Syringe for thyroid imaging agent

Abstract

The utility model belongs to the technical field of medical injectors, and particularly relates to an injector for thyroid imaging agents. The injector comprises an injector body, the injector body comprises an injector barrel, a push rod and a needle head, an external thread is arranged on the lower portion of the tube wall of the injector barrel in the circumferential direction, and a labor-saving ring is installed at the position of the external thread of the injector barrel in a threaded mode; the needle head is detachably arranged at the bottom of the injector barrel through a clamping mechanism; and a conical transition section is arranged at the upper part of the needle head. By optimizing the structures of the needle head and the needle cylinder, friction force generated when the needle head is pulled out can be reduced, stable connection between the needle cylinder and the needle head is ensured, it is ensured that the needle cylinder and the needle head cannot fall off accidentally in the injection process, and meanwhile smooth separation is facilitated when the needle head and the needle cylinder are pulled out.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical syringes, and in particular relates to a syringe for a thyroid imaging agent. Background Art

[0002] As a basic medical tool, syringes have been continuously improved and innovated since their invention in the 1850s. With the development of medical technology, the materials, designs and functions of syringes have been gradually optimized to meet the needs of different medical scenarios. Thyroid imaging is a diagnostic method that observes the position, shape, size and functional status of the thyroid gland by introducing an imaging agent. The imaging agent needs to be accurately and safely injected into the patient's body to ensure the accuracy of the imaging results and the safety of the patient. However, existing medical syringes do have some shortcomings in function and use. For example, the needle is not easy to pull out after insertion. After the needle is inserted into the medicine bottle, it is sometimes difficult to pull out smoothly due to the influence of material friction. Or during use, especially in the case of forced extraction or uneven force, the needle is easy to slip or fall out of the syringe, which may not only contaminate the syringe, but also cause medical environmental pollution, and even pose a safety hazard to medical staff. Therefore, whether it is possible to provide a thyroid imaging agent syringe that reduces the friction when the needle is pulled out, reduces the operating errors caused by hand slipping during the extraction process, and ensures that the connection between the syringe and the needle is stable and easy to disassemble is a technical problem to be solved by the utility model. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a syringe for thyroid imaging agent. By optimizing the needle and syringe structure, the friction when the needle tip is pulled out can be reduced, and the connection between the syringe and the needle can be ensured to be firm, so as to ensure that it will not fall off accidentally during the injection process, while facilitating smooth separation when pulled out.

[0004] The utility model discloses a syringe for a thyroid imaging agent, comprising a syringe body, wherein the syringe body comprises a syringe barrel, a push rod and a needle, an outer thread is circumferentially arranged on the lower part of the tube wall of the syringe barrel, a labor-saving ring is threadedly installed at the position of the outer thread of the syringe barrel; the needle is detachably mounted on the bottom of the syringe barrel through a clamping mechanism; and a conical transition section is arranged on the upper part of the needle.

[0005] Optimally, the labor-saving ring is an annular structure, an observation hole is opened on the side of the labor-saving ring, and an internal thread is arranged on the inner side of the labor-saving ring.

[0006] Optimized, a clamping plate is provided on the upper part of the needle. The clamping plate is a circular structure with a notch; the top end of the needle penetrates through the clamping plate, and a first sealing ring is provided at the position where the needle contacts the upper surface of the clamping plate; the conical transition section is provided at the position where the needle contacts the lower surface of the clamping plate.

[0007] Optimized, the clamping mechanism includes a circular connecting plate sealed and fixed at the bottom of the syringe barrel. A circumferential baffle is provided at the outer bottom edge of the connecting plate, and a limiting plate is provided at the bottom of the circumferential baffle. The size of the limiting plate is the same as the size of the notch of the clamping plate; a liquid outlet hole is provided on the connecting plate, and a second sealing ring is provided outside the liquid outlet hole.

[0008] Optimized, an arc-shaped anti-slip sleeve is provided on the upper part of the syringe barrel.

