Robotic Drug Preparation Layout for Parallel Sterile Compounding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drug preparation methods, both manual and automated, face issues such as operator safety risks, contamination, low productivity, inflexibility, nebulization problems, and inefficient use of resources, leading to suboptimal production processes and increased costs.
Innovation Solution
An apparatus with a dual-zone design featuring a warehouse and set-up area, utilizing robotic manipulators to automate drug preparation, eliminating the need for needles, and enabling simultaneous operations with high precision and flexibility, allowing multiple preparations in a single cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automated devices are used for drug preparation, then operator safety and preparation quality are improved, but productivity remains limited due to single-preparation cycling
Solution Approach 1:
The apparatus is divided into multiple independent workstations (first workstation, second workstation, third workstation) that can operate simultaneously. Each workstation is equipped with its own manipulator and functional devices, allowing parallel processing of multiple preparations without interfering with each other, thereby increasing overall productivity while maintaining safety standards.
Solution Approach 2:
The warehouse zone allows for pre-loading of materials (drug vials, syringes, diluents) before actual preparation cycles begin. This preliminary action enables the system to have materials ready and available, reducing waiting time during preparation cycles and allowing continuous operation across multiple workstations, thereby enhancing productivity.
2Manufacturing precision
If automated devices are used for drug preparation, then preparation quality is improved, but operator involvement is still required for loading and unloading operations
Solution Approach 1:
The manipulator is designed with universal gripping capabilities that can handle various types of containers (vials, syringes, bottles) and perform multiple operations (picking, placing, transferring, sealing) across different workstations. This multi-functionality reduces the need for specialized human intervention for different task types, increasing automation extent while maintaining preparation quality.
Solution Approach 2:
The system incorporates automatic loading and unloading mechanisms where the manipulator autonomously transfers materials between the warehouse zone and workstations, and where workstations can automatically dispense and prepare medications without continuous human oversight. The system serves itself by managing material flow and preparation processes, reducing operator involvement while preserving quality through automated precision.
3Measurement precision
If materials are loaded into the warehouse for each specific prescription, then preparation accuracy is ensured, but productivity decreases due to repeated loading operations
Solution Approach 1:
The warehouse zone enables pre-loading of materials (drug vials, syringes, diluents) with associated prescription data before actual preparation cycles begin. Materials are staged and organized in the warehouse according to upcoming preparation needs, allowing the system to retrieve pre-positioned materials during execution without repeated loading operations, thereby maintaining dosage precision while improving productivity.
Solution Approach 2:
The system maintains continuous operation by having the warehouse zone continuously supply materials to active preparation cycles across multiple workstations. While one workstation is preparing a medication, another can simultaneously access different pre-loaded materials, ensuring that the useful action of material retrieval and preparation continues without interruption or repeated loading, thus enhancing productivity while preserving dosing accuracy through controlled dispensing.
4Adaptability or versatility
If syringes with needles are used for component withdrawal, then preparation flexibility is maintained, but contamination and nebulization risks increase
Solution Approach 1:
The invention extracts and eliminates the needle component from the syringe system. Instead of using traditional syringes with needles for component withdrawal, the system employs needleless syringes that interface directly with vial ports through sterile connectors. This extraction of the harmful needle element removes the source of nebulization and contamination risks while maintaining the flexibility of syringe-based delivery through alternative, safer mechanisms.
Solution Approach 2:
The system introduces sterile connectors and intermediate coupling devices that mediate between the syringe and the drug vial. These intermediaries provide sealed, controlled interfaces for fluid transfer without requiring needle penetration, thereby eliminating nebulization and contamination risks associated with needle use while preserving preparation flexibility through programmable syringe control and various connector types.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus (10) for preparing drugs in a safe and controlled environment, comprising a casing or frame (12) comprising two zones adjacent to each other and defined by a warehouse zone or area (18) and a set-up zone or area (20) which are separate from each other and communicating, the warehouse zone or area (18) defining an area assigned for the loading and storage by means of a warehouse (26) of materials required for the pharmaceutical preparations and the set-up zone or area (20) defining an area in which the drug preparation is carried out with the materials picked up from the warehouse zone or area by means of a first robotic manipulator (30) and a second robotic manipulator (31) simultaneously cooperating with each other and with functional devices for the pharmaceutical preparation, carrying out mutually different actions to perform set-up and preparation operations in "masked time".