Infusor having a distal flow regulator

Details Infusor having a distal flow regulator Infusor having a distal flow regulator

1988-05-02

1990-02-27

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604132, 128DIG12, A61M 500

Patent

active

049042394

ABSTRACT:
An infusor (10) is disclosed for dispensing a liquid under pressure at a predetermined flow rate. The infusor (10) includes a housing (12) containing an elastomeric bladder (16) for receiving the liquid under pressure. The liquid is delivered from the bladder to a patient through tubing (36). A non-adjustable, preselected flow regulator (38) includes a capillary bore (48). The flow regulator (38) is disposed at the distal end of the tubing (36), such that the tubing may be primed quickly, in a time period virtually unaffected by the flow regulator (38). Distal placement of the flow regulator (38) results in a more constant temperature, and thus a more constant flow rate, of fluid flowing through the flow regulator.

REFERENCES:
patent: 3675891 (1972-07-01), Reynolds et al.
patent: 3895631 (1975-07-01), Buckles et al.
patent: 3985336 (1976-10-01), Bentley
patent: 4201207 (1980-05-01), Buckles et al.
patent: 4202333 (1980-05-01), Thill et al.
patent: 4337769 (1982-07-01), Olson
patent: 4381006 (1983-04-01), Genese
patent: 4414999 (1983-11-01), Basta
patent: 4419096 (1983-12-01), Leeper et al.
patent: 4497468 (1985-02-01), Hubbard et al.
Introduction to Fluid Mechanics, Fox and McDonald, 2nd Ed., John Wiley & Sons .COPYRGT.1973, 1978.

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