Abstract: A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots, and an input shaft (228) coupled to the rotor for applying a torque to the rotor. The pump assembly (100) also includes a prime mover (400) for generating a torque and a magnetic coupling unit (300) for magnetically transferring the torque generated by the prime mover to the input shaft. The vanes may have a leg (256) which extends radially inward from a blade (254). The rotor and input shaft may be integrally formed.

Abstract: A rotary vane pump (200) for pumping a fluid. The rotary vane pump includes a pump housing (206 and 208) and a rotor having a plurality of dividing members (232) and a plurality of slots (226) disposed between adjacent dividing members. The rotary vane pump also includes a plurality of strengthening members (240), each strengthening member disposed in one of the plurality of slots and coupled to adjacent dividing members. The rotary vane pump also includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots.

Abstract: The invention described herein provides for novel nitric oxide-releasing polymers that comprise at least two adjacent units derived from acrylonitrile monomer units and containing at least one carbon-bound diazeniumdiolate. The diazeniumdiolated acrylonitrile-derived polymers can be used in medical devices therapeutically. Accordingly, the invention also provides a method of treating a biological disorder and a method of promoting angiogenesis that includes administering a medical device comprising a nitric oxide-releasing polymer comprising at least two adjacent units of acrylonitrile before exposure to nitric oxide and at least one nitric oxide releasing N2O2— group, wherein the N2O2— group is attached directly to the polyacrylonitrile backbone, to a specific location on or within the mammal in an amount effective to treat the biological disorder or promote angiogenesis.

Abstract: A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots, and an input shaft (228) coupled to the rotor for applying a torque to the rotor. The pump assembly (100) also includes a prime mover (400) for generating a torque and a magnetic coupling unit (300) for magnetically transferring the torque generated by the prime mover to the input shaft. The vanes may have a leg (256) which extends radially inward from a blade (254). The rotor and input shaft may be integrally formed.

Abstract: A rotary vane pump (200) for pumping a fluid. The rotary vane pump includes a pump housing (206 and 208) and a rotor having a plurality of dividing members (232) and a plurality of slots (226) disposed between adjacent dividing members. The rotary vane pump also includes a plurality of strengthening members (240), each strengthening member disposed in one of the plurality of slots and coupled to adjacent dividing members. The rotary vane pump also includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots.