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

Types of radiography, Types of Radiography: Positron Emission Tomogra...

Types of Radiography: Positron Emission Tomography  (PET) Uses high-energy physics and computer techniques to  study  lung function; useful for quantitative measurement

Poultry and duck diseases-fowl pox, Fowl pox Fowl-pox is a highly infec...

Fowl pox Fowl-pox is a highly infectious disease of poultry, especially chickens and turkeys. Pheasants, ducks, geese and guineafowls also suffer from an infection similar to f

What are the main structures of the human eye, What are the main structures...

What are the main structures of the human eye? The major structures of the human eye are the cornea, the iris, the pupil, the ciliary muscles, the crystalline lens and the ret

Assessment of megaloblastic anaemia, Assessment   On observation of a c...

Assessment   On observation of a child with this type of anaemia you will find that in addition to the symptoms  of iron deficiency anaemia there is hyper-pigmentation over knu

Angiographic quantification, Angiographic Quantification Gr 1 - minimal...

Angiographic Quantification Gr 1 - minimal systolic jet, clears rapidly Gr 2 - partial RA opacification Gr 3 - Opacification of whole of RA GR4 - Opacification of

Explain precautions for isolation of pure culture, Explain Precautions for ...

Explain Precautions for Isolation of Pure Culture? 1. Plating of the medium should be done 24 hours before performing the streaking. There should not be any moisture on the

What are the ploidies of the generated cells, In which meiotic division doe...

In which meiotic division does the separation of the homologous occur? What are the ploidies of the generated cells after the end of that process? The separation of the homolog

Carbohydrate required for underweight - nutritional care, Explain the Carbo...

Explain the Carbohydrate required for underweight - Nutritional Care? Liberal amounts of easy to digest carbohydrates should be included in the diet. The intake of dietary fibr

What is st heart rate index, Q. What is ST Heart Rate Index? To calcula...

Q. What is ST Heart Rate Index? To calculate the index, the maximum ST depression is divided by the Delta heart rate (difference between the resting and maximum heart rate). As

Cell get oxaloacetic acid for krebs citric acid cycle, From where does the ...

From where does the cell get oxaloacetic acid for krebs citric acid cycle? Oxaloacetic acid is also formed when pyruvate is acted upon by pyruvate carboxylase in response to an

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