Radiopharmaceutical injection device
By designing a radioactive drug injection device, the balloon temporarily stores iodine 131 drugs and saline, it realizes closed drug delivery, which solves the problems of drug spillage and radiation leakage, and ensures the safety of medical staff.
Patent Information
- Application Number
- CN202422141865.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, iodine 131 drugs are prone to leaking and dripping during oral administration, resulting in drug residues, and there is a risk of drug leakage and radiation leakage, endangering medical staff and the environment.
A radiopharmaceutical injection device is designed, including a syringe, a tee-way plug valve, an extension tube, a balloon and a control switch. The balloon temporarily stores iodine 131 drugs and saline, and uses a suction nozzle to achieve closed drug delivery to prevent drug exposure to the air.
Confined drug delivery is achieved, reducing the risk of drug leakage and radiation leakage, ensuring the safety of medical staff, and reducing environmental pollution.
Smart Images
Figure CN223208815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection devices, in particular to a radioactive drug injection device. Background Art
[0002] Iodine-131 is a radioactive isotope used in nuclear medicine treatments. Medical staff assist patients in administering iodine-131 orally. During the medication process, it is important to prevent leakage of the drug, which could pose unnecessary risks to medical staff and the surrounding environment, thereby minimizing any health risks.
[0003] At present, iodine-131 drugs are injected into disposable cups through syringes and patients are asked to drink directly. This can easily cause the drug to spill or drip, and there is a lot of drug residue in the cup, which is easily volatilized when exposed to the air. There is a risk of drug leakage and radiation leakage, causing radiation pollution to the surrounding environment and endangering medical staff. Utility Model Content
[0004] The purpose of the utility model is to address the problems existing in the background technology and propose a radioactive drug injection device. Iodine 131 drug is first injected into the balloon. After the patient drinks it, saline is injected into the balloon. After the patient drinks the saline after flushing the tube, closed drug administration is achieved, which prevents the drug from being exposed and volatilized in the air, reduces drug leakage, and reduces the risk of radiation leakage.
[0005] The technical solution of the utility model is a radiopharmaceutical injection device, comprising a syringe A, a syringe B, a three-way stopcock, an extension tube, a balloon, a control switch and a suction nozzle; the three-way stopcock has an input end A, an input end B and an output end C; the liquid outlet end of the syringe A is connected to the input end B of the three-way stopcock; the liquid outlet end of the syringe B is connected to the input end A of the three-way stopcock; one end of the extension tube is connected to the output end C of the three-way stopcock, and the other end is connected to the suction nozzle, the extension tube is connected to the balloon, and the control switch is arranged between the balloon and the suction nozzle and controls the extension tube to be turned on and off.
[0006] Preferably, syringe a is a 10 ml sterile needle-less syringe, syringe b is a 20 ml sterile needle-less syringe, and the balloon capacity is 15-20 ml.
[0007] Preferably, the extension tube is a PVC sterile food-grade silicone hose.
[0008] Preferably, the length of the extension tube is 100 cm, the distance between the balloon and the output end c of the three-way stopcock is 30 cm, and the distance between the control switch and the suction nozzle is 20 cm.
[0009] Preferably, the nozzle is made of silicone and has a cross hole.
[0010] Preferably, the suction nozzle is connected to a suction nozzle cover that can cover the suction nozzle.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects:
[0012] The utility model injects iodine-131 medicine and saline into the balloon successively. The patient first sucks the iodine-131 medicine through the mouthpiece, and then sucks the saline after flushing the tube through the mouthpiece, thereby realizing closed drug administration, preventing the drug from being exposed and volatilized in the air, reducing drug leakage, and lowering the risk of radiation leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.
[0014] Figure numerals: 1. syringe a; 2. syringe b; 3. three-way stopcock; 4. extension tube; 5. balloon; 6. control switch; 7. nozzle. DETAILED DESCRIPTION
[0015] like Figure 1 As shown, a radiopharmaceutical injection device proposed in this embodiment includes a syringe a1, a syringe b2, a three-way stopcock 3, an extension tube 4, a balloon 5, a control switch 6 and a nozzle 7.
[0016] The three-way stopcock valve 3 has an input end A, an input end B and an output end C.
[0017] Syringe a1 is a 10ml sterile, needleless syringe. Its liquid outlet is connected to input B of the three-way stopcock 3. Syringe a1 is not initially connected to the three-way stopcock 3. Iodine-131 is drawn into syringe a1, and then connected to input B of the three-way stopcock 3. Syringe a1 is transparent and has graduated lines, making it easy to observe the amount of iodine-131 withdrawn. The appropriate amount is withdrawn based on the patient's needs. When injecting the drug into the three-way stopcock 3, the plunger of syringe a1 is pushed all the way down.
[0018] Syringe b2 is a 20ml sterile, needleless syringe. Its liquid outlet is connected to input A of the three-way stopcock 3. Syringe b2 is not initially connected to the three-way stopcock 3. Saline is drawn into the syringe through syringe b2, and then connected to input A of the three-way stopcock 3. Syringe b2 is transparent and has graduated lines to facilitate visualization of the amount of saline drawn in. The amount of saline drawn in should be sufficient to effectively flush the extension tube 4.
