1 / 7

The Bjork-Shiley Heart Valve

The Bjork-Shiley Heart Valve. By Daniel Wec. Brief Overview. the disc to open and close to enable the blood to flow through. The Bjork-Shiley Heart Valve is an artificial heart valve used to deal with defective heart valves or heart valvular diseases.

luke
Download Presentation

The Bjork-Shiley Heart Valve

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Bjork-Shiley Heart Valve By Daniel Wec

  2. Brief Overview the disc to open and close to enable the blood to flow through. • The Bjork-Shiley Heart Valve is an artificial heart valve used to deal with defective heart valves or heart valvular diseases. • It is a mechanical heart valve and has been in use since the 1970s. • It is based on a tilting disc design where two struts (inlet and outlet) allow

  3. History • 1969 – The Bjork-Shiley Heart Valve is developed by Dr. Viking Bjork and Donald Shiley. • 1970s – It is one of the most common mechanical heart valves to be implanted in patients who require an artificial heart valve. • 1979 – Pfizer buys out Shiley, Inc and creates secrecy agreements which prevent important information (faulty outlet tip) to be released to the FDA and doctors. • 1986 – FDA takes the heart valve off the market. • 1992 – Pfizer sells Shiley’s businesses to Sorin Biomedical. • 1994 – Lawsuit is settled and Pfizer is to pay around $20 million (some estimates are closer to $200 million.)

  4. Currently • Alliance Medical Technologies purchased the heart valve line from Sorin Biomedical. • The firm has former Shiley and Pfizer employees working for it.

  5. Limitations • Open-Heart Surgery • Blood Thinning Medication • Backflow • Blood Infection • Blood Tests • 30 year lifespan

  6. Future The Bjork-Shiley Heart Valve can once again become used and if it is, the following are improvements that can be made to allow the device to function better: • Remove the need for blood thinning medication. • Reduce the amount of backflow. • Lower the risk of blood infection. • Increase the time between blood tests from 4-6 weeks or possibly even remove the need for blood tests at all. • Increase the durability and, in turn, the lifespan of the device.

  7. Works Cited • "Artificial Heart Valve." Wikipedia. N.p.. Web. 24 Nov 2012. <http://en.wikipedia.org/wiki/Artificial_heart_valve> • "Bjork Shiley Heart Valve." Lawyers and Settlements. N.p., 24 2012. Web. 24 Nov 2012. <http://www.lawyersandsettlements.com/lawsuit/bjork_shiley_heart_valves.html> • "Bjork-Shiley valve." Wikipedia. N.p.. Web. 24 Nov 2012. <http://en.wikipedia.org/wiki/Bjork–Shiley> • "Mechanical Heart Valves." cedars-sinai. N.p., n.d. Web. 24 Nov 2012. <http://www.cedars-sinai.edu/Patients/Programs-and-Services/Heart-Institute/Centers-and-Programs/Cardiothoracic-Surgery-Services/Heart-Valve-Repair-and-Replacement/Mechanical-Heart-Valves.aspx; • "Mechanical Heart Valve." drexel.edu. N.p., 17 2008. Web. 24 Nov 2012. <http://www.pages.drexel.edu/~nag38/History.html>

More Related