EP4680143A1 - Vorrichtung mit einem anschluss zum lösbaren verbinden mit einem handinstrument sowie leuchtmttel, geeignet zur verwendung in einer solchen vorrichtung - Google Patents
Vorrichtung mit einem anschluss zum lösbaren verbinden mit einem handinstrument sowie leuchtmttel, geeignet zur verwendung in einer solchen vorrichtungInfo
- Publication number
- EP4680143A1 EP4680143A1 EP24712423.3A EP24712423A EP4680143A1 EP 4680143 A1 EP4680143 A1 EP 4680143A1 EP 24712423 A EP24712423 A EP 24712423A EP 4680143 A1 EP4680143 A1 EP 4680143A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- contact
- electrical contact
- coupling
- hand instrument
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/088—Illuminating devices or attachments
Definitions
- the invention relates to a device with a connection for detachable connection to a hand instrument in order to supply the hand instrument with mechanical energy, electrical energy, air, water, light and the like, wherein the device extends along an axis and has a first coupling device with a coupling pin which can be inserted into a coupling recess on the hand instrument, wherein a light source for coupling light into a light guide is arranged in the region of the first coupling device.
- the invention further relates to a lighting means suitable for use in such a connecting element, in particular a light-emitting diode (LED) or halogen lamp, with input-side electrical connection contacts for supplying the lighting means with electrical energy.
- a lighting means suitable for use in such a connecting element, in particular a light-emitting diode (LED) or halogen lamp, with input-side electrical connection contacts for supplying the lighting means with electrical energy.
- hand instruments are connected to a supply unit by means of a supply hose.
- the connection is usually made via a coupling that is placed between the hand instrument and the supply hose and through which the media is fed.
- motor-driven handpieces and contra-angles it is usual to couple the drive unit directly to the handpiece or contra-angle, for which the areas to be connected are designed accordingly.
- EP 2 606 847 A1 discloses a dental handpiece that is essentially made up of two parts.
- the first part serves as a handle and houses a drive
- the second part is equipped with a processing tool.
- the end faces facing each other form connection areas, via which the two parts can be axially plugged together.
- a light source is arranged in the connection area of the first part, the light from which is introduced via a coupling surface into a light guide on the second component. This leads into the area of the processing tool and has a light exit surface directed towards the work area.
- EP 2 308408 A2 describes a handle element that can be connected to a supply hose via a connection device.
- the connection device In the connection area, the connection device has ring-shaped electrical contacts that interact with counter contacts on the handle element. Electrical lines lead from the counter contacts to a lighting module in the working area of the tool and supply it with electrical energy.
- a disadvantage of the hand instruments described above is that couplings or drives with light guides are not compatible with hand instruments with sliding contacts and vice versa.
- the users of a system are This is tied to them or they have to accept a complete system change.
- the object of the invention is to improve the compatibility of the components of different types of hand instruments with each other.
- a further object is to be able to expand hand instruments with additional functions.
- a device of the type described above in which a first electrical contact and a second electrical contact are arranged in the region of the first coupling device, which can be supplied with electrical energy from an energy source and which, when connected to the hand instrument, interact with a first electrical counter-contact and a second electrical counter-contact on the hand instrument in order to supply consumers on the hand instrument with electrical energy.
- a lighting device of the type described above in which a first electrical contact and/or a second electrical contact are arranged on the outer circumference, which are electrically connected to the input-side electrical connection contacts.
- the invention is based on the idea of expanding the functionality of existing devices by providing the connection area to the hand-held instrument with electrical contacts in addition to the light source, the light of which can be coupled into a light guide, through which electrical current can be conducted to a consumer in the hand-held instrument.
- a device according to the invention is suitable for hand-held instruments whose lighting device is based on a light guide, through which light is conducted to a light outlet in the area of the tool.
- hand instruments with an electrical load can also be connected to the device according to the invention.
- An electrical load can be a light source, an oscillating scaler and the like.
- a connecting element according to the invention can be used to combine both hand instruments with a light guide and hand instruments with an electrically connected light source.
- Fig. 1 is a side view of a first embodiment of a device according to the invention with a hand instrument that can be coupled thereto,
- Fig. 2 is an oblique view of the device shown in Fig. 1,
- Fig. 3 is an oblique view of the illuminant according to the invention shown in Figs. 1 and 2
- Fig. 4 is an oblique view of an alternative embodiment of a lighting device according to the invention
- Fig. 5 is a side view of a second embodiment of a device according to the invention with a hand instrument that can be coupled thereto,
- Fig. 6 is an oblique view of the device shown in Fig. 5,
- Fig. 7 is a side view of a third embodiment of a device according to the invention with a hand instrument that can be coupled thereto,
- Fig. 8 is an oblique view of the device shown in Fig. 7,
- Fig. 9 is a side view of a fourth embodiment of a device according to the invention with a hand instrument that can be coupled thereto,
- Fig. 10 is an oblique view of the device shown in Fig. 9,
- Fig. 11 is a side view of a fifth embodiment of a device according to the invention with a hand instrument that can be coupled thereto,
- Fig. 12 is an oblique view of the device shown in Fig. 11,
- Fig. 13 is an oblique view of a sixth embodiment of a device according to the invention.
- Fig. 14 is an oblique view of a sixth embodiment of a device according to the invention. Description of the embodiments
- a hand instrument 1.1 can be seen in the form of a turbine handpiece 3 operated with compressed air, which is intended to be connected to a device 2.1 according to the invention.
- the hand instrument 1.1 can also be a scaler, polymerization device, powder jet device or the like.
- the device 2.1 according to the invention consists of a coupling 5, which can be connected on the side facing away from the hand instrument 1.1 to a supply hose (not shown), via which media such as air, water, light, electrical energy and the like are provided from a dental station or other supply device for the operation of the hand instrument 1.1.
- the hand instrument 1.1 and device 2.1 can be axially plugged together in the direction of the axis 4.
- the turbine handpiece 3 has a handle section 6, which at its free end merges into a head section 7, in which a compressed air-operated turbine is arranged as a drive for a processing tool 8.
- the axially opposite end of the handle section 6 forms a connection area with a coupling recess 9 for detachable coupling to the device 2.1.
- the coupling recess 9 has a geometry which is adapted to the corresponding design of the device 2.1, i.e. the coupling recess 9 provides interfaces via which the media required for the operation of the hand instrument 1.1 are transferred from the device 2.1 into corresponding lines on the hand instrument 1.1. Of these lines, only the electrical lines 12, 13 are shown in Fig. 1, which lead from a lighting device 10 arranged in the transition area between the head section 7 and the handle section 6 with an LED as a light source to the coupling recess 9, where they form electrical counter-contacts 14, 15, which will be explained in more detail below.
- the device 2.1 has a substantially cylindrical base body 16, which has a first coupling device 17 for connecting the hand instrument 1 on its end face facing the hand instrument 1.1 and a further coupling device 18 for connecting to a supply hose on its opposite end face.
- the first coupling device 17 comprises an axially extending coupling pin 19 with a first longitudinal section 20 protruding from the front side and an adjoining further longitudinal section 21 of smaller diameter.
- Both longitudinal sections 20, 21 have a cross-section that is rotationally symmetrical to the axis 4, on the circumference of which ring webs 22 with circumferential ring seals are arranged.
- the further coupling device 18 for connecting a supply hose has, in addition to media lines 25 for air and water, two electrical plug contacts 26, 27 which, when a supply hose is connected, engage in corresponding sockets at the end of two electrical lines in the supply hose and via which electrical current is supplied.
- the supply hose is fixed to the device 2.1 via a fastening device in the area of the second coupling device 18, for example via a thread or a bayonet connection.
