Pressure activated valve with high flow slit
A pressure activated valve for controlling the flow of fluid through a medical device, the pressure activated valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen of the housing to control the flow of fluid through the lumen by opening when a pressure threshold has been reached.
1. A device comprising:
a valve membrane comprising a first slit, a second slit, a third slit, a short axis, and a long axis;
wherein the valve membrane is elliptical in shape;
wherein the first slit, the second slit, and the third slit extend in a substantially similar direction and are disposed about the long axis;
wherein the first slit, the second slit and the third slit traverse the short axis but do not traverse the long axis; and
wherein the short axis bisects the long axis.
2. The device of claim 1 , further comprising a valve housing.
3. The device of claim 2 , further comprising a catheter.
4. The device of claim 3 , wherein the valve membrane is comprised of a silicone material.
5. The device of claim 4 , wherein the first slit and the second slit are configured to open when acted upon by a pressure of a predetermined threshold.
6. The device of claim 5 , wherein the third slit is configured to open independently from the first slit and the second slit.
7. The device of claim 6 , wherein the first slit and the second slit are non-linear.
8. The device of claim 7 , wherein the first slit and the second slit are curved.
9. The device of claim 8 , wherein the first slit and the second slit are substantially parallel to one another.
10. The device of claim 9 , wherein the first slit and the second slit are normal to the short axis.
11. The device of claim 10 , wherein the valve membrane is configured to prevent unintended fluid flow through the catheter.
12. A device comprising:
an elliptical valve membrane comprising a first slit, a second slit, a third slit, a short axis, and a long axis;
wherein the first slit, the second slit, and the third slit extend in a substantially similar direction, are disposed about the long axis, and traverse the short axis but do not traverse the long axis; and
wherein the short axis bisects the long axis.
13. The device of claim 12 , wherein the first slit and the second slit are normal to the short axis.
14. The device of claim 13 , further comprising a valve housing and a catheter.
15. The device of claim 14 , wherein the elliptical valve membrane is configured to seal the catheter when not in use without damaging the catheter.
16. A device comprising:
a valve membrane comprising a first slit, a second slit, a third slit, a short axis, and a long axis;
wherein the valve membrane is non-circular in shape;
wherein the third slit is disposed between the first slit and the second slit;
wherein the first slit, the second slit, and the third slit extend in a substantially similar direction, are disposed about the long axis, and traverse the short axis but do not traverse the long axis; and
wherein the short axis is configured to bisect the long axis.
17. The device of claim 16 , wherein the first slit and the second slit are non-linear.
18. The device of claim 17 , wherein the first slit and the second slit are normal to the short axis.
19. The device of claim 18 , wherein the valve membrane is comprised of a silicone material.
20. The device of claim 19 , wherein the first slit and the second slit are configured to open when acted upon by a pressure of a predetermined threshold.