CA2004161A1 - Intramedullar nail - Google Patents

Intramedullar nail

Info

Publication number
CA2004161A1
CA2004161A1 CA002004161A CA2004161A CA2004161A1 CA 2004161 A1 CA2004161 A1 CA 2004161A1 CA 002004161 A CA002004161 A CA 002004161A CA 2004161 A CA2004161 A CA 2004161A CA 2004161 A1 CA2004161 A1 CA 2004161A1
Authority
CA
Canada
Prior art keywords
nail
intramedullar
absorbable material
absorbable
intramedullar nail
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.)
Abandoned
Application number
CA002004161A
Other languages
French (fr)
Inventor
Curt Kranz
Hanns Seiler
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.)
Johnson and Johnson
Original Assignee
Johnson and Johnson
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 Johnson and Johnson filed Critical Johnson and Johnson
Publication of CA2004161A1 publication Critical patent/CA2004161A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices

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)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Abstract Intramedullary nail Intramedullary nail, which is fixable by means of fixation screws, for operative treatment of fractures of long tubular bones, whereby the section of tje nail tip consists of an absorbable material.

Description

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BACKGROUNI~I OF T~E INVENTION . -- -~he present invention relates to an lntramedullary nail whl~h is ~ixable by means of locking screws for the ~ ~
operative treatment of fractures o~ lon~ tubular bones and ~i`.~ .
a device to carry out the method.

The intramedullary nail first introduce.d ~y K~ntscher in 19~0 is today one of the most widely used me~ho~s for the operative treat~ent of fractures of long tubular bones.
Some of the advantages o~er other methods are: stable fixation of the frac~ure ends due to the internal bone ;
splint; no operative opening of the fractured area, small rls~ of in~ection, sho~t lle-down period, the patient can ~ -:
get up earlier without a plaster cast and a post-treatment ls not necessary as ~Muskelatrophin - m~scular atrophy) does not occur due to the patients f~eedom of moYement.
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The locking of the lntramedullary nail is neccessary for ~;~
all ~diaphysen) fractures as these remai~ unst~ble after normal intramedullar nailing, In the case of ; -~
(pseudarthrosis) ~he proximal and the distal fragments are loc~ed after the fractu~e has been located.
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The problem ~ith the locking screw is that it is difficult to find the bore holes fcr the lockin~ screws in the intramedullary nail as ~he n~il can bend whilst it is being inserted 1nto the bone. An x-ray manipulator has to be used to reloca~e the bore holes in such cases. ;~

SUMM~RY OY ~HE I~VENTION

It is an ob~ect of th~ invention to.el~inate, to a great . .
extent, the disadvant~ge described above and ~o p~o~ide devices which make it easier to lock the intramedullary . ~ ~.
lo nail. Another ob~ ect o~ the lnve~tion is to mlnimise the -~:
a~ount of x-xay radiation the patient recelves, in the interest of the patient, by no longer regui~ing the x-ray:~
manipulator.

The above and other objects are accomplished accoxding to the invention by an int~amedullary nail which i9 in part made of a ~aterial which ls totally absorb~ble by the . .
body, Thls means that one does not, any longer, h~e to prebore that part of the intr~medullary nail wh~ch is absorbable. The holes are bored for the lockln~ screws : ~:
after the intramedullary n~il has been inserted into the bone. The shavings that are produced are not harmful as : ;
they can be transformed into bodily substance. As khere is no longer any need to locate the bore holes neither the x-ray manipulator or the sighting device have to be used.

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Certain fractures of the ~emur and the ti~ia require that the intramedullary nail is locked in the upper part which does not consist of absorba~le material. The loc~ln~ is not 3roblematic since the posi~ion of the prebored holes can be easily ascertained from the posi~ion o~ the intramedullar nail. .~ . :

