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:
Feb. 23, 1999
Filed:
Nov. 15, 1995
Applicant:
Inventor:
Matti Hakala, Helsinki, FI;
Assignee:
Instrumentarium Corp., Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
12820423 ; 12820422 ; 600529 ;
Abstract
A method of preventing the formation of dangerous underpressure in a respiratory system,, which comprises a respirator (1) connected to the patient, and a sampling device (11) and a gas analyzer (3) connected thereto, in which method inspired and expired air is aspirated at a predetermined pressure for sampling through the sampling line (7). When an excess underpressure is formed in the gas analyzing unit, the aspiration of the pump (2) is prevented in the respiratory tube (15).