Implantable Monitor Introducer with Ejection Rod and Stop Mechanism
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Solution Overview
Problem
The positioning of implantable medical devices under the skin is challenging due to high insertion forces required, which can lead to improper placement and poor performance of the devices.
Innovation Solution
An introducer apparatus with a housing and ejection rod system that positions the implantable medical device adjacent to a distal opening and releases it with a force, utilizing a stop mechanism to maintain the device in place until ejection, facilitating minimally invasive implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If high insertion forces are applied to manipulate the medical device and form a pocket under the patient's skin, then the device can be implanted subcutaneously, but improper positioning of the device may result in poor performance
Solution Approach 1:
The introducer apparatus pre-positions the implantable medical device within its housing at a specific location adjacent to the distal opening before ejection. This preliminary positioning ensures that when the device is ejected into the subcutaneous pocket, it is already correctly oriented and positioned, eliminating the need for high insertion forces during actual implantation and preventing improper placement.
Solution Approach 2:
The introducer apparatus acts as an intermediary device that holds and positions the implantable medical device during the implantation process. The housing with its stop mechanism serves as a mediator to maintain precise device positioning without requiring high forces from the surgeon, thereby resolving the contradiction between insertion force and positioning precision.
2Ease of operation
If the implantable medical device is manually positioned under the patient's skin, then the device can be implanted, but the process requires high insertion forces and minimal intervention
Solution Approach 1:
The implantable medical device is extracted from the introducer housing and ejected into the subcutaneous pocket using a controlled ejection mechanism. This extraction process allows the device to be delivered with minimal manual manipulation and low insertion forces, significantly improving ease of operation while reducing the force required compared to traditional manual implantation methods.
3Productivity
If the device is ejected from the housing with force, then the implantable medical device can be deployed into the pocket, but the positioning must be precise to avoid improper placement
Solution Approach 1:
The stop mechanism within the housing pre-positions the implantable medical device adjacent to the distal opening before ejection. This preliminary action ensures that when the device is ejected with force for efficient implantation, it maintains precise positioning and is deposited exactly where intended in the subcutaneous pocket, resolving the contradiction between implantation efficiency and placement precision.
Data Source
AI summary
Various aspects of the present disclosure are directed toward introducer apparatuses, systems, and methods for positioning an implantable medical device within a patient. The introducer may include a housing having a proximal opening and a distal opening and configured to position the implantable medical device adjacent the distal opening prior to ejection and an ejection rod configured to pass through the proximal opening and eject the implantable medical device from the housing through the distal opening of the housing.