LEVER FOR AUTO INSERTION AND SECURE PLACEMENT OF IV TUBING FOR USE IN INTRAVENOUS PUMP SYSTEMS
First Claim
1. A lever, comprising:
- a far end configured to engage an infusion tubing;
a pivot end configured to fit into a shaft and to allow the lever to rotate about a shaft axis, the pivot end comprising a pocket to capture a spring having a leg protruding outside of the pocket, wherein the spring is configured to bias the lever against a door assembly;
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, whereinthe pusher is configured to apply 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.
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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.
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Citations
20 Claims
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1. A lever, comprising:
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a far end configured to engage an infusion tubing; a pivot end configured to fit into a shaft and to allow the lever to rotate about a shaft axis, the pivot end comprising a pocket to capture a spring having a leg protruding outside of the pocket, wherein the spring is configured to bias the lever against a door assembly; 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, wherein the pusher is configured to apply 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. - View Dependent Claims (2, 3, 4)
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5. A pump casing, comprising:
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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 bezel configured to support a shaft; a lever mounted on the shaft, the lever comprising; a pivot end configured to fit into the shaft and to allow the lever to rotate about a shaft axis, the pivot end comprising a pocket to capture a spring having a spring leg protruding outside of the lever, wherein the spring is configured to bias the lever against a door assembly; and a far end configured to engage the infusion tubing to overlap the gap formed by the two sensing elements of the air-in-line sensor 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 (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for delivering a medication to a patient, the method comprising:
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opening a door assembly to expose a chassis of an infusion pump, the chassis comprising a seat adjacent to an air-in-line sensor, and the air-in-line sensor comprising two sensing elements disposed on two sides of a gap; loading an infusion tubing to the infusion pump; closing the door assembly over the chassis while allowing a far end of a lever to pivot about a shaft and to push the infusion tubing into the gap in the air-in-line sensor; and activating the pump to deliver the medication to the patient when an indicator in the air-in-line sensor indicates that the infusion tubing properly overlaps the gap. - View Dependent Claims (17, 18, 19, 20)
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Specification