Patent · US Expired

Suction device for medical purposes

US5964733A · kind A · utility

17Cited by

1References

6Claims

0Family size

Inventors

Walter Laabs · Schortens, DE
Hans Appel · Penzberg, DE

Key dates

Filing date	Dec 21, 1998
Grant date	Oct 12, 1999
Priority date	—
Expiry date	Dec 21, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S604/902
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a suction device for medical purposes with one or more side apertures and with a valve which responds to a vacuum. The invention is characterised in that the side apertures are covered by film halves which overlap in the middle, one of said halves being made from highly elastic thin material while the other is made from a stiff inflexible material and covers the flexible film in the overlap region. The side apertures can also take the form of elongated apertures. An advantage of this embodiment is the low damage to tissue when used in the overpressure area especially in minimally invasive surgical applications.

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