JP4234946B2 - Radiation detector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a radiation detection apparatus that measures the intensity of radiation emitted by a radioactive substance injected into the body using a probe including a radiation sensor.
[0002]
[Prior art]
In surgical operations for tumors centering on breast cancer, methods for minimizing the number of tumors to be removed have been studied. In vitro lymph node detection methods, which are important in determining the extent of tumor removal, are being investigated. It is possible to inject a radioactive substance into the tumor site, search / detect the lymph node closest to the tumor after a certain period of time from outside the body using a radiation detector, and quickly detect the presence of tumor metastasis in the detected lymph node by rapid pathological diagnosis. Judgment is made, and the tumor extraction range is determined based on the result.
[0003]
This radiation detection apparatus is connected to a probe having a radiation sensor inside, and the probe is connected to the probe via a cable, and a radiation intensity detection value output from the probe is input, and the radiation detection is performed to display and store the detection value. The apparatus main body is configured as a main part. Also, if the radiation detection device body is far from the user and the display of the detection value cannot be seen, place the radiation detection device body in a position where it is easy to see a small display device separate from the radiation detection device body. The data of the radiation intensity detection value was sent and displayed on the display device via the cable.
[0004]
[Problems to be solved by the invention]
However, the above-described separate display device simply includes a display unit that displays measurement data on one surface of a rectangular parallelepiped case. For this reason, for example, when a radiological examination is performed with a subject lying on a bed, a display device is placed on the bed or on a table on which medical instruments around the bed are placed. However, in such a case, the position of the display device is not fixed, and the display unit of the display device is not easy to see for the user. Further, when placing the display device on a table or the like, it can only be placed so that one surface of the rectangular parallelepiped case of the display device contacts the plane of the table. Therefore, the direction in which the display unit of the display device faces is determined by the shape of the case of the display device, and the direction of the display unit may not be easy to see for the user.
[0005]
The present invention has been made in view of the above-described problems, and an object of the present invention is to install a display device separate from the main body of the radiation detection device so that it can be easily seen.
[0006]
[Means for Solving the Problems]
An apparatus according to the present invention is a radiation detection device that measures the intensity of radiation emitted by a radioactive substance injected into the body, and obtains radiation intensity data based on the output of a probe that receives radiation. And a display device provided as a separate device from the radiation detection device main body, wherein the display device detachably holds the display device main body for displaying the radiation intensity data. A support member group including a first support member to be attached to the attachment object, and a second support member as a stand that detachably holds the display device main body and is installed on a plane, The first support member has an attachment portion made of an elastic material, and the display device is attached to the pipe by pressing the attachment portion onto the pipe as the attachment object. The display device can be attached to the arm by pressing and fitting the attachment portion to the arm as the attachment object, and the first support member and the second support member can be attached to the arm. Each of the support members can change the orientation of the display device main body, and the support member to be used is selected from the support member group . As a result, a display device separate from the main body of the radiation detection device can be fixed to the object, and the display device can be easily installed.
[0010]
The support members and the display device main body are preferably detachable. Thereby, it can replace with a suitable support member according to a condition.
[0011]
In an embodiment described later, the radiation detection device is a display device of a radiation detection device that measures the intensity of radiation emitted by a radioactive substance injected into the body, and obtains radiation intensity data based on the output of a probe that receives radiation. display device provided as a device separate from the main body of the apparatus includes a display device body for displaying the radiation intensity data obtained by the radiation detection device main body, attached to the object attached to the display device main body And a supporting member to be fixed.
[0012]
In an embodiment described later, the radiation detection device is a display device of a radiation detection device that measures the intensity of radiation emitted by a radioactive substance injected into the body, and obtains radiation intensity data based on the output of a probe that receives radiation. display device provided as a device separate from the main body of the apparatus includes a display device body for displaying the radiation intensity data obtained by the radiation detection device main body, can hold the display device main body in at least two orientation A support member.
