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45results about How to "Guaranteed accurate fixation" patented technology

Fixation device

This invention relates to a fixation device for immobilizing a head of a patient relative a treatment unit or medical device during treatment of the head. The fixation device is provided with an interface unit adapted to be fixated in relation to an adaptor unit for connection to the treatment unit, or to a frame for connection to the medical device. Furthermore, the fixation device is further provided with a sliding plate being slidable in relation to said interface unit in an xz-plane of a coordinate system. The system is a Cartesian coordinate system defined by three orthogonal axis having an x-axis extending in the medial-lateral direction of the patient, an y-axis extending in the anterior-posterior direction, and a z-axis extending in the cranial-caudal direction. The fixation device is further provided with a plate locking means for locking said sliding plate in relation to said interface unit, a bite-block for being inserted into a mouth of the patient, a linking means for linking said bite-block with said sliding plate, at least one pivot point arranged such that the bite-block is movable at least in a plane orthogonal to the xz-plane; and a link locking means for locking said at least one pivot point in a desired position in relation to said linking means so as to fixate the bite-block to the interface unit.
Owner:ELEKTA INSTRUMENT AB +1

Fixation device

This invention relates to a fixation device for immobilizing a head of a patient relative a treatment unit or medical device during treatment of the head. The fixation device is provided with an interface unit adapted to be fixated in relation to an adaptor unit for connection to the treatment unit, or to a frame for connection to the medical device. Furthermore, the fixation device is further provided with a sliding plate being slidable in relation to said interface unit in an xz-plane of a coordinate system. The system is a Cartesian coordinate system defined by three orthogonal axis having an x-axis extending in the medial-lateral direction of the patient, an y-axis extending in the anterior-posterior direction, and a z-axis extending in the cranial-caudal direction. The fixation device is further provided with a plate locking means for locking said sliding plate in relation to said interface unit, a bite-block for being inserted into a mouth of the patient, a linking means for linking said bite-block with said sliding plate, at least one pivot point arranged such that the bite-block is movable at least in a plane orthogonal to the xz-plane; and a link locking means for locking said at least one pivot point in a desired position in relation to said linking means so as to fixate the bite-block to the interface unit.
Owner:ELEKTA INSTRUMENT AB +1

Pelvis repairing instrument convenient to adjust

The invention discloses a pelvis repairing instrument convenient to adjust. The pelvis repairing instrument comprises a limiting rod, a slider is connected with the lower portion of the limiting rod,the lower portion of the slider is connected with a left shell, a toothed groove is connected with the lower portion of the left shell, and connection rods are arranged at the two ends of the toothedgroove respectively. Clamping buckles are arranged on the upper portion of the toothed groove, the lower portion of the left shell is provided with fixing teeth, a base is arranged on the lower portions of the fixing teeth, an air bag is installed on the upper portion of the base, and a right shell is arranged on one side of the air bag. In the pelvis repairing instrument, the position of the limiting rod is adjusted through the slider, and the connection rods move so as to drive the toothed groove to move, so that the toothed groove is separated from the fixing teeth; the toothed groove is fixed through the clamping buckles, so that it is achieved the left shell and the right shell move, the distances between the left and right shells and the air bag are adjusted, the hips are precisely fixed, and the repairing quality and effect are ensured. By means of the pelvis repairing instrument, it is easily and conveniently achieved that the hips of different sizes are fixed, and the repairing requirements of users are met.
Owner:徐州三源医药科技集团有限公司

