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Tomograph

A technology of tomography and shooting position, which is used in measurement devices, computed tomography scanners, diagnosis, etc., can solve problems such as difficult alignment and time-consuming, and achieve good position accuracy, high-efficiency shooting, and easy repeatability. Effect

Inactive Publication Date: 2012-11-21
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the operation of inserting the subject into the opening of the gantry, it is necessary to raise the top plate in the vertical direction, then move the top plate horizontally, and then transfer the top plate into the opening of the gantry. Therefore, it is difficult to perform alignment, and it will take a lot of time in the alignment process

Method used

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Embodiment 1

[0051] Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. In addition, as the tomographic imaging apparatus of the present invention, a PET apparatus for the head will be described as an example. figure 1 It is a side view showing a schematic structure of the head PET device of Example 1 with a partial cutaway, figure 2 is its front view. in addition, image 3 is a diagram showing the chair movement mechanism, Figure 4 It is a block diagram showing the control system of the head PET apparatus.

[0052] refer to figure 1 as well as figure 2 . The head PET apparatus 1 of this embodiment includes a gantry 3 , a chair 5 on which the subject M sits, and a chair moving mechanism 7 for moving the chair 5 to an imaging position. In addition, the head PET apparatus 1 corresponds to the tomographic imaging device in the present invention, and the chair moving mechanism 7 corresponds to the imaging position moving mechanism in...

Embodiment 2

[0070] Next, Embodiment 2 of the present invention will be described. Figure 9 It is a side view showing a schematic structure of the head PET device of Example 2, partially cut away. Figure 10 From Figure 9 The symbol V indicates the structure of the gantry moving mechanism. In addition, the description of the structure overlapping with each of the above-mentioned embodiments is omitted.

[0071] refer to Figure 9 . On the basis of the structure of Embodiment 1, the head PET apparatus 1A of Embodiment 2 further has a scanning frame moving mechanism 41. The scanning frame moving mechanism 41 drives the scanning frame 3, and the subject M is connected to the scanning frame. The central axis 9a of the opening 9 of the gantry 3 is inserted into the opening 9 of the gantry 3 so as to be parallel. The gantry 3 is supported by a pair of support columns 11 via a gantry moving mechanism 41 . like Figure 10 As shown, the scanning frame moving mechanism 41 has a support tabl...

Embodiment 3

[0076] Next, Embodiment 3 of the present invention will be described. Figure 11 It is a side view showing a schematic structure of the head PET apparatus of Example 3 partially cut away. in addition, Figure 12 It is a figure which shows the structure of a chair angle change mechanism. In addition, the description of the structure overlapping with each of the above-mentioned embodiments is omitted.

[0077] refer to Figure 11 as well as Figure 12 . In addition to the above-described embodiments, the head PET apparatus 1B further includes a chair angle changing mechanism 57 for changing the angle between the backrest portion 5b and the seat portion 5c of the chair 5 . like Figure 12 As shown, the backrest portion 5b and the seat portion 5c of the chair 5 are connected so as to be rotatable around the support shaft 59 . Specifically, the support shaft 59 is fixed to the backrest part 5b, and the seat part 5c is connected to the backrest part 5b so as to be rotatable a...

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Abstract

Disclosed is a tomograph that includes a gantry (3) having an opening (9) of which central axis (9a) is inclined such that the opening (9) faces obliquely downward; a chair (5) disposed obliquely below the gantry (3) and having a face that carries a subject (M) and that is inclined such that the central axis (9a) of the opening (9) and the body axis (A) of the subject (M) are parallel to each other; and a chair transferring mechanism (7) that drives at least one of the gantry (3) and the chair (5) and that inserts the subject (M) into the opening (9) in a direction parallel to the central axis (9a) of the opening (9) of the gantry (3). With this, tomograms can be efficiently produced while the subject (M) is in a safe and comfortable position.

Description

technical field [0001] The present invention relates to a tomographic imaging apparatus for capturing a tomographic image by inserting a subject into an opening of a gantry. Background technique [0002] like Figure 19 As shown, a conventional tomographic imaging apparatus 201 has: a gantry 203 having a cylindrical opening 202 for inserting a subject M, and a central axis 202a of the opening 202 is arranged in the horizontal direction; a bed device 205 , which has a top board 204 in which the subject M is placed in a supine position; and a top board moving mechanism 207 that moves the top board 204 in the vertical direction and the horizontal direction. As the tomography apparatus 201 having such a configuration, for example, a PET (Positron Emission Tomography) apparatus is cited. [0003] The PET apparatus has a multi-layer detector ring 213 on the outer periphery of the opening 202 of the gantry 203. The multi-layer detector ring 213 is formed by arranging a multi-layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B6/04G01T1/161
CPCA61B6/4482A61B6/037A61B6/0478A61B6/0407A61B6/501A61B6/0457A61B6/04A61B6/0487A61B6/4447A61G2210/50
Inventor 天野昌治
Owner SHIMADZU SEISAKUSHO CO LTD
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