US20010018588A1 - Reaming tool for reaming bone canals - Google Patents

Reaming tool for reaming bone canals Download PDF

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Publication number
US20010018588A1
US20010018588A1 US09/128,916 US12891698A US2001018588A1 US 20010018588 A1 US20010018588 A1 US 20010018588A1 US 12891698 A US12891698 A US 12891698A US 2001018588 A1 US2001018588 A1 US 2001018588A1
Authority
US
United States
Prior art keywords
reaming
shank
drill head
reaming tool
tool
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
US09/128,916
Other versions
US6416517B2 (en
Inventor
Hans E. Harder
Seyed-Mehdi Mousavi
Vilmos Vecsei
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.)
Stryker European Holdings I LLC
Original Assignee
Stryker Trauma GmbH
Howmedica 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
Priority to DE29713897.9 priority Critical
Priority to DE29713897 priority
Priority to DE29713897U priority patent/DE29713897U1/en
Application filed by Stryker Trauma GmbH, Howmedica Inc filed Critical Stryker Trauma GmbH
Assigned to HOWMEDICA reassignment HOWMEDICA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MOUSAVI, SEYED-MEHDI, HARDER, HANS E., VECSEI, VILMOS
Assigned to HOWMEDICA GMBH reassignment HOWMEDICA GMBH CORRECTIVE ASSIGNMENT TO CORRECT THE EXECUTION FOR CONVEYING PARTY, FILED 03/03/99, RECORDED AT REEL 9791, FRAME 0020 ASSIGNOR HEREBY CONFIRMS THE ASSIGNMENT OF THE ENTIRE INTEREST. Assignors: MOUSAVI, SEYED-MEHDI, VECSEI, VILMOS, HARDER, HANS E.
Assigned to STRYKER TRAUMA GMBH reassignment STRYKER TRAUMA GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HOWMEDICA GMBH
Publication of US20010018588A1 publication Critical patent/US20010018588A1/en
Publication of US6416517B2 publication Critical patent/US6416517B2/en
Application granted granted Critical
Assigned to STRYKER EUROPEAN HOLDINGS VI, LLC reassignment STRYKER EUROPEAN HOLDINGS VI, LLC NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: STRYKER TRAUMA GMBH
Assigned to STRYKER EUROPEAN HOLDINGS I, LLC reassignment STRYKER EUROPEAN HOLDINGS I, LLC NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: STRYKER EUROPEAN HOLDINGS VI, LLC
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/164Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans intramedullary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1631Special drive shafts, e.g. flexible shafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/14Configuration of the cutting part, i.e. the main cutting edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/54Drilling tools having provision for drilling different diameters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9095Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097Spiral channel

Abstract

A reaming tool for reaming bone canals with a drill head which is mounted on an elongate flexible shaft which has a diameter smaller than that of the drill head and which can be connected to a rotary drive motor, wherein the drill head and shank comprise a through-bore for a guiding wire wherein the shaft at least over a part of its length is spiraled in a thread-like manner.