[0019] When injecting iodine-131 into extension tube 4 via three-way stopcock 3 from syringe a1, the three-way stopcock 3 is adjusted to close input end A and connect input end B and output end C. Iodine-131 enters extension tube 4 from syringe a1 via three-way stopcock 3, while the saline in syringe b2 remains stationary. When injecting saline into extension tube 4 via three-way stopcock 3 from syringe b2, the three-way stopcock 3 is adjusted to close input end B and connect input end A and output end C. Saline enters extension tube 4 via three-way stopcock 3.
[0020] The extension tube 4 is a 100 cm long, sterile, food-grade PVC silicone hose. One end of the extension tube 4 is connected to the output port C of the three-way stopcock 3, and the other end is connected to a suction nozzle 7. The suction nozzle 7 is made of silicone and features a cross-shaped hole. The suction nozzle 7 automatically controls the flow rate through suction, preventing choking and leaks, ensuring a smooth suction process for the patient. A nozzle cap is attached to the suction nozzle 7, which can be replaced after the patient has finished taking the medication, further enhancing protection.
[0021] Extension tube 4 is connected to balloon 5, which has a capacity of 15-20 ml and a certain deformation range, and can effectively temporarily store iodine 131 or saline. The distance between balloon 5 and output end c of three-way stopcock 3 is 30 cm.
[0022] The control switch 6, located between the balloon 5 and the suction nozzle 7, controls the opening and closing of the extension tube 4. This pinch-action switch is similar to the existing infusion pump mechanism that uses a roller to pinch and tighten the infusion tube to control its opening and closing. The control switch 6 is 20 cm away from the suction nozzle 7. After the patient holds the suction nozzle 7 with their mouth, they can conveniently operate the control switch 6 to open and close the extension tube 4, eliminating the need for medical personnel to control the opening and closing, thus reducing the risk to medical personnel.
[0023] When using the present embodiment, first, the extension tube 4 is adjusted to the blocked state by the control switch 6, and the medical staff injects the iodine-131 medicine into the sacculus 5 through the syringe a1 for temporary storage. Then the patient turns on the control switch 6 and sucks the iodine-131 medicine in the extension tube 4 and the sacculus 5 through the suction nozzle 7. After the patient has finished drinking the iodine-131 medicine, the patient first adjusts the extension tube 4 to the blocked state by the control switch 6, and the medical staff injects saline into the sacculus 5 through the syringe b2 again. The saline can be rinsed when passing through the extension tube 4 and the sacculus 5 to rinse off the iodine-131 medicine attached to the inner wall. The patient turns on the control switch 6 and sucks the saline after the flushing of the tube through the suction nozzle 7. The iodine-131 rinsed off circulates with the saline, and the patient sucks through the suction nozzle 7 to achieve airtight drug administration, prevent the medicine from being exposed and volatilized in the air, reduce the leakage of the medicine, reduce the risk of radiation leakage, and ensure the safety of the medical staff.
[0024] During iodine-131 isotope therapy, to prevent direct radiation exposure to medical staff, medication cannot be administered face-to-face, as this increases the risk of radiation exposure. Instead, medication can only be administered through a transfer window in a fume hood, separating medical staff and patients. An extension tube 4 connects the two ends of the window, with a length suitable for the iodine window design of nuclear medicine uniforms. Extension tube 4 carries the medication and connects the two ends of the window. Medical staff administer the medication within the window fume hood, while the patient drinks the medication smoothly at the other end of the window through a mouthpiece 7 at the end of extension tube 4, achieving the goal of contactless treatment, effectively reducing the risk to medical staff during the treatment process.
[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A radiopharmaceutical injection device, characterized in that: include: A three-way stopcock valve (3) having an input end A, an input end B and an output end C; The liquid outlet of syringe a (1) is connected to the input end B of the three-way stopcock (3); The liquid outlet of syringe b (2) is connected to the input end A of the three-way stopcock (3); An extension tube (4) has one end connected to the output end C of the three-way stopcock (3) and the other end connected to a suction nozzle (7). The extension tube (4) is connected to a balloon (5). A control switch (6) for controlling the on / off of the extension tube (4) is provided between the balloon (5) and the suction nozzle (7).
2. A radiopharmaceutical injection device according to claim 1, characterized in that: Syringe a (1) is a 10 ml sterile needle-less syringe, syringe b (2) is a 20 ml sterile needle-less syringe, and the balloon (5) has a capacity of 15-20 ml.
3. A radiopharmaceutical injection device according to claim 1, characterized in that: The extension tube (4) is a PVC sterile food grade silicone hose.
4. A radiopharmaceutical injection device according to claim 3, characterized in that: The extension tube (4) is 100 cm long, the distance between the balloon (5) and the output end c of the three-way stopcock (3) is 30 cm, and the distance between the control switch (6) and the suction nozzle (7) is 20 cm.
5. The radiopharmaceutical injection device according to claim 1, characterized in that: The suction nozzle (7) is made of silicone and has a "cross" hole.
6. The radiopharmaceutical injection device according to claim 5, characterized in that: The suction nozzle (7) is connected to a suction nozzle cover capable of covering the suction nozzle (7).