13results about How to "Avoid secondary infection" patented technology

The application provides a catheterization device for irrigation administration, and relates to the field of medical devices, comprising a catheter and a liquid storage bag, the liquid storage bag is sleeved outside the catheter and is attached to the side wall of the catheter, a through hole connected to the inner cavity of the liquid storage bag is arranged on the side wall of the catheter, a blocking diaphragm capable of being broken under the action of a set pressure is arranged in the through hole, and a blocking piece is arranged in the inside of the catheter in the covering area of the liquid storage bag to block the catheter under the action of the pressure of the side wall of the catheter. In view of the problem that pollution is easily caused during the current bladder irrigation, the flushing liquid is pre-stored in the liquid storage bag, so that the liquid storage bag becomes a convenient flushing device. The flushing liquid is isolated from the outside world before flushing, so that pollution is avoided. When in use, the liquid storage bag is squeezed to make the flushing liquid pass through the through hole and be input along the catheter, so that the operation is convenient and secondary infection is avoided.

This invention discloses a swab sample preservation solution. The solution contains isosorbide dimethyl ether, sucrose fatty acid ester, and polyether NPE-108. This preservation solution is a swab sample preservation solution that can rapidly inactivate viruses and has good preservation effects. It can preserve viral nucleic acid for 16 days at room temperature (37°C) and for 60 days at 2–8°C, effectively protecting the nucleic acid from degradation without affecting subsequent nucleic acid extraction and detection, making it safe and effective. Furthermore, this preservation solution can rapidly inactivate the preserved virus sample in just 10 minutes, effectively preventing secondary infection of operators.

The invention discloses an oral mucositis prevention gargling device for a patient, and relates to the technical field of medical instruments, the oral mucositis prevention gargling device comprises a liquid storage unit composed of a first cylinder and a second cylinder; the liquid conveying pump is mounted at the inner bottom of the first cylinder body and is connected to the gargling spray head through a liquid conveying pipeline; wherein a sealing disc is arranged in the second cylinder body, and the sealing disc divides the interior of the second cylinder body into an upper functional chamber and a lower negative pressure chamber; the four-way pipe is mounted on a top plate of the second barrel; the negative pressure pump is mounted in the negative pressure cavity and connected to the first connector of the four-way pipe through a negative pressure pipeline; the partition plate is fixed to the top of the sealing disc and divides the functional cavity into a washing cavity on one side and a collecting cavity on the other side, through the designed backwashing device, backwashing can be conducted on a pipeline, accumulated impurities are removed, the pipeline is recovered to be smooth, the blocking risk is reduced, and the continuity of the treatment process is guaranteed.

The application provides an energy-saving beef processing device, and relates to the technical field of beef processing. The device comprises a rack, rollers installed at the left and right ends of the rack, a conveying belt installed on the outer side of the rollers, a position sensor fixedly installed at the upper end of the rack, a water storage shell fixedly installed in the rack, a stabilizing plate fixedly arranged on the outer side end face of the rack, a first supporting plate movably arranged on the outer side of the stabilizing plate, and a supporting rod fixedly arranged on the right side of the first supporting plate. The energy-saving beef processing device drives a lifting plate to complete the piercing and beating actions of beef by a single cylinder, and a pressing rod cooperates with a pushing plate to drive a beating frame to reciprocating beat. The beating structure does not need to be driven by an additional motor, and the beating energy consumption is reduced by simple extrusion protrusions. The beef fibers are loosened by beating, and brine is injected by multiple points of a needle, so that the uniformity of brine penetration is improved, the salting effect is better, and the problem of completing the processing steps after directly injecting brine by the needle is solved.

