47results about How to "Long recovery time" patented technology

The invention relates to an adjustable growth valve for a spine, and belongs to the technical field of medical devices. The adjustable growth valve comprises a valve body, a fixed orthopedic bar, a movable orthopedic bar, a transmission shaft, a transmission gear and locking nails, wherein the valve body is arranged between the fixed orthopedic bar and the movable orthopedic bar; the transmission gear is arranged on the transmission shaft; a chamber I which is used for containing the transmission shaft and a chamber II which is used for containing the transmission gear are formed in the valve body, and the top end of the chamber I penetrates through the upper end surface of the valve body; a threaded hole I and a through hole are formed in the valve body, one end of the fixed orthopedic bar is connected with the threaded hole I, the hole wall of the through hole is communicated with the chamber II, one end of the movable orthopedic bar is arranged in the through hole in a penetrating way, the outer wall of the end, which is arranged in the through hole in the penetrating way, of the movable orthopedic bar is provided with sawteeth, and the sawteeth are meshed with the transmission gear; a threaded hole II is formed in the upper end surface of the valve body, the bottom part of the threaded hole II is communicated with the through hole, the locking nails are arranged in the threaded hole II, and the bottom parts of the locking nails and the sawteeth on the movable orthopedic bar are arranged in a clamping way. According to the adjustable growth valve for the spine, disclosed by the invention, the stretching adjustability is good, the stress during a stretching process is uniform, and the transmission is stable.

Disclosed is a humidity sensor including: a conductive material in which electric charges are charged; a charger which charges the electric charges in the conductive material; and a measurer which measures a change amount of the electric charges charged in the conductive material.

A single instrument head loading device for use in needlescopic surgery comprises a shaft having maneuverable structure on a proximal end for use in correctly positioning an instrument head at a distal end thereof through manipulation of at least one wire engaged to a distal end loader within which the instrument head is held by maneuvering the maneuverable structure at the proximal end, to which a proximal end of the at least one wire is attached, the at least one wire traversing the length of the shaft and the distal end loader being positioned in a suitable position allowing engagement of the instrument head under continuous direct visualization to a distal end of a cooperating shaft of a surgical instrument as well as allowing for disengagement of the instrument head back into the distal end loader under continuous direct visualization, the engagement and disengagement taking place within a body cavity.

The invention belongs to the field of biotechnology, and relates to a simple and effective long-term preservation method of Caenorhabditis elegans used in experiments. This method has the disadvantages of the traditional method for preservation experiments with Caenorhabditis elegans, and adopts a solid / liquid mixed medium to cultivate Caenorhabditis elegans to achieve the purpose of long-term (5-7 months) preservation of Caenorhabditis elegans. The outstanding advantages of the present invention are simple preservation operation, simple experimental method, short nematode recovery time and high survival rate.

The invention discloses an electrowetting drive waveform generation method based on equipower. The electrowetting drive waveform generation method is characterized in that: power is shown as a formula in the description, wherein in the formula, g1 (t) is a waveform function during the period from t0 to t1, g2 (t) is a waveform function during the period from t1 to t2, and V1 is constant positive voltage connected to a pixel electrode; when the same power is maintained, the driving voltage is gradually increased at a driving stage, namely the stage from t0 to t1, and a voltage difference reaches the maximum value at t1 moment; and the voltage difference is reduced to 0 at a recovery stage, namely the stage from t1 to t2. The invention further discloses an electrowetting drive waveform generation system based on equipower. The electrowetting drive waveform generation system comprises a single chip microcomputer, an operational amplifier and a DAC0832, wherein an output end of the single chip microcomputer is connected with an input end of the DAC0832, and an output end of the DAC0832 is connected with an input end of the operational amplifier. The electrowetting drive waveform generation method and the electrowetting drive waveform generation device reduce the effective power of the drive waveforms, prolong the service life of electrowetting devices, adopt the gradually-changing waveforms, prevent printing ink from dividing the process of movement, and are widely used in the field of electrowetting.