Patents by Inventor Arne Molgaard-Nielsen
Arne Molgaard-Nielsen 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: 8118784Abstract: The haemostatic valve assembly (10) includes a housing (14) with a chamber (16) therewithin. A flexible valve element (26) is located in the chamber (16) and supported by the housing (14). A source (28) of pressurized fluid can be fed into the chamber (16) through a port (18) in the housing (14). A catheter, dilator, pusher or other elongate insert fed through the haemostatic valve assembly (10) can be sealed by the application of fluid pressure into the chamber (16), which causes the sides of the valve element (26) to press against the insert (24) thereby to provide an effective seal.Type: GrantFiled: October 22, 2008Date of Patent: February 21, 2012Assignee: Cook Medical Technologies LLCInventor: Arne Molgaard-Nielsen
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Patent number: 8105349Abstract: A removable filter having a collapsed state and an expanded state for capturing thrombi in a blood vessel is disclosed. The filter comprises a plurality of primary struts and a plurality of secondary struts. Each primary strut in the expanded state extends from a primary strut first end to an anchoring hook. Each primary strut extends arcuately along a longitudinal axis and linearly radially. The plurality of primary strut first ends are attached together along the longitudinal axis. Each secondary strut in the expanded state extends from a secondary strut first end to a free end. Each secondary strut extends arcuately along the longitudinal axis and linearly radially. The plurality of secondary struts are attached together along the longitudinal axis. The plurality of secondary struts centralize the filter in the expanded state in the blood vessel.Type: GrantFiled: April 18, 2005Date of Patent: January 31, 2012Assignee: Cook Medical Technologies LLCInventors: Per Hendriksen, Allan G. Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne, Rolf Gunther
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Publication number: 20110282301Abstract: The haemostatic valve assembly (10) includes a housing (14) with a chamber (16) therewithin. A flexible valve element (26) is located in the chamber (16) and supported by the housing (14). A resilient element (21), for example of foam, is located in the chamber (16) and applies a constant closing force on the valve element (26). The valve (10) can be opened by aspirating fluid held within the chamber (16), for example by means of a pump or syringe, thereby to create a vacuum therein which compresses the resilient element (21). Removal of the vacuum allows the resilient element (21) to expand again and to close the valve (10).Type: ApplicationFiled: May 6, 2011Publication date: November 17, 2011Applicant: COOK MEDICAL TECHNOLOGIES LLCInventor: Arne Mølgaard Nielsen
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Patent number: 8043322Abstract: The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts and a plurality of secondary struts. The plurality of primary struts has first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut is configured to cross another primary strut along the longitudinal axis in the collapsed state such that each anchoring hook faces the longitudinal axis away from the blood vessel for filter retrieval or delivery. The plurality of secondary struts has connected ends attached together along the longitudinal axis. The secondary struts extend therefrom to free ends to centralize the filter in the expanded in the blood vessel.Type: GrantFiled: April 18, 2005Date of Patent: October 25, 2011Assignee: Cook Medical Technologies LLCInventors: Per Hendriksen, Allan Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne
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Patent number: 7972353Abstract: The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of struts having first ends attached together along a longitudinal axis of the filter. Each strut has a body member extending from the first end along the longitudinal axis to an anchoring hook defining a strut axis. Each strut is configured to move along a strut path relative to the longitudinal axis between an expanded state for engaging with the blood vessel and a collapsed state for filter delivery or retrieval. Each anchoring hook has an angle of up to about 90 degrees relative to the strut axis.Type: GrantFiled: April 18, 2005Date of Patent: July 5, 2011Assignee: Cook Medical Technologies LLCInventors: Per Hendriksen, Allan G. Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne
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Patent number: 7892254Abstract: An embolization device for positioning in a blood vessel comprises an elongated wire body (1) which in its unloaded condition has a predetermined shape and has an elongated shape with a substantially straight center line during its insertion through a catheter (18) to a placement site in the blood vessel and after its release from the catheter assumes a complexly curved shape which depends on the predetermined shape and on the blood vessel impact on the wire body. In its predetermined shape the wire body has at least one section (4) located between its front and back ends in which the center line has substantially no curvature or such a small curvature that along a length of at least 20 mm it follows a helix-free path. The front end section (2, 2?, 2??) of the wire body is adapted to be frictionally locked to the vessel wall when discharged from the catheter, before said helix-free section (4) has been discharged from the catheter.Type: GrantFiled: March 30, 2004Date of Patent: February 22, 2011Assignee: William Cook, Europe A/SInventors: Henrik S. Klint, Arne Molgaard-Nielsen, Erik E. Rasmussen
