JPH06225871A - Testee mounting top plate for ct radiography - Google Patents

Abstract

PURPOSE:To provide a testee mounting top plate for CT radiography capable of being fitted with various radiographic auxiliary tools required in response to the condition and radiographic portion of a testee, capable of keeping the posture of the testee stable, and capable of correctly applying CT radiography. CONSTITUTION:A testee mounting top plate for CT radiography is provided with a testee mounting top plate main body 10P mounting a testee M to guide the testee M into a frame used for CT radiography, a radiographic auxiliary tool fitting mechanism 11a installed in the region A of the frame where the top plate main body 10P is not guided, and a radiographic auxiliary tool removably fitted to the radiographic auxiliary tool fitting mechanism 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CT imaging subject mount used for CT imaging such as X-ray CT.

[0002]

2. Description of the Related Art A method for obtaining a tomographic image of a subject by an X-ray CT scanner is conventionally known.

FIG. 9A shows a conventional example of such an X-ray CT scanner. That is, reference numeral 1 denotes a CT imaging mount equipped with an imaging device such as an X-ray tube.
An opening 2 for introducing a subject is provided in the center of the gantry 1. Further, 3 is a bed on which the subject is placed, 4 is a top plate supported on the bed and slidably provided to introduce the subject into the opening 2 of the gantry 1. Shows. Since the top plate 4 needs to transmit X-rays inside the subject, it is made of a material that can transmit X-rays.

FIG. 9B is a view showing the upper surface of the top plate 4. As shown in FIG. 9B, the top plate 4 has an area A from an end on the side opposite to the gantry to almost the center, an area B from almost the center to the edge near the gantry, and an edge on the gantry. It is composed of three areas, area C. The area A is an area for supporting the entire top plate 4 by remaining on the bed 3 when the top board is slid, and the area B is actually inserted into the gantry 1 when the top board is slid so that an image can be taken. Area C is an imaging aid attachment area for attaching an imaging aid such as a grip bar that can be grasped by the subject in order to stabilize the posture of the subject. The imaging aid is used to prevent the image from being blurred when the subject's body moves during imaging. Further, since the photographing aid attachment mechanism is generally formed of a metal member or the like, X-rays do not pass therethrough, and photographing cannot be performed.

[0005]

In the above-mentioned conventional CT object imaging top plate 4, since the imaging assisting tool mounting mechanism is provided only in the region C, there are the following problems. That is, for example, when the abdomen is imaged by inserting it into the gantry 1 from the foot side of the subject, the posture cannot be stabilized because there is no portion where the subject is caught. In particular, when the subject needs to take an image while instilling, it is necessary to fix the arm to perform the instillation, but there is a problem that there is no means for fixing the arm. In addition, various imaging aids may be required depending on the patient's condition, inspection site, etc., but since the imaging aid attachment mechanism is limited in the conventional top plate, the imaging aids that can be used There was also a problem that was limited.

Therefore, according to the present invention, various imaging aids required according to the patient's body, imaging site, etc. can be attached, the required posture of the patient, etc. can be kept stable, and CT
It is an object of the present invention to provide a subject-mounting top plate for CT imaging, which enables accurate imaging.

[0007]

In order to solve the above problems and to achieve the object, the present invention provides a subject mounting top plate for placing a subject and introducing the subject into a gantry used for CT imaging. A main body, a photographing auxiliary tool attaching mechanism installed in a region of the top plate main body which is not introduced into the cradle, and a photographing auxiliary tool detachably attached to the photographing auxiliary tool attaching mechanism are provided.

[0008]

As a result of taking the above-mentioned means, the following effects occur.

[0009] Since an imaging assisting tool mounting mechanism for mounting the imaging assisting tool is provided in a region which is not introduced into the pedestal, various imaging assisting tools required depending on the body of the subject or the like and the imaging site. Can be attached or removed at will. For this reason, it is possible to diversify CT imaging methods, and it is possible to appropriately meet the operator's request.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a CT imaging subject mounting top plate 10 according to this embodiment has imaging assisting tool attachment mechanisms 11a and 11 in an area A which is not introduced into a mount of a top plate body 10P.
b is provided, and in the area C, an imaging aid attachment mechanism 11c having the same structure as 11a and 11b is provided.

2 (a) and 2 (b) show a photographing assisting tool mounting mechanism 1
It is a figure which shows the structure of 1a-11c taking 11a as an example. As shown, holes 12a, 1 penetrating the top plate body 10P.
2b are symmetrically provided about the long axis of the top plate body 10P. An arm stand or the like as an imaging aid is detachably attached to the holes 12a and 12b. Arm rest 20
As shown in FIG. 2 (c), the arm rest main body 21 and the insertion portion 2
2a and 22b. The insertion portions 22a and 22b are provided so as to be detachably insertable into the holes 12a and 12b described above. Next, an operation when CT imaging is performed using the top plate of the first embodiment configured as described above will be described.

FIG. 3 is a diagram showing a case in which images are taken continuously from the waist to the abdomen of the subject. That is, as shown in the figure, the grip bar 23 is fixed to the imaging assisting tool attachment mechanism 11b. Next, the footrest 24 is fixed to the imaging aid attachment mechanism 11c. Then, the subject M is placed with the foot side facing the gantry side, the subject M holds the grip bar 23, and the subject M is introduced into the gantry 1 from the foot side to perform CT imaging.

FIG. 4 is a diagram showing a case of continuously photographing from the waist to the chest of the subject. That is, as shown in the figure, the foot fixing base 25 is installed at an appropriate position, and the arm mounting base 20 is fixed to the imaging auxiliary equipment mounting mechanism 11b. Next, the subject M
Place with the foot side facing the cradle side and bend the knee to fix the foot. Next, the arm of the subject M is placed on the arm rest 20 and introduced into the gantry 1 from the foot side to perform CT imaging. This example is a suitable example when the subject M is photographed while instilling.

5 (a) and 5 (b) are views showing a case where the chest of the subject M is imaged. That is, as shown in FIG. 5A, the arm rest 20 is fixed to the imaging aid attachment mechanism 11c. Next, the head side of the subject M is placed with the head side facing the gantry 1 side, the arm is fixed to the arm pedestal 20, and is introduced into the gantry 1 and CT
Take a picture. FIG. 5B shows a case where the imaging aid is the grip bar 23.

FIG. 6 is a view showing the upper surface of the CT image subject mounting top plate 30 according to the second embodiment of the present invention. Also,
7 (a) and 7 (b) are diagrams showing the shooting assisting tool mounting mechanism in detail, and FIGS. 7 (c) and 7 (d) are views showing the shooting assisting tool mounting mechanism and an arm rest as an example of the shooting assisting tool. Is.

The CT imaging subject placing top plate 30 according to this embodiment is different from the CT imaging subject placing top plate 10 according to the first embodiment in that the structure of the imaging aid attachment mechanism is different. It is in. That is, the photographing auxiliary tool attaching mechanism 31a is provided in the area A of the top plate body 30P, and the photographing auxiliary tool attaching mechanism 31b is provided in the area C.

7 (a) and 7 (b) show a photographing assisting tool mounting mechanism 3
It is a structural diagram of the attachment mechanism shown by taking 1a as an example. The photographing auxiliary tool attachment mechanism 31a is formed on a base 32 fixed on the top plate body 30P and on the upper surface of the base 32, and the top plate body 3 is provided.
It is composed of a dovetail groove 33 provided in parallel along the major axis of 0P. The arm rest 40 is detachably attached to the dovetail groove 33. The arm rest 40 is shown in FIGS.
As shown in, the arm rest main body 41 and the slide portion 42 are provided. The slide portion 42 is slidably engaged with the above-mentioned dovetail groove 33.

