초록 ▼

An arterial line blood filter for use in extracorporeal blood circuits during heart bypass surgery. The blood filter includes a housing having a cap portion, a base portion and a generally cylindrical wall portion. A filter element is disposed within the housing and divides the housing into an inlet

An arterial line blood filter for use in extracorporeal blood circuits during heart bypass surgery. The blood filter includes a housing having a cap portion, a base portion and a generally cylindrical wall portion. A filter element is disposed within the housing and divides the housing into an inlet chamber in flow communication with a blood inlet and an outlet chamber in flow communication with a blood outlet. The filter element may include a plurality of concentric annular pleats, the length of which may be substantially equal to the length of the wall portion, the pleats being supported by a support element. In another embodiment the inner surface of the cap defines an inwardly spiral blood flow path which slopes upward and provides an effective means of distributing blood over the filter element.

대표청구항 ▼

A blood filter comprising: a housing having a cap portion, a base portion and a generally cylindrical wall portion; a blood inlet; a filter element disposed within the housing and dividing the housing into an inlet chamber in flow communication with the blood inlet and an outlet chamber, the filter

A blood filter comprising: a housing having a cap portion, a base portion and a generally cylindrical wall portion; a blood inlet; a filter element disposed within the housing and dividing the housing into an inlet chamber in flow communication with the blood inlet and an outlet chamber, the filter element having a plurality of concentric annular pleats; a support element fixedly connected to the housing, the support element having a plurality of concentric annular members nested within the annular pleats of the filter element; a blood outlet in flow communication with the outlet chamber; a gas vent in gas flow communication with the inlet chamber; and a volume displacing element disposed within an innermost annular pleat of the filter element, the volume displacing element comprising an extension of the cap portion.