Description

  • The invention relates to a reaming tool for reaming bone canals. [0001]
  • Such reaming tools are applied in tubular bones, for example with the femur for applying hip joint prosthesis or before driving in a bone nail for the femur, tibia, humerus, etc. From EP 0 508 710 there is known a reaming tool which consists of a drill head and an elongate shank which can be connected thereto. The drill head consists of four teeth arranged at a 90° distance with a chamfer which furthermore comprises a central through-bore. The shank which is likewise drilled through has a smaller diameter than the drill head. The central through-bore of the shank and drill head serves for accommodating a guiding wire along which the reaming tool is driven forward. [0002]
  • From EP 0 440 377 there is further known a reaming tool which comprises a modified drill head and a shank which is formed flexibly. With the help of the flexible shank which at the same time represents a flexible shaft the drill head may also be moved along an arcuate path, which is required in many cases. For such a flexible shaft there are various known designs. They must not only be flexible but also be able to transmit a suitable torque. [0003]
  • On application the chips removed away from the bone are conveyed behind the drill head into the intermediate space between the shank and the canal. With longer drillings it is therefore necessary to remove the tool from the canal from time to time in order to remove the chips. In this way the operating time is drastically increased. If the removal of the chips is not effected in time, a blockage of chips may occur with a corresponding blocking up of the drill head by which means an unallowable loading of the bone may occur, in particular by the developing heat. [0004]
  • It is therefore the object of the invention to provide a reaming tool for drilling bone canals with which the removal of chips is significantly improved. [0005]
  • This object is achieved by the device of the invention. [0006]
  • With the reaming tool according to the invention the shank is at least over a part of its length spiraled in the manner of a thread. Preferably the spiraling extends over the whole length of the shank, at least over a length such that the spiraled section is still located outside the bone when the drill head is in its furthest driven in position. [0007]
  • Although the outer diameter of the spiraled shank for obvious reasons is clearly smaller than the outer diameter of the drill head it is possible with such a flexible shank to convey a sufficiently large part of the machined chips to the outside. Under certain circumstances all temporary removal of the drill head from the drilled out canal for the purpose of chip removal is done away with, however at least the number of such procedures is limited to a minimum. [0008]
  • In order to prevent damage to the canal walling one formation of the invention provides for the thread tip to be flattened or rounded. [0009]
  • Although it is conceivable to form the shank of metal, it may be manufactured just as well from plastic. [0010]
  • One embodiment form of the invention is described in more detail by way of the drawings. [0011]
  • FIG. 1 schematically shows a reaming tool according to the invention. [0012]
  • FIG. 2 shows a detail of the reaming tool according to FIG. 1. [0013]
  • In FIG. 1 there is illustrated a reaming tool at [0014] 10. It comprises a drill head 12 which e.g. may be formed according to EP 0 508 710 or according to WO 97/03617. A flexible shank 14 is connected to the drill head 12. The connection is not shown in detail. It may be conventional. Preferably there is provided a releasable connection, so that e.g. a drill head with a changed diameter can be connected to the shank 14. At the free end of the shank 14 there is mounted a cylindrical clamping piece 16 for connecting the shank 14 to the chuck of a rotary tool, in particular a rotary drive machine, for example an electric or pneumatic motor.
  • As can be recognized from the drawing the shank [0015] 14 is spiraled in a helix-shaped manner as is shown at 18. The spiraling carried out in a thread-like or corkscrew-like manner is provided with an adequately deep groove so that in spite of an outer diameter of the shank 14 which is significantly smaller than that of the outer diameter of the drill head 12, chips which are conveyed from the drill head 12 rearwards are transported rearwards by the spiraling of the shank 14 to the clamping piece 1 which lies safely outside the bone.
  • The shank [0016] 14 is of formed of metal or plastic and this being in a manner such that it can transmit the torque which is required for the reaming, but at the same time is flexible in order to function as a type of flexible shaft.
  • As becomes clear from FIG. 2 the tip of the threads is rounded or flattened as is indicated at [0017] 20. In this way on contacting or abutting the walling of the bone canal injuries are avoided.
  • As already previously quoted it is to be understood that the drill head [0018] 12 and the shank 14 comprise a through-bore for guiding through a guide wire which is not shown.

Claims (3)

1. A reaming tool for reaming bone canals with a drill head which is mounted on an elongate flexible shank which has a diameter smaller than that of the drill head and which can be connected to a rotary drive motor, wherein the drill head and shank comprise a through-bore for a guiding wire, and wherein the shank (14) at least over a part of its length is spiraled (18) in a thread-like manner.
2. The reaming tool according to
claim 1
, wherein the thread tip (20) is rounded or flattened.
3. The reaming tool according to
claim 2
, wherein the shank (14) is of plastic or metal.
US09/128,916 1997-08-04 1998-08-04 Reaming tool for reaming bone canals Expired - Lifetime US6416517B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE29713897.9 1997-08-04
DE29713897 1997-08-04
DE29713897U DE29713897U1 (en) 1997-08-04 1997-08-04 Reamer for drilling bone canals

Publications (2)

Publication Number Publication Date
US20010018588A1 true US20010018588A1 (en) 2001-08-30
US6416517B2 US6416517B2 (en) 2002-07-09

Family

ID=8044143

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/128,916 Expired - Lifetime US6416517B2 (en) 1997-08-04 1998-08-04 Reaming tool for reaming bone canals

Country Status (5)

Country Link
US (1) US6416517B2 (en)
EP (1) EP0895754B1 (en)
JP (1) JP2904781B2 (en)
DE (1) DE29713897U1 (en)
ES (1) ES2205324T3 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010099239A3 (en) * 2009-02-24 2011-01-06 Flex Technology, Inc. Flexible screw
US20120109229A1 (en) * 2009-07-10 2012-05-03 Milux Holdind Sa Hip joint instrument and method
US8287538B2 (en) 2008-01-14 2012-10-16 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US20140236156A1 (en) * 2011-09-16 2014-08-21 CHIRMAT Sàrl Surgical tool for reaming the diaphyseal canal of long bones
US8906022B2 (en) 2010-03-08 2014-12-09 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US8961518B2 (en) 2010-01-20 2015-02-24 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US9482260B1 (en) 2009-02-24 2016-11-01 William R Krause Flexible fastening device for industrial use
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10070874B2 (en) 2016-08-18 2018-09-11 Arthrex, Inc. Methods of fixating tissue to bone