[0013]
In an embodiment to be described later, a radiation detection apparatus that measures the intensity of radiation emitted by a radioactive substance injected into the body using a probe equipped with a radiation sensor is a voice that reads out the measured value of the measured radiation intensity. Output means are provided. Thereby, the person around the radiation detection apparatus can accurately recognize the measurement value of the radiation intensity measured by the radiation detection apparatus.
[0014]
In an embodiment described later, a radiation detection apparatus that measures the intensity of radiation emitted by a radioactive substance injected into the body using a probe including a radiation sensor is in accordance with a format instructed by a user who uses the radiation detection apparatus. Display means for displaying measurement data of radiation intensity is provided. Thereby, the user can arbitrarily set the display of the measurement data of the radiation detection apparatus.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
First, the first embodiment will be described. FIG. 1 is a perspective view of the radiation detection apparatus according to the first embodiment. The radiation detection apparatus according to the present embodiment is roughly divided into a probe 68 having a radiation sensor therein and detecting radiation, and a radiation detection apparatus main body 70 that is connected to the probe 68 by a cable and displays and stores radiation detection values. And a small display device 10 that is a separate body from the radiation detection device main body 70.
[0017]
Among these, the display apparatus 10 is shown in FIG. The display device 10 includes a display device body 12 and a support member 14. The display device body 12 is formed by housing a circuit board having a display unit 18 and a speaker 27 on one surface inside a substantially rectangular parallelepiped case 16. The display unit 18 is arranged in accordance with an opening provided in the case 16, and numerical values and graphs shown therein can be read from the opening. The speaker 27 is arranged in accordance with a plurality of through holes 29 provided in the case 16, and can output sound through the through holes 29. A cylindrical protrusion 20 is provided on each of two side surfaces of the case 16 located on the left and right sides of the surface having the opening. The support member 14 is provided with two substantially C-shaped holding portions 24 corresponding to the protrusions 20, and the holding member 24 is engaged with the protrusions 20 to hold the display device main body 12. A U-shaped holding member 22, and an attachment portion 26 which is connected and fixed to the holding member 22 and can be attached to a pipe-like structure which is an example of an attachment object, for example, a pipe 34 which is a part of a bed; Consists of. Here, the object to be attached is a bed pipe in this embodiment, but in addition to this, it is in a position that is easy for the user to see, such as a table on which a surgical instrument is placed or the arm of the person who uses the radiation detection apparatus. Can be attached to various objects. By fitting the two protrusions 20 of the display device main body 12 into the holding portion 24 of the support member 14, the protrusion 20 and the holding portion 24 are engaged, and the display device main body 12 is rotatably held by the holding member 22. Is done. Moreover, the protrusion 20 can also be removed from the holding | maintenance part 24, and can be attached or detached. Further, the holding member 22 has a structure that can rotate with respect to the support member 14. Sockets 28 are provided on the left and right side surfaces of the case 16, and a connector 32 fixed to one end of a cable 30 extending from the main body of the radiation detection apparatus is inserted into the socket 28, whereby a circuit board inside the case 16. And the radiation detection apparatus main body are connected, and the measurement data of the radiation intensity is transmitted from the radiation detection apparatus main body to the circuit board. The user can select one of the left and right sockets 28 according to the use situation, and can insert the connector 32 into the socket 28.
[0018]
The mounting portion 26 of the display device 10 described above is made of an elastic material, and is attached to the pipe 34 as shown in FIG. 3 by being pressed and fitted into the pipe 34 of the bed that is an attachment target. Thereby, it can fix and install in the pipe 34 in the position where the display apparatus 10 is easy to see. For example, an inspector of a radiological examination tends to concentrate on the task of searching for a source of radiation while holding a probe, but attaches the display device 10 of the present embodiment to a bed pipe 34 in the field of view of the inspector. Thus, the inspector can work while looking at the measurement result. In addition, the display device 10 may be attached at a position that is easy for a radiation examination assistant around the examiner to see.
