Patents by Inventor Johan T. W. Van Dalen

Johan T. W. Van Dalen 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).

  • Patent number: 9384681
    Abstract: A model newborn human eye which includes a hemispherical-shaped, integrally molded top assembly comprising a visually transparent cornea portion surrounding a visually opaque sclera portion in combination with a hemispherical-shaped bottom assembly comprising a bowl-shaped substrate disposed therein. The model newborn human eye further comprises a retinal layer comprising a two dimensional image of retinal vasculature disposed on said substrate, where the model newborn human eye is dimensioned for diagnosing Retinopathy of Prematurity (“ROP”) in premature infants.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: July 5, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 9332900
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 10, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 9295583
    Abstract: A device 1500 for performing an anterior capsulotomy procedure, wherein the device includes a body 1504 having proximal and distal ends. A cutting element 1010 having at least one surgical blade 1014 is rotatably disposed on a distal end of the body. The cutting element is attached to a pinion 1300 comprising a plurality of gear teeth 1310. The gear teeth on the pinion intermesh with gear teeth 1204 disposed on a distal end of a shaft assembly 1202. As the shaft assembly 1202 is moved laterally within the body 1504, the pinion 1300 is caused to rotate.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 29, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 9032962
    Abstract: An ophthalmological device, comprising an eye patch, a photovoltaic, and a battery, wherein said photovoltaic is interconnected to said battery.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: May 19, 2015
    Inventor: Johan T. W. Van Dalen
  • Publication number: 20150022778
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Publication number: 20140356836
    Abstract: A model newborn human eye which includes a hemispherical-shaped, integrally molded top assembly comprising a visually transparent cornea portion surrounding a visually opaque sclera portion in combination with a hemispherical-shaped bottom assembly comprising a bowl-shaped substrate disposed therein. The model newborn human eye further comprises a retinal layer comprising a two dimensional image of retinal vasculature disposed on said substrate, where the model newborn human eye is dimensioned for diagnosing Retinopathy of Prematurity (“ROP”) in premature infants.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicant: Eye Care and Cure Asia Pte Ltd
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Patent number: 8857992
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: October 14, 2014
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8857991
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 14, 2014
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8684743
    Abstract: A model human eye that is structurally suited for practicing surgical techniques, including extraocular muscle resection and recession, is presented. The model eye comprises a hemispherical-shaped, bottom assembly having multiple retinal layers and a hemispherical-shaped, integrally molded top assembly having a visually transparent cornea portion surrounding a visually opaque sclera portion. The model eye further comprises an annular iris, a lenticular bag, an anterior chamber having a first fluid disposed therein, and a posterior chamber having a second fluid disposed therein.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 1, 2014
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8683613
    Abstract: An eye patch is presented that is usable with eyeglass frames comprising a lens and side arm. The eye patch comprises a conoidal member to be positioned over a front of the lens such that a frontal and a peripheral vision of an eye is substantially blocked and a flap having a releasable securing device, wherein the flap is to be positioned over a back of the lens such that the releasable securing device secures the eye patch to the eyeglass frames.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: April 1, 2014
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Publication number: 20130321774
    Abstract: A device for determining the dominant eye of a person. The device comprises a cone having a small hole at its apex which serves as a view port. The cone is attached to a handle, which contains a battery-powered, low-level laser light source that emits light through a light port in the handle. The cone and handle are designed to be made from a single sheet of material. To determine a person's dominant eye, the person holds the device at arm's length by the handle. The laser is turned on and the person aims the light at a distant wall. The person looks through the base of the cone through the view port with both eyes open, and locates the laser spot on the distant wall through the view port. The person then closes his right eye. If the laser spot disappears from view, the person is right-eye dominant.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 5, 2013
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Publication number: 20130308101
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 21, 2013
    Applicant: Eye Care and Cure Asia Pte Ltd
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Patent number: D721553
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 27, 2015
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: D735334
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: July 28, 2015
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Patent number: D736380
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: August 11, 2015
    Inventors: Marsha Van Dalen, Johan T. W. Van Dalen
  • Patent number: D736381
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: August 11, 2015
    Inventors: Marsha Van Dalen, Johan T.W. Van Dalen
  • Patent number: D752748
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: March 29, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: D752749
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: March 29, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: D766369
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: September 13, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: D775086
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: December 27, 2016
    Inventors: Johan T. W. Van Dalen, Dan D. Carda