Vascular blood containment device

Details Vascular blood containment device Vascular blood containment device

A - Human Necessities

61

J

A61J 1/14 (2006.01) A61M 25/01 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2134301

VASCULAR BLOOD CONTAINMENT DEVICE ABSTRACT OF THE DISCLOSURE A blood containment, visualization and tactile confirmation device is provided for use with a vascular entry needle. The device includes a visualization channel and/or a complaint outer wall portion which indicates whether a needle connected to the device has entered a selected blood vessel. The visualization channel is vented to the outside to allow displaced air to escape, but has a gas permeable member to prevent blood from escaping. The visualization channel may have one, two, or more stages, with a first stage chamber which indicates initial penetration of a selected blood vessel, and a second stage chamber which fills more slowly and indicates that the needle remains positioned within the blood vessel. A third stage chamber with entrapped air which compresses slightly due to the heartbeat may also be used. Preferably, a compliant outer wall portion pulses with changes in blood pressure, thereby providing a tactile indication that the needle tip is properly positioned. The device has a guideway with a barrier of elastomeric material which prevents blood from passing therethrough, but which allows passage of an elongated medical instrument such as catheterization apparatus.

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