Patents by Inventor Nicholas J. Katrana
Nicholas J. Katrana 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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Patent number: 11213400Abstract: An elbow prosthesis according to the present teachings can include a stem structure and an articulating component. The stem structure can be operable to be positioned in a bone of a joint. The stem structure can include a stem portion that is operable to be positioned in the bone and a C-shaped body portion having a first retaining mechanism formed thereon. The articulating component can have a second retaining mechanism formed thereon. One of the first and second retaining mechanisms can comprise an extension portion and a first anti-rotation portion. The other retaining mechanism can comprise a receiving portion and a second anti-rotation portion. The articulating component can be advanced from an insertion position to an assembled position, such that the first and second mechanisms cooperatively interlock to inhibit translation and rotation of the articulating component relative to the C-shaped body portion of the stem structure.Type: GrantFiled: March 20, 2020Date of Patent: January 4, 2022Assignee: ENCORE MEDICAL, L.P.Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Patent number: 10945851Abstract: An elbow prosthesis includes a capitellar implant having an articulating head and a stem. The articulating head includes a first passage along a first axis, a second passage along a second axis, and a receiving groove. The stem includes a proximal end and a connecting end. The connecting end includes a curved body having a bore. The curved body selectively mates with the receiving groove such that the bore axially aligns with the first axis of the first passage in an assembled position for collectively receiving a securing member. The second axis is located between the first axis and the proximal end of the stem.Type: GrantFiled: November 8, 2018Date of Patent: March 16, 2021Assignee: Encore Medical, LPInventors: Nicholas J. Katrana, Thomas J. Graham, Brian K. Berelsman, Clinton E. Kehres
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Patent number: 10925742Abstract: An elbow prosthesis constructed in accordance to one example of the present teachings can include a capitellar implant having an articulating head and a stem. The articulating head can have a first articulating surface positioned generally between a lateral side and a medial side. A passage can extend through the articulating head from the lateral side to the medial side. The articulating head can define a counterbore formed at the lateral side and that is concentric with the passage. According to other features, the elbow prosthesis can include a coronoid implant that has a body and a stem. The body can have a superior articulating surface that includes a central ridge and an anterior buttress. The central ridge can be configured to accommodate articulation with a trochlea in an implanted position.Type: GrantFiled: July 8, 2019Date of Patent: February 23, 2021Assignee: Encore Medical, L.P.Inventors: Thomas J. Graham, Nicholas J. Katrana
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Publication number: 20200352726Abstract: An elbow prosthesis according to the present teachings can include a stem structure and an articulating component. The stem structure can be operable to be positioned in a bone of a joint. The stem structure can include a stem portion that is operable to be positioned in the bone and a C-shaped body portion having a first retaining mechanism formed thereon. The articulating component can have a second retaining mechanism formed thereon. One of the first and second retaining mechanisms can comprise an extension portion and a first anti-rotation portion. The other retaining mechanism can comprise a receiving portion and a second anti-rotation portion. The articulating component can be advanced from an insertion position to an assembled position, such that the first and second mechanisms cooperatively interlock to inhibit translation and rotation of the articulating component relative to the C-shaped body portion of the stem structure.Type: ApplicationFiled: March 20, 2020Publication date: November 12, 2020Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Patent number: 10828067Abstract: A system for compressing a fracture can include a first bone plate having a first proximal end and a first distal end, and a second bone plate having a second proximal end and a second distal end. The second bone plate can be spaced apart from the first bone plate. The system can include an expansion member coupled to the second proximal end of the second bone plate. The movement of the expansion member relative to the second bone plate can cause the first distal end of the first bone plate and the second distal end of the second bone plate to move toward each other to compress the fracture.Type: GrantFiled: April 25, 2016Date of Patent: November 10, 2020Assignee: Biomet Manufacturing, LLCInventors: Nicholas J. Katrana, Benjamin P. Heilman, Thomas M. Vanasse
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Patent number: 10792160Abstract: A joint prosthesis is provided and may include first and second stem structures and first and second bearing members. The first stem structure may include a generally U-shaped portion having first and second legs. The second stem structure may include first and second bearing surfaces. The first bearing member may be removably coupled to the first leg and may include a first laterally facing bearing surface rotatably contacting the first bearing surface. The second bearing member may be removably coupled to the second leg and may include a second laterally facing bearing surface rotatably contacting the second bearing surface. The first laterally facing bearing surface may be disposed between the first leg and a first lateral side of the second stem. The second laterally facing bearing surface may be disposed between the second leg and a second lateral side of the second stem. The second lateral side may oppose the first lateral side.Type: GrantFiled: December 28, 2018Date of Patent: October 6, 2020Assignee: Encore Medical, L.P.Inventors: Nicholas J. Katrana, Brian K. Berelsman, Nathan A. Winslow
