Needleless Injection Site - Principle And Type Of Needle-Free Injection, Limitations
Needle-free injection is the use of a high-pressure jet principle to allow liquid or powdered drugs to enter the body tissue by spraying without the aid of a needle during drug injection. The needle-free injection produces a very high jet flow of 150 to 300 m/s. The depth of the piercing body is limited, and the nerve endings are slightly irritated, so there is no obvious tingling sensation...
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