CA2500277A1 - Intramedullary nail - Google Patents

Intramedullary nail Download PDF

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Publication number
CA2500277A1
CA2500277A1 CA002500277A CA2500277A CA2500277A1 CA 2500277 A1 CA2500277 A1 CA 2500277A1 CA 002500277 A CA002500277 A CA 002500277A CA 2500277 A CA2500277 A CA 2500277A CA 2500277 A1 CA2500277 A1 CA 2500277A1
Authority
CA
Canada
Prior art keywords
intramedullary nail
nail according
holes
alpha
smaller
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002500277A
Other languages
French (fr)
Other versions
CA2500277C (en
Inventor
Daniel Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Synthes USA LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2500277A1 publication Critical patent/CA2500277A1/en
Application granted granted Critical
Publication of CA2500277C publication Critical patent/CA2500277C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices

Abstract

The intramedullary nail has a longitudinal axis (5), a near end (1) with means (8) for coupling to an insertion device and a far end (2) with a tip (7) for insertion into the intramedullary canal of a long bone. The far end (2) is provided with at least two traversing through holes (3) with axes (6), all of said through holes (3) being grouped in said far end (2) within a distance x measured from said tip (7) to the axis (6) of the most distant hole (3). The nail is provided with at least a third through hole (3) with axis (6) in said far end (2) which contains the first and second holes (3) and the projection of the hole axis (6) of said through holes (3) in a plane orthogonal to said longitudinal axis (5) is such that at least two of said projected hole axis (6) are at an angle .alpha. greater than zero and less than 90~ with respect to each other.

Claims (33)

