JP6139152B2 - Medical diagnostic equipment - Google Patents

Description

  Embodiments described herein relate generally to a medical diagnostic apparatus.

  In recent years, interest in disaster prevention and mitigation has increased due to the frequent occurrence of natural disasters such as earthquakes and typhoons. Medical facilities have spare power sources such as spare batteries in case the normal power source becomes unavailable due to natural disasters, etc., and in the event of an emergency, the power source is immediately switched from the normal power source to the standby power source. It is common to have disaster countermeasure systems such as switching. For example, when a power failure occurs during an examination by a medical diagnostic apparatus, an emergency light from a standby power source is turned on instead of normal room lighting. With this emergency light, the operator of the medical diagnostic apparatus can safely evacuate the patient from the medical diagnostic apparatus. Patent Document 1 describes switching to a standby power supply associated with the lighting of such an emergency light.

JP 2003-204948 A

  However, emergency lights that use a backup power source as in the past depend on an external power source in the end, and when the backup power source cannot be used due to a failure or the like, the power failure occurred during the inspection. The emergency light cannot be turned on. Therefore, in addition to the tension to the examination, the patient may panic because of anxiety that the emergency light will not turn on forever. As a result, when the patient is withdrawn from the medical diagnostic apparatus, it may cause a secondary disaster such that the patient contacts the medical diagnostic apparatus or the patient falls from the bed.

  The problem to be solved by the present invention is to provide a medical diagnostic apparatus that can alleviate patient anxiety during a power failure and sufficiently ensure the safety of the patient and the operator.

In order to solve the above problems, a medical diagnostic apparatus according to an embodiment includes an imaging unit that performs imaging of a medical image of a patient, a top plate on which the patient is placed, and a bed that supports the top plate, The imaging unit includes an opening for taking in and out the gantry, the patient, and the top plate, and includes a phosphorescent member on the wall surface of the opening or around the entrance.

The perspective view of the SPECT apparatus in embodiment. The block diagram of the detector in embodiment. The perspective view of the collimator and cover in an embodiment. The perspective view of the gantry of the SPECT apparatus in an embodiment. The front view of the gantry of the SPECT apparatus in an embodiment. The front view of the detector in an embodiment. The perspective view of a bed and a top plate in an embodiment. The front view 2 of the gantry of the SPECT apparatus in embodiment. The top view of the detector in an embodiment. The perspective view 2 of the SPECT apparatus in embodiment. The perspective view of the gantry of CT apparatus in an embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the present embodiment, a three-detector type SPECT apparatus having three detectors, which is one of nuclear medicine diagnosis apparatuses, will be described as an example.

  In general, a SPECT apparatus is an apparatus that administers a compound labeled with a radioisotope or a radiopharmaceutical (tracer) to a patient, and detects and images gamma rays (photons) emitted from the tracer.

  FIG. 1 is a perspective view of a SPECT apparatus according to this embodiment. The SPECT apparatus according to the present embodiment includes a detector 1a, a detector 1b, a detector 1c, and a gantry 2 as an imaging unit, and the gantry 2 includes an operation panel 5 and an opening entrance 6. The SPECT apparatus according to the present embodiment includes a bed 3, a top plate 4, and a console (not shown) separately from the imaging unit, and the top plate 4 includes a handle 7. The console includes a data processing unit (not shown), a data storage unit (not shown), an operation unit (not shown), and a display unit (not shown). In FIG. 1, the direction perpendicular to the longitudinal direction of the top plate 4 and toward the right side of the paper is the x direction, and the direction perpendicular to the longitudinal direction of the top plate 4 and toward the top of the paper is the y direction, the x direction, and the y direction. The vertical direction toward the bed 3 with respect to the position of the gantry 2 is the z direction. The coordinate system using the x direction, y direction, and z direction in FIG. 1 is similarly applied to FIG.

  FIG. 2 is a configuration diagram of the detector 1a in the present embodiment. The detector 1a includes a collimator 11, a scintillator 12, a light guide 13, a PMT 14, and a cover 15. PMT is an abbreviation for “Photomultiplier tube”. The entire detector 1a is shielded from light, and a lead shield (not shown) is provided on the side surface so that gamma rays do not enter. The detector 1b and the detector 1c have the same configuration.

