JP2008093216A - Lighting system for dental care - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a conventional single-lamp illumination has an effect of producing no shadow at hand, however, when the head part of a practitioner such as a doctor and an assistant blocks off the light of the illuminating lamp near the light, provides no effect as the lighting system, and the practitioner has to frequently adjust the position of the illuminating lamp for acquiring an optimal illumination visual field. <P>SOLUTION: This lighting system for the dental care consists of a guide rail 1 attached to a ceiling, two trolleys 2 and 3 slidably attached to the guide rail, a main light 4 suspended from one of the trolleys and attached in such a manner as illuminating in an intended direction, an arm 3a attached to the other trolley orthogonally crossing with the guide rail, and two base lights 5 and 5' suspended from the both ends of the arm. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is an illuminating device that illuminates the mouth of a patient sitting or lying on a dental chair, and includes a main light that illuminates from the front of the patient's mouth and two base lights that illuminate from substantially above the mouth. The present invention relates to an illumination device for dental treatment that is prevented from being blocked by light from a patient's mouth by an assistant.

For example, Japanese Utility Model Publication No. 59-18562 discloses a technique for ensuring the illuminance in the oral cavity and the treatment site using a single light in conventional dental treatment. In this technique, a trolley is movably attached to a guide passage attached to a ceiling, and a hanging rod with a local illumination light attached to the lower end is attached to the trolley. The trolley is moved to illuminate the patient's mouth with light from the local illumination lamp. Further, when performing a surgical process including an implant, there are some which use an operate for surgery of medical equipment.
Japanese Utility Model Publication No.59-18562

  By the way, in the conventional one-lamp type illumination lamp described above, although there is a shadowless effect at hand, the heads of practitioners such as doctors and assistants block the light from the illumination lamp near the light. If this happens, the effect as a lighting device cannot be obtained. Therefore, there is a problem that the practitioner has to frequently perform the operation of adjusting the position of the illuminating lamp in order to obtain an optimal irradiation field of view.

  In addition, when performing treatment with Operate, a shadowless effect can be obtained, but unlike a dental lamp, the illumination pattern is bright enough to illuminate a wide area and is too dazzling for the patient. There is a problem that the patient has to feel uncomfortable because the patient has to be covered with the eyes or meditate with the patient.

  The present invention is intended to solve the above-mentioned problems, and the object of the present invention is to illuminate the mouth from the diagonally front left and right of the patient's face. It is an object of the present invention to provide a lighting device for dental practice in which a shadowless effect can be obtained by slidably attaching two base lights to the ceiling, and once the setting is made, there is no need to frequently change the position of the three lights.

  The illumination device for dental treatment of the present invention achieves the above-mentioned object, and means of claim 1 includes a guide rail attached to the ceiling, two trolleys slidably attached to the guide rail, A main light that is suspended from one of the trolleys and is attached so as to be able to irradiate in a desired direction, an arm that is attached to the other trolley so as to be orthogonal to the guide rail, and suspended from both ends of the arm. The main light is illuminated obliquely from the front of the patient's mouth, and the two base lights are illuminated obliquely from the left and right of the patient's mouth so that a shadowless effect can be obtained. It is characterized by that.

  The means of claim 2 is the means of claim 1, wherein the main light and the base light are turned on / off and the illuminance is adjusted by a non-contact switch such as a remote controller and a touchless switch, It is performed by any one of the contact switches.

  The means of claim 3 is the means of claim 1, wherein the focal length of the base light is set to about twice the focal length of the main light with respect to the focal length of the main light irradiating the patient's mouth. It is characterized by.

  According to a fourth aspect of the present invention, in the above-mentioned means of the first aspect, power is supplied to the main light and the base light, and a cable for performing lighting on / off control and illuminance adjustment is provided in the guide rail. The cable tensioner device comprising a constant load spring and a pulley prevents slack in the guide rail and prevents the cables from interfering with each other.

  As described above, the present invention illuminates the patient's mouth from the front by one main light, and illuminates the patient's mouth from the left and right by the two base lights. A shadowless effect is obtained, and once set, there is no need to frequently change the light position.

  In addition, the main light and the base light can be turned on / off and the illuminance can be adjusted by using a remote controller and / or touchless switch without operating the switch attached to the light as before. Therefore, it becomes possible to perform those operations easily and hygienically, and it is possible to concentrate on treatment with high hygiene.

