Bronchial Balloon Catheter Layout for Immediate Hemostasis

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Solution Overview

Problem

Existing bronchoscopy procedures face challenges in achieving immediate and precise hemostasis during massive bleeding, as current balloon catheters either obstruct the endoscope's view or require prolonged insertion, and cannot maintain position during peripheral lung bleeding, complicating procedures and patient comfort.

Innovation Solution

A bronchial hemostatic balloon catheter with a securing balloon at the distal end and one or more hemostatic balloons at a predetermined distance, allowing independent securing and inflation to block the bronchus, enabling immediate hemostasis without obstructing the bronchoscope.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hemostatic balloon catheter is inserted through the working channel of the bronchoscope to achieve hemostasis, then hemostasis can be achieved by blocking the bronchus, but the bronchoscope becomes immobilized and cannot be used for other procedures until hemostasis is completed

Engineering Contradiction:

Improvehemostasis achievementVSAvoidbronchoscope usability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The catheter is divided into two independent parts: a securing portion with a securing balloon that can be positioned and secured independently, and a hemostatic portion with a hemostatic balloon that can be inflated separately to achieve hemostasis. This segmentation allows the securing portion to remain in place while the bronchoscope can be withdrawn or repositioned, maintaining versatility during hemostasis procedures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The securing balloon acts as an intermediary element that anchors the catheter in the bronchus without requiring the bronchoscope to remain inserted. The securing balloon can be inflated to hold the catheter in position, allowing hemostasis to be achieved while the bronchoscope is no longer needed in the patient's airway.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the bronchoscope remains inserted in the patient during hemostasis procedures, then hemostasis can be maintained, but the patient experiences discomfort and increased risk

Engineering Contradiction:

Improvehemostasis maintenanceVSAvoidpatient discomfort and risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The catheter's securing portion can be independently positioned and secured in the bronchus using the securing balloon, allowing the hemostatic portion to function while the bronchoscope is removed. This separates the hemostasis function from the bronchoscope insertion, eliminating the need for prolonged bronchoscope presence and reducing patient discomfort and risk.

Inventive Principle:

Principle #1Segmentation

3Reliability

If a single balloon is provided at the distal side of the catheter to compress the bleeding site, then hemostasis can be achieved by direct compression, but the device cannot be used for peripheral lung bleeding and cannot be combined with bronchoscope

Engineering Contradiction:

Improvehemostasis by direct compressionVSAvoidapplication range

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The catheter is segmented into a securing portion with a securing balloon for positioning and a hemostatic portion with a hemostatic balloon for achieving hemostasis. This segmentation enables the device to be used with bronchoscope for peripheral lung bleeding while maintaining the capability for effective hemostasis through balloon inflation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The catheter is designed with dual balloon components that provide multiple functions: the securing balloon for positioning and anchoring, and the hemostatic balloon for achieving hemostasis. This multi-functionality allows the device to be used both with and without bronchoscope, and for various bleeding locations including peripheral lung bleeding.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 and precise hemostasis at the bleeding site while allowing continued bronchoscope use for other treatments, reducing patient discomfort and medical burden by maintaining catheter position independently of the bronchoscope.

Implementation Method 1

a securing balloon (10) is provided at a distal end to be inserted into a body, and one or more hemostatic balloons (20) are provided at a predetermined distance from the securing balloon (10)

Methodology Applied

Scientific EffectBalloon inflation:

Implementation Method 2

upon the occurrence of bleeding, the hemostatic balloon (20) is inflated to block the bronchus having the lesion

Methodology Applied

Scientific EffectBalloon inflation:

Data Source

PatentEP4706555A1Balloon catheter for bronchial hemostasis

Publication Date: 2026.03.11 CHUNGNAM NAT UNIV HOSPITAL

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AI summary

The present invention relates to a hemostatic balloon catheter for bronchoscopy that is prophylactically and stably secured in a bronchus to prepare for the possibility of massive bleeding during a bronchoscopic procedure, and is capable of achieving immediate hemostasis at a precise location upon the occurrence of bleeding, more specifically relates to a bronchial hemostatic balloon catheter, characterized in that a securing balloon is provided at a distal end to be inserted into the body, and one or more hemostatic balloons are provided at a predetermined distance from the securing balloon.