Patents by Inventor Palle Hansen
Palle Hansen 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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Publication number: 20240075255Abstract: An introducer assembly includes a balloon catheter, a medical balloon at the distal end of the catheter. On the outside of the balloon catheter and medical balloon is a roll-sock sheath. The sheath is in formed of two layers able to slide over one other extending towards the proximal end of the assembly. The roll-sock sheath extends to a distal fold line which, before employment, extends over at least a portion of dilator tip and covers completely the medical balloon. The roll-sock sheath can be pulled back by withdrawing the outer layer of the roll-sock sheath, gradually to expose the medical balloon. A hydrophilic coating is provided on the outer surface of the outer layer of the roll-sock sleeve, which promotes the pushability of the balloon catheter assembly through a lesion. The coating makes it easier to push the distal end of the catheter assembly through a lesion, reduces friction between the lesion and the distal end of the balloon catheter assembly.Type: ApplicationFiled: September 5, 2023Publication date: March 7, 2024Inventor: Palle Hansen
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Patent number: 10117736Abstract: The disclosure provides a filter apparatus and method of filtering in a body vessel. The filter apparatus comprises a filter unit and an expandable introducer designed to deliver the filter unit to the target filtering site. The filter unit attaches to the expandable introducer via a plurality of anchors on the filter unit. The expandable introducer delivers and presses the anchors to the vessel wall during implantation. After implantation, the filter unit exerts minimal or about zero radial force against the vessel wall.Type: GrantFiled: August 5, 2015Date of Patent: November 6, 2018Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Jeppe Dufresne Johnsen, Bent Oehlenschlaeger, Erik Rasmussen, Palle Hansen
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Patent number: 9393096Abstract: A filter device for trapping embolic debris comprises a bag which is deployed by everting it from an end of a delivery catheter. After release from the catheter, with the assistance of a pusher member, the open end of the bag self-expands against the walls of a body lumen. In one method of removal after use, the device is withdrawn into catheter by pulling on a wire attached to the closed end of the bag.Type: GrantFiled: March 2, 2012Date of Patent: July 19, 2016Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Palle Hansen, Per Hendriksen, Jacob Lund-Clausen, Erik Rasmussen
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Publication number: 20160038271Abstract: The disclosure provides a filter apparatus and method of filtering in a body vessel. The filter apparatus comprises a filter unit and an expandable introducer designed to deliver the filter unit to the target filtering site. The filter unit attaches to the expandable introducer via a plurality of anchors on the filter unit. The expandable introducer delivers and presses the anchors to the vessel wall during implantation. After implantation, the filter unit exerts minimal or about zero radial force against the vessel wall.Type: ApplicationFiled: August 5, 2015Publication date: February 11, 2016Inventors: Jeppe Dufresne Johnsen, Bent Oehlenschlaeger, Erik Rasmussen, Palle Hansen
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Patent number: 8932467Abstract: The invention relates to a method and a system for the pretreatment of lignocellulosic material by thermal hydrolysis, in particular with a view to producing bioethenol, wherein the material is first admixed with water and is then passed to a reactor, in which the soaked material is subjected to a high temperature and a high pressure to such an extent that is it accessible for a subsequent treatment with enzymes, following which the treated material is separated into liquid part and a solid part, where the solid component is subsequently used for the production of bioethenol and enzymation and fermentation. Exclusively steam is used in the method and the corresponding system for heating, stirring and transport, as e.g. the transport through the various elements of the system is provided by a pressure difference between the compartments of the elements. The material (32) is discharged to an economizer (4), in which a separator (5) separates the material into a solid part and a liquid part.Type: GrantFiled: July 24, 2008Date of Patent: January 13, 2015Assignee: Haarslev A/SInventors: Peder Fosbol, Palle Hansen
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Publication number: 20130338703Abstract: A filter device for trapping embolic debris comprises a bag which is deployed by everting it from an end of a delivery catheter. After release from the catheter, with the assistance of a pusher member, the open end of the bag self-expands against the walls of a body lumen. In one method of removal after use, the device is withdrawn into catheter by pulling on a wire attached to the closed end of the bag.Type: ApplicationFiled: March 2, 2012Publication date: December 19, 2013Inventors: Palle Hansen, Per Hendriksen, Jacob Lund-Clausen, Erik Rasmussen
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Patent number: 8092468Abstract: A deployment handle (112) for an implant deployment device (10) facilitates withdrawal of a sheath (18). The deployment handle (112) includes two separate actuators: a trigger (130) and a sliding actuator (330). The trigger (130) can be used to effect small step-wise movement of a carriage (120) that is connected to a sheath (18) to be withdrawn. The sliding actuator (330) can be used to effect continuous movement of a carriage (120) to withdraw a sheath (18). In order to transmit movement of either the trigger (130) or the sliding actuator (330) to the carriage (120), a flexible rack (380) is used. The flexible rack (380) includes upper teeth (390) and lower teeth (395) for engagement with the trigger (130) and the sliding actuator (330) respectively. The ability of the flexible rack (380) to bend back on itself means that unnecessary elongation of the deployment handle (112) is avoided.Type: GrantFiled: December 22, 2008Date of Patent: January 10, 2012Assignee: Cook Medical Technologies LLCInventor: Palle Hansen
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Publication number: 20100216202Abstract: The invention relates to a method and a system for the pretreatment of lignocellulosic material by thermal hydrolysis, in particular with a view to producing bioethenol, wherein the material is first admixed with water and is then passed to a reactor, in which the soaked material is subjected to a high temperature and a high pressure to such an extent that is it accessible for a subsequent treatment with enzymes, following which the treated material is separated into liquid part and a solid part, where the solid component is subsequently used for the production of bioethenol and enzymation and fermentation. Exclusively steam is used in the method and the corresponding system for heating, stirring and transport, as e.g. the transport through the various elements of the system is provided by a pressure difference between the compartments of the elements. The material (32) is discharged to an economizer (4), in which a separator (5) separates the material into a solid part and a liquid part.Type: ApplicationFiled: July 24, 2008Publication date: August 26, 2010Applicant: HAARSLEV A/SInventors: Peder Fosbol, Palle Hansen
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Publication number: 20090254168Abstract: A system for delivery of a medical device to a target site within the body of a patient includes an introducer sheath, and a delivery assembly receivable within a passageway of the sheath. The delivery assembly comprises an inner tubular and an outer tubular member. At least a distal portion of the inner tubular member has a diameter such that the medical device is receivable thereover. The outer tubular member is generally coaxial with the inner tubular member, and has a length such that the outer tubular member distal end terminates proximal to the inner tubular member distal portion. The outer tubular member has a first outer diameter at the proximal end and extends for a length of the outer tubular member to a first diameter boundary point. The outer tubular member has a gradual inward taper in the distal direction from the boundary point to a second outer diameter, and has an abrupt outward taper in the distal direction from the second diameter to the first diameter.Type: ApplicationFiled: June 18, 2009Publication date: October 8, 2009Applicants: Cook Incorporated, William Cook Europe ApSInventors: Fred T. Parker, Palle Hansen, Nathaniel A. Irwin
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Patent number: 7566342Abstract: A system for delivery of a medical device to a target site within the body of a patient includes an introducer sheath, and a delivery assembly receivable within a passageway of the sheath. The delivery assembly comprises an inner tubular and an outer tubular member. At least a distal portion of the inner tubular member has a diameter such that the medical device is receivable thereover. The outer tubular member is generally coaxial with the inner tubular member, and has a length such that the outer tubular member distal end terminates proximal to the inner tubular member distal portion. The outer tubular member has a first outer diameter at the proximal end and extends for a length of the outer tubular member to a first diameter boundary point. The outer tubular member has a gradual inward taper in the distal direction from the boundary point to a second outer diameter, and has an abrupt outward taper in the distal direction from the second diameter to the first diameter.Type: GrantFiled: December 27, 2007Date of Patent: July 28, 2009Assignee: Cook IncorporatedInventors: Fred T. Parker, Palle Hansen, Nathaniel A. Irwin
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Publication number: 20090171428Abstract: A deployment handle (112) for an implant deployment device (10) facilitates withdrawal of a sheath (18). The deployment handle (112) includes two separate actuators: a trigger (130) and a sliding actuator (330). The trigger (130) can be used to effect small step-wise movement of a carriage (120) that is connected to a sheath (18) to be withdrawn. The sliding actuator (330) can be used to effect continuous movement of a carriage (120) to withdraw a sheath (18). In order to transmit movement of either the trigger (130) or the sliding actuator (330) to the carriage (120), a flexible rack (380) is used. The flexible rack (380) includes upper teeth (390) and lower teeth (395) for engagement with the trigger (130) and the sliding actuator (330) respectively. The ability of the flexible rack (380) to bend back on itself means that unnecessary elongation of the deployment handle (112) is avoided.Type: ApplicationFiled: December 22, 2008Publication date: July 2, 2009Applicants: William Cook Europe ApS, Cook IncorporatedInventor: Palle Hansen
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Publication number: 20090171300Abstract: A system for delivery of a medical device to a target site within the body of a patient includes an introducer sheath, and a delivery assembly receivable within a passageway of the sheath. The delivery assembly comprises an inner tubular and an outer tubular member. At least a distal portion of the inner tubular member has a diameter such that the medical device is receivable thereover. The outer tubular member is generally coaxial with the inner tubular member, and has a length such that the outer tubular member distal end terminates proximal to the inner tubular member distal portion. The outer tubular member has a first outer diameter at the proximal end and extends for a length of the outer tubular member to a first diameter boundary point. The outer tubular member has a gradual inward taper in the distal direction from the boundary point to a second outer diameter, and has an abrupt outward taper in the distal direction from the second diameter to the first diameter.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Applicants: Cook Incorporated, William Cook Europe ApSInventors: Fred T. Parker, Palle Hansen, Nathaniel A. Irwin
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Publication number: 20050090893Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.Type: ApplicationFiled: October 28, 2004Publication date: April 28, 2005Inventors: Zaza Kavteladze, Aleksandr Korshok, Andrej Kadnikov, Palle Hansen, Beth Kirts
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Patent number: 6814750Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) having a tubular wire frame (1) with rows of elongate cells (2) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.Type: GrantFiled: May 7, 2002Date of Patent: November 9, 2004Assignees: William Cook Europe A/S, Cook IncorporatedInventors: Zaza A. Kavteladze, Aleksandr P. Korshok, Andrej A. Kadnikov, Palle Hansen, Beth Ann Kirts
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Publication number: 20020128707Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.Type: ApplicationFiled: May 7, 2002Publication date: September 12, 2002Inventors: Zaza A. Kavteladze, Aleksandr P. Korshok, Andrej A. Kadnikov, Palle Hansen, Beth Ann Kirts
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Patent number: 6383216Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) have a tubular wire frame (1) with rows of elongate cells (2) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.Type: GrantFiled: August 24, 2000Date of Patent: May 7, 2002Assignees: William Cook Europe A/S, Cook IncorporatedInventors: Zaza A. Kavteladze, Aleksandr P. Korshok, Andrej A. Kadnikov, Palle Hansen, Beth Ann Kirts
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Patent number: 6336938Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.Type: GrantFiled: May 25, 1995Date of Patent: January 8, 2002Assignees: William Cook Europe A/S, Cook IncorporatedInventors: Zaza A. Kavteladze, Aleksandr P. Korshok, Andrej A. Kadnikov, Palle Hansen, Beth Ann Kirts
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Patent number: D380831Type: GrantFiled: February 2, 1995Date of Patent: July 8, 1997Assignee: William Cook Europe A/SInventors: Zaza A. Kavteladze, Aleksandr P. Korshok, Andrej A. Kadnikov, Palle Hansen, Beth Ann Kirts