  FIG. 3 is a perspective view of the collimator 11 and the cover 15 in the present embodiment. As shown in FIG. 3, the collimator 11 has a structure divided into a lattice shape, and allows only gamma rays that pass through the cover 15 and enter substantially perpendicularly to the lattice plane. The cover 15 is made of a member that can sufficiently transmit gamma rays. The gamma rays that have passed through the collimator 11 are converted into light by a scintillator 12 as shown in FIG. Light generated by the scintillator 12 enters the PMT 14 via the light guide 13 and is converted into an electric signal by the PMT 14. This electrical signal is sent to the data processor. The data processing unit generates an image based on the electrical signal received from the PMT. This image is stored in a data storage unit such as a hard disk in the console, and is displayed on the display unit by an operation of an operator via an operation unit such as a keyboard and a mouse provided in the console.

  4 and 5 are a perspective view and a front view of the gantry 2 in FIG. As shown in FIGS. 4 and 5, the SPECT apparatus according to the present embodiment includes three detectors: a detector 1a, a detector 1b, and a detector 1c. As shown in FIG. 5, the detector 1 a and the detector 1 b are instructed so that the detector 1 c can move in the directions of arrows P, Q, and R, and can rotate around the point O. It is supported by. These movements and rotations are performed by a detector operating mechanism (not shown) such as a motor provided inside the gantry 2. The detectors 1a, 1b, and 1c are moved in the directions of arrows P, Q, and R, for example, in order to arrange the detectors according to the patient's diagnostic site as described later. The rotation of the detector 1a, the detector 1b, and the detector 1c around the point O is performed in order to detect gamma rays from all the rotation angles and generate an image.

  The detector 1a, the detector 1b, and the detector 1c need to be close enough not to contact the patient in order to detect as much gamma rays emitted from the tracer in the patient as possible. 6 (a) and 6 (b) show the case where the patient's head is located in a space surrounded by the detector 1a, the detector 1b, and the detector 1c, and the patient's chest is the detector 1a and the detector. 1b is a front view of the detector 1a, the detector 1b, and the detector 1c when located in a space surrounded by the detector 1c. FIG. For example, when imaging a patient's head, as shown in FIG. 6A, the detector 1a and the detector 1b are arranged so as to approach each other. On the other hand, when imaging the chest of the patient, as shown in FIG. 6B, the detector 1a, the detector 1b, and the detector 1c are arranged so as to be away from each other.

  The bed 3 supports the top plate 4 on its upper part. The top plate 4 is moved by a top plate moving mechanism (not shown) such as a motor of the bed 3 in the x direction, the reverse direction of the x direction, the y direction, the reverse direction of the y direction, the z direction, and the reverse of the z direction in FIG. It can move in the direction.

  The movement and rotation of the detector 1a, the detector 1b, and the detector 1c by the detector operation mechanism and the movement of the top 4 by the top movement mechanism are, for example, operations (not shown) provided in the operation panel 5. This is done by pressing the button by the operator. As for the movement of the top plate 4 in the z direction and the direction opposite to the z direction, the operator can manually operate the handle 7 by grasping the handle 7 and pulling it in the z direction or pushing it in the direction opposite to the z direction. Is possible.

  Although the configuration and functions of the SPECT apparatus have been briefly described above, the details thereof are omitted because they are not closely related to the present embodiment.

  In this embodiment, the phosphorescent paint is applied to a predetermined part of the SPECT apparatus.

  FIG. 7 is a perspective view of the bed 3 and the top plate 4 in the present embodiment. As shown in FIG. 7, the bed 3 includes a top plate support portion 21, an intermediate portion 22, and a base portion 23. In the present embodiment, the surface facing the x direction and the direction opposite to the x direction in the top plate support portion 21 is the surface A, the surface facing the y direction in the top plate support portion 21 is the surface B, and the top plate support portion 21. The surface facing the z direction is C, the surface facing the y direction in the base portion 23 is the surface D, the surface facing the direction opposite to the x direction and the x direction in the base portion 23 is the surface E, and the base portion 23. The surface facing the z direction in FIG. 5 is referred to as a surface F, the surface facing the z direction in the handle 7 is referred to as a surface G, and the surface facing the y direction in the top plate 4 is referred to as a surface H.

  For example, when the phosphorescent paint is applied to the surface A, the surface B, and the surface C, the surface of the top plate support portion 21 shines at the time of a power failure, so that the patient and the operator visually recognize the outline of the top plate support portion 21. Can be grasped. This makes it possible to prevent the patient from accidentally falling from the bed 3 when the operator retracts the patient from the bed 3.

