2813 results about "Angular displacement" patented technology

A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end working unit mounted on a distal end of a joint shaft, which extends from the coupler and is operatively connected to the rotor by a wire, an encoder for detecting an angular displacement of the motor, and a controller for reading a signal from the encoder and comparing the read signal with an operation command value for energizing the motor through a feedback loop. The controller outputs a signal having a level greater than the resolution of the encoder and a lower operation limit of the motor within a range in which the distal-end working unit remains still, and monitors the angular displacement of the motor for thereby determining whether the feedback loop is malfunctioning or not.

A hinged socket wrench speed handle having an offset shank (20) with a first end (22) and a second end (24). Attached to the first end (22) is a clevis (28) which receives a 180-degree drive head that is held by a hinge pin (40). The drive head consists of either a square drive head (30) or a ratchet drive head (31). To the second end (24) is attached a handle (58), which rotates the wrench. A second embodiment of the hinged socket wrench includes a second clevis (28) that is added to the second end (24) of the offset shank. The second clevis (28) adds further combinations of angular displacement of the handle (58). Thus increasing the value of the wrench as a tool and also its utility in difficult work areas. The wrench consists of five hinge pin (40) variations which provide additional surface interface with both the hinge pin and the handle yoke, thereby improving the structural integrity and prolonging the tool's life.

A hinged socket wrench having an offset shank (20) with a first end (22) and a second end (24). Attached to the first end (22) is a clevis (28) which receives a 180-degree drive head held by a hinge pin (40). The drive head consists of either a square drive head (30) or a ratchet drive head (31). To the second end is attached a rotatable handle (58), which rotates the wrench upon reciprocation of the handle (58). A second embodiment of the hinged socket wrench includes a second clevis (28) that is added to the second end (24) of the offset shank. The second clevis (28) adds further combinations of angular displacement of the handle (58). Thus, increasing the value of the wrench as a tool and also its productivenss in difficult work areas. Five configurations of the hinge pin (40) provide additional surface interface with both the hinge pin and the handle yoke improving the structural integrity and prolonging tool life.

A biopsy guidance device is enclosed based on a tactile imaging probe adapted to accept a biopsy gun. The tactile imaging probe includes a pressure sensing surface providing real-time 2-D images of the underlying tissue structures allowing to detect a lesion. A cannula is provided supported at a center point by a ball and socket joint. The joint is equipped with linear and angular sensors and supports the cannula with the ability to rotate thereof about the center point. The position, linear and angular displacement and direction of the needle tip of a biopsy needle placed inside the cannula is therefore known at all times and provided as a feedback signal to a physician. Also provided to a physician is a position of the target site at a lesion, as well as a linear and angular deviation of the needle tip away from the target site. Such audio, light, or visual feedback allows the physician to correct the insertion angle and depth to confidently reach the target site to perform a biopsy. Method is also disclosed to guide the biopsy procedure.

A pavement joint 101, 102 disposed between two contiguous pavement slabs 103, 104 and 105 incorporating a shear key (12, 13, 22 and 23) and at least one hinge (37, 38, 39 and 40). The shear key and the at least one hinge are operative when at least one of the slabs is subjected to out-of-plane action P with the shear key transferring shear between the slabs, and the at least one hinge accommodating angular displacement of the slabs relative to the joint axis in at least one direction. In one form, a joint member 10, 20, 40, 50 and 60 is disposed between the slabs to provide the shear key and hinge. A joint member and pavement slab for use in the joint is also described.

The selection and output of a signal, such as an alphanumeric character, is provided depending upon the orientation of a device, such as a mobile telephone. In particular, a neutral position of a device is determined in relation to at least a first axis, the device including at least a first control associated with a first plurality of output signals, and an angular displacement of the device is measured about at least the first axis. A selection of the first control is also received, and one of the first plurality of output signals is output based at least upon the selection and the angular displacement.