Sealing method for gas-insulated all-closed combined electrical appliances

The invention relates to a sealing method for gas-insulated all-closed combined electrical appliances. The sealing method for gas-insulated all-closed combined electrical appliances comprises the following steps: first, a first connecting layer and a second connecting layer are fixed on the surface of a combined electrical appliance, and the gas leaking through the gas leakage hole in the combinedelectrical appliance can be discharged through a connecting channel so as to prevent high-speed gas flow from hindering the fixation of the two connecting layers on the surface of the combined electrical appliance; then, one end of a ventilator is extended in from a second through hole and fixed through a fixture, and the problem that the ventilator and the fixture cannot be fixed is avoided because the leaked gas can still be discharged through the ventilator; and after the ventilator is fixed, the gas leakage hole of the combined electrical appliance can be sealed by sealing the ventilatorthrough a sealing element, without exhausting the gas. The gas leakage hole of the combined electrical appliance can be repaired online, and the maintenance cycle is shortened. Moreover, there is no need to cut off the power system, and the loss caused by power failure is avoided.
Owner:SHENZHEN POWER SUPPLY BUREAU

Selection and layout method for base station construction

The invention discloses a selection and layout method for base station construction. The method comprises the following steps of S1, selection, wherein a section with gentle terrain is searched, a safe distance between the section and a surrounding building is reserved, the distance between adjacent base stations is determined, and it is ensured that the coverage area between the base stations isreasonable; S2, mounting, wherein a bottom plate is moved to a construction position by holding a rack, a grounding block is enabled to be in contact with the ground, and the bottom plate is stabilized at an original position by utilizing a hydraulic push rod in a leveling fixing mechanism; S3, pit digging, wherein the ground is dug out of ground pile pits through a drill bit in a pit digging andsoil taking mechanism, and soil generated by pit digging is discharged into a collecting cavity through a soil discharging channel; and S4, carrying, wherein a conveying belt in an automatic carryingmechanism can convey ground piles to a placement arc-shaped plate, and the ground piles are pushed into the ground pile pits through a positioning sleeve. A pile sinking hammerhead moves up and down repeatedly, the ground piles placed into the ground pile pits are hit into the ground, and the situation that the base station construction is unqualified due to the fact that subsequent base stationscannot be fixed due to instability of the ground piles is avoided.
Owner:山西信息规划设计院有限公司

Labor-saving cable take-up and pay-off device

InactiveCN113044680APrevent inertial rotationGuaranteed accurate fixationRatchetElectric machinery
The invention relates to the technical field of power equipment, and discloses a labor-saving cable take-up and pay-off device. The labor-saving cable take-up and pay-off device comprises a base; a left mounting seat and a right mounting seat are fixedly mounted on the upper surface of the base; a stop block is fixedly mounted in the left mounting seat; the lower surface of the stop block is fixedly connected with one end of a spring; the other end of the spring is fixedly connected with a pawl; the pawl is movably mounted in the position, located below the stop block, in the left mounting seat; an insertion hole is formed in the pawl; the insertion hole is clamped with a clamping rod; and the pawl is used in cooperation with a ratchet wheel. According to the labor-saving cable take-up and pay-off device, through the arrangement of a torsion spring, a motor drives a take-up barrel to conduct take-up operation; the take-up barrel rotates and enables the torsion spring to start to store energy; after the take-up barrel finishes take-up and a power source is disconnected, the torsion spring releases the accumulated energy, and the energy released by the torsion spring and the energy generated by inertia rotation of the take-up barrel counteract each other; and therefore, inertia rotation of the take-up barrel is prevented, and the cable end cannot be fixed.
Owner:尹纯标

Traffic signal lamp post convenient to assemble

The invention discloses a traffic signal lamp post convenient to assemble, and belongs to the technical field of traffic signal lamp posts. The lamp post comprises a lower lamp post. An upper lamp post is arranged at the top end of the lower lamp post. The top end of the outer wall of the lower lamp pole is sleeved with a fixed sleeve. The bottom end of the upper lamp pole is inserted into the topend of the inner cavity of the fixed sleeve. Moving grooves are formed in the outer walls of the left side and the right side of the lower lamp pole. A supporting spring is arranged at the bottom ofan inner cavity of the moving groove. A sliding block is arranged at the top end of the supporting spring. Inserting rods are arranged on the outer walls of the bottoms of the sides, away from each other, of the two fixing blocks. The connecting rod is inserted into the connecting groove, so that the upper lamp post and the lower lamp post are connected and aligned, manual supporting and aligningare not needed, and the working difficulty is reduced. Meanwhile, the supporting spring expands, the sliding block drives the fixing sleeve to ascend, the outer wall of the upper lamp post is wrapped,the upper lamp post and the lower lamp post are connected and fixed, and assembling by operators is facilitated.
Owner:江苏海通交通集团有限公司

A deep-sea deployment method of sinkers for buoys

The invention relates to a deep-sea laying method for a sinker used for a buoy. The laying method comprises preparation work and placing work after the preparation work is completed. The preparation work comprises the following steps: (1) determining a predetermined location of the sinker in a sea area of a water intake of a nuclear power plant; (2) thoroughly investigating temperature, salinity,sea currents and conditions of the sea area in the area of the predetermined location; (3) calculating a horizontal distance value between a sea surface placing point of the sinker and the seabed predetermined location of the sinker so as to determine the sea surface placing point of the sinker. The deep-sea laying method for the sinker used for the buoy is capable of determining the predeterminedlocation of the sinker by measuring on-site hydrological data, calculating a displacement value of the sinker after the sinker sinks into the water according to corresponding measurement parameters,and compensating and correcting the sea surface placing point of the sinker, thereby realizing the rapid and accurate placement of the sinker to the seabed predetermined location, supporting the accurate fixing of a buoy carrier, and reducing the occurrence of cold source security incidents at the water intake of the nuclear power plant.
Owner:SUZHOU NUCLEAR POWER RES INST +2

Shrinkage equipment with drying function for steel bar processing

The invention relates to contraction equipment with a drying function for steel bar machining. The contraction equipment comprises a punched bottom plate and first sliding grooves. First sliding wheels are arranged on the two sides of the upper end of the bottom plate, a drying box is placed at the upper ends of the first sliding wheels, a heat gathering plate is fixed to the bottom end inside thedrying box, first rotating shafts are mounted at the lower ends of the two sides of the drying box, connecting rods are inlaid at the ends, away from the central line of the drying box, of the firstrotating shafts, and the ends, close to the central line of the drying box, of the upper ends of the connecting rods are connected with second rotating shafts. The contraction equipment has the beneficial effects that heat emitted by the upper end inside the drying box can be gathered by the heat gathering plate at the lower end inside the drying box and reflected back, and the heat is gathered inthe middle of the inner side of the drying box, so that steel bars inside the drying box fully make contact with the heat, the drying efficiency of the steel bars can be improved, the heat loss can be further prevented, the heat generated in the drying box can be utilized maximally, and the flexibility of the contraction equipment is embodied.
Owner:南京六六创业科技有限公司

A space x-ray shielding device for pulsar navigation

ActiveCN104835544BAvoid damageFacilitate the adjustment of the center of mass positionNavigation by astronomical meansShieldingX-ray shieldCerium
The invention provides a space x-ray shielding device used for pulsar navigation. According to the invention, the device is placed with multilayer nested truncated-cone-shaped tantalum rings in a main body structure, and the wall thickness of the main body structure gradually uniformly thickens from one end close to an external optical lens to the other end close to an external detector; thus, shielding of x-rays entering from a non visual field direction can be realized; the x-rays generated by secondary excitation due to penetration of space high-energy x-rays are prevented; damage of background noise to the detector is reduced; adjustment of the barycenter position of the shielding device is facilitated; and requirements on satellite attitude and orbit control are reduced. The space x-ray shielding device used for pulsar navigation provided by the invention uses an aluminum-alloy-prepared main body structure to support the whole shielding device; a lead layer plated on the outer wall of the shielding device is used to absorb incident high-energy x-rays from periphery; and a lead-antimony-cerium alloy layer plated on the inner wall of the shielding device can improve absorption rate of secondarily-excited x-rays. The device has simple realization principle and good shielding effect and is suitable for a pulsar navigation system to shield x-rays.
Owner:BEIJING INST OF CONTROL ENG
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