Multi-Angle Bending Clamp Head for Stable Laparoscopic Control
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Solution Overview
Problem
Existing minimally invasive surgical instruments face issues such as limited flexibility, instability, and lack of self-locking mechanisms, leading to operational challenges, safety hazards, and decreased surgical efficiency.
Innovation Solution
A hand-held pistol-shaped multi-angle bending surgical instrument with a clamp head mechanism, rotation control, bending control, opening and closing control, and self-locking mechanisms, featuring a pistol-shaped handle for improved flexibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If surgical instruments are designed as rigid straight tubes, then the structure is simple and easy to manufacture, but the flexibility and ability to reach deep or narrow areas of the abdominal cavity is limited
Solution Approach 1:
The surgical instrument is divided into multiple segments including a clamp head mechanism, rotation control mechanism, bending control mechanism, opening and closing control mechanism, and pistol-shaped handle. Each segment can move independently to achieve multi-angle bending and rotation, allowing the instrument to reach deep and narrow areas while maintaining manageable complexity through modular design
Solution Approach 2:
The instrument incorporates dynamic components including a rotatable clamp head mechanism that can rotate 360 degrees around the longitudinal axis, and bending control mechanisms that allow the instrument shaft to bend at multiple angles. These dynamic features enable the instrument to adapt to complex surgical pathways while the controlled nature of the movement maintains operational precision
2Reliability
If surgical instruments lack self-locking mechanisms, then the structure is simpler, but operational stability and safety are compromised
Solution Approach 1:
The instrument incorporates self-locking mechanisms that automatically lock the clamp head mechanism at desired positions without requiring continuous external force or attention from the operator. The self-locking feature engages passively when the clamp head rotates to specific angular positions, providing automatic stabilization that enhances operational reliability while reducing the complexity of active control systems
Solution Approach 2:
The self-locking mechanism prevents unintended movement or slippage of the instrument by preemptively engaging locking features at critical positions. This preliminary anti-action counteracts external forces that might otherwise cause instrument instability or accidental injury, ensuring operational stability before problems can occur
3Adaptability or versatility
If multiple transmission soft shafts are used to control clamp head opening, closing, and bending, then the flexibility and control capability are improved, but the structure becomes more complex and risk points increase
Solution Approach 1:
The instrument combines multiple control functions into integrated mechanisms. The clamp head mechanism integrates rotation control, bending control, and opening-closing control into a unified structure controlled by a single pistol-shaped handle. This merging reduces the number of separate transmission soft shafts needed while maintaining comprehensive control capability through coordinated movement of integrated components
Solution Approach 2:
The pistol-shaped handle serves as a universal control interface that can operate all functions of the instrument including clamp head rotation, bending, and opening-closing actions. This multi-functional control mechanism eliminates the need for separate control systems for each function, reducing overall structural complexity while maintaining full operational versatility
Data Source
AI summary
A hand-held pistol-shaped multi-angle bending surgical instrument includes a clamp head mechanism, a clamp head rotation control mechanism, a clamp head bending control mechanism, a clamp head opening and closing control mechanism, a self-locking mechanism and a pistol-shaped handle; the clamp head mechanism is connected to the clamp head rotation control mechanism, the clamp head bending control mechanism and the clamp head opening and closing control mechanism respectively, the clamp head rotation control mechanism is connected to the clamp head bending control mechanism, the clamp head bending control mechanism is connected to the clamp head opening and closing control mechanism, the clamp head opening and closing control mechanism is connected to the self-locking mechanism; the clamp head bending control mechanism, the clamp head opening and closing control mechanism and the self-locking mechanism are all connected to the pistol-shaped handle. The working end of the surgical instrument is multi-angle bendable.