Patents by Inventor Werner D. Ducke
Werner D. Ducke 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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Patent number: 10583023Abstract: An endograft introducer assembly having a transfer sheath is disclosed. The assembly includes a pusher assembly comprising a guide wire catheter, a tip mounted to a proximal end of the guide wire catheter, a stent graft receiving portion distal of the tip and a pusher distal of the receiving portion. The assembly further includes a transfer sheath extending distally over the stent graft receiving portion from a proximal position adjacent to the tip, the transfer sheath having a first length over the stent graft receiving portion; and a stopper disposed co-axially around the transfer sheath. The stopper has a proximal end terminating in a stopper surface and a distal portion, the distal portion removably engaged with the transfer sheath so as to prevent relative axial movement between the stopper and the transfer sheath in at least one direction.Type: GrantFiled: March 18, 2016Date of Patent: March 10, 2020Assignee: Cook Medical Technologies LLCInventor: Werner D. Ducke
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Patent number: 10413435Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. The indwelling guide wire are configured to receive the access sheaths. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate catheterization of a side branch or target vessel through the fenestration or be used to stabilize the access sheath during catheterization, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: GrantFiled: August 21, 2018Date of Patent: September 17, 2019Assignees: The Cleveland Clinic Foundation, Cook Medical Technologies LLCInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik E. Rasmussen
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Patent number: 10251743Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: GrantFiled: November 7, 2016Date of Patent: April 9, 2019Assignees: Cook Medical Technologies LLC, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik E. Rasmussen
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Publication number: 20190000607Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. The indwelling guide wire are configured to receive the access sheaths. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertization of a side branch or target vessel through the fenestration or be used to stabilize the access sheath during catheterization, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: ApplicationFiled: August 21, 2018Publication date: January 3, 2019Applicants: Cook Medical Technologies LLC, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik E. Rasmussen
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Patent number: 10028849Abstract: A flexible stent graft for deployment in a body vessel at a treatment site that includes a tubular body of graft material having circumferential crimps with alternative troughs and crests along its length, and a stent system comprising a plurality of circumferential turns which are attached at the crest.Type: GrantFiled: July 23, 2015Date of Patent: July 24, 2018Assignee: Cook Medical Technologies LLCInventors: Bao Bui, Werner D. Ducke, David E. Hartley, Raymond B. Leonard, II
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Patent number: 9867729Abstract: A capsule assembly for an endograft introducer is disclosed. The assembly comprises: a capsule retriever having a plug portion and a tail portion, the plug portion having a lead-in surface, the tail portion having an elongate body extending proximally from the plug portion to an end stop feature receiver; a capsule tube having an end stop feature at a proximal end thereof and terminating in a distal end, the end stop feature and the end stop receiver arranged such that proximal movement of the capsule tube relative to the plug portion is limited; and a capsule cavity inside the capsule tube, a proximal end of a prosthesis being receivable in the cavity. The capsule tube is slidably movable with respect to the capsule retriever to a position in which the distal end of the capsule tube is adjacent to the lead-in surface of the plug portion.Type: GrantFiled: February 3, 2015Date of Patent: January 16, 2018Assignee: Cook Medical Technologies LLCInventors: Werner D. Ducke, David Ernest Hartley, David Sean O'Brien, Blayne A. Roeder
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Patent number: 9622887Abstract: A stent graft has a cylindrical wall, an internal lumen within the cylindrical wall and a fenestration in the wall. The fenestration is closed off by a valve arrangement to prevent the flow of liquids from within the internal lumen to outside of the wall. The valve arrangement is a tube of graft material which can be closed off by pressure on its outside surface. The end of the tube remote from the fenestration can be held shut by having its periphery fastened to a flattened resilient ring. Fluid pressure on the tube of graft material causes the tube to close off to prevent fluid flow therethrough and by resilient deflection of the resilient ring the end of the tube of graft material can be opened to enable the passing of a medical device therethrough.Type: GrantFiled: November 3, 2014Date of Patent: April 18, 2017Assignee: Cook Medical Technologies LLCInventors: Werner D. Ducke, Chantelle King
