Patents by Inventor Rainer Lesmeister

Rainer Lesmeister 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: 20220151763
    Abstract: The present invention relates to a vascular prosthesis for a blood vessel of a patient, comprising: a hollow cylindrical main body having a prosthetic material, a longitudinal axis (L), and a stent frame, wherein the main body includes proximal and distal openings at proximal and distal ends, and wherein the vascular prosthesis having a first terminal stent ring attached to the prosthetic material at at least one end, and wherein the vascular prosthesis has at least one thread element attached thereto, wherein the at least one thread element reduces the diameter of the respective distal or proximal opening by tensile loading.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 19, 2022
    Inventors: Marleen Klausmann, Jan Ulmer, Oezlem Oeztuerk, Rainer Lesmeister
  • Patent number: 10667933
    Abstract: A delivery system is equipped with a self expanding stent for implantation into a blood vessel, in particular in the region of the aortic arch. The stent has a hollow cylindrical body which is radially compressed for implantation. A pull-back sheath which surrounds the stent and which radially compresses it is also provided for positioning and releasing the stent in the blood vessel. The pull-back sheath has a highly flexible front section which surrounds the stent and which maintains said stent in its compressed state, and has further a more rigid rear section which is connected to the front section and which is designed to transmit torsional and traction forces to the front section.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 2, 2020
    Assignee: JOTEC GMBH
    Inventors: Ralf Kaufmann, Hardy Mueller, Rainer Lesmeister, Michael Braun, John Geis
  • Patent number: 10363155
    Abstract: A stent graft comprises a hollow cylindrical body and a sleeve catheter, wherein the body comprises at least a self-expanding stent and prosthetic material, wherein the body has a circumference in a compressed state which is smaller than a circumference of the body in an expanded state. The sleeve catheter is embodied as a flap-shaped compression element comprising two longitudinal edges, wherein a first longitudinal edge is attached to the body, wherein an extent of the flap-shaped compression element perpendicular to the first longitudinal edge is smaller than the circumference of the body in the expanded state, wherein, for compressing the body, the flap-shaped compression element can be placed around the body and a free second longitudinal edge is detachably fixable to fixation points arranged on the body and/or on the flap-shaped compression element.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 30, 2019
    Assignee: JOTEC GMBH
    Inventors: Rainer Lesmeister, Franz-Peter Barthold
  • Patent number: 10327931
    Abstract: The invention relates to a pusher assembly for an insertion system for a vascular implant. The pusher assembly has a catheter tube. The catheter tube has a tubular cavity for accommodating a guide wire and has a proximal catheter tube segment and a distal catheter tube segment adjoining the proximal catheter tube segment. The distal catheter tube segment is provided at least partially for movably accommodating a vascular implant on the distal catheter tube segment. The catheter tube also has a pusher unit for releasing the vascular implant, said pusher unit being proximally adjacent to a vascular implant loaded onto catheter tube. The pusher assembly is characterized in that the pusher unit is formed by individual, segment-like elements, which are arranged on behind the other and adjacent to each other and are arranged on the catheter tube in order to proximally adjoin the vascular implant.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: June 25, 2019
    Assignee: JOTEC GmbH
    Inventor: Rainer Lesmeister
  • Publication number: 20160100969
    Abstract: A stent graft comprises a hollow cylindrical body and a sleeve catheter, wherein the body comprises at least a self-expanding stent and prosthetic material, wherein the body has a circumference in a compressed state which is smaller than a circumference of the body in an expanded state. The sleeve catheter is embodied as a flap-shaped compression element comprising two longitudinal edges, wherein a first longitudinal edge is attached to the body, wherein an extent of the flap-shaped compression element perpendicular to the first longitudinal edge is smaller than the circumference of the body in the expanded state, wherein, for compressing the body, the flap-shaped compression element can be placed around the body and a free second longitudinal edge is detachably fixable to fixation points arranged on the body and/or on the flap-shaped compression element.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Applicant: JOTEC GMBH
    Inventors: Rainer LESMEISTER, Franz-Peter BARTHOLD
  • Publication number: 20160051387
