Tube Connecting Apparatus Self-Reset Control
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Solution Overview
Problem
Conventional tube connecting apparatuses face issues with self-reset operations after power interruptions, leading to potential damage and safety hazards due to adhered tubes and spilled blood during reconnecting.
Innovation Solution
A tube connecting apparatus equipped with a holding section, cutting section, electrode section, movement units, and a controlling section that detects the cutting section's position using sensors to perform self-reset operations, ensuring safe and damage-free reconnection by controlling power supply and movement units based on detected information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automatic reset operation is implemented after power interruption, then productivity is improved by enabling self-reset without operator intervention, but reliability deteriorates due to potential damage from adhered tubes and spilled blood during uncontrolled reconnection
Solution Approach 1:
The control unit receives detection signals from sensors that monitor the cutting section's position and the holding section's state. Based on this feedback information, the control unit determines whether a reset operation is necessary and executes appropriate control actions, enabling the apparatus to automatically recover from power interruptions safely without operator intervention.
Solution Approach 2:
Before executing the reset operation, the control unit preliminarily determines the necessity of reset based on sensor detection information. This preliminary assessment ensures that the reset operation is only performed when safe conditions are met, preventing damage from adhered tubes and blood spills while enabling automatic recovery.
2Reliability
If manual tube removal is performed after power interruption, then reliability is improved by preventing damage from adhered tubes, but productivity deteriorates due to increased operator workload and time consumption
Solution Approach 1:
The apparatus performs self-diagnosis and self-reset operations automatically after power interruption. The control unit uses sensor information to determine whether reset is necessary and executes the reset operation without operator intervention, eliminating the need for manual tube removal and reducing operator workload while maintaining safety.
3Manufacturing precision
If cutting section position is continuously monitored during reset operation, then manufacturing precision is improved by ensuring accurate tube alignment, but device complexity increases due to additional sensors and control mechanisms
Solution Approach 1:
A sensor detects the cutting section's position and provides feedback signals to the control unit. This feedback mechanism ensures accurate tube alignment during reset operation without requiring complex continuous monitoring systems, achieving precise tube connection through simple yet effective position detection.
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
Enables safe and automated self-reset operations without damaging the apparatus, preventing blood spills and infections, and ensuring reliable tube connection processes even after power interruptions.
Implementation Method 1
an electrode section for supplying electric power for heating to the cutting section
Implementation Method 2
the cutting plate is heated and moved to melt and cut the tubes
Data Source
AI summary
A tube connecting apparatus that can carry out self reset operation without giving damage to the apparatus and that safety of an operator is considered. The tube connecting apparatus has an EEPROM memorizing information with respect to a connecting process state of tubes. When electric power is inputted, the apparatus judges whether power supply was shut off during tube connecting operation based upon the information memorized in the EEPROM with respect to the connecting process state of tubes and a detecting result of a wafer 41 according to a wafer position detecting sensor 421, and carries out reset operation. In the reset operation, the apparatus restarts and completes connecting operation (S620 to 632) by heating the wafer again to fuse the tubes adhered to the wafer (S614, 616). Error indication is displayed at a LCD display to secure connecting strength and the like (S634). A locking state is not cancelled during cooling time after heating of the wafer is stopped to secure safety (S628 to S632).