Patents by Inventor Andrew J. Nelson

Andrew J. Nelson 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: 20210346166
    Abstract: A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The base may include a proximal collar having a proximal surface and a bone-engaging surface opposite the proximal surface. The collar may have a superior portion and an inferior portion, the superior portion defining an arc shape and the inferior portion defining a substantially triangular shape.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 11, 2021
    Inventors: Daniel E. Sapio, Ashish Mehta, Andrew J. Nelson, Bernhard Hofstaetter, Sunny Shorabh
  • Publication number: 20210338442
    Abstract: A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The anchor may include various features to enhance the fixation of the base, including hooks, threads, and/or expandable members that may be transitioned from a contracted insertion condition to an expanded implanted condition once the base is positioned in the bone. The anchor and/or collar may also include additional features to enhance fixation, such as geometries and surface features to enhance fixation to bone. The anchor may include a plurality of chisel slots to facilitate removal of bone during a revision surgery.
    Type: Application
    Filed: July 12, 2021
    Publication date: November 4, 2021
    Inventors: Philip T. Kemp, Andrew J. Nelson, Jan Heinsohn, Rajan Yadav, Koustubh Rao, Gennaro A. Barile, Ashish Mehta, Venkateswaran Perumal, David Viscardi
  • Publication number: 20210251768
    Abstract: Disclosed herein is a humeral head trial, a system for humeral trialing, and a method for removing a humeral head trial from a humeral stem. The humeral head trial may include a first portion, a second portion, and a post extending from the second portion. The first portion may define a concave articular surface with a movable surface substantially flush with the concave articular surface. The post may define a first length in a first configuration and a second length in a second configuration. The first length may be greater than the second length. The post may change from the first configuration to the second configuration by moving the movable surface with respect to the concave articular surface.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 19, 2021
    Inventor: Andrew J. Nelson
  • Publication number: 20210244546
    Abstract: A method of repairing a fractured humerus may include implanting a prosthetic humeral stem into a humeral canal of the fractured humerus. First and second tuberosities of the fractured humerus may be robotically machined to include first and second implant-facing surfaces that are substantially negatives of first and second surface portions of the proximal end of the prosthetic humeral stem. The first and second tuberosities may be machined so that the first and second tuberosities have first and second interlocking surfaces shaped to interlock with each other. During implantation, the first and second implant-facing surfaces are in contact with the first and second surface portions of the proximal end of the prosthetic humeral stem, and the first interlocking surface interlocks with the second interlocking surface.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 12, 2021
    Inventors: Rajan Yadav, Koustubh Rao, Andrew J. Nelson, David Viscardi, Jetinder Singh
  • Patent number: 11076962
    Abstract: A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The anchor may include various features to enhance the fixation of the base, including hooks, threads, and/or expandable members that may be transitioned from a contracted insertion condition to an expanded implanted condition once the base is positioned in the bone. The anchor and/or collar may also include additional features to enhance fixation, such as geometries and surface features to enhance fixation to bone. The anchor may include a plurality of chisel slots to facilitate removal of bone during a revision surgery.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 3, 2021
    Assignee: Howmedica Osteonics Corp.
    Inventors: Philip T. Kemp, Andrew J. Nelson, Jan Heinsohn, Rajan Yadav, Koustubh Rao, Gennaro A. Barile, Ashish Mehta, Venkateswaran Perumal, David Viscardi
  • Publication number: 20210219995
    Abstract: A resection guide includes an anchor having bone anchoring features, a cutting block having a cutting guide defined therein, and a linkage flexibly connecting the cutting block to the anchor. The flexibility of the linkage provides the cutting block with six degrees of freedom of motion relative to the anchor.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 22, 2021
    Inventors: Andrew J. Nelson, Daniel E. Sapio, Sunny Shorabh, Shashank Verma, Morgan Schliem
  • Publication number: 20210068968
    Abstract: According to one aspect of the disclosure, a glenoid implant for replacing a native glenoid includes an articulating surface configured to articulate with respect to a humeral head. A bone-facing surface may be opposite the articulating surface, the bone-facing surface having a first area configured to contact a paleoglenoid of the native glenoid. An augment portion may be coupled to the bone-facing surface, the augment portion being configured to contact a neoglenoid of the native glenoid. The augment portion may be transitionable between a first configuration in which the augment portion has a first convexity and a second configuration in which the augment portion has a second convexity different than the first convexity.
