Patents by Inventor Robert Stegmann

Robert Stegmann 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).

  • Publication number: 20200121504
    Abstract: An implant is placed within Schlemm's canal of the eye and provides tension to the trabecular meshwork. The tension is continuous and increases the aqueous outflow without the necessity of administering cholinergic drugs to treat glaucoma.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 23, 2020
    Applicant: iScience lnterventional Corporation
    Inventors: Robert Stegmann, Stanley R. Conston, David J. Kupiecki, John McKenzie, Candice D. Pinson, Ronald Yamamoto
  • Publication number: 20120010702
    Abstract: An implant is placed within Schlemm's canal of the eye and provides tension to the trabecular meshwork. The tension is continuous and increases the aqueous outflow without the necessity of administering cholinergic drugs to treat glaucoma.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 12, 2012
    Applicant: ISCIENCE INTERVENTIONAL CORPORATION
    Inventors: Robert STEGMANN, Stanley R. CONSTON, David J. KUPIECKI, John McKENZIE, Candice D. PINSON, Ronald K. YAMAMOTO
  • Patent number: 8034105
    Abstract: A method is provided for increasing the outflow of fluid through Schlemm's canal that is useful for treatment of glaucoma. The implant is placed in Schlemm's canal by use of a flexible delivery instrument attached to the implant. The instrument and implant are positioned within the canal, the implant is released and the distal and proximal ends of the implant are connected to apply sufficient axial tensioning force on the inner wall of the canal to increase fluid permeability. In another embodiment a delivery instrument attached to the implant is positioned in the canal securing one of the distal or proximal ends of the implant within the canal. The implant provides sufficient axial tensioning force on the inner wall of the canal to increase fluid permeability of the inner wall of the canal. The other of the distal or proximal ends may be secured to maintain the tensioning force on the inner wall of the canal.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 11, 2011
    Assignee: iScience Interventional Corporation
    Inventors: Robert Stegmann, Stanley R. Conston, David J. Kupiecki, John McKenzie, Candice D. Pinson, Ronald K. Yamamoto
  • Publication number: 20110118649
    Abstract: The invention relates to a method and a device for treatment of glaucoma, wherein by means of an elongated catheter provided with a distal portion and a proximal portion, a tube-shaped implant is inserted and released in a Schlemm's canal with two opposite openings exposed by an incision and a folded up scleral flap. In a first phase, the distal portion inserted into the Schlemm's canal through the first opening, while a fluid or gaseous medium is injected at the same time, and exited through the second opening, which is, in circumferential direction, oppositely located. The implant detachably disposed at the protruding distal portion and, in a second phase, inserted, in circumferential direction, into the expanded Schlemm's canal up to the first opening. Subsequently, the distal portion, which protrudes from the first opening, is detached from the implant and, together with the catheter, removed.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Applicant: Grieshaber Ophthalmic Research Foundation
    Inventors: Robert Stegmann, Matthias Grieshaber, Hans Grieshaber
  • Publication number: 20060195187
    Abstract: An implant is placed within Schlemm's canal of the eye and provides tension to the trabecular meshwork. The tension is continuous and increases the aqueous outflow without the necessity of administering cholinergic drugs to treat glaucoma.
    Type: Application
    Filed: December 16, 2005
    Publication date: August 31, 2006
    Applicant: iScience Surgical Corporation
    Inventors: Robert Stegmann, Stanley Conston, David Kupiecki, John McKenzie, Candice Pinson, Ronald Yamamoto
  • Publication number: 20050117118
    Abstract: A method of providing visual documentation and information for a surgical procedure. The method includes, providing at least one video camera for generating a video signal in a digital format, capturing an image of an eye and displaying the image on a monitor. A first template is created having a graphical content pertinent to the eye. The first template is displayed such that the first template is overlaid contemporaneously with the image of the eye on a display monitor.
    Type: Application
    Filed: October 20, 2004
    Publication date: June 2, 2005
    Inventors: David Miller, Ernesto Blanco, Steve Burns, Robert Stegmann, Ramgopal Rao
  • Patent number: 6764439
    Abstract: A device is disclosed for ophthalmologic microsurgery for improving the drainage of the aqueous humor in the eye of a living being, wherein the device has an endoscope connected to a monitor screen and includes a tube-shaped probe adapted for insertion into an eye, and one or more channels co-axially disposed therein and provided with optical elements for focusing and transmitting images from the viewing field in the eye, and wherein the probe houses a surgical tool which is movable in axial direction and about the longitudinal axis so that by means of the oscillating and/or vibrating tool a passageway can be opened in the tissue of the trabecular meshwork for connecting the anterior chamber with the Schlemm's canal.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: July 20, 2004
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Hansgeorg Schaaf, Robert Stegmann, Werner Maag
  • Patent number: 6726676
    Abstract: A method for improving the draining of aqueous humor in an eye of a living being and a device for widening the Schlemm's canal is described wherein a first incision is made in a lamellar section of the sclera to form a first scleral flap which is then folded upwards in the direction of the cornea, thereby creating a recess in the sclera.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: April 27, 2004
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Robert Stegmann, Hans R. Grieshaber
  • Publication number: 20030139729
    Abstract: A method for improving the draining of aqueous humor in an eye of a living being and a device for widening the Schlemm's canal is described wherein a first incision is made in a lamellar section of the sclera to form a first scleral flap which is then folded upwards in the direction of the cornea, thereby creating a recess in the sclera.