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Publication number: 20100160956Abstract: The present invention provides a method of capturing thrombi in a blood vessel, which includes delivering a removable filter in a collapsed state within the blood vessel and deploying the filter to an expanded state within the blood vessel. The filter includes a plurality of primary struts and a plurality of secondary struts emanating from a hub and extending arcuately along a longitudinal axis and linearly radially. Each primary strut has an arcuate segment including first and second curved portions. Each secondary strut includes first and second arcs. The primary struts terminate with an anchoring hook. Each primary strut crosses another primary strut along the longitudinal axis in the collapsed state such that the arcuate segments occupy a first diameter and the anchoring hooks occupy a second diameter, the first diameter being greater than the second diameter for filter retrieval or delivery.Type: ApplicationFiled: March 4, 2010Publication date: June 24, 2010Applicants: Cook Incorporated, William Cook Europe ApsInventors: Per Hendriksen, Allan G. Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne, Rolf Gunther
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Patent number: 7699867Abstract: The present invention provides a removable vena cava filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts having first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut are configured to cross another primary strut along the longitudinal axis in the collapsed state such that the arcuate segments occupy a first diameter greater than a second diameter occupied by the anchoring hooks in the collapsed state for filter retrieval or delivery.Type: GrantFiled: April 18, 2005Date of Patent: April 20, 2010Assignees: Cook Incorporated, William Cook Europe APSInventors: Per Hendriksen, Allan G. Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne, Rolf Gunther
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Patent number: 7625390Abstract: The present invention provides a removable vena cava filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts having first ends attached together along a longitudinal axis. Each primary strut includes an arcuate segment having a first tensile strength. The arcuate segment extends from the first end to an anchoring hook. The anchoring hook is integral with the arcuate segment and having the first thickness and first tensile strength. The filter further comprises a plurality of secondary struts freely spaced between the primary struts and having connected ends attached together along the longitudinal axis. Each secondary strut freely extends from the connected end to a free end avoiding contact with other secondary struts and primary struts. Each secondary strut has a second tensile strength.Type: GrantFiled: April 18, 2005Date of Patent: December 1, 2009Assignee: Cook IncorporatedInventors: Per Hendriksen, Allan G. Hemmingsen, Arne Molgaard-Nielsen, Thomas A. Osborne, Rolf Gunther
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Publication number: 20090125103Abstract: There is disclosed a tri-leaflet valve (100) in which the leaflets (102) extend for substantially the entire length of the valve (100). The valve (100) is provide with a waist (106). An element (16) inserted in the tri-leaflet valve (100) can be sealed by closure of the valve (100), for example by pressurization or twisting. The seat is more effective then prior art seals.Type: ApplicationFiled: October 30, 2008Publication date: May 14, 2009Applicants: William Cook Europe ApS, Cook IncorporatedInventor: Arne Molgaard-Nielsen
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Publication number: 20090118681Abstract: The haemostatic valve assembly (10) includes a housing (14) with a chamber (16) therewithin. A flexible valve element (26) is located in the chamber (16) and supported by the housing (14). A source (28) of pressurized fluid can be fed into the chamber (16) through a port (18) in the housing (14). A catheter, dilator, pusher or other elongate insert fed through the haemostatic valve assembly (10) can be sealed by the application of fluid pressure into the chamber (16), which causes the sides of the valve element (26) to press against the insert (24) thereby to provide an effective seal.Type: ApplicationFiled: October 22, 2008Publication date: May 7, 2009Applicants: William Cook Europe, ApS, Cook IncorporatedInventor: Arne Molgaard-Nielsen
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Publication number: 20070203520Abstract: Endovascular filter (10) including a plurality of struts (14) with distal ends (18) adapted to anchor the filter to the vessel wall after deployment, such as by having barbs (20), the filter being adapted to be retrieved if desired. Strut distal ends (18) are coated with an antiproliferative agent (40) that inhibits the ingrowth of tissue around the filter, thereby permitting the filter to be retrieved and removed atraumatically after a prolonged period of time, thus extending the useful life of the retrievable filter. Optionally, the proximal end (22) of the filter may also be so coated, or the entire filter.Type: ApplicationFiled: January 16, 2007Publication date: August 30, 2007Inventors: Dennis Griffin, Arne Molgaard-Nielsen, Anthony Ragheb, Raymond Leonard, Neal Fearnot, William Voorhees, Thomas Kozma, Brian Bates, Thomas Osborne
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Publication number: 20070005095Abstract: The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts and a plurality of secondary struts. The plurality of primary struts has first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut is configured to cross another primary strut along the longitudinal axis in the collapsed state such that each anchoring hook faces the longitudinal axis away from the blood vessel for filter retrieval or delivery. The plurality of secondary struts has connected ends attached together along the longitudinal axis. The secondary struts extend therefrom to free ends to centralize the filter in the expanded in the blood vessel.Type: ApplicationFiled: April 18, 2005Publication date: January 4, 2007Inventors: Thomas Osborne, Arne Molgaard-Nielsen, Per Hendriksen, Allan Hemmingsen
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Publication number: 20060069406Abstract: A removable vena cava filter configured for simplified delivery to and retrieval from the vena cava of a patient is disclosed. The filter includes struts configured to be arranged in consistent orientation together between expanded (opened) and collapsed (closed) configurations, thereby minimizing entanglement of the struts. Each of the struts has a circumferential bend relative to the longitudinal axis of the filter. The circumferential bends allow for consistent orientation of the struts when moved between the expanded and collapsed configurations and when placed in the closed configuration of the filter.Type: ApplicationFiled: September 27, 2005Publication date: March 30, 2006Inventors: Per Hendriksen, Arne Molgaard-Nielsen, Thomas Osborne
