Vascular blood flashback containment device with improved sealin

Details Vascular blood flashback containment device with improved sealin Vascular blood flashback containment device with improved sealin

1998-01-15

1999-11-16

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604900, A61M 5178

Patent

active

059848952

ABSTRACT:
A blood containment device for use with a vascular entry needle provides visual and tactile confirmation that a blood vessel has been properly entered. The device includes a blood visualization chamber defined by a compliant member which provides a visual indication that a needle connected to the device has accessed a selected blood vessel. The blood visualization chamber is vented to allow air to escape therefrom as it is displaced by blood entering the visualization chamber, while a gas permeable membrane in communication with the vent to prevent significant blood from escaping from the blood containment device. A sealing member formed on an outer surface at one end of the compliant member works in conjunction with the gas permeable membrane to prevent significant leakage of blood from the device. The compliant member pulsates with changes in blood pressure, thereby providing continuous tactile confirmation that the needle tip is properly positioned within the selected blood vessel. The device allows passage therethrough of an elongated medical instrument such as catheterization apparatus while preventing significant blood leakage from the device.

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