Need to demonstrate 44 Newtons of force

  • Thread starter Thread starter stephejo
  • Start date Start date
  • Tags Tags
    Force Newtons
AI Thread Summary
A medical doctor seeks a standardized method to demonstrate the 44 Newtons of force required for Sellick's maneuver on the cricoid ring while the patient is supine. The discussion suggests using a 10-pound weight, which is approximately 4.5 kg, to represent this force effectively. Various ideas are proposed, including creating a lever system that requires 10 pounds of force to engage, allowing students to experience the necessary pressure firsthand. Clarification is provided that a fixed pulley does not alter the force magnitude but only its direction. Overall, the conversation emphasizes practical approaches to illustrate the concept of force in a teaching environment.
stephejo
Messages
3
Reaction score
0
I hope someone can help me.

I am a medical doctor and need to have a standardized way to demonstrate the force needed to press on the front of the cricoid ring of the larynx (neck) in order to occlude the esophagus (Sellick's maneuver) with the patient lying supine... so the thumb and forefinger press on the front of the neck with 44N.

The studies specify 44 Newtons. How much is that. Looks to me like 10lbs or 4.5kg on earth.

Is there an easy model that I can make and pass around the lecture room to show what about 44N "feels like"??

Thanks.
 
Physics news on Phys.org
Why not just get a 10 lb dumbbell? Or a 10 lb plate for a barbell set?

If you want to have fun, make a lever that requires 10 lbs of force to depress--then students can see just how hard they must push with thumb and forefinger.
 
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?

Thanks!
 
My first thought was to use some sort of top loading scale. Maybe like this.
4724_100X100.jpg
 
stephejo said:
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?
Sure, that would work. (There are a zillion ways to go.)
 
Perfect idea.

Thanks!
 
stephejo said:
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?

Thanks!
Fixed pulley, yes. Fixed pulley does not change the force magnitude. Only direction.
 

Hot Threads

Recent Insights

Back
Top