Patent ID: 6695820
Filing Date: 2004-02-24
Classification: A61M

Abstract:
A bleed back control assembly comprising:a body having a proximal end, a distal end, and a lumen connecting the proximal and distal ends; a seal cavity formed in the proximal end of the body, wherein the seal cavity has an interior distal surface including an aperture allowing fluid communication between the lumen of the body and the seal cavity; a single elastomeric seal contained within the seal cavity, the elastomeric seal having an aperture, which is closed unless acted upon, wherein the elastomeric seal includes a top cylindrical section having a lumen, a bottom cylindrical section with a lumen having a larger diameter tan the top cylindrical section lumen, and a web area dividing the lumen of the top cylindrical section from the lumen of the bottom cylindrical section; a seal holder having an interior chamber, wherein the seal holder is bonded to the seal cavity, and the elastomeric seal is located within the interior chamber of the seal holder; and a cap assembly coupled to the proximal end of the body.