JP7119963B2 - Subject support device for nuclear medicine diagnostic equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a subject support apparatus for a nuclear medicine diagnostic apparatus used in the nuclear medicine diagnostic apparatus.

For example, in a nuclear medicine diagnostic apparatus for breast examination that examines the breast of a subject, the breast of the subject, to which a radiopharmaceutical has been administered in advance, is placed in a ring-shaped radiation detection unit in which a tunnel-shaped examination space is formed. The radiation detector detects annihilation photons emitted from the breast of the subject. Then, the time when the photon is detected is measured, and when the detection time difference between the two detectors in the radiation detection unit is within a certain time, it is counted as a pair of pair annihilation photons, and the pair annihilation occurrence point is determined. is the linear position of the detected detector pair. A PET image is acquired by accumulating the emission data thus obtained and performing image reconstruction using the accumulated emission data. The obtained PET image is displayed on the monitor and transferred to the server in the hospital.

In such radiological imaging apparatus for breast examination, as a method of positioning the radiation detection unit with respect to the subject's breast, the subject is fixed in a certain position on a bed or a chair, and then the radiation detection unit is positioned. There are two types of methods: one is to position the body close to the subject, and the other is to fix the radiation detection unit and insert the breast of the subject into the radiation detection unit for positioning. .

In Patent Literature 1, the subject is placed on a table top having an insertion opening for inserting the subject's breast, and the subject's breast hangs down through the insertion opening. discloses a table for performing a medical procedure that is positioned adjacent to x-ray imaging equipment. The table described in Patent Document 1 is configured to select and use an alternative insert having a larger or smaller diameter insertion opening based on the size of the subject's breast. there is

In addition, Patent Literature 2 discloses a radiological diagnostic apparatus dedicated to breast that can examine the breast and armpit of a subject. In the nuclear medicine diagnostic apparatus described in Patent Document 2, an annular (ring-shaped) detector unit that images the breast of a subject M in a sitting position, and an arm that supports the arm inserted into the detector unit. Equipped with a stand. The detector unit in this nuclear medicine diagnostic apparatus has a hole with an inner diameter extending from the shoulder on the arm side into which the arm closer to the breast can be inserted to the base of the breast.

JP 2016-185349 A JP 2015-94697 A

As described in Patent Literature 2, when the subject is examined in a sitting position, the examination takes about 10 minutes at maximum. I have a feeling problem. For this reason, as described in Patent Document 1, it is preferable to adopt a configuration in which the breast and armpit of the subject in the supine position can be examined. However, a nuclear medicine diagnostic apparatus with such a configuration has not been realized.

On the other hand, as described in Patent Document 1, in order to allow the examination of the breast and axillary region of the subject placed on the placement section in a supine position, the subject's A radiation detection unit having an examination space large enough to accommodate the examiner's breasts and axillae is employed, and a space capable of accommodating the subject's arms is provided below the radiation detection unit. It is conceivable to employ the formed configuration. When such a configuration is adopted, the subject can be examined in the supine position, and the burden on the subject is reduced.

In order to examine a breast and an axilla using such a nuclear medicine diagnostic apparatus, a subject inserts his or her arm into the internal space through an insertion opening for the arm in the radiation detection unit. , should be maintained in a supine position. As described above, since the examination takes about 10 minutes at maximum, it is extremely difficult and painful for the subject to maintain the lateral recumbency without moving the body. .

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and to provide a subject support apparatus for a nuclear medicine diagnostic apparatus that enables a subject to easily maintain a side-lying position. .

In the first aspect of the invention, a ring-shaped radiation detection section having an examination space formed therein and a patient placement section having an opening communicating with the examination space in the radiation detection section are placed on the upper surface. A nuclear medicine diagnostic apparatus that can examine the axillary region of a subject lying sideways on the placement section with the arm inserted into the opening and lying sideways on the placement section. A subject support device for a medical diagnostic apparatus, comprising: a sheet member placed on the placing portion ; a support member having a shape extending in the body axis direction of a subject and supporting the subject.

The invention according to claim 2 is the invention according to claim 1, further comprising a connection member that detachably connects the sheet member and the support member.

The invention according to claim 3 is the invention according to claim 2, wherein the connection member is a hook-and-loop fastener arranged on the upper surface of the sheet member and the lower surface of the support member.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein a plurality of the support members are provided, and the plurality of support members are arranged to overlap each other.

The invention according to claim 5 is the invention according to claim 4, further comprising connecting means for detachably connecting the plurality of support members.

