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My first medicine-dropper clip did not prove satisfactory. The pipettes on the market vary so widely in caliber that they will not fit any single loop of standard size. When the pipette is too small the tip rests on the table, exposed to infection and displacement; when too large it cannot be inserted into the loop or removed without undue effort. Moreover, the single clip does not cling securely to the vial, besides being too difficult and expensive to manufacture.
I have now contrived a clip, illustrated herewith, which overcomes these objections. It can be made by any one with the aid of a bit of wire and a pair of pincers, and will fit a bottle of any size. There are two loops, the top one sufficiently large to engage loosely a pipette of any size, while the lower one engages and supports the tip. The pipette can be
WOOD PR. A NEW MEDICINE-DROPPER CLIP. JAMA. 1911;LVII(22):1762. doi:10.1001/jama.1911.04260110262013