A radiation protection device for radioactive therapeutic drugs

Abstract

The present invention discloses a radiation protection device for radioactive therapeutic drugs, comprising: a drug cartridge compartment, a pressure storage component, a needle liquid tube and a drug storage device. The drug cartridge compartment comprises a compartment pipe body and a pressure storage spring located inside the drug cartridge compartment. A plug is provided at one end of the compartment pipe body, and a joint seat connected to the pressure storage component is provided at the other end of the compartment pipe body. A centering hole is provided on the inner side of the joint seat. The drug storage device is slidably mounted on the inner side of the compartment pipe body and one end abuts against the end of the pressure storage spring. The pressure storage component comprises a pressure withdrawal tube, a pressure core tube and a centering spring. In the present invention, by setting a new storage bottle and syringe structure, the radiation leakage of the radioactive therapeutic drugs is isolated by the isolation sleeve and the isolation diaphragm on the surface of the accommodating tube during the storage of the radioactive therapeutic drugs. The drugs are contactlessly extracted by cooperating with the drug cartridge compartment and the pressure storage component, thereby achieving full-stage protection of the drugs, avoiding drug liquid leakage and radiation overflow, simplifying the injection operation steps, and ensuring the safety of medical staff.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, in particular to a radiation protection device for radioactive therapeutic drugs. Background Art

[0002] Radioactive therapeutic drugs are widely used in modern medicine to treat cancer and other malignant tumors. The radiation effect of radioactive drugs is used to destroy cancer cells, thereby achieving the purpose of treatment. However, the use of radioactive drugs also brings significant safety risks, especially radiation leakage may cause harm to medical staff and patients. Therefore, how to effectively store and inject radioactive drugs to prevent radiation leakage and drug contamination is an important issue in the current medical device field.

[0003] Existing radioactive drug storage and injection equipment often fails to fully consider radiation protection measures in its design, resulting in the risk of radiation leakage during drug storage and injection. Failure to effectively isolate radiation will endanger the health of medical staff and patients. Among them, existing equipment usually requires multiple steps in the drug injection process, including drug transfer, syringe filling, etc., which not only increases the complexity of operation, but may also cause drug leakage and radiation diffusion. Due to operational complexity and equipment design defects, traditional equipment often cannot accurately control the injection volume during drug injection, resulting in drug waste and increased treatment costs. In addition, traditional equipment is disposable and must be strictly managed and disposed of in accordance with radiation hazards after use, resulting in high use costs and many defects.

[0004] In view of this, research and improvement are carried out on the existing problems, and a radioactive therapeutic drug radiation protection device is provided to solve the current problems. The purpose is to solve the problems and improve the practical value through this technology. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted by the present invention is: a radioactive therapeutic drug radiation protection device, comprising: a drug cartridge compartment, a pressure storage component, a needle liquid tube and a drug storage device, the drug cartridge compartment comprises a compartment pipe body and a pressure storage spring located on the inner side of the drug cartridge compartment, one end of the compartment pipe body is provided with a plug, and the other end of the compartment pipe body is provided with a joint seat connected to the pressure storage component, the inner side of the joint seat is provided with a centering hole, the drug storage device is slidably installed on the inner side of the compartment pipe body and one end is abutted against the end of the pressure storage spring, the pressure storage component comprises a pressure-retracting tube, a pressure-core tube and a centering spring, the pressure-core tube and the centering spring are slidably sleeved on the inner side of the pressure-retracting tube, and the pressure-core tube is slidably sleeved on the surface of the centering spring. The surface of the pressure core tube is formed on the surface of the pressure core, and one end of the pressure core tube is in contact with the surface of the centering hole. One end of the needle liquid tube is provided with a ball seat joint and is slidably sleeved on the inner side of the pressure retreat tube. The centering spring is a conical structure. The pressure core tube includes a main core and a piston tube core and a ball head located at both ends of the main core. The surface of the ball head is movably in contact with the end of the ball seat joint. The diameter of the piston tube core is smaller than the diameter of the main core and a conical inclined surface is provided at the connection between the two. The pressure core tube and the needle liquid tube are both provided with a liquid channel for connecting the drug liquid. One end of the needle liquid tube is detachably connected to a needle. The drug storage device includes a accommodating tube and an isolation sleeve. The isolation sleeve is wrapped around the outside of the accommodating tube, and an isolation diaphragm is provided at the bottom end of the inner cavity of the isolation sleeve.

