Peristaltic infusion pump with locking mechanism
First Claim
1. An interface unit body configured to be engaged to an infusion pump wherein the infusion pump includes a key, the interface unit body comprising:
- a housing to receive a tube; and
an anti-free flow mechanism including at least three mechanical states;
(1) a safety default closed state to prevent flow of fluid through the tube when disengaged from the infusion pump,(2) a mechanically latched open state to override the safety default closed state when disengaged from the infusion pump, and(3) a default open state to allow controlled flow of fluid through the tube when engaged to the infusion pump,wherein said anti free flow mechanism is caused to transition to said safety default closed state upon disengagement of the interface unit body from the infusion pump by the key.
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Accused Products
Abstract
A medical device includes an interface unit body, which is configured to hold a portion of a flexible infusion tube. A hinge insert is fixed to the interface unit body and is configured to engage a hinge receptacle, which defines a hinge axis, on an infusion pump. A catch insert is fixed to the interface unit body and is configured to lock onto a catch receptacle on the infusion pump upon rotation of the mechanical interface unit about the hinge axis while the hinge insert engages the hinge receptacle, so as to bring the tube into engagement with a peristaltic mechanism of the infusion pump in order to enable the peristaltic mechanism to propel a fluid through the tube.
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Citations
6 Claims
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1. An interface unit body configured to be engaged to an infusion pump wherein the infusion pump includes a key, the interface unit body comprising:
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a housing to receive a tube; and an anti-free flow mechanism including at least three mechanical states; (1) a safety default closed state to prevent flow of fluid through the tube when disengaged from the infusion pump, (2) a mechanically latched open state to override the safety default closed state when disengaged from the infusion pump, and (3) a default open state to allow controlled flow of fluid through the tube when engaged to the infusion pump, wherein said anti free flow mechanism is caused to transition to said safety default closed state upon disengagement of the interface unit body from the infusion pump by the key. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification