WO1994005211A1 - Appareil et procede pour couper les os - Google Patents

Appareil et procede pour couper les os Download PDF

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Publication number
WO1994005211A1
WO1994005211A1 PCT/US1992/007677 US9207677W WO9405211A1 WO 1994005211 A1 WO1994005211 A1 WO 1994005211A1 US 9207677 W US9207677 W US 9207677W WO 9405211 A1 WO9405211 A1 WO 9405211A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutter
bone
implant
body portion
rod
Prior art date
Application number
PCT/US1992/007677
Other languages
English (en)
Inventor
Charles A. Rockwood
Jeffrey M. Ondrla
David A. Susaraba
Jon C. Serbousek
Original Assignee
Depuy Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Depuy Inc. filed Critical Depuy Inc.
Priority to CA002144173A priority Critical patent/CA2144173C/fr
Priority to PCT/US1992/007677 priority patent/WO1994005211A1/fr
Priority to US08/367,337 priority patent/US5665090A/en
Publication of WO1994005211A1 publication Critical patent/WO1994005211A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1684—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the shoulder

Definitions

  • the present invention relates to the bone cutting apparatus and method. More particularly, the present invention relates to an apparatus and method for forming a preliminary cut in a proximal end of a bone to guide insertion and establish the position of a prosthetic implant within the bone. It is known to install prosthetic implants into a resected end of the bone to replace the humeral head in a total shoulder arthroplasty.
  • the humeral implant typically includes a body portion which is inserted into the resected proximal end of the humerus.
  • a stem is coupled to the body portion. The stem passes into the intramedullary canal of the humerus.
  • the body portion of the humeral component typically includes a plurality of fins designed to anchor the body portion of the implant within the bone and to provide rotational stability of the implant.
  • broaches having an increasing size to cut the bone from the proximal end of the humerus to permit installation of the implant.
  • the broaches are inserted into the resected end of the humerus and removed to remove bone.
  • the largest broach is typically sized to be slightly smaller than the implant so that the implant can be press-fit into the canal in the bone formed by the largest broach.
  • the broaches typically include fins corresponding to the fins on the implant.
  • One object of the present invention is to provide a cutting apparatus having substantially the same cross sectional size and shape as the broach and implant to cut a pattern in a proximal end of a bone for guiding insertion of the broach and implant into the bone.
  • Another object of the present invention is to provide a modular cutting apparatus capable of preparing the proximal end of the bone for receiving a prosthetic implant which has mismatched sizes of a body portion and a stem.
  • Another object of the present invention is to provide.a cutting apparatus which establishes the size of the implant and controls the version of the implant.
  • an apparatus for preparing a bone for receiving a prosthetic implant which has a body portion and a stem portion.
  • the body portion of the implant includes a plurality of fins arranged in a predetermined pattern on the body portion.
  • the apparatus comprises a cutter including means for cutting fin tracks in the bone to guide the plurality of fins on the implant as the implant is installed into the bone.
  • the apparatus also includes a rod coupled to the cutter for locating the cutter relative to an intramedullary canal of the bone, and means coupled to the cutter for driving the cutter and rod into the bone.
  • the means for cutting fin tracks in the bone includes a plurality of fins formed on the cutter and arranged in the same pattern as the plurality of fins on the body portion of the implant.
  • the fins on the cutter cut the bone in a predetermined pattern to guide installation of the implant.
  • an apparatus for preparing a bone for
  • SUBSTITUTE SHEET receiving a prosthetic implant which includes a body portion having a predetermined size and a stem portion coupled to the body portion.
  • the stem portion of the implant has a selected one of at least two different stem sizes.
  • the apparatus includes a cutter for cutting the bone to prepare the bone for receiving the body portion of the implant, and at least two rods having different sizes corresponding to the at least two different stem sizes.
  • the apparatus also includes means for coupling a selected rod having a size corresponding to the selected size of the stem to the cutter.
  • the rod is removable from the cutter to permit a rod having a different size to be selectively coupled to the cutter depending upon the selected size of the stem of the implant.
  • the apparatus further includes mean ⁇ coupled to the cutter for driving the cutter and the selected rod into the bone.
  • the cutter has a size corresponding to the predetermined size of the body portion of the implant.
  • the body portion of the implant includes a plurality of fins arranged in a predetermined pattern on the body portion, and the cutter includes means for cutting fin tracks in the bone to guide the plurality of fins on the implant as the implant is installed into the bone.
  • an apparatus for preparing a surface of a bone for receiving an implant having a body portion with a predetermined shape and a stem portion.
  • the apparatus includes a cutter for cutting the surface of the bone in a pattern corresponding to the predetermined shape of the body portion of the implant, and a rod coupled to the cutter for locating the cutter relative to the bone.
  • the apparatus also includes a collar slidably coupled to the cutter in a predetermined
  • the collar is configured to engage the bone to determine a proper rotational position of the cutter relative to the bone about a longitudinal axis of the rod.
  • the apparatus further includes means coupled to the cutter for driving the cutter and rod into the bone.
  • the body portion of the implant includes a plurality of fins arranged in a predetermined pattern on the body portion
  • the cutter includes a plurality of fins arranged in the same pattern as the plurality of fins on the body portion of the implant so that the cutter cuts the bone in a shape corresponding to the shape of the body portion of the implant.
  • the collar is formed to include a plurality of slots for receiving the plurality of fins of the cutter therethrough to align the collar in the predetermined orientation relative to the cutter.
  • a method for preparing a bone for receiving a prosthetic implant which includes a body portion having a predetermined size and a stem portion coupled to the body portion.
  • the stem portion has a selected one of at least two different stem sizes.
  • the method includes the steps of reaming an intramedullary canal of the bone with a reamer to determine the selected size of the stem, and selecting a cutter and a rod having sizes corresponding to the sizes of the body portion and stem of the prosthetic implant, respectively, from a set of cutters and rods having various sizes.
  • the method also includes the steps of coupling the selected cutter and the selected rod together to form a cutting apparatus, and driving the cutting apparatus into the bone so that the rod enters the reamed intramedullary canal of the bone and the cutter cuts the bone in a pattern to establish the position of the implant relative to the bone.
  • the method further includes the step of
  • the illustrated method further includes the step of rotationally aligning the cutting apparatus relative to the bone prior to the driving step.
  • the aligning step includes the step of placing a collar on the cutter in a predetermined orientation and rotating the cutting apparatus about a longitudinal axis of the rod until the collar is substantially parallel to a resected surface of the bone.
  • the installing step includes the step of inserting and removing broaches having increasing size into the bone using the pattern cut by the cutter as a guide.
  • the installing step also includes the step of inserting the implant into a canal cut by the broaches.
  • Fig. 1 is an exploded perspective view of the cutting apparatus of the present invention including the bone cutter, a rod which can be coupled to the cutter, and an alignment collar which is slidably coupled to the cutter.
  • Fig. 2 is a partial sectional view of the cutting apparatus of Fig. 1 after the rod has been coupled to the cutting apparatus.
  • Fig. 3 is a diagrammatical view illustrating cross sections of the outer peripheries of the cutter, a broach, and a prosthetic implant.
  • SUBSTITUTE SHEET Fig. 4 is a diagrammatical view illustrating a reamer for reaming out an intramedullary canal of the humerus.
