CA2093297A1 - Light conductor for an illuminating device - Google Patents

Light conductor for an illuminating device

Info

Publication number
CA2093297A1
CA2093297A1 CA002093297A CA2093297A CA2093297A1 CA 2093297 A1 CA2093297 A1 CA 2093297A1 CA 002093297 A CA002093297 A CA 002093297A CA 2093297 A CA2093297 A CA 2093297A CA 2093297 A1 CA2093297 A1 CA 2093297A1
Authority
CA
Canada
Prior art keywords
light conductor
connecting sleeve
fact
accordance
handle
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
CA002093297A
Other languages
French (fr)
Inventor
Helmut Griegereit
Steffen Oppawsky
Dieter Schodel
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.)
Kulzer GmbH
Original Assignee
Heraeus Kulzer GmbH
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 Heraeus Kulzer GmbH filed Critical Heraeus Kulzer GmbH
Publication of CA2093297A1 publication Critical patent/CA2093297A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00Dental auxiliary appliances
    • A61C19/003Apparatus for curing resins by radiation
    • A61C19/004Hand-held apparatus, e.g. guns
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3813Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for transmission of high energy beam
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/389Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3845Details of mounting fibres in ferrules; Assembly methods; Manufacture ferrules comprising functional elements, e.g. filters

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

ABSTRACT

The invention relates to a light conductor for an illuminating device for medical and/or dental technological applications, having a flexible central piece, on one end of which an connecting part is provided, and on the other end of which there is a handle part with a light outlet component.
In order to make a light conductor with a handle component which can easily be mounted and dismounted and which can also provide a constant output of light radiation in any position, a connecting sleeve is firmly attached to the handle end of the central piece, which works in conjunction with the connecting parts of the handle component, whereby the connecting sleeve and the connecting parts are engaged by means of catch elements inserted into each other, in such a way that they can easily be released, and whereby the connecting sleeve and the connecting parts are centred with respect to their axes by means of the catch elements.

in:

Description

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LIGHT CONDUCTOR ~OR AN ILLUMINATING DEVICE

The invention relates to a light conductor for an illuminating device for medical and/or dental technological applications, having a flexible central piece, at one end of which a connecting part is arranged, and at the other end, a handle with a light outlet component.

This type of light conductor is already known from D~ 30 09 171. The light conductor described therein contains a flexible central piace, which is connected at one end to a light source via a connecting component. At the other end of the flexible central part, a connecting sleeve is arranged, which serves as a handle and in which a light outlet component has been inserted and fixed. The light conductor described here is therefore relatively easy to set up.
However, day-to-day work with this type of equipment shows increasingly clsarly the necessity for the effective cleaning of such equipment, particularly the handle and the light outlet as part of the regular routine in the laboratory or treatment rooms after the equipment has been used. However, it is not possible to do this and still ensure a proper working with the type of light conductor described above since it is not a straight~orward matter to dismount the handle component.
Another arrangement of this type is known from the prospectus issued by Kulzer GmbH, entitled "Trans-Lux High-Efficiency-Hand-Light-Equipment for Use in Practice and the Laboratory".
(151188/D 1~5 SK det.). The light conductor here described has a flexi~le central piece, with a connecting piece arranged at one end, and has a handle component with a light outlet component at the other. The handle component is likewise not removable.

The object of the present invention is therefore to create a light conductor, the handle component of which can be easily and repeatedly mounted and dismounted, and which is able to provide a constant supply of light in any position.

The invention solves the problem for a light in~

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conductor in accordance with the principal concept of Claim 1 by the fact that on the handle end of the central piece, a firmly attached connecting sleeve works in conjunction with the connecting parts of the handle component, whereby the connecting sleeve and the connecting parts are engaged by catch elements in such a way that they can be released, and whereby the connecting sleeve and the connecting parts are centred with respect to their axes via the catch lements. This type of light conductor can easily be assembled or disassembled at any time in laboratories and treatment rooms, so that the handle with the light outlet component can easily be removed and cleaned when exposed to contamination, for instance, when illumination is needed inside the mouth of a patient.