  Further, the focal length of the base light is set to about twice the focal length of the main light with respect to the focal length of the main light irradiated to the patient's mouth. Interference due to the light does not easily occur, and it is easy to obtain a shadowless effect. Therefore, the illuminance of the mouth by the main light and the base light can be increased, and thus the brightness during the treatment can be sufficiently obtained.

  In addition, the cable that supplies power to the main light and the base light, controls the lighting on / off of the light, and adjusts the illuminance, does not sag in the guide rail due to the cable tensioner device consisting of a constant load spring and pulley. Since the power cables for the main light and the base light are slack and interfere with each other, the movement of the trolley caused by the slack of the power cables is stopped by the cables or the movement is slowed down. The effect is that the cables do not interfere with each other.

  According to the present invention, a main light that illuminates the patient's mouth from the front and a base light that illuminates the mouth from the upper left and right directions are movable with respect to the ceiling.

Hereinafter, a lighting device for dental practice according to the present invention will be described with reference to the drawings.
1 and 2 show the overall structure, and a slide rail 1 to be described in detail later is attached to a ceiling b on which a dental treatment chair a is installed, and first and second trolleys 2 and 3 are attached to the slide rail 1. It is slidably mounted. A main light 4, which is a known dental dental light, is attached to the first trolley 2 in a suspended state. The main light 4 is a hanging rod 2a that can be displaced in any direction by at least three joints.

  The second trolley 3 is provided with an arm 3a in a direction perpendicular to the guide rail 1, and base lights 5 and 5 'are attached to both ends of the arm 3a in a suspended state. The base lights 5 and 5 'are also attached to the arm 3a so that they can be slightly rotated and lowered. The main light 4 and the base lights 5, 5 'are provided with handles for changing the irradiation direction by hand.

Next, the detail of the support part of the trolleys 2 and 3 with respect to the guide rail 1 is demonstrated with FIG. 2, FIG.
The guide rail 1 is fixed to the ceiling by a mounting member 1a having a U-shaped side surface. A guide plate 1b is integrally formed on both inner side surfaces of the mounting member 1a. The trolley 2 (hereinafter, the trolley 3 has the same configuration as the trolley 2 and will not be described) is formed in a U shape narrower than the width of the opening of the mounting member 1a, and rollers 2c and 2d are attached to both end faces. A mounting bracket 2b is integrally formed. A large roller 2c and a small roller 2d are pivotally supported at both ends of the mounting bracket 3c with the guide plate 1b interposed therebetween.

  Therefore, the trolley 2 can be smoothly moved by the rollers 2c and 2d attached with the guide plate 1b interposed therebetween. The trolleys 2 and 3 incorporate a power supply circuit for turning on the main light 4 and the base light 5 and a circuit 2 e for controlling and controlling the illuminance of the lights 4 and 5. The circuit 2e is connected to a control box 6 attached to one end of the guide rail 2 by a cable 6a (see FIGS. 5 and 6) such as a power cable for a power circuit and a signal cable for a control circuit for adjusting illuminance. Has been.

  Since the cable 6a is connected in the trolleys 2 and 3 that move on the guide rail 1 configured as described above, the cables 6a are pulled or loosened by the movement of the trolleys 2 and 3. Therefore, a tensioner device 7 is attached in the guide rail 1 in order to prevent the cable 6a from being pulled or loosened. The structure will be described below with reference to FIGS.

  The guide rail 1 is attached to each of the trolleys 2 and 3, a constant load spring 7 a having one end fixed to the inner surface of the guide rail 1, and the cable 6 a that is movably attached in the guide rail 1 is wound around the guide rail 1. Cable roller 7b, and a spring roller 7c that moves integrally with the cable roller 7b and on which the other end of the constant load spring 7a is wound. One end of the cable 6 a wound around the cable roller 7 b is connected to the control circuit of the control box 6, and the other end is connected to each light through the trolley 2 or 3. 7d in the figure is a stopper for stopping the movement of the trolley 2 or 3 and the movement of the spring roller 7c.

