JP2017063009A - Medical shadowless lighting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical shadowless lighting tool that in surgery or treatment, does not interfere with the surgery or the like, can sufficiently secure illumination intensity of irradiation light, and enables adjustment.SOLUTION: A medical shadowless lighting tool is constituted by disposing a plurality of irradiation units 3 in an irradiation body 1, disposing a plurality of LED units 4 in the irradiation unit 3, and disposing an LED chip 5 capable of emitting primary colors: red(R), green(G), blue(B) in the LED unit 4. In the LED unit 4, the LED chip 5 capable of emitting primary colors: red(R), green(G), blue(B), and an LED chip 6 capable of emitting white light (W) may be disposed simultaneously. Or, an irradiation angle may change so that a peripheral part irradiation unit 53B can be inclined at a predetermined angle to a center part irradiation unit 53A.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a medical surgical light using an LED as a light source.

During surgery or treatment, the surgeon's fingers, surgical tools or treatment tools used may cause shadows on the patient's surgery or treatment site, and the doctor will not interfere with the surgery or treatment. In this case, a shadowless lamp that does not cause a shadow is used as a lighting device.
Traditionally, incandescent light bulbs, krypton light bulbs, halogen light bulbs, etc. have been often used as light sources for surgical lights. However, using a light source with high fever increases body temperature and increases the burden on the patient. There was a problem that the parts and the like were dried early and hindered surgery.

  For this reason, in recent years, LEDs that can be expected to reduce heat generation have come to be used as light sources for surgical lamps, and are described in Patent Document 1 as such medical surgical lamps. Is known.

JP 2006-156074 A

However, since the medical surgical light that employs conventional LEDs uses a white LED that emits light, when the doctor performs an operation or treatment, the light applied to the surgical tool is irregularly reflected. It was difficult to see the affected area, which could hinder surgery.

In addition, due to bleeding in the affected area, or due to differences in eye pigments depending on race, the affected area or the like may be slightly difficult to see when a doctor performs an operation or treatment.
Furthermore, depending on the color temperature of the white LED, the doctor may not be calm and the patient may feel uneasy.

In addition, a medical surgical light that employs a conventional LED has an insufficient illuminance of light for irradiating an affected area or the like when a doctor performs an operation or treatment, and it is sometimes difficult to perform an operation or the like.

Furthermore, when performing surgery, when the surface layer of the affected area is incised, the illuminance need not be so high, but when incising the inside of the affected area, a sufficiently high illuminance is necessary, The medical surgical light of the company could not adjust the illuminance other than adjusting the luminous intensity.

The present invention has been made in view of such conventional problems, and when performing surgery or treatment, the light applied to the surgical tool or the like is irregularly reflected, making it difficult to see the affected area, etc. Medical care that does not make the affected area somewhat difficult to see due to bleeding in the affected area, differences in eye pigments, etc., and that the doctor lacks calmness and does not cause the patient to feel anxious The purpose is to provide surgical light.

In addition, when a doctor performs surgery or treatment, the illuminance of the light that irradiates the affected area can be sufficiently secured, making the surgery easier, and wasteful power in accordance with the situation at the time of surgery or treatment. It is another object of the present invention to provide a medical surgical light capable of appropriately adjusting the illuminance of light irradiating an affected area or the like without consuming it.

In order to achieve the above object, the medical surgical lamp of the present invention comprises a plurality of irradiation units disposed on an irradiation body, and LED units disposed within the irradiation unit. The LED chip which emits three primary colors of red (R), green (G), and blue (B) is disposed.

In the LED unit, LED chips that emit the three primary colors of red (R), green (G), and blue (B) may be arranged at appropriate intervals in the circumferential direction.

In the LED unit, an LED chip that emits three primary colors of red (R), green (G), and blue (B) and an LED chip that emits white (W) may be disposed at the same time.

Further, the medical surgical lamp of the present invention comprises an irradiation body composed of a central irradiation unit disposed in the central portion and a plurality of peripheral irradiation units disposed in the peripheral portion, Thus, the peripheral irradiation unit can be tilted by a predetermined angle.

Here, it is preferable that the peripheral part irradiation units are arranged at equal intervals around the central part irradiation unit.

The medical surgical light of the present invention has an LED unit that emits three primary colors of red (R), green (G), and blue (B) in an LED unit disposed in an irradiation unit. When the treatment is performed, the light irradiated to the surgical tool or the like is irregularly reflected, making it difficult to see the affected part and the like, so that the operation is not hindered.

In addition, when performing surgery or treatment, bleeding in the affected area, etc., and differences in eye pigments do not make the affected area somewhat difficult to see, and the doctor lacks calmness and causes the patient to feel uneasy. There is nothing.

In addition, since the surgical operating lamp of the present invention allows the peripheral irradiation unit to be tilted at a predetermined angle with respect to the central irradiation unit, the irradiation angle of the peripheral irradiation unit is changed to condense, and the affected area etc. Sufficient illuminance of the irradiated light can be secured, and surgery and the like can be easily performed.

Furthermore, since the irradiation angle of the peripheral irradiation unit can be changed and the illuminance of the light irradiating the affected area can be appropriately adjusted in accordance with the situation at the time of surgery or treatment, useless power consumption is eliminated.

It is a perspective view of the floor-mounted medical surgical light of the present invention. 1 is a perspective view of a ceiling-mounted medical surgical lamp of the present invention. It is a front view of the irradiation body of the medical surgical light of this invention. It is a front view of the irradiation unit of the medical surgical light of the present invention. It is a front view of the LED unit of the medical surgical light of the present invention. 1 is a perspective view of a ceiling-mounted medical surgical lamp of the present invention. It is a front view of the irradiation body of the medical surgical light shown in FIG. FIG. 7 is an explanatory diagram of a simple model for evaluating the illuminance of a target irradiation surface when the peripheral irradiation unit is tilted by a predetermined angle in the medical surgical light shown in FIG. 6. FIG. 7 is a light distribution diagram showing a light distribution pattern of the central irradiation unit and the peripheral irradiation unit in the medical surgical light shown in FIG. 6, where (A) is a wide-angle light distribution pattern and (B) is a narrow-angle light distribution. It is a light distribution diagram which shows a pattern. It is explanatory drawing which shows the case where a peripheral part irradiation unit is not tilted with respect to a center part irradiation body, and a light distribution pattern is made into wide angle light distribution. In the case shown in FIG. 10, it is an illumination distribution map which shows the result of having simulated the illumination intensity of the irradiation surface made into object. It is explanatory drawing which shows the case where a peripheral part irradiation unit is made to incline a predetermined angle with respect to a center part irradiation body, and a light distribution pattern is made into wide angle light distribution. In the case shown in FIG. 12, it is an illumination distribution map which shows the result of having simulated the illumination intensity of the irradiation surface made into object. It is explanatory drawing which shows the case where a peripheral part irradiation unit is made to incline a predetermined angle with respect to a center part irradiation body, and a light distribution pattern is made into a narrow angle light distribution. It is an illuminance distribution map which shows the result of having simulated the illuminance of the irradiation surface made into the object in the case shown in FIG.

Hereinafter, the medical surgical lamp of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a floor-mounted medical surgical lamp of the present invention, and FIG. 2 is a perspective view of a ceiling-mounted medical surgical lamp of the present invention.

The medical surgical light of the present invention can be applied to a floor-mounted medical surgical light 11 as shown in FIG.
This medical surgical light 11 has a support column 14 erected from a leg 13 having wheels 12, 12,..., And a support 15 is connected to the upper end of the support column 14 so as to be rotatable in the vertical direction. The arm 16 is connected to the tip of the support 15 so as to be able to rotate 360 °, and the irradiation body 1 is connected to the tip of the arm 16.

The medical surgical light of the present invention can also be applied to a ceiling-mounted medical surgical light 21 as shown in FIG.
This surgical light 21 has a support 23 suspended from a mounting body 22, a support 24 is connected to the peripheral surface of the support 23 so as to be able to rotate 360 ° in the horizontal direction, and is further supported on the lower end of the support 24. The rod 25 is connected so as to be rotatable in the vertical direction, and the arm 26 is connected to the tip of the support rod 25 so as to be able to rotate 360 °, and the irradiation body 1 is connected to the tip of the arm 26.

