Abstract: A tamper indicating device (24) is connected to the inlet (14) of an injection site (10) which inlet (14) includes a pierceable, self-sealing member (16). The tamper indicating device (24) comprises a cap (26, 28) which covers the inlet (14) rendering the pierceable, self-sealing member (16) inaccessible. A first portion (26) of the cap is connected to the inlet (14) and a second portion (28) of the cap is separated from the first portion (26) by a frangible section (30). A handle (32) extends from the second portion (28) and is operable when actuated to break the second portion (28) away from the first portion (26) at the frangible section (30), rendering the pierceable, self-sealing member (16) accessible. The first portion (26) remains connected to the inlet (14) to indicate that tampering has occurred.

Abstract: A system for infusing fluids into the human body includes a peristaltic-type metering apparatus which controls the flow of fluid through a disposable administration set at a preset rate. A compensating circuit within the metering apparatus automatically varies the operating rate of the metering apparatus to compensate for dimensional variations in the apparatus and the tubing.