AddThis

Bookmark and Share

Tuesday, 20 July 2010

Blood Pressure Monitor Block Diagram and Design Considerations

Design Considerations:

Blood pressure monitors can use Korotkoff, Oscillometry, or Pulse Transit Time methods to measure blood pressure. They employ a pressure cuff, pump, and transducer to measure the blood pressure and heart rate in three phases: Inflation, Measurement, and Deflation. They include an LCD, memory recall, selection buttons, power management, and USB interface.

The pressure transducer produces the output voltage proportional to the applied differential input pressure. The output voltages of the pressure transducer range from 0 to 40 mV, which needs to be amplified so that the output voltage of the DC amplifier has a range from 0 to 5V. This is why, we need a high-gain amplifier. Then the signal from the DC amplifier will be passed on to the band-pass filter. The DC amplifier amplifies both DC and AC component of the signal. The filter is designed to have large gain at around 1-4 Hz and attenuate any signal that is out of the pass band. The AC component from filter is important for determining when to capture the systolic/diastolic pressures and heart rate of the patient. The final stage of the front end is an AC coupling stage, after which the signal is sent to analog to digital converters, and digitized.

The digital measurements of pressure and heart rate are performed by the microprocessor. Measurements results are stored in EEPROM or FLASH memory as a data log that can be uploaded to a PC via USB. The analog circuit is used to amplify both the DC and AC components of the output signal of pressure transducer so that we can use the MCU to process the signal and obtain useful information about the patient’s health.

Block Diagram:



Download Useful Technical Documents:

EEPROM Emulation With the TMS320F28xxx DSCs

A Single-Chip Pulsoximeter Design Using the MSP430

Source: Texas Instruments

28 comments:

  1. Thanks for giving information about
    Blood Pressure Monitor products. Your blog is very appreciable is a global leading manufacturer of healthcare equipment. Healthgenie is an online shopping store and it provides wide ranges of personal care, elderly care, baby care, beauty, nutrition, diabetes, wellness and homecare. This article mainly deals about the high blood pressure and blood pressure monitor.

    ReplyDelete
  2. I know this web page offers quality based content and extra information,
    is there any other web page which offers these kinds of
    stuff in quality?

    my webpage; vergleich krankenkasse
    Visit my website :

    ReplyDelete
  3. Hello to all, how is all, I think every one is getting more from
    this web site, and your views are nice in favor of
    new people.

    my weblog: make money online clickbank
    Feel free to visit my web-site ::

    ReplyDelete
  4. You could certainly see your expertise within the work you write.
    The world hopes for even more passionate writers like
    you who are not afraid to say how they believe. All the time go after your heart.


    Also visit my blog post ... Billigste private krankenversicherung
    My web site ... Billigste private krankenversicherung

    ReplyDelete
  5. Hello! This is kind of off topic but I need some guidance from an established
    blog. Is it very difficult to set up your own blog? I'm not very techincal but I can figure things out pretty fast. I'm thinking about making my own but I'm not sure where to begin. Do you have any tips or suggestions? Thanks
    My blog post ... make cash online

    ReplyDelete
  6. Aw, this was an extremely good post. Finding the time and actual effort
    to create a very good article… but what can I say… I hesitate a lot and never seem to get anything done.
    Here is my weblog ; best Seo company Toronto

    ReplyDelete
  7. This design is wicked! You certainly know how to keep a reader amused.

    Between your wit and your videos, I was almost moved to start my own blog
    (well, almost...HaHa!) Fantastic job. I really enjoyed what you had to say, and
    more than that, how you presented it. Too cool!


    Stop by my blog private versicherungen vergleich
    Feel free to surf my blog :

    ReplyDelete
  8. Yes! Finally someone writes about private krankenkasse.
    Also visit my web page - krankenkassen Leistungen vergleich

    ReplyDelete
  9. Hello, this weekend is good in favor of me, since
    this time i am reading this enormous educational
    post here at my house.
    Check out my web page :: kredit für selbstständige

    ReplyDelete
  10. Wonderful goods from you, man. I have understand your stuff previous to and you're just extremely wonderful. I actually like what you have acquired here, really like what you are stating and the way in which you say it. You make it enjoyable and you still care for to keep it smart. I cant wait to read far more from you. This is actually a great web site.
    Also visit my blog post ; damenschuhe billig kaufen

    ReplyDelete
  11. I truly love your site.. Great colors & theme.

    Did you build this website yourself? Please reply back as I'm attempting to create my own personal website and would like to know where you got this from or what the theme is called. Cheers!
    Also see my web page - loan refinance Bad Credit

    ReplyDelete
  12. Thanks for the auspicious writeup. It in fact was once a leisure account it.
    Look complicated to far introduced agreeable from you!
    By the way, how can we keep up a correspondence?