An advantageous em~odiment of th~ invention is when ~t least one of the locking screws is ltself made of absorbable material. The locking screws used LO lock the nail tip, which consists of a~ absorbable material, should preferably also be o~ absorba~le materlal, as ln this case `
post-operative surgery does not ha~e to carried out to .
remov2 the loc~in~ screw. ~n absorbable materlal which can be used is, for example, the tried and tested polyactid.
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The firm joining together of the two parts of the i~tramedullar nail is, in a preferred embod~ment o~ the inve~tlon, ~arried out using a non-rust$ng cover which is pushed cver the ends to ~e ~olned and the~ clamped. It is app~opriate to make the len~th of absorbable materlal of the ~ntramadullar nail as long as the i~tended locking length. In this way a high stability a~d durability can be ~uaranteed up until the fracture has fully healed. ;
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The total length of the intramedullar nail is not to be viewed critioally since the absorbable part of the nail can be lon~er than ac~ually requir&d as this does not lead to any co~plica~ions. The metallic part of the : :
intramedullar na~l on the other hand, should be kept as short as possible. After the fracture has healed only the metallic parts of the implant are removed. The absor~able part has, in the meantime, sh~nX to such an extent due to the transformation into bodily substance that the ~ :
~echanical joinin~ devioe, for example a eover, ca~ no ~
longer hold the nail and therefore only ~he metallic parts ~:~
o~ the intramedullar nail have to be removed.

As a wire carrier is used-to insert the intramedullar nail ~ .
lnto the bone the nail is bored concentrlcally throughout its whole length.

BRIEE' DESC~IPTION O~ THE D~AWINGS

Figure 1 is ~ sectional view of a preferred embodi~ent of an intramedullar nail with a partlally lndica~ed distal ~racture.

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DES~RIPTION 0~ T ~ ~ :
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The concent~ically bored intramedullar nail ~ is in~erted into the bon~ marrow using a medullary eanal reamer and a ~ire carrier ~ lndicated ~i~h dashed lines). The wire ::
carrier is then removed from the bone. The intramedullar nail 1 has a bore 3 on its upper side 2 into which a fixation screw is inserted after locatio~ usln~ a si~hting device. The nai~ tip 4`consisting of absorbable material .~
is only bored open at thé areas 5 and ~ after the ~-.
intramedullar nail has been inserted into the ~one. The shavings that are produ~ed during boring are unprcblema~ic and do not need to be removed as ~hey are also of `;`.:~`
- absorbable material. -; :~
~ . . .
~ne screwing in of the absorbable fixation screws 7 and 8 can ~ow begin without having to measure out and set the screwin~ position as these are not prebored holes ~hich hav~ to be located by means of ~adiation. .:

The nail head 2 and the nail tip 4 are joined tightly toge~her by a thin-wa~led cover 9. This cover 9 ~s pushed over the two parts of the ~ntramedullary nail to be ~oined and then moulded. In the prefe~red embodiment the absorbable p~rts of the intramedulla~ nall and the ~ixation screws 7 and 8 are o~ polyactld and the cover is of titan or a titanic alloy. ..
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The two parts or the in~ramedullar nail are connected together just above the area with the fixation screw~ 7.
and 8. Stability is thereby guaranteed until the bone parts have grown back together. After complet~ healing all the parts of the implan~ate are removed, apart from the absoEbable nail tip and the absor~abl~ fixation ~crews 7 ~:
a~d 8 which have dissolved for the most pa~t ~lready. : -I~ will be understood that the above des~iption of the present inventionis susceptible to various modi~ications, changes and adaptations, and the same are intended to be . . .
comprehended within the meanin~ and range of e~ivalents ~:
of the appended claims.

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Claims (7)

1. An intramedullar nail which is fixable by means of fixation crews, for opertive treatment of fractures of ions tubular bones, whreby the section of the nail tip consists of an absorbable material.
2. An intramedullar nail as defined in claim 1, wherein at least one or said fixation screws consist of an absorbable material.
3. An intramedullar nail as defined in claim 1, wherein said absorbable material is polyacid.
4. An intramedullar nail as defined in claim 1, wherein a cover connects the nail tip consisting of absorbable material firmly with the metallic nail head.
5. An intramedullar nail as defined in claim 9, wherein said cover consists of titan or a titan alloy.
6. An intramedullar nail as defined in claim 1, wherein the absorbable area of said nail tip ends directly above the area is which said fixation screws are inserted.
7. An intramedullar nail as defined in claim 1, wherein said nail has a concentric bore which extends throughout its whole length.
CA002004161A 1988-12-01 1989-11-29 Intramedullar nail Abandoned CA2004161A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3840798.1 1988-12-01
DE3840798A DE3840798A1 (en) 1988-12-01 1988-12-01 MARKING NAIL