[0009] Optimized, a plurality of force-boosting plates are provided on the circumferential side of the labor-saving ring. The plurality of force-boosting plates are L-shaped structures.

[0010] The beneficial effects of the present utility model are as follows:

[0011] A conical transition section is designed on the needle, which makes the resistance smaller when pulling out, reducing the friction force during pulling out;

[0012] A clamping mechanism is provided. By inserting the clamping plate installed on the needle into the connecting plate and rotating, the limiting plate has a blocking force on the clamping plate, preventing the needle from falling off the syringe barrel. And first sealing rings and second sealing rings are respectively provided at the installation position of the needle to prevent the injection liquid from leaking;

[0013] A labor-saving ring is rotatably installed at the lower part of the syringe barrel. When the resistance of pulling out the needle is large, by rotating the labor-saving ring, the bottom of the labor-saving ring contacts the medicine bottle, so as to apply a downward force to the medicine bottle, and finally it is convenient to remove;

[0014] An arc-shaped anti-slip sleeve is provided on the syringe barrel to reduce operation errors caused by hand slipping during the pulling-out process. Description of the Drawings

[0015] Figure 1 is an overall schematic diagram of the syringe for large-caliber medicine bottles of the present utility model (without the medicine bottle).

[0016] Figure 2 is an overall schematic diagram of the syringe for large-caliber medicine bottles of the present utility model (with the medicine bottle).

[0017] Figure 3 is an enlarged disassembled schematic diagram at the needle position of the present utility model.

[0018] Figure 4 is a schematic diagram of the labor-saving ring of the present utility model.

[0019] Figure 5 This is the overall schematic diagram (without the medicine bottle) of the syringe for small-caliber medicine bottles of the present utility model.

[0020] Figure 6 This is the schematic diagram at the needle clamping plate of the present utility model.

[0021] Reference numerals in the attached drawings: 1: syringe barrel, 2: needle, 3: arc-shaped anti-slip sleeve, 4: labor-saving ring, 5: observation hole, 6: clamping plate, 7: first sealing ring, 8: tapered transition section, 9: connecting plate, 10: circumferential baffle, 11: limiting plate, 12: notch, 13: liquid outlet hole, 14: second sealing ring, 15: force-applying plate. Specific embodiments

[0022] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined purpose, the following, in conjunction with the attached drawings and preferred embodiments, details the specific embodiments, structures, features and their effects of the present utility model as follows.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances.

[0024] It should be noted that in this application, unless otherwise stated, the orientation terms such as "upper", "lower", "top", "bottom" are usually in reference to the direction shown in the attached drawings, or in reference to the vertical, perpendicular or gravitational direction of the component itself; similarly, for the sake of easy understanding and description, "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms do not limit the present utility model.

[0025] Embodiment: As Figure 1-6 shown, a syringe for a thyroid imaging agent includes a syringe body, and the syringe body includes a syringe barrel 1, a push rod and a needle 2.

[0026] An arc-shaped anti-slip sleeve 3 is provided on the upper part of the syringe barrel 1 to prevent hand slippage during the extraction process, and the arc-shaped anti-slip sleeve 3 can be made of rubber.

[0027] The lower part of the tube wall of the syringe barrel 1 is circumferentially provided with an external thread, and a labor-saving ring 4 is threadedly installed at the position of the external thread of the syringe barrel 1. The labor-saving ring 4 is of an annular structure, and an internal thread is provided on the inner side of the labor-saving ring 4. A longitudinal observation hole 5 is formed in the side surface of the labor-saving ring 4, and the remaining situation of the injection liquid in the syringe can be seen through the observation hole 5. When the bottle mouth size of the medicine bottle is large, first rotate the labor-saving ring 4 downward, so that the bottom of the labor-saving ring 4 contacts the bottle mouth of the medicine bottle. Continue to rotate the labor-saving ring 4. During the process of the labor-saving ring 4 moving downward, there will be a downward force on the medicine bottle, which helps the needle 2 to disengage from the bottle mouth. When not in use, rotate the labor-saving ring 4 upward.

