JP2019216953A - Radioactive medicine administration device - Google Patents

Abstract

To appropriately detect malfunction after replacement of a piping component.SOLUTION: A radioactive medicine administration device 1 includes: a piping component 91 including a syringe capable of sucking and discharging radioactive medicine or transport liquid for transporting radioactive medicine, a suction line for supplying the radioactive medicine or transport liquid to the syringe, a line for connecting the syringe to an administration part capable of connecting with an administration destination for the radioactive medicine, and a plurality of check valves provided on the suction line and on the line; pinch valves 33, 35 as valves for performing line opening/closing operation on the line of the piping component 91; operation units 51, 52 as a pressure detection unit for detecting pressure in the line; and a control unit 41 for controlling opening/closing of the valves and suction and discharge of the syringe. The control unit 41 makes the pressure detection unit detect gas pressure in the line when discharge of the syringe is performed in a state of the valves being closed and determines whether or not a detection result is within a predetermined range.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a radiopharmaceutical administration device.

  BACKGROUND ART Conventionally, as a technique in this field, a radiopharmaceutical administration device described in Patent Literature 1 below is known. In this device, a transport line for transporting the transport liquid connects the transport liquid syringe and the winged needle. A drug line for supplying a radiopharmaceutical merges with the transport line. After a desired amount of radiopharmaceutical is sent from the drug syringe to the transport line through the drug line, the radiopharmaceutical is administered to the patient through the transport line and the winged needle by being pushed out with the transport liquid syringe together with the transport liquid. Is done. The above transport lines and the like are connected using a pinch valve or the like.

JP 2013-1440065 A

  In the above-mentioned radiopharmaceutical administration apparatus, parts (piping parts) related to liquid supply such as a line through which a liquid flows and a syringe are disposable (disposable) consumables and are frequently replaced. Here, when an event in which a part of the piping component does not operate properly, that is, a defect in the piping component occurs, an operator who uses the apparatus may be affected.

  The present invention has been made in view of the above, and an object of the present invention is to provide a radiopharmaceutical administration device capable of appropriately detecting a defect in a piping component.

  In order to achieve the above object, a radiopharmaceutical administration device according to an aspect of the present invention includes a syringe capable of inhaling and discharging a radiopharmaceutical or a transport liquid for transporting the radiopharmaceutical, and a radiopharmaceutical with respect to the syringe. Or, a suction line for supplying the transport liquid, a line for connecting the syringe to an administration section connectable to an administration destination of the radiopharmaceutical, and a plurality of checkers provided on the suction line and on the line A piping component including a valve, a valve that performs an opening and closing operation of the line on the line of the piping component, a pressure detection unit that detects a pressure in the line, opening and closing of the valve, suction of the syringe And a control unit for controlling discharge, wherein the control unit sets the pressure of gas in the line when discharging the syringe in a state where the valve is closed to the pressure. Detected by the detection section, the detection result is judged whether it is within a predetermined range.

  According to the above-mentioned radiopharmaceutical administration device, the control unit detects the gas pressure in the line when the syringe is discharged in a state where the valve on the line of the pipe component is closed, and the detection result. Is determined to be within a predetermined range, it is possible to confirm the operation of the piping components, particularly the operation of the check valves provided on the line and the suction line. Therefore, after replacing the piping components, it is possible to appropriately detect defects in the piping components.

  Here, the control unit may be configured to prohibit the operation of administering the radiopharmaceutical using the piping component when the detection result is not within the predetermined range.

  As described above, when the detection result is not within the predetermined range, the operation of dispensing the radiopharmaceutical using the plumbing component is prohibited, and the administration of the radiopharmaceutical is performed using the plumbing component determined to be defective. The operation can be prevented from being performed.

  In addition, the control unit, when the detection result is not within a predetermined range, detects replacement of the piping component, and, using the replaced piping component, the syringe with the valve closed. The pressure detector detects the pressure of the gas in the line at the time of discharging the liquid, and when the detection result is within a predetermined range, prohibits the operation of administering the radiopharmaceutical using the piping component. Can be canceled.

