RU172475U1 - Device for securing cargo to small laboratory animals - Google Patents

Abstract

The utility model relates to medicine and is intended for fastening weighting loads to small laboratory animals in tests that allow to determine the effect of a drug on the physical performance of the body. The product has several functional parts: a fastening lock, loops for paws of an animal, a fastening tab with transverse protrusions, a universal eye for cargo. The bottom of the product is smooth, made entirely in one technological process. Initially, a flat product is conveniently taken in the hand, a laboratory animal is taken in the other hand, then the front legs of the animal are threaded into loops, the product is wrapped around the animal and fixed in the lock with the tongue, which should be located on the back of the animal. Further, it is possible to tighten the tongue to ensure reliable fixation of fasteners on the animal. A load is attached to the eye through the hole. The device allows to obtain adequate performance indicators of animals, reduce the morbidity of the cargo securing procedure and its consequences, reduce material costs for the experiment. 2 ill.

Description

The utility model relates to medicine, in particular to experimental pharmacology, is applicable in the study of new drugs and is intended for fastening weighting loads to small laboratory animals in tests that allow to determine the effect of the drug on the physical performance of the body.

The closest to the objectives of the experiment are methods of securing the cargo with a pin in the sacral region or with an elastic band in the animal’s stomach / tail [Karkishchenko NN, Uyba VV, Karkishchenko VN, Shustov EB Essays on sports pharmacology. Volume 1. Vectors of extrapolation / edited by N.N. Karkishchenko and V.V. Uyba. Moscow, St. Petersburg: Ice, 2013, p. 126].

As shown by the practice of working with existing methods of fixation, devices have several disadvantages.

A pin piercing causes severe stress in animals, which affects the reliability of the experiment and excludes the possibility of studying a number of drugs. The load is distributed unevenly, and the animal often begins to make rotational movements in the water due to the displacement of the center of gravity. Moreover, piercing in the sacral region is required to reduce trauma. Complications of infection at the puncture site are also possible.

In the case of using gum, squeezing and displacement of internal organs, as well as circulatory disturbances in the attachment area are possible, which negatively affects the conduct of the experiment. With prolonged experiments, damage to the skin and tissue necrosis due to local hypoxia are possible. At the same time, if the gum is not tightened, it is very likely that it will fall with the load.

Thus, existing devices increase the likelihood of unreliable results due to a decrease in the working capacity of animals due to latent injuries, uneven distribution of cargo and severe stress. Obviously injured animals can no longer take part in the experiment and require replacement, which increases the material costs of research. The experiments are accompanied by unjustified cruelty to animals.

The objective of the proposed solution: the creation of a device that allows you to obtain adequate indicators of the health of animals due to more reliable fastening and uniform load distribution, eliminating the possibility of inertial rotation. Reducing the morbidity of the load securing procedure and its consequences, reducing stress for the animal. Reducing the material costs of the experiment by reducing the required number of animals and the costs associated with their maintenance.

The problem is solved in that the device for securing the cargo to small laboratory animals in the form of a load securing device includes two loops for the animal’s paws, connected by an eye with a central hole for securing the cargo, and each loop is individually diametrically connected: one with a fastening lock ending a rectangular hole, the other with a fastening tab provided with transverse protrusions for interacting with the fastening lock, and the product itself is flexible, smoothly lying on the plane with the side to rest against tnom and performed entirely in a single technological process.

The problem is also solved by the fact that the device for securing the cargo to small laboratory animals is made by injection molding.

The problem is also solved by the fact that the device for securing the cargo to small laboratory animals is made by 3D printing.

No known devices for securing cargo to small laboratory animals, such as the proposed.

According to the results of the search, it was found that the claimed technical solution meets the criteria of the utility model "novelty, as well as" industrial applicability ".

In FIG. 1 shows a device for securing cargo on laboratory animals (mice, rats), a perspective view; in FIG. 2 shows a top view.

The product has several functional parts: 1 - a fastening lock, 2 - loops for the paws of an animal, 3 - a fastening tab with transverse protrusions, 4 - a universal eye for cargo. The bottom of the product is smooth, made entirely in one technological process.

Example. Fasteners are used as follows. Initially, a flat product is conveniently taken in the hand, a laboratory animal is taken by the scruff of the neck, then the front legs of the animal are threaded into loops 2, the product is wrapped with a smooth side around the animal and fixed in the lock 1 with tongue 3, which should be located on the back of the animal. Further, it is possible to tighten the tongue 3 to ensure reliable fixation of the fasteners on the animal. The load is attached to the ear 4 through the hole and the animal is lowered into the water. Injury and inertial rotation of animals during the experiments were not observed.

The lock works according to the following principle: the tab with the tabs 3 is inserted into the mounting hole of the lock 1 and can be stretched to the required distance with the required tightening force of the fasteners. In the opposite direction, the tongue cannot pass without destroying the structure.

Manufacturing technology. Due to the fact that the product is intended for a narrow consumption market, it is possible to produce it by individual methods. Products can be made using 3D printing using FDM (Fused Deposition Modeling) technology or injection molding. Mounts made for mice have a weight in the range of 0.3 to 0.6 grams, depending on the material.

Materials The following materials are suitable for the manufacture of the product: ABS (acrylonitrile butadiene styrene), HIPS (high impact polystyrene), PLA (polylactide) for 3D printing technology and polyethylene for casting technology.

Claims (3)

1. A device for securing cargo to small laboratory animals in the form of a cargo fixing product, characterized in that the fixing product includes two loops for the animal’s paws connected by an eye having a central hole for securing the cargo, while one loop is connected to a fastening lock ending in a rectangular a hole, the other with a fastening tab provided with transverse protrusions for interacting with the fastening lock, the product is made flexible and solid, smoothly lying on the plane with the side to fit to to the animal. 2. A device for securing cargo to small laboratory animals according to claim 1, characterized in that it is made by injection molding. 3. A device for securing cargo to small laboratory animals according to claim 1, characterized in that it is made by 3D printing.

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