`US007981158B2
`
`c12) United States Patent
`Fitz et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 7,981,158 B2
`*Jul. 19, 2011
`
`(54)
`
`(75)
`
`(73)
`( *)
`
`Assignee:
`Notice:
`
`PATIENT SELECTABLE JOINT
`ARTHROPLASTY DEVICES AND SURGICAL
`TOOLS
`Inventors: Wolfgang Fitz, Sherborn, MA (US);
`Philipp Lang, Lexington, MA (US);
`Raymond A. Bojarski, Attleboro, MA
`(US); Daniel Steines, Palo Alto, CA
`(US)
`ConforMIS, Inc., Burlington, MA (US)
`Subject to any disclaimer, the term ofthis
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 370 days.
`This patent is subject to a terminal dis(cid:173)
`claimer.
`(21) Appl. No.: 12/135,603
`Jun. 9, 2008
`(22) Filed:
`Prior Publication Data
`(65)
`US 2008/0281426 Al
`Nov. 13, 2008
`Related U.S. Application Data
`(63) Continuation of application No. 12/048,764, filed on
`Mar. 14, 2008, and a continuation-in-part of
`application No. 11/671,745, filed on Feb. 6, 2007, and
`a continuation-in-part of application No. 11/002,573,
`filed on Dec. 2, 2004, now Pat. No. 7,534,263, which is
`a continuation-in-part of application No. 10/724,010,
`filed on Nov. 25, 2003, now Pat. No. 7,618,451, which
`is
`a
`continuation-in-part of application No.
`10/305,652, filed on Nov. 27, 2002, now Pat. No.
`7,468,075, which
`is a continuation-in-part of
`application No. 10/160,667, filed on May 28, 2002,
`said
`application No.
`11/671,745
`is
`a
`continuation-in-part of application No. 10/728,731,
`filed on Dec. 4, 2003, now Pat. No. 7,634,119, said
`application No. 11/671,745 is a continuation-in-part of
`application No. 10/681,750, filed on Oct. 7, 2003.
`(60) Provisional application No. 60/894,744, filed on Mar.
`14, 2007, provisional application No. 60/975,028,
`filed on Sep. 25, 2007, provisional application No.
`601765,592, filed on Feb. 6, 2006, provisional
`application No. 60/785,168, filed on Mar. 23, 2006,
`provisional application No. 60/788,339, filed on Mar.
`31, 2006, provisional application No. 60/293,488,
`filed on May 25, 2001, provisional application No.
`60/363,527, filed on Mar. 12, 2002, provisional
`
`(51)
`
`application No. 60/380,695, filed on May 14, 2002,
`provisional application No. 60/380,692, filed on May
`14, 2002, provisional application No. 60/431,176,
`filed on Dec. 4, 2002, provisional application No.
`60/467,686, filed on May 2, 2003, provisional
`application No. 60/416,601, filed on Oct. 7, 2002.
`Int. Cl.
`A61F 2146
`(2006.01)
`(52) U.S. Cl. ........................ 623/17.16; 606/96; 128/898
`(58) Field of Classification Search ................ 606/86 R,
`606/88, 87, 96; 623/17.16, 14.12, 11.11,
`623/21.11; 600/407, 410; 703/11; 128/898
`See application file for complete search history.
`References Cited
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`(56)
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`U.S. PATENT DOCUMENTS
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`
`DE
`
`FOREIGN PATENT DOCUMENTS
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`(Continued)
`OTHER PUBLICATIONS
`
`Portheine, F., Radermacher K., Zimolong, A., et al, "Development of
`a Clinical Demonstrator for Computer Assisted Orthopedic Surgery
`with CT Image Based Individual Templates." in Lemke HU, Vannier
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`
`(Continued)
`Primary Examiner - Pedro Philogene
`(74) Attorney, Agent, or Firm - Sunstein Kann Murphy &
`Timbers LLP
`ABSTRACT
`(57)
`A patellar 3-D guidance tool includes a template. The tem(cid:173)
`plate includes at least one contact surface for engaging a
`surface of the patella. The at least one contact surface sub(cid:173)
`stantially conforms with the surface associated with the patel(cid:173)
`lar. At least one guide aperture directs movement of a surgical
`instrument, wherein the shape and/or position of the guide
`aperture is based, at least in part, on three or more anatomic
`reference points associated with the patellar.
`81 Claims, 68 Drawing Sheets
`
`-1-
`
`Smith & Nephew Ex. 1020
`IPR Petition - USP 7,534,263
`
`
`
`US 7,981,158 B2
`Page 2
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`-2-
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`
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`US 7,981,158 B2
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