The invention according to claim 6 is the invention according to claim 5, in which one of the plurality of support members is formed with a recess, and the other one of the support members is formed with a protrusion that engages with the recess. A portion is formed to connect the plurality of support members together by engaging the recess and the protrusion.

According to the first aspect of the invention, the body of the subject fixes the sheet member on the placement section, and the support member provided at the end of the sheet member supports the subject. It becomes possible. Therefore, the subject supported by the support member can easily maintain the lateral recumbency without feeling any pain.

According to the second and third aspects of the invention, it is possible to selectively use the support member or change the mounting position of the support member with respect to the seat member.

According to the fourth aspect of the present invention, it is possible to select the number of supporting members to be used according to the physique of the subject.

According to the inventions of claims 5 and 6, it is possible to easily connect a plurality of support members by using connecting means such as engagement of concave portions and convex portions.

1 is a perspective view of a nuclear medicine diagnostic apparatus to which a subject support device for a nuclear medicine diagnostic apparatus according to an embodiment of the present invention is applied; FIG. FIG. 2 is a schematic side view showing how a nuclear medicine diagnostic apparatus examines a subject M; 1 is a perspective view showing a state in which a sheet member 31 in a subject support device for a nuclear medicine diagnostic apparatus according to an embodiment of the present invention is placed on a placing section 11 in the nuclear medicine diagnostic apparatus; FIG. 1 is a perspective view showing a state in which a sheet member 31 and a plurality of support members 32 and 33 in a subject support device for a nuclear medicine diagnostic apparatus according to an embodiment of the present invention are placed on a placing section 11 in the nuclear medicine diagnostic apparatus; FIG. is. 3 is a perspective view of a plurality of support members 32, 33; FIG. 4 is a bottom view of a support member 33; FIG. 3 is a partial cross-sectional view showing an engagement state between a sheet member 31 and support members 32 and 33; FIG. 3 is a partial cross-sectional view showing an engagement state between a sheet member 31 and support members 32 and 33; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a nuclear medicine diagnostic apparatus to which a subject support device for a nuclear medicine diagnostic apparatus according to an embodiment of the present invention is applied. Also, FIG. 2 is a schematic side view showing how an examination of a subject M is performed by this nuclear medicine diagnostic apparatus.

A nuclear medicine diagnostic apparatus to which the present invention is applied is particularly capable of examining the subject's axilla as well as the subject's breast. This nuclear medicine diagnosis apparatus is also called, for example, a PET (Positron Emission Tomography) apparatus for mammography, and includes a bed 14 on which a placement section 11 for placing a subject M is arranged. . The placement section 11 is formed with a recess 13 in which the head of the subject M is placed, and an insertion opening 12 for inserting the breast and armpit of the subject M. As shown in FIG. A space 20 having a size capable of accommodating the arm of the subject M is formed inside the body cover 16 below the placing section 11 of the bed 14 . In the state where the subject M is in the prone position on the placement section 11, around the breast and armpit of the subject M inserted toward the space 20 from the insertion opening 12 of the placement section 11, , radiation detectors 15 arranged in a ring are provided.

This nuclear medicine diagnostic apparatus is for examining a subject M's breast and armpit. In this nuclear medicine diagnostic apparatus, the breast and armpit of a subject M to whom a radiopharmaceutical has been administered in advance are inserted from an insertion opening 12 into a ring-shaped radiation detection section 15 having a tunnel-shaped examination space. The 511 keV pair annihilation photon emitted from the examiner M is detected by the radiation detector 15 . Then, the time when the photon is detected is measured, and when the difference in detection time between the two detectors in the radiation detection unit 15 is within a certain time, it is counted as a pair of pair annihilation photons, and the pair annihilation occurs. A point is identified as being the linear position of the detector pair that detected it. The emission data thus obtained are stored in the console 6, and the PET image is obtained by reconstructing the image using the emission data stored in the console 6. FIG. The acquired PET image is displayed on the display unit 7 and transferred to the server in the hospital via the network 8 in the hospital.

At this time, the breast and armpit of the subject M need to be placed within the radiation detection range 19 of the radiation detection unit 15 . In order to enable this, the size of the radiation detection unit 15 is adjusted so that the radiation detection range 19 formed by the radiation detection unit 15 has a size in which the breast and armpit of the subject M can be arranged. has been decided.

