JP4644239B2 - Treatment room mobile nuclear medicine system and mobile vehicle and standby equipment used in this system - Google Patents

Description

  The present invention relates to a treatment room mobile nuclear medicine system, and a mobile vehicle and standby equipment used in the system.

  Conventionally, a PET apparatus has been used for health examinations (Patent Document 1).

In this PET test, in general, (a) FDG (drug combined with glucose and radioisotope) is administered to the subject, and (b) a rest is waited until the drug is taken into the subject's body. (C) The body is imaged with a PET device, and (d) the physical condition is restored (Non-patent Document 1). At this time, a small amount of radiation is generated from the body of the subject. is doing. If this medical radiation is repeatedly received by hospital medical personnel, it may cause health damage. According to the guidelines established by the Ministry of Health and Welfare (Non-Patent Document 2), medical staff directly involved in the examination are supposed to adopt various countermeasures such as screens for radiation shielding and syringes. Staff and patients in other departments who happen to pass the examiner are exposed to radiation unprotected. Therefore, it is supposed to use a PET facility in which an administration room, a rest room, an examination room, and a recovery room are provided in a radiation control area isolated from the outside so that the subject can visit each room (Patent Document 2). ).
JP 07-280941 A JP 2004-108996 A JP-A-9-310308 JP 7-2102 A "PET inspection procedure" Search date: July 25, 2007 Site: 1192607577126_0 Guidelines for ensuring safety in FDG-PET inspection (2005) Ministry of Health, Labor and Welfare Research group on ensuring radiation safety in PET inspection facilities

  In the facility of Patent Document 2, the PET apparatus is fixed in the examination room, but since this apparatus is expensive, there are many medical institutions without a budget to purchase. In addition, since it is sufficient to use such an inspection device once in one inspection, it is not economical to install this device in an area where the number of examinees is small.

  In view of these problems, the present applicant has intensively studied the possibility of constructing a system in which an automobile equipped with a PET apparatus visits each hospital. First, a PET apparatus can be mounted on a large automobile, but it is difficult to provide an FDG administration room and a rest room in the vehicle. When a subject who has received FDG treatment walks through the entrance to a car equipped with a PET device, there is a possibility that a rubbing third party will be exposed, which is against the above guidelines. Therefore, there is a need for a method that properly guides the subject from one corner of the building to the car. As technologies related to this, there are known a telescopic passenger boarding bridge (Patent Document 3) constructed from a bridge of a ship to a ground terminal and a vehicle hood (Patent Document 4) for connecting train vehicles to each other. These documents do not mention radiation management.

  The object of the present invention is to have a fixed section such as a hospital and a moving section such as an automobile equipped with a nuclear medicine device, and both sections can be constructed as one radiation control section via a moving path. Is to provide a safe nuclear medicine system.

The first means is
A fixed section 2 including a waiting area for the person to be treated;
A mobile section 30 having a radiation shielded body for performing nuclear medicine processing and capable of self-propelling or towing;
A nuclear medicine system that can be connected freely to humans,
With the moving section 30 stopped near one side of the fixed section 2, sealable passages 12 and 50 are provided at locations corresponding to the outer wall of the moving section and the fixed section, and between these passages 12 and 50. , A movable passage 52 that is formed so that it can be withdrawn,
By making this moving path a closed path that is blocked from the outside air, the fixed section 2, the moving path 52, and the moving section 30 are isolated from the surroundings as one radiation control section,
Furthermore, the decompression means 13 for decompressing the radiation management section formed by connecting the fixed section 2, the movement path 52 and the movement section 30 to each other is provided.

    In this measure, it is proposed that the fixed section and the moving section are connected by a retractable moving path to form a radiation control area from the fixed section to the moving section through the moving path when performing medical treatment. . As a preferred example, for example, a plurality of facilities serving as fixed sections may be provided on the premises of various hospitals, and these facilities may be circulated by a single car serving as a moving section.

