Collimated point visual open source container

Abstract

The application discloses a collimated point visible open source container, which comprises a source carrier, a radioactive drug adsorbent, an LED lamp, a control circuit, an inner cavity arranged in the source carrier, a collimated hole arranged at the bottom of the source carrier and communicated with the inner cavity and the outside, and the radioactive drug adsorbent is arranged in the inner cavity, and the LED lamp is arranged in the collimated hole and is turned on or turned off through the control circuit. The application has the advantages of convenient adjustment of the collimated source irradiation position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of open source container for SPECT related test, and particularly relates to a collimated point visual open source container. BACKGROUND

[0002] SPECT is a technology for tomography of radioactive drugs (such as 99mTc) emitting only a single gamma photon per decay. Within a certain field of view, the corresponding radioactive drug in the human body can be imaged to show the location of the radioactive drug and further reflect the relevant pathological information of the human body.

[0003] In the research and development, production and hospital use process, radioactive drugs are used for corresponding performance testing and related experiments. The radioactive drugs used usually include open sources such as 99mTc and 131I. These open sources are used to irradiate SPECT, and then SPECT compares the detected location of the open source with the actual irradiation position of the open source to test the experiment. Since SPECT needs to be rotated from various angles for testing, the radioactive source will also irradiate SPECT from different angles.

[0004] In order to accurately obtain the location of the open source, the open source usually needs to be collimated, and the collimated open source is then used to irradiate SPECT. In order to be able to irradiate the SPECT probe at different positions, the open source will also be moved to different positions for testing.

[0005] In the prior art, people determine the irradiation position of the gamma ray on SPECT by "feeling" or by judging the relative position of the collimating hole and SPECT. Since the gamma ray cannot be seen by the naked eye, it is not easy for people to determine the specific position of the collimated gamma ray.

[0006] However, the existing technology has the problem that the specific irradiation position of the collimated gamma ray is not accurate by observing the relative position of the collimating hole and SPECT with the naked eye, and there will be a certain deviation. When the open source is close to the SPECT detector, the deviation will be small, but as the distance between the open source and SPECT increases, the deviation will increase. Especially when the collimating hole and the SPECT detector plane are not perpendicular, but have a certain inclination angle, the deviation will become very large. This leads to unreliable SPECT related test data. At the same time, when the SPECT is rotated, the radioactive source will also move, and when the open source moves, the specific position of the irradiation SPECT needs to be adjusted and judged again. At the same time, since the gamma ray cannot be seen by the naked eye, the staff cannot accurately identify the irradiation area, and there is a risk of radiation exposure.

[0007] The present application discloses a collimation point visual open source container which is used for adjusting the irradiation position of a collimation source. SUMMARY

[0008] The present application discloses a collimation point visual open source container which is used for adjusting the irradiation position of a collimation source.

[0009] To solve the above technical problems, the present application adopts the following technical scheme:

[0010] A collimation point visual open source container, comprising a source carrier, a radioactive drug adsorbent, an LED lamp, a control circuit, wherein the source carrier is internally provided with an inner cavity, the bottom of the source carrier is provided with a collimation hole which is in communication with the inner cavity and the outside, the radioactive drug adsorbent is located in the inner cavity, the LED lamp is located in the collimation hole and is turned on or off through the control circuit, and the source carrier is made of a material which has a gamma ray shielding capability.

[0011] As a further improvement of the above technical scheme:

[0012] The control circuit comprises a circuit board, a switch and a power supply which are connected in series through wires, and the LED lamp is located on the circuit board.

[0013] The circuit board is located in the inner cavity, and a guide groove for the wires is formed in the side wall of the inner cavity, and the switch is located on the outer side wall of the source carrier.

[0014] The source carrier comprises a container body and a container cover, the container cover is arranged on the container body, the container body is provided with a power supply mounting groove which is in communication with the guide groove at the end close to the container cover, and the power supply is located in the power supply mounting groove.

[0015] The power supply is a button cell.

[0016] The collimation point visual open source container further comprises a sealed bottle which is located in the inner cavity and is used for storing the radioactive drug adsorbent.

[0017] The sealed bottle is made of a plastic material or a material which does not block gamma rays.