The utility model relates to the field of pressure bandage, especially cold compress analgesic type pressure bandage, including bandage main part, plastic buckle, frozen compress bag, zipper head, polytetrafluoroethylene antiseize layer and thermal barrier, the upper end of bandage main part is provided with the storage groove, the frozen compress bag is seted up in the storage groove, the utility model discloses through the switch of storage groove's zip fastener structure, can be convenient for user to store the frozen compress bag in it and carry out quick replacement, and polytetrafluoroethylene antiseize layer can effectively reduce the friction coefficient cooperation gel material's thermal barrier between its contact surface and patient's skin, can reduce the pain of patient when bandaging and disassembling bandage, and avoid patient frostbite, and the disposable replaceable polytetrafluoroethylene antiseize layer can avoid the secondary infection of patient's wound, and make the bandage reusable, solved the existing pressure bandage in the use process cold feeling dressing difficult to replace, and the comfort is not good, and the repeated use is easy to infect the problem.

The application belongs to the technical field of microorganisms, and discloses a method for inducing formation of living unculturable state bacteria in the presence of host cells and application thereof. The method is as follows: cells in the 3th to 20th generation are transferred to a well plate to obtain induced cells; bacteria in the logarithmic growth phase are washed by a buffer, and modified cell culture solution is resuspended to obtain a bacterial suspension. The bacterial suspension is added to the induced cells, and after incubation in a constant-temperature incubator for 1-5 hours, 10-500 mg / L gentamicin-containing modified cell culture solution is added. After cell treatment for 3-10 days, intracellular bacteria are collected by adding cell lysis solution, and then washed, centrifuged and resuspended to obtain living unculturable state bacteria. The application can induce bacteria to enter the living unculturable state in the presence of host cells, which not only expands the understanding of living unculturable state bacteria, but also provides theoretical and technical support for recurrent and chronic infectious diseases in clinical practice.

The invention relates to the technical field of nasal aspirators, in particular to a nasal aspirator and a nasal aspiration method thereof.The nasal aspirator comprises a nasal plug suction head unit and a negative pressure suction unit, the nasal plug suction head unit comprises a suction head body, and the suction head body is provided with a suction inlet used for being placed in the nasal cavity to suck nasal cavity secretions and an exhaust port used for being connected with the negative pressure suction unit. According to the nasal aspirator and the nasal aspiration method thereof, the suction force of the suction head body is adjusted through the negative pressure suction unit, the speed or force for sucking secretions in the nasal cavity is convenient to control, the discomfort in the nasal cavity is reduced, and compared with a mouth suction type nasal aspirator, the suction effect is better, and the infection risk can be reduced; by means of the structural design of the nasal plug suction head units, backflow of secretions in the nasal cavity can be effectively avoided, secondary infection caused by backflow is prevented, and discomfort caused by stimulation to the interior of the nasal cavity or the throat is reduced.

The application discloses a liquid dressing based on terpin-4-ol and paulownia extract as well as a preparation method and application thereof. The liquid dressing comprises the following raw material components in percentage by weight: terpin-4-ol 0.27%-1.1%, beta-cyclodextrin 0.27%-1.1%, paulownia extract 0.2%-0.5% and auxiliary materials 97.3%-99.3%, the mass ratio of terpin-4-ol to the paulownia extract is 0.5-4:1, the mass ratio of terpin-4-ol to beta-cyclodextrin is 1:0.8-1.2, terpin-4-ol and beta-cyclodextrin form a terpin-4-ol / beta-cyclodextrin inclusion compound, and the auxiliary materials comprise a film forming agent. The liquid dressing can kill bacteria around a wound, neutralize slight inflammatory reactions caused after the bacteria are killed, reduce redness, prevent secondary infection and ensure a healing process when the liquid dressing is used for wound healing.

