CN211695209U

CN211695209U - Radiopharmaceutical split charging hot chamber

Info

Publication number: CN211695209U
Application number: CN202020048959.3U
Authority: CN
Inventors: 王文东; 刘爱娣; 杨建超; 康金良; 王国成; 朱露娟; 张磊; 郭诗麒
Original assignee: Hake Medical Beijing Co ltd
Current assignee: Hake Medical Beijing Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-16
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a radiopharmaceutical partial shipment hotroom, include the outer box and be located the inner bag of outer box inside, be provided with the guard gate on the preceding lateral wall of outer box respectively, advance medicine drawer and go out the medicine drawer, the guard gate is corresponding with the inner bag, it all is located the below of inner bag with going out the medicine drawer to advance the medicine drawer, the operating handle hole has been seted up on the guard gate, be provided with the inside that stretches into the inner bag and the operating handle corresponding gloves in hole on the preceding lateral wall of inner bag, be provided with respectively on the diapire of inner bag and advance the medicine inner door and go out the medicine inner door, it is corresponding with advancing the medicine drawer to advance the medicine inner door, it is corresponding with going out the medicine drawer to go out the medicine inner door, be provided with into air exhaust system on the outer box. The air cleanliness of the interior can reach hundreds, the quality of nuclide medicines is not affected by the damage of the interior purification environment in the normal operation process, the structural design is reasonable, the operation is safe and convenient, and the functions meet the industrial specifications.

Description

Radiopharmaceutical split charging hot chamber

Technical Field

The utility model relates to a radiopharmaceutical partial shipment technical field particularly, relates to a radiopharmaceutical partial shipment hot chamber.

Background

With the rapid development of nuclear medicine, equipment for radionuclide drug production and related operations is widely used, and a hot chamber is one of them. The hot chamber is high radiation protection equipment which provides effective protection places for corresponding operation or core equipment during production and subpackage of the radionuclide medicine. How the hot chamber makes each item operation requirement of equipment accord with the trade standard under the prerequisite of guaranteeing protection safety, can make personnel's operation use more reasonable more convenient simultaneously is the direction of equipment research development.

The radioactive drug subpackaging hot chamber (simply called hot chamber) is widely applied to large hospital nuclear medicine, radioactive drug production mechanisms and radioactive drug research mechanisms, is used for subpackaging 18F-FDG and other radioactive drugs, and can enable medical workers to be far away from radioactive sources in the drug subpackaging process and reduce the radiation received by the medical workers.

The existing radiopharmaceutical split charging hot chamber has the following defects:

1) the structural design is unreasonable, and the operation is inconvenient;

2) the air intake and exhaust system is basically designed in a vertical laminar flow structure, and a fan is adopted to control the flow direction of air in an inner cavity (namely an inner container) of the equipment, about 70 percent of air flows back into the inner cavity, and 30 percent of air is discharged outside. The structure is controlled by a single fan, so that the ventilation thoroughness of gas in the cavity and the stability of the internal pressure state are difficult to ensure;

3) the radiation protection effect is poor, and the safety of a user is difficult to effectively ensure;

4) the radiation monitoring and alarming function is not available, and the radiation overproof alarming function can not be provided for the user well.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem in the correlation technique, the utility model provides a radiopharmaceutical partial shipment hot chamber, structural design is reasonable, and the operation is safe convenient, and the function accords with the trade standard, and it adopts double fan to control the gas flow direction to guarantee the stability of the inner bag inside gas state of hot chamber, make the internal pressure situation and the gaseous number of taking a breath accord with the relevant standard requirement, the radiation protection is effectual, can effectively guarantee user's safety, has radiation monitoring and alarming function.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a radiopharmaceutical partial shipment hot chamber, includes the outer box and is located the inner bag of outer box inside, be provided with the guard gate on the preceding lateral wall of outer box respectively, advance the medicine drawer and go out the medicine drawer, the guard gate with the inner bag is corresponding, advance the medicine drawer with it all is located to go out the medicine drawer the below of inner bag, the operation hand hole has been seted up on the guard gate, be provided with on the preceding lateral wall of inner bag and stretch into the inside of inner bag and with the corresponding operating glove in operation hand hole, be provided with respectively on the diapire of inner bag and advance the medicine inner door and go out the medicine inner door, advance the medicine inner door with it is corresponding to advance the medicine drawer, go out the medicine inner door with it is corresponding to go out the medicine drawer, be provided with into the air exhaust system on the outer box.