[0028] A clamping plate 6 is fixed to the upper part of the needle 2. The clamping plate 6 is of a circular structure with a notch 12 formed therein. The upper end of the needle 2 penetrates through the clamping plate 6, and a first sealing ring 7 is placed at the position where the needle 2 contacts the upper surface of the clamping plate 6.

[0029] A tapered transition section 8 is provided on the upper part of the needle 2. The tapered transition section 8 is arranged at the position where the needle 2 contacts the lower surface of the clamping plate 6. The material of the tapered transition section 8 is the same as that of the needle 2, which makes the resistance smaller when pulling out.

[0030] The needle 2 is detachably installed at the bottom of the syringe barrel 1 through a clamping mechanism. The clamping mechanism includes a circular connecting plate 9 sealed and fixed to the bottom of the syringe barrel 1. A circumferential baffle 10 is fixed to the outer bottom edge of the connecting plate 9. A limiting plate 11 is fixed to the bottom of the circumferential baffle 10, and the size of the limiting plate 11 is the same as the size of the notch 12 of the clamping plate 6. Insert the clamping plate 6 installed on the needle 2 into the connecting plate 9 and rotate it. In this way, the limiting plate 11 has a blocking force on the clamping plate 6, preventing the needle 2 from falling off the syringe barrel 1.

[0031] A liquid outlet hole 13 is formed in the connecting plate 9, and a second sealing ring 14 is arranged outside the liquid outlet hole 13. By providing the first sealing ring 7 and the second sealing ring 14, the leakage of the injection liquid is avoided.

[0032] Two force-applying plates 15 are arranged on the circumferential side of the labor-saving ring 4. Both of the two force-applying plates 15 are of an L-shaped structure. When the bottle mouth of the medicine bottle is small, when the labor-saving ring 4 rotates downward, the bottom of the force-applying plate 15 can contact the bottle mouth of the small-caliber medicine bottle, so as to realize the labor-saving extraction of the needle 2 when pumping liquid from the small medicine bottle.

[0033] The above are only the preferred embodiments of the present utility model, and do not impose any formal restrictions on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A thyroid imaging agent syringe, comprising a syringe body, wherein the syringe body comprises a syringe barrel, a push rod and a needle, characterized in that: The lower part of the tube wall of the syringe barrel is circumferentially provided with external threads, and a labor-saving ring is threadedly installed at the position of the external threads of the syringe barrel; the needle is detachably mounted on the bottom of the syringe barrel through a clamping mechanism; and a conical transition section is arranged on the upper part of the needle.

2. A thyroid imaging agent syringe according to claim 1, characterized in that: The labor-saving ring is an annular structure, an observation hole is opened on the side of the labor-saving ring, and an internal thread is arranged on the inner side of the labor-saving ring.

3. A thyroid imaging agent syringe according to claim 2, characterized in that: A clamping plate is arranged on the upper part of the needle, and the clamping plate is a circular structure with a notch; the top end of the needle passes through the clamping plate, and a first sealing ring is arranged at the contact position between the needle and the upper surface of the clamping plate; the conical transition section is arranged at the contact position between the needle and the lower surface of the clamping plate.

4. A thyroid imaging agent syringe according to claim 3, characterized in that: The clamping mechanism includes a circular connecting plate sealed and fixed to the bottom of the syringe barrel, a circumferential baffle is arranged at the outer bottom edge of the connecting plate, a limiting plate is arranged at the bottom of the circumferential baffle, and the size of the limiting plate is the same as the notch size of the clamping plate; a liquid outlet is opened on the connecting plate, and a second sealing ring is arranged outside the liquid outlet.

5. A thyroid imaging agent syringe according to claim 4, characterized in that: An arc-shaped anti-slip sleeve is arranged on the upper part of the syringe barrel.

6. A thyroid imaging agent syringe according to claim 5, characterized in that: A plurality of lever plates are arranged on the circumference of the force-saving ring, and the plurality of lever plates are L-shaped structures.

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