| 摘要 |
The present invention relates to a unitary volumetric pipette (1) for collecting and dispensing a desired measured sample volume. The pipette (1) comprises a stem portion (6), narrow diameter bulb portion (9), and a wide diameter bulb portion (11). The inner chamber of the stem portion (6) has a volume corresponding to the desired sample volume and the inner diameter and length of the stem portion (6) is dimensioned according to the desired chamber volume. The operator can collect a precise known sample volume equal to the inner volume of the stem (6). The narrow bulb portion (9) gives the operator greater accuracy in drawing the sample and the wide bulb portion (11) permits the operator to dispense the entire sample from the pipette (1). The pipette (1) design of the present invention can be manufactured quickly and inexpensively using conventional blowmolding methods. Using the pipette design of the present invention, an operator can easily and efficiently collect, transport and dispense a precise, small sample volume. This pipette design is particularly suited for taking capillary blood samples from a finger or heel stick for a single diagnostic test. <IMAGE> |
