Patents by Inventor Sigurdur Olafsson
Sigurdur Olafsson 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: 10420656Abstract: A prosthetic adapter including a lower connector, an upper connector rotatably coupled to the lower connector, and a locking mechanism for preventing the upper connector from rotating relative to the lower connector. The locking mechanism is arranged to generally automatically retain a locked position when the lower connector is rotated to an original, predetermined alignment. An activation member is connected to and arranged for operating the locking mechanism.Type: GrantFiled: February 17, 2017Date of Patent: September 24, 2019Assignee: OSSUR HFInventors: Sigurdur Olafsson, Gudni Ingimarsson, David Landry
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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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Patent number: 9687365Abstract: An ankle module for a prosthetic foot can have an adapter portion pivotally coupled to a base portion. The base portion can be coupled to the prosthetic foot. The adapter portion can have a coupling member that removably couples the prosthetic foot to a prosthetic pylon or socket. The adapter portion can also have cylinders housing pistons slidably displaceable within the cylinders. An actuator is selectively actuatable to place the cylinders in fluid communication, allowing a fluid to flow between the cylinders as an angular position of the adapter portion is adjusted relative to the base portion, thereby adjusting the dorsi-plantar position between the adapter portion and the base portion of the ankle module. The actuator can be selectively actuatable to fluidly isolate the cylinders from each other so that the angular position of the adapter portion relative to the base portion remains substantially fixed.Type: GrantFiled: August 19, 2015Date of Patent: June 27, 2017Assignee: Össur hfInventors: Sigurdur Ásgeirsson, David Landry, Sigurdur Olafsson, Grímur Jónsson, Arinbjörn V. Clausen, Gudni Ingimarsson
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Publication number: 20170156893Abstract: A prosthetic adapter including a lower connector, an upper connector rotatably coupled to the lower connector, and a locking mechanism for preventing the upper connector from rotating relative to the lower connector. The locking mechanism is arranged to generally automatically retain a locked position when the lower connector is rotated to an original, predetermined alignment. An activation member is connected to and arranged for operating the locking mechanism.Type: ApplicationFiled: February 17, 2017Publication date: June 8, 2017Inventors: Sigurdur OLAFSSON, Gudni INGIMARSSON, David LANDRY
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Patent number: 9572689Abstract: A prosthetic adapter including a lower connector, an upper connector rotatably coupled to the lower connector, and a locking mechanism for preventing the upper connector from rotating relative to the lower connector. The locking mechanism is arranged to generally automatically retain a locked position when the lower connector is rotated to an original, predetermined alignment. An activation member is connected to and arranged for operating the locking mechanism.Type: GrantFiled: February 7, 2014Date of Patent: February 21, 2017Assignee: OSSUR hfInventors: Sigurdur Olafsson, Gudni Ingimarsson, David Landry
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Publication number: 20160051381Abstract: An ankle module for a prosthetic foot can have an adapter portion pivotally coupled to a base portion. The base portion can be coupled to the prosthetic foot. The adapter portion can have a coupling member that removably couples the prosthetic foot to a prosthetic pylon or socket. The adapter portion can also have cylinders housing pistons slidably displaceable within the cylinders. An actuator is selectively actuatable to place the cylinders in fluid communication, allowing a fluid to flow between the cylinders as an angular position of the adapter portion is adjusted relative to the base portion, thereby adjusting the dorsi-plantar position between the adapter portion and the base portion of the ankle module. The actuator can be selectively actuatable to fluidly isolate the cylinders from each other so that the angular position of the adapter portion relative to the base portion remains substantially fixed.Type: ApplicationFiled: August 19, 2015Publication date: February 25, 2016Inventors: Sigurdur Ásgeirsson, David Landry, Sigurdur Olafsson, Grímur Jónsson, Arinbjörn V. Clausen, Gudni Ingimarsson
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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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Patent number: 9114029Abstract: An ankle module for a prosthetic foot can have an adapter portion pivotally coupled to a base portion. The base portion can be coupled to the prosthetic foot. The adapter portion can have a coupling member that removably couples the prosthetic foot to a prosthetic pylon or socket. The adapter portion can also have cylinders housing pistons slidably displaceable within the cylinders. An actuator is selectively actuatable to place the cylinders in fluid communication, allowing a fluid to flow between the cylinders as an angular position of the adapter portion is adjusted relative to the base portion, thereby adjusting the dorsi-plantar position between the adapter portion and the base portion of the ankle module. The actuator can be selectively actuatable to fluidly isolate the cylinders from each other so that the angular position of the adapter portion relative to the base portion remains substantially fixed.Type: GrantFiled: September 19, 2012Date of Patent: August 25, 2015Assignee: Össur hfInventors: Sigurdur Ásgeirsson, David Landry, Sigurdur Olafsson, Grímur Jónsson, Arinbjörn V. Clausen, Gudni Ingimarsson
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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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Patent number: 8992630Abstract: An adapter assembly allows mechanical coupling of prosthetic components such that a distal end of a socket adapter extends below a top surface of a prosthetic. The adapter assembly may include sets of external threads to operatively engage internally threaded surfaces of the prosthetic and the socket adapter.Type: GrantFiled: May 24, 2012Date of Patent: March 31, 2015Assignee: Össur hfInventors: Sigurdur Olafsson, Helgi Jonsson
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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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Publication number: 20140222166Abstract: A prosthetic adapter including a lower connector, an upper connector rotatably coupled to the lower connector, and a locking mechanism for preventing the upper connector from rotating relative to the lower connector. The locking mechanism is arranged to generally automatically retain a locked position when the lower connector is rotated to an original, predetermined alignment. An activation member is connected to and arranged for operating the locking mechanism.Type: ApplicationFiled: February 7, 2014Publication date: August 7, 2014Applicant: OSSUR hfInventors: Sigurdur OLAFSSON, Gudni INGIMARSSON, 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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Patent number: 8603190Abstract: A momentum free bearing assembly for use in orthotic and prosthetic devices and a prosthetic knee incorporating the same are disclosed. The bearing assembly includes an engaging ring having a swivel portion received within the engaging ring. The engaging ring is received within a bore in a mount. Retainer rings may be placed on either side of the engaging ring within the bore to retain the engaging ring within the mount. Seals having sealing members may be provided on either side of the engaging ring to seal the engaging ring within the mount. A cylindrical rod engages the swivel portion and the seal through bores provided in each of the seal and the swivel portion. The ends of the cylindrical rod can be press-fit within bores on a mount and a frame of a prosthetic knee.Type: GrantFiled: December 28, 2011Date of Patent: December 10, 2013Assignee: Ossur HFInventors: Sigurdur Olafsson, Gudni Ingimarsson, Helgi Jonsson
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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