Patents Assigned to Allon Laboratories, Inc.
  • Patent number: 4850377
    Abstract: There is disclosed herein a system for providing control of multiple functions needed to perform eye surgery. A microprocessor based system controls a vacuum generation system using venturis and linear valves and a pneumatic system for driving vitrectomy probes and pneumatic scissors in either a variable frequency, multicut mode or a proportional cut mode where the cutting pressure is proportional to the position of a foot operated position sensor.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: July 25, 1989
    Assignee: Allon Laboratories, Inc.
    Inventors: Donald A. Parker, Wayne W. Rogers
  • Patent number: 4790816
    Abstract: There is disclosed herein a system for providing control of multiple functions needed to perform eye surgery. A microprocessor based system controls a vacuum generation system using venturis and linear valves and a pneumatic system for driving vitrectomy probes and pneumatic scissors in either a variable frequency, multicut mode or a proportional cut mode where the cutting pressure is proportional to the position of a foot operated position sensor. The frequency of the vitrectomy probe cutting action can also be controlled and the level of vacuum can be controlled from a foot operated position sensor which can also be used to turn on or off a fragmentation device. The footswitch can also be used to turn irrigation fluid on or off, and the flow rate can be controlled from a control on the front panel. By making a certain foot motion in any certain aspiration modes, reflux of the aspiration line can be controlled.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: December 13, 1988
    Assignee: Allon Laboratories, Inc.
    Inventors: Leif J. Sundblom, Daniel D. Rogers