  • Fig. 5 illustrates the cutting apparatus of the present invention with the rod inserted into the intramedullary canal of the humerus.
  • Fig. 6 is a side elevational view of Fig. 5.
  • Fig. 7 is a view similar to Fig. 5, after the cutting apparatus of the present invention has been driven into the humerus.
  • Fig. 8 is a perspective view illustrating removal of bone from an area cut by the cutting apparatus.
  • Fig. 9 is a perspective view illustrating a broach being inserted into the humerus using the pattern cut by the cutting apparatus as a guide.
  • Fig. 10 illustrates insertion of a prosthetic implant into the area of the humerus cut out by the broach.
  • FIG. 1 illustrates a modular cutting apparatus 10 of the present invention.
  • Cutting apparatus 10 includes an osteotome or cutter 12, and intramedullary rod 14, and a collar 16.
  • a handle assembly 17 includes a drive rod 18 coupled to cutter 12 and a head 20.
  • Cutter 12 includes a body 22 formed to include a first elongated aperture 24 for receiving the rod 14 therethrough to couple rod 14 to cutter 12. The outer periphery of aperture 24 is defined by cutting edge 26.
  • Body 22 also includes a second aperture 28 defined by cutting edge 30.
  • Cutter 12 further includes a medial side cutting fin 32, and a lateral side cutting fin 34.
  • Anterior/posterior cutting fins 36 and 38 are also
  • Cutting apparatus 10 is universal and designed for use on either a right side humerus or a left side humerus.
  • Collar 16 includes a top surface 40 and a bottom surface 42. Collar 16 is formed to include an aperture 44 extending between the top and bottom surfaces 40 and 42. Aperture 44 has a configuration substantially identical to the configuration of cutter 12 so that collar 16 can slide back and forth in the direction of double headed arrow 46 over cutter 12. Collar 16 is formed to include slots 48, 50, 52 and 54 which correspond in shape to fins 32, 34, 36 an 38, respectively, of cutter 12. Aperture 44 is aligned at an angle relative to cutter 12 to approximate the angle of resected surface 94 of humerus 70. (See Figs. 4-7)
  • aperture 44 is angled at about 45 degrees relative to top and bottom surfaces 40 and 42. Therefore, collar 16 slides over cutter 12 at an angle substantially corresponding to an angle of the resected bone 94 as illustrated in Figs. 5 and 7.
  • Rod 14 includes a shaft 56 having a smaller diameter than a body 58 of rod 14. An end 60 of rod 14 is threaded. As illustrated best in Fig. 2, shaft 56 of rod 14 is inserted to aperture 24 of cutter 12. Threaded section 60 of rod 14 is coupled to threads 62 formed in end portion 64 of body 22. It is understood that rod 14 does not have to be threadably coupled to cutter 12. Rod 14 can be formed so that shaft 56 engages a wall of cutter 12 defining aperture 24 to position or couple rod 14 to cutter 12 without the use of threads. Rod 14 can also be formed integrally with cutter 12, if desired. However, providing separate rods 14 and cutters 12 provides increased flexibility with fewer total parts. As illustrated in Fig. 2, a sloped inner wall 66 i ⁇ formed within aperture 28. As discu ⁇ sed below,
  • SUBSTITUTE SHEET cutter 12 cuts bone until wall 66 engages a top surface of the bone. After that point, bone is merely compressed as cutter 12 is driven further into the bone.
  • the prosthetic implant 74 illustrated in Fig. 10 and the broach 76 illustrated in Fig. 9 each include a plurality of fins.
  • Implant 74 includes a body portion 75 and a stem 76.
  • Body portion 75 of implant 74 includes a medial fin 78, a lateral fin 80, and anterior and posterior fins 82.
  • Broach 76 includes a body portion 84 and a stem 86.
  • Body portion 84 of broach 76 includes a medial fin 88, a lateral fin 90, and anterior and po ⁇ terior fins 92.
  • the fins on broach 76 are designed to cut humerus 70 so that the fin ⁇ on implant 74 can be pre ⁇ s-fit into the grooves cut by fin ⁇ of broach 76.
  • Fin ⁇ 32, 34, 36 and 38 of cutter 12 cut a pattern in resected end 94 of humerus 70 to provide fin tracks for the fin ⁇ of broach 76.
  • Fig. 3 illu ⁇ trate ⁇ the relative ⁇ ize and shape of cross sections taken through the cutter 12, implant 74, and broach 76.
  • the solid line 96 illustrate ⁇ the cross sectional dimension of body 75 of implant 74.
  • Line 98 illu ⁇ trates the cros ⁇ sectional dimension of broach 76.
  • Dotted line 100 illustrates the cross sectional dimension of cutter 22.
