WO2005027763A1 - Planetenrollensystem, insbesondere für eine vorrichtung zum verlängern von knochen - Google Patents
Planetenrollensystem, insbesondere für eine vorrichtung zum verlängern von knochen Download PDFInfo
- Publication number
- WO2005027763A1 WO2005027763A1 PCT/EP2004/008195 EP2004008195W WO2005027763A1 WO 2005027763 A1 WO2005027763 A1 WO 2005027763A1 EP 2004008195 W EP2004008195 W EP 2004008195W WO 2005027763 A1 WO2005027763 A1 WO 2005027763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- planetary roller
- roller system
- housing
- recesses
- planetary
- Prior art date
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
- A61B17/7216—Intramedullary pins, nails or other devices for bone lengthening or compression
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
Definitions
- Planetary roller system in particular for a device for lengthening bones
- the present invention relates to a planetary roller system, in particular for a device for lengthening bones with two elements which can be moved relative to one another and which are connected to one another via at least one * drive element.
- Such devices are known and used in a variety of forms and designs on the market. They also serve in particular as a drive device for devices for extending any bones. These can be inserted into a bone cavity or into a medullary cavity of a bone, and a distraction can take place after a bone has been severed.
- BESTATIGUNGSKOPIE It is disadvantageous that conventional planetary roller systems for distraction devices cannot absorb or generate very high forces and that miniature versions cannot be produced precisely and precisely. In addition, they must be easy to take apart for cleaning, and assembly, particularly when used in medical instruments, must also be carried out very quickly and easily.
- planetary roller systems are used as drive systems, which must have a very small diameter in cross section.
- Conventional planetary roller systems are not suitable as drive elements or drive units for very high forces during distraction or when moving one element relative to the other element.
- the present invention has for its object to provide a planetary roller system, in particular for a device for lengthening bone, which eliminates the disadvantages mentioned and with which simple assembly and disassembly is possible in a simple and inexpensive and precise manner, very high forces are transmitted can, with very small diameter of the planetary roller system to be realized.
- a housing for receiving at least one planetary roller has at least one radial recess.
- a housing for accommodating the individual planet rollers is formed, which preferably has three radial recesses spaced apart from one another.
- the recesses are provided in a lateral surface of a housing, the ends of the respective recesses
- Corresponding receiving pockets for receiving shaft ends are formed by planet rollers for appropriate storage.
- three recesses arranged at an angle of approximately 120 ° to one another are provided in the lateral surface of the housing.
- two opposite or more recesses can be provided in the housing for receiving planetary rollers.
- four radial recesses are provided in the outer surface of the housing for receiving the planet rollers.
- the housing ensures that the individual planetary rollers are optimally supported within the recesses and • within the receiving pockets, and therefore, an easy assembly is possible by means of the housing in the present invention.
- very high forces can be transmitted with the housing in such a planetary roller system.
- the overall diameter of the planetary roller system can be made very small.
- the corresponding webs are formed at an obtuse angle and thereby enlarge the recesses, in particular in the inner region, so that the corresponding planetary rollers with a larger diameter can be used.
- This also serves the optimal higher power transmission while reducing the total cross-sectional diameter of the planetary roller system.
- FIG. 1 shows a schematically illustrated partial longitudinal section through the first element in the end region of a device for lengthening bones with a planetary roller system
- Figure 2 is a schematic plan view of an essential part of the planetary roller system
- FIG. 3 shows a schematically illustrated cross section through a housing of the planetary roller system along line III-III according to FIG. 2,
- Figure 4 is a schematically illustrated cross section through the housing of the planetary roller system with indicated planetary rollers and sun gear and ring gear.
- a device R according to the invention has a first element 1 and a second element 2 guided linearly and axially therein.
- An energy and / or data transmission element 3 is integrated in the first element 1, in particular in the end area, which supplies the corresponding energy and ensures energy transmission and data exchange in a bidirectional, contactless manner.
- the end region 19 of the element 1 at least two radial locking bores 4 are also provided, which serve to fix the device R, for example in a bone to be lengthened. At the same time guaranteed radial rotation of the element 1 against the bone when setting.
- the element 1 is preferably designed as a receiving sleeve 5, which has an electronic unit 6, only indicated here, which is connected to the energy and / or data transmission element 3 and also to a drive element 7.
- the drive element 7 comprises an electric motor 8, which rotates a drive shaft 10 via bearings 9, which are only indicated here.
- a planetary roller system 11 Connected at the end to the drive shaft 10 is a planetary roller system 11, in which a plurality of planetary rollers 24, indicated in FIG. 4, drive the individual planetary rollers 24 in rotation via the drive shaft 10, preferably designed as a sun gear 25.
