Medical Detector Shielding Against Irradiation Damage

Solution Overview

Problem

Medical detectors face issues during sterilization due to electromagnetic waves or irradiation, which can damage the detection circuit board and affect the sensitive elements, leading to faulty readings and potential contamination.

Innovation Solution

A detector design incorporating a shielding assembly that forms a total-shadow shielding zone to block irradiation rays, protecting sensitive elements and preventing external contamination, while allowing sterilization to occur effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detector is sterilized through electromagnetic waves or irradiation, then the sterilization effect is achieved, but the detection circuit board and sensitive elements are damaged

Engineering Contradiction:

Improvesterilization effectivenessVSAvoidirradiation damage to circuit board

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The detector is divided into sterilizable components (housing, probe, guide needle) and non-sterilizable components (detection circuit board with sensitive elements). The circuit board is isolated in a sealed enclosure that shields it from irradiation while allowing the rest of the device to be sterilized effectively.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A shielding structure acts as an intermediary between the irradiation source and the detection circuit board. This shield blocks harmful radiation from reaching the sensitive elements while permitting sterilization of the surrounding components through electromagnetic waves or irradiation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the detector is sterilized through electromagnetic waves or irradiation, then the sterilization effect is achieved, but the detection accuracy is compromised due to fault in detection circuit board

Engineering Contradiction:

Improvesterilization effectivenessVSAvoiddetection accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The detector is segmented into sterilizable components (housing, probe, guide needle) and non-sterilizable components (detection circuit board with sensitive elements). The circuit board is isolated in a sealed enclosure that shields it from irradiation while allowing the rest of the device to be sterilized effectively.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A shielding structure acts as an intermediary between the irradiation source and the detection circuit board. This shield blocks harmful radiation from reaching the sensitive elements while permitting sterilization of the surrounding components through electromagnetic waves or irradiation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If the detection circuit board is exposed to irradiation during sterilization, then the sterilization process is simplified, but the sensitive element fails leading to faulty detection

Engineering Contradiction:

Improvesterilization process simplicityVSAvoiddetection functionality

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The detector is divided into sterilizable components (housing, probe, guide needle) and non-sterilizable components (detection circuit board with sensitive elements). The circuit board is isolated in a sealed enclosure that shields it from irradiation while allowing the rest of the device to be sterilized effectively.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A shielding structure acts as an intermediary between the irradiation source and the detection circuit board. This shield blocks harmful radiation from reaching the sensitive elements while permitting sterilization of the surrounding components through electromagnetic waves or irradiation.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 shielding assembly effectively reduces the impact of irradiation on the detection circuit board, ensuring the detector's functionality and preventing contamination, thus ensuring accurate and safe medical detection processes.

Implementation Method 1

when the detector is sterilized through an irradiation ray, the shielding assembly is used for blocking part of the irradiation ray, to form a total-shadow shielding zone for protecting the sensitive element

Methodology Applied

Scientific EffectIrradiation blocking: Absorption (EM radiation)

Implementation Method 2

the bearing shell is hermetically connected with the cover body and forms a sealed storage cavity

Methodology Applied

Scientific EffectHermetic sealing: Physical Containment

Data Source

PatentUS12257361B1Detector and sterilization system

Publication Date: 2025.03.25 SHENZHEN MUXIN TECH CO LTD

AI summary

A detector includes a housing assembly, a detection assembly and a shielding assembly. The detection assembly includes a first housing, a detection circuit board and a probe, the detection circuit board is disposed in the first housing and electrically connected with the probe, the detection circuit board includes a sensitive element, and a first end of the probe is fixed in the first housing while a second end stretches out of the first housing; the housing assembly includes a collision housing and a pressing portion that are capable of sliding in relative to each other, the detection assembly is located below a bottom of the pressing portion, the collision housing is used for abutting against a sampling part, and the pressing portion is used for driving the detection assembly to move towards the sampling part, so as to pierce the probe into the sampling part for detection.