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).
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Publication number: 20200121504Abstract: 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: ApplicationFiled: December 23, 2019Publication date: April 23, 2020Applicant: iScience lnterventional CorporationInventors: Robert Stegmann, Stanley R. Conston, David J. Kupiecki, John McKenzie, Candice D. Pinson, Ronald Yamamoto
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Publication number: 20120010702Abstract: 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: ApplicationFiled: September 15, 2011Publication date: January 12, 2012Applicant: ISCIENCE INTERVENTIONAL CORPORATIONInventors: Robert STEGMANN, Stanley R. CONSTON, David J. KUPIECKI, John McKENZIE, Candice D. PINSON, Ronald K. YAMAMOTO
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Patent number: 8034105Abstract: 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: GrantFiled: December 16, 2005Date of Patent: October 11, 2011Assignee: iScience Interventional CorporationInventors: Robert Stegmann, Stanley R. Conston, David J. Kupiecki, John McKenzie, Candice D. Pinson, Ronald K. Yamamoto
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Publication number: 20110118649Abstract: 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: ApplicationFiled: November 13, 2009Publication date: May 19, 2011Applicant: Grieshaber Ophthalmic Research FoundationInventors: Robert Stegmann, Matthias Grieshaber, Hans Grieshaber
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Publication number: 20060195187Abstract: 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: ApplicationFiled: December 16, 2005Publication date: August 31, 2006Applicant: iScience Surgical CorporationInventors: Robert Stegmann, Stanley Conston, David Kupiecki, John McKenzie, Candice Pinson, Ronald Yamamoto
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Publication number: 20050117118Abstract: 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: ApplicationFiled: October 20, 2004Publication date: June 2, 2005Inventors: David Miller, Ernesto Blanco, Steve Burns, Robert Stegmann, Ramgopal Rao
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Patent number: 6764439Abstract: 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: GrantFiled: July 11, 2001Date of Patent: July 20, 2004Assignee: Grieshaber & Co. AG SchaffhausenInventors: Hansgeorg Schaaf, Robert Stegmann, Werner Maag
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Patent number: 6726676Abstract: 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: GrantFiled: January 5, 2000Date of Patent: April 27, 2004Assignee: Grieshaber & Co. AG SchaffhausenInventors: Robert Stegmann, Hans R. Grieshaber
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Publication number: 20030139729Abstract: 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: ApplicationFiled: January 5, 2000Publication date: July 24, 2003Inventors: PROF M.D. ROBERT STEGMANN, HANS R. GRIESHABER
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Publication number: 20030071893Abstract: 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: ApplicationFiled: October 4, 2002Publication date: April 17, 2003Inventors: David Miller, Ernesto Blanco, Steve K. Burns, Ramgopol Rao, Robert Stegmann
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Patent number: 6375642Abstract: 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: GrantFiled: February 15, 2000Date of Patent: April 23, 2002Assignee: Grieshaber & Co. AG SchaffhausenInventors: Hans R. Grieshaber, M. D. Robert Stegmann
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Publication number: 20020013546Abstract: 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: ApplicationFiled: September 17, 2001Publication date: January 31, 2002Applicant: Grieshaber & Co. AG SchaffhausenInventors: Hans R. Grieshaber, Robert Stegmann
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Publication number: 20010053873Abstract: 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: ApplicationFiled: July 11, 2001Publication date: December 20, 2001Inventors: Hansgeorg Schaaf, Robert Stegmann, Werner Maag
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Patent number: 5807401Abstract: 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: GrantFiled: November 2, 1995Date of Patent: September 15, 1998Assignee: Grieshaber & Co. AG SchaffhausenInventors: Hans R. Grieshaber, Robert Stegmann
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Patent number: 5693062Abstract: 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: GrantFiled: June 6, 1995Date of Patent: December 2, 1997Assignee: Grieshaber & Co. AG SchaffhausenInventors: Robert Stegmann, Rudolf Demmerle
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Patent number: 5486165Abstract: 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: GrantFiled: January 13, 1994Date of Patent: January 23, 1996Inventor: Robert Stegmann
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Patent number: 5360399Abstract: 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: GrantFiled: March 30, 1992Date of Patent: November 1, 1994Inventor: Robert Stegmann