DE20010279U1 - Expansion screw for orthodontics - Google Patents

Expansion screw for orthodontics

Info

Publication number
DE20010279U1
DE20010279U1 DE20010279U DE20010279U DE20010279U1 DE 20010279 U1 DE20010279 U1 DE 20010279U1 DE 20010279 U DE20010279 U DE 20010279U DE 20010279 U DE20010279 U DE 20010279U DE 20010279 U1 DE20010279 U1 DE 20010279U1
Authority
DE
Germany
Prior art keywords
bodies
protection
teeth
screw according
thread
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
Application number
DE20010279U
Other languages
German (de)
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.)
Leone SpA
Original Assignee
Leone SpA
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 Leone SpA filed Critical Leone SpA
Publication of DE20010279U1 publication Critical patent/DE20010279U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (7)

1. Dehnschraube für orthodontische Vorrichtungen mit zwei gegenüberliegenden Körpern mit jeweils einer Bohrung in der Mitte für die Aufnahme eines Gewin­ deschaftes einer Doppel-Stellschraube und zwei zusätzlichen Bohrungen, die parallel zu der Bohrung in der Mitte gearbeitet sind und sich links und rechts von der Längsachse der mittleren Bohrung befinden und zur Aufnahme von zwei seitlichen Führungsstiften dienen, wobei Verbindungselemente zwischen dem Gewindeschaft und den beiden Körpern vorgesehen sind, dadurch gekennzeichnet, daß diese Verbindungselemente aus einer Reihe von Zähnen (72) an den beiden Körpern (21) bestehen, die zentripetal gear­ beitet, das heißt grundsätzlich in Richtung der Längsachse der Bohrung ge­ richtet und gearbeitet sind und so hoch sind, daß sie das Gewinde des ent­ sprechenden Schaftes (31) festlegen.1. Expansion screw for orthodontic appliances with two opposing bodies, each with a hole in the middle for receiving a thread deschaftes a double adjusting screw and two additional holes that are worked parallel to the hole in the middle and to the left and right of the longitudinal axis are located in the middle bore and serve to receive two lateral guide pins, connecting elements being provided between the threaded shaft and the two bodies, characterized in that these connecting elements consist of a series of teeth ( 72 ) on the two bodies ( 21 ) which are centripetal gear is working, that is, in principle in the direction of the longitudinal axis of the bore, is directed and worked and is so high that it fixes the thread of the corresponding shaft ( 31 ). 2. Schraube nach Schutzanspruch 1, dadurch gekennzeichnet, daß die Zähne (72) durch ein Ringelement (7) gehaltert werden, welches an den Körpern (21) stabil befestigt und in einen entsprechenden Sitz (210) eingesetzt wird, der sich an der mittleren Bohrung befindet.2. Screw according to protection claim 1, characterized in that the teeth ( 72 ) are held by a ring element ( 7 ) which is stably attached to the bodies ( 21 ) and inserted into a corresponding seat ( 210 ) which is located on the middle Hole is located. 3. Schraube nach Schutzanspruch 1, dadurch gekennzeichnet, daß die Zähne (72) mit den Körpern (21) einstückig gearbeitet sind.3. Screw according to protection claim 1, characterized in that the teeth ( 72 ) with the bodies ( 21 ) are made in one piece. 4. Schraube nach Schutzanspruch 3, dadurch gekennzeichnet, daß die Körper (21) aus Stahlblechpreßteilen gefertigt sind.4. Screw according to protection claim 3, characterized in that the body ( 21 ) are made of pressed steel parts. 5. Schraube nach einem der vorstehenden Schutzansprüche, dadurch gekenn­ zeichnet, daß die Zähne (72) drei zueinander im gleichen Winkel angeordnete Zähne sind.5. Screw according to one of the preceding claims for protection, characterized in that the teeth ( 72 ) are three teeth arranged at the same angle to one another. 6. Schraube nach Schutzanspruch 1, dadurch gekennzeichnet, daß die Zähne nach einer Seite geneigt sind, so daß die Relativverschiebung des Gewinde­ schaftes in Bezug zu den Körpern in eine Richtung ermöglicht ist.6. Screw according to protection claim 1, characterized in that the teeth are inclined to one side so that the relative displacement of the thread shaft in relation to the bodies is made possible in one direction. 7. Schraube nach Schutzanspruch 1, dadurch gekennzeichnet, daß die mittlere Bohrung der Körper einen derartigen Durchmesser aufweist, daß der Gewin­ deschaft (31) leicht aufgenommen werden kann.7. Screw according to protection claim 1, characterized in that the central bore of the body has a diameter such that the thread deschaft ( 31 ) can be easily accommodated.
DE20010279U 1999-06-15 2000-06-08 Expansion screw for orthodontics Expired - Lifetime DE20010279U1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI990071 IT247864Y1 (en) 1999-06-15 1999-06-15 EXPANSION SCREW FOR ORTHODONTICS

Publications (1)

Publication Number Publication Date
DE20010279U1 true DE20010279U1 (en) 2000-08-31

Family

ID=11352887

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20010279U Expired - Lifetime DE20010279U1 (en) 1999-06-15 2000-06-08 Expansion screw for orthodontics

Country Status (2)

Country Link
DE (1) DE20010279U1 (en)
IT (1) IT247864Y1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016120896A1 (en) 2015-01-31 2016-08-04 Leone S.P.A. Expansion screw for orthodontic appliances.
WO2016120897A1 (en) 2015-01-31 2016-08-04 Leone S.P.A. Expansion screw for orthodontics
US11389274B2 (en) * 2019-06-04 2022-07-19 Bernhard Foerster Gmbh Orthodontic expansion screw

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016120896A1 (en) 2015-01-31 2016-08-04 Leone S.P.A. Expansion screw for orthodontic appliances.
WO2016120897A1 (en) 2015-01-31 2016-08-04 Leone S.P.A. Expansion screw for orthodontics
US10342639B2 (en) 2015-01-31 2019-07-09 Leone S.P.A. Expansion screw for orthodontic appliances
US10973614B2 (en) 2015-01-31 2021-04-13 Leone S.P.A. Expansion screw for orthodontics
US11389274B2 (en) * 2019-06-04 2022-07-19 Bernhard Foerster Gmbh Orthodontic expansion screw

Also Published As

Publication number Publication date
IT247864Y1 (en) 2002-09-10
ITFI990071U1 (en) 2000-12-15

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20001005

R150 Term of protection extended to 6 years

Effective date: 20031015

R151 Term of protection extended to 8 years

Effective date: 20060921

R152 Term of protection extended to 10 years

Effective date: 20080917

R071 Expiry of right