At the same time, by centring the axes of the individual light conductor components, it ensures that the light outlet can maintain the same constant conditions of illumination in any given position thus guaranteeing the reproducibility of the illumination procedures For optimum cleaniny, it is advantageous for the handle component to consist of material which lends itself to sterilization. This offers the possibility of making the handle component germ-free after it has become contaminated in use, thus satisfying rigorous hygienic requirements.

It is practical to have at least thxee catch elements ~rranged at equa~ distances from each other in a curved path which coaxially surrounds the axis of the light conductor. This arrangement guarantees an exactly centred and reproducible arrangement of the handle component, so that the light radiation emerging from the light outlet component remains constant, regardless of the position of the centred handle component.

It is advantageous for the catch elements to be ball-shaped. In addition, it is expedient for the connecting sleeve to have radial openings, in each of which a catch element is arranged so that it can move. This enables centring in: -2-to be carried out in a particularly simple way. However, the catch elements could also be, for example, in the form of pins, with either rounded or pointed ends.

It is practical for the cross-section of the radial openings in the region of the inner surface of the connectiny sleeve to be tapered. Such tapering prevents the catch elements falling inside the connecting sleeve after the handle component has been removed, thus preventiny further assembly. -It is advantageous for the radial extension of the openings to be somewhat smaller than the radial extension of the catch element, and the connecting sleeve in the area of the openings to be embraced by a locking ring which is arranged so as to move on the connecting sleeve and which has an enlarged inner region in its diameter, into which the catch elements are released outwards from their engagement with the connecting parts of the handle component when the locking ring is shifted. This arrangement guarantees that the catch elements are free of play when engaged with the connecting parts of the handle component, since the locking ring exerts a force on the catch elements in the direction of the handle.
It further ensures that when the locking ring is moved, the catch elements can move outwards, so that the handle component can be released and withdrawn from the connecting sleeve.

In order to prevent accidental shifting of the locking ring, A resilient tension element is arranged at least partly between the connecting sleevs (2) and the locking ring ~71 to hold the latter in its locked position so that it has to be moved against a force into the release position. It is advantageous for this tension element to be a spiral spring, arranged between a stop on the connecting sleeve and a stopping surface on the locking ring. The stop on the connecting sleeve could take the form of a bulge all the way round the sleeve, or perhaps a collar, the outer region of which could be angled in the direction of the locking ring, so that this angled area forms a cylinder coaxially embracing the connecting in: ~3-sleeve and spiral spring. The stopping surface of the locking ring could for example be a frontal surface of the lockiny ring or a surface set back against the front surface in the form of a step going all the way round it.

It is advantageous for the connecting parts of the handle component to take the form of a groove running round. The catch elements could engage in this groove, which not only ensures exact axial adjustment o~ the handle component, but also enables the handle component to turn on its longitudinal axis because the groove passes all the way round.
In this way, the handle component~ which normally has a curved light outlet component, can always be brought into the optimum working position, without any torsion being exerted on the flexible central piece.

It is also advantageous for the connecting piece to screw on to the handle end of the central piece. This not only provides a secure fit, but also enables simple removal of the connecting piece. Other methods are conceivable, such as the use of adhesives or shrinking. However, i~ these methods are used, it will no longer be a simple matter to remove the connecting piece.

Between the handle end of the central piece and the handle component, an optical filter or other optical element can be placed inside the connecting sleeve, for the purpose of modifying the radiation properties of the emerging light rays, e.g. the wave-length etc.

The construction of the invention will now by clarified in more detail by means of a drawing. This drawing shows:

Figure 1 A schematic representation of one end of the light conductor showing connecting sleeve and handle component Figure 2 A schematic representation o~ the coupling in:
2~ ~J !~ .t 7 between the handle component and the central piece Figure 3 A section along line A - A of Figure 2.