  • Cutter 22 cuts humerus 70 in a pattern defined by dotted line 100. Therefore, cutter 12 cuts the resected end 94 of humeru ⁇ 70 in a.
  • Fins 32, 34, 36 and 38 of cutter 12 cut fin tracks in humerus 70 to guide insertion of fins 88, 90 and 92 of broach 76 and fins 78, 80 and 82 of implant 74.
  • Figs. 4-10 illustrate the method in which the cutting apparatus 10 i ⁇ u ⁇ ed to prepare humeru ⁇ 70 for in ⁇ tallation of a prosthetic implant 74.
  • humeru ⁇ 70 i ⁇ discussed a ⁇ the bone on which the cutting apparatus 10 is used.
  • humeru ⁇ 70 i ⁇ discussed a ⁇ the bone on which the cutting apparatus 10 is used.
  • the method of the present invention begins after the humeral head has been resected from humerus 70 to form resected proximal surface 94.
  • a reamer 102 is used to ream the medullary canal of humerus 12.
  • a small reamer such as 6 mm reamer i ⁇ used first to make a pilot hole in the cancellous ⁇ urface of the bone eccentrically and a ⁇ ⁇ uperior a ⁇ po ⁇ ible so reamer 102 passes down into the intramedullary canal of humerus 70 as illu ⁇ trated in Fig. 4.
  • reamers 102 are then inserted into the hole bored by the 6 mm reamer in humeru ⁇ 70. For instance, an 8 mm reamer, then a 10 mm reamer, then a 12 mm reamer, then a 14 mm reamer etc. are used until reamer 102 begins to bite on cortical bone of the intramedullary canal of humerus 70.
  • the final reamer ⁇ ize u ⁇ ed determine ⁇ the ⁇ tem size of the prosthetic implant 74 illustrated in Fig. 9. For example, if a 10 mm reamer 102 is loose in humerus 70, and a 12 mm reamer 102 begins to bite on the cortical bone, then an implant 74 having a 12 mm ⁇ tem will be used.
  • an appropriate size cutter 12 and rod 14 are selected. For example, if the la ⁇ t reamer 72 u ⁇ ed was a 12 mm reamer, then a 12 mm cutter 12 and 12 mm rod 14 are also chosen. Depending on the configuration of humerus 70, a surgeon can select a different ⁇ ize cutter 12 if desired.
  • Humeral implants 74 are provided with body portion ⁇ 75 and ⁇ tem ⁇ 76 having different or mismatched sizes.
  • implant 74 can have a 12 mm body and a 10 mm ⁇ tem.
  • it i ⁇ known to provide modular implant ⁇ ⁇ o that the ⁇ tem ⁇ ize and body ⁇ ize can be provided with modular implant ⁇ ⁇ o that the ⁇ tem ⁇ ize and body ⁇ ize.
  • the present invention provides a modular cutting apparatus 10 which permits the flexibility to allow the surgeon to use a cutter 12 of one size and a rod 14 of another size.
  • cutters 12 having even number sizes between 6 mm and 20 mm are provided.
  • rods 14 having even number sizes between 6 mm and 20 mm are also provided.
  • a separate collar 16 is provided for each cutter size. Therefore, a surgeon can select different size cutters 12 and rod ⁇ 14 depending upon the ⁇ pecific configuration of the implant 74 selected for each humerus 70.
  • the size of rod 14 is the diameter of body 58 of rod 14.
  • the size of cutter 12 corresponds to a body size of an implant which has a diameter at a bottom end of the body which is coupled to a stem equal to the cutter size.
  • rod 14 is threaded into cutter 12 to couple rod 14 to cutter 12 securely.
  • Collar 16 is slidably coupled over cutter 12 in a predetermined orientation established by slots 48, 50, 52 and 54 of collar 16 and fins 32, 34, 36 and 38 of cutter 12.
  • Rod 14 i ⁇ then in ⁇ erted into the hole in humeru ⁇ 70 formed by reamer 102. Movement of rod 14 down the reamed canal prevent ⁇ cutter 12 from drifting into varus as lateral side fin 34 engage ⁇ cortical bone of humeru ⁇ 70.
  • Collar 16 is used to determine proper rotation of cutter 12 about the longitudinal axis of rod 14 prior to cutting the humerus 70.
  • collar 16 i ⁇ moved down on cutter 12 until surface 42 of collar 16 engages re ⁇ ected proximal surface of 94 of humeru ⁇ 70.
  • Cutting apparatus 10 is then rotated about the longitudinal axis of rod 14 until collar 16 lies sub ⁇ tantially flat on or parallel to resected surface 94
  • FIG. 7 illustrates the position of cutting apparatus 10 after cutter 12 has been driven into humerus 70.
  • Cutting edges 26 and 30 a ⁇ well a ⁇ fins 32, 34, 36 and 38 cut into the resected ⁇ urface 94 of humeru ⁇ 70 until surface 66 of cutter 12 engage ⁇ re ⁇ ected ⁇ urface 94.
  • Driving cutter 12 into humeru ⁇ 70 cut ⁇ an appropriate amount of bone from humeru ⁇ 70 to receive a lateral fin 90 of broach 76.
  • cutter 12 create ⁇ the anterior, posterior and inferior fin tracks.
  • Cutter 12 also outlines the amount of bone that will need to be removed before seating broach 76 and prosthetic implant 74.
