A device and method for collecting saliva and measuring the amount of saliva

Abstract

The invention relates to a device for collecting saliva and measuring the amount of saliva, which comprises a socketed outer tube (1) and an inner tube (2) and a silicone funnel (3) whose upper part can be folded; wherein the upper part of the silicone funnel (3) is folded Afterwards, it can enter in the inner tube (2), the upper edge of the inner tube (2) is stuck on the upper edge of the outer tube (1), and the bottom of the inner tube (2) has a saliva supply (8 ) pass through and fix the bottom net (7) of the lower conduit of the silica gel funnel (3), and the side wall of the outer tube (1) has a volume scale and is connected to the cover (5) through a flexible connecting band (6). The invention also relates to a method for collecting saliva and measuring the amount of saliva. The saliva collection and saliva volume measurement device of the present invention can reduce the chance of saliva contamination during the saliva collection and saliva volume measurement process, ensure that the saliva samples will not deteriorate during the collection process, and improve the collection quality; directly determine the saliva volume, reduce the operation steps, reduce the experimental error.

Description

technical field [0001] The invention belongs to the technical field of biological experiment devices, in particular to a device for collecting saliva and measuring the amount of saliva. Background technique [0002] The research on saliva secretion is the basic research on salivary gland function, and it is also a multidisciplinary basic research involving oral physiology, biochemistry, microbes and clinics. Saliva collection is divided into whole saliva collection and single gland saliva collection. The commonly used methods of whole saliva collection include drop method, spit method, suction method and cotton swab method. The degree of stimulation, which affects the amount of saliva in the subject, is now discouraged. [0003] The dripping method is usually that the subject holds a test tube with a funnel, and gradually drips saliva into the test tube along the lower lip. At the end, the subject spits all the saliva in the mouth into the test tube; the spit method is that...

AI Technical Summary

Problems solved by technology

Both of these collection methods require the use of a test tube with a funnel, but in the actual test, it was found that due to the high viscosity of the saliva, there was still a lot of saliva attached to the funnel at the end of the test and could not fall into the test tube, especially when it was necessary to divide time (such as every minute) when collecting the saliva of the subject, due to the limited amount of saliva per minute, the residual saliva on the funnel has a great influence on the measurement of the amount of saliva

For example, it was found in the experiment that when the subject spits out 1ml of saliva, hundreds of microliters of saliva will adhere to the inner wall of the funnel due to the excessive viscosity and cannot flow into the test tube.

However, there is often a minimum requirement for the amount of saliva in the test. Therefore, for the loss of up to nearly 50% of the saliva collection process, both the experimenters and the subjects hope to improve

[0004] At present, the purpose of existing saliva collection devices is usually only to collect a certain amount of saliva for testing, or it is a saliva storage device designed for nursing staff, and there is no device that can accurately measure the amount of saliva

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