Patents by Inventor Sigurdur Gisli KARLSSON
Sigurdur Gisli KARLSSON 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: 20170360580Abstract: A prosthetic knee includes a housing and a brake member pivotally connected to the housing at a first location point. The brake member defines a first pair of slots along a posterior surface of the brake member. A knee shaft extends through the brake member and is secured within a cavity defined by the housing. The knee shaft defines a second plurality of slots along a posterior surface of the knee shaft corresponding in location to the first slots. An extension assist system includes an extension assist link with a body portion and a plurality of arm portions situated in the first slots defined in the brake member and in the second slots defined in the knee shaft. The arm portions are pivotally connected to the knee shaft at a second location point located within the second slots and a distance from the first location point.Type: ApplicationFiled: September 1, 2017Publication date: December 21, 2017Inventors: Sigurdur Gisli KARLSSON, Sigurdur OLAFSSON, Sigurdur HANNESSON
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Patent number: 9844448Abstract: A prosthetic knee for active users has a locking head generally parallel to a vertical axis of the prosthetic knee, a chassis, and a plurality of links connecting the locking head to the chassis. The knee includes a swing control mechanism having a flexion stop connected to the chassis and arranged to control the flexion angle of the knee. The flexion stop extends outwardly from the chassis and obliquely relative to the vertical axis. The knee has an audible feedback mechanism for providing the user with information about the location of the knee. The knee may also have a block lock forming a manually activated mechanism allowing load bearing in a flexed position.Type: GrantFiled: August 31, 2015Date of Patent: December 19, 2017Assignee: OSSUR HFInventors: Sigurdur Gisli Karlsson, Sigurdur Hannesson, Sigurdur Olafsson
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Patent number: 9770346Abstract: A prosthetic knee includes a housing, a chassis, and a brake member pivotally connected to the housing at a first location point and to the chassis at a second location point. A knee shaft extends through the brake member and is secured within a cavity defined by the housing. An extension assist system includes a biasing mechanism located inside of the chassis and an extension assist link. The extension assist link includes a body portion operatively connected to the biasing mechanism and a pair of arm portions situated in at least one slot defined by the knee shaft. The arm portions are pivotally connected to the knee shaft at a third location point located a distance from the first location point.Type: GrantFiled: February 17, 2015Date of Patent: September 26, 2017Assignee: OSSUR HFInventors: Sigurdur Gisli Karlsson, Sigurdur Olafsson, Sigurdur Hannesson
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Patent number: 9730814Abstract: A prosthetic knee provides security and stability, particularly to low activity users, household and limited community ambulators, single and/or slow speed ambulators, and those with little voluntary control, while also balancing walking (dynamic) performance for low activity users. The prosthetic knee includes a housing, parallel anterior links, a posterior link, and a chassis. The geometry of the links and their relationship to one another allow for low voluntary control, shortening of mid-swing, which reduces stumbling risk, and geometric stability in stance. The anterior links are particularly oriented, sized and located to provide for stability. The anterior links both extend above the posterior link and substantially below the posterior link. The prosthetic knee includes a locking mechanism arranged to arrest movement of the posterior link. The knee including a locking mechanism connected to the housing and arranged to block rotation of the posterior link.Type: GrantFiled: May 16, 2014Date of Patent: August 15, 2017Assignee: OSSUR HFInventors: Bjorn Omarsson, Sigurdur Gisli Karlsson, Sigurdur Olafsson, Gudlaugur Olafsson, David Landry
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Publication number: 20150366679Abstract: A prosthetic knee for active users has a locking head generally parallel to a vertical axis of the prosthetic knee, a chassis, and a plurality of links connecting the locking head to the chassis. The knee includes a swing control mechanism having a flexion stop connected to the chassis and arranged to control the flexion angle of the knee. The flexion stop extends outwardly from the chassis and obliquely relative to the vertical axis. The knee has an audible feedback mechanism for providing the user with information about the location of the knee. The knee may also have a block lock forming a manually activated mechanism allowing load bearing in a flexed position.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Inventors: Sigurdur Gisli KARLSSON, Sigurdur HANNESSON, Sigurdur OLAFSSON
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Patent number: 9149371Abstract: A prosthetic knee for active users has a locking head generally parallel to a vertical axis of the prosthetic knee, a chassis, and a plurality of links connecting the locking head to the chassis. The knee includes a swing control mechanism having a flexion stop connected to the chassis and arranged to control the flexion angle of the knee. The flexion stop extends outwardly from the chassis and obliquely relative to the vertical axis. The knee has an audible feedback mechanism for providing the user with information about the location of the knee. The knee may also have a block lock forming a manually activated mechanism allowing load bearing in a flexed position.Type: GrantFiled: April 5, 2013Date of Patent: October 6, 2015Assignee: OSSUR HFInventors: Sigurdur Gisli Karlsson, Sigurdur Hannesson, Sigurdur Olafsson