As shown in FIG. 3, the irradiating body 1 has a plurality of irradiation units 3, 3,... Formed at equal intervals in the circumferential direction on the bottom surface of the disk-shaped housing 2. As shown in FIG. A plurality of LED units 4 are arranged inside the irradiation unit 3 in the central part and the peripheral part.

As shown in FIG. 5, the LED chip 5 and the LED chip 6 are arranged inside the LED unit 4.
Here, the LED chip 5 is provided with LEDs 7R, 7G, and 7B that emit three primary colors of red (R), green (G), and blue (B), and the LED chip 6 emits white (W). LED 8 is disposed.

The medical surgical light of the present invention is provided with LEDs 7R, 7G, and 7B that emit three primary colors of red (R), green (G), and blue (B), and, together with them, white (W). An LED 8 that emits light is disposed.

  Here, the LEDs 7R, 7G, and 7B can be individually disposed in the plurality of LED units 4, or can be simultaneously disposed in the single LED unit 4 as described above.

Further, each LED unit 4 can be tilted by a predetermined angle, whereby the LED irradiation light is converged inward and diffused outward.

The surgical surgical lamps 11 and 21 of the present invention have the above-described configuration, and hold and move the support column 14 and also hold and rotate the support 24 to operate the operation table, the examination table, and the like. The irradiator 1 is moved to an appropriate position in the vicinity of.

Then, an appropriate voltage is applied to the LED chip 5 that emits the three primary colors of red (R), green (G), and blue (B), and the LEDs 7R and 7G for red (R), green (G), and blue (B). If the light emission amount of 7B is adjusted as appropriate, the light applied to the surgical tool or the like is irregularly reflected during surgery or treatment, making it difficult to see the affected area and the like, and so that the operation is not hindered.

In addition, when performing surgery or treatment, bleeding in the affected area, etc., and differences in eye pigments do not make the affected area somewhat difficult to see, and the doctor lacks calmness and causes the patient to feel uneasy. There is nothing.

Furthermore, if LEDs 7R, 7G, and 7B are appropriately mixed and light is emitted from a plurality of LED units 4, 4,..., The color of light can be changed from a single color, a mixed color to white, Color can be irradiated.

  Further, if the light emission amount is changed for each of the LEDs 7R, 7G, and 7B, irradiation light having different colors and colors can be appropriately formed, and a color environment corresponding to the patient's preference can be formed.

Also, if the LED chip 5 that emits the three primary colors of red (R), green (G), and blue (B) and the LED chip 6 that emits white (W) are simultaneously disposed in the LED unit, When white light is used, a mixed light can be selected, which is more efficient.

As described above, according to the surgical operating lamp 1 of the present invention, when performing surgery or treatment, the light irradiated to the surgical tool or the like is irregularly reflected, making it difficult to see the affected area, which hinders surgery or the like. There is nothing.

In addition, when performing surgery or treatment, bleeding in the affected area, etc., and differences in eye pigments do not make the affected area somewhat difficult to see, and the doctor lacks calmness and causes the patient to feel uneasy. There is nothing.

Next, another embodiment of the medical surgical light of the present invention will be described.
FIG. 6 is a perspective view of the ceiling-mounted medical surgical light of the present invention, and FIG. 7 is a front view of the irradiation body.

As shown in FIG. 6, the medical surgical light 31 hangs a column 33 from a mounting body 32, and connects a support rod 34 to the circumferential surface of the column 33 so as to be able to rotate 360 ° in the horizontal direction. A support 35 is connected to the lower end of the support 34 so as to be rotatable in the vertical direction, and an arm 36 is connected to the tip of the support 35 so as to be able to rotate 360 °, and an irradiation body 51 is connected to the tip of the arm 36. It is connected.

The medical surgical light 31 of the present invention is characterized by the structure of the illuminating body 51. As shown in FIGS. 6 and 7, the illuminating body 51 has a plurality of structures formed on the bottom surface of a hexagonal casing 52. The plurality of peripheral irradiation units 53B, 53B,... Arranged at the peripheral part can be tilted by a predetermined angle with respect to the central irradiation unit 53A provided at the central part. It is a thing.

