Pharmaceutical Injection Device Automatic Code Reading Mechanism

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Solution Overview

Problem

Conventional pharmaceutical injection devices are inconvenient due to reliance on manual mounting operations for reading the identification code on the syringe, leading to repeated mounting attempts and potential misreading.

Innovation Solution

The device includes a slide motor and code reader that automatically positions the syringe for identification code reading after mounting, allowing for accurate and efficient reading of the syringe's identification code without the need for multiple mounting attempts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual mounting operation is used to position the syringe for code reading, then the reading section can read the identification code, but the user has to repeat the mounting operation multiple times which reduces convenience

Engineering Contradiction:

Improveidentification code reading accuracyVSAvoidmounting operation convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The syringe automatically positions itself for code reading by being driven by the injection driver after mounting. The reading section reads the identification code during this automatic positioning process, eliminating the need for manual re-mounting operations to achieve proper code reading alignment.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical mounting operation is replaced by an automatic driving mechanism. The injection driver automatically positions the syringe relative to the reading section, substituting the manual mechanical adjustment with an automated mechanical system that ensures accurate code reading.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If the reading section is fixed to the mounting portion, then the identification code can be read during mounting, but repeated mounting attempts are required which increases time consumption

Engineering Contradiction:

Improveidentification code reading accuracyVSAvoidtime for mounting operations

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The reading section is positioned to read the identification code after the syringe is mounted and driven to a predetermined position. This preliminary positioning ensures that the code reading occurs automatically as part of the normal operation sequence, preventing the need for repeated mounting attempts and reducing time loss.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The identification code reading is integrated into the continuous operation of the injection device. After mounting, the syringe is driven continuously through its operational sequence, and the code reading occurs as part of this continuous action without interruption or repetition, eliminating time waste from repeated mounting.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentEP2526986B1Medicine administering device

Publication Date: 2016.11.30 PANASONIC HEALTHCARE HLDG CO LTD

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Figure 3(a)~3(b)

AI summary

The pharmaceutical injection device of the present invention comprises an inner case (111) in which is mounted a preparation syringe (104) having an identification code (104a), a piston driving motor (115) that drives the preparation syringe (104) mounted in this inner case (111), and a code reader (112) that reads the identification code (104a) of the preparation syringe (104). A slide motor (113) is provided that drives the preparation syringe (104) mounted in the inner case (111) and/or the code reader (112), so that the identification code (104a) is read by the code reader (112).