초록 ▼

An apparatus for sensing characteristics of a substance, such as blood, including a membrane support having first and second recesses and first and second dissimilar membranes extending over the first and second recesses, respectively. The membrane support has a groove between the recesses, and edge

An apparatus for sensing characteristics of a substance, such as blood, including a membrane support having first and second recesses and first and second dissimilar membranes extending over the first and second recesses, respectively. The membrane support has a groove between the recesses, and edge portions of the membranes extend into the groove on the side thereof adjacent the first recess. A retaining bar is received within the groove, and the membranes are tightly held between the retaining bar and the wall of the groove to form a smooth, essentially continuous surface. The membrane support forms a portion of a flow passage so that blood can flow along the membranes. First and second sensors are mounted on the sides of the first and second membranes opposite the flow passage for sensing characteristics of the blood. The first and second sensors engage the first and second membranes, respectively, to tension the membranes.

대표청구항 ▼

A membrane support apparatus comprising: a membrane support having first and second recesses; first and second membranes extending over the first and second recesses, respectively, said first and second membranes being permeable to at least a component of a liquid; means for mounting the first and s

A membrane support apparatus comprising: a membrane support having first and second recesses; first and second membranes extending over the first and second recesses, respectively, said first and second membranes being permeable to at least a component of a liquid; means for mounting the first and second membranes on the membrane support with the membranes extending over the first and second recesses, respectively; said mounting means including a groove in the membrane support between the recesses, edge portions of said membranes extending into said groove; said mounting means including means for retaining the edge portions in said groove; and said edge portions of said first membrane extending into said groove on a side thereof adjacent the first recess, and said second membrane extending over said retaining means on a side thereof facing outwardly of said groove and then extending into said groove to thereby form a smooth transition with said first membrane.