Bone Cement Mixing Device with Detachable Handle
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Solution Overview
Problem
Existing mixing devices for bone cements often result in cement dough with pores and require complex handling processes, posing challenges in achieving a reliable, efficient application of the cement.
Innovation Solution
A mixing device with a detachable handle and guide body that allows for simple mixing and discharge of bone cement components, utilizing a clamping mechanism to securely attach the guide body to the dispensing tube, ensuring the discharge tube is closed during mixing and easily opened post-mixing, preventing cement entry and facilitating quick application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the discharge tube is closed during mixing, then mixing quality improves and pores are eliminated, but device complexity increases due to additional closing mechanisms
Solution Approach 1:
The discharge tube serves dual functions: it acts as both the mixing chamber and the discharge pathway. By integrating these functions into a single component, the patent eliminates the need for separate closing mechanisms while maintaining the ability to seal the mixing area, thereby improving mixing quality without significantly increasing device complexity
Solution Approach 2:
The discharge tube is designed to perform multiple functions: mixing containment, sealing, and material discharge. This multi-functionality allows the same component to address both the need for closed mixing (to eliminate pores) and the need for simple operation, resolving the contradiction between mixing quality and device complexity
2Ease of operation
If a detachable handle with clamping mechanism is used, then ease of operation improves for quick discharge, but device complexity increases due to additional components
Solution Approach 1:
The handle is designed with a dynamic clamping mechanism that can be quickly engaged and disengaged. This dynamic feature allows the handle to transition between fixed and movable states, enabling rapid opening for discharge while maintaining secure attachment during mixing, thereby improving ease of operation with minimal increase in device complexity
3Device complexity
If the discharge tube is used for both mixing and discharging, then device complexity reduces, but reliability decreases due to potential cement entry into the tube
Solution Approach 1:
The guide body is designed to protrude into the discharge tube and is selectively removable. During mixing, the guide body remains in place to prevent cement from entering the tube. Before discharge, the guide body is removed to open the pathway. This extraction approach allows the discharge tube to serve dual functions while maintaining reliability by preventing cement contamination during mixing
Data Source
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AI summary
The mixing device has a discharge tube (3) arranged in an opening (4) in a direction of a longitudinal axis in a displaceable manner. A mixing disk (5) is arranged at an end of the discharge tube, where the end is arranged inside a mixing cylinder (1). The mixing disk is provided with multiple mixing openings and a central outlet. The mixing disk is arranged between a closed front side i.e. screw cap (2), and a bottom of the mixing device. A handle (9) is fixed to the opposite end of the discharge tube in a detachable manner.