  As described above, when the detection result is not within the predetermined range, the replacement of the piping component is detected, and the line when the syringe is discharged with the valve closed using the replaced piping component is used. When the detection result of the pressure of the gas in the container falls within a predetermined range, the prohibition of the operation of administering the radiopharmaceutical using the piping component is released, and the piping component determined to be defective is replaced with a new piping component. After confirming that the parts have been replaced and that the replaced piping parts are not defective, the administration operation of the radiopharmaceutical can be resumed. It is possible to more reliably prevent the administration operation from being performed.

  Further, the control unit may perform a predetermined number of suctions and discharges of the syringe with the valve opened before discharging the syringe with the valve closed.

  As described above, before discharging the syringe with the valve closed, the suction and discharge of the syringe are performed a predetermined number of times with the valve opened, thereby moving the gas in the line by the suction and discharge of the syringe. The break-in operation of the piping component can be performed by using. For this reason, it is possible to eliminate a malfunction due to a manufacturing error or the like of each part of the piping component, and it is possible to prevent a defect of the piping component from being unnecessarily detected.

  ADVANTAGE OF THE INVENTION According to this invention, the radiopharmaceutical-administration apparatus which can detect the defect after replacement of a piping component appropriately is provided.

It is a figure which shows the principal part of a radiopharmaceutical administration device typically. It is an overall view of a radiopharmaceutical administration device. It is a flowchart explaining the procedure of the break-in operation | movement performed by control of a control part. It is a flowchart explaining the procedure of operation | movement confirmation of a piping component.

  Hereinafter, an embodiment for carrying out the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description.

  FIG. 1 is a diagram schematically illustrating a main part of the radiopharmaceutical administration device 1. FIG. 2 is an overall view of the radiopharmaceutical administration device 1.

  The radiopharmaceutical administration apparatus 1 (hereinafter, simply referred to as “apparatus 1”) illustrated in FIG. 1 is an apparatus that administers a radiopharmaceutical R to a subject (administration destination) to undergo a PET (positron tomography) examination.

  The device 1 includes a drug vial 3 containing a radiopharmaceutical R, and a drug syringe 5 for inhaling the radiopharmaceutical R from the drug vial 3 and discharging the inhaled radiopharmaceutical R. The apparatus 1 also includes a saline pack 7 containing a saline solution (transport solution) Q, and a saline syringe 9 (transport solution syringe) for sucking the saline solution Q from the saline package 7 and discharging the sucked saline solution Q. ).

  The apparatus 1 includes a saline intake line 13 for connecting the saline pack 7 and the syringe 9, and a transport line 15 for connecting the saline syringe 9 and the winged needle 11 (administration unit). The saline intake line 13 and the transport line 15 may partially overlap near the entrance and exit of the saline syringe 9. The raw food suction line 13 includes a sampling needle 13a inserted into the raw food pack 7. The device 1 also includes a medicine suction line 17 connecting the medicine vial 3 and the medicine syringe 5, and a medicine line 19 connecting the medicine syringe 5 and the transportation line 15. The drug line 19 joins the transport line 15 at a junction 21 between the saline consuming syringe 9 and the winged needle 11. The medicine inhalation line 17 and the medicine line 19 may partially overlap near the entrance and exit of the medicine syringe 5. The drug suction line 17 includes a sampling needle 17a inserted into the drug vial 3.

  The apparatus 1 further includes a waste liquid line 27 branched from the transport line 15 at a branch 23 between the junction 21 and the winged needle 11. The end of the waste liquid line 27 is connected to the waste liquid bottle 10. Further, a waste liquid buffer 28 is provided in the middle of the waste liquid line 27. Hereinafter, in the transport line 15, the portion from the edible syringe 9 to the merging portion 21 is the upstream portion 15 a of the transport line, the portion from the merging portion 21 to the branch portion 23 is the midstream portion 15 b of the transport line, and the winged needle 11 is from the branch portion 23. The section up to this point is referred to as a transport line downstream section 15c.

