97results about How to "Reduced risk of cross-contamination" patented technology

A method for suspending or re-suspending magnetically attractable particles is provided. Thereby at least a mixing vessel (10) is provided filled at least partially with a mixture (30) containing magnetically attractable particles (40) at least partially precipitated at the bottom (11) of the mixing vessel (10). An effective magnetic field acting at least in the front end area (3) of the mixing bar (1) is switched on by the magnetic field generating apparatus (4) while the mixing bar (1) is immersed in the mixture (30). Subsequently, the magnetic field is moved away from the bottom (11) of the mixing vessel (10) along with the mixing bar, whereby the movement of the magnetic field along with the mixing bar is carried out such that at least a part of the magnetically attractable particles (40) is raised from the bottom (11) of the mixing vessel (10) and the portion of the particles sticking to the bar is minimized. The magnetic field is switched off in a predefined distance from the bottom which is greater than the distance from the bottom at the time when the magnetic field is switched on. Thereafter, repeated mixing movements of the mixing bar (1) are carried out until the magnetically attractable particles present in the mixture (30) are sufficiently suspended or re-suspended whereby a magnetic field which is switched on does not exist at the front end (3) of the mixing bar (1).

The invention discloses a respiratory tract pathogen detecting kit. The kit is used on the basis of multiple PCR combining nucleic acid intrusion reaction and the nano-gold color developing principle. The kit comprises one or more of 6 primer probe combinations and can be used for detecting influenza A / avian influenza viruses (FluA), influenza B viruses (FluB), SARS coronaviruses, legionella pneumophila (LP), neisseria meningitidis (N. men) and adenoviruses (ADV). The kit has the advantages that the kit is high in specificity and sensitivity during respiratory tract pathogen detecting, expensive equipment is not needed, detecting results can be observed through naked eyes, and the kit can be applied at primary level.

The invention relates to oxaliplatin freeze-dried injection, which is characterized in that the invention is prepared by the method that aqueous solution is freeze-dried. The aqueous solution contains oxaliplatin, mannitol and citrate, wherein, the concentration of the oxaliplatin in the aqueous solution is 2.5 to 6.25 mg / ml; the concentration of the mannitol in the aqueous solution is 25 to 200 mg / ml; and the concentration of the citrate in the aqueous solution is 2 to 20 mg / ml. And sodium citrate can also be added into the aqueous solution so as to adjust the pH of the aqueous solution. Thepreparation processes are as following: the oxaliplatin is placed inside the container, 80 percent amount of water for injection is added, and then the water for injection is mixed so that the oxaliplatin can be dissolved and mixed evenly in the water for injection; after that, the mannitol and the citrate are added into the water for injection, and then the water for injection is mixed so that the mannitol and the citrate can be dissolved and mixed evenly in the water for injection; the content of the intermediate is measured; if the content of the intermediate is qualified, the volume of the water for injection is fixed to full amount; in the aseptic condition, the water for injection is filtered until to be clear by a microporous membrane of 0.22 microns; the filtered solution is filled into an aseptic silin bottle; part of the aseptic silin bottle is plugged with a butyl rubber closure; and then the aseptic silin bottle is filled in the tray to be sent into the freeze dryer to be freeze-dried; the mouth of the aseptic silin bottle is rolled; the quality of the filtered solution is inspected; and the aseptic silin bottle is packaged.

This method for processing a plurality of cell suspensions comprises at least the following steps: (a) loading a plurality of phials (4) onto a receiving plate (6), each phial (4) comprising a cell suspension to be analysed; (b) loading a plurality of intermediate containers (20) into a receptacle (18); (c) extracting, by virtue of pipetting means (24), a sample of a cell suspension from a phial (4) and depositing this sample in an intermediate container (20); and (e) taking a sample of a cell suspension from an intermediate container (20) and depositing this sample in an analysis container (32, 36); steps (c) and (e) being repeated for each phial (4) to be analysed. The method also comprises, between the extracting step (c) and the sample-taking step (e), a step (d) of cell treatment of the sample extracted, by virtue of cell treatment means, step (d) being repeated for each phial (4) to be treated. The invention also relates to an automated device implementing this method.