摘要:
A sparker array includes a plurality of sparker sources of sound and light emissions, the plurality of sparker sources arranged in a geometric pattern with respect to a region, the array configured to deliver a maximal acoustic output to the region. Sparker sources may include reflectors. A single electrical source to drive a sparker array may be employed. A sparker system may include two or more sparker arrays. A time delay may be employed to trigger electrical circuits of the sparker arrays. Sparker arrays may be used to deliver shock waves with increased operational life, consistency and efficacy for specific applications.
摘要:
A reflector employs materials and design features that can transfer both light and sound emission simultaneously, from sources to planes or volumes, in an efficient and controlled manner. Compound orthogonal parabolic reflectors employ an extension onto conventional orthogonal parabolic reflectors to efficiently deliver light and/or sound to a focal volume or surface. The extension shapes the output, and can provide inflow and outflow to the focal region, along with a brush. Pulsed sources may be employed, which may emit light, sound or both light and sound, may erode and may be wire initiated with the wire replaced after each pulse by a wire feed.
摘要:
An impulsive acoustic and radiation source is provided that maintains a constant electrode gap to provide efficient and long life operation. In one implementation the electrodes have a “toaster” arrangement. In another implementation the electrodes have a double annulus arrangement. The electrode gap may be maintained by interposing a non-electrically conducting material between the electrodes. In another implementation the electrode gap is maintain by the insertion of electrodes into a base. Also, the electrodes may be coated with a non-electrically conduction material. In alternative implementation, efficient and long life operation is achieved by feeding a material between widely spaced electrodes. In certain implementations an exothermic material is fed to increase the strength of the impulse from the sparker. Also, reflectors and enclosures are employed that increase the output utilization of the source.
摘要:
A high intensity surface discharge pulsed light source system includes a dielectric substrate, a first electrode near the dielectric substrate, a second electrode spaced from the first electrode and near the dielectric substrate, with containment for a discharge gas. The system is electrically powered and cooled from a single end. The discharge volume is sealed from the environment for long operational life, and the surface material chosen to allow for high intensity operation. Reflective coatings are employed to increase the light available for practical use. A pulsed electric discharge circuit provides practical operation for long and safe operation.
摘要:
A reflector employs materials and design features that can transfer both light and sound emission simultaneously, from sources to planes or volumes, in an efficient and controlled manner. Compound orthogonal parabolic reflectors employ an extension onto conventional orthogonal parabolic reflectors to efficiently deliver light and/or sound to a focal volume or surface. The extension shapes the output, and can provide inflow and outflow to the focal region, along with a brush. Pulsed sources may be employed, which may emit light, sound or both light and sound, may erode and may be wire initiated with the wire replaced after each pulse by a wire feed.
摘要:
A catheter assembly according to the present invention includes a handle assembly, an introducer sheath, and a distal tip assembly. The distal tip assembly can include first and second retaining sleeves and a slotted tip with a non-traumatic tip guard positioned at the proximal end of the slotted tip. The handle assembly can include a fixed main handle and two or more rotating handles that allow a user to control the distal tip assembly of the catheter. Each control knob on the handle assembly controls a portion of the components on the distal by of the catheter by allowing for precise manipulation of various delivery shafts. Each delivery shaft extends from the handle assembly to respective positions towards the distal end of the catheter.
摘要:
Catheter assemblies including a handle assembly located on the proximal end of the catheter assembly and a distal tip assembly located on the distal end of the catheter assembly. A crimping funnel is slidably positioned along the catheter. The crimping funnel includes a distal end having a first diameter and a proximal end having a second diameter smaller than the first diameter. An axial split is formed in the proximal end. A first collar is provided encompassing a portion of the proximal end. The first collar is configured to hold the axial split in the proximal end together when the first collar is at a first axial location along the proximal end, and to allow the axial split in the proximal end to open when the first collar is at a second axial location along the proximal end, such that the crimping funnel can be removed from the catheter assembly. Various methods of retaining a prosthetic valve on the catheter assembly during the crimping process are described.
摘要:
An apparatus to detect a pressure signal in a fluid flowing in a conduit comprises a flexible band sized to fit at least partially around the conduit. An optical fiber is flexibly adhered to the flexible band. At least one fastener is attached to the flexible band to fasten the flexible band at least partially around the conduit. A method for detecting a pressure signal in a conduit comprises adhering an optical fiber to a flexible band. At least one fastener is attached to the band. The band is fastened around the conduit such that a strain induced in the conduit by the pressure signal is transmitted to the optical fiber.
摘要:
A releasable connector assembly comprising a socket body 2 and a plug body 3. The socket body 2 has a set of channels 15 formed therein and the plug body 3 having a corresponding set of radial tabs 7 formed thereon, the channels 15 forming a keyway for the tabs 7 such that load bearing projections 5, 14 on the bodies are releasably engageable in the manner of a bayonet coupling. The assembly is characterised in that a set of locking pins are provided on the socket member that are extendable into the channels 15 so as, in use, to trap the tabs 7 in undercuts 15k of the channels 15, thereby preventing unintentional release of the plug 3 from the socket 2, and retractable from the channels 15 so as to enable release of the plug 3 from the socket 2.
摘要:
A method of categorizing fasteners and construction connectors by size and type using a color coding system. Each fastener receives a designated and distinct color contained on the surface that is exposed before and after installation. The colors are preselected to define one or more physical properties of the fasteners. A color key is provided to determine the physical properties of the fasteners based on the coloring of exposed portions of the inserted fasteners. Similarly, construction connectors receive a designated and distinct color contained on the surface that is exposed before and after installation. The color represented on the surface of the construction connector is such that the corresponding fastener is the same color.