Abstract: A hemodialysis needle assembly and system that includes a first outer needle having a conical tip and a sidewall where the sidewall has a plurality of apertures located adjacent the tip, a second introducer needle located within the outer needle, a guide wire located within the introducer needle, and a spring motor removably secured to the outer needle. The introducer needle and the guide wire are inserted into a patient's vein and the spring motor releases the outer needle into the vein after the introducer needle and the guide wire are properly placed within the patient. The introducer needle, the guide wire, and the spring motor are removed from the patient after the outer needle is in place within the vein.

Abstract: Methods, systems, and articles of manufacture consistent with certain principles related to the present invention enable a computing system to manage the delivery of web content based on historical site visit data and revenue optimization processes. In one aspect consistent with certain features related to the present invention, a publisher may provide ad campaigns that target various criteria. The publisher may be configured to allocate impressions of web content based on forecasted site visits and impressions for future months. The impression allocations may be adjusted based on overlapping targeting criteria between the campaigns and a prediction of whether a campaign may reach an impression goal before the expiration of the campaign's run period. The impression allocations are also adjusted by expected revenue from clicks and revenue per impression for different campaigns.