    Abstract: The invention relates to a pusher assembly for an insertion system for a vascular implant. The pusher assembly has a catheter tube. The catheter tube has a tubular cavity for accommodating a guide wire and has a proximal catheter tube segment and a distal catheter tube segment adjoining the proximal catheter tube segment. The distal catheter tube segment is provided at least partially for movably accommodating a vascular implant on the distal catheter tube segment. The catheter tube also has a pusher unit for releasing the vascular implant, said pusher unit being proximally adjacent to a vascular implant loaded onto catheter tube. The pusher assembly is characterized in that the pusher unit is formed by individual, segment-like elements, which are arranged on behind the other and adjacent to each other and are arranged on the catheter tube in order to proximally adjoin the vascular implant.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: JOTEC GmbH
    Inventor: Rainer Lesmeister
  • Patent number: 8668729
    Abstract: A stent for implantation in a blood vessel is disclosed, especially in the region of the aortic arch. The stent is comprising rings which are disposed successively in the stent's longitudinal direction and which are made up of meandering circumferential supports. The stent further comprises a prosthesis material which is fixed to the rings and which connects them, thereby forming a hollow cylindrical body with a jacket which is substantially closed on the circumference thereof. At least one connecting support is provided between the last ring and the penultimate ring at the proximal end of the stent and connects these two rings to one another.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: March 11, 2014
    Assignee: Jotec GmbH
    Inventors: Ralf Kaufmann, Rainer Lesmeister, Hardy Müller, Michael Braun, John Geis
  • Patent number: 8641749
    Abstract: The present invention relates to a delivery system for a self-expanding stent with a hollow cylindrical body and a proximal and a distal end. At least the proximal end thereof has projecting loops pointing alternately in the proximal and distal direction, the loops having a shoulder and straight sections. In addition, there is an outer tube which passes through the stent and an inner tube which passes through the outer tube, the inner tube and the outer tube being designed to move axially with respect to one another. In addition, it is fitted with a locking system for the projecting loops at the proximal end of the stent for introduction of the stent into the body vessel, the locking system having a cap element with pin elements fixed to it which point axially in the proximal direction of the delivery system and a first engagement unit for the pin elements which is positioned proximal with respect to the cap element in the delivery system.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 4, 2014
    Assignee: JOTEC GmbH
    Inventors: Franz-Peter Barthold, Rainer Lesmeister
  • Publication number: 20090099637
    Abstract: The present invention relates to a delivery system for a self-expanding stent with a hollow cylindrical body and a proximal and a distal end. At least the proximal end thereof has projecting loops pointing alternately in the proximal and distal direction, the loops having a shoulder and straight sections. In addition, there is an outer tube which passes through the stent and an inner tube which passes through the outer tube, the inner tube and the outer tube being designed to move axially with respect to one another. In addition, it is fitted with a locking system for the projecting loops at the proximal end of the stent for introduction of the stent into the body vessel, the locking system having a cap element with pin elements fixed to it which point axially in the proximal direction of the delivery system and a first engagement unit for the pin elements which is positioned proximal with respect to the cap element in the delivery system.
    Type: Application
    Filed: November 9, 2007
    Publication date: April 16, 2009
    Inventors: Franz-Peter BARTHOLD, Rainer Lesmeister
  • Publication number: 20060247757
    Abstract: A delivery system is equipped with a self expanding stent for implantation into a blood vessel, in particular in the region of the aortic arch. The stent has a hollow cylindrical body which is radially compressed for implantation. A pull-back sheath which surrounds the stent and which radially compresses it is also provided for positioning and releasing the stent in the blood vessel. The pull-back sheath has a highly flexible front section which surrounds the stent and which maintains said stent in its compressed state, and has further a more rigid rear section which is connected to the front section and which is designed to transmit torsional and traction forces to the front section.
    Type: Application
    Filed: March 29, 2006
    Publication date: November 2, 2006
    Applicant: JOTEC GmbH
    Inventors: Ralf Kaufmann, Hardy Mueller, Rainer Lesmeister, Michael Braun, John Geis
  • Publication number: 20060195177
    Abstract: A stent for implantation in a blood vessel is disclosed, especially in the region of the aortic arch. The stent is comprising rings which are disposed successively in the stent's longitudinal direction and which are made up of meandering circumferential supports. The stent further comprises a prosthesis material which is fixed to the rings and which connects them, thereby forming a hollow cylindrical body with a jacket which is substantially closed on the circumference thereof. At least one connecting support is provided between the last ring and the penultimate ring at the proximal end of the stent and connects these two rings to one another.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 31, 2006
    Applicant: JOTEC GmbH
    Inventors: Ralf Kaufmann, Rainer Lesmeister, Hardy Muller, Michael Braun, John Geis