- the free end of the coupling pin 19 simultaneously forms an electrical socket 24 which is electrically connected to the electrical plug contacts 26, 27 of the further coupling device 18.
- the electrical socket serves to accommodate the lighting means 11, here a light-emitting diode (LED) as shown on a larger scale in Fig. 3.
- the illuminant 11 has a rod-shaped form with a cylindrical longitudinal section 28, inside which a light-emitting diode is arranged. At one end of the illuminant 11, a window 29 for the light exit is provided in the front side there. At the opposite end, a collar 30 is provided that runs around the circumference of the illuminant and a first electrical connection contact 31 and a second electrical connection contact 32 protrude axially from the front side there.
- the electrical connection contacts 31, 32 can also be arranged on the outer circumference of the illuminant 11, analogous to the illuminant 11' according to Fig. 4.
- first electrical contact 33.1 that runs around the outer circumference of the lighting device 11 and a second electrical contact 34.1 that runs around the outer circumference and is axially spaced from it and electrically insulated from it, both of which are designed as sliding contacts.
- the first electrical contact 33.1 is electrically connected to the first connection contact 31 and the second electrical contact 34.1 to the second connection contact 32.
- the lamp 11 with its connection contacts 31, 32 is inserted axially into the socket 24 and secured in position by means of a union nut 35 which can be screwed onto the coupling pin 19, the union nut 35 being supported on the collar 30.
- the coupling pin 19 is inserted into the coupling recess 9.
- the first counter contact 14.1 in the coupling recess 9 of the hand instrument 1.1 is electrically connected to the first contact 33.1 of the lamp 11 of the device 2.1 and the second counter contact 15.1 is connected to the second contact 34.1.
- Electrical energy which is conducted via a supply hose to the electrical plug contacts 26, 27, is supplied to the lamp 11 via the socket 24 and then via the first electrical contact 33.1 and second electrical contact 34.1 as well as the first counter-contact 14.1 and second counter-contact 15.1 in connection with the electrical lines 12, 13, finally to the lighting device 10.
- Fig. 4 shows a further embodiment of a lighting device 11' according to the invention.
- Differences essentially consist in the arrangement of the first electrical contact 33.1' and the second electrical contact 34.1', which are formed on the front side 45 of the lighting device 11' in a recess formed between the light exit window 29 and the outer circumference of the lighting device 11'.
- Ring surface is designed as sliding contacts concentrically encircling the light exit window 29, which interact with corresponding counter contacts on the hand instrument, for example with spring-loaded contact pins analogous to the counter contacts 14.5, 15.5 described in Fig. 11.
- connection contacts 31' and 32' which extend on the outer circumference of the lighting means 11' over spatially and electrically separate partial areas, which come into contact with the counter contacts present there when the lighting means 11' is inserted into the socket 24 of the device 2.1.
- Such a lighting means 11' is particularly suitable for recessed arrangement in a device according to the invention in which contact from the side would be problematic, for example in a device 2.5 as described in more detail in Figs. 11 and 12.
- Fig. 5 and 6 relate to a second embodiment of a device 2.2 according to the invention with associated hand instrument 1.2, which largely correspond to the first embodiment, so that reference is made to the description there for identical features. Differences exist essentially in the area of the arrangement of the first electrical contact 33.2 and second electrical contact 34.2, which in the device 2.2 are designed as sliding contacts running around the coupling pin 19, but are otherwise connected to the electrical plug contacts 26, 27 as in the first embodiment.
- the hand instrument 1.2 has, at the corresponding point of the coupling recess 9 with the contacts 33.2, 34.2, corresponding counter contacts 14.2, 15.2 which, as described in Figs. 1 and 2, lead electrical energy to the lighting device 10 after the hand instrument 1.2 and device 2.2 have been plugged together.
- a third embodiment of the device 2.3 according to the invention with associated hand instrument 1.3 is the subject of Fig. 7 and 8. To the extent that there are similarities, reference is again made to the description of the above-mentioned embodiments.
