Acupuncture mechanism and radiopharmaceutical subpackaging equipment comprising same
By designing a needle-punching mechanism, the mechanized extraction of radiopharmaceuticals was achieved, solving the problems of inconvenience in manual operation and radiation hazards, and ensuring complete extraction and safety of the drug solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 秦靖然
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-19
AI Technical Summary
In current technologies, the extraction of radiopharmaceuticals mainly relies on manual operation, which presents problems such as inconvenience and radiation hazards.
A needle-piercing mechanism was designed, including a sliding shaft, an operating handle, a needle holder base plate, and an elastic element. The needle-piercing action is achieved through mechanization. Combined with a needle-piercing limiting unit and a buffer mechanism, the needle-piercing position is ensured to be accurate and the bending of the needle and damage to the medicine bottle are avoided.
This technology enables mechanized extraction of radiopharmaceuticals, reduces radiation hazards for operators, ensures complete extraction of the drug solution, minimizes residues, and improves operational safety.
Smart Images

Figure CN224258229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap needle pricking technology, and in particular to a needle pricking mechanism and a radiopharmaceutical dispensing device including the same. Background Technology
[0002] Radiopharmaceuticals are typically packaged in bulk vials for clinical use, and the bulk drug is extracted from these vials through aspiration. Currently, the extraction of radiopharmaceuticals in clinical practice is mostly done manually. During the actual operation, personnel wear protective suits, which is not only very inconvenient but also poses a certain degree of radiation hazard.
[0003] Based on this, this application creates a new acupuncture mechanism and a radiopharmaceutical dispensing device including it, enabling mechanized acupuncture actions, providing favorable support for subsequent radiopharmaceutical dispensing steps, and truly reducing the harm of radiopharmaceuticals to medical personnel. Utility Model Content
[0004] The technical problem to be solved by this invention is to provide an acupuncture mechanism that enables mechanized acupuncture action, providing favorable support for subsequent radiopharmaceutical dispensing steps and truly reducing the harm of radiopharmaceuticals to medical personnel.
[0005] To solve the above-mentioned technical problems, this utility model provides a needle-piercing mechanism, including a sliding shaft, an operating handle that slides up and down along the sliding shaft, and a needle holder base plate. An elastic element is also sleeved on the sliding shaft. The upper end of the elastic element is connected to the operating handle, and the lower end of the elastic element is connected to the needle holder base plate. The needle holder base plate is provided with a first buckle for fixing the extraction needle. The extraction needle moves up and down with the needle holder base plate under the action of the operating handle, which can pierce the soft stopper of the medicine bottle.
[0006] In a further improvement, the needle holder base plate is also provided with a second buckle for fixing the ventilation needle, and the needle tips of both the extraction needle and the ventilation needle are set vertically downward.
[0007] A further improvement includes an outer casing, on the side wall of which is provided a vertical groove for the operating handle to extend, and the upper end of the vertical groove is provided with a locking element for locking the operating handle.
[0008] In a further improvement, the outer end of the operating handle is provided with a telescopic handle sleeve. The telescopic handle sleeve retracts in its natural state and cooperates with the locking member to fix the operating handle. When the telescopic handle sleeve is pulled out under the action of external force, it can disengage from the locking member and drive the operating handle to slide up and down.
[0009] In a further improvement, the outer casing also includes a needle-punching limiting unit. The needle-punching limiting unit includes a needle-punching limiting rod fixed on the needle holder base plate and a limiting hole provided at the bottom of the outer casing. When the needle-punching limiting rod moves downward with the needle holder base plate, it can be inserted into the limiting hole to achieve needle-punching positioning.
[0010] As a further improvement of this utility model, this utility model also provides a radiopharmaceutical dispensing device. This device includes the aforementioned needle-piercing mechanism, used to puncture the soft stopper of the original solution bottle in the radiopharmaceutical dispensing device, thereby extracting the original solution.
[0011] In a further improvement, when the needle-punching mechanism is at its lowest position, the tip of the extraction needle touches the bottom of the original liquid bottle, and the tip of the venting needle is above the surface of the original liquid in the original liquid bottle.
