Having Means For Metering Liquid Flow To Eye Patents (Class 604/298)
  • Patent number: 4623337
    Abstract: An apparatus (10) for the repetitive dispensing of a predetermined quantity of eyedrops (12) has a cylinder (14) with a restricted opening (18) at a first end (16). A plunger (20) attached to rod (23) extends into the cylinder (14) from end (22). Biasing member (28) has a ramped cam surface (32) incorporating a pair of steps (46), actuating member (26) has an opposed surface (30) with a projection (44) which rides on ramped cam surface (32) and drops off step (46) when actuating member (26) is rotated. Rotation of the actuating member (26) also advances the actuating member (26) on threaded member (24). Spring (42) biases surfaces (30) and (32) together. A projection (44) drops over each step (46), plunger (20) is moved incrementally toward end (16) of cylinder (14) to discharge eyedrops (12) through opening (18 ). A disposable cartridge (50) may be substituted for the cylinder (14).
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: November 18, 1986
    Assignee: Alpha Group, Inc.
    Inventor: David M. Maurice
  • Patent number: 4553686
    Abstract: An improved drop dispenser for use with a closed compressible container, which dispenser is comprised of a small diameter tubular dispenser member of a resilient plastic material deformed at the free end thereof to provide a normally closed, integral valve-like arrangement, which valve-like arrangement is pressure actuated and partially opens when pressure within the container increases.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: November 19, 1985
    Assignee: St. Luke's Hospital
    Inventor: Delford O. Dougherty
  • Patent number: 4386608
    Abstract: The disclosure is of eye irrigating apparatus comprising a scissors mechanism having two blades, between which a tubular body is positioned, through which an irrigating fluid can flow into the eye from a fluid source.
    Type: Grant
    Filed: July 15, 1981
    Date of Patent: June 7, 1983
    Inventor: Kenneth B. Ehrlich