DE7403198U1 - Electronic X-ray switching device for dental purposes - Google Patents

Description

The innovation concerns an electronic X-ray switching device for dental purposes with an x-ray timer as well a display of the setting angle to the horizontal of the X-ray head.

When taking x-rays, it is necessary to use the x-ray head to create an image of the tooth to be recorded align. For this purpose, the setting of the X-ray head for each tooth must be at a certain angle to the horizontal respectively. While the angle setting to the vertical, determined by the type of device, is at the discretion of the Is left at the operator's disposal, the setting angle is to the horizontal, which is assigned to each tooth, and is set on the scale of the X-ray machine. In order to get good shots every single one of them has to Tooth will be irradiated with a certain dose of radiation, apart from corrections for film sensitivity and stature of the patient is assigned to each tooth with a fixed value.

The known X-ray devices of this type have to set the X-ray dose for the selection of the Zahnes a step switch, the button mark on the marked in a radial arrangement around the setting knob Zahn indicates, while the angle to be set to the horizontal appears in a window on the scale.

The disadvantage of this type of switching is that such tap changers are susceptible to repair, caused by the moving parts and the confusion of the scale.

7403198 08/24/78

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The object of the invention is to reduce the susceptibility to repairs to a minimum and to reduce the risk of operating errors, such as those with confusing Design of the control panel of such devices occur.

This object is achieved with an electronic time switch device which has the features of claim 1). To improve hygiene, the buttons can be designed as sensor buttons. Also carries a light up a marking of an actuated key and the associated data by means of e.g. a semiconductor diode or a lamp this helps to mark the preselected setting before the irradiation is triggered by pressing a release button will. The setting is retained for repeated triggering until a new setting is made. Further Control devices for the film speed and the adaptation of the radiation dose to a different one Patient stature, e.g. for children and adults, are provided.

The advantages of the invention are that there are no moving parts that negatively affect the service life and that by mapping the whole set of teeth in the form of those arranged in the natural order Switch compared to the known types is a significant improvement in the overview. When using Sensor buttons are also hygienically improved because they are available on other switches Slits and crevices are no longer available, and bacteria are no longer able to settle in them.

7403198 2t.0a78

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An exemplary embodiment is shown in the drawing and described below:

FIG. 1 shows the button plate of the electronic switching device (Top view)

FIG. 2 shows the front view of the device

In the plan view FIG. 1 is a version of the push button plate (1) shown. A sensor button (2) serving as a power switch supplies the device with power, desser. To be available is indicated by the control lamp (3). The optional Pressing the sensor button (4) enables manual operation Preselection of the X-ray dose in connection with the setting lever (5), which allows a time setting of O, O6 to 6 seconds allow. The radiation is caused by the Sensor button (6) triggered. An operating lamp (7) is lit for the duration of the irradiation. Will be a If automatic preselection is desired, one of the sensor keys (5O - 54) is selected instead of the sensor key (4), with which the exposure time is adapted to the sensitivity of the film used. After adjusting the exposure time One of the sensor keys (11 - 48) can now be selected on the patient's keyboard with lever (8), which cause the set data to light up. The irradiation is also carried out during the automatic process actuation of button (5) triggered. The lamp (7) is illuminated again for the duration of the irradiation.

The sensor keys (2), (4), (6), (5O - 54) and (11 - 48) are designed as illuminated buttons.

Claims (9)

ί · · at ·· * 4 RITTER AG, Killisfeldstrasse 62-64, 750O Karlsruhe Electronic X-ray switching device for dental purposes 1) Electronic trained for dental x-ray machines Time switch device with a button plate, images of the teeth on it and each image a tooth associated specification of the setting angle of the center ray relative to the horizontal, as well as with means for automatic preselection of the radiation dose, characterized in that the imaging of the teeth on the feeler plate by developing the upper and lower jaw on two horizontal, parallel and in full length opposite straight lines is shown on the button plate and that the Means for automatically preselecting the radiation dose are represented by each image of a tooth assigned sensor key (11 - 48) that preselects the standardized exposure time for the associated tooth an operating element (8), with which a change in the preselected exposure time by a certain one, taking into account the normal deviation of the patient's stature percentage can be brought about and through sensor keys {5O - 54), with which a change of the preselected Exposure time can be brought about with regard to a different sensitivity of the X-ray film. / 2 S 7403198 08/24/78 2) Time switch according to claim 1, characterized in that, in addition to the automatically preselecting the exposure time Means actuating means (4, 5) for manual preselection of the exposure time are available. 3) time switch. according to claim 1, characterized in that an actuating means which paralyzes the function of the means for automatic preselection of the exposure time (4) for manual preselection of the exposure time is provided. 4) time switch device according to claim 2, characterized in that as a means for triggering the irradiation both at automatic as well as manual preselection of the exposure time only a single control element (6) is provided. 5) time switch according to claim 4, characterized in that the control element (6 ^ is a sensor key. 6) time switch according to claim 1, characterized in that Discrete light sources are arranged behind the button plate (1) are each one with one of the sensor keys (11-48), the associated image of a tooth and the associated indication of the setting angle provided area of the button plate (1) in the actuated state of the respective Illuminate the sensor button (11 - 48). 7403198 08/24/78 7) time switch according to claim 1, characterized in that the sensor buttons (11 - 48) are designed as illuminated buttons. 8) Time switch according to claim 1, characterized in that the actuating means (4) also has a light button trained sensor key is. 9) time switch device according to claim 1, characterized in that the sensor buttons (50 - 54) are also designed as illuminated buttons. 1O) time switch according to claim 1, characterized in that the power switch (2) is also a sensor button designed as an illuminated button.