Radiopharmaceutical subpackage injection device

Abstract

The utility model relates to the field of radiopharmaceutical tools, in particular to a radiopharmaceutical split charging and injecting device. The device comprises an injection assembly, a sample feeding assembly, a buffer assembly and a flushing assembly. The injection assembly is connected with an injection catheter, the injection catheter is provided with at least one first branch pipe, at least one second branch pipe and at least one third branch pipe in a communicating mode. The sample feeding set is detachably connected to the first branch pipe and used for conveying radiopharmaceuticals into the injection assembly; the buffer assembly is detachably connected to the second branch pipe and used for maintaining air pressure balance inside and outside the injection catheter. The flushing assembly is detachably connected to the third branch pipe and used for injecting and flushing the radiopharmaceutical in the injection assembly. According to the utility model, the plurality of control switches are orderly matched with the ball screw sliding table, so that the sub-packaging and injection of radiopharmaceuticals are completed. The direct contact between the medical personnel and the radiopharmaceutical is avoided, and the safety of the medical personnel in the radiopharmaceutical treatment is protected.

Description

Technical Field

[0001] The utility model relates to the field of radioactive drug appliances, in particular to a radioactive drug subpackaging and injection device. Background Art

[0002] With the continuous advancement of medical technology, radiopharmaceuticals are increasingly used in the fields of nuclear medicine and radiotherapy. Radiopharmaceuticals are mostly used in the treatment of malignant tumor cells. They have the advantages of strong applicability, simple treatment process and few side effects. However, due to the particularity of radiopharmaceuticals themselves, they increase the operational risks of medical staff during the treatment process and bring serious workload to medical staff.

[0003] At present, when medical staff perform subpackaging and injection of radioactive drugs, they usually need to manually operate the syringe to draw the drug solution from the drug container and then manually inject it into the patient's body. In this process, although medical staff will take various protective measures, it is still difficult to completely avoid contact with the radioactive drug solution during manual operation, thereby increasing their risk of radiation exposure. This seriously increases the psychological burden of medical staff and even affects their operating procedures, which in turn affects the therapeutic effect of radioactive drugs. Utility Model Content

[0004] The utility model aims to provide a radioactive drug packaging and injection device to address the above-mentioned problems and shortcomings, which can avoid direct contact between medical personnel and radioactive drugs during packaging and injection of radioactive drugs, thereby improving the safety of medical personnel during operation.

[0005] To achieve the above purpose, the technical solution adopted is:

[0006] The utility model provides a radioactive drug packaging and injection device, comprising:

[0007] An injection assembly, wherein the injection assembly is connected to an injection catheter, and the injection catheter is connected to a first branch tube, a second branch tube, and a third branch tube, and the first branch tube is at least one;

[0008] a sample delivery assembly, which is detachably connected to the first branch tube and is used to deliver radioactive drugs to the injection assembly;

[0009] A buffer assembly, which is detachably connected to the second branch pipe and is used to maintain the air pressure balance inside and outside the injection catheter;

[0010] and a flushing assembly, which is detachably connected to the third branch pipe and is used for injecting and flushing the radioactive drug in the injection assembly.

[0011] According to the radioactive drug dispensing and injection device of the present utility model, further, the injection assembly includes an injection needle; a first switch is provided at one end of the injection catheter close to the injection needle, and the first switch is used to control the conduction and disconnection of the injection catheter.

[0012] According to the radioactive drug dispensing and injection device of the present utility model, further, the injection assembly further includes a first ball screw slide table, the injection needle is fixedly connected to the slider of the first ball screw slide table, and the first ball screw slide table drives the injection needle to move left and right in the horizontal direction.

[0013] According to the radioactive drug dispensing and injection device of the present utility model, further, the sample feeding assembly includes a sample feeding syringe, a connecting tube and a sample feeding needle, the sample feeding syringe is fixedly connected and communicated with the sample feeding needle through the connecting tube, and radioactive drugs are contained in the sample feeding syringe; a second switch for controlling the conduction or disconnection of the sample feeding syringe and the sample feeding needle is provided on the connecting tube.

[0014] According to the radioactive drug dispensing and injection device of the present utility model, further, the sample feeding assembly further includes a second ball screw slide table, the sample feeding needle is fixedly connected to the slider of the second ball screw slide table; the second ball screw slide table drives the sample feeding needle to pierce into the rubber cap on the top of the first branch pipe or pull out from the rubber cap on the top of the first branch pipe.

[0015] According to the radioactive drug dispensing and injection device of the present utility model, further, the buffer assembly includes a buffer syringe, the buffer syringe is detachably connected to the second branch pipe, and a third switch for controlling the conduction or disconnection of the buffer syringe and the injection catheter is provided on the second branch pipe.

[0016] According to the radioactive drug dispensing and injection device of the present utility model, further, the flushing assembly includes a flushing syringe, the flushing syringe is detachably connected to the third branch pipe, and a fourth switch for controlling the conduction or disconnection of the flushing syringe and the injection catheter is provided on the third branch pipe.

[0017] According to the radioactive drug dispensing and injection device of the present utility model, further, the third branch pipe is in an inverted U shape.

[0018] According to the radioactive drug dispensing and injection device of the present utility model, further, flushing saline is contained in the flushing syringe.

[0019] The beneficial effects obtained by adopting the above technical solutions are:

[0020] The overall structure of the utility model is simple and ingeniously designed. Through the orderly cooperation of multiple control switches and a ball screw slide table, this application completes the dispensing of radioactive drugs and injects the radioactive drugs into the patient's body, avoiding direct contact between medical staff and radioactive drugs and protecting the safety of medical staff during the treatment with radioactive drugs.

[0021] There can be multiple first branch pipes in the utility model to achieve one-to-one connection between multiple sample delivery assemblies and the first branch pipes. This can not only orderly inject the radioactive drugs in multiple sample delivery syringes into the injection catheter to ensure the efficacy of the radioactive drugs, but also prevent the rubber cap from being damaged due to multiple sample delivery needles piercing into the same rubber cap, thereby affecting the sealing performance of the entire device.

[0022] When the utility model performs the dispensing process of radioactive drugs, the first and fourth switches are in the closed state, and the second and third switches are in the open state. When the sample delivery assembly injects radioactive drugs into the injection catheter, the second piston rod of the buffer syringe will move outwards, keeping the air pressure in the injection catheter always equal to the external ambient air pressure, preventing the air pressure in the injection catheter from being too high during the dispensing process and causing it to rupture, and thus avoiding the leakage of radioactive drugs in the injection catheter.

[0023] In addition, when the utility model performs the injection process of radioactive drugs, the inverted U-shaped structure of the third branch pipe makes the flushing saline only exist in one vertical pipe and will not cross the corner and enter the other vertical pipe connected to the injection catheter, avoiding the mixing of the flushing saline in the flushing syringe and the radioactive drugs and preventing the radioactive drugs from being contaminated by the flushing saline and affecting the efficacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings of the embodiments of the utility model will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the utility model and do not limit all embodiments of the utility model thereto.

[0025] Figure 1 is a schematic structural diagram of the radioactive drug dispensing and injection device according to an embodiment of the utility model;

[0026] Figure 2 is a schematic structural diagram of the injection assembly of the radioactive drug dispensing and injection device according to an embodiment of the utility model;

[0027] Figure 3 is a schematic structural diagram of the sample delivery assembly of the radioactive drug dispensing and injection device according to an embodiment of the utility model;

[0028] Figure 4 is a schematic structural diagram of the buffer assembly of the radioactive drug dispensing and injection device according to an embodiment of the utility model;

[0029] Figure 5 This is a schematic structural diagram of the flushing assembly of the radioactive drug dispensing and injection device according to an embodiment of the present invention.

[0030] The meanings represented by the serial numbers in the figure are as follows:

[0031] 100. Injection assembly, 110. Injection catheter, 120. Injection needle, 130. First ball screw slide, 140. First switch, 150. First branch pipe, 160. Rubber cap, 170. Second branch pipe, 180. Third branch pipe;

[0032] 200. Sample delivery assembly, 210. Sample delivery syringe, 211. First piston rod, 220. Connecting pipe, 230. Second switch, 240. Second ball screw slide, 250. Sample delivery needle;

[0033] 300. Buffer assembly, 310. Buffer syringe, 311. Second piston rod, 320. Third switch;

[0034] 400. Flushing assembly, 410. Flushing syringe, 411. Third piston rod, 420. Fourth switch. Detailed implementation manners

[0035] In the following, the exemplary solutions of the embodiments of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the art in the relevant field.

