# US 2019/0167924 A1 · Portable medical gas delivery system

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- Number: US 2019/0167924 A1
- Document ID: US20190167924A1
- Status: Published application
- Kind: A1
- Application number: 16/270,900
- Filed: 2019-02-08
- Published: 2019-06-06
- Earliest claimed: 2006-11-27
- Inventors: Frank Levy
- Web page: https://patentgrep.com/patent/US20190167924A1

## CPC

- A61M 13/003: {Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing}
- A61M 16/0057: {Pumps therefor}
- A61M 16/12: by mixing different gases
- A61M 25/00: Catheters; Hollow probes (dilators A61M29/00; {peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00} ; for measuring or testing A61B; {materials for catheters A61L29/00})
- A61M 25/1018: {Balloon inflating or inflation-control devices}
- A61M 25/10183: {Compressible bulbs}
- A61M 25/10185: {Valves}
- A61M 39/221: {Frangible or pierceable closures within tubing (A61M39/14 takes precedence; frangible closures for containers A61J1/14)}
- A61M 2025/102: {driven by a solenoid-activated pump}
- A61M 2202/0225: Carbon oxides, e.g. Carbon dioxide
- A61M 2205/3331: Pressure; Flow
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

An apparatus for producing gas for use in medical applications. The apparatus includes a compressed gas unit having at least one container of compressed gas and a solenoid valve. An adjustable pressure regulator communicably connected to the gas container, separate and distinct from the solenoid valve, is adjusted to control the pressure of the gas provided from the container to tire solenoid valve An electrical power source Is connected to the solenoid valve. A pressure activated electronic switch connected to the power source is responsive to a selected amount of voluntary fingertip, pressure for opening the solenoid valve to transmit the gas therethrough to a conduit, which further transmits the gas to a destination for use or storage.

## Claims

### Claim at position 1

1-16. (canceled)

### Claim 17

An apparatus for dispensing medical grade gas, said apparatus comprising:
a portable compressed gas unit including:
a housing including a cylinder cartridge puncture valve adapted for attachment to a source of compressed gas,
a solenoid communicably connected to the source of compressed gas, the solenoid including an inlet and an outlet,
a pressure adjustable gas regulator separate and distinct from the solenoid and communicably interconnected between the source of compressed gas and the inlet of the solenoid for selectively adjusting the pressure of the gas provided from the source of compressed gas to the solenoid, the gas regulator including a regulator adjustment knob to provide a selected level of pressure,
a pressure gauge connected between the gas regulator and the solenoid, and
a pressure activated electric switch engaged to selectively open the solenoid; and
a conduit communicably attached to the outlet of the solenoid for transmitting gas to a destination for storage or use in a medical application when the solenoid is opened by operation of the pressure activated electric switch.

### Claim 18 (depends on 17)

The apparatus of claim 17 wherein the compressed gas includes at least one of carbon dioxide, atmospheric air, helium and oxygen.

### Claim 19 (depends on 17)

The apparatus of claim 17 wherein the compressed gas is contained within a replaceable compressed gas cartridge.

### Claim 20 (depends on 17)

The apparatus of claim 17 in which the pressure activated electric switch includes an electronic push button device.