171results about How to "Reduced range of motion" patented technology

The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

A delivery device for delivering fluidic media may include a second housing portion configured to be selectively engaged with and disengaged from a first housing portion adapted to be carried by a user, a drive device configured to be operatively engageable with a plunger arm connected to a plunger head arranged for movement in an axial direction of a reservoir supported by one of the first and second housing portion to drive fluidic media from the reservoir, a drive linkage for operatively engaging the drive device with the plunger arm for allowing the drive device to move the plunger arm, the drive device including a first gear engageable with the plunger arm and a second gear configured for lateral movement to allow the second gear to engage the plunger arm.

A system architecture for large concentrated solar power applications that increases heliostat utilization efficiency and land utilization efficiency is described. Embodiments of the invention include a large heliostat field in which are distributed a number of receiving locations, and wherein there is the assignment of heliostats to receiving locations is dynamic. Embodiments of the invention include dynamically targeting heliostats to receiving locations wherein the target determination process is performed frequently during operation and wherein such dynamic targeting can be utilized to various ends. Embodiments of the invention include configurations wherein cosine losses associated with heliostat pointing are significantly reduced, wherein heliostats may be closely packed without incurring substantial shadowing and blocking losses thereby significantly increasing land utilization, and wherein other benefits are realized.

A modular orthopedic hip prosthesis having three main components: a stem, a proximal body, and a neck. The components are removeably connectable and selectively adjustable. The neck is rotationally adjustable about the stem, and the proximal body is both rotationally and axially adjustable about the stem. A collet and locking member hold and lock the proximal body to the stem.

An exercise treadmill of the type having an endless moveable surface looped around rollers or pulleys to form an upper run and a lower run, the movable surface being rotated when one of the rollers or pulleys is rotated, an exercise surface on for walking or running while exercising, and a weight resistance means for simulating the dragging or pulling of a load, wherein the endless movable surface moves in a direction simulating walking or running backwards.

An exercise treadmill for simulating a dragging or pulling action, having an endless moveable surface looped around rollers or pulleys to form an upper run and a lower run, with an exercise surface for walking or running on while operating the treadmill; and a moment arm weight resistance means for simulating the dragging or pulling of a load.

A mechanism for positionally restraining a microplate is disclosed. The mechanism is defined by a base having at least one surface with a receptacle for the insertion of a microplate into the base. Supports and/or positioning structures on a surface of the base have point contacts to restrain movement of the microplate in a stable position for repeatable optical detection measurements. The supports and/or positioning structures permit insertion of the microplate for an initial measurement, removal of the microplate for analytical manipulation, and re-insertion of the microplate to an exact position so as to allow analysis of precise comparative measurements by an optical reader.

The invention discloses a car air conditioning system electronic expansion valve control method. Pre-adjustment value s0 of the valve opening of the electronic expansion valve is determined by the rotating speed of a compressor. Actual degree of superheat Tsh is calculated according to temperature and pressure of refrigerant of an outlet of an evaporator or an inlet of the compressor. The actual degree of superheat is compared with a presupposed interval of threshold values of the degree of superheat to obtain delta s. Control signals s of the adjustment valve opening are output to a controlling end of the electronic expansion valve after the pre-adjustment value of the valve opening is accumulated with valve opening adjustment increment. The car air conditioning system electronic expansion valve control method ensures that the valve opening of the electronic expansion valve arrives a condition according to default of the range of the threshold values of the degree of superheat to reduce adjustment ranges in a stage of adjustment of the degree of superheat, avoids frequent motions of the electronic expansion valve, prolongs service life of the electronic expansion valve, and further reduces system low-pressure pressure fluctuation, reduces energy consumption of the system and ensures normal and high-efficient operation of the system.

An exercise treadmill having an endless moveable surface looped around rollers or pulleys to form an upper run and a lower run, the movable surface being rotated when one of the rollers or pulleys is rotated, and an exercise surface for walking or running while exercising, a weight resistance mechanism for providing a weight resistance for simulating the dragging or pulling of a load, wherein the weight resistance can be adjusted and set to a specific weight resistance setting; a movable hand grip controller operatively attached to the weight resistance mechanism for operating and controlling the exercise treadmill and the weight resistance mechanism, wherein the endless movable surface moves in a direction simulating walking or running backwards, and wherein the weight resistance mechanism applies an approximately constant and static force to the hand grip controller generally only in the same as the direction the endless movable surface moves and opposite a pulling direction, whereby operation of the treadmill simulates the dragging or pulling of a load by a combination of the actuation of the weight resistance mechanism to simulate the load and the walking or running backwards to provide the dragging or pulling action.

