Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1987-08-26
1990-02-20
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604118, 604154, A61M 103
Patent
active
049022776
ABSTRACT:
For an endoscopic resection or examination of a body cavity or joint where a physiological liquid is pumped at one location to a joint from a feed conduit connected to a feed pump and withdrawn at another location from the joint through a suction conduit connected to a suction pump, this suction pump is operated at a rate corresponding to a generally constant low rate of flow in the suction conduit and the feed pump is operated in accordance with the pressure detected in the joint to maintain the pressure above a predetermined desired level. Furthermore when a tool carrying one end of an auxiliary suction conduit is inserted into the joint so that periodically this conduit can be connected to the pump so that liquid can be withdrawn from the joint through this auxiliary conduit, the method comprises the step of automatically increasing the suction-pump rate when the auxiliary conduit is connected to the suction pump to a predetermined relatively high rate. When the tool includes a blade and a motor operable to move the blade, the method further comprises the step of automatically disconnecting the suction pump from the main suction conduit and to the auxiliary suction conduit and simultaneously increasing the suction-pump rate from the low rate to the high rate when the motor is operated to move the blade.
REFERENCES:
patent: 3900022 (1975-08-01), Widran
patent: 4007742 (1977-02-01), Banko
patent: 4203444 (1980-05-01), Bonnell et al.
patent: 4261360 (1981-04-01), Perez
patent: 4423727 (1984-01-01), Widran et al.
patent: 4493694 (1985-01-01), Wuchinich
patent: 4604089 (1986-08-01), Santangelo et al.
patent: 4650462 (1987-03-01), DeSatnick et al.
patent: 4662871 (1987-05-01), Rufelson
patent: 4671792 (1987-06-01), Borsanyi
patent: 4750902 (1988-06-01), Wuchinich et al.
patent: 4795424 (1989-01-01), Burner
Morgan; "Fluid Delivery Systems for Arthroscopy", Arthroscopy, 1987, 3(4) pp. 288-291.
Bergstrom et al.; "The Use of an Infusion Pump in Arthroscopy", Arthroscopy, 1986, 2(1) pp. 41-45.
Guignard Claude
Mathies Burkhard
Misse Didier
Pidoux Paul
Dubno Herbert
Orthoconcept
Rosenbaum C. Fred
Wilford Andrew
LandOfFree
Circulating a liquid through a joint does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circulating a liquid through a joint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circulating a liquid through a joint will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1613631