Removable Valve Assembly for Medical Handpiece Suction Cleaning
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Solution Overview
Problem
Conventional powered medical handpieces face challenges in cleaning and sterilization due to the difficulty in accessing and removing tissue debris from suction passageways, which can lead to contamination during subsequent surgical uses.
Innovation Solution
A removable valve assembly that connects and disconnects suction passageways, allowing for easier access and cleaning by being detachable from the handpiece, enabling thorough removal of tissue debris and facilitating sterilization processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve assembly is permanently installed in the handpiece, then the structural integrity and sealing are improved, but the accessibility for cleaning suction passageways deteriorates
Solution Approach 1:
The valve assembly is divided into separable components: a removable valve body and a handpiece housing. This segmentation allows the valve assembly to be detached for cleaning while maintaining proper sealing when assembled, resolving the contradiction between permanent installation integrity and cleaning accessibility.
Solution Approach 2:
The valve assembly transitions from a static permanent installation to a dynamic removable configuration. The engagement and disengagement mechanisms allow the valve assembly to be securely attached during operation for reliable sealing, then easily removed for cleaning, adapting the system's state based on operational requirements.
2Device complexity
If the suction passageway is enclosed within the handpiece housing, then the structural compactness is improved, but the cleaning accessibility deteriorates
Solution Approach 1:
The suction passageway system is segmented into the handpiece housing and the removable valve assembly. This allows the passageway to be compactly integrated during operation while enabling easy access to the valve assembly for cleaning without requiring disassembly of the entire handpiece housing.
Solution Approach 2:
The valve assembly, which contains critical portions of the suction passageway, is extracted as a removable component from the handpiece housing. This extraction provides direct access to the suction passageway for cleaning while maintaining the compact integrated structure during surgical use.
3Ease of operation
If the valve assembly is made removable, then the cleaning accessibility is improved, but the device complexity increases
Solution Approach 1:
The valve assembly is designed as a modular segmented unit with standardized connection interfaces to the handpiece housing. This segmentation enables easy removal and reattachment while minimizing the increase in overall device complexity through standardized, repeatable connection mechanisms.
Solution Approach 2:
The removable valve assembly design serves multiple functions: it provides cleaning accessibility, maintains sealing integrity when assembled, and can be easily reattached. This multi-functionality justifies the moderate increase in structural complexity by delivering multiple benefits from a single design feature.
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 removable valve assembly enhances the efficiency of cleaning and sterilization by providing direct access to previously inaccessible areas within the handpiece, reducing the risk of contamination and ensuring the handpiece is ready for reuse.
Implementation Method 1
A spring can be used to cause the protrusion to engage with the handpiece.
Data Source
AI summary
A system and method for more efficient cleaning and sterilizing of surgical handpieces by using a removable valve assembly. The valve assembly is removable to provide access to a first suction passageway and a second suction passageway for cleaning purposes. The valve assembly has a protrusion that engages with a handpiece to secure the assembly to the handpiece. The protrusion of the valve assembly may also be retracted into the valve assembly to allow the valve assembly to disengage the handpiece thereby allowing the valve assembly to be removed from the handpiece. The first suction passageway may also be removable.