DE202007003834U1 - Shifting device for bone parts in maxillofacial surgery and orthopedics, comprises exciter that transfers necessary rotation energy from outside non sterile to sterile area over rotating magnetic field of permanent magnet of rotor - Google Patents
Shifting device for bone parts in maxillofacial surgery and orthopedics, comprises exciter that transfers necessary rotation energy from outside non sterile to sterile area over rotating magnetic field of permanent magnet of rotor Download PDFInfo
- Publication number
- DE202007003834U1 DE202007003834U1 DE200720003834 DE202007003834U DE202007003834U1 DE 202007003834 U1 DE202007003834 U1 DE 202007003834U1 DE 200720003834 DE200720003834 DE 200720003834 DE 202007003834 U DE202007003834 U DE 202007003834U DE 202007003834 U1 DE202007003834 U1 DE 202007003834U1
- Authority
- DE
- Germany
- Prior art keywords
- sterile
- permanent magnet
- displacement device
- compression spring
- rotor
- 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.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
- A61B17/663—Alignment, compression or distraction mechanisms for jaw bones, e.g. subcutaneous distractors with external access
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
- A61B17/8071—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones for the jaw
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)
Abstract
Description
ZusammenfassungSummary
Extracorporaler Magnetantrieb zur Distraktion (Verschiebung) von Knochenteilen in der maxillofacialen Chirurgie oder Orthopädie.Extracorporeal Oral Magnetic drive for distraction (displacement) of bone parts in maxillofacial surgery or orthopedics.
Die Erfindung betrifft eine implantierbare Vorrichtung zur Verschiebung von Knochenteilen die nicht invasiv, (durch keine künstlich geschaffene Öffnung) von außen betrieben werden kann.The The invention relates to an implantable device for displacement of bone parts which are not invasive, (by no artificial created opening) from the outside can be operated.
Stand der TechnikState of technology
In der Orthopädie und maxillofacialen Chirurgie sind Vorrichtungen bekannt die dazu dienen Knochenteile auseinander zu drücken sodass man nach einer bestimmten Behandlungszeit eine Knochenverlängerung oder Umpositionierung erreichen kann.In orthopedics and maxillofacial surgery devices are known to do so Bone parts serve to push apart so you look for a certain treatment time, a bone extension or repositioning can reach.
Diese Vorrichtungen werden operativ an Knochen befestigt und werden danach in gewissen Zeitabständen über längere Zeit, kontrolliert distrahiert.These Devices are surgically attached to bone and become afterwards at certain intervals over a longer period, controlled distracted.
Die mechanische Spannung wird bei allen heute bekannten Distraktoren mit einer Schraube und einen entsprechenden Schlüssel durchgeführt.The Mechanical tension is used in all known today distractors performed with a screw and a corresponding key.
Der Zugang zur Schraube erfolgt über eine offene Stelle im Weichteilgewebe des Patienten die über einen längeren Zeitraum behandelt werden muss, um einen Keimeintritt zu verhindern. Der Zugang zur Spannschraube von außen ist auf Dauer eine permanente Infektionsgefahr.Of the Access to the screw is via an open spot in the soft tissue of the patient over a longer Period must be treated to prevent germination. The access to the clamping screw from the outside is permanently a permanent Infection risk.
Beschreibungdescription
Dieser Erfindung liegt die Aufgabe zu Grunde, eine Vorrichtung anzubieten, welche die Verschiebung der Knochenteile (Distraktion) ohne einen dauerhaften offenen Zugang realisieren kann.This Invention is based on the object to offer a device which the displacement of the bone parts (distraction) without a permanent can realize open access.
Beschrieben werden drei Ausführungen für die Distraktion (Verschiebung) von Knochenteile mit Anwendung in der plastischen oder maxillofacialen Chirurgie und Orthopädie.described be three versions for the Distraction (displacement) of bone parts with application in the plastic or maxillofacial surgery and orthopedics.
Ausführung 1 (
Die
notwendige Kraft zur Verschiebung der Knochenteile wird von einer
vorgespannten Druckfeder (
Die Erfindung zeichnet sich dadurch aus, dass sich eine vorgespannte Feder in kontrollierten Schritten im linearen Bereich mit einem externen Erreger entspannen lässt. Dadurch, wird eine extracorporale Distraktion ermöglicht.The Invention is characterized in that a prestressed Spring in controlled steps in the linear area with a relaxes external pathogen. This allows extracorporeal distraction.
