1035 results about "Ring device" patented technology

A delivery appliance for delivering an expandable annular device, particularly an expandable intravascular device, to a desired location in a lumen, includes an annular array of supporting strips extending from a proximal end of the annular array to a distal end of the annular array, to define an annular supporting surface for the expandable annular device. Each of the supporting strips is laterally deformable to radially expand or radially contract the annular array and the annular supporting surface defined thereby. A connecting stem passes through the annular array of supporting strips and has a distal end coupled to the supporting strips at the distal end of the annular array for axial movement therewith, and a proximal end passing through the proximal end of the annular array of supporting strips for axial movement with respect thereto. The proximal end of the connecting stem is axially movable in opposite directions to move the distal end of the annular array axially away from or towards, the proximal end of the annular array to radially contract or radially expand the annular supporting surface.

Methods and apparatus for mitral valve repair are disclosed herein where the posterior mitral leaflet is supported or buttressed in a frozen or immobile position to facilitate the proper coaptation of the leaflets. An implantable apparatus may be advanced and positioned intravascularly beneath the posterior leaflet of the mitral valve. The apparatus may include one or more individual balloon members, each of which may be optionally configured with supporting integrated structures. A magnet chain catheter may be positioned within the coronary sinus and adjacent to the mitral valve to magnetically secure the apparatus in position beneath the posterior mitral leaflet. Alternatively, a split-ring device may be placed about the chordae tendineae supporting the mitral valve such that the ring slides along the chordae tendineae alternately against the mitral leaflet and towards the papillary muscles during systole and diastole.

An anastomotic ring device for forming a hollow rivet (ring) attachment between tissue lumens facilitates laparoscopic or endoscopic implantation by including features that facilitate actuation from a stressed, generally cylindrical shape. Economical manufacturer is achieved by weaving open ended strands into a generally cylindrical stent shape that is imparted with a Shape Memory Effect (SME) to actuate to a hollow rivet (ring) shape. Alternatively or in addition to SME inherent in the woven strands, an actuating force may be received from a helical spring element incorporated into the ring. Self-actuating ring devices are enhanced by forming woven strands into petals that diverge from opposing petals such that the strands encounter less friction when actuating. Each of these features alone or in combination enhance clinical use of anastomotic ring devices, such as a bariatric gastric bypass procedure.

Creating an anastomosis, or the surgical formation of a passage between two normally distinct vessels or lumens, is enhanced by an applier that introduces a ring device without the need for a separate anvil to form a hollow rivet shaped attachment. Moreover, the ring device may be advantageously formed in a cylindrical shape from molded polymer material or stamped from sheet metal with proximal and distal rings connected by proximal and distal arms that respectively form hinged, ring shaped so appose tissue walls. A center ring or portion sits in the attachment site. The applier causes actuating by moving the rings relative to one another. A latching mechanism locks the rings in the actuating state.

Creating an anastomosis, or the surgical formation of a passage between two normally distinct vessels or lumens, is enhanced by an applier that introduces a ring device without the need for a separate anvil to form a hollow rivet shaped attachment. Moreover, the ring device may be advantageously formed in a cylindrical shape from molded polymer material or stamped from sheet metal with proximal and distal rings connected by proximal and distal arms that respectively form hinged, ring shaped so appose tissue walls. A center ring or portion sits in the attachment site. The applier causes actuating by moving the rings relative to one another. A latching mechanism locks the rings in the actuating state.

The invention relates to a micro-structure fiber optic Fabry-Perot cavity quasi based quasi-distributed sensor, which comprises a broadband light source (1), a fiber optic circular (2), a plurality of sensor units (3), a sensor-based optical fiber (4), an optical spectrum analyzer (5) and a data processor (6), wherein each sensor unit (3) is a micro-structure fiber optic Fabry-Perot cavity, and the sensor units are connected in series and are integrated on the sensor-based optical fiber (4); and three ports of the fiber optic ring device (2) are respectively connected with the broadband light source (1), the sensor-based optical fiber (4) integrating all sensor units, and the optical spectrum analyzer (5), and the optical spectrum analyzer (5) is connected with the data processor (6). The micro-structure fiber optic Fabry-Perot cavity quasi based quasi-distributed sensor has the advantages of large sensing capacity, simple structure, low cost, wide application prospect and the like.

