Implantable Device Adhesive Retention Without Tissue Damage
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Solution Overview
Problem
Existing implantable devices face challenges in securing themselves within the body without causing tissue damage, as mechanical fixation methods increase the risk of tissue damage and undesirable migration.
Innovation Solution
Implantable devices with adhesive properties, such as coatings, self-adhering adhesives, semi-permeable lumens, and adhesion-promoting structural features, are used to secure the devices within the body, reducing the risk of migration and tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical fixation components (hooks, staples, intravascular stents) are employed to secure the implantable device, then the device retention is improved, but the risk of tissue damage increases
Solution Approach 1:
The patent replaces mechanical fixation systems (hooks, staples, stents) with a chemical adhesive system. The adhesive is delivered through a lumen in the implantable device and bonds to tissue surfaces, providing retention without mechanical penetration or compression that causes tissue damage. This substitution eliminates the harmful mechanical interaction while maintaining secure device anchoring.
Solution Approach 2:
The adhesive acts as an intermediary substance between the implantable device and the tissue. Instead of direct mechanical contact that causes damage, the adhesive mediates the connection by bonding to both the device surface and tissue, creating a secure attachment while protecting the tissue from mechanical injury.
2Manufacturing precision
If adhesive is delivered through a lumen or compartment, then the adhesive application precision is improved, but the device complexity increases
Solution Approach 1:
The lumen in the implantable device serves multiple functions: it acts as a delivery conduit for the adhesive, provides structural support for the device, and can be configured to control adhesive flow patterns. This multi-functionality reduces the need for separate adhesive delivery components, thereby limiting the increase in device complexity while maintaining precise adhesive application.
Solution Approach 2:
The adhesive is pre-positioned within the lumen or compartment during device manufacturing, allowing for controlled and precise delivery at the target location. This preliminary placement ensures that the adhesive is ready for immediate application and can be delivered in a controlled manner, improving application precision without requiring complex real-time delivery mechanisms.
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 use of adhesives and structural features enhances the stability and retention of implantable devices within the body, minimizing the risk of migration and allowing for secure placement without damaging surrounding tissue.
Implementation Method 1
implantable devices having adhesive properties... utilize adhesives and/or adhesive properties or adhesive promoting structure to hold or secure the implantable devices in place
Implementation Method 2
a semi-permeable or permeable lumen through which an adhesive is employed
Data Source
AI summary
Implantable devices such as stents, coils, implantable contraceptives, vascular plugs, vena cava filters, left atrial appendage (LAA) closure devices employing an adhesive component to assist in securing or holding the implant in place within a lumen of a patient's body.