JP2008092999A - Auxiliary appliance of manual radioactive liquid dispensing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary appliance of a manual radioactive liquid dispensing apparatus capable of extremely easily performing various handling in a syringe shield and suppressing the exposure dose of a medical worker low by placing the syringe shield to which a syringe for a PET medicament is attached on a desk or the like in an erected state. <P>SOLUTION: The auxiliary appliance is for setting the syringe for the PET medicament in the state of keeping a needle attached while keeping it set in the syringe shield and comprises a fitting recessed part formed at one end of the auxiliary appliance in order to fit a part of the syringe shield and a circular insertion part formed at the center of the fitting recessed part in order to insert the needle part of the syringe for the PET medicament set to the syringe shield. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to the in vivo administration of isotope-labeled liquid PET drugs such as 18F-FDG (2-deoxy-2-fluoro-D-glucose) used in positron emission tomography (hereinafter referred to as PET). Therefore, it is related with the auxiliary | assistant instrument of a manual type radioactive liquid administration apparatus used when performing a diagnosis and a test | inspection.

  Conventionally, a liquid PET drug such as 18F-FDG (2-deoxy-2-fluoro-D-glucose) labeled with a positron emitting isotope is administered into the body, and the distribution in the body is visualized with a special camera or the like. For example, a diagnostic method for cancer or the like is performed by PET, also called positron CT for performing diagnosis.

  18F-FDG (2-deoxy-2-fluoro-D-glucose) used in this PET is one in which one of the hydroxyl groups of glucose is substituted with 18-F, and the half-life, which is the life of the drug, is about 110 minutes. In addition, the energy of γ rays emitted by the pair annihilation between the positron emitted from the drug and the negative electron in the body is high, and the transmission capability of this energy is also high.

  Moreover, there is a limit to the radiation dose of PET drugs that can be obtained by delivery delivery, and the exposure dose is known to have little effect on the human body.

  When such a PET drug is administered to a subject (intravenous injection), it is important to ensure that it can be administered to the subject within a short period of time. This has led to a reduction in radiation exposure.

  For this reason, in recent PET inspection facilities, introduction of an automatic administration device for PET drugs has been promoted in consideration of exposure of medical workers.

  However, in addition to being very expensive, such an automatic administration device must always be administered manually if the device breaks down. Demand still exists.

  For this reason, improvement of the operation of the manual administration device is an issue, and it will continue to be widely used as a backup for the automatic administration device.

  Next, a procedure for administering a PET drug by a conventional manual radioactive liquid administration device (for example, UG-150P) will be described.

  a. Prepare a manual radioactive liquid administration device and a physiological saline syringe for washing out PET drugs.

  b. Prepare a radiation dose measuring device (Curie meter).

  c. A syringe for PET drug is set on a syringe shield (for example, UG-150W), and the PET drug is sucked from the vial.

  d. The PET drug syringe set on the syringe shield is placed in front of the radiation dose measuring device.

  e. Unlock the syringe shield and remove the PET drug syringe from the syringe shield.

  f. The radiation dose of the PET drug sucked into the PET drug syringe is measured with a radiation dose measuring device.

  g. After the measurement, with the needle attached to the syringe for PET drug, this is put into the syringe shield.

  h. While holding the syringe shield with one hand, put the syringe in the unlocked state.

  i. Lock the syringe shield and complete the PET drug syringe set.

  j. A syringe shield is set on the manual radioactive liquid administration device, and is connected to a physiological saline syringe through a three-way cock.

h. A subject is administered a PET drug and saline for washing out. At this time, hold firmly with one hand so that the three-way stopcock does not come off due to pressure.
nothing special

  However, in the above-described procedure for administering the PET drug, a considerable amount of time was spent measuring the radiation dose after the PET drug was aspirated from the vial into the syringe.

  That is, a needle is attached to a syringe for PET drug, and is shielded by a syringe shield having a weight of 1 kg made of tungsten or the like, and the PET drug is sucked from the vial. When measuring the radiation dose after this suction, For example, it took a considerable amount of time to remove the syringe containing the PET drug laterally from a syringe shield placed so as to lie on a desk.

