Title:
上流側の閉塞検出システム
Document Type and Number:
Japanese Patent JP3670293
Kind Code:
B2
Abstract:
A pumping segment of a fluid line alternately in fluid communication with the upstream and downstream portions of the fluid line connects a fluid supply to a fluid receiver. A pressure sensor located downstream of the segment monitors the pressure during the segment's communication with the upstream and downstream ends. The pressure difference is used to establish a pressure threshold against which the average pressure is compared to determine if an upstream occlusion exists. Should the average pressure fall within a cautionary zone, the pump is reversed to examine the pressure difference once again. Based on the pressure difference during the reversal, a pressure threshold line may be adjusted thereby adapting to fluid administration conditions.
Inventors:
Butterfield robert dee
Application Number:
JP51056197A
Publication Date:
July 13, 2005
Filing Date:
August 29, 1996
Export Citation:
Assignee:
ALARIS Medical Systems, Inc.
International Classes:
A61M5/168; A61M5/00; (IPC1-7): A61M5/00
Domestic Patent References:
| JP6233818A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo