JPS63222741A - Medical apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Field of Application) The present invention is a method for diagnosing or diagnosing a living body in medical diagnostic equipment or medical treatment equipment such as an X-ray scanner device or a magnetic resonance imaging device. A main body part for performing treatment operations, and a bed part having a top plate on which a living body is placed, and the top plate is moved by a top plate moving mechanism so that the living body can be moved in and out of the operating part of the main body part. The present invention relates to a medical device having an improved top plate movement control means.

(Prior Art) An X-ray scanner device will be described as an example of this type of medical device. In other words, is the X-ray scanner device used for diagnostic operations on living organisms? A main body gun equipped with an XMij source, an The main elements are a bed section that can be moved in and out of the room, a control console equipped with a controller and a signal processor, and an X-ray controller.

In this configuration, the main body f! / Place the living body in the area where the X-ray source and X-ray detector are installed by moving the top plate,
x! By emitting s and obtaining an X-ray detection signal, a tomographic image of the living body at the installation site can be obtained.

In addition, by gradually moving the top plate, it is possible to consider the cross section of different parts in the direction of movement of the top plate, that is, multi-slice? Obtainable. To take this multi-slice image,
This is generally done by the following procedure. In other words, the living body, i.e., the subject, is placed on the top plate of the bed section, and with predetermined X-ray conditions set, the operator performs slice imaging using the control console for positioning or visual inspection. As a mode, the slice start position, end position, and slice thickness are specified by manual key input or switch input.

By specifying this slice shooting mode, the controller inside the control car will control the top plate from the slice start position to the end position according to the slice thickness. In order to move the top in steps, a movement command, a stop command, and a movement command are sequentially given to the top moving mechanism in the bed section, and at the same time, an X-ray condition command is given to the X-ray controller when the top is stopped. In addition, the subject is inserted into the imaging section in the gantry of the Elm main body, each having the above-mentioned slice thickness, and at that time, X-rays are irradiated, and X#! Detection signals are obtained from the detector for each slice thickness, are taken into the control console, and are processed to form tomographic images for each slice thickness.

However, the conventional configuration described above has the following problems. In other words, noise from an X-ray controller or the like may enter the signal line from the control console to the bed section (top moving mechanism), causing a large change in the set value of the top moving area, or Due to reasons such as malfunction occurring inside the
The robot may move beyond the set value, move less than the set value, or not move, resulting in a runaway state.

If the top drive system goes out of control, it can put the patient in danger, and the original slice imaging mode cannot be achieved, necessitating re-imaging, and X-ray exposure to the patient. This is problematic because it increases the exposure kt and requires a lot of imaging time.

(Problem to be Solved by the Invention) As described above, in the conventional technology, when an operation other than the set value is performed and the top plate drive system goes into a runaway state, no effective means have been taken to resolve the situation. However, there are problems in that the original movement of the top plate is not controlled, which may put the living body in a dangerous state, or it may not be possible to perform diagnosis or treatment on a desired part of the living body.

Therefore, an object of the present invention is to provide an effective means to resolve the problem even if the top drive system goes out of control due to an operation other than the set value, so that the original movement of the top can be controlled. Therefore, it is an object of the present invention to provide a medical device that prevents a living body from becoming in a dangerous state and allows diagnosis or treatment to be performed on a desired part of the living body.

[One Structure of the Invention (Means for Solving the Problems) The present invention has a structure in which the following means are taken to solve and achieve the above problems. That is, it has a main body part for performing operations for diagnosis or treatment on a living body, and a top plate on which the living body is placed, and the living body can be moved in and out of the operation part of the main body part by the top plate moving mechanism. A medical device comprising a movable bed section, a setting means for setting a movement value of a top plate of the bed part and supplying a command based on the set value to the top plate moving mechanism; a detection means for detecting that the value is different from a value set by the setting means and outputting a detection signal; and a setting means for setting the top plate moving mechanism from the setting means in response to the detection signal from the detection means. A stop means for stopping the supply of a value command, an operation return means for releasing the stop of the stop means by an operator's operation, and a control for releasing the stopped state of the stop means when the stop operation is performed by the operation return means. The present invention is characterized by comprising a return means.

(Function) According to such a configuration, when the detecting means detects that the top plate of the bed section is in a state different from the setting value set by the setting means, first, the setting means sets the stop means to It is possible to stop the command supply of the set value to the top plate moving mechanism and stop the movement of the top plate, thereby preventing runaway of the top plate drive system when an operation other than the set value is performed. can. Further, this stoppage of command supply can be canceled by the operator's operation, and when this stoppage operation is performed, the stoppage state of the stoppage of command supply is released, and normal movement control of the top plate can be resumed. It becomes like this.

