Mechanical valves, Biology

Assignment Help:

Mechanical Valves

They are made of a combination of metal alloys, pyrolite carbon and dacron.

Types of Mechanical Valves

Caged-ball Valve (Star-Edwards)

A metal cage with several struts mounted in a circular ring, hollow metal or plastic ball inside cage. Durability is high, but possibility of blood clots forming on or around the valve with the risk of embolism is high.

Tilting Disc Valve (Bjork-Shiley Medtronic Hall)

Mobile lens shaped disc attached to a circular sewing ring by two offset transverse struts. This has high durability and efficiency.

Bileaflet Valve

Two pivoting semi-circular discs that open centrally, mounted

(St. Jude)

Directly onto a sewing ring.


Related Discussions:- Mechanical valves

Define non-digestible oligosaccharides (ndo), Define Non-Digestible Oligosa...

Define Non-Digestible Oligosaccharides (NDO) Among the various food components, the best prebiotic effects seen to be exerted by the NDOs. They are oligomeric carbohydrates, wh

Primary consideration in risk management decisions, Protection of  human...

Protection of  human  health should  be  the primary consideration  in risk  management  decisions. Decisions on acceptable levels of risk should be determined primarily by hum

What is the name of the larva of corals and sea anemones, What is the name ...

What is the name of the larva of corals and sea anemones? What is the biological significance of that larval stage? Sexual reproduction in corals and sea anemones has a larval

Zoogly, are protozoans primitive to life .

are protozoans primitive to life .

Are bacteria the only prokaryotic beings, Q Are bacteria the only prokaryot...

Q Are bacteria the only prokaryotic beings? Prokaryotic beings are classified into two big groups: bacteria and archaebacteria (this last also known as eubacteria). Compared

What is the combination of human advances, Please consider the phenomenon o...

Please consider the phenomenon of bacterial resistance to antibiotics. How did the combination of human advances and basic evolutionary principles lead to this situation? How is it

Define the functionality of cellulose, Functionality of cellulose Cellu...

Functionality of cellulose Cellulose has many uses as an anticaking agent, emulsifier, stabilizer, dispersing agent, thickener and gelling agent, but these are generally subsid

Define insect resistant crops in ecological way, Insect resistant crops (IR...

Insect resistant crops (IRC) Should reduce use of insecticides. This is beneficial to environment because:  -  More beneficial insects around as they are not killed by in

Define the visual accommodation, Q. What is visual accommodation? Visua...

Q. What is visual accommodation? Visual accommodation is the phenomenon of varying the curvature of the crystalline lens to make possible the difference of its refractivity to

Explain about the lactation process, Explain about the Lactation Process? ...

Explain about the Lactation Process? Lactation is a physiologic process which has profound relevance for both the mother and the newborn. It is the period following pregnancy w

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd