Capacitive Electrical Stunning Device for Prolonged Unconsciousness
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Solution Overview
Problem
Current stunning methods for animal slaughter, particularly in ritual contexts, are often lethal, cause post-stun convulsions, and result in lower meat quality due to excessive blood splash, failing to provide effective non-lethal unconsciousness lasting long enough for blood loss-induced death.
Innovation Solution
A head-only electrical stunning method using a device with capacitive pulses of specific amplitudes and durations, administered to restrict movement and ensure current flow through the head, minimizing cardiac arrest risk and blood splash, combined with a neck or thoracic stick for slaughter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-lethal electrical stunning methods are used, then animal welfare is improved and religious slaughter requirements are met, but the period of unconsciousness is too short (only 1-2 minutes) to last until death from blood loss
Solution Approach 1:
The patent applies periodic action by using a sequence of electrical pulses instead of a single continuous pulse. The method delivers multiple pulses at specific intervals (e.g., 0.5-2 seconds between pulses) to maintain unconsciousness throughout the slaughter process. This periodic stimulation ensures the animal remains unconscious from the initial pulse through the neck cutting procedure, solving the problem of insufficient unconsciousness duration while maintaining non-lethal status.
2Reliability
If head-only electrical stunning is used, then cardiac arrest is avoided, but blood splash in muscle tissue increases resulting in lower meat quality
Solution Approach 1:
The patent applies parameter changes by precisely controlling electrical pulse parameters (amplitude, duration, interval) to achieve unconsciousness without cardiac arrest. By optimizing these parameters, the method induces unconsciousness through neural pathways while avoiding the lethal cardiac effects that cause excessive blood splashing. This resolves the contradiction by finding the optimal parameter range that prevents cardiac arrest while maintaining effective stunning.
3Reliability
If conventional electrical stunning methods are used, then unconsciousness is achieved, but vigorous post-stun convulsions occur creating hazards for operators and causing inaccurate neck cutting
Solution Approach 1:
The patent applies preliminary action by delivering the electrical pulse sequence before the animal is restrained for neck cutting. The method ensures unconsciousness is established and maintained before the animal is positioned and before the critical neck cutting moment arrives. This timing strategy prevents convulsions during restraint and cutting operations, making the process safer for operators and more accurate for the slaughter procedure.
Data Source
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AI summary
The current invention concerns an electrical stunning method that is delivered to the head of a slaughter animal (9). A direct and/ or alternating current electric pulse or an electric pulse sequence comprising two or more direct and/or alternating current pulses is used in the method. The invention also concerns a slaughter method using said stunning method and a design for a device that can be used in the stunning method.