Rotatable Deployment Handle for Controlled Implant Release

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Solution Overview

Problem

Current deployment systems for medical implants require precise and sequential steps for correct deployment, which can be error-prone and involve multiple components that need to be discarded, posing risks during medical procedures.

Innovation Solution

A deployment handle with a rotatable member and trigger wire release mechanisms that allow controlled withdrawal of trigger wires, enabling precise control over the deployment of medical implants by converting rotational movement into translational movement, thereby simplifying the deployment process and eliminating the need for separate removal of trigger wires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional deployment systems use separate trigger wire release mechanisms, then the implant can be deployed, but the procedure becomes error-prone and requires multiple components to be discarded

Engineering Contradiction:
Improvedeployment accuracyVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the trigger wire release mechanism with the deployment handle by integrating a rotatable member that simultaneously controls both the deployment sequence and trigger wire withdrawal. This merging eliminates the need for separate release mechanisms and reduces the number of components that need to be discarded after use.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rotatable member serves multiple functions: it controls the sequential deployment of the implant, manages the withdrawal of trigger wires, and provides a unified interface for the operator. This multi-functionality reduces device complexity while maintaining reliable deployment control.

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

2Manufacturing precision

If multiple components are used for implant deployment, then precise control is achieved, but the procedure becomes more complex and time-consuming

Engineering Contradiction:
Improvedeployment controlVSAvoidprocedure time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The trigger wires are pre-attached to the rotatable member and the implant positioning is pre-configured before the procedure. This preliminary preparation allows the operator to simply rotate the handle during deployment without needing to manually manipulate multiple separate components, reducing procedure time while maintaining precision.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If trigger wires are removed separately after deployment, then the implant is secured, but the risk of errors increases during the procedure

Engineering Contradiction:
Improveimplant securityVSAvoidprocedure risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The trigger wires are pre-attached to the rotatable member before the procedure begins. This preliminary attachment ensures that the trigger wires will be withdrawn in a controlled manner during deployment, eliminating the risk associated with separate post-deployment removal and reducing procedural errors.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The rotatable member provides tactile feedback and visual indicators that guide the operator through the deployment sequence and trigger wire withdrawal. This feedback mechanism ensures that the procedure is completed correctly and reduces the risk of errors by making the process self-evident.

Inventive Principle:
Principle #23Feedback

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

The handle provides controlled and precise deployment of medical implants, reducing the risk of errors and allowing for the simultaneous withdrawal of trigger wires with the deployment device, enhancing safety and efficiency during medical procedures.

Implementation Method 1

converting rotational movement into translational movement

Methodology Applied
Scientific EffectRotational to translational movement conversion: Screw

Data Source

PatentUS11096811B2Deployment handle for an introducer
Publication Date: 2021.08.24 COOK MEDICAL TECHNOLOGIES LLC
  • US11096811B2 patent drawing
  • US11096811B2 patent drawing
  • US11096811B2 patent drawing

AI summary

A handle for an implant deployment device converts rotational movement into longitudinal movement in order to provide controlled release of one or more trigger wires. The handle also allows the trigger wire to be withdrawn into the device so that it does not need to be separately removed. A preferred handle includes a rotatable portion and a slidable portion. Releasable locks ensure that the handle is used to carry out implant deployment steps in a specific order.