A motion assistance device has a biological signal detection means for detecting a biological signal from the wearer of the device; a motion assistance device installation member having a drive source for applying torque acting to the wearer by use of each joint of the wearer as a rotating shaft; a control means for controlling the drive source to generate torque corresponding to the biological signal detected by the biological signal detection mean; a drive torque estimation means for estimating the drive torque generated by the drive source; a joint angle detection means for detecting angular displacement of a joint; and a parameter identification means for substituting the drive torque estimated by the drive torque estimation means and the angular displacement detected by the joint angle detection means into an equation of motion to specify the wearer-specific dynamics parameter, the equation relating to the entire system and including wearer-specific dynamics parameter. The control means controls the drive source according to a predetermined control method, based on the equation of motion into which the dynamics parameter identified by the parameter identification means is substituted.

A data logger for a monitoring sports which includes an accelerometer, a gyro sensor to sense angular displacement, a GPS unit to sense position and velocity, a magnetometer to sense direction of movement, a heart rate monitor, and a controller programmed to manipulate the data and provide a display of the heart rate, speed, and other sport parameters. The data can be stored or transmitted to a remote computer for use by the coach. The device is useful in football codes, athletics, swimming, snow sports and cycling.

A data logger for a monitoring sports which includes an accelerometer, a gyro sensor to sense angular displacement, a GPS unit to sense position and velocity, a magnetometer to sense direction of movement, a heart rate monitor, and a controller programmed to manipulate the data and provide a display of the heart rate, speed, and other sport parameters. The data can be stored or transmitted to a remote computer for use by the coach. The device is useful in football codes, athletics, swimming, snow sports and cycling.

The instant invention proposes an artificial intervertebral disc providing for angular displacements between adjacent vertebrae wherein these displacements are accommodated by internal shear in an elastomeric layered element residing between the upper and lower bases attached, respectively, to the upper and lower adjacent vertebrae, without sliding.

A medical device for installing sutures to close an incision in tissue or human skin is disclosed. The suturing device may provide first and second arcuate needles. Once properly positioned, the first and second arcuate needles are driven through the sub-dermal layer, or alternatively through a superficial surface, of two sections of skin to be joined. This is done in arcuate fashion and at identical and symmetrical rates of angular displacement. During the driving or retraction process of the first and second arcuate needles, a suture is positioned within both the first and second sections of skin and transformed from a planar or a multi-planar serpentine orientation to a helical orientation. The resulting suturing process is thus much faster than conventional or manual suturing and results in superior wound approximation / alignment that will lead to decreased scarring compared to prior art devices.

A camera mountable arm includes a first segment, a second segment, and a third segment. The first segment includes a recess extending substantially along a length of the first segment, and is configured to detachably couple to a camera. The first segment is rotatably coupled to the second segment and the second segment is rotatably coupled to the third segment. The arm is operable in a plurality of positions, including: a folded position, where the first, second, and third segments are aligned to be mutually length-wise parallel such that the second segment is enclosed within the recess along the first segment, and the first and second segments are substantially flush with the third segment; and an outstretched position, where the first and second segments are separated by a first angular displacement and the second and third segments by a second angular displacement.

The invention discloses a device for detection of mechanical characteristics and diagnosis of faults of a high-voltage circuit breaker, and relates to a switch device in the technical field of electric power. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker comprises a power module, an AD conversion module, a USB / RS232 communication module, a computer, a signal processing module, a control module, a collection module and a USB / RS232 communication module. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker integrates a plurality of paths of collection signals which comprise a loop current of an energy storage motor of the high-voltage circuit breaker of a spring operating mechanism, a coil current of a switch-on releaser, a coil current of a switch-off releaser, vibration signals of the high-voltage breaker, and information content of the angular displacement and the speed of rotation of a main shaft, local information of the mechanical characteristic state of the high-voltage circuit breaker is obtained by collecting information content with different forms, analysis is carried out on the local information through the signal processing module of the device, and the local information is combined, superposed and deduced to generate judgment information of the mechanical characteristics of the high-voltage circuit breaker. The device for detection of the mechanical characteristics and diagnosis of the faults of the high-voltage circuit breaker is simple in structure, convenient to use and stable in monitoring.

A high gain, multi-beam lens antenna system for future fifth generation (5G) wireless networks. The lens antenna includes a spherical dielectric lens fed with a plurality of radiating antenna elements. The elements are arranged around the exterior surface of the lens at a fixed offset with a predetermined angular displacement between each element. The number of beams and crossover levels between adjacent beams are determined by the dielectric properties and electrical size of the lens. The spherical nature of the dielectric lens provides a focal surface allowing the elements to be rotated around the lens with no degradation in performance. The antenna system supports wideband and multiband operation with multiple polarizations making it ideal for future 5G wireless networks.