  The device 1 includes a plurality (five) of check valves V11, V13, V15, V17, and V19. The check valves V11 and V13 are provided on the saline intake line 13. The check valve V11 is provided on the transport line upstream portion 15a, and restricts the flow of the physiological saline Q in the transport line upstream portion 15a to one direction in a direction from the saline consuming syringe 9 to the winged needle 11. Ban. The check valve V13 restricts the flow of the physiological saline Q in the saline intake line 13 in one direction from the saline pack 7 to the saline syringe 9, and inhibits the backflow. The check valve V15 is provided on the upstream portion 15a of the transport line. The check valve V15 restricts the flow of the physiological saline Q in the transport line upstream portion 15a in one direction from the saline syringe 9 to the winged needle 11, and inhibits the backflow. The check valve V17 is provided on the medicine suction line 17. Both the check valves V11 and V15 are provided on the transport line upstream portion 15a, and prohibit the reverse flow of the physiological saline Q in the transport line upstream portion 15a.

  The check valve V17 restricts the flow of the radiopharmaceutical R in the drug suction line 17 in one direction from the drug vial 3 to the drug syringe 5, and inhibits the backflow. The check valve V19 is provided at the junction 21. The check valve V19 allows the flow of the radiopharmaceutical R from the drug line 19 to the transport line 15, and prohibits the backflow of the physiological saline Q from the transport line 15 to the drug line 19.

  As described above, the check valves V11, V13, V15, V17, and V19 are connected to the line (the transport line 15 or the drug line 19) that connects the syringe (the drug syringe 5 or the saline syringe 9) and the administration section (the winged needle 11). ) Or on an inhalation line (saline inhalation line 13 or inhalation line 17) for supplying a drug or a transport liquid to the syringe. As the structure of the check valves V11, V13, V15, V17, V19, for example, a duckbill valve structure may be adopted.

  A measuring unit 31 for measuring the radioactivity of the radiopharmaceutical R sucked into the drug syringe 5 is provided around the drug syringe 5. A pinch valve 33 that can be opened and closed is provided on the downstream portion 15 c of the transport line, and a pinch valve 35 that can be opened and closed is provided on the waste liquid line 27. A passage sensor 37 for detecting passage of the radiopharmaceutical R is provided on the downstream portion 15c of the transport line. A filter 39 is provided at a position immediately upstream of the winged needle 11 on the downstream portion 15c of the transport line.

  In addition, the apparatus 1 includes a shielding chamber 43 for storing the drug vial 3, a shielding chamber 45 for storing the drug syringe 5, and a shielding chamber 47 for storing the waste liquid bottle 10 in order to shield radiation from the radiopharmaceutical R. Have.

  In addition, the device 1 includes a control unit 41 that drives pistons of the drug syringe 5 and the saline syringe 9 and controls suction and discharge of liquid by the drug syringe 5 and the saline syringe 9. The medicine syringe 5 is provided with an operation unit 51 for pushing / pulling out a syringe rod 50 inserted into the syringe in order to perform a suction / discharge operation. The operation unit 51 has a pressure sensor for detecting pressure from the syringe. That is, the operation unit 51 also functions as a pressure sensor (pressure detection unit) that detects the pressure in the line. Similarly to the medicine syringe 5, the raw-eating syringe 9 is provided with an operation unit 52 for pushing and pulling out the syringe of the syringe rod 90 inserted into the syringe in order to perform the suction / discharge operation of the syringe. The operation section 52 also has a function as a pressure sensor (pressure detection section) for detecting the pressure in the line. The control unit 41 has a function of confirming the above-described operation in the line by using the measurement values of the pressure sensors provided in the operation units 51 and 52. This will be described later. The control unit 41 further controls opening and closing operations of the pinch valves 33 and 35.

  Each of the lines (the saline inhalation line 13, the transport line 15, the medicine inhalation line 17, the medicine line 19, etc.) is formed of a tube such as a sterilized extension tube, for example. In addition, for example, a governmental material such as a T-shaped tube is appropriately inserted into a connection portion or a branch portion of each line.