    Type: Application
    Filed: January 5, 2000
    Publication date: July 24, 2003
    Inventors: PROF M.D. ROBERT STEGMANN, HANS R. GRIESHABER
  • Publication number: 20030071893
    Abstract: A method of providing visual documentation of a surgical procedure. The method includes providing at least one video camera for generating a video signal in a digital format, the video signal representative of a stereoscopic view pair of a surgical subject. A template is created having a graphical content pertinent to the subject of the stereoscopic view pair. The template is displayed such that the template is overlaid contemporaneously with the stereoscopic view pair.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 17, 2003
    Inventors: David Miller, Ernesto Blanco, Steve K. Burns, Ramgopol Rao, Robert Stegmann
  • Patent number: 6375642
    Abstract: A method for improving a drainage of aqueous humor in an eye of a living being and a device for maintaining the drainage of aqueous humor are described, wherein a first incision is made in a lamellar section of the sclera to form a first scleral flap which is then folded upwards in the direction of the cornea, thereby creating a recess in the sclera. A second scleral flap is formed by incising a second lamellar section in the area of the recess and lifted upwardly in the direction of the first sclera flap, thereby creating a second recess and exposing a portion of the Schlemm's canal for permitting injection of a highly viscous medium. At least one support element is implanted in the lumen of the Schlemm's canal on each of both sides of the second recess and, optionally, in the exposed portion of the Schlemm's canal, whereby each of the support elements is made of a material that is decomposable by the tissue of the Schlemm's canal and/or aqueous humor.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: April 23, 2002
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Hans R. Grieshaber, M. D. Robert Stegmann
  • Publication number: 20020013546
    Abstract: Method for improving aqueous humor drainage in an eye with a Schlemm's canal in which eye the aqueous humor secreted by the ciliary body is drained through the subsequent outflow pathways and to a device to maintain aqueous humor drainage. A medium injected in the form of a hydrophilic liquid or a biocompatible gaseous medium or a mixture of the hydrophilic liquid and the gaseous medium into Schlemm's canal, which is microsurgically exposed at one or more locations, locally expands Schlemm's canal by the increased pressure. With a support element subsequently implanted in the lumen of Schlemm's canal, the inner walls of the canal are supported and permanently held in an expanded position, whereby unimpeded drainage of the aqueous humor from Schlemm's canal through the subsequent outflow pathways is ensured.
    Type: Application
    Filed: September 17, 2001
    Publication date: January 31, 2002
    Applicant: Grieshaber & Co. AG Schaffhausen
    Inventors: Hans R. Grieshaber, Robert Stegmann
  • Publication number: 20010053873
    Abstract: A device is disclosed for ophthalmologic microsurgery for improving the drainage of the aqueous humor in the eye of a living being, wherein the device has an endoscope connected to a monitor screen and includes a tube-shaped probe adapted for insertion into an eye, and one or more channels co-axially disposed therein and provided with optical elements for focusing and transmitting images from the viewing field in the eye, and wherein the probe houses a surgical tool which is movable in axial direction and about the longitudinal axis so that by means of the oscillating and/or vibrating tool a passageway can be opened in the tissue of the trabecular meshwork for connecting the anterior chamber with the Schlemm's canal.
    Type: Application
    Filed: July 11, 2001
    Publication date: December 20, 2001
    Inventors: Hansgeorg Schaaf, Robert Stegmann, Werner Maag
  • Patent number: 5807401
    Abstract: An ophthalmic surgical device for pulverizing the lens nucleus in the eye and for removing particles of the macerated lens nucleus from the eye of a living being, includes a housing which supports a mounting that receives at its forward end a guide tube. Set within the guide tube is a tubular probe which has one end carrying a cutting element and another end operatively connected to a motor for rotating the tubular probe together with the cutting element and/or moving the tubular probe together with the cutting element in axial direction relative to the stationary guide tube.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: September 15, 1998
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Hans R. Grieshaber, Robert Stegmann
  • Patent number: 5693062
    Abstract: An ophthalmic surgical device for macerating the lens nucleus in the eye and for removing particles of the macerated lens nucleus from the eye of a living being, includes a hand-held housing with a head piece attached at one axial end of the housing and supporting a guide tube. Disposed in the guide tube is a tubular probe which is operatively connected to a motor drive and projects beyond the guide tube with its tip to carry a cutting element in form of at least two rotatable wing-like blades oriented approximately transversely to the longitudinal axis of the guide tube. By means of the drive, the tubular probe is rotatable relative to the stationary guide tube about the longitudinal axis and movable at a high frequency in direction of the longitudinal axis.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 2, 1997
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Robert Stegmann, Rudolf Demmerle
  • Patent number: 5486165
    Abstract: A method and an appliance for carrying out the method, by means of which the necessary outflow of the aqueous humour which is continuously being renewed in the eye is ensured, and thus the natural intraocular pressure is maintained, are proposed. For the treatment, the sclera (13) undergoes operative lamellar incision for partial exposure of the canal of Schlemm (15), and the portion (13') which is opened out is held by means which are not depicted. A medium is introduced into the canal of Schlemm (15) by means of a tube (20) which is introduced into the circular canal of Schlemm (15), by which means the upstream trabecular tissue (15') is hydraulically expanded and traumatically opened at several points (15") and, at the same time, the points (15") are wetted by the highly viscous medium.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: January 23, 1996
    Inventor: Robert Stegmann
  • Patent number: 5360399
    Abstract: A method and an apparatus for carrying out the method, in which the necessary outflow of the aqueous humor which is continuously being renewed in the eye is ensured, and thus the normal intraocular pressure is maintained. For the treatment, the sclera undergoes operative lamellar incision for partial exposure of Schlemm's canal, and the portion which is opened out is held by a device which is not depicted. A medium is introduced into Schlemm's canal by a tube which is introduced into the circular canal of Schlemm by which the upstream trabecular tissue is hydraulically expanded and traumatically opened at several points and, at the same time, the points are wetted by the highly viscous medium.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: November 1, 1994
    Inventor: Robert Stegmann