CA2551021A1 - Intramedullary nail - Google Patents

Intramedullary nail Download PDF

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Publication number
CA2551021A1
CA2551021A1 CA002551021A CA2551021A CA2551021A1 CA 2551021 A1 CA2551021 A1 CA 2551021A1 CA 002551021 A CA002551021 A CA 002551021A CA 2551021 A CA2551021 A CA 2551021A CA 2551021 A1 CA2551021 A1 CA 2551021A1
Authority
CA
Canada
Prior art keywords
intramedullary nail
slot
diameter
defined diameter
longitudinal slot
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
CA002551021A
Other languages
French (fr)
Other versions
CA2551021C (en
Inventor
Robert Frigg
Marcel Fuhrer
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 CA2551021A1 publication Critical patent/CA2551021A1/en
Application granted granted Critical
Publication of CA2551021C publication Critical patent/CA2551021C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping 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

Landscapes

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

Abstract

Disclosed is an intramedullary nail (1) comprising a longitudinal axis (2), a proximal end (3), a distal end (4), at least one bore (10, 11) that extends perpendicular to the longitudinal axis (2), lies on a plane (20), and has a defined diameter (d10, d11) for accommodating a locking element (12, 13), an d a longitudinal slot (9) that runs parallel to the longitudinal axis (2) on said plane (20). The longitudinal slot (9) is provided with a width b which is measured perpendicular to the plane (20) in the area outside the bores (10, 11) in the non-expanded state of the intramedullary nail and corresponds to a maximum of .6 times the smallest defined diameter (d10) of the bores (10, 11 ).

Claims (17)

1. An intramedullary nail (1) with a longitudinal axis (2), a proximal end (3), a distal end (4), at least one hole (10, 11) that extends transversely to the longitudinal axis (2) and situated in a plane (20), having a defined diameter (d10, d11) to accommodate a locking element (12, 13), as well as a longitudinal slot (9) extending in the plane (20) parallel to the longitudinal axis (2), characterised in that in the unexpended state of the intramedullary nail (1) the longitudinal slot (9) has a width b, measured perpendicularly to the plane (20) in the region outside of the holes (10, 11), said width b being maximum 0.6 times that of the smallest defined diameter (d10) of the holes (10, 11).
2. An intramedullary nail (1) according to claim 1, characterised in that the width b of the slot is maximum 0.5 times, preferably maximum 0.4 times that of the smallest defined diameter (d10) of the holes (10, 11).
3. An intramedullary nail (1) according to claim 1 or 2, characterised in that the number of holes (10, 11) is two, while the diameter d10 of the hole closer to the opening of the longitudinal slot (9) is smaller than diameter d11 of the other hole (11).
4. An intramedullary nail (1) according to any one of claims 1 to 3, characterised in that the longitudinal slot (6) has a length of L, that is at least 10 times, preferably 15 times that of the smallest defined diameter (d10) of the holes (10, 11).
5. An intramedullary nail (1) according to any one of claims 1 to 4, characterised in that the width b of the slot is essentially constant over the entire length L of the slot.
6. An intramedullary nail (1) according to any one of claims 1 to 5, characterised in that the slot (9) has a protection (23, 24) that limits the expansion of the slot (9) within reason.
7. An intramedullary nail (1) according to any one of claims 1 to 6, characterised in that the longitudinal slot (9) commences at the proximal end (3) of the intramedullary nail (1).
8. An intramedullary nail (1) according to any one of claims 1 to 7, characterised in that the longitudinal slot (9) terminates neither at the distal end (4) nor at the proximal end (3).
9. An intramedullary nail (1) according to any one of claims 1 to 8, characterised in that it has a hollow construction in the direction of the longitudinal axis (2).
10. An intramedullary nail (1) according to any one of claims 1 to 9, characterised in that it has at least one locking element (12, 13, 14) with a defined diameter (D10, D11).
11. An intramedullary nail (1) according to claim 10, characterised in that the defined diameter (D10, D11) of the locking element (12, 13) is larger than the defined diameter (d10, d11) of the associated hole (10, 11).
12. An intramedullary nail (1) according to claim 10, characterised in that the defined diameter (D10, D11) of the locking element (12, 13) is the same as the defined diameter (d10, d11) of the associated hole (10, 11).
13. An intramedullary nail (1) according to claim 10, characterised in that the defined diameter (D10, D11) of the locking element (12, 13) is at least 1.1 times, preferably 1.2 times that of the defined diameter (d10, d11) of the associated hole (10, 11).
14. An intramedullary nail (1) according to any one of claims 10 to 13, characterised in that the diameter of the locking element (13), introduced closer to the opening of the longitudinal slot (9) is larger than the diameter of the other locking elements (12).
15. An intramedullary nail (1) according to any one of claims 10 to 14, characterised in that the locking element (12, 13) is introduced into the hole (10) and the intramedullary nail (1) is elastically expanded in the region of the longitudinal slot (9).
16. An intramedullary nail (1) according to any one of claims 1 to 15, characterised in that the length L of the longitudinal slot (9) is so chosen, that during the insertion of the locking elements (12, 13) the intramedullary nail (1) deforms only in the elastic range.
17. An intramedullary nail (1) according to any one of claims 1 to 16, characterised in that it has an additional locking hole (15), extending at right angle to the plane (7).
CA2551021A 2003-08-29 2003-08-29 Intramedullary nail Expired - Fee Related CA2551021C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000591 WO2005020830A1 (en) 2003-08-29 2003-08-29 Intramedullary nail