  Subsequently, an operation related to the administration of the radiopharmaceutical by the device 1 will be described. The device 1 operates as follows by driving the medicine syringe 5, the saline syringe 9, the pinch valves 33, 35, and the like under the control of the control unit 41. The state in which the transport line 15 is filled with the physiological saline Q is defined as an initial state. From this initial state, the winged needle 11 is inserted into the subject. Thereafter, when the piston of the drug syringe 5 is pulled down, the radioactive drug R in the drug vial 3 is sucked into the drug syringe 5 through the drug suction line 17.

  Thereafter, with the pinch valve 33 closed and the pinch valve 35 opened, the piston of the medicine syringe 5 is pushed up. Thereby, the radiopharmaceutical R is pushed from the drug syringe 5 to the transport line 15 through the drug line 19 and the check valve V19. At this time, the excess physiological saline Q in the transport line 15 is discharged to the waste liquid bottle 10 through the waste liquid line 27. By this operation, a part of the physiological saline Q on the transport line 15 is replaced with the radiopharmaceutical R. The replaced radiopharmaceutical R is accommodated, for example, in the middle part 15b of the transport line. Since the radioactivity amount of the radiopharmaceutical R is measured by the measurement unit 31, the amount of the radiopharmaceutical R to be administered to the subject is calculated according to the radioactivity amount, and the radiopharmaceutical R of the dose to be administered is transferred to the transport line 15. Pushed.

  Thereafter, when the piston of the raw-eating syringe 9 is lowered, the physiological saline Q of the raw-eating pack 7 is sucked into the raw-eating syringe 9 through the raw-eating suction line 13. Thereafter, with the pinch valve 33 opened and the pinch valve 35 closed, the piston of the edible syringe 9 is pushed up. Thus, the radiopharmaceutical R in the transport line 15 is administered to the subject together with the physiological saline Q through the winged needle 11 by the pressure from the saline syringe 9.

  As shown in FIG. 1, when assembling the device 1 as described above, the medicine vial 3, the raw food pack 7, and the waste liquid bottle 10 are installed in the housing 2, and the piping components 91 are provided. Is assembled. Then, the drug vial 3, the raw food pack 7, the waste liquid bottle 10, and the like are appropriately connected by the piping provided in the piping component 91, and a circuit for administering the radiopharmaceutical R to the subject is formed as described above.

The piping component 91 includes the components listed below.
Partial drug line 19 of drug inhalation line 17 excluding sampling needle 17a
Raw food inhalation line 13
Transport line upstream section 15a
Middle section of transportation line 15b
Partial drug syringe 5 that connects branch 23 and waste buffer 28 in partial waste liquid line 27 that connects branch 23 and filter 39 in transport line downstream portion 15c.
Raw Syringe 9
Check valves V11, V13, V15, V17, V19

  The piping component 91 is configured by integrally connecting an extension tube, a syringe, and the like for forming each of the above-described components in advance. The piping parts 91 are appropriately replaced as consumables.

  FIG. 2 shows a state in which the piping component 91 has been removed from the apparatus 1. On the housing 2 side, shielding chambers 43, 45, and 47 (not shown) are provided. Also provided are operating units 51 and 52 connected to the control unit 41, a monitor 71 for displaying the contents of control by the control unit 41, the manufacturing conditions of the radiopharmaceutical, and the like. In addition, the housing 2 of the device 1 may be provided with a tire 72 as a moving unit, and may be movable.

  Here, in the device 1 according to the present embodiment, when the piping component 91 is assembled to the device 1, the operation of the piping component 91 is confirmed by the control unit 41 before performing the operation related to the administration of the radiopharmaceutical. It is characterized by the following. The operation confirmation by the control unit 41 will be described below.

