SpiraLith

FAQs

Where can I buy SpiraLith?
SpiraLith is available directly from Micropore and from most medical supply distributors. If you would like to place an order, or if your distributor does not carry SpiraLith, please contact Micropore at 302-731-4100 or info@spiralith.com.
What are the advantages of using SpiraLith over other absorbents?
SpiraLith eliminates all the issues of soda lime, offering significant benefits for clinicians, technicians and hospitals. Because of its lithium chemistry and solid construction, it performs more predictably, lasts longer, provides increased safety for patients, staff and equipment, protects the environment and saves significantly on anesthetic agent costs.
Why is a solid construction better than granules?
Granular CO2 absorbents are comprised of dusty, loose pellets that shift and settle, thereby creating the issue of “channeling.” This is where expired air takes the path of least resistance, creating random channels that become exhausted long before the rest of the cartridge is consumed. SpiraLith is a solid absorbent sheet with pre-formed air passages that ensure uniform cartridge usage. So it lasts longer, does not channel and does not dust.
What are the benefits of an absorbent that does not desiccate?
Calcium-based absorbents are like sponges that absorb water. Once they desiccate, or dry out, they can no longer absorb CO2and begin reacting with the anesthetic agent, generating toxic byproducts. SpiraLith, on the other hand, does not desiccate because the water content in lithium is not absorbed, but chemically bound. SpiraLith will not dry out, providing greater absorption capacity, and will not react with the anesthetic agent.
How does SpiraLith save hospitals money?
Using SpiraLith, hospitals save on both absorbent costs and anesthetic agent costs. Because of its solid construction, lithium formulation and lack of desiccation, SpiraLith cartridges last much longer than calcium-based absorbents. SpiraLith also ensures significant savings on anesthetic agent costs because it does not absorb anesthetic like other CO2 absorbents, which can absorb from 5% to 29% of the costly agent.
Does SpiraLith contain a color indicator?
No, SpiraLith does not use a color indicator for two reasons: 1) indicator dye is a contaminant and 2) color indicators do not offer a reliable way to assess the exhaustion of the absorbent material. They merely indicate a change in PH, such as when moisture is lost in a calcium-based CO2 absorbent. Instead, per machine manufacturers’ instructions, we recommend the use of FiCO2 (fraction of inspired CO2) monitored via capnography as the means to correctly assess exhaustion of our product.
Can I save money using FiCO2 with traditional granular products?
Probably not. Many hospitals have tried this, and while they may continue to use FiCO2, they use color change indication as well. This is because color change is an indicator of desiccation which can occur after the last procedure, and the cartridge must be changed out prior to the next procedure. SpiraLith does not have this failure mode, and FiCO2 can be used directly. Granular absorbents are also much more variable in CO2 duration, and this makes it harder to predict when they will fail—possibly during procedures—making it more difficult to use FiCO2. Many hospitals, therefore, change out granular systems on a regular schedule to make sure the absorbent does not need replacing during a procedure. This results in replacing cartridges before they are consumed and wasting absorbent. Because SpiraLith absorbent is so predictable, FiCO2 change-outs are now practical.
How is SpiraLith disposed of? Can it go in the landfill?
SpiraLith is the only CO2 absorbent that is recycled by the manufacturer, so it should not be placed in waste bags. Once exposed to CO2, Lithium Hydroxide becomes Lithium Carbonate which can be safely recycled.
Is SpiraLith approved by the FDA?
While Micropore is registered with the FDA as the manufacturer of SpiraLith, Class 1 Devices such as CO2 absorbents do not require 510(k) approval.
Can I flow below the FDA recommendations?
SpiraLith allows the safe adoption of low flow anesthesia and will support each hospital’s policy related to flow rates.
Is SpiraLith safe to handle?
Under DOT recommendation, Lithium Hydroxide is classified and labeled as corrosive. All absorbents are corrosive and should be handled accordingly (using rubber gloves) but SpiraLith does not dust, eliminating the need for a mask.
Is SpiraLith available for use outside of the U.S.?
While not currently available, our plans are to eventually offer SpiraLith worldwide.
Who owns Micropore?
Micropore is a privately held Delaware corporation.