An end effector assembly is presented including a pair of first and second jaw members configured to move from a first position in spaced relation relative to one another to a second position for grasping tissue therebetween. The end effector assembly further includes an actuation mechanism configured to actuate the first and second jaw members relative to an elongated shaft attached to a flexible catheter having a longitudinal axis defined therethrough. Additionally, a spring mechanism is disposed between a supporting member and a distal most end of the elongated shaft, the spring mechanism configured to apply constant sealing pressure between the first and second jaw members irrespective of angular displacement of the elongated shaft.

A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end working unit mounted on a distal end of a joint shaft, which extends from the coupler and is operatively connected to the rotor by a wire, an encoder for detecting an angular displacement of the motor, and a controller for reading a signal from the encoder and comparing the read signal with an operation command value for energizing the motor through a feedback loop. The controller outputs a signal having a level greater than the resolution of the encoder and a lower operation limit of the motor within a range in which the distal-end working unit remains still, and monitors the angular displacement of the motor for thereby determining whether the feedback loop is malfunctioning or not.

A hinge or joint assembly includes a first member movably connected to a second member to allow angular displacement of the first member relative to the second member in each of extension and flexion (clockwise and counterclockwise) directions, where one elastomeric spring restrains angular displacement in a flexion position, and another elastomeric spring restrains angular displacement in an extension position. In each direction, the angular movement is dampened through compression of the respective elastomeric spring. After dampening the movement in either direction, returning movement is assisted through decompression of the respective elastomeric spring. Alternatively, one or more elastomeric springs are arranged to both dampen through compression and assist through decompression angular movement in each of the flexion and extension directions. The elastomeric spring can provide a pre-determined force deflection curve in compression and an independent rate of return hysteresis in decompression. The elastomeric springs could be urethane.

Apparatus for measuring surveying parameters, such as distances and angular displacements between an instrument survey station and a mobile survey station, with improved accuracy. The invention combines a differential satellite positioning system (DSATPS), available with positioning systems such as GPS and GLONASS, with electromagnetic measurements of distances and optically encoded angles by a conventional electro-optical survey instrument to provide survey measurements that can be accurate to within a few millimeters in favorable situations. The DSATPS relies upon pseudorange measurements or upon carrier phase measurements, after removal of certain phase integer ambiguities associated with carrier phase SATPS signals. The SATPS may be retrofitted within the housing of the conventional electro-optical instrument. In a first approach, a remote station provides DSATPS corrections for the mobile station and / or for the instrument station. In a second approach, the mobile station provides DSATPS corrections for itself and for the instrument station. In a third approach, the instrument station provides DSATPS corrections for itself and for the mobile station.

An industrial gripper includes a base plate, at least three finger units to be moved relative to the base plate, a supporting unit to support the finger units, a first drive unit coupled to the supporting unit to allow simultaneous angular displacement of the finger units toward an object, and a second drive unit coupled to the supporting unit to adjust orientation angles between the finger units. Each of the finger units includes an intermediation member to be moved in a first direction by the first drive unit, a grip member to grip the object by being moved in a second direction different from the first direction as a movement direction of the intermediation member, and a connection member to convert the first direction movement of the intermediation member into the second direction movement of the grip member.

An articulating platform (20) that is used to vary the longitudinal and lateral angular displacement of an exercise bicycle (22) mounted thereon. The platform includes a bicycle mounting base (24) configured to accept the footprint of a conventionally dimensioned exercise bicycle. The base (24) pivots in both a longitudinal axis and a lateral axis, thereby simulating uphill and downhill bicycle riding and turning when leaning sideways in a turning direction. The base (24) is preferably articulated by a D.C. motor drive system or optionally by a gear motor, pneumatic, hydraulic and worm drive systems each having controls for initiating directional articulation. A platform enclosure (40) supports the base and the drive system to provide a safety barrier for protecting moving components of the platform.

