What Does Patent Lumen Mean?

How fast does an ascending aortic aneurysm grow?

The annual growth varies from 0.08 cm for small aneurysm (4.0 cm) to 0.16 cm for large aneurysm (8 cm) [24].

The rate of growth is also affected by the location of aneurysm.

Aneurysms arising from ascending aorta grow slower (0.07 cm/yr) than the one from descending thoracic (0.19 cm/yr)..

What is a true lumen?

A dissection occurs when a tear of the intima (the inner lining) allows blood to leak into the media (middle layer). This creates two passages for blood: a true lumen, which is the normal passageway of blood, and a false lumen, the newly created passageway.

What does patent mean?

A patent is an exclusive right granted for an invention. … In other words, patent protection means that the invention cannot be commercially made, used, distributed, imported, or sold by others without the patent owner’s consent.

What is patent explain with example?

What is a Patent? Patents are a right granted to an inventor that allows them to exclude all others from making, using, or selling their invention for 20 years. In the U.S. the U.S. Patent and Trademark Office reviews and approves patent applications, which provide protection against others stealing their idea.

Where is the lumen of the aorta found?

At the root of the ascending aorta, the lumen has three small pockets between the cusps of the aortic valve and the wall of the aorta, which are called the aortic sinuses or the sinuses of Valsalva.

What is the diameter of the aorta?

The normal diameter of the ascending aorta has been defined as <2.1 cm/m2 and of the descending aorta as <1.6 cm/m2. The normal diameter of the abdominal aorta is regarded to be less than 3.0 cm. The normal range has to be corrected for age and sex, as well as daily workload.

What are the 3 types of patents?

There are three types of patents: utility patents, design patents, and plant patents.

How much does a patent cost?

The filing fee is $130 for a small entity and drawings typically cost $100 to $125 per page, so a high quality provisional patent application for a mechanical or electrical device can typically be prepared and filed for $2,500 to $3,000.

What is patent in simple words?

A patent is a form of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of years in exchange for publishing an enabling public disclosure of the invention.

At what size does an aortic aneurysm need surgery?

The larger an aneurysm is, the greater the chances are that it will rupture. It is estimated that an abdominal aortic aneurysm that is over 5.5 cm in diameter will rupture within one year in about 3 to 6 out of 100 men. That’s why surgery is often recommended.

How big is a 4 cm aneurysm?

If the aorta is between three and four centimeters (cm) in diameter, the patient should return to the doctor every year for an ultrasound to see if the aneurysm has grown. If the aorta is between four and 4.5 cm, testing should be repeated every six months.