  The “fixed section” is a part of the system that forms the radiation management section that is constantly used in one place, and includes at least a space for a person to wait. In the case of FDG-PET examination, it is preferable to provide an FDG administration room, a rest room, etc. in the fixed section. As an embodiment of the fixed section, there is a type that does not assume movement as shown in FIG. 1 (non-moving section), and a type that can move up to the work site as shown in FIG. You could think so. The former is a real estate of a part of a building such as a hospital or a temporary facility such as a prefab. The latter is towed by a towing vehicle in the same manner as the moving vehicle in the following moving section, and separated from the towing vehicle at the destination. Here, “fixed” means that it is in one place and does not move, and does not necessarily have to be coupled to the ground like a building.

    The “moving section” is a part of the medical system that is constructed as a mobile vehicle equipped with a nuclear medicine device, that is, a moving vehicle. This moving vehicle may be, for example, a self-propelled transportation means (particularly an automobile) or may be towed by the self-propelled means. An examination room is provided in the vehicle of the moving vehicle, and a nuclear medicine device is mounted in this room.

  “Nuclear medicine processing” is various medical measures (diagnosis, treatment, etc.) performed using radiation, and in particular, examinations using a PET apparatus (so-called PET camera), a gamma camera, or the like.

  The “radiation management area” is an area constructed so as to manage the radiation dose in the section and not to let the radioactivity escape to the outside. Generally, an exhaust / air conditioning facility having an exhaust purification function and a drainage facility having a drainage purification function are provided. These facilities should be provided in the fixed section.

  The “moving passage” is a tube-like closed passage that is constructed between two passages and is large enough to allow a person to pass therethrough. The closed passage is a tube-shaped passage partitioned from the outside world, and is designed so that the air in the radiation control section is difficult to leak outside. As a preferred example, the moving passage can be structured to insert a temporary bridge through a cylindrical sleeve as described later, but is not necessarily limited thereto. For example, it is also possible to adopt a structure in which the lower end of an inverted U-shaped hood is airtightly connected and locked to both ends of a temporary bridge, such as a covered wagon. However, the former structure is superior in terms of workability and airtightness. The moving passage is configured to be retractable when the moving section leaves the fixed section. This moving passage may be a passage means independent of any of the ground facilities and the transportation facility like the passenger boarding bridge of Patent Document 3, but may be extended to extend from one of the two sections to the other. .

In addition , a trace amount of radioisotope may be present in the air in order to handle FDG and the like in the radiation control section, and if such air leaks outside, the surrounding environment may be adversely affected. Therefore, the whole radiation control section is made negative pressure to prevent radiation leakage. In particular, the negative pressure in the movement path is ensured to such an extent that radiation leakage from the movement path can be prevented. Care should be taken to design the moving passage so as to be airtight so that air leakage can be prevented by this negative pressure.

The second means includes a first means, and a second passage opening 50 opens into the right or left side wall of the vehicle to form a moving section 30, the vehicle is in the stationary section 2 by forward and backward in the longitudinal Positioning with the 1st passage 12 is provided.

  This means proposes a moving section in which the moving path can be installed particularly quickly and safely. Although the rear wall of the vehicle body can be considered as a location where a vehicle entrance such as an automobile is installed, in this case, when parking so as to face the fixed section access port, the position in the lateral direction of the vehicle body If it is shifted, it is necessary to move the car forward and cut the steering wheel, which makes it difficult to align. In addition, since automobiles equipped with PET devices and the like are quite large, there is a possibility that third parties around the building may be exposed to radiation when shielded by the radiation-shielded car body when the entrance is installed on the side wall of the car body. Can be reduced. In this sense, it is preferable that the passage is installed in the middle part in the front-rear direction of the side wall.

The third means has the first means or the second means , and the moving passage 52 is removably installed between the peripheral portions of the two passages 12 and 50, and the inside of the passage is outside air. And a temporary bridge 62 which is removably bridged between the lower ends of the passage openings 12 and 50 through the inside of the sleeve.

    In this means, a structure of a moving path that can easily connect two passages is proposed. In particular, since the sleeve is provided so as to surround the passageway, the moving bridge can be installed so as not to let air escape.

    The “sleeve” is provided so as to partition the passage from the outside with a bellows-like or expandable / contractible cylindrical sheet material. This reduces the possibility of radioisotope spills from the inside.

