Medical drainage tube

US9956330B2 · kind B2 · utility

Assignee

• ASSKEA GMBH · DE

Inventors

• Sven Hertwig · Ehingen (Donau), DE
• Marco Graf · Tamm, DE

Key dates

• Filing date: Aug 15, 2013
• Grant date: May 1, 2018
• Expiry date: Mar 25, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/7518
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medical drainage tube for treating wounds with negative pressure includes a suction tube, a suction connector, and a ventilation sleeve. The suction tube includes a suction lumen, and a ventilation lumen including a lumen outer wall and an opening. The ventilation sleeve is arranged at the opening to surround the suction tube. The ventilation sleeve includes a sleeve wall including a sleeve inner wall arranged towards the suction tube, an annular groove arranged in the sleeve inner wall, a filter compartment arranged in the sleeve wall, a bacterial filter arranged in the filter compartment, and an air inlet arranged in the filter compartment. The annular groove communicates with the opening. The bacterial filter communicates with the annular groove. The air inlet connects the bacterial filter with the atmosphere. A part of the ventilation lumen between the annular groove and a proximal end of the suction tube is sealed off.