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

Explain why the plasmid is described as a vector, Humans produce insulin fr...

Humans produce insulin from certain cells in the pancreas.The insulin gene is isolated from a human pancreas cell and then inserted into a plasmid.The DNA responsible for the synth

Mechanism of urine formation, MECHANISM OF URINE FORMATION - Production...

MECHANISM OF URINE FORMATION - Production of urine is uripoisis or diuresis. First of all it was explained by Kushney. Nephron separates acidic urine from basic blood, so ma

Are environmental phenotypical changes, Are environmental phenotypical chan...

Are environmental phenotypical changes transmitted to the offspring? Changes caused on phenotypes by the environment are not transmitted to the offspring (unless their primary

Which statement is true of the energy levels, Which statement is true of th...

Which statement is true of the energy levels of electrons in shells? A) All the electrons in an atom have similar amounts of energy. B) Electrons must lose energy to move from the

Names and uses of the various laboratory tools, What are the names and uses...

What are the names and uses of the various laboratory tools? Tools are beakers, microscopes, tweezers, hot plates, lasers, test tubes, voltmeters, Erlenmeyer flasks, thermomete

Define the phytate and protein interaction, Define the Phytate and Protein ...

Define the Phytate and Protein Interaction? You may be more familiar with phytate's role in mineral absorption. However phytates also bind with starch and protein. Depending on

Find human anatomy & physiology laboratory manual, I can not find Human Ana...

I can not find Human Anatomy & Physiology Laboratory manual 10th edition cat version by Marieb/mitchell in expertsmind homework help, I have the text book just need to make sure I

What is the difference between diffusion and osmosis, Q. What is the differ...

Q. What is the difference between diffusion and osmosis? Osmosis is the phenomenon of movement of solvent particles in general, water from a region of lower solute concentratio

How to recognition of congenital heart disease, How to Recognition of Conge...

How to Recognition of Congenital Heart Disease ? The manifestations of CE-ID are different in a neonate, an infant or a child. It is often easy to recognise the presence of CHD

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