[0018] The radioactive drug adsorbent is a cotton product.

[0019] The circuit board is made of a material which does not have a gamma ray shielding capability.

[0020] The working principle of the present application is:

[0021] Although the gamma rays used by the open source container cannot be seen by naked eyes, the propagation of gamma rays in the air can be regarded as straight-line propagation. When the radioactive source decays, it will produce rays in all directions, just like a light bulb that will produce light in all directions. The radioactive source is inside the source carrier, and the source carrier is a material with gamma ray shielding capability, which will shield the rays. When the source carrier opens a collimation hole, the rays passing through the collimation hole are approximately in the direction of the hole and are externally irradiated. An LED lamp is placed at the position of the hole, and the propagation path of the light generated is nearly consistent with the propagation path of the rays. The position irradiated by the lamp can be used to indicate the irradiation position of the gamma rays, and the preparation of the visual open source container is realized.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The present application solves the problem of invisible gamma rays. Through the irradiation position of the LED lamp, the irradiation position of the open source can be intuitively reflected, which is convenient for accurately adjusting the irradiation position of the collimation source to enable the SPECT probe to receive gamma rays at the accurate position, which is of great significance to ensure the performance of the SPECT. At the same time, the collimation source is convenient to move with the rotation of the SPECT probe, and the collimation point can be seen at any time. Since the irradiation position can be directly seen by naked eyes, unnecessary irradiation hazards to the workers can be effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a side view of the collimation point visual open source container of the present application.

[0025] Fig. 2 is an exploded view of the components of the collimation point visual open source container of the present application.

[0026] Fig. 3 is a bottom view of the collimation point visual open source container of the present application.

[0027] Fig. 4 is a side view of the switch button of the collimation point visual open source container of the present application.

[0028] The various reference signs in the drawings represent: 1, source carrier; 11, container body; 12, container cover; 121, external thread; 13, collimation hole; 14, inner cavity; 141, internal thread; 15, guide groove; 16, power supply mounting groove; 2, LED lamp; 3, circuit board; 4, sealed bottle; 41, bottle body; 42, bottle cap; 5, radioactive drug adsorbent; 7, wire; 8, switch; 9, power supply. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0030] Example 1:

[0031] like Figs. 1 to 4 As shown, the collimation point visible open source container of this embodiment includes a source carrier 1, a radiopharmaceutical adsorbent 5, an LED light 2, and a control circuit. The source carrier 1 has an inner cavity 14, and the bottom of the source carrier 1 has a collimation hole 13 that communicates with the inner cavity 14 and the outside. The radiopharmaceutical adsorbent 5 is located in the inner cavity 14, and the LED light 2 is located in the collimation hole 13 and is turned on or off by the control circuit.

[0032] The control circuit includes a circuit board 3, a switch 8, and a power supply 9 connected in series via wires 7. The LED 2 is located on the circuit board 3. In this embodiment, the circuit board 3, switch 8, and power supply 9 are soldered together via wires 7, and the LED 2 is soldered onto the circuit board 3.

[0033] The circuit board 3 is located inside the inner cavity 14. A guide groove 15 for the wire 7 to pass through is provided on the side wall of the inner cavity 14. The switch 8 is located on the outer side wall of the source carrier 1.

[0034] The source carrier 1 includes a container body 11 and a container cover 12. The container cover 12 is placed on the container body 11. The container body 11 has a power mounting slot 16 connected to the guide groove 15 at one end near the container cover 12. The power supply 9 is located in the power mounting slot 16.

[0035] In this embodiment, since the power supply mounting slot 16 is located on the side of the container body 11 near the container cover 12, and there is a certain distance between it and the installation position of the LED light 2, a guide slot 15 is required. In other embodiments, the power supply mounting slot 16 and the switch 8 can be located on the side near the installation position of the LED light 2, and the power supply mounting slot 16 is directly connected to the inner cavity 14. In this case, a guide slot 15 is not required.

[0036] The container lid 12 has an external thread 121, and the container body 11 has an internal thread 141. The external thread 121 and the internal thread 141 are screwed together. The size and material thickness of the container body 11 and the container lid 12 are designed according to the type, activity and shielding requirements of the radioactive source.

