Valve system and method with multi-directional pumping

Patent metadata

Field	Value
Publication number	US-9114230-B2
Application number	US-201213629661-A
Country	US
Kind code	B2
Filing date	Sep 28, 2012
Priority date	Sep 28, 2012
Publication date	Aug 25, 2015
Grant date	Aug 25, 2015

Abstract

An implantable valve system and method of using same, including a housing with a resilient membrane defining a reservoir in fluid communication with at least two ports, and at least a first set of opposing sealing features disposed on upper and lower surfaces within the housing. The membrane is capable of being depressed by a human finger to bring the sealing features together to substantially restrict fluid from passing through at least one of one of the ports, and is capable of being depressed additionally by a rolling motion of the finger to drive fluid through the other of the ports.

First claim

What is claimed is:

1. An implantable valve system comprising:
a housing with a single dome-shaped resilient membrane defining a reservoir in fluid communication with at least two ports and having a longitudinal axis;
at least a first set of opposing sealing features disposed on upper and lower surfaces within the housing, the opposing sealing features being disposed in the center region of the reservoir;
the single dome-shaped membrane capable of being depressed by a human finger to bring the sealing features together to substantially restrict fluid from passing through at least one of one of the ports and to divide the reservoir into a first pumping chamber and a second pumping chamber;
the single dome-shaped membrane further capable of being depressed additionally by a rolling motion of the finger to drive fluid through the other of the ports; and
wherein one of the sealing features includes a detent and the other of the sealing features includes a recess to matingly receive the detent.

2. The system of claim 1 wherein the first set of opposing sealing features is disposed transverse to the longitudinal axis of the housing.

3. The system of claim 1 wherein the first set of opposing sealing features extends substantially perpendicularly across the reservoir to establish first and second pumping chambers when the sealing features are brought together.

4. The system of claim 1 in which the housing further includes a floor portion which defines one of the sealing features.

5. A method for clearing an obstruction in a catheter implanted in a patient, comprising:
locating a valve system implanted sub-dermally in the patient, the valve system having a housing with a single dome-shaped resilient membrane defining a reservoir in fluid communication with at least two ports and having at least a first set of opposing sealing features disposed on upper and lower surfaces within the housing, the opposing sealing features being disposed in the center region of the reservoir;
depressing the single dome-shaped membrane with one finger to bring the sealing features together to substantially restrict fluid from passing through at least one of one of the ports and to divide the reservoir into a first pumping chamber and a second pumping chamber; and
moving the finger in a rolling motion to additionally depress the single dome-shaped membrane to drive fluid through the other of the ports to clear the obstruction.

6. A method for clearing obstructions in at least two implanted catheters, comprising:
locating a valve system implanted sub-dermally in the patient, the valve system having a housing with a single dome-shaped resilient membrane defining a reservoir in fluid communication with at least two ports and having at least a first set of opposing sealing features disposed on upper and lower surfaces within the housing, the opposing sealing features being disposed in the center region of the reservoir;
depressing the single dome-shaped membrane with one finger to bring the first set of sealing features together to substantially restrict fluid from passing through at least one of one of the ports and to divide the reservoir into a first pumping chamber and a second pumping chamber;
moving the finger in a first rolling motion in a first direction to additionally depress the single dome-shaped membrane to drive fluid in the first direction through the other of the ports to clear a first obstruction; and
moving the finger in a second rolling motion in a second direction to additionally depress the single dome-shaped membrane to drive fluid in the second direction through the one of the ports to clear a second obstruction.

Assignees

• Depuy Synthes Products Llc
• Depuy Synthes Products Inc

Inventors

• Wilson Stephen
• Soares Brian

Classifications

• A61M27/006 Primary

  Cerebrospinal drainage; Accessories therefor, e.g. valves · CPC title

• A61M5/1428

  with manual pumping action · CPC title