Patent · US Expired

Lavage valve

US5439022A · kind A · utility

56Cited by

21References

13Claims

0Family size

Inventors

Daniel A. Summers · Alpine, US
Howard Levy · Cedar Park, US

Key dates

Filing date	Feb 14, 1994
Grant date	Aug 8, 1995
Priority date	—
Expiry date	Feb 14, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/2557
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Disclosed is a lavage valve apparatus and a method of using the valve. The valve comprises a valve body having three apertures and a bypass passageway. A movable valve member with truncated end portions moves linearly within the valve body by means of hydraulic pressure or mechanical (or magnetic) bias. Application of hydraulic pressure via a syringe pumps irrigation fluid through the valve into the patient. Termination of hydraulic pressure allows mechanical re-seating of the movable valve member and vacuum withdrawal of the fluid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.