3results about How to "Improve centrifugal effect" patented technology

The invention discloses a sampler for cfDNA detection, and relates to the technical field of medical auxiliary appliances, the sampler comprises a machine body and a centrifugal rod arranged on the machine body, the machine body is provided with a rotating motor used for rotating the centrifugal rod, the sampler further comprises a fixing ring fixedly connected to the side wall of the centrifugal rod, the peripheral side of the fixing ring is hinged with a plurality of connecting plates, and the connecting plates are connected with the rotating motor. The side, away from the fixing ring, of each connecting plate is connected with a containing plate used for containing test tubes, and the centrifugal rod is provided with an adjusting mechanism used for adjusting the inclined state of the test tubes during centrifugation. According to the sampler for cfDNA detection, through the arrangement of the adjusting mechanism, under the matching action of the first driving assembly and the pushing assembly, the positions of the test tubes are automatically inclined under the action of centrifugal force, so that the centrifugal force of the tail ends of the test tubes is conveniently utilized, and the centrifugal effect on blood in the test tubes is improved.

The utility model provides a cyclone separator. The cyclone separator comprises a cylinder body, a gas inlet pipe, a gas outlet pipe and a gas strengthening assembly, the cylinder is provided with a top cover and a bottom cover. An air inlet is formed in the side face of the cylinder. The gas inlet pipe is communicated with the gas inlet, the radial direction of the gas inlet pipe is perpendicular to the radial direction of the cylinder, and the gas inlet pipe is used for introducing gas into the cylinder; a first pipe opening of the air outlet pipe is formed in the barrel, a second pipe opening of the air outlet pipe penetrates out of the barrel from the bottom cover and is used for being connected with a vacuum pump, and a gap is formed between the first pipe opening and the top cover; the gas strengthening assembly is arranged in the barrel and used for strengthening the rotation momentum of gas moving from the gas inlet to the first pipe opening. The cyclone separator has a high dust grabbing rate, the particulate matter discharge amount is reduced conveniently, and the influence on the environment and follow-up processes is reduced. Meanwhile, when the cyclone separator is used as pretreatment equipment, the load of subsequent equipment can be reduced, and the service life of the cyclone separator is prolonged.

The utility model belongs to the technical field of plastic blood bag, concretely is a kind of plastic blood bag of inverted centrifugation, including blood bag body, the top of blood bag body is successively equipped with hose and butterfly type interface from left to right, the middle part of blood bag body outer side wall is provided with adjusting mechanism, adjusting mechanism includes the first extrusion plate of blood bag body front end surface and the second extrusion plate of blood bag body rear end surface, the left and right ends of first extrusion plate front end surface are all provided with through hole, the inside rotation of through hole is connected with clamping plate, the upper and lower two end surfaces of clamping plate are all equipped with multiple limit plates of symmetrical distribution, improve the centrifugal effect to blood when blood bag body is inverted and centrifuged, so that the blood distribution in blood bag body is more uniform.