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Publication number: 20170056154Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: ApplicationFiled: November 7, 2016Publication date: March 2, 2017Applicants: Cook Medical Technologies LLC, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik E. Rasmussen
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Patent number: 9510963Abstract: A capsule assembly for an endograft introducer is disclosed. The assembly comprises: a capsule and a capsule plug. The capsule has a cavity for receiving an end of a stent graft and a capsule wall terminating in a distal end. The capsule plug comprises: a tip portion having a lead-in surface and an abutment surface; and a tail portion having an external surface engageable with an inside surface of the capsule wall. The capsule is slideably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the distal end of the capsule wall and the abutment surface.Type: GrantFiled: November 7, 2014Date of Patent: December 6, 2016Assignee: Cook Medical Technologies LLCInventors: Kelly Coverdale, Werner D. Ducke, Graham W. Scott, Mena Yang
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Patent number: 9486343Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertization of a side branch or target vessel through the fenestration or be used to stabilize the access sheath during catheterization, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: GrantFiled: April 28, 2014Date of Patent: November 8, 2016Assignees: Cook Medical Technologies LLC, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik Rasmussen
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Publication number: 20160270937Abstract: An endograft introducer assembly having a transfer sheath is disclosed. The assembly includes a pusher assembly comprising a guide wire catheter, a tip mounted to a proximal end of the guide wire catheter, a stent graft receiving portion distal of the tip and a pusher distal of the receiving portion. The assembly further includes a transfer sheath extending distally over the stent graft receiving portion from a proximal position adjacent to the tip, the transfer sheath having a first length over the stent graft receiving portion; and a stopper disposed co-axially around the transfer sheath. The stopper has a proximal end terminating in a stopper surface and a distal portion, the distal portion removably engaged with the transfer sheath so as to prevent relative axial movement between the stopper and the transfer sheath in at least one direction.Type: ApplicationFiled: March 18, 2016Publication date: September 22, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventor: Werner D. Ducke
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Publication number: 20150320578Abstract: A flexible stent graft for deployment in a body vessel at a treatment site that includes a tubular body of graft material having circumferential crimps with alternative troughs and crests along its length, and a stent system comprising a plurality of circumferential turns which are attached at the crest.Type: ApplicationFiled: July 23, 2015Publication date: November 12, 2015Applicant: Cook Medical Technologies LLCInventors: Bao Bui, Werner D. Ducke, David E. Hartley, Raymond B. Leonard, II
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Patent number: 9107741Abstract: A flexible stent graft for deployment in a body vessel at a treatment site includes a tubular body, at least a first portion of which comprises a graft material and a coiled stent comprising a plurality of helical turns with spacings between the turns. The coiled stent is affixed to the graft material of the first portion. The first portion has a first portion diameter and the coiled stent has a helix diameter which is substantially the same as the first portion diameter. The coiled stent comprises a ratio of helical pitch to helix diameter of from about 1:2 to about 1:20, where the helical pitch is the spacing between adjacent turns of the coiled stent.Type: GrantFiled: October 30, 2008Date of Patent: August 18, 2015Assignee: Cook Medical Technologies LLCInventors: Bao Bui, Werner D. Ducke, David E. Hartley, Raymond B. Leonard
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Publication number: 20150216694Abstract: A capsule assembly for an endograft introducer is disclosed. The assembly comprises: a capsule retriever having a plug portion and a tail portion, the plug portion having a lead-in surface, the tail portion having an elongate body extending proximally from the plug portion to an end stop feature receiver; a capsule tube having an end stop feature at a proximal end thereof and terminating in a distal end, the end stop feature and the end stop receiver arranged such that proximal movement of the capsule tube relative to the plug portion is limited; and a capsule cavity inside the capsule tube, a proximal end of a prosthesis being receivable in the cavity. The capsule tube is slidably movable with respect to the capsule retriever to a position in which the distal end of the capsule tube is adjacent to the lead-in surface of the plug portion.Type: ApplicationFiled: February 3, 2015Publication date: August 6, 2015Inventors: Werner D. Ducke, David Ernest Hartley, David Sean O'Brien, Blayne A. Roeder
