Anesthetic needle convenient for controlling dosage

Abstract

The anesthetic needle comprises a needle cylinder, a needle head and a push rod, a driving sleeve is rotatably mounted at the top end of the needle cylinder, internal threads are arranged on the inner wall of the driving sleeve, external threads matched with the internal threads are arranged on the outer wall of the push rod, a second mounting piece is mounted at the end of the push rod, and a quantifying rod is mounted at the bottom end of the second mounting piece. The outer wall of the quantifying rod is provided with multiple groups of scales at equal intervals and is rotatably provided with a control block. Through the threaded fit of the push rod and the driving sleeve and the arrangement of the quantitative rod and the control block, the precise control over liquid medicine extraction and injection can be achieved, medical staff can accurately adjust the position of the push rod according to needs, and therefore the medicine amount is controlled, and negative effects caused by too much or too little medicine amount are avoided; meanwhile, the anesthetic needle can extract liquid medicine by one hand, hold the needle cylinder by one hand and rotate the driving sleeve by the thumb to push the push rod, so that the advantages are obvious in emergency and space-limited environments, time is saved, and the treatment efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of anesthesiology equipment technology, and more specifically, it relates to an anesthetic needle that facilitates the control of drug dosage. Background Technology

[0002] Anesthesia is a common medical procedure used to reduce pain in patients during surgery or other medical procedures. As an important tool for administering anesthesia, the accurate control of the dosage of anesthetic injections is crucial to ensuring the anesthetic effect and patient safety.

[0003] In traditional anesthetic needle design, dosage control mainly relies on the experience and manual operation of medical staff. However, this method has certain limitations and inaccuracies. The structural design of traditional anesthetic needles is relatively simple, and the scale markings are not clear and precise enough, which makes it difficult for medical staff to judge and control the dosage. Especially in emergency situations or complex medical environments, dosage control errors are more likely to occur.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide an anesthetic needle that is easy to control the dosage, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an anesthetic needle that facilitates control of drug dosage, achieved through the following specific technical means:

[0006] An anesthetic needle for easy dosage control includes a syringe, a needle, and a plunger. A drive sleeve is rotatably mounted on the top of the syringe, and the inner wall of the drive sleeve is provided with an internal thread. The outer wall of the plunger is provided with an external thread that mates with the internal thread. A second mounting plate is mounted on the end of the plunger, and a metering rod is mounted on the bottom of the second mounting plate. Multiple sets of graduations are equidistantly arranged on the outer wall of the metering rod. A control block is rotatably mounted on the outer wall of the metering rod, and a first mounting plate that mates with the control block is mounted on the outer wall of the syringe.

[0007] Preferably, the surface of the drive sleeve is provided with anti-slip texture.

[0008] Preferably, the top of the first mounting plate has a through hole that matches the end of the metering rod, the bottom end of the metering rod passes through the through hole, and the outer wall of the first mounting plate has symmetrical thumb grooves.

[0009] Preferably, the scale on the outer wall of the metering rod is marked with different colors to indicate different dosage ranges.

[0010] Preferably, the outer wall of the metering rod and the inner wall of the control block are both provided with matching threads, and the outer wall of the metering rod and the control block are spirally connected.

[0011] Preferably, the top surface of the syringe is provided with an annular groove, and the bottom end of the drive sleeve is provided with an annular protrusion. The drive sleeve achieves a gripping rotation connection through the cooperation between the annular protrusion and the annular groove of the syringe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the threaded engagement of the push rod and the drive sleeve, as well as the setting of the metering rod and the control block, enables precise control of drug extraction and injection. Medical personnel can accurately adjust the position of the push rod as needed to control the dosage and avoid adverse consequences caused by too much or too little drug. At the same time, this anesthetic needle can extract the drug with one hand, hold the syringe with one hand, and rotate the drive sleeve with the thumb to push the push rod. It has obvious advantages in emergency situations and space-constrained environments, saving time and improving treatment efficiency. Traditional two-handed operation is prone to inaccurate drug control. This anesthetic needle, through the threaded engagement, metering rod and control block, can stably control the movement distance of the push rod and achieve precise drug control, especially suitable for micro-dose anesthetic injection.