(Embodiment) An embodiment of the medical device according to the present invention will be described below as an example of application to an X-ray CT scanning device.

FIG. 1 is a perspective view showing the configuration of an X-ray CT scanner device of this embodiment, and FIG. 2 is a block diagram showing the configuration of a signal system of the same embodiment.

As shown in FIG. 1, the X-ray scanner device of this embodiment is
A main unit 1, which is placed in the imaging room R and is equipped with an X-ray source, an X-ray detector, etc. (not shown) and has a patient insertion hole 1a formed therein; It has a top plate 2 on which the subject P is placed, and the top plate 2 moves the subject P into and out of the subject insertion hole 1a of the main body gantrino using a top plate moving mechanism 3. The bed section 4 is configured as follows.
The main elements are an X-ray controller 5 located inside the imaging room R, and a control console 6 located outside the imaging room R and having a controller and a signal processor. are connected by a cable 7.

In addition, the operator S can access the main unit in the shooting room R from the control console side (outside the shooting room) through the glass window RW of the shooting room R, and the operator S can access the main body gantrino and the bed section 4 from the control console 6. It is possible to come and go.

As shown in FIG. 2, the control console 6 (controller) is connected to the bed section 4.
A top plate moving mechanism 3 using a motor M that sets a movement value of the top plate 2 and sends a command based on the set value to the bed section 4.
The setting section 6a is provided to supply the information to the user. The set value by the setting unit 6a is automatically calculated and given by the operator SiC designating the photographing conditions, or is directly set by the operator S by key-in or switch input. The bed section 4 is configured to detect movement of the top plate 2 using a potentiometer, etc.
We are prepared.

The control console 6 receives the amount of movement of the top plate from the sensor 4a and the setting section 6a.
A state different from the set value, for example, an overslide, is detected by comparing the set value with the set value, and the stop unit 6c stops supplying the command of the set value from the setting unit 6a to the top moving mechanism 3. It is provided with a release part 6b that issues a stop signal. The control console 6 includes a stop section 6c1 that stops the command supply of set values from the setting section 61 to the top moving mechanism 3 in response to a stop command given from the release section 6b. The bed section 4 includes a return switch 4b that issues a release command to the release section 6b in order to release the stop operation of the stop section 6b by an operation by the operator S. The return switch 4b is in a REMOTE mode in which set values are accepted when switched off, and in a LOCAL mode in which set values are not accepted when switched on.

The operation of the apparatus of this embodiment configured as described above will be explained. That is, the operator S is located at the control console 6 under the subject P' (i- placed on the top plate 2 of the bed section 4 and predetermined X-ray conditions are set), and from this control console The slice start position, end position, and slice thickness are designated as the slice imaging mode using the prepared positioning image or visually by key input or switch input.

In response to this designation of the slice photographing mode, the controller in the control console 6 outputs a setting value from the setting section 6a by the setting section 6& to move the top sheet metal step by step from the slice start position to the end position according to the slice thickness. This set value is given to the top plate side 7tlI mechanism 3 via the stop part 6 and the cable 7, and the return switch 4b is in the REMOTE mode that accepts the set value when the switch is turned off, thereby driving the top plate moving mechanism 3. do.

Here, the top plate 2 is moved by the drive of the top plate moving mechanism 3,
The moving lid is detected by the sensor 4a.

The release unit 6b compares the amount of movement of the top plate from the sensor 4a with the setting value set by the setting unit 6a, and when it is determined that the amount of movement of the top plate from the sensor 4a is not different from the set value and that the control system is not out of control, the previous The operation continues, and when the top plate 2 moves in steps by a set value and stops, an X-ray condition command is given to the X-ray controller 5.

As a result, the subject P is inserted into the imaging section in which the main body is located in the interior of the camera, and X-rays are irradiated at that time, and a detection signal is obtained from the X-ray detector for each slice thickness, and control is performed. The signal is input to the console 6 (signal processor) and subjected to signal processing for forming a tomographic image for each slice thickness.

On the other hand, the release unit 6b compares the amount of movement of the top plate from the sensor 4a with the set value set by the setting unit 611, and determines that the control system is out of control due to, for example, oversliding, which is different from the set value. At this time, the release section 6b gives a stop command to the stop section 6c, and stops the command supply of the set value from the setting section 6a to the top moving mechanism 3. This stops the movement of the top plate 2 and stops the control system from running out of control. Here, the return switch 4b is turned on and enters the LOCAL mode in which no set value is accepted.