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Patent number: 10596006Abstract: An elbow prosthesis according to the present teachings can include a stem structure and an articulating component. The stem structure can be operable to be positioned in a bone of a joint. The stem structure can include a stem portion that is operable to be positioned in the bone and a C-shaped body portion having a first retaining mechanism formed thereon. The articulating component can have a second retaining mechanism formed thereon. One of the first and second retaining mechanisms can comprise an extension portion and a first anti-rotation portion. The other retaining mechanism can comprise a receiving portion and a second anti-rotation portion. The articulating component can be advanced from an insertion position to an assembled position, such that the first and second mechanisms cooperatively interlock to inhibit translation and rotation of the articulating component relative to the C-shaped body portion of the stem structure.Type: GrantFiled: June 5, 2017Date of Patent: March 24, 2020Assignee: Encore Medical, L.P.Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Publication number: 20200030104Abstract: An elbow prosthesis constructed in accordance to one example of the present teachings can include a capitellar implant having an articulating head and a stem. The articulating head can have a first articulating surface positioned generally between a lateral side and a medial side. A passage can extend through the articulating head from the lateral side to the medial side. The articulating head can define a counterbore formed at the lateral side and that is concentric with the passage. According to other features, the elbow prosthesis can include a coronoid implant that has a body and a stem. The body can have a superior articulating surface that includes a central ridge and an anterior buttress. The central ridge can be configured to accommodate articulation with a trochlea in an implanted position.Type: ApplicationFiled: July 8, 2019Publication date: January 30, 2020Inventors: Thomas J. Graham, Nicholas J. Katrana
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Publication number: 20190231541Abstract: A joint prosthesis is provided and may include first and second stem structures and first and second bearing members. The first stem structure may include a generally U-shaped portion having first and second legs. The second stem structure may include first and second bearing surfaces. The first bearing member may be removably coupled to the first leg and may include a first laterally facing bearing surface rotatably contacting the first bearing surface. The second bearing member may be removably coupled to the second leg and may include a second laterally facing bearing surface rotatably contacting the second bearing surface. The first laterally facing bearing surface may be disposed between the first leg and a first lateral side of the second stem. The second laterally facing bearing surface may be disposed between the second leg and a second lateral side of the second stem. The second lateral side may oppose the first lateral side.Type: ApplicationFiled: December 28, 2018Publication date: August 1, 2019Inventors: Nicholas J. Katrana, Brian K. Berelsman, Nathan A. Winslow
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Patent number: 10342665Abstract: An elbow prosthesis constructed in accordance to one example of the present teachings can include a capitellar implant having an articulating head and a stem. The articulating head can have a first articulating surface positioned generally between a lateral side and a medial side. A passage can extend through the articulating head from the lateral side to the medial side. The articulating head can define a counterbore formed at the lateral side and that is concentric with the passage. According to other features, the elbow prosthesis can include a coronoid implant that has a body and a stem. The body can have a superior articulating surface that includes a central ridge and an anterior buttress. The central ridge can be configured to accommodate articulation with a trochlea in an implanted position.Type: GrantFiled: February 3, 2017Date of Patent: July 9, 2019Assignee: Encore Medical, L.P.Inventors: Thomas J. Graham, Nicholas J. Katrana
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Publication number: 20190105163Abstract: An elbow prosthesis includes a capitellar implant having an articulating head and a stem. The articulating head includes a first passage along a first axis, a second passage along a second axis, and a receiving groove. The stem includes a proximal end and a connecting end. The connecting end includes a curved body having a bore. The curved body selectively mates with the receiving groove such that the bore axially aligns with the first axis of the first passage in an assembled position for collectively receiving a securing member.Type: ApplicationFiled: November 8, 2018Publication date: April 11, 2019Inventors: Nicholas J. Katrana, Thomas J. Graham, Brian K. Berelsman, Clinton E. Kehres
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Patent number: 10251690Abstract: An instrument for internal bone fracture fixation includes a shaft having a distal portion and a patient-specific bone holder coupled to the distal portion. The bone holder has a three-dimensional curved and patient-specific bone engagement surface designed during a preoperative plan based on a medical scan of a patient to match and conform to an outer surface of a bone fragment of the patient in only one position.Type: GrantFiled: April 26, 2017Date of Patent: April 9, 2019Assignee: Biomet Manufacturing, LLCInventors: Nicholas J. Katrana, Nathan A. Winslow, John M. McDaniel
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Patent number: 10231839Abstract: A method and apparatus for replacing a selected portion of the anatomy is described. In particular, a prosthesis can be provided to replace a portion of an articulating joint, such as an elbow. The apparatus can be modular for various reasons and each of the modular portions can include a different dimension to achieve a selected result. For example, the prosthesis can achieve a different size condylar replacement, a selected offset, a selected articulation, or combinations thereof.Type: GrantFiled: February 24, 2009Date of Patent: March 19, 2019Assignee: Encore Medical, L.P.Inventors: Brian K. Berelsman, Kevin T. Stone, Thomas J. Graham, Hill Hastings, Nicholas J. Katrana, Nathan A. Winslow
