JPH05111497A - Dental operating hand piece provided with image recording device - Google Patents

Abstract

PURPOSE: To keep an image recording device in an out-of-the-way position and to documentate a treatment process by use of a handpiece which corresponds to a universal dental instrument in terms of size, shape, and handling by incorporating an image conductor and an optical waveguide into the handpiece. CONSTITUTION: An image conductor 3 and an optical waveguide 4 are incorporated into a dental spray type handpiece 1. The handpiece 1 is provided with a grip part 8, inside which a light source 7 rotatable about an axis and oriented to the optical wave guide 4, an objective lens 9, and a video camera 10 are mounted. A light deflecting device 5 for the image conductor 3 and/or for the optical waveguide 4 is placed at the front end. A hose connection 11 is provided at the other end of the grip part 8 to serve to connect a hose 12. Since conduits 15, 16 for air and water, respectively, are placed parallel to the image conductor 3 and the optical waveguide 4, all the conduits and conductors are stored in a space-saving manner. A monitor and a storage part equipped with an insturment can be functionally placed on a treatment chair.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental work handpiece having an image recording device, for example a video signal, consisting of an image conductor and an optical waveguide.

[0002]

2. Description of the Prior Art Such a working handpiece is known from DE-A-2208902. In this case, both the image and light conductors are attached to the handpiece on the outside. as a result,
Various drawbacks result. That is, such a handpiece is bulky due to the conductor attached to the outside and the connected hose, which makes handling extremely troublesome and unsanitary. Leads for the image conductor and the light guide may be housed in the hose. This lead wire is configured, for example, as a glass fiber bundle. Such glass fiber bundles are likewise bulky and almost inflexible, that is to say at risk of breaking, which makes them even more difficult to handle. In such a configuration, since the image recording device must be arranged outside, the image and the supplied light rays are deteriorated due to the long transmission distance. Furthermore, if it is not desired to deteriorate the transmission output, the conductor and the hose must be removed for maintenance, cleaning and disinfection. However, removing conductors and hoses is also cumbersome.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to improve a handpiece for transmitting such an intraoral image so that the image recording device does not get in the way and is versatile in terms of size, shape and handling. The object is to provide a handpiece that corresponds to a dental instrument.

[0004]

In order to solve this problem, in the structure of the present invention, the image conductor and the optical waveguide are incorporated in the handpiece.

[0005]

As described above, the advantage of the present invention is that, in the handpiece having the image recording device built therein, the above-mentioned drawbacks are eliminated, and it becomes possible to directly inspect a treatment space, such as a root canal, which is difficult to reach in the past. Improved diagnostics and communication between the dentist and the patient, allowing individual placement on the dentist's or nurse's side, resulting in a minimum power requirement and improved image quality based on the reduced lead distance. It is ensured that it can be integrated into a general-purpose instrument holding device and instrument accommodating device as an additional instrument, ensuring hygienic maintenance, cleaning and disinfection, and providing an independent energy supply. , The documentation of the treatment process will be carried out.

No additional optical equipment, such as a reflector, is required. Based on direct inspection by indirect image formation,
Ergonomic work is possible and hygienic work is also possible due to the increased distance between the therapist and the spraying point.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 shows a dental handpiece. This handpiece has on its head 2 a drive part, for example a turbine with a tool 2a inserted. Reference numeral 6 is an exit of the image conductor 3 and the optical waveguide 4.

FIG. 2 also shows a dental spray-type handpiece with the reference numeral 1. This handpiece has an image conductor 3 and an optical waveguide 4 therein. As shown in both examples, the handpiece 1 is provided with a grip part 8 which is rotatable inside it about an axis A and is directed towards the light guide 4. Light source 7, objective lens 9, and video camera 1
It has 0 and. At the front end is arranged a light redirecting device 5 for the image conductor and / or the light guide, which light redirecting device may be a prism or an angle mirror. At the other end of the grip portion 8, the hose connecting portion 1
1 is provided and this hose connection serves for the connection of the hose 12. The hose connection has an energy supply, optionally a spray-type handpiece air and water conduit, and an image lead.

As shown in FIGS. 3 and 4, spray handpieces include conduits 15, 1 for air and water.
Since 6 is arranged parallel to the image conductor 3 and the light guide 4, all conduits and conductors are stored in a space-saving manner. The front lens 1 is provided in the middle of the image conductor 3.
3 and the scattered light diaphragm 14 may be incorporated. The gripping part 8 is rotatable with respect to the handpiece 1 and possibly also the hose connection 11, so that its position can be adapted to the space situation during treatment. The grip portion may be separable from the handpiece 1 and the hose connecting portion 11. This allows
A versatile use is possible by exchanging individual parts, which preferably have the same dimensions, as well as hygienic maintenance, cleaning and disinfection.