  • Cutter 12 mimics the shape of broach 76 and implant 74.
  • Cutting apparatus 10 is then removed from humerus 70.
  • An outline or pattern 108 illustrated in Fig. 8 which is cut by cutter 12 enables a surgeon to remove a portion of the cancellous bone with a small osteotome, rongeurs, or tweezer ⁇ illustrated at 110 prior to inserting broach 76.
  • a surgeon can inspect the size cut made by cutter 12 and determine whether a larger size cutter 12
  • SUBSTITUTE SHEET can be used. Because the size of cutter 12 determines the size of body portion 75 of implant 74, a surgeon can use cutter 12 to determine the optimum size implant 74 to install into humerus 70. As illu ⁇ trated in Fig. 9, broaching i ⁇ done in a sequential manner ⁇ tarting with a ⁇ mall broach and gradually increa ⁇ ing a broach 76 having substantially the same size as implant 74. The correct stem and body sizes for implant 74 have been determined from reaming with reamer 72 and utilizing the appropriate size cutter 12.
  • a driver/extractor 112 is coupled to broach 76 and locked into position as illustrated in Fig. 9. Following the fin tracks previously establi ⁇ hed by cutting apparatu ⁇ 10, broach 76 is in ⁇ erted into and removed from humerus 70. Sequential broaching insure ⁇ a progressive removal of bone to reduce the likelihood of cortical fracture. It is important while broaching to maintain proper version of broach 76 by following the previou ⁇ ly cut fin track ⁇ established by cutter 12. As discussed above, if the proximal humerus is large in proportion to the medullary canal, a mismatched humeral implant body and ⁇ tem combination is available. The mi ⁇ matched combination allow ⁇ for better fitting depending upon the ⁇ hape of the humeru ⁇ 70. The humeral implant 74 i ⁇ approximately 1 mm larger than the corresponding broach size so that the pres ⁇ -fit of implant 74 can be obtained.
  • extractor/driver 112 i ⁇ coupled to implant 74.
  • Implant 74 i ⁇ then inserted down the humeral canal cut by broach 76. Fins of the implant are aligned with the fin tracks previously created by cutting apparatus 10 and a broach 76.
  • Implant 76 may be cemented, if desired.
  • the humeral head (not shown) i ⁇ then attached to implant 74 to complete the reconstruction of the humerus.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un appareil et un procédé pour préparer un os afin qu'il puisse recevoir un implant prothétique (74). L'appareil a une portion de corps (75) comprenant une pluralité de nervures (78, 80, 82) agencées suivant un motif prédéterminé et une portion de tige (76). L'appareil comprend un dispositif pour couper (12), permettant de réaliser des glissières pour les nervures dans l'os (70), afin de guider la pluralité de nervures (78, 80, 82) sur l'implant (74) à mesure que l'implant (74) est installé dans l'os (70). L'appareil comprend également une tige (14) couplée au dispositif pour couper (12), permettant de positionner le dispositif pour couper (12) par rapport au canal médullaire de l'os (70), ainsi qu'une tige d'entraînement (18) et une tête (20) couplées au dispositif pour couper (12), permettant d'entraîner le dispositif pour couper (12) et la tige (14) dans l'os (70). De préférence, la tige (14) peut s'enlever du dispositif pour couper (12) pour permettre à une tige ayant une taille différente d'être couplée sélectivement au dispositif pour couper (12) en fonction de la taille choisie pour la tige (76) de l'implant (74). L'appareil comprend également un collier (16) couplé d'une manière coulissante au dispositif pour couper (12) dans une orientation prédéterminée. Le collier (16) est formé pour s'engager avec l'os (70), afin de déterminer une position en rotation correcte du dispositif pour couper (12) par rapport à l'os (70) suivant l'axe longitudinal de la tige (14).
PCT/US1992/007677 1992-09-09 1992-09-09 Appareil et procede pour couper les os WO1994005211A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002144173A CA2144173C (fr) 1992-09-09 1992-09-09 Appareil pour sectionner les os et methode
PCT/US1992/007677 WO1994005211A1 (fr) 1992-09-09 1992-09-09 Appareil et procede pour couper les os
US08/367,337 US5665090A (en) 1992-09-09 1992-09-09 Bone cutting apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002144173A CA2144173C (fr) 1992-09-09 1992-09-09 Appareil pour sectionner les os et methode
PCT/US1992/007677 WO1994005211A1 (fr) 1992-09-09 1992-09-09 Appareil et procede pour couper les os