Die
Kraft (Fd) der Feder wirkt auf die beiden Seiten des Gehäuses (
Zwischen
der Kupplung (
Von
außen,
wird ein Erreger (
Wird
von außen
ein Hochfrequenzimpuls ausgelöst,
wird über
die Kurzschlusswindung (
Ausführung 2 (
Höhere Verschiebungskräfte können mit
dieser Ausführung
erreicht werden. Ein externer Erreger bestehend aus einem Antriebsmotor
(
Die
Erfindung zeichnet sich dadurch aus, dass die Verschiebung der Knochenteile
von außen, durch
ein Dauermagnetfeld über
ein Resonanz Effekt realisiert wird. Die Drehzahl des Erregers entspricht der
Resonanz Frequenz (Fres) eines oszillierenden Magneten (
Die
axiale Bewegung des Magneten (
Der
Zylinder (
Ausführung 3 (
Die Erfindung zeichnet sich dadurch aus, dass man von außen, über ein gekoppeltes Magnetfeld von zwei Dauermagneten eine Verschiebungskraft zwischen zwei Knochenteile im sterilen Bereich eines Patienten realisieren kann.The Invention is characterized by the fact that from the outside, over a coupled magnetic field of two permanent magnets a displacement force between two bone parts in the sterile area of a patient can.
Die
mechanische Vorrichtung besteht beispielsweise aus einer vorgespannten
Druckfeder (
Wird
der außen
Magnet (
Die
Ausführung
in der
Angefügte Zeichnungen:Attached drawings:
- 1.1
- Dauermagnet Rotor
- 1.2
- Kurzschlusswindung mit Gleichrichter Diode
- 1.3
- Kupplung
- 1.4
- Edelstahl Gewindestange
- 1.5
- Edelstahl Gewindestange
- 1.6
- Teflon Mutter
- 1.7
- Druckfeder
- 1.8
- Knochenanatomie
- 1.9
- Erreger
- 1.10
- Zylinder
- 1.12
- Gehäuse
- 1.13
- Andruckfläche
- 1.1
- Permanent magnet rotor
- 1.2
- Short circuit winding with rectifier diode
- 1.3
- clutch
- 1.4
- Stainless steel threaded rod
- 1.5
- Stainless steel threaded rod
- 1.6
- Teflon nut
- 1.7
- compression spring
- 1.8
- bone anatomy
- 1.9
- pathogen
- 1.10
- cylinder
- 1.12
- casing
- 1.13
- pressure surface
- 2.1
- Antriebsmotor.
- 2.2
- Geschlitzter Zylinder
- 2.3
- Kunststoff Federn
- 2.4
- Schneckengetriebe
- 2.5
- Erreger, Dauermagnet
- 2.6
- Dauermagnet.
- 2.7
- Rücklaufhülse gleitend
- 2.8
- Geschlitzter Zylinder
- 2.9
- Knochenanatomie
- 2.10
- Stange
- 2.11
- Stift
- 2.12
- Rücklaufhülse fest
- 2.13
- Verschiebungsschraube
- 2.1
- Drive motor.
- 2.2
- Slotted cylinder
- 2.3
- Plastic springs
- 2.4
- worm gear
- 2.5
- Exciter, permanent magnet
- 2.6
- Permanent magnet.
- 2.7
- Return sleeve sliding
- 2.8
- Slotted cylinder
- 2.9
- bone anatomy
- 2.10
- pole
- 2.11
- pen
- 2.12
- Return sleeve firmly
- 2.13
- screw drive
- 3.1
- Schneckengetriebe
- 3.2
- Scheibenmagnet Rotor
- 3.3
- Druckfeder
- 3.4
- Umlenkbolzen
- 3.5
- Führung
- 3.6
- Zahnrad
- 3.7
- Winde
- 3.8
- Spanndraht
- 3.9
- Gehäuse
- 4.1
- Druckfeder
- 4.2
- Umlenkbolzen
- 4.3
- Spanndraht
- 4.4
- Druckfeder
- 4.5
- Schneckengetriebe
- 3.1
- worm gear
- 3.2
- Disc magnet rotor
- 3.3
- compression spring
- 3.4
- deflecting
- 3.5
- guide
- 3.6
- gear
- 3.7
- winch
- 3.8
- tension wire
- 3.9
- casing
- 4.1
- compression spring
- 4.2
- deflecting
- 4.3
- tension wire
- 4.4
- compression spring
- 4.5
- worm gear
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200720003834 DE202007003834U1 (en) | 2007-03-15 | 2007-03-15 | Shifting device for bone parts in maxillofacial surgery and orthopedics, comprises exciter that transfers necessary rotation energy from outside non sterile to sterile area over rotating magnetic field of permanent magnet of rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200720003834 DE202007003834U1 (en) | 2007-03-15 | 2007-03-15 | Shifting device for bone parts in maxillofacial surgery and orthopedics, comprises exciter that transfers necessary rotation energy from outside non sterile to sterile area over rotating magnetic field of permanent magnet of rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007003834U1 true DE202007003834U1 (en) | 2007-07-19 |
Family
ID=38289232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200720003834 Expired - Lifetime DE202007003834U1 (en) | 2007-03-15 | 2007-03-15 | Shifting device for bone parts in maxillofacial surgery and orthopedics, comprises exciter that transfers necessary rotation energy from outside non sterile to sterile area over rotating magnetic field of permanent magnet of rotor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202007003834U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
-
2007
- 2007-03-15 DE DE200720003834 patent/DE202007003834U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 20070823 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20101001 |