    Type: Application
    Filed: August 11, 2020
    Publication date: March 11, 2021
    Inventors: Lance N. Terrill, Andrew J. Nelson, Garrett Campbell
  • Publication number: 20210045895
    Abstract: An impactor system is for impacting a base of a shoulder implant into a humerus. The system may include a housing having distal stabilizer configured to contact a proximal resected surface of the humerus. The distal stabilizer may define an open space. An impaction member may be slidably received within the housing. The impaction member may have a proximal surface and a distal connection mechanism adapted to connect to the base of the shoulder implant. The impaction member may be movable from a first proximal position in which the base of the shoulder implant, when connected to the impaction member, is positioned within the open space defined by the distal stabilizer, to a second distal position in which the base of the shoulder implant, when connected to the impaction member, is positioned at least partially distal to the open space defined by the distal stabilizer.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 18, 2021
    Inventors: Daniel E. Sapio, Andrew J. Nelson, Gennaro A. Barile, Sunny Shorabh
  • Publication number: 20210007856
    Abstract: A base member of a prosthetic stemless shoulder implant may include a proximal collar, a central anchor, and at least one peripheral anchor. The proximal collar may have a proximal surface and a distal bone-engaging surface opposite the proximal surface. The central anchor may extend distally from the bone-engaging surface and define an opening extending from the bone-engaging surface into the central anchor for receiving a humeral head component of the prosthetic stemless shoulder implant. The at least one peripheral anchor may be positioned radially outwardly of the central anchor and extend distally from the bone-engaging surface. The peripheral anchor may be frangibly connected to the proximal collar.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Inventors: Andrew J. Nelson, Daniel E. Sapio, Manoj Kumar Singh
  • Publication number: 20200316320
    Abstract: Insufflators and related insufflation methods. In some embodiments, an insufflator assembly may comprise a first port fluidly coupled with and configured to provide access to ambient air, a gas pump fluidly coupled with the first port, and a second port configured to deliver pressurized ambient air generated from the gas pump for delivery to a patient. The assembly may further comprise a battery configured to provide a portable energy source for delivery of electrical energy to the gas pump.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 8, 2020
    Inventors: Andrew J. Nelson, Adam Cortland Kessel
  • Patent number: 10779951
    Abstract: A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The anchor may include various features to enhance the fixation of the base, including hooks, threads, and/or expandable members that may be transitioned from a contracted insertion condition to an expanded implanted condition once the base is positioned in the bone. The anchor and/or collar may also include additional features to enhance fixation, such as geometries and surface features to enhance fixation to bone. The anchor may include a plurality of chisel slots to facilitate removal of bone during a revision surgery.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 22, 2020
    Assignee: Howmedica Osteonics Corp.
    Inventors: Philip T. Kemp, Andrew J. Nelson, Jan Heinsohn, Rajan Yadav, Koustubh Rao, Gennaro A. Barile, Joaquin Sanchez-Sotelo, Ashish Mehta, Venkateswaran Perumal, David Viscardi
  • Publication number: 20200292104
    Abstract: Systems and methods are disclosed for protecting a tether line within a pressurized pipe. As the tether line is extended and retracted, portions of the tether line are prevented from directly engaging jagged profiles formed in the pressurized pipe.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: Hydra-Stop LLC
    Inventors: Christopher C. Vazzana, Andrew J. Nelson, Cullen Geppert, Ariel Choi, Atticus D. Rush
  • Publication number: 20200290098
    Abstract: Systems and methods are disclosed for cleaning an interior surface of a pressurized pipe. A conduit having a suction end disposed inside the pipe and a discharge end outside the pipe uses a pressure differential to create a suction flow through the pipe. A scrubber may be attached near the suction end to increase the amount of debris dislodged from the interior surface of the pipe.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: Hydra-Stop LLC
    Inventors: Christopher C. Vazzana, Andrew J. Nelson, Cullen Geppert
  • Patent number: 10718458
    Abstract: A gate valve cartridge, valve housing and installation assembly as well as a completion plug for a line stop fitting and installation assembly. The gate valve cartridge comprises a gate, a paddle, a threaded valve stem and a completion plug. Both completion plugs include an outer circumferential slot for accommodating a circumferential seal and both completion plugs also accommodate a normally-closed check valve. The check valves have an open distal end for receiving a check valve actuator and an open proximal end in communication with fluid disposed proximally of the circumferential seal.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: July 21, 2020
    Assignee: Hydra-Stop LLC
    Inventors: Andrew J. Nelson, Christopher C. Vazzana, Cole Strickland, Carl Mastny
  • Patent number: 10709460
    Abstract: Disclosed herein are systems and methods for identifying the proper implant for use in an arthroplasty procedure and preparing a bone surface for the placement of such implant. In one embodiment, a centering guide system includes a cannulated post and a translucent surface trial where the cannulated post includes a slit defining legs that flex to engage the post when inserted in a hole of the surface trial. The system is used to confirm a suitable implant size and place a pilot wire in preparation for implant placement. The cannulated post and the translucent surface trial provide comprehensive visibility of the glenoid surface. When inserted into the surface trial, an extension of the cannulated post beyond an articulating surface of the surface trial is minimal or nonexistent. In this way, the congruence of a reamed glenoid surface can be evaluated prior to implantation of the implant.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: July 14, 2020
    Assignee: Howmedica Osteonics Corp.