The fourth means includes the third means, and the sleeve 54 is flexible, and both ends of the temporary bridge 62 are provided with the passage 12 in the longitudinal and lateral directions of the vehicle. 50 is loosely inserted.

  In this means, a moving path that flexibly and safely connects the fixed section and the moving section is proposed. A vehicle equipped with a PET device or the like, which is a moving section of the present invention, is scheduled to visit a fixed section provided in a medical facility in each place and stay for about one day to one week per facility. Meanwhile, the moving section and the fixed section are connected via a moving path. For example, if the connecting section is connected with a rigid structure such as the passenger boarding bridge described above, the moving section moves when the moving section shakes due to an earthquake or strong wind. There is a possibility that the passage is damaged or an undesired load is applied to the fixed section side. In order to avoid such inconvenience, the sleeve and the temporary bridge constituting the moving path can flexibly cope with shaking.

The fifth means has the third means or the fourth means, and the sleeve 54 is formed of an elastic sleeve that extends from one of the two passages 12 and 50 to the other, and this sleeve. The tip of the cylinder is provided so as to be locked to the peripheral part of the other passage.

  This means proposes that the sleeve be a telescopic sleeve. In this way, when the moving passage is withdrawn, the sleeve can be contracted and folded to the one passage side. It may be folded on either the fixed section side or the moving section side.

    The “sleeve cylinder” can be, for example, a bellows-like member, particularly a hood member.

    In addition, about the means to latch the front-end | tip of a sleeve, you may provide in the circumference | surroundings of the other passage, and may be provided in the front-end | tip of a sleeve.

The sixth means includes the third means or the fourth means, and the sleeve 54 extends from the peripheral part of the two passages 12 and 50 in the opposite direction, and a pair of extendable sleeve cylinders 54a, 54b, and a locking means 60 that can be engaged with each other is provided at the tip of the pair of sleeve cylinders.

In this means, the single sleeve cylinder of the fifth means is replaced with a pair of sleeve cylinders attached to each passage, and when the moving passage is withdrawn, these sleeve cylinders are separated into the fixed section side and the moving section side. It is something that can be done. What has been described in the fifth means is incorporated in this means. The locking means at the tips of both sleeves can be a hook-and-loop fastener.

The seventh means is a mobile vehicle that is used as a moving section of the nuclear medicine system of the treatment room mobile type of the fifth means or the sixth means, and has a passage 50 opened on the outer wall of the vehicle body. Are provided with a sleeve cylinder 54b that can be extended to the fixed section side and provided with a locking means 60 at the tip, or a locking means 60 that can be engaged with the sleeve cylinder on the fixed section side. The stopping means 60 is characterized in that the fixed section 2 and the moving section 30 are formed in an airtight manner via a sleeve.

    In this means, it has been proposed that a locking means for fixing the extendable sleeve is provided near the passage of the moving section. This locking means may be directly attached around the transition port as shown in FIG. 8, or may be attached to the tip of the sleeve tube protruding from the transition port as shown in FIG. In the locking means 60, each of the distal end portions of the moving passage forming portion on the moving section side and the moving passage forming portion on the fixed section side can come into contact with each other. It has a locking force that can be pressed against each other and maintain the airtightness of the moving passage.

The eighth means is a standby facility used as a fixed section of the treatment room mobile nuclear medicine system of the fifth means or the sixth means, and the passage 12 is opened on the outer wall thereof. Are provided with a sleeve cylinder 54a that can be extended to the moving section side and provided with a locking means 60 at the tip, or a locking means 60 that can be engaged with the sleeve cylinder on the moving section side. The stopping means 60 is characterized in that the fixed section 2 and the moving section 30 are formed in an airtight manner via a sleeve.

In this means, a structure of a standby facility used together with the seventh means is proposed. What has been described in the seventh means is incorporated in this means. An expansion / contraction mechanism that controls / guides expansion / contraction of the sleeve cylinder may be provided.

The invention according to the first means has the following effects.
○ Because the part for carrying out radiation treatment in the nuclear medicine system is a moving section, a medical institution where expensive radiation equipment cannot be permanently installed can be used as a fixed section, and the equipment can be used for a necessary period of time. Can be provided at low cost.
○ Since the person to be treated is guided through the passages 12 and 50 connected to the moving section 30, the person to be treated does not rub against a general visitor, and unnecessary exposure can be avoided.

