JPH10258064A - Head part positioning apparatus and head part fixing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable accurately positioning of a head part in a short time at the re- photographing of the head part by a method wherein the head part of a patient on a bed of an image diagnostic apparatus is taken by a photographing means, the image taken is processed into an image data to be stored once and a read image is superimposed on the current image to be projected. SOLUTION: A patient is laid on a bed B so as to let his mastoids contact two knobs on a head part fixing pillow 22 and then, a head part positioning device 10 is moved to be fixed on the bed B. Then, the front and the side of the face of the patient is taken by a camera 12 for monitoring to be stored into a recording means as image data. In the re-photographing made after the passage of a fixed period of time, the patient is laid in the same way and the taken image is read out of the memory means to be projected on to a monitor. In addition, the front and the side of a new face of the patient are monitored by the camera 12 for monitoring and the previously taken image of the patient is displayed being superimposed on the new image of the patient on a monitor 13 to adjust the position of a mobile frame 21 until the old and new images coincide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image diagnostic processing apparatus, and more particularly to a head positioning apparatus and a head fixing apparatus suitable for use in photographing a patient with a CT, MR, or gamma camera.

[0002]

2. Description of the Related Art Image diagnostic processing apparatuses such as CT, MR, and gamma cameras are widely and widely used for accurately diagnosing the condition of a patient.

[0003] When taking a picture using an image diagnostic apparatus,
To see the progress of the disease, the effects of medication, the post-operative course, etc.
In some cases, re-shooting is performed after a certain date and time. Further, different types of image diagnostic apparatuses may be used. In such a case, it is necessary to photograph on the same tomographic plane in order to compare the images of the respective diagnostic imaging apparatuses.

[0004]

However, the prior art has the following problems because there is no index for positioning.

(1) It takes a lot of time for alignment. (2) The position was incorrect because there was no index. (3) When taking a picture at a later date, the human body could not be set at the same position as in the previous photographing.

Further, even if the alignment can be performed for a long time and with much effort, the following problems arise because a method for fixing a human body and a method for maintaining a fixed posture have not been established. Was.

(4) It takes time to fix and hold the human body. (5) For example, when taking an image of the head, there are methods of fixing with a belt and a method of applying a face mask, but the former involves pains due to strong pressure bonding, and the latter involves thermoplasticity. It was thick, stuffy, unable to move, and painful for the patient to mold with the resin.

The present invention has been made in view of the above problems, and has as its object to reduce the time required for positioning, perform the positioning accurately, and maintain the same position even after a while. At the same time, it can fix and hold the human body in a short time,
It is an object of the present invention to provide a head positioning device and a head fixing method capable of fixing and holding a human body without causing pain to a patient.

[0009]

The gist of the present invention is to provide a head positioning apparatus capable of positioning a patient's head of an image diagnostic apparatus, wherein the head is positioned on a bed of the image diagnostic apparatus. Imaging means for imaging the patient's head,
Image processing means for processing an image taken by the photographing means into image data; storage means for storing the image data processed by the image processing means; and an image photographed by the photographing means, which is further stored in the storage means. When the image data is read, the head positioning device is provided with a monitor that superimposes and displays the read image and the current image. The gist of the invention according to claim 2 resides in the head positioning device according to claim 1, wherein the photographing means is provided on a frame having a portal shape as a whole so as to be able to straddle the bed. .
The gist of the invention according to claim 3 is that one photographing means is provided on each of the lower surface and the side surface of the frame so that the front and the side of the face of the patient lying on the back can be moved separately. 3. The head positioning device according to claim 2, wherein: The gist of the invention according to claim 4 resides in the head positioning device according to claim 2 or 3, wherein the frame is provided with means for fixing to the bed. The gist of the invention according to claim 5 resides in the head positioning device according to any one of claims 2 to 4, wherein the bed is provided with a stopper against which the front surface of the frame comes into contact. . The gist of the invention described in claim 6 is that a vehicle is provided at a lower end of the frame.
The head positioning device according to any one of the first to fifth aspects. The gist of the invention described in claim 7 resides in a movable gantry provided on a bed of an image diagnostic apparatus, wherein a movable means is provided so as to be able to move up and down. The gist of the present invention resides in a movable gantry, wherein the lifting means can be adjusted from a control panel of the image diagnostic apparatus. The gist of the ninth aspect of the present invention resides in a head fixing pillow having an upper portion provided with two aneurysms that can abut on a portion of the occipital region on the neck side of the papillae. The gist of the invention according to claim 10 is that a fixed seat having a spherical shell-shaped recess provided on an upper surface, which is fixed to a bed of the diagnostic imaging device, and a spherical shell shape, and a neck of an occipital papillae in the center of the upper surface. There is a head-fixing pillow that has two knobs that can be abutted on the side portion and a movable adjustment seat fixed to the concave portion. The gist of the invention according to claim 11 resides in the head fixing pillow according to claim 10, wherein the curvature radius of the lower surface and the concave portion of the movable adjustment seat is equal to the distance to the center of the patient's head. The gist of the invention described in claim 12 is:
The head fixing device is characterized in that fixing means for fixing the movable adjustment seat to the fixed seat are provided. Claim 1
The gist of the invention described in (3) is that the head is fixed to the bed of the diagnostic imaging apparatus and is movable in the vertical direction, and the head is fixed to the bed. And a pillow. The gist of the invention according to claim 14 is that, when newly photographing, when photographing two or more times after a period, the head is located at the position of the previous head, and When the next image is taken, the previous image is read out and displayed on the monitor, and a new image showing the position of the head when a new image is taken is superimposed on the monitor and displayed. The head positioning method is characterized in that the head is positioned so that the new image matches the previous image.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) First, a head positioning apparatus for positioning a patient's head of an image diagnostic apparatus according to Embodiment 1 will be described.