An exercise treadmill having an endless moveable surface looped around rollers or pulleys to form an upper run and a lower run, the movable surface being rotated when one of the rollers or pulleys is rotated, and an exercise surface for walking or running while exercising, a weight resistance mechanism for providing a weight resistance for simulating the dragging or pulling of a load, wherein the weight resistance can be adjusted and set to a specific weight resistance setting; a movable hand controller operatively attached to the weight resistance mechanism for operating and controlling the exercise treadmill and the weight resistance mechanism, wherein the endless movable surface moves in a direction simulating walking or running backwards, and wherein the weight resistance mechanism applies a constant and static force to the hand controller generally only in the same as the direction the endless movable surface moves and opposite a pulling direction, whereby operation of the treadmill simulates the dragging or pulling of a load by a combination of the actuation of the weight resistance mechanism to simulate the load and the walking or running backwards to provide the dragging or pulling action.

A connector alignment system includes a base for mounting on a first substrate, and a housing movably engaged with the base. The housing secures an opto-electronic termination. The housing has longitudinal, lateral, transverse and angular ranges of motion with respect to the base. When the housing is in an unmated position, various combinations of the lateral, transverse and angular ranges of motion are less than the respective ranges of motion when the housing is in a mated position.

The invention discloses a translation and overturn drive device for a vehicle-mounted navigation system, which comprises a translation drive mechanism and an overturn mechanism, wherein the translation drive mechanism is a gear rack mechanism driven by a motor, is a drive source with constant ratio transmission, and is used for realizing the fore-and-aft translational motion of a base; and the overturn mechanism is a crank connecting rod mechanism, realizes the rotational motion of a crank by the driving power generated by the translation drive mechanism and the chute bind of the crank, and drives a display screen to roll over. Due to the method of the assembly driven by a set of single motor such as a gear rack mechanism, a connecting rod, a chute and the like, the device can translate and overturn the display screen. Due to the assembly method of the mechanism, the device realizes the single drive source and realizes the two-dimension drive. Compared with the two-dimension individual drive, a set of drive mechanism is omitted, and the assembled mechanism is good in mechanism rigidity and integrity, so that the movement range and the complexity of the mechanism can be reduced. Therefore, the device is small in occupancy space, simple in structure, low in cost, good in rigidity, and strong in practical applicability.

The invention discloses a light path device and method for laser peening forming of a large workpiece. The light path device comprises a laser device, a dynamic focusing and shape righting system, a scanning galvanometer system, the formed workpiece, a computer, a laser control card and a movement control card. The laser control card is connected with the laser device and is used for controlling starting of the laser device and various parameters of laser. The movement control card is connected with the dynamic focusing and shape righting system and the scanning galvanometer system. Both the laser control card and the movement control card are controlled by the computer. The dynamic focusing and shape righting system and the scanning galvanometer system are controlled by the computer to make corresponding movement after a specific shot blasting path is given, the shape of the section and the focusing position of a high-energy pulse laser beam are changed after the high-energy pulse laser beam emitted by the laser device passes through the dynamic focusing and shape righting system, and then the high-energy pulse laser beam points to a specific emergent direction after passing through the scanning galvanometer system, so that scanning and shot blasting on the large workpiece by laser are achieved through continuous movement of the dynamic focusing and shape righting system and the scanning galvanometer system.

A fluid ejecting apparatus includes: a carriage that supports a fluid ejecting head for ejecting fluid through a plurality of nozzles and is able to be reciprocated; a cap unit that comes in contact with the fluid ejecting head to form a plurality of cap internal spaces individually enclosing the nozzles; a suction unit that is able to suck the cap internal spaces via respective suction passages; and a selective blocking unit that is able to selectively block the suction passages as the carriage is reciprocated in a maintenance area for the maintenance of the fluid ejecting head, wherein the selective blocking unit includes: a blocking member that is reciprocated as the carriage is reciprocated in the maintenance area; and cam surfaces that engage with the blocking member as the blocking member is reciprocated to lead the blocking member to blocking positions for blocking the suction passages in order.

The invention discloses a lifesaving device by breaking windows, comprising a case, a bracket assembly, a hammer head for breaking the window and a pair of hooks controlled by a torsional spring, wherein the case wall on the front side end of the case is provided with a through hole for a hammer head to be ejected; the lower section of the inner working chamber in the case is provided with a working slope; the bracket assembly moves back and forth along the axis; the front end of the hammer head is pointed, and the rear end is provided with a bench preventing the hook from sliding down; the middle of the hook and the torsional spring are both fixed on the fixed junction plate of the bracket; the hook shape of the hook support arm causes the hook to clamp the hammer head under the normal condition; the exterior angle on the bottom end of the hook is provided with an arc angle; and the arc angle can cause the front falcula to gradually open and loosen the hammer head when the arc angle slides down if contacting with the working slope of the lower section of the working chamber in the case. The front end of the main spring is sheathed on the rear bench of the hammer head, and the rear end is propped against on the inner wall of the case of the tail part. The lifesaving device by breaking windows can conveniently and quickly break glass windows and doors during rapid-onset disasters, such as fire hazard, earthquake, traffic accidents and the like, helps people to quickly escape from dangerous sites and protects life safety of people.

There is provided a cover material fastening clip for attaching a cover material to a cushion material. The clip is provided with a locking portion, a hook portion and a guide portion. The hook portion is provided with an extending portion that extends downward from the locking portion, a first hook piece a second hook portion. The guide portion is formed in the locking portion or the extending portion and is located above the first and second hook pieces. A space between a leading end portion of the first hook piece and the guide portion serves as a first insertion opening with a predetermined gap into which the wire is inserted. A space between a leading end portion of the second hook piece and the guide portion serves as a second insertion opening with a predetermined gap into which the wire is inserted.

A driving apparatus of the invention comprises a fixed member, a piezoelectric element fixed at one end to the fixed member, and a driving friction member fixed to the other end of the piezoelectric element. The driving apparatus of the invention is arranged to move a movable unit which is slidably mounted on the driving friction member by expansion and contraction of the piezoelectric element. Herein, a bonded surface of the piezoelectric element to the driving friction member is included in a bonded surface of the driving friction member to the piezoelectric element.

The invention discloses a back off-axis alignment system based on an array photoelectric sensor, which is used for determining the relative positional relation between a base and a workpiece table, wherein the workpiece table is provided with a first surface and a second surface opposite to the first surface and is used for supporting the base and enabling the base to move; the back of the base is in contact with the first surface of the workpiece table. The alignment system comprises an imaging optical system, an array photoelectric sensor and a control module, wherein the imaging optical system is used for imaging at least one alignment marker on the back of the base above the first surface of the workpiece table; the array photoelectric sensor is used for detecting an image of the alignment marker; the array sensor comprises a plurality of separated photoelectric sensors; the size of a photosensitive surface of each photoelectric sensor is greater than the minimum size of the alignment marker, and the space between the photosensitive surfaces of any two photoelectric sensors is less than the minimum size of the image of the alignment marker; the control module is used for acquiring and processing image information of the alignment marker to determine positional information of the alignment marker on the back of the base.

The invention discloses a chip welding device which can shorten the chip motion range and improve the chip transfer method to reduce the device volume when picking up the chip and relative chip welding method. Wherein, the chip support makes single-axle motion different from the plane motion, to reduce the motion range of chip support to one axle; and using one driving unit to drive the extrusion device and the chip camera to move vertical to the motion of chip support; and it arranges a rotation device between the chip box and the chip support when loading the chip to reduce the motion range of moving element. The invention can attain economic benefits, while one device can effectively weld several chips.

A shelter system is disclosed which comprises three central elements. A rotatable barrier element provides protection from incoming ballistic threats. The barrier functions on the principle of detonating, absorbing, and deflecting incoming threats away from a designated area of the shelter. A protective envelope element utilizes a compartmentalized vessel, two containment components, and a strata of alternating compacted fill and interstitial plate layers; the strata is enclosed within the vessel and two containment components. The interstitial plates serve a dual role in providing a compaction surface in the fill method and layering for the mitigation of ballistic threats. The design of the vessel permits each vessel to be filled while positioned flat on the ground surface; once filled and sealed, multiple vessels may be re-positioned in vertical, horizontal, sloped, or spanning arrangements. An A-frame based structural element functions as the fulcrum for the rotatable barrier and as the mount for the envelope trays. The structural system has an option of fastening to the framing system of the standard conex container.

A low-cost approach is provided for forming a low splice loss, low back reflection loss and mechanically robust angle-fusion splice between a standard silica fiber and a low-temperature non-silica glass fiber. This is accomplished by angle cleaving the silica fiber, square cleaving the non-silica fiber and then asymmetrically heating the fibers to form an angle fusion splice. A matched angle at the end of the non-silica fiber is generated in situ during the splicing process. The tip of the angle-cleaved silica fiber may be polished flat back to the edge of the core to reduce the range of motion of the non-silica fiber during splicing thereby further reducing splice loss and enhancing the mechanical strength of the joint.