Novel light-proof injector

Abstract

The utility model discloses a novel light-proof injector which comprises a fixing base, a servo motor is fixedly installed at the top of the fixing base, a second gear is arranged at the bottom of the servo motor, the two sides of the second gear are meshed with first gears through teeth, an arc-shaped base is arranged at the bottom of the second gear, and the arc-shaped base is connected with the servo motor. Threaded rods are rotationally connected to the interiors of the arc-shaped seats through threads, opaque core rods are fixedly installed at the centers of the bottoms of the arc-shaped seats, and observation bases are rotationally connected to the bottoms of the threaded rods through bearings. The novel light-proof syringe has the advantages of being convenient to operate and accurate in quantification, and solves the problems that when a light-proof syringe in the prior art is used, due to the fact that the outer surface of the light-proof syringe is light-proof, the remaining amount of medicine used in a tube of the light-proof syringe cannot be observed when the light-proof syringe is used, meanwhile, the injection dosage cannot be accurately controlled, and the use cost of the light-proof syringe is reduced. And the operation steps are relatively tedious when the medical staff uses the device.

Description

Technical Field

[0001] This utility model relates to the field of light-shielding syringe technology, specifically to a novel light-shielding syringe. Background Art

[0002] Syringes are a common medical device. In clinical practice, some drugs need to be protected from light during infusion, otherwise photochemical reactions may occur. These photochemical reactions affect the efficacy of some drugs and may even produce side effects. Therefore, in clinical practice, some drugs, such as sodium nitroprusside, nitroglycerin, and vitamin B2, must be protected from light during use to ensure their therapeutic safety and reliability in order to meet their therapeutic effects and requirements.

[0003] However, existing light-shielding syringes, due to their light-shielding exterior, make it impossible to monitor the remaining amount of medication inside the syringe during use, and also cannot accurately control the injection dosage. This results in cumbersome operating procedures for medical personnel. Therefore, there is an urgent need for a new type of light-shielding syringe to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a novel light-shielding syringe that is easy to operate and provides accurate dosage, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel light-shielding syringe, comprising a fixed base, a servo motor fixedly mounted on the top of the fixed base, a second gear provided at the bottom of the servo motor, a first gear meshing with both sides of the second gear through teeth, an arc-shaped seat provided at the bottom of the second gear, a threaded rod rotatably connected inside the arc-shaped seat through threads, an opaque core rod fixedly mounted at the center of the bottom of the arc-shaped seat, an observation base rotatably connected at the bottom of the threaded rod through a bearing, a light-shielding shell fixedly mounted inside the observation base, and an L-shaped rod fixedly mounted at the center of the back of the arc-shaped seat.

[0006] Furthermore, the top of the first gear is rotatably connected to the bottom of the fixed base via a bearing, and the output shaft of the servo motor passes through the bottom of the fixed base and is fixedly connected to the top of the second gear.

[0007] Furthermore, a needle is fitted at the bottom of the light-shielding housing, and the top of the threaded rod extends through to the top of the arc-shaped seat and is fixedly connected to the bottom of the first gear.

[0008] Furthermore, the bottom of the threaded rod is rotatably connected to the top of the observation base via a bearing, and a rubber piston is provided in the inner cavity of the light-shielding shell.

[0009] Furthermore, the bottom of the opaque core rod is fixedly connected to the top of the rubber piston, and a groove is provided inside the L-shaped rod.

[0010] Furthermore, a slider is slidably connected inside the groove, and the front of the slider is fixedly connected to the back of the observation base.

[0011] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0012] This invention uses a fixed base to mount a servo motor, which drives a second gear. When injecting medication, the needle is first inserted into the patient's body. The servo motor drives the second gear to rotate, causing the first gear to rotate synchronously. The first gear drives the threaded rod to rotate in the same direction. Then, the arc-shaped base moves the opaque core rod, L-shaped rod, and rubber piston downwards. Under the action of the rubber piston, the medication is introduced into the patient's body through the needle. After a certain dose is injected, the servo motor stops working. After stopping, the remaining medication in the inner cavity of the light-proof outer shell can be observed through the L-shaped rod and the markings on the back of the observation base. This invention has the advantages of convenient operation and precise dosage, solving the problem of existing light-proof syringes where the remaining amount of medication inside the tube cannot be observed due to the light-proof exterior, and the injection dosage cannot be accurately controlled, leading to cumbersome operation procedures for medical personnel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0015] Figure 3 This is a bottom view schematic diagram of the second gear structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the L-shaped rod cross-section structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the opaque core rod structure of this utility model.

[0018] In the diagram: 1. Servo motor; 2. Fixed base; 3. Arc-shaped base; 4. First gear; 5. Second gear; 6. Threaded rod; 7. Observation base; 8. Opaque core rod; 9. Light-proof outer shell; 10. Needle; 11. L-shaped rod; 12. Slide groove; 13. Sliding block; 14. Rubber piston. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] This utility model provides, for example Figure 1-5 As shown, a novel light-shielding syringe includes a fixed base 2. A servo motor 1 is fixedly mounted on the top of the fixed base 2. A second gear 5 is provided at the bottom of the servo motor 1. A first gear 4 is meshed with the two sides of the second gear 5 through teeth. An arc-shaped seat 3 is provided at the bottom of the second gear 5. A threaded rod 6 is rotatably connected to the inside of the arc-shaped seat 3 through threads. An opaque core rod 8 is fixedly mounted at the center of the bottom of the arc-shaped seat 3. An observation base 7 is rotatably connected to the bottom of the threaded rod 6 through a bearing. A light-shielding shell 9 is fixedly mounted inside the observation base 7. An L-shaped rod 11 is fixedly mounted at the center of the back of the arc-shaped seat 3.

