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

Creating a zoobook, Animal class....phylum arthropoda subphylum arthropoda

Animal class....phylum arthropoda subphylum arthropoda

Conditions required for mimicking pericardial effusion, Q. Conditions requi...

Q. Conditions required for Mimicking Pericardial Effusion? In 2DE few conditions can mimic PE. a) Pericardial fat-Mostly localized anteriorly. Absence of fat in the posterio

Silver point and silver point removal-endodontics principles, Silver point:...

Silver point: -    Uses of silver point: ease of handing and placement, ductility, radiopacity,and have  some antibacterial activity. -    Lack of acceptable 3D seal of the ca

Domestication - wildlife, Domestication - Wildlife It means that man h...

Domestication - Wildlife It means that man has taken under his direct care the living beings which are useful to him. Through extensive breeding programmes, he has modified th

Classification of living organisms – species, Classification of Living Orga...

Classification of Living Organisms – Species You have by now already come across the word 'species'. The word has a definite meaning in biology. Although the living world is v

To study the gas produced when yeast acts on sugar, To study the gas produc...

To study the gas produced when yeast acts on sugar Place some clear lime water in a test tube and have a pupil exhale by a soda straw placed in the lime-water. Soon the lime-wa

Define physiological effects on the git of prebiotics, Define Physiological...

Define Physiological effects on the GIT of prebiotics? Since prebiotics are fermented by the gut microflora, they may have physiological effects on the GIT such as: Cont

What do you mean by dicoumarol, Q. What is dicoumarol? How does this substa...

Q. What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity? Coumarinic anticoagulants cannot be administered during p

Explain the programmed senescence theory of ageing, Define senescence Expla...

Define senescence Explain the 'programmed senescence theory' of ageing.

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