Further, advance exhaust system and include air-supply line and exhaust pipe, the air-supply line runs through downwards communicate behind the roof of outer box the inside of inner bag, the intercommunication is provided with at least one vent on the inner bag, the vent is located the below of air-supply line, the inside of outer box be provided with the corresponding passageway of airing exhaust of vent, the exhaust pipe intercommunication the passageway of airing exhaust, be provided with air intake fan on the air-supply line, be provided with the fan of airing exhaust on the exhaust pipe.

Further, still be provided with primary filter and HEPA high efficiency filter on the air-supply line, primary filter is located the outside of outer box, air intake fan with HEPA high efficiency filter all is located the inside of outer box, air intake fan is located primary filter with between the HEPA high efficiency filter, still be provided with activated carbon filter on the exhaust pipe, activated carbon filter is located the inside of outer box, the fan of airing exhaust is located the outside of outer box.

Furthermore, gaps are arranged between the bottom wall of the outer box body and the bottom wall of the inner container and between the rear side wall of the outer box body and the rear side wall of the inner container, and the two gaps are communicated with each other to form the air exhaust channel.

Furthermore, valves are arranged on the air inlet pipe and the air exhaust pipe.

Further, a radiation detector is arranged in the inner container and connected with a PLC (programmable logic controller), the PLC is respectively connected with an audible and visual alarm and a protective door electric lock, and the protective door electric lock corresponds to the protective door.

Furthermore, the outside of outer box is provided with lead shielding shell, lead shielding shell is last to be seted up a plurality of respectively with the guard gate, advance the medicine drawer with go out the window of medicine drawer one-to-one.

Further, be provided with two drawer shells in the outer box body, the preceding lateral wall of drawer shell has seted up and has supplied advance the medicine drawer or go out the first opening of medicine drawer business turn over, the second opening has been seted up to the roof of drawer shell, second opening sealing connection advance the medicine inner door or go out the medicine inner door, advance on the medicine drawer, go out on the medicine drawer, advance on the medicine inner door and go out and all be provided with inflatable seal on the medicine inner door.

Furthermore, the drawer shell is communicated with the inner container through an air inlet pipe, the drawer shell is communicated with the exhaust channel through an exhaust pipe, and valves are arranged on the air inlet pipe and the exhaust pipe.

Furthermore, the medicine inlet inner door and the medicine outlet inner door respectively comprise a door body and a door frame, the door frame is fixedly connected with the inner container, the door frame is hinged with the door body through a hinge, and the door frame is fixedly connected with the inflatable sealing ring corresponding to the door body.

The utility model has the advantages that: the utility model has the advantages of can make inside air cleanliness reach hundred grades, and need not worry that inside purifying environment can receive destruction and influence the quality of nuclide medicine in normal operation in-process, structural design is reasonable, the operation is safe convenient, the function accords with the trade standard, adopt two fans to control the gas flow direction and set up corresponding filter, guaranteed that hot indoor air quality and state are stable in the state that accords with the operational environment requirement, the environmental safety of radiopharmaceutical production and corresponding operation has been guaranteed, it accords with corresponding law and regulation and trade standard to have guaranteed hot room performance, the radiation protection effect is good, can effectively guarantee user's safety, radiation monitoring and alarming function have, be favorable to managers to master relevant circumstances in real time, be convenient for look for the problem, make radiopharmaceutical partial shipment hot chamber safe and reliable more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a front view of a radiopharmaceutical dispensing hot chamber according to an embodiment of the present invention;

figure 2 is a cross-sectional view a-a of a radiopharmaceutical dispensing hot chamber according to an embodiment of the present invention;

figure 3 is a cross-sectional view B-B of a radiopharmaceutical dispensing hot chamber according to an embodiment of the present invention;

figure 4 is an exploded view of a radiopharmaceutical dispensing hot chamber according to an embodiment of the present invention;

fig. 5 is a schematic view of an air intake and exhaust system according to an embodiment of the present invention;

fig. 6 is a schematic view of a radiation monitoring alarm device according to an embodiment of the present invention;

fig. 7 is a schematic view of a medicine inlet and outlet mechanism according to an embodiment of the present invention;

fig. 8 is an exploded view of a medicine inlet and outlet mechanism according to an embodiment of the present invention.

