Motor Housing Feed-Through Module for Compact Heart Support Systems
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Solution Overview
Problem
Existing heart support systems, particularly compactly constructed ones for minimally invasive implantation, lack integrated electronic components and efficient electrical connections for motors and sensors due to space constraints.
Innovation Solution
A motor housing module that seals the motor compartment fluid-tightly and establishes electrical connections through a feed-through portion, feed-through line, and contact pins, allowing integration of sensors and motors in a compact design suitable for minimally invasive implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If heart support systems are constructed compactly for minimally invasive implantation, then the implantation invasiveness is reduced, but the ability to integrate electronic components and establish electrical connections is lost
Solution Approach 1:
The housing is divided into a motor housing and a sensor housing that can be separately manufactured and then connected together. This segmentation allows each component to be optimized independently - the motor housing can accommodate motor components and feed-through connections, while the sensor housing can integrate sensor elements and signal processing electronics, thereby enabling electronic component integration in a compact overall structure suitable for minimally invasive implantation
Solution Approach 2:
The sensor housing is designed to be connected to and integrated with the motor housing, creating a nested or coupled structure. The sensor housing can contain sensor elements that are positioned within or adjacent to the motor assembly, allowing multiple functional components to occupy overlapping or adjacent spatial volumes. This nesting approach maximizes the utilization of available space within the compact heart support system, enabling both motor and sensor functionalities to coexist in a space-constrained implantable device
2Volume of stationary object
If electronic components are integrated into compact heart support systems, then the system compactness is improved, but the complexity of establishing fluid-tight and electrical connections increases
Solution Approach 1:
The feed-through portion serves a dual function by simultaneously providing both fluid-tight sealing and electrical connection pathways. The feed-through line is embedded within the feed-through portion in a manner that combines the sealing function (preventing fluid leakage around the electrical conductor) and the electrical conduction function (allowing power and signal transmission). This merging of sealing and electrical connection functions into a single integrated component reduces the number of separate connection elements required, thereby simplifying the overall connection architecture despite the compact size constraints
Solution Approach 2:
The contact pin is designed as a multi-functional element that provides both mechanical support/positioning and electrical connection capabilities. The feed-through portion acts as a universal interface that handles both sealing and electrical transmission tasks. This multi-functionality approach allows the compact heart support system to achieve complex connection requirements (both fluid-tight sealing and electrical connectivity) using a reduced number of specialized components, thereby managing connection complexity within the compact form factor
3Reliability
If feed-through lines and contact pins are embedded in the feed-through portion, then electrical connections are established, but the manufacturing precision requirements increase
Solution Approach 1:
The feed-through line and contact pin are pre-positioned and embedded within the feed-through portion during the housing manufacturing process, before final assembly of the heart support system. This preliminary embedding ensures that the electrical connection elements are precisely positioned and secured in their correct locations. By performing the embedding operation as a preliminary manufacturing step rather than a final assembly step, the patent achieves reliable electrical connections while managing manufacturing precision requirements through dedicated manufacturing processes for the housing components
Data Source
AI summary
The invention relates to a motor housing module (110) for sealing a motor compartment of a motor of a heart support system. The motor housing module (110) has at least one feed-through portion (205), at least one feed-through line (210), and at least one contact pin (215). The feed-through portion (205) is designed to establish an electrical connection between the heart support system and a connection cable in order to externally contact the heart support system. The at least one feed-through line (210) is embedded in the feed-through portion (205) and extends through the feed-through portion (205). The feed-through line (210) can be connected to the motor and to the connection cable. A first end of the at least one contact pin (215) is embedded in the feed-through portion (205) and a second end of the contact pin (215) projects from the feed-through portion (205) on a side facing away from the motor compartment. The second end of the contact pin (215) can be connected to a sensor line to at least one sensor of the heart support system and to the connection cable.