System for detecting and removing a gas bubble from a vascular infusion line
First Claim
1. A system for detecting and removing a gas bubble from a vascular infusion line, the system comprising:
- a disposable cassette adapted for disposition intermediate the vascular infusion line, the disposable cassette comprising;
a body comprising an inlet port, a chamber, an outlet port, and a purge port, a first passageway connecting the inlet port to the chamber, the first passageway comprising a first bubble detection section where a gas bubble may be detected within the first passageway, a second passageway connecting the chamber with the outlet port, and a first pinch valve disposed along the second passageway intermediate the chamber and the outlet port, and a third passageway connecting the chamber with the purge port, the third passageway comprising a second bubble detection section where a gas bubble may be detected within the third passageway, a second pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, and a third pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, wherein the third pinch valve is normally disposed in an open configuration, and further wherein the third pinch valve is configured to automatically close upon the occurrence of an event.
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Accused Products
Abstract
A system for detecting and removing a gas bubble from a vascular infusion line, comprising a disposable cassette adapted for disposition intermediate the fluid line, the disposable cassette comprising a body comprising an inlet port, a chamber, an outlet port, and a purge port, a first passageway connecting the inlet port to the chamber, the first passageway comprising a first bubble detection section where a gas bubble may be detected within the first passageway, a second passageway connecting the chamber with the outlet port, and a first pinch valve disposed along the second passageway intermediate the chamber and the outlet port, and a third passageway connecting the chamber with the purge port, the third passageway comprising a second bubble detection section where a gas bubble may be detected within the third passageway, and a second pinch valve disposed along the third passageway intermediate the chamber and the bubble detection section.
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Citations
13 Claims
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1. A system for detecting and removing a gas bubble from a vascular infusion line, the system comprising:
a disposable cassette adapted for disposition intermediate the vascular infusion line, the disposable cassette comprising; a body comprising an inlet port, a chamber, an outlet port, and a purge port, a first passageway connecting the inlet port to the chamber, the first passageway comprising a first bubble detection section where a gas bubble may be detected within the first passageway, a second passageway connecting the chamber with the outlet port, and a first pinch valve disposed along the second passageway intermediate the chamber and the outlet port, and a third passageway connecting the chamber with the purge port, the third passageway comprising a second bubble detection section where a gas bubble may be detected within the third passageway, a second pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, and a third pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, wherein the third pinch valve is normally disposed in an open configuration, and further wherein the third pinch valve is configured to automatically close upon the occurrence of an event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A method for detecting and removing a gas bubble from a vascular infusion line, the method comprising:
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providing a system comprising; a disposable cassette adapted for disposition intermediate the vascular infusion line, the disposable cassette comprising; a body comprising an inlet port, a chamber, an outlet port, and a purge port, a first passageway connecting the inlet port to the chamber, the first passageway comprising a first bubble detection section where a gas bubble may be detected within the first passageway, a second passageway connecting the chamber with the outlet port, and a first pinch valve disposed along the second passageway intermediate the chamber and the outlet port, and a third passageway connecting the chamber with the purge port, the third passageway comprising a second bubble detection section where a gas bubble may be detected within the third passageway, a second pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, and a third pinch valve disposed along the third passageway intermediate the chamber and the second bubble detection section, wherein the third pinch valve is normally disposed in an open configuration, and further wherein the third pinch valve is configured to automatically close upon the occurrence of an event; connecting a fluid source to the inlet port of the disposable cassette, and connecting the outlet port of the disposable cassette to a patient side of the vascular infusion line; and allowing fluid to flow past the first pinch valve, and preventing fluid from flowing past the second pinch valve, when no gas bubble is detected in fluid flowing through the first bubble detection section; and
preventing fluid from flowing past the first pinch valve, and allowing fluid to flow past the second pinch valve, when a gas bubble is detected in fluid flowing through the first bubble detection section. - View Dependent Claims (11, 12)
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Specification