A medical device may include an extravascular system, a vascular access device attached to the system, and at least one access port attached to the device capable of displacing stagnant fluid within the extravascular system. A method for eliminating stagnant fluid within an extravascular system may
A medical device may include an extravascular system, a vascular access device attached to the system, and at least one access port attached to the device capable of displacing stagnant fluid within the extravascular system. A method for eliminating stagnant fluid within an extravascular system may include providing an extravascular system, providing a vascular access device having an access port, attaching the device to the system via the access port, accessing the access port with a separate vascular access device, and displacing stagnant fluid within the extravascular system.
대표청구항▼
The invention claimed is: 1. A medical device for eliminating stagnant fluid within an extravascular system, comprising: an extravascular system; a vascular access device attached to the extravascular system; and at least one access port attached to the vascular access device, wherein access of the
The invention claimed is: 1. A medical device for eliminating stagnant fluid within an extravascular system, comprising: an extravascular system; a vascular access device attached to the extravascular system; and at least one access port attached to the vascular access device, wherein access of the access port displaces stagnant fluid within the extravascular system, the access port comprising a cam valve, wherein the cam value includes two unattached halves, wherein each of the two unattached halves are compressed by separate springs, wherein each of the separate springs is coupled to one of the separable halves of the cam valve and to the housing. 2. The medical device of claim 1, wherein the two unattached halves open when a separate vascular access device is inserted into the valve. 3. The medical device of claim 2, wherein the cam valve closes when a separate vascular access device is removed from the access port, causing the cam valve to expel fluid. 4. The medical device of claim 1, further comprising an active fluid path within the extravascular system, wherein the cam valve is in direct contact with the active fluid path. 5. The medical device of claim 4, further comprising an extensible housing of the extravascular system, wherein the access port is secured to extensible housing. 6. The medical device of claim 5, further comprising a positive stop within the active fluid path of the extravascular system and opposite the cam valve. 7. The medical device of claim 6, wherein the extensible housing extends when a separate vascular access device accesses the cam valve and exerts force against the positive stop. 8. The medical device of claim 4, wherein the cam valve is at an obtuse angle in relation to the fluid path downstream from the cam valve. 9. The medical device of claim 4, wherein the cam valve includes a septum having a convex bottom surface in contact with the active fluid path. 10. The medical device of claim 1, wherein the separate springs are coil springs. 11. The medical device of claim 1, wherein each of the two separable halves of the cam valve includes an interior and exterior portion, and wherein the exterior portions of the two separable halves include a tapered surface. 12. The medical device of claim 11, wherein the interior portion of each of the two separable halves of the cam valve includes a tapered surface. 13. A medical device, comprising: a body; an access port providing fluid access to the interior of the body; a cam valve disposed within the body, the cam valve including two unattached halves, wherein each of the two unattached halves are compressed by a separate spring and wherein each of the separate springs is coupled to one of the separable halves of the cam valve and to the housing; and means for displacing stagnant fluid within the cam valve. 14. The medical device of claim 13, wherein each of the two separable halves of the cam valve includes an interior and exterior portion, and wherein the exterior portions of the two separable halves include a tapered surface. 15. The medical device of claim 14, wherein the interior portions of the two separable halves include a tapered surface. 16. A medical device for eliminating stagnant fluid within an extravascular system, comprising: an extravascular system having an extensible housing and a fluid path within the extravascular system; a vascular access device secured to the extensible housing of the extravascular system, wherein the vascular access device bisects the fluid path; an access port attached to the vascular access device wherein the access port is a cam valve having two separable halves each of which are compressed by a separate spring; wherein each of the separate springs is coupled to one of the separable halves of the cam valve and to the housing; and a positive stop within the active fluid path of the extravascular system and opposite the access port. 17. The medical device of claim 16, wherein the access port further includes a septum having a convex bottom surface in contact with the fluid path. 18. The medical device of claim 17, wherein the access port is at an obtuse angle in relation to the fluid path downstream from the access port.
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