58results about How to "Avoid long work" patented technology

A bone cement mixing and delivery system is provided in which separate components of bone cement are mixed together in a mixer to form a bone cement mixture. The mixer includes a mixing paddle and a mixing shaft connected to the mixing paddle. A motor operatively engages the mixing shaft to rotate the mixing shaft and the mixing paddle to mix the components in a mixing chamber. The motor also operatively engages a transfer mechanism. After a predetermined mixing period has elapsed, the motor automatically actuates the transfer mechanism to transfer the mixture to a delivery device. The mixture is then delivered to a target site, such as a vertebral body of a patient or other anatomical site.

A paintball gun comprises: a body defining a gas storage chamber for connection to a source of pressurized gas, a breech into which paintballs can be loaded, and a hammer chamber; a bolt slidable in the breech and having a bolt inlet port; a hammer slidable in the hammer chamber and connected to the bolt; and a poppet valve comprising a valve body defining a valve inlet connected to the storage chamber, a valve outlet connected to the breech, and a blow back port connecting the inlet to the hammer chamber, and a valve member slidable in the valve body and movable between an open position, in which it allows gas to flow from the storage chamber through the valve inlet to the valve outlet, and a closed position in which it closes the valve, and a pair of magnets arranged to bias the poppet towards the closed position.

A short (60-70 mm) endonasal speculum for performing operations within and around the sellar region of the human head includes two side members each of which is composed of a handle and an elongated blade. The handles are attached to each other by a hinge and one of the handles includes a variable dilation control that is used to open the speculum. The elongated blades are arcuate in cross section and have distal ends that are opposed to each other in a trapezoidal configuration, either up or down, which permits greater visualization and access into the regions above and below the sella and greater instrument maneuverability within the speculum.

The invention discloses an automatic image acquiring magnetic particle flaw detector for train axles. The automatic image acquiring magnetic particle flaw detector for the train axles comprises a darkroom, wherein a hanger support and a magnetic particle flaw detector body is arranged in the darkroom. The magnetic particle flaw detector body comprises a magnetic suspension spraying mechanism, an open-close type electromagnetic coil, a linear guide rail, a workpiece clamp, a rotation driving mechanism and a linear driving mechanism, wherein the open-close type electromagnetic coil is installed on a sliding block, the workpiece clamp is used for clamping the workpiece which is sleeved in the open-close type electromagnetic coil when flaws are detected, the rotation driving mechanism is used for driving the workpiece to rotate, the linear driving mechanism is used for driving the open-close type electromagnetic coil to move along the linear guide rail, image acquiring mechanisms arranged in a straight line is installed on the hanger support, and two parallel ultraviolet light illuminating lines are symmetrically arranged on the two sides of the straight line. The automatic image acquiring magnetic particle flaw detector for the train axles can facilitate the judge on whether flaws exist on the workpiece or not of an operator outside the range of the darkroom, and avoids the long-term work of the operator under an environment with ultraviolet rays.

The invention discloses a fluid-driven impactor, a power transmission mechanism for the impactor and the use of the impactor. In the prior art, the working life of the impactor is short, since a rubber primary seal and an upper fluid-diverging lid for the fluid-driven impactor are both liable to erosion and the efficiency in transmitting power is low due to the complexity of the power transmission mechanism. In order to increase the drilling speed and / or extend the life of the impactor, the side cavity passage is formed in such a way that the inner wall of the outer pipe is isolated from the side cavity passage in a watertight manner without the use of the rubber primary seal. The loss in transmitting power is minimized by integrating the anvil of the power transmission mechanism and the lower joint. The problem of abrasion of the fluid-diverging hole is overcome and the nozzle can be used with different fluid flow by mounting a replaceable nozzle in the upper fluid-diverging lid, the nozzle selected from a series of nozzles with various inner diameters and made of a material more wearable than the material for diverging lid the upper fluid.