Patents Assigned to K2M, Inc.
  • Patent number: 10561504
    Abstract: A surgical instrument includes a housing, an outer shaft, an inner shaft, a trial sizer, a rod, and a head. The outer shaft is operatively coupled with the housing such that rotation of the housing causes axial displacement of the outer shaft. The outer shaft includes a keel cutter configured to form a channel in a vertebral body. The inner shaft disposed within the outer shaft. The trial sizer is configured to be received in intervertebral space. The trial sizer includes a pair of wings transitionable between a retracted position and an extended position in which the pair of wings extends transversely outward. The head is connected to the rod, wherein the head is operatively coupled with the pair of wings such that axial displacement of the rod causes transition of the pair of wings between the retracted and extended positions.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: February 18, 2020
    Assignee: K2M, Inc.
    Inventors: Nick Padovani, Josh Rubin
  • Patent number: 10548639
    Abstract: A tethering screw system includes a bone screw, a fastening member, and a securing member. The bone screw includes a threaded shank and a head portion. The head portion includes inner walls defining a slot and a recess distal of the slot. The fastening member is received in the recess of the head portion of the bone screw. The securing member has an engaging portion and a set screw rotatably coupled with the engaging portion. The engaging portion is configured to secure the fastening member in the recess of the head portion. The set screw is configured to threadably engage the inner walls of the head portion of bone screw, wherein when the set screw threadably engages the inner walls of the head portion of the bone screw, the engaging portion advances relative to the fastening member to secure the fastening member in the recess of the head portion.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: February 4, 2020
    Assignee: K2M, Inc.
    Inventors: Laurel Blakemore, Catherine Ross
  • Patent number: 10524843
    Abstract: A rotation shaft includes a body, a threaded rod, an anvil, a linkage, and a biasing member. The body includes a threaded portion disposed along an inner surface of a longitudinal throughhole. The threaded rod includes a distal end, the threaded rod configured to engage the threaded portion. The anvil is coupled to the distal end of the threaded rod. The linkage is coupled to the anvil. The biasing member is partially disposed about the linkage distal of the anvil, wherein rotation of the threaded rod translates into linear movement of the linkage relative to the body.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: January 7, 2020
    Assignee: K2M, Inc.
    Inventors: Kiril Mladenov, Brittany Harwell, Brandon Moore
  • Patent number: 10512490
    Abstract: A method for correcting a spinal deformity is provided. A spinal implant for correcting a spinal deformity includes a multipoint connector that connects to at least one vertebra of a spine at a plurality of locations and a force directing device that applies a force to the vertebra through the multipoint connector. The force directing device may include a rod which extends generally along an axis of the spine and a force directing member which is adjustably coupled to both the rod and the multipoint connector and which applies a corrective force to the at least one vertebra.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: December 24, 2019
    Assignees: Albany Medical College, K2M, Inc.
    Inventors: Allen L. Carl, Dan Sachs
  • Patent number: 10500061
    Abstract: An adjustable spinal implant includes a fixed segment that slidably supports a locking segment and pivotally supports an upper segment and a lower segment relative to one another. The locking segment translates within a channel defined by the fixed segment between locked and unlocked positions. In the locked position, the upper and lower segments are fixed relative to one another and to the fixed segment. In the unlocked position, the upper and lower segments are pivotal relative to one another and to the fixed segment. The adjustable spinal implant includes a locking mechanism including a locking screw to translate the locking segment between locked and unlocked positions.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: December 10, 2019
    Assignee: K2M, Inc.
    Inventors: Jennifer Moore, Stephen Truesdell
  • Patent number: 10499957
    Abstract: A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. A rod reducer may be secured to the polyaxial pedicle screw to secure a spinal rod within the housing.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 10, 2019
    Assignee: K2M, Inc.
    Inventors: Scott Jones, Oheneba Boachie-Adjei, Larry McClintock, Kevin Strauss, John Carbone
  • Patent number: 10499894
    Abstract: A surgical access system includes a connector including an arm having first and second end portions, a coupling element having a body portion defining a cavity therein, and a gear assembly. The gear assembly includes a first gear disposed within the cavity of the coupling element and a second gear non-rotatably disposed at the first end portion of the arm. The first and second gears are meshingly engaged with each other such that rotation of the first gear results in rotation of the second gear which, in turn, causes the arm to pivot with respect to the coupling element.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 10, 2019
    Assignee: K2M, Inc.
    Inventor: Keenan O'Brien
  • Patent number: 10485529
    Abstract: A retractor having a pair of blades is disclosed. A ring having an opening is attached to one end of the blades. The blades define a channel therebetween. The blades may be pivotally coupled to the ring. The retractor may have at least two conditions. In a first condition, the retractor is insertable through an incision in a patient's skin to an operative site. In a second condition, the retractor may be manipulated for retracting tissue surrounding the operative site. Instruments, prostheses, or tissue may be inserted or removed through the channel of the retractor.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 26, 2019
    Assignee: K2M, Inc.
