Insertion Drug Injection Device With Depth Control
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Solution Overview
Problem
Existing insertion type drug injection devices are prone to operator skill-dependent depth and pain issues during procedures, particularly in vaginal plastic surgery, leading to discomfort and potential skin damage.
Innovation Solution
A device with a tubular main body, a needle assembly featuring multiple needles and a pneumatic port, and a drug injection pipe, along with a guide and checking means for depth and angle verification, and a genuineness identification unit to ensure safe and accurate drug delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a disposable syringe is used for drug injection, then the operator can perform the injection procedure, but the injection depth and dose are affected by operator skill level
Solution Approach 1:
The injection device is designed to automatically control injection depth through its mechanical structure, eliminating the need for operator skill to achieve precise depth. The device self-regulates the injection parameters through its built-in depth control mechanism
Solution Approach 2:
The device changes the physical parameters of injection by providing fixed depth markings and mechanical stops that constrain the needle insertion depth, transforming the variable operator-controlled parameter into a fixed device-determined parameter
2Ease of operation
If a disposable syringe is used for drug injection, then the operator can inject the drug, but it is difficult to check the injection site
Solution Approach 1:
The device incorporates visual indicators such as colored markings on the syringe barrel and needle guard that change or become visible at specific depths, allowing the operator to easily detect and verify the injection site and depth without additional equipment
3Ease of operation
If the injection needle is exposed, then the operator can move to injection site, but it causes pain by hurting the inner wall of the vagina
Solution Approach 1:
A needle guard or protective sheath acts as an intermediary between the exposed needle and the sensitive tissue, allowing the needle to be transported safely to the injection site while preventing direct contact with and damage to the inner wall of the vagina
4Ease of operation
If manual injection method is used, then the operator can perform the procedure, but the patient feels uncomfortable during the procedure
Solution Approach 1:
The device automatically manages injection parameters such as depth, angle, and drug delivery rate through its mechanical design, reducing the need for manual adjustment and minimizing patient discomfort without requiring operator skill
Data Source
AI summary
The present disclosure relates to an insertion type drug injection device capable of being inserted into a body for injecting a drug into a skin, including: a main body having an open insert part and formed in a tubular shape having a hollow space therein, a needle assembly formed in the insert part, provided with a plurality of needles, and including a pneumatic port and a drug injection port, and a drug injection pipe inserted into the main body and connected to a drug injection port of the needle assembly, and an air flowing pipe connected to the pneumatic port.