So this valve is called the Tricuspid valve.

And it passed through the valve here. So this valve is called the Mitral valve.

Civil Horizontal Valve

One will be the tricuspid valve and the other the mitral valve.

But before it goes it has to passed another valve. So this is a valve right here. Call it Pulmonary valve.

Again, a prosthetic arm was built.

The main valve is turned off.

Here you've got the aortic valve.

This is called a cycle valve tube.

Up here you have the pulmonary valve.

And then the final valve, I need to find a nice spot to write it maybe to right here, this final valve that passes through is called the Aortic valve.

You can see how the pulmonary and aortic valve are closed when the mitral and tricuspid valve are open.

Can I borrow a heart valve from you?

And this is how you make a valve.

This is a really basic, basic prosthetic limb under here.

It's the development of a prosthetic device for treating blindness.

Tim uses his thoughts to control an advanced prosthetic arm.

Tim uses his thoughts to control an advanced prosthetic arm.

It's gonna go back perhaps through the mitral valve, it can go there, or it might go through the tricuspid valve.

This is actually a heart valve, which we engineered.

A prosthetic limb doesn't represent the need to replace loss anymore.

That guy who smuggled heroin in his prosthetic leg? Yeah, him.

I welded the breech, but the valve is still gaping.

Does the color of the valve matter? What matters here?

Let's watch. (Sound of air escaping from valve) (Music) (Whirring sound)

We realized that prosthetic makeup just wouldn't hold up, particularly in close up.

Open the air inlet valve to supply compressed air to the machine

And the way you engineer this heart valve is the same strategy.

I mean, people Pamela Anderson has more prosthetic in her body than I do.

You can see two of the leaflets of the aortic valve working there.

The monkey recognized that whatever she did with her arm, this prosthetic arm would do.

So this is what we've been working on, and this is what our prosthetic does.

Well, any sword game where you have to pull a prosthetic thumb to swing a sword.

Now, there's no use of prosthetic makeup or photography of Brad superimposed over another actor's body.

That's Claudia, and that was the first time she got to feel sensation through her prosthetic.

Here you have our tricuspid valve. And I'm gonna label it just as 'T'

I've drawn the pulmonary valve as being open, but is that really the case?

On the starboard side, there's a big valve! Can you crank that boat down?

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

There's a limb prosthetic up here, similar actually one on the soldier that's come back from Iraq.

It has a funny tri lobal shape at the bottom, which contains the aortic valve.

And so, for the vast majority of patients, their best hope for regaining sight is through prosthetic devices.

The un digestive food reaches the Ileo cecal valve and enters the large intestine or colon.

You'll hear S1 when the tricuspid and the mitral valve snap shut. So far so good.

And they are like the fundibulator valve of the architectural, uh, what do you think doctor Joseph?