Title:
経腸/非経口供給チューブ内の障害物検出および該チューブからの詰まりの除去
Document Type and Number:
Japanese Patent JP3549487
Kind Code:
B2
Abstract:
A tube in a pumped fluid system can become obstructed by a clog. The clog is automatically cleared in response to an obstruction signal by modifying the pumping cycle which is normally used to pump the fluid. In particular, the pumping cycle is stopped after a compression stroke to apply sustained high pressure in the clogged tube, using the same fluid and the same pump, to expel the clog from the tube. The obstruction signal is derived by measuring pressure during a portion of the pumping cycle when elevated pressure due to viscosity effects have subsided. Therefore, if the pressure remains elevated, a determination of an obstructed state can reliably be made which may be caused by a clog.
Inventors:
Franz Mark G
Honored Mark Earl
Manji Patrick
Pavsec Thomas Jay
Nemar Richard E
Chessness charlie pee
Honored Mark Earl
Manji Patrick
Pavsec Thomas Jay
Nemar Richard E
Chessness charlie pee
Application Number:
JP2000579892A
Publication Date:
August 04, 2004
Filing Date:
November 04, 1999
Export Citation:
Assignee:
FRANTZ MEDICAL DEVELOPMENT,LTD.
International Classes:
F04B49/10; A61M5/00; A61M5/142; A61M5/168; F04B43/00; F04B43/08; F04B51/00; (IPC1-7): A61M5/00; A61M5/142; A61M5/168; F04B43/08; F04B49/10
Domestic Patent References:
| JP11505449A | ||||
| JP1145072A | ||||
| JP63186661A | ||||
| JP59057135A | ||||
| JP7024065A | ||||
| JP5042210A | ||||
| JP471782U |
Foreign References:
| US4977517 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda