US 12,102,339 B2
Instrument for intra-operative implant templating using fluoroscopy
David Reynolds, Fairport, NY (US); Paul Stemniski, Memphis, TN (US); and Richard Obert, Poway, CA (US)
Assigned to WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed by WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed on Mar. 30, 2023, as Appl. No. 18/193,165.
Application 18/193,165 is a continuation of application No. 17/213,937, filed on Mar. 26, 2021, abandoned.
Application 17/213,937 is a continuation of application No. 16/164,313, filed on Oct. 18, 2018, granted, now 10,987,114, issued on Apr. 27, 2021.
Application 16/164,313 is a continuation of application No. 14/096,831, filed on Dec. 4, 2013, granted, now 10,105,151, issued on Oct. 23, 2018.
Claims priority of provisional application 61/736,323, filed on Dec. 12, 2012.
Prior Publication US 2023/0233215 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/17 (2006.01); A61B 17/15 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/1717 (2013.01) [A61B 17/15 (2013.01); A61B 17/1703 (2013.01); A61B 17/1775 (2016.11); A61B 2090/3966 (2016.02)] 14 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
(a) a first assembly having a first radio-opaque marker configured to indicate a profile that corresponds to an outline shape of a first portion of an intramedullary implant when the intramedullary implant is positioned in a bone;
(b) a second assembly having a second radio-opaque marker configured to indicate a profile that corresponds to an outline shape of a second portion of the intramedullary implant so that an alignment adjustment of the intramedullary implant can be performed relative to at least one of two different planes; and
(c) a third radio-opaque marker forming an alignment feature for the surgical instrument, wherein
the alignment feature comprises a peg with a ring configured to circumscribe the peg upon alignment of the surgical instrument and an intramedullary canal of the bone to provide a fluoroscopic representation of an aligned planar view for the surgical instrument,
the first radio-opaque marker includes two first elongate radio-opaque markers each extending along a first and a second longitudinal axis, respectively, that are not parallel and not orthogonal to each other, wherein the two first elongate radio-opaque markers are configured to indicate the profile of the first portion of the intramedullary implant by longitudinally extending along opposite sides of the intramedullary implant when the instrument and the two first elongate radio-opaque markers are overlaid over the bone and the intramedullary implant positioned in the bone, and
the second radio-opaque marker includes two second elongate radio-opaque markers each extending along longitudinal axes that are parallel to each other, wherein the two second elongate radio-opaque markers are configured to indicate the profile of the second portion of the intramedullary implant by longitudinally extending along the opposite sides of the intramedullary implant when the instrument and the two second elongate radio-opaque markers are overlaid over the bone and the intramedullary implant positioned in the bone.