Drip chamber and/or expansion chamber with integral filter
AssigneeGambro Dialysatoren GmbH & Co. KG
InventorsHerbert Raabe, Gottfried Recktenwald
Life of this patent
Estimating the term…
Abstract
Drip chambers and expansion chambers for the transfer of blood are disclosed, including a housing, an entry port in the upper portion of the housing, an exit port in the lower portion of the housing, and at least one filter integral with either the upper or lower housing portions. Methods for manufacturing these chambers are also disclosed.
Claims27
A chamber for the transfer of blood comprising a housing having a first cross-sectional area, said housing including an upper portion and a lower portion, entry means in one of said upper and lower portions of said housing, exit means in the other of said upper and lower portions of said housing, at least one of said entry means and said exit means having a second cross-sectional area, said second cross-sectional area being less than said first cross-sectional area, and at least one filter means positioned between said entry means and said exit means for filtering said blood as it is being transferred through said at least one of said entry means and said exit means, said at least one filter means integrally formed as a non-welded single unit with at least one of said upper and said lower portions of said housing.
Dependencies are inferred from the claim text.