Patents Assigned to DePuy International Limited
  • Patent number: 10582896
    Abstract: A method for assessing the orthopaedic performance of a joint of a patient can comprise implanting at least a first and second RF wirelessly detectable markers in first and second bones associated with a site and determining and storing their positions before a surgical procedure is performed. The procedure can be carried out on the site and the positions of the first and second markers can be detected and stored after the procedure has been completed. The detected positions can be used to generate a representation of the orthopaedic performance of the joint after the procedure.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: March 10, 2020
    Assignee: DePuy International Limited
    Inventors: Ian Revie, Alan Ashby, Dudi Reznick, Yaacov Nitzan
  • Patent number: 10456148
    Abstract: A bone broach is formed from a plurality of substantially planar members which are positioned adjacent to each other with each of the substantially planar members attached to at least one other substantially planar member. At least some of the substantially planar members defines at least one cutting profile at its perimeter. The plurality of substantially planar members include a first group of substantially planar members defining planes which are substantially parallel to each other, and at least one additional substantially planar member defining a plane which is angled relative to the planes defined by the first group of substantially planar members.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 29, 2019
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventor: Duncan Young
  • Patent number: 9849220
    Abstract: An implantable medical device, which comprises a device substrate, a coating on the substrate which includes a drug which is highly soluble in water, and a protective layer which overlies the coating. The protective layer comprises a polymer selected from the group consisting of polylactic acid, polyglycolic acid and a lactic acid/glycolic acid copolymer having a weight average molecular weight of not more than 40,000.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: December 26, 2017
    Assignee: DePuy International Limited
    Inventors: Yufu Li, Deborah Schachter, Raymond S. Shissias, Sandra Wechsler
  • Patent number: 9775626
    Abstract: A surgical instrument system includes a tool (2) including an elongate shaft which defines the tool axis. The shaft bears a plurality of marker rings (10, 11, 12) arranged in a predetermined pattern on the surface of the shaft so that they extend around the shaft axis. The system includes at least two receiving devices (14) which are spaced apart for receiving stereoscopic signals from the rings on the tool, and a data processor (16) for analyzing the signal from the rings and generating information relating to the position and orientation of the tool relative to the receiving device.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: October 3, 2017
    Assignee: DePuy International Limited
    Inventors: Ian Revie, Michal Slomczykowski
  • Patent number: 9693879
    Abstract: An alignment guide is described that includes a shaft having a longitudinal axis and a housing attachable to the shaft and rotatable about a first axis that is substantially perpendicular to the longitudinal axis. A guide arm the extends from the housing at a predetermined angle along a second axis. A spirit level is connected to the housing on a plane aligned with the predetermined angle.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: July 4, 2017
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Alec Birkbeck, Robert Freeman, Gary Moore, Steven Gowers
  • Patent number: 9662122
    Abstract: A bone broach is formed from a plurality of substantially planar members which are positioned adjacent to each other with each of the substantially planar members attached to at least one other substantially planar member. At least some of the substantially planar members defines at least one cutting profile at its perimeter. The plurality of substantially planar members include a first group of substantially planar members defining planes which are substantially parallel to each other, and at least one additional substantially planar member defining a plane which is angled relative to the planes defined by the first group of substantially planar members.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: May 30, 2017
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventor: Duncan Young
  • Patent number: 9603722
    Abstract: A surgical instrument alignment guide comprising a mount (2) arranged to be coupled to a bone of a patient, an alignment rod (4), a guide rod (24) and an indicator (26). The alignment rod (4) has a first end pivotally coupled to the mount (2) such that the inclination of the alignment rod (4) relative to the mount (2) is adjustable. The guide rod (24) is couplable to a second end of the alignment rod (4) at an adjustable angle and orientation such that the guide rod (24) can extend transverse to the alignment rod (4). The indicator (26) is coupled to the guide rod (24) to indicate when the guide rod (24) lies at a desired angle relative to a horizontal axis. Also disclosed is a method of aligning a surgical instrument using the surgical instrument alignment guide.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 28, 2017
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: David Beverland, Robert Freeman, Steven Gowers
  • Patent number: 9380980
    Abstract: A method for assessing the orthopedic performance of a joint of a patient can comprise implanting at least a first and second RF wirelessly detectable markers in first and second bones associated with a site and determining and storing their positions before a surgical procedure is performed. The procedure can be carried out on the site and the positions of the first and second markers can be detected and stored after the procedure has been completed. The detected positions can be used to generate a representation of the orthopedic performance of the joint after the procedure.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: July 5, 2016
    Assignee: DePuy International Limited
    Inventors: Ian Revie, Alan Ashby, Dudi Reznick, Yaacov Nitzan
  • Publication number: 20160158027
    Abstract: An alignment guide is provided having a shaft having a longitudinal axis. The guide includes a housing configured to be attached to the shaft and rotatable about a first axis substantially perpendicular to the longitudinal axis. The housing includes a base and a plate. The base is attached to the shaft, and the plate is rotatable about the first axis relative to the base. The guide also includes a guide arm having a first portion and a second portion, the first portion being attached to the housing and extending from the housing along a second axis, the second portion extending from the first portion at a first predetermined angle.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Applicants: DEPUY INTERNATIONAL LIMITED, DEPUY INTERNATIONAL LIMITED
    Inventors: Alec Birkbeck, Robert Freeman, Gary Moore, Steven Gowers
  • Patent number: 9333022
    Abstract: A tool for extracting a pin from a substrate comprises a first lever arm with a body part having a cavity in which the free end of a pin can be received, and a second lever arm which can pivot relative to the first lever arm. A jaw component is provided within the body part which can be actuated from an unlocked position in which a pin within the jaw component can slide freely past the jaw component, and a locked position in which the pin is gripped by engagement of the jaw component with the side wall of the pin, and a support is provided which can slide relative to the body part, in a direction towards the substrate from which the pin is to be extracted. Initial movement of the first lever arm relative to the second lever arm causes the jaw component to be actuated from its unlocked position to its locked position so that an inserted pin is gripped by the jaw component.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: May 10, 2016
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: William Graves, Iain Alexander McMillan, Ray Randle
  • Patent number: 9295566
    Abstract: An alignment guide is provided having a shaft with a longitudinal axis and a guide arm having a first portion, a second portion and a third portion. The first portion is attached to the shaft and configured to be rotatable about a first axis substantially perpendicular to the longitudinal axis. The second portion extends from the first portion at a first predetermined angle along a second axis. The third portion extends from the second portion at a second predetermined angle.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: March 29, 2016
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Alec Birkbeck, Robert Freeman, Gary Moore, Steven Gowers
  • Patent number: 9114027
    Abstract: A surgical instrument alignment guide comprising a mount (2) arranged to be coupled to a bone of a patient, an alignment rod (4), a guide rod (24) and an indicator (26). The alignment rod (4) has a first end pivotally coupled to the mount (2) such that the inclination of the alignment rod (4) relative to the mount (2) is adjustable. The guide rod (24) is couplable to a second end of the alignment rod (4) at an adjustable angle and orientation such that the guide rod (24) can extend transverse to the alignment rod (4). The indicator (26) is coupled to the guide rod (24) to indicate when the guide rod (24) lies at a desired angle relative to a horizontal axis. Also disclosed is a method of aligning a surgical instrument using the surgical instrument alignment guide.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: August 25, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: David Beverland, Robert Freeman, Steven Gowers
  • Patent number: 9095448
    Abstract: A method of aligning an alignment guide relative to a reamed acetabulum of a patient is provided. The method includes the step of manipulating an alignment guide comprising a shaft having a longitudinal axis and a guide arm having a first portion, a second portion and a third portion, the first portion attached to the shaft and configured to be rotatable about a first axis substantially perpendicular to the longitudinal axis, the second portion extending from the first portion at a first predetermined angle along a second axis, and the third portion extending from the second portion at a second predetermined angle. The guide arm is rotated about the first axis relative to the shaft. A cup or trial is attached to the distal end of the shaft and positioned to contact the reamed acetabulum. The third portion of the guide arm is then oriented with respect to the long axis of the patient and the surface of the table on which the patient is positioned.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: August 4, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Alec Birkbeck, Robert Freeman, Gary Moore, Steven Gowers
  • Patent number: 9084687
