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Talk:FemCap

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FemCap often doesn't conform to female anatomy, etc.

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The FemCap attaches itself strongly (with suction) to the cervix but also weakly to the upper vagina, partly or fully within the vaginal fornix. It's design is symmetrical and seems to be for a cervix that is collinear with the upper vagina in the fornix region. Since the vagina is usually not symmetric in this region one can't accurately draw a centered axis for it and compare the angle of this axis to the axis of the cervix. But one may draw a roughly approximate axis for the vagina in this region of the upper vagina. If one looks at female anatomy drawings one notes that the vagina and cervix are typical at say a 45 degree angle [1] to each other (side view - angle varies with individuals). Thus in cases where the angle between the fornix region of the vagina is not close to collinear (0 degree angle) with the cervix, the FemCap will not fit right unless the anatomy bends out of it's normal orientation or the FemCap flexes (or both). This will result in forces on the FemCap tending to dislocate it. For women who have a large angle between their vagina and uterus (one diagram showed almost 90 deg. [1] it might result in misalignment: the Femcap may attach to the cervix but lay transverse to the upper vagina in the fornix region and/or sort of squashed into the fornix . Note that the vagina is somewhat flexible which may help. Has anyone else noted this problem in the design of the FemCap? David S. Lawyer 05:50, 5 May 2018 (UTC)

Note that since the vagina is reported to be curved [2] one can't accurately speak of the angle of the vagina.

The FemCap design violates some of the principle proposed by Stopes in the early 1920's. See Cervical cap. On the I-net there is a picture of the FemCap in place with the uterus and vagina collinear (deceitful unless it's a frontal view). David S. Lawyer 06:19, 18 April 2018 (UTC)

Vandalism 2017

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On 11 Sept. 2017 AllDaeEveryDae changed the pregnancy rate to 100% and prefixed male with fe.

  1. ^ ORIGINAL COMMUNICATION "Value of Vaginal Cervical Position in Estimating Uterine Anatomy" in Clinical Anatomy 30:404–408 (2017). Fig. 2 p.405. by Ulas Fiden, et. al. [2]. Also, searching Internet images of the vagina-cervix shows many cases close to 90 deg.
  2. ^ Pendergrass, et.al: Shape and Dimensions of the Human Vagina. In Gynecol. Obst. Invest.> 1996 42:178-182