Further , according to the invention relating to the first means, since the radiation sealing section is decompressed, radioactive air does not leak to the outside.

According to the invention relating to the second means, the passage 50 is provided on the side wall of the vehicle of the moving section 30, so that the positioning with the passage of the fixed section 2 is easy.

The invention according to the third means has the following effects.
Since the temporary bridge 62 passes through the sleeve 54, it is possible to connect to the fixed section 2 without leaking the air in the moving section by opening the door of the passage after installing the connecting hood.
The sleeve 54 has flexibility, and prevents damage to the moving path by deforming flexibly in response to vibration, for example, during an earthquake.

The invention according to the fourth means has the following effects.
O Since the temporary bridge 62 is installed with play in the front and rear and left and right directions between the two sections, the tolerance of the parking position of the vehicle body with respect to the fixed section 2 is large.
○ Prevents the shaking of a car from being transmitted to a building or damaging a temporary bridge during an earthquake.

According to the fifth and sixth aspects of the invention, since the moving path is formed by the retractable sleeve 54 and the retractable temporary bridge 62, the moving path can be easily attached and removed.

According to the seventh aspect of the invention, since the locking means 60 or the sleeve cylinder with the locking means is attached around the passage of the automobile as the moving section, the connection with the fixed section can be easily performed. it can.

According to the eighth aspect of the invention, since the locking means 60 or the sleeve cylinder with the locking means is attached around the passage opening of the standby facility that is the fixed section, the connection with the moving section is easily performed. be able to.

  1 to 10 show a treatment room mobile nuclear medicine system according to a first embodiment of the present invention.

  This system consists of a fixed section 2 and a moving section 30. The fixed section and the moving section are detachably connected to form a radiation management section.

  The fixed section 2 is a building where the person to be treated waits. The entrance 4 opens to the housing 3A, the reception 6, the FDG administration room 8, the rest room (waiting room) 10, and the moving section. Are arranged so as to be movable in the order of 4 → 6 → 8 → 10 → 12. In the figure, 14 is a washroom (WC), 16 is a waste storage place, 20 is a medication preparation room, and 22 is a drainage facility.

  The first passage 12 is provided with an airtight door 12a that can be opened and closed from the inside of the building. Furthermore, this building has an airtight structure so that even if radioisotopes are scattered from the administration chamber into the air, they do not leak outside. The first passage 12 is preferably the same size as a second passage described later, and the lower ends of both mouth edges are preferably the same height. The fixed section is equipped with air conditioning equipment and removes foreign substances in the air with a filter and exhausts them. This air conditioning equipment also serves as the decompression means 13 and keeps the interior of the building at a pressure slightly lower than the atmospheric pressure. The fixed section shown is a prefabrication type independent building, but a part of an existing building such as a hospital may be used as the fixed section. The outer wall of this building is made of a radiation shielding material such as concrete or lead. In the case of a one-story building, it is sufficient to provide radiation shielding only on the side walls. However, when the first floor part of a multi-story building is a fixed section, radiation shielding is also applied to the floor slab between the first and second floors. Shall be applied.

  The moving section 30 is an automobile on which PET is mounted. Since the existing PET is quite bulky, the width of the automobile needs to be as large as possible in the range from the lane width of the road. Furthermore, in order to secure a space for inspection, the length in the lane direction (front-rear direction) is also necessary. Therefore, it is desirable that the automobile is a vertically long large automobile having the same size as a bus or a trainer.

The automobile in the illustrated example includes a self-propelled portion 32 equipped with an engine and a cockpit, and a casing 34 that is pulled by the self-propelled portion and has wheels on the lower surface. The inside of the casing is a space for performing medical practice, isolated from the driver's seat and the outside. A radiation shield is provided on the inside of the front wall, the left and right side walls, and the rear wall of the casing. In order to prevent the casing from becoming bulky, a lead plate having a high radiation shielding effect may be attached inside each wall. An inspection chamber 36 is provided at the rear of the casing 34 and a recovery chamber 38 is provided at the front of the casing. In the examination room 36, PET is installed as a nuclear medical device 42. An outlet 40 is formed at a suitable place in the recovery chamber 38. In FIG. 1, reference numeral 46 denotes an operation room (a room for operating various devices and facilities).

