Non-luer compatible administration port
The present disclosure provides a medical connector for enteral applications. The medical connector includes a body portion having a distal patient access fitting and a proximal fluid delivery device fitting as well as an administration port. The administration port for administrating or extracting fluids or medicine includes a cylindrical cavity, an administration port seal having a normally-closed slit, a plunger, a plunger sleeve, and a compression member. Engaging a non-luer female tip with the administration port actuates the compression member such that the plunger pierces the normally-closed slit, causing it to open allowing fluid communication with the body portion.
1. A three port medical connector for enteral applications, the medical connector comprising:
a body portion having
a first port including a distal patient access fitting,
a second port including a proximal fluid delivery device fitting,
a fluid flow path formed between the first and second ports,
a fluid flow controller disposed between the first and second ports for controlling a flow of fluid within the fluid flow path; and
a third administration port used to administer or withdraw fluids from the fluid flow path and to prevent connection of the third administration port to a luer-type syringe, the third administration port comprising:
a first cylindrical cavity including internally facing threads dimensioned to receive externally facing threads of an ISO/ANSI 80369-3 compliant non-luer female connector,
an administration port seal having a single normally-closed slit located substantially in a center of the seal for accessing the fluid flow path, wherein opening the single slit creates an open fluid flow path through the administration port seal,
a plunger comprising a second cylindrical cavity and an external ring disposed outside the second cylindrical cavity,
and
a spring received in the external ring of the plunger that biases the plunger away from the single slit, wherein when said externally threaded non-luer female connector screws into said first cylindrical cavity and engages said internally facing threads the non-luer female connector causes the plunger to compress the spring and move towards the single slit such that an end of the plunger opens the single normally-closed slit wherein the external ring is disposed about the spring such that a downward force on the external ring actuates the spring.
2. The medical connector of claim 1 , wherein the plunger is made of a non-uniform composition.
3. The medical connector of claim 2 , wherein the plunger comprises a top portion and a bottom portion, wherein the top portion is made of a material softer than the bottom portion.
4. The medical connector of claim 3 , wherein the top portion is made of santoprene.
5. The medical connector of claim 3 , wherein the bottom portion is made of high-density polyethylene (HDPE) or high-density polypropylene (HDPP).
6. The medical connector of claim 3 , wherein the top portion comprises a chamfered edge.
7. The medical connector of claim 3 , wherein the ring is made of the same material as the top portion.
8. The medical connector of claim 3 , wherein the top portion, the ring, and/or the bottom portion is made of a blended formulation comprising high-density polyethylene (HDPE) or high-density polypropylene (HDPP) and santoprene, wherein a proportion of the HDPE or HDPP ranges from about 5-15%.
9. The medical connector of claim 1 , wherein the second cylindrical cavity has an elongated tapered shape extending throughout an inside of the plunger and has an internal diameter nominally of 2.9 mm at a first end and an internal diameter nominally of 3.9 mm at a second end.
10. The medical connector of claim 1 , wherein the first cylindrical cavity comprises a complementary threaded sector to the ISO/ANSI 80369-3 compliant non-luer female connector, and
wherein the ISO/ANSI 80369-3 compliant non-luer female connector engages with the third administration port using a rotational movement, causing an at least one threaded sector of the ISO/ANSI 80369-3 compliant non-luer female connector to traverse the complementary threaded sector.
11. The medical connector of claim 10 , wherein the cylindrical cavity has dimensions in compliance with dimensions set forth in AAMI/CN3:2014 and ISO/ANSI 80369-3.
12. The medical connector of claim 11 , wherein the ISO/ANSI 80369-3 compliant non-luer female connector has dimensions in compliance with AAMI/CN3:2014.
13. The medical connector of claim 1 , wherein the distal patient access fitting has a fluid flow path having an internal diameter nominally of 2.9 mm.
14. The medical connector of claim 1 , wherein the proximal fluid delivery device fitting has a fluid flow path having an internal diameter nominally of 2.9 mm.
15. The medical connector of claim 1 , wherein a fluid flow path of the distal patient access fitting and a fluid flow path of the proximal fluid delivery device fitting have diameters nominally of 2.9 mm.
16. The medical connector of claim 1 , wherein the fluid flow controller is disposed between the administration port seal and the proximal fluid delivery device fitting.
17. The medical connector of claim 16 , wherein the fluid flow controller is a manually operated turn handle that has fixed stop positions for both an on and off fluid flow positions.
18. The medical connector of claim 17 , wherein when the turn handle is at the on fluid flow position, the distal patient access fitting, the proximal fluid delivery device fitting, and the administration port are all in fluid communication with the fluid flow path positioned within the body portion.
19. The medical connector of claim 1 , wherein the proximal fluid delivery device fitting is permanently attached to an enteral feeding administration set.