Automatic Jet Injector with Electric Pushing Mechanism

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Solution Overview

Problem

Conventional hand-operated jet injectors are cumbersome, lead to finger strain, and risk excessive tissue injection due to clogged syringes, complicating aesthetic medical procedures.

Innovation Solution

An automatic jet injector with an electrically activated pushing mechanism, including a power source, control device, and feedback module to ensure precise dosage and alert operators of syringe clogs, featuring an ergonomic design and adjustable dosing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional hand-operated jet injector is used, then the device is simple in structure, but the operation becomes complicated and causes finger strain

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical triggering system with an automatic electrically-activated pushing mechanism. The power source (motor) automatically pushes the syringe plunger through the pushing board, eliminating the need for manual finger pressure on a trigger while maintaining the injection function.

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

Solution Approach 2:

The device performs the pushing action automatically once activated, without requiring continuous manual intervention. The electrically-activated mechanism self-regulates the pushing process, allowing the operator to simply activate the power source rather than continuously manual-operate the trigger.

Inventive Principle:
Principle #25Self-service

2Reliability

If a hand-operated trigger mechanism is used, then the device structure remains simple, but finger injury risk increases due to repeated pressure

Engineering Contradiction:
ImprovereliabilityVSAvoidfinger injury
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent eliminates the manual trigger mechanism that causes finger injury by substituting it with an electrically-activated pushing system. The motor-driven mechanism removes the harmful repetitive finger pressure while maintaining the injection function, thereby improving reliability by eliminating the injury risk.

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

3Manufacturing precision

If manual triggering is used, then the device is easier to manufacture, but dosage control precision decreases due to potential clogging

Engineering Contradiction:
Improvedosage control precisionVSAvoidease of manufacture
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent incorporates a feedback module that monitors the injection process and detects syringe clogging conditions. When clogging is detected, the system provides feedback to the operator through visual or auditory signals, allowing for real-time dosage control and prevention of excessive tissue injection, thereby improving manufacturing precision of dosage delivery.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The automatic electrically-activated pushing mechanism provides more consistent and precise dosage control compared to manual triggering. The motor can be precisely controlled to deliver accurate push forces, and the feedback system ensures any deviations are immediately detected and corrected, improving dosage control precision.

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

4Duration of action of moving object

If manual operation is used for extended periods, then the device requires fewer components, but operator fatigue increases

Engineering Contradiction:
Improveduration of operationVSAvoidoperator fatigue
Core Design Contradiction:
Duration of action of moving objectVSEase of operation

Solution Approach 1:

The patent replaces the manual triggering action with an automatic electrically-activated pushing mechanism. This substitution eliminates repetitive finger strain and operator fatigue during extended procedures, allowing the device to maintain reliable operation throughout the entire duration of the injection process without compromising operator comfort.

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

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 precise, ergonomic, and safe tissue injection with reduced operator fatigue and prevents excessive tissue injection by providing real-time alerts for syringe clogs.

Implementation Method 1

A reciprocating screw has a front end operatively connected to the power source after passing through the positioning member and a rear end fastened in the fastening member after passing through the threaded hole

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

a feedback module is adapted to detect whether the power source operates normally or not, wherein in case of the syringe being clogged by the tissue in the injection procedure, a warning signal indicating abnormality is generated by a circuitry of the power source

Methodology Applied
Scientific EffectElectrical feedback detection: Electrical Resistance

Data Source

PatentUS11097056B2Automatic jet injector for administering tissue
Publication Date: 2021.08.24 BEYOUNG SCI CO LTD
  • US11097056B2 patent drawing
  • US11097056B2 patent drawing
  • US11097056B2 patent drawing

AI summary

An automatic jet injector for administering tissue is provided with a housing including a grip and a pushbutton; a syringe positioning device on a top of the housing and including an intermediate support and a rear pushing board having a lower through hole and a threaded hole under the through hole; a power source in the housing and including a power supply configured to supply power to the power source by pressing the pushbutton; a fastening member in the housing and being adjacent to a rear end of the housing; a positioning member being adjacent to the power source; a reciprocating screw having a front end operatively connected to the power source and a rear end fastened in the fastening member; a rod having a front end fastened in the positioning member and a rear end fastened in the fastening member; and a control device.