  The wall portion on the side of the PET is preferably an overhanging wall portion 44 that can overhang in the left-right direction. This is because, considering the current road conditions in Japan and the size of PET, the width of the casing is designed so that it can pass through ordinary roads. This is because there is almost no space for people to go through or work. Therefore, when traveling on the road, the side wall of the casing is made flat as shown in FIG. 4, and when connected to the fixed section, the wall portion on the side of the PET is projected to the left and right by an unillustrated extension mechanism. . A radiation shielding plate is attached to both front and rear ends of the overhanging portion, and a tread board (not shown) is laid on the floor side of the overhanging portion. These operations can be performed manually or automatically. Moreover, the leg part 48 protrudes from the lower part of a casing, and is supporting the movement section stably.

A passage opening (second passage opening) 50 from the fixed section is provided at an appropriate position (in the illustrated example, the middle portion in the left-right direction) on the left and right side walls of the casing. An airtight door 50a is also provided at this entrance. The door shown in the figure is opened outwardly in a double door. However, if there is a space in the vehicle, it may be opened inside, or may be formed to slide inside the casing wall. The same applies to the above-described hermetic door 12a.

    A moving path 52 is installed between the first and second passages 12 and 50. This moving passage is formed by a sleeve 54 and a temporary bridge 62.

  As shown in FIG. 5, the sleeve 54 is formed of a telescopic sleeve cylinder having a base end portion attached to the periphery of the passage 12 of the fixed section, and the distal end portion of the sleeve cylinder around the passage opening 50 of the moving section. Is detachably and airtightly locked. The sleeve cylinder is formed of a material that can block the inside of the passage from outside air. Further, the sleeve can be recovered to the fixed section side by releasing the locking of the sleeve tube tip. Further, as shown in FIG. 6, the sleeve may be formed by two sleeve cylinders 54 a and 54 b protruding from the passage 12 and the passage 50. The tips of these sleeve cylinders are locked together. These structures will be further described later.

The temporary bridge 62 is a plate material spanned between the fixed section near the passageways 12 and 50 and the floor surface of the moving section. This plate material is stored inside the moving section (for example, on the floor of the moving section) when the moving passage is withdrawn, and when the moving passage is provided, an operator passes between the passages 12 and 50. Can do. Both ends of the temporary bridge 62 are loosely inserted into the passages 12 and 50 with play with respect to the edges and doors of the passages to the extent that they are not damaged due to the shaking of the earthquake. Further, in the illustrated example, the hermetic doors 12a and 50a are each opened in a double-sided manner into the moving passage. When these doors are provided with radiation shielding shields, it is advantageous that radiation emitted from the moving passage to the side can be shielded. However, since radiation shielding materials such as lead are generally heavy, if the door is equipped with the radiation shielding material, the pivot shaft of the door may be damaged. Therefore, the movement path 52 is preferably formed as short as possible to prevent accidental exposure to a person outside the movement path. For the same reason, the moving path may be arranged in a portion (preferably the middle portion in the front-rear direction) of the moving section that is long in the front-rear direction, excluding both front and rear ends. Then there is no possibility of exposure unless there is a person in the short gap between the moving section and the fixed section, and irrelevant passers-by will not enter such places, so prevent inappropriate radiation exposure. Can do.

