Remote Pneumatic Unlocking Assembly for Patient Fixing Plates

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Solution Overview

Problem

Existing fixing apparatuses in radiation therapy require cumbersome unlocking steps and long time, necessitating physical approach for unlocking, which can be detrimental in emergencies.

Innovation Solution

An unlocking assembly with a flexible component connected to a locking main body, allowing remote control of the locking mechanism through an inflating and deflating component to switch between expanding and compressed states, enabling quick unlocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the fixing apparatus uses a traditional locking mechanism that requires manual approach to unlock, then the locking is secure and reliable, but the unlocking time is long and the operation is complex

Engineering Contradiction:
Improvelocking reliabilityVSAvoidunlocking time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the traditional mechanical key-based unlocking system with a pneumatic system. The unlocking assembly uses an air bag that inflates to push the locking main body out of the fixing hole, achieving unlocking without mechanical intervention. This substitution eliminates the need for manual approach and key operations, significantly reducing unlocking time while maintaining reliability through the pneumatic actuation mechanism.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs pneumatic principles by introducing an air bag as the flexible component. When air is supplied to the air bag, it expands and generates sufficient force to push the locking main body out of the fixing hole,实现快速解锁。This pneumatic mechanism allows remote unlocking without requiring physical contact with the fixing apparatus, solving the contradiction between secure locking and rapid unlocking.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If the fixing apparatus requires doctor to rush inside the treatment room to unlock, then the locking is secure, but the emergency response time is delayed

Engineering Contradiction:
Improvelocking securityVSAvoidemergency response speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the mechanical key-based unlocking system with a pneumatic system. The unlocking assembly uses an air bag that inflates to push the locking main body out of the fixing hole, achieving unlocking without mechanical intervention. This substitution eliminates the need for manual approach and key operations, significantly reducing unlocking time while maintaining reliability through the pneumatic actuation mechanism.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an air bag as an intermediary component between the control system and the locking mechanism. The air bag can be inflated remotely through a hose to push the locking main body out, serving as a mediator that transmits the unlocking command without requiring direct physical contact. This intermediary mechanism enables remote emergency unlocking, dramatically improving response speed while maintaining locking security.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If the locking main body is fixed in the fixing hole, then the structure is simple, but the unlocking operation is complex and time-consuming

Engineering Contradiction:
Improvestructure complexityVSAvoidunlocking operation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent transforms the static locking main body into a dynamic component that can move between locked and unlocked positions. The locking main body is designed to be slidable within the fixing hole, allowing it to be pushed out by the inflated air bag. This dynamic design maintains structural simplicity while dramatically improving ease of operation, as the unlocking action becomes a simple pneumatic push rather than a complex manual manipulation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent enables the locking main body to self-unlock through the pneumatic action of the air bag. When air is supplied, the air bag inflates and automatically pushes the locking main body out of the fixing hole without requiring external manual intervention. This self-service mechanism simplifies the unlocking operation while maintaining structural simplicity, as the system uses its own pneumatic power source to achieve the unlocking action.

Inventive Principle:
Principle #25Self-service

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

Facilitates rapid unlocking of the fixing apparatus from a distance, reducing the time and effort required to release the patient from the fixing apparatus during emergencies.

Implementation Method 1

an air-bag protruding portion, wherein the air-bag protruding portion is used to push the locking main body so as to enable the locking main body to move in a direction protruding from the fixing hole

Methodology Applied
Scientific EffectAir-bag expansion: Pressure Increase

Data Source

PatentUS12629541B2Unlocking assembly, human body fixing apparatus and unlocking method for the unlocking assembly
Publication Date: 2026.05.19 KLARITY MEDICAL & EQUIP GZ
  • US12629541B2 patent drawing
  • US12629541B2 patent drawing
  • US12629541B2 patent drawing

AI summary

An unlocking assembly includes a fixing plate, locking bodies, and a flexible member. The fixing plate is provided with fixing holes; the locking bodies are movably mounted in the fixing holes; the flexible member is connected to the locking bodies and is configured to drive the locking bodies to move towards a direction extending out of the fixing holes.