    Here is my web-site ... adsens
    Here is my page :

    ReplyDelete
  13. Spot on with this write-up, I absolutely believe this website needs far more attention.
    I'll probably be returning to read more, thanks for the info!
    Here is my site : private krankenkasse vergleich online

    ReplyDelete
  14. This post is worth everyone's attention. When can I find out more?
    Here is my site ; Inclusive Vacations

    ReplyDelete
  15. We are a group of volunteers and opening a new scheme in our community.

    Your website provided us with valuable information
    to work on. You have done a formidable job and our whole community will be thankful to you.
    Also visit my blog ; real estate search engine optimization

    ReplyDelete
  16. After I initially commented I appear to have clicked on the -Notify me when new comments are added- checkbox and
    now every time a comment is added I receive 4 emails with the
    same comment. There has to be a way you can remove me
    from that service? Many thanks!

    my homepage seo Site
    My site : studententarif private krankenversicherung

    ReplyDelete
  17. Attractive section of content. I just stumbled upon your website and in accession capital to
    assert that I acquire actually enjoyed account your
    blog posts. Anyway I'll be subscribing to your augment and even I achievement you access consistently rapidly.

    Here is my website :: Student loan consolidation company
    Also visit my website :: wechseln private krankenversicherung

    ReplyDelete
  18. I'm not sure exactly why but this weblog is loading incredibly slow for me. Is anyone else having this problem or is it a issue on my end? I'll check back later on and see if the problem
    still exists.

    Also visit my web site :: private krankenversicherung Frau

    ReplyDelete
  19. Pretty! This has been a really wonderful article.
    Many thanks for supplying these details.


    my web page: baufinanzierung ohne schufa

    ReplyDelete
  20. Hi! Someone in my Myspace group shared this website with us so I came to look it over.

    I'm definitely enjoying the information. I'm
    bookmarking and will be tweeting this to my followers!
    Exceptional blog and outstanding design and style.


    Here is my website ... Http://Www.Blottr.Com/Breaking-News/Great-Concepts-Way-Repair-Your-Credit
    Also see my website :: www.stpaulschapel.org

    ReplyDelete
  21. I am truly happy to glance at this blog posts which carries tons of helpful information, thanks for providing such information.



    Feel free to visit my page http://www.theladylist.ie/scene/pg/profile/Lela42Q

    ReplyDelete
  22. Please let me know if you're looking for a article author for your site. You have some really great articles and I believe I would be a good asset. If you ever want to take some of the load off, I'd absolutely love
    to write some content for your blog in exchange for a link back
    to mine. Please shoot me an email if interested. Thanks!



    Here is my web site: coldfusion reseller hosting

    ReplyDelete
  23. I truly love your blog.. Pleasant colors & theme.
    Did you develop this web site yourself? Please reply
    back as I'm wanting to create my own personal site and want to know where you got this from or exactly what the theme is named. Appreciate it!

    Also visit my homepage :: click the next internet site

    ReplyDelete
  24. Pretty nice post. I just stumbled upon your blog
    and wanted to say that I've really enjoyed surfing around your blog posts. After all I'll
    be subscribing to your feed and I hope you write again soon!


    Feel free to surf to my blog post; romantic island vacations

    ReplyDelete
  25. you are actually a just right webmaster.
    The site loading velocity is incredible. It kind of feels that you are doing any distinctive trick.

    Furthermore, The contents are masterpiece.
    you have done a fantastic job on this topic!

    Feel free to visit my webpage affiliate marketing companies

    ReplyDelete
  26. I like the valuable info you provide in your articles.

    I will bookmark your weblog and check again here regularly.
    I'm quite sure I will learn many new stuff right here! Best of luck for the next!

    Feel free to surf to my website ... women's stuhrling original watches

    ReplyDelete
  27. Sometimes, the level of your blood pressure temporarily reaches up to high for a several factors and conditions, including: stress, smoking, being overweight or obese, lack of physical activity, too much alcohol consumption. Therefore, either you need to buy bp monitor online or to follow some healthier lifestyles like:

    - healthy diet maintain
    - keep regular exercising
    - workout to weigh lose
    - avoid salt in your food
    - stop smoking and drinking
    - reduce stress from your mind

    If your blood pressure is under control, you might need to visit your doctor only every six to 12 months, depending on other conditions you might have. If your blood pressure isn't well-controlled, your doctor will likely want to see you more frequently.

    ReplyDelete
  28. If you have decided to bring your blood pressure under control and have started medication, this BP monitor from Dr. Morepen will help you check the efficacy of your treatment.
    Blood Pressure Monitor: Dr. Morepen

    ReplyDelete