- the first electrical contact 33.3 and the second electrical contact 34.3 are arranged as point contact on an annular surface 36 orthogonal to the axis 4.
- the annular surface 36 is formed by a sudden reduction of the outer diameter in the transition from the base body 16 to the coupling pin 19 is formed.
- the associated hand instrument 1.3 has protruding spring-loaded pins on its front surface 37 facing the device 2.3, which form the first counter contact 14.3 and the second counter contact 15.3.
- the ring surface 36 and front surface 37 lie against one another, with the counter contacts 14.3, 15.3 connecting to the electrical contacts 33.3, 34.3.
- guide surfaces can be provided on the hand instrument 1.3, which interact with guide surfaces on the device 2.3 and center the hand instrument 1.3 and the device 2.3 when plugged together.
- the fourth embodiment of the invention according to Figs. 9 and 10 represents a combination of the first embodiment according to Figs. 1 and 2 with the third embodiment according to Figs. 7 and 8, the description of which applies accordingly.
- the first electrical contact 33.4 is formed by a circumferential sliding contact on the light source 11 and the second electrical contact 34.4 by a point contact on the ring surface 36 of the device 2.4.
- Contact with the hand instrument 1.4 is made via a first counter contact 14.4 in the coupling recess 9 and a second counter contact 15.4 in the form of a pin on the front surface 37 of the hand instrument 1.4.
- Fig. 11 to 14 relate to embodiments in which the devices 2.5 to 2.7 according to the invention are each formed by a drive unit 38, for example an electrically or compressed air-driven motor 39.
- the drive unit 38 is intended for coupling to a hand instrument 1.5 in the form of a rod-shaped handpiece 40 or angle piece.
- Such handpieces 40 are used in the medical, particularly dental, field, but also in industry and in the trades for processing workpieces of all kinds by cutting, grinding, milling, drilling, polishing and the like.
- the supply of media such as air, water, electrical energy, light and the like takes place via a supply hose 43 from a dental unit or other supply device.
- Fig. 11 shows such a handpiece 40, which is equipped with a device according to the invention
- a processing tool 8 which is rotatably mounted on the head section 7 is driven via the drive shaft 41 in the handpiece 40, which can be coupled to the motor 30 of the device 2.5.
- a lighting device 10 is arranged in the head section 7 to illuminate the work area, the lighting means of which in the present embodiment is formed by light-emitting diodes 44 attached to a circuit board 42.
- the hand instrument 1.5 has a coupling recess 9 which runs coaxially to the drive shaft 41.
- the detailed design of the device 2.5 in the form of a drive unit 38 is shown in Fig. 12.
- the device 2.5 has a cylindrical base body 16 in which, among other things, the motor 39 is housed.
- a hollow cylindrical coupling pin 19.5 protrudes from the front side facing the hand instrument 1.5, centrally and coaxially to the drive shaft 41, which receives part of the drive shaft of the motor 39 and can be inserted in a form-fitting manner into the coupling recess 9 in the hand instrument 1.5.
- the outer diameter of the coupling pin 19.5 is significantly smaller than the outer diameter of the base body 16, so that in the transition area an annular surface 36.5 is formed that runs orthogonally to the drive shaft 41.
- a light source 11' is arranged, the light of which can be coupled into a light guide depending on the type of hand instrument 1.5, 40.
- the light source 11' has a light-emitting diode according to Fig. 4, which is arranged countersunk opposite the annular surface 36.5 in the device 2.5. Only the front-side electrical contacts 33.5, 34.5 in the form of sliding contacts are accessible via the annular surface 36.5.
- connection of the lighting device 10 to the electrical contacts 33.5, 34.5 of the device 2.5 is made via spring-loaded counter contacts 14.5, 15.5 on the front face 37.5 of the hand instrument 1.5, 40, which are connected to the electrical contacts 33.5 and
- Fig. 13 discloses a sixth embodiment of a device 2.6 according to the invention, which differs from the previously described one by the arrangement of two spatially and electrically separated, point-shaped contacts 33.6 and 34.6 in the area of the ring surface 36.6, which interact with correspondingly arranged counter-contacts on the hand instrument.