The light conductor Por an illumination device for medical and/or dental use can find particular application for such purposes as hardening synthetic dental technological materials in the mouth of a patient by polymerization. The light conductor has a flexible central piece (1~, on one end of which a connection piece is arranged for connection to a light-source. Figure 1 shows the other end of the flexible central piece (1). On to this end of the flexible central piece (1) a connecting sleeve (2) is screwed, in which the handle component (3) with light outlet component (4) is arranged so as to be removable. The handle component (3) containing light outlet component (4) is made of material which can be sterilized, e.g. with steam or hot air.

Figure 2 shows the connecting sleeve (2) with the end of the central piece (1) of the light conductor screwed on and the handle piece (3) inserted. An optical filter is placed between the intermediate piece (1) and the handle component (3). At the handle end of the connecting sleeve (2) three radial openings spaced at equal distances are arranged in a circular path. These openings are tapered toward the inner surface of the connecting sleeve (2) so that the balls ~6), arranged as catch elements in the openings~ and whose diameters are only very slightly smaller than the diameter of the openings cannot fall into the inside of the connecting sleeve (2). Since the length of the openings is somewhat smaller than their diameters, the balls ~6) are pressed into connecting ~leeve (2) by a locking ring (7) which slides on the connecting sleeve (2) in such a way that they lie in groove (8) of handle component (3). This causes handle component (3) to be held in an exactly adjusted position. It is nevertheless able to turn in the ~onnecting sleeve (2) so that the position o~ the light outlet component (4) can be adapted to the position o~ the surface needed to be illuminated without causing any torsional in: -5-distortions within the flexible central piece (1).

After the equipment has been used, handle component (3) can be removed from the guide-sleeve (2) and sterilized before being subsequently re-used. In order to remove handle component (3) from connecting sleeve (2), locking ring (7) is shifted to the handle end of connecting sleeve (2) so that the enlarged inner portion of the diameter (9) of locking ring (7) is located over the balls (6). These will now move when an outward working force takes effect on handle component (3), so that groove (8) is released and handle component (3) can be withdrawn from connecting sleeve (2).
Since the radial openings to the inner surface of connecting sleeve (2) are tapered, the balls (6) cannot pass into the inside of connecting sleeve (2) but remain within the openings of connecting sleeve (2).

When the locking ring (7~ is released, it moves back over the openings with its section adapted to the diameter of connecting sleeve (2) in the region of the openings, and thus stops the balls (6). The automatic movement of locking ring (7) into the locking position is krought about by a spiral spring (10) which is arranged between a surface (ll) set back in the inner area of locking ring (7) opposed to its frontal surface in the form of a step running round it and a collar (12) arranged, placed at the handle end of the guide-sleeve (2). The outer region of the collar is angled towards the openings and coaxially emhraces the spiral spring ~10~ and part o~ the outer surface of the locking ring ~7), so that the spiral spring (10) is protected from damage or interference.
The spiral spring (10) prevents the balls (6) from falling out and thereby prevents the unintentional release of handle component (3) from connecting sleeve (2).

Before inserting handle component (3) into the connecting sleeve (2), locking ring (7) is moved against the force of the spring into the release position, so that the balls (6) in the openings can move outwards permitting handle component (3) to be inserted into connecting sleeve (2). After in: -6-letting go the locking ring (7~, the latter moves back into the locking-position and handle component (2) is firmly held.

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Claims (12)