Here, the operator S enters the imaging room R, goes to the bed section 4, performs the necessary treatment on the subject P, and also operates the stop operation of the stop section 6b. In order to solve the problem by the operation of the person S, the return switch 4bf is turned off to enter the REMOTE mode in which the set value is accepted. By turning on the return switch 4b, the stop command from the release section 6b to the stop section 6c is canceled, and the set value from the setting section 6a is again given to the top drive mechanism 3 via the stop section 6 and the cable 7. The return switch 4b is an RE that accepts the set value when the switch is turned on.
By being in MOTE mode, the top plate moving mechanism 3? Becomes driven.

Here, the operator S returns to the control console 6, and when the top plate 2 moves step by step by the set value and stops, the control console 6 (controller) gives an X-ray condition command to the X-ray controller 5, and Radiation is irradiated, and a detection signal is obtained from the X-ray detector for each slice thickness, which is input to the control console 6 (signal processor), where signal processing is performed to form a tomographic image for each slice thickness. It will be done.

As described above, according to this embodiment, even if an operation other than the set value is performed and the top drive system goes out of control, the patient P
It is possible to prevent the device from becoming dangerous, and it is also easy to restore the operation, so the patient P can be
It becomes possible to photograph the slice e again.

The present invention is not limited to the above-mentioned embodiments. For example, in addition to a configuration in which the runaway of the control system in the movement of the top plate is determined based on the actual measurement value of the movement amount by the sensor 4a, the setting unit 6a
When the elapsed time from the start of supply of the command to the top moving mechanism 3 to the start of movement of the top exceeds a predetermined time, for example, the time required to move two steps is counted by a counter, and this count value is set to a predetermined value. The configuration may be such that it is determined that there is a runaway when the value exceeds the value, or both determination conditions may be used in parallel. In addition, various modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, the movement value of the top plate of the bed section is set and a command based on the set value is issued. a setting means for supplying a signal to the top moving mechanism; a detection means for detecting that the top of the bed section is in a state different from a value set by the setting means; and a detection means for outputting a detection signal; A stopping means for stopping the command supply of a set value from the setting means to the top plate moving mechanism in response to a detection signal, an operation return means for releasing the stoppage of the stop means by an operation of an operator, and the operation return means. Is the stopping state of the stopping means when the stopping operation is performed? When the detecting means detects that the top plate of the bed section is in a state different from the value set by the setting means,
First, the setting means acts on the stopping means to stop supplying a set value command to the top moving mechanism,
Does the top drive system go out of control when the top plate stops moving and then moves outside of the set value? It can be prevented. Further, this stoppage of command supply can be canceled by the operator's operation, and when this stoppage operation is performed, the stoppage state of the stoppage of command supply is released, and normal movement control of the top plate can be resumed. It becomes like this.

Therefore, according to the present invention, even if the top drive system goes out of control due to an operation other than the set value, an effective means is taken to resolve the problem so that the original movement of the top can be controlled. Thus, it is possible to provide a medical device that prevents a living body from becoming in a dangerous state and allows diagnosis or treatment to be performed on a desired part of the living body.

[Brief explanation of the drawing]

FIG. 2 is a perspective view showing the configuration, and FIG. 2 is a block diagram showing the configuration of the signal system of the same embodiment. DESCRIPTION OF SYMBOLS 1... Main body force center, 2... Top plate, 3... Top plate drive mechanism, 4... Bed part, 4a... Sensor, 4b...
...Return switch, 5...X-ray controller, 6...Control console, 6a...Setting section, 6b...Cancel section, 6c...
Stop part, 7...cable. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2

Claims (4)

[Claims] (1) It has a main body part that performs operations for diagnosis or treatment on the living body, and a top plate on which the living body is placed, and the living body can be taken in and out of the operation part of the main body part by the top plate moving mechanism. A medical device comprising: a setting means for setting a movement value of a top of the bed and supplying a command based on the set value to the top moving mechanism; detection means for detecting that the board is in a state different from the setting value by the setting means and outputting a detection signal;
a stopping means for stopping the command supply of a set value from the setting means to the top moving mechanism in response to a detection signal from the detecting means; and an operation return means for releasing the stopping of the stopping means by an operation of an operator. A medical device comprising: a control return means for releasing the stop state of the stop means when the stop operation is performed by the operation return means. (2) The detecting means is configured to detect that when the elapsed time from the start of supply of the command supplied from the setting means to the top plate moving mechanism to the start of movement of the top plate exceeds a predetermined time, the top plate is moved by the setting means. The medical device according to claim 1, characterized in that the medical device is configured to recognize that the operation is other than a command and output a detection signal. (3) The detection means is configured to output a detection signal when it is determined that the movement value of the top plate is different from the set amount supplied from the setting means to the top movement mechanism. A medical device according to claim 1. (4) The medical device according to claim 1, characterized in that an operation return means is installed in the main body portion or the bed portion.