8541 results about "Closed state" patented technology

A valve prosthesis which is especially useful in the case of aortic stenosis and capable of resisting the powerful recoil force and to stand the forceful balloon inflation performed to deploy the valve and to embed it in the aortic annulus, comprises a collapsible valvular structure and an expandable frame on which said valvular structure is mounted. The valvular structure is composed of physiologically compatible valvular tissue that is sufficiently supple and resistant to allow the valvular structure to be deformed from a closed state to an opened state. The valvular tissue forms a continuous surface and is provided with strut members that create stiffened zones which induce the valvular structure to follow a patterned movement in its expansion to its opened state and in its turning back to its closed state.

The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention includes signal terminals and a common terminal. A transmitting circuit receives the input signals of the transmitting circuit coming from a source. The output of the transmitting circuit delivers, when the transmitting circuit is in the activated state, voltages between one of the signal terminals and the reference terminal (ground). A receiving circuit delivers, when the receiving circuit is in the activated state, output signals of the receiving circuit determined each by the voltage between one of the signal terminals and the common terminal, to the destination. In the closed state, the common terminal switching circuit is, for the common terminal, equivalent to a voltage source delivering a constant voltage, connected in series with a passive two-terminal circuit element presenting a low impedance.

A backplane for an electro-optic display comprises a pixel electrode (104), a voltage supply line (C) arranged to supply a voltage to the pixel electrode (104), and a micromechanical switch (106, 112) disposed between the voltage supply line (C) and the pixel electrode (104), the micromechanical switch (106, 112) having an open state, in which the voltage supply line (C) is not electrically connected to the pixel electrode (104), and a closed state, in which the voltage supply line (C) is electrically connected to the pixel electrode (104).

A device and method for treatment of atrioventricular regurgitation comprises a suturing device. The suturing device is configured to be introducible, via blood vessels leading to the heart, to two leaflets of the atrioventricular valve between the atrium and a corresponding ventricle of the heart. The suturing device is configured for binding together the two leaflets along the free edges of the leaflets. A method of using the device includes inserting the suturing device into a catheter, introducing the catheter to the heart and positioning a distal end of the catheter close to two leaflets of an atrioventricular valve, capturing the free edges of the two leaflets with the suturing device in its open state, binding together the two leaflets by transition of the suturing device into its closed state, and retracting the catheter from the heart. As a result, the closing of the valve is improved.

Non-volatile field effect devices and circuits using same. A non-volatile field effect device includes a source, drain and gate with a field-modulatable channel between the source and drain. Each of the source, drain, and gate have a corresponding terminal. An electromechanically-deflectable, nanotube switching element is electrically positioned between one of the source, drain and gate and its corresponding terminal. The others of the source, drain and gate are directly connected to their corresponding terminals. The nanotube switching element is electromechanically-deflectable in response to electrical stimulation at two control terminals to create one of a non-volatile open and non-volatile closed electrical communication state between the one of the source, drain and gate and its corresponding terminal. Under one embodiment, one of the two control terminals has a dielectric surface for contact with the nanotube switching element when creating a non-volatile open state. Under one embodiment, the source, drain and gate may be stimulated at any voltage level from ground to supply voltage, and wherein the two control terminals are stimulated at any voltage level from ground to a switching threshold voltage larger in magnitude than the supply voltage. Under one embodiment, the nanotube switching element includes an article made from nanofabric that is positioned between the two control terminals. Under one embodiment, one of the two control terminals is a release electrode for electrostatically pulling the nanotube article out of contact with the one of the source, drain and gate so as to form a non-volatile open state. Under one embodiment, the other of the two control terminals is a set electrode for electrostatically pulling the nanotube article into contact with the one of the source, drain and gate so as to form a non-volatile closed state.

A surgical clip applier includes a handle assembly, a first clip assembly, and a second clip assembly. The first clip assembly is adapted to receive only a single clip while the second clip assembly is adapted to receive multiple clips. The handle assembly is sized and configured to receive the first clip assembly or the second clip assembly. A jaw assembly includes a pair of jaws each with an elongate support arm, and a bridge holding the jaws in an aligned relationship. A housing has a fixed relationship with the bridge while permitting movement of the jaws between an open and a closed state. A coupling attaches the housing to the handle assembly. An associated method of operation includes the step of removing one of the single clip jaw assembly and the multiple clip-jaw assembly, disposing of the one jaw assembly while mounting the other jaw assembly on the handle.

This invention includes a clip having arms which grip living tissue, a press tube serving as a clamping member which is fitted and mounted on the clip to close the arms of the clip, a coupling member which can be inserted into the press tube and engages with the clip, and projections serving as lock portions which hold the arms of the clip in a closed state when the clip engages with the press tube.

A drying jig circulating apparatus includes a drying jig assembling apparatus for assembling a drying jig on a movable table, a drying apparatus for drying a ceramic molded body held by the drying jig, and a drying jig disassembling apparatus for disassembling the drying jig on a movable table, and a drying jig circulating conveyor for transporting the drying jig from the disassembling apparatus to the assembling apparatus. The drying jig is configured by two or more separate jigs with a fixing member that integrates the separate jigs, or formed by one openable jig with a fixing member for maintaining a closed state. The drying jig assembling apparatus further includes a molded body mounting mechanism, a ceramic molded body holding mechanism, and a jig delivering mechanism. The drying jig disassembling apparatus further includes a jig receiving mechanism, a jig releasing mechanism, and a molded body taking-out mechanism.

A sound-reproducing package comprises a housing for storing a consumer product, a disposed therein sound signal reproducing unit electronically connected to a power supply and a loudspeaker, at least one external activation sensor connected to the sound signal reproducing unit, and a package state sensor operative to form a signal corresponding to an open or closed state of the package, or the presence or absence of a consumer product in it. The package state sensor is connected to the sound signal reproducing unit operative to select from its memory sound signals for reproducing depending on the signal from the package state sensor.

A control panel having a touch sensitive position sensor and at least one mechanical switch located within a sensitive area of the position sensor is provided. The position sensor comprises a capacitive position sensing element coupled to position sensing circuitry operable to determine the position of a capacitive load, such as a finger, positioned adjacent to the sensitive area of the position sensing element. The mechanical switch has an open state and a closed state and is arranged such that a contact of the switch is selectively electrically coupled to or decoupled from the position sensing element depending on whether the switch is in the open or closed state. A compact and robust control panel can thus be provided in which the presence of the mechanical switch within the sensitive area of the position sensor does not significantly effect its sensitivity.