BME103 s2013:T900 Group7 L3: Difference between revisions
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'''The ''Must Not Have'':''' | '''The ''Must Not Have'':''' | ||
* A must not have for this product would definitely be imaging process | * A must not have for this product would definitely be the imaging process being manual. The problem with the imaging being manual is that it takes a lot of time and effort to finally receive results. If patients or students are waiting for their PCR results, it would be very inconvenient and waste of time if the process of florimetry took so long because it was all manual. | ||
* Another must not have for the PCR machine is having an easy way to mix drops during imaging. It is an easy way to lead to cross contamination. This could lead to serious problems when it comes down to the florimetry steps of the PCR process. It could be concluded that a patient does in fact have the gene when they actually don't; or even worse, a patient could come up negative when they actually are at risk of developing cancer. | * Another must not have for the PCR machine is having an easy way to mix drops during imaging. It is an easy way to lead to cross contamination. This could lead to serious problems when it comes down to the florimetry steps of the PCR process. It could be concluded that a patient does in fact have the gene when they actually don't; or even worse, a patient could come up negative when they actually are at risk of developing cancer. | ||
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'''We chose to include these new features''' | '''We chose to include these new features''' | ||
Our new and improved PCR machine will be an all-in-one system encompassing the process of PCR, fluorimeter imaging, and image analysis. The results of the system will be displayed on screen after the testing is completed. Having an all in one system increases the machines ease of use as it does not require any additional machinery in order to operate. | |||
The LED screen of the old open PCR system will replaced with a standard touchscreen display. From this screen the user can interact with the built in software needed to calibrate the PCR process. The display is simple to use and will walk the user through a step by step process of running the machine. The results of the tests will be displayed here as well as real-time updates and time estimation. | |||
Because the new design is all inclusive there is no need to remove the DNA from the machine throughout the entire process. The test tube holding tray of the old open PCR system will be replaced by a tray that will hold the test tubes like a rack allowing them to hang freely. This will not only allow for better (faster) heating/cooling, but will allow for the fluorimeter analysis to be done without removing the DNA from the system. After the user adds the SYBR green to each DNA sample in the test tubes, the system will automatically shine a laser through the clear test tubes and cause the DNA samples to become florescent. A built in camera will image each sample of the florescent DNA. | |||
The built in imageJ software will then automatically analysis these images and determine the ultimate results of the test. A detailed copy of the testing can be downloaded from the device and imported to any computer for a more detailed understand of the tests that were run as well as any errors that may have occured. | |||
The size of the device will remain relatively similar, however the parts of the old system would be replaced with more durable parts such as hard plastic or metal instead of wood. In order to increase the mobility of the system an optional battery pack would be available. | |||
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<!-- Changing the machine will require new instructions for using the machine. Write a short step-by-step list of instructions on how to set up and use the new machine. The instructions must be specific to your new design. --> | <!-- Changing the machine will require new instructions for using the machine. Write a short step-by-step list of instructions on how to set up and use the new machine. The instructions must be specific to your new design. --> | ||
1. | 1. Turn on the machine and click calibrate. Enter the correct setting for which you would like the machine to run during the PCR phase. | ||
2. Open the lid a place the DNA samples (in clear test tubes) on the hanging rack. Close the lid and press run on the screen. The screen will give a time estimation for the PCR phase. | |||
3. After the PCR phase, open the lip and add an appropiate amount of SYBR Green to EACH DNA sample. Close the lid | |||
4. Enter the desired number of sample images to be taken for analysis and press run. The system will automatically take pictures and analyze them. The results will be displayed on the screen. The time for this process depends on the amount of samples desired. | |||
5. After the images have been analyzed the results will be displayed on screen. From here the user can opt to export the detailed results to a flash drive via a usb port in the system. | |||
<!-- If your team decided not to change any of the machinery/ devices, write a short step-by-step list of instructions on how to set up and use each machine. You may want to consider modifying the instructions to improve ease of use. --> | <!-- If your team decided not to change any of the machinery/ devices, write a short step-by-step list of instructions on how to set up and use each machine. You may want to consider modifying the instructions to improve ease of use. --> |
Revision as of 22:30, 16 April 2013
BME 103 Spring 2013 | Home People Lab Write-Up 1 Lab Write-Up 2 Lab Write-Up 3 Course Logistics For Instructors Photos Wiki Editing Help | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
OUR TEAMLAB 3 WRITE-UPOriginal System: PCR ResultsPCR Test Results
* Ave. INTDEN = Average of ImageJ integrated density values from three Fluorimeter images
Bayes Theorem equation: P(A|B) = P(B|A) * P(A) / P(B)
Calculation 2: The probability that the sample actually has a non-cancer DNA sequence, given a negative diagnostic signal.
Calculation 3: The probability that the patient will develop cancer, given a cancer DNA sequence.
Calculation 4: The probability that the patient will not develop cancer, given a non-cancer DNA sequence.
New System: Design StrategyThe Gotta Have:
New System: Machine/ Device EngineeringSYSTEM DESIGN
We chose to include these new features Our new and improved PCR machine will be an all-in-one system encompassing the process of PCR, fluorimeter imaging, and image analysis. The results of the system will be displayed on screen after the testing is completed. Having an all in one system increases the machines ease of use as it does not require any additional machinery in order to operate. The LED screen of the old open PCR system will replaced with a standard touchscreen display. From this screen the user can interact with the built in software needed to calibrate the PCR process. The display is simple to use and will walk the user through a step by step process of running the machine. The results of the tests will be displayed here as well as real-time updates and time estimation. Because the new design is all inclusive there is no need to remove the DNA from the machine throughout the entire process. The test tube holding tray of the old open PCR system will be replaced by a tray that will hold the test tubes like a rack allowing them to hang freely. This will not only allow for better (faster) heating/cooling, but will allow for the fluorimeter analysis to be done without removing the DNA from the system. After the user adds the SYBR green to each DNA sample in the test tubes, the system will automatically shine a laser through the clear test tubes and cause the DNA samples to become florescent. A built in camera will image each sample of the florescent DNA. The built in imageJ software will then automatically analysis these images and determine the ultimate results of the test. A detailed copy of the testing can be downloaded from the device and imported to any computer for a more detailed understand of the tests that were run as well as any errors that may have occured. The size of the device will remain relatively similar, however the parts of the old system would be replaced with more durable parts such as hard plastic or metal instead of wood. In order to increase the mobility of the system an optional battery pack would be available.
1. Turn on the machine and click calibrate. Enter the correct setting for which you would like the machine to run during the PCR phase. 2. Open the lid a place the DNA samples (in clear test tubes) on the hanging rack. Close the lid and press run on the screen. The screen will give a time estimation for the PCR phase. 3. After the PCR phase, open the lip and add an appropiate amount of SYBR Green to EACH DNA sample. Close the lid 4. Enter the desired number of sample images to be taken for analysis and press run. The system will automatically take pictures and analyze them. The results will be displayed on the screen. The time for this process depends on the amount of samples desired. 5. After the images have been analyzed the results will be displayed on screen. From here the user can opt to export the detailed results to a flash drive via a usb port in the system.
New System: ProtocolsDESIGN We chose to include these new approaches/ features
New System: Research and DevelopmentBACKGROUND
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