In the figure:

1. an air inlet pipe; 2. an exhaust duct; 3. an outer case; 4. an inner container; 5. a vent; 6. an air exhaust channel; 7. an air intake fan; 8. a primary filter; 9. a HEPA high efficiency filter; 10. an activated carbon filter; 11. an exhaust fan; 12. a protective door; 13. a medicine feeding drawer; 14. a medicine outlet drawer; 15. an inner medicine inlet door; 16. an inner medicine outlet door; 17. a lead shield shell; 18. a drawer shell; 19. an inflatable seal ring; 20. an air inlet pipe; 21. an exhaust pipe; 22. an audible and visual alarm; 23. a touch screen; 24. a protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1 to 8, a radiopharmaceutical dispensing hot chamber according to an embodiment of the present invention includes an outer case 3 and an inner container 4 inside the outer case 3, a protective door 12, a medicine inlet drawer 13 and a medicine outlet drawer 14 are respectively arranged on the front side wall of the outer box body 3, the protective door 12 corresponds to the inner container 4, the medicine inlet drawer 13 and the medicine outlet drawer 14 are both positioned below the inner container 4, an operating hand hole is arranged on the protective door 12, an operating glove which extends into the inner container 4 and corresponds to the operating hand hole is arranged on the front side wall of the inner container 4, the bottom wall of the inner container 4 is respectively provided with a medicine inlet inner door 15 and a medicine outlet inner door 16, the medicine inlet inner door 15 corresponds to the medicine inlet drawer 13, the medicine outlet inner door 16 corresponds to the medicine outlet drawer 14, and an air inlet and exhaust system is arranged on the outer box body 3.

The utility model discloses a concrete embodiment, advance exhaust system includes air-supply line 1 and exhaust pipe 2, air-supply line 1 runs through downwards communicate behind the roof of outer box 3 the inside of inner bag 4, the intercommunication is provided with at least one vent 5 on the inner bag 4, vent 5 is located the below of air-supply line 1, the inside of outer box 3 be provided with the corresponding passageway 6 of airing exhaust of vent 5, exhaust pipe 2 intercommunication the passageway 6 of airing exhaust, be provided with air intake fan 7 on the air-supply line 1, be provided with air exhaust fan 11 on the exhaust pipe 2.

The utility model discloses a in a concrete embodiment, still be provided with primary filter 8 and HEPA high efficiency filter 9 on the air-supply line 1, primary filter 8 is located the outside of outer box 3, air intake fan 7 with HEPA high efficiency filter 9 all is located the inside of outer box 3, air intake fan 7 is located primary filter 8 with between HEPA high efficiency filter 9, still be provided with activated carbon filter 10 on the exhaust pipe 2, activated carbon filter 10 is located the inside of outer box 3, air exhaust fan 11 is located the outside of outer box 3.

In a specific embodiment of the present invention, gaps are provided between the bottom wall of the outer box 3 and the bottom wall of the inner container 4 and between the rear side wall of the outer box 3 and the rear side wall of the inner container 4, and the gaps are communicated with each other to form the exhaust channel 6.

In a specific embodiment of the present invention, the air inlet pipe 1 and the air outlet pipe 2 are both provided with valves.

In an embodiment of the present invention, a radiation detector is disposed in the inner container 4, the radiation detector is connected to a PLC controller, the PLC controller is connected to the audible and visual alarm 22 and the electric lock of the protection door, and the electric lock of the protection door corresponds to the protection door 12.

In a specific embodiment of the present invention, a lead shielding case 17 is disposed outside the outer case 3, and a plurality of windows corresponding to the protection door 12, the medicine inlet drawer 13 and the medicine outlet drawer 14 one by one are disposed on the lead shielding case 17.

In a specific embodiment of the present invention, two drawer shells 18 are disposed in the outer box 3, a first opening for the medicine inlet drawer 13 or the medicine outlet drawer 14 to enter or exit is disposed on a front side wall of the drawer shells 18, a second opening is disposed on a top wall of the drawer shells 18, the second opening is hermetically connected to the medicine inlet inner door 15 or the medicine outlet inner door 16, an air-filled sealing ring 19 is disposed on the medicine inlet drawer 13, the medicine outlet drawer 14, the medicine inlet inner door 15 and the medicine outlet inner door 16.

In a specific embodiment of the present invention, the drawer shell 18 is communicated with the inner container 4 through an air inlet pipe 20, the drawer shell 18 is communicated with the air exhaust channel 6 through an air exhaust pipe 21, and the air inlet pipe 20 and the air exhaust pipe 21 are all provided with valves.

