JPH11253437A - Ct device and table device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily, accurately and rapidly move a table and a cradle to the respective positions desired by an operator. SOLUTION: A table T and a cradle C are moved to the respective desired positions, and the desired positions are stored as preset positions at the press of a setting button 10s. When an operator presses a presetting button 10p, the table T and the cradle C are automatically moved to the preset positions. Therefore, the time to change patients can be reduced and the throughput of a CT device can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CT apparatus and a table apparatus, and more particularly, to a CT apparatus and a table apparatus capable of easily, accurately and quickly moving a table and a cradle to an arbitrary position desired by an operator. About.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional CT (Computed Tomomogr).
FIG. 2 is an essential part perspective view showing an example of an aphy) device. The CT device 7000 includes a table device 700 including a table T that moves up and down and a cradle C that moves horizontally on the table T, and a bore B through which the cradle C enters and exits.
And a gantry G having R.

The gantry G has an up button 10u for performing an operation of raising the table T, a down button 10d for performing an operation of lowering the table T, and a direction for inserting the cradle C into the bore BR. An in button 10i for performing an operation of moving horizontally to
An out button 10o is provided for performing an operation of horizontally moving the cradle C in a direction to exit the bore BR.

As a normal operation, first, the cradle C
To the out limit (that is, cradle C
Is stored in the table T), and the table T is lowered to the down limit (most lowered). In this position (called the home position), the patient lies on the cradle C and pushes the up button 10
Hold down u to raise the table T, and then press and hold the in button 10i until the proper horizontal position is reached, to insert the cradle C into the bore BR. Then, CT imaging is performed. When the CT imaging is completed, the cradle C is moved to the out limit by continuously pressing the out button 10o, and then the table T is lowered to the down limit by continuously pressing the down button 10d. Then, the patient gets off the cradle C.

On the other hand, when the patient is carried on a stretcher, the stretcher is attached to the side of the table device 700 and the table T is raised by pressing the up button 10u until the patient reaches the same height as the stretcher. Then, move the patient from the stretcher to the cradle C. Then, press the up button 10 until it reaches the appropriate height.
Hold down u to raise the table T, and then press and hold the in button 10i until the proper horizontal position is reached, to insert the cradle C into the bore BR. Then, CT imaging is performed. When the CT imaging is completed, the out button 10o is kept pressed to move the cradle C to the out limit, and then the down button 10d is kept pressed to lower the table T until it reaches the same height as the stretcher. And move it onto the stretcher. Thereafter, the table T is lowered to the down limit by keeping the down button 10d pressed.

FIG. 8 is a flowchart of an up button process activated when the up button 10u is pressed. In step U1, it is checked whether the limit is the upper limit. If the limit is the upper limit, the process ends. If the limit is not the limit, the process proceeds to the step U2. In step U2, the table T
To start rising. In step U3, it is checked whether the upper limit has been reached. If the upper limit has been reached, the process is terminated, and if not, the process proceeds to step U4. In step U4, it is checked whether the up button 10u has been pressed. If it has been pressed, the process returns to step U3. If it has not been pressed, the process ends. The down button process activated when the down button 10d is pressed is the same as above.

FIG. 9 is a flowchart of an in-button process activated when the in-button 10i is pressed. In step I1, the in-limit (cradle C
It is checked if it is the in-R position, and if it is not the in-limit, the process is terminated. If it is not the in-limit, the process proceeds to step I2. In step I2, horizontal movement of the cradle C is started in a direction to enter the bore BR. In step I3,
It is confirmed whether or not the in-limit has been reached. If the in-limit has been reached, the processing is terminated. Step I
In step 4, it is confirmed whether or not the in button 10i has been pressed. If the in button 10i has been pressed, the process returns to step I3. If the in button 10i has not been pressed, the process ends. The out button 10o
The out button process activated when is pressed is the same as above.

[0008]

In the conventional CT apparatus, when the operator wants to move the table and the cradle to a desired position, the operator checks the positions of the table and the cradle while checking the positions of the table and the cradle. , It is necessary to keep pressing the in button 10i or the out button 10o and release the button at the moment when the desired position is reached. There is also a problem that the position is likely to be incorrect. Further, there is a problem that it takes time to adjust the position accurately. Therefore, an object of the present invention is to provide a CT apparatus and a table apparatus that can easily, accurately and quickly move a table and a cradle to an arbitrary position desired by an operator.

[0009]

SUMMARY OF THE INVENTION In a first aspect, the present invention is directed to a table apparatus having a vertically moving table and a cradle moving horizontally on the table, and a gantry having a bore through which the cradle enters and exits. A preset position input means for an operator to input preset positions of the table and the cradle; a preset instruction input means for the operator to input a preset instruction; and the preset instruction And a moving means for moving the table and the cradle to the preset position when a is input. In the CT apparatus according to the first aspect, if an arbitrary position desired by the operator is input, the table and the cradle move to an arbitrary position desired by the operator only by inputting a preset command. As a result, the operation becomes easy, the position becomes accurate, and the movement can be completed in the shortest time.

