1552results about How to "Change length" patented technology

Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.

A power supply system for a firearm including a plurality of leads disposed in a rail for providing power to an electric firearm accessory attached thereto and an electric firearm accessory including connectors for electrically connecting to leads disposed in a rail on which the accessory is mounted.

A method and apparatus for providing an adjustable length surgical implant is provided, wherein the surgical implant is readily adjustable by a surgeon using a surgical tool sized for use with the surgical implant. Adjustment of the surgical implant further requires a small incision through the skin prior to the adjustment of the length of the implant, such that the potential for infection is greatly reduces and the associated trauma of surgery is lessened for the patient.

A method and apparatus for providing an adjustable length surgical implant is provided, wherein the surgical implant is readily adjustable by a surgeon using a surgical tool sized for use with the surgical implant. Adjustment of the surgical implant further requires a small incision through the skin prior to the adjustment of the length of the implant, such that the potential for infection is greatly reduces and the associated trauma of surgery is lessened for the patient.

A liquid crystal material is held between a circuit array and counter substrates. A plurality of spacers are disposed to keep a gap between the circuit array and counter substrates substantially constant. Change in distance of the gap equivalent to constriction of the liquid crystal material due to change in temperature from 20.degree. C. to -20.degree. C. is less than change in height of the spacers on conditions that the pressure of 100 mN / nm2 is applied between the substrates and that the liquid crystal material is not held between the substrates.

The invention relates to microwave source devices in the technical field of high-power microwaves and provides a wave-band-cross mechanical frequency modulation relativity back wave oscillator. The wave-band-cross mechanical frequency modulation relativity back wave oscillator comprises a cathode seat, a cathode, an anode outer cylinder, a cut-off neck, a slow wave structure, an inner conductor, a collector, a microwave output and a solenoidal magnetic field. The inner conductor is a cylinder, by adjusting the length of the inner conductor, the frequency of outputting microwaves can be adjusted, and outputting of wave-band-cross microwaves is achieved. An annular groove is formed in the collector, and a supporting rod is fixed on the anode outer cylinder. The wave-band-cross mechanical frequency modulation relativity back wave oscillator has the advantages that by adjusting the length of the inner conductor, frequency can jump between L wavebands and S wavebands, the adjusting manner is simple, the frequency in the wavebands can be adjusted, the bandwidth in the L-waveband frequency is adjusted by 7% or so, and the bandwidth in the S-waveband frequency is adjusted by 2% or so. The outer radius of a slow-wave vane can have a low value, and miniaturization is achieved. A groove structure is reserved at the left end of the collector, reflection of the tail end of the device can be increased, and achieving long-pulse outputting of the wavebands is facilitated.

An adjustable depth merchandising apparatus includes an elongated mounting member operationally securable to an associated shelf and extending parallel to a longitudinal axis thereof. An adjustable divider system is selectively connected to the mounting member. The divider system includes a first divider portion and a second divider portion. Each portion contains connecting elements, which selectively engage each other to operatively connect the first divider portion to the second divider portion, thereby enabling the divider system to be employed on associated shelves of varying depths. A trackless pusher system is selectively received on the mounting member. The pusher system includes a mounting clip engaging the mounting member, a coil spring connected to the mounting clip and a pusher body slidably mounted in relation to the mounting member, wherein the coil spring is supported by the pusher body and connects the pusher body to the mounting clip. Both the divider system and the pusher system have a length which can be adjusted, thereby enabling the two systems to be employed on associated shelves of varying depths.

Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.

An actuator (4) is connected, on one side, to a valve needle (3), and on the opposite side, to a hydraulic piston (6) pertaining to a hydraulic length compensator. A working chamber (5) is divided by a tight separating membrane (9), into an actuator chamber (10) containing the actuator (4) and a fluid chamber (11) which can be filled with the fluid to be dosed in a pressurized manner while the actuator chamber (10) and the hydraulic chamber (7) are filled with a hydraulic fluid. A base pressure can be produced in the hydraulic fluid by means of the pressure of the fluid to be dosed, which is transmitted through the separating membrane (9).

The present invention relates to hinge mechanisms for electronic devices with folding casings and to a double articulated hinge mechanism for aforesaid electronic devices offering advantageous characteristics for electric conductors to be passed through the inventive hinge mechanism. The mechanism allows pivoted junction of at least two casing parts constituting a folding casing of an electronic device, wherein each casing part includes electric components. The hinge mechanism has at least a hinge body component and a flexible electrical conductor for connecting the electronic components included by different casing parts. The hinge body component enables establishing two independent, substantially parallel and at a predefined distance separated pivot axes. Further the hinge body component provides a passage, which is adapted to receive the flexible electrical conductor for being routed though the hinge mechanism. Due to the passage, the flexible electrical conductor is held permanently in a predefined shape of the passage.

A ratcheted spinal device including a variable-length member including a ratchet mechanism that has an operative configuration that allows a change in length of the variable-length member in one direction and prevents a change in length of the variable-length member in an opposite direction, wherein the variable-length member includes polyaxial-joint attachment members for attachment to bone, which permit pivoting movement of the attachment members about more than one pivoting axis.

A multi-style wig having a wig cap (1) with an interchangeable base section (3) and special extensions (18) which may be removably attached to the wig cap. Each extension is comprised of a clip (19) having hair (9) permanently attached thereto. The clip is preferably made of an elasticized fabric material that is folded around ribbons (4, 5, 11) of the cap. The clip has fasteners (7), which are preferably snaps (8), located on each end. To use, the extension is positioned at a desired location on the cap. Then, the clip is placed around the ribbon of the cap and the fastener is secured to attach the extension to the cap. A user may also alter the appearance of the wig by changing the interchangeable base section with a different base section having a different color, style and / or length of hair.

A wheel dolly is disclosed that is suited to serve as both an automobile jack, capable of holding large loads aloft for extended periods, relying on only mechanical systems and eliminating hydraulic systems. In a further aspect, the wheel dolly of the present invention does not include extended arms, handles, or levers for pumping or rotating the lifting mechanisms. Each lifting element terminates in only a single nut exposed to the user. Preferably, each nut of each lifting system has the same plan dimensions as the other, thus providing the advantage of allowing the user to operate the dolly with a driver and only one socket.

A telescopic umbrella, such as a sunshade, that includes a lower upright stand pipe and a telescopic pipe arranged in a displaceable and arrestable manner therein. The telescopic umbrella also includes a canopy articulated on the telescopic pipe, it being possible for the canopy to be opened and closed by means of a sheathed cable or Bowden control running within the telescopic pipe and controlled by a control device. The control device is attached to the telescopic pipe so that the opening / closing movement of the umbrella canopy is uncoupled from the telescopic mechanism of the umbrella.

Balloon catheters are provided having the balloon length is substantially surrounded by an elastic cover. The balloon and the cover maintain a substantially and circular cross-section along the balloon length during inflation. The cross section is able to maintain a uniform size down the length of the balloon during inflation.