[0019]
In this embodiment, since the display device body 12 of the display device 10 is rotatably attached to the support member 14, the posture of the display device body 12 can be changed arbitrarily. The display unit 18 can be easily viewed by a user of the radiation detection apparatus such as an examiner or an assistant. As another simplified embodiment, the display device body 12 can be configured to be held by the support member 14 so that the posture of the display device body 12 can be switched between two postures. In this case, the posture of the display device main body 12 may be any one of the two postures in which the display unit 18 of the display device main body 12 faces the user. Thereby, the display part 18 of the display apparatus main body 12 can be made easy to see for a user.
[0020]
Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment shown in FIG. 4, the display device body 42 has the same configuration as the display device body 12 of the first embodiment, and the support member 44 is the support member 14 of the first embodiment. Unlike the wrist, it has a shape corresponding to the wrist part of the arm. As a result, the user can use the display device 40 by fixing the display device 40 to an arm that is easy to see for the user. Also in this embodiment, the display device main body 42 is rotatably held by the holding member 43. Further, when the display device 40 is fixed to the user's arm as described above, as shown in FIG. 5, a ring-shaped band for fitting the support member 44 to the arm may be used.
[0021]
Alternatively, a hook-and-loop fastener such as Velcro (registered trademark) may be attached to the surface where the attachment portion 45 and the holding member 43 abut, and the holding member 43 may be detachably connected to the attachment portion 45. . Thereby, since the direction with respect to the attachment part 45 of the holding member 43 can be changed, it is possible to change the display direction of the radiation intensity data displayed on the display device main body 42 to a direction corresponding to the user. Become. That is, the display device main body 42 is held by the holding member 43 even when the numerical value or graph displayed when the display device 40 is attached to the left or right arm by the user is upside down. In this state, the display unit main body 42 is removed from the mounting unit 45, the orientation of the display device main body 42 is changed, and the display unit main unit 42 is mounted on the mounting unit 45 again. Even if the holding member 43 is rotatably connected to the mounting portion 45, the orientation of the holding member 43 with respect to the mounting portion 45 can be changed, so that the display direction of the radiation intensity data can be changed. , Numerical values can be made easier to read.
[0022]
Next, a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the support member 54 of the display device 50 is an installation table that can be placed on a flat surface such as a table. The support member 54 has a shape in which two arm portions 58 are erected from a base portion 56 that has a flat surface whose bottom surface can be stably placed on a flat surface. The holding part 60 is provided in the. The display device main body 52 is the same as the display device main body of the first embodiment. By fitting the protrusion 62 of the display device main body 52 into the holding portion 60, the display device main body 52 is supported by the support member 54 that is an installation base. Is held rotatably. Also in the present embodiment, the display device main body 52 can be rotated, and the orientation of the display device main body 52 can be adjusted to change the orientation in a direction that is easy for the user to see.
[0023]
Moreover, since the display device main bodies 12, 42, 52 of the display devices 10, 40, 50 according to the first to third embodiments described above are configured to be detachable from the support members 14, 44, 54, the situation A support member that is easy to use can be selected and replaced according to the use.
[0024]
Next, a circuit configuration of the entire radiation detection apparatus including the above-described display device 10, 40, or 50 will be described. FIG. 7 is a block diagram of the radiation detection apparatus.
[0025]
The output signal of the radiation intensity detected by the probe 68 is input to the radiation detection apparatus main body 70 via a cable. The input circuit 72 includes an amplifier, for example, and an output signal from the probe 68 is input to the input circuit 72. The input circuit is provided with a plurality of input terminals, and a plurality of probes 68 can be connected in parallel as required. The detection signal output from the input circuit 72 is output to the measurement circuit 74, and the measurement circuit 74 calculates the radiation dose rate and the like. The measurement result is output to the control unit 76. Then, measurement data is output from the control unit 76 to the display unit 78. Also, an audio signal is output from the control unit 76 to the speaker. The operation panel 80 is configured as an input device, and can set system operating conditions, a display format of measurement data on the display unit 78 screen, and the like. The storage means 82 is provided for storing measurement data input from the control unit 76.
[0026]
At the same time, the measurement result is output to a separate display device 10, 40, or 50, and a numerical value, a graph, or the like of the measurement result is displayed on the display unit of the display device 10, 40, or 50.