- the planetary rollers 24 are inserted into corresponding recesses 12, which are described in more detail in FIGS. 2, 3 and 4.
- a force sensor 13 for determining the axial forces of the shaft and also the torques is preferably connected to the electric motor 8, which in turn is connected to the electronics unit 6.
- the latter has a guide region 15 inside, which is preferably cylindrical.
- a guide element 16 is placed on the element 1, which has an inner cross section 17, which corresponds approximately to an outer cross section 18 of the second element 2.
- the inner cross section and the outer cross section are preferably of polygonal cross section. In this way it is prevented that the element 2, which is guided in the guide region 15 of the element 1, can rotate radially. Although it can move back and forth axially along a central axis M, it cannot rotate radially.
- the element 2 is preferably almost completely formed as a polygonal profile with regard to its outer cross section.
- this can have a cross-sectionally different outer contour 20, which corresponds approximately to the guide region 15 of the first element 1.
- the inside of the element 2, which is preferably designed as a ring gear 26, see FIG. 4, is preferably designed as a rotating thread which interacts with the planetary roller system 11, in particular with the planetary rollers 24.
- the element 2 By correspondingly driving the drive shaft 10 or the sun gear 25, the element 2 can be moved out or out of the element 1 along a central axis M indicated in FIG. 1 in the double arrow direction X shown.
- the element 2 can be axially moved out of the element 1 until the end region 19 of the element 2 strikes the inside of the guide element 16. In this way, a very large stroke of element 2 relative to element 1 can be ensured.
- the large stroke can also be achieved by the element 2 being able to be moved axially with absolute precision under element 1 relative to element 1 via the planetary roller system 11, element 2 being radially non-rotatable with respect to element 1 is guided over the guide element 16.
- the element 2 is not guided within the element 1, but rather overlaps it, for example, as an outer sleeve or receives the element 1 therein and guides it against rotation.
- the planet gear carrier 12 can lie outside the end region 14 of the element 1 and a corresponding internal thread 21 of the element 2 can mesh.
- the end region 19 of the element 2 is of round cross-section, polygon-like, polygonal or otherwise, in order to ensure axial and radial guidance relative to the element 1, wherein there is not necessarily a rotation lock here must, since the radial anti-rotation can also take place via the guide element 16 between elements 1 and 2.
- a receiving space 23 for accommodating sensors, force sensors, displacement sensors or the like can be provided within the guide area 15.
- a housing 27 is shown, which is approximately cylindrical and has a plurality of radial recesses 12 in a lateral surface 28.
- individual web elements 29 are formed from the lateral surface, which include an obtuse angle ⁇ , a web tip 30 being aligned with the central axis M.
- the respective web tips 30 and the web element 29 each form an angle ⁇ of approximately 120 ° to one another.
- a recess 12 is formed in each case between the respective webs 29, the individual recesses 12 having receiving pockets 31 in end regions in the lateral surface 28 of the housing 27, as is indicated in particular in FIG. 2.
- Inner walls 32 of the receiving pockets 31 can be aligned parallel to one another, or, as indicated in particular in FIG. In this way, the planetary roller 24 can be stored within the receiving pockets 31.
- the respective recesses 12 or the receiving pockets 31 are arranged or spaced apart at an angle ⁇ , preferably by approximately 120 ° to the central axis M.
- ⁇ preferably by approximately 120 ° to the central axis M.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04763399A EP1677692A1 (de) | 2003-08-28 | 2004-07-22 | Planetenrollensystem, insbesondere fuer eine vorrichtung zum verlaengern von knochen |
