Patents by Inventor Leif Ryd

Leif Ryd 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).

  • Publication number: 20240390154
    Abstract: A patellofemoral implant arrangement for repairing damage in a patellofemoral articulation of a patient is provided. The patellofemoral implant arrangement includes a femoral trochlear implant, including an articulating surface, and a patellar implant, configured to be inserted, for example with press-fit, into a recess in a patella in such a way that the perimeter of an articulating surface of the patellar implant does not extend beyond a surrounding articulating surface of the patella. The articulating surfaces of the femoral trochlear implant and the patellar implant are designed to allow that they at least partly interact with each other when the implants are implanted into the knee joint and the patella lies in the intercondylar groove of the femur. The articulating surface of the patellar implant may be designed to correspond to the curvature of a simulated healthy articulating surface of the undamaged patella at the site of diseased cartilage.
    Type: Application
    Filed: September 27, 2022
    Publication date: November 28, 2024
    Applicant: Episurf IP-Management AB
    Inventors: Johan JULIN, Ingrid BRATT, Leif RYD, Katarina FLODSTRÖM
  • Publication number: 20240390155
    Abstract: A metatarsal implant for repairing damage in a metatarsophalangeal joint of a patient is provided. The metatarsal implant is adapted to be attached to an implant receiving surface which has been created on a metatarsal head of the patient by sawing off sections of the metatarsal head, and an articulating surface of the metatarsal implant is designed to correspond to the curvature of a simulated healthy articulating surface of the undamaged metatarsal head at a site of diseased cartilage and/or bone. A bone contacting surface of the metatarsal implant is designed to correspond to the implant receiving surface, and the contour curvature of the articulating surface is generated based on a determined surface curvature of the cartilage and/or the bone in a predetermined area at the site of diseased cartilage and/or bone, to mimic the original, undamaged, articulating surface of the metatarsal head.
    Type: Application
    Filed: September 27, 2022
    Publication date: November 28, 2024
    Applicant: Episurf IP-Management AB
    Inventors: Leif RYD, Johan JULIN
  • Publication number: 20240325154
    Abstract: An implant adapted to be attached to an implant receiving surface in a joint of a patient is provided. The implant includes a bone contacting surface, and at least one implant peg extending from the bone contacting surface, wherein both the bone contacting surface and a part of a surface area of the implant peg includes an osseointegrating structure, such as e.g. a lattice structure or a random lattice structure.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: Episurf IP-Management AB
    Inventors: Leif RYD, Katarina FLODSTRÖM, Maria WIK
  • Publication number: 20240245519
    Abstract: In accordance with one or more embodiments herein, a system for turning a patient's dysplastic or deformed patellofemoral joint into a healthier patellofemoral joint is provided. The system comprises at least one processor arranged to: analyze the curvature of the patella in a patellofemoral joint; analyze the curvature of the femoral trochlea in said patellofemoral joint; and determine whether any of said analyzed curvatures indicate that the patellofemoral joint is dysplastic or deformed. If any of said analyzed curvatures indicate that the patellofemoral joint is dysplastic or deformed, the at least one processor is arranged to propose an improved curvature of the articulating surface of the patella and/or the femoral trochlea; and determine the shape and dimensions for a patellar implant that would create said improved curvature of the articulating surface of the patella, and/or a trochlear implant that would create said improved curvature of the articulating surface of the femoral trochlea.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 25, 2024
    Applicant: Episurf IP-Management AB
    Inventors: Ingrid BRATT, Johan JULIN, Leif RYD
  • Publication number: 20230108048
    Abstract: A system 100 or designing a surgical kit 700 for articulating surface repair in an anatomical joint of a patient is provided, which comprises at least one processor 120 configured to: determine damage to the anatomical joint; select, from a predefined set of implants having varying dimensions, the implant 300 that is the best fit for repairing the determined damage; select, from a predefined set of insert tools, the insert tool 720 corresponding to the selected implant 300; and design a contact surface 540 of a guide tool 500 to have a shape and contour that is designed to correspond to and to fit the contour of a predetermined area. This enables the use of standardized implants 300 that can be manufactured batch-wise, while still using an individualized guide tool 500 to ensure correct positioning of the implant 300. This helps ensuring that the implant will be positioned in the exact location of the determined damage.