[0027]
The above-described radiation detection apparatus has a configuration in which a measured value of the measured radiation intensity is output from a speaker. This function will be described below.
[0028]
The measurement value output from the probe 68 is taken into the control unit 76 at a constant cycle. When the control unit 76 takes in the measurement value output from the measurement circuit 74, the control unit 76 reads out the audio signal data corresponding to the measurement value from the storage unit 82. Then, the audio signal is output to the speaker 84. Thereby, the speaker 84 reads out a specific numerical value such as “Jun Hyakuni” if the measured value is “123”, for example. As a result, a person around the radiation detection apparatus can know the measurement value. In particular, when the operator is concentrated on the probe operation, the measurement value can be recognized as voice information from the ear even in such a situation by reading the measurement value from the speaker 84. Further, as shown in FIG. 2, a speaker 27 may be provided inside the separate display device 10, 40 or 50, and this sound output may be performed from the speaker 27. In this way, since the separate display device 10, 40 or 50 is located closer to the radiation examination operator than the radiation detection device main body 70, the output sound becomes easier for the operator to hear.
[0029]
When the output of the audio signal corresponding to one measurement value is completed and the reading of the measurement value from the speaker 84 is finished, the control unit 76 then finishes reading out of the measurement values taken in at a fixed period. The audio signal data corresponding to the measurement value taken in first is read from the storage means 82 and the audio signal is output to the speaker 84. Therefore, when the reading of the measurement value is completed, the reading of the next measurement value is started immediately.
[0030]
In the above-described embodiment, the reading of the next measurement value starts immediately after the reading of the measurement value is completed. However, once the measurement value taken into the control unit 76 at a certain period is taken in a predetermined number of times. It is good also as a setting which reads out only periodically.
[0031]
Further, a button may be provided on the probe 68 or the radiation detection apparatus main body 70, and when the button is pressed by the user, the control unit 76 may detect the pressing and read out the measured value. At this time, the control unit 76 may store the measurement value in the storage unit 82 according to the pressing operation.
[0032]
Further, in the above-described radiation detection apparatus, the display unit 78 of the radiation detection apparatus main body 70 and the display unit of the separate display apparatus 10, 40, or 50 indicate the radiation intensity according to the display format instructed by the user using the radiation detection apparatus. Display measurement data. Here, the display format refers to display items such as the current value, maximum value, and minimum value of measurement data to be displayed on the screen, and the position and size of measurement data displayed on the screen. It is a format related to various displays. This function will be described below with reference to the block diagram shown in FIG. 7 and the screen of the display unit 78 shown in FIG.
[0033]
An operation panel 80 provided in the radiation detection apparatus is provided with a plurality of ON / OFF switches. Each of these switches displays a current rate (current measurement value), maximum (MAX) measurement value, minimum (MIN) measurement value, BAR display of the current rate, maximum measurement value recorded in memory, minimum measurement value, etc. A switch for switching between display and non-display on the unit 78. By turning these switches ON / OFF, the control unit 76 detects the ON / OFF state, outputs only the data corresponding to the ON switch to the display unit 78, and displays the output data. This is displayed on the part 78. For example, in the example shown in FIG. 8A, the current rate and maximum measured value switches of the probe 68 are turned on and the other switches are turned off. Only the current rate and the maximum measured value are displayed on the screen. Is displayed. Further, in the example shown in FIG. 8B, the switches of the maximum measurement value and the minimum measurement value of the probe are turned on and the other switches are turned off, and only the maximum measurement value and the minimum measurement value are displayed on the screen. Is displayed.
[0034]
A plurality of switches for switching display / non-display on the display unit 78 are provided for each probe that can be input to the input circuit 72, and data to be displayed for each probe can be selected. In the example shown in FIG. 8C, the current rate of the first probe, the maximum measured value, the current rate of the second probe, and the measured value recorded in the memory are displayed. In the example shown in FIG. 8D, a bar display of the current rate of the first probe, the current rate of the second probe, the maximum measured value, and the current rate is displayed.
