Patents Assigned to DENDRON GmbH
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Patent number: 9254134Abstract: 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: GrantFiled: June 13, 2013Date of Patent: February 9, 2016Assignee: Dendron GmbHInventor: Hermann Monstadt
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Patent number: 8632584Abstract: 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: GrantFiled: November 5, 2007Date of Patent: January 21, 2014Assignee: Dendron GmbHInventors: Hans Henkes, Achim Flesser, Ronald Kontek, Jürgen Speder, Ralph Bodenburg
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Patent number: 8480701Abstract: 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: GrantFiled: January 21, 2005Date of Patent: July 9, 2013Assignee: Dendron GmbHInventor: Hermann Monstadt
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Publication number: 20120010648Abstract: 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: ApplicationFiled: September 13, 2011Publication date: January 12, 2012Applicant: Tyco Healthcare Group, LP, as successor in interest to Dendron GmbH, Inc.Inventors: Hermann MONSTADT, Hans HENKES, Marion DENK
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Patent number: 8048104Abstract: 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: GrantFiled: September 21, 2007Date of Patent: November 1, 2011Assignee: Dendron GmbHInventors: Hermann Monstadt, Hans Henkes, Marion Denk
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Patent number: 7524322Abstract: 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: GrantFiled: August 13, 2003Date of Patent: April 28, 2009Assignee: Dendron GmbHInventors: Hermann Monstdt, Hans Henkes, Marion Denk
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Publication number: 20080103585Abstract: 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: ApplicationFiled: September 22, 2004Publication date: May 1, 2008Applicant: Dendron GmbHInventors: Hermann Monstadt, Achim Flesser, Ralf Hannes
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Patent number: 7323000Abstract: 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: GrantFiled: October 30, 2000Date of Patent: January 29, 2008Assignee: Dendron GmbHInventors: Hermann Monstdt, Hans Henkes, Marion Denk
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Patent number: 7238194Abstract: 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: GrantFiled: July 24, 2002Date of Patent: July 3, 2007Assignee: DENDRON GmbHInventors: Hermann Monstadt, Hans Henkes
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Publication number: 20050209678Abstract: 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: ApplicationFiled: January 19, 2005Publication date: September 22, 2005Applicant: Dendron GmbHInventors: Hans Henkes, Achim Flesser, Ronald Kontek, Jurgen Speder, Ralph Bodenburg