Patent · US Active

Vacuum generation device for vacuum treatment of wounds

US8540688B2 · kind B2 · utility

100Cited by

1References

12Claims

0Family size

Assignee

PAUL HARTMANN AG · DE

Inventors

Axel Eckstein · Heidenheim, DE
Juergen Hofstetter · Heidenheim, DE

Key dates

Filing date	May 11, 2012
Grant date	Sep 24, 2013
Priority date	—
Expiry date	May 11, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2209/088
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A portable device (2) to generate a vacuum for the medical treatment of wounds on the bodies of humans or animals has a vacuum-producing suction pump (90) in a first housing part (4) of the device and a vessel (10) for receiving body liquids. Vacuum is applied for vacuum communication between the suction pump (90), the vessel (10) and a suction tube (82) leading to the body. A pressure sensor (94) measures the pressure in a tube section (88) and a programmable electronic control unit (100) controls the suction pump (90) in dependence on pressure values measured by the pressure sensor (94). The electronic control unit (100) deactivates the suction pump (90) if a rate of change in pressure (Δp/Δt) detected by the pressure sensor (94) exceeds a defined threshold value toward decreasing vacuum.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.