1. Light conductor for an illuminating device for medical and/or dental technological applications with a flexible central part which has a connecting component at one end and a handle component with a light outlet at the other end, and characterized by the fact that at the handle end of the central piece (1) there is a connecting sleeve (2) which is firmly attached, and which works in conjunction with the connecting parts (8) of the handle component (3) whereby the connecting sleeve (2) and the connecting parts (8) engage with catch elements (6) in such a way as to be releasable and whereby the connecting sleeve (2) and the connecting parts (8) are centred with respect to their axes by the catch elements. (6).
2. Light conductor in accordance with Claim 1, characterized by the fact that the handle component (3) consists of material which can be sterilized.
3. Light conductor in accordance with Claims 1 or 2, characterized by the fact that at least. three catch elements (6) are arranged in a circular path coaxially surrounding the axis of the light conductor and that these catch elements are spaced at equal distances from each other.
4. Light conductor in accordance with one of Claims 1 to 3, characterized by the fact that the catch elements (6) are ball-shaped.
5. Light conductor in accordance with one of Claims 1 to 4, characterized by the fact that the connecting sleeve (2) displays radial openings, in each of which a catch element (6) is placed and able to move.
6. Light conductor in accordance with Claim 5, characterized by the fact that the diagonal cut of the radial openings in the area of the inner surface of the in: -8-connecting sleeve (2) is tapered.
7. Light conductor in accordance with Claim 5 or 6, characterized by the fact that the radial extension of the openings is smaller than the radial extension of the catch elements (6) and that the connecting sleeve (2) in the area of the openings is embraced by a locking ring (7) arranged so as to slide on the connecting sleeve and which has an expanded inner region (9) in its diameter, into which the catch elements (6) are released outwards from their engagement with the connecting parts (8) of the handle component (3) when the locking ring (7) is shifted.
8. Light conductor in accordance with Claim 7, characterized by the fact that a resilient tension element (10) is arranged at least partly between the connecting sleeve (2) and the locking ring (7) to hold the locking ring (7) in its locking position, so that the locking ring (7) moves into its release position against the force exerted by this element.
9. Light conductor in accordance with Claim 8, characterized by the fact that the tension element (10) is a spiral spring, set between a stop on the connecting sleeve (2) and a stopping surface of the locking ring (7).
10. Light conductor in accordance with Claims 5 to 9, characterized by the fact that the connecting parts (8) of the handle component (2) are formed by a groove running round.
11. Light conductor in accordance with one of Claims 1 to 10, characterized by the fact that the connecting sleeve (2) screws on to the handle end of the central piece (1).
12. Light conductor in accordance with one of Claims 1 to 11, characterized by the fact that an optical filter (5) is placed between the handle end of the central piece and the handle component (3) inside the connecting in: -9-sleeve (2).

in: -10-
CA002093297A 1992-05-16 1993-04-02 Light conductor for an illuminating device Abandoned CA2093297A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216254A DE4216254C2 (en) 1992-05-16 1992-05-16 Light guide for a radiation device
DEP4216254.8 1992-05-16

Publications (1)

Publication Number Publication Date
CA2093297A1 true CA2093297A1 (en) 1993-11-17

Family

ID=6459069

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002093297A Abandoned CA2093297A1 (en) 1992-05-16 1993-04-02 Light conductor for an illuminating device

Country Status (7)

Country Link
EP (1) EP0570665A1 (en)
JP (1) JPH06254105A (en)
AU (1) AU3858393A (en)
CA (1) CA2093297A1 (en)
DE (1) DE4216254C2 (en)
FI (1) FI932213L (en)
NO (1) NO930626L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8114068B2 (en) 2006-10-17 2012-02-14 Dornier Medtech Laser Gmbh Light guide
US9149334B2 (en) 2008-04-25 2015-10-06 Dornier Medtech Laser Gmbh Light-based method for the endovascular treatment of pathologically altered blood vessels