According to a second aspect, the present invention is a table apparatus provided with a table that moves up and down and a cradle that moves horizontally on the table, wherein an operator inputs preset positions of the table and the cradle. Preset position input means for inputting a preset command for the operator to input a preset command, and moving means for moving the table and the cradle to the preset position when the preset command is input. Provided is a table device characterized by comprising: In the table device according to the second aspect, if an operator inputs an arbitrary position desired, the table and the cradle move to an arbitrary position desired by the operator only by inputting a preset command. As a result, the operation becomes easy, the position becomes accurate, and the movement can be completed in the shortest time.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings. Note that the present invention is not limited by this. -First Embodiment- FIG. 1 is a perspective view of a main part of a CT apparatus according to a first embodiment of the present invention. The CT apparatus 1000 includes a table apparatus 100 including a table T that moves up and down and a cradle C that moves horizontally on the table T, and a gantry G having a bore BR into and out of which the cradle C enters and exits.

The gantry G has an up button 10u for performing an operation of raising the table T, a down button 10d for performing an operation of lowering the table T, and a direction for inserting the cradle C into the bore BR. An in button 10i for performing an operation of moving horizontally to
An out button 10o for performing an operation of horizontally moving the cradle C in a direction of being taken out of the bore BR, a setting button 10s for the operator to set preset positions of the table T and the cradle C, and A preset button 10p for inputting is provided.

FIG. 2 is a configuration diagram of the table device 100. When the out button 10o is released, the Bo signal becomes "L", and when it is pressed, the Bo signal becomes "H".
When the in button 10i is released, the Bi signal becomes "L", and when it is pressed, the Bi signal becomes "H".
When the up button 10u is released, the Bu signal becomes "L", and when it is pressed, the Bu signal becomes "H".
When the down button 10d is released, the Bd signal becomes "L", and when the down button 10d is pressed, the Bd signal becomes "H".
When the preset button 10p is released, the Bp signal becomes "L", and when the preset button 10p is pressed, the Bp signal becomes "H". When the setting button 10s is released, the Bs signal becomes "L", and when the button is pressed, the Bs signal becomes "H".

The microprocessor 50 monitors the cradle position Lc fed back from the cradle horizontal moving section 40c. If the cradle position Lc is at the out limit, the Mo signal is set to "L". Is set to “H”. If the cradle position Lc is at the in-limit, the Mi signal is set to “L”; otherwise, the Mi signal is set to “H”.
I have to. Further, the microprocessor 50 monitors the table position Lt fed back from the table elevating unit 40t, and sets the Mu signal to “L” if the table position Lt is the up limit, and sets the Mu signal to “L” if the table position Lt is not the up limit. H ”. If the table position Lt is at the down limit, the Md signal is set to "L", and if not, the Md signal is set to "H". Further, the microprocessor 50 is provided in FIG.
Po signal, except during “Move to preset position”
The Pi signal, Pu signal and Pd signal are set to "L". Further, the microprocessor 50 monitors the Bs signal, and when detecting the rise (change from “L” to “H”), the “preset position setting process” in FIG.
Start Further, the microprocessor 50 monitors the Bp signal, and its rise (from “L” to “H”).
Is detected, the “movement processing to the preset position” in FIG. 4 is started.

The cradle horizontal moving section 40c horizontally moves the cradle C in a direction to exit from the bore BR while "H" is input from the OR circuit 30o, and the OR circuit 30i
While "H" is being input from the cradle C, the cradle C is horizontally moved in a direction to enter the bore BR.
Cradle C is not moved while "H" is not input from any of i. Also, the table elevating unit 40t
Raises the table T while "H" is input from the OR circuit 30u, and lowers the table T while "H" is input from the OR circuit 30d.
The table C is not moved while "H" is not being input from any of u and 30d.

When the cradle C is at a horizontal position other than the out limit and the out button 10o is pressed, the Bo signal becomes "H" and the Mo signal is "H", so that the output of the AND circuit 20o is output. It becomes "H" and the output of the OR circuit 30o also becomes "H". Therefore, the cradle horizontal moving unit 40c horizontally moves the cradle C in a direction of going out of the bore BR. When you release the out button 10o, B
The signal o becomes "L", the output of the AND circuit 20o also becomes "L", and the output of the OR circuit 30o also becomes "L".
Therefore, the cradle horizontal moving unit 40c
Stop moving. When the cradle C reaches the out limit, the Mo signal becomes "L", so that the output of the AND circuit 20o also becomes "L" and the output of the OR circuit 30o also becomes "L". Therefore, the cradle horizontal moving unit 40c
Stops the movement of the cradle C. Similarly, when the cradle C is at a horizontal position other than the in-limit and the in button 10i is pressed, the cradle horizontal moving unit 40c
The cradle C is horizontally moved in a direction to enter the bore BR. When the in button 10i is released or the cradle C reaches the in-limit, the cradle horizontal moving unit 40c
Stop the movement of the cradle C.