    Inventors: Andrew J. Nelson, Kaitlin Elizabeth Anne McClymont
  • Publication number: 20200121329
    Abstract: Described herein are cannulated reamer designs and methods. In one embodiment, a reamer comprises a cannulated central body portion, a plurality of cutting legs and outer frame. The cannulated central body portion has an inner wall surface and an opposing outer wall surface defining a thickness and a bone contacting surface and an opposing distal end surface defining a length, the inner wall surface defining a bore about a central longitudinal axis of the cannulated central body portion. The plurality of cutting legs extends outwardly from the cannulated central body portion. The other defines a periphery of the reamer, the outer frame coupled to a lateral end of each of the plurality of cutting legs. The cannulated central body portion has a recess extending entirely through the thickness and only partially though the length.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Inventors: Nicholas Olson, Andrew J. Nelson
  • Patent number: 10619747
    Abstract: A gate valve for a pressurized pipe includes a paddle member with a lower proximal portion and a pair of spaced-apart and leg portions that form an outer edge and an inner edge. A cartridge includes a valve stem channel extending through a distal portion and through a conduit and terminating at a proximal opening in a proximal portion of the cartridge. The proximal portion of the cartridge includes a slot for accommodating the inner edge of the paddle member. In a pre-compression configuration, the inner edge of the paddle member is spaced-apart from the proximal opening of the conduit and in a post-compression configuration, the inner edge of the paddle member engages and seals the proximal opening resulting in a built-in check-valve that is open when the paddle member is in the pre-compression configuration and closed when the paddle member is in the post-compression configuration.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 14, 2020
    Assignee: Hydra-Stop LLC
    Inventors: Christopher C. Vazzana, Carl Mastny, Andrew J. Nelson
  • Publication number: 20200096408
    Abstract: Systems and methods are disclosed for managing a cable attached to an inspection probe disposed in a pipe containing a fluid at an elevated pressure above an ambient pressure. The systems and methods include hot-tapping the pipe and attaching a launch housing to the pipe. The launch housing defines an interior chamber sized to receive the inspection probe and that fluidly communicates with the pipe, thereby placing the interior chamber at the elevated pressure. An uphole end of the cable is attached to a reel, and a cable drive mechanically engages the cable. The cable drive is operable in a forward direction, to advance the cable into the pipe, and a reverse direction, to retract the cable from the pipe.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Applicant: Hydra-Stop LLC
    Inventors: Christopher C. Vazzana, Andrew J. Nelson
  • Publication number: 20200096422
    Abstract: Systems and methods for accessing and monitoring a fluid within a pressurized pipe include a nozzle coupled to a section of the pressurized pipe and defining an open proximal end fluidly communicating with the pressurized pipe through an access hole formed in the pressurized pipe, an open distal end, and an interior passage extending from the open proximal end to the open distal end. A cover plate is coupled to the open distal end of the nozzle. A valve element is disposed in the interior passage and movable between an open position, in which the valve element is entirely disposed within the nozzle, and a closed position, in which a proximal section of the valve element is disposed in the pressurized pipe. A sensor port extends through a proximal end of the nozzle and positioned to fluidly communicate with the interior passage when the valve element is in the open position.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Applicant: Hydra-Stop LLC
    Inventors: Christopher C. Vazzana, Andrew J. Nelson
  • Patent number: 10548617
    Abstract: Described herein are cannulated reamer designs and methods. In one embodiment, a reamer comprises a cannulated central body portion, a plurality of cutting legs and outer frame. The cannulated central body portion has an inner wall surface and an opposing outer wall surface defining a thickness and a bone contacting surface and an opposing distal end surface defining a length, the inner wall surface defining a bore about a central longitudinal axis of the cannulated central body portion. The plurality of cutting legs extends outwardly from the cannulated central body portion. The other defines a periphery of the reamer, the outer frame coupled to a lateral end of each of the plurality of cutting legs. The cannulated central body portion has a recess extending entirely through the thickness and only partially though the length from a location along the length above the bone contacting surface and through the opposing distal end surface.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 4, 2020
    Assignee: Howmedica Osteonics Corp.
    Inventors: Nicholas Olson, Andrew J. Nelson