Microneedle RF Injection Control for Fewer Skin Penetrations

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Solution Overview

Problem

Existing radiofrequency and injection treatments require repetitive penetration of the skin tissue using different medical devices, leading to a cumbersome process and low treatment efficiency.

Innovation Solution

An electrical treatment device with both hollow and solid needle bodies that can penetrate the skin tissue to deliver electrical energy or inject substances, allowing for simultaneous or sequential radiofrequency treatment and injection based on selected modes, reducing the need for multiple penetrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate radiofrequency microneedles and needle bodies are used to penetrate skin tissue for treatment, then both radiofrequency treatment and injection treatment can be performed, but the treatment process becomes cumbersome and treatment efficiency decreases

Engineering Contradiction:

Improvetreatment function integrationVSAvoidtreatment efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent combines radiofrequency treatment and injection treatment into a single device with a unified needle body structure that can perform both functions. The needle body integrates both the radiofrequency electrode and injection lumen, allowing simultaneous or sequential delivery of electrical energy and injectable substances through a single penetration, thereby improving treatment efficiency while maintaining versatility.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The needle body is designed as a universal component that can perform multiple functions: delivering radiofrequency energy for tissue heating and collagen stimulation, injecting substances for cosmetic treatment, and potentially combining both in a single procedure. This multi-functional design eliminates the need for separate devices and reduces the number of skin penetrations required.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple medical devices are used to penetrate skin tissue repetitively, then comprehensive treatment can be achieved, but the treatment process becomes cumbersome

Engineering Contradiction:

Improvetreatment capabilityVSAvoidtreatment process simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the operations of separate radiofrequency treatment and injection treatment into a single integrated procedure. The unified needle body allows clinicians to perform both radiofrequency energy delivery and substance injection through one skin penetration, significantly simplifying the treatment process and improving ease of operation while maintaining comprehensive treatment capability.

Inventive Principle:

Principle #5Merging (Combining)

3Quantity of substance

If radiofrequency microneedles and needle bodies penetrate skin tissue multiple times, then treatment coverage can be achieved, but treatment efficiency becomes low

Engineering Contradiction:

Improvetreatment coverageVSAvoidtreatment efficiency

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The patent combines radiofrequency and injection functions into a single needle body that can deliver both treatments through one penetration. This allows comprehensive treatment coverage to be achieved with fewer skin penetrations, thereby improving treatment efficiency while maintaining adequate treatment coverage through the integrated multi-functional needle design.

Inventive Principle:

Principle #5Merging (Combining)

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

Simplifies the treatment process, reduces the number of skin tissue penetrations, and enhances treatment efficiency and user experience by integrating radiofrequency and injection functions into a single device.

Implementation Method 1

The treatment delivers the radio frequency energy directly to dermis via microneedles penetrating the skin tissue to a target depth while generating electrical energy, thereby achieving the effect of stimulating the production of collagen to tighten the skin tissue, and the ablation because of heating the target tissue.

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

driving ends of a plurality of needle bodies to penetrate at least one target depths of a skin tissue by an actuator

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Data Source

PatentUS20250367389A1Method for controlling electrical treatment device with injection function and electrical treatment device

Publication Date: 2025.12.04 SHENZHEN PENINSULA MEDICAL CO LTD

AI summary

Disclosed are a method for controlling an electrical treatment device with injection function and an electrical treatment device. The method includes: driving ends of a plurality of needle bodies to penetrate at least one target depths of a skin tissue by a actuator, and controlling the plurality of the needle bodies to electrically connect to an electric energy output assembly to release an electric energy at least one target depths of the skin tissue, and/or controlling the plurality of the needle bodies to connect to a liquid storage unit to perform drug injection based on at least one target depths of the skin tissue.