Lead Anchor Insertion Tool for Cardiac Pacing

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Solution Overview

Problem

Current medical lead implantation techniques face challenges in securely anchoring leads to patient tissue without causing damage, particularly in the cardiac region, where precise placement and minimization of tissue trauma are crucial for effective cardiac pacing and defibrillation.

Innovation Solution

A lead anchor system comprising a lead anchor, a delivery tube, and a pushing tool, designed to securely fit the lead anchor onto an electrical lead, allowing for precise placement and fixation to patient tissue with minimal trauma, utilizing a body with varying diameters to accommodate different tissue types and configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a lead anchor is stretched over a delivery tube for implantation, then the lead anchor can be securely fitted to the electrical lead, but the tissue trauma may increase due to the stretching process

Engineering Contradiction:

Improvelead anchor fixation securityVSAvoidtissue trauma

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The lead anchor is nested within the delivery tube during implantation, allowing it to be delivered through a small incision without excessive stretching. The delivery tube protects the lead anchor and minimizes tissue disruption while maintaining secure fixation capability.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The delivery tube serves as an intermediary device that facilitates the insertion of the lead anchor into the target site without requiring direct manual manipulation or excessive stretching of the anchor itself, thereby reducing tissue trauma.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the lead anchor delivery system uses a tube with uniform diameter, then the structure is simpler, but it cannot accommodate different tissue types and configurations

Engineering Contradiction:

Improveaccommodation of different tissue typesVSAvoiddelivery tube structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The delivery tube features varying diameters at different sections, with each section optimized for specific functions: a larger distal end for anchor accommodation and a smaller proximal end for precise control and tissue adaptation, allowing the system to handle different tissue types effectively.

Inventive Principle:

Principle #3Local quality

3Force

If the pushing tool body has a large outer diameter to provide sufficient pushing surface, then the pushing force is adequate, but it cannot fit within a small incision

Engineering Contradiction:

Improvepushing forceVSAvoidincision size

Core Design Contradiction:

ForceVSLength of moving object

Solution Approach 1:

The pushing tool is designed with a long, slender body that can be inserted through a small incision and then maneuvered to apply pushing force at the distal end where the lead anchor is located, dynamically adapting the force application point to overcome the size constraint.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20240164810A1Systems and Methods for Lead Anchor Insertion

Publication Date: 2024.05.23 ATACOR MEDICAL INC

AI summary

Disclosed are systems and methods including a lead anchor pushing tool with a body having an outer diameter configured to fit within an incision and abut a biological tissue of a patient, a bore at a distal end of the body having a first diameter configured to receive a lead anchor when stretched over a lead anchor delivery tube and a bore at a proximal end of the body having a second diameter, smaller than the first diameter and configured to receive the lead anchor delivery tube.