The vacuum sealed cervix

A multiplace hyperbaric chamber


Flight attendants and vacuum sealed diaphragms: I first noticed the dome of my diaphragm under significant vacuum when I inserted my Reflexions in Tahoe (at an elevation of more than 6,200 feet) for dive-sex last summer. It was such an amazing feeling that developed as the dome suctioned tighter against my cervix and anterior wall as Limnaea, my G550, was descending to land at McCarran at an elevation of about 2,200 feet! I love the feeling of pressure as the latex membrane stretches over the tip of my cervix. It’s rather like the pressure on my toes in my toe pads when I walk or stand en pointe.

Now, we are beginning to see a few flight attendants’ coming in to be fitted for latex diaphragms as the word spreads about the eroticism of wearing one with a pressurized dome. Most admit wanting latex because of the experiences of friends, but a second reason is that a Latex flat spring diaphragm is the safest for use as ‘flood insurance’ during dive-sex which flight attendants have discovered and are scheduling private classes during layovers. The flight attendants reasons are reversed from the escorts for whom a latex FS is a standard part of their equipment when with a dive-sex client. But then most escorts haven’t had experience vacuum sealing the dome of a diaphragm during a flight. Unfortunately only about 40% of the women who have come to us wanting to learn how to vacuum seal the dome of their diaphragms have the proper pelvic anatomy to do so.

There are several caveats for women wanting a high vacuum in the dome of a latex FS diaphragm. First she mustn’t be allergic to latex. While that seems obvious some women want to try anyway which is not a good idea! Second as mentioned above she must have the proper pelvic anatomy. Some women, because of their vaginal rugae (the folds in the walls that allow the vagina to expand when aroused and during childbirth) are unable to develop a strong vacuum in the dome. The dome will seal effectively enough for contraception when used with spermicide, but won’t develop a significant vacuum in the dome which allows it to adhere to the cervix and anterior wall as tightly as a coat of paint. For the lucky women the thin latex dome will stretch under pressure to develop a high vacuum and a nearly perfect fit. However, a few of them find they can’t stand the pressure on the cervix and don’t pressurize. Because the domes of silicone diaphragms are stiffer and less stretchy under vacuum even I find a silicone dome under strong vacuum puts too much pressure on the tip of my cervix for me to stand it for more than a few minutes and that much pressure can also cause the cervix to bleed.

Returning readers will remember there are some other disadvantages of latex diaphragms: they don’t last nearly as long, discolor quicker, tend to develop an odor sooner and may contribute to infections more than silicone ones. Still, for those of us into dive-sex or wanting a vacuum in the dome the latex Reflexions is a must.

The dome vacuum: For a woman whose anatomy allows developing a high dome vacuum, inserting a tight sealing cervical barrier while in an aircraft at altitude with a typical cabin pressure of 8,000 feet, allows the dome to be under a vacuum of several pounds per square inch at ground level. I can get somewhat the same result by ‘pumping down’ as I described in my March 31, 2012 post, ‘Ballet-sex exams, dome suction’, but it doesn’t approach the seal developed with a 2 to 3 psi dome vacuum. Some examples of the strong dome vacuums that can theoretically be obtained locally are:

Las Vegas atmospheric pressure at 2028 feet above sea level say 13.7 psi (2,000 ft)..

Lake Tahoe atmospheric pressure at average surface elevation 6225 feet above sea level, say 11.8 psi (6,000 ft).

Typical passenger plane cabin pressure kept at the equivalent of 8,000 ft, 10.9 psi.

Differences in air pressure Vegas from Tahoe = 13.7 psi minus 11.8 psi = +1.9 psi.

Differences in air pressure Vegas from typical pressurized passenger plane = 13.7 psi minus 10.9 psi = 2.8 psi.

Adolph’s Multiplace Hyperbaric Chamber: There are several local multiplace hyperbaric chambers, but they are all associated with medical facilities open to the public. Given the size of his fetish-diver training facility and the pressure related problems he has encountered with students, primarily women, sent to him for training he has recently had a six bed hyperbaric chamber added to the private hospital he funds for fetish related injuries here in the valley since a lot of the patients are from his training facility. A nice thing is that there is direct access through a tunnel from ‘The Well’, his 216 ft deep underwater training facility, to the admitting area at the hyperbaric chamber.

Until Adolph’s hyperbaric chamber became available there has been no convenient way to tell for sure if a woman being fitted for a latex FS diaphragm could successfully pressurize the dome and if the seal will hold or not, unless she (accompanied by her fitter) was taken up in a small unpressurized plane to 6,000 feet to insert and that was very expensive and could take several hours for the drive to and from the airport and the short flight. Now for groups of as many as six – who have been prescreened for suitability - the dome vacuums can be tested before the woman actually buys the diaphragm. It’s still an expensive test, but it’s worthwhile for a flight attendant desiring to high-vac her dome, a few wealthy women who fly a lot and for medical personnel having access to a multiplace hyperbaric chamber. And of course high-vac diaphragm fittings and tests are now available for guests at The Lorelei, Adolph’s European style spa, yet another profitable revenue stream for an already successful operation.