  In the tensioner device 7 configured as described above, when one end of the cable 6a is connected to the trolley 2 of the main light 4 and the other end is connected to the control box 6 in FIG. The cable 6a on the side connected to the trolley 2 is pulled leftward. Then, the constant load panel 7a wound around the spring roller 7c is pulled out, but the cable 6a is not slackened because a force that pulls the cable roller 7b in the right direction acts by the spring force. On the other hand, when the trolley 2 moves to the right, the spring roller 2c rotates and moves while entraining the constant load spring 7a. Therefore, the cable 6a is pulled to the right, so that the cable 6a is not loosened. .

Next, the illumination positions of the main light 4 and the base lights 5 and 5 ′ during treatment of the patient will be described with reference to FIGS.
When the patient is treated in a supine state, the main light 4 is moved to a position obliquely forward of the mouth of the patient who is supine, and the angle of the light is adjusted to be obliquely forward of the patient's mouth. Illuminate from above. Further, the base lights 5 and 5 'are moved to a position just above the patient's face, and illuminated from diagonally above both sides of the patient's mouth. Such an illumination position can prevent the body of the doctor or assistant from blocking the illumination light during treatment.

  Since the main light 4 is located at a position close to the patient's mouth, the focal length is short, but the base lights 5 and 5 'are illuminated from a position close to the ceiling away from the mouth. , 5 'has a focal length that is approximately twice that of the main light 4, and the experiment revealed that the total illuminance from all the lights is maximized.

  Table 1 shows the layout of the main light 4 and the base lights 5, 5 'during the upper jaw treatment and the lower jaw treatment. In Table 1, at 9 o'clock, 10 o'clock ... 3 o'clock in the Gr position, the position of the patient and the doctor as viewed from above is indicated by the position of the short hand of the clock, It shows the lighting and extinguishing of each lamp that is easy to do.

  Next, a circuit block for turning on / off the main lamp 4 and the base lamps 5 and 5 ′ and illuminance control, and an operation description by the circuit block will be described. FIG. 7 is a circuit block diagram, FIG. 8 is a flowchart for explaining an operation by a touchless switch (non-contact switch), and FIG. 9 is a flowchart for explaining an operation by a remote controller.

  In the circuit block of FIG. 7, 81 is a non-contact switch such as a touchless switch or a switch such as a normal contact type switch, 82 is a remote controller, and is a light on / off switch, illumination switch, interlock switch, dimming Various push button type switches such as UP switch and dimming DOWN switch are equipped. Reference numeral 83 denotes a microcomputer signal processing circuit that performs the operations of the flowcharts shown in FIGS. 8 and 9, which will be described later. Reference numeral 84 denotes an output adjustment circuit, which is a voltage switching circuit 84a by switching a transformer tap, a voltage control circuit 84b by a switching power supply, and a relay. An interlock / non-interlock switching circuit 84c for the main light 4 and the base light 5 is performed. A signal from the remote controller, for example, infrared light is received by a receiver provided in the control box 6, and an optical switch as a non-contact switch is also provided in the control box 6, such as a hand. The switch acts as a switch by reflecting or blocking light.

  Next, the operation of the circuit block will be described with reference to FIG. FIG. 8 shows an operation by a switch (step S1) such as a non-contact switch such as a touchless switch or a normal contact type switch. The processing circuit 83 operates the switch (holds a hand in the case of a non-contact switch). Whether or not it has been pressed in the case of a contact switch) (step S2). If it is determined that the switch has been operated, the operation is performed for a predetermined time or more. It is monitored whether or not (step S3). Here, if the operation has not been operated for a certain period of time, it is determined whether or not the base light interlocking mode is set (step S5). The main light 4 is turned on (step S5). If the main light 4 is turned on, the main light 4 is turned off (step S6), and the operation ends.

  If it is determined in step S6 that the main lamp 4 is turned off, the main lamp 4 is turned on with a preset illuminance (step S7), and the operation ends. If it is determined in step S4 that the base light 5 or 5 'interlocking mode is selected, it is determined whether or not the main light 4 is turned off (step S8). The base lights 5 and 5 'are turned off (step S9), and the operation ends. If it is determined in step S8 that the main lamp 4 is turned off, the main light 4 and the base lights 5 and 5 'are turned on (step S10), and the process ends.

  If it is determined in step S3 that the switch has been operated for a predetermined time or longer, it is determined whether or not the main light 4 is in the composite mode (step S). This state is maintained, the base lamp is turned off (step S12), and the operation ends. On the other hand, if it is determined that the mode is the composite mode, the main light 4 is turned on with the illuminance setting before the composite mode, the base lights 5 and 5 'are kept on with the current illuminance (step S13), and the operation ends.

Next, control by remote control will be described with reference to the flowchart of FIG.
In an operation (step S21) by remote control (hereinafter simply referred to as a remote controller), the processing circuit 83 monitors whether or not the interlock changeover switch 82, which is one of the switches provided in the remote controller, has been pressed (step S22). If it is determined that the interlock changeover switch 82 is not pressed, it is next monitored whether or not the illuminance changeover switch 83, which is one of the remote control switches, is pressed (switch 23), and the illuminance, which is one of the remote control switches. If it is determined that the changeover switch 83 has not been pressed, it is monitored whether or not the dimming UP switch 82 has been pressed (step S24). If it is determined that the dimming UP switch 82 has not been pressed, the remote control switch It is monitored whether or not the dimming DOWN switch 83, which is one of the above, is pressed (step S25). All of the operation when it is determined that 83 has not been pressed to the end.

  If it is determined in step S25 that the dimming DOWN switch 83 has been pressed, it is monitored whether or not the current illumination setting is at the lower limit (step S26). If it is determined, the illuminance is decreased (step S27), and the operation ends.

  If it is determined in step S24 that the dimming UP switch has been pressed, it is monitored whether or not the current illuminance setting is at the upper limit (step S28). If not, the illuminance is increased (step S29) and the operation ends.

  Further, if it is determined in step S23 that the illuminance changeover switch 82 has been pressed, it is monitored whether or not the same illuminance changeover switch 82 as the current illuminance setting has been pressed (step S30). Then, the illumination setting is changed to the pressed illuminance setting (step S31). If it is determined in step S22 that the interlock switching step S has been pressed, it is monitored whether the main light 4 and the base lights 5 and 5 'are in the interlock mode (step S32). Then, the main light 4 and the base lights 5 and 5 'are set to the interlocking mode (step S33). On the other hand, if it is determined that the interlock mode is in effect, the main light 4 and the base lights 5, 5 'are set to the non-interlock mode, and the operation ends.

It is a side view which shows the state which illuminates a patient with the illuminating device for dental treatment which concerns on this invention. It is a front view same as the above. It is a perspective view which shows the suspended state of the trolley with respect to a guide rail. It is a side view same as the above. It is a perspective view of a cable tensioner device. It is a partially expanded perspective view same as the above. It is a circuit block diagram for controlling main light and base light. It is a flowchart which shows the operation | movement which performs control by switch operation in a circuit same as the above. It is a flowchart which shows the operation | movement which performs control by remote control. It is a table | surface which shows the lighting state of the lamp | ramp in the treatment position of the doctor with respect to a patient.

Explanation of symbols

1 Guide rail 2, 3 Trolley 3a Arm 4 Main light 5 Base light 6 Control box 7 Cable tensioner 7a Constant load spring 7c Roller

Claims (4)

A guide rail mounted on the ceiling;
Two trolleys slidably attached to the guide rail;
A main light hanging from one of the trolleys and mounted so that it can be illuminated in a desired direction;
An arm attached to the other trolley so as to be orthogonal to the guide rail;
Consists of two base lights hanging from both ends of the arm,
The main light is applied obliquely from the front of the patient's mouth, and the two base lights are applied obliquely from the left and right of the patient's mouth so as to obtain a shadowless effect. Lighting device.   2. The main light and the base light are turned on / off and the illuminance is adjusted by a non-contact switch such as a remote controller and a touchless switch, or by a remote controller and a non-contact switch. The illumination device for dental treatment as described.   The dental clinical illumination according to claim 1, wherein the focal length of the base light is set to be approximately twice the focal length of the main light with respect to the focal length of the main light that irradiates the patient's mouth. apparatus.   A cable for supplying power to the main light and the base light, and for controlling the blinking of the light and adjusting the illuminance is loosened in the guide rail by a cable tensioner device comprising a constant load spring and a pulley in the guide rail. 2. The dental examination lighting device according to claim 1, wherein the cables are prevented from occurring and the mutual cables do not interfere with each other.

Images