    Inventors: Kevin R. Strauss, Josef Gorek, Larry McClintock, John Kostuik
  • Patent number: 10485590
    Abstract: A rod reducer includes a housing, an anvil, a locking anvil configured to engage a locking plug of a bone screw assembly, an arm assembly, a reducing screw extending through the housing and rotatably coupled with the anvil, and a locking screw extending through the housing and rotatably coupled with the locking anvil. The arm assembly includes an arm hingedly coupled to the housing, and first and second grasping members configured to engage the bone screw assembly. The first and second grasping members are hingedly coupled to the housing and extend through the anvil. Rotation of the reducing screw transitions the arm assembly between an open position, in which, distal portions of the arm and the first and second grasping members are radially expanded, and a closed position, in which, the distal portions of the arm and the first and second grasping members are radially contracted.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 26, 2019
    Assignee: K2M, Inc.
    Inventors: Kan Min, Brian Kunes
  • Patent number: 10470803
    Abstract: A flexible implant system includes a flexible implant, an implant housing, and an implant set screw. The flexible implant is configured to loop around a portion of a bony element. The implant housing includes a housing body defining a rod passage configured to receive a rod. The housing body also defines an implant passage that receives a portion of the flexible implant. The implant set screw engages the flexible implant within the implant passage to fix the flexible implant to the implant housing.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: November 12, 2019
    Assignee: K2M, Inc.
    Inventors: Behrooz Akbarnia, Burt Yaszay, Brandon Moore, Stuart Weikel, Clint Boyd
  • Patent number: 10441430
    Abstract: A spinal implant has proximal and distal regions, and includes upper and lower bodies. A proximal adjustment assembly is disposed between the upper and lower bodies in the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies in the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other, both concurrently and alternately, to change a vertical height of at least one of the proximal or distal regions of the spinal implant. A set screw is removably disposed within the proximal region of the spinal implant to lock the vertical height of the proximal and distal regions of the spinal implant.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: October 15, 2019
    Assignee: K2M, Inc.
    Inventors: Steven Ludwig, Scott Dhupar, Sabatino Bianco, Khalid Abbed, Egon Doppenberg, Jennifer Moore, John Donohoe, Scott Jones
  • Patent number: 10438511
    Abstract: A spine surgery modeling system simulates the spine with various vertebral body or disc conditions and allows a user to make adjustments and examine the three dimensional outcome of such adjustments. The spine surgery modeling system includes a spine model and a drive mechanism. The spine model has vertebral bodies and a disc space defined between adjacent vertebral bodies. The drive mechanism includes a worm gear, a worm, a rigid shaft, and a button. The worm engages the worm gear such that rotation of the worm causes rotation of the worm gear. The rigid shaft extends through a through hole defined in the worm and is configured to rotate the worm. The button is operatively engaged with the worm gear such that rotation of the worm gear causes movement of the button between collapsed and expanded states to change a height of the disc space.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 8, 2019
    Assignee: K2M, Inc.
    Inventors: Larry McClintock, Harry Paul, Robert Boyd
  • Patent number: 10426523
    Abstract: A system for correcting a spinal deformity includes an implant fixed to one side of a vertebra and a rod extending along an axis of the spine on a second side of the vertebra. An adjustment member, which may include a reel, is coupled to the rod. A force directing member, such as a cable, extends between the rod and the adjustment member. The force directing member is retractable toward and extendible from the adjustment member. A method of correcting spinal deformity includes providing an implant, a rod, an adjustment member coupled to the rod, and a force directing member extending between the rod and the adjustment member. The adjustment member can be retractable toward and extendible from the adjustment member.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: October 1, 2019
    Assignee: K2M, Inc.
    Inventors: Dan Sachs, Corbett Stone
  • Patent number: 10426534
    Abstract: A bone screw for attaching a spinal prosthetic or bone plate to bone includes a tubular body having open proximal and distal ends. The open proximal and distal ends define a passageway therethrough. A shaft is insertable into the passageway and includes a distal tip that extends beyond the open distal end. The shaft is insertable through a lumen of a head of the bone screw. A gap is defined between a distal surface of the head and a proximal end of the tubular body. The shaft is rotationally fixed with the tubular body and the head. The head is repositionable with respect to the shaft such that an acute angle is defined between the head and a longitudinal axis of the shaft.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 1, 2019
    Assignee: K2M, Inc.
