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90 million women globally experience pain and bleeding with the cervical tenaculum.

  • Almost 90% of women report mild to severe pain in office based gynecological procedures with the cervical tenaculum. 1
  • Nearly 20% of women in reproductive age, report fear of pain as the main reason for refusing an IUD for contraception. 2


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The Intrauterine Contraceptive Device (IUD) is 99% effective in preventing pregnancies and is considered the most cost-effective birth control method available today.

But what triggers the pain?

For procedures that require access to the uterus, gynecologists insert the tenaculum into the vagina, and pierce the cervix’s tissue to grab, stabilize and pull it steadily.

Such procedures are often carried out without anesthesia.

Dr. Martin Winkler – well-known for his many articles on Women’s Health – describes the tenaculum as a «butcher’s hook», that can make holes in the cervix.

While the tenaculum is highly effective because it provides a firm and strong hold of the cervix, it often causes pain and bleeding.

This undesirable experience discourage clinicians from recommending and women from adopting the Intrauterine Contraceptive Device (IUD).

The IUD is considered the goal standard in contraception because it is 99% effective in preventing pregnancy.


  1. Interventions for pain with intrauterine device insertion
  2. Data on File. Internal Aspivix Survey with 500 European Women

Meet CarevixTM.

Suction Cervical Stabilizer.

Carevix is a next-generation atraumatic cervical tenaculum designed as an alternative to the traditional tenaculum commonly used in gynecology.

It has been carefully designed and developed in close collaboration with gynecologists, nurses and midwives and patients.


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Carevix uses suction technology to secure the cervix, delivering an atraumatic experience to the patients without compromising on performace.

Early results from First-in-Women clinical trial in Switzerland showed promising results with 80% reduction in pain and no bleeding during the insertion of an IUD.

The First in Women Phase-II, a comparative randomized trial, is currently underway in Switzerland, at the Lausanne and Geneva University Hospitals (CHUV and HUG). The results from this trial are expected in August 2021.


Dr. Helene Legardeur

Gynecologist at CHUV, Investigator Aspivix First in Women Trial 

“I fully enjoyed testing the novel Aspivix device for cervix stabilization during IUD insertion procedures. The device seems to be valued by female patients as it is atraumatic and significantly reduce pain. A larger clinical study to demonstrate its benefits in comparison with the gold standard is underway”.

Prof. Patrice Mathevet

Chief Gynecologist at CHUV, Principal Investigator Aspivix First in Women Trial

“The IUD is considered the most cost-effective contraceptive, but many women experience pain and bleeding during insertion related to the tenaculum, a forceps-like surgical instrument used in the procedure. The innovative Carevix device is easy-to-use, and I am encouraged by its potential to enhance women’s overall experience during IUD placement.”

Dr. Ursula Nadig

Gynecologist at Private Practice in Zurich

“Throughout my career in gynecology, I have always tried my best to make my female patients comfortable during routine procedures. The simplicity of the Carevix device and its ingenuity makes me wonder why did we have to wait so long? I look forward to using this new device in my practice, with my female patients.”