  As described above, the piping component 91 includes a line through which liquid mainly flows, and a syringe for controlling the liquid in the line. Therefore, a check valve or the like provided on the line is also included in the piping component 91. The piping component 91 composed of these components is inspected by a manufacturer of the piping component 91 before shipment. However, when the piping component 91 is shipped, even if the operation of the piping component 91 is normal, its characteristics change with the passage of time, and it is considered that the piping component 91 does not operate properly when assembled to the apparatus 1. Can be Further, after the piping component 91 is assembled into the apparatus 1 and the radiopharmaceutical is started to flow, for example, if a defect of the piping component 91 is found, such as the check valve does not operate properly, the piping component 91 needs to be replaced. Become. There is a possibility that the worker may be exposed to the radiation by replacing the pipe part 91 after starting to flow the radiopharmaceutical into the pipe part 91. As described above, if a defect is confirmed after the start of use of the piping component 91, the burden on the operator including replacement work may increase.

  In addition, there may be a case where the connection portion between the lines of the piping component 91 and the check valve are not properly opened and closed due to a manufacturing error or the like. Malfunctions caused by manufacturing errors are often improved by performing a break-in operation in advance, and therefore, it is preferable to perform the break-in operation before flowing the radiopharmaceutical to the piping component 91.

  Therefore, in the apparatus 1, after the pipe parts 91 are attached, after the parts such as the check valve in the line perform a break-in operation so as to perform a desired operation under the control of the control unit 41, the pipe parts 91 are removed. Check the function of each part (check valve, etc.). At the time of function confirmation, the control unit 41 uses a function as a pressure detection unit or the like of the operation units 51 and 52 of the device 1 by flowing a gas into the pipe part 91 before flowing the radiopharmaceutical or the like. Evaluate whether the internal pressure can be controlled appropriately. In this embodiment, a case will be described in which the gas flowing in the line is air, but the type of gas is not limited.

  FIG. 3 is a flowchart illustrating a procedure of a break-in operation performed by the control of the control unit 41 after the piping component 91 is attached. As shown in FIG. 3, the control unit 41 first opens the valve (S01). The valves to be opened are the pinch valves 33 and 35 attached to the piping component 91. Next, the control unit 41 performs a suction / discharge operation (stroke operation) of the medicine syringe 5 and the saline syringe 9 (S02). The suction / discharge operation of the medicine syringe 5 and the saline syringe 9 by the control unit 41 is performed by operating the operation units 51 and 52 by the control unit 41 and pushing / pulling out the syringe rods 50 and 90. The control unit 41 repeats the suction / discharge operation of the medicine syringe 5 and the saline syringe 9.

  When the number of times of the suction / ejection operation (stroke operation) of the medicine syringe 5 and the saline syringe 9 is equal to or more than the predetermined threshold (S03-YES), the control unit 41 ends the operation. That is, the stroke operation is repeated until the number of times of the suction / discharge operation (stroke operation) of the medicine syringe 5 and the edible syringe 9 reaches a predetermined threshold (S03-NO).

  According to the above procedure, the suction / discharge operation (stroke operation) of the medicine syringe 5 and the edible syringe 9 is repeated a predetermined number of times or more. Therefore, with the movement of the air in the line due to the suction / discharge operation of the syringe, each check valve also has a predetermined restriction on the flow of air (movement in only one direction and movement in the opposite direction). Regulations).

  Note that the suction / discharge operation of the medicine syringe 5 and the raw food syringe 9 does not need to be performed at the same time, and may be performed individually. The running-in operation can be independently performed for each of the medicine syringe 5 and the saline syringe 9. However, in order to increase the amount of air passing through the check valve (or the amount of air regulated by the check valve), it is preferable to simultaneously perform the suction / discharge operation with the medicine syringe 5 and the saline syringe 9. .

  Next, a procedure for confirming the operation of the piping component 91 after performing the break-in operation will be described with reference to FIG.

  First, the control part 41 performs the suction operation of the medicine syringe 5 and the edible syringe 9 in a state where the pinch valves 33 and 35 attached to the pipe parts 91 are closed (S11). By operating the operation units 51 and 52 by the control unit 41, a state in which air stays in the medicine syringe 5 and the saline syringe 9 is formed. This state is an initial state when the operation is checked.

