Becton dickinson syringe with retracting needle guard

Abstract

This utility model relates to an auxiliary device for the Bilan syringe, specifically a retractable and detachable needle protective sleeve for the Bilan syringe. The Bilan syringe retractable and detachable needle protective sleeve includes a sleeve with two symmetrical grooves on its inner wall. Viewing windows are provided on the front and rear sides of the sleeve. Two horizontal, symmetrical spring channels are also provided on the inner wall of the sleeve. A spring is installed inside each spring channel, with one end fixed inside the spring channel and the other end fixed to a trapezoidal block. The trapezoidal block has a right-angled trapezoidal cross-section with its sloping waist facing upwards. The other end of the spring is fixed to the bottom of the trapezoidal block, which is also fixed to the other end of a connecting rod. The connecting rod passes through the spring, and one end extends out of the sleeve and connects to a button outside the sleeve. This utility model protective sleeve can hide the needle, reducing children's fear of needles, and can also assist medical personnel in removing the needle, preventing needlestick injuries and reducing the risk of infection.

Description

Technical Field

[0001] This utility model relates to a Bilan syringe for injecting anesthetic drugs in oral surgery, and more particularly to an auxiliary device for the Bilan syringe, specifically a concealable and detachable needle protective sleeve for the Bilan syringe. Background Technology

[0002] It is well known that the shape of a needle is aggressive and can induce fear, leading to instinctive resistance to injections. Even adults who outwardly cooperate may experience psychological stress and fainting spells. Children, due to natural conditioned reflexes, are even more resistant to injections; forcing them can cause psychological trauma and may even result in injection failure. The Bilan syringe is primarily used for local anesthesia during treatment to reduce pain and facilitate the procedure. However, children often resist the needle on the Bilan syringe and are uncooperative. Parents often cover the child's eyes during the injection, but this is not very effective. Utility Model Content

[0003] To address the problem of children resisting injections and thus affecting treatment outcomes, this invention provides a concealable and detachable needle protective sleeve for the Bilan syringe.

[0004] This utility model is achieved using the following technical solution: A removable and concealable needle protective sleeve for a Bilan syringe includes a sleeve. Two symmetrical grooves are provided on the inner wall of the sleeve. Viewing windows are provided on the front and rear sides of the sleeve. Two horizontal, symmetrical spring channels are also provided on the inner wall of the sleeve. A spring is installed inside the spring channel. One end of the spring is fixed inside the spring channel, and the other end of the spring is fixed to a trapezoidal block. The cross-section of the trapezoidal block is a right trapezoid, and the sloping waist of the trapezoidal block faces upward. The other end of the spring is fixed to the bottom of the trapezoidal block. The bottom of the trapezoidal block is also connected to the other end of a connecting rod. After the connecting rod passes through the spring, one end extends out of the sleeve and connects to a button outside the sleeve.

[0005] The sleeve can be fitted over the Bilan syringe, concealing the needle inside. Pulling the sleeve until the protrusion of the Bilan syringe is engaged in the groove inside the sleeve exposes the needle completely. During use, the needle enters the mouth when concealed; pulling the sleeve exposes the needle in the child's mouth, allowing the doctor to administer the injection. After injection, push the sleeve downwards until the top of the trapezoidal block contacts the needle cap. Press the button firmly inwards; the button, via a linkage, actuates the needle cap. While holding the button, rotate the sleeve to remove the needle. Dispose of the needle in the sharps container to prevent needlestick injuries and reduce the risk of infection.

[0006] The aforementioned Bilan syringe has a concealable and removable needle protective sleeve, and the viewing window on the sleeve is the same size and shape as the viewing window of the Bilan syringe.

[0007] This new protective sleeve can hide the needle, reducing children's fear of needles, and can also help medical staff remove the needle, preventing needlestick injuries and reducing the risk of infection. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the Bilan syringe.

[0009] Figure 2 This is a schematic diagram of the structure of a Bilan syringe with a needle.

[0010] Figure 3 This is a schematic diagram of the structure of the protective sleeve of this utility model.

[0011] Figure 4 This is a schematic diagram of how the protective sleeve of this utility model covers the needle.

[0012] Figure 5 This is a schematic diagram showing the protective sleeve of this utility model exposing the needle.

[0013] Figure 6 This is a schematic diagram of how to remove the needle from the protective sleeve of this utility model.

