An instrument for injecting and withdrawing fluids including an elastomeric membrane in communication with the chamber of the instrument from which fluids are injected or into which they are withdrawn, in which the membrane expands and contracts with increasing and decreasing pressure in the chamber, providing both a visual and a tactile indication of the pressure of injection or withdrawal, and a pressure relief.
申请公布号
DE3675651(D1)
申请公布日期
1990.12.20
申请号
DE19863675651
申请日期
1986.07.18
申请人
BECTON DICKINSON AND CO., FRANKLIN LAKES, N.J., US