    Abstract: An orientation guide comprising a housing arranged to couple to a surgical instrument. In one embodiment the orientation guide further comprises first and second indicators (22, 26). The first indicator (22) is pivotally coupled to the housing (20) such that the first indicator (22) can rotate relative to the housing (20) about a first axis (24) to maintain its angular position about the first axis (24) relative to a vertical axis irrespective of movement of the housing (20). The second indicator (26) surrounds the first indicator (22) and is pivotally coupled to the housing (20) such that the second indicator (26) can rotate relative to the housing (20) about a second axis (32) orthogonal to the first axis (24) to maintain its angular position about the second axis (32) relative to the vertical axis irrespective of movement of the housing (20).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 21, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Ivan Green, Robert Freeman, Steven Gowers
  • Patent number: 9078669
    Abstract: A cutting guide instrument for use in a cutting step in an orthopedic surgical procedure comprises a reference component comprising a first element which can be attached or otherwise aligned relative to the bone in a predetermined arrangement and a locator arm. The invention further comprises a cutting block comprising a reference surface which can be engaged by a cutting tool to define the location and orientation of the tool during the cutting step. The cutting block further comprises at least one fixation bore for receiving a fixation pin to fix the cutting block to the bone. The locator arm can be fitted against the reference surface so that the reference component and cutting block are arranged in a predetermined manner.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: July 14, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventor: Liam Dower
  • Patent number: 9078668
    Abstract: A technique for locating an axis of a bone, which extends through the center of rotation of the bone around a joint between that bone and another bone, involves a. moving the bone in a plane about the said joint, between a first point and a second point, b. locating a third point which is equidistant from the first and second points, and c. locating the axis which passes through the third point, perpendicular to a line which connects the first and second points. The invention provides an instrument for performing this technique.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: July 14, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Mick Rock, Callum Colquhoun
  • Patent number: 9066731
    Abstract: An instrument for removing tissue from a bone to create a cavity consists of an approximately spherical body having cutting formations in its external surface for cutting a bone. The body has a connector by which it can be connected to a drive by which it can be rotated about an axis, and a recess at the pole, opposite the connector. When the instrument is applied to the surface of a bone and is rotated about its axis, bone is cut as a result of the action of the formations against the bone, and a circular region of bone adjacent to the polar recess in the body remains generally intact.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 30, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventor: Gary Moore
  • Patent number: 9042621
    Abstract: A system and computer implemented method for use in determining the deviation of an intra-operative position of an orthopaedic implant from a planned position is described. The position of the orthopedic implant in the bone is defined by a plurality of implant position parameters. The distance of a plurality of anatomical features in a three dimensional model of the surface of the bone relative to a model of the implant at a first position is calculated. The first position corresponds to a first set of values for the implant position parameters. The distance of the plurality of anatomical features to a model of the implant at a second position in the bone is calculated. The second position corresponds to a second set of values for the implant position parameters, and the second position is different to the first position.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: May 26, 2015
    Assignee: DEPUY INTERNATIONAL LIMITED
    Inventors: Alan Ashby, Harald Bornfleth, Thorsten Burger
  • Patent number: 9005207
    Abstract: Patient specific surgical instruments, and in particular cutting guides, and methods of use and manufacture are described. The surgical instrument can be used in an orthopaedic arthroplasty procedure to be carried out on a joint of a patient and can allowing soft tissue balancing for the joint. The instrument comprises a body having an attachment area configured using data specific to a bone of the joint of the patient so as to attach to the bone in a unique position. The instrument includes at least a first cutting guide and an adjustment mechanism operable to change the position of the cutting guide relative to the bone.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: April 14, 2015
    Assignee: Depuy International Limited
    Inventors: Gordon Dodds, Harald Bornfleth, Kevin Booth, Liam Dower, Dan Auger
  • Patent number: 8979939
    Abstract: A prosthesis arranged to be coupled to a bone. The prosthesis comprises a substrate (2) having a surface (6). The surface (6) of the substrate (2) has a first area and a second area, the first area being treated such that osseointegration is promoted more than in the second area. The interface (12) between the first and second areas forms an alignment mark to assist alignment of the prosthesis relative to a bone. The prosthesis is arranged to be at least partially inserted into a bone cavity such that the position of the alignment mark relative to the bone cavity is indicative of the angle of insertion of the prosthesis or the alignment mark provides a position reference for determining the implanted position of the prosthesis in the cavity. A method of manufacturing the prosthesis and a method of implanting the prosthesis are also provided.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: March 17, 2015
    Assignee: DePuy International Limited
    Inventors: Alec Birkbeck, Ryan Collins