Catheter system for pulsatile flow visualization and blood containment

A catheter system, comprising:

• a catheter adapter, comprising a distal end, a proximal end, and a side port in between the distal end of the catheter adapter and the proximal end of the catheter adapter;
• a catheter extending distally from the distal end of the catheter adapter;
• an extension tubing comprising a distal end and a proximal end, wherein the distal end of the extension tubing is coupled to the side port;
• a connector coupled to the proximal end of the extension tubing, wherein the connector comprises a distal end, a proximal end, a lumen extending through the distal end of the connector and the proximal end of the connector, and a slot disposed between the distal end of the connector and the proximal end of the connector, wherein the lumen is in fluid communication with the extension tubing;
• and
• a button disposed within the slot, wherein the button comprises a venting pathway extending through the button, wherein the venting pathway comprises a first end and a second end laterally offset from the first end, wherein the venting pathway is configured to pass air and not blood, wherein when the button is in a raised position, the first end is blocked from fluid communication with the lumen and the second end is in fluid communication with ambient air, wherein when the button is depressed, the first end is disposed within the lumen and the second end is in fluid communication with ambient air such that air vents through the venting pathway from the lumen into the ambient air.

A catheter system, comprising:

• a catheter adapter, comprising a distal end, a proximal end, and a side port in between the distal end of the catheter adapter and the proximal end of the catheter adapter;
• a catheter extending distally from the distal end of the catheter adapter;
• an extension tubing comprising a distal end, a proximal end, and a window disposed between the distal end of the extension tubing and the proximal end of the extension tubing, wherein the distal end of the extension tubing is coupled to the side port, wherein the window comprises a membrane filter therein, wherein the membrane filter is configured to pass air and not blood thereby preventing blood from exiting the window;
• a connector coupled to the proximal end of the extension tubing, wherein the connector comprises a distal end, a proximal end, a lumen extending through the distal end of the connector and the proximal end of the connector, wherein the lumen is in fluid communication with the extension tubing;
• a cover configured to cover the window to block fluid communication between a lumen of the extension tubing and the ambient air, wherein the cover is configured to be rotated or slid with respect to the extension tubing to uncover the window and allow the air to pass through membrane filter from the lumen of the extension tubing to the ambient air.

A catheter system, comprising:

• a catheter adapter, comprising a distal end, a proximal end, and a side port in between the distal end of the catheter adapter and the proximal end of the catheter adapter;
• a catheter extending distally from the distal end of the catheter adapter;
• an extension tubing comprising a distal end and a proximal end, wherein the distal end of the extension tubing is coupled to the side port;
• a connector coupled to the proximal end of the extension tubing, wherein the connector comprises a distal end, a proximal end, and a lumen extending through the distal end of the connector and the proximal end of the connector, wherein the lumen is in fluid communication with the extension tubing;
• and
• a first cap threadedly coupled to the proximal end of the connector, wherein the first cap comprises a male luer disposed within the proximal end of the connector and a venting pathway extending through the male luer, wherein the venting pathway is configured to pass air and not blood;
• a lock piece comprising an aperture therethrough, wherein the lock piece prevents the first cap from being unthreaded from the proximal end of the connector;
• a second cap extending through the aperture and forming a seal inside the male luer, wherein the lock piece is configured to be removed from the catheter system with the second cap before the first cap can be unthreaded from the proximal end of the connector.

A catheter system, comprising:

• a catheter adapter, comprising a distal end, a proximal end, and a side port in between the distal end of the catheter adapter and the proximal end of the catheter adapter;
• a catheter extending distally from the distal end of the catheter adapter;
• an extension tubing comprising a distal end and a proximal end, wherein the distal end of the extension tubing is coupled to the side port;
• a connector coupled to the proximal end of the extension tubing, wherein the connector comprises a distal end, a proximal end, and a lumen extending through the distal end of the connector and the proximal end of the connector, wherein the lumen is in fluid communication with the extension tubing;
• a vent plug coupled to the catheter system and movable between a first position and a second position when coupled to the catheter system, wherein the vent plug comprises a venting pathway extending through the vent plug, wherein the venting pathway is configured to pass air and not blood, wherein in response to the vent plug being moved from the first position to the second position, the venting pathway is in fluid communication with the lumen such that air vents through the venting pathway from the lumen into the ambient air.