JPS6047857B2 - Black light irradiation field changing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an irradiation field changing device for a medical black light irradiation device.

J Conventionally, in a black light irradiation device, the direction of irradiation of the human body by the irradiation section is constant, and the irradiation field is narrow, so the irradiation area of the human body is also small.

Therefore, during treatment or diagnosis, it is troublesome to have to rotate the human body every time, and a considerable amount of time must be spent on treatment. SUMMARY OF THE INVENTION An object of the present invention is to provide a black light irradiation device in which the irradiation field of the irradiation section can be changed as necessary, thereby eliminating the above-mentioned drawbacks of the conventional apparatus.

Hereinafter, illustrated embodiments embodying the present invention will be described in detail.

In the figure, reference numeral 1 indicates a movable base having casters 1a at the four ends of the lower surface, and at the rear of the base 1, two columns 2 are erected facing each other, and their upper ends are connected. Part 3
connected by.

A back plate 4 is arranged vertically between the pillars 2, and the back plate 4 is attached to the pillars 2 through rollers 5 provided at the four upper and lower corners.
It is designed to be raised and lowered while being guided by a known lifting device (not shown). Note that a control box 6 is attached to an appropriate position on the support column 2. back plate 4
The rear end of a box-frame-shaped support member 7 extending horizontally toward the front is joined to the upper end, and an appropriate number of pedestals 9 are constructed on the lower frame 8 of the support member 7. A wire lobe winding section, which will be described later, is installed. Therefore, the support member 7
However, a black light irradiation section 10 is attached to the bottom surface. This black light irradiation unit 10 includes a fixed irradiation unit 11 located at the center and a movable irradiation unit K connected to both sides of the fixed irradiation unit 11.
, K. Furthermore, the movable irradiation section K in this example is
It consists of two movable irradiation parts 12 for oblique irradiation arranged in parallel on the outside of the fixed irradiation part 11, and two movable irradiation parts 13 for side irradiation arranged in parallel on both sides. Each of the irradiation units 11, 12, and 13 is formed from a reflector 14 and a Brass clamp 15 attached to the reflector. In addition, in this embodiment, the Bratz clamp 15
, is shown in the case where the fixed irradiation unit 11 is equipped with four irradiation units, the movable irradiation unit 12 for oblique irradiation is equipped with three each, and the movable irradiation unit 13 for side irradiation is equipped with two each, Further, as shown in the figure, the movable irradiation section 13 for side irradiation has a reflector 134 arranged so that its irradiation direction is directed inward. The fixed irradiation unit 11 for top irradiation is fixed at both upper portions to the lower frame 8 of the support member 7 via a blanket 16.

In addition, both movable irradiation parts 12 for oblique irradiation are connected to elongated holes attached to the side surfaces of the fixed irradiation part 11 via connecting protrusions 17 provided at the lower part of the side facing the fixed irradiation part 11 on both left and right sides. The movable irradiation parts 12 for oblique irradiation are connected by a connecting protrusion 18 with an attached pin 18 and a pin 19 so as to be rotatable and slightly slidable.
It is suspended and supported by two wire lobes 27a and 27b from a wire lobe winding section. The two movable irradiation units 13 for side irradiation are rotatably connected to the corresponding movable irradiation units 12 for oblique irradiation via hinges 21, and the fixed irradiation plates 11 for top irradiation are connected to the left and right sides. They are connected and supported on both sides via four-bar parallel links 22. Therefore, the movable irradiation section 13 for side irradiation always maintains a position perpendicular to the fixed irradiation section 11 by the parallel link 22 when changing the irradiation.

In addition, since the four-bar parallel link 22 is used, the movable fulcrums of the movable irradiation units 12 and 13 are three points, the connection point of the link 22 and the pin 19, so that the movable irradiation units 12 and 13 have an irradiation field. Although interference occurs when the change is made, in this embodiment, this interference is absorbed by the elongated hole 18a of the connecting protrusion 18 described above, and the maximum rotation of the movable irradiation unit 12 for oblique irradiation is
The angle is set to approximately 45 degrees. However, this rotation angle can be made larger if necessary.
Next, the configuration of the wire lobe winding section will be explained.

A motor 23 for changing the irradiation field and a reducer 25 driven by the motor 23 via a belt 24 are fixed to the center pedestal 9, respectively. A winding drum 26 divided into two winding sections is fixed, and each winding section of the winding drum 26 has wire lobes 27a for suspending both movable irradiation sections 12,
27b are each wound in opposite directions. Each of the wire lobes 27a and 27b is connected to the corresponding hanging tool 20 of the movable irradiation section 12 for oblique irradiation via fixed pulleys 28 fixed on the pedestals 9 on both sides. Further, four microswitches 30 for abnormality detection are attached to the pedestal 9 via a blanket 29, and the actuator 30a of each microswitch 30 comes into contact with the corresponding wire lobe 27a, 27b. The power supply circuit of the motor 23 is kept on. The micro switch 30, in which the actuator 30a is in contact with the wire lobes 27a, 27b under tension, shuts off the motor's power supply circuit when any one of the four wire lobes 27a, 27b is disconnected or relaxed. The device is turned off, and an alarm buzzer, indicator light, etc. are used to notify abnormalities. Next, a case will be described in which the device of this embodiment is applied to actual treatment.

First, under the bed with the patient on it! Slide the base 1 into the
After setting the black light irradiation unit 10 so that it is above the patient, the back plate 4 and the support member 7 are raised and lowered by operating the control box 6 provided on the support column 2, and the distance between the patient and the fixed irradiation unit 11 is adjusted. To be determined as appropriate. Here l,
If the affected area of the patient is small and partial, treatment can be started without rotating the movable irradiation units 12 and 13, with the black light irradiation unit 10 kept in a horizontal position as shown by the solid line in Fig. 3. If the area requiring treatment and diagnosis is a wide range such as the front and side surfaces of the human body, the control box 6 is further operated to change the irradiation field of the black light irradiation unit 10. That is, the power supply circuit of the winding section is turned on, the motor 23 is driven, and the reducer 2 is turned on.
When the winding drum 26 is rotated through the winding drum 26 and each wire lobe 27a, 27b is let out, the wire lobe 2
Each movable irradiation unit 12 for oblique irradiation suspended from 7a and 27b rotates downward and inward using the pin 19 as a fulcrum due to its own weight, and accordingly, each movable irradiation unit 12 for side irradiation The irradiation unit 13 also moves downward and inward in parallel via the four-bar parallel link 22 (see phantom lines in FIG. 3). As a result, the patient's upper surface is illuminated by the fixed irradiation unit 11, both sides by the movable irradiation unit 13 for lateral irradiation, and the area from the upper surface to the side by the movable irradiation unit 12 for oblique irradiation. It will be covered. That is, this device can treat three sides of a patient on a bed at once by changing the irradiation field of the irradiation section. Note that since the rotational positions of the movable irradiation units 12 and 13 in the irradiation unit 10 can be freely adjusted within a predetermined range, the approach distance of each irradiation unit 11, 12, and 13 to the patient can be arbitrarily determined. It is something. Therefore, if an accident such as cutting of the wire lobes 27a and 27b occurs during the above-described irradiation field change, the movement of the movable irradiation units 12 and 13 is stopped in an emergency. That is, when one of the four wire lobes 27a and 27b suspending the oblique irradiation section 12 is cut, the corresponding microswitch 30 is activated due to the elimination of tension, and the power to the motor 23 is turned off. Emergency stop of the movement movement when changing the irradiation field! H, and also activates a notification means such as a buzzer to notify this fact. In this case, the movable irradiation units 12 and 13 are suspended by two wire lobes 27a and 27b, so even if one of the wire lobes 27a and 27b is cut, they will not fall, ensuring their safety. be done. Furthermore, even if the movable irradiation unit 13 comes into contact with a bed or the like, the wire lobe 27
Since a and 27b are relaxed, the same action for ensuring safety as described above is performed. In this embodiment, the black light irradiation unit 10 has been explained as being composed of five blocks, but it is also possible to change this to be composed of three blocks, in which case the movable irradiation unit located on both sides It is desirable to provide a rotation range of at least 90 degrees.

