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334results about How to "Tight adhesion" patented technology

Protecting, fixing and retracting integration device of an acoustic emission deep hole monitoring sensor

The invention discloses a protecting, fixing and retracting integration device of an acoustic emission deep hole monitoring sensor. The device consists of a sensor protecting sleeve, a fixing device of the sensor protecting sleeve, a guider, a mounting rod, a directional ring and a rotary disc. The front end of the sensor protecting sleeve is connected with the fixing device of the sensor protecting sleeve by counterclockwise screws. The tail part of the sensor protecting sleeve is connected with the guider by clockwise screws, and is connected with the mounting rod through a pin and a unidirectional clamping groove. The directional ring is fixed at the front end of the mounting rod. The rotary disc is mounted on the tail part of the mounting rod. During retracting, the rotary disc facilitates the mounting rod to screw the sensor protecting sleeve off the fixing device of the sensor protecting sleeve. The device can better overcome the defects of insufficient protection, simple mounting angle and large absence or deflection of the monitored data due to untight coupling of the sensor and the rock existing in the traditional sensor, solves the problem of difficult retracting of the sensor in deep hole mounting, can be widely applied to rock engineering of tunnels, underground chambers, mine underground stopes, roadways and the like, and has great economical benefit.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Medical scaffold with inner coating film, and preparation method for medical scaffold

InactiveCN102430157ALittle elasticityEliminate defects with high embolism rateStentsCoatingsFiberMedical equipment
The invention relates to medical equipment, particularly a medical scaffold with an inner coating film, and a preparation method for the medical scaffold, and belongs to the field of medical equipment. In the medical scaffold with the inner coating film, a non-woven inner coating film of which fibers are distributed on the axial direction of the medical scaffold is prepared on the inner surface of an inner film by an electrospinning method by taking a coating film scaffold as a basis, wherein the coating film scaffold consists of a netlike scaffold which is formed by weaving medical alloy wires, an electrospinning non-woven inner film and an electrospinning non-woven outer film; and the thickness of the inner coating film is 2 to 6 mu m. During preparation of the medical scaffold with the inner coating film, the inner coating film, the inner film and the outer film are prepared sequentially, and the inner coating film in the medical scaffold improves the biocompatibility with tract tissues of a human body, facilitates adhesion, migration and reproduction of endothelial cells at two ends of the medical scaffold, promotes quick endothelialization of the medical scaffold, and prevents the medical scaffold from becoming narrow again. The preparation method for the medical scaffold is simple, convenient to operate, and low in cost, and suitable for preparation of medical scaffolds with different diameters and lengths.
Owner:WUHAN TEXTILE UNIV
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