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Publication number: 20050267512Abstract: The present invention provides a removable vena cava filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts having first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut are configured to cross another primary strut along the longitudinal axis in the collapsed state such that the arcuate segments occupy a first diameter greater than a second diameter occupied by the anchoring hooks in the collapsed state for filter retrieval or delivery.Type: ApplicationFiled: April 18, 2005Publication date: December 1, 2005Inventors: Thomas Osborne, Arne Molgaard-Nielsen, Per Hendriksen, Rolf Gunther
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Publication number: 20050267513Abstract: A removable filter having a collapsed state and an expanded state for capturing thrombi in a blood vessel is disclosed. The filter comprises a plurality of primary struts and a plurality of secondary struts. Each primary strut in the expanded state extends from a primary strut first end to an anchoring hook. Each primary strut extends arcuately along a longitudinal axis and linearly radially. The plurality of primary strut first ends are attached together along the longitudinal axis. Each secondary strut in the expanded state extends from a secondary strut first end to a free end. Each secondary strut extends arcuately along the longitudinal axis and linearly radially. The plurality of secondary struts are attached together along the longitudinal axis. The plurality of secondary struts centralize the filter in the expanded state in the blood vessel.Type: ApplicationFiled: April 18, 2005Publication date: December 1, 2005Inventors: Thomas Osborne, Arne Molgaard-Nielsen, Per Hendriksen, Rolf Gunther
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Publication number: 20050267514Abstract: The present invention provides a removable vena cava filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts having first ends attached together along a longitudinal axis. Each primary strut includes an arcuate segment having a first tensile strength. The arcuate segment extends from the first end to an anchoring hook. The anchoring hook is integral with the arcuate segment and having the first thickness and first tensile strength. The filter further comprises a plurality of secondary struts freely spaced between the primary struts and having connected ends attached together along the longitudinal axis. Each secondary strut freely extends from the connected end to a free end avoiding contact with other secondary struts and primary struts. Each secondary strut has a second tensile strength.Type: ApplicationFiled: April 18, 2005Publication date: December 1, 2005Inventors: Thomas Osborne, Arne Molgaard-Nielsen, Per Hendriksen, Rolf Gunther
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Publication number: 20050251199Abstract: The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of struts having first ends attached together along a longitudinal axis of the filter. Each strut has a body member extending from the first end along the longitudinal axis to an anchoring hook defining a strut axis. Each strut is configured to move along a strut path relative to the longitudinal axis between an expanded state for engaging with the blood vessel and a collapsed state for filter delivery or retrieval. Each anchoring hook has an angle of up to about 90 degrees relative to the strut axis.Type: ApplicationFiled: April 18, 2005Publication date: November 10, 2005Inventors: Thomas Osborne, Arne Molgaard-Nielsen, Per Hendriksen
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Publication number: 20040186491Abstract: An embolization device for positioning in a blood vessel comprises an elongated wire body (1) which in its unloaded condition has a predetermined shape and has an elongated shape with a substantially straight center line during its insertion through a catheter (18) to a placement site in the blood vessel and after its release from the catheter assumes a complexly curved shape which depends on the predetermined shape and on the blood vessel impact on the wire body. In its predetermined shape the wire body has at least one section (4) located between its front and back ends in which the center line has substantially no curvature or such a small curvature that along a length of at least 20 mm it follows a helix-free path. The front end section (2, 2″, 2′″) of the wire body is adapted to be frictionally locked to the vessel wall when discharged from the catheter, before said helix-free section (4) has been discharged from the catheter.Type: ApplicationFiled: March 30, 2004Publication date: September 23, 2004Applicant: William Cook, Europe A/SInventors: Henrik S. Klint, Arne Molgaard-Nielsen, Erik E. Rasmussen
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Patent number: 6776788Abstract: An embolization device for positioning in a blood vessel comprises an elongated wire body (1) which in its unloaded condition has a predetermined shape and has an elongated shape with a substantially straight center line during its insertion through a catheter (18) to a placement site in the blood vessel and after its release from the catheter assumes a complexly curved shape which depends on the predetermined shape and on the blood vessel impact on the wire body. In its predetermined shape the wire body has at least one section (4) located, between its front and back ends in which the center line has substantially no curvature or such a small curvature that along a length of at least 20 mm it follows a helix-free path. The front end section (2, 2″, 2′″) of the wire body is adapted to be frictionally locked to the vessel wall when discharged from the catheter, before said helix-free section (4) has been discharged from the catheter.Type: GrantFiled: September 3, 1997Date of Patent: August 17, 2004Assignee: William Cook, Europe A/SInventors: Henrik S. Klint, Arne Molgaard-Nielsen, Erik E. Rasmussen