In the above configuration, the automobile which is the moving section 30 circulates the fixed section 2 installed in the premises of various hospitals and is provided for diagnosis service. The vehicle is stopped next to the fixed section 2 so that the first and second passages 12 and 50 face each other. In the upper half of FIG. 2, the moving section 30 shown by a broken line moves backward and slowly with respect to the fixed section 2 drawn by a solid line, and the second passage 50 tries to match the first passage 12. Is drawn. In this case, the longitudinal displacement of the two passages can be adjusted by the forward / backward movement of the automobile as the moving section, and the lateral displacement of the two passages can be adjusted by opening the steering wheel of the automobile. Accordingly, it is possible to align the first and second passages with the same ease as in a car garage. In addition, since the sleeve 54 is flexible and stretchable, there is no problem in installing the two passages between the two passages even if the two passages are slightly displaced from the precise facing position to the front and rear and to the left and right. . Inside the fixed section 2, the internal pressure is kept slightly lower than the outside air by the decompression means 13. Therefore, after extending the leg 48 of the casing to stably support the moving section, the sleeve on the fixed section side is extended to lock the tip of the sleeve around the second passage 50 of the moving section. When the airtight doors 12a and 50a at the first and second passages are opened, the air inside the moving section 30 and the moving passage 52 flows into the fixed section 2 side by the decompression means 13, so that it does not flow out of the sleeve to the outside. . In this way, the insides of the fixed section 2, the movement path 52 and the movement section 30 are connected to form one radiation protection section. Thereafter, when the temporary bridge 62 is pulled out from the inside of the moving section and spanned between the first and second passages 12 and 50, a moving passage 52 is formed.

  After connecting the fixed section 2 and the moving section 30 in this way, a PET examination service can be performed using this facility. The person to be treated enters through the entrance 4, receives FDG medication, waits in the rest room, and then enters the moving section 30 through the moving path 52. Then, after undergoing the examination in the examination room, it is sufficient to rest the body for a certain period of time and leave the exit. Since the screening service itself is publicly known, a detailed explanation is omitted. When the examination service period is over, it may be withdrawn according to the reverse procedure of assembly of the moving passage.

  7 to 9 show one preferred example of the movement path of the present embodiment. First, FIG. 7 shows the structure of the first passage 12 of the fixed section 2 and FIG. 8 shows the structure of the second passage 50 of the moving section 30 as viewed from the outside in a closed state. ing. As shown in FIG. 7, a sleeve 54 is attached to the outer wall portion around the first passage 12. The sleeve is attached to the fixed section side in a folded state with the base end portion of the expandable bellows-like sleeve tube connected to the outer wall portion around the first passage opening. The sleeve 54 is most easily understood as being in the expanded state shown in FIGS. 9B to 9C, but the cylindrical wall portion of the sleeve cylinder is formed of a cloth-like air shielding material 56 and the tip of the cylindrical wall is formed. Further, a plate-like contact ring 58 for contacting the casing is provided. Further, an operating device 64 for extending and supporting the sleeve cylinder as shown by a dotted line in FIG. 7 is provided inside the sleeve. This device is a well-known means disclosed in, for example, Patent Document 4 described above. Briefly described, each base end of the first arm 64a and the second arm 64b can be moved up and down freely. The first arm is engaged with the edge, the distal end of the first arm is pivotally attached to the distal end of the sleeve cylinder, and the distal end of the second arm is pivotally attached to the intermediate portion of the first arm. Each base end of the second arm is provided so as to be able to approach or separate. This operating device can be operated by a switch (not shown).

In FIG. 8, L ₁ and L ₂ are closed curves drawn at regular intervals from the edge of the second passage. When extending the sleeve, it is assumed that the leading end portion of the sleeve abuts the casing outer surface portion between the closed curve L ₁ and L _2. And the casing outer wall portion between the rim of the closed curve L ₁ and the second passage opening 50, rotatably as locking means 60 of the L-shaped when viewed from the direction along the outer wall to arrow 8 The contact ring is formed so as to be sandwiched between the casing and the locking means. It goes without saying that such a structure of the locking means is one suitable example and can be changed as appropriate.

  9A to 9C show a procedure for constructing the moving passage 52 using the sleeve 54 shown in FIGS. 7 and 8. The sleeve cylinder is extended from the state shown in FIG. 5A, and the contact ring 58 is brought into contact with the outer surface portion of the casing around the second passage 50. Next, the locking means 60 is rotated so that the front end portion of the locking means 60 is locked to the back surface of the contact ring 58 as shown in FIG. I have to. From this state, the airtight doors 12a and 50a of the first and second passages are opened. For convenience of explanation, the hermetic door 50a is slidable in the front-rear direction. A temporary bridge is installed between the first and second access gates.