US10/569,665 US7666184B2 (en) | 2003-08-28 | 2004-07-22 | Planetary roll system, in particular for a device for extending bones |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340025.7 | 2003-08-28 | ||
DE10340025A DE10340025A1 (de) | 2003-08-28 | 2003-08-28 | Vorrichtung zum Verlängern von Knochen oder Knochenteilen |
DE202004007242.4 | 2004-05-04 | ||
DE202004007242U DE202004007242U1 (de) | 2003-08-28 | 2004-05-04 | Planetenrollensystem, insbesondere für eine Vorrichtung zum Verlängern von Knochen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005027763A1 true WO2005027763A1 (de) | 2005-03-31 |
Family
ID=34379061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/008195 WO2005027763A1 (de) | 2003-08-28 | 2004-07-22 | Planetenrollensystem, insbesondere für eine vorrichtung zum verlängern von knochen |
Country Status (3)
Country | Link |
---|---|
US (1) | US7666184B2 (de) |
EP (1) | EP1677692A1 (de) |
WO (1) | WO2005027763A1 (de) |
Families Citing this family (46)
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DE10340025A1 (de) * | 2003-08-28 | 2005-03-24 | Wittenstein Ag | Vorrichtung zum Verlängern von Knochen oder Knochenteilen |
US7955357B2 (en) | 2004-07-02 | 2011-06-07 | Ellipse Technologies, Inc. | Expandable rod system to treat scoliosis and method of using the same |
US7862502B2 (en) | 2006-10-20 | 2011-01-04 | Ellipse Technologies, Inc. | Method and apparatus for adjusting a gastrointestinal restriction device |
US20090192514A1 (en) * | 2007-10-09 | 2009-07-30 | Feinberg Stephen E | Implantable distraction osteogenesis device and methods of using same |
US8057472B2 (en) | 2007-10-30 | 2011-11-15 | Ellipse Technologies, Inc. | Skeletal manipulation method |
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US11202707B2 (en) | 2008-03-25 | 2021-12-21 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant system |
US11241257B2 (en) | 2008-10-13 | 2022-02-08 | Nuvasive Specialized Orthopedics, Inc. | Spinal distraction system |
US8382756B2 (en) | 2008-11-10 | 2013-02-26 | Ellipse Technologies, Inc. | External adjustment device for distraction device |
US8197490B2 (en) | 2009-02-23 | 2012-06-12 | Ellipse Technologies, Inc. | Non-invasive adjustable distraction system |
US9622792B2 (en) | 2009-04-29 | 2017-04-18 | Nuvasive Specialized Orthopedics, Inc. | Interspinous process device and method |
RU2016101629A (ru) | 2009-09-04 | 2018-12-04 | Нувэйсив Спешилайзд Ортопэдикс, Инк. | Устройство и способ для наращивания кости |
US8777947B2 (en) * | 2010-03-19 | 2014-07-15 | Smith & Nephew, Inc. | Telescoping IM nail and actuating mechanism |
FI123991B (fi) | 2010-05-24 | 2014-01-31 | Synoste Oy | Kehonsisäinen hoitolaite |
US9248043B2 (en) | 2010-06-30 | 2016-02-02 | Ellipse Technologies, Inc. | External adjustment device for distraction device |
US8734488B2 (en) | 2010-08-09 | 2014-05-27 | Ellipse Technologies, Inc. | Maintenance feature in magnetic implant |
US8961567B2 (en) | 2010-11-22 | 2015-02-24 | DePuy Synthes Products, LLC | Non-fusion scoliosis expandable spinal rod |
WO2012112396A2 (en) | 2011-02-14 | 2012-08-23 | Ellipse Technologies, Inc. | Device and method for treating fractured bones |
EP2712304A4 (de) | 2011-05-16 | 2015-06-17 | Smith & Nephew Inc | Messung einer skelettdistraktion |
US10743794B2 (en) | 2011-10-04 | 2020-08-18 | Nuvasive Specialized Orthopedics, Inc. | Devices and methods for non-invasive implant length sensing |
WO2013066946A1 (en) | 2011-11-01 | 2013-05-10 | Ellipse Technologies, Inc. | Adjustable magnetic devices and methods of using same |
US9078711B2 (en) | 2012-06-06 | 2015-07-14 | Ellipse Technologies, Inc. | Devices and methods for detection of slippage of magnetic coupling in implantable medical devices |
US20130338714A1 (en) | 2012-06-15 | 2013-12-19 | Arvin Chang | Magnetic implants with improved anatomical compatibility |
US9044281B2 (en) | 2012-10-18 | 2015-06-02 | Ellipse Technologies, Inc. | Intramedullary implants for replacing lost bone |
CN104902854B (zh) | 2012-10-29 | 2017-10-03 | 诺威适骨科专科公司 | 用于治疗膝盖关节炎的可调节装置 |
US9179938B2 (en) | 2013-03-08 | 2015-11-10 | Ellipse Technologies, Inc. | Distraction devices and method of assembling the same |
US10226242B2 (en) | 2013-07-31 | 2019-03-12 | Nuvasive Specialized Orthopedics, Inc. | Noninvasively adjustable suture anchors |
