Bird Injection Guide Assembly for Upright Neck-Aligned Vaccination
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Solution Overview
Problem
Existing automatic vaccination devices for chicks cause stress to the animals, limit vaccination rates, and pose health risks to operators due to unnatural chick positioning, repetitive movements leading to musculoskeletal disorders, and asymmetrical design complicating use for right- or left-handed operators.
Innovation Solution
An automatic injection device with a guide element that aligns the bird's neck along a defined axis, ensuring precise subcutaneous injections by keeping the spine out of the needle's path and allowing symmetrical operation for both right- and left-handed users, featuring a movable needle and protective barriers to prevent accidental injuries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chick is positioned in a lying position in the injection area, then the injection can be administered, but the chick experiences stress and the operator develops musculoskeletal disorders due to repetitive movements
Solution Approach 1:
The device inverts the conventional lying-position injection approach by enabling the chick to be positioned in an upright standing position. The guide element and injection area are configured so the chick stands on its feet with its head in the injection area, reversing the natural positioning and eliminating the need for operators to repeatedly handle and position chicks in unnatural lying positions, thereby preventing musculoskeletal disorders and reducing chick stress.
Solution Approach 2:
The device enables self-positioning of the chick through the guide element that directs the chick into the correct upright position automatically. The chick's own body weight and movement guide it into the proper stance, eliminating the need for operator manipulation and repetitive handling motions that cause MSDs.
2Device complexity
If the device allows chick presentation from only one side, then the injection area is simplified, but the number of chicks processed per time is limited
Solution Approach 1:
The device achieves multi-functionality by configuring the injection area and guide element to accept chicks from multiple directions (both sides of the device). The symmetrical or multi-access design of the guide element allows right-handed and left-handed operators to present chicks from either side, making the device versatile and increasing throughput without complicating the core injection mechanism.
3Measurement precision
If the injection needle moves along an axis parallel to the base surface, then the injection precision is improved, but the needle may still pose injury risks without proper positioning constraints
Solution Approach 1:
The device applies local quality by creating a specific exclusion zone around the guide axis where the needle is prohibited from penetrating. This localized spatial constraint, combined with the guide element's positioning of the chick's neck along the guide axis, ensures the needle only accesses the intended injection site (subcutaneous tissue) while automatically avoiding deeper structures like the spine, thereby maintaining precision while eliminating injury risks.
Solution Approach 2:
The guide element acts as an intermediary between the needle and the chick's body. It positions the chick's neck along the guide axis and defines the exclusion zone, serving as a mediator that guides the needle along a safe path parallel to the base surface, ensuring accurate subcutaneous injection while preventing deep penetration injuries.
Data Source
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AI summary
The present invention relates to a device for injecting fluid into a bird, the device having a main body (11), which comprises an injection assembly comprising an injection needle and at least one syringe, the needle being movable between a retracted position and an injecting position located in an injection zone positioned outside the main body (11). According to the invention, said device comprises: - a guide element (12) positioned on an exterior surface of the main body (11), the guide element (12) comprising a base (13) and side edges (14) extending from said base, at least the upper part of the back of the bird to be vaccinated being intended to rest against said base (13) and to be moved, head first, along a guide axis (15) defined by the guide element (12), to the injecting position, - the guide element (12) being additionally configured to keep at least the neck of the bird aligned or substantially aligned along said guide axis (15) in the injection zone - the injection needle being arranged such that when it is moved between the retracted and injecting positions, it moves along an axis of movement parallel to the exterior surface of the base, or at an angle relative to said exterior surface, said axis of movement extending, away from the main body, beyond an exclusion zone surrounding the guide axis (15).