[0012] With this design, the present invention has at least the following advantages:
[0013] 1. The needle-piercing mechanism of this utility model, by providing an operating handle and a needle holder base plate on a sliding shaft, and setting an elastic element between the operating handle and the needle holder base plate, can cleverly provide a buffer for the extraction needle to pierce the soft stopper of the medicine bottle, and also provide a buffer when the extraction needle contacts the bottom of the medicine bottle, avoiding bending of the extraction needle and damage to the bottom of the medicine bottle, maximizing the complete extraction of the medicine liquid inside the medicine bottle, meeting the extraction requirements, reducing radiation residue, and reducing harm to the operator.
[0014] 2. Furthermore, the needle-piercing limiting unit ensures the positioning of the needle-piercing position on the medicine bottle and locks the needle-piercing position.
[0015] 3. The radiopharmaceutical dispensing equipment of this utility model, by setting the needle-punching mechanism, can realize the mechanized puncture of the soft stopper of the original liquid bottle, so as to complete the extraction of the original liquid in the original liquid bottle within the shell. This allows the radiopharmaceutical to be directly used for drug dispensing while it is inside the shell, greatly reducing radiation hazards. Attached Figure Description
[0016] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is a schematic diagram of the acupuncture mechanism of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of the acupuncture mechanism in the radiopharmaceutical dispensing equipment of this utility model, before it pierces the original liquid bottle.
[0019] Figure 3This is a schematic diagram of the needle-piercing mechanism inserting into the original liquid bottle in the radiopharmaceutical dispensing equipment of this utility model. Detailed Implementation
[0020] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0021] See attached document Figure 1 As shown, the acupuncture mechanism in this embodiment includes a sliding shaft 1, an operating handle 2 that slides up and down along the sliding shaft 1, and a needle holder base plate 3. An elastic element 4 is also sleeved on the sliding shaft 1. The upper end of the elastic element 4 is connected to the operating handle 2, and the lower end of the elastic element 4 is connected to the needle holder base plate 3. The needle holder base plate 3 is provided with a first latch 31 for fixing the extraction needle 11. Under the action of the operating handle 2, the extraction needle 11 can pierce the soft stopper of the medicine bottle along with the needle holder base plate 3. The elastic element 4 cleverly provides cushioning for the extraction needle 11 to pierce the soft stopper of the medicine bottle, and also provides cushioning when the extraction needle 11 contacts the bottom of the medicine bottle, avoiding bending of the extraction needle and damage to the bottom of the medicine bottle, maximizing the complete extraction of the medicine liquid inside the medicine bottle, meeting extraction requirements, reducing radiation residue, and minimizing harm to the operator.
[0022] In this embodiment, the needle holder base plate 3 is further provided with a second buckle 32 for fixing the venting needle 12, and the needle tips of both the extraction needle 11 and the venting needle 12 are vertically downward. Furthermore, the tip of the extraction needle 11 is lower than the tip of the venting needle 12, meaning the extraction needle 11 is below the liquid surface of the medicine bottle, and the venting needle 12 is above the liquid surface, thus satisfying the conditions for extracting the medicine.
[0023] See attached document Figure 2 and 3 As shown, the radiopharmaceutical dispensing equipment in this embodiment includes the aforementioned needle-piercing mechanism, which is used to pierce the soft stopper 20 of the original liquid bottle in the radiopharmaceutical dispensing equipment to complete the extraction of the original liquid.
[0024] Specifically, the needle-piercing mechanism is located inside the outer casing of the radiopharmaceutical dispensing equipment. The side wall of the outer casing is provided with a vertical groove for the operating handle 2 to extend out, and the upper end of the vertical groove is provided with a locking member 5 for locking the operating handle, so as to ensure that the operating handle 2 is locked in the upper part of the vertical groove when it is not pierced.
[0025] Furthermore, the outer end of the operating handle 2 is provided with a telescopic handle sleeve 21. In its natural state, the telescopic handle sleeve 21 retracts and cooperates with the locking member 5 to fix the operating handle 2. When the telescopic handle sleeve 21 is pulled out under external force, it disengages from the locking member 5, causing the operating handle 2 to slide up and down. The locking member 5 can adopt any existing locking structure. The telescopic handle sleeve 21 can adopt an existing elastic telescopic structure, which simply needs to remain in the retracted state in its natural state.