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US6783533B2 (en) 2001-11-21 2004-08-31 Sythes Ag Chur Attachable/detachable reaming head for surgical reamer
US20030176868A1 (en) * 2002-02-22 2003-09-18 Pepper John R. Long bone reaming apparatus and method
FI113616B (en) * 2002-04-22 2004-05-31 Inion Ltd Instrument
US20050070907A1 (en) * 2003-09-25 2005-03-31 Abernathie Dennis L. Method and device for drilling and tapping a bore for a bone screw
WO2010123879A1 (en) * 2009-04-20 2010-10-28 Virginia Tech Intellectual Properties, Inc. Intramedullary nail targeting device
US20060015110A1 (en) * 2004-07-15 2006-01-19 Pepper John R Cutting device
US7621916B2 (en) * 2004-11-18 2009-11-24 Depuy Spine, Inc. Cervical bone preparation tool and implant guide systems
US20070093840A1 (en) * 2005-10-06 2007-04-26 Pacelli Nicolas J Flexible shaft
US20070288042A1 (en) * 2006-06-07 2007-12-13 Serbousek Jon C Flexible debridement device
US20080287958A1 (en) * 2007-05-14 2008-11-20 Howmedica Osteonics Corp. Flexible intramedullary rod
ES2544248T3 (en) * 2007-07-31 2015-08-28 Stryker Trauma Gmbh Reaming device with carbon shaft
JP5350474B2 (en) 2008-06-26 2013-11-27 ウェイン・アンダーソンWayne ANDERSON Depth controllable measuring medical driver device and methods of use thereof
US8911474B2 (en) 2009-07-16 2014-12-16 Howmedica Osteonics Corp. Suture anchor implantation instrumentation system
CA2812775C (en) 2009-08-20 2015-09-29 Howmedica Osteonics Corp. Flexible acl instrumentation, kit and method
US8419779B2 (en) * 2009-12-08 2013-04-16 James A. Rinner Systematic displacement bone screw
AT543447T (en) 2010-03-31 2012-02-15 Stryker Trauma Gmbh Weitungsvorrichtung with cfrp economy and molded interface element
WO2011123703A1 (en) 2010-03-31 2011-10-06 Smart Medical Devices, Inc. Depth controllable and measurable medical driver devices
US9707069B2 (en) 2011-02-25 2017-07-18 Avinash Kumar Suture mesh and method of use
US9795398B2 (en) 2011-04-13 2017-10-24 Howmedica Osteonics Corp. Flexible ACL instrumentation, kit and method
US9808242B2 (en) 2012-04-06 2017-11-07 Howmedica Osteonics Corp. Knotless filament anchor for soft tissue repair
US8821494B2 (en) 2012-08-03 2014-09-02 Howmedica Osteonics Corp. Surgical instruments and methods of use
US9078740B2 (en) 2013-01-21 2015-07-14 Howmedica Osteonics Corp. Instrumentation and method for positioning and securing a graft
US9402620B2 (en) 2013-03-04 2016-08-02 Howmedica Osteonics Corp. Knotless filamentary fixation devices, assemblies and systems and methods of assembly and use
US9986992B2 (en) 2014-10-28 2018-06-05 Stryker Corporation Suture anchor and associated methods of use
US10154863B2 (en) 2015-07-13 2018-12-18 IntraFuse, LLC Flexible bone screw
US20170079698A1 (en) 2015-07-13 2017-03-23 IntraFuse, LLC Flexible bone implant
US20180271544A1 (en) * 2017-03-21 2018-09-27 Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America Integrated Suction and Cooling of Angled Burr

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9788870B2 (en) 2008-01-14 2017-10-17 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US8287538B2 (en) 2008-01-14 2012-10-16 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US9517093B2 (en) 2008-01-14 2016-12-13 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US9482260B1 (en) 2009-02-24 2016-11-01 William R Krause Flexible fastening device for industrial use
US20110144703A1 (en) * 2009-02-24 2011-06-16 Krause William R Flexible Screw
WO2010099239A3 (en) * 2009-02-24 2011-01-06 Flex Technology, Inc. Flexible screw
US10136930B2 (en) 2009-02-24 2018-11-27 William R. Krause Flexible fastening device for industrial use
US9241720B2 (en) * 2009-07-10 2016-01-26 Peter Forsell Hip joint instrument and method
US20120109229A1 (en) * 2009-07-10 2012-05-03 Milux Holdind Sa Hip joint instrument and method
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US8961518B2 (en) 2010-01-20 2015-02-24 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US9848889B2 (en) 2010-01-20 2017-12-26 Conventus Orthopaedics, Inc. Apparatus and methods for bone access and cavity preparation
US8906022B2 (en) 2010-03-08 2014-12-09 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US9993277B2 (en) 2010-03-08 2018-06-12 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US20140236156A1 (en) * 2011-09-16 2014-08-21 CHIRMAT Sàrl Surgical tool for reaming the diaphyseal canal of long bones
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10076342B2 (en) 2013-12-12 2018-09-18 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10070874B2 (en) 2016-08-18 2018-09-11 Arthrex, Inc. Methods of fixating tissue to bone

Also Published As

Publication number Publication date
ES2205324T3 (en) 2004-05-01
EP0895754A3 (en) 1999-04-28
JP2904781B2 (en) 1999-06-14
EP0895754B1 (en) 2003-08-27
US6416517B2 (en) 2002-07-09
JPH1189849A (en) 1999-04-06
EP0895754A2 (en) 1999-02-10
DE29713897U1 (en) 1998-12-03

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