In the block circuit diagram shown in FIG. 5, reference numeral 20 denotes a light source 7, an objective lens 9, and a video camera 10.
And the control part 23 for the required cold light (Kaltricht). Reference numeral 21 denotes a connected device, that is, a connection portion on the hose side provided with a printer 25, a character generator 26, a monitor 27, a recorder 28, an image memory 29, and another signal processing system selectively or in combination with each other. is there. The control unit to which it belongs is provided with reference numeral 24. For use in a spray-type handpiece, reference numeral 30 designates a control device for the spray media air and water, which spray media is supplied via conduits 15, 16. Reference numeral 22 designates a handpiece including the image conductor 3, the optical waveguide 4, and the blowing conduits 15 and 16.

FIG. 6 shows the dental unit 35 in its installed state according to the invention. A monitor 27 is mounted on the unit. The image controller is shown at 38, the storage controller is shown at 39, and the media control and supply device is shown at 40. 36
Is an instrument storage for the instrument 37, one of which corresponds to the invention. Reference numeral 41 indicates a cutting position for the connected instruments 25-29. Code 4
2 indicates an operating element, for example a foot starter.

FIG. 7 shows how the monitor 27 and the instrument housing 36 with the instrument 37 can be spatially assigned to the treatment chair 45, in this case the monitor 27.
Is mounted in the instrument storage section 36.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the invention in a handpiece with a tool.

FIG. 2 is a vertical cross-sectional view of another embodiment of the spray type handpiece.

FIG. 3 is a longitudinal sectional view showing a part of FIG. 2 in an enlarged manner.

FIG. 4 is a sectional view taken along line IIIa-IIIa in FIG.

FIG. 5 is a block circuit diagram of the present invention with connected instruments.

FIG. 6 is a block circuit diagram showing an assembled state according to the present invention in a dental unit.

FIG. 7 is a diagram showing a dental treatment space together with the spatial correspondence of the present invention.

[Explanation of symbols]

 1 Handpiece 2 Head 2a Tool 3 Image conductor 4 Optical waveguide 5 Light redirecting device 6 Exit 7 Light source 8 Grip part 9 Objective lens 10 Video camera 11 Hose connection 12 Hose 13 Front lens 14 Scattering diaphragm 15, 16 Conduit 21 Connection unit 22 Handpiece 23, 24 Control device 25 Printer 26 Character generator 27 Monitor 28 Recorder 29 Image memory 30 Control device 35 Unit 36 Instrument storage unit 37 Instrument 38 Image control device 39 Storage control device 40 Media control device 41 Cross-section position 42 Operating element 45 Treatment chair

Claims (12)

[Claims] 1. A dental work handpiece comprising an image recording device comprising an image conductor and an optical waveguide, wherein the image conductor (3) and the optical waveguide (4) are incorporated in the handpiece (1). A dental work handpiece with an image recording device, characterized in that 2. A handpiece according to claim 1, wherein the handpiece (1) is provided with a grip portion (8), and the hose connection (11) is attached to the grip portion. 3. Handpiece according to claim 1 or 2, characterized in that a light redirecting device (5) is mounted at the outlet (6) of the image conductor (3) and / or the light guide (4). 4. The handpiece according to claim 3, wherein the light redirecting device (5) is a prism or an angle mirror. 5. The handpiece according to claim 3, wherein the light diverting is performed through an optical waveguide element such as a glass fiber bundle. 6. A rotatable light source (7) is arranged in the grip portion (8) in alignment with the light guide (4). Handpiece. 7. A light source (7) on the grip portion (8).
7. The handpiece according to claim 6, further comprising a focusing device (9) and a camera such as a video camera (10). 8. The gripping part (8) is rotatable with respect to the handpiece (1) and optionally the hose connection (11). Handpiece. 9. A handpiece according to any one of claims 2 to 8, wherein the grip portion (8) is separable from the handpiece (1) and the hose connection (11). 10. The hose connection (11) is connected with a hose (12) used for supplying energy to the tool for the light beam and a conductor for the image. The handpiece according to any one of claims. 11. A light source is arranged on the hose connection (11) or the hose (12).
The handpiece according to item 2, 3, 4, 5, 8, 9, or 10. 12. The method according to claim 10, wherein the conductor leads to a signal processing device such as a printer (25), a document generator (26), a monitor (27), a recorder (28) or an image memory (29). 11. The handpiece according to item 11.