Adenosine Receptor Antagonists During Tissue Ablation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Energy-based tissue ablation therapies lead to elevated adenosine concentrations, causing detrimental symptoms such as metastasis, angiogenesis, tumor cell proliferation, vasodilation, cardiac depression, and inhibition of cell-mediated anti-tumor immune responses.

Innovation Solution

Administering adenosine receptor antagonists like 8SPT, MRS1754, MRS1220, MRE3008F20, MRS1523, ATL146e, or their combinations during ablation procedures to block adenosine receptors, thereby preventing or alleviating symptoms associated with elevated adenosine levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If energy-based tissue ablation is performed to eliminate target tissue, then therapeutic effect is improved, but adenosine concentration increases causing harmful effects

Engineering Contradiction:
Improvetherapeutic effectVSAvoidadenosine concentration
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful effect of adenosine accumulation during ablation into a beneficial outcome by administering adenosine receptor antagonists. These antagonists block adenosine receptors, preventing adenosine from exerting its harmful effects while allowing the ablation procedure to proceed effectively. This transforms the problematic adenosine accumulation into a manageable condition through pharmacological intervention.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces adenosine receptor antagonists as intermediary substances that mediate between the ablation process and the body's adenosine system. These antagonists act as blockers that prevent adenosine from binding to its receptors, thereby interrupting the harmful signaling pathway without interfering with the ablation therapy itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If adenosine accumulates during ablation, then tumor cell elimination is enhanced, but metastasis and angiogenesis are promoted

Engineering Contradiction:
Improvetumor cell eliminationVSAvoidmetastasis and angiogenesis
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent applies the blessing in disguise principle by using adenosine receptor antagonists to prevent adenosine from promoting metastasis and angiogenesis. While adenosine accumulation occurs during ablation, the antagonists block its harmful effects, allowing tumor cell elimination to proceed while preventing the development of metastatic disease and abnormal blood vessel formation.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If adenosine levels rise during ablation, then tissue ablation efficacy is improved, but cardiac depression and hypotension occur

Engineering Contradiction:
Improveablation efficacyVSAvoidcardiac depression and hypotension
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces adenosine receptor antagonists as intermediary protective agents that block the harmful cardiac effects of adenosine. These antagonists prevent adenosine from binding to cardiac adenosine receptors, thereby maintaining cardiac function and blood pressure during ablation procedures while allowing the ablation therapy to remain effective.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 administration of adenosine receptor antagonists effectively reduces angiogenesis, tumor cell proliferation, vasodilation, cardiac depression, and low blood pressure, while enhancing cell-mediated anti-tumor immune responses, thereby maximizing the benefits of ablation therapy and minimizing side effects.

Implementation Method 1

the agent binds to one or more adenosine receptors in vivo

Methodology Applied
Scientific EffectReceptor binding: Absorption (physical)

Data Source

PatentUS7767686B2Method of using adenosine receptor blockers during tissue ablation
Publication Date: 2010.08.03 COVIDIEN AG
  • US7767686B2 patent drawing

AI summary

A mammal undergoing an ablation procedure is treated for symptoms associated with adenosine by administering one or more adenosine receptor antagonists to the mammal prior to or during the procedure.