1. Intramedullary nail with a longitudinal axis (5), a near end (1) with means (8) for coupling to an insertion device and a far end (2) with a tip (7) for insertion into the intramedullary canal of a long bone, said far end (2) being provided with at least two traversing through holes (3) with axes (6), all of said through holes (3) being grouped in said far end (2) within a distance x measured from said tip (7) to the axis (6) of the most distant hole (3); and characterized in that, A) said nail is provided with at least a third through hole (3) with axis (6) in said far end (2) which contains the first and second holes (3); and B) the projection of the hole axis (6) of said through holes (3) in a plane orthogonal to said longitudinal axis (5) is such that at least two of said projected hole axes (6) are at an angle .alpha.
greater than zero and less than 90° with respect to each other.
2. Intramedullary nail according to claim 1, characterized in that said distance x is equal or smaller than 25d, preferably equal or smaller than 7d, d being the diameter of the largest of said holes (3).
3. Intramedullary nail according to claim 1, characterized in that said distance x is equal or smaller than 25d, preferably equal or smaller than 7d, d being the mean diameter of said holes (3).
4. Intramedullary nail according to one of the claims 1 - 3, characterized in that at least two of said projected hole axes (6) are at an angle .alpha. of 58° <= .alpha. <=
62°, preferably of 59° <= .alpha. <=
61°.
5. Intramedullary nail according to one of the claims 1 - 3, characterized in that at least two of said projected hole axes (6) are at an angle .alpha. of 43° <= .alpha. <=
47°, preferably of 44° <= .alpha.<=
46°.
6. Intramedullary nail according to one of the claims 1 - 3, characterized in that at least two of said projected hole axes (6) are at an angle .alpha. of 35° <= .alpha. <=
37°, preferably of 35,5° <= .alpha. <=
36,5°.
7. Intramedullary nail according to one of the claims 1 - 3, characterized in that at least two of said projected hole axes (6) are at an angle .alpha. of 29° <= .alpha. <=31°, preferably of 29,5° <= .alpha. <=
30,5°.
8. Intramedullary nail according to one of the claims 1 to 7, characterized in that a number of n >= 4 holes (3) are grouped in said far end (2) within said distance x.
9. Intramedullary nail according to one of the claims 1 to 8, characterized in that said distance x is smaller than 2(n)(d), preferably smaller than 1,8(n)(d), d being the diameter of the largest of said holes (3) .
10. Intramedullary nail according to claim 9, characterized in that the value for x is smaller than 1,5(n)(d), preferably smaller than 1,4 (n)(d) .
11. Intramedullary nail according to one of the claims 1 to 9, characterized in that said distance x is smaller than 2(n)(d), preferably smaller than 1,8(n)(d), d being the mean diameter of said holes (3).
12. Intramedullary nail according to claim 11, characterized in that the value for x is smaller than 1,5(n)(d), preferably smaller than 1,4 (n)(d) .
13. Intramedullary nail according to one of the claims 1 to 12, characterized in that the value of n is 5.
14. Intramedullary nail according to one of the claims 1 to 12, characterized in that the value of n is 6.
15. Intramedullary nail according to one of the claims 1 to 14, characterized in that at least two of said through holes (3) are located in such a way that the geometric hollow cylinders, as defined by said holes (3), intersect with one another.
16. Intramedullary nail according to claim 15, characterized in that said two intersecting through holes (3) have intersecting axes (6).
17. Intramedullary nail according to claim 16, characterized in that said two intersecting through holes (3) are spaced at an angle .alpha. of 88 ° - 92 ° .
18. Intramedullary nail according to one of the claims 1 to 17, characterized in that at least one of said through holes (3) is provided with an internal thread.
19. Intramedullary nail according to one of the claims 1 to 18, characterized in that at least part of at least one of said through holes (3) is conical.
20. Intramedullary nail according to one of the claims 15 to 19, characterized in that said two intersecting through holes (3) are located at the same distance (a) from said tip (7).
21. Intramedullary nail according to one of the claims 15 and 20, characterized in that only one of said two holes (3) which intersect both are included in the number n of said holes (3).
22. Intramedullary nail according to one of the claims 1 to 21, characterized in that it has a solid cross-section.
23. Intramedullary nail according to one of the claims 1 to 21, characterized in that has a tubular cross-section.
24. Intramedullary nail according to one of the claims 1 to 23, characterized in that the axes of all holes (3) are located in planes orthogonal to said longitudinal axis (5).
25. Intramedullary nail according to one of the claims 1 to 24, characterized in that the distance (a) between the tip (7) and that through hole (3) which is nearest to said tip (7) is a <= 5 d whereby d is the diameter of said through hole (3).
26. Intramedullary nail according to claim 25, characterized in that said distance a is <= 1,5 d.
27. Intramedullary nail according to one of the claims 1 to 26, characterized in that a plurality of n through holes (3) are provided whose centres (4) are located at a distance x from said tip (7) which is comprised in the range of 1,05 (n)(d) <= x <= 3,0 (n)(d)
28. Intramedullary nail according to one of the claims 1 to 27, characterized in that a plurality of n through holes (3) are provided whose centres (4) are located at a distance x from said tip (7) which is smaller than 4 d + (n-1) (2,2 d).
29. Intramedullary nail according to one of the claims 1 to 28, characterized in that the distance b between the axes (6) of two adjacent through holes (3) is b <= 1.5 d.
30. Assembly with an intramedullary nail according to one of the claims 1 to 29, characterized in that at least two of said holes (3) have axis projections in the orthogonal plane, such that the axis projections are parallel to one another.
31. Assembly with an intramedullary nail according to one of the claims 1 to 30, characterized in that at least two of said holes (3) have axis projections in the orthogonal plane which are at right angles to each other in the orthogonal plane.
32. Assembly with an intramedullary nail according to one of the claims 1 to 31, characterized in that it comprises an interlocking screw which has a major diameter equal or larger than 0,9 times the hole diameter into which it is inserted.
33. Assembly with an intramedullary nail according to claim 32, characterized in that the interlocking screw has a major diameter equal or larger than 0,94, preferably 0,96 times the hole diameter into which it is inserted.
CA2500277A 2002-09-27 2002-09-27 Intramedullary nail Expired - Lifetime CA2500277C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2002/000538 WO2004028383A1 (en) 2002-09-27 2002-09-27 Intramedullary nail

Publications (2)

Publication Number Publication Date
CA2500277A1 true CA2500277A1 (en) 2004-04-08
CA2500277C CA2500277C (en) 2010-11-23

Family

ID=32034699

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2500277A Expired - Lifetime CA2500277C (en) 2002-09-27 2002-09-27 Intramedullary nail

Country Status (13)

Country Link
US (1) US8083742B2 (en)
EP (1) EP1545356B1 (en)
JP (1) JP4291776B2 (en)
CN (1) CN100484489C (en)
AR (1) AR041035A1 (en)
AT (1) ATE336954T1 (en)
AU (1) AU2002328570B2 (en)
CA (1) CA2500277C (en)
CL (1) CL2003001852A1 (en)
DE (1) DE60214251T2 (en)
ES (1) ES2269754T3 (en)
MX (1) MXPA05003270A (en)
WO (1) WO2004028383A1 (en)