In a specific embodiment of the present invention, the medicine inlet inner door 15 and the medicine outlet inner door 16 all include a door body and a door frame, the door frame and the inner container 4 are fixedly connected, the door frame is hinged to the door body through a hinge, the door frame is fixedly connected to the door body, and the air-filled sealing ring 19 corresponds to the door body.

For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail through specific use modes.

The synthesis and the subpackage process of the radionuclide drug are carried out under strict environmental requirements, the air cleanliness of the environment for installing and using corresponding equipment must reach ten thousand-level purification, and the air cleanliness of the interior of the equipment for subpackaging the drug has higher requirement and must reach hundred-level purification. The radiopharmaceutical dispensing hot chamber must have the ability to keep the interior cavity air clean and at a level of hundreds of days. Consequently radiopharmaceutical partial shipment hot chamber dispose into exhaust system, business turn over medicine mechanism, inflatable seal 19 isotructures, can guarantee in whole working process that the user can not destroy the inside air purification degree of inner bag 4 when operating.

Radiopharmaceutical partial shipment hot chamber (also can be called radiopharmaceutical partial shipment hot chamber protective housing etc.) include outer box 3, inner bag 4, lead shield 17, advance exhaust system, advance out of medicine mechanism and radiation monitoring alarm device.

The lead shielding shell 17 can play a role in protection, and can effectively prevent radiation damage, thereby effectively protecting the safety of a user. The thickness of the lead shielding shell 17 is determined according to the maximum dose of the radionuclide drug, and the radiation shielding capability thereof is generally not lower than 60 mmPb. The lead shielding case 17 is composed of six lead plates, the lead equivalent of the lead plates meets the standard requirement after being measured by a method of GBZ/T147-2002 'determination of attenuation performance of X-ray protection material', and the contact surfaces are overlapped when the lead plates are installed so as to ensure that all directions are protected by radiation and avoid possible radiation leakage of the lead shielding case 17. The lead shielding shell 17 not only provides safe and reliable protection for medical staff, but also protects the surrounding environment of the equipment from radioactive pollution.

The inner container 4 is equipped with in the inside of outer box 3, and mountable split charging mechanism in the inner container 4 is equipped with guard gate 12 on the outer box 3, is provided with the sealing door corresponding with guard gate 12 on the inner container 4, all is provided with inflatable seal 19 between sealing door and the inner container 4 and between guard gate 12 and the outer box 3. The protective door 12 is provided with an observation window and two operation hand holes, the protective door 12 is also hinged with a protective cover 24 which can cover the operation hand holes, the sealing door of the inner container 4 is transparent or the opaque sealing door can be provided with the observation window, so that a user can observe the internal condition of the inner container 4. Be provided with the interior door 15 of advancing medicine and going out the medicine inner door 16 that all can open and shut on the diapire of inner bag 4, be provided with two operation gloves on the inner bag 4, the user can pass the arm behind the operation hand hole after opening the protective cover and stretch into operation gloves, through the inside partial shipment mechanism of operation gloves operatable inner bag 4 to can manually open and close advance medicine inner door 15 and go out medicine inner door 16. The medicine inlet inner door 15 and the medicine outlet inner door 16 both comprise door bodies and door frames. The door frame is sealed with the door body through the inflatable sealing ring 19.

The air intake and exhaust system has an air purification function, and can ensure that the air cleanliness inside the inner container 4 reaches class 100.

The radiation monitoring alarm device can display the radiation quantity in the inner container 4 in a digitalized information manner, and is provided with an alarm device and a linkage locking device after the value exceeds the standard, so that a user can know and prevent possible damage.

The medicine inlet and outlet mechanism comprises a medicine inlet drawer 13 and a medicine outlet drawer 14, the front side wall of the medicine inlet drawer 13 serves as a medicine inlet outer door, the area of the medicine inlet outer door is larger than the first opening of the drawer shell 18, the front side wall of the medicine outlet drawer 14 serves as a medicine outlet outer door, and the area of the medicine outlet outer door is larger than the first opening of the drawer shell 18. And the rear side wall of the medicine inlet outer door and the rear side wall of the medicine outlet outer door are both provided with an inflatable sealing ring 19. The outer box body 3 is provided with electric locks which are respectively corresponding to the medicine inlet outer door and the medicine outlet outer door one to one. The electric lock is connected with the PLC.

