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Ohio high school students build prosthetic hand for 5-year-old girl

She hopes to use it to conquer the monkey bars
Posted: 5:32 AM, May 16, 2019
Updated: 2019-05-16 12:58:31Z
Ohio high school students build prosthetic hand for 5-year-old girl

CINCINNATI — Five-year-old Hansika Hamre beamed Wednesday as a group of Lakota East High School students presented her with a gift that could change her life forever: A prototype prosthetic hand made specifically for her.

"If you don't like it, you can let me know," senior Cali Hoffman told her. "We'll fix it for you, OK?"

Hansika just kept smiling.

She was born with a condition called symbrachydactyly, which causes babies to be born with shorter digits or missing fingers and toes. Hansika's left hand is fully developed, with five fingers and a full range of motion, but her right isn't.

"She's incredibly independent," her mother, Cara Hambre, said. "She can do lots of things on her own."

To help Hansika do even more, Hoffman and her engineering classmates at Lakota East through Butler Tech — a local technical trainign school — decided to create a prosthetic hand for their senior capstone project. They had help Kinetic Vision, a locally-based technology and product development company, which helped them take 3D geometric scans of both hands so they could build a new prosthetic that fit the little girl perfectly.

"Seeing her face, it just makes everything we've gone through just worth it," Hoffman said Wednesday, a senior working on the project. She said it was important for Hansika to really like her new hand, and the group would make any changes she wanted to ensure she had a final product that fit her needs.

The class gives the students a chance to experience engineering in a real-life setting, according to engineering instructor Ken Kinch.

"They're using the skills they've learned on a real-world challenge, and I think it also drives home the importance of community service," he said.

Hansika's father, Erik Hamre, agreed.

"To have them kind of reach out and kind of do something so neat and special for her. I mean it's pretty cool to see kids these days show that kind of care and love," he said.

Senior Sam Billisits, who is also working on the project, said he and his classmates went with Hansika to a local playground near the start. There, they saw her tackle a challenge exacerbated by her symbrachydactyly: The monkey bars. She still loves them, but her limb difference means she needs to approach them differently from most other children.

"She was doing monkey bars just by hanging her wrist into it," said Billisits.

He said the group really hopes her new prosthetic will make it easier. Hansika hopes so, too.

"I really want to do the monkey bars by myself," she told the students when she saw the hand.

And that's just one item on the list, according to her mother: "(She wants to) button her buttons and you know, kind of tie her shoe laces and things like that that we all take for granted."

The students designed the prosthetic to move based on how she bends her wrist. When bent forward, the fingers contract. When bent backward, the fingers release. They also had an idea to use a sports glove to house the prosthetic and also give Hansika more grip.

"I play softball, they play football," said Hoffman. They bought several sized gloves to see which was the best fit.

The students will finalize their design and give it to Hansika on Friday.