198results about How to "Unfixed" patented technology

The invention discloses a neuro-intervention head-neck fixing device. A head fixing plate can be movably installed on a supporting plate, a left splint is movably installed at the upper portion of the left side of the head fixing plate, a right splint is movably installed at the upper portion of the right side of the head fixing plate, a first tightening device and a second tightening device are both installed at the left side of the left splint in a front-back spaced mode, both the first tightening device and the second tightening device comprise shells, guide rods, slide rods, ratchet bars, and ratchets, a lifting device controls the slide rods to move up and down, the slide rods are slidably connected with slide blocks, the slide blocks are rotatably connected with connecting rods, the lower portions of manipulating rods are rotatably connected with the connecting rods, the ratchet bars are in slidably connected with the guide rods, the rackets are arranged at the lower portions of the slide blocks and are matched with the racket bars, the lower portions of the racket bars are fixedly connected with winch racks, the lower portions of the winch racks are meshed with winch gears, and shafts of the winch gears are provided with winches. The neuro-intervention head-neck fixing device is high in safety and reliability, the risk of occurrence of head dislocation of a patient in a neuro-interventio operation is drastically lowered, which is conducive to improvement of the curative effect of the operation.

The invention provides a cradle head. The cradle head can make three feet parts of the tripod appropriately become a vertically upward status when the cradle head body is mounted on the tripod. The cradle head (1) includes a cradle head body (3) mounted on the tripod; and a first operation body (6) projectedly arranged on the cradle head body (3). The cradle head (1) also has a second operation body (7) projectedly arranged on the cradle head body (3) and located at a position above the first operation body (6). In the cradle head (1), three feet parts of the tripod appropriately become vertically upward status when the cradle head body is mounted on the tripod.

The invention discloses an automatic switching power supply device for a power failure. The automatic switching power supply device comprises a mounting plate and a shell matched with the mounting plate; a main power supply and an emergency power supply are arranged on the mounting plate; and a switching mechanism is arranged between the main power supply and the emergency power supply. The automatic switching power supply device has the advantages that the movement of a permanent magnet and a moving rod is realized through magnetic adsorption between two electromagnets and the permanent magnet after the two electromagnets are electrified, when a fault appears in the main power supply, the permanent magnet and the moving rod are adsorbed through the magnetism of the electromagnets to movetowards the emergency power supply, and then the connection of an electrical contact and an electric contact end is completed, so that automatic switching from the main power supply to the emergency power supply is completed, the device is driven by magnetic force, the switching speed is high, high delay of a traditional pressing switch is avoided, the structure is stable, and the quality of electric energy is guaranteed.

The invention provides a tripod whose ground body can be easily converted. The tripod (1) has a leg (7) with a top portion (6) at the lower end, and a ground body (11) that can be switched between a grounded state and a non-grounded state is provided on the lower end side of the leg (7). , an elastic piece is arranged between the foot (7) and the ground body (11), after the ground body (11) overcomes the force of the elastic piece and moves downward relative to the foot (7), by making the ground body (11) With respect to the rotation of the legs (7), the landing body (11) is converted from the non-grounded state to the grounded state.

Disclosed are a light source device and a display device capable of preventing stress from occurring in, for example, connectors and a plurality of circuit boards connected by the connectors when the circuit boards are fixed to a supporting body using fasteners. Specifically disclosed is a light source device which comprises a plurality of circuit boards (2) each having light-emitting elements (1) that are mounted on a first surface (2a) thereof and being disposed so as to be remote from each other such that the surfaces thereof are parallel to each other, a supporting body (6) disposed on second surfaces of the plurality of circuit boards (2) so as to support the circuit boards, and connectors (5) electrically connecting two adjacent circuit boards (2). A plurality of insertion holes (2c, 2d) into which fasteners (8) for fixing the circuit boards (2) to the supporting body (6) are fitted are formed in each circuit board (2) so as to be remote from each other. The size of the insertion hole (2c) among the plurality of insertion holes (2c, 2d) is smaller than that of the insertion hole (2d).