High-frequency electrode tip for endoscopic spinal surgery

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current minimally invasive spinal surgery techniques, such as single-port endoscopic surgery, are limited in their ability to treat conditions like foraminotomy and spinal canal stenosis, as they struggle to maintain an accurate visual field due to interference from soft tissues or ligaments and cannot effectively manage bleeding.

Innovation Solution

A high-frequency treatment device for endoscopic spinal surgery, featuring a casing, insert rod with an electrode tip, and a discharge tube, which applies heat to remove interfering tissues, stops bleeding, and discharges contaminants using high-frequency energy and saline solution, while preventing tissue adherence with protrusions and shielding normal tissues from thermal damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If minimally invasive surgery is used to reduce pain and recovery time, then patient comfort and recovery are improved, but the ability to maintain an accurate visual field and effectively treat various spinal conditions deteriorates due to tissue interference and limited treatment range

Engineering Contradiction:
Improvepatient comfort and recoveryVSAvoidvisual field accuracy and treatment effectiveness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The surgical system is divided into separate functional modules: an endoscope for visualization, a high-frequency treatment device for tissue removal and hemostasis, and a saline discharge device for flushing contaminants. This segmentation allows each component to perform its specific function optimally while working together through the same incision, maintaining visual field accuracy without compromising patient comfort

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The surgical system integrates multiple functions into a unified minimally invasive platform: visualization (endoscope), tissue cutting/coagulation (high-frequency electrode), and irrigation/flushing (saline discharge). This multi-functionality allows the system to address various spinal conditions effectively while maintaining the benefits of minimally invasive surgery

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If soft tissues or ligaments are present in the surgical field, then the treatment range is expanded, but the visual field of the endoscope is blocked and treatment accuracy deteriorates

Engineering Contradiction:
Improvetreatment rangeVSAvoidvisual field clarity
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The high-frequency electrode tip is used to pre-treat and remove soft tissues or ligaments that would otherwise block the endoscope's visual field. By performing this tissue removal action before detailed treatment, the surgical team ensures clear visualization while maintaining the ability to treat a wide range of spinal conditions

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The high-frequency electrode acts as an intermediary tool between the endoscope and the target spinal structures. It selectively removes or coagulates interfering soft tissues and ligaments, allowing the endoscope to maintain a clear visual field while the system retains adaptability to treat various spinal pathologies

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If high-frequency heat is applied to remove tissues and stop bleeding, then visual field clarity and treatment effectiveness are improved, but risk of thermal damage to surrounding tissues increases

Engineering Contradiction:
Improvevisual field clarity and treatment effectivenessVSAvoidthermal damage to surrounding tissues
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The high-frequency electrode tip concentrates thermal energy precisely at its tip where it contacts the target tissue. This localized heating allows effective tissue removal and hemostasis while minimizing thermal spread to surrounding healthy tissues, maintaining treatment effectiveness without excessive thermal damage

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The high-frequency electrode rapidly coagulates blood vessels and severs tissues in brief, controlled contacts. By rushing through the tissue removal and hemostasis process quickly with precise, targeted applications, the system achieves clear visual field and effective treatment while limiting the duration of thermal exposure to surrounding tissues

Inventive Principle:
Principle #21Skipping (Rushing through)

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

Enables immediate removal of soft tissues and ligaments interfering with the visual field, quick cessation of bleeding, and effective discharge of contaminants, enhancing the accuracy and effectiveness of endoscopic spinal surgery, including UBE, by providing a clear visual field and minimizing tissue damage.

Implementation Method 1

an electrode tip formed at a front end of the insert rod to apply heat to a treatment part

Methodology Applied
Scientific EffectHigh-frequency heat: Joule Heating

Data Source

PatentUS11278348B2High-frequency treatment device for endoscopic spinal surgery
Publication Date: 2022.03.22 ENDO VISION
  • US11278348B2 patent drawing
  • US11278348B2 patent drawing
  • US11278348B2 patent drawing

AI summary

The present invention relates to a high-frequency treatment device for spinal endoscopic surgery, the device including: a casing; an insert rod extending in a longitudinal direction of the casing; and an electrode tip formed at a front end of the insert rod to apply heat to a treatment part. Accordingly, it is possible to not only immediately remove in-body soft tissues or ligaments that interfere with the visual field of an endoscope in an operation, but quickly stop bleeding, and it is also possible to discharge contaminated substances with a saline solution from a treatment part, thereby allowing an accurate and effective operation.