Lever for auto insertion and secure placement of IV tubing for use in intravenous pump systems
First Claim
1. A pump casing, comprising:
- a door assembly hinging over a chassis to hold an infusion tubing when closed;
an air-in-line sensor mounted at a bottom end of the chassis, the air-in-line sensor comprising two sensing elements disposed on two sides of a gap;
a shaft;
a bezel configured to support the shaft;
a lever mounted on the shaft, the lever comprising;
a pivot end configured to fit onto the shaft and to allow the lever to rotate about a shaft axis, the pivot end comprising a spring and a pocket configured to capture the spring, the spring having a spring leg protruding outside of the lever, wherein the spring is configured to bias the lever against the door assembly, and wherein the chassis comprises a groove configured to receive the spring leg; and
a far end configured to engage the infusion tubing to overlap the gap when the door assembly is closed; and
a reinforced rib on an interior wall of the door assembly to engage the lever as the door assembly rotates to close over the chassis.
1 Assignment
0 Petitions
Accused Products
Abstract
A lever including a far end to engage an infusion tubing is provided. The lever includes a pivot end configured to fit into a shaft and to allow the lever to rotate about a shaft axis, the pivot end including a pocket to capture a spring having a leg protruding outside. The spring is configured to apply a bias from the lever against a door assembly. The lever includes a tab disposed on an outer side of the far end and configured to interface with the door assembly, and a pusher protruding into an inner side of the far end and configured to contact the infusion tubing when the far end engages the infusion tubing. The pusher applies a downward pressure to the infusion tubing when the door assembly is closed until the infusion tubing is properly aligned with an air-in-line sensor disposed on both sides of the tubing.
-
Citations
15 Claims
-
1. A pump casing, comprising:
-
a door assembly hinging over a chassis to hold an infusion tubing when closed; an air-in-line sensor mounted at a bottom end of the chassis, the air-in-line sensor comprising two sensing elements disposed on two sides of a gap; a shaft; a bezel configured to support the shaft; a lever mounted on the shaft, the lever comprising; a pivot end configured to fit onto the shaft and to allow the lever to rotate about a shaft axis, the pivot end comprising a spring and a pocket configured to capture the spring, the spring having a spring leg protruding outside of the lever, wherein the spring is configured to bias the lever against the door assembly, and wherein the chassis comprises a groove configured to receive the spring leg; and a far end configured to engage the infusion tubing to overlap the gap when the door assembly is closed; and a reinforced rib on an interior wall of the door assembly to engage the lever as the door assembly rotates to close over the chassis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification