Interventional Robot Catheter Drive Layout for Compact Delivery
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Solution Overview
Problem
Existing interventional surgical robots have a large overall volume and bulkiness, which hinders their spatial layout due to the need for multiple driving devices to maintain catheters in a straightened state during delivery.
Innovation Solution
A slave driving device with a fixed first driving mechanism and a movable second driving mechanism, equipped with a detection component to ensure the catheter remains straightened, utilizing a lead screw structure and synchronous belt for precise movement, reducing the overall size and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple driving devices are used to deliver catheters with sufficient motion travel, then the delivery function is improved, but the overall volume and bulkiness of the device increases
Solution Approach 1:
The patent implements a nested structure where the second driving mechanism is movable along the guide rail and can be positioned within the spatial envelope defined by the first driving mechanism. The movable platform carries the second driving mechanism, allowing it to nest within the overall device structure during catheter delivery, thereby reducing the required internal space while maintaining sufficient motion travel for both driving devices
Solution Approach 2:
The patent transforms the second driving mechanism from a fixed structure to a movable one that can dynamically reposition along the guide rail. This dynamic configuration allows the second driving mechanism to move into position for catheter delivery and then retract or reposition when not in use, reducing the permanent internal space requirement while maintaining the necessary motion travel capability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device minimizes the overall size and weight, facilitating spatial layout while ensuring precise and safe delivery of elongated medical instruments by maintaining the catheter straightened throughout the process.
Implementation Method 1
utilizing a lead screw structure and synchronous belt for precise movement
Implementation Method 2
utilizing a lead screw structure and synchronous belt for precise movement
Data Source
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AI summary
The present application relates to the technical field of medical robots, and in particular, to a slave driving device of an interventional surgical robot and an elongated medical instrument delivery method. The slave driving device includes: a frame; a first driving mechanism, fixedly arranged on the frame to clamp one end of an elongated medical instrument to deliver the elongated medical instrument; and a second driving mechanism, movably arranged on the frame to clamp the other end of the elongated medical instrument to deliver the elongated medical instrument through movement on the frame. Since the first driving mechanism is fixedly arranged and only the second driving mechanism is able to move on the frame, the overall size of the slave driving device is reduced by using a reasonable structural design, and the occupied space and the overall weight of the slave driving device are reduced, thereby facilitating the spatial layout of the surgical robot.