Circulating a liquid through a joint

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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where a physiological liquid is pumped at one location to a joint from a feed conduit connected to a feed pump and withdrawn at another location from the joint through a suction conduit connected to a suction pump, this suction pump is operated at a rate corresponding to a generally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conduit is inserted into the joint so that periodically this conduit can be connected to the pump so that liquid can be withdrawn from the joint through this auxiliary conduit, the method comprises the step of automatically increasing the suction-pump rate when the auxiliary conduit is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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-1613631

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.