Patent Yard Sign in
Expired Canadian patentCanada

Adaptor to endotracheal tube

CA 1283032 C · Owner: Katz, Yeshayahu · Inventors: Katz, Yeshayahu; Greunwald, Theodor

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The present invention relates to a simple device for ensuring the correct placement of endotracheal intubation. According to the invention there is a transparent adaptor, suitable to be attached at one end to an endotracheal tube and at the other end to a mechanical respirator. Into the adaptor there is a solid support impregnated with a solution of at least two chemical compounds: organic amine and an indicator with a pK in the range of 2.0 to 10.5 of a concentration of at least: 0.05% (wt. by volume) of the impregnation solution. The simplest form of solid support is a porous paper such c-s filter paper, fiber or fabric. The correct insertion of the endotracheal intubation. is noticed by …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 27, 1987
GrantedApril 16, 1991
Term endedApril 16, 2008
Patent numberCA 1283032 C
Classification (IPC)A61M16/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJuly 27, 1987Patent grantedApril 16, 1991Term endedApril 16, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.