Nozzle tip for pipetting apparatus

• Main Authors: TAKEDA, MASAAKI, SAITO, TAKAYOSHI
• Format: Patent
• Language: English; French; German
• Published: 21.04.2004
• Edition: 7
• Subjects: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; TESTING; THEIR RELEVANT APPARATUS; TRANSPORTING

In an improvement of a nozzle tip for a pipetting apparatus which is adapted to be removably attached to a nozzle base of the pipetting apparatus, the nozzle tip includes a head portion having an opening adapted to fit onto the nozzle base, a cylindrical portion extending downward from the head portion. a tip portion provided on the lower side of the cylindrical portion and having a tip opening for aspirating and dispensing a liquid, the tip portion having a diameter smaller than the diameter of the cylindrical portion, and a step portion formed between the cylindrical portion and the tip portion. A plurality of fins are integrally formed from the lower end portion of the cylindrical portion to the peripheral surface of the tip portion through the step portion with the same spacing in a circumferential direction for making the insertion of the nozzle tip into an upper opening of a target container smoothly and for structurally reinforcing the step portion.