In this embodiment thus constructed, the slide portion 42 of the arm rest 40 is slid and inserted from the entrance of the dovetail groove 33, and stopped and fixed at an arbitrary position. Similarly, according to the operator's request, the photographing assist tool attachment mechanism 31b
Also, it is only necessary to fix an arbitrary photographing aid and perform photographing.
Alternatively, a screw may be attached to the slide portion 42 and the tip of the screw may be brought into pressure contact with the inner bottom portion of the dovetail groove or the like at a predetermined position so that the slide portion 42 can be stably temporarily fixed at that position.

Therefore, also in the present embodiment, as in the first embodiment, if necessary, the photographing assisting tool mounting mechanism 31 is used.
CT imaging can be performed by attaching an appropriate imaging aid to a and 31b. In addition, since the imaging assisting tool mounting mechanisms 31a and 31b of the second embodiment can continuously change the position where the imaging assisting tool is mounted, the subject's subject can be more finely tuned than the first embodiment. The posture can be specified.

When the imaging aids are not required, if all the imaging aids are removed as shown in FIG. 8, the imaging aids can be used in the same manner as the conventional CT object imaging top plate. can do. It should be noted that the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

[0021]

According to the present invention, various imaging aids required depending on the patient's body, imaging site, etc. can be attached, and the patient's required posture can be stably maintained. , C
It is possible to provide a subject-mounting top plate for CT imaging capable of accurately performing T-imaging.

[Brief description of drawings]

FIG. 1 is a diagram showing an upper surface of a subject mounting top plate for CT imaging according to a first embodiment of the present invention.

2 (a) and 2 (b) are a top view and a side view of an imaging assisting tool mounting mechanism incorporated in a CT imaging subject mounting top plate according to the embodiment, and FIG. The figure which shows the arm and the arm stand as an example of a mechanism and an imaging aid.

FIG. 3 is a diagram showing an example of use of the CT imaging subject placing top plate according to the embodiment, showing a state in which a footrest and a grip bar are attached as an imaging aid.

FIG. 4 is a view showing an example of use of the CT imaging subject mounting top plate according to the embodiment, showing a state in which a foot fixing base and an arm mounting base are attached as imaging assistants.

FIG. 5 is a view showing an example of use of the CT imaging subject placing top plate according to the embodiment, FIG. 5A shows a state in which an arm stand is attached as an imaging aid, and FIG. The figure which shows the state which attached the grip bar as a tool.

FIG. 6 is a diagram showing an upper surface of a CT imaging subject mounting top plate according to a second embodiment of the present invention.

7A and 7B are a top view and a side view of an imaging assisting tool attachment mechanism incorporated in the CT imaging subject mounting top plate according to the embodiment, and FIGS. The figure which shows the arm mounting base as an example of an auxiliary tool attachment mechanism and an imaging auxiliary tool.

FIG. 8 is a diagram showing another usage example of the CT imaging subject mounting top plate according to the embodiment.

FIG. 9A is a schematic view showing a conventional example of an X-ray CT scanner, and FIG. 9B is a plan view showing a CT image subject mounting top plate of the conventional example.

[Explanation of symbols]

10, 30 ... CT imaging subject placement top plate 10P, 30P ... Top plate body 11a to 11c, 31a, 31b ... Imaging auxiliary tool attachment mechanism 12a, 12b ... Hole 20, 40 ... Arm stand 21, 41 ... Arm stand Main body 22a, 22b ...
Insert part 23 ... Gripping bar 24 ... Foot rest 25 ... Foot fixing base 32 ... Base 33 ... Dovetail groove 42 ... Slide part

Claims (1)

[Claims] 1. A body for placing a subject on which a subject is placed and which introduces the subject into a gantry used for CT imaging, and an imaging aid installed in an area of the pedestal body that is not introduced to the gantry. An object mounting top plate for CT imaging, comprising a tool attachment mechanism and an imaging assistance tool detachably attached to the imaging assistance tool attachment mechanism.