[0014] 2. The scale on the metering rod of this utility model uses different colors to indicate different dosage ranges, enabling medical staff to more intuitively judge the dosage and improving the accuracy and convenience of dosage control. The anti-slip texture on the surface of the drive sleeve increases friction, making it convenient for medical staff to operate the drive sleeve with one hand, thereby pushing the push rod to extract and inject the liquid medicine, improving the convenience and efficiency of operation. The through hole and thumb groove design on the first mounting plate makes it convenient for medical staff to fix and adjust the metering rod during operation, while also improving the comfort and stability of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the injection state of this utility model.

[0016] Figure 2 This is a schematic diagram of the liquid extraction state of this utility model.

[0017] Figure 3 This is an enlarged schematic diagram of a partial structure of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Syringe; 2. Needle; 3. Push rod; 4. External thread; 5. Drive sleeve; 6. Internal thread; 7. Anti-slip texture; 8. Metering rod; 9. Scale; 10. Control block; 11. First mounting plate; 12. Thumb groove; 13. Annular groove; 14. Annular protrusion; 15. Second mounting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example:

[0022] As attached Figure 1 To be continued Figure 3 As shown:

[0023] This utility model provides an anesthetic needle for easy dosage control, including a syringe 1, a needle 2, and a push rod 3. A drive sleeve 5 is rotatably mounted on the top of the syringe 1. The inner wall of the drive sleeve 5 is provided with an internal thread 6. The outer wall of the push rod 3 is provided with an external thread 4 that mates with the internal thread 6. A second mounting plate 15 is mounted on the end of the push rod 3. A metering rod 8 is mounted on the bottom of the second mounting plate 15. Multiple sets of scales 9 are equidistantly arranged on the outer wall of the metering rod 8. A control block 10 is rotatably mounted on the outer wall of the metering rod 8. A first mounting plate 11 that mates with the control block 10 is mounted on the outer wall of the syringe 1.

[0024] The drive sleeve 5 has anti-slip texture 7 on its surface. The anti-slip texture 7 on the surface of the drive sleeve 5 increases the friction between the thumb and the drive sleeve 5, making it more stable for medical staff to operate and rotate the drive sleeve 5 with one hand, and making it less prone to slipping. This ensures the smooth progress of drug extraction and injection, and improves the accuracy and safety of the operation.

[0025] The first mounting plate 11 has a through hole at its top end that matches the end of the metering rod 8. The bottom end of the metering rod 8 passes through the through hole. The outer wall of the first mounting plate 11 has symmetrical thumb grooves 12. The through hole at the top end of the first mounting plate 11 that matches the end of the metering rod 8 allows the metering rod 8 to pass through the first mounting plate 11 stably, ensuring the stability and verticality of the metering rod 8 during use. The symmetrical thumb grooves 12 on the outer wall of the first mounting plate 11 facilitate the positioning and operation of the first mounting plate 11 by medical staff using their thumbs during operation, improving the convenience and efficiency of operation.

[0026] The scale 9 on the outer wall of the metering rod 8 uses different colors to indicate different dosage ranges. This allows medical staff to more intuitively judge the amount of medication being drawn or injected. The different colors can quickly distinguish different dosage ranges, reducing dosage errors caused by misreading the scale 9, and improving the accuracy and safety of dosage control. Especially in emergency situations, it can save time and improve treatment efficiency.

[0027] The outer wall of the metering rod 8 and the inner wall of the control block 10 are both provided with matching threads. The outer wall of the metering rod 8 and the control block 10 are spirally connected. This connection allows the control block 10 to be precisely adjusted on the metering rod 8. By rotating the control block 10, it can be easily fixed in the required position, thereby achieving precise control of the position of the push rod 3 and accurately controlling the amount of medicine. This connection method is stable and reliable, not easy to loosen, and ensures the stability and durability of the medicine dosage control.

[0028] The syringe 1 has an annular groove 13 on its top surface, and the drive sleeve 5 has an annular protrusion 14 on its bottom end. The drive sleeve 5 achieves a rotatable connection through the engagement of the annular protrusion 14 with the annular groove 13 on the top surface of the syringe 1. This connection method ensures the rotational stability and reliability of the drive sleeve 5 on the syringe 1, preventing it from shaking or falling off during operation. This connection method makes single-handed operation smoother, improving comfort and efficiency. It also helps extend the service life of the anesthetic needle and reduces damage caused by weak connections.

[0029] The working principle of this embodiment is as follows: When medication needs to be drawn, the medical staff holds the syringe 1 with one hand, placing their thumb on the drive sleeve 5. Because the drive sleeve 5 has anti-slip texture 7 on its surface, it increases friction and prevents slippage. The thumb rotates the drive sleeve 5, and the internal thread 6 on the inner wall of the drive sleeve 5 engages with the external thread 4 on the outer wall of the push rod 3, causing the push rod 3 to move inside the syringe 1. As the push rod 3 moves, the second mounting plate 15 installed at the end of the push rod 3 drives the metering rod 8 to move. The medical staff can observe the movement of the metering rod 8 by observing the outer wall of the metering rod 8. The scale 9 is used to determine the amount of medicine to be extracted, and different colors are used to indicate different ranges of medicine dosage, which is more intuitive. Then, according to the required amount of medicine, the control block 10 is rotated. Since the outer wall of the metering rod 8 and the control block 10 are spirally connected, the control block 10 can move on the metering rod 8. Move the control block 10 to the position relative to the scale 9 on the outer wall of the metering rod 8. When injecting medicine, rotate the drive sleeve 5 in the opposite direction to push the push rod 3 forward. When the control block 10 abuts against the top of the first mounting piece 11, the precise control of the amount of medicine is achieved.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An anesthetic needle for easy dosage control, comprising a syringe (1), a needle (2), and a plunger (3), characterized in that: A drive sleeve (5) is rotatably mounted on the top of the syringe (1). The inner wall of the drive sleeve (5) is provided with an internal thread (6). The outer wall of the push rod (3) is provided with an external thread (4) that mates with the internal thread (6). A second mounting plate (15) is mounted on the end of the push rod (3). A metering rod (8) is mounted on the bottom end of the second mounting plate (15). Multiple sets of scales (9) are equidistantly arranged on the outer wall of the metering rod (8). A control block (10) is rotatably mounted on the outer wall of the metering rod (8). A first mounting plate (11) that mates with the control block (10) is mounted on the outer wall of the syringe (1).

2. The anesthetic needle for easy dosage control as described in claim 1, characterized in that: The surface of the drive sleeve (5) is provided with anti-slip texture (7).

3. The anesthetic needle for easy dosage control as described in claim 1, characterized in that: The top end of the first mounting plate (11) is provided with a through hole that matches the end of the metering rod (8), and the bottom end of the metering rod (8) passes through the through hole. Thumb grooves (12) are symmetrically provided on the outer wall of the first mounting plate (11).

4. The anesthetic needle for easy dosage control as described in claim 3, characterized in that: The scale (9) on the outer wall of the metering rod (8) is marked with different colors to indicate different dosage ranges.

5. The anesthetic needle for easy dosage control as described in claim 1, characterized in that: The outer wall of the metering rod (8) and the inner wall of the control block (10) are both provided with matching threads, and the outer wall of the metering rod (8) and the control block (10) are spirally connected.

6. The anesthetic needle for easy dosage control as described in claim 1, characterized in that: The top surface of the syringe (1) is provided with an annular groove (13), and the bottom end of the drive sleeve (5) is provided with an annular protrusion (14). The drive sleeve (5) achieves a gripping rotation connection through the cooperation of the annular protrusion (14) and the annular groove (13) of the syringe (1).

Images