Curvilinear peristaltic pump having insertable tubing assembly

A tubing assembly for use in a peristaltic pump having a housing defining a support member which includes first and second recesses disposed therein, a platen member attached to the housing, a rotatable cam disposed within the housing, and a plurality of pump fingers movably attached to the housing and cooperatively engaged to the cam such that the rotation of the cam sequentially moves the pump fingers outwardly toward and inwardly away from the platen member, the tubing assembly comprising:

• a length of resilient tubing;
• a tubing locator pin attached to the tubing and removably insertable into the first recess;
• and
• a shut-off valve attached to the tubing and removably insertable into the second recess, the shut-off valve being operable to selectively obstruct the flow of liquid through the tubing;
• wherein the tubing locator pin and the shut-off valve are attached to the tubing at locations whereat a portion of the tubing is extended over the pump fingers when the tubing locator pin and the shut-off valve are removably inserted into respective ones of the first and second recesses within the support member of the housing.

A shut-off valve for use in a tubing assembly comprising a length of resilient tubing, the shut-off valve comprising:

• a valve body having an opening therein for permitting the passage of the tubing therethrough;
• a single pinch arm movably attached to the valve body and engagable to the tubing passing through the opening, the shut-off valve being configured such that the tubing resides within the pinch arm and the valve body when advanced through the opening;
• and
• a spring which extends between the valve body and the pinch arm;
• the pinch arm being movable between an open position whereat the tubing passing through the valve body is not compressed by the pinch arm, and a closed position whereat the tubing passing through the valve body is collapsed by the compression thereof between the pinch arm and the valve body, the spring normally biasing the pinch arm to the closed position.

An administration set for use with a curvilinear peristaltic pump having a housing which includes at least one recess disposed therein, a plurality of pump fingers movably attached to the housing, a drive unit disposed within the housing for sequentially moving the pump fingers, and a sensor disposed within the housing for detecting the presence of the administration set, the administration set comprising:

• a length of straight line, resilient tubing;
• and
• at least one locating member positionable upon the tubing at a location whereat the locating member is removably insertable into the recess and operative to trip the sensor when a portion of the tubing is extended over the pump fingers;
• the tripping of the sensor being required to facilitate the activation of the drive unit.

An administration set for use with a curvilinear peristaltic pump having a housing which includes at least one recess disposed therein and a sensor disposed within the housing for detecting the presence of the administration set, the administration set comprising:

• a length of straight line, resilient tubing;
• and
• at least one locating member positionable upon the tubing at a location whereat the locating member is removably insertable into the recess and operative to trip the sensor when a portion of the tubing is cooperatively engaged to the pump;
• the tripping of the sensor being required to facilitate the operation of the pump.

A shut-off valve for use in a tubing assembly comprising a length of resilient tubing, the shut-off valve comprising:

• a valve body having an opening therein for permitting the passage of the tubing therethrough;
• a single pinch arm movably attached to the valve body and engagable to the tubing passing through the opening, the shut-off valve being configured such that the tubing extends between the pinch arm and the valve body when advanced through the opening;
• and
• a biasing member cooperatively engaged to the pinch arm;
• the pinch arm being movable between an open position whereat the tubing passing through the valve body is not compressed by the pinch arm, and a closed position whereat the tubing passing through the valve body is collapsed by the compression thereof between the pinch arm and the valve body, the pinch arm normally being biased to the closed position by the biasing member and including a breakable detent tab formed thereon which maintains the pinch arm in the open position, with the removal of the detent tab from the pinch arm resulting in the movement of the pinch arm to the closed position.