As shown in FIGS. 1 and 2, the head positioning device 10 includes a frame 11, a monitor camera 12 (photographing means) for photographing the patient's head, and the monitor camera 12 Image processing board (image processing means) for processing the processed image into image data, storage means for storing the image data processed by the image processing board, and a monitor for displaying an image taken by the monitor camera 12. Have been.

The frame 11 has a gate shape as a whole so as to be able to straddle the bed B. 4 at the bottom
After the patient lies on the bed B, he pushes it to the patient's head, and when positioning is completed, the patient can pull out and pull out. The positioning of the head positioning device 10 itself
This is performed by bringing the front surface of the head positioning device 10 into contact with a stopper (not shown) formed on the bed B. The fixing of the head positioning device 10 to the bed B is performed by screws, clips, or the like.
It is performed by a suitable fixing means.

A monitor camera 12 is mounted on the upper lower surface and one inner surface. An image from the camera 12 is processed by an image processing board provided on the control sole, and the processed image is sent to a monitor (not shown) of the control sole so that an operator can monitor the image. Monitor camera 12,
Monitor, image processing board, software required for it, etc.
A device used in an image inspection device for detecting the position of a semiconductor device, a wafer, or the like is used.

Next, the head fixing device 20 will be described.

The head fixing device 20 comprises a movable base 21 and a head fixing pillow 22.

The movable gantry 21 has a rectangular shape in plan view and is provided in front of the bed B. As shown in FIG.
It is supported by two support legs 21a. Support leg 21a
Is threaded on the outer surface of the movable base 21 when the support leg 21a rotates. Support leg 2
As the rotation means 21b for rotating the first member 1a, a drive motor or the like suitable for carrying out the present invention is used. The turning means (elevating means) can be turned by an operator by a controller (not shown) provided on the control sole. Since the support legs 21a rotate independently of each other, the movable gantry 21 can be inclined.

The head fixed pillow 22 is fixedly mounted on the upper surface of the movable base 21. As shown in FIG. 4, two bumps 22 a that can abut on the neck side of the papillae of the occipital region when the patient is lying on the bed B are provided. These two bumps 22
By a, the head of the patient is fixed.

The head positioning device 10 constructed as described above
An imaging method using the head fixing device 20 will be described.

First, the patient is laid on the bed B so that the papillae of the patient come into contact with the two bumps 22a of the head-fixing pillow 22.

Next, the head positioning device 10 is moved and fixed to the bed B.

Next, the front and side surfaces of the patient's face are photographed by the monitor camera 12.

