Implantable Device Mounting Frame Rocker Clamping
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Solution Overview
Problem
Existing implantable medical devices, such as cardioverter defibrillators, face challenges in securely fixing electrical components within the device housing to prevent movement and maintain connection integrity, especially during manufacturing and use, as current methods like adhesives can degrade and additional components increase costs.
Innovation Solution
An implantable medical device design featuring a device housing with a mounting frame that includes a clamping structure, such as a rocker, which exerts force to fix electrical components securely within the housing, allowing for easy assembly and eliminating the need for additional manufacturing steps or materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive material is used to fix the component perpendicular to the first plane, then the component can be fixed in all directions, but the manufacturing time is lengthened and the adhesive material may cause corrosion to the printed circuit board
Solution Approach 1:
The patent replaces the chemical bonding mechanism (adhesive) with a mechanical clamping mechanism (rocker). The rocker structure uses elastic deformation and mechanical leverage to apply clamping force to the component, eliminating the need for adhesive materials and their associated curing time. This mechanical substitution resolves the contradiction by providing reliable fixation without the time penalty and corrosion risk of adhesives.
Solution Approach 2:
The patent changes the physical state and properties of the mounting frame material to enable elastic deformation. By selecting a material with appropriate elasticity, the mounting frame can dynamically adjust its shape to clamp the component securely. This parameter change allows the structure to provide continuous mechanical pressure without requiring additional manufacturing steps, thereby reducing manufacturing time while maintaining fixation reliability.
2Reliability
If adhesive material is used to fix the component, then the component can be fixed in all directions, but the adhesive material may cause corrosion to the printed circuit board
Solution Approach 1:
The patent replaces the chemical bonding mechanism (adhesive) with a mechanical clamping mechanism (rocker). The rocker structure uses elastic deformation and mechanical leverage to apply clamping force to the component, eliminating the need for adhesive materials and their associated curing time. This mechanical substitution resolves the contradiction by providing reliable fixation without the time penalty and corrosion risk of adhesives.
3Reliability
If pressing the implantable medical device is used to fix the component, then the component can be fixed, but there is a risk of damaging the components or the case may not close completely
Solution Approach 1:
The patent applies local quality by concentrating the fixation force at specific contact points between the rocker and the component, rather than applying uniform pressure across the entire device. The rocker's geometry is designed to distribute clamping force locally where needed, preventing component damage while ensuring secure fixation. This localized approach resolves the contradiction between reliable fixation and component protection.
Solution Approach 2:
The patent introduces dynamics by making the mounting frame elastic and capable of deformation. The rocker structure can dynamically adjust its clamping force based on the component's position and the closing force applied to the device housing. This dynamic behavior allows the system to accommodate manufacturing tolerances and prevent damage while ensuring complete closure and secure fixation.
4Manufacturing precision
If additional components like plastic film or foam elements are used for fixing, then tolerance compensation is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the tolerance compensation function into the mounting frame structure itself, eliminating the need for separate additional components. The elastic mounting frame with rocker mechanism inherently accommodates manufacturing tolerances through its deformability, while simultaneously providing the fixation function. This merging reduces device complexity and component count while maintaining manufacturing precision.
Solution Approach 2:
The patent applies universality by designing the mounting frame to perform multiple functions: structural support, component fixation, and tolerance compensation. The rocker mechanism simultaneously provides mechanical clamping and adapts to dimensional variations, eliminating the need for specialized additional components. This multi-functional design reduces overall device complexity while achieving the desired manufacturing precision.
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 solution provides a secure and cost-effective fixation of electrical components within the device housing, ensuring reliable operation and reducing the risk of functional failures due to component movement, while simplifying the manufacturing process.
Implementation Method 1
The mounting frame has at least one clamping structure, the at least one clamping structure being designed to exert a force on the electrical component in order to fix the electrical component in the interior of the device housing
Data Source
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AI summary
The invention relates to an implantable medical device (1) with a device housing (10). The device housing (10) comprises a first housing shell (12) and a second housing shell (13), wherein the device housing (10) surrounds an interior space (14). Furthermore, the implantable medical device (1) comprises an electrical component of the device (130, 131) arranged in the interior space (14), and a mounting frame (20) arranged in the interior space (14) and surrounding the electrical component (130, 131). The mounting frame (20) comprises at least one clamping structure (30, 31), wherein the at least one clamping structure (30, 31) is configured to exert a force (102) on the electrical component (130, 131) in order to fix the electrical component (130, 131) in the interior space of the device housing (14).