Single-Arm Specimen Collection Robot With Multi-Diameter Gripper
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Solution Overview
Problem
Existing specimen collection robot systems require large workspaces due to the use of two robot arms, are structurally complex, and incur high costs, with limitations in identifying accurate specimen paths and efficient space utilization.
Innovation Solution
A specimen collection robot system utilizing a single robot arm with a gripper capable of gripping objects of different diameters using a two-stage band twisted structure, combined with a compact end effector and manipulator structure, allowing for efficient specimen collection and reagent tube handling in a minimized space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If two robot arms are used for specimen collection and reagent tube transfer, then the specimen collection process can be performed, but the workspace required becomes very large
Solution Approach 1:
The patent combines the functions of two separate robot arms into a single robot arm. The single robot arm performs both specimen collection and reagent tube transfer operations by sequentially gripping different objects (swab and reagent tube) using the same gripping portion, thereby reducing the workspace area while maintaining full automation of the specimen collection process
Solution Approach 2:
The gripping portion is designed with universal functionality to handle multiple objects (swab and reagent tube) of different types and sizes. The same gripping mechanism can selectively grip either the swab for specimen collection or the reagent tube for transfer, eliminating the need for separate specialized robot arms for each function
2Extent of automation
If two robot arms are used for specimen collection, then the complete process can be performed, but the structure and control become complicated and costs increase
Solution Approach 1:
The patent merges two separate robot arm systems into a single robot arm system, thereby simplifying the overall structure and control architecture. Instead of coordinating two independent robot arms, the system now controls only one robot arm that performs multiple functions, reducing structural complexity and control system requirements while maintaining full automation
Solution Approach 2:
The single robot arm is equipped with a universal gripping portion that can handle both swabs and reagent tubes. This multi-functional design eliminates the need for separate specialized end-effectors or robot arms for each task, thereby reducing device complexity and associated costs while preserving complete automation capability
3Area of stationary object
If a single robot arm is used to grip objects of different diameters, then space utilization is improved, but the gripper must accommodate varying sizes
Solution Approach 1:
The gripping portion employs a dynamic band structure that can adjust its configuration to accommodate objects of different diameters. The band can be twisted or adjusted to match the size of the object being gripped (swab or reagent tube), providing the necessary adaptability while enabling the use of a single robot arm and improving space utilization
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 system optimizes space utilization, reduces structural complexity, and lowers costs by using a single robot arm, enabling efficient specimen collection and reagent handling in a compact setup, suitable for various subject heights and minimizing secondary infections.
Implementation Method 1
a plurality of bands fixed to span the first drum and the second drum, in the hollows of the drum and the second drum, wherein the first drum and the second drum are relatively rotatable, wherein, due to the relative rotation of the first drum and the second drum, the plurality of bands are twisted with one another, to tighten and fix an object entering the hollows
Data Source
AI summary
A specimen collection robot system for performing a specimen collection process having performing specimen collection of a subject with a swab and inserting the swab into a reagent tube has a robot including a gripper and a robot arm. The gripper is configured to grip objects with different diameters by using a same gripping portion. The robot is configured to perform the specimen collection process, by selectively gripping the swab and the reagent tube, without replacing the gripper.