  When the phosphorescent paint is applied to the surface D, the surface E, and the surface F, the surface of the base portion 23 shines at the time of a power failure, so the patient can visually grasp the position of the base portion 23. It is possible to grasp the position of the floor indirectly. Thus, for example, when the patient gets off the bed 3 according to the guidance of the operator, the patient can land without crawling his / her foot.

  When the phosphorescent paint is applied to the surface G, the surface of the handle 7 shines at the time of a power failure, so that the operator can visually grasp the position of the handle 7. As a result, the operator can surely grasp the handle 7, so that when the operator manually pulls out the top plate 4 located in the space between the detector 1 a, the detector 1 b, and the detector 1 c, the operator It is possible to prevent an accident that a finger is pinched between 21 and the top 4.

  When the phosphorescent paint is applied to the surface H, the portion of the top 4 where the patient is not located at the time of a power failure will shine, and the portion of the top 4 where the patient is located will become the shadow of the patient. Thus, the operator can visually grasp the position of the patient on the top 4.

  FIG. 8 is a front view of the gantry 2. As shown in FIG. 8, the edges of the detector 1a, the detector 1b, and the detector 1c on the side of the opening 6 of the opening and on the side of the cover 15 are defined as an edge I, an edge J, and an edge K, respectively.

  FIG. 9 is a plan view of the detector 1a viewed from the direction of the cover 15. An edge portion of the detector 1a in this plane is defined as an edge L. FIG. The edge portion of the detector 1b and the detector 1c is also referred to as an edge L.

  Normally, the detector 1a, detector 1b, and detector 1c of the SPECT apparatus move in the directions of arrows P, Q, and R as shown in FIG. 5 or FIG. Therefore, when a power failure occurs during these movements and rotations, the operator or patient may not be able to grasp the exact positions of the detector 1a, detector 1b, and detector 1c.

  When phosphorescent paint is applied to the edges I, J, and K, at the side of the opening 1 side of the detector 1a, the detector 1b, and the detector 1c at the time of a power failure, and the edge on the cover 15 side Since the portion is illuminated, the operator can visually grasp the exact positional relationship among the detector 1a, the detector 1b, and the detector 1c. Thereby, when taking out the top plate 4 and the patient from the space between the detector 1a, the detector 1b, and the detector 1c, the patient is safely retracted without hitting the detector 1a, the detector 1b, and the detector 1c. be able to.

  Further, when the phosphorescent coating is applied to the edge L, the edge part of the surface on the patient side of the detector 1a, the detector 1b, and the detector 1c shines at the time of a power failure, and the detector 1a, the detector 1b, A patient in the space between the detectors 1c can visually grasp the contours of the detectors 1a, 1b, and 1c. Thereby, the patient himself / herself can be careful not to hit the detector 1a, the detector 1b, or the detector 1c. Further, since the operator can grasp the contours of the detector 1a, the detector 1b, and the detector 1c, when the table 4 and the patient are taken out from the space between the detector 1a, the detector 1b, and the detector 1c. The patient can be safely withdrawn without hitting the detector 1a, detector 1b, or detector 1c.

  10 (a) and 10 (b) are a perspective view of the SPECT apparatus of the present embodiment when the illumination in the examination room where the SPECT apparatus is installed is normally lit, and the present embodiment at the time of a power failure. It is a perspective view of the SPECT apparatus. 10A and 10B, the surface A, surface B, surface C, surface D, surface E, surface F, surface G, surface H, edge I, edge J, edge K, It is assumed that the part corresponding to the edge L is coated with a phosphorescent paint. As can be seen from FIG. 10 (b), the phosphorescent paint is applied to the bed 3, the top plate 4, the detector 1a, the detector 1b, and the detector 1c, so that the patient and the operator can use the bed 3, The positional relationship among the plate 4, the detector 1a, the detector 1b, and the detector 1c can be visually grasped. As a result, the patient's anxiety during a power failure can be reduced, and the patient can be safely withdrawn from the apparatus. In addition, the operator's anxiety during a power outage can be reduced, and the operator can perform safer evacuation guidance. In addition, this embodiment is applicable if it is a SPECT apparatus provided with one or more detectors.

