Multi-Contact Plate for Stable Guide Wire Rotation in Surgery Robots
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Solution Overview
Problem
Conventional vascular intervention robots face issues with signal disruption and mechanical damage due to twisting of electrical lines and pogo pins contacting rotating copper rings, and inconvenience in inserting and removing guide wires, leading to instability and inefficiency in vascular intervention procedures.
Innovation Solution
A vascular intervention robot equipped with a multi-contact plate system that includes a translational module, rotational module, translational motor, and rotary connection module, featuring multiple contact points and slits to stabilize electrical connections and facilitate smooth insertion and rotation of surgical wires, along with a conduit and micro-conduit driving unit for precise vascular access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pogo pin is used to electrically contact a rotating copper ring for signal transmission, then rotational movement of the guide wire can be achieved, but signal disruption and mechanical damage occur due to twisting of the signal line and contact instability
Solution Approach 1:
The patent extracts the rotating copper ring and pogo pin from the system and replaces them with a stationary multi-contact plate that has multiple electrical contacts arranged radially. This eliminates the rotating electrical connection entirely, removing the source of signal line twisting and contact instability while preserving the rotational capability of the guide wire through mechanical rotation of the plate itself.
Solution Approach 2:
The multi-contact plate serves as an intermediary structure that provides multiple radial electrical contacts without requiring rotational movement for electrical connection. The plate can rotate with the guide wire while maintaining stable electrical contacts through its radial contact arrangement, mediating between the need for rotation and the need for stable electrical connection.
2Device complexity
If a single-center gear disc with copper ring is used for guide wire insertion, then the structure is simple, but insertion and removal of guide wire becomes inconvenient
Solution Approach 1:
The patent segments the single-center gear disc into multiple radial sections with multiple contact plates arranged radially. Each contact plate can independently interact with the guide wire, allowing the guide wire to be inserted and removed from different radial positions. This segmentation provides multiple access paths while maintaining structural integrity and rotational capability.
3Extent of automation
If multiple electrical lines are connected to a rotating motor for driving translational and rotational modules, then comprehensive control is achieved, but signal disruption occurs due to line twisting
Solution Approach 1:
The patent removes the rotating electrical connection entirely by replacing the rotating copper ring with a stationary multi-contact plate structure. The motor can still rotate and provide driving force, but the electrical connections are made through the stationary radial contacts of the multi-contact plate, eliminating signal line twisting while maintaining comprehensive motor control capability.
Data Source
AI summary
A vascular interventional surgery robot having a multi-contact plate is provided. The vascular interventional surgery robot having a multi-contact plate comprises: a translational module for allowing a surgical wire to undergo translational motion; a translational motor which provides translational driving force for allowing the surgical wire to undergo translational motion, and which is disposed at one side of the translational module; a rotational module which axially rotates the surgical wire, and which rotates the translational module and the translational motor together during the axial rotation of the surgical wire; a translational motor driver for providing the translational driving force to the translational motor; and a rotary connection module for providing a path for an electrical line electrically connecting the translational motor driver and the translational motor, wherein the rotary connection module includes connection plates which are aligned in the longitudinal direction of the surgical wire and of which the number corresponds to that of one or more electrical lines, each of one or more connection plates has a slit which is open toward the center thereof so that the surgical wire is used in the direction of the rotational axis of the translational module by means of the rotational module, has the electrical line connected to one side thereof, and has an annular strip-shaped connection ring, of which one circumferential side is open through the slit, disposed therein, and the rotary connection module can include the multi-contact plate having at least two contact points at different positions in the circumferential direction on the surface of the connection ring to electrically connect the connection ring and the translational motor driver.