Pasteur pipettes, also known as droppers, are used to transfer small quantities of liquids. Plastic Pasteur is relatively inexpensive and disposable, they are often used to avoid cross-contamination.
A vacuum extraction also called vacuum-assisted delivery is a procedure sometimes done during the course of vaginal childbirth. During a vacuum-assisted vaginal delivery, a health care provider applies the vacuum a soft or rigid cup with a handle and a vacuum pump .