    Inventors: Todd Wallenstein, Megan Carnes, John Donohoe
  • Patent number: 10426630
    Abstract: A spinal implant configured for positioning within a space between adjacent vertebral bodies includes first and second bone screws and a body. The body includes a back surface having first and second openings for receiving the first and second screws. The first and second openings are configured for orientation towards opposing vertebral bodies. The body further includes first and second side surfaces extending from opposing ends of the back surface and first and second end surfaces extending from respective first and second side surfaces, wherein the ends of the first and second end surfaces meet and define an atraumatic nose. A first angle is formed between the first side surface and the first end surface that is different than a second angle that is formed between the second side surface and the first end surface. A method using same is also disclosed.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: October 1, 2019
    Assignee: K2M, Inc.
    Inventors: Todd Wallenstein, Jennifer Moore
  • Patent number: 10405896
    Abstract: A rod reducer including a housing, a plurality of arm members, an anvil, a shaft, a sleeve, and a plurality of locking feet. The shaft and locking feet are coupled to the anvil. The housing is slidably disposed within a cavity of the sleeve and defines an opening to receive the shaft. The locking feet are additionally coupled to the sleeve and are pivotable between an engaged configuration with the sleeve in a distal position with respect to the anvil and a released configuration with the sleeve in a proximal position. In the engaged configuration an engagement surface of the locking feet couple to an outer housing of a dual layered housing of a bone screw such that proximal translation of the shaft drives the outer housing proximally with respect to an inner housing of the bone screw into a partially locked or locked configuration.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 10, 2019
    Assignee: K2M, Inc.
    Inventors: Hilali Noordeen, Michael Barrus
  • Patent number: 10405842
    Abstract: A method of distracting adjacent vertebral bodies includes inserting a first pin into a first vertebral body, inserting a second pin into a second vertebral body adjacent the first vertebral body, positioning a first retractor blade over the first pin, positioning a second retractor blade over the second pin, attaching a first arm of a frame to the first retractor blade and a second arm of the frame to the second retractor blade, displacing the second arm of the frame away from the first arm to distract the first and second vertebral bodies, inserting prongs of a lateral protector into respective channels defined in the first and second retractor blades, and retracting tissue by a transverse blade of the lateral protector.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 10, 2019
    Assignee: K2M, Inc.
    Inventor: Choll Kim
  • Patent number: 10405841
    Abstract: Devices, systems and methods for minimally open orthopedic spine surgery are disclosed. A first flexible screw-based retractor is designed to be coupled to each pedicle screw inserted into adjacent vertebral bodies. A retractor system is provided in which a first retractor blade is mounted to one of the screws and a second movable retractor blade is moved away from the first blade, in a medial direction, to create a working channel through which the disc space may be accessed for passing instruments and implants. Light may be incorporated into the device to illuminate the surgical field. One or all of the retractor blades may be made of a sterilizable plastic or metal and be disposable or reusable.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: September 10, 2019
    Assignee: K2M, Inc.
    Inventors: Josef Gorek, Linda Krisciunas, Catherine Ross, Jennifer Haggenmaker, Kevin Strauss
  • Patent number: 10390861
    Abstract: A spinal stabilization device includes a rod receiving member, a collet, a plug, and a first bone screw. The rod receiving member defines a first throughhole, a collet recess aligned with the first throughhole, and a rod receiving slot offset from the first throughhole. The collet is insertable into the collet recess and defines an aperture, a plug recess aligned with the aperture, and a wall portion defining a rod securing slot configured to fix the spinal rod therein. The collet is transitionable between a first diameter, where the rod securement region defines a first diameter, and a second diameter, where the rod securement region defines a second diameter. The plug is insertable within the plug recess, and transitions the collet between the first and second diameters. The first bone screw includes a head portion and a threaded portion, and is insertable through the rod receiving member and the collet.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: August 27, 2019
    Assignee: K2M, Inc.
    Inventors: Laurel Blakemore, Robert Gaines, Rune Hedlund, Jwalant Mehta, Kan Min, Hilali Noordeen, Brandon Moore
  • Publication number: 20190247100
    Abstract: A system for securing a flexible member to a vertebra includes a flexible member, a fixation member, and an inserter. The flexible member includes two ends. The fixation member includes a head and a shank that defines a longitudinal axis of the fixation member. The head defines a slot that passes through the head orthogonal to the longitudinal axis. The slot receives a portion of the flexible member. The inserter includes a handle and a tubular member that has proximal and distal end portion. The proximal end portion is attached to the handle and the distal end portion extends from the handle. The tubular member defines a passage between the proximal and distal end portions. The distal end portion includes a couple for receiving the head of the fixation member with the portion of the flexible member received in the slot of the flexible member.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Applicant: K2M, Inc.
    Inventors: Gregory Mundis, JR., Han Jo Kim, John Ferguson, Laurel Blakemore, Michael Barrus