298results about How to "Travel can be limited" patented technology

Spinal stabilization devices, systems and methods are provided that include a stabilization member including a first structural member that mounts to a pedicle screw, a second structural member adjacent the first structural member and that can move away therefrom, a resilient element mounted between the structural members and that elongates to accommodate relative movement therebetween, and a travel-limiting structure mounted between the structural members and that defines and imposes upon the stabilization member a maximum distance by which the first and second structural members may be separated. The travel-limiting structure can include an axially inextensible, laterally flexible elongate element, e.g., wire-rope cable, disposed between the structural members. The resilient element extends between respective first ends of the structural members, while the travel-limiting structure can include terminations at opposite ends of the elongate element and mounted to respective second ends of the structural members opposite the first ends thereof.

System for remote management of at least one audiovisual information reproduction device comprising a host server (10) connected to each audiovisual information reproduction device (100.1 to 100.n), the host server (10) comprising a database (11) containing management information for each audiovisual information reproduction device (100.1 to 100.n, FIG. 1), characterized in that the host server (10) also comprises an “Internet” site manager (12) communicating with the database (11), and comprising a number of screens (200 to 1010), at least one first screen (200) comprising a popup menu displaying the list of audiovisual information reproduction systems (100.1 to 100.n), validating the choice of each audiovisual information reproduction device (100.1 to 100.n, FIG. 1) causing the display of a first series of screens (900, 1010) that the operator can use to modify the operating parameters of at least one selected audiovisual information reproduction device (100.1 to 100.n, FIG. 1) and / or a second series of screens (500 to 800) that the operator can use to order at least one song for downloading onto the audiovisual information reproduction systems (100.1 to 100.n, FIG. 1) from a chosen list of devices (100.1 to 100.n, FIG. 1) or to delete at least one song, and / or a third series of screens displaying information about the use of an audiovisual information reproduction device (100.1 to 100.n, FIG. 1).

This invention discloses a valve that generates a hydraulic negative pressure pulse and a frequency modulator for the creation of a powerful, broadband swept impulse seismic signal at the drill bit during drilling operations. The signal can be received at monitoring points on the surface or underground locations using geophones. The time required for the seismic signal to travel from the source to the receiver directly and via reflections is used to calculate seismic velocity and other formation properties near the source and between the source and receiver. This information can be used for vertical seismic profiling of formations drilled, to check the location of the bit, or to detect the presence of abnormal pore pressure ahead of the bit. The hydraulic negative pressure pulse can also be used to enhance drilling and production of wells.

Systems, devices and methods related to various heart valve implants and for delivery of those heart valve implants are described. The implants may be used to re-size a native valve annulus or to replace a native heart valve. The implants include a re-sizable frame having angled struts. Anchors secure the implant to tissue and collars are used to decrease the angle between the struts and contract the frame. The implant thus expands from a first size inside of a delivery catheter, to a second and larger deployed size inside the heart to engage and anchor with the tissue, and then to a third and contracted size to re-size the annulus and / or provide a secure fit for a replacement heart valve. Various delivery systems including imaging capabilities for precise delivery, positioning and anchoring of the various implants are further described.

An absolute pressure sensor includes a sense die with a reference chamber on a top side thereof. The reference chamber comprises a precisely fabricated beam that limits the travel of a diaphragm. The beam can be positioned in a cap or cover member of the sense die, thereby allowing the sense die diaphragm to move freely for a particular distance. Over this distance, the sense die will have one sensitivity. When the sense die is pressurized to a certain point, the diaphragm moves until it contacts the beam member in the cap or cover. When the diaphragm hits the beam, the sensitivity of the sense die changes, thereby allowing a smaller voltage out for the greater pressure in. Such an arrangement permits the sensor to provide a function that accurately measures low pressure and measures a higher pressure without utilizing a linear scale.

An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to the shaft includes a pair of first and second jaw members. One or both of the first and second jaw members is movable from an open configuration, to a clamping configuration. A knife blade assembly includes a knife blade translatable within the first and second jaw members. A knife blade lockout mechanism is in operative communication with the knife blade assembly and includes an elongated cam slot with a cam pin translatable therein from a distal end of the elongated cam slot corresponding to the knife blade lockout mechanism engaged with the knife blade assembly, to a proximal position corresponding to the knife blade lockout mechanism disengaged from the knife blade assembly.

This invention discloses a valve that generates a hydraulic negative pressure pulse and a frequency modulator for the creation of a powerful, broadband swept impulse seismic signal at the drill bit during drilling operations. The signal can be received at monitoring points on the surface or underground locations using geophones. The time required for the seismic signal to travel from the source to the receiver directly and via reflections is used to calculate seismic velocity and other formation properties near the source and between the source and receiver. This information can be used for vertical seismic profiling of formations drilled, to check the location of the bit, or to detect the presence of abnormal pore pressure ahead of the bit. The hydraulic negative pressure pulse can also be used to enhance drilling and production of wells.

An ophthalmologic appliance being an ultrasound prob positioning immersion shell for use in ultrasonic measurement of axial length of the eye ophthalmology and other procedures. Support members in an upper chamber and a lower chamber each provides accommodating support along and about a central axis of the ultrasound probe positioning immersion shell and about vertically spaced regions of ultrasound probes to provide for perpendicular alignment of ultrasound probes to the corneal plane. Vents in the chamber structure allow for introduction of fluid medium and for the expelling of air from the chambers to inhibit bubble formation.

An alignment guide for practice putting has a base with perpendicular target and putter face lines. An unobstructed gap extends away from the putter face line along the target line. A pair of guide rails are secured to the base in parallel relationship to and on opposite sides of the target line and spaced apart by a distance slightly greater than the distance from the toe to the heel of the putter head. The putter head can, therefore, move freely between, but be guided by, the rails. An adjustable stop limits the backswing of the putter head to allow comparison of the length of the backswing with the travel distance of the ball. An adjustable pair of stops simultaneously limiting travel of the toe and the heel of the putter head in the follow through confirm that the putter face has remained square to the target line.

A lighting system include a point light source, a tubular color adjustment means, and a light-collecting and mixing element. The color adjustment means has a color-converting tubular structure and an adjusting rod. The tubular structure is made of a light-transmitting medium doped with a wavelength-converting material. The adjusting rod is operably connected to and for adjusting the tubular structure. In operation, the point light source emits light of a first wavelength or hue. The color adjustment means adjustably intersects, through the use of the adjusting rod, the light of the first hue and converts at least a portion of the light of a first hue into a light of another hue. The light-collecting and mixing element collects and mixes the light of a first hue and the light of another hue, and directs the mixed light out the open end.

An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to the shaft includes a pair of first and second jaw members. One or both of the first and second jaw members is movable from an open configuration, to a clamping configuration. A knife blade assembly includes a knife blade translatable within the first and second jaw members. A knife blade lockout mechanism is in operative communication with the knife blade assembly and includes an elongated cam slot with a cam pin translatable therein from a distal end of the elongated cam slot corresponding to the knife blade lockout mechanism engaged with the knife blade assembly, to a proximal position corresponding to the knife blade lockout mechanism disengaged from the knife blade assembly.

Various surgical introducer needle and anchor systems are provided. The systems can include an introducer needle and a tissue support implant or sling device. The implant device can include one or more anchoring devices. The introducer needle device can include a handle assembly and a needle assembly. The needle assembly can include a generally hollow needle, and a wire traversable therein. The wire can include a distal tip adapted to selectively retract or withdraw from the engaged anchoring device upon deployment of the anchor and / or implant.

Method for remote management of at least one audiovisual information reproduction device comprising a host server connected to each audiovisual information reproduction device, the host server comprising a database containing management information for each audiovisual information reproduction device, wherein the host server also comprises a site manager communicating with the database, and comprising a number of screens, at least one first screen comprising a menu displaying the list of audiovisual information reproduction systems, validating the choice of each audiovisual information reproduction device causing the display of a first series of screens that the operator can use to modify the operating parameters of at least one selected audiovisual information reproduction device and / or a second series of screens that the operator can use to order at least one song for downloading onto the audiovisual information reproduction systems from a chosen list of devices or to delete at least one song, and / or a third series of screens displaying information about the use of an audiovisual information reproduction device.

An anti-tangling device includes a headphone cord having a distal end, a male signal plug at the distal end, a proximal end, and at least one earphone at the proximal end. Each of the plug and the earphone has first or second parts of a two-part connection device. The two-part connection device removably secures the plug and the earphone to one another. In an embodiment, the plug is the first part and the earphone has a plug-in portion as the second part. The plug-in portion defines a female port shaped to removably secure the plug therein and, when secured, forms a continuous loop with the cord, the plug, and the earphone. The plug-in portion can be integral with or removably attached to the earphone. The first and second parts can be a magnet and a magnetized piece, a hook-and-loop type fastener, or parts of a press-fit snap fastener.

A guided keeper assembly and method for metal forming dies includes a base having a mounting face, a connector portion and a central aperture. A guide pin has a cylindrical center portion closely received in the central aperture of the base for reciprocation, an enlarged first end with an alignment member, and an outwardly opening circumferential groove. A retainer ring is removably mounted in and protrudes radially outwardly of the groove to securely, yet detachably, retain the base on the guide pin between the enlarged head and the retainer ring in an assembled condition to facilitate transport and mounting of the guided keeper assembly.

A disk drive suspension and method has a limiter structure that limits movement of the tongue relative to a surrounding frame by extending the plastic film layer and optionally the metal layer components of a flexure-defining flexible circuit laminate beyond the flexure tongue distal end and attaching the terminal regions of the extended components to the surrounding frame laterally of the tongue. The flexure-defining laminate is attached to the suspension rigid portion proximally and optionally distally as well as laterally with the limiter structure. A lift tip can be used to enable lifting of the suspension and to stiffen the suspension in lieu of the distal attachment of the flexible circuit.

A surgical fastening mechanism for releasably locking an implantable tether includes a housing having a central channel. The housing has an entry aperture, an exit aperture and a side channel extending therebetween. A roller element has a sidewall with an aperture therethrough and the roller is slidably disposed at least partially in the central channel such that the entry and exit apertures are at least partially aligned with the roller aperture. This permits passage of the tether therethrough. Rotation of the roller element in a first direction winds the tether around the roller thereby creating a friction interface between the roller element, the housing and the tether. A locking mechanism is operably connected with either the housing or the roller element and is adapted to prevent rotation of the roller in the central channel and also adapted to prevent release of the tether from the roller.

An ambulance cot is provided having a wheeled carriage, a frame for mounting the wheels, a horizontally oriented patient litter supported from the wheeled carriage and variable, pneumatically powered height scissors frame. The pneumatic actuator is designed to give a patient air-ride transportation and an adjustable height litter for lifting a patient from the ground. The patient litter has a pivoting hinge for transporting a patient down stairs. This pivot will allow the stretcher to pivot to a horizontal angle while going down stairs, for patient support and ease of transportation for the operator below. One embodiment has tracks attached over the wheels to provide a more stable and smooth ride as the cot is moved down stairs. Another embodiment comprises a translational trolley configuration. A hand brake is mounted on the patient litter for braking the tank-like motion of the tracks.

A tool containment system provides various configurations of a flexible member each of which can engage a part of the external surface of a tool to provide connection means for a tether to limit travel of the tool, or to oppose disassembly of tool components, or both.

Methods of measuring displacement of a movable mass in a microelectromechanical system (MEMS) include driving the mass against two displacement-stopping surfaces and measuring corresponding differential capacitances of sensing capacitors such as combs. A MEMS device having displacement-stopping surfaces is described. Such a MEMS device can be used in a method of measuring properties of an atomic force microscope (AFM) having a cantilever and a deflection sensor, or in a temperature sensor having a displacement-sensing unit for sensing a movable mass permitted to vibrate along a displacement axis. A motion-measuring device can include pairs of accelerometers and gyroscopes driven 90° out of phase.

A bracelet clasp having two closing elements (18,20) arranged on the two ends of a bracelet to be joined thereby and provided with means (28, 40, 42) for the coupling thereof. A band (24, 60) is used to connect the elements and is mounted in such a way that it can be displaced in relation to both elements. Devices are provided for defining the course of band displacement in relation to the open position of the closing elements, and for associating one end of the band with one of the closing elements. The clasp also has a device for defining the course of band displacement in relation to the closed position of the closing elements, this device being arranged on a central portion of the band in relation to its length between the closing elements in their open position.

The present invention provides a method and system estimating the likelihood of employees not being available for work as a result of pandemic occurrence and effectiveness of related mitigation actions. The invention allows users to assess the impact of pandemic on availability of corporate workforce and to estimate the effectiveness of various corporate mitigation actions in terms of how such actions may reduce the adverse effects of a pandemic on employee availability by incorporating information on infection rate, perception, needs for family care and infrastructure availability into a system of algebraic and differential equations.

A syringe assembly including a syringe barrel having a first end, a second end, and a sidewall extending therebetween defining a chamber is disclosed. The syringe assembly includes a stopper disposed within the chamber of the syringe barrel and a plunger rod having an inner member engaged with the stopper and an outer member adapted for telescopic movement with respect to the inner member. The plunger rod is transitionable from a collapsed position, in which a portion of the inner member is nested within the outer member, to an extended position, in which the same portion of the inner member extends outside the outer member. The syringe assembly also includes a stop member configured for cooperation with a portion of the syringe barrel, upon relative movement of the outer member with respect to the inner member, to limit the outward travel of the plunger rod from the syringe barrel.

The present invention relates to compressed gas-operated firearms and more particularly to repeating gas cylinder pistols with conveyer feed of bullets for shooting. The pistol comprises a hollow pistol frame (1) made integral with a grip (3) and a trigger bow (50), a movable barrel (6) with a bullet bore (97), a load (12) and a mainspring (19) disposed on the barrel (6), a valve (57) installed in a gas chamber (110) inside a body (56), a gas cylinder (102) installed inside a rear hollow interior (104) of the grip (3), a magazine (27) installed in a front hollow interior (151) of the grip (3), separated from a rear hollow interior (104) by a partition (150), a striker-and-trigger mechanism installed inside the pistol frame (1) and on the trigger bow (50) and interacting with the movable barrel (6) and the magazine (27) for supplying bullets (246) and portions of gas from the gas cylinder (102) to the bullet bore (97) of the barrel (6), a mechanism for installing the gas cylinder (102), disposed below the gas cylinder (102) in the grip (3). In a hollow interior (4) of the pistol grip (1) a support (5) is installed, which serves as a base for the movable barrel (6) that moves along the support (5) under the action of the striker-and-trigger mechanism. The magazine is equipped with containers (100), each container (100) accommodating one bullet (246), and is installed so that an upper part of the magazine (27), extending above the pistol frame (1), is disposed between the barrel (6) and the valve (57), and the bullet opening (98) provided in a front wall (99) of the magazine (27), through which the bullet (246) under the effect of a portion of gas gets into the bullet bore (97) of the barrel (6), is disposed coaxially with the bullet bore (97), with the valve (57) and the container (100) which assumes such position before each shot. A breech block (2)is installed above the pistol frame (1).