Understading control mechanics of a surgical device

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Discussion Overview

The discussion focuses on understanding the control mechanics of a surgical device, particularly how movement is transmitted, augmented, or dampened, as well as the scaling of movement in the device's operation. The context includes technical explanations and conceptual clarifications related to the device's mechanics as described in a referenced paper.

Discussion Character

  • Technical explanation, Conceptual clarification

Main Points Raised

  • One participant seeks to understand the mechanism of movement transmission in the surgical device, referencing a specific section of the provided paper.
  • Another participant points out that the paper contains a reasonably good description of the transmission system, suggesting that further details can be found in the specified paragraph.
  • A different participant expresses a desire to understand the scaling of movement, noting that the paper mentions it but lacks a clear explanation of how to achieve it.
  • One participant explains that if the input and output levers are the same size, movement remains unscaled, while different sizes result in proportional movement changes, using bicycle brakes as an analogy.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specifics of movement scaling, and there are varying levels of understanding regarding the transmission mechanism. The discussion remains unresolved on these points.

Contextual Notes

The discussion may be limited by the assumptions made in the referenced paper and the participants' interpretations of its content. There may also be unresolved mathematical steps related to the scaling of movement.

Moslem
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Hello everyone,
This Moslem fathy, I am a heart surgeon,
This is a video of a surgical device, I would like to understand its mechanism in some
Aspects


http://psdl.engin.umich.edu/pdf/Awtar_JMedDev_FlexDex.pdf

this is a pdf that expalins the concept

I would like to know how the movment is transmitted, augmented or dampened
 
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It appears to be reasonably well described in the paper you posted. See para 5.4 "Transmission system".
 
The scaling of movment is another point that I want to understand, how to do it? It just mentioned in the pdf but not how
 
If the input and output levers are the same size you get unscaled movement. If they are different sizes you get more or less movement proportional to the difference. Look at bicycle side pull hand brakes. You pull many centimeters but the brakes only move a small fraction of that.

BoB
 
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