[0014] In the diagram: 1-sleeve, 2-groove, 3-viewing window, 4-spring, 5-trapezoidal block, 6-connecting rod, 7-button, 8-protrusion, 9-needle. Detailed Implementation

[0015] The Bilan syringe features a concealable and detachable needle protective sleeve, comprising a sleeve 1. The sleeve 1 has a hollow structure, with two symmetrical grooves 2 on its inner wall. Visible windows 3 are located on the front and rear sides of the sleeve, and these windows 3 are the same size and shape as the visible windows on the Bilan syringe. Two horizontal, symmetrical spring channels are also located on the inner wall of the sleeve 1, each containing a spring 4. One end of the spring 4 is fixed within the spring channel, and the other end is fixed to a trapezoidal block 5. The trapezoidal block 5 has a right-angled trapezoidal cross-section with its sloping waist facing upwards. The other end of the spring 4 is fixed to the bottom of the trapezoidal block 5, which is also connected to the other end of a connecting rod 6. The connecting rod 6 passes through the springs, and one end extends out of the sleeve and connects to a button 7 outside the sleeve.

[0016] Two symmetrical protrusions 8 are provided on both sides of the exterior of the Bilan syringe. After the sleeve 1 is fitted onto the Bilan syringe, the needle 9, which is threaded at the bottom of the Bilan syringe, can be hidden inside the sleeve 1. During use, pull upwards until the protrusions 8 are locked in the grooves 2 inside the sleeve to prevent the sleeve from slipping off during use. At this time, the viewing windows 3 on the front and back sides of the sleeve are aligned with the viewing windows 3 on the front and back sides of the Bilan syringe for easy observation. At this time, the needle 9 is exposed in the child's mouth, and the doctor can then perform the injection. After the doctor finishes the injection, push the sleeve 1 downwards. When a "click" is heard, the top bottom of the trapezoidal block 5 is in contact with the needle cap. At this time, press the button 7 inwards. The button 7 acts on the needle cap through the connecting rod 6. By pressing the button 7 and rotating the sleeve 1, the needle 9 can be removed and discarded into the sharps container to prevent needlestick injuries and reduce the risk of infection.

[0017] This utility model's protective sleeve, when connected to the Bilan syringe, can cover the needle 9. Only after pulling up the protective sleeve will the needle 9 be exposed in the mouth. During this process, the child cannot see the needle 9, reducing the child's fear of needles. After the sleeve 1 of the protective sleeve is fitted onto the Bilan syringe, the outer wall of the syringe compresses the trapezoidal block 5. The spring 4 inside the spring tube is in a compressed state. When the sleeve 1 is pushed down, the trapezoidal block 5 falls from the outer wall of the syringe onto the needle cap. Under the restoring force of the spring 4, the trapezoidal block 5 contacts the needle cap, producing a sound. Medical personnel can determine the position of the trapezoidal block 5 by the sound. At this time, the position of button 7 outside the sleeve also changes. Button 7 is now closer to sleeve 1. The position of trapezoidal block 5 can also be determined from the position of button 7. The sloping waist of trapezoidal block 5 ensures that sleeve 1 can pass smoothly through the diameter change part of the Bilan syringe during the up and down movement. After being squeezed by the outer wall of the Bilan syringe, trapezoidal block 5 can enter the spring tube. This protective sleeve can be sterilized under high pressure and reused, reducing the cost of use. A silicone cartoon doll can also be installed at the end of the Bilan syringe push rod. After the consultation, the silicone cartoon doll can be given to the child to shorten the distance between the doctor and the child and make the child less afraid of injections.

Claims

1. A Becton Dickinson syringe concealable, removable needle guard characterized by: Includes a sleeve (1), with two symmetrical grooves (2) on the inner wall of the sleeve (1), and viewing windows (3) on the front and rear sides of the sleeve (1). Two horizontal, symmetrical spring pipes are also provided on the inner wall of the sleeve, with springs (4) installed inside the spring pipes. One end of the spring (4) is fixed inside the spring pipe, and the other end of the spring (4) is fixed to the trapezoidal block (5). The cross section of the trapezoidal block (5) is a right trapezoid, and the sloping waist of the trapezoidal block (5) faces upward. The other end of the spring (4) is fixed to the bottom of the trapezoidal block (5). The bottom of the trapezoidal block (5) is also connected to the other end of the connecting rod (6). After the connecting rod (6) passes through the spring (4), one end extends out of the sleeve (1) and connects to the button (7) outside the sleeve.

2. The Becton Dickinson syringe concealable, detachable needle guard of claim 1 wherein: The viewing window (3) on the sleeve (1) is the same size and shape as the viewing window of the Bilan syringe.

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