[0007] In a preferred example, the present invention can be further configured as follows: the surface of the cabin tube body is provided with symmetrically arranged dosage adjustment grooves, an adjustment block ring is slidably installed on the inner side of the cabin tube body, and both ends of the adjustment block ring are provided with paddles that penetrate the dosage adjustment grooves, and the paddles and the surface of the dosage adjustment grooves are provided with sliding damping, and the top surface of the adjustment block ring is in contact with the bottom surface of the medicine storage container.

[0008] In a preferred example, the present invention can be further configured as follows: the diameter of the piston tube core is adapted to the inner diameter of the accommodating tube, and a convex tooth for destroying the isolation diaphragm is provided at the top of the piston tube core.

[0009] In a preferred example, the present invention can be further configured as follows: the internal flow channel diameters of the pressure core tube and the needle liquid tube are equal to the inner diameter of the needle, the bottom surface of the bottom end of the ball head is fitted with the ball seat joint and the surface, and the ball head and the ball seat joint are both provided with expansion holes connected to the internal flow channels of the pressure core tube and the needle liquid tube.

[0010] In a preferred example, the present invention can be further configured as follows: the inner diameter of the top end of the centering spring is less than or equal to the diameter of the main core, and the inner diameter of the bottom end of the centering spring is less than or equal to the diameter of the ball head, and the upper and lower ends of the centering spring are respectively in contact with the centering hole and the surface of the ball head and are in a compressed state.

[0011] In a preferred example, the present invention can be further configured as follows: the core pressure tube and the centering spring are tungsten alloy or stainless steel components and the inner wall of the flow channel is provided with a lead coating or a tungsten powder composite material coating, and the inner side of the cabin tube body and the pressure withdrawal tube are both adhered with a radiation isolation layer.

[0012] In a preferred example, the present invention can be further configured as follows: the accommodating tube is a high-strength glass material component, and the isolation sleeve is a lead layer structure.

[0013] In a preferred example, the present invention can be further configured as follows: the isolation diaphragm includes a lead foil layer and a polyethylene diaphragm layer located on the upper and lower sides of the lead foil layer; the outer periphery of the isolation diaphragm is sealed and bonded to the inner wall of the containing tube for sealing and preserving the drug solution inside the containing tube; and the surface of the lead foil layer is provided with a pre-cut.

[0014] The beneficial effects achieved by the present invention are:

[0015] 1. In the present invention, by providing a new storage bottle and syringe structure, the radiation leakage of the radioactive therapeutic drug is isolated by the isolation sleeve and the isolation diaphragm on the surface of the storage tube during the storage of the radioactive therapeutic drug, and the drug is contactlessly led out by cooperating with the drug cartridge compartment and the pressure storage component, thereby realizing full-stage protection of the drug, avoiding leakage of the drug solution and radiation overflow, simplifying the injection operation steps, and ensuring the safety of medical staff.

[0016] 2. In the present invention, a force storage type intramuscular syringe structure is provided. During the press injection, the internal volume of the accommodating tube is compressed by the force storage of the internal pressure storage spring to extract the medicine under positive pressure. One-touch injection is performed without the need for transferring the medicine between the storage bottle and the syringe, thereby improving the injection efficiency and avoiding radiation leakage.

[0017] 3. In the present invention, a split structural design is adopted, and the detachable structure inside the drug cartridge and the pressure storage component is utilized to facilitate the loading of the drug reservoir, and the needle can be quickly replaced after injection, and the entire drug cartridge and the pressure storage component can be disassembled, maintained and disinfected, thereby reducing the cost of drug use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the exploded structure of a cartridge compartment according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a medicine storage device according to an embodiment of the present invention;

[0022] Figure 5A schematic diagram of the structure of a core-pressing tube and a needle-liquid tube according to an embodiment of the present invention;

[0023] Figure 6 The figure is a schematic diagram of the structure of a core pressing tube and a centering spring according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 100, ammunition compartment; 110, compartment pipe body; 120, plug modification; 130, pressure storage spring; 140, adjustment block ring; 111, connector seat; 112, centering hole; 113, dosage adjustment slide;

[0026] 200, pressure storage assembly; 210, pressure-retracting tube; 220, pressure-core tube; 230, centering spring; 221, main core; 222, piston core; 223, ball head; 224, tapered surface;