[0036] As Figure 1 shown, the radioactive drug dispensing and injection device of this embodiment includes an injection assembly 100, a sample delivery assembly 200, a buffer assembly 300, and a flushing assembly 400. The injection assembly 100 is connected with an injection catheter 110, and a first branch pipe 150, a second branch pipe 170, and a third branch pipe 180 are communicatively provided on the injection catheter 110, and there is at least one first branch pipe 150. The sample delivery assembly 200 is detachably connected to the first branch pipe 150 and is used to deliver radioactive drugs into the injection assembly 100. The buffer assembly 300 is detachably connected to the second branch pipe 170 and is used to maintain the air pressure balance inside and outside the injection catheter 110. The flushing assembly 200 is detachably connected to the third branch pipe 180 and is used to inject and flush the radioactive drugs in the injection assembly 100.

[0037] As Figure 1 and Figure 2 shown, the injection assembly 100 includes an injection needle 120. A first switch 140 is provided at one end of the injection catheter 110 close to the injection needle 120, and the first switch 140 is used to control the conduction and disconnection of the injection catheter 110.

[0038] The injection assembly 100 further includes a first ball screw slide 130. The injection needle 120 is fixedly connected to the slider of the first ball screw slide 130. The first ball screw slide 130 drives the injection needle 120 to move left and right in the horizontal direction. Before and after injecting the radioactive drug, the first ball screw slide 130 can drive the injection needle 120 to insert into the indwelling needle of the patient, or pull out the injection needle 120 from the indwelling needle.

[0039] As Figure 1 and Figure 3 shown, the sample delivery assembly 200 includes a sample delivery syringe 210, a connecting tube 220, and a sample delivery needle 250. The sample delivery syringe 210 is fixedly connected and communicated with the sample delivery needle 250 through the connecting tube 220, and the connecting tube 220 is detachably connected to both the sample delivery syringe 210 and the sample delivery needle 250. The radioactive drug is contained in the sample delivery syringe 220.

[0040] A second switch 230 for controlling the conduction or disconnection of the sample delivery syringe 210 and the sample delivery needle 250 is provided on the connecting tube 220.

[0041] Furthermore, the connecting tube 220 is a flexible tube and is arranged in an S shape, reducing the space it occupies while ensuring the length of the connecting tube 220.

[0042] The sample delivery assembly 200 further includes a second ball screw slide 240. The sample delivery needle 250 is fixedly connected to the slider of the second ball screw slide 240. Before and after the radioactive drug dispensing process, the second ball screw slide 240 drives the sample delivery needle 250 to pierce into the rubber cap 160 on the top of the first branch tube 150, or pull out the sample delivery needle 250 from the rubber cap 160.

[0043] Optionally, the first ball screw slide 130 and the second ball screw slide 240 used in this device are electric slides or pneumatic slides.

[0044] As Figure 1 and Figure 4 shown, the buffer assembly 300 includes a buffer syringe 310, and the buffer syringe 310 is detachably connected to the second branch tube 170. A third switch 320 for controlling the conduction or disconnection of the buffer syringe 310 and the injection catheter 110 is provided on the second branch tube 170.

[0045] Furthermore, when in the initial state, the second piston rod 311 of the buffer syringe 310 is located at the bottom of the buffer syringe 310.

[0046] As Figure 1 and Figure 5As shown, the flushing assembly 400 includes a flushing syringe 410, and the flushing syringe 410 is detachably connected to the third branch pipe 180. A fourth switch 420 for controlling the conduction or disconnection of the flushing syringe 310 and the injection catheter 110 is provided on the third branch pipe 180.

[0047] As Figure 5 shown, the third branch pipe 180 is in an inverted U shape and can separate the liquid in the pipe.

[0048] The flushing syringe 410 contains flushing saline.

[0049] In this device, the injection catheter and the connecting pipe used are both made of PP pipe or PEEK medical polymer material.

[0050] Optionally, the first switch 140, the second switch 230, the third switch 320, and the fourth switch 420 used in this device are solenoid valves or electric valves.

[0051] Furthermore, the injection assembly 100, the buffer assembly 300, and the flushing assembly 400 in this utility model are all disposable components. After each radioactive drug injection is completed, these three components need to be flushed and recycled. Prevent these three components from being reused to ensure that each set of injection assembly 100, buffer assembly 300, and flushing assembly 400 is only used for the radioactive treatment of one patient.

[0052] When performing the sub-packaging process: close the first switch 140 and the fourth switch 420, open the second switch 230 and the third switch 320, and sequentially input various radioactive drugs to be sub-packaged into the injection catheter 110; at this time, the second piston rod 311 of the buffer syringe 310 moves outward to keep the air pressure in the injection catheter 110 balanced with the external environmental air pressure until the radioactive liquid medicine is injected completely. Then close the second switch 230 and the third switch 320, and pull out the sampling needle 250 from the rubber cap 160 of the first branch pipe 150.

[0053] Furthermore, the volume of the buffer syringe 310 is V x , and the volumes of the radioactive drugs to be sub-packaged by multiple sampling assemblies 200 are V1, V2 ··· V n , respectively. Then it is necessary to That is, the total volume of the radioactive drugs to be sub-packaged is less than the volume of the buffer syringe 310. Ensure that when all the radioactive drugs to be sub-packaged are input into the injection catheter 110, the buffer syringe 310 has enough space for the second piston rod 311 to move towards its top to prevent the second piston rod 311 from popping out of the buffer syringe 310 and causing radioactive drug leakage.

[0054] When performing the injection process: close the second switch 230 and the third switch 320, and open the first switch 140 and the fourth switch 420. After inserting the injection needle 120 into the indwelling needle of the patient, gently push the third piston rod 411 of the flushing syringe 410 to make the radioactive drug in the injection catheter 110 enter the patient's body. Then close the first switch 140 and pull out the injection needle 120 from the indwelling needle.

[0055] Furthermore, as Figure 2 shown, the volume of the vertical tube part on the right side of the inverted U-shaped third branch tube 180 is V y , then it is necessary That is, the total volume of the radioactive drug to be dispensed is less than the volume of the vertical part on the right side of the third branch tube 180, ensuring that during the process of gently pushing the third piston rod 411, when V y volume of flushing saline enters the third branch tube 180 from the flushing syringe 410, all the radioactive drugs will be injected into the patient's body.

[0056] In addition, during the process of gently pushing the third piston rod 411, the V y volume of flushing saline only exists in the vertical tube part on the right side of the inverted U-shaped third branch tube 180, preventing the flushing saline from mixing with the radioactive drug in the injection catheter 110 and avoiding the radioactive drug being contaminated by the flushing saline.

[0057] The usage method of the radioactive drug dispensing and injection device of the present utility model includes the following steps:

[0058] S1. Control the first switch 140, the second switch 230, the third switch 320, and the fourth switch 420 to be in the closed state;

[0059] S2. Start the second ball screw slide 240, and the movement of the slider drives the sampling needle 250 to pierce into the rubber cap 160 at the top of the first branch tube 150; then install the buffer syringe 310 and the flushing syringe 410 onto the second branch tube 170 and the third branch tube 180 respectively;

[0060] S3. Open the second switch 230 and the third switch 320, and push the first piston rod 211 to inject the radioactive drug in the sampling syringe 210 into the injection catheter 110; after the injection is completed, close the second switch 230 and the third switch 320, and pull out the sampling needle 250 from the rubber cap 160; thus, the dispensing of the radioactive drug is completed;

[0061] S4. Transfer the injection assembly 100, the buffer assembly 300, and the flushing assembly 400 to the patient together, start the first ball screw slide 130, and the slider drives the injection needle 120 to insert into the indwelling needle of the patient;

[0062] S5. Turn on the first switch 140 and the fourth switch 420, gently push the third piston rod 411, flush the air in the brine extrusion tube to make it flow, and the air pushes the radioactive drug in the injection catheter 110 into the patient's body. At this time, ensure that the flushing brine does not enter the injection catheter 110; after the injection is completed, turn off the first switch 140 and pull out the injection needle 120 from the patient's indwelling needle.

[0063] Thus, the injection of the radioactive drug is completed.

[0064] S6. After the injection of the radioactive drug is completed, transfer the injection assembly 100, the buffer assembly 300, and the flushing assembly 400 to the cleaning room together; turn on the first switch 140, continue to push the third piston rod 411, and continuously inject the flushing brine into the injection catheter 100 until the residual radioactive drug in the injection catheter 100 is completely discharged from the injection needle 120.