Publications (2)

Publication Number Publication Date
CA2551021A1 true CA2551021A1 (en) 2005-03-10
CA2551021C CA2551021C (en) 2012-03-27

Family

ID=34230814

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2551021A Expired - Fee Related CA2551021C (en) 2003-08-29 2003-08-29 Intramedullary nail

Country Status (16)

Country Link
US (2) US8221419B2 (en)
EP (1) EP1658013B1 (en)
JP (1) JP4695511B2 (en)
KR (1) KR101004561B1 (en)
CN (1) CN100479775C (en)
AR (1) AR045737A1 (en)
AT (1) ATE418924T1 (en)
AU (1) AU2003254693B2 (en)
BR (1) BR0318444B1 (en)
CA (1) CA2551021C (en)
DE (1) DE50311032D1 (en)
ES (1) ES2319185T3 (en)
NZ (1) NZ545342A (en)
PL (1) PL380266A1 (en)
TW (1) TWI333415B (en)
WO (1) WO2005020830A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9839453B2 (en) 2007-03-20 2017-12-12 Stryker European Holdings I, Llc Osteosynthesis device
US10022167B2 (en) 2005-04-14 2018-07-17 Stryker European Holdings I, Llc Method of osteosyntheses or arthrodesis of two-bone parts, in particular of the hand and / or foot
US10383671B2 (en) 2008-09-09 2019-08-20 Stryker European Holdings I, Llc Resorptive intramedullary implant between two bones or two bone fragments
US10470807B2 (en) 2016-06-03 2019-11-12 Stryker European Holdings I, Llc Intramedullary implant and method of use

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Cited By (8)

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US10022167B2 (en) 2005-04-14 2018-07-17 Stryker European Holdings I, Llc Method of osteosyntheses or arthrodesis of two-bone parts, in particular of the hand and / or foot
US11006984B2 (en) 2005-04-14 2021-05-18 Stryker European Operations Holdings Llc Device for osteosyntheses or arthrodesis of two-bone parts, in particular of the hand and / or foot
US11478285B2 (en) 2005-04-14 2022-10-25 Stryker European Operations Holdings Llc Device for osteosyntheses or arthrodesis of two-bone parts, in particular of the hand and/or foot
US9839453B2 (en) 2007-03-20 2017-12-12 Stryker European Holdings I, Llc Osteosynthesis device
US10912594B2 (en) 2007-03-20 2021-02-09 Stryker European Holdings I, Llc Osteosynthesis device
US10383671B2 (en) 2008-09-09 2019-08-20 Stryker European Holdings I, Llc Resorptive intramedullary implant between two bones or two bone fragments
US10470807B2 (en) 2016-06-03 2019-11-12 Stryker European Holdings I, Llc Intramedullary implant and method of use
US11272966B2 (en) 2016-06-03 2022-03-15 Stryker European Operations Holdings Llc Intramedullary implant and method of use

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EP1658013A1 (en) 2006-05-24
TW200509853A (en) 2005-03-16
PL380266A1 (en) 2007-01-08
CN1826086A (en) 2006-08-30
AR045737A1 (en) 2005-11-09
KR20070004513A (en) 2007-01-09
JP4695511B2 (en) 2011-06-08
US8221419B2 (en) 2012-07-17
ES2319185T3 (en) 2009-05-05
TWI333415B (en) 2010-11-21
KR101004561B1 (en) 2011-01-03
US9814500B2 (en) 2017-11-14
US20120289961A1 (en) 2012-11-15
BR0318444B1 (en) 2014-10-29
JP2007506451A (en) 2007-03-22
CN100479775C (en) 2009-04-22
NZ545342A (en) 2008-11-28
CA2551021C (en) 2012-03-27
EP1658013B1 (en) 2008-12-31
BR0318444A (en) 2006-08-01
AU2003254693A1 (en) 2005-03-16
ATE418924T1 (en) 2009-01-15
WO2005020830A1 (en) 2005-03-10
AU2003254693B2 (en) 2009-01-08
US20060235395A1 (en) 2006-10-19
DE50311032D1 (en) 2009-02-12

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