  Next, the control part 41 closes the pinch valves 33 and 35 attached to the piping component 91 (S12). By closing the pinch valves 33 and 35, the air in the piping component 91 is restricted from moving to the outside. In this state, the control unit 41 checks the pressure of the air in the line before the start of the operation check by checking the forces received by the operating units 51 and 52 from the syringe (S13). When the pressure of the air in the line is high (higher than the atmospheric pressure), the operation units 51 and 52 receive a force by which the air in the line pushes the syringe rods 50 and 90. The operation units 51 and 52 measure the magnitude of this force to confirm the pressure of the air in the line.

  Next, the control unit 41 performs a discharge operation of the medicine syringe 5 and the saline syringe 9 by operating the operation units 51 and 52 (S14). By performing the ejection operation, the air stored in the medicine syringe 5 and the edible syringe 9 is introduced into the line. Therefore, it is considered that the pressure in the line increases. In this state, the control unit 41 checks the pressure of the air in the line by checking the forces received by the operating units 51 and 52 from the syringe rods 50 and 90 (S15). Then, it is evaluated whether the detected pressure is within a predetermined range. Specifically, it is evaluated whether the detected pressure is larger than a predetermined threshold. At this time, since the pinch valves 33 and 35 are closed, if the check valves provided in the line are operating properly, the pressure of the air in the line should be increased. On the other hand, when the operation of the check valve is not appropriate, a part of the air in the line is discharged to the outside from the check valve, and it is considered that the pressure of the air in the line does not increase. The threshold value is set on the assumption that the check valve is operating properly. Therefore, when the pressure detected by each of the operation units 51 and 52 is larger than the predetermined threshold value (S15-YES), the control unit 41 can confirm that the check valve is operating properly. Judgment is made and the pinch valves 33 and 35 are opened under the control of the control unit 41 to reduce the pressure of the air in the line (S16), and then the pinch valves 33 and 35 are closed (S17). As described above, when a series of operations is completed after the operation of the check valve is confirmed to be appropriate, the procedure may continue to the procedure related to the administration of the radiopharmaceutical.

  On the other hand, when the pressure detected by each of the operation units 51 and 52 is equal to or less than the predetermined threshold (S15-NO), it is considered that the operation of the check valve is not appropriate. It is determined that the piping component 91 cannot be used, the NG process is executed (S18), and the process ends. The NG process means, for example, that the operation related to the administration of the radiopharmaceutical using the piping component 91 cannot be performed. After the replacement of the piping component 91, the radiopharmaceutical is performed until the break-in operation and the operation check are performed again. Measures such as restricting the operation related to the administration of.

  In addition, the suction / discharge operations of the medicine syringe 5 and the saline syringe 9 in the operation check need not be performed at the same time, but may be performed individually. The suction / discharge operation can be independently performed for each of the medicine syringe 5 and the saline syringe 9. In the case where the suction / discharge operation of the medicine syringe 5 and the saline syringe 9 is individually performed to confirm the operation, if the pressure of the air in the line does not sufficiently increase (S15-NO), an inappropriate operation is performed. The possibility of identifying the valve can be increased. However, since the piping components 91 are basically exchanged integrally, it is not necessary to identify a problematic check valve. In such a case, by simultaneously performing the suction / discharge operations of the medicine syringe 5 and the edible syringe 9 in the operation check, the operation of the entire piping component 91 can be quickly checked.

  As described above, according to the radiopharmaceutical administration device 1 according to the present embodiment, the control unit 41 closes the valve (the pinch valves 33 and 35) on the line of the pipe part 91 and the syringe (the drug syringe 5 or the drug syringe 5). The pressure of the gas in the line at the time of discharging the raw-eating syringe 9) is detected by the operation units 51 and 52 as pressure detection units, and it is determined whether or not the detection result is within a predetermined range. With such a configuration, in the radiopharmaceutical administration device 1, it is possible to check the operation of the pipe part 91, particularly, the check valves provided on the line and the suction line. Therefore, after replacing the piping component 91, it is possible to appropriately detect the defect of the piping component 91.

  In addition, in the radiopharmaceutical administration device 1, when the detection result is not within the predetermined range, the operation of administering the radiopharmaceutical using the pipe part 91 can be prohibited as part of the NG process. In the case of such a configuration, it is possible to prevent the operation of administering the radiopharmaceutical using the piping component 91 determined to be defective.

