Patents by Inventor Richard Wademan Teasdale

Richard Wademan Teasdale has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tip cover for appellation tonometer
    Publication number: 20040236204
    Abstract: For calculating the intraocular pressure (IOP) of an eye, an applanation tonometer comprises an applanator formed of an optics array, a force transducer, an image sensor, and a processing circuit configured to calculate an intraocular pressure of the eye using one or more pairs of measured force and applanated area. The tonometer is provided with a disposable tip that covers the applanator, thereby providing a replaceable, sterile and transmissive interface between the tonometer's applanator and a patient's eye. Preferably, the applanating surface has a matte finish. The tonometer calculates the intraocular pressure using a predetermined relationship between interocular pressure and the slope of the line defined by data relating to the forces required to applanate the eye and the geometry of applanated portions of the eye. In a preferred embodiment, the data acquisition is synchronous.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Applicant: Marco Opthamalmic, Inc.
    Inventors: Steven E. Feldon, Bruce Allen Burr, Richard Wademan Teasdale, Gregory John Netherwood
  • Applanation tonometer
    Patent number: 6776756
    Abstract: For calculating the intraocular pressure (IOP) of an eye, an applanation tonometer comprises an applanator formed of an optics array, a force transducer, an image sensor, and a processing circuit configured to calculate an intraocular pressure of the eye using one or more pairs of measured force and applanated area. The tonometer is provided with a disposable tip that covers the applanator, thereby providing a replaceable, sterile and transmissive interface between the tonometer's applanator and a patient's eye. Preferably, the applanating surface has a matte finish. The tonometer calculates the intraocular pressure using a predetermined relationship between interocular pressure and the slope of the line defined by data relating to the forces required to applanate the eye and the geometry of applanated portions of the eye. In a preferred embodiment, the data acquisition is synchronous.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: August 17, 2004
    Assignee: Marco Ophthalmic, Inc.
    Inventors: Steven E. Feldon, Bruce Allen Burr, Richard Wademan Teasdale, Gregory John Netherwood
  • Applanation tonometer
    Publication number: 20020173712
    Abstract: For calculating the intraocular pressure (IOP) of an eye, an applanation tonometer comprises an applanator formed of an optics array, a force transducer, an image sensor, and a processing circuit configured to calculate an intraocular pressure of the eye using one or more pairs of measured force and applanated area. The tonometer is provided with a disposable tip that covers the applanator, thereby providing a replaceable, sterile and transmissive interface between the tonometer's applanator and a patient's eye. Preferably, the applanating surface has a matte finish. The tonometer calculates the intraocular pressure using a predetermined relationship between interocular pressure and the slope of the line defined by data relating to the forces required to applanate the eye and the geometry of applanated portions of the eye. In a preferred embodiment, the data acquisition is synchronous.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 21, 2002
    Applicant: Marco Ophthalmic, Inc.
    Inventors: Steven E. Feldon, Bruce Allen Burr, Richard Wademan Teasdale, Gregory John Netherwood