Patents by Inventor Lars Oster
Lars Oster 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: 11602382Abstract: A device for fixation of inner and outer bone fragments comprises at least three fixation means (5), at least one tilting preventing means (6) and a securing plate (7). The fixation means (5) are configured to allow, during secondary compression of the inner and outer bone fragments (2, 3), a sliding movement of the fixation means and said outer bone fragment relative to one another and thereby an interruption of an engagement of the securing plate (7) with the outer bone fragment (3) without affecting the angular position of the fixation means relative to the securing plate and relative to one another. The tilting preventing means (6) is configured to allow, during said secondary compression, a sliding movement of the at least one tilting preventing means and said outer bone fragment (3) relative to one another and thereby an interruption of the engagement of the securing plate (7) with the outer bone fragment.Type: GrantFiled: April 27, 2018Date of Patent: March 14, 2023Assignee: SWEMAC INNOVATION ABInventors: Henrik Hansson, Lars Öster
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Patent number: 11529178Abstract: A targeting device (100) for use in fixation of bone fragments at a bone fracture. The targeting device comprises an elongated body portion (110) comprising a first body end (111), an opposed second body end (112), and body through holes (113a, 113b, 113c) extending from the first body end to the second body end for guiding a respective fixation means (303; 303a, 303b, 303c) through the body portion. In its second body end the body portion is configured with a snap-fitting means (114) configured to removably attach a fixation plate (150) to the body portion such that fixation through holes (151) of the plate are located in line with a respective body through hole and, when in use, to provide a surface of the plate to abut a surface of an outer bone fragment for subsequent fixation of the plate to the fragment. The targeting device comprises further a bracket (120).Type: GrantFiled: December 20, 2017Date of Patent: December 20, 2022Assignee: SWEMAC INNOVATION ABInventors: Henrik Hansson, Lars Öster
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Patent number: 11234828Abstract: A prosthesis for reconstruction of a distal radioulnar joint, after resection of a part of the ulna, includes a first prosthesis member, fixation members and a second prosthesis member. The first prosthesis member is configured for fixation to the distal end portion of the ulna. The fixation members are configured to extend into the radius via said distal end portion of the ulna for locking said distal end portion of the ulna to the radius. The second prosthesis member is configured for fixation to the ulna close to said distal end portion of the ulna. The second prosthesis member is also configured to extend into said space for being joined with the first prosthesis member in a manner which allows said first and second prosthesis members to at least pivot and rotate relative to each other.Type: GrantFiled: October 28, 2016Date of Patent: February 1, 2022Assignee: SWEMAC INNOVATION ABInventors: Henrik Hansson, Lars Oster, Michael Ullman, Lars Adolfsson
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Publication number: 20210236181Abstract: A device for fixation of inner and outer bone fragments comprises at least three fixation means (5), at least one tilting preventing means (6) and a securing plate (7). The fixation means (5) are configured to allow, during secondary compression of the inner and outer bone fragments (2, 3), a sliding movement of the fixation means and said outer bone fragment relative to one another and thereby an interruption of an engagement of the securing plate (7) with the outer bone fragment (3) without affecting the angular position of the fixation means relative to the securing plate and relative to one another. The tilting preventing means (6) is configured to allow, during said secondary compression, a sliding movement of the at least one tilting preventing means and said outer bone fragment (3) relative to one another and thereby an interruption of the engagement of the securing plate (7) with the outer bone fragment.Type: ApplicationFiled: April 27, 2018Publication date: August 5, 2021Inventors: Henrik Hansson, Lars Öster
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Publication number: 20200305939Abstract: A targeting device (100) for use in fixation of bone fragments at a bone fracture. The targeting device comprises an elongated body portion (110) comprising a first body end (111), an opposed second body end (112), and body through holes (113a, 113b, 113c) extending from the first body end to the second body end for guiding a respective fixation means (303; 303a, 303b, 303c) through the body portion. In its second body end the body portion is configured with a snap-fitting means (114) configured to removably attach a fixation plate (150) to the body portion such that fixation through holes (151) of the plate are located in line with a respective body through hole and, when in use, to provide a surface of the plate to abut a surface of an outer bone fragment for subsequent fixation of the plate to the fragment. The targeting device comprises further a bracket (120).Type: ApplicationFiled: December 20, 2017Publication date: October 1, 2020Inventors: Henrik Hansson, Lars Öster
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Patent number: 10500056Abstract: The invention relates to an attachment member (2) and a connecting member (16) for a carpometacarpal thumb joint prosthesis (1) as well as to said thumb joint prosthesis. The attachment member (2) comprises a screw-like part (4) for attachment by screwing into the second metacarpal bone and a locking device (8) for locking the screw-like part to the connecting member (16). The connecting member comprises an elongated, arcuate element (16) which at one end portion (16a) thereof is configured with a hole (14) for connection to the attachment member (2) for the second metacarpal bone and which at the opposite end portion (16b) thereof is configured with a hole (15) for connection to an attachment member (3) for the first metacarpal bone.Type: GrantFiled: December 10, 2013Date of Patent: December 10, 2019Assignee: SWEMAC INNOVATION ABInventors: Lars Oster, Greg Packer