    Type: Application
    Filed: September 26, 2022
    Publication date: April 6, 2023
    Applicant: Episurf IP-Management AB
    Inventors: Katarina FLODSTRÖM, Leif RYD
  • Publication number: 20230096683
    Abstract: In accordance with one or more embodiments herein, a patellofemoral implant arrangement 200 for repairing damage in a patellofemoral articulation of a patient is provided. The patellofemoral implant arrangement 200 comprises a femoral trochlear implant 250, comprising an articulating surface 255, and a patellar implant 300, configured to be inserted, preferably with press-fit, into a recess 620 in a patella 600 in such a way that the perimeter of an articulating surface 310 of the patellar implant 300 does not extend beyond a surrounding articulating surface of the patella 600. The articulating surfaces 255, 310 of the femoral trochlear implant 250 and the patellar implant 300 are designed to allow that they at least partly interact with each other when the implants 250, 300 are implanted into the knee joint and the patella 600 lies in the intercondylar groove of the femur.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 30, 2023
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Johan JULIN, Ingrid BRATT, Katarina FLODSTRÖM, Leif RYD
  • Publication number: 20230071461
    Abstract: A medical implant for cartilage and/or bone repair at an articulating surface of a joint is provided. The implant includes a contoured implant body and at least one extending post. The implant body has an articulating surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the articulating and bone contact surfaces face mutually opposite directions and the bone contact surface is provided with the extending post. A cartilage contact surface connects the articulating and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The articulating surface has a layer that is formed of titanium nitride (TiN) as the wear-resistant material. The cartilage contact surface has a coating that is formed of a material having chondrointegration properties.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Leif RYD, Jeanette SPÅNGBERG, Katarina FLODSTRÖM
  • Patent number: 11529237
    Abstract: The present invention relates to a medical implant for cartilage and/or bone repair at an articulating surface of a joint. The implant comprises a contoured implant body and at least one extending post. The implant body has an articulating surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the said articulating and bone contact surfaces face mutually opposite directions and said bone contact surface is provided with the extending post. A cartilage contact surface connects the articulating and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The articulating surface has a layer that consists of titanium nitride (TiN) as the wear-resistant material. The cartilage contact surface has a coating that substantially consists of a material having chondrointegration properties.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 20, 2022
    Assignee: Episurf IP-Management AB
    Inventors: Leif Ryd, Jeanette Spångberg, Katarina Flodström
  • Patent number: 11065011
    Abstract: The present invention relates to a surgical kit, a saw guide and other related tools used in the osteotomy for temporary removal of a piece of a first bone structure to gain temporary access for treatment of defects of a second bone structure, as well as methods for designing and manufacturing said tools.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: July 20, 2021
    Assignee: EPISURF IP-MANAGEMENT AB
    Inventors: Nina Bake, Richard Lilliestråle, Leif Ryd, Katarina Flodström, Jonas Jägerback
  • Publication number: 20210085468
    Abstract: The present invention relates to a medical implant for cartilage and/or bone repair at an articulating surface of a joint. The implant comprises a contoured implant body and at least one extending post. The implant body has an articulating surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the said articulating and bone contact surfaces face mutually opposite directions and said bone contact surface is provided with the extending post. A cartilage contact surface connects the articulating and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The articulating surface has a layer that consists of titanium nitride (TiN) as the wear-resistant material. The cartilage contact surface has a coating that substantially consists of a material having chondrointegration properties.
    Type: Application
    Filed: April 26, 2019
    Publication date: March 25, 2021
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Leif RYD, Jeanette SPÅNGBERG, Katarina FLODSTRÖM
  • Publication number: 20200163771
    Abstract: A medical implant for cartilage repair at an articulating surface of a joint. The implant includes an implant body and at least one extending post. The implant body has an articulate surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint. A cartilage contact surface connects the articulate and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The cartilage contact surface has a coating that includes bioactive material.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 28, 2020
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Nina BAKE, Leif RYD
  • Patent number: 10470885
    Abstract: A medical implant for cartilage repair at an articulating surface of a joint includes a contoured, substantially plate shaped, implant body and at least one extending post. The implant body has an articulate surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the articulate and bone contact surfaces face mutually opposite directions and the bone contact surface is provided with the extending post. A cartilage contact surface connects the articulate and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The cartilage contact surface has a coating that substantially only includes a bioactive material.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 12, 2019
    Assignee: EPISURF IP-MANAGEMENT AB
    Inventors: Nina Bake, Leif Ryd
  • Patent number: 10327785
