The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1996
Filed:
Dec. 08, 1994
Hans-Joachim Kuhn, Wiesbaden, DE;
Heraeus Instruments GmbH, Hanau, DE;
Abstract
A ventilation bag for a manually operable ventilation device for the artificial ventilation of humans. The bag is made of an elastic, gastight material in the form of an elongated hollow body, with an essentially circular cross section perpendicular to its longitudinal axis with gripping surfaces for differentiated reduction of the volume of the hollow body along its length and having an air inlet opening at one end and an air outlet opening at the other end. To be able to administer different ventilation volumes with relatively greater accuracy and to reduce fatigue to a minimum, the gripping surfaces are arranged, essentially concentrically about the longitudinal axis and one behind the other in the direction of the longitudinal axis, at at least one end of the hollow body, the diameter of the hollow body decreasing toward that at least one end having the gripping surfaces.