摘要:
In a membrane probing apparatus, the impedance of the interface between coaxial cables connected to the test instrumentation and the membrane supported co-planar waveguide that conductively connects to the probe's contacts is optimized by eliminating a ground plane in the interface board.
摘要:
A system and method for repositioning a patient. The system comprises a first layer that is liquid impermeable and vapor permeable. The system also comprises a second layer that has a tensile strength that is greater than the first layer. The tensile strength of the second layer is sufficient to allow the system to lift a person being repositioned. The system also comprises a plurality of handles distributed around the sheet.
摘要:
A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rearward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam. In an alternative embodiment, the contacts comprise conductive beams each supported on a loose U-shaped flap formed in the membrane assembly where each flap and beam is tiltably supported in inclined position by an elastomeric hub interposed between the flap and support.
摘要:
A probe station includes a fully guarded chuck assembly and connector mechanism for increasing sensitivity to low-level currents while reducing settling times. The chuck assembly includes a wafer-supporting first chuck element surrounded by a second chuck element having a lower component, skirting component and upper component each with a surface portion extending opposite the first element for guarding thereof. The connector mechanism is so connected to the second chuck element as to enable, during low-level current measurements, the potential on each component to follow that on the first chuck element as measured relative to an outer shielding enclosure surrounding each element. Leakage current from the first chuck element is thus reduced to virtually zero, hence enabling increased current sensitivity, and the reduced capacitance thus provided by the second chuck element decreases charging periods, hence reducing settling times. With similar operation and effect, where any signal line element of the connector mechanism is arranged exterior of its corresponding guard line element, such as adjacent the chuck assembly or on the probe-holding assembly, a guard enclosure is provided to surround and fully guard such signal line element in interposed relationship between that element and the outer shielding enclosure.
摘要:
A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rewarward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam. In an alternative embodiment, the contacts comprise conductive beams each supported on a loose U-shaped flap formed in the membrane assembly where each flap and beam is tiltably supported in inclined position by an elastomeric hub interposed between the flap and support.
摘要:
A membrane probing assembly includes a support element having an incompressible forward support tiltably coupled to a rearward base and a membrane assembly, formed of polyimide layers, with its central region interconnected to the support by an elastomeric layer. Flexible traces form data/signal lines to contacts on the central region. Each contact comprises a rigid beam and a bump located in off-centered location on the beam, which bump includes a contacting portion. After initial touchdown of these contacting portions, further over-travel of the pads causes each beam to independently tilt locally so that different portions of each beam move different distances relative to the support thus driving each contact into lateral scrubbing movement across the pad thereby clearing away oxide buildup. The elastomeric member backed by the incompressible support ensures sufficient scrub pressure and reliable tilt recovery of each contact without mechanical straining of the beam. In an alternative embodiment, the contacts comprise conductive beams each supported on a loose U-shaped flap formed in the membrane assembly where each flap and beam is tiltably supported in inclined position by an elastomeric hub interposed between the flap and support.
摘要:
A hydrotherapy mattress assembly which includes an air-over-foam core, a base for receiving the air-over-foam core, and a top cover overlying the air-over-foam core. The top cover provides a patient support surface and includes a drain trough. The drain trough is coupled to a drain which extends through the air-over-foam core and the base, so that liquids can be drained from the patient support surface.
摘要:
A reversible taillight assembly that can be used on either the right or left side of a vehicle. The taillight assembly includes a lens housing, a bracket, a lens and a spring clip. The lens housing has a parabolic configuration and accepts a lens at either its left or right hand side. The bracket can be used on either the right or left hand side of the vehicle by simply rotating the bracket 180.degree.. The lens fits within the lens housing after removing the portion of the front face of the lens housing depending upon which side the assembly is attached to. A method for reversing the taillight assembly is also provided. The method contains the steps of rotating the taillight fixture 180.degree. about its z-axis, replacing a first lens portion, removing a second lens portion, and placing a lens in the lens housing. The lens will be placed in the hole that remains from the removal of the second lens portion.
摘要:
A probe station is equipped with an integrated guarding system which facilitates the use of the station for low-current measurements, as well as integrated Kelvin connections to eliminate voltage losses caused by line resistances. The station has a chuck assembly which consists of at least three chuck assembly elements. A first element supports the test device, while an underlying second element acts as a guard to reduce leakage currents. These elements are electrically insulated from each other and from their underlying supporting structure, which is the third element. Ready-to-use, selectively detachable electrical connector assemblies provide for signal and guard connections to the first and second chuck assembly elements, respectively, as well as providing Kelvin connections thereto. The capacitance between the respective chuck assembly elements is extremely low due to the provision of air space as the primary electrical insulator. Unique electrical connectors for individually-positionable probes provide both guarding and Kelvin connection capability together with separate EMI shielding movable in unison with each probe individually.
摘要:
An apparatus and method for managing waste from patient care, maintenance, and/or treatment includes an inflatable bladder member disposed to support at least a first portion of the body of the patient. A flexible basin member is fitted over the bladder and receives waste materials, and a filter sheet is disposed atop the basin member. The basin member is connected to a holding reservoir and a vacuum blower. A liquid waste pump is connected to the holding reservoir to transfer liquid waste to a waste jug. A vacuum wand provides rinsing liquid from a rinse liquid jug via a rinse liquid pump and provides suction via the vacuum blower. Liquid levels in each of the rinse liquid jug, the waste jug, and the holding reservoir, are monitored by liquid level sensing devices which supply signals to a microprocessor which controls various functions of the apparatus. Special inflatable sacks are provided to assist turning the patient to facilitate cleansing of the patient. Inflatable cushions receive the inflatable bladder member and dispose it to become coextensive with the support of the rest of the patient in a patient support apparatus, if desired.