Anesthetic needle for anesthesiology department

Abstract

The utility model discloses an anesthetic needle for the anesthesiology department, and relates to the technical field of the anesthesiology department, the anesthetic needle for the anesthesiology department comprises an injector and an injection needle, a connecting hose is arranged between the injector and the injection needle, two ends of the connecting hose are respectively provided with a connecting male head and a connecting female head, and the injector is inserted into the connecting female head. The injection needle is inserted into the outer surface of the connecting male head, the outer surface of the connecting female head is sleeved with a connecting frame, extrusion blocks are slidably connected to the upper side and the lower side of the interior of the connecting frame, the extrusion blocks are fixedly connected with the inner wall of the connecting frame through reset springs, and the connecting frame is slidably connected to the outer surface of the hose. The disposable syringe is reasonable in design structure, the hose capable of being communicated is arranged between the syringe and the injection needle, the injection needle is fixed to a patient, the ductility of the hose can buffer the influence on the injection needle when the syringe is inserted and pulled out, and therefore the needle head of the injection needle can be prevented from moving.

Description

Technical Field

[0001] This utility model relates to the field of anesthesiology, specifically to an anesthetic needle for use in anesthesiology. Background Technology

[0002] Anesthesia is a necessary preparation before surgery, and anesthetic needles are essential supplies for anesthesia. An anesthetic needle is a syringe that is inserted into a syringe.

[0003] During anesthesia administration, according to the "Modern Anesthesiology" guidelines: "After successful puncture and catheter placement, a test dose should be injected, such as lidocaine 40-60mg, or bupivacaine or ropivacaine 8-10mg, to rule out the possibility of accidental entry into the subarachnoid space. After observing for 5-10 minutes, if there are no signs of subarachnoid anesthesia, 3-5ml of local anesthetic can be injected every 5 minutes until the anesthesia area meets the surgical requirements."

[0004] Existing patent CN 203525110 U discloses that "in this anesthetic needle, the drug delivery chamber is located above the fourth drug delivery chamber, the lower part of the fourth drug delivery chamber is connected to the main drug delivery tube, the lower left side of the main drug delivery tube is connected to the left drug delivery tube, the upper left drug delivery tube is connected to the third drug delivery chamber, the right side of the main drug delivery tube is connected to the right drug delivery tube, the right drug delivery tube is connected to the first drug delivery chamber; the bottom of the main drug delivery tube is connected to the second drug delivery chamber; a piston is installed inside one side of the fourth drug delivery chamber, a push rod is connected to the piston, the other end of the push rod is connected to a pusher, and a pusher is located outside the fourth drug delivery chamber." This device can perform continuous injections, but it requires pre-setting the drug for multiple injections inside the device, reducing the time the drug needs to be stored in a suitable storage environment.

[0005] Multiple doses of anesthetic are required during surgery. Frequent insertion and removal of the syringe can cause the needle to move. Therefore, an anesthetic needle that can reduce needle movement caused by insertion and removal of the syringe is needed. Utility Model Content

[0006] 1) Technical problems to be solved

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an anesthetic needle for use in anesthesiology.

[0008] (ii) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an anesthesia needle for anesthesiology, comprising a syringe and an injection needle, wherein a connecting tube is provided between the syringe and the injection needle, and a male connector and a female connector are respectively provided at both ends of the connecting tube. The syringe is inserted into the inside of the female connector, and the injection needle is inserted into the outer surface of the male connector. A connecting frame is fitted onto the outer surface of the female connector, and a squeezing block is slidably connected to the upper and lower sides of the inside of the connecting frame. The squeezing block and the inner wall of the connecting frame are fixedly connected by a return spring, and the connecting frame is slidably connected to the outer surface of the tube.

[0010] Furthermore, the connecting frame is divided into upper and lower parts, which are fixedly connected by bolts on both sides.

[0011] Furthermore, a limiting block is provided on the inner side of the connecting frame, and limiting grooves are opened on both sides of the extrusion block.

[0012] Furthermore, the end of the extrusion block near the male connector is chamfered, and the bottom end of the extrusion block is rounded.

[0013] Furthermore, the hose is flat in shape, and a cavity is provided in the middle of the hose.

[0014] Furthermore, the outer surface of the injection needle is symmetrically provided with fixing rings, a connecting rod 1 is inserted into the inside of the fixing ring, a connecting half ring is fixedly installed on the outer surface of the connecting rod 1, and a connecting rod 2 is fixedly installed at the end of the connecting half ring away from the injection needle.

[0015] (iii) Beneficial effects:

[0016] Compared with existing technologies, this anesthesia needle for anesthesiology has the following beneficial effects:

[0017] I. This utility model provides a flexible tube that allows communication between the syringe and the injection needle. By fixing the injection needle to the patient, the flexibility of the tube can buffer the impact on the injection needle when inserting or removing the syringe, thereby preventing the needle tip from moving.

