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ROHO cushion air/pressure retention

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  • ROHO cushion air/pressure retention

    How long can a non-defective ROHO cushion be reasonably expected to hold its original inflation setting?

    When I refurbish a chair w/ a ROHO, I include an inflation pump and instructions on how to set (and REset) the proper inflation level for the rider.

    But, I don't have any more inflators for the next three chairs that I'm releasing. So, instead, I'll amend my instructions to clients to include a pointer to the various suppliers of the inflator (they're inexpensive so I figure if you got the chair & ROHO for free, you can afford the inflator!)

    The question, however, is should I suggest they purchase one ASAP (good advice if the cushion tends to need to be tweaked, often) or hold off until they think their cushion may be going a bit "flat" (and hope for "in stock" availability and prompt delivery).

    I've never heard back from previous clients as to how often (or even IF!) they needed to adjust the firmness of their cushions. So, for all I know, it's possible that none of the inflators I've given out have ever been used!

  • #2
    I check mine daily, but add air only every several months or less often.

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    • #3
      I just use my mouth have not used a actual inflator in 4 years. How do you check yours every day without a pressure gauge.

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      • #4
        In my experience a month is probably max. But I ran the slim cushion (so less air loss makes a bigger difference).

        that being said, the first few weeks the user needs to be able to air up and down the cushion to get the best firmness. I always lost my inflators and just used my mouth, but that probably contributed to the short lifespan of all my cushions...

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        • #5
          Originally posted by Lavender lady View Post
          I just use my mouth have not used a actual inflator in 4 years. How do you check yours every day without a pressure gauge.
          The hand check method is recommended, but it isn't as easy as they make it look in the video.

          https://www.youtube.com/watch?v=6TxGKyEzUao

          Also, if you have one of the Roho cushions with Isoflo Memory Control, remember to unlock it before you use the inflator, and lock it after inflation and before sitting on the cushion.
          Attached Files

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          • #6
            I check my immersion a couple times a day. Haven't added air for well over a year. Mid-profile Quattro Select. I run mine nearly flat as it is, for my perfect immersion, so maybe that's why I never need to add air; there just isn't hardly much in it above atmospheric pressure to begin with, if any. (Sitting on it raises the pressure obv.) I never turn the valve on and off either. Properly functioning shouldn't lose air; a leaking valve is defective IMO, even if only leaking a bit. I wouldn't keep a cushion that lost air regularly. When I do add air, I open the Quattro valve, blow it up until it's mounding, then let it drain until it stops/equalizes with atmospheric pressure, then lock all the valves down. Stays fine forever that way for me. Temperature fluctuations are the only reason I ever have had to make any adjustments (e.g. Being outside in the heat or cold for a long time, which is super rare for me. I'm a house cat.)
            "I have great faith in fools; self-confidence my friends call it." - Edgar Allen Poe

            "If you only know your side of an issue, you know nothing." -John Stuart Mill, On Liberty

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            • #7
              I run my hand over cushion about every day, especially if using my backup chair. If don't feel 'right' I'll add a bit air with pump and let bit out after running my hand around some to feel if feels 'right'.
              My wife checks with me sitting in chair every once in awhile to kinda keep a check.
              Usually if there's a leak so fair we notice change fairly quickly.
              I try keep track of pumps and so far can locate at least one cause keep it in bedside chest.

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              • #8
                I use a Quattro High Profile.
                It rarely needs air.

                When sitting stably upright, I open the 4 way valve, wait for the pressures to equalize, then close it. Isn't that how it's supposed to be done?
                IMO it's better; certainly less butt pressure as it raises the front chambers under my thighs.
                69yo male T12 complete since 1995
                NW NJ

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                • #9
                  Originally posted by Lavender lady View Post
                  ….How do you check yours every day without a pressure gauge.
                  I overfill the cushion (single chamber Roho Hybrid Elite) and then leave the valve open until flow stops--so it's full but without pressure. To check, I just feel it each morning to confirm that it's full or nearly so.
                  Last edited by endo_aftermath; 01-11-2019, 06:51 PM.

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                  • #10
                    I've got a gauge for mine, did a pressure map, got it set nicely then attached gauge to see what pressure was in the cushion. Once inflated to that pressure we check once a week and there isn't a lot of change, top it up about once every 3 or 4 weeks but not a lot of air is needed. Temperature does have an impact so we always check as soon as I am in chair, never after I have been up for a long time. Roho pumps lose air so don't leave attached with valve open.

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                    • #11
                      Originally posted by Oddity View Post
                      I check my immersion a couple times a day. Haven't added air for well over a year. Mid-profile Quattro Select.
                      Originally posted by pfcs49 View Post
                      I use a Quattro High Profile.
                      Just a minor correction for clarity these are Roho Quadtro, not Quattro cushions.
                      Attached Files

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                      • #12
                        It's partially a function of the age of the cushion. A Roho shouldn't lose air unless there is a leak, but the probability that a leak will develop increases with the age of the cushion.

                        I have to admit, I don't use the inflator. On the other hand, I'm not using a previously owned cushion.

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                        • #13
                          automation, contact me with your name / address and I'll get some ROHO inflation pumps sent out to you on Monday so your clients can have what they need with the cushions you deliver.

                          tom.borcherding@permobil.com

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                          • #14
                            Our son got a ROHO Hybrid Elite Dual Compartment cushion about 3 months ago. We check it (by hand) very regularly as he is recovering from a pressure sore so we are very diligent now! Due to his hip obliquity, one side is deliberately higher pressure than the other. Every time we check, the pressure variation between the two chambers is still evident, and the cushion hasn?t needed to be inflated at all since he got it. However, we did need to adjust the chambers to set it up initially, so the pump was definitely needed then.

                            7 months ago, just after his sore appeared, we were loaned another type of ROHO cushion (probably a standard series option, I can?t recall the exact type). It lost a bit of air over short periods, so I had a close look at it and a few of the ?nodules? were stuck together. I pulled one apart and a hole appeared! Luckily the repair kit was also supplied, so I repaired it and it was far better afterwards. Obviously we don?t know the previous history of the cushion, so the reasons for the nodules being stuck together isn?t clear.

                            Some years ago he had a different air-filled cushion which deflated completely at one stage (I don?t believe that it was a ROHO), so we avoided air filled cushions for several years. But the current ROHO one appears to be good, and has the fallback of foam under the air should anything catastrophic happen.

                            But I wouldn?t have been happy if the new cushion didn?t come with a pump....
                            Gordon, father of son who became t6 paraplegic at the age of 4 in 2007 as a result of surgery to remove a spinal tumour.

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                            • #15
                              Hey Gordy1- We get cells stuck together all the time on my daughter's ROHO. This happens right between her thighs on the front of the seat and is due to the lube from her closed system cath set dripping on the seat over time. (She has a mitrofanoff.) Sometimes she will put a towel or something down to catch any lube spill. I very gently clean between those front cells with warm water and a cloth. I suppose a person could spill a few drops overtime of about anything and eventually those cells will stick together.

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