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).
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Publication number: 20250359901Abstract: 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: ApplicationFiled: August 5, 2025Publication date: November 27, 2025Applicant: Paragon 28, Inc.Inventors: Michael SCHMIDT, Garrett Jeffrey LIPKER, Lucas Charles MCMAHAN, Kenneth Allan ROGGOW, Dimitri PROTOPSALTIS
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Patent number: 12433644Abstract: 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: GrantFiled: November 17, 2022Date of Patent: October 7, 2025Assignee: WARSAW ORTHOPEDIC, INC.Inventors: Jerald Redmond, Larry McBride, Dimitri Protopsaltis, Mike Sherman, Chris Italiaie, Alan Rezach, Lawrence G. Lenke
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Publication number: 20250241761Abstract: 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: ApplicationFiled: April 20, 2025Publication date: July 31, 2025Applicant: Paragon 28, Inc.Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
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Patent number: 12370054Abstract: 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: GrantFiled: February 27, 2024Date of Patent: July 29, 2025Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
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Publication number: 20240382236Abstract: 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: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Applicant: Paragon 28, Inc.Inventors: Kenneth Allan ROGGOW, Garrett Jeffrey LIPKER, Daniel CAPELIN, Dimitri PROTOPSALTIS
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Patent number: 12121233Abstract: 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: GrantFiled: February 3, 2023Date of Patent: October 22, 2024Inventors: Robert Glen Coleman, Michael Sherman, Dimitri Protopsaltis
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Publication number: 20240277484Abstract: 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: ApplicationFiled: February 27, 2024Publication date: August 22, 2024Applicant: Paragon 28, Inc.Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
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Publication number: 20240164814Abstract: 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: ApplicationFiled: November 17, 2022Publication date: May 23, 2024Applicant: Warsaw Orthopedic, Inc.Inventors: Jerald Redmond, Larry McBride, Dimitri Protopsaltis, Mike Sherman, Chris Italiaie, Alan Rezach, Lawrence G. Lenke
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Patent number: 11911281Abstract: 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: GrantFiled: February 15, 2022Date of Patent: February 27, 2024Assignee: Paragon 28, Inc.Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
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Patent number: 11877775Abstract: 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: GrantFiled: November 21, 2022Date of Patent: January 23, 2024Assignee: WARSAW ORTHOPEDIC, INC.Inventors: Jerald Redmond, Stan Palmatier, Caleb Smith, Larry McBride, Dimitri Protopsaltis, Mike Sherman
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Publication number: 20230181185Abstract: 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: ApplicationFiled: February 3, 2023Publication date: June 15, 2023Inventors: Robert Glen COLEMAN, Michael SHERMAN, Dimitri PROTOPSALTIS
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Patent number: 11571206Abstract: 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: GrantFiled: July 23, 2020Date of Patent: February 7, 2023Inventors: Robert Glen Coleman, Michael Sherman, Dimitri Protopsaltis
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Publication number: 20220409289Abstract: 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: ApplicationFiled: December 2, 2020Publication date: December 29, 2022Inventors: Kern Singh, Kevin Foley, Goutam Ghoshal, Dimitri Protopsaltis, Mike Sherman, Adam Azzara, Zaal Christian
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Publication number: 20220168112Abstract: 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: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Applicant: Paragon 28, Inc.Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
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Patent number: 11246712Abstract: 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: GrantFiled: September 5, 2019Date of Patent: February 15, 2022Assignee: Paragon 28, Inc.Inventors: Thomas R. Williams, Eric Lintula, Naser Rahman, Kyle James Hartson, Albert Dacosta, Dimitri Protopsaltis, Francis D. Barmes
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Publication number: 20210022730Abstract: 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: ApplicationFiled: July 23, 2020Publication date: January 28, 2021Inventors: Robert Glen COLEMAN, Michael SHERMAN, Dimitri PROTOPSALTIS
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Patent number: 10772733Abstract: 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: GrantFiled: July 23, 2019Date of Patent: September 15, 2020Assignee: Paragon 28, Inc.Inventors: Eric Lintula, Albert Dacosta, Dimitri Protopsaltis, Thomas R. Williams, Francis D. Barmes, Naser Rahman
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Publication number: 20200038189Abstract: 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: ApplicationFiled: September 5, 2019Publication date: February 6, 2020Applicant: Paragon 28, Inc.Inventors: Thomas R. WILLIAMS, Eric LINTULA, Naser RAHMAN, Kyle James HARTSON, Albert DACOSTA, Dimitri PROTOPSALTIS, Francis D. BARMES
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Publication number: 20190343562Abstract: 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: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Applicant: Paragon 28, Inc.Inventors: Eric LINTULA, Albert DACOSTA, Dimitri PROTOPSALTIS, Thomas R. WILLIAMS, Francis D. BARMES, Naser RAHMAN
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Patent number: 10278741Abstract: 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: GrantFiled: May 25, 2018Date of Patent: May 7, 2019Assignee: SPINE WAVE, INC.Inventors: Dimitri Protopsaltis, Troy D. Drewry