  Further, when the detection result is not within the predetermined range, the replacement of the piping part 91 is detected, and the line when the syringe is discharged with the valve closed with the replaced piping part 91 is used. When the detection result of the pressure of the gas in the inside falls within a predetermined range, the prohibition of the operation of administering the radiopharmaceutical using the replacement pipe part 91 can be released. In the case of such a configuration, the operation of administering the radiopharmaceutical after confirming that the piping component 91 determined to be defective is replaced with a new piping component 91 and that the replaced piping component 91 is not defective. Can be restarted, so that the operation of administering the radiopharmaceutical using the piping component 91 determined to be defective can be more reliably prevented.

  In addition, in the radiopharmaceutical administration device 1, by performing a predetermined number of times of suction and discharge of the syringe with the valve opened before confirming the operation starting from the discharge of the syringe with the valve closed, the suction of the syringe is performed. In addition, a break-in operation of the piping component can be performed by utilizing the movement of the gas in the line by the discharge. For this reason, it is possible to eliminate an operation defect caused by a manufacturing error or the like of each part of the piping component 91, and prevent an operation defect caused by a manufacturing error or the like from being detected as a defect of the piping component 91.

  The present invention can be implemented in various forms including various modifications and improvements based on the knowledge of those skilled in the art, including the above-described embodiment. Further, it is also possible to configure a modification of the embodiment using the technical matters described in the above-described embodiment. The configurations of the embodiments may be appropriately combined and used.

  For example, the number and arrangement of the check valves provided on the piping component 91 of the radiopharmaceutical administration device 1 can be changed as appropriate. In addition, the configuration of the line, the syringe, and the suction line in the piping component 91 can be appropriately changed.

  Further, the pressure detector is not limited to a mechanism that detects a force received by the syringe rods 50 and 90. The configuration is not particularly limited as long as the internal pressure can be detected in a state where gas flows into the line of the pipe component 91.

  DESCRIPTION OF SYMBOLS 1 ... Radiopharmaceutical administration device, 5 ... Drug syringe, 9 ... Saline syringe (transportation liquid syringe), 11 ... Wing needle (administration part), 13 ... Saline inhalation line, 15 ... Transport line, 17 ... Drug inhalation line, 19 ... Pharmaceutical line, 91 ... Piping parts, Q ... Physiological saline (transport liquid), R ... Radioactive medicine, V11, V13, V15, V17, V19 ... Check valve.

Claims (4)

A syringe capable of inhaling and discharging a radiopharmaceutical or a transport liquid for transporting the radiopharmaceutical, a suction line for supplying the radiopharmaceutical or the transport liquid to the syringe, and a connectable destination of the radiopharmaceutical A line connecting the syringe to the appropriate administration section, and a plurality of check valves provided on the suction line and on the line;
On the line of the piping component, a valve that performs an opening and closing operation of the line,
A pressure detector for detecting the pressure in the line,
Control unit for controlling the opening and closing of the valve, suction and discharge of the syringe,
Has,
The control unit detects the pressure of the gas in the line when the syringe is discharged in a state where the valve is closed by the pressure detection unit, and determines whether a detection result is within a predetermined range. Radiopharmaceutical administration device to determine.   The radiopharmaceutical administration device according to claim 1, wherein the control unit prohibits the administration operation of the radiopharmaceutical using the piping component when the detection result is not within a predetermined range.   The control unit, when the detection result is not within a predetermined range, detects replacement of the pipe part, and discharges the syringe with the valve closed using the pipe part after replacement. The pressure of the gas in the line at the time of performing is detected by the pressure detection unit, and when the detection result is within a predetermined range, the prohibition of the operation of administering the radiopharmaceutical using the piping component is released. The radiopharmaceutical administration device according to claim 1 or 2, wherein   The control unit performs suction and discharge of the syringe a predetermined number of times with the valve opened before discharging the syringe with the valve closed, according to any one of claims 1 to 3. A radiopharmaceutical administration device according to claim 1.

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