Automated Cartilage Construction Apparatus with pH Control
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Solution Overview
Problem
Current clinical treatments for cartilage injuries, such as those caused by trauma or osteopathia, are inefficient and burdensome, with existing methods like conservative therapy, autologous osteochondral transplantation, and artificial joint replacement having limitations including temporary pain relief, donor site damage, immunological rejection, high costs, and significant physical and mental burdens on patients.
Innovation Solution
An in vitro construction apparatus for injectable tissue-engineered cartilage, comprising an incubator, centrifugal device, and control system, which automates the process of mixing and preparing type II collagen with BMSCs, ensuring precise temperature control, pH management, and quantitative reagent addition to facilitate efficient cartilage construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual preparation of injectable tissue engineered cartilage is performed by medical staff, then flexibility and adaptability are maintained, but work burden increases and efficiency decreases
Solution Approach 1:
The apparatus is divided into distinct functional modules: a centrifugal device for cell separation, an incubator for culture maintenance, and a control system for automated operation. Each module performs a specific function in the cartilage preparation process, enabling streamlined automated operation while reducing overall complexity through functional specialization.
Solution Approach 2:
The control system enables automated operation where the apparatus performs tasks independently - the centrifugal device automatically separates cells, the incubator maintains optimal culture conditions, and the system coordinates operations without continuous manual intervention, thereby reducing medical staff workload while maintaining preparation quality.
2Ease of operation
If automated construction apparatus is used, then work burden on medical staff is reduced and efficiency is improved, but device complexity increases
Solution Approach 1:
The control system serves multiple functions: it controls the centrifugal device operation, monitors incubator conditions, coordinates the preparation workflow, and manages data recording. This multi-functionality consolidates several control tasks into a single system, reducing operational complexity despite the apparatus's sophisticated capabilities.
Solution Approach 2:
The control system acts as an intermediary between the various apparatus components and the operator. It manages the complex interactions between the centrifugal device, incubator, and preparation processes, presenting a simplified interface to users while handling the underlying complexity of coordinating multiple subsystems.
3Reliability
If type II collagen is mixed with hydrochloric acid solution and manually prepared, then material flexibility is maintained, but acceptability is low causing material waste
Solution Approach 1:
The incubator maintains culture conditions with monitoring and adjustment capabilities, ensuring optimal environment for cartilage construction. This feedback control ensures consistent quality outcomes and reduces the need to discard substandard preparations, thereby minimizing material waste while maintaining high reliability of the produced cartilage.
Solution Approach 2:
The apparatus performs preliminary actions including pre-separation of cells using the centrifugal device, pre-culture preparation in the incubator, and pre-mixing of collagen with hydrochloric acid solution under controlled conditions. These preliminary steps ensure proper material preparation before final cartilage construction, improving acceptability and reducing waste.
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 apparatus automates the construction of injectable tissue-engineered cartilage, reducing the burden on medical staff, improving efficiency, and enhancing the quality of the resulting cartilage, thereby providing a more effective solution for cartilage repair.
Implementation Method 1
the type II collagen-hydrochloric acid solution is first to be neutralized, and then the prepared BMSCs will be moved into the type II collagen-hydrochloric acid solution, which upon fully mixed, centrifuged to remove bubbles
Implementation Method 2
comprising: an incubator, a centrifugal device arranged in the incubator, and a control system for controlling temperature in the incubator
Data Source
AI summary
An injectable tissue engineered cartilage in vitro construction apparatus, comprising an incubator (1), a centrifugal device arranged in the incubator (1), and a control system for controlling a temperature in the incubator (1) and an action of the centrifugal device. The centrifugal device comprises a centrifuge, a container base (2) mounted onto the centrifuge, a dosing system for adding preparation reagent, and a stirring system for stirring the reagent. With a controller (17) and a pH sensor (16), a measured pH value will be transmitted by the pH sensor (16) to the controller (17) in real time. The controller (17) controls an action of a driving mechanism via a control module II (21), to drive a piston rod to add NaOH solution into a container tank (6). When the pH value of the solution falls in a predetermined range, the driving mechanism is stopped, to precisely control the pH value of the solution. With the stirring system and the centrifugal device, the solution can be stirred and centrifuged as desired, to eventually in vitro construct an injectable tissue engineered cartilage. This relief the burden of the medical staff and improve production efficiency.