摘要:
A method of sizing of a stent graft (20) including placement of fenestrations (30, 32) to ensure access to side branch vessels (13, 15) through the fenestrations when the stent graft is introduced into a body vessel and an assembly method for a stent graft including temporary diameter reduction arrangements to enable partial release of a stent graft to assist with positioning of fenestrations with respect to side branch vessels. The method includes spacing the fenestrations to be the same circumferential distance as the side branch vessels irrespective of the diameter of the stent graft.
摘要:
An expression vector for expressing a target polypeptide in a prokaryotic cell is provided. The vector comprises a promoter operably linked to a polynucleotide encoding the target polypeptide operably linked to a eukaryotic secretion leader sequence, the eukaryotic secretion leader sequence encoding a signal peptide sequence selected from the group consisting of: a) MLKRSSWLATLGLLTVASVSTIVYA; b) MKKATFITCLLAVLLVSNPIWNA; c) MKVSAAALAVILIATALCAPASA; d) MKVSTAFLCLLLTVSAFSAQVLA; and e) MKCLLLALGLALACAAQA. Processes for expressing polypeptides and prokaryotic microorganisms comprising such vectors are also provided.
摘要:
A stent graft (1) including a tubular wall (3) with at least one fenestration (40) including a peripheral (37) reinforcement around at least part of the fenestration. There can also be a tubular extension (15). The side arm includes a stent (19) and a cover (17) and extends from and is in fluid communication with the fenestration and the stent graft. The stent may be a self expanding stent. The ring and/or tubular extension provides better support and sealing for an extension arm. The fenestration (40) can be circular or if towards the ends of the stent graft may be in the form of a U-shape (50) with an open end.
摘要:
An apparatus and method for ink-jet printing on a recording medium is provided which includes the steps of jetting aqueous ink drops on paper in the form of an image. The aqueous ink used is a slow-drying (high-surface tension) ink which does not penetrate the paper/paper fibers for a relatively long time. Prior to penetration of the paper/paper fibers, the water in the droplet is quickly evaporated from the ink while still resident on the paper surface. The evaporation process is substantially completed prior to an additional liquid ink being jetted onto the same or adjoining location of the recording medium. The evaporation is rapid enough to prevent the resident ink from substantially migrating/wicking to any adjacent location or into the recording medium. Further the drying energy is transferred to the resident ink spots from the same direction as the printheads ensuring less energy requirement.
摘要:
A method is provided for processing a number of "L"-shaped sections within a flat strip to form terminals extending from a component. In the strip, these sections are attached to a web by connecting portions. A number of such sections are simultaneously processed within various stations through which the strip is incrementally fed. These connecting portions are first twisted, so that each "L"-shaped section in the number of such sections extends in a plane perpendicular to the web. Next, these connecting portions are deflected so that outward extending legs of the sections extend in a direction needed for insertion into an electronic component structure. Then, these connecting portions are sheared, as each "L"-shaped section separated from the strip is placed in a slot within a receptacle block. Then, the receptacle block is slid to insert the "L"-shaped sections.
摘要:
A record and related method is provided for storing encoded information comprising a storage media, first marks on the storage media having a covert code characteristic, with the first marks conveying a covertly marked code and second marks preferably having an overt code characteristic which convey a second overtly marked code useful in decoding the covertly marked code.
摘要:
A nut and bolt securing device is disclosed to prevent loosening of the assembly due to environmental conditions. In a first version of the invention the two piece device is fitted over a nut and a portion of a bolt extending from the nut, the two sections of the device being secured together with set screws, with serrations within the device, and one or more set screws engaging the front end of the device. In a second version of the device a shelf like planar projection on the front end of the device engages a planar surface on a nut, again combining with the serrations within the device to prevent fastener loosening. The device is particularly described in use in conjunction with refrigerant system flare nuts so as to prevent loss of refrigerant at these flare nut unions.
摘要:
A fluid tight flare nut union is described. Flare nut unions are convenient to install in systems, such as refrigeration systems, and are generally reliably fluid tight. Leaks can occur over time, however, due to environmental stress conditions. Deformable ferrules, in combination with compression nut assemblies, either singly, or redundantly, or in counter rotation redundant assembly, secure the flare nut to the fluid transfer tubing in a locking relationship which prevents the loosening of the flare nut-flare connection with subsequent fluid leakage due to these environmental stresses. Enclosing the complete assembly in water proof insulating material, further insures virtually leak proof operation of the improved flare nut union.
摘要:
An introduction arrangement for a fenestrated or branched stent graft (13) intended for deployment into the lumen of a vessel having a blind vessel extending from it. The introducer (1) has a distal end intended to remain outside a patient in use and a proximal end with a nose cone dilator (11) and an arrangement to retain the branched stent graft distally of the nose cone dilator. A sheath (15) on the introducer extends over the branched stent graft to the nose cone dilator. An indwelling catheter (22) extends from the distal end of the introducer and enters the fenestration or side arm and through to the nose cone dilator, the indwelling catheter has a guide wire (29) extending through it. The guide wire can be extended beyond the nose cone dilator in use before the sheath is withdrawn from the branched stent graft so that it can be snared from the contra-lateral artery.
摘要:
An automated pipetting apparatus and method for forming sample spots on a support include a pipette. A robotic assembly moves a sample container, such as a multiwell microtiter plate, and the support to the pipette for receiving and dispensing liquid samples. The pipette draws a predetermined volume of the liquid sample from the sample container into the axial passage of the pipette and forms a pocket of a gaseous material above and forms a barrier material below the volume of the liquid sample. The liquid sample is drawn into the pipette a distance sufficient to form a space between the liquid sample and the outlet of the pipette and to contain the liquid sample completely within the pipette. The volume of the barrier material, which is typically air or other fluid, separates the liquid sample a suitable distance from the outlet end of the pipette to prevent the liquid sample from flowing outward under gravity and being drawn along the outer surfaces of the pipette by the surface tension of the liquid, thereby preventing or inhibiting evaporation and preventing deposits from forming on the outer surface of the pipette. The pipette dispenses the liquid sample with sufficient force so that substantially the entire volume of the liquid sample is dispensed from the pipette directly onto the support. The support can be, for example, a sample plate of a MALDI mass spectrometer. The pipette deposits the liquid samples to form sample spots on the sample plate for analysis by the mass spectrometer.