When examining the breast and armpit of the subject M, as shown in FIG. part is stored. At this time, the examination by the nuclear medicine diagnostic apparatus may take about 10 minutes. Therefore, an arm support member 22 for supporting the arm of the subject M is arranged in the space 20 .

The arm support member 22 has a structure in which a flexible material such as sponge is surrounded by synthetic leather or the like. The size and shape of the arm support member 22 are changed according to the physique of the subject M, the posture of the subject M during examination, and the like. A plurality of arm support members 22 may be used to support the arm of the subject M, if necessary.

In this nuclear medicine diagnostic apparatus, an opening 21 communicating with a space 20 in which an arm of a subject M can be accommodated is formed in a side surface of a main body cover 16 of a bed 14 . The openings 21 are formed on both sides of the body cover 16 on the sides of the subject M on the placement section 11 of the bed 14 .

When examining the breasts and armpits of the subject M, the subject M moves from the insertion opening 12 formed in the placement section 11 to the space 20 formed inside the body cover 16, as shown in FIG. arm must be inserted into the At this time, if the space 20 is closed, when the subject M inserts the arm into the space 20 through the insertion opening 12, the shape of the space 20, etc. cannot be recognized, and the patient feels uneasy. . However, in this nuclear medicine diagnostic apparatus, since the opening 21 communicating with the space 20 for accommodating the arm of the subject M is formed, the subject M has no idea what the space 20 is like. Therefore, the subject M does not feel such uneasiness.

Also, during the examination, an article used for the examination may fall from the insertion port 12 into the space 20, or vomit of the subject M may fall. Even in such a case, by using the opening 21 communicating with the space 20, it is possible to easily remove the falling object.

Furthermore, during examination by the nuclear medicine diagnostic apparatus, the arms of the subject M are placed in the space 20 in order to reduce the fatigue of the subject M and prevent the examination site of the subject M from moving. An arm support member 22 is provided for support. The size and shape of the arm support member 22 must be changed according to the physique of the subject M and the like. Even in such a case, by using the opening 21 communicating with the space 20, the arm support member 22 corresponding to the subject M can be installed in the space 20, or the physique of the subject M can be adjusted. Accordingly, the shape, size, quantity, etc. of the arm support member 22 can be changed.

When examining the subject M using the nuclear medicine diagnostic apparatus having the configuration described above, the subject M faces sideways in order to insert the arm into the space 20 through the insertion port 12. It is difficult and painful to maintain the lying position without moving the body until the end of the examination. For this reason, the patient support device for a nuclear medicine diagnostic apparatus according to the present invention is used.

A configuration of a subject support apparatus for a nuclear medicine diagnostic apparatus according to an embodiment of the present invention will be described below. FIG. 3 is a perspective view showing a state in which the sheet member 31 of the patient support device for a nuclear medicine diagnostic apparatus according to the embodiment of the present invention is placed on the placing section 11 of the nuclear medicine diagnostic apparatus. FIG. 4 shows a state in which a sheet member 31 and a plurality of support members 32 and 33 of the subject support device for a nuclear medicine diagnostic apparatus according to the embodiment of the present invention are placed on the placing section 11 of the nuclear medicine diagnostic apparatus. It is a perspective view showing the. FIG. 5 is a perspective view of a plurality of support members 32,33. 6 is a bottom view of the support member 33. FIG. 7 and 8 are partial cross-sectional views showing the state of engagement between the seat member 31 and the support members 32 and 33. FIG.

As shown in FIGS. 4, 7 and 8, the subject support apparatus for a nuclear medicine diagnostic apparatus according to the embodiment of the present invention includes a sheet member 31 placed on a mounting section 11 of the nuclear medicine diagnostic apparatus. and a plurality of support members 32 and 33 arranged at the ends of the sheet member 31 . As shown in FIG. 3, a hook-and-loop fastener 41 as a connecting member is arranged on the surface of the sheet member 31 . Further, as shown in FIG. 6, a hook-and-loop fastener 42 as a connecting member is arranged on the lower surface of the support member 33 . A hole 34 is formed in the support member 33 , and a protrusion 35 that can be engaged with the hole 34 formed in the support member 33 is formed in the support member 32 .

When a subject M under examination is to be supported by this subject support device for a nuclear medicine diagnostic apparatus, first, as shown in FIG. place. Then, as shown in FIG. 4 , the support member 33 is fixed onto the sheet member 31 using hook-and-loop fasteners 41 and 42 . During this fixation, the action of the surface fasteners 41 and 42 makes it possible to finely adjust the fixation position of the support member 33 . After that, the support member 32 is engaged with the support member 33 as required.