Publications (1)

Publication Number Publication Date
CA2004161A1 true CA2004161A1 (en) 1990-06-01

Family

ID=6368411

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002004161A Abandoned CA2004161A1 (en) 1988-12-01 1989-11-29 Intramedullar nail

Country Status (7)

Country Link
US (1) US5057110A (en)
EP (1) EP0371910B1 (en)
JP (1) JPH03114458A (en)
AT (1) ATE121610T1 (en)
CA (1) CA2004161A1 (en)
DE (2) DE3840798A1 (en)
ES (1) ES2071679T3 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140874A1 (en) * 1991-12-11 1993-06-24 Hofmann Joseph Pins for repairing fracture in long bone - are made in part or in whole of plastics which is absorbed into surrounding tissue
US5429640A (en) * 1992-11-27 1995-07-04 Clemson University Intramedullary rod for fracture fixation of femoral shaft independent of ipsilateral femoral neck fracture fixation
US5352228A (en) * 1993-05-10 1994-10-04 Kummer Frederick J Apparatus and method to provide compression for a locked intramedullary nail
IT1261494B (en) * 1993-07-30 1996-05-23 Gideon Raphael Tock ENDOMIDOLLAR NAIL AND CROSS-LINKED OSTEOSYNTHESIS, MODULAR FOR APPLICATION IN ORTHOPEDICS WITHOUT EXPOSURE TO IONIZING RAYS.
US5549609A (en) * 1993-09-07 1996-08-27 Hospital For Joint Diseases Bone fixation for fractures of the upper ulna
JP3441513B2 (en) * 1994-05-20 2003-09-02 ペンタックス株式会社 Mounting jig for intramedullary nail
US6053918A (en) * 1994-10-25 2000-04-25 General Orthopedics Apparatus and method for fastening an intramedullary nail to a bone
US5935127A (en) * 1997-12-17 1999-08-10 Biomet, Inc. Apparatus and method for treatment of a fracture in a long bone
US6296645B1 (en) * 1999-04-09 2001-10-02 Depuy Orthopaedics, Inc. Intramedullary nail with non-metal spacers
US6783529B2 (en) 1999-04-09 2004-08-31 Depuy Orthopaedics, Inc. Non-metal inserts for bone support assembly
US6187008B1 (en) 1999-07-07 2001-02-13 Bristol-Myers Squibb Device for temporarily fixing bones
US20040153073A1 (en) 2000-02-01 2004-08-05 Hand Innovations, Inc. Orthopedic fixation system including plate element with threaded holes having divergent axes
US7695502B2 (en) 2000-02-01 2010-04-13 Depuy Products, Inc. Bone stabilization system including plate having fixed-angle holes together with unidirectional locking screws and surgeon-directed locking screws
US6767351B2 (en) 2000-02-01 2004-07-27 Hand Innovations, Inc. Fixation system with multidirectional stabilization pegs
US7857838B2 (en) 2003-03-27 2010-12-28 Depuy Products, Inc. Anatomical distal radius fracture fixation plate
US6706046B2 (en) 2000-02-01 2004-03-16 Hand Innovations, Inc. Intramedullary fixation device for metaphyseal long bone fractures and methods of using the same
US6808527B2 (en) 2000-04-10 2004-10-26 Depuy Orthopaedics, Inc. Intramedullary nail with snap-in window insert
US20050038435A1 (en) 2000-08-22 2005-02-17 J. Dean Cole Intramerdullary canal diameter reducer background of the invention
US6527775B1 (en) 2000-09-22 2003-03-04 Piper Medical, Inc. Intramedullary interlocking fixation device for the distal radius
US6916321B2 (en) * 2001-09-28 2005-07-12 Ethicon, Inc. Self-tapping resorbable two-piece bone screw
US20030125749A1 (en) * 2001-12-27 2003-07-03 Ethicon, Inc. Cannulated screw and associated driver system
US6921402B2 (en) * 2001-12-27 2005-07-26 Ethicon, Inc. Polymer-based orthopedic screw and driver system with increased insertion torque tolerance and associated method for making and using same
US7780664B2 (en) * 2002-12-10 2010-08-24 Depuy Products, Inc. Endosteal nail