Similarly, when the up button 10u is pressed when the table T is at a position other than the up limit, the table elevating unit 40t raises the table T. When the up button 10u is released or when the table T reaches the up limit, the table lifting / lowering unit 40t stops lifting the table T. Similarly, when the table T is at a position other than the down limit and the down button 10d is pressed,
The table elevating unit 40t lowers the table T. When the down button 10d is released or the table T reaches the down limit, the table elevating unit 40t moves the table T
Stop descent.

FIG. 3 is a flowchart of the "preset position setting process". In step S1, the horizontal position Lc of the cradle C is read and stored as a preset position. In step S2, the height position Lt of the table T is read and stored as a preset position. Therefore, the operator moves the table T and the cradle C to a desired position (for example, the horizontal position of the cradle C is the out-limit, and the height of the table T is the height corresponding to the stretcher), and the setting button Bs When is pressed, the desired position is stored in the microcomputer 50 as a preset position.

FIG. 4 shows "movement processing to a preset position".
FIG. In Step P1, the horizontal position Lc of the cradle C is read, and it is determined whether the horizontal position Lc is equal to the preset position. If they are not equal, the process proceeds to Step P2, and if they are equal, the process proceeds to Step P3. In step P2, the cradle C is moved horizontally by setting the Mo signal or the Mi signal to "H" so that the difference between the horizontal position Lc of the cradle C and the preset position becomes small, and the horizontal position Lc of the cradle C is changed.
Is equal to the preset position, the Mo signal and the Mi signal are set to "L", and the cradle C is stopped. Then, the process proceeds to Step P3. In Step P3, the height position Lt of the table T is read, and it is determined whether the height position Lt is equal to the preset position. If they are not equal, the process proceeds to Step P42, and if they are equal, the process ends. In step P4, the table T
The table T is raised and lowered by setting the Mu signal or the Md signal to "H" so that the difference between the height position Lt of the table T and the preset position becomes small. When the height position Lt of the table T becomes equal to the preset position, the Mu signal and the Md signal Is set to "L" and the table T is stopped. Then, the process ends. Therefore, the table T and the cradle C are moved to the set desired positions only by the operator pressing the preset button Bp.

According to the above-described CT apparatus 1000 and table apparatus 100, if any position desired by the operator is set, the table T and the cradle can be set at any position desired by the operator simply by pressing the preset button 10p. C moves automatically. Thereby, the operation becomes easy, the position becomes accurate, and the movement can be completed more quickly.

Second Embodiment As shown in FIG. 5, the operator console OP may be provided with a setting button 10s, a preset button 10p, and other buttons.

Third Embodiment As shown in FIG. 6, a table device 300 movable by wheels W is provided, and the table device 300 has a setting button 10s and a preset button 1
0p and other buttons may be provided. The power for raising and lowering the table T and moving the cradle C may be a battery or may be supplied from outside.

[0023]

According to the CT apparatus and the table apparatus of the present invention, if the operator inputs the desired position, the table and the cradle can be moved to the desired position only by inputting a preset command. Moves. Thereby, the operation becomes easy, the position becomes accurate, and the movement can be completed more quickly. Therefore, it is possible to shorten the time required to change patients and improve the throughput of the CT apparatus.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a CT apparatus according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a table device according to the first embodiment of the present invention.

FIG. 3 is a flowchart of a preset position setting process.

FIG. 4 is a flowchart of a moving process to a preset position.

FIG. 5 is a perspective view of an operator console according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a table device according to a third embodiment of the present invention.

FIG. 7 is a perspective view of a main part of an example of a conventional CT apparatus.

FIG. 8 is a flowchart of an up button process.

FIG. 9 is a flowchart of an in-button process.

[Explanation of symbols]

 10s Setting button 10p Preset button 40c Cradle horizontal moving unit 40t Table elevating unit 50 Microprocessor 100,300 Table device 1000 CT device BR bore C cradle G Gantry T table

Claims (2)

[Claims] 1. A CT apparatus comprising: a table apparatus having a table which moves up and down and a cradle which moves horizontally on the table; and a gantry having a bore through which the cradle enters and exits, wherein the table and the cradle Preset position input means for the operator to input a preset position, preset command input means for the operator to input a preset command, and the table and the cradle being preset when the preset command is input. And a moving means for moving to a position. 2. A table device comprising a table which moves up and down and a cradle which moves horizontally on the table, wherein preset position input means for an operator to input preset positions of the table and the cradle; A table comprising: a preset command input unit for an operator to input a preset command; and a moving unit for moving the table and the cradle to the preset position when the preset command is input. apparatus.