981 results about "Arcuate shape" patented technology

A bone member fastener for closing a craniotomy includes a cap and a base interconnected by a narrow cylindrical collar. The cap has an externally threaded stud that screws into an internally threaded bore of the collar, thereby allowing the cap and base to be brought into clamping engagement against the internal and external faces of a bone plate and surrounding bone. In a particularly disclosed embodiment, the base of the fastener is placed below a craniotomy hole with the collar projecting into the hole, and the stud of the cap is screwed into the bore of the base from above the hole to clamp a bone flap against the surrounding cranium. This device provides a method of quickly and securely replacing a bone cover into a craniotomy. The distance between the cap and base can be selected by how far the threaded stud of the cap is advanced into the internally threaded collar. The fastener is therefore adaptable for use in several regions of the skull having various thicknesses. An insertion tool with a long handle permits safe and convenient placement of the base between the brain and the internal face of the bone plate. Some disclosed embodiments of the fastener have a cap and base that conform to the curved surface of the skull, for example by having an arcuate shape or flexible members that conform to the curvature of the bone plate and surrounding cranial bone as the fastener is tightened.

A system for tracking a gaze of an operator includes a head-mounted eye tracking assembly, a head-mounted head tracking assembly and a processing element. The head-mounted eye tracking assembly comprises a visor having an arcuate shape including a concave surface and an opposed convex surface. The visor is capable of being disposed such that at least a portion of the visor is located outside a field of view of the operator. The head-mounted head tracking sensor is capable of repeatedly determining a position of the head to thereby track movement of the head. In this regard, each position of the head is associated with a position of the at least one eye. Thus, the processing element can repeatedly determine the gaze of the operator, based upon each position of the head and the associated position of the eyes, thereby tracking the gaze of the operator.

A segmented intervertebral body fusion support includes a plurality of segments, the segments including an initial segment, a final segment and at least one intermediate segment. The intermediate segment has a generally trapezoidal configuration and the initial and final segments include tapered side walls providing triangular gaps between adjacent segments. A draw wire is fixed to the first segment and passes through the remaining segments. By pulling the draw wire relative to the segments, the segments are drawn together in a generally arcuate configuration. The draw wire includes an enlargement that passes through the final segment and engages a plurality of fingers on the final segment, which prevents the draw wire from retracting, maintaining the arcuate configuration. The segmented device can be inserted through a laparoscopic device into the intervertebral space and can be subsequently drawn into the arcuate configuration to establish the desired intervertebral spacing.

An implant for installation into a portion of an articular surface includes a protrusion configured to cover an un-excised portion of articular surface proximate to the implant. Another implant may form a cavity to allow the un-excised portion of articular surface to remodel over a perimeter edge of the implant. The implant may also include indentations such as grooves to promote articular cartilage remodeling over a portion of the load bearing surface of the implant. An elongated or non-round implant is also provided having two opposing concentric arcuate shaped sides, as well as a method to seat such an implant in an articular surface. A method for seating an implant without cutting articular cartilage is also provided.

A tissue retractor includes a body having proximal and distal ends. The retractor also includes a retraction device having a head connected to the distal end of the body and defining two opposing openings, an actuator movably disposed in the head, and two substantially rigid needles each pivotably connected to the actuator for traveling through a respective one of the openings. The needles have an arcuate shape. A one-handed actuation device is connected to the proximal end of the body and is operatively connected to the actuator through the body. Upon actuation of the actuation device, the actuator moves to selectively extend the needles out of the head and withdraw the needles into the head. Methods for using the tissue retractor, in particular for the treatment of Gastroesophageal Reflux Disease, are also provided.

The present invention relates to an ultrasound system for diagnosing breast cancers. The ultrasound system comprises an ultrasound probe including an array transducer having an arcuate shape, the array transducer containing a plurality of elements arrayed in a longitudinal direction of the array transducer. The ultrasound probe further includes a probing surface for contacting a surface of the target object, wherein the probing surface is formed to have a concave shape at a front side of the array transducer.

Acoustic transducers configured with transducer elements disposed on an arch or arcuate shaped member adapted to fit in juxtaposition around a tubular. The arcuate shaped member is adapted with conductors to provide a voltage to the transducer elements. One embodiment uses a metallic arcuate shaped member. Embodiments implemented as sources are used to excite borehole acoustic modes. Some embodiments provide phased array acoustic energy excitation/signal reception. The transducers are covered with a sealer in a liquid-free configuration and shields are used to protect the transducers.

