USP Medical Carbon Dioxide
Source

The CO2 Regulator System provides fast, safe delivery of medical carbon dioxide for a variety of purposes, primarily in Interventional Radiology, Cardiology, and Vascular Surgery.

The device is intended for general use by physicians and is not intended to be marketed for any specific treatment or medical purpose. Specific uses of this device for particular indication are ultimately the responsibility of the physician, but note that the sale and use of this product is limited to, and on the order of, a physician.

The CO2 Regulator system consists of:

1. A new aluminum Type E cylinder filled with USP Medical Carbon Dioxide.
2.  A research grade CO2 regulator with a stainless steel diaphragm, preset at 25 psi.
3. A push-button operated safety fill valve.
4. A male luer lock fitting.
5. 0.25 submicron sterile hydrophobic filter (box of 25).
6. A cylinder cart.

System purity begins with the new aluminum CO2 cylinder. Aluminum is non-corrosive and not subject to interior rust, a condition common to steel cylinders. Since CMD supplies a new cylinder, there is no danger of the cylinder having previously been contaminated by other industrial gases, moisture, etc. 

The regulator is a high purity research grade gas regulator intended for primary pressure control of high purity, non corrosive, research gases. Each regulator has been set at 25 psi, to ensure a proper gas flow rate through the submicron filter.

We offer the regulators with either a CGA320 nut cylinder connection or a medical CGA940 yoke cylinder connection. The preset regulator has one gauge, that shows the pressure of the cylinder and is preset to 25 psi.

The adjustable regulator has two gauges, one which indicates pressure in the cylinder and the second is set pressure. The regulator pressure is adjustable 0 to 40 psi.

All cylinders purchased from CMD, Inc. are new aluminum type E cylinders. Cylinders come with a CGA320 diaphragm valve for use of medical CO2. A full cylinder of carbon dioxide will read about 840 psi. Full cylinders contain approximately 1.3 million cc of CO2. A refill should generally be ordered when the cylinder reaches approximately 600 psi.

To order a CO2 tank refill, you will need to email an order request, along with a shipping address. We will ship you an empty exchange cylinder box and return shipping labels. When you receive the exchange box, simply put your empty exchange cylinder in the shipping box, and place the return UPS shipping labels on the outside of the box and take the box to your shipping/receiving department. Once we receive your returned empty cylinder and PO, we will ship you the refilled cylinder of USP medical CO2.

Used cylinders are supplied only when a customer requests a refill rather than purchasing a new cylinder, and have only been filled with USP medical CO2. Many facilities purchase an additional cylinder initially to ensure always having a gas supply.

On the low pressure end of the system is a push-button fill valve. This push-button must be manually depressed to release the gas flow. This is a safety feature designed to prevent the user from opening the cylinder valve to release gas flow, and then neglecting to turn it off quickly enough to prevent waste, or even overflowing or bursting whatever device is being filled with the CO2. Additionally, the use of this valve allows the user to more precisely deliver the amount of CO2 desired.

The final components of the system are the luer lock fitting and sterile submicron filters. The luer lock fittings are standard catheter/syringe type components, and are available in either male or female connections, with male being standard on the system. Screwing onto the luer fitting is a 0.25-micron filter, which also has a dual luer connection. Although purity of gas flow is assured throughout the system, the filter provides a sterile barrier. Twenty-Five individually blister packed, sterile filters are included with the system. The filters and the CO2 itself are the only disposable components of the system.

The CO2 Regulator, has been carefully put together, to provide the user with maximum assurances of safety, as well as ease of operation. The user can rest assured that the CO2 flow from the low-pressure end of the regulator passing through the filter is of the same purity as the gas in the cylinder. Any operator will be able to set up this system and have it operational in minutes.