Lip Anesthesia via Segmented Vermillion Border Injections
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Solution Overview
Problem
Current methods for anesthetizing the lips prior to cosmetic procedures, such as lip augmentation, are inadequate due to the need for large volumes of anesthetic, which can cause discomfort, distortion of the lip anatomy, and prolonged numbness affecting surrounding facial areas.
Innovation Solution
Administering a method involving 4-8 injections of an anesthetic solution, specifically 0.05 to 0.1 mL each, around the vermillion border of the upper and lower lips, with precise spacing and proximity to minimize discomfort and avoid numbing of surrounding areas, using a combination of lidocaine HCL 2% and epinephrine 1:100,000 with 8.4% sodium bicarbonate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large volumes of anesthetic are administered via dental blocks or nerve blocks, then complete numbness of the lips is achieved, but the anatomy of the lips is distorted and motor function is affected
Solution Approach 1:
The anesthetic is divided into multiple small injection sites (4-8 injections) distributed around the vermillion border of the lips, rather than administering a large volume through a single dental or nerve block. This segmentation allows effective anesthesia of the lip tissue while avoiding distortion of lip anatomy and preservation of motor function.
2Reliability
If large volumes of anesthetic are administered, then complete numbness of the lips is achieved, but numbness of surrounding facial areas occurs
Solution Approach 1:
The anesthetic injections are precisely localized to the vermillion border and surrounding lip tissue, creating a concentrated effect where needed. By targeting specific local areas rather than administering large volumes systemically or through broad nerve blocks, the anesthesia is effective for the lips while minimizing numbness in surrounding facial areas.
3Reliability
If large volumes of anesthetic are administered, then complete numbness of the lips is achieved, but recovery time is prolonged
Solution Approach 1:
Instead of administering excessive volumes of anesthetic that would prolong recovery, the method uses multiple partial injections (4-8 injections of small volumes) that collectively achieve complete numbness of the lips. This partial action approach provides sufficient anesthesia for the procedure while allowing faster recovery compared to large-volume single injections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides effective numbing of the lips with minimal pain and swelling, avoiding distortion and quick recovery from numbness, while minimizing numbness in other facial areas, thus enhancing the lip filler procedure experience.
Implementation Method 1
Local injection of anesthesia in the area of the lips can also be used to effect numbness of the lips
Implementation Method 2
Commonly used anesthetics are lidocaine, bupivacaine, and mepivacaine, which can be administered with or without epinephrine. Epinephrine is a vasoconstrictor.
Data Source
AI summary
The invention relates to a method for anesthetizing a patient's lips prior to a cosmetic procedure, such as lip augmentation or enhancement.