摘要:
A manifold valve assembly for selectively interconnecting a row of ports to control the flow of fluid in the lines coupled thereto. The assembly includes a valve block in whose upper face is formed a shallow well. Extending from the well to a plane parallel to the lower face of the block is a row of cylinders whose lower ends define valve seats that communicate with ports projecting from the lower face. A channel indented in the well serves to laterally interconnect the mouths of the cylinders with each other. Seated in the well and sealing the mouths of the cylinders is a pad of elastomeric material from which is projected a row of hollow, axially-expandable nipples that extend into and are coaxially disposed within the cylinders, the nipples all having a normal length that falls short of the valve seats. Mounted above the valve block is an actuator block having a row of tubes therein in axial alignment with the cylinders. Supported in each tube is the retractable push rod of a spring-biased click mechanism. The lower end of each rod protrudes into a respective nipple, the upper end thereof being coupled to a normally-raised push-button. The arrangement is such that when a given button is pressed in, the push rod associated therewith is advanced axially to a degree limited by the click to cause the associated nipple to expand and engage the valve seat, thereby closing the valve. When this same button is again pressed in, the click is released to cause the rod to retract and thereby open the valve, the button then being returned to its raised position. Thus by operating the buttons, one may select the valves to be opened or closed and thereby connect the lines associated with the ports in any desired manner.
摘要:
Formulations of praziquantel are used to locally treat female genital schistosomiasis. The formulations can be applied to the upper or lower female genital tract, depending on the location of the infection. Thick or viscous formulations can be used advantageously in the vagina. Solutions of active ingredient can be instilled in the uterus.
摘要:
A method of forming and the resulting membrane composition for securement to a patient's bone or tissue to reduce the formation of tissue adhesions following a surgical procedure comprises a first component and a second component. The first component comprises a hydrogel including at least one crosslinked polymer. The second component comprises a textile component. The composition has a thickness between about two tenths of a millimeter (0.2 mm) to about six tenths of a millimeter (0.6 mm), a suture retention strength between about one Newton (1 N) to about thirteen Newtons (13 N), a static coefficient of friction between about one hundredth (0.01) and about one-half (0.5), a kinetic coefficient of friction between about one hundredth (0.01) and about one-half (0.5) and a flexibility of less than thirty millimeters (30 mm) bend length. A method of reducing the occurrence of tissue adhesions following surgery comprises applying the membrane composition to a surgical site.
摘要:
A neutron detection system may include a volume of neutron moderating material, and a plurality of solid state neutron detection devices disposed within the volume of neutron moderating material, wherein some of the neutron detection devices suitable for transduction of primary reaction products resulting from a neutron interaction event, wherein some of the solid state neutron detection devices include two or more solid state neutron detection elements, and wherein the solid state neutron detection elements are configured for omnidirectional detection of impinging neutrons.
摘要:
A paint dispenser for dispensing paint components such as colorants and possibly base into 5 gallon and 1 gallon containers is disclosed. The paint dispenser includes a cabinet for accommodating a plurality of colorant and optionally base canisters in communication with a common dispense outlet. The canisters may be connected to individual pumps which, in turn, are connected to a dispense outlet. A container shelf unit is disposed in front of the cabinet and below the dispense outlet. The shelf unit includes a base including a plurality of rollers particularly suitable for supporting and moving 5 gallon pails of paint. The base is disposed below the dispense outlet a first vertical distance sufficient to permit the 5 gallon cylindrical containers to be disposed on top of the rollers and below the dispense outlet without engaging the dispense outlet. The shelf unit further a pivoting shelf being pivotally connected to the cabinet above the base. The pivoting shelf pivots between a first vertical position where the shelf is flat against the vertical cabinet thereby enabling a 1 gallon pail to be disposed on top of the rollers and below the dispense outlet.
摘要:
The present invention relates to a surgical method or procedure for securing a prosthesis to bone. More particularly, the present invention relates to (i) a surgical method or procedure for securing a low load bearing prosthesis such as, for example, an adhesion barrier, to a patient's bone, (ii) a tack or drive screw for securing the low load bearing prosthesis and (iii) associated instrumentation for driving the tack or drive screw into the patient's bone.
摘要:
An apparatus for lifting planar objects which includes an extendable rectilinear elongated frame formed of at least two spaced U-beams, each U-beam defining a longitudinal runway and having an elongated area removed from a forward face below a midpoint of the frame. The removed elongated area defines an entranceway to the longitudinal runway. The entranceway is dimensioned to receive the planar object for placement on a transport carriage while maintaining a top portion of the planar object within the longitudinal runway. The carriage is configured to laterally span the two spaced U-beams such that a portion of the carriage and a portion of the planar object are confined within each interior longitudinal runway at least during transport. A skid is perpendicularly joined to a forward face of the carriage at about its bottom edge. The skid is configured to support the planar object during placement and lifting. A pull cable is affixed at one end to the carriage at about a midpoint of a lateral dimension and in proximity to a top edge of the carriage. A first cross member is laterally joined to a top of the frame which includes a pulley aligned such that the pull cable when in communication with the pulley and affixed to the carriage are aligned along a common longitudinal centerline between the two spaced U-beams. A second cross member is likewise laterally joined to the frame in proximity to the entranceway. A winch is connected to an opposite end of the pull cable and configured to move the carriage and planar object through the longitudinal runways.
摘要:
A bus system, such as an internal bus system located within a digital device, is disclosed herein. The bus system comprises a plurality of master buses, each master bus connected to at least one master. The bus system also comprises a multi-bus interface connected to the plurality of master buses and a slave bus connected to the multi-bus interface. The multi-bus interface enables one master bus at a time to access the slave bus. Also disclosed herein are bus structures and methods for interfacing between master buses and slave buses.
摘要:
A clamping mechanism and method are disclosed for a mixing machine that detects when the upper clamping member engages the tops or lids of the containers loaded into the mixing machine. The disclosed clamping mechanism includes a lower base and an upper plate defining an adjustable clamping distance disposed therebetween. At least one of the lower base and upper plate is moveable to increase or decrease the clamping distance. The upper plate is pivotally connected to a cross member so the upper plate is at least partially pivoted away from the cross member when nothing is clamped between the upper plate and lower base. At least one of the cross member and upper plate is associated with a sensor. The sensor is linked to a controller, which controls the movement of the upper plate or the lower base (or both) for clamping and unclamping articles disposed on the lower base. The sensor is activated and sends a signal to the controller when the upper plate has been pressed against the cross member by a top surface of an article clamped between the upper plate and lower cross member under movement controlled by the controller.