摘要:
A medical pump with an improved continuity low flow delivery system and method for use with a pumping chamber, for example in a cassette, is disclosed. The pump includes a pump drive for exerting a force on the pumping chamber and a sensor for sensing the force/pressure exerted by the pump drive on the pumping chamber. The pump drive position sensor senses the position of the pump drive. The medical pump also includes a processing unit and a memory having a programming code adapted to calculate the rate of change of the sensed force/pressure values and determine whether the rate of change of the sensed force/pressure values meets a rate of change threshold. Once the rate of change threshold is met, the programming code is adapted to calculate a remaining pump drive travel value for determining how much farther the pump drive should travel before the end of an effective pump cycle. The programming code is further adapted to trigger one or more signals to drive the pump drive for the remainder of the effective pump cycle using the remaining pump drive travel value.
摘要:
A medical pump with a closed loop stroke feedback system and method, for use with a pumping chamber, for example in a cassette, is disclosed. The pump includes a pumping element that intermittently pressurizes a pumping chamber during a pumping cycle. A pressure sensor detects the pressure exerted by the pumping element on the pumping chamber. A position sensor detects the position of the pumping element. A processing unit processes pressure data from the pressure sensor and position data from the position sensor to determine a calculated stroke volume of the pump for a pump cycle, and to adjust a stroke frequency of the pump to compensate for variation in the stroke volume.
摘要:
Method and computer program product for presenting a set of address locations in a browser window of a user device via the Internet are disclosed. The method includes receiving a set of address locations in a given order, presenting the set of address locations as a list of directions, and presenting the set of address locations graphically on a map, where the map includes a route connecting the set of address locations according to the given order and a marker for each of the address locations. The method further includes creating a new order of the set of address locations from the given order by dragging an address location from the map to a different position in the list of directions, updating the list of directions according to the new order of the set of address locations, and updating the map according to the new order of the set of address locations.
摘要:
Method and computer program product for navigating a map in a browser window of a user device via the Internet are disclosed. The method includes providing a first map for showing geographic context of a general area, providing a second map for showing geographic context of a portion of the general area, superimposing the second map onto the first map, wherein the second map is represented by a highlighted area in the first map, and navigating the first map using the highlighted area. The method further includes displaying points of interest inside the highlighted area of the first map and in the second map for assisting a user in navigating to the points of interest, and displaying additional points of interest outside the shaded area of the first map for assisting a user in navigating to the additional points of interest.
摘要:
Various sulfonamide-based compounds are able to selectively inhibit the Src family of tyrosine kinases. These compounds are useful in the treatment of various diseases including hyperproliferative diseases, hematologic diseases, osteoporosis, neurological diseases, autoimmune diseases, allergic/immunological diseases, or viral infections.
摘要:
Various thienopyrimidine-based analog compounds that selectively inhibit the Src family of tyrosine kinases. These compounds are thienopyrimidines and contain a hydrozone bridge created by heating a thienopyrimidine hydrazine with an aldehyde in ethanol at reflux. Such compounds are useful in the treatment of various diseases including hyperproliferative diseases, hematologic diseases, osteoporosis, neurological diseases, autoimmune diseases, allergic/immunological diseases, or viral infections.
摘要:
A pressure sensor assembly includes two spacedly positioned flexible supports which support an elongated rod, with one end of the elongated rod contacting a pressure detector section on a disposable pumping cassette; the pressure sensor assembly can detect pressures in the cassette both above and below atmospheric (i.e., zero psig); when pressure changes in the cassette, the pressure detection section causes axial movement of the rod and the rod, in turn, flexes the two flexible supports. Position detection means associated with one of the two supports monitors the flexural movement of the one support, providing an indication of the pressure within the cassette.
摘要:
An ultrasonic sound generator and receiver are spaced apart from each other so as to receive a projecting portion of a cassette in which a liquid carrying passage is defined by a flexible membrane. The liquid carrying passage in the projecting portion fits between the ultrasonic sound generator and receiver, with opposite sides of the flexible membrane in contact with the sound generator and sound receiver. The sound generator and sound receiver each comprise a substrate having a layer of conducting material. Two electrically isolated regions are defined on the conductive layer, and a piezoelectric chip is electrically connected between the two regions. An electrical signal applied between the first and second regions excites the piezoelectric chip on the sound generator, causing it to generate an ultrasonic signal, which is transmitted through the liquid carrying passage. If liquid is present in the passage, the amplitude of the ultrasonic sound signal received by the piezoelectric chip on the sound receiver is substantially greater than when liquid is absent in the passage. The ultrasonic detector thus produces a signal indicative of liquid in the liquid carrying passage.
摘要:
An ultrasonic detector for detecting air in a fluid. A fluid pumping cassette includes an elastomeric member that defines three sides of a fluid passageway, a base of the cassette defining the other side. Resilient lobes on the elastomeric member extend outwardly in opposite directions on each side of the passageway, directly contacting an ultrasonic sound generator on one side and a piezoelectric sound receiver on the opposite side, the direct contact enhancing transmission of an ultrasound signal through the elastomeric member to facilitate detection of an air bubble in the fluid passage.
摘要:
Systems and methods for creating, managing and optimizing online advertising campaigns include groups of independent human resources working through a marketplace to suggest and optimize appropriate choices for how, where and how much to pay for online advertising. Optimization is achieved through the use of market-based incentives that pay participants based on the quality, quantity and efficiency of the results of their suggestions. The systems and methods enable a marketplace that leverages the inherent knowledge of a large group of people to come up with all search terms, placements, targeting and advertisements that might be relevant to a product, and determine the optimal auction prices for these search terms, placements, targeting and ads on the search engine systems.