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Patent number: 10226346Abstract: A joint prosthesis is provided and may include first and second stem structures and first and second bearing members. The first stem structure may include a generally U-shaped portion having first and second legs. The second stem structure may include first and second bearing surfaces. The first bearing member may be removably coupled to the first leg and may include a first laterally facing bearing surface rotatably contacting the first bearing surface. The second bearing member may be removably coupled to the second leg and may include a second laterally facing bearing surface rotatably contacting the second bearing surface. The first laterally facing bearing surface may be disposed between the first leg and a first lateral side of the second stem. The second laterally facing bearing surface may be disposed between the second leg and a second lateral side of the second stem. The second lateral side may oppose the first lateral side.Type: GrantFiled: March 21, 2014Date of Patent: March 12, 2019Assignee: Encore Medical, L.P.Inventors: Nicholas J. Katrana, Brian K. Berelsman, Nathan A. Winslow
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Patent number: 10149766Abstract: An elbow prosthesis includes a capitellar implant having an articulating head and a stem. The articulating head includes a first passage along a first axis, a second passage along a second axis, and a receiving groove. The stem includes a proximal end and a connecting end. The connecting end includes a curved body having a bore. The curved body selectively mates with the receiving groove such that the bore axially aligns with the first axis of the first passage in an assembled position for collectively receiving a securing member. The second axis is located between the first axis and the proximal end of the stem.Type: GrantFiled: May 19, 2015Date of Patent: December 11, 2018Assignee: Encore Medical, LPInventors: Nicholas J. Katrana, Thomas J. Graham, Brian K. Berelsman, Clinton E. Kehres
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Patent number: 9901453Abstract: An elbow prosthesis includes a stem structure and an articulating component. The stem structure is operable to be positioned in a bone of a joint and includes a stem portion and a C-shaped body portion. The stem portion is operable to be positioned in the bone. The C-shaped body portion includes a first articulating surface bound by a medial wall and a lateral wall. The medial and lateral walls are separated by a first distance. The articulating component includes a second articulating surface positioned between a medial side surface and a lateral side surface. The medial and lateral side surfaces are separated by a second distance that is less than the first distance. The second articulating surface is configured to slidably communicate in a medial/lateral direction along the first articulating surface of the C-shaped body portion.Type: GrantFiled: March 30, 2015Date of Patent: February 27, 2018Assignee: Encore Medical, L.P.Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Publication number: 20170367831Abstract: An elbow prosthesis includes a stem structure and an articulating component. The stem structure is operable to be positioned in a bone of a joint and includes a stem portion and a C-shaped body portion. The stem portion is operable to be positioned in the bone. The C-shaped body portion includes a first articulating surface bound by a medial wall and a lateral wall. The medial and lateral walls are separated by a first distance. The articulating component includes a second articulating surface positioned between a medial side surface and a lateral side surface. The medial and lateral side surfaces are separated by a second distance that is less than the first distance. The second articulating surface is configured to slidably communicate in a medial/lateral direction along the first articulating surface of the C-shaped body portion.Type: ApplicationFiled: March 30, 2015Publication date: December 28, 2017Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Publication number: 20170367832Abstract: An elbow prosthesis according to the present teachings can include a stem structure and an articulating component. The stem structure can be operable to be positioned in a bone of a joint. The stem structure can include a stem portion that is operable to be positioned in the bone and a C-shaped body portion having a first retaining mechanism formed thereon. The articulating component can have a second retaining mechanism formed thereon. One of the first and second retaining mechanisms can comprise an extension portion and a first anti-rotation portion. The other retaining mechanism can comprise a receiving portion and a second anti-rotation portion. The articulating component can be advanced from an insertion position to an assembled position, such that the first and second mechanisms cooperatively interlock to inhibit translation and rotation of the articulating component relative to the C-shaped body portion of the stem structure.Type: ApplicationFiled: June 5, 2017Publication date: December 28, 2017Inventors: Nicholas J. Katrana, Nathan A. Winslow, Thomas M. Vanasse, Brian K. Berelsman
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Patent number: 9844439Abstract: A prosthesis to replace a portion of the anatomy, such as the humerus, can include a first shell. A second prosthesis can be positioned relative to the shell to provide the bearing surface to articulate with a glenoid prosthesis or glenoid. The second prosthesis can include a connection portion to engage a connection portion in the shell.Type: GrantFiled: July 15, 2015Date of Patent: December 19, 2017Assignee: Biomet Manufacturing, LLCInventors: Nicholas J. Katrana, Nathan A. Winslow
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Publication number: 20170258508Abstract: An instrument for internal bone fracture fixation includes a shaft having a distal portion and a patient-specific bone holder coupled to the distal portion. The bone holder has a three-dimensional curved and patient-specific bone engagement surface designed during a preoperative plan based on a medical scan of a patient to match and conform to an outer surface of a bone fragment of the patient in only one position.Type: ApplicationFiled: April 26, 2017Publication date: September 14, 2017Inventors: Nicholas J. Katrana, Nathan A. Winslow, John M. McDaniel