Integrated Manual and Electronic Sphygmomanometer
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Solution Overview
Problem
Existing noninvasive blood pressure (NIBP) measurement devices are limited by their single-mode operation, large size, high cost, and inability to function without electrical power, making them unsuitable for various clinical and emergency situations where versatility and portability are essential.
Innovation Solution
The statMAP family of devices integrates both mechanical and electronic blood pressure measurement means into a single, compact, handheld unit capable of operating in multiple modes, including fully manual, semi-automatic, and fully automatic modes, with the option to function without electrical power, allowing for simultaneous use of mechanical and electronic displays for enhanced accuracy and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single device integrates both mechanical and electronic blood pressure measurement means, then versatility and measurement reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines mechanical sphygmomanometer components (cuff, bulb, valve, aneroid gauge) with electronic measurement components (pressure transducer, microprocessor, display) into a single integrated device. This merging allows the device to operate in multiple modes (manual auscultatory, manual oscillometric, automatic oscillometric) while providing both mechanical and electronic reading options, thereby improving versatility and measurement reliability without requiring separate devices.
Solution Approach 2:
The integrated device is designed to perform multiple blood pressure measurement functions through a single unit. It can operate as a fully manual auscultatory device, fully manual oscillometric device, or automatic oscillometric device depending on the mode selected. The device also provides both mechanical and electronic display options, making it a universal solution that replaces multiple separate devices while improving adaptability to different clinical scenarios.
2Measurement precision
If electronic components are added to a manual sphygmomanometer, then measurement precision and automation capability are improved, but device cost increases
Solution Approach 1:
The patent merges inexpensive mechanical components with relatively low-cost electronic components to create an integrated device. The mechanical sphygmomanometer parts (cuff, bulb, valve, aneroid gauge) are inexpensive and reliable, while the electronic components (pressure transducer, microprocessor, display) add measurement precision and automation capability. This combination achieves improved measurement precision without requiring expensive components, as the mechanical and electronic systems work complementarily rather than redundantly.
Solution Approach 2:
The patent uses an intermediary approach where the mechanical and electronic systems serve different but complementary functions. The mechanical system provides structural integrity, manual operation capability, and basic pressure measurement, while the electronic system enhances precision through digital sensing and processing. This intermediary integration allows cost-effective manufacturing by avoiding the need for high-precision electronic components alone, while still achieving improved measurement precision through the synergistic combination of both systems.
3Weight of moving object
If the device is designed to be small and handheld, then portability is improved, but the size of mechanical and electronic components must be reduced
Solution Approach 1:
The patent merges the mechanical and electronic components into a single compact housing that can be held in one hand. The mechanical sphygmomanometer components (cuff, bulb, valve, aneroid gauge) are integrated with the electronic components (pressure transducer, microprocessor, display) such that they share common structural elements and mounting spaces. This merging dramatically reduces the overall device size and weight compared to having separate mechanical and electronic devices, while the integration complexity is managed through careful spatial arrangement and shared component design.
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 approach provides a highly reliable, portable, and versatile NIBP measurement solution that can operate in various modes, ensuring accurate blood pressure determination even in challenging environments, such as emergency situations or where electrical power is unavailable, by combining traditional mechanical and advanced electronic measurement technologies.
Implementation Method 1
a mechanical pressure sensing element, cuff pressure display gage
Implementation Method 2
an electronic pressure sensor and display system
Implementation Method 3
the oscillometric method of blood pressure determination which is based on the detection and interpretation by the user or by a microprocessor of Korotkoff Sounds, ultrasonic flow signals, oscillations in cuff pressure
Implementation Method 4
the auscultatory method of blood pressure determination which is based on the detection and interpretation by the user or by a microprocessor of Korotkoff Sounds
Data Source
AI summary
The present invention provides a new multi-mode sphygmomanometer which integrates into one enclosure a full manual sphygmomanometer comprising a mechanical cuff pressure measuring and display system, a manual inflation bulb and deflation valve such elements comprising the manual/mechanical aspect of the integrated device. Within the same physical enclosure and integrated with the manual sphygmomanometer the device also comprises an electronic blood pressure measuring and monitoring device comprising electronic sensing of the pressure, electronic indication of the cuff pressure and oscillation or KS amplitudes and logic implemented in a microprocessor that automatically interprets these signals to determine the BP parameters.