As is clear from the above description, the present invention comprises a black light irradiation section consisting of at least three blocks, a fixed irradiation section and a movable irradiation section, and a movable irradiation section rotatably attached to the fixed irradiation section. Since the irradiation field of the irradiation part can be changed by dynamic displacement, it is possible to perform treatment or diagnosis depending on the size of the affected area of the patient.

That is, since a wide irradiation field can be obtained, there is no need to turn the body every time during treatment and diagnosis, which was conventionally required, and the time required for treatment and diagnosis can be shortened.

In addition, since the movable irradiation unit can be rotated, it can be moved closer or further away from the patient's body.
It also has the effect of arbitrarily selecting the intensity of black light irradiation. Furthermore, according to the present invention, when one of the plurality of wire lobes suspending the movable irradiation unit is cut,
Or even if a dangerous situation occurs, such as when the movable irradiation unit continues to send out the wire lobe without realizing that its rotation is blocked by an obstacle such as a bed, the micro A safety device including a switch turns off the motor's power supply circuit and at the same time notifies the user of an abnormality, thereby ensuring human safety.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view showing a black light irradiation device, FIG. 2 is a side view of the same, and FIG.
FIG. 4 is a side view including a partial cross section showing the black light irradiation field changing device, and FIG. 4 is a plan view also including a partial cross section. 1... Base, 2... Pillar, 7...
...Support member, 10...Black light irradiation part, 11...Fixed irradiation part, 12...Movable irradiation part for oblique irradiation, 13...For side irradiation movable irradiation part,
27a, 27b...Wire robe, 30...
····Microswitch.

Claims (1)

[Claims] 1. In an irradiation device equipped with a black light irradiation section on the lower surface of a support member 7 extending forward from a support 2 erected on a base 1, this black light irradiation section is fixed to one. It consists of an irradiation section 11 and movable irradiation sections K, K arranged on both sides of the fixed irradiation section 11, and the fixed irradiation section 11 is fixed to the support member 7, and each movable irradiation section K, K
The irradiation unit 11 is rotatably connected to both sides of the fixed irradiation unit 11, and is suspended and supported so that its position can be changed via ropes 27a and 27b wound around a winding drum 26 provided on the support member. A black light irradiation field changing device characterized by: 2 The movable irradiation section includes a movable irradiation section 12 for oblique irradiation arranged in parallel on both sides of the fixed irradiation section 11, and a movable irradiation section 12 rotatably coupled to both sides of the movable irradiation section 12 and the fixed irradiation section 1.
1. The blacklight irradiation field changing device according to claim 1, further comprising a movable irradiation section 13 for side irradiation connected to the irradiation section 1 via a parallel link 22. 3 In an irradiation device equipped with a black light irradiation section on the lower surface of the support member 7 extending forward from the support 2 erected on the base 1, this black light irradiation section is combined with one fixed irradiation section 11 and fixed irradiation. The fixed irradiation section 11 is fixed to the support member 7, and the movable irradiation sections K and K are arranged on both sides of the section 11.
are rotatably connected to both sides of the fixed irradiation unit 11, and each is connected to a position via at least two or more ropes 27a, 27b wound around a winding drum 26 provided on the support member 7. The ropes 27a, 27b are hung and supported in a variable manner, and the support member 7 is equipped with microswitches 30 to 30 for detecting breakage or loosening of the ropes 27a, 27b and giving a stop command to the winding section. 27b. 4. The movable irradiation section K includes a movable irradiation section 12 for oblique irradiation arranged in parallel on both sides of the fixed irradiation section 11, and a movable irradiation section 12 that is rotatably coupled to both sides of the movable irradiation section 12 and fixed irradiation section 1.
2. The blacklight irradiation field changing device according to claim 2, further comprising a movable irradiation section 13 for side irradiation connected to the irradiation section 1 via a parallel link 22.