Suture Rack Cassette Layout for Minimally Invasive Valve Surgery

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Solution Overview

Problem

Suture management during minimally invasive surgical procedures, particularly aortic valve replacement, is challenging due to the need for efficient organization and untangling of multiple suture ends in confined spaces, requiring improved apparatuses that interact efficiently with modern surgical tools.

Innovation Solution

A rack system for suture management comprising multiple cassette locations with inside and outside suture holders, suture grooves, and stabilizing feet, designed to organize and stabilize sutures during procedures, with features for attachment to surgical equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple suture ends are managed in confined surgical spaces, then suture organization becomes more difficult, but surgical procedure efficiency is reduced due to tangling and management challenges

Engineering Contradiction:
Improvesuture organizationVSAvoidsuture management system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The suture management system divides the management of multiple suture ends into separate modular cassettes, each holding specific suture ends. This segmentation allows organized storage and easy retrieval of individual suture ends without tangling, while the modular nature keeps each unit simple and manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rack system serves as an intermediary device between the surgical field and the sutures. It provides a structured platform with designated holders and guides that mediate the organization and delivery of suture ends to the surgical site, reducing direct handling complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If suture holders and organizing structures are added to manage multiple sutures, then suture tangling is reduced, but the overall device complexity increases

Engineering Contradiction:
Improvesuture stabilityVSAvoidrack structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The rack structure is designed to perform multiple functions: it holds multiple cassettes, provides stabilization feet for positioning, offers connection points for surgical equipment, and incorporates guides for suture delivery. By consolidating these functions into a single integrated structure, the patent reduces the need for multiple separate devices.

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

Solution Approach 2:

The patent combines suture holding cassettes, stabilization mechanisms, and equipment mounting features into a unified rack system. This merging of previously separate components into one integrated structure reduces the overall number of parts while maintaining organizational and stabilizing functions.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If specialized suture management apparatuses are introduced, then suture management efficiency improves, but interaction compatibility with existing surgical tools may be limited

Engineering Contradiction:
Improvesuture management efficiencyVSAvoidequipment compatibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The rack system incorporates multiple connection points designed to interface with various surgical equipment and tools. This universal compatibility allows the specialized suture management apparatus to integrate seamlessly with existing surgical workflows and tools, enhancing rather than limiting adaptability.

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

Data Source

PatentEP3723621B1Apparatus for suture management
Publication Date: 2026.01.07 LSI SOLUTIONS INC
  • EP3723621B1 patent drawingFigure 1A
  • EP3723621B1 patent drawingFigure 1B
  • EP3723621B1 patent drawingFigure 1C

AI summary

A rack and an apparatus for suture management are disclosed. The apparatus for suture management includes one or more racks, each rack including a plurality of cassette locations, each cassette location having an inside suture holder, an outside suture holder, and a cassette receiver. The apparatus for suture management also includes a plurality of suture grooves. The apparatus for suture management further includes a plurality of rack connection points. The apparatus for suture management also includes an attachment feature which may accept another surgical tool or mounting adapter.