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

What is the difference between rna and dna, Q. Concerning the nitrogen- con...

Q. Concerning the nitrogen- containing bases that participate in nucleotides, what is the difference between RNA and DNA? In DNA nucleotides can be formed of thymine (T), adeni

To which direction does the growth of one side of a stem, To which directio...

To which direction does the growth of one side of a stem, branch or root induce the structure to curve? While one side of a stem, branch or root grows more than the other side

Gene therapy, In experimental studies, gene therapy has been shown to impro...

In experimental studies, gene therapy has been shown to improve failing human myocardial function. The abnormal function of  myocytes obtained from patients with dilated cardiomyop

Explain sialography, Question 1 Explain Sialography? How will you perfo...

Question 1 Explain Sialography? How will you perform the same? Question 2 How will you set up your radiology department to take up the IVU studies? Question 3 D

How is reproduction done in beings of the class reptilia, How is reproducti...

How is reproduction done in beings of the class Reptilia? These beings reproduce sexually by internal fecundation by means of copulation among male and female individuals. They

Describe the use of sorbates acid in microorganisms, Q. Describe the use of...

Q. Describe the use of Sorbates acid in Microorganisms? Sorbic acid is an unsaturated carboxylic acid whose salts as sodium, calcium or potassium are used in foods upto

What is the physiological explanation for archaic method, In ancient Greece...

In ancient Greece the father of Medicine, Hypocrates, described a method of diagnosing diabetes mellitus by tasting the patient's urine. What is the physiological explanation for t

Homoeostasis, what stimulate the system in homoeostasis

what stimulate the system in homoeostasis

Define nucleosomes , The initial stage of packaging have the binding of t...

The initial stage of packaging have the binding of the chromosomal DNA to histones.  Whole, in chromosomes the ratio of the DNA to histones on a weight basis is around 1:1. There a

Brasseler endo extractor tube-endodontics principles, Brasseler Endo Extrac...

Brasseler Endo Extractor tube Insert H file buccally and lingually and remove silver by friction.If I can't remove use solvent to desolve cement If the tip of silver not appear

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