The outer box body 3, the lead shielding shell 17 and the inner container 4 are basic composition structures, and the air intake and exhaust system is a structure and power for providing clean air and keeping ventilation volume for the inner container 4; the inflatable sealing ring 19 ensures the sealing effect, so that the air quality in the inner container 4 can not be influenced by the outside air; the medicine inlet and outlet mechanism ensures that the air cleanliness of the outer liner 4 cannot be broken by external air when medicine inlet and outlet operations are carried out; the radiation monitoring alarm device is used for reminding a user of the internal condition and the danger degree and providing a necessary isolation locking means.

The air inlet and exhaust system comprises an air inlet pipe 1 and an air exhaust pipe 2, an air inlet fan 7, a primary filter 8 and an HEPA high-efficiency filter 9 are arranged on the air inlet pipe 1, and an air exhaust fan 11 and an active carbon filter 10 are arranged on the air exhaust pipe 2. The bottom wall of the inner container 4 and the lower part of the rear side wall of the inner container 4 are provided with ventilation openings 5. The bottom wall of the inner container 4, the rear side wall of the inner container 4, the bottom wall of the outer box 3 and the rear side wall of the outer box 3 jointly enclose an exhaust channel 6, and the exhaust channel 6 is respectively communicated with the vent 5 and the exhaust pipe 2.

When the air inlet and exhaust system is used specifically, under the action of the air inlet fan 7, the air inlet pipe 1 filters external air through the primary filter 8 and the HEPA high-efficiency filter 9 and then sends the filtered air into the inner container 4, and air inlet work is finished; under the action of the exhaust fan 11, the air inside the liner 4 is firstly exhausted into the exhaust channel 6 through the vents 5 on the bottom wall and the rear side wall, then is exhausted into the exhaust duct 2 through the exhaust channel 6, and finally is exhausted to the outside (generally connected with a special exhaust duct) after being filtered by the activated carbon filter 10, and the air flow direction is controlled by arranging the air intake fan 7 and the exhaust fan 11, so that the air pressure and the clean state inside the liner 4 can be maintained in a relatively stable state meeting the requirements. In order to enable the air flow in and out of the inner container 4 to be more controllable, the air inlet pipe 1 and the air outlet pipe 2 are respectively provided with a valve capable of adjusting the flow, so that the air pressure in the inner container 4 is adjusted by adjusting the valves, and the inside of the inner container 4 is better maintained in a negative pressure state.

The radiation monitoring and alarming device is based on an original control system, a radiation probe (namely a radiation detector) and a 4-20 mA communication cable and the like are added, the radiation quantity in an inner container in the process of subpackaging and processing the radiopharmaceuticals is converted into a linear analog quantity measuring value, the linear analog quantity measuring value is transmitted to a PLC (programmable logic controller) through a 4-20 mA signal, the PLC linearly converts the radiation quantity into a corresponding radiation dosage value and compares the radiation dosage value with a set value, if the radiation dosage value exceeds the set value, an alarm signal is sent to an audible and visual alarm 22 (the model is DC-SG 110), and the electric lock of a protective door is controlled through a DC24V control line to act so as to lock the protective.

The control system comprises a PLC controller. The PLC controller is SIEMENS S7-200. The PLC is connected with the touch screen 23 through a gateway and a network cable, and the model of the touch screen 23 is SIEMENS TP 1200. The electric lock of the guard door and the electric lock are both of the type SYL 60S.

The radiation detector is a gamma radiation detector, and the model of the gamma radiation detector is DH 50.

When the radiation monitoring and alarming device is used specifically, gamma rays of radioactive drugs in the liner are detected in real time through the radiation detector (namely, the radiation probe), data are transmitted to the PLC through RS485 communication, the data are displayed on the touch screen in real time after being converted into radiation dose values through the PLC, the radiation dose values are compared with set values through the PLC, if the radiation dose values exceed the set values, an alarming signal is sent to the audible and visual alarm 22, the electric lock action of the protective door is controlled, the protective door is locked, the internal condition and the danger degree of the liner of a user can be reminded, the user can know and prevent possible damage of the liner, and necessary isolation locking means are provided to protect the safety of the user.