    Abstract: A surgical kit suitable for repair of articular surfaces in the talocrural joint, includes: a surgical implant having a cap with an outer surface conforming to a talus dome surface and an inner surface having a central implant anchoring peg extending perpendicularly from said inner surface, a hollow tubular shell suitable for correct pre-drilling for implantation of the surgical joint implant in the dome of the talus, and a saw guide conforming and fixable to the lower portion of the tibia and providing saw guide surfaces in at least one plane, suitable for osteotomy of a lower portion of a tibia to expose the dome of the talus.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: June 25, 2019
    Assignee: EPISURF IP-MANAGEMENT AB
    Inventors: Nina Bake, Richard Lilliestråle, Leif Ryd, Katarina Flodström
  • Publication number: 20180243096
    Abstract: A medical implant for cartilage and/or bone repair at an articulating surface of a joint includes a contoured implant body and at least one extending post. The implant body has an articulating surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint, where the articulating and bone contact surfaces face mutually opposite directions and the bone contact surface is provided with the extending post. A cartilage contact surface connects the articulating and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The articulating surface has a layer that is a wear-resistant material. The cartilage contact surface has a coating that is a bioactive material.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Leif RYD, Jeanette SPÅNGBERG, Katarina FLODSTRÖM
  • Publication number: 20180153558
    Abstract: The present invention relates to a surgical kit, a saw guide and other related tools used in the osteotomy for temporary removal of a piece of a first bone structure to gain temporary access for treatment of defects of a second bone structure, as well as methods for designing and manufacturing said tools
    Type: Application
    Filed: January 15, 2018
    Publication date: June 7, 2018
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Nina BAKE, Richard LILLIESTRÅLE, Leif RYD, Katarina FLODSTRÖM, Jonas JÄGERBACK
  • Publication number: 20170325826
    Abstract: A surgical kit suitable for repair of articular surfaces in the talocrural joint, includes: a surgical implant having a cap with an outer surface conforming to a talus dome surface and an inner surface having a central implant anchoring peg extending perpendicularly from said inner surface, a hollow tubular shell suitable for correct pre-drilling for implantation of the surgical joint implant in the dome of the talus, and a saw guide conforming and fixable to the lower portion of the tibia and providing saw guide surfaces in at least one plane, suitable for osteotomy of a lower portion of a tibia to expose the dome of the talus.
    Type: Application
    Filed: November 13, 2014
    Publication date: November 16, 2017
    Applicant: EPISURF IP-MANAGEMENT AB
    Inventors: Nina BAKE, Richard LILLIESTRÅLE, Leif RYD, Katarina FLODSTRÖM
  • Patent number: 8657822
    Abstract: A surgical kit for cartilage repair at an articulating surface of a joint, including a medical implant and a set of tools. The medical implant includes a substantially plate shaped implant body having a predetermined cross-section that substantially corresponds to the area of the damaged cartilage. The set of tools includes a guide tool including a positioning body and a guide channel. The positioning body has a cartilage contact surface that has a shape and contour that is designed to correspond to and to fit the contour of the cartilage or subchondral bone in the joint in a predetermined area surrounding the site of diseased cartilage. The guide channel has a cross-sectional profile that is designed to correspond to the cross-section of the plate shaped implant body. Additional tools in the set of tools have a cross-sectional profile that is designed to correspond to the cross-sectional profile of the guide channel.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 25, 2014
    Assignee: Episurf IP-Management AB
    Inventors: Nina Bake, Leif Ryd, Morgan Andersson, Mats Andersson
  • Patent number: 8655468
    Abstract: A manufacturing system for a surgical kit includes surgical tools and an implant for cartilage repair in an articulating surface of a joint. The design system includes the basic blocks of: I. Receiving design parameters for a surgical kit in a computer controlled manufacturing system, the design parameters for the surgical kit representing a model for a medical implant and a guide tool for implanting the implant; II. Manufacturing a medical implant dependent on the design parameters; and III. Manufacturing a guide tool for implanting the implant dependent on design parameters.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 18, 2014
    Assignee: Episurf IP-Management AB
    Inventors: Nina Bake, Leif Ryd, Morgan Andersson, Mats Andersson
  • Patent number: 8644973
    Abstract: A design system for a surgical kit includes surgical tools and an implant. The design system includes the basic blocks of: I. Determining physical parameters for cartilage damage in a joint; II. Generating design parameters of a medical implant; and III. Generating design parameters of a set of tools for implanting the implant.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 4, 2014
    Assignee: Episurf IP-Management AB
    Inventors: Nina Bake, Leif Ryd, Morgan Andersson, Mats Andersson
  • Publication number: 20130185927
    Abstract: A manufacturing system for a surgical kit includes surgical tools and an implant for cartilage repair in an articulating surface of a joint. The design system includes the basic blocks of: I. Receiving design parameters for a surgical kit in a computer controlled manufacturing system, the design parameters for the surgical kit representing a model for a medical implant and a guide tool for implanting the implant; II. Manufacturing a medical implant dependent on the design parameters; and III. Manufacturing a guide tool for implanting the implant dependent on design parameters.
    Type: Application
    Filed: May 24, 2011
    Publication date: July 25, 2013
    Applicant: EPISURF MEDICAL AB
    Inventors: Nina Bake, Leif Ryd, Morgan Andersson, Mats Andersson