[0027] 300, needle liquid tube; 310, needle; 320, ball seat joint;

[0028] 400, drug storage container; 410, containing tube; 420, isolation sleeve; 430, isolation diaphragm. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0030] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0031] A radiation protection device for radioactive therapeutic drugs provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0032] Combination Figure 1-6As shown, a radioactive therapeutic drug radiation protection device provided by the present invention includes: a drug capsule 100, a pressure storage component 200, a needle liquid tube 300 and a drug storage device 400, the drug capsule 100 includes a capsule tube body 110 and a pressure storage spring 130 located inside the drug capsule 100, one end of the capsule tube body 110 is provided with a plug 120, and the other end of the capsule tube body 110 is provided with a joint seat 111 connected to the pressure storage component 200, the inner side of the joint seat 111 is provided with a centering hole 112, the drug storage device 400 is slidably installed on the inner side of the capsule tube body 110 and one end is abutted against the end of the pressure storage spring 130, the pressure storage component 200 includes a compression tube 210, a compression core tube 220 and a centering spring 230, the compression core tube 220 and the centering spring 230 are slidably sleeved on the inner side of the compression tube 210, and the compression core tube 220 is slidably sleeved on the inner side of the centering spring 230. The surface of the needle liquid tube 300 is provided with a ball socket joint 320 at one end and is slidably sleeved on the inner side of the compression tube 210. The centering spring 230 has a conical structure. The compression core tube 220 includes a main core 221 and a piston core 222 and a ball head 223 located at both ends of the main core 221. The surface of the ball head 223 is movably abutted against the end of the ball socket joint 320. The diameter of the piston core 222 is smaller than the diameter of the main core 221 and a conical inclined surface 224 is provided at the connection between the two. The compression core tube 220 and the needle liquid tube 300 are both provided with a liquid channel for connecting the drug solution. One end of the needle liquid tube 300 is detachably connected to the needle 310. The drug storage container 400 includes a accommodating tube 410 and an isolation sleeve 420. The isolation sleeve 420 is wrapped around the outer side of the accommodating tube 410, and an isolation diaphragm 430 is provided at the bottom end of the inner cavity of the isolation sleeve 420.

[0033] In this embodiment, the surface of the cabin tube body 110 is provided with symmetrically arranged dosage adjustment grooves 113, and an adjustment block ring 140 is slidably installed on the inner side of the cabin tube body 110, and both ends of the adjustment block ring 140 are provided with paddles arranged through the dosage adjustment groove 113, and the paddles and the surface of the dosage adjustment groove 113 are provided with sliding damping, and the top surface of the adjustment block ring 140 is in contact with the bottom surface of the medicine storage container 400.

[0034] Specifically, the position of the regulating ring 140 is slidably adjusted along the dosage regulating groove 113 according to the required injection volume. The farther the regulating ring 140 is from the end of the connector seat 111, the less the subsequent injection liquid volume will be. Conversely, the more the injection medicine volume will be, thereby achieving precise control of the injection volume.

[0035] In this embodiment, the diameter of the piston tube core 222 is matched with the inner diameter of the accommodating tube 410 , and a protruding tooth for destroying the isolation diaphragm 430 is provided at the top of the piston tube core 222 .

[0036] In this embodiment, the internal flow channel diameter of the pressure core tube 220 and the needle liquid tube 300 is equal to the inner diameter of the needle 310, the bottom surface of the bottom end of the ball head 223 is in contact with the surface of the ball seat joint 320, and the inside of the ball head 223 and the ball seat joint 320 are provided with expansion holes connected to the internal flow channel of the pressure core tube 220 and the needle liquid tube 300.

[0037] Specifically, the core pressing tube 220 can maintain the engagement effect with the needle 310 through the fit between the ball head 223 and the needle 310, and realize the internal flow channel communication.

[0038] In this embodiment, the inner diameter of the top end of the centering spring 230 is less than or equal to the diameter of the main core 221, and the inner diameter of the bottom end of the centering spring 230 is less than or equal to the diameter of the ball head 223. The upper and lower ends of the centering spring 230 are respectively in contact with the centering hole 112 and the surface of the ball head 223 and are in a compressed state.

[0039] Specifically, the centering spring 230 is compressed and deformed during the retreat movement of the pressure core tube 220 until the conical inclined surface 224 abuts against the inside of the centering spring 230. The centering spring 230 gives the moving pressure core tube 220 a lateral force, so that the inclined pressure core tube 220 is gradually located on the axis of the centering spring 230. When the ball head 223 and the axis of the centering spring 230 coincide, the end of the pressure core tube 220 enters the interior of the accommodating tube 410.

