A device for collecting cysts of fish parasites

By designing a fish parasite cyst collection device with a multi-stage filter cartridge and mesh structure, the problem of low cyst collection efficiency in existing technologies has been solved, achieving efficient and convenient cyst collection and an environmentally friendly cleaning process.

CN224440076UActive Publication Date: 2026-07-03NINGBO UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO UNIV
Filing Date
2025-08-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies make it difficult to efficiently collect cysts of fish parasites, especially Cryptocaryon irritans cysts, leading to high infection mortality rates. Furthermore, existing filtration methods are inefficient and easily trap impurities such as fish scales.

Method used

Design a cyst collection device for fish parasites, including a multi-stage filter cartridge and a mesh structure. It achieves precise collection of cysts through gradient filtration, ensures the stability of the filter cartridge by the limiting cooperation of the annular protrusion and annular groove, and reduces manual intervention by a hydraulically driven cleaning device.

Benefits of technology

It improves the efficiency and convenience of cyst collection, reduces impurity retention, lowers the risk of infection, and achieves efficient cyst collection and an environmentally friendly cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a device for collecting cysts of fish parasites, comprising a primary filter cylinder, a primary mesh screen, a secondary filter cylinder, a secondary mesh screen, a tertiary filter cylinder, and a tertiary mesh screen, all detachably connected in sequence. The bottom of the primary filter cylinder is positioned and fitted with the top of the secondary filter cylinder, with the primary mesh screen positioned between them. The bottom of the secondary filter cylinder is positioned and fitted with the top of the tertiary filter cylinder, with the secondary mesh screen positioned between them. The tertiary filter cylinder is conical in shape, with a conical opening at its bottom. A lower cover is threadedly connected to the conical opening, and the lower cover has a filter outlet. The tertiary mesh screen is detachably installed between the conical opening and the filter outlet. The primary mesh screen is 20-30 mesh, the secondary mesh screen is 30-50 mesh, and the tertiary mesh screen is 100-150 mesh. The pond water is poured into the pond from the top of the primary filter cylinder and flows sequentially through the primary filter cylinder, primary mesh screen, secondary filter cylinder, secondary mesh screen, tertiary filter cylinder, and tertiary mesh screen, filtering out impurities such as fish scales and fish feces at each stage, and finally collecting the cysts, effectively improving collection efficiency.
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