  Moreover, after measuring the radiation dose, it was very troublesome to put the syringe for PET drug from the lateral direction into the syringe shield placed so as to lie on the desk.

  Such an adverse effect can be solved, for example, by holding the syringe shield in the left hand and holding the PET drug syringe in the right hand and setting the PET drug syringe in the syringe shield, but the exposure dose of the medical worker increases.

  Furthermore, a medical worker was also exposed when carrying and holding a syringe shield to which a PET drug syringe was attached and setting the syringe shield on a manual radioactive liquid administration device.

  Therefore, the present invention was created in view of the existing circumstances as described above. By placing the syringe shield on which the PET drug syringe is mounted on a desk or the like, the syringe shield It is an object of the present invention to provide an auxiliary device for a manual radioactive liquid administration device that can be handled in various ways and can keep the exposure dose of a medical worker low.

  The present invention is an auxiliary device for standing a PET drug syringe with a needle attached while it is set on a syringe shield, and is formed at one end of the auxiliary device to fit a part of the syringe shield. And the circular insertion portion formed at the center of the fitting recess for inserting the needle portion of the syringe for PET drug set in the syringe shield. Settled.

  Moreover, the auxiliary | assistant instrument solved the problem mentioned above similarly by being formed in the substantially rectangular cylinder shape so that it can mount stably in a predetermined place.

  Furthermore, the auxiliary device is formed of a foamed synthetic resin material or a plastic material, thereby solving the above-described problem.

  Moreover, the problem mentioned above was solved by arrange | positioning the shield member which shields the radiation | emission of the PET chemical | medical agent generated from the inserted needle part in the circular insertion part of an auxiliary instrument.

  The present invention is an auxiliary device for standing a PET drug syringe with a needle attached while it is set on a syringe shield, and is formed at one end of the auxiliary device to fit a part of the syringe shield. And a circular insertion portion formed at the center of the fitting recess for inserting the needle portion of the PET drug syringe set in the syringe shield. It becomes possible to put on the desk etc. in the state which stood the syringe shield which has attached, and the various handling in a syringe shield can be performed very easily.

  That is, since the syringe shield to which the PET drug syringe is attached is placed on a desk or the like in a standing state, it is possible to easily remove the PET drug syringe with the needle attached from the syringe shield in that state. it can.

  Therefore, the PET drug syringe can be easily set in the radiation dose measuring device, and the radiation dose can be measured quickly. As a result, the medical worker's exposure can be kept low.

  In addition, since the syringe shield can be carried through the auxiliary device without directly holding the syringe shield by hand, the medical worker's exposure dose can be kept low in this respect as well.

  Furthermore, since the state where the syringe shield is standing is maintained, the syringe shield can be easily attached to the syringe for PET drug. Therefore, after the PET drug is aspirated from the vial, the PET drug syringe can be easily attached to the syringe shield.

  Moreover, when the measurement of the radiation dose is finished, the syringe for PET drug can be removed from the radiation dose measuring device and can be easily attached to the syringe shield.

  That is, in the past, since the syringe shield was placed on the desk so that the syringe containing the PET drug had to be taken out in the lateral direction, it took a long time for the operation. . Moreover, it was very troublesome to put the syringe for PET drug from the side into the syringe shield placed so as to lie on the desk.

  The present invention makes it possible to place a syringe shield, to which a syringe for PET drug is attached, on a desk or the like in a standing state in order to eliminate such an adverse effect.

  In addition, since the auxiliary device is formed in a substantially rectangular tube shape, the auxiliary device can be placed in a stable state in a predetermined place.

  Furthermore, since the auxiliary device is made of a foamed synthetic resin material or a plastic material, the weight of the auxiliary device can be reduced.

  Further, since the shield member is arranged in the circular insertion portion of the auxiliary instrument, it is possible to shield the radiation of the PET drug generated from the inserted needle portion.

