RU128982U1 - DEVICE FOR STANDARDIZED DAMAGE ON THE TENDON - Google Patents

Abstract

A device for applying standardized damage to tendons, characterized in that it consists of a base with a fixing hook attached to it, a platform is attached to the base, to which a blade and a cylinder with a tablet are mounted, on which graduation is made of graph paper, there is a spring inside the cylinder, connected to the piston, consisting of a base, an axis and a handle, and the piston, in turn, is connected to the base by a fixed unit with a guide for the piston.

Description

The utility model relates to medicine, namely to traumatology and orthopedics, and experimental surgery, can be used to apply standardized damage to tendons, in experimental studies, also with the aim of developing methods of joining and teaching methods of joining damaged tendons.

A device is known, “Patent No. 78058, used in forensic medicine for causing experimental damage.” However, the disadvantage of this device is that it:

- difficult and expensive in design.

- It is not possible to use in the operating room due to the large size.

- a long time from the moment the injured object is fixed to the results (up to 10 minutes), which is not acceptable under the experimental conditions (for experimental application and modeling of standardized tendon injuries in animals).

The technical result of the utility model is the application and modeling of standardized tendon injuries in an experiment by using blades and different acting forces at the point of application.

The technical result is ensured by the fact that the proposed utility model consists of a base with a fixing hook attached to it, a platform is attached to the base, to which a blade and a cylinder with a tablet are mounted, on which graduation is made of graph paper; inside the cylinder there is a spring connected to a piston consisting of a base, an axis and a handle, and the piston, in turn, is connected to the base by a fixed unit with a piston guide.

The utility model is illustrated by the figures:

- figure 1 presents a view from the side.

- figure 2 presents a top view.

- figure 3 presents a front view.

A device for applying standardized damage to tendons, characterized in that it consists of a base - 1 with a fixing hook attached to it - 9, also a platform - 2 is attached to the base, to which a blade - 3 and a cylinder - 4 with a tablet - 8 are attached, on which applied graduation from graph paper; inside the cylinder there is a spring - 5, connected to the piston - 6, consisting of a base - 6.1, an axis - 6.2 and a handle - 6.3, and the piston, in turn, is connected to the base by a fixed assembly - 7.2 with a guide for the piston - 7.1 (7).

The utility model works as follows:

The tendon will be damaged due to the fact that when pressure is applied to the piston, the spring exerts pressure on the cylinder, as a result of which the platform and the cylinder move with the blade, which are fixedly connected to it. All these parts will move relative to the base and hook, which are motionlessly interconnected. The blade will inflict the necessary damage to the tendon fixed in the hook, which in turn will depend on the force applied. It is possible to use different types of blades and springs, suitable in size, due to their ability to replace, to receive damage of a different type in the tendon fixed in the hook. On a tablet with a graduation from graph paper, it can be noted how much the spring was compressed, thereby it is possible to accurately apply standardized damage to different tendons with the same application force on the point of its impact.

An example of a specific implementation:

For damage, we used a utility model for standardized damage to tendons.

The experiments were performed on 5 healthy sexually mature dogs, weighing 8-10 kg.

The studies were carried out in compliance with the principles set forth in the Convention for the Protection of Vertebrate Animals used for experimental and other purposes (Strasbourg, France, 1986).

The experiment was performed under general anesthesia as follows.

- made an incision in the Achilles tendon;

- layered tendon;

- using a device for applying standardized damage, the tendon was fixed and the tendon was damaged in character and strength;

- on a tablet with a graduation from graph paper, we made a note about the force we applied (how much the spring was compressed);

- on all 5 dogs we received injuries of the Achilles tendon that were absolutely identical in nature and applied force.

After applying standardized lesions and comparing the results, the Achilles tendon was stitched together with a seam according to Rozov and the layers of soft tissue stitched together.

Thus, this useful model for applying standardized damage to tendons allows you to apply and model standardized damage to tendons in an experiment by using blades and different acting forces at the point of application.

Using the proposed utility model allows to solve a number of problems:

1. get injuries on the tendons of a different nature.

2. Get standardized tendon damage.

3. get damaged on different tendons with the same applied force.

4. simulate tendon damage in an experimental setting.

Claims (1)

A device for applying standardized damage to tendons, characterized in that it consists of a base with a fixing hook attached to it, a platform is attached to the base, to which a blade and a cylinder with a tablet are mounted, on which graduation is made of graph paper, there is a spring inside the cylinder, connected to the piston, consisting of a base, an axis and a handle, and the piston, in turn, is connected to the base by a fixed unit with a guide for the piston.

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