Adjustable Length Catheter With Scored Segments

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing catheters are often available in fixed lengths, which can lead to excess material outside the body during use, making them difficult to maneuver and requiring hospitals to stock multiple sizes, increasing costs and logistical challenges.

Innovation Solution

The development of an adjustable length catheter assembly kit that allows medical practitioners to customize the length of the catheter by cutting and flaring the device, using a cutting and flaring tool to sever and create a sealable flare at the proximal end, enabling flexible use and reduced inventory needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If catheters are provided in fixed lengths, then manufacturing and inventory management are simplified, but excess material outside the body results in reduced maneuverability and increased inventory requirements

Engineering Contradiction:
ImprovemaneuverabilityVSAvoidinventory management
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The catheter system transitions from fixed-length static configurations to dynamically adjustable lengths. The catheter is designed with a scored section that allows it to be separated into multiple segments, enabling the practitioner to adjust the catheter length dynamically based on patient-specific requirements and procedural needs, thereby improving maneuverability while maintaining simplified inventory management.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If catheters are made longer to accommodate various procedures, then versatility is improved, but excess material outside the body increases difficulty in manipulation

Engineering Contradiction:
Improveprocedure compatibilityVSAvoidmaneuverability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The catheter is divided into distinct segments including a proximal section, a scored section with multiple score lines, and a distal section. This segmentation allows the catheter to be separated into different length configurations, providing versatility for various procedures while ensuring that the portion outside the body remains manageable and easy to manipulate by reducing excess material.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple catheter sizes are stocked to meet different length requirements, then adaptability is improved, but inventory costs and logistical complexity increase

Engineering Contradiction:
Improvesize availabilityVSAvoidinventory quantity
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

A single catheter design with a scored section serves multiple functions and length requirements. The catheter can be configured into different lengths by separating at different score lines, making one catheter type universal for various procedural needs. This eliminates the need to stock multiple catheter sizes, reducing inventory quantity and logistical complexity while maintaining adaptability.

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

4Ease of operation

If catheters are provided in shorter lengths to improve maneuverability, then ease of operation is improved, but they cannot accommodate procedures requiring longer access

Engineering Contradiction:
ImprovemaneuverabilityVSAvoidprocedure compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The catheter system enables dynamic adjustment of length to match procedural requirements. The scored section allows the catheter to be separated into different configurations, transforming a potentially short catheter into a longer effective length when needed, while maintaining the benefit of reduced excess material for improved maneuverability in procedures requiring shorter lengths.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2903678B1Adjustable length catheter
Publication Date: 2020.01.15 MERIT MEDICAL SYSTEMS INC
  • EP2903678B1 patent drawingFigure 1
  • EP2903678B1 patent drawingFigure 2
  • EP2903678B1 patent drawingFigure 3A

AI summary

An adjustable length catheter is disclosed. In some embodiments, the catheter is configured for use with a hub configured to couple to an end of the catheter. A cutting tool and/or a flaring tool may further be provided in connection with the catheter. In some embodiments, these tools are coupled to a hub member. The catheter may be configured such that a user, for example a medical practitioner, may cut the catheter to a desired size as part of a therapy or other procedure.