[0040] In this embodiment, the core compression tube 220 and the centering spring 230 are made of tungsten alloy or stainless steel and the inner wall of the flow channel is provided with a lead coating or a tungsten powder composite material coating, and the inner side of the cabin tube body 110 and the compression withdrawal tube 210 are both adhered with a radiation isolation layer.

[0041] Specifically, radiation leakage during injection is avoided by a built-in radiation isolation layer.

[0042] In this embodiment, the accommodating tube 410 is a high-strength glass material component, and the isolation sleeve 420 is a lead layer structure.

[0043] Specifically, the thickness of the isolation sleeve 420 needs to be designed according to the radiation intensity of the stored radioactive drug to ensure that the necessary shielding effect can be achieved.

[0044] In this embodiment, the isolation diaphragm 430 includes a lead foil layer and a polyethylene film layer located on the upper and lower sides of the lead foil layer. The outer periphery of the isolation diaphragm 430 is sealed and bonded to the inner wall of the containing tube 410 for sealing and preserving the drug solution inside the containing tube 410, and a pre-cut is provided on the surface of the lead foil layer.

[0045] The working principle and use process of the present invention:

[0046] In the storage of radioactive therapeutic drugs, the radiation leakage of radioactive therapeutic drugs is isolated by the isolation sleeve 420 and the isolation diaphragm 430 on the surface of the containing tube 410. When injecting radioactive therapeutic drugs, the drug storage container 400 containing radioactive therapeutic drugs is inverted inside the cabin pipe body 110, and the pressure storage spring 130 is installed and the plug 120 is installed for plugging. The position of the regulating block ring 140 is slidably adjusted along the dose adjustment slide groove 113 according to the required injection amount. The farther the regulating block ring 140 is away from the end of the joint seat 111, the less the subsequent injection liquid amount is, and vice versa, the more the injection medicine amount is, so as to realize the precise control of the injection amount;

[0047] During injection molding, the needle 310 is installed at the end of the needle tube 300 to penetrate into the human muscle tissue. After the penetration of the needle 310 is blocked or completely enters the human body, the needle tube 300 is compressed to retreat relative to the compression tube 210. In the initial state, the centering spring 230 pushes the bottom end of the pressure core tube 220 to abut against the ball head 223 and the end of the needle 310, and the centering spring 230 is connected to the internal flow channel of the needle tube 300. The top of the centering spring 230 contacts the bottom end of the accommodating tube 410. During the retreat movement of the needle tube 300, the pressure core tube 220 and the drug storage container 400 move synchronously, causing the centering spring 230 to compress and retreat, and the pressure storage spring 130 to compress and store energy, until the conical inclined surface 224 on the surface of the pressure core tube 220 abuts against the inner wall of the centering spring 230. The centering spring 230 gives a lateral force to the moving pressure core tube 220, so that the inclined pressure core The tube 220 is gradually located on the axis of the centering spring 230. When the ball head 223 and the axis of the centering spring 230 coincide, the end of the pressure core tube 220 enters the interior of the accommodating tube 410, and the pressure storage spring 130 on the top surface of the medicine reservoir 400 elastically recovers and pushes the medicine reservoir 400 to move toward the pressure core tube 220. The end of the pressure core tube 220 pierces the isolation diaphragm 430, so that the medicine inside the isolation diaphragm 430 is discharged along the pressure core tube 220 and the needle liquid tube 300, and the isolation diaphragm 430 is pressurized, the medicine is squeezed out, and the injection work is completed. The limit of the regulating ring 140 can limit the relative movement of the medicine reservoir 400 and the pressure core tube 220, that is, control the amount of medicine discharged from the medicine reservoir 400, and control the medicine. After the injection is completed, the drug cartridge 100 and the pressure storage assembly 200 can be disassembled, cleaned and maintained, and high-level cleaning, disinfection and sterilization are carried out for the next injection.

