A radioactive liquid medicine sub-packaging manual precision metering needle tube

Abstract

This utility model discloses a manual precision metering syringe for dispensing radioactive drugs, comprising a syringe body and a lead sleeve. By employing a retaining ring and a positioning strip, the operator can insert a limiting rod into the corresponding positioning hole according to the required amount of radioactive drug to be dispensed. This limits the height that the guide strip on the pull rod surface can move, thus fixing the amount of drug that the piston can draw during movement. Furthermore, since the amount of liquid drawn varies, the insertion depth of the syringe will also differ. By sliding the retaining ring and locking it with a fastening screw, the retaining ring can be fixed at the mouth of the drug bottle, thus limiting the amount of drug inserted. This eliminates the need for prolonged gripping and control of the syringe, effectively improving overall usability and reducing operator workload. It offers advantages such as precise metering, effortless operation, and limited extraction.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically to a manual precision metering syringe for dispensing radioactive drug solutions. Background Technology

[0002] Radiopharmaceuticals are radiolabeled compounds that can be safely used to diagnose or treat human diseases. They include inorganic, organic, bioactive substances and biological products containing radionuclides. They achieve diagnostic or therapeutic purposes by selectively accumulating radionuclides in tissues and organs or participating in physiological, biochemical and other metabolic processes.

[0003] The existing public technology application number is CN202221116925.9, which discloses an extraction device and equipment for radioactive liquid. The device is configured to extract radioactive liquid from a storage bottle. The extraction device includes: a puncture needle tube, which is a hollow tube with a first end and a second end opposite to each other. The first end has a needle tip, which is configured to puncture the rubber stopper of the storage bottle along a first direction, wherein the top surface of the rubber stopper of the storage bottle has a first angle with the first direction; and a polymer material tube, which is a hollow tube configured to enter the puncture needle tube from the second end and exit from the first end of the puncture needle tube, extending along the first direction to the edge of the inner surface of the bottom wall of the storage bottle to contact the lowest point of the liquid in the storage bottle to extract the radioactive liquid.

[0004] Existing radiopharmaceuticals are dispensed and released using syringes. To reduce the impact of radiation from the radiopharmaceutical solution on the human body, a lead sleeve is placed on the outside of the syringe for protection. However, this makes it impossible for personnel to see the scale values ​​on the syringe, thus affecting the accuracy of dispensing. Personnel need to control the extraction volume based on experience, which reduces the practicality of the structure. At the same time, personnel need to hold the syringe for a long time during dispensing, which increases the labor intensity and is not conducive to more labor-saving use. Overall, the use effect is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a manual precision metering syringe for dispensing radioactive pharmaceutical solutions, which has the advantages of accurate metering, labor-saving operation, and limited extraction, thereby solving the problems mentioned in the background technology.

[0007] To achieve the aforementioned advantages of accurate measurement, labor-saving operation, and extraction limit, the specific technical solution adopted by this utility model is as follows: A manual precision metering syringe for dispensing radioactive pharmaceutical solutions includes a syringe body and a lead sleeve. A top ring is provided on one end of the syringe body. Positioning strips are symmetrically installed on both sides of the top of the top ring. Guide strips are slidably connected inside the positioning strips. A pull rod is installed between the guide strips. Several sets of limiting holes are evenly opened on the surface of the positioning strips. Limiting rods are inserted into the limiting holes. Several sets of positioning marks are symmetrically and evenly arranged on the surface of the positioning strips on the sides of the limiting holes.

[0008] Furthermore, the needle body is wrapped with a lead sleeve, and a retaining ring is slidably connected to the surface of the lead sleeve. Several sets of fastening screws are symmetrically threaded to the two sides of the retaining ring.

[0009] Furthermore, a needle is installed at one end of the syringe body.

[0010] Furthermore, the pull rod is located inside the needle tube body.

[0011] Furthermore, a piston is connected to one end of the pull rod.

[0012] Furthermore, a guide groove is provided inside the positioning strip.

[0013] Furthermore, a groove is provided on the surface of the lead sleeve for the sliding of the retaining ring.

[0014] Furthermore, the groove on the surface of the lead sleeve is provided with a threaded hole for fastening the screw.

[0015] Compared with the prior art, this utility model provides a manual precision metering syringe for dispensing radioactive drugs, which has the following beneficial effects: This invention employs a retaining ring and a positioning strip. Personnel can insert the limiting rod into the corresponding positioning hole according to the required amount of radiation drug to be dispensed. This limits the height the guide strip on the pull rod can move, thus fixing the amount of drug that the piston can extract. This eliminates the need for personnel to control the pull rod's movement based on their experience, effectively improving extraction accuracy. Furthermore, the insertion depth of the syringe varies depending on the amount of liquid being extracted. By sliding the retaining ring and locking it with the fastening screw, the retaining ring can be fixed in the designated position. This ensures that the syringe is wrapped around the bottle opening when inserted, further limiting the insertion depth. This eliminates the need for personnel to constantly grip and control the syringe, effectively improving overall usability and reducing labor intensity. It offers advantages such as accurate measurement, effortless operation, and limited extraction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a manual precision metering syringe for dispensing radioactive pharmaceutical solutions, as proposed in this utility model. Figure 2 This is a schematic diagram of the retaining ring of this utility model; Figure 3 This is a schematic diagram of the positioning strip of this utility model; Figure 4 This is a partial structural schematic diagram of the lead sleeve of this utility model.

[0018] In the picture: 1. Needle body; 2. Piston; 3. Lead sleeve; 4. Pull rod; 5. Top ring; 6. Positioning strip; 7. Guide strip; 8. Positioning scale; 9. Limiting hole; 10. Limiting rod; 11. Fastening screw; 12. Snap ring; 13. Needle. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a manual precision metering syringe for dispensing radioactive pharmaceutical solutions is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a manual precision metering syringe for dispensing radioactive pharmaceutical solutions according to an embodiment of this utility model includes a syringe body 1 and a lead sleeve 3. A top ring 5 is provided on one end of the surface of the syringe body 1. Positioning strips 6 are symmetrically installed on both sides of the top of the top ring 5. A guide strip 7 is slidably connected inside the positioning strip 6. A pull rod 4 is installed between the guide strips 7. Several sets of limiting holes 9 are evenly opened on the surface of the positioning strip 6. A limiting rod 10 is inserted into the limiting hole 9. Several sets of positioning scales 8 are symmetrically and evenly arranged on the side of the limiting hole 9 on the surface of the positioning strip 6. The limiting rod 10 is set to control the movement of the guide strip 7, thereby controlling the movement of the piston 2, thus controlling the amount of pharmaceutical solution extracted, facilitating more precise dispensing operations, and improving the overall use effect.

[0022] In one embodiment, the needle body 1 is wrapped with a lead sleeve 3, and a retaining ring 12 is slidably connected to the surface of the lead sleeve 3. Several sets of fastening screws 11 are symmetrically threaded on both sides of the retaining ring 12. The lead sleeve 3 is designed to weaken the radiation generated by the radioactive drug solution and ensure the safety of personnel.

[0023] In one embodiment, a needle 13 is installed at one end of the syringe body 1. The needle 13 is the basic structure of the syringe and will not be described in detail here.

[0024] In one embodiment, the lever 4 is located inside the syringe body 1. The lever 4 is the basic structure of the syringe and is used to move the piston 2, thereby realizing the extraction and release of the radiation drug solution.

[0025] In one embodiment, one end of the lever 4 is connected to the piston 2, which is the basic structure in the syringe and will not be described in detail here.

[0026] In one embodiment, a guide groove is provided inside the positioning strip 6. The guide groove is provided to facilitate the movement of the guide strip 7, thereby ensuring the stability of the pull rod 4.

[0027] In one embodiment, a slot is provided on the surface of the lead sleeve 3 for the circlip 12 to slide. The slot is provided to limit the movement trajectory of the circlip 12, thereby ensuring its stable movement.

[0028] In one embodiment, the groove on the surface of the lead sleeve 3 is provided with a threaded hole for the fastening screw 11. The threaded hole is provided to facilitate the tightening of the retaining ring 12 after adjustment, thereby ensuring its stable position on the lead sleeve 3, and better wrapping and fixing it with the mouth of the medicine bottle, improving the stability of the syringe and reducing the force required to fix the syringe, making it easier to use with less effort.

[0029] Working Principle: In actual use, personnel can insert the limiting rod 10 into the limiting hole 9 indicated by the corresponding positioning scale 8 according to the required amount of radiation drug to be dispensed. This limits the final height that the pull rod 4 can move, thus fixing the amount of drug that the piston 2 can extract during movement. Personnel do not need to control the movement of the pull rod 4 based on their own experience, effectively improving extraction accuracy and the practicality of the structure. Furthermore, since personnel do not need to expend significant effort to control the pull rod 4, it effectively reduces... The device reduces the labor intensity of personnel. Since the insertion depth of the syringe varies depending on the volume of liquid being drawn, the locking ring 12 can be fixed in a designated position by sliding it and locking it with the fastening screw 11. This allows the syringe to wrap around the mouth of the medicine bottle when it is inserted, thus limiting the insertion depth. This eliminates the need for personnel to constantly grip and control the syringe, effectively improving the overall usability and reducing the labor intensity of personnel. The device boasts advantages such as accurate measurement, effortless operation, and limited extraction depth.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radioactive liquid dispensing hand precision metering needle tube, comprising a needle tube body (1) and a lead sleeve (3), characterized in that, The needle body (1) has a top ring (5) on one end surface. Positioning strips (6) are symmetrically installed on both sides of the top of the top ring (5). A guide strip (7) is slidably connected inside the positioning strip (6). A pull rod (4) is installed between the guide strips (7). Several sets of limiting holes (9) are evenly opened on the surface of the positioning strip (6). A limiting rod (10) is inserted into the inside of the limiting hole (9). Several sets of positioning scales (8) are symmetrically and evenly arranged on the side of the limiting hole (9) on the surface of the positioning strip (6).

2. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, The needle body (1) is wrapped with a lead sleeve (3) on its outer periphery. A retaining ring (12) is slidably connected to the surface of the lead sleeve (3). Several sets of fastening screws (11) are symmetrically threaded on both sides of the retaining ring (12).

3. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, A needle (13) is installed at one end of the syringe body (1).

4. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, The pull rod (4) is located inside the needle body (1).

5. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, One end of the pull rod (4) is connected to a piston (2).

6. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, The positioning strip (6) has a guide groove inside.

7. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, The lead sleeve (3) has a groove on its surface for the sliding of the retaining ring (12).

8. The manually operated precision metering syringe for dispensing radioactive pharmaceutical solutions according to claim 1, characterized in that, The groove on the surface of the lead sleeve (3) is provided with a threaded hole for fastening the screw (11).

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