Publications (1)

Publication Number Publication Date
WO1994005211A1 true WO1994005211A1 (fr) 1994-03-17

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Application Number Title Priority Date Filing Date
PCT/US1992/007677 WO1994005211A1 (fr) 1992-09-09 1992-09-09 Appareil et procede pour couper les os

Country Status (2)

Country Link
CA (1) CA2144173C (fr)
WO (1) WO1994005211A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613970A (en) * 1995-07-06 1997-03-25 Zimmer, Inc. Orthopaedic instrumentation assembly having an offset bushing
US5634927A (en) * 1995-07-06 1997-06-03 Zimmer, Inc. Sizing plate and drill guide assembly for orthopaedic knee instrumentation
US5849015A (en) * 1997-09-11 1998-12-15 Bristol-Myers Squibb Company Orthopaedic stem inserter with quick release lever and ratchet
US5951564A (en) * 1996-12-18 1999-09-14 Bristol-Myers Squibb Company Orthopaedic positioning apparatus
EP1374782A2 (fr) * 2002-06-21 2004-01-02 Depuy Products, Inc. Guide de coupe et outil de coupe pour une prothèse
US7935118B2 (en) 2002-06-21 2011-05-03 Depuy Products, Inc. Prosthesis removal cutting guide, cutting tool and method
US8491596B2 (en) 2002-06-21 2013-07-23 Depuy Products, Inc. Method for removal of bone

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554192A (en) * 1967-07-24 1971-01-12 Orthopedic Equipment Co Medullary space drill
US3977398A (en) * 1976-01-12 1976-08-31 The Sampson Corporation Fluted sub-trochanteric nail system
US4706659A (en) * 1984-12-05 1987-11-17 Regents Of The University Of Michigan Flexible connecting shaft for intramedullary reamer
US4751922A (en) * 1986-06-27 1988-06-21 Dipietropolo Al Flexible medullary reamer
US4952213A (en) * 1989-02-03 1990-08-28 Boehringer Mannheim Corporation Tibial cutting guide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554192A (en) * 1967-07-24 1971-01-12 Orthopedic Equipment Co Medullary space drill
US3977398A (en) * 1976-01-12 1976-08-31 The Sampson Corporation Fluted sub-trochanteric nail system
US4706659A (en) * 1984-12-05 1987-11-17 Regents Of The University Of Michigan Flexible connecting shaft for intramedullary reamer
US4751922A (en) * 1986-06-27 1988-06-21 Dipietropolo Al Flexible medullary reamer
US4952213A (en) * 1989-02-03 1990-08-28 Boehringer Mannheim Corporation Tibial cutting guide

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613970A (en) * 1995-07-06 1997-03-25 Zimmer, Inc. Orthopaedic instrumentation assembly having an offset bushing
US5634927A (en) * 1995-07-06 1997-06-03 Zimmer, Inc. Sizing plate and drill guide assembly for orthopaedic knee instrumentation
US5951564A (en) * 1996-12-18 1999-09-14 Bristol-Myers Squibb Company Orthopaedic positioning apparatus
US5849015A (en) * 1997-09-11 1998-12-15 Bristol-Myers Squibb Company Orthopaedic stem inserter with quick release lever and ratchet
EP1374782A2 (fr) * 2002-06-21 2004-01-02 Depuy Products, Inc. Guide de coupe et outil de coupe pour une prothèse
EP1374782A3 (fr) * 2002-06-21 2004-11-17 Depuy Products, Inc. Guide de coupe et outil de coupe pour une prothèse
AU2003204786B2 (en) * 2002-06-21 2009-05-21 Depuy Products, Inc. Prosthesis cutting guide, cutting tool and method
US7935118B2 (en) 2002-06-21 2011-05-03 Depuy Products, Inc. Prosthesis removal cutting guide, cutting tool and method
US8211113B2 (en) 2002-06-21 2012-07-03 Depuy Products, Inc. Prosthesis cutting guide, cutting tool and method
US8491596B2 (en) 2002-06-21 2013-07-23 Depuy Products, Inc. Method for removal of bone

Also Published As

Publication number Publication date
CA2144173A1 (fr) 1994-03-17
CA2144173C (fr) 2003-08-26

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