Articulated Fluid Supply Device for Continuous Bone Cement Injection
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Solution Overview
Problem
Existing devices for supplying bone cement into a patient's vertebrae lack adaptability and versatility, restricting the doctor's mobility during the injection process and requiring assistance to move away from the operation area without interrupting the injection.
Innovation Solution
A device comprising a first and second tubular element that can be angularly moved relative to each other, with an articulation axis allowing for 180° to 360° rotation, enabling the doctor to move freely while maintaining continuous injection, and featuring a removably fixed needle with a bevel tip for precise cement placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a device with rotatably mounted connector component is used, then relative mobility of components is ensured, but structural constraints limit freedom of action and adaptability
Solution Approach 1:
The device employs a dynamic articulated connection between the first and second tubular elements, allowing continuous angular movement during operation. This dynamic joint enables the operator to freely adjust the relative position and orientation of the elements without structural constraints, achieving both ease of operation and adaptability to various surgical conditions.
2Stability of the object's composition
If a device with structural constraints is used, then component stability is maintained, but doctor's freedom of movement is restricted
Solution Approach 1:
The articulated connection provides dynamic stability rather than rigid fixation. The joint maintains stable fluid communication between tubular elements while allowing the doctor to move freely, as the articulation accommodates various angles and positions without compromising the integrity of the fluid pathway or component connections.
3Reliability
If a device with fixed component positions is used, then injection continuity is maintained, but doctor must remain at operation area
Solution Approach 1:
The articulated connection enables the doctor to move away from the operation area while maintaining injection continuity. The flexible joint allows the device to adapt to the doctor's movements, ensuring that fluid flow remains uninterrupted regardless of the doctor's position, thus achieving both reliability and operational freedom.
4Device complexity
If a device with limited angular movement is used, then structural simplicity is maintained, but adaptability to different injection angles is reduced
Solution Approach 1:
The articulated connection provides extensive angular movement capability without significantly increasing device complexity. The simple yet effective joint design allows the second tubular element to move through a wide range of angles relative to the first element, enabling adaptation to different injection angles while maintaining overall structural simplicity.
Data Source
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AI summary
The present invention regards a device for supplying fluid substances in the body of a patient comprising a first tubular element (2), a second tubular element (3) as well as at least one component (2d, 3d, 2d1, 3d1) for the angular movement or articulation of the first tubular element (2) with respect to the second tubular element (3) around an articulation axis (z-z).