As for the photographing portion, a portion serving as an index for the front is photographed. In the present embodiment, eyes and moles are used as indices. In addition,

Regarding the side surface, a line between the outer corner of the eye and the hole of the ear (referred to as an "OM line") is positioned and photographed so as to be perpendicular to a reference perpendicular line. The reference perpendicular is set in the viewfinder of the monitor camera 12 or by software.
In FIG. 5 and FIG. 6 to be referred to next, the reference perpendicular line and the OM line are slightly shifted so as to be visually recognized, but they are actually matched. These images are stored in the recording means as image data. The storage means may be a hard disk, an optical disk, a magnetic disk, or the like suitable for implementing the present invention.

After the above steps are completed, the head positioning device 10 is withdrawn and photographed by an image diagnostic device in the same manner as usual.

After the predetermined period has elapsed, re-photographing is performed as follows.

First, in the same manner as in the above steps, the patient is laid on the bed B, and the head positioning device 10 is moved and fixed to the bed B.

Next, the photographed image is read out from the storage means and displayed on the monitor 13 as shown in FIG.

Next, the front and side surfaces of the new face of the patient are monitored by the monitoring camera 12. As shown in FIG. 6, a new patient image is superimposed on the previously captured image on the monitor 13 and displayed.
, The movable gantry 21 is adjusted by the controller so that the new image matches the previous image. The previous image is indicated by a solid line, and the new image is indicated by a two-dot chain line.

Next, when the front image and the new image coincide with each other, the head has been positioned.

Next, the effects of the present embodiment configured as described above will be described.

Since the mole and the previous image can be recorded and read out, the previous image can be used as an index, so that the positioning can be performed only by making the new image coincide with the previous image on the monitor 13. As a result, the time for positioning can be shortened, the positioning can be performed accurately, and the same position can be obtained even after a while. According to the results of experiments conducted by the inventor, 0.1 m
Positioning was possible with an accuracy of m.

Since the head fixing pillow 22 establishes a method for fixing the human body and a method for maintaining the fixed posture, the human body can be fixed and held in a short time without causing any pain to the patient. Can fix and hold the human body.

Further, since the two nodules 22a which can abut on the neck portion of the papillae of the occipital region are provided, the head can be securely fixed. In addition, when the patient is unconscious, even if the face is swollen or deformed by surgery, positioning can be performed as long as the papillary bone is not removed.

Further, by adjusting the length of the support leg 21a, it is possible to adjust six degrees of freedom of rotation in three directions, front and rear, right and left and up and down.

Even if the head is deformed by surgery,
Positioning can be performed by adjusting the movable base 21.

The above-mentioned operating can be performed by the operator of the diagnostic imaging apparatus alone.

In this embodiment, the head is used for positioning and fixing, but the present invention is not limited to this.
The present invention can be applied to a portion suitable for applying the present invention, such as a foot or a torso. Further, it can be used not only for the human body but also for animals.

In addition, the photographing part has eyes, nose,
Mouth and whole face are fine. As for the side, the entire profile may be used. These images can also be processed.

In this embodiment, the monitor camera 12 is positioned by the stopper provided on the bed B. However, the present invention is not limited to this. Register marks are provided in the corners, and corresponding register marks are also provided on the Fider,
By aligning both registration marks, the photographing means can be positioned by a method suitable for practicing the present invention, such as positioning the photographing means.

(Embodiment 2) Another embodiment of the fixed head pillow 32 will be described. As shown in FIGS. 7 and 8, a fixed seat 33 fixed to the bed of the diagnostic imaging apparatus, and a movable adjustment seat 34 fixed to the recess 34 are provided. In FIG. 7, the movable adjustment seat 34 is slightly lifted so that the concave portion is easily visible.

The fixed seat 33 has a spherical shell-shaped recess 34 on its upper surface.
Is provided. Two aneurysms 3 which are in the form of a ball (sphere shell) and can be brought into contact with the neck portion of the occipital papillae in the center of the upper surface
4b.

The radius of curvature of the lower surface of the movable adjustment seat 34 and the concave portion 34 is set to be equal to the distance to the center of the patient's head. Further, fixing means (not shown) for fixing the movable adjustment seat 34 to the fixed seat 33 is provided.

In the head-fixed pillow 32 according to the second embodiment, since the radius of curvature of the lower surface of the movable adjustment seat 34 and the concave portion 34 is equal to the distance to the center of the patient's head, more accurate positioning is achieved. Can be.

