Dental Metal Syringe

Description

The Dental Metal Aspirating Syringe is a fundamental, surgical-grade instrument designed for the precise, controlled administration of local anesthetics prior to dental and oral surgical procedures. Crafted from heavy-duty surgical stainless steel (or anodized aluminum), this reusable syringe is engineered to accommodate standard dental local anesthetic cartridges (1.8 mL / 2.2 mL) and standardized dental needles. It combines maximum clinical safety with high ergonomic stability, ensuring smooth fluid delivery while maintaining exact tactile control during infiltration and nerve block injections.

Key Clinical Applications

• Local Anesthesia Delivery: Infiltration and regional block techniques (e.g., Inferior Alveolar Nerve Blocks) for restorative, endodontic, periodontic, and surgical interventions.

• Intravascular Prevention: Enables active or passive aspiration verification prior to anesthetic deposition to reduce systemic toxicity risks.

• Routine & Complex Oral Surgery: Provides steady, measured pressure control during extractions, bone grafting, and soft-tissue surgery.

Technical Specifications

Detailed Functional Features

1. Positive Harpoon Aspirating System

The syringe is equipped with a sharp, precision-machined harpoon connected to the central piston rod. Upon loading the carpule and engaging the plunger, the harpoon penetrates the rubber stopper of the anesthetic cartridge. Pulling back slightly on the thumb ring creates negative pressure inside the carpule. If blood enters the glass cartridge, the clinician is immediately alerted to intravascular placement, allowing repositioning before fluid deposition.

2. Open Side-Loading Barrel Design

Features a wide lateral cut-out window that permits rapid, effortless insertion and removal of anesthetic glass carpules. The open frame provides clear, unobstructed visibility of the solution level and aspirating window throughout the injection process.

3. Ergonomic Ring-Grip & Balanced Handling

Engineered with a circular thumb ring and dual curved finger rests to provide superior leverage and balanced weight distribution. This design allows smooth, one-handed operation, reducing hand fatigue during multiple injections and preventing slippage even when gloves are wet.

4. Precision Universal Threading

The front tip features standard thread geometry, ensuring a tight, leak-proof seal with standard short and long dental needles. It prevents fluid leakage under tissue resistance during deep infiltration injections.

Cleaning, Maintenance & Sterilization

• Post-Operative Rinsing: Immediately rinse under running water to clear blood, saline, or anesthetic remnants.

• Ultrasonic Cleaning: Process in an ultrasonic bath using enzymatic detergent to clean intricate hinge points and harpoon tips.

• Autoclaving: Fully steam-sterilizable at standard parameters (121°C for 20 mins or 134°C for 3–5 mins).

• Inspection Note: Periodically inspect the harpoon tip for wear and verify that the plunger moves smoothly without binding along the barrel body.