1 to 48 spotting needles, a chip fixed platform, a sample box platform and a spotting needle cleaning and drying device are arranged on a working platform with the water bath cooling function, an electric control box and the distribution mechanical hand are operated under the control of software of a computer, thereby rapidly completing the spotting and finally forming the complete biochip. The spotting platform is characterized by compact structure, simple and convenient operation, high speed, efficiency and precision, less cross-infection and broad applicability, etc., thereby being very applicable to the scale production of the biochips and also being applicable to scientific research and applications.

The invention provides a way for correcting the imaging sequence of an echo plane. A plurality of echo signals are collected, the phase difference of the echo signals is calculated to correct the image data. Wherein, the phase difference goes through multi-order fitting, a fitting coefficient reflecting the cross-infection volume and frequency drift is worked out to carry out phase correction for the image data. The invention collects the EPI signals of two echoes to form two images, the info on time difference for collecting the two images is used to calculate the phase diagram reflecting the unevenness in the magnetic field, and the phase diagram is used to carry out deformation correction for the image. The invention takes full consideration of the influence from the uneven field during the calculation, basically corrects the displacement of the image, improves the accuracy for deformation correction in subsequent images without using additional sequence to get phase diagram, and saves scanning time.

The invention provides a urethral catheterization device and an abdominal pressure monitoring system. The urethral catheterization device comprises a catheter and a drainage bag used for collecting liquid in the catheter. A capillary tube to be connected to a pressure sensor is communicated with the catheter. A first control valve is disposed on the catheter and between the capillary tube and the drainage bag. A buffer sac is disposed on the capillary tube and close to the connection of the capillary tube with the catheter. The buffer sac disposed on the capillary tube effectively prevents urine in the catheter from being reversely sucked into the capillary tube, so that the urine is effectively prevented from flowing back to the sensor to disable the same, accuracy in urinary bladder pressure detected by the pressure sensor is guaranteed, pollution of the pressure sensor by the urine is also prevented and cross infection caused by the reuse of the sensor is avoided.

The invention discloses a lifting sling device, wherein the fabric of the sling is prepared from biodegradable nonwoven polymeric materials which comprise: a polylactic acid, a mixture consisting of the polylactic acid in a main proportion and a polyhydroxyalkanoate in a relatively small proportion; a mixture consisting of the polylactic acid in a main proportion and the polyhydroxyalkanoate and a polyadipate-polybutylene terephthalate in a relatively small proportion; a mixture consisting of the polylactic acid in a main proportion and the polyhydroxyalkanoate, the polyadipate-polybutylene terephthalate and a poly(butylene succinate) in a relatively small proportion; a mixture consisting of the polylactic acid in a main proportion and the polyadipate-polybutylene terephthalate and the poly(butylene succinate) in a relatively small proportion; or a mixture consisting of the polyadipate-polybutylene terephthalate and the poly(butylene succinate). According to the lifting sling device, not only a cross-infection caused by uses of different patients can be prevented, but also negative effects on the environment are not liable to occur after the device is discarded for the lifting sling device is biodegradable.