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331859C1 (en) * 1993-09-20 1994-10-27 Heraeus Kulzer Gmbh Light feed device
GB2311621A (en) * 1996-03-27 1997-10-01 Lumonics Ltd Connector with rotatable sleeve and separated clamps
US6402391B1 (en) 1997-09-05 2002-06-11 Wolfram Henning Plug-and-socket connector for optical fibers
FR2782000B1 (en) * 1998-08-07 2001-03-30 Sed Soc D Expl Dentaire APPARATUS IN PARTICULAR FOR THE PHOTOPOLYMERIZATION OF COMPOSITE MATERIALS USED IN THE DENTAL FIELD
DE19948360A1 (en) * 1999-10-07 2001-04-12 Walter Dittel Material hardening instrument using light energy, such as plastics fillings for teeth, has semiconductor light-emitting device arranged at head of instrument
DE102004009218B4 (en) * 2004-02-26 2006-03-09 Olympus Winter & Ibe Gmbh Coupling connection of a light conductor connection cable with an endoscope optic
US7658548B2 (en) 2004-12-15 2010-02-09 A.R.C. Laser Gmbh Coupling device for a light guide
DE102004060761A1 (en) * 2004-12-15 2006-07-06 Reinhardt Thyzel Coupling device for a light guide
DE102005017798A1 (en) 2005-04-18 2006-11-09 Dornier Medtech Laser Gmbh optical fiber
US9513444B2 (en) * 2013-02-26 2016-12-06 Corning Optical Communications LLC Female hardened optical connectors for use with male plug connectors

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE3009171A1 (en) * 1980-03-11 1981-09-24 Albert Dipl.-Phys. 8000 München Kreitmair Short-wave hardening dental plastics - using radiation-polymerisation equipment contg. quartz photoconductor rod and dielectric thin layer optical filter
DE3232125A1 (en) * 1982-08-28 1984-03-01 Cannon Electric Gmbh, 7056 Weinstadt COUPLING FOR LIGHTWAVE GUIDE
JPS6043309U (en) * 1983-08-31 1985-03-27 株式会社 中西歯科器械製作所 optical handpiece
DE3401391A1 (en) * 1984-01-17 1985-07-25 Argus Verwaltungsgesellschaft Mbh, 7505 Ettlingen Plug connection having a sleeve part and a plug part as coupling elements which can be detachably connected to one another, especially for fluid couplings
DE3424344A1 (en) * 1984-07-03 1986-01-09 Schuetz Dental Gmbh Light exposure unit
FR2570554B1 (en) * 1984-09-17 1987-01-02 Souriau & Cie CONNECTOR PROVIDED WITH LOCKING MEANS OF ITS CONSTITUENT CONNECTOR ELEMENTS IN THEIR MUTUAL CONNECTION POSITION
DE8432347U1 (en) * 1984-11-05 1986-07-17 Siemens AG, 1000 Berlin und 8000 München Ball locking device for the axial connection and disconnection of two parts of a dental device that can be rotated against each other in the coupled state
DE8504351U1 (en) * 1985-02-15 1985-05-15 ESPE Fabrik pharmazeutischer Präparate GmbH, 8031 Seefeld LIGHT GUIDE
US5017140A (en) * 1989-05-15 1991-05-21 Jay Ascher Removable and disposable extension for a light guide of a dental curing light and its method of use
US4948215A (en) * 1989-08-10 1990-08-14 Joshua Friedman Dental light-curing lamp unit with interchangeable autofocus light guides
US5142600A (en) * 1991-02-25 1992-08-25 General Electric Company Optical fiber quick connect/disconnect for a power laser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8114068B2 (en) 2006-10-17 2012-02-14 Dornier Medtech Laser Gmbh Light guide
US9149334B2 (en) 2008-04-25 2015-10-06 Dornier Medtech Laser Gmbh Light-based method for the endovascular treatment of pathologically altered blood vessels
US9168098B2 (en) 2008-04-25 2015-10-27 Dornier Medtech Laser Gmbh Light-based method for the endovascular treatment of pathologically altered blood vessels

Also Published As

Publication number Publication date
NO930626L (en) 1993-11-17
JPH06254105A (en) 1994-09-13
DE4216254A1 (en) 1993-11-18
NO930626D0 (en) 1993-02-23
DE4216254C2 (en) 1994-08-18
FI932213A0 (en) 1993-05-14
EP0570665A1 (en) 1993-11-24
AU3858393A (en) 1993-11-18
FI932213A7 (en) 1993-11-17
FI932213L (en) 1993-11-17

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Legal Events

Date Code Title Description
FZDE Discontinued