Filament-based catheter

摘要

A membrane-free perfusion catheter comprising an exchange surface having a filament structure, a delivery unit for delivery of perfusion fluid to a lumen of the filament structure in a manner to allow for an exchange of substances between a medium surrounding the lumen and the perfusion fluid via the filament structure, and a drain unit for draining the medium surrounding the exchange surface and/or for draining the perfusion fluid delivered to the lumen of the filament structure after the exchange of substances between the medium surrounding the lumen and the perfusion fluid via the filament structure.

主权项

1. A membrane-free perfusion catheter system comprising:
a catheter structure formed by an exchange surface having a filament structure; a delivery unit for delivery of perfusion fluid to a lumen of the filament structure in a manner to allow for a bidirectional exchange of substances between a medium surrounding the lumen and the perfusion fluid via the filament structure; and a drain unit for draining the medium surrounding the exchange surface or for draining the perfusion fluid delivered to the lumen of the filament structure after the exchange of substances between the medium surrounding the lumen and the perfusion fluid via the filament structure; wherein a one dimensional extension of gaps formed between filaments of the filament structure is larger than 1 μm; wherein at least one of the delivery unit and the drain unit comprises a fluid transport unit for transporting the fluid through the lumen of the filament structure with a flow rate in a range between 0.1 μl/minute and 10 μl/minute.