Bayonet Connector Geometry for Universal Cuff Sealing

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Solution Overview

Problem

There is a need for a reliable and universally compatible means to temporarily connect a cuff used in patient monitoring systems for determining hemodynamic parameters across different locations in a healthcare facility, as existing cuff connection devices are not compatible with various patient monitoring systems.

Innovation Solution

The use of a male bayonet connector with a shaft having a sealing surface and a channel that forms a fluid-tight seal with a female connector, allowing for secure and interchangeable connections between different patient monitoring systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different cuff connection devices are used at different locations, then compatibility with various patient monitoring systems is achieved, but connection reliability and consistency deteriorate

Engineering Contradiction:
Improvecompatibility with various patient monitoring systemsVSAvoidconnection reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies universality by designing a standardized bayonet connector that can be used across multiple locations and with different patient monitoring systems. The connector features a uniform interface design with specific geometric parameters (e.g., 45-degree engagement angle, defined flange dimensions) that enable universal compatibility while maintaining consistent connection reliability throughout the healthcare facility.

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

2Reliability

If a standardized connector design is implemented, then connection consistency and reliability are improved, but adaptability to different monitoring systems deteriorates

Engineering Contradiction:
Improveconnection consistencyVSAvoidcompatibility with different systems
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The standardized bayonet connector achieves both consistency and adaptability through its universal design. The connector's standardized interface (including specific flange angles, sealing surface geometries, and engagement mechanisms) allows it to consistently connect with various patient monitoring systems across different locations, eliminating the need for location-specific custom connectors.

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

3Adaptability or versatility

If complex connector designs are used to achieve universal compatibility, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveuniversal compatibilityVSAvoidconnector design complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent achieves universal compatibility without excessive complexity by using a straightforward bayonet-style connector design. The connector employs simple geometric features (flanges at 45 degrees, defined sealing surfaces, basic engagement grooves) that provide universal adaptability while maintaining manufacturing simplicity and ease of assembly, avoiding overly complex mechanisms.

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

Data Source

PatentUS11793412B2Connector for medical equipment
Publication Date: 2023.10.24 WELCH ALLYN INC
  • US11793412B2 patent drawing
  • US11793412B2 patent drawing
  • US11793412B2 patent drawing

AI summary

A male bayonet connector includes a first shaft having a first distal end portion having a first sealing surface configured to form a substantially fluid-tight seal with a female connector, a first proximal end portion opposite the first distal end portion, a first lumen extending substantially along a first longitudinal axis of the first shaft from the first distal end portion to the first proximal end portion, and a first channel formed on an outer surface of the first shaft between the first sealing surface and the first proximal end portion. The first channel at least partially extends circumferentially around the first longitudinal axis. The first channel is also defined by a first distal wall, a first proximal wall opposite the first distal wall, and a first central region extending from the first distal wall to the first proximal wall. The first distal wall includes a first axial length that is at least one of curved or at an acute angle relative to the first longitudinal axis.