[0021] More specifically, by setting a servo motor 1 to drive the second gear 5, when injecting the drug solution, the needle 10 is first inserted into the patient's body. The servo motor 1 drives the second gear 5 to rotate, causing the first gear 4 to move synchronously. The first gear 4 drives the threaded rod 6 to rotate in the same direction. Then, the arc-shaped seat 3 drives the opaque core rod 8, L-shaped rod 11 and rubber piston 14 to move downward. Under the action of the rubber piston 14, the drug is introduced into the patient's body through the needle 10. At the same time, when a certain dose is injected, the servo motor 1 stops working. After stopping, the remaining drug in the inner cavity of the light-proof shell 9 can be observed through the L-shaped rod 11 and the markings on the back of the observation base 7. It has the advantages of convenient operation and accurate quantification.

[0022] In some embodiments, the top of the first gear 4 is rotatably connected to the bottom of the fixed base 2 via a bearing, and the output shaft of the servo motor 1 passes through the bottom of the fixed base 2 and is fixedly connected to the top of the second gear 5. More specifically, the second gear 5 is configured to primarily drive the first gear 4, causing it to rotate in the same direction.

[0023] In some embodiments, a needle 10 is fitted at the bottom of the light-shielding housing 9, and the top of the threaded rod 6 extends through to the top of the arc-shaped seat 3 and is fixedly connected to the bottom of the first gear 4. More specifically, the needle 10 is mainly used to facilitate the introduction of the drug solution into the patient's body.

[0024] In some embodiments, the bottom of the threaded rod 6 is rotatably connected to the top of the observation base 7 via a bearing, and the inner cavity of the light-shielding housing 9 is provided with a rubber piston 14. More specifically, the position of the arc-shaped seat 3 is raised or lowered by setting the threaded rod 6.

[0025] In some embodiments, the bottom of the opaque core rod 8 is fixedly connected to the top of the rubber piston 14, and the L-shaped rod 11 has a groove 12 inside. More specifically, the position of the rubber piston 14 is moved by setting the opaque core rod 8, and the liquid medicine is compressed by setting the rubber piston 14, thereby being discharged into the interior of the needle 10.

[0026] In some embodiments, a slider 13 is slidably connected inside the groove 12. The front of the slider 13 is fixedly connected to the back of the observation base 7. More specifically, the slider 13 is limited by the groove 12, and the L-shaped rod 11 is limited by the slider 13 to prevent the L-shaped rod 11 from shaking during movement, while facilitating the observation of the reagent inside the light-shielding shell 9.

[0027] Working principle:

[0028] Step 1: When injecting the medicine, first insert the needle 10 into the patient's body. The servo motor 1 drives the second gear 5 to rotate, so that the first gear 4 moves synchronously. The first gear 4 drives the threaded rod 6 to rotate in the same direction. Then the arc-shaped seat 3 drives the opaque core rod 8, L-shaped rod 11 and rubber piston 14 to move downward.

[0029] Step 2: Under the action of the rubber piston 14, the medicine is introduced into the patient's body through the needle 10. At the same time, when a certain dose is injected, the servo motor 1 stops working. After it stops working, the remaining medicine in the inner cavity of the light-proof shell 9 can be observed through the L-shaped rod 11 and the marking on the back of the observation base 7. It has the advantages of convenient operation and accurate quantification.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A novel light-shielding syringe, characterized in that: The device includes a fixed base (2), a servo motor (1) is fixedly installed on the top of the fixed base (2), a second gear (5) is provided at the bottom of the servo motor (1), a first gear (4) is meshed with the teeth on both sides of the second gear (5), an arc-shaped seat (3) is provided at the bottom of the second gear (5), a threaded rod (6) is rotatably connected to the inside of the arc-shaped seat (3) by a thread, an opaque core rod (8) is fixedly installed at the center of the bottom of the arc-shaped seat (3), an observation base (7) is rotatably connected to the bottom of the threaded rod (6) by a bearing, a light-shielding shell (9) is fixedly installed inside the observation base (7), and an L-shaped rod (11) is fixedly installed at the center of the back of the arc-shaped seat (3).

2. The novel light-shielding syringe according to claim 1, characterized in that: The top of the first gear (4) is rotatably connected to the bottom of the fixed seat (2) via a bearing, and the output shaft of the servo motor (1) passes through the bottom of the fixed seat (2) and is fixedly connected to the top of the second gear (5).

3. The novel light-shielding syringe according to claim 1, characterized in that: The bottom of the light-shielding shell (9) is fitted with a needle (10), and the top of the threaded rod (6) extends through to the top of the arc-shaped seat (3) and is fixedly connected to the bottom of the first gear (4).

4. The novel light-shielding syringe according to claim 1, characterized in that: The bottom of the threaded rod (6) is rotatably connected to the top of the observation base (7) via a bearing, and a rubber piston (14) is provided in the inner cavity of the light-shielding shell (9).

5. The novel light-shielding syringe according to claim 1, characterized in that: The bottom of the opaque core rod (8) is fixedly connected to the top of the rubber piston (14), and the L-shaped rod (11) has a groove (12) inside.

6. The novel light-shielding syringe according to claim 5, characterized in that: The slide (12) has a slider (13) slidably connected inside, and the front of the slider (13) is fixedly connected to the back of the observation base (7).

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