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1490 results about "Lower upper" patented technology

Methods of making bioprosthetic heart valves with strain matched leaflets

Heart valve leaflet selection methods and apparatuses which subject individual leaflets to loads and measure the resulting deflection to more reliably group leaflets of similar physical characteristics for later assembly in prosthetic heart valves. The deflection testing may be accomplished using a variety of test set ups which are designed to impart a load on the leaflet which simulates the actual loading within a heart valve. The results from a number of deflection tests are used to categorize individual leaflets, which data can be combined with other data regarding the characteristics of the leaflet to better select leaflets for assembly into a multi-leaflet heart valve. In one embodiment, the deflection test is combined with an intrinsic load test, and leaflets having similar deflection and intrinsic load values used in the same heart valve. One apparatus for testing the leaflets includes a frame for securing the arcuate cusp of the leaflet while the straight coapting edge remains free, to simulate the actual leaflet mounting configuration within the heart valve prosthesis. The frame may include a lower portion having a recess for the leaflet and plurality of receptor holes around the peripheral edge of the recess, and an upper portion having a plurality of needles which extend downward through the leaflet and into the receptor holes and secure the edges of the leaflet.
Owner:EDWARDS LIFESCIENCES CORP

Remote control keypad unit

A remote control device for operating an electronic device having an means. The remote control device is configured to be grasped for operation by both hands of a user and is comprised of a body having a lower part an upper part and a continuous sidewall extending between said lower and upper parts. One or more operation areas are positioned on the body and are equipped with a plurality of channel operation buttons, the channel operation buttons being arranged on the body and numbered to correspond with a user's fingers such that when the remote control is grasped in both of the user's hands, each of the user's fingers are comfortably positioned upon one of the plurality of operation buttons so as to facilitate control of the electronic device such that selection may be rapidly and conveniently changed by depressing the desired button with the finger which rests upon the operation button which corresponds to the desired selection. Additional basic control buttons, such as volume control, are easily reached by the user's fingers while grasping the body or bodies. The remote control device also includes channel operation means capable of generating a code signal which corresponds to one or more of the channel operation buttons when one or more of the channel operation buttons are depressed. An infrared beam emitter or wired connection is also provided for producing a signal beam to engage the infrared beam receiver of the television set to change a channel.
Owner:CUMMINGS THOMAS F

Lateral deviation full-bridge double-interdigital metal strain gauge capable of measuring surface strain lateral partial derivatives

InactiveCN105004262AEfficient detection of surface strain lateral first orderEfficient detection of second order partial derivativesElectrical/magnetic solid deformation measurementElectrical resistance and conductanceFull bridge
The invention relates to a lateral deviation full-bridge double-interdigital metal strain gauge capable of measuring surface strain lateral partial derivatives, which comprises a base and four sensitive grids, and is characterized in that both ends of each sensitive grid are respectively connected to an outgoing line, each sensitive grid comprises a sensitive section and a transition section, and axes of the sensitive sections are straight lines and parallelly arranged in the same plane; in the plane determined by the axes of the sensitive sections, the axis direction of the sensitive sections is an axial direction, and the direction perpendicular to the axial direction is a lateral direction; the four sensitive grids are consistent in resistance, the resistance variation amount is consistent under the same strain, the four sensitive grids are called as an upper-upper sensitive grid, an upper-lower sensitive grid, a lower-upper sensitive grid and a lower-lower sensitive grid from top to bottom along the lateral direction, the upper-upper sensitive grid and the upper-lower sensitive grid are arranged in an interdigital mode, and the lower-upper sensitive grid and the lower-lower sensitive grid are also arranged in the interdigital mode; and centers of the four sensitive grids have no deviation in the axial direction and have deviation in the lateral direction. The lateral deviation full-bridge double-interdigital metal strain gauge not only can measure the strain, but also can effectively detect a lateral first-order derivative and a lateral second-order derivative of the surface strain.
Owner:山东尔湾海洋智能科技有限公司

Digital impression for remote manufacturing of dental impressions

A “digital impression” is provided in lieu of a physical “dental” impression. A 3D digitizer is used to capture the digital impression, e.g., by scanning in a patient's oral cavity. A digital impression “data set” is formed using a computer-implemented method. The method begins by generating a three dimensional (3D) restoration model. Then, a bounding volume of the restoration model is computed. The bounding volume is defined as at least a minimum 3D volume that contains the 3D model. Thereafter, a lower solid 3D model, and an upper solid 3D model are created; these lower and upper models have a predetermined relationship with one another. In particular, when superimposed upon one another within the bounding volume, the lower and upper 3D models define a cavity into which the restoration model is adapted to fit. The restoration model, the lower solid 3D model and the upper solid 3D model are then aggregated into the data set to form the digital impression. Typically, the digital impression is generated at a first location, i.e., a dental office, and then transmitted to a second location, a dental laboratory, remote from the first location. Such transmission is conveniently done over a network, such as a TCP / IP network (e.g., the Internet). A dental item is then manufactured at the second location. Thus, for example, the lower solid 3D model may be used to build a coping, or the restoration model itself used to build a restoration. In the latter case, information in the data set may be used to check a fit of the restoration.
Owner:D4D TECH LP

Holder for an electronic device

An apparatus and method for holding a portable electronic device, comprising a base formed of thin, flat, rigid, material, and having, in a lower portion a first, substantially unbroken, flat surface, against which the inner lower surface of the device can be mounted; in any upper bifurcated portion a central slot with a relatively wide open upper end and a relatively narrow closed lower end adjoining the lower portion, and on the sides of the slot open upper end a pair of upwardly-extending, laterally-spaced, second and third mounting surfaces, against which spaced-apart inner upper surfaces of the device can be mounted; a first pair of holes formed in the outer ends of the second and third mounting surfaces; a second hole formed in a lower end of the lower portion; a plurality of inwardly-extending notches formed in the outer edge surfaces of the lower and upper portions; a cord having each of two end portions threaded through the first pair of holes; a middle portion formed as a loop and threaded through the second hole; on each end of the cord a resilient wedge; wherein the device, when equipped with a mounting clip or button, is adapted to be detachably secured to the base by being mounted on the closed lower end of the slot, and if not so equipped is adapted to be strapped to the base by use of the cord and by use of the wedge members is adapted to be suspended from a structure formed so as to receive, squeeze, and detachably hold the wedge members and thereby suspend the base.
Owner:COREY DONALD CHARLES +1
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