An intervertebral disc replacement has two members attached to vertebral body endplates of two adjacent vertebrae. The two members are formed with respective articulation surfaces which form at least part of an articulation arrangement. When loaded with compressive axial force, the articulation arrangement supports the vertebral contact surfaces against the compressive force to ensure a predefined minimum intervertebral spacing, and allows a range of turning motion in all directions. The articulation arrangement is formed to provide an increase in the intervertebral spacing as a smooth function of angular displacement from a neutral position over at least part of the range of motion in each direction for each direction of motion, thereby providing motion attenuation and restoring forces.

A computer input device, such as a mouse, is disclosed that includes one or more sensor systems for detecting translational displacement and angular displacement of the input device relative to a support surface. The input device transmits a signal to a computing device in response to detecting the translational displacement and angular displacement, and the computing device moves an image on a display screen in a linear manner in response to the signal. The sensor system within the input device may be an optical sensor system, for example.

A belt drive controller for controlling each belt stopping position with high accuracy during intermittent movement of a belt. This belt drive controller controls driving of a belt to intermittently move a belt wrapped around a plurality of supporting rollers including a driven roller and a drive roller. This controller detects a rotation angular displacement or a rotation angular velocity of two supporting rollers having mutually different diameters, and controls driving of the drive roller based on the detected rotation data so that the position of the belt in the direction of movement becomes a predetermined target position.

The invention discloses a robot reducer transmission performance comprehensive testing device. The robot reducer transmission performance comprehensive testing device comprises a base (14), wherein a drive motor (1), a first coupling (2), a reducer input end torque angular displacement sensor (3), a second coupling (4), a to-be-tested reducer (5), a third coupling (6), a reducer output end torque angular displacement sensor (7), a fourth coupling (8) and a brake (9) are arranged on the base (14), share the same axis on the level direction, and are connected in sequence, and the drive motor (1), the reducer input end torque angular displacement sensor (3), the to-be-tested reducer (5) and the reducer output end torque angular displacement sensor (7) are respectively arranged on the base (14) through a motor support (10), a first support (11), a to-be-tested reducer support (12) and a second support (13). The robot reducer transmission performance comprehensive testing device meets the requirements of transmission performance tests such as high precision composite roller movable teeth transmission reducer ratio, return difference and efficiency, and thus testing efficiency and testing accuracy are high.

A none-angular displacement parallel damping device mainly comprises a movable platform, a fixed platform, four branches and damper springs, wherein the branches are used for connecting the two platforms and are identical with one another in structure. One end of a first connecting rod in the branches is connected with the fixed platform through a first revolute pair, the other end of the first connecting rod is connected with one end of a second connecting rod through a second revolute pair, and the other end of the second connecting rod is connected with the movable platform through a cylindrical pair. The axis of the first revolute pair is parallel to that of the second revolute pair, and the axis of the second revolute pair is parallel to that of the cylindrical pair. The whole device is square. The four branches are symmetrically and evenly distributed. Four corners between the fixed platform and the movable platform are respectively and perpendicularly provided with one first damper spring, and the two sides of the cylindrical pair are respectively sleeved with one second damper spring. The none-angular displacement parallel damping device is simple in structure, small in occupied size, easy to process and high in cost-performance ratio, and has broad application prospect in many fields.

A stationary CT system comprising at least one annular x ray source assembly comprising a plurality of respective x ray sources spaced along the annular x ray source assembly. Each of the x ray sources comprises a respective stationary x ray target, an electron beam focusing chamber; an x ray channel; an electron beam source disposed in a spaced apart relationship with respect to the respective stationary x ray target; a vacuum chamber disposed in between the electron beam focusing chamber and an insulating chamber where the insulating chamber houses the electron beam source; a radiation window at a pre-defined angular displacement from the respective stationary x ray target and the x ray channel; and a target substrate attached to the respective stationary x ray target.

A spinal alignment system is disclosed that includes a rod and a plurality of uniplanar screw assemblies that include a screw, a cap, and a housing. The screw and cap are configured such that the relative angular displacement between the screw and the cap is limited to a first limit angle in a first plane and to a second limit angle in a second plane that is perpendicular to the first plane, the second limit angle being larger than the first limit angle. The housing is coupled to the cap and configured to maintain the cap in proximity with the head of the screw. The housing has two elongated elements forming a U-shaped saddle. The alignment system also includes a plurality of locking cap assemblies that capture the rod within the U-shaped saddle and are tightened to fixedly couple the rod to the respective uniplanar screw assemblies.