  As described above, according to the present invention, various treatments in the syringe shield can be performed extremely easily by placing the syringe shield on which the syringe for PET drug is attached on a desk or the like, The exposure dose can be kept low.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  The auxiliary instrument 1 of the manual radioactive liquid administration device T according to the present invention is formed using a material such as foam synthetic resin or plastic. Moreover, as shown in FIG. 1, the auxiliary instrument 1 is formed in a substantially rectangular cylindrical shape so that it can be stably placed in a predetermined place.

  As shown in FIGS. 3 and 4, the auxiliary device 1 sets the PET drug syringe Q with the needle P attached to the syringe shield S (for example, UG-150W) and keeps the syringe in this state. The shield S itself can be stood.

  As shown in FIG. 7, the syringe shield S is set on the pedestal T2 of the manual radioactive liquid dosing device T, and is connected to the physiological saline syringe L via the three-way stopcock R. Water is administered to the subject.

  At this time, by setting the syringe shield S on which the PET drug syringe Q is mounted on the pedestal T2 of the manual radioactive liquid dosing device T, the piston side of the PET drug syringe Q is connected to the manual radioactive liquid dosing device T. It is arrange | positioned at the front-end | tip of pressing operation stick | rod T1, and a piston is pushed in via pressing operation of this pressing operation stick | rod T1.

As shown in FIG. 1, the auxiliary instrument 1 is formed with a substantially rectangular fitting recess 2 having a predetermined depth for fitting a part of the syringe shield S at one end thereof.
In addition, a bottomed circular insertion portion 3 is formed in the center of the fitting recess 2 in order to insert the needle P portion of the PET drug syringe Q set in the syringe shield S.

  As shown in FIG. 2, a slightly tapered pipe-shaped shield member 4 is inserted into the circular insertion portion 3 in order to shield the radiation of the PET drug generated from the inserted needle P portion. Yes.

  Moreover, as shown in FIG. 3, the syringe shield S (for example, UG-150W) is formed with an insertion hole S1 into which the cylinder portion of the PET drug syringe Q is inserted.

  When the PET drug syringe Q is set, as shown in FIG. 4, the flange portion F at one end of the cylinder is locked to the opening edge of the fitting insertion hole S1. Further, the flange portion F is locked by suspending a rotary lock lever S2 disposed in the vicinity of the opening edge portion on the hook portion S3. In this state, only the needle P portion of the PET drug syringe Q is exposed to the outside from the opposite side of the insertion hole S1.

  Therefore, when a part of the syringe shield S is fitted into the fitting recess 2 of the auxiliary instrument 1, only the needle P portion is inserted into the circular insertion portion 3 of the auxiliary instrument 1. Thus, as shown in FIG. 4, the syringe Q for PET medicine is stood against a predetermined place together with the syringe shield S with the needle P attached.

  Further, when the PET drug is sucked from the vial V, as shown in FIG. 5, only the needle P is inserted into the vial V and sucked while the syringe Q for PET drug is set on the syringe shield S. To do.

  Next, an example of use of the best mode of the present invention configured as described above will be described.

  First, as shown in FIGS. 3 and 4, the syringe shield S is placed on the auxiliary instrument 1 with the needle P attached to the PET drug syringe Q set on the syringe shield S.

  At this time, a part of the syringe shield S is fitted into the fitting recess 2 of the auxiliary instrument 1, and only the needle P portion is inserted into the circular insertion portion 3 of the auxiliary instrument 1. The flange portion F of the PET drug syringe Q is fixed by the lock lever S2 of the syringe shield S.

  In this state, the auxiliary device 1 is held in the hand and moved to a predetermined location.

  Then, as shown in FIG. 5, the syringe shield S is removed from the auxiliary instrument 1, and the PET drug is aspirated from the vial V as shown in FIG. 5.

  After the PET drug is aspirated, as shown in FIG. 4, the syringe shield S is again placed on the auxiliary instrument 1, and the auxiliary instrument 1 is held in the hand and moved to a position close to the radiation dose measuring apparatus M.

  Then, the lock lever S2 of the syringe shield S is removed while the auxiliary instrument 1 is set, and the PET drug syringe Q is removed from the syringe shield S.

