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Final Product

Results:

Idea 1

Conclusion:

What does this mean for a person without a hand?

  • For a kid, this might mean to be able to ride a bike, or simply hold a pencil or even a cup.
  • For an adult, their opportunity to get a job increases, they can now carry light weight objects with two hands.

Results:

  • In contrast to my first design, the second hand is design to rely on wrist movement.
  • The fingers in the second design were able to move efficiently.

Materials

Prosthetic hands:

Procedures

Functionality

Customized healthcare is extremely expensive, making them less available for amputees.

What is the problem?

  • Design relies on wrist movement.
  • Downward motion creates Cable Tension,which closes the fingers.
  • A move upward opens them.

1 – 3/4″ hardwood dowel

1- 4″ x 1″ Pine plank

5 – bags of #216-1/2 small screw eyes (eyelets)

1 – roll of braided nylon string

1 – bag of 1/4″ wide rubber bands

1 – cup hook (open eyelet)

2 – 3/4″ sheet rock screws

Springs

  • Prosthetic hands are valuable to amputees because it allows them to regain movement.
  • Due to the fact that prosthetic hands are needed in today's society, many designs have been developed throughout the years.

Statistics

New Design:

  • Included a wrist
  • More movement in the fingers

54% Caused by Diabetes

44% Caused by Trauma

>2% Caused by Cancer

10 MILLION PEOPLE IN THE WORLD WITHOUT A LIMB

The average cost of a high-tech prosthetic is:

$5,000 - $50,000

4-5 Years of Wear

30%

Hand Amputees

The problems with the first hand:

The Hand

Prosthesis

The hand is an amazing addition to our body that allows us to perform movements.

Prosthesis is an artificial device that replaces a missing body part.

Prototype

How do we solve

this problem?

Science Fair- Building a Prosthetic Hand

Jazmin Baez

Ms. Basualdo

Period 4

January 22, 2015

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