# US 10,869,519 B2 · MEMS valve actuator system and method

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- Number: US 10,869,519 B2
- Document ID: US10869519B2
- Status: Granted
- Kind: B2
- Application number: 15/648,021
- Filed: 2017-07-12
- Published: 2017-11-02
- Granted: 2020-12-22
- Earliest claimed: 2014-08-27
- Applicants: Raymond Louis Barrett, Jr.
- Inventors: Raymond Louis Barrett, Jr.
- Web page: https://patentgrep.com/patent/US10869519B2

## CPC

- A42B 3/122: {inflatable}
- A42B 3/121: {with at least one layer or pad containing a fluid}
- A42B 3/281: {Air ducting systems}
- A61B 5/4064: {Evaluating the brain (for intracranial pressure A61B5/031; for cerebral blood gases A61B5/14553; using EEG A61B5/369)}
- F16K 31/004: {actuated by piezoelectric means}
- F16K 99/0048: {using piezoelectric means}
- A61B 5/002: {Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence)}
- A61B 5/1114: {Tracking parts of the body}
- A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles}
- A61B 2503/10: Athletes
- A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
- A61B 2562/04: Arrangements of multiple sensors of the same type
- F16K 2099/0082: {Microvalves adapted for a particular use}
- A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}

## Abstract

A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.

## Claims

### Claim 1

An electronically actuated Micro-Electro-Mechanical Systems (MEMS) valve assembly for selectively opening or closing, said MEMS valve assembly comprising:
a semiconductor substrate sandwich having a first flat component having two or more openings going through said first component's body and second flat component located below said first component, said second component having two or more openings going through said second component, wherein said second component openings are located so that when said first and second components are placed in contact with each other there is no path through said combined first and second components, with two or more piezo-electric electric voltage actuated actuators located along the lateral edges of said first and second components and capable of moving said first and second components relative to each other so that a planar and non-bowing gap between said first and second components may be opened or closed through the coordinated operation of said piezo-electric actuators through movements of said first and second structural components away or towards each other.