Bubble trap
First Claim
Patent Images
1. A bubble trap for blood comprising:
- a closed transparent container for holding blood,said container having a top and a bottom and indicium constituting a blood level indicator,an inlet tube into said container,said inlet tube entering through said container bottom and extending upward within said container to an inlet opening and said inlet opening having a cross-sectional area smaller than the flow cross-sectional area of said container,said inlet opening being spaced below said container top and below said indicium to direct gas bubbles toward said indicium,an outlet tube from said container exiting through said container top,said outlet tube extending downward into said container to an outlet opening,said outlet opening being lower in said container than said inlet opening whereby blood flowing upward through said inlet opening into said container must subsequently flow downward to reach said outlet opening, andmeans positioned in the top of the container for removing gas from said container.
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Abstract
A bubble trap comprising a closed container for holding liquid, an inlet extending through the container bottom upward within the container to an inlet opening spaced below the container top, the container having a larger cross-sectional area exclusive of the inlet than the inlet itself, an outlet extending through the container top downward within the container to an outlet opening, the outlet opening being lower in the container than the inlet opening whereby liquid flowing upward through the inlet opening into the container must subsequently flow downward to reach the outlet opening, and means for admitting or removing gas from the container.
119 Citations
7 Claims
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1. A bubble trap for blood comprising:
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a closed transparent container for holding blood, said container having a top and a bottom and indicium constituting a blood level indicator, an inlet tube into said container, said inlet tube entering through said container bottom and extending upward within said container to an inlet opening and said inlet opening having a cross-sectional area smaller than the flow cross-sectional area of said container, said inlet opening being spaced below said container top and below said indicium to direct gas bubbles toward said indicium, an outlet tube from said container exiting through said container top, said outlet tube extending downward into said container to an outlet opening, said outlet opening being lower in said container than said inlet opening whereby blood flowing upward through said inlet opening into said container must subsequently flow downward to reach said outlet opening, and means positioned in the top of the container for removing gas from said container. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification