IV membrane attachment systems and methods
First Claim
1. 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;
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; and
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;
wherein the seat of the exterior wall inserts into the recess of the secondary exterior wall to secure the exterior wall to the secondary exterior wall, and wherein a periphery of the anti-run-dry membrane extends into the recess and is secured between the seat and the inner ring.
1 Assignment
0 Petitions
Accused Products
Abstract
An intravenous delivery system may have a liquid source containing a liquid, tubing, and an anti-run-dry membrane positioned such that the liquid, flowing form the liquid source to the tubing, passes through the anti-run-dry membrane. The anti-run-dry membrane may be positioned within an exterior wall of a drip unit, and may be secured to a seat of the exterior wall by an attachment component. The attachment component may have various forms, such as a secondary exterior wall that cooperates with the exterior wall to define a drip chamber, a washer positioned such that the anti-run-dry membrane is between the washer and the seat, and an adhesive ring formed of a pressure sensitive adhesive and secured to the anti-run-dry membrane and the seat via compression. Interference features may protrude inward from the exterior wall or outward from the anti-run-dry membrane to help keep the anti-run-dry membrane in place.
106 Citations
20 Claims
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1. 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; 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; and 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; wherein the seat of the exterior wall inserts into the recess of the secondary exterior wall to secure the exterior wall to the secondary exterior wall, and wherein a periphery of the anti-run-dry membrane extends into the recess and is secured between the seat and the inner ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. 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. - View Dependent Claims (15, 16, 17)
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18. 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. - View Dependent Claims (19, 20)
Specification