  An effective action can be expected by applying a phosphorescent paint in addition to the above-described portions. For example, in the case of a one-detector type or two-detector type SPECT apparatus, the detector is much larger than a three-detector type SPECT apparatus. Therefore, if the patient's head is fixed so as to be positioned at the center of the detector for the purpose of photographing the head, the light of the phosphorescent paint applied to the edge L as shown in FIG. Etc. may not be confirmed. In that case, a phosphorescent paint is applied to the entire cover 15 or the center of the cover 15 is marked with the phosphorescent paint. Thus, even when a power failure occurs while taking a head image of the patient, the patient can easily grasp the position of the detector.

  The position applied to the side surface of the detector 1a, the detector 1b, and the detector 1c on the opening inlet 6 side is not the edge I, edge J, or edge K of the edge portion on the cover 15 side, but the side surface on the opening inlet 6 side. The whole may be sufficient. Further, the application position of the phosphorescent paint on the bed 3 may be an edge portion such as a side between the surface A and the surface B, for example. Thus, the brightness at the time of a power failure can be adjusted by changing the application range of the phosphorescent paint.

  Moreover, although this embodiment demonstrated the case where a phosphorescent paint was apply | coated to the bed 3, the top plate 4, the detector 1a, the detector 1b, and the detector 1c, you may apply a phosphorescent paint to another site | part. For example, when a phosphorescent paint is applied to the surface or edge portion of the gantry 2 so that the outline of the gantry 2 can be visually grasped during a power failure, the surface or edge of the gantry 2 shines during the power failure. Thereby, it is possible to prevent the patient and the operator from coming into contact with the gantry 2 during a power failure.

  Furthermore, this embodiment can be applied to medical diagnostic apparatuses other than SPECT apparatuses.

  FIG. 11 is a perspective view of a gantry of a general CT apparatus. Usually, an opening 7 is provided at the center of the gantry of the CT apparatus. In the case of the CT apparatus of FIG. 11 or a PET apparatus (not shown), the detector is installed inside the gantry, and the detector does not protrude outside the gantry unlike the SPECT apparatus of this embodiment. Further, in the MR apparatus (not shown), since the coil is installed inside the gantry, there is no structure that protrudes outside the gantry. In the case of such a medical diagnostic apparatus, a phosphorescent paint is applied to the wall surface N of the opening 7 and the periphery M of the opening entrance 6 as shown in FIG. Thereby, the same effect as the example of the SPECT apparatus of this embodiment can be expected.

  Further, when the present embodiment is applied to the SPECT apparatus, for example, a cover may be provided between the detector and the patient so that the detector cannot be directly seen from the patient. In this case, the operator or patient can grasp the exact position of the cover at the time of a power failure by applying the phosphorescent paint to the edge or inner wall of the cover like the opening entrance 6 and the opening 7 described above.

  In addition, although the case where the phosphorescent paint was used was described in this embodiment, surface A, surface B, surface C, surface D, surface E, surface F, surface G, surface H, edge I, edge J, edge K, Parts such as the edge L may be made of a phosphorescent material having a phosphorescent function. In this case, there is no need to worry about the paint being peeled off due to wear of the paint part.

  As mentioned above, although embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1a, 1b, 1c ... detector 2 ... gantry 3 ... bed 4 ... top plate 5 ... operation panel 6 ... opening entrance 7 ... opening 11 ... collimator 12 ... Scintillator 13 ... Light guide 14 ... PMT
15 ... Cover 21 ... Top plate support part 22 ... Intermediate part 23 ... Base part

Claims (4)

An imaging unit for taking medical images of a patient;
A top plate on which the patient is placed;
A bed supporting the top plate;
With
The imaging unit includes a gantry, an opening for taking in and out the patient and the top plate, and a medical diagnostic apparatus including a phosphorescent member on a wall surface of the opening or around the entrance . The medical diagnostic apparatus according to claim 1, further comprising the accumulating member to the outer surface or edge of the bed. The medical diagnostic apparatus according to claim 1, further comprising the accumulating member to the outer surface or edge of the top plate. An imaging unit for taking medical images of a patient;
A top plate on which the patient is placed;
A bed supporting the top plate;
With
The imaging unit includes a gantry and one or more detectors installed so as to protrude outside the gantry ,
Medical diagnostic apparatus including the accumulating member on the surface or edge of the front Symbol detector.

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