[0026] To ensure accurate needle positioning, the radiopharmaceutical dispensing device in this embodiment also includes a needle positioning unit inside its outer casing. The needle positioning unit includes a needle positioning rod 6 fixed to the needle holder base plate 3 and a positioning hole 7 located at the bottom of the outer casing. When the needle positioning rod 6 moves downwards with the needle holder base plate 3, it can be inserted into the positioning hole 7, ensuring that the needle-piercing mechanism is aligned with the soft stopper 20 of the original solution bottle. Alternatively, the positioning hole 7 can be located on the movable base 30 for mounting the original solution bottle 10. In this way, the cooperation between the needle positioning rod 6 and the positioning hole 7 also ensures that the position of the original solution bottle 10 is locked, guaranteeing needle precision and a high success rate.
[0027] In order to reduce drug residue, when the acupuncture mechanism is at its lowest position, the tip of the extraction needle 11 touches the bottom of the original liquid bottle 10, and the tip of the ventilation needle 12 is above the liquid surface of the original liquid in the original liquid bottle. This maximizes the complete extraction of the original liquid inside the original liquid bottle, meets the extraction requirements, reduces radiation residue, and reduces harm to operators.
[0028] This novel needle-piercing mechanism utilizes the elasticity of a flexible element to provide cushioning for the extraction needle to pierce the soft stopper of the medicine vial. It also cushions the needle when it contacts the bottom of the vial, preventing bending and damage to the bottom. This maximizes the complete extraction of the medicine from the vial, meeting extraction requirements, reducing radiation residue, and minimizing harm to operators. When used in radiopharmaceutical dispensing equipment, this mechanism easily and mechanically pierces the soft stopper of the original solution vial, allowing for complete extraction of the original solution within the housing. This enables the radiopharmaceutical to be directly used for dispensing while still inside the housing, significantly reducing radiation hazards.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.
Claims
1. A needle-punching mechanism, characterized in that, The device includes a sliding shaft, an operating handle that slides up and down along the sliding shaft, and a needle holder base plate. An elastic element is also sleeved on the sliding shaft. The upper end of the elastic element is connected to the operating handle, and the lower end of the elastic element is connected to the needle holder base plate. The needle holder base plate is provided with a first buckle for fixing the extraction needle. The extraction needle moves up and down with the needle holder base plate under the action of the operating handle, which can puncture the soft stopper of the medicine bottle.
2. The acupuncture mechanism according to claim 1, characterized in that, The needle holder base plate is also provided with a second buckle for fixing the ventilation needle, and the needle tips of both the extraction needle and the ventilation needle are set vertically downward.
3. The acupuncture mechanism according to claim 2, characterized in that, It also includes an outer casing, on the side wall of which is provided a vertical groove for the operating handle to extend out, and the upper end of the vertical groove is provided with a locking element for locking the operating handle.
4. The acupuncture mechanism according to claim 3, characterized in that, The outer end of the operating handle is provided with a telescopic handle sleeve. The telescopic handle sleeve retracts in its natural state and cooperates with the locking member to fix the operating handle. When the telescopic handle sleeve is pulled out under the action of external force, it can disengage from the locking member and drive the operating handle to slide up and down.
5. The acupuncture mechanism according to claim 3, characterized in that, The outer casing also includes a needle-punching limiting unit, which includes a needle-punching limiting rod fixed on the needle holder base plate and a limiting hole provided at the bottom of the outer casing. When the needle-punching limiting rod moves downward with the needle holder base plate, it can be inserted into the limiting hole to achieve needle-punching positioning.
6. A radiopharmaceutical dispensing device, characterized in that, The device includes the needle-piercing mechanism described in any one of claims 1 to 5, used to pierce the soft stopper of the original liquid bottle in the radiopharmaceutical dispensing equipment.
7. The radiopharmaceutical dispensing equipment according to claim 6, characterized in that, When the needle-punching mechanism is at its lowest position, the tip of the extraction needle touches the bottom of the original liquid bottle, and the tip of the venting needle is above the surface of the original liquid in the original liquid bottle.