Removable Battery Module in Finger Pulse Oximeter
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Solution Overview
Problem
Current finger type pulse and blood oxygen measuring devices face challenges in assembly and disassembly of batteries, manufacturing complexity due to glue encapsulation, and inconvenient battery installation, which affects durability and consistency.
Innovation Solution
A finger type pulse and blood oxygen measuring device with a removable power supply module and integrated silica gel soft finger pad with optical windows, simplifying assembly and enhancing durability by using a moulded transparent silica gel optical window and soft finger pad, and a battery installation groove lid with T-type flanging boss for easy battery replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glue poured way is used to encapsulate the chamber where locates the lamp-housing and photoelectric sensor in the silica gel finger pad, then the device is sealed and protected, but the manufacturing complexity increases and consistency deteriorates
Solution Approach 1:
The patent merges the lamp-housing chamber and photoelectric sensor chamber into a single integrated cavity within the silica gel finger pad. This eliminates the need for separate glue encapsulation processes for multiple chambers, simplifying manufacturing while maintaining the sealing protection that the unified cavity structure provides.
2Volume of moving object
If battery is installed into the battery compartment which is in the inner side of the finger type pulse and blood oxygen measuring device, then the device structure is compact, but battery installation becomes inconvenient and anti-damage capability weakens
Solution Approach 1:
The patent segments the battery compartment from the main device body by providing a removable battery cover. This allows the battery to be easily accessed and replaced by users without disassembling the entire device, maintaining compactness while significantly improving battery installation convenience and accessibility.
3Stability of the object's composition
If battery compartment structure is used with internal battery installation, then the device structure is integrated, but anti-damage capability and ease of maintenance deteriorate
Solution Approach 1:
The patent divides the device into separable modules including a removable battery cover and detachable finger pad. This modular segmentation allows damaged components to be easily replaced without affecting the entire device, improving anti-damage capability and ease of maintenance while preserving overall structural integration through standardized connection interfaces.
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 facilitates easier battery replacement, reduces manufacturing complexity, enhances product consistency, and improves user comfort by simplifying the installation structure and increasing the device's durability.
Implementation Method 1
the light emitting diode (LED) is fixed in the silica gel transparent optical window
Implementation Method 2
the bottom of the control circuit board installs with optoelectronic sensors
Data Source
AI summary
The invention discloses a finger type pulse and blood oxygen measuring device, including an upper shell suite and a lower shell suite that are installed with silica gel soft finger pad, and a semi-closed holding. A removable power supply module is installed in the lower shell suite. The beneficial effect of the invention is that because of the adoption of the removable type power supply module which is able to load the battery, it is easier to assemble and disassemble the battery. Additionally, the structure of the device facilitates manufacturing, enhances quality, and also increases the comfort of a person using the device.


