7results 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 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.