IV membrane attachment systems and methods

An intravenous delivery system comprising:

• a drip unit comprising:
• an exterior wall shaped to at least partially define a drip chamber that receives a liquid from a liquid source, the exterior wall comprising a seat;
• a secondary exterior wall that cooperates with the exterior wall to define the drip chamber, wherein the secondary exterior wall includes an outer ring and an inner ring spaced apart from the outer ring to thereby form a recess between the outer and inner rings, the ring being configured to receive the seat to thereby secure the exterior wall to the secondary exterior wall;
• and
• an anti-run-dry membrane comprising a plurality of pores that are permeable to the liquid, wherein the anti-run-dry membrane is formed of a hydrophilic material configured to resist passage of air through the pores, the anti-run-dry membrane being positioned between the exterior wall and the secondary exterior wall, wherein a periphery of the anti-run-dry membrane is secured within the recess.

An intravenous delivery system comprising:

• a drip unit comprising:
• an exterior wall shaped to at least partially define a drip chamber that receives a liquid from a liquid source, the exterior wall comprising a seat;
• a secondary exterior wall that cooperates with the exterior wall to define the drip chamber, wherein the secondary exterior wall includes an outer ring and an inner ring spaced apart from the outer ring to thereby form a recess between the outer and inner rings, the ring being configured to receive the seat to thereby secure the exterior wall to the secondary exterior wall;
• and
• an anti-run-dry membrane comprising a plurality of pores that are permeable to the liquid, wherein the anti-run-dry membrane is formed of a hydrophilic material configured to resist passage of air through the pores, the anti-run-dry membrane being positioned between the exterior wall and the secondary exterior wall, the anti-run-dry membrane including a first attachment surface and a second attachment surface opposite the first attachment surface, the first attachment surface abutting the seat and the second attachment surface abutting the recess when the exterior wall is secured to the secondary exterior wall to thereby secure the anti-run-dry membrane between the exterior wall and the secondary exterior wall.