Self-contained fluid management pump system for surgical procedu

Details Self-contained fluid management pump system for surgical procedu Self-contained fluid management pump system for surgical procedu

1999-03-19

2000-08-22

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604151, A61M 100

Patent

active

061064947

ABSTRACT:
A fluid management pump system (20) for applying an irrigation/distention solution to a surgical site. The system includes a pump (22) for forcing the solution through an inflow tube (28). A portable power pack (26) attached to the pup provides the energization current for actuating the pump. The solution is introduced into the surgical site from the inflow tube through a first cannula (30) across which there is a relatively small pressure drop. Fluid discharged from the surgical site is drained from the site through a second cannula (32) across which there is a low pressure drop. A hand controller (38) is attached to the inflow and outflow tubes. The hand controller contains a valve (46) for regulating fluid flow through the outflow tube. A pump control circuit (232) is also disposed in the hand controller. Based on the actuation of buttons (42, 44) mounted to the hand controller, the pump control circuit regulates the energization signal applied to the pump so as to regulate the rate at which solution is discharged from the pump.

REFERENCES:
patent: 5433588 (1995-07-01), Monk et al.
patent: 5613954 (1997-03-01), Nelson et al.
patent: 5810770 (1998-09-01), Chin et al.
patent: 5827218 (1998-10-01), Nguyen et al.
patent: 5899884 (1999-05-01), Cover et al.

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