JPH0418858B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel mobile dental X-ray apparatus for use with a horizontal dental chair.

Traditionally, dental X-ray devices have been of fixed type, such as ceiling-suspended or wall-mounted, and have X-ray irradiation means attached to the tip of an arm that protrudes laterally from a long column erected on a base. A mobile type equipped with a was known. The former has the disadvantage that X-ray diagnosis can only be performed at the location where the X-ray irradiation means is installed. The latter method is based on the premise that the patient will be irradiated with X-rays while sitting on the chair or leaning backwards. The head position of a patient sitting on this type of chair is inevitably high, and the X-rays are irradiated diagonally from above, so the support that supports the X-ray irradiation means is high and the arms are long, making the device difficult to use. It was large, and the arms in particular were unstable because they protruded to the sides, so it was necessary to make the base heavier to stabilize it. In addition, in consideration of radiation exposure for X-ray operators, there were other problems such as the need to construct the entire treatment room to shield X-rays and operate the system from a separate room. On the other hand, horizontal treatment chairs that treat patients while lying in a horizontal position have recently come into use, but a mobile dental X-ray device for this horizontal treatment chair has not yet been developed. At present, the device is used as it is in a horizontal medical chair, and the above-mentioned drawbacks remain unsolved.

The present invention has been made focusing on the above points,
The X-ray device itself is configured to be movable, and the X-ray irradiation means is positioned directly above the face of the patient who is lying face up on a horizontal medical chair, so that the main radiation of the X-rays is directed downward; An object of the present invention is to provide a dental X-ray device that is safe against X-ray exposure, is small and lightweight, is easy to handle, and is inexpensive to manufacture.

An embodiment of the present invention will be described below based on the accompanying drawings.

In the figure, reference numeral 2 denotes a dental X-ray apparatus according to the present invention, which is used for irradiating X-rays to a patient P lying horizontally on a horizontal medical chair S. 4 is a footrest,
It is formed with a plurality of protruding legs 6, for example, in an H-shape when viewed from the top, and casters 8 are attached to the tips of the legs 6, making them movable. 10
is a vertical shaft erected upward from the center of the footrest 4. Reference numeral 12 denotes an arm shaft connected to the upper end of the vertical shaft 10, which includes a lower horizontal shaft 14 connected to the vertical shaft 10, a support shaft 16 extending upward from the lower horizontal shaft 14, and the support shaft 16. The upper horizontal shaft 18 extends horizontally from the distal end of the patient P to face the lower horizontal shaft 14, and the hanging shaft 20 hangs downward from the upper horizontal shaft 18.
It is bent to form a space A into which the head H of the head H can enter.

Reference numeral 22 denotes an X-ray irradiation means rotatably mounted on the lower end of the vertical shaft 20, and its main radiation is directed downward. The X-ray irradiation means 22
Since it is located on the axis of the vertical shaft 10, it is mounted in a stable state.

24 is on the lower horizontal axis 14 and the space portion A
This is an X-ray shielding box that is removably installed so that it is located at the The X-ray shielding box 24 includes upper and lower plates 26, 28, left and right side plates 30, 32, and a rear end plate 3.
4 and a distal inlet opening 36. The lower plate 28 and the rear end plate 34 are formed of a lead plate, and the upper plate 26 and the left and right side plates 30, 32 are formed of an X-ray shielding transparent plate, for example, an acrylic plate containing lead. has been done. The upper plate 26 is provided with a cone insertion hole 38 into which the cone 22a of the X-ray irradiation means 22 is inserted. A hook-shaped protruding piece 40 is provided on the lower surface of the lower plate 28, and the lower horizontal shaft 1
The X-ray shielding box 24 is removably attached to the lower horizontal shaft 14 by fitting it into an inverted U-shaped receiving member 42 provided at the lower horizontal shaft 14. It should be noted that as a means for removably attaching the X-ray shielding box 24 so as to be located in the space A, other known means can of course be adopted, and the attaching and detaching means can be attached to the support shaft 16 and the rear end. It is also possible to provide it on the plate 34. The inlet opening 3
6 is openably and closably closed by an X-ray shielding cloth 44, for example, a vinyl cloth containing lead. There are various methods for making the X-ray shielding cloth 44 freely openable and closable.
a, 44a, and the two cloth pieces 44a, 44
The upper end of the upper plate 26 may be fixed to the open end of the upper plate 26 so as to overlap each other at the center, and the other ends may be left free. Therefore, by rolling up the other end, the head H of the patient P can be freely taken in and out of the X-ray shielding box 24 through the entrance opening 36.

With the configuration described above, the head H of the patient P lying in a horizontal state on the horizontal medical chair S is allowed to enter the X-ray shielding box 24, and the X-ray shielding box 24 located above is
X-rays are irradiated from the ray irradiation means 22. At this time,
Since the X-rays are irradiated only within the X-ray shielding box 24 and do not leak outside, there is no fear of exposure to X-rays. Furthermore, since the position of the head H of the patient P can be set using the vertical position adjustment device attached to the horizontal medical chair S, there is no need to provide the dental X-ray apparatus 2 with a height adjustment device. and,
The installation position of the X-ray irradiation means 22 is horizontal medical chair S.
Since the dental X-ray apparatus 2 only needs to be located above the head H of the patient P who is lying in a low position, the size of the dental X-ray apparatus 2 is compact, and the manufacturing cost is correspondingly low. In addition, it is only necessary to position the X-ray irradiation means 22 above the head H of the patient P and irradiate the X-rays, and it is not necessary to adjust the X-ray irradiation angle each time according to the sitting height of the patient, unlike conventional devices. is gone,
The operation itself has become simpler and its movement has also become easier.

As described above, the present invention configures the X-ray apparatus itself to be movable, and positions the X-ray irradiation means above the face of the patient who is lying face up on a horizontal medical chair, so that the main radiation of the X-rays is directed downward. Since the dental X-ray device is configured to face the patient, it is safe from exposure to X-rays, is small and lightweight, is easy to handle, and has the advantage of being inexpensive to manufacture.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing an embodiment of the present invention, and FIG. 2 is an isolated perspective view of an X-ray shielding box. 2... Dental X-ray device, 4... Leg stand, 10...
Vertical axis, 12... Arm axis, 22... X-ray irradiation means, 24... X-ray shielding box, A... Space portion, P... Patient, H... Head.

Claims (1)

[Claims] 1 A leg stand with casters, a vertical shaft erected on the leg stand, and a space connected to the upper end of the vertical shaft to form a space into which the head of a patient lying horizontally can enter. an arm shaft bent or bent in a direction, and an X-ray irradiation means installed at the tip of the arm shaft so as to radiate a main radiation downward;
An X-ray shielding box into which the X-rays from the radiation irradiation means can enter and into which the patient's head can be inserted and removed is removably provided in the space, and the lower plate and rear end plate of the X-ray shielding box are made of lead. The left and right side plates and the top plate are made of X-ray shielding transparent plates, and the entrance opening through which the patient's head enters and exits is closed by an X-ray shielding cloth so as to be openable and closable. 1. A dental X-ray device, characterized in that a cone insertion hole is formed in the upper plate of the insulator, into which a cone of an X-ray irradiation means can be inserted.