Patents by Inventor Dimitri Protopsaltis

Dimitri Protopsaltis 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: 20250359901
    Abstract: An alignment system having an alignment instrument with a lateral portion having an upper portion and lower portion, and a medial portion releasably couplable with the lateral portion and includes a distal portion and a medial portion. The distal portion and the medial portion are couplable with first and second bones and actuatable to apply compression between the bones. The alignment instrument includes a retention member couplable with the upper portion of the lateral portion of the alignment instrument and configured to engage with a third bone of the patient. A surgical method including the steps of coupling the retention member; coupling the lateral portion with the retention member; coupling the medial portion with the lateral portion; coupling the distal aspect of the medial portion; coupling the proximal aspect of the medial portion; applying compression between the second and third bones; and applying fixation across the second and third bones.
    Type: Application
    Filed: August 5, 2025
    Publication date: November 27, 2025
    Applicant: Paragon 28, Inc.
    Inventors: Michael SCHMIDT, Garrett Jeffrey LIPKER, Lucas Charles MCMAHAN, Kenneth Allan ROGGOW, Dimitri PROTOPSALTIS
  • Patent number: 12433644
    Abstract: Various multiaxial receivers for receiving at least one tether are disclosed. A multiaxial receiver may include a body having a U-shaped cavity configured to receive a longitudinal rod therein and a lower cavity configured to couple to a pedicle screw. The body may include a first aperture extending through a side surface of the body and defining a first passageway configured to permit a tether to pass therethrough in the horizontal direction. In some embodiments, the body may include a second aperture extending through the side surface of the body and defining a second passageway configured to permit the tether to pass therethrough in the horizontal direction. A set screw may be configured to be rotated from an open position in which the tether is permitted to pass through the first passageway and optionally through the second passageway to a closed position in which the tether is immobilized.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: October 7, 2025
    Assignee: WARSAW ORTHOPEDIC, INC.
    Inventors: Jerald Redmond, Larry McBride, Dimitri Protopsaltis, Mike Sherman, Chris Italiaie, Alan Rezach, Lawrence G. Lenke
  • Publication number: 20250241761
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Application
    Filed: April 20, 2025
    Publication date: July 31, 2025
    Applicant: Paragon 28, Inc.
    Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
  • Patent number: 12370054
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Grant
    Filed: February 27, 2024
    Date of Patent: July 29, 2025
    Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
  • Publication number: 20240382236
    Abstract: An external fixation system includes an upper fixation element including a semicircular geometry, and an intermediate fixation element including a circular geometry, in which the intermediate fixation element is releasably coupled with the upper fixation element. The system also includes a lower fixation element including a substantially U-shaped geometry terminating at a first end point and a second end point, in which the lower fixation element is releasably coupled with the intermediate fixation element, and an anterior fixation element including a semicircular geometry. The anterior fixation element is also fixedly coupled with the first and second end points of the lower fixation element. The system also may include at least one strut member that is releasably coupled with the intermediate fixation element and the lower fixation element. Also disclosed is a joint having a first component, a second component and an intermediate component positioned therebetween to allow for pivotable motion.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Applicant: Paragon 28, Inc.
    Inventors: Kenneth Allan ROGGOW, Garrett Jeffrey LIPKER, Daniel CAPELIN, Dimitri PROTOPSALTIS
  • Patent number: 12121233
    Abstract: Systems and methods for tibial plateau leveling osteotomy (TPLO) are disclosed. According to some embodiments, an osteotomy method may include cutting a tibia with an arcuate cut to separate a tibial plateau of the tibia from a tibial base of the tibia, rotating the tibial plateau relative to the tibial base from a first orientation to a second orientation, and, with the tibial plateau in the second orientation relative to the tibial base, securing an implant to the tibia to secure the tibial plateau to the tibial base. Securing the implant to the tibia may include embedding a first leg of the implant into the tibial base, and embedding a second leg of the implant into the tibial plateau such that the first and second legs apply compression urging the tibial plateau toward the tibial base.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: October 22, 2024
    Inventors: Robert Glen Coleman, Michael Sherman, Dimitri Protopsaltis
  • Publication number: 20240277484
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Application
    Filed: February 27, 2024
    Publication date: August 22, 2024
    Applicant: Paragon 28, Inc.
    Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
  • Publication number: 20240164814
    Abstract: Various multiaxial receivers for receiving at least one tether are disclosed. A multiaxial receiver may include a body having a U-shaped cavity configured to receive a longitudinal rod therein and a lower cavity configured to couple to a pedicle screw. The body may include a first aperture extending through a side surface of the body and defining a first passageway configured to permit a tether to pass therethrough in the horizontal direction. In some embodiments, the body may include a second aperture extending through the side surface of the body and defining a second passageway configured to permit the tether to pass therethrough in the horizontal direction. A set screw may be configured to be rotated from an open position in which the tether is permitted to pass through the first passageway and optionally through the second passageway to a closed position in which the tether is immobilized.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: Warsaw Orthopedic, Inc.
    Inventors: Jerald Redmond, Larry McBride, Dimitri Protopsaltis, Mike Sherman, Chris Italiaie, Alan Rezach, Lawrence G. Lenke
  • Patent number: 11911281
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: February 27, 2024
    Assignee: Paragon 28, Inc.
    Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
  • Patent number: 11877775
    Abstract: A multiaxial receiver may include a body having a U-shaped cavity configured to receive a longitudinal rod therein and a lower cavity configured to couple to a pedicle screw. The multiaxial receiver may include a first passageway configured to permit a tether to pass therethrough in the vertical direction. In some embodiments, the multiaxial receiver may also include a second passageway configured to permit a tether to pass therethrough in the horizontal direction. An immobilization assembly including a set screw and a wedge may immobilize the tether. The immobilization assembly may be configured to be rotated from an open position in which the tether is permitted to pass through the first passageway to a closed position in which the tether is immobilized within the first passageway or second passageway by pining the tether against a bearing surface of the first passageway.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: January 23, 2024
    Assignee: WARSAW ORTHOPEDIC, INC.
    Inventors: Jerald Redmond, Stan Palmatier, Caleb Smith, Larry McBride, Dimitri Protopsaltis, Mike Sherman
  • Publication number: 20230181185
    Abstract: Systems and methods for tibial plateau leveling osteotomy (TPLO) are disclosed. According to some embodiments, an osteotomy method may include cutting a tibia with an arcuate cut to separate a tibial plateau of the tibia from a tibial base of the tibia, rotating the tibial plateau relative to the tibial base from a first orientation to a second orientation, and, with the tibial plateau in the second orientation relative to the tibial base, securing an implant to the tibia to secure the tibial plateau to the tibial base. Securing the implant to the tibia may include embedding a first leg of the implant into the tibial base, and embedding a second leg of the implant into the tibial plateau such that the first and second legs apply compression urging the tibial plateau toward the tibial base.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Inventors: Robert Glen COLEMAN, Michael SHERMAN, Dimitri PROTOPSALTIS
  • Patent number: 11571206
    Abstract: Systems and methods for tibial plateau leveling osteotomy (TPLO) are disclosed. According to some embodiments, an osteotomy method may include cutting a tibia with an arcuate cut to separate a tibial plateau of the tibia from a tibial base of the tibia, rotating the tibial plateau relative to the tibial base from a first orientation to a second orientation, and, with the tibial plateau in the second orientation relative to the tibial base, securing an implant to the tibia to secure the tibial plateau to the tibial base. Securing the implant to the tibia may include embedding a first leg of the implant into the tibial base, and embedding a second leg of the implant into the tibial plateau such that the first and second legs apply compression urging the tibial plateau toward the tibial base.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: February 7, 2023
    Inventors: Robert Glen Coleman, Michael Sherman, Dimitri Protopsaltis
  • Publication number: 20220409289
    Abstract: An intraoperative ultrasound imaging system and method capable of using ultrasound imaging to safely place a surgical access instrument (e.g. guide wire, dilator, cannula, etc.) through a tissue (e.g., muscle, fat, brain, liver, lung, etc.) without damaging nearby neurovascular structure is described herein. The intraoperative ultrasound system includes an ultrasound probe assembly configured for emitting and receiving ultrasound waves and a computer system including a processor and a display unit. Once the probe is in position, ultrasound imaging is performed wherein the computer receives RF data from the probe and causes a B-mode image of the visible anatomical structures (e.g. muscle, bone, etc.) to be displayed on the display unit.
    Type: Application
    Filed: December 2, 2020
    Publication date: December 29, 2022
    Inventors: Kern Singh, Kevin Foley, Goutam Ghoshal, Dimitri Protopsaltis, Mike Sherman, Adam Azzara, Zaal Christian
  • Publication number: 20220168112
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Applicant: Paragon 28, Inc.
    Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
  • Patent number: 11246712
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 15, 2022
    Assignee: Paragon 28, Inc.
    Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
  • Publication number: 20210022730
    Abstract: Systems and methods for tibial plateau leveling osteotomy (TPLO) are disclosed. According to some embodiments, an osteotomy method may include cutting a tibia with an arcuate cut to separate a tibial plateau of the tibia from a tibial base of the tibia, rotating the tibial plateau relative to the tibial base from a first orientation to a second orientation, and, with the tibial plateau in the second orientation relative to the tibial base, securing an implant to the tibia to secure the tibial plateau to the tibial base. Securing the implant to the tibia may include embedding a first leg of the implant into the tibial base, and embedding a second leg of the implant into the tibial plateau such that the first and second legs apply compression urging the tibial plateau toward the tibial base.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 28, 2021
    Inventors: Robert Glen COLEMAN, Michael SHERMAN, Dimitri PROTOPSALTIS
  • Patent number: 10772733
    Abstract: Implants, devices and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: September 15, 2020
    Assignee: Paragon 28, Inc.
    Inventors: Eric Lintula, Albert Dacosta, Dimitri Protopsaltis, Thomas R. Williams, Francis D. Barmes, Naser Rahman
  • Publication number: 20200038189
    Abstract: Implants, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Application
    Filed: September 5, 2019
    Publication date: February 6, 2020
    Applicant: Paragon 28, Inc.
    Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
  • Publication number: 20190343562
    Abstract: Implants, devices and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The implant including a first member, a second member, and a coupling member with a first end and a second end, wherein the first end engages the first member and the second end engages the second member. Methods of using the implants for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Applicant: Paragon 28, Inc.
    Inventors: Eric LINTULA, Albert DACOSTA, Dimitri PROTOPSALTIS, Thomas R. WILLIAMS, Francis D. BARMES, Naser RAHMAN
  • Patent number: 10278741
    Abstract: A translating polyaxial bone anchor for anchoring a connecting rod to a spinal vertebra comprises a fastener having a bone engaging portion and a head, the head defining a socket. An insert is captively retained in the socket and configured for swiveling polyaxial movement therein. The insert includes an elongate connecting element defining an axis, the connecting element projecting outwardly from and through the socket. A yoke having at one end a rod receiving channel for receiving a connecting rod is coupled to the fastener by a coupling member. The coupling member couples the yoke to the insert connecting element for joint polyaxial movement relative to the fastener and for translational movement of the yoke in a direction transverse to the axis of the connecting member. A fastening element is supported by the yoke for securing the connecting rod between the fastening element and the coupling member.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: May 7, 2019
    Assignee: SPINE WAVE, INC.
    Inventors: Dimitri Protopsaltis, Troy D. Drewry