- a light source 11 for supplying a light guide with light is present in the area of the ring surface 36.
- the electrical contacts 33.6 and 34.6 are thus implemented separately from the light source 11.
- a further variant of a device 2.7 according to the invention is the subject of Fig. 14.
- the electrical contacts 33.7 and 34.7 run as sliding contacts on the ring surface 36.7 on radially spaced, concentric circles around the coupling pin 19.7. From there, correspondingly arranged counter contacts on the hand instrument conduct the electrical energy to the lighting device 10.
- the counter contacts can, for example, be designed analogously to those according to Fig. 11.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023106239.5A DE102023106239A1 (de) | 2023-03-13 | 2023-03-13 | Vorrichtung zum lösbaren Verbinden mit einem medizinischen Handinstrument, vorzugsweise einem zahnmedizinischen Handinstrument, sowie Leuchtmittel zur Verwendung in einer solchen Vorrichtung |
| PCT/EP2024/056591 WO2024189045A1 (de) | 2023-03-13 | 2024-03-12 | Vorrichtung mit einem anschluss zum lösbaren verbinden mit einem handinstrument sowie leuchtmttel, geeignet zur verwendung in einer solchen vorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4680143A1 true EP4680143A1 (de) | 2026-01-21 |
Family
ID=90366674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24712423.3A Pending EP4680143A1 (de) | 2023-03-13 | 2024-03-12 | Vorrichtung mit einem anschluss zum lösbaren verbinden mit einem handinstrument sowie leuchtmttel, geeignet zur verwendung in einer solchen vorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4680143A1 (de) |
| DE (1) | DE102023106239A1 (de) |
| WO (1) | WO2024189045A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4681540A (en) * | 1984-11-09 | 1987-07-21 | Siemens Aktiengesellschaft | Dental handpiece arrangement |
| DE19963706C5 (de) * | 1999-12-29 | 2012-09-06 | Kaltenbach & Voigt Gmbh | Verfahren zur Herstellung und Montage eines Beleuchtungskörpers für ein medizinisches oder dentalmedizinisches Handstück |
| WO2003073952A1 (de) * | 2002-03-04 | 2003-09-12 | Sirona Dental Systems Gmbh | Zahnärztliches handinstrument |
| EP1982668B1 (de) | 2007-04-20 | 2011-06-22 | W & H Dentalwerk Bürmoos GmbH | Fluidbetriebenes medizinisches, insbesondere dentales, Handgriffelement |
| DE102011089252A1 (de) | 2011-12-20 | 2013-06-20 | Sirona Dental Systems Gmbh | Dentales Handstück zur Behandlung von Zähnen |
| EP2774571B1 (de) * | 2013-03-07 | 2018-07-11 | W & H Dentalwerk Bürmoos GmbH | Dynamoelektrischer Wandler und medizinische, insbesondere dentale, Vorrichtung mit einem dynamoelektrischen Wandler |
| EP2965709B1 (de) * | 2014-07-08 | 2017-12-27 | W & H Dentalwerk Bürmoos GmbH | Kupplungsvorrichtung zur lösbaren Verbindung eines medizinischen, insbesondere zahnärztlichen, Handstücks mit einer Antriebseinheit oder einem Versorgungsschlauch |
-
2023
- 2023-03-13 DE DE102023106239.5A patent/DE102023106239A1/de active Pending
-
2024
- 2024-03-12 WO PCT/EP2024/056591 patent/WO2024189045A1/de not_active Ceased
- 2024-03-12 EP EP24712423.3A patent/EP4680143A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024189045A1 (de) | 2024-09-19 |
| DE102023106239A1 (de) | 2024-09-19 |
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