Here, the peripheral portion irradiation units 53B, 53B,... Are arranged at equal intervals around the central portion irradiation unit 53A.
Thereby, when the peripheral portion irradiation units 53B, 53B,... Are simultaneously tilted by a predetermined angle, the irradiation light can be collected in line symmetry.

And like the above-mentioned medical surgical lamps 11 and 21, inside these irradiation units 53A and 53B, as shown in FIG. 4, a plurality of LED units 4 are arranged in the central part and the peripheral part, As shown in FIG. 5, the LED chip 5 and the LED chip 6 are arranged inside the LED unit 4.

As a means for tilting the peripheral portion irradiation unit 53B, a link mechanism for supporting each peripheral portion irradiation unit 53B is provided for the central portion irradiation unit 53A, and each link mechanism is operated by an air cylinder. The peripheral irradiation unit 53B may be tilted at the same angle at the same time.

In addition, a support member for supporting each peripheral irradiation unit 53B is provided for the central irradiation unit 53A, and this supporting member is operated by a stepping motor so that each peripheral irradiation unit 53B is simultaneously set to the same angle. You may make it tilt.

In addition, various forms of means for tilting the peripheral portion irradiation unit 53B are conceivable. However, since it is necessary to tilt smoothly and position with high accuracy at a predetermined angle, in particular, by a stepping motor or feedback. Preferably, the support member is operated by a controlled DC motor.

  Next, in order to confirm whether the irradiance of the light which irradiates the affected part etc. can be sufficiently secured by changing the irradiation angle of the peripheral irradiation unit 53B by the medical surgical lamp 31 of the present invention, A simulation was performed.

In order to perform the simulation, a simple model for evaluating the illuminance of the target irradiation surface 61 when the peripheral portion irradiation units 53B and 53B are tilted by a predetermined angle as shown in FIG. 8 is assumed.
Here, x and y indicate the horizontal direction, and z indicates the vertical direction. Assuming that the central irradiation unit 53A of the irradiation body 51 has an a × a square shape and the peripheral irradiation unit 53B has a b × b square shape, the inclination angle of the peripheral irradiation unit 53B with respect to the central irradiation unit 53A Is θ.
Further, the irradiation surface 61 to be evaluated is an area having a D × D square shape, and the height of the central irradiation unit 53A of the irradiation body 51 with respect to the irradiation surface 61 is H.

Further, as the light distribution pattern of the central irradiation unit 53A and the peripheral irradiation unit 53B, either the wide-angle light distribution pattern shown in FIG. 9A or the narrow-angle light distribution shown in FIG. 9B is selected. It shall be.
Here, the light distribution indicates how the emitted light spreads, and the light distribution pattern is displayed by a light distribution diagram showing the intensity of light in each of the vertical and horizontal directions.
For example, wide-angle light distribution is defined as a case where the range of ½ of the downward luminous intensity is 30 ° or more and less than 90 °, and narrow-angle light distribution is defined as a case where the range of ½ of the downward luminous intensity is less than 15 °.

[Example 1]
The width a of the central irradiation unit 53A of the irradiation body 51 is 200 × 200 mm, the width b of the peripheral irradiation unit 53B is 500 × 500 mm, the width D of the irradiation surface 61 is 1200 × 1200 mm, and the central irradiation unit 53A of the irradiation body 51 The height H was set to 1200 mm.
Further, the central irradiation unit 53A and the peripheral irradiation unit 53B are provided with a plurality of LED units 4, and the luminous flux (luminous intensity) of each irradiation unit is 100 lm.

Then, as shown in FIG. 10 (A), the peripheral portion irradiation units 53B and 53B are not tilted, that is, the inclination angle θ is set to 0 °, and the central portion irradiation is performed as shown in FIG. 10 (B). Wide-angle light distribution was selected as the light distribution pattern of the unit 53A and the peripheral irradiation unit 53B.

  The illuminance distribution on the irradiation surface 61 in this case was as shown in FIG. And the average value of the illumination intensity in the area | region C of diameter 200mm from the center point of the irradiation surface 61 was 46.424lx.

[Example 2]
Next, as shown in FIG. 12A, the peripheral portion irradiation units 53B and 53B are tilted to set the inclination angle θ to 20 °, and as shown in FIG. 12B, the central portion irradiation unit 53A and Wide-angle light distribution was selected as the light distribution pattern of the peripheral portion irradiation unit 53B. The other conditions were the same as in Example 1.

The illuminance distribution on the irradiation surface 61 in this case was as shown in FIG. And the average value of the illumination intensity in the area | region C of diameter 200mm from the center point of the irradiation surface 61 was 51.675lx.
Here, if the ratio of the average illuminance when the tilt angle is 20 ° to the average illuminance when the tilt angle is 0 ° is defined as the light collection rate, the value is 1.10.

[Example 3]
Next, as shown in FIG. 14A, the peripheral irradiation units 53B and 53B are tilted to set the inclination angle θ to 20 °, and as shown in FIG. 14B, the central irradiation unit 53A and Narrow-angle light distribution was selected as the light distribution pattern of the peripheral portion irradiation unit 53B. The other conditions were the same as in Example 1.

The illuminance distribution on the irradiation surface 61 in this case was as shown in FIG. And the average value of the illumination intensity in the area | region C 200 mm in diameter from the center point of the irradiation surface 61 was 147.857 lx.
Here, the ratio of the average illuminance when the tilt angle is 20 ° and the narrow-angle light distribution with respect to the average illuminance when the tilt angle is 0 °, that is, the value of the light collection rate is 3.20.

  Based on the result of the above simulation, according to the medical surgical light 31 of the present invention, the peripheral irradiation unit 53B is tilted by a predetermined angle with respect to the central irradiation unit 53A to tilt the peripheral irradiation unit 53B. , 53B was collected, and it was found that the illuminance of the light for irradiating the affected area and the like can be sufficiently secured.

Furthermore, if narrow-angle light distribution is selected as the light distribution pattern of the central portion irradiation unit 53A and the peripheral portion irradiation unit 53B, it is understood that the irradiation light can be further collected and the illuminance of the light irradiating the affected area can be increased. It was.

In the above description, the ceiling-mounted medical surgical lamp 31 has been described. However, the present invention can also be applied to a floor-mounted medical surgical lamp.
Moreover, although what comprised the irradiation body 51 from the several irradiation unit 53 comprised on the bottom face of the hexagon-shaped housing | casing 52 was demonstrated, not only a hexagonal shape but various shapes, such as circular shape and a rectangular shape, are selected. be able to.

As described above, according to the medical surgical light of the present invention, it is possible to collect light by changing the irradiation angle of the peripheral irradiation unit, and to sufficiently secure the illuminance of the light that irradiates the affected area. It can be done easily.

In addition, according to the situation at the time of surgery or treatment, the irradiation angle of the peripheral irradiation unit can be changed, and the illuminance of the light irradiating the affected part can be adjusted as appropriate, so there is no wasteful power consumption. It can also contribute to energy saving.

DESCRIPTION OF SYMBOLS 1 Irradiation body 3 Irradiation unit 4 LED unit 5 LED chip 6 LED chip 7R LED which emits red (R)
7G LED emitting green (G)
7B LED emitting blue (B)
8 LED emitting white (W)
DESCRIPTION OF SYMBOLS 11 Medical surgical light 21 Medical surgical light 31 Medical surgical light 51 Irradiation body 53A Center part irradiation unit 53B Peripheral part irradiation unit

Claims (5)

A plurality of irradiation units are arranged on the irradiating body, and an LED unit is arranged in the irradiation unit, and the three primary colors of red (R), green (G), and blue (B) are provided in the LED unit. A medical surgical light characterized in that a light emitting LED chip is disposed. 2. The medical use according to claim 1, wherein LEDs emitting three primary colors of red (R), green (G), and blue (B) are arranged in the LED unit at appropriate intervals in the circumferential direction. Surgical light. An LED chip that emits three primary colors of red (R), green (G), and blue (B) and an LED chip that emits white (W) are simultaneously disposed in the LED unit. The medical surgical light according to 1. An irradiation body is constituted by a central irradiation unit disposed in the central part and a plurality of peripheral irradiation units disposed in the peripheral part, and the peripheral irradiation unit is tiltable with respect to the central irradiation unit. The medical surgical light according to any one of claims 1 to 3, wherein The medical surgical lamp according to claim 4, wherein the peripheral irradiation unit is arranged at equal intervals around the central irradiation unit.