The utility model relates to the technical field of medical bandages, and discloses a breathable antibacterial medical bandage which comprises a sealing edge, through holes are formed in the side wall faces of the sealing edge, a breathable layer is fixedly connected to an inner cavity of the sealing edge, a plurality of breathable holes are formed in the breathable layer, a quick-drying layer is bonded to the top wall face of the breathable layer, and the quick-drying layer is fixedly connected with the inner cavity of the sealing edge. The top of the quick-drying layer is fixedly connected with an activated carbon layer on one side, a dustproof layer is fixedly arranged on the top of the activated carbon layer, and the dustproof layer comprises carbon steel fiber strips arranged in the radial direction and ceramic fiber strips arranged in the weft direction. Air can circulate through the air holes, the quick-drying layer is arranged to be of a corrugated structure, air circulation is smoother, the healing effect of a wound is guaranteed, the carbon steel fiber strips and the ceramic fiber strips have the anti-static effect, static electricity cannot be generated, and dust cannot be adsorbed; meanwhile, the surface of the carbon steel and ceramic fiber mixed material is smooth, so that dust is difficult to remain on the surface, dust entering is reduced, and secondary infection is avoided.

The invention discloses a transport stretcher for mentally ill patients, comprising two groups of supports and a stretcher cloth, wherein the stretcher cloth is installed between the two groups of supports, handles are fixed at both ends of the supports, a groove is provided at one end of the handle away from the supports, a plurality of groups of limiting holes are provided on the supports, a baffle is partially hollowed out on the inner side of the supports, a movable rod is movably installed on the supports and the baffle, a pressing block is provided at one end of the movable rod, a limiting ring is provided at the middle position of the movable rod, a movable part is connected at one end of a second spring away from the limiting plate, the movable part is movably installed on a mounting frame, a strap is fixedly connected to the side of the connecting part, each group of stretchers needs to be disinfected after use, and the stretcher cloth can be removed from the two groups of supports to clean and disinfect the stretcher cloth, compared with directly disinfecting the entire stretcher, the device can be cleaned and disinfected more thoroughly after disassembly, bacteria and viruses on the stretcher are reduced, and secondary infection to other patients is avoided.

The utility model discloses a nipponia nippon restraint support, including nipponia nippon holding platform, restraint strap, lift adjustment mechanism and install universal wheel at the bottom of lift adjustment mechanism, nipponia nippon holding platform is connected with lift adjustment mechanism, nipponia nippon holding platform vertically slides and lifts based on lift adjustment mechanism, restraint strap is installed in nipponia nippon holding platform, and the universal wheel is installed in nipponia nippon holding platform. Leg placing spaces are formed between the fixing belts and the crested ibis containing platform, and the crested ibis fixing device is used for crested ibis of any body type, age and weight and covers treatment and recovery of all crested ibis problems.

The application relates to a drainage device for preventing urine backflow and a preparation method, and the drainage device comprises a drainage unit and a check unit; a first end of the drainage unit is located inside a lesion, a second end of the drainage unit is located outside the lesion, and the drainage unit is used for draining liquid in the lesion to the outside; the check unit is arranged inside the drainage unit and is used for preventing the liquid from flowing from the second end of the drainage unit to the first end of the drainage unit. The advantage lies in that the check unit can effectively prevent liquid backflow and avoid secondary infection of a patient.

The utility model provides a sputum collection device which comprises a sputum suction tube, a sputum suction tube, a sputum suction tube cover, a sputum suction tube cover, a sputum suction tube cover and a sputum suction tube cover cover, and one end of the sputum suction tube is a sputum suction tube head end which is used for being inserted into a respiratory tract system of a patient; the inlet end of the control valve is connected with the other end of the sputum suction tube, and the control valve is used for adjusting the flow area of the sputum suction channel; a cup body of the collecting cup is completely transparent and is marked with volume scales, and the inlet end of the collecting cup is connected with the outlet end of the control valve; the sputum suction tube, the control valve and the collection cup form an integrated structure; one end of the negative pressure extension tube is connected with the outlet end of the collecting cup; and the negative pressure air source joint is connected with the other end of the negative pressure extension pipe. The sputum suction device is simple in structure and convenient to operate, the sputum state and the sputum amount of a patient can be observed conveniently, and secondary infection caused by sputum suction operation can be effectively avoided.