Medical Pressure Sensor Base Housing with Exchangeable Catheter
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Solution Overview
Problem
Existing medical pressure sensor devices face challenges in reducing the complexity of electronic components while maintaining the ability to perform remote pressure measurements without compromising the choice of measurement location, and in minimizing signal connection disturbances between the pressure sensor unit and electronic components.
Innovation Solution
The design includes an exchangeable catheter with varying lengths, diameters, strengths, and material combinations, integrated with a base housing that houses the pressure sensor unit and electronic components on a printed circuit board, allowing for a fluid-tight connection and optional telemetry, reducing the need for a storage element and minimizing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressure sensor unit is integrated into the base housing, then the signal connection requirements are reduced and interference is minimized, but the device complexity increases due to mounting all components in one housing
Solution Approach 1:
The pressure sensor unit is integrated into the base housing, merging the sensor, circuit board, and electronic components into a single unified structure. This eliminates separate signal transmission paths between distributed components, reducing interference and simplifying signal connections while maintaining functional modularity through the exchangeable catheter interface.
2Adaptability or versatility
If exchangeable catheters with different specifications are provided, then the adaptability to different measurement requirements is improved, but the device complexity increases
Solution Approach 1:
The base housing is designed with a universal connection interface that can accommodate multiple catheter variants with different lengths, diameters, strengths, and passage arrangements. This universal interface allows a single base unit to serve multiple measurement requirements by simply exchanging the catheter, rather than requiring different base units for each application.
Solution Approach 2:
The measurement device is segmented into two independent functional modules: a reusable base housing containing the electronics and sensor, and exchangeable catheters with varying specifications. This segmentation allows the catheter to be optimized for specific measurement needs while the base housing remains constant, reducing overall system complexity.
3Ease of manufacture
If a storage element is integrated into the pressure sensor unit, then the manufacturing effort is reduced, but the device complexity increases
Solution Approach 1:
The storage element is integrated directly into the pressure sensor unit, merging data storage functionality with the sensor assembly. This eliminates the need for separate storage components and their associated connection interfaces, simplifying the overall device architecture while enabling complete pressure data logging capabilities within the sensor module.
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
This configuration enables robust, efficient, and adaptable pressure measurement capabilities for both physiological and pathological intracranial pressures, with reduced component demands and manufacturing costs, while ensuring reliable data transmission and protection of the pressure-sensitive surface from bodily fluids.
Implementation Method 1
a pressure sensor unit (6) having a pressure-sensitive surface (13) in the form of a membrane (13)
Implementation Method 2
The non-organic coating can be applied using a semiconductor technology process and can, for example, also be sputtered
Data Source
Figure 1
Figure 2
Figure 3~6
AI summary
The device (1) has a base housing (2) that contains multiple electronic devices (10) for controlling and reading out a pressure sensor unit (6) arranged in the base housing. A catheter (3) is connected to the base housing, and is formed of a catheter through-hole (17). The catheter through-hole is in fluid connection (16) with the pressure sensor unit, to specify a remote pressure measurement location of the pressure sensor unit in the base housing. An independent claim is included for a pressure sensor kit.