  FIG. 10 shows another preferred example of the movement path of the present embodiment. In this example, the sleeve 54 is formed of a first sleeve cylinder 54 a attached to the fixed section 2 side and a second sleeve cylinder 54 b attached to the moving section 30 side. Each of the sleeves has the same structure as the sleeve cylinder of FIG. In the illustrated example, the second sleeve cylinder 54 b is formed shorter than the first sleeve cylinder 54 a so that the second sleeve cylinder can be easily accommodated in the moving section 30. However, the two sleeve cylinders may have the same length, and the second sleeve cylinder may be longer.

    And each front end surface of the contact ring 58 of both sleeve cylinders can contact | abut. A hook-and-loop fastener is formed as a locking means on each of the front end surfaces so that the front end surfaces can be locked only by lightly contacting them. Note that it is only the longer first sleeve cylinder 54a that controls the expansion and contraction by the operating device 64, and the second sleeve cylinder is preferably extended by hand and locked to the first sleeve cylinder. When the operating device is used, the extension of the sleeve tube is constant, while the distance between the fixed section 2 and the moving section 30 may vary to some extent depending on the driving skill of the driver. Therefore, when the second sleeve cylinder is stretched by a human hand and locked to the first sleeve cylinder, it is convenient that both sleeve cylinders can be reliably locked regardless of the stop position.

  FIG. 11 shows a second embodiment of the present invention. In this embodiment, the moving passage 52 is formed between the front end of the fixed section that is long in the front-rear direction and the rear end of the moving section. For other specific structures, the description of the embodiment of FIGS.

  FIG. 12 shows a third embodiment of the present invention. In this embodiment, the fixed section 2 is a moving vehicle provided with a standby room, an FDG administration room, a standby room, and the like. The internal structure may be the same as in FIG. The same applies to the fact that radiation shielding measures are taken inside the car body. On the other hand, there is no need for a structure (such as an overhanging wall) for mounting the PET apparatus as in FIG. This moving vehicle is pulled by a car (self-propelled part 32) in the same manner as the casing 34 of the moving section, separated from the car at the site, and the vehicle body (housing) 3B is supported by the legs 48 and fixed to the site. The vehicle body (housing) 3B is provided with a passage 12 on the outer wall.

    The fixed section may be constructed as part of an existing hospital as in the first embodiment, but the receiving hospital may not have the space to build such equipment, and such treatment may not be available in the area. Since we don't know how much demand there is, we may want to rent equipment for use as a fixed section for the time being. The present embodiment meets such a demand.

It is a top view of a 1st embodiment of a treatment room mobile nuclear medicine system of the present invention. FIG. 2 is a perspective view of the system of FIG. FIG. 2 is a side view of a moving section according to the system of FIG. 1. FIG. 2 is a plan view of the moving section of the moving section according to the system of FIG. It is the top view to which the principal part of the system of FIG. 1 was expanded. It is a top view of the modification of the principal part of FIG. It is a side view which shows the structure around the entrance of the fixed section of the system of FIG. It is a side view which shows the structure around the entrance of the movement section of the system of FIG. It is explanatory drawing which shows an example of installation of the movement path | route of the system of FIG. It is explanatory drawing which shows the other example of installation of the movement path | route of the system of FIG. It is a top view of 2nd Embodiment of the treatment room mobile nuclear medicine system of this invention. It is a perspective view of 3rd Embodiment of the treatment room mobile nuclear medicine system of this invention.

Explanation of symbols

2 ... Fixed section 3A, 3B ... Housing 4 ... Entrance 6 ... Reception 8 ... Administration room 10 ... Rest room 12 ... First passage 12a ... Airtight door 13 ... Pressure reducing means 14 ... Washroom 16 ... Storage 20 ... Preparation room 22 ... Drainage equipment 30 ... Moving section 32 ... Self-propelled part
34 ... Casing 36 ... Examination room 38 ... Recovery room 40 ... Outlet 42 ... Nuclear medical device 44 ... Overhang wall part 46 ... Operation room 48 ... Leg part 50 ... Second passage 50a ... Airtight door
52 ... Movement passage 54 ... Sleeve 54a, 54b ... Sleeve cylinder 56 ... Air shielding material 58 ... Contact ring 60 ... Locking means 62 ... Temporary bridge 64 ... Operating device 64a, 64b ... Arm 64c ... Drive part

