Nearly 300,000 women die of cervical cancer every year. That’s a sobering global statistic, but even more sobering is that the large majority – about 85 percent – of those deaths occur in developing countries, where adequate detection and treatment methods are not readily available. These deaths would be preventable, if only these countries had access to the kind of health care that more developed nations do.
A group of Rice University students have developed a 3D printed device to teach healthcare providers in developing nations how to screen for cervical cancer. Seniors Christine Luk, Rachel Lambert and Elizabeth Stone are all enrolled in a course called Global Health Design, and they worked together with graduate student Sonia Parra to create a low-cost, interactive training model that mimics a woman’s pelvic region. This model can be used to practice different cervical cancer screening and treatment procedures.
“More than 90 percent of cervical cancer cases are preventable. Prevention is accomplished through screening and, if necessary, treatment. This device is specifically designed so health care providers in developing countries and low-resource regions — many of whom lack gynecological training — learn to screen for and treat cervical cancer,” said Stone.
The training model was developed at Rice’s Oshman Engineering Design Kitchen (OEDK) and was based on other models created by students in past years. It was created in partnership with Rice 360° Institute for Global Health and the University of Texas MD Anderson Cancer Center. The device includes several different 3D printed models designed to resemble cervixes that are normal, precancerous or cancerous. The models fit into a holder that attaches to the back of the device and can be adjusted to simulate the different positions of a cervix. They can easily be switched around to mimic different conditions a gynecologist might encounter, and can also be dabbed with hot water to mimic the appearance of precancerous lesions.
“The main reason for this is because these countries are not able to implement the standard of care,” Parra explained. “And many times it’s also due to the lack of training for providers to learn standard cervical cancer screening and prevention skills needed in order to screen and provide prevention services for the entire population.”
It can be dangerous for those without the proper training to try to perform these procedures, she added.
“This is why the device is necessary and has such potential to save lives,” she said.
The device also has model cervixes made of a ballistic gel that can be used to train healthcare professionals to perform several different procedures:
- Colposcopy, a method of examining the cervix, vagina and vulva when results of a Pap smear are abnormal
- Cervical biopsy
- Cryotherapy, which uses freezing gas to destroy precancerous cells on the cervix
- Loop electrosurgical excision procedure, or LEEP, which uses a small electrical wire loop to remove abnormal cells from the cervix
“Here in the states we have the ability to perform Pap smears and other practices, but in other countries where this model is used, such as Mozambique and El Salvador, they may not have the necessary infrastructure to do so,” said Luk. “That’s why it’s important that this model can train as many procedures as possible.”
So far, the students have used the 3D printed training device in clinics in El Salvador and the Rio Grande Valley in Texas, with each training session being modified to fit the specific needs of an area. According to Lambert, doctors attending these sessions have expressed interest in acquiring devices with which to continue training, or even making their own. The students hope to, in the future, work with a manufacturer to mass produce the devices.
3D printing is helping to create devices for training, detection and diagnosis, modeling, and treatment of cancer around the world as technology helps to democratize healthcare.
Discuss this and other 3D printing topics at 3DPrintBoard.com or share your thoughts below.[Source: Rice University / Images: Jeff Fitlow]
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