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

Degradation/destruction, How does degradation/destruction differ on differe...

How does degradation/destruction differ on different vegatation zoner or at different heights?

Unit membrane model, structure explanation of unit membrane model

structure explanation of unit membrane model

Checker board (punnet''s square) method, CHECKER BOARD (PUNNET'S SQUARE) ME...

CHECKER BOARD (PUNNET'S SQUARE) METHOD 1.         If the genotypes of the parents are known, the genotypes of their offspring can be easily predicted with the help of a chart c

What is the virus that causes flu, What is the virus that causes flu? Why d...

What is the virus that causes flu? Why doesn't the body create permanent immunity against that virus? How does the vaccine against flu work? Flu is a disease caused by the inf

Neural impulse is transmitted from one cell to another, What is the structu...

What is the structure through which the neural impulse is transmitted from one cell to another? What are its parts? The structure by which the neural impulse passes from one c

Biothw, Determine sequence weights for the sequences ACTA, ACTT, CGTT, and ...

Determine sequence weights for the sequences ACTA, ACTT, CGTT, and AGAT in problem 1 by using Thompson, Higgins, and Gibson method

Bilateral cleavage, Bilateral Cleavage In some animals (for example tu...

Bilateral Cleavage In some animals (for example tunicates and nematodes, although in different way), the arrangement of 4 blastomeres after second cleavage is almost radially

When to use the term 2'' carbon, When do you use the term 2' carbon and whe...

When do you use the term 2' carbon and when do you use 2 carbons on a molecular structure? I need examples please!

Phase contrast microscopy, Phase Contrast Microscopy Phase contrast micro...

Phase Contrast Microscopy Phase contrast microscope has the resolving power similar to ordinary light microscope. However, it enables us to observe the cellular organelles in liv

Respiration, different types of animals and their respiratory organ

different types of animals and their respiratory organ

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