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

Show the characteristic of the dna molecule, Q. One characteristic of the D...

Q. One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during the DNA replication? Ideally the DNA molecule should replicate

Medical management of chronic renal failure, Medical Management   In ch...

Medical Management   In chronic  renal failure  there  is irreversible renal failure. The goals of medical management are:   To promote maximal  renal  function  To ma

Write briefly about the bacterial growth curve, Question 1 Write briefly a...

Question 1 Write briefly about the Bacterial growth curve Question 2 Define Virus. List out the general properties and classification of virus Question 3 What is Immunog

Dna replication at biochemical level, Although there is much talk in the ne...

Although there is much talk in the news about stem cell research, the public and policymakers need to understand how basic body cells work to transmit information and replicate to

What is the estimated percentage of water in the human body, What is the es...

What is the estimated percentage (in mass) of water in the human body? Is this percentage expected to be larger in the adult or in the old individual? About 65% of the human in

Nursing care plan, Mrs. TT seventy three-year old has a long history of chr...

Mrs. TT seventy three-year old has a long history of chronic obstructive pulmonary disease (COPD). She came to the medical ward as shortness of breath, wheezing and a cough for the

Lipids, LIPIDS Term given by Bloor. Lipids do not form polymers ...

LIPIDS Term given by Bloor. Lipids do not form polymers in nature except cutin (polymere of fatty acids). Most lipids are formed of fatty acids & alcohol. Ester bo

Density independent factors, Density Independent Factors Density inde...

Density Independent Factors Density independent factors are the extrinsic factors which tend to regulate the density of a population in ways that are not correlated with its

What is the etiology of cholera, Q. What is the etiology of cholera? T...

Q. What is the etiology of cholera? The most common cause of cholera is consumption of food or drinking water that has been contaminated with the bacteria. It is important to

Define a tumbler garden, A tumbler garden Grow several kinds of seeds i...

A tumbler garden Grow several kinds of seeds in 'tumbler gardens'. Every pupil might grow a tumbler garden of his own and keep a day by day pictorial record of the progress of

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