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Publication number: 20190254833Abstract: A prosthesis (1) for reconstruction of a distal radioulnar joint after resection of a part of the ulna close to a distal end portion (U1) thereof, comprises a first prosthesis member (2), fixation means (3) and a second prosthesis member (4). The first prosthesis member (2) is configured for fixation to the distal end portion (U1) of the ulna. The fixation means (3) are configured to extend into the radius via said distal end portion of the ulna for locking said distal end portion of the ulna to the radius. The second prosthesis member (4) is configured for fixation to the ulna (U2) proximally of a space (US) which is defined between the distal end portion (U1) of the ulna and the ulna proximally of said space by the resection of said part of the ulna close to said distal end portion of the ulna.Type: ApplicationFiled: October 28, 2016Publication date: August 22, 2019Inventors: Henrik Hansson, Lars Oster, Michael Ullman, Lars Adolfsson
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Patent number: 10213316Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: GrantFiled: March 28, 2018Date of Patent: February 26, 2019Assignee: SWEMAC INNOVATION ABInventor: Lars Oster
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Patent number: 10117692Abstract: A fixing means (1) for fixation of bone fragments at bone fractures comprises a sleeve (2) and at least one pin (9) which is provided in said sleeve and a front end portion (10) of which can be driven out and retracted through a side opening (8) in the sleeve such that said end portion can be brought to engage bone material in one of the bone fragments and retracted out of the bone material. For facilitating said driving and retraction, the pin (9) comprises a fixing member (9a) with said front end portion (10) and a driving and retraction member (9b) which is rotatably connected to the fixing member.Type: GrantFiled: October 12, 2012Date of Patent: November 6, 2018Assignee: SWEMAC INNOVATION ABInventors: Henrik Hansson, Lars Oster
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Publication number: 20180214277Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Inventor: Lars Oster
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Patent number: 10010425Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: GrantFiled: August 12, 2016Date of Patent: July 3, 2018Assignee: SWEMAC INNOVATION ABInventor: Lars Oster
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Patent number: 9993348Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: GrantFiled: August 12, 2016Date of Patent: June 12, 2018Assignee: Swemac Innovation ABInventor: Lars Oster
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Publication number: 20160374816Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: ApplicationFiled: August 12, 2016Publication date: December 29, 2016Inventor: Lars Oster
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Publication number: 20160374817Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: ApplicationFiled: August 12, 2016Publication date: December 29, 2016Inventor: Lars Oster
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Publication number: 20160302935Abstract: The invention relates to an attachment member (2) and a connecting member (16) for a carpometacarpal thumb joint prosthesis (1) as well as to said thumb joint prosthesis. The attachment member (2) comprises a screw-like part (4) for attachment by screwing into the second meta-carpal bone and a locking device (8) for locking the screw-like part to the connecting member (16). The connecting member comprises an elongated, arcuate element (16) which at one end portion (16a) thereof is configured with a hole (14) for connection to the attachment member (2) for the second metacarpal bone and which at the opposite end portion (16b) thereof is configured with a hole (15) for connection to an attachment member (3) for the first metacarpal bone.Type: ApplicationFiled: December 10, 2013Publication date: October 20, 2016Inventors: Lars Oster, Greg Packer
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Patent number: 9445912Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.Type: GrantFiled: December 27, 2011Date of Patent: September 20, 2016Assignee: Swemac Innovation ABInventor: Lars Oster
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Publication number: 20150305788Abstract: A prosthesis member of a joint prosthesis for a thumb joint comprises a screw-like part (4) and an articulating socket element (6) with a mounting pin (9) which is insertable into a hole (8) in the screw-like part for attaching the articulating socket element thereto. The screw-like part (4) of the prosthesis member (2) is configured with a first fixing portion (15) which is provided with a first external thread (17) for attachment by screwing and fastening of said prosthesis member to the hard outer part (T1) of the trapezium (T), and a second fixing portion (18) having a less diameter than the diameter of the first fixing portion and being provided with a second external thread (19) which is configured to permit attachment by screwing and fastening of said prosthesis member to the soft inner part (T2) of the trapezium.Type: ApplicationFiled: November 16, 2012Publication date: October 29, 2015Inventors: Henrik HANSSON, Lars ÖSTER
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Publication number: 20150289915Abstract: A fixing means (1) for fixation of bone fragments at bone fractures comprises a sleeve (2) and at least one pin (9) which is provided in said sleeve and a front end portion (10) of which can be driven out and retracted through a side opening (8) in the sleeve such that said end portion can be brought to engage bone material in one of the bone fragments and retracted out of the bone material. For facilitating said driving and retraction, the pin (9) comprises a fixing member (9a) with said front end portion (10) and a driving and retraction member (9b) which is rotatably connected to the fixing member.Type: ApplicationFiled: October 12, 2012Publication date: October 15, 2015Inventors: Henrik Hansson, Lars Oster
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Patent number: D863556Type: GrantFiled: January 15, 2018Date of Patent: October 15, 2019Assignee: Swemac Innovation ABInventors: Henrik Hansson, Lars Öster
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Patent number: D870285Type: GrantFiled: January 26, 2018Date of Patent: December 17, 2019Assignee: Swemac Innovation ABInventors: Henrik Hansson, Lars Öster