Patent Yard Sign in
Expired Canadian patentCanada

Blood reservoir

CA 1250793 A · Owner: Terumo Kabushiki Kaisha Trading As Terumo Corporation · Inventors: Sekiguchi, Mamoru; Mori, Toshimichi; Shitaokoshi, Sachiro

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

A blood reservoir commonly used in a blood circuit, with an artificial lung includes a blood extraction line, chamber provided inside a housing and having a blood extraction line connection port, the chamber temporarily accommodating blood from a vena cava received via the connection port, a suction line chamber provided inside the housing and having a suction line connection port the, chamber temporarily accommodating blood drawn in during, open-heart surgery, received via the connection port a, blood pooling chamber provided inside the housing and communicating with the blood extraction line chamber and the suction line chamber for pooling blood accommodated by the two chambers, …

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 March 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 7, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 30, 1986
GrantedMarch 7, 1989
Term endedMarch 7, 2006
Patent numberCA 1250793 A
Classification (IPC)A61M1/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedMay 30, 1986Patent grantedMarch 7, 1989Term endedMarch 7, 2006

Sources & verification

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