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Patent With Hepatopetal Flow In Contra Costa
State:
Multi-State
County:
Contra Costa
Control #:
US-000281
Format:
Word;
Rich Text
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FAQ
A normal portal venous flow is hepatopetal. A flow reversal (or a hepatofugal flow) is seen in the case of portal hypertension (Fig. 6).
Patent track sign is a finding on color Doppler ultrasound, representing blood traveling along the course a biopsy needle track. It can occur after a biopsy of any organ, but is more often seen after liver or kidney biopsies.
Hepatofugal or non-forward portal flow (NFPF) is an abnormal flow pattern in which the portal venous flow is from the periphery of the liver towards the porta hepatis and backwards along the portal vein. This phenomenon is not uncommon in patients with liver disease 3.
If the vein compresses, this confirms that the vein is open and patent. If the vein does not compress and debris is seen within the vein, this confirms the presence of a blood clot or obstruction of the vein accounting for the patient's symptoms.
Hepatopetal denotes flow of blood towards the liver, which is the normal direction of blood flow through the portal vein. The term is typically used when discussing the portal vein or recanalized vein of the ligamentum teres in patients with suspected portal hypertension. It is the opposite of hepatofugal.
The five primary requirements for patentability are: (1) patentable subject matter; (2) utility; (3) novelty; (4) non-obviousness; and (5) enablement. Like trademarks, patents are territorial, meaning they are enforceable in a specific geographic area.
A patent application often includes the following primary sections: Invention Title. The title's objective is to provide a clear understanding of the invention or idea. Prior Art: Context and Novelty. Invention Summary. Drawings and Descriptions. Detailed Description. Claims. Scope. Characteristics.
No, the use of an attorney or registered agent is not required for filing a patent application. However, an attorney or registered agent is often a useful resource and the USPTO recommends the use of such for preparing a patent application and conducting the proceedings in the USPTO.
Format of a Patent Application The Specification. The Title. The Description. The Claims. The Drawings. The Abstract. Sample Specifications. Minimum Requirements for a Filing Date.
Format of a Patent Application The Specification. The Title. The Description. The Claims. The Drawings. The Abstract. Sample Specifications. Minimum Requirements for a Filing Date.