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Publication number: 20150230942Abstract: A prosthetic knee includes a housing, a chassis, and a brake member pivotally connected to the housing at a first location point and to the chassis at a second location point. A knee shaft extends through the brake member and is secured within a cavity defined by the housing. An extension assist system includes a biasing mechanism located inside of the chassis and an extension assist link. The extension assist link includes a body portion operatively connected to the biasing mechanism and a pair of arm portions situated in at least one slot defined by the knee shaft. The arm portions are pivotally connected to the knee shaft at a third location point located a distance from the first location point.Type: ApplicationFiled: February 17, 2015Publication date: August 20, 2015Inventors: Sigurdur Gisli KARLSSON, Sigurdur OLAFSSON, Sigurdur HANNESSON
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Publication number: 20140249651Abstract: A prosthetic knee provides security and stability, particularly to low activity users, household and limited community ambulators, single and/or slow speed ambulators, and those with little voluntary control, while also balancing walking (dynamic) performance for low activity users. The prosthetic knee includes a housing, parallel anterior links, a posterior link, and a chassis. The geometry of the links and their relationship to one another allow for low voluntary control, shortening of mid-swing, which reduces stumbling risk, and geometric stability in stance. The anterior links are particularly oriented, sized and located to provide for stability. The anterior links both extend above the posterior link and substantially below the posterior link. The prosthetic knee includes a friction adjustment mechanism, a stability adjustment mechanism, and an adjustable extension assist mechanism.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Applicant: OSSUR HFInventors: Bjorn OMARSSON, Sigurdur Gisli KARLSSON, Sigurdur OLAFSSON, Gudlaugur OLAFSSON, David LANDRY
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Patent number: 8764849Abstract: A prosthetic knee provides security and stability, particularly to low activity users, household and limited community ambulators, single and/or slow speed ambulators, and those with little voluntary control, while also balancing walking (dynamic) performance for low activity users. The prosthetic knee includes a housing, parallel anterior links, a posterior link, and a chassis. The geometry of the links and their relationship to one another allow for low voluntary control, shortening of mid-swing, which reduces stumbling risk, and geometric stability in stance. The anterior links are particularly oriented, sized and located to provide for stability. The anterior links both extend above the posterior link and substantially below the posterior link. The prosthetic knee includes a friction adjustment mechanism, a stability adjustment mechanism, and an adjustable extension assist mechanism.Type: GrantFiled: May 31, 2012Date of Patent: July 1, 2014Assignee: OSSUR HFInventors: Bjorn Omarsson, Sigurdur Gisli Karlsson, Sigurdur Olafsson, Gudlaugur Olafsson, David Landry
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Publication number: 20130268092Abstract: A prosthetic knee for active users has a locking head generally parallel to a vertical axis of the prosthetic knee, a chassis, and a plurality of links connecting the locking head to the chassis. The knee includes a swing control mechanism having a flexion stop connected to the chassis and arranged to control the flexion angle of the knee. The flexion stop extends outwardly from the chassis and obliquely relative to the vertical axis. The knee has an audible feedback mechanism for providing the user with information about the location of the knee. The knee may also have a block lock forming a manually activated mechanism allowing load bearing in a flexed position.Type: ApplicationFiled: April 5, 2013Publication date: October 10, 2013Applicant: Ossur HFInventors: Sigurdur Gisli Karlsson, Sigurdur Hannesson, Sigurdur Olafsson
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Publication number: 20120310372Abstract: A prosthetic knee provides security and stability, particularly to low activity users, household and limited community ambulators, single and/or slow speed ambulators, and those with little voluntary control, while also balancing walking (dynamic) performance for low activity users. The prosthetic knee includes a housing, parallel anterior links, a posterior link, and a chassis. The geometry of the links and their relationship to one another allow for low voluntary control, shortening of mid-swing, which reduces stumbling risk, and geometric stability in stance. The anterior links are particularly oriented, sized and located to provide for stability. The anterior links both extend above the posterior link and substantially below the posterior link. The prosthetic knee includes a friction adjustment mechanism, a stability adjustment mechanism, and an adjustable extension assist mechanism.Type: ApplicationFiled: May 31, 2012Publication date: December 6, 2012Inventors: Bjorn OMARSSON, Sigurdur Gisli KARLSSON, Sigurdur OLAFSSON, Gudlaugur OLAFSSON, David LANDRY
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Patent number: D733883Type: GrantFiled: May 31, 2011Date of Patent: July 7, 2015Assignee: OSSUR HFInventors: Bjorn Omarsson, Sigurdur Gisli Karlsson, Sigurgur Olafsson