  Next, as shown in FIG. 6, the PET drug syringe Q is set in the radiation dose measuring device M, and the radiation dose of the PET drug sucked into the PET drug syringe Q is measured.

  After the measurement, with the needle P attached to the syringe Q for PET drug, it is put into the syringe shield S set in the auxiliary instrument 1 and fixed with the lock lever S2.

  In this state, the auxiliary instrument 1 is held by hand and moved to a position close to the manual radioactive liquid administration device T.

  Next, the syringe shield S is removed from the auxiliary instrument 1, and the syringe shield S is set on the base T2 of the manual radioactive liquid administration device T as shown in FIG. At this time, the physiological saline syringe L is connected via the three-way stopcock R.

  In this state, the PET drug and physiological saline are administered to the subject through the injection line R2 by a 90-degree rotation operation in any direction of the cock R1 of the three-way stopcock R.

  At this time, by rotating the cock R1 so that the PET drug syringe Q communicates with the charging line R2, the PET drug syringe is operated by pressing the pressing operation rod T1 of the manual radioactive liquid dosing device T. A PET drug is administered to the subject from Q through the input line R2.

  Further, by rotating the cock R1 so that the physiological saline syringe L is in communication with the charging line R2, the physiological saline is administered from the physiological saline syringe L through the charging line R2 to the subject. The

  When administration to the subject is completed, the syringe shield S is removed from the manual radioactive liquid administration device T, the syringe shield S is placed on the auxiliary device 1 again, moved to a predetermined location, and the entire operation is completed. To do.

  The auxiliary device 1 according to the present invention can be widely used as an auxiliary device 1 for various liquid administration devices other than a manual radioactive liquid administration device used for diagnosis and examination.

It is a perspective view which shows the whole structure of the auxiliary tool provided with the fitting recessed part and the circular insertion part in one end. It is a disassembled perspective view which shows the state which attaches a shield member to the circular insertion part of an auxiliary instrument. It is a perspective view which shows the state which sets the syringe shield equipped with the syringe for PET chemical | medical agents to the fitting recessed part of an auxiliary tool. It is a perspective view which shows the state which set the syringe shield with which the syringe for PET chemical | medical agents was mounted to the fitting recessed part of an auxiliary | assistant instrument. It is a perspective view which shows the state which is aspirating PET chemical | medical agent from a vial in the state which has set the syringe for PET chemical | medical agents to a syringe shield. It is a perspective view which shows the state which removed the syringe for PET chemical | medical agents from the syringe shield, and was set to the radiation dose measuring apparatus. It is a perspective view which shows the state which set the syringe shield to the manual type radioactive liquid administration apparatus, and connected with the syringe for physiological saline through a three-way cock.

Explanation of symbols

P ... Needle Q ... PET drug syringe F ... Flange part S ... Syringe shield S1 ... Insertion hole S2 ... Lock lever S3 ... Hook part V ... Vial M ... Radiation dose measuring device T ... Manual radioactive liquid administration device T1 ... Pressing Operation rod T2 ... Base R ... Three-way stopcock R1 ... Cock R2 ... Input line L ... Saline syringe 1 ... Auxiliary device 2 ... Fitting recess 3 ... Circular insertion part 4 ... Shield member

Claims (4)

  An auxiliary device for standing a PET drug syringe with a needle attached while it is set on a syringe shield, and a fitting recess formed at one end of the auxiliary device for fitting a part of the syringe shield And a circular insertion part formed in the center of the fitting recess for inserting the needle part of the syringe for PET drug set on the syringe shield. Auxiliary equipment.   The auxiliary device for a manual radioactive liquid administration device according to claim 1, wherein the auxiliary device is formed in a substantially rectangular tube shape so that the auxiliary device can be stably placed in a predetermined place.   The auxiliary instrument of the manual radioactive liquid administration device according to claim 1 or 2, wherein the auxiliary instrument is made of a foamed synthetic resin or a plastic material.   The auxiliary device for a manual radioactive liquid administration device according to any one of claims 1 to 3, wherein a shield member for shielding the radiation of the PET drug generated from the inserted needle portion is arranged in the circular insertion portion of the auxiliary device. .

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