Further, since the fixing means is provided, it is possible to prevent the head from being displaced.

In the above figures, the same components are denoted by the same reference numerals.

Further, the number, position, shape, etc. of the above-mentioned constituent members are not limited to the above-mentioned embodiment, but can be set to a suitable number, position, shape, etc. for carrying out the present invention.

[0048]

Since the present invention is configured as described above, the following effects can be obtained.

Since the preceding image can be used as an index for positioning by the head positioning device, the positioning time can be shortened, the positioning can be performed accurately, and the same position can be maintained even after a while.

Further, since a method for fixing the human body and a method for maintaining the fixed posture are established by the head fixing device, the fixing and holding of the human body can be performed in a short time, and the human body can be fixed without causing any pain to the patient. Can be fixed and held

[Brief description of the drawings]

FIG. 1 is a side sectional view of a head positioning device.

FIG. 2 is a front view of the head positioning device.

FIG. 3 is a side view of the movable base.

FIG. 4 is a front view of the head-fixed pillow.

FIG. 5 is a diagram showing a method of alignment.

FIG. 6 is a diagram showing a method of alignment.

FIG. 7 is an exploded perspective view of a head fixing device according to a second embodiment.

FIG. 8 is a longitudinal sectional view of the head fixing device according to the second embodiment.

[Explanation of symbols]

 B Bed V Reference perpendicular line 10 Head positioning device 11 Frame 12 Monitor camera (photographing means) 13 Monitor 20 Head fixing device 21 Movable pedestal 21a Support leg 21b Rotating means (elevating means) 22 Head fixing pillow 22a Nodule 32 head Part fixed pillow 33 Fixed seat 34 Movable adjustment seat 34a Recess 34b Nodule

Claims (14)

[Claims] 1. A head positioning device capable of positioning a patient's head of an image diagnostic apparatus, comprising: an imaging unit configured to image a head of a patient lying on a bed of the image diagnostic apparatus; An image processing means for processing the image photographed by the photographing means into image data, a storage means for storing the image data processed by the image processing means, an image photographed by the photographing means, and the storage means A head positioning device comprising: a monitor for displaying a read image and a current image in a superimposed manner when stored image data is read. 2. The head positioning apparatus according to claim 1, wherein said photographing means is provided on a frame having a portal shape as a whole so as to be able to straddle a bed. 3. A photographing means is provided on each of the lower surface and the side surface of the frame so that the front and side surfaces of the patient lying on the back can be moved separately. 3. The head positioning device according to claim 2, wherein: 4. The head positioning device according to claim 2, wherein the frame is provided with fixing means for fixing to the bed. 5. The head positioning device according to claim 2, wherein the bed is provided with a stopper against which the front surface of the frame comes into contact. 6. The head positioning device according to claim 2, wherein a vehicle is provided at a lower end of the frame. 7. A movable gantry provided on a bed of the diagnostic imaging apparatus, wherein the gantry is provided so as to be vertically movable. 8. The movable gantry, wherein the elevating means is adjustable from a control panel of the diagnostic imaging apparatus. 9. A head-fixing pillow having an upper portion provided with two bumps that can abut on a neck-side portion of the occipital papillae. 10. A fixed seat which is fixed to a bed of an image diagnostic apparatus and has a spherical shell-shaped concave portion provided on an upper surface, and a spherical shell shape, and is provided at the center of the upper surface on the neck side of the occipital papillae. A head-fixed pillow having two contactable knobs and a movable adjustment seat fixed to the recess. 11. The head-fixing pillow according to claim 10, wherein the radius of curvature of the lower surface of the movable adjustment seat and the radius of curvature of the concave portion are equal to the distance to the center of the patient's head. 12. A head fixing device, wherein fixing means for fixing the movable adjustment seat to the fixed seat is provided. 13. A head mount pillow according to claim 9, wherein said head mount pillow is provided on a bed of said diagnostic imaging apparatus and is movable in a vertical direction. A head fixing device comprising: 14. When a new image is taken, a period of time
When shooting more than once, store the image of the head at the position of the previous head, and position the head at the time of shooting, and read the previous image at the next shooting Display on the monitor, and display a new image indicating the position of the head at the time of newly shooting on the monitor so as to be superimposed, and position the head so that the new image matches the previous image. A head positioning method comprising: