Tandem Dental Robot Arm for Compact Oral Navigation
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Solution Overview
Problem
Traditional dental surgery robot systems are bulky, heavy, and lack practicality due to their use of general-purpose industrial mechanical arms, leading to high costs and inefficient surgical operations.
Innovation Solution
A dental robot featuring a tandem positioning arm with rotary joints, absolute encoders, and servo torque motors, along with a dental treatment chair and visual navigator, which allows for precise instrument positioning and navigation using three-dimensional imaging for improved surgical accuracy and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If general-purpose industrial mechanical arms are used in dental surgery robot systems, then the system can provide basic positioning function, but the system becomes large in volume and weight, leading to high cost and poor practicability
Solution Approach 1:
The patent divides the positioning system into a tandem positioning arm structure with multiple segments (pedestal, positioning arms, jacket) connected by rotary joints. Each segment is optimized independently, allowing the system to achieve precise positioning while reducing overall weight and volume compared to a monolithic industrial mechanical arm.
Solution Approach 2:
The patent extracts and removes unnecessary components from general-purpose industrial mechanical arms, retaining only the essential positioning function. The simplified structure includes only the necessary rotary joints and positioning mechanisms, eliminating excess weight and complexity while maintaining surgical precision.
2Ease of operation
If general-purpose industrial mechanical arms are used in dental surgery robot systems, then the system can provide basic positioning function, but the system becomes large in volume, leading to high cost and poor practicability
Solution Approach 1:
The patent segments the positioning arm into multiple lightweight sections (pedestal, positioning arms, jacket) connected by rotary joints. This segmentation allows each component to be optimized for minimal volume while maintaining the necessary degrees of freedom for surgical positioning.
Solution Approach 2:
The patent removes bulky components from traditional industrial mechanical arms, keeping only the essential positioning functionality. The resulting tandem positioning arm has a compact structure that fits within dental surgical environments without compromising positioning accuracy.
3Manufacturing precision
If joint angle measuring devices are installed at each rotary joint, then the positioning precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical positioning systems with a sensor-based approach. Joint angle measuring devices (such as encoders or potentiometers) are installed at each rotary joint to electronically measure angles, replacing mechanical linkages and reducing overall system complexity while improving positioning precision.
Solution Approach 2:
The patent implements feedback control by installing joint angle measuring devices at each rotary joint. These devices provide real-time angle information to the control system, enabling precise positioning through closed-loop control. The feedback mechanism compensates for manufacturing tolerances and assembly variations, achieving high positioning accuracy without excessive mechanical complexity.
Data Source
AI summary
Embodiments of the present application provide a dental robot and an oral navigation method. The dental robot comprises a tandem positioning arm, wherein the tandem positioning arm comprises a pedestal, several positioning arms and a jacket, and the jacket is configured to clamp surgical instruments; the pedestal, the several positioning arms and the jacket are connected in series in sequence by rotary joints; a joint angle measuring device is mounted at each of the rotary joints. According to the dental robot and the oral navigation method provided by the present application, by the lightweight of the tandem positioning arm, the volume and weight of the dental robot system are reduced, which improves the practicality of the dental robot in surgical operations.