[0037] The power supply 9 is a button battery, and its size does not exceed the size of the power supply mounting slot 16. The switch 8 is a type of micro switch button, capable of turning current on and off, and its size does not exceed the size of the power supply mounting slot 16. The wire 7 is a type of insulated wire. The LED 2 is a type of LED that emits visible laser light, and its size does not exceed the size of the collimation hole 13.

[0038] The collimated point visual open source container further comprises a sealed bottle 4, which is located in the inner cavity 14 and used for storing radioactive medicine adsorbent 5. The sealed bottle 4 prevents the radioactive source from contaminating the inside of the source carrier 1, and the radioactive medicine adsorbent 5 is generally wet after adsorbing the radioactive source, so a sealed bottle 4 container is used to store the radioactive source, which is convenient for replacing the radioactive source.

[0039] The sealed bottle 4 is made of plastic material or a material that has little blocking effect on gamma rays. The sealed bottle 4 comprises a bottle body 41 and a bottle cap 42, and the bottle cap 42 is threadedly connected to the bottle body 41.

[0040] The radioactive medicine adsorbent 5 is a cotton product. In this embodiment, it is cotton, cotton thread and other materials with strong water absorption capacity. Because the radioactive medicine is generally an aqueous solution, the water absorption of the radioactive medicine adsorbent 5 can adsorb the radioactive medicine.

[0041] The source carrier 1 is made of a material with gamma ray shielding capability. In some embodiments, it can be a lead alloy or a tungsten alloy. In this embodiment, the source carrier 1 is a lead tank.

[0042] The circuit board 3 is made of a material without gamma ray shielding capability. The thickness of the circuit board 3 is not more than 1 mm, and the circuit board 3 contains a printed circuit and can connect the LED lamp 2 and the wire 7.

[0043] The collimating hole 13 is designed according to the type, activity, shielding requirement and collimation requirement of the open source.

[0044] Although the present application has been disclosed with reference to the preferred embodiments above, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solutions disclosed above, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the scope of the technical solutions of the present application, shall fall within the scope of protection of the technical solutions of the present application.

Claims

1. A collimation point visible open source container, characterized in that: The device includes a carrier (1), a radiopharmaceutical adsorbent (5), an LED lamp (2), and a control circuit. The carrier (1) has an inner cavity (14) and a collimation hole (13) at the bottom of the carrier (1) that communicates with the inner cavity (14) and the outside. The radiopharmaceutical adsorbent (5) is located in the inner cavity (14), and the LED lamp (2) is located in the collimation hole (13) and is turned on or off by the control circuit. The carrier (1) is made of a material with γ-ray shielding capability.

2. The collimation point visible open source container according to claim 1, characterized in that: The control circuit includes a circuit board (3), a switch (8) and a power supply (9) connected in series by wires (7), and the LED (2) is located on the circuit board (3).

3. The collimation point visible open source container according to claim 2, characterized in that: The circuit board (3) is located inside the inner cavity (14), and a guide groove (15) for the wire (7) to pass through is provided on the side wall of the inner cavity (14). The switch (8) is located on the outer side wall of the source carrier (1).

4. The collimation point visible open source container according to claim 3, characterized in that: The carrier (1) includes a container body (11) and a container cover (12). The container cover (12) is placed on the container body (11). The container body (11) has a power installation slot (16) connected to the guide slot (15) at one end near the container cover (12). The power source (9) is located in the power installation slot (16).

5. The collimation point visible open source container according to claim 2, characterized in that: The power source (9) is a button battery.

6. The collimation point visible open source container according to any one of claims 1 to 5, characterized in that: The collimation point visible open source container also includes a sealed bottle (4), which is located inside the inner cavity (14) and is used to store radiopharmaceutical adsorbents (5).

7. The collimation point visible open source container according to claim 6, characterized in that: The sealed bottle (4) is made of a material that does not block γ-rays.

8. The collimation point visible open source container according to any one of claims 1 to 5, characterized in that: The radiopharmaceutical adsorbent (5) is made of cotton.

9. The collimation point visible open source container according to any one of claims 2 to 5, characterized in that: The circuit board (3) is made of a material that does not have gamma-ray shielding capability.

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