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).

  • Patent number: 11234828
    Abstract: 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: Grant
    Filed: October 28, 2016
    Date of Patent: February 1, 2022
    Assignee: SWEMAC INNOVATION AB
    Inventors: Henrik Hansson, Lars Oster, Michael Ullman, Lars Adolfsson
  • Patent number: 10500056
    Abstract: 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: Grant
    Filed: December 10, 2013
    Date of Patent: December 10, 2019
    Assignee: SWEMAC INNOVATION AB
    Inventors: Lars Oster, Greg Packer
  • Publication number: 20190254833
    Abstract: 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: Application
    Filed: October 28, 2016
    Publication date: August 22, 2019
    Inventors: Henrik Hansson, Lars Oster, Michael Ullman, Lars Adolfsson
  • Patent number: 10213316
    Abstract: 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: Grant
    Filed: March 28, 2018
    Date of Patent: February 26, 2019
    Assignee: SWEMAC INNOVATION AB
    Inventor: Lars Oster
  • Patent number: 10117692
    Abstract: 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: Grant
    Filed: October 12, 2012
    Date of Patent: November 6, 2018
    Assignee: SWEMAC INNOVATION AB
    Inventors: Henrik Hansson, Lars Oster
  • Publication number: 20180214277
    Abstract: 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: Application
    Filed: March 28, 2018
    Publication date: August 2, 2018
    Inventor: Lars Oster
  • Patent number: 10010425
    Abstract: 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: Grant
    Filed: August 12, 2016
    Date of Patent: July 3, 2018
    Assignee: SWEMAC INNOVATION AB
    Inventor: Lars Oster
  • Patent number: 9993348
    Abstract: 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: Grant
    Filed: August 12, 2016
    Date of Patent: June 12, 2018
    Assignee: Swemac Innovation AB
    Inventor: Lars Oster
  • Publication number: 20160374817
    Abstract: 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: Application
    Filed: August 12, 2016
    Publication date: December 29, 2016
    Inventor: Lars Oster
  • Publication number: 20160374816
    Abstract: 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: Application
    Filed: August 12, 2016
    Publication date: December 29, 2016
    Inventor: Lars Oster
  • Publication number: 20160302935
    Abstract: 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: Application
    Filed: December 10, 2013
    Publication date: October 20, 2016
    Inventors: Lars Oster, Greg Packer
  • Patent number: 9445912
    Abstract: 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: Grant
    Filed: December 27, 2011
    Date of Patent: September 20, 2016
    Assignee: Swemac Innovation AB
    Inventor: Lars Oster
  • Publication number: 20150289915
    Abstract: 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: Application
    Filed: October 12, 2012
    Publication date: October 15, 2015
    Inventors: Henrik Hansson, Lars Oster
  • Patent number: 9101420
    Abstract: A device for fixation of bone fragments at bone fractures including at least two fixation means (5, 6), a securing plate (4) and at least one securing means (23) for the fixation means.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 11, 2015
    Assignee: SWEMAC INNOVATION AB
    Inventors: Henrik Hansson, Lars Oster
  • Publication number: 20140018930
    Abstract: 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: Application
    Filed: December 27, 2011
    Publication date: January 16, 2014
    Applicant: Swemac Innovation AB
    Inventor: Lars Oster
  • Publication number: 20110264150
    Abstract: A device for fixation of bone fragments at bone fractures including at least two fixation means (5, 6), a securing plate (4) and at least one securing means (23) for the fixation means.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 27, 2011
    Inventors: Henrik Hansson, Lars Oster
  • Publication number: 20110112652
    Abstract: The present invention relates to a joint prosthesis (1) comprising two prosthesis components (2, 3) intended to be applied respectively to the trapezium (38) and the first metacarpal bone (39) of a thumb joint, each prosthesis component having a first or second screw-like part (4, 5) intended to be screwed firmly or be fastened to one of said bones (38 or 39) by means of bone cement, the one prosthesis component (2) having an articulating socket element (6) and the other prosthesis component (3) an articulating ball element (7). The fact that at least the prosthesis component (2) with the socket element (6) has an abutment portion (20) for abutment against the bone to which the screw-like part (4) of the prosthesis component is intended to be firmly screwed or be fastened by means of bone cement, normally the trapezium (38), prevents this prosthesis component from sinking into said bone.
    Type: Application
    Filed: May 5, 2009
    Publication date: May 12, 2011
    Inventors: Henrik Hansson, Lars Oster, Etzner Mikael
  • Publication number: 20080065224
    Abstract: The present invention relates to a joint prosthesis, comprising two prosthesis members (2, 3) which are adapted to be positioned at different bones (39, 41, 42) at a joint (38), wherein each prosthesis member (2, 3) includes a first and a second screw-like member (4, 5) respectively, which are adapted to be screwed onto the respective bone (39, 41, 42). One prosthesis member (2) includes a member (6) having a socket and the other prosthesis member (3) a member (7) having a head, whereby the socket member (6) has a mounting pin (22) which is insertable into a first hole (10) in the first screw-like member (4) for positioning or locating the socket member (6) thereto and whereby the head member (7) has a mounting pin (27) which is insertable into a first hole (11) in the second screw-like member (5) for positioning or locating said head member (7) thereto.
    Type: Application
    Filed: February 13, 2006
    Publication date: March 13, 2008
    Inventors: Astor Reigstad, Lars Oster