Light Pulse Tissue Treatment With Vibration Feedback Control

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Solution Overview

Problem

Existing methods for treating biological tissue with pulsed light face challenges in achieving desired vibration states without causing damage, as tissue response varies and is difficult to predict, leading to potential structural or thermal harm.

Innovation Solution

An apparatus that uses a vibration sensor to measure tissue amplitude, forming a relative value based on current and initial amplitude measurements to control a light source, adjusting pulse energy and frequency to maintain a safe and targeted vibration state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If light pulses are strengthened to produce desired vibration effects in less sensitive tissue, then the vibration amplitude increases, but the tissue may become permanently damaged

Engineering Contradiction:
Improvevibration amplitudeVSAvoidtissue damage
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent implements a feedback control system where a sensor detects the actual vibration amplitude of the tissue in real-time, and this information is fed back to the control unit. The control unit compares the detected amplitude with the desired amplitude and adjusts the light pulse parameters accordingly, enabling precise control of vibration amplitude while preventing tissue damage.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent dynamically adjusts the parameters of light pulses (intensity, duration, frequency) based on real-time tissue response measurements. This dynamic adaptation allows the system to optimize vibration amplitude for each specific tissue type and state, maximizing therapeutic effect while minimizing damage risk.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If light pulses are weakened to avoid tissue damage in sensitive tissue, then tissue damage is reduced, but the desired vibration effects are not produced

Engineering Contradiction:
Improvetissue damageVSAvoidvibration amplitude
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The feedback control system continuously monitors tissue vibration amplitude and adjusts light pulse intensity in real-time. This allows the system to use minimal necessary light intensity to achieve the desired therapeutic effect, avoiding both under-treatment and over-treatment scenarios.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent changes multiple parameters of the light pulses (intensity, pulse duration, repetition frequency) in combination to achieve the desired vibration amplitude. By adjusting multiple parameters simultaneously, the system can fine-tune the energy delivery to match the specific sensitivity characteristics of different tissues.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If light pulse intensity is increased to treat less sensitive tissue effectively, then therapeutic effect is improved, but the risk of mechanical and thermal damage increases

Engineering Contradiction:
Improvetherapeutic effectVSAvoidmechanical and thermal damage
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The real-time feedback from vibration sensors allows the system to monitor tissue response and prevent excessive energy accumulation. The control unit uses this feedback to maintain light pulse intensity within safe limits while ensuring sufficient therapeutic effect is achieved.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent uses continuous or repeated light pulses with optimized parameters to achieve cumulative therapeutic effect without exceeding safety thresholds. By maintaining continuous monitoring and adjustment, the system ensures that the therapeutic action remains effective throughout the treatment duration without causing damage.

Inventive Principle:
Principle #20Continuity of useful action

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

Ensures controlled tissue vibration without structural or thermal damage by dynamically adjusting light pulses based on actual tissue response, using a closed control loop to maintain predefined vibration parameters.

Implementation Method 1

The light pulses trigger a thermoplastic expansion and subsequent contraction and are therefore able to be used to excite the vibration

Methodology Applied
Scientific EffectThermoplastic expansion: Thermal Expansion

Implementation Method 2

a vibration sensor, which measures the amplitude of a vibration of the tissue triggered by the light source

Methodology Applied
Scientific EffectVibration measurement: Vibration

Data Source

PatentUS12564729B2Device for treating biological tissue
Publication Date: 2026.03.03 MEDIZINISCHES LASERZENTRUM LUEBECK GMBH
  • US12564729B2 patent drawing
  • US12564729B2 patent drawing
  • US12564729B2 patent drawing

AI summary

The invention relates to a device for treating biological tissue (19), comprising a light source (14) for sending a plurality of light pulses (15) to the tissue (19) within a treatment time period (31) in order to cause the tissue (19) to vibrate. The device comprises a vibration sensor (21), which senses the amplitude of a vibration (22) of the tissue (19) brought about by the light source (14). A control unit (16) calculates a relative value (30) by putting a current measurement value (27) of the amplitude in a ratio with an initial measurement value (26) of the amplitude. The control unit (16) processes the relative value (30) in order to generate a control signal for the light source (14).