Cardiac Electrode Insertion Tool with Modular Engaging Structures

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Solution Overview

Problem

Existing implantable cardiac stimulus and monitoring device systems face challenges in the quick and uncomplicated placement of lead assemblies with electrodes, as existing methods are often complex and time-consuming.

Innovation Solution

The development of insertion tools and lead assemblies with engaging structures such as threads, posts, circular or semi-circular receiving members, and slots, along with methods that utilize these tools to facilitate the secure placement of cardiac device electrodes in subcutaneous tissue without the need for splittable sheaths, allowing for efficient and straightforward implantation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing methods for lead assembly placement are used, then electrodes can be implanted in cardiac tissue, but the procedure is complex and time-consuming

Engineering Contradiction:
Improveplacement speedVSAvoidprocedural complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The lead assembly is divided into separate components: a distal section with electrodes and an engaging structure, and a proximal section with connectors. The engaging structure includes modular elements (posts, slots, or receiving members) that can be selectively engaged with corresponding structures on the insertion tool, allowing for simplified, rapid deployment without complex manipulation of the entire lead assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An insertion tool serves as an intermediary device between the surgeon and the lead assembly. The tool features engaging structures (threads, posts, slots, or circular/semi-circular receiving members) that interface with complementary structures on the lead assembly, enabling precise placement and secure fixation through simple rotational or linear motions rather than complex manual manipulation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If existing lead assembly placement methods are used, then electrodes can be secured in tissue, but the procedure is time-consuming

Engineering Contradiction:
Improvesecure fixationVSAvoidimplantation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The engaging structure on the lead assembly is pre-configured with features (threads, posts, slots, or receiving members) that are designed to mate with corresponding structures on the insertion tool. This preliminary configuration allows the lead to be rapidly secured to the tool during insertion, and then quickly deployed into the tissue with immediate fixation, eliminating time-consuming adjustment steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The engaging structure integrates multiple functions into a single component: it provides mechanical attachment to the insertion tool, guides the lead assembly through the tissue tract, and enables secure fixation in the final position. This merging of functions into one integrated structure simplifies the implantation procedure and reduces the time required for secure electrode placement.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9216284B2Electrode insertion tools, lead assemblies, kits and methods for placement of cardiac device electrodes
Publication Date: 2015.12.22 CAMERON HEALTH INC
  • US9216284B2 patent drawing
  • US9216284B2 patent drawing
  • US9216284B2 patent drawing

AI summary

Insertion tools, lead assemblies, kits, and methods for placement of cardiac device electrodes. In some embodiments, an insertion tool having a proximal end and a distal, dissecting end includes a structure configured to receive or engage a structure on a lead assembly. Some embodiments include a lead assembly having an end including a structure configured for engaging the distal end of an associated insertion tool. Some embodiments include kits or systems including both an insertion tool and a lead assembly, each having a structure for engaging the other. In these embodiments, the engaging structures may take several forms including threads, small posts, circular or semi-circular receiving members, and/or a slot. Some embodiments also include methods for placement of cardiac device electrodes with the assistance of an associated insertion tool, wherein the cardiac device electrodes are associated with a lead assembly having an end configured to engage a distal, dissecting portion of an associated insertion tool.