[0035]
In the present embodiment, when a display item is selected for each probe, the display layout of each item, that is, the position to be displayed and the size to be displayed are displayed so that the displayed numerical value is displayed on the screen. Set automatically.
[0036]
In the present embodiment, since the user can instruct and set the display format of the display items and the like on the display unit 78, the display on the display unit 78 can be arbitrarily set. Thereby, there is an effect that only necessary items are displayed and the display can be arbitrarily set to be easily viewable.
[0037]
In another embodiment, a display layout on the display unit 78 screen, for example, a display layout for displaying data of the first and second probes on the upper half and the lower half of the display unit 78 screen, respectively, or You may comprise so that a user can instruct | indicate display layouts, such as a display layout which displays the data of a 1st, 2nd probe on a left half and a right half, respectively. Even with this configuration, the user can specify the display layout that is the display format, and the data displayed on the screen can be easily set according to his / her preference.
[0038]
The operation panel may be a liquid crystal touch panel type operation panel. By setting display / non-display of display items for each probe on the touch panel, display formats such as display items and display layout on the display unit 78 can be set as in the above-described embodiment.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a radiation detection apparatus according to a first embodiment.
FIG. 2 is a perspective view showing a display device of the radiation detection apparatus according to the first embodiment.
FIG. 3 is a perspective view showing a usage state of the display device of the radiation detection apparatus according to the first embodiment.
FIG. 4 is a perspective view showing a display device of a radiation detection apparatus according to a second embodiment.
FIG. 5 is a perspective view showing a modification of the display device of the radiation detection apparatus according to the second embodiment.
FIG. 6 is a perspective view showing a display device of a radiation detection apparatus according to a third embodiment.
FIG. 7 is a block diagram of the radiation detection apparatus according to the first, second, and third embodiments.
FIG. 8 is a diagram showing a screen of a display unit when a display format is instructed by a user.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Display apparatus, 12 Display apparatus main body, 14 Support member, 16 Case, 18 Display part, 20 Protrusion part, 22 Holding member, 24 Holding part, 26 Mounting part, 28 Socket, 30 Cable, 32 Connector.

Claims (4)

A radiation detection device that measures the intensity of radiation emitted by a radioactive substance injected into the body,
A radiation detector main body that obtains radiation intensity data based on the output of the probe receiving the radiation;
A display device provided as a device separate from the previous SL radiation detection device body,
With
The display device
A display device main body for displaying the radiation intensity data;
A first support member said that mounted to freely held preparative with the object detaching the display device main body, a second support member as the platform installed on the display device main body detachably held on a plane, A support member group including:
Have
Said first support member includes a mounting portion made of resilient material, the mounting portion may installing an additional the display device to the pipe by the fitting against the pipe as the mounting object And it is possible to attach the display device to the arm by pressing and fitting the attachment portion onto the arm as the attachment object,
Both the first support member and the second support member can change the orientation of the display device body,
A radiation detection apparatus, wherein a support member to be used is selected from the support member group . The radiation detection apparatus according to claim 1,
A radiation detection apparatus comprising voice output means for reading out the measured value of the measured radiation intensity. The radiation detection apparatus according to claim 1,
The display device displays radiation intensity measurement data in accordance with a format instructed by a user who uses the radiation detection device. A display device of a radiation detection device for measuring the intensity of radiation emitted by a radioactive substance injected into the body, wherein the radiation detection device main body of the radiation detection device obtains radiation intensity data based on the output of a probe receiving radiation, in the display device provided as a separate apparatus,
A display device body for displaying the radiation intensity data obtained by the radiation detection device body;
A first support member attached to the display device main body detachably holding taken with the object, and the second supporting member as a base to be installed on the display device main body detachably held on a plane, a A supporting member group including:
Have
Said first support member includes a mounting portion made of resilient material, the mounting portion may installing an additional the display device to the pipe by the fitting against the pipe as the mounting object And it is possible to attach the display device to the arm by pressing and fitting the attachment portion to the arm as the attachment object.
Both the first support member and the second support member can change the orientation of the display device body,
A display device for a radiation detection apparatus, wherein a support member to be used is selected from the group of support members .

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