518results about How to "Accurate angle" patented technology

Catheter control systems which facilitate the tracking of an angle of deflection of a catheter distal end can be used for any number of procedures where catheter orientation relative to the body is desirable, e.g., in transseptal access procedures where an accurate angle of puncture of the septal wall is desirable. Such control systems may comprise a steerable handle which is oriented relative to the catheter steerable section to provide for consistent catheter articulation upon corresponding manipulation of the steering ring. Another variation may utilize an orientation indicator to track the deflectable distal end. For instance, an orientation marker as visualized through an imaging hood on the distal end may correspond to identical orientation markers on the control handle such that articulation of a steering mechanism in a direction relative to the orientation markers deflects the catheter distal end in a corresponding direction relative to the visualized orientation markers.

The invention is mainly to provide a portable media-accessing device, which includes a body, an upper lid, and at least one pivotal part. The body has a hollow casing having an opening side communicating to a first accommodation space; the first opening side may provide a memory module to be placed into the first accommodation space; the upper lid has a hollow casing having a second opening side communicating to a second accommodation space; the pivotal part may make the body connected to the upper lid such that, by taking the pivotal part as an axial center, a rotation motion with an appropriate angle between the upper lid and the body is possible.

The invention discloses a graded positioning method for agricultural machinery navigation, comprising the following steps of acquiring a first positioning parameter, utilizing a Kalman filter to fuse the first positioning parameter, acquiring a second positioning parameter, acquiring a third positioning parameter, utilizing multi-sensor self-adaptive weighted fusion algorithm to fuse the second positioning parameter with the third positioning parameter, acquiring a target positioning parameter and positioning agricultural machinery according to the target positioning parameter. The invention also discloses a graded positioning system for agricultural machinery navigation. By fusing the positioning parameters acquired by measurement equipment for a plurality of times, the graded positioning method can smooth DGPS positioning data, effectively avoid the abnormal results of DGPS dynamic positioning, effectively filter test noise, reduce systematic error, form continuous, stable and accurate the information of the positions and course heading angles of agricultural machinery, and improve the positioning accuracy of agricultural machinery navigation.

The chair tilt alarm 10 comprises a power supply 12 in electrical communication with an on-off switch 14, a tilt sensor 16, and an warning device 18. The warning device 18 will be activated when the chair 20 is tilted beyond a predetermined angular position 22. As the chair returns toward its righted position, the alarm will deactivate. The chair tilt alarm 10 can be shut off manually or remotely. The chair tilt alarm (10) is also equipped with data storage and transmission modules for reporting of chair tilting at a base station. The chair tilt alarm (10) is also equipped with a counter-balance system to correct the chair to an acceptable position.

The invention discloses a blade grinding machine for an external conical surface of a drill, belonging to the technical field of advanced manufacturing system and numerical control machining. The blade grinding machine is controlled by employing a motor and a servo system; a main shaft block is driven by a first guiding device to move in the first direction, while a tool rest mounting base is driven by a second guiding device to move in the second direction; and then a tool rest is rotated by a tool rest driving motor and a main shaft is rotated by a main shaft driving motor, so that a four-dimensional numerical control technology of drill blade grinding is realized and the running of the blade grinding machine provided by the invention is very flexible; in addition, a human-machine operation interface of the blade grinding machine is visual so that the change in the drill blade grinding process can be directly observed; the machine is high in running speed and accurate in angle; any grinding angle of the drill can be adjusted; the difficulty in drill angle adjustment during processing is completely solved; and the blade ground surface of the drill after grinding is bright; therefore, the quality problem of short service life of the drill in the production process is effectively improved; the utilization rate of the drill is greatly brought into play; and the processing efficiency of a product is improved.

A multiplet jewelry product constructed of two or more layers of gemstone material affixed together with a transparent film disposed therebetween to form a composite unit. A translucent image is imprinted on the transparency film whereby refracted and reflected light is directed through the image imbedded within the gemstone product.

A display movable in two dimensions is disclosed, comprising a base having a track, a sliding member having a frame for supporting a display panel, a sliding bump disposed slidably in said track and on which said frame is connected pivotally and swings in a direction, and a pair of dampers disposed between the sliding member and the base. As such, a longitudinal position and a pitch angle of the display may be adjusted by moving the display in a longitudinal direction and swinging the display in a user's view direction.

A support for the head of a patient lying in a generally prone position. The support features a tray adapted for support on an underlying operating table surface. A plurality of pins projecting from an engagement with the tray are positioned to engage and suspend either a cushion directly or a cushion engaged in a casing. The pins may be adjusted to raise or lower the engaged cushion or casing. A mirror is also provided to view a patient's eyes through slots in the cushion and casing engaged over a patient's face.

A water control valve, which has one valve cartridge to control the temperature and flow rate of hot water, cold water or a mix of hot and cold water only through rotating motions, is disclosed. The valve cartridge (100) has a first fixed disk (120) to guide hot and cold water into the valve cartridge, a rotary disk (130) to control the flow rate of hot and cold water from the first fixed disk, thus controlling the temperature of water, a second fixed disk (140) to guide controlled water in the cartridge, a temperature control unit (170) to rotate the rotary disk during rotation of a temperature control lever, the moving unit (150) to linearly move toward or away from the second fixed disk, thus controlling the flow rate of discharged water, and a flow rate control unit (160) to cause linear movement of the moving unit by rotation.

The present invention proposes a technique capable of accurately grasping position and angle of a radiation generator at the time of image capturing. At the time of obtaining a plurality of transmission images by detecting radiation emitted from a emitting generator and passing through a specimen via a predetermined member (for example, a diaphragm) by a detector for a plurality of times while changing a relative position relation and a relative angle relation of the emitting generator to the detector, an outer-edge shape of a radiation area irradiated with the radiation on a detection surface of the detector from the emitting generator is recognized. On the basis of the outer-edge shape of the radiation area and an inner-edge shape of a predetermined member, the relative position relation and the relative angle relation of the emitting generator to the detector are obtained.

A support for the head of a patient lying in a generally prone position. The support features a tray adapted for support on an underlying operating table surface. A plurality of pins projecting from an engagement with the tray are positioned to engage and suspend either a cushion directly or a cushion engaged in a casing. The pins may be adjusted to raise or lower the engaged cushion or casing. A mirror is also provided to provide a reflective view a patient's eyes through slots in the cushion and casing engaged over a patient's face. A video camera may also concurrently be employed to capture electronic images of the patient's eyes and mouth through an aperture in the mirror.

Catheter control systems which facilitate the tracking of an angle of deflection of a catheter distal end can be used for any number of procedures where catheter orientation relative to the body is desirable, e.g., in transseptal access procedures where an accurate angle of puncture of the septal wall is desirable. Such control systems may comprise a steerable handle which is oriented relative to the catheter steerable section to provide for consistent catheter articulation upon corresponding manipulation of the steering ring. Another variation may utilize an orientation indicator to track the deflectable distal end. For instance, an orientation marker as visualized through an imaging hood on the distal end may correspond to identical orientation markers on the control handle such that articulation of a steering mechanism in a direction relative to the orientation markers deflects the catheter distal end in a corresponding direction relative to the visualized orientation markers.