US9801734B1 (en) | 2013-08-09 | 2017-10-31 | Nuvasive, Inc. | Lordotic expandable interbody implant |
US10751094B2 (en) | 2013-10-10 | 2020-08-25 | Nuvasive Specialized Orthopedics, Inc. | Adjustable spinal implant |
US9629670B2 (en) * | 2014-01-22 | 2017-04-25 | Globus Medical, Inc. | Intramedullary nails |
CN106456215B (zh) | 2014-04-28 | 2020-04-10 | 诺威适骨科专科公司 | 用于调整医疗植入物的外部调整装置 |
DE102014112573A1 (de) * | 2014-09-01 | 2016-03-03 | Wittenstein Ag | Marknagel |
JP6672289B2 (ja) | 2014-10-23 | 2020-03-25 | ニューベイシブ スペシャライズド オーソペディックス,インコーポレイテッド | 遠隔調整可能なインタラクティブ骨再形成インプラント |
BR112017013834A2 (pt) | 2014-12-26 | 2019-11-19 | Nuvasive Specialized Orthopedics Inc | sistemas e métodos para distração |
CA2917676A1 (en) | 2015-01-13 | 2016-07-13 | Stryker European Holdings I, Llc | Growing rods and methods of use |
WO2016134326A2 (en) | 2015-02-19 | 2016-08-25 | Nuvasive, Inc. | Systems and methods for vertebral adjustment |
BR112018007347A2 (pt) | 2015-10-16 | 2018-10-23 | Nuvasive Specialized Orthopedics, Inc. | dispositivos ajustáveis para o tratamento da artrite do joelho |
EP4275631A3 (de) | 2015-12-10 | 2024-02-28 | NuVasive Specialized Orthopedics, Inc. | Externe einstellvorrichtung für distraktor |
ES2879405T3 (es) | 2016-01-28 | 2021-11-22 | Nuvasive Specialized Orthopedics Inc | Sistemas para transporte óseo |
WO2017139548A1 (en) | 2016-02-10 | 2017-08-17 | Nuvasive Specialized Orthopedics, Inc. | Systems and methods for controlling multiple surgical variables |
ES2875309T3 (es) | 2017-11-30 | 2021-11-10 | Endotact | Dispositivo de distracción implantable |
US11446064B2 (en) | 2018-04-26 | 2022-09-20 | Stryker European Operations Holdings Llc | Orthopedic growing devices |
AU2020217806A1 (en) | 2019-02-07 | 2021-08-26 | Nuvasive Specialized Orthopedics, Inc. | Ultrasonic communication in medical devices |
US11589901B2 (en) | 2019-02-08 | 2023-02-28 | Nuvasive Specialized Orthopedics, Inc. | External adjustment device |
US20220265327A1 (en) | 2021-02-23 | 2022-08-25 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant, system and methods |
US11737787B1 (en) | 2021-05-27 | 2023-08-29 | Nuvasive, Inc. | Bone elongating devices and methods of use |
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DE4421428C1 (de) * | 1994-06-18 | 1995-07-27 | Fichtel & Sachs Ag | Mit einem Elektromotor zu einer Baueinheit verbindbares Planetengetriebe |
WO1998030163A1 (de) * | 1997-01-07 | 1998-07-16 | Wittenstein Motion Control Gmbh | Distraktionsvorrichtung zum auseinanderbewegen zweier teile eines knochens |
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JP2001330087A (ja) * | 2000-05-22 | 2001-11-30 | Honda Motor Co Ltd | アクチュエータ |
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AT228584B (de) * | 1961-12-22 | 1963-07-25 | Simmering Graz Pauker Ag | Stirnrad-Planetengetriebe |
DE4024201A1 (de) * | 1990-07-31 | 1992-02-06 | Fichtel & Sachs Ag | Planetenradtraeger mit freigelagerten planetenraedern |
US5704938A (en) * | 1996-03-27 | 1998-01-06 | Volunteers For Medical Engineering | Implantable bone lengthening apparatus using a drive gear mechanism |
-
2004
- 2004-07-22 EP EP04763399A patent/EP1677692A1/de not_active Withdrawn
- 2004-07-22 US US10/569,665 patent/US7666184B2/en not_active Expired - Fee Related
- 2004-07-22 WO PCT/EP2004/008195 patent/WO2005027763A1/de active Application Filing
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DE4421428C1 (de) * | 1994-06-18 | 1995-07-27 | Fichtel & Sachs Ag | Mit einem Elektromotor zu einer Baueinheit verbindbares Planetengetriebe |
WO1998030163A1 (de) * | 1997-01-07 | 1998-07-16 | Wittenstein Motion Control Gmbh | Distraktionsvorrichtung zum auseinanderbewegen zweier teile eines knochens |
WO2001081787A1 (en) * | 2000-04-25 | 2001-11-01 | Kim Seo San | A multi-function pulley lift with the multi-stage reducer |
JP2001330087A (ja) * | 2000-05-22 | 2001-11-30 | Honda Motor Co Ltd | アクチュエータ |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section PQ Week 200213, Derwent World Patents Index; Class Q12, AN 2002-093989, XP002308727 * |
Also Published As
Publication number | Publication date |
---|---|
US20070015622A1 (en) | 2007-01-18 |
EP1677692A1 (de) | 2006-07-12 |
US7666184B2 (en) | 2010-02-23 |
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