Method of treating a patient with hydrocephalus and...

Surgery – Devices transferring fluids from within one area of body to... – With flow control means

Reexamination Certificate

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C604S264000, C604S008000

Reexamination Certificate

active

07422566

ABSTRACT:
An adjustable hydrocephalus valve comprising a mechanical brake. The brake can be decoupled by pressing the valve housing percutaneously and allows in this state to adjust the opening characteristics of the valve by rotating externally disposed magnets. In order to detect the adjusted pressure or in order to adjust the pressure, specific adjustment or measuring pin principles are presented which simplify and at the same time improve the respective functions of measuring and adjusting.

REFERENCES:
patent: 3985140 (1976-10-01), Harris
patent: 4540400 (1985-09-01), Hooven
patent: 4676772 (1987-06-01), Hooven
patent: 4772257 (1988-09-01), Hakim et al.
patent: 4781673 (1988-11-01), Watanabe
patent: 4867740 (1989-09-01), East
patent: 5637083 (1997-06-01), Bertrand et al.
patent: 5643194 (1997-07-01), Negre
patent: 5928182 (1999-07-01), Kraus et al.
patent: 6840917 (2005-01-01), Marion
patent: 2004/0010219 (2004-01-01), McCusker et al.
patent: 0 421 557 (1991-04-01), None

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