[0048] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A radiation protection device for radioactive therapeutic drugs, characterized in that: include: A drug ammunition compartment (100), a pressure storage assembly (200), a needle liquid tube (300) and a drug storage device (400). The drug ammunition compartment (100) comprises a compartment pipe body (110) and a pressure storage spring (130) located inside the drug ammunition compartment (100). One end of the compartment pipe body (110) is provided with a plug (120), and the other end of the compartment pipe body (110) is provided with a joint seat (111) connected to the pressure storage assembly (200). The inner side of the joint seat (111) is provided with a centering hole (112). The drug storage device (400) is slidably mounted on the inner side of the compartment pipe body (110) and one end of the drug storage device is in contact with the end of the pressure storage spring (130). The pressure assembly (200) comprises a pressure-retracting tube (210), a pressure core tube (220) and a centering spring (230); the pressure core tube (220) and the centering spring (230) are slidably sleeved on the inner side of the pressure-retracting tube (210); the pressure core tube (220) is slidably sleeved on the surface of the centering spring (230) and one end thereof abuts against the surface of the centering hole (112); one end of the needle liquid tube (300) is provided with a ball seat joint (320) and is slidably sleeved on the inner side of the pressure-retracting tube (210); the centering spring (230) is of a conical structure; the pressure core tube (220) comprises a main core (221) and piston cores located at both ends of the main core (221) (222) and a ball head (223), the surface of the ball head (223) being movably abutted against the end of the ball seat joint (320), the diameter of the piston tube core (222) being smaller than the diameter of the main tube core (221), and a conical inclined surface (224) being provided at the connection between the two, the insides of the pressure core tube (220) and the needle liquid tube (300) being provided with a liquid channel for communicating with the liquid medicine, one end of the needle liquid tube (300) being detachably connected with the needle head (310), the drug storage container (400) comprising a containing tube (410) and an isolation sleeve (420), the isolation sleeve (420) being wrapped around the outside of the containing tube (410), the bottom end of the inner cavity of the isolation sleeve (420) An isolation diaphragm (430) is provided; the surface of the chamber pipe body (110) is provided with symmetrically arranged dosage adjustment grooves (113); an adjustment block ring (140) is slidably mounted on the inner side of the chamber pipe body (110); and both ends of the adjustment block ring (140) are provided with paddles penetrating the dosage adjustment grooves (113); and sliding damping is provided on the surfaces of the paddles and the dosage adjustment grooves (113); and the top surface of the adjustment block ring (140) abuts against the bottom surface of the medicine storage container (400); the diameter of the piston tube core (222) is adapted to the inner diameter of the accommodating tube (410), and a convex tooth for destroying the isolation diaphragm (430) is provided at the top end of the piston tube core (222).

2. A radioactive therapeutic drug radiation protection device according to claim 1, characterized in that: The diameter of the internal flow channels of the core-pressing tube (220) and the needle-liquid tube (300) is equal to the inner diameter of the needle (310); the bottom surface of the bottom end of the ball-joint (223) is in contact with the surface of the ball-joint (320); and the inside of the ball-joint (223) and the ball-joint (320) are both provided with expansion holes that are in communication with the internal flow channels of the core-pressing tube (220) and the needle-liquid tube (300).

3. A radioactive therapeutic drug radiation protection device according to claim 1, characterized in that: The inner diameter of the top end of the centering spring (230) is less than or equal to the diameter of the main core (221), and the inner diameter of the bottom end of the centering spring (230) is less than or equal to the diameter of the ball head (223). The upper and lower ends of the centering spring (230) are respectively in contact with the centering hole (112) and the surface of the ball head (223) and are in a compressed state.

4. A radioactive therapeutic drug radiation protection device according to claim 1, characterized in that: The core pressure tube (220) and the centering spring (230) are tungsten alloy or stainless steel components, and the inner wall of the flow channel is provided with a lead coating or a tungsten powder composite material coating, and the inner sides of the cabin tube body (110) and the pressure-reduction tube (210) are both adhered with a radiation isolation layer.

5. The radioactive therapeutic drug radiation protection device according to claim 1, characterized in that: The accommodating tube (410) is a high-strength glass material component, and the isolation sleeve (420) is a lead layer structure.

6. The radioactive therapeutic drug radiation protection device according to claim 1, characterized in that: The isolation diaphragm (430) comprises a lead foil layer and polyethylene diaphragm layers located on the upper and lower sides of the lead foil layer. The outer periphery of the isolation diaphragm (430) is sealed and bonded to the inner wall of the containing tube (410) for sealing and storing the liquid medicine inside the containing tube (410). A pre-cut is provided on the surface of the lead foil layer.

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