Disposable medicinal syringes consist of a dispenser ne […]
Disposable medicinal syringes consist of a dispenser needle.
The typical structure of the dispenser is two pieces and three pieces; the types are medium head type and eccentric head type; the capacity is 10 mL, 20 mL, 30 mL, 50 mL, 100 mL, etc. It is generally composed of ruler, zero scale line, indexing capacity line, nominal capacity scale line, jacket curling, cone head, jacket, piston, core rod, and pressing hands.
Typical dispensing needle types are side hole needles and bevel needles; specifications include 0.9mm, 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2.1 mm, 2.4 mm, etc .; they are generally composed of a needle seat, a needle tube, and a sheath.
Product working principle / action mechanism
Disposable pharmaceutical syringes are used in clinical use by pushing (pulling) the core rod of the dispenser with external force to drive the piston to pump the medicine solution into the infusion container; The injection is dissolved, and the diluted solution is injected into the infusion container for patient infusion.
Physical properties:
The dispenser implements the YY / T 0821-2010 regulations. The specific items include: appearance, scale, number of scale, total length of the nominal capacity line, location of the scale, jacket, distance between hands, piston, cone, body tightness, Capacity tolerance, residual capacity.
Dispensing needles comply with YY / T 0821-2010. Specific items include: materials (only the brand is required and no testing is required), appearance, size, patency of the side hole needle tube, particle contamination, puncture and chipping, connection firmness, corrosion resistance, and needle seat.
The rigidity and toughness of the needle tube are closely related to the performance of the product, but YY / T 0821-2010 has no relevant technical requirements. Need to increase needle tube material requirements to ensure the safety and effectiveness of clinical use.
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