[0065] Since the drug solution used has radioactive characteristics, all actions of each component during the entire dispensing, injection, and cleaning processes are completely controlled automatically by the mechanical structure. As for the specific design of the control structure, this application does not elaborate in detail, and those skilled in the relevant art can select and configure it according to the actual situation.

[0066] The technical solution of the present utility model has been described exemplarily above in conjunction with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

[0067] In the description of the present utility model, it should be understood that the expressions "first" and "second" are used to describe each element of the present utility model, and do not represent any limitation of order, quantity, or importance, but are only used to distinguish one component from another.

[0068] It should be noted that when there is an expression that one element is "connected", "coupled", or "linked" to another element, it may mean that they are directly connected, coupled, or linked, but it should be understood that there may be an intermediate element between them; that is, it covers the positional relationship of direct connection and indirect connection.

[0069] It should be noted that the use of similar words such as "a" or "one" does not necessarily indicate a quantity limitation. Words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0070] It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, which are for the convenience of describing the present utility model, rather than the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0071] The preferred embodiments for implementing the present utility model have been described in detail above, but it should be understood that the role of these embodiments is only for illustration, rather than limiting the scope, application or construction of the present utility model in any way. The protection scope of the present utility model is defined by the appended claims and their equivalents. Those of ordinary skill in the art can make many changes to the foregoing embodiments under the teaching of the present utility model, and these changes all fall within the protection scope of the present utility model.

Claims

1. A radioactive drug dispensing and injection device, characterized in that, Comprising: An injection assembly, the injection assembly is connected with an injection catheter, and a first branch pipe, a second branch pipe and a third branch pipe are communicatedly arranged on the injection catheter, and there is at least one first branch pipe; A sample feeding assembly, which is detachably connected to the first branch pipe and is used for conveying radioactive drugs into the injection assembly; A buffer assembly, which is detachably connected to the second branch pipe and is used for maintaining the air pressure balance inside and outside the injection catheter; And a flushing assembly, which is detachably connected to the third branch pipe and is used for injecting and flushing the radioactive drugs in the injection assembly.

2. The radioactive drug dispensing and injection device according to claim 1, wherein The injection assembly includes an injection needle; a first switch is arranged at one end of the injection catheter close to the injection needle, and the first switch is used for controlling the conduction and disconnection of the injection catheter.

3. The radioactive drug dispensing and injection device according to claim 2, wherein, The injection assembly further includes a first ball screw slide table, the injection needle is fixedly connected to the slider of the first ball screw slide table, and the first ball screw slide table drives the injection needle to move left and right in the horizontal direction.

4. The radioactive drug dispensing and injection device according to claim 1, characterized in that, The sample feeding assembly includes a sample feeding syringe, a connecting pipe and a sample feeding needle, the sample feeding syringe is fixedly communicated with the sample feeding needle through the connecting pipe, and radioactive drugs are contained in the sample feeding syringe; A second switch for controlling the conduction or disconnection of the sample feeding syringe and the sample feeding needle is arranged on the connecting pipe.

5. The radioactive drug dispensing and injection device according to claim 4, wherein The sample feeding assembly further includes a second ball screw slide table, and the sample feeding needle is fixedly connected to the slider of the second ball screw slide table; The second ball screw slide table drives the sample feeding needle to pierce into or pull out from the rubber cap at the top of the first branch pipe.

6. The radioactive drug dispensing and injection device according to claim 1, wherein The buffer assembly includes a buffer syringe, the buffer syringe is detachably connected to the second branch pipe, and a third switch for controlling the conduction or disconnection of the buffer syringe and the injection catheter is arranged on the second branch pipe.

7. The radioactive drug dispensing and injection device according to claim 1, characterized in that, The flushing assembly includes a flushing syringe, the flushing syringe is detachably connected to the third branch pipe, and a fourth switch for controlling the conduction or disconnection of the flushing syringe and the injection catheter is arranged on the third branch pipe.

8. The radioactive drug dispensing and injection device according to claim 7, characterized in that, The third branch pipe is in an inverted U shape.

9. The radioactive drug dispensing and injection device according to claim 7, wherein Flushing saline is contained in the flushing syringe.

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