Patents Assigned to DENDRON GmbH
  • Patent number: 9254134
    Abstract: The invention relates to a device for the implantation of occlusion helixes (3) that can be separated by electrolysis in blood vessels and body cavities, especially aneurysms (12), said device comprising an insertion aid (4), at least one occlusion helix (3) that is distally arranged in relation to the insertion aid (4) and at least one electrolytically corrodible severance element (2), with at least one stabilization helix (5) being arranged between severance element (2) and occlusion helix (3) and said stabilization helix (5) being connected with the occlusion helix (3) by an electrically isolating adhesion layer (7) such that the occlusion helix (3) becomes isolated from the voltage when an electrical voltage is applied to the severance element (2).
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 9, 2016
    Assignee: Dendron GmbH
    Inventor: Hermann Monstadt
  • Patent number: 8632584
    Abstract: A medical implant, having a proximal and a distal end, that is preformed to assume a superimposed structure at an implantation site but can be made to take on a volume-reduced form making it possible to introduce it by means of a micro-catheter and a guide wire arranged at the proximal end, with the implant in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments. The implant has a tapering structure at its proximal end where the strings or filaments converge at a connection point.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: January 21, 2014
    Assignee: Dendron GmbH
    Inventors: Hans Henkes, Achim Flesser, Ronald Kontek, Jürgen Speder, Ralph Bodenburg
  • Patent number: 8480701
    Abstract: The invention relates to a device for the implantation of occlusion helixes (3) that can be separated by electrolysis in blood vessels and body cavities, especially aneurysms (12), said device comprising an insertion aid (4), at least one occlusion helix (3) that is distally arranged in relation to the insertion aid (4) and at least one electrolytically corrodible severance element (2), with at least one stabilization helix (5) being arranged between severance element (2) and occlusion helix (3) and said stabilization helix (5) being connected with the occlusion helix (3) by an electrically isolating adhesion layer (7) such that the occlusion helix (3) becomes isolated from the voltage when an electrical voltage is applied to the severance element (2).
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 9, 2013
    Assignee: Dendron GmbH
    Inventor: Hermann Monstadt
  • Publication number: 20120010648
    Abstract: A device for the implantation of electrolytically severable occluding spirals in body cavities or blood vessels comprising a source of electrical power, a cathode, a catheter and an occluding spiral adapted to serve as an anode and able to slide in the catheter in the longitudinal direction, wherein the occluding spiral (3) is designed to be electrolytically corrodible at several spaced apart points so that when in contact with a body fluid one or more variably dimensioned lengths of the occluding spiral (3) may be severed by electrolysis.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 12, 2012
    Applicant: Tyco Healthcare Group, LP, as successor in interest to Dendron GmbH, Inc.
    Inventors: Hermann MONSTADT, Hans HENKES, Marion DENK
  • Patent number: 8048104
    Abstract: A device for the implantation of electrolytically severable occluding spirals in body cavities or blood vessels comprising a source of electrical power, a cathode, a catheter and an occluding spiral adapted to serve as an anode and able to slide in the catheter in the longitudinal direction, wherein the occluding spiral (3) is designed to be electrolytically corrodible at several spaced apart points so that when in contact with a body fluid one or more variably dimensioned lengths of the occluding spiral (3) may be severed by electrolysis.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Dendron GmbH
    Inventors: Hermann Monstadt, Hans Henkes, Marion Denk
  • Patent number: 7524322
    Abstract: The invention relates to a device for the implantation of electrolytically releasable occlusion means in body cavities or blood vessels. The device is intended for use in veterinary or human medicinal processes for the occlusion of aneurysms.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: April 28, 2009
    Assignee: Dendron GmbH
    Inventors: Hermann Monstdt, Hans Henkes, Marion Denk
  • Publication number: 20080103585
    Abstract: The invention relates to a device for the implantation of microcoils (3, 7, 11, 12) into body cavities and blood vessels, in particular aneurysms, with said microcoils (3, 7, 11, 12) comprising wires forming a plurality of windings (4), at least one microcoil serving as occlusion helix (3) for the occlusion of the body cavity or blood vessel, and the device consisting of a catheter, one or several microcoils (3, 7, 11, 12) movably arranged in longitudinal direction within the catheter and at least one securing means (10) passing at least partially through the lumen (9) of the occlusion helix (3), with said securing means (10) being fixed in its end areas inside the microcoils (3, 7, 11, 12). Such a fixation of the securing means (10) is achieved in at least one end area by providing a frictional connection with the microcoil (3, 7, 11, 12) in such a manner that this connection is detachable from the microcoil (3, 7, 11, 12) when a certain tensile force acting on the securing means (10) is exceeded.
    Type: Application
    Filed: September 22, 2004
    Publication date: May 1, 2008
    Applicant: Dendron GmbH
    Inventors: Hermann Monstadt, Achim Flesser, Ralf Hannes
  • Patent number: 7323000
    Abstract: A device for the implantation of electrolytically severable occluding spirals in body cavities or blood vessels comprising a source of electrical power, a cathode, a catheter and an occluding spiral adapted to serve as an anode and able to slide in the catheter in the longitudinal direction, wherein the occluding spiral (3) is designed to be electrolytically corrodible at several spaced apart points so that when in contact with a body fluid one or more variably dimensioned lengths of the occluding spiral (3) may be severed by electrolysis.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: January 29, 2008
    Assignee: Dendron GmbH
    Inventors: Hermann Monstdt, Hans Henkes, Marion Denk
  • Patent number: 7238194
    Abstract: Device for implanting occlusion spirals in body cavities or blood vessels with a catheter, an occlusion spiral that can be moved within the catheter in the longitudinal direction, and at least one securing means attached in the occlusion spiral, structured as a flexible lengthwise element, which passes through the length of the occlusion spiral at least in a partial region, which is characterized in that the securing means contains a material with shape memory properties.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 3, 2007
    Assignee: DENDRON GmbH
    Inventors: Hermann Monstadt, Hans Henkes
  • Publication number: 20050209678
    Abstract: A medical implant, having a proximal and a distal end, that is preformed to assume a superimposed structure at an implantation site but can be made to take on a volume-reduced form making it possible to introduce it by means of a micro-catheter and a guide wire arranged at the proximal end, with the implant in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments. The implant has a tapering structure at its proximal end where the strings or filaments converge at a connection point.
    Type: Application
    Filed: January 19, 2005
    Publication date: September 22, 2005
    Applicant: Dendron GmbH
    Inventors: Hans Henkes, Achim Flesser, Ronald Kontek, Jurgen Speder, Ralph Bodenburg