Claims (8)

A fixed section ( 2 ) containing the patient's waiting area;
A mobile section ( 30 ) having a body with radiation shielding for performing nuclear medicine processing and capable of self-propelling or towing;
A nuclear medicine system that can be connected freely to humans,
In the state where the moving section ( 30 ) is stopped near one side of the fixed section ( 2 ) , a sealable passageway ( 12, 50 ) is provided at a position corresponding to the outer wall of the moving section and the fixed section, and these passageways are provided. ( 12, 50 ) , a moving passage ( 52 ) for passage of the person to be treated, constructed so as to be retractable, is installed,
By making this moving path a closed path that is cut off from the outside air, the fixed section ( 2 ) , the moving path ( 52 ), and the moving section ( 30 ) are isolated from the surroundings as one radiation control section,
Furthermore, the treatment room is movable , characterized in that it is provided with a decompression means (13) for decompressing the radiation control section formed by connecting the fixed section (2), the movement passage (52) and the movement section (30) to each other. Nuclear medicine system. A second passage ( 50 ) is opened in the right or left side wall of the vehicle forming the moving section ( 30 ), and the first passage ( 12 ) of the fixed section ( 2 ) is moved forward and backward by the vehicle. The treatment room mobile nuclear medicine system according to claim 1 , wherein the positioning is possible. Moving passage (52) is withdrawn capable installed between the periphery of the two-way port (12, 50), and a sleeve (54) for blocking the interior of the passage from the outside air, through the interior of the sleeve The treatment room movable type according to claim 1 or 2 , characterized in that it is formed by a temporary bridge ( 62 ) removably bridged between each lower end of the passageway ( 12, 50 ). Nuclear medicine system. The sleeve ( 54 ) is flexible, and both ends of the temporary bridge ( 62 ) are loosely inserted into the passageway ( 12, 50 ) with play in the front-rear and left-right directions of the vehicle. The treatment room mobile nuclear medicine system according to claim 3 , wherein: The sleeve ( 54 ) is formed of a stretchable sleeve that extends from one of the two passages ( 12, 50 ) to the other, and the tip of the sleeve can be locked to the periphery of the other passage. The treatment room mobile nuclear medicine system according to claim 3 or 4 , wherein the treatment room mobile nuclear medicine system is provided. The sleeve ( 54 ) is formed of a pair of expandable and contractible sleeve cylinders ( 54 a, 54 b ) extending in the opposite direction from the periphery of the two passage openings ( 12, 50 ) , and the distal ends of the pair of sleeve cylinders The treatment room mobile nuclear medicine system according to claim 3 or 4 , characterized in that a locking means ( 60 ) capable of being engaged with each other is provided. A mobile vehicle used as a mobile section of the nuclear medicine system of the treatment room mobile type according to claim 5 or 6 , wherein a passage ( 50 ) is opened on the outer wall of the vehicle body, and fixed to the periphery of the passage. A sleeve cylinder ( 54b ) that can be extended to the section side and provided with a locking means ( 60 ) at the tip, or a locking means ( 60 ) that can be engaged with the sleeve cylinder on the fixed section side is provided. A moving vehicle equipped with a nuclear medicine device, wherein the stopping means ( 60 ) is formed so that the fixed section ( 2 ) and the moving section ( 30 ) can be hermetically coupled via a sleeve. A standby facility used as a fixed section of the treatment room mobile nuclear medicine system according to claim 5 or 6 , wherein a passage ( 12 ) is opened on an outer wall of the standby facility and moved to a peripheral portion of the passage. A sleeve cylinder ( 54a ) that can be extended to the section side and provided with a locking means ( 60 ) at the tip, or a locking means ( 60 ) that can be engaged with the sleeve cylinder on the moving section side is provided. The standby means ( 60 ) is characterized in that the stationary section ( 2 ) and the moving section ( 30 ) are formed so as to be airtightly connectable via a sleeve.

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