Medical Robot Tool Attachment With Guide-Groove Force Transmission
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Solution Overview
Problem
Existing medical robots face challenges with complex configurations and gaps in transmission mechanisms, leading to inaccurate control and increased workload due to the need for biasing forces and detection devices for engagement verification.
Innovation Solution
A medical robot design featuring a surgical tool and adapter with guide grooves and transmission plates that allow for simple, gap-free engagement of driven portions, enabling accurate force transmission without biasing mechanisms and detection devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional transmission configuration with gaps is used in medical robots, then the system can accommodate detection devices for engagement verification, but the device complexity increases and operability deteriorates
Solution Approach 1:
The patent extracts and eliminates the detection devices and biasing mechanisms from the transmission configuration. By removing these unnecessary components, the system achieves reliable engagement verification through the guide groove and projection mechanism alone, thereby reducing device complexity while maintaining engagement verification reliability
Solution Approach 2:
The guide groove and projection mechanism is designed to self-align and self-verify engagement without requiring external detection devices. The projection automatically engages with the guide groove, and the engagement status can be directly observed, making the system self-sufficient and eliminating the need for additional verification components
2Measurement precision
If detection devices are added to ensure proper engagement, then engagement accuracy improves, but the configuration becomes cumbersome and ease of operation deteriorates
Solution Approach 1:
The system uses the guide groove and projection to automatically guide and verify engagement without requiring detection devices. The operator can directly observe the engagement status through the transparent or translucent attachment portion, making the operation simple and intuitive while maintaining high engagement accuracy
Solution Approach 2:
The patent employs visual indicators (such as transparent or translucent materials) that allow direct observation of engagement status. This visual feedback mechanism provides clear engagement verification without requiring complex detection devices, thereby maintaining ease of operation while ensuring engagement accuracy
3Reliability
If biasing mechanisms are used to maintain transmission plate position, then transmission reliability improves, but the configuration complexity increases and ease of manufacture deteriorates
Solution Approach 1:
The patent removes biasing mechanisms from the transmission configuration. The guide groove and projection mechanism naturally maintains the transmission plate position through geometric constraints, eliminating the need for springs or other biasing components. This simplifies the configuration and makes the system easier to manufacture while maintaining transmission reliability
Solution Approach 2:
Instead of using active biasing mechanisms to maintain position, the patent uses passive geometric constraints (guide groove and projection) that inherently maintain the transmission plate position. This inverted approach replaces complex active control with simple passive structure, improving ease of manufacture while maintaining reliability
Data Source
AI summary
A medical robot includes a surgical tool and an attachment portion. The surgical tool has a main body that includes a driven portion that transmits a driving force, and a driven side hole. The attachment portion has an attachment surface and a transmission side hole is arranged in which a transmission plate transmits the driving force in a linear motion direction to the driven portion. The surgical tool and the attachment portion respectively include a surgical tool engagement portion and an attachment engagement portion that engage to attach the surgical tool to the attachment portion by relative movement in a relative movement direction along the attachment surface and intersecting the linear motion direction. The attachment surface includes a guide groove that guides the driven portion to a specified position of the transmission side hole.