Patents by Inventor Claus Cursiefen

Claus Cursiefen 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: 11931242
    Abstract: A device for the preparation of a Descemet's membrane-endothelium graft includes a bowl with an inner bottom and a sidewall surrounding the bottom, particularly the bowl being configured to receive a fluid and a Descemet's membrane-endothelium graft or a donor cornea graft comprising a Descemet's membrane-endothelium graft floating in the fluid, a preparation area positioned in a first part of the inner bottom of the bowl, particularly for receiving and preparing the graft prior to transport, a transfer area positioned in a second part of the inner bottom between the preparation area and an outlet opening in the sidewall, particularly the opening being entirely positioned below the upper rim of the sidewall.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 19, 2024
    Assignee: UNIVERSITAET ZU KOELN
    Inventors: Claus Cursiefen, Bjoern Bachmann, Sebastian Siebelmann
  • Publication number: 20220287821
    Abstract: A device for the preparation of a Descemet's membrane-endothelium graft includes a bowl with an inner bottom and a sidewall surrounding the bottom, particularly the bowl being configured to receive a fluid and a Descemet's membrane-endothelium graft or a donor cornea graft comprising a Descemet's membrane-endothelium graft floating in the fluid, a preparation area positioned in a first part of the inner bottom of the bowl, particularly for receiving and preparing the graft prior to transport, a transfer area positioned in a second part of the inner bottom between the preparation area and an outlet opening in the sidewall, particularly the opening being entirely positioned below the upper rim of the sidewall.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 15, 2022
    Inventors: Claus CURSIEFEN, Bjoern BACHMANN, Sebastian SIEBELMANN
  • Publication number: 20220151766
    Abstract: The invention relates to a device for the transplantation of a Descemet's membrane-endothelium graft (5), comprising a longitudinal tube (1), the tube (1) having an inner cavity (2), an inlet opening (3) at its proximal end (PE) through which it is possible to introduce the graft (5) into the cavity (2), and an outlet opening (4) at its distal end (DE) through which it is possible to eject the graft (5) from the cavity (2), particularly into the anterior eye chamber of a patient, a guiding element (6) situated in the cavity (2) of the tube (1) extending from the proximal end area of the tube (1) or device towards the distal end area of the tube (1) or device and having an increasing cross section at least along a part of its extension, particularly by increasing the width of the guiding element (6) more than the height of the guiding element (6), wherein the guiding element (6) extending beyond the outlet opening (4) of the tube into the exterior environment of the tube (1), and having the distal end (6b) of
    Type: Application
    Filed: March 4, 2020
    Publication date: May 19, 2022
    Inventors: Bjoern BACHMANN, Claus CURSIEFEN, Sebastian SIEBELMANN
  • Publication number: 20220143137
    Abstract: The present invention relates to a non-aqueous ophthalmic composition comprising particles of a protein powder preparation suspended in a liquid vehicle comprising a semifluorinated alkane, wherein the particles of the protein powder preparation comprise an anti-VEGF protein selected from aflibercept or a sequence having at least 90% sequence identity to SEQ ID NO: 1. The composition is particularly suitable for the treatment of ocular neovascularization.
    Type: Application
    Filed: February 11, 2020
    Publication date: May 12, 2022
    Inventors: Madlen WITT, Claus CURSIEFEN, Felix BOCK
  • Patent number: 10874504
    Abstract: A device for the transplantation of a Descemet's membrane includes a longitudinal tube having an inner cavity, an inlet opening through which it is possible to introduce the Descemet's membrane into the device, and an outlet opening through which it is possible to eject the Descemet's membrane from the device, especially into the anterior eye chamber of a patient, wherein the device also includes, at least in the region of the outlet opening, a separation element which protrudes from the inner wall region of the tube into the cavity, especially a first separation element, the separation element dividing the cavity at least regionally, in particular dividing it in a region close to the separation element.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 29, 2020
    Assignee: UNIVERSITAET ZU KOELN
    Inventors: Bjoern Bachmann, Sebastian Siebelmann, Claus Cursiefen
  • Publication number: 20190125520
    Abstract: A device for the transplantation of a Descemet's membrane includes a longitudinal tube having an inner cavity, an inlet opening through which it is possible to introduce the Descemet's membrane into the device, and an outlet opening through which it is possible to eject the Descemet's membrane from the device, especially into the anterior eye chamber of a patient, wherein the device also includes, at least in the region of the outlet opening, a separation element which protrudes from the inner wall region of the tube into the cavity, especially a first separation element, the separation element dividing the cavity at least regionally, in particular dividing it in a region close to the separation element.
    Type: Application
    Filed: June 27, 2017
    Publication date: May 2, 2019
    Inventors: Bjoern BACHMANN, Sebastian SIEBELMANN, Claus CURSIEFEN
  • Patent number: 7300653
    Abstract: Methods of preventing, reducing, or treating corneal transplant rejection to improve transplant survival in a subject in need thereof comprising administering an agent capable of blocking or inhibiting vascular endothelial growth factor (VEGF) are provided. The methods are useful for inhibiting or preventing corneal transplant rejection in a human subject who is the recipient of a transplanted cornea.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: November 27, 2007
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Stanley Wiegand, Jingtai Cao, Claus Cursiefen
  • Patent number: 7300654
    Abstract: Methods of preventing, reducing, or treating corneal transplant rejection to improve transplant survival in a high risk subject comprising administering an agent capable of blocking or inhibiting vascular endothelial growth factor (VEGF) are provided. The methods are useful for inhibiting or preventing corneal transplant rejection in a human subject who is the recipient of a transplanted cornea.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: November 27, 2007
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Stanley Wiegand, Jingtai Cao, Claus Cursiefen
  • Publication number: 20050197291
    Abstract: Methods of preventing, reducing, or treating corneal transplant rejection to improve transplant survival in a high risk subject comprising administering an agent capable of blocking or inhibiting vascular endothelial growth factor (VEGF) are provided. The methods are useful for inhibiting or preventing corneal transplant rejection in a human subject who is the recipient of a transplanted cornea.
    Type: Application
    Filed: January 19, 2005
    Publication date: September 8, 2005
    Inventors: Stanley Wiegand, Jingtai Cao, Claus Cursiefen
  • Publication number: 20050004027
    Abstract: Methods of preventing, reducing, or treating corneal transplant rejection to improve transplant survival in a subject in need thereof comprising administering an agent capable of blocking or inhibiting vascular endothelial growth factor (VEGF) are provided. The methods are useful for inhibiting or preventing corneal transplant rejection in a human subject who is the recipient of a transplanted cornea.
    Type: Application
    Filed: April 23, 2004
    Publication date: January 6, 2005
    Inventors: Stanley Wiegand, Jingtai Cao, Claus Cursiefen