As a result, as shown in FIG. 4, the patient support device is configured on the mounting section 11 of the nuclear medicine diagnostic apparatus. During examination, the sheet member 31 is fixed by the subject M lying on the sheet member 31 . The subject M lying on his side can be supported by the support members 32 and 33 . This enables the subject M to easily maintain the side-lying state without feeling pain. At this time, by selectively using not only the support member 33 but also the support member 32 according to the physique and posture of the subject M, or by changing the mounting position of the support member 33 with respect to the sheet member 31, The subject M can more easily maintain the side-lying state.

At this time, the convex portion 35 formed on the lower surface of the support member 32 has an asymmetrical shape in the direction orthogonal to the longitudinal direction of the support member 32 . Therefore, as shown in FIG. 7 or 8, by changing the direction in which the support member 32 is engaged with the support member 33, it is possible to change the external shape of the support members 32 and 33 that are engaged with each other. Become. Therefore, by changing the outer shape of the support members 32 and 33 according to the physique and posture of the subject M, it is possible to support the subject M in an optimum state for each subject M. .

In the above-described embodiment, the sheet member 31 and the support member 33 are detachably connected by the hook-and-loop fasteners 41 and 42, but the sheet member can be connected by using other connecting mechanisms such as buttons. 31 and support member 33 may be detachably connected.

In the above-described embodiment, the support member 33 is formed with the hole 34 and the support member 32 is formed with the protrusion 35 that engages with the hole 34 , so that the hole 34 and the protrusion 35 are separated. A configuration is adopted in which the plurality of support members 32 and 33 are connected to each other by engagement. However, the support member 32 and the support member 33 may be detachably connected by connecting means such as hook-and-loop fasteners. In addition, by disposing a soft material having a large coefficient of friction such as a rubber sheet on the contact surface between the support members 32 and 33, the support members 32 and 33 can be prevented from slipping and can be placed at an arbitrary position with respect to the other to indicate the subject M.

Furthermore, in the above-described embodiment, the subject support device for a nuclear medicine diagnostic apparatus according to the embodiment of the present invention is applied to a nuclear medicine diagnostic apparatus for examining the breast and armpit of the subject M. However, in addition to the breasts and armpits of the subject M, for example, a nuclear medicine diagnostic apparatus capable of examining other parts of the subject M, such as the head of the subject M. You may apply the subject support apparatus for nuclear medicine diagnostic apparatuses which concerns.

REFERENCE SIGNS LIST 11 placement section 12 insertion opening 13 recess 14 bed 15 radiation detection section 16 body cover 19 radiation detection range 20 space 21 opening 22 arm support member 31 sheet member 32 support member 33 support member 34 hole 35 projection 41 surface Fastener 42 Velcro fastener M Examinee

Claims (6)

A ring-shaped radiation detection unit having an examination space formed therein; A subject support device for a nuclear medicine diagnostic apparatus used in a nuclear medicine diagnostic apparatus capable of examining the axillary region of the subject lying sideways on the placement section with the arm inserted into the opening. and
a sheet member placed on the placing portion;
a support member that is fixed at a position on the sheet member where the subject does not rest, and has a shape extending in the body axis direction of the subject lying on the sheet member in a side-lying state to support the subject;
A subject support device for a nuclear medicine diagnostic apparatus, comprising:
In the subject support apparatus for a nuclear medicine diagnostic apparatus according to claim 1,
A subject support apparatus for a nuclear medicine diagnostic apparatus, comprising a connection member that detachably connects the sheet member and the support member. In the subject support device for a nuclear medicine diagnostic apparatus according to claim 2,
The connecting member is a hook-and-loop fastener provided on the upper surface of the sheet member and the lower surface of the supporting member. In the subject support apparatus for a nuclear medicine diagnostic apparatus according to any one of claims 1 to 3,
A subject support apparatus for a nuclear medicine diagnostic apparatus, comprising a plurality of the support members, wherein the plurality of support members are arranged in an overlapping manner. In the subject support apparatus for a nuclear medicine diagnostic apparatus according to claim 4,
A subject support apparatus for a nuclear medicine diagnostic apparatus, comprising connection means for detachably connecting the plurality of support members. In the subject support device for a nuclear medicine diagnostic apparatus according to claim 5,
One of the plurality of support members is formed with a recess, and the other one is formed with a protrusion that engages with the recess. A patient support device for a nuclear medicine diagnostic apparatus that connects the plurality of support members to each other.

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