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Prof. Panos Zavos

Dr. Prof Panos Zavos



The Male Factor Pak (MFP) is a specimen collection condom which allows patients to obtain high-quality semen samples for fertility and sterility testing and for use in other assisted reproductive technologies. By allowing patients to collect a specimen during intercourse, it provides a more natural alternative to yesterday's tradition: masturbation. It also gives medical specialists the opportunity to work and evaluate a more representative sample than ever before.

We suggest a fertility friendly lubricant specifically designed for use at intercourse that has non-spermicidal qualities. It is "sperm-friendly" as it matches the qualities of the fertile cervical mucus, which provides a helpful environment to facilitate conception

Because of the nature of the MFP being a dry, non-lubricated condom, the use of lubricants when using it can enhance better possibilities for higher sexual stimulation with subsequent superior ejaculate production. The superiority will be reflected in higher ejaculate volume, higher sperm number and better quality sperm.

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The Male Factor Pak (MFP) can be used for fertility testing and other treatments. This more natural method of sperm collection is recommended for couples who are experiencing male factor fertility issues while undergoing IUI or IVF.

It also gives medical specialists the opportunity to work with more representative samples produced at intercourse than ever before. Studies show that semen samples obtained through intercourse are superior at producing more viable sperm than those obtained through masturbation.

Improved specimen viability and increased patient acceptance, when masturbation is objectionable, are additional benefits that medical professionals have been waiting for.

U N I Q U E     A D V A N T A G E S 

Non-Spermicidal:  Biologically inert polyurethane condom maintains sperm viability, motility and velocity. No mold, releases, or powders used in condom manufacture.

Psychologically Acceptable:  Allows sample collection at home or other private settings and eliminates patient stress traditionally caused by religious, cultural, or emotional objections to masturbation or coitus interruptus ("pull out").


Comfortable and Gentle:  Ultra-thin polyurethane facilitates sensitivity, satisfaction, and high sexual stimulation.


Easy to Use:  Patient simply cleans genitals prior to use, removes condom when erection has ceased after ejaculation, and closes condom with a provided twist-tie.


Easy to Transport:  Patient seals condom in compact pouch with patient I.D. label, and transports to physician or laboratory, carrying it close to body to maintain specimen temperature.

Sterile:  Individually sealed and packaged.

Learn More About The MFP & Pre-Seed 

Professor Zavos


Panos Zavos
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  • Characteristics of human ejaculates collected via masturbation and a new Silastic seminal fluid collection device.  

    Zavos, PM

    Fertil Steril 43:491, 1985. 

  • Seminal parameters of ejaculates collected from oligospermic and normospermic patients via masturbation and at intercourse with the use of a Silastic seminal fluid collection device. 

       Zavos, PMFertil Steril

       44:517, 1985.

  • Treatment of ejaculatory and spermatogenic dysfunctions in oligospermic patients via collection of ejaculates at intercourse using a seminal fluid collection device.

       Zavos, P.M.

       Infertility, 10(2):167-171, 1987.

  • Clinical use and experience with a new Silastic seminal fluid collection device. 

    Karagounis, C.S., Zavos, P.M., Prapas, J. Prapas, N., Galatos, D., Papanikolaou, N.A. 

    Infertility, 11(4):281-287, 1988.

  • Clinical use of a seminal collection device: improvements of specific seminal deficiencies through use of a seminal collection device at intercourse versus masturbation. 

       Zavos, P.M., Goodpasture, J.C. 

       Infertility, 11(4):289-304, 1988.

  • The inability to produce semen specimens at the time of seminal evaluation may reflect difficulties with sexual drive and deficient seminal parameters. 

    Zavos, PM, Zarmakoupis-Zavos, PN, Correa JR et al

    Middle East Fert. Soc. J. 4:53, 1999.

  • [PDF] Multiple ejaculate collection via the use of a semen collection device at intercourse versus masturbation.

    Zarmakoupis-Zavos, P.N., Zarmakoupis, C.N., Correa, J.R., Zavos, P.M. 

    Middle East Fertility Society Journal, 4 (3): 228-232, 1999.​​​

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