A tissue retractor includes a body having proximal and distal ends. The retractor also includes a retraction device having a head connected to the distal end of the body and defining two opposing openings, a connector movably disposed in the body, and two flexible needles of a shape memory material having a memory shape. The needles are fixedly connected to the connector for traveling through a respective one of the openings. The memory shape of the needles includes a portion with an arcuate shape. A one-handed actuation device is connected to the proximal end of the body and is operatively connected to the connector through the body. Upon actuation of the actuation device, the connector can be moved to selectively extend the needles out of the head and withdraw the needles into the head. Methods for using the tissue retractor, in particular for the treatment of Gastroesophageal Reflux Disease, are also provided.

A fuel tank opening-closing device includes a flap valve mechanism situated inside a tank opening forming member and having a flap valve mechanism; and an opening-closing activation mechanism adapted to selectively set the flap valve mechanism to a locked position or an unlocked position. The opening-closing activation mechanism includes a cover covering the peripheral edge portion of the opening-closing member and having a cover body produced by being split into arcuate shapes of prescribed width; a nozzle detection mechanism having introductory push parts that are adapted to receive force of motion in the insertion direction by a fueling nozzle; locking members which engage or disengage from the opening-closing member; and a locking mechanism having and adapted to move the locking members from the locked position to the unlocked position through interlocking operation with the introductory push parts.

A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator inside the drum section utilized to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces.

An elongate sleeve for protecting elongate members and method of construction thereof has a textile sleeve with a wall having an inner surface providing a cavity extending along a longitudinal axis of the sleeve for receiving the elongate members. A resilient support member is arranged in communication with the wall. The support member has an arcuate shape in lateral cross-section with an outer convex surface facing outwardly from the axis for flush engagement with the inner surface of the wall and an inner concave surface facing inwardly toward the axis. The support member extends less than completely about a circumference of the inner surface.

A modular tower structure is described herein. The modular tower uses a cost-effective, efficient design that reduces the amount of steel necessary for tower structures for wind turbines. The modular tower is constructed from sections. The sections are constructed from panels. The panels comprise a curved or arcuate shape. The panels include vertical edges and horizontal edges. A vertical connection connects or secures the panels at the vertical edges of the panels and forms the sections. The sections have a generally circular shape. The vertical connection includes an interior vertical friction plate positioned over a seam or gap between adjacent panels and an exterior vertical friction plate positioned over the seam or gap between adjacent panels. A horizontal connection connects or secures the sections at the horizontal edges of the panels. The horizontal connection comprises an interior friction plate that covers a seam or gap between the adjacent sections and an exterior friction plate that covers the seam or gap between the adjacent sections.

A one-way clutch with an outer race and an inner race is disclosed. One of the races includes at least one pawl and an engagement member for holding the at least one pawl in engagement with ratchet teeth on the other race. The contact surface of the at least one pawl or the ratchet teeth is an arcuate shape for improved load distribution. The arcuate contact surface has a radius of curvature that is greater than a radius of curvature at corners adjacent to the arcuate contact surface.

The present invention describes a beverage can end which utilizes less material and has an improved internal buckle strength based on the geometric configuration of a chuck wall, inner panel wall and central panel, and which, in one embodiment utilizes an arcuate shaped chuck wall with a radius of curvature between about 0.150 inches and 0.250 inches with at least one transition zone positioned between an upper and lower end of the chuck wall.

The present invention provides methods for forming an ophthalmic lens that can include a media insert and/or electronic components. In particular, the present disclosure provides for adhesion promoting functionalization steps for a biocompatible coating to bind a hydrogel material to a plastic surface or electronic component prior to the polymerization of the hydrogel. In some aspects, the media insert can be used to contain energy sources and/or functional electronic components which may be, for example, in a stacked integrated component configuration to permit a generally arcuate shape that can conform to the anterior surface of an eye.

A user-configurable display is provided. The display has shelves that can be variable in length with shelf ends that fit within corner pieces. The corner pieces can be arcuate-shaped, T-shaped, and cross-shaped. A locking mechanism such as a cam engages each shelf end such that the shelves are engaged to the corner pieces. A cover piece covers the corner pieces and hides the locking mechanism from view. Each shelf end will fit into the lips of the corner pieces and has one or more bores for receiving a cam bolt that engages the cams. A shelf end may include a raised section that fits within the lips of the corner pieces.