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

State the definition of soil, State the definition of soil The definiti...

State the definition of soil The definition of soil has changed a great deal from a thin "outer layer of  Earth's crust" to "a collection of natural bodies on the surface of th

What are the signs used in acute pericarditis, Q. What are the Signs used i...

Q. What are the Signs used in acute pericarditis? • Pericardial friction rub is pathognomonic of pericarditis. It is heard as a phasic scatching sound. It may vary with phases

Determine major aspects of the mechanism of freeze drying, Determine Major ...

Determine Major Aspects of the Mechanism of Freeze Drying? The major aspects of the mechanism of freeze drying are:  (a) The removal of vapour from the subliming ice front w

Explain prophylaxis - sexually transmitted infections, Prophylaxis Many...

Prophylaxis Many experts recommend that sexually assaulted adults and adolescents be given treatment to prevent sexually transmitted infections, including therapy for gonorrhea

State the amount of intracellular chloride, A complete motor neuron is remo...

A complete motor neuron is removed from a frog and placed in a large volume of normal physiological saline.  The neuron is healthy; it has a stable resting voltage of -70 mill

What is..., What is antistaphylococcal prophylaxis and pseudomonas aerugino...

What is antistaphylococcal prophylaxis and pseudomonas aeruginosa? I''m doing a project on cystic fibrosis, and I''m curious what these terms have to do with the disease. Thanks!

Which of these do not lay an amniotic egg, Which of the following does not ...

Which of the following does not (or did) not lay an amniotic egg? A) Birds B) Monotreme Mammals C) Dinosaurs D) Frogs E) Snakes

Nervous system and types of reproduction, Q Annelid Identity card. How are ...

Q Annelid Identity card. How are they characterized according to examples of representing beings, type of symmetry, basic morphology, germ layers and coelom, respiratory system, di

Differences between mitosis and meiosis, DIFFERENCES BETWEEN MITOSIS AND...

DIFFERENCES BETWEEN MITOSIS AND MEIOSIS    EVENTS  MITOSIS  MEIOSIS  Occurrence  In all the body cells including

Determine the concept of numeric pyramid, In a numeric pyramid to which tro...

In a numeric pyramid to which trophic level does the base always refer? What about the top level? In a numeric pyramid the base corresponds to the first trophic level, i.e., to

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