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Publication number: 20150202067Abstract: A stent graft and delivery device assembly comprises a dilator 3, a stent graft receiving portion distal of the dilator, an elongate seal-engaging sleeve portion 185 distal of the stent graft receiving portion, a stent graft 35 mounted on the stent graft receiving portion, a stent graft cover 100 mounted around the stent graft, the cover having a maximum outer diameter, and an introducer 40 disposed around the elongate seal-engaging sleeve portion. The introducer has a hollow body, a haemostatic device 33 and an introducer catheter 45 extending from the hollow body. The inner diameter D of the catheter is greater than the outer diameter Y of the seal-engaging sleeve portion 185. The seal-engaging sleeve portion has a maximum outer diameter Y less than the maximum outer diameter C of the cover 100.Type: ApplicationFiled: January 6, 2015Publication date: July 23, 2015Inventors: Zoe Barrand, Werner D. Ducke, Adrian Moran, Mena Yang
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Publication number: 20150142097Abstract: A capsule assembly for an endograft introducer is disclosed. The assembly comprises: a capsule and a capsule plug. The capsule has a cavity for receiving an end of a stent graft and a capsule wall terminating in a distal end. The capsule plug comprises: a tip portion having a lead-in surface and an abutment surface; and a tail portion having an external surface engagable with an inside surface of the capsule wall. The capsule is slidably movable with respect to the capsule plug from a first position in which the distal end of the capsule wall surrounds an opening into the cavity to a second position in which the distal end of the capsule wall is positioned proximally with respect to the abutment surface, whereby movement of the tip portion into the capsule is resisted by abutment between the distal end of the capsule wall and the abutment surface.Type: ApplicationFiled: November 7, 2014Publication date: May 21, 2015Inventors: Kelly Coverdale, Werner D. Ducke, Graham W. Scott, Mena Yang
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Publication number: 20150127089Abstract: A stent graft has a cylindrical wall, an internal lumen within the cylindrical wall and a fenestration in the wall. The fenestration is closed off by a valve arrangement to prevent the flow of liquids from within the internal lumen to outside of the wall. The valve arrangement is a tube of graft material which can be closed off by pressure on its outside surface. The end of the tube remote from the fenestration can be held shut by having its periphery fastened to a flattened resilient ring. Fluid pressure on the tube of graft material causes the tube to close off to prevent fluid flow therethrough and by resilient deflection of the resilient ring the end of the tube of graft material can be opened to enable the passing of a medical device therethrough.Type: ApplicationFiled: November 3, 2014Publication date: May 7, 2015Inventors: Werner D. Ducke, Chantelle King
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Publication number: 20140236277Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: ApplicationFiled: April 28, 2014Publication date: August 21, 2014Applicant: Cook Medical Technologies LLCInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik Rasmussen
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Patent number: 8753385Abstract: A multi-port stent graft delivery device (100) has an annular access lumen (107) between a delivery catheter (112) and a main sheath (106), at least one indwelling access sheath (118, 122) within the access lumen, and an indwelling guide wire (138, 146) within the or each access sheath and a stent graft (131) retained in the delivery device. Upon deployment of the stent graft into the vasculature of a patient the indwelling guide wire can be used to facilitate stabilisation of the access sheath during cathertisation of a side branch and deployment of a side arm covered or uncovered stent therein through the advanced access sheath. A two part handle enables withdrawal of a nose cone dilator before final placement of the side arm stents. A manifold (114) associated with a proximal handle portion provides a plurality of access ports (116, 120).Type: GrantFiled: January 14, 2010Date of Patent: June 17, 2014Assignee: Cook Medical Technologies LLCInventors: David Ernest Hartley, Werner D. Ducke
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Patent number: 8709061Abstract: A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate catheterization of a side branch or target vessel through the fenestration or be used to stabilize the access sheath during catheterization, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.Type: GrantFiled: June 6, 2011Date of Patent: April 29, 2014Assignees: Cook Medical Technologies LLC, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, Krasnodar Ivancev, David Ernest Hartley, Werner D. Ducke, Erik Rasmussen