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US20060206044A1 (en) 2002-08-10 2006-09-14 Simon Willliam H Method and apparatus for repairing the mid-food region via an intramedullary nail
US20060015101A1 (en) 2004-07-15 2006-01-19 Wright Medical Technology, Inc. Intramedullary fixation assembly and devices and methods for installing the same
KR101230768B1 (en) * 2004-10-14 2013-02-06 신세스 게엠바하 Intramedullary pin for insertion in medullary cavity of femur
CA2628532C (en) 2005-11-16 2013-05-07 Synthes Gmbh Device for bone fixation with at least one through hole
EP2166973B1 (en) 2007-05-25 2016-03-16 Zimmer GmbH Reinforced intramedullary nail
US8771283B2 (en) 2007-12-17 2014-07-08 Wright Medical Technology, Inc. Guide assembly for intramedullary fixation and method of using the same
EP2349040B9 (en) 2008-10-15 2014-12-17 Zimmer GmbH Intramedullary nail
US8808336B2 (en) 2009-07-14 2014-08-19 Neil Duggal Joint arthrodesis and arthroplasty
US8562606B2 (en) 2009-12-11 2013-10-22 Small Bone Innovations, Inc. Ankle fusion device, instrumentation and methods
JP2011227953A (en) * 2010-04-16 2011-11-10 On Semiconductor Trading Ltd Laser beam detecting circuit
US8540714B2 (en) 2010-05-11 2013-09-24 Orthopediatrics Corp. Pediatric intramedullary nail
DE102010023640B4 (en) 2010-06-14 2015-04-09 Bernhard Clasbrummel Nail screw system for angular stable osteosynthesis
DE102010048052B4 (en) 2010-10-12 2015-06-25 Bernhard Clasbrummel Nail screw system for osteosynthesis
ES2587762T3 (en) 2011-09-16 2016-10-26 Stryker European Holdings I, Llc Intramedullary nail locking hole arrangement
US9125695B2 (en) * 2012-10-18 2015-09-08 Bespa, Inc. Ankle fusion nail apparatus and method
US20160058484A1 (en) * 2014-08-26 2016-03-03 Wright Medical Technology, Inc. Intramedullary support with porous metal splines
US10485595B2 (en) 2015-07-13 2019-11-26 IntraFuse, LLC Flexible bone screw
US10154863B2 (en) 2015-07-13 2018-12-18 IntraFuse, LLC Flexible bone screw
US10499960B2 (en) 2015-07-13 2019-12-10 IntraFuse, LLC Method of bone fixation
US10136929B2 (en) 2015-07-13 2018-11-27 IntraFuse, LLC Flexible bone implant
KR101722252B1 (en) * 2016-03-18 2017-04-03 이동훈 Intramedullary nail having an anti-tilting fuction
US10751096B2 (en) 2016-09-22 2020-08-25 Bala Sundararajan Systems and methods for intramedullary nail implantation
US10299847B2 (en) 2016-09-22 2019-05-28 Globus Medical, Inc. Systems and methods for intramedullary nail implantation
US10492803B2 (en) 2016-09-22 2019-12-03 Globus Medical, Inc. Systems and methods for intramedullary nail implantation
US11083503B2 (en) 2016-09-22 2021-08-10 Globus Medical, Inc. Systems and methods for intramedullary nail implantation
US11045242B2 (en) 2016-09-22 2021-06-29 Globus Medical, Inc. Systems and methods for intramedullary nail implantation
WO2019075119A1 (en) 2017-10-11 2019-04-18 Tornier, Inc. Humeral fixation plate guides
US10610270B2 (en) 2018-01-15 2020-04-07 Glw, Inc. Hybrid intramedullary rods
US11633219B2 (en) 2019-06-26 2023-04-25 Globus Medical, Inc. Fenestrated pedicle nail

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Also Published As

Publication number Publication date
MXPA05003270A (en) 2005-10-18
US20060235394A1 (en) 2006-10-19
AU2002328570A1 (en) 2004-04-19
WO2004028383A1 (en) 2004-04-08
CN100484489C (en) 2009-05-06
CN1668252A (en) 2005-09-14
EP1545356B1 (en) 2006-08-23
JP4291776B2 (en) 2009-07-08
DE60214251D1 (en) 2006-10-05
AR041035A1 (en) 2005-04-27
DE60214251T2 (en) 2007-08-30
ATE336954T1 (en) 2006-09-15
JP2006500125A (en) 2006-01-05
EP1545356A1 (en) 2005-06-29
ES2269754T3 (en) 2007-04-01
CL2003001852A1 (en) 2005-01-07
AU2002328570B2 (en) 2006-11-30
CA2500277C (en) 2010-11-23
US8083742B2 (en) 2011-12-27

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20220927

MKEX Expiry

Effective date: 20220927