Group Actions
Engagement
  • Author Author: balearicdynamics
  • Date Created: Date Created
  • Views 791 views
  • Likes 4 likes
  • Comments 6 comments
Related
Recommended

Meditech phase 0 - Annex I: improving the eye probe camera

balearicdynamics

Case design improvements

The Meditech eye probe camera is conceived to work nearby the main device component for easier usage. The camera position with the RGB light ring (see the image below) in the case prototype is fixed but need to be able to rotate and should be plied when the module is not in use to fit better in the component side of the case. This means to redesign this part of the case adding this two movements. As this part is the cover of the camera flat cable, it does not affect the circuitry and connections.

imageimage

Adding vision disease tests

Together to the active tests that can be done with the camera probe there is a series of test that can improve the vision potential diseases of the patient based on the use of the screen and special coloured patterns. The following images are two examples of the patterns used to generate VEP, Visually Evoked Patterns than can be used to record iris contraction and other secondary parameters, avoiding one of the associated analysis - The EEG - that need specialised personnel and can't be applied in the conditions usually expected for the Meditech device application.

imageimage

Another series of tests that should be implements with the esclusive use of the main color display are visual patterns to detect color blindness.

image

There is a consideration about this kind of tests. As apparently these can be useful only in certain kind of analysis and conditions, i.e. during a visit in an hospital, really the things are different. If we think the kind of environment the Meditech device is provided for, all the possible simple yet realiable diagnostic evaluations maybe useful at least for two reasons:

  1. Extend as much as possible the application possibilities offered by the device, increasing its versatility.
  2. Give the option to the medical operator to produce a patient investigation fast, simple and as much as complete possible.
Parents

  • Hi Enrico

    The following images are two examples of the patterns used to generate VEP, Visually Evoked Patterns than can be used to record iris contraction and other secondary parameters, avoiding one of the associated analysis - The EEG - that need specialised personnel and can't be applied in the conditions usually expected for the Meditech device application

    This means that you can detect brain activity (like alpha and beta waves) by just analysing iris contractions? That's really interesting! Do you need an high-speed camera for those analysis or the PiBoard is ok?

     

    Ambrogio

  • in reply to amgalbu

    Hi Ambrogio,

     

    maybe I have explained not so well the concept. As a matter of fact, here I don't detect direct brain activity due the problem that and EEG is a complex analysis requiring well trained stuff, usually a reasonable long time and a quite place to reduct almost all the external influences. But anyway there are secondary factors that interact in the body reactions in minor quantity. Some of these maybe useful to detect as least the suspect of some injuries that requires a more in-dept investigation. Then as Meditech can work in a cross referenced mode Some patterns also generate different answers in the ECG and heart beat. These are not definitive information but maybe useful. As I mentioned in the final phase zero post the fine tuning of this part of the VEP should be done with the support of a specialist I should meet probably next week.

     

    About the camera, for most of the physiological iris reaction time the camera frame rate maybe sufficient for a differential image check.

     

    Enrico

Comment
  • in reply to amgalbu

    Hi Ambrogio,

     

    maybe I have explained not so well the concept. As a matter of fact, here I don't detect direct brain activity due the problem that and EEG is a complex analysis requiring well trained stuff, usually a reasonable long time and a quite place to reduct almost all the external influences. But anyway there are secondary factors that interact in the body reactions in minor quantity. Some of these maybe useful to detect as least the suspect of some injuries that requires a more in-dept investigation. Then as Meditech can work in a cross referenced mode Some patterns also generate different answers in the ECG and heart beat. These are not definitive information but maybe useful. As I mentioned in the final phase zero post the fine tuning of this part of the VEP should be done with the support of a specialist I should meet probably next week.

     

    About the camera, for most of the physiological iris reaction time the camera frame rate maybe sufficient for a differential image check.

     

    Enrico

Children
No Data