The medicine feeding and discharging mechanism comprises a drawer shell 18, the left side wall or the right side wall of the drawer shell 18 is fixedly connected with an air inlet pipe 20 and an exhaust pipe 21 through flanges respectively, the drawer shell 18 is communicated with the air inlet pipe 20 and the exhaust pipe 21 respectively, a slidable drawer (namely, a medicine feeding drawer 13 or a medicine discharging drawer 14) is arranged in the drawer shell 18, the front side wall of the drawer shell 18 is provided with a first opening for the drawer to go in and out, the front side wall of the drawer serves as an outer door (namely, a medicine feeding outer door or a medicine discharging outer door), the edge of the outer door is attached to the edge of the first opening through an inflatable sealing ring 19, the top wall of the drawer shell 18 is provided with a second opening, the second opening is provided with an inner door (namely, the medicine feeding inner door 15 or the medicine discharging inner door 16), the inner door comprises a door body and a door frame, the door frame is fixed on the inner container 4. Valves are provided in both the inlet pipe 20 and the outlet pipe 21. The front side of the outer door is provided with a handle.

Drawer housing 18 may provide an enclosed environment; the air inlet pipe 20 is connected with the inner container 4 and is used for providing purified and filtered clean air into the drawer shell 18; the exhaust pipe 21 is connected with the exhaust channel 6 and used for exhausting air in the drawer shell 18 and providing space for air intake; the inflatable sealing ring 19 and the inner door can provide effective sealing isolation for the drawer shell 18 and the inner container 4; the inflatable sealing ring 19 and the outer door can provide effective sealing isolation for the drawer shell 18 and the external air environment; the drawer is a container for medicine to enter and exit and an operation structure.

When the medicine inlet and outlet mechanism is used specifically, during medicine inlet, the medicine inlet outer door is opened firstly, the medicine inlet drawer 13 is pulled out, the medicine can is placed at the designated position of the medicine inlet drawer 13, the medicine inlet drawer 13 is pushed in, the medicine inlet outer door is closed, at the moment, the inflatable sealing ring 19 at the medicine inlet outer door is inflated and sealed, air purification is started in the drawer shell 18 where the medicine inlet drawer 13 is located, when the purification time reaches the preset time, the inflatable sealing ring 19 at the medicine inlet inner door 15 is exhausted to finish the sealing state, the medicine inlet inner door 15 is opened, the medicine can in the medicine inlet drawer 13 is taken into the inner container 4, the medicine inlet inner door 15 is closed, and the medicine inlet process is finished; when the medicine is discharged, the air in the drawer shell 18 where the medicine discharging drawer 14 is located is in a purification state, the medicine discharging inner door 16 is opened, the medicine can is placed at the designated position of the medicine discharging drawer 14, the medicine discharging inner door 16 is closed, the inflatable sealing ring 19 at the medicine discharging inner door 16 is inflated and sealed at the moment, the medicine discharging outer door is opened, the medicine discharging drawer 14 is pulled out, the medicine can in the medicine discharging drawer 14 is taken out, the medicine discharging drawer 14 is pushed into and the medicine discharging outer door is closed after the medicine discharging is completed, the inflatable sealing ring 19 at the medicine discharging outer door is inflated and sealed at the moment, the air in the drawer shell 18 where the medicine discharging drawer 14 is located begins to be purified, and preparation is made for the next operation.

To sum up, with the aid of the above technical scheme of the utility model, can make inside air cleanliness reach hundred grades, and do not worry in normal operation process that inside purifying environment can receive destruction and influence the quality of nuclide medicine, structural design is reasonable, and the operation is safe convenient, and the function accords with the industrial standard. The double fans (namely the air inlet fan and the air exhaust fan) are adopted to control the flow direction of the gas and are provided with corresponding filters (namely a primary filter, an HEPA high-efficiency filter and an activated carbon filter), so that the quality and the state of the air in the hot chamber are ensured to be stable in a state meeting the requirements of the working environment, the environmental safety of the production and the corresponding operation of the radioactive medicament is ensured, and the service performance of the hot chamber is ensured to meet the corresponding laws and regulations and industrial specifications. The radiation protection effect is good, the safety of a user can be effectively guaranteed, the radiation monitoring and alarming functions are realized, management personnel can master related conditions in real time, problems can be conveniently found, and the radiopharmaceutical subpackaging hot chamber is safer and more reliable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The radiopharmaceutical split charging hot chamber comprises an outer box body (3) and an inner container (4) positioned inside the outer box body (3), and is characterized in that a protective door (12), a medicine inlet drawer (13) and a medicine outlet drawer (14) are respectively arranged on the front side wall of the outer box body (3), the protective door (12) corresponds to the inner container (4), the medicine inlet drawer (13) and the medicine outlet drawer (14) are both positioned below the inner container (4), an operating hand hole is formed in the protective door (12), an operating glove which extends into the inner container (4) and corresponds to the operating hand hole is arranged on the front side wall of the inner container (4), a medicine inlet inner door (15) and a medicine outlet inner door (16) are respectively arranged on the bottom wall of the inner container (4), the medicine inlet inner door (15) corresponds to the medicine inlet drawer (13), the medicine outlet inner door (16) corresponds to the medicine outlet drawer (14), and an air inlet and exhaust system is arranged on the outer box body (3).

