Patent ID: 11957855
Assignee: NEURAVI LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A balloon guide catheter comprising:
a catheter shaft having an outer surface, a proximal end, and an opposite distal end; the catheter shaft having an inner surface forming a main lumen defined therein extending axially therethrough from the proximal end to the distal end; the main lumen being configured to receive a guidewire therein; the catheter shaft between the inner and outer surfaces having an arc shape inflation lumen defined axially therein arranged semi-encircling the main lumen; the catheter shaft having an inlet vent defined in the outer surface radially outward from the inner surface of the catheter shaft and in fluid communication with the inflation lumen; and the catheter shaft having a first exhaust vent disposed longitudinally through a distal terminating end of the inflation lumen coinciding with a distal terminating end of the main lumen;
a first porous membrane disposed at the first exhaust vent within the distal terminating end of the inflation lumen; the first porous membrane having a plurality of holes defined therein sized to permit only gas to pass therethrough; and
an expandable balloon secured about the outer surface of the catheter shaft proximate the distal end of the catheter shaft and coinciding with the inlet vent.