Implantable hydrocephalus shunt system

摘要

An implantable hydrocephalus shunt system. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

主权项

1. A hydrocephalus shunt drainage valve configured to be installed in a subcutaneously implantable shunt for draining cerebrospinal fluid from the brain of a patient with hydrocephalus, said valve comprising:
a housing being configured to house cerebrospinal fluid; said housing comprising an inlet being configured to be operatively connected to the brain of a patient with hydrocephalus to permit drainage of cerebrospinal fluid from the brain of the patient into said housing; said housing comprising an outlet being configured to permit drainage of cerebrospinal fluid that was drained from the brain of the patient out of said housing; a valve arrangement disposed in said housing and configured to control flow of liquid through in said housing; said valve arrangement comprising a non-return closure and a displaceable element; said non-return closure comprising an inlet side and an outlet side; said non-return closure being configured to open upon liquid pressure on said inlet side being at or above liquid pressure on said outlet side, to thereby permit cerebrospinal fluid being drained from the brain of the patient to flow into said housing via said inlet; said non-return closure being configured to close upon liquid pressure on said inlet side being below liquid pressure on said outlet side, to thereby prevent drained cerebrospinal fluid from flowing back to the brain of the patient via said inlet; and said displaceable element being configured to be displaced upon exertion of a force on said displaceable element during supply of a medicament liquid into said housing, to thereby:
engage and open said non-return closure to permit delivery of the medicament liquid in said housing to the brain of the patient via said inlet against the direction of flow of cerebrospinal fluid, andsubstantially simultaneously close said outlet to block unwanted drainage of the medicament liquid out of said housing via said outlet.