The invention discloses a digital locked ring device to realize clock phase smooth conversion, which is characterized by the following: the reference source processes the selected reference clock according to master spare pattern; the time digital converses the reference clock and phase difference from local clock of frequency divider into the corresponding coded digital code to realize phase demodulation and phase difference digitalization to be transmitted to CPU filter and locked processing unit the proceed linear phase disposal, low-pass digital filter disposal, locked disposal, which outputs the digital phased error signal to the digifax converser as corresponding analog voltage-controlled value, in order to control the corresponding vibrating frequency output by voltage-controlled crystal oscillator; the frequency is processed by frequency divider to transmit the local clock with the same frequency as reference frequency to time digital converter. The invention realizes high-precision error control of main spare systems, which is convenient to integrate chip with high reliability and integration level.

A method and apparatus automatically controls the insertion of information flow data over a shared CPRI link (561) by providing a hardware control mechanism (504-509) at a local radio base station subsystem (501) connected in a CPRI daisy chain configuration between a downstream RE device (570) and an upstream REC device (560) for determining whether the control word being transmitted is sourced from a downstream device (e.g., forwarded data from a downstream RE device) or from the local device.

The invention relates to a double-disk type magnetorheological clutch which comprises a driving disk, a driven disk, a magnetorheological fluid, a transmission shaft, a rotating blade, a magnetic conduction shell, a magnet exciting coil, an insulation ring, a fluid inlet, a fluid outlet, a bearing and a sealing element, wherein the driving disk is connected to a driving shaft; the driven disk is connected to a driven shaft; the magnetorheological fluid is filled between primary and secondary magnetic conduction disks through the fluid inlet; a sealing ring device is rotated so as to keep the magnetorheological fluid between the two disks; the magnet exciting coil is fixed in the magnetic conduction shell with no need of an electric brush; and the magnetorheological fluid is sealed between the two disks, and the rotating blade is arranged on the transmission shaft. The rotating blade is rotated under the driving of the transmission shaft, so air is guided to circularly flow through an air vent, and the excellent radiating property is maintained. The double-disk type magnetorheological clutch has the advantages of compact structure and good radiation property, and can be used for natural air cooling.

The invention relates to an annular water tank device for simulating sediment pollutant resuspension release. The annular water tank device comprises an annular water tank main body, a base, a rotary power device, a lifting power device and a flow velocity measurement and sampling device, wherein the annular water tank main body is arranged on the base; the lifting power device is arranged in the center of the base; the rotary power device is arranged at the upper end of the lifting power device; the flow velocity measurement and sampling device is arranged on the upper part of an outer wall of the annular water tank main body. The annular water tank device is small in size and can be conveniently moved even can be transported to be subjected to field sampling for test, a storage reservoir is not needed, a water pump is not needed, a small number of needed samples are needed, the flow velocity is conveniently and feasibly adjusted, observation and operation are convenient, mechanical interference is avoided, and infinitely long water flow can be simulated. An eccentric shear ring device floating on water surface is adopted in the device, and water flow in the annular water tank can be kept horizontal, so that secondary flow development is effectively suppressed.

An anastomotic ring device for forming a hollow rivet (ring) attachment between tissue lumens facilitates laparoscopic or endoscopic implantation by including features that facilitate assembly, specifically by forming from constituent arcuate members or petals that join with one another at a circular midpoint. Automated assembly is thereby facilitated with each longitudinal half including a “crown” of these arcuate members arranged in a cylindrical pattern with equally spaced curved points and overlapping ends. Molded arcuate members with integral hinges further enhance assembly and provide other advantages, especially when implanted with an applier capable of actuating the anastomotic ring device.

A biometric sensor can be disposed within a wearable finger ring. The ring device can provide a variety of different biometric and health measurements. The ring device can also be in communication with the Internet. Information from the ring device can be saved in the cloud, accessed by remote smart devices, accessed by remote computers, or otherwise accessed and saved. Various users, such as doctors and EMS personnel, can access the information provided by the ring device.

The invention relates to a device for generating essentially radial displacements and/or stresses of at least one mechanical part with respect to its X-X axis common with that of at least one other mechanical part functionally connected to the first one, said device comprising:

• • (I) a frame, a swivelling ring (11) and an internal ring producing two nested ball joint connections (a) and (b) with respective centres A and B, eccentric by a distance or value ε along said X-X axis common to the two rings in a position said to be neutral,
  • (II) one or more actuators in a barrel arrangement about the X-X axis for driving the mechanism, each actuator acting on the swivelling ring (11) via a guided push rod (3), and
  • (III) a guide ring (4) for guiding the push rods (3) via a bidirectional planar link (e),
  • while the swivelling rings (11, 13) are steerable by means of push rods (3) displaced by the actuators (2) and guided by the guide ring (4), and
  • while said swivelling rings are rotatable in their respective housings (a) and (b),

Application in particular for drilling trajectory control devices.

The present invention refers to an external container (1) for an implant carrier (20), comprising a cylindrical body portion (10) and a lid (50) closing the cylindrical body portion (10), the lid (50) being provided with a truncated cone-like element (74) which protrudes into the cylindrical body portion (10) and has on its surface at least one annular means (73) for fixing an implant carrier (20) into place which is adapted such as to fix the implant carrier (20) releasably into place in a stable position in the center of the interior of the cylindrical body portion (10).

The invention relates to a manufacturing method for high-strength low-elongation type dacron industrial yarn. The manufacturing method comprises compress flows of hyper-viscous melting of a dacron raw material, metering, yarn spraying, cooling, oiling, drawing, heat setting and winding forming. An adopted dacron slice is a hyper-viscous slice obtained by solid phase tackifying. A cooling device sequentially comprises slow cooling, pre-cooling, windless region cooling and air-blowing cooling, wherein the pre-cooling is initiative outer ring pre-cooling and refers to enabling hot air to be conveyed and flow through an initiative outer ring device so as to cool yarn strips. The initiative outer ring device is a hollow annular belt, the air passing area ratio of the initiative outer ring device is 20-50%, and the height is 30-80mm. The temperature of the hot air is 60-80 DEG C, the humidity is 60-80%, and the conveying speed is 0.2-0.8m/s. The obtained dacron filament has the advantages of being high in breaking strength, low in breaking elongation and linear density deviation rate and reasonable in dry heat shrinkage rate, and can meet the application requirements well.

The present invention discloses an augmented reality virtual keyboard input method and an apparatus using the same. The method comprises: according to a gesture action by which an operator locate a virtual keyboard or presetting, determining placing location and angle of the virtual keyboard; by an augmented reality technology, superposing the virtual keyboard into a real scene, so that the virtual keyboard induces the action of the operator; and analyzing the gesture action by which the operator operates the virtual keyboard to obtain an input result and feeding back the input result to an operating system or an application. An operation mode is simple. During inputting, a user does not need to make any voice and wear a ring device, and no integration of projection equipment is required. The method and the apparatus can adapt to various input gestures, and no training system is required. The method and the apparatus can be suitable for various devices which need keyboards to input information, such as mobile phones, single-chip microcomputer devices, intelligent furniture, intelligent electric appliances and computers, especially wearable devices that perform input by using keyboards and touch screens inconveniently, such as intelligent glasses. The method and the apparatus greatly expand the operation performance of an intelligent device during inputting by using the virtual keyboard.

A dog waste catcher and holder is a very simple, light-weight and economical portable device designed to catch and hold a dog's droppings before they fall on the ground or grass. It is carried by a dog's owner or caretaker while he or she walks the dog. This is a device comprised of a loop shaped device to hold a plastic bag, a carrying rod of which one end is attached to the loop shaped device, a securing device such as a bracket to attach the loop shaped device to one end of the carrying rod, and a plastic bag, preferably a plastic bag such as a grocery bag, etc. placed inside the loop shaped device with its upper portion folded over the loop and its ends tied to the rod where the loop shaped device is attached. As soon as the dog shows the motion to excrete, this device can be placed under the dog's bottom and catches the waste in the plastic bag as it excretes. Once the dog has finished excreting, the plastic bag is removed and discarded. This is a very simple and sanitary way of catching and discarding the dog waste.