36results about How to "Controllable strength" patented technology

An extraction method for antioxidant polypeptide in Guangchang nymphaea alba is characterized by comprising the following steps of weighting a quantity of protein of Guangchang nymphaea alba for preparing water solution with substrate concentration of 3-6%, heating the solution rapidly to 80-85 DEG C after dissolution, and keeping the temperature for 10-15 minutes; after pretreatment, adding phosphate buffer so as to adjust the pH to 7.0-8.5, adding trypsin, wherein the enzymolysis temperature is 45-60 DEG C, and the enzyme use amount is 6-9% of substrate concentration, after 60-120 minutes of enzymolysis, rapidly heating enzymatic hydrolysate to 90 DEG C for 20 minutes for enzyme deactivation treatment; then rapidly cooling down to room temperature, carrying out centrifugation by 3000-4000r / min for 15-20 minutes, taking supernate, adding trypsin solution into wet macroreticular resin DA201-C according to the proportion of 100g:100-120ml, keeping in a constant temperature table for 180-240 minutes, wherein the temperature is 25 DEG C and the revolving speed is 150-200r / min, eluting sequentially with ethanol solution of 25%, 50%, 75% and 100% for 120-150 minutes, and collecting eluant for vacuum drying and concentration. The method is simple and is controllable, an HPLC-MS analysis result shows that polypeptide molecular weight focus between 1100-1900D, and the oxidation resistance is stronger than polypeptide obtained through microbial fermentation.

The invention provides equipment for automatically assembling a C-shaped fastening ring on a hollow shaft with a sheath. The equipment comprises a stander, a positioning jacking device, a material separating and blocking device, a material receiving device and a material pushing device, wherein the positioning jacking device comprises a jacking cylinder, an upper tip and a lower tip; the jacking cylinder is mounted on a top plate of the stander, and the lower end of the jacking cylinder is connected with the upper tip; the lower tip is mounted on the top surface of a base plate of the stander; the material separating and blocking device comprises a base, a C-shaped fastening ring feeding shaft, a material separating and shifting structure, a material blocking structure, a material separating cylinder and a material blocking cylinder; the base is mounted on the base plate; the C-shaped fastening ring feeding shaft, the material separating cylinder and the material blocking cylinder are fixedly arranged on the base; the material blocking structure is connected with the material blocking cylinder; the material separating and shifting structure is connected with the material separating cylinder; the material receiving device and the material pushing device are mounted on the base plate. The C-shaped fastening ring can be automatically assembled on the hollow shaft with the sheath; the assembling quality is high, and the labor intensity of a worker is reduced.

The invention provides a dielectric property test device, which comprises a base, a slide rail, a fixation wall, a press wall, a pair of rotation walls and a cover body. The base has a first detection surface. The slide rail is arranged on the first detection surface along the extension direction thereof. The fixation wall is fixedly arranged on the first detection surface, and the fixation wall has a second detection surface. The press wall has a third detection surface; and the press wall is slidably arranged on the slide rail and enables the third detection surface to be able to move facing to the second detection surface. Each rotation wall is rotatably arranged on the base; and each rotation wall has a fourth detection surface. Each fourth detection surface can rotate to a rotation position with each rotation wall. The two fourth detection surfaces in the detection positions are arranged face to face, and can form an accommodation space with the first detection surface, the second detection surface and the third detection surface. The cover body can seal the accommodation space, and the cover body has a fifth detection surface facing the accommodation space. The dielectric property test device also comprises a metal foil layer covering the first detection surface, the second detection surface, the third detection surface, the fourth detection surface and the fifth detection surface.

The invention discloses a fixing device for clinical examination and blood collection in the Department of Cardiology. As for the lift, a slide rail is fixed on the top plate of the scissor lift, and the slide rail is slidably provided with a slide block matched therewith. The present invention is suitable for movement and is easy to use. By stepping on the button on the third fixed plate, the bar-shaped airbag can be used to control the pulse of the patient's arm and replace the disposable blood collection pad. , reduce the pain of patients, and reduce the number of times users touch the shared equipment with both hands, and reduce the infection rate. Sterilization, the device can assist medical staff to complete blood collection with high efficiency and high quality, which is very practical and reliable.

The invention discloses a secondary line bending rod. The secondary line bending rod comprises a rod body and a bending arc-shaped plate connected to a tube hole of the rod body, wherein the bending arc-shaped plate can rotate around a connected end of the bending arc-shaped plate and the rod body by certain angle; and a slot body for placing a secondary line is further formed in the arc-shaped surface of the bending arc-shaped plate. Through the structure, the secondary line bending rod is used for bending a bent part into a circular-arc-shaped part, and is the same in force, so that the circular arc of each line is the same, and the occurrence of a condition of damaging the line by right-angled bending is further avoided, and therefore, the secondary line bending rod is really attractive, quick, convenient and practical.