2. The radiopharmaceutical subpackaging hot chamber according to claim 1, wherein the air intake and exhaust system comprises an air intake pipe (1) and an air exhaust pipe (2), the air intake pipe (1) penetrates through the top wall of the outer box (3) downwards and then is communicated with the inside of the inner container (4), at least one vent (5) is communicated with the inner container (4), the vent (5) is located below the air intake pipe (1), an air exhaust channel (6) corresponding to the vent (5) is arranged in the outer box (3), the air exhaust pipe (2) is communicated with the air exhaust channel (6), an air intake fan (7) is arranged on the air intake pipe (1), and an air exhaust fan (11) is arranged on the air exhaust pipe (2).

3. The radiopharmaceutical subpackaging hot chamber of claim 2, wherein a primary filter (8) and a HEPA high efficiency filter (9) are further arranged on the air inlet pipe (1), the primary filter (8) is arranged outside the outer box body (3), the air inlet fan (7) and the HEPA high efficiency filter (9) are both arranged inside the outer box body (3), the air inlet fan (7) is arranged between the primary filter (8) and the HEPA high efficiency filter (9), the air outlet pipe (2) is further provided with an activated carbon filter (10), the activated carbon filter (10) is arranged inside the outer box body (3), and the air outlet fan (11) is arranged outside the outer box body (3).

4. The radiopharmaceutical dispensing hot chamber as set forth in claim 2, wherein gaps are provided between the bottom wall of the outer box (3) and the bottom wall of the inner container (4) and between the rear side wall of the outer box (3) and the rear side wall of the inner container (4), and the exhaust channel (6) is formed after the two gaps are communicated with each other.

5. The radiopharmaceutical dispensing hot chamber as set forth in claim 2, wherein valves are provided on both the air inlet pipe (1) and the air outlet pipe (2).

6. The radiopharmaceutical dispensing hot chamber as set forth in claim 1, characterized in that a radiation detector is arranged in the inner container (4), the radiation detector is connected with a PLC controller, the PLC controller is respectively connected with an audible and visual alarm (22) and a protective door electric lock, and the protective door electric lock corresponds to the protective door (12).

7. The radiopharmaceutical dispensing hot chamber as set forth in claim 1, wherein a lead shielding case (17) is disposed outside the outer case (3), and a plurality of windows corresponding to the protection door (12), the drug inlet drawer (13) and the drug outlet drawer (14) are opened on the lead shielding case (17).

8. The radiopharmaceutical split charging hot chamber according to claim 2, wherein two drawer shells (18) are arranged in the outer box (3), a first opening for the medicine inlet drawer (13) or the medicine outlet drawer (14) to enter and exit is formed in the front side wall of each drawer shell (18), a second opening is formed in the top wall of each drawer shell (18), the second opening is hermetically connected with the medicine inlet inner door (15) or the medicine outlet inner door (16), and air-filled sealing rings (19) are arranged on the medicine inlet drawer (13), the medicine outlet drawer (14), the medicine inlet inner door (15) and the medicine outlet inner door (16).

9. The radiopharmaceutical dispensing hot chamber of claim 8, wherein the drawer housing (18) is connected to the inner container (4) through an air inlet pipe (20), the drawer housing (18) is connected to the air exhaust channel (6) through an air exhaust pipe (21), and valves are arranged on the air inlet pipe (20) and the air exhaust pipe (21).

10. The radiopharmaceutical dispensing hot chamber of claim 8, wherein the medicine inlet inner door (15) and the medicine outlet inner door (16) both comprise a door body and a door frame, the door frame is fixedly connected with the inner container (4), the door frame is hinged with the door body through a hinge, and the door frame is fixedly connected with the inflatable sealing ring (19) corresponding to the door body.