US7169149B1 (en) 2003-07-24 2007-01-30 Phoenix Orthopaedic Corporation Device for external fixation of a proximal fracture of the ulna with a clamped medullar pin and multiple clamped pins holding bone fragments
AU2004294998B2 (en) 2003-12-01 2011-03-24 Smith & Nephew, Inc. Humeral nail with insert for fixing a screw
US7588577B2 (en) 2004-07-15 2009-09-15 Wright Medical Technology, Inc. Guide assembly for intramedullary fixation and method of using the same
US20060015101A1 (en) 2004-07-15 2006-01-19 Wright Medical Technology, Inc. Intramedullary fixation assembly and devices and methods for installing the same
US7410488B2 (en) 2005-02-18 2008-08-12 Smith & Nephew, Inc. Hindfoot nail
US9452001B2 (en) * 2005-02-22 2016-09-27 Tecres S.P.A. Disposable device for treatment of infections of human limbs
DE102005023069B4 (en) * 2005-05-19 2009-07-09 Pieske, Oliver, Dr.med. Implant for tensile strength joining two parts of a substantially smoothly broken tubular bone
US7905909B2 (en) 2005-09-19 2011-03-15 Depuy Products, Inc. Bone stabilization system including multi-directional threaded fixation element
GB2442706A (en) * 2006-10-09 2008-04-16 Mohamed Khalid An intramedullary rod for the fixation of bone fractures
AU2008256740A1 (en) * 2007-05-25 2008-12-04 Zimmer, Gmbh Reinforced intramedullary nail
US8206389B2 (en) * 2007-08-31 2012-06-26 Huebner Randall J Rod-based system for bone fixation
US8771283B2 (en) 2007-12-17 2014-07-08 Wright Medical Technology, Inc. Guide assembly for intramedullary fixation and method of using the same
US8152807B2 (en) 2008-03-31 2012-04-10 Olecranail Llc Intramedullary device assembly and associated method
DE102008037196A1 (en) * 2008-08-11 2010-02-18 Matveev, Anatoly L. Absorbable, reinforced intramedullary shaft for osteosynthesis of long hollow bone, comprises hollow shaft filled with filling material, where intramedullary shaft is attached in bone marrow canal on fractures of long hollow bone
US8668695B2 (en) * 2008-10-15 2014-03-11 Zimmer Gmbh Intramedullary nail
US8216237B2 (en) * 2009-06-04 2012-07-10 Edwards Scott G Intramedullary device assembly and associated method
WO2011072249A1 (en) 2009-12-11 2011-06-16 Small Bone Innovations, Inc. Ankle fusion device, instrumentation and methods
EP3470001B1 (en) 2017-10-10 2021-04-21 AIT Austrian Institute of Technology GmbH Implant for tension-resistant connection of at least two parts of a broken tubular bone
CA3078249A1 (en) 2017-10-11 2019-04-18 Tornier, Inc. Humeral fixation plate guides
EP3740145A1 (en) 2018-01-15 2020-11-25 GLW, Inc. Hybrid intramedullary rods
RU2691326C1 (en) * 2018-07-12 2019-06-11 Олег Васильевич Сажников Absorbable intramedullary nail for fixing fractures of long tubular bones
AT524172A1 (en) * 2020-09-07 2022-03-15 V I E Systems Gmbh Implant for fixation of a first bone part and a second bone part of a fractured bone

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EP0071242B1 (en) * 1981-07-30 1986-12-03 CERAVER Société anonyme dite: Prosthetic stem composed of titanium or its alloys for the cementless fixation in a long bone
FI69402C (en) * 1983-09-20 1986-02-10 Materials Consultants Oy OSTEOSYNTESANORDNING
DD235026A1 (en) * 1985-03-04 1986-04-23 Bezirkskrankenhaus Karl Marx S SLIDING SLAG FOR LOCKING BONE BRIDGES
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Also Published As

Publication number Publication date
EP0371910B1 (en) 1995-04-26
DE3840798A1 (en) 1990-06-21
ATE121610T1 (en) 1995-05-15
JPH03114458A (en) 1991-05-15
EP0371910A1 (en) 1990-06-06
US5057110A (en) 1991-10-15
ES2071679T3 (en) 1995-07-01
DE58909199D1 (en) 1995-06-01

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Legal Events

Date Code Title Description
FZDE Discontinued