US 2007/0179428 A1Published application

Implantable micro-system for treatment of hydrocephalus

OwnerFrancis A. Kralick, D.O., Hongseok Nohinventors

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Abstract

An implantable system for the treatment of hydrocephalus includes a plurality of microneedles in a fixed array relative to each other adapted to extend from the subarachnoid space containing CSF surrounding the brain, through dura mater forming the wall of the superior sagital sinus. A microvalve is associated with a proximal end of each of the microneedles and is adapted to permit the flow of cerebrospinal fluid (CSF) from the subarachnoid space through the wall of the superior sagital sinus and deposited in the venous return of the brain. The method of treating hydrocephalus with the system of this invention also constitutes a part of the invention.

Claims16

Dependent claims

An implantable system for the treatment of hydrocephalus, said system including:

(a) a plurality of hollow microneedles in a fixed array relative to each other, said microneedles being adapted to extend through dura mater and having a proximal end adapted to communicate with the interior of the brain on one side of the dura mater and a distal end adapted to communicate with the venous system in an area on a second side of the dura mater opposed to said one side;
and
(b) an array of microvalves associated with a proximal end of said microneedles, said microvalves being adapted permit the flow of cerebrospinal fluid (CSF) through the dura mater from the proximal end to the distal end of each microneedle to prevent an excessive pressure build up of CSF within the brain.

Dependencies are inferred from the claim text.

Facts

Application: 11/669,665Filed 31 Jan 2007
Priority: 31 Jan 2006
Published: 2 Aug 2007
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F16K 99/0001
Subject matter not provided for in other groups of this subclass: microvalves
A61M 27/006
Implant devices for drainage of body fluids from one part of the body to another: cerebrospinal drainage; Accessories therefor, e.g. valves
A61M 37/0015
Other apparatus for introducing media into the body ; Percutany, i.e. introducing medicines into the body by diffusion through the skin: by using…
F16K 99/0028
Constructional types of microvalves; Details of the cutting-off member: valves having multiple inlets or outlets

Family

Application60/763,746Us provisional application · filed 31 Jan 2006
US 7,691,077 B2Related patent
US 2007/0179428 A1This patent

From the US filing history. Foreign family members aren’t listed.

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