Syringe Sleeve with Front Face for Chemical Desensitization
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Solution Overview
Problem
Existing devices for reducing needle insertion pain into the skin are cumbersome to assemble, poorly suited for targeted applications, and inadequate in minimizing pain during injections, especially in the buccal cavity.
Innovation Solution
A sleeve device with a rear portion for the syringe and a front portion containing an active substance for chemical desensitization, where the front face is applied to the skin to mechanically and chemically reduce pain, allowing for precise and pain-reduced injections at any body location, including the buccal cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex assembly of elements (ring, tubes, elastic band, plastic cover) is used to hide the needle and facilitate sliding, then the needle concealment and sliding function are achieved, but the device complexity increases and assembly becomes difficult
Solution Approach 1:
The patent combines multiple functions (needle concealment, sliding facilitation, and pain reduction) into a single integrated device structure. The sleeve serves as both the concealing element and the pain-reducing element, eliminating the need for separate rings, tubes, and plastic covers while maintaining all necessary functions.
Solution Approach 2:
The sleeve is designed to perform multiple functions simultaneously: it conceals the needle from view, provides a sliding surface for easy insertion, applies mechanical pressure to reduce pain, and holds the active substance for chemical desensitization. This multi-functionality reduces the overall number of components needed.
2Device complexity
If a simple sleeve with opening is used for needle passage, then the device structure is simplified, but the pain reduction effect during needle insertion is insufficient
Solution Approach 1:
The patent merges mechanical pain reduction (through pressure application) and chemical pain reduction (through active substance application) into a single integrated sleeve structure. This combination maintains structural simplicity while significantly enhancing the pain reduction effect compared to a simple opening sleeve.
Solution Approach 2:
The device applies preliminary action by mechanically pressing the front face against the skin and chemically applying the active substance before needle insertion. This preparatory desensitization of the skin reduces the pain sensation during the actual needle penetration, addressing the insufficiency of simple structural designs.
3Device complexity
If mechanical pressure is applied alone to reduce pain, then the device structure remains simple, but the pain reduction effect is insufficient for targeted zones like the buccal cavity
Solution Approach 1:
The patent combines mechanical pressure application and chemical substance delivery into a single integrated system. The front face applies mechanical pressure while the cavity holds and applies the active substance simultaneously, creating a synergistic effect that significantly reduces pain in sensitive areas like the buccal cavity, far exceeding what mechanical pressure alone can achieve.
Solution Approach 2:
The device employs a composite approach by integrating both mechanical (pressure) and chemical (active substance) pain reduction mechanisms into one system. This composite strategy addresses the limitation of simple mechanical devices by adding a chemical dimension to pain management, particularly effective for sensitive injection sites.
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
The device effectively desensitizes the skin through mechanical pressure and chemical application, significantly reducing the sensation of pain during needle insertion and enabling injections with greater precision and reduced discomfort.
Implementation Method 1
the front face of the end part is intended to be applied with pressure against the skin of a person before insertion of the needle into the skin
Implementation Method 2
the active substance in the cavity of the end part is applied directly onto the skin of the patient to chemically desensitize the skin at the penetration site
Data Source
AI summary
The device allows the pain associated with the insertion of a needle of a syringe into the skin to be reduced. To do this, this device comprises a sleeve, which has a first rear portion to at least partially receive the syringe with the needle and a second front portion fitted with an end part, through which an opening passes for passage of the needle. A front face of the end part is intended to be applied with pressure against the skin of a person before insertion of the needle into the skin. This front face of the end part is arranged to receive an active substance for desensitizing the skin. The active substance can be applied to the skin at the instant the terminal part presses on the penetration site to desensitize the skin.