[0018] Second, this utility model addresses the issue that, due to the presence of a tubing, anesthetic residue may remain inside the tubing during injection. Therefore, by incorporating a retractable squeezing block, the anesthetic can be injected into the tubing by sliding the squeezing block against the outer surface of the tubing. Furthermore, the symmetrical arrangement of the squeezing blocks prevents anesthetic backflow. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the hose connection of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting half-ring of this utility model.

[0023] In the diagram: 1. Syringe; 2. Injection needle; 3. Tube; 4. Male connector; 5. Female connector; 6. Connecting frame; 7. Compression block; 8. Return spring; 9. Bolt; 10. Limiting block; 11. Limiting groove; 12. Cavity; 13. Fixing ring; 14. Connecting rod one; 15. Connecting half ring; 16. Connecting rod two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: an anesthesia needle for anesthesia, including a syringe 1 and an injection needle 2, with a connecting tube 3 between the syringe 1 and the injection needle 2. The two ends of the connecting tube 3 are respectively provided with a male connector 4 and a female connector 5. The syringe 1 is inserted into the inside of the female connector 5, and the injection needle 2 is inserted into the outer surface of the male connector 4. A connecting frame 6 is sleeved on the outer surface of the female connector 5. Squeezing blocks 7 are slidably connected to the upper and lower sides inside the connecting frame 6. The squeezing blocks 7 and the inner wall of the connecting frame 6 are fixedly connected by a return spring 8. The connecting frame 6 is slidably connected to the outer surface of the tube 3.

[0026] The connecting frame 6 is divided into upper and lower parts, which are fixedly connected by bolts 9 on both sides. This design facilitates the assembly of the connecting frame 6.

[0027] A limiting block 10 is provided on the inner side of the connecting frame 6, and limiting grooves 11 are provided on both sides of the extrusion block 7. This setting can limit the movement range of the extrusion block 7 and prevent the extrusion block 7 from shaking.

[0028] The end of the squeezing block 7 near the male connector 4 is beveled, and the bottom of the squeezing block 7 is rounded. This design allows the anesthetic drug in the tubing 3 to be squeezed to prevent injection residue.

[0029] The tubing 3 is flat in shape, and a cavity 12 is provided in the middle of the tubing 3. This design makes it easy to squeeze the cavity 12 into which the anesthetic is injected.

[0030] A fixing ring 13 is symmetrically arranged on the outer surface of the injection needle 2. A connecting rod 14 is inserted into the inside of the fixing ring 13. A connecting half ring 15 is fixedly installed on the outer surface of the connecting rod 14. A connecting rod 2 16 is fixedly installed at the end of the connecting half ring 15 away from the injection needle 2. This arrangement facilitates the insertion of the injection needle 2.

[0031] Working principle: A flexible tube 3 is set between the syringe 1 and the injection needle 2 to buffer the impact on the injection needle 2 when the syringe is inserted or removed. Since the flexible tube 3 is set, anesthetic residue will remain inside the flexible tube 3 during the injection process. Therefore, by setting a retractable squeezing block 7, the squeezing block 7 is squeezed on the outer surface of the flexible tube 3. By sliding, the anesthetic inside the flexible tube 3 can be injected. At the same time, the symmetrical squeezing blocks 7 can prevent the anesthetic from flowing back.

Claims

1. An anaesthesiological anaesthesia needle comprising a syringe (1) and an injection needle (2), characterized in that: A connecting hose (3) is provided between the syringe (1) and the injection needle (2). The two ends of the connecting hose (3) are respectively provided with a male connector (4) and a female connector (5). The syringe (1) is inserted into the inside of the female connector (5), and the injection needle (2) is inserted into the outer surface of the male connector (4). The outer surface of the connecting female head (5) is fitted with a connecting frame (6), and the upper and lower sides of the connecting frame (6) are slidably connected with extrusion blocks (7). The extrusion blocks (7) and the inner wall of the connecting frame (6) are fixedly connected by a reset spring (8). The connecting frame (6) is slidably connected to the outer surface of the hose (3).

2. The anesthetic needle of claim 1, wherein: The connecting frame (6) is divided into upper and lower parts, which are fixedly connected by bolts (9) on both sides.

3. The anesthetic needle of claim 1, wherein: The inner side of the connecting frame (6) is provided with a limiting block (10), and the two sides of the extrusion block (7) are provided with limiting grooves (11).

4. The anesthetic needle of claim 1, wherein: The end of the extrusion block (7) near the male connector (4) is chamfered, and the bottom end of the extrusion block (7) is rounded.

5. The anesthetic needle of claim 1, wherein: The hose (3) is flat in shape, and a cavity (12) is provided in the middle of the hose (3).

6. The anesthetic needle of claim 1, wherein: The outer surface of the injection needle (2) is symmetrically provided with a fixing ring (13), and a connecting rod (14) is inserted into the inside of the fixing ring (13). A connecting half ring (15) is fixedly installed on the outer surface of the connecting rod (14), and a connecting rod (16) is fixedly installed at the end of the connecting half ring (15) away from the injection needle (2).

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