RU223117U1 - Trainer for teaching basic surgical sutures - Google Patents

Abstract

The utility model relates to teaching aids that relate to clinical medicine, in particular in open and laparoscopic surgery. The technical result consists in an unlimited number of repetitions when using the simulator, a wide variety of injury simulations, and the possibility of using the simulator in a laparoscopic box. The specified technical results are achieved in a simulator for training in the application of basic surgical sutures, which contains simulators of tissues, organs and injuries, which are made of a single platinum-based silicone elastomer, consisting of a rubber base and a catalyst, simulating the mechanical properties of human soft tissues, while on the reverse The side of the simulator is covered with a coating to prevent sliding on the table, and simulators of tissues, organs and their damage are presented in the form of protrusions simulating cuts, a round hole in a thin-walled hemisphere, and two cylinders.

Description

The utility model relates to teaching aids that relate to clinical medicine, in particular in open and laparoscopic surgery.

From the prior art (RU 169921, priority dated: 12/01/2016, A61B 17/00) a simulator for mastering the technique of basic surgical skills is known. A simulator for mastering the technique of basic surgical skills contains a support platform consisting of three parts, one of which contains a reservoir with a silicone cushion fixed to the support platform, consisting of three layers simulating the skin, subcutaneous fatty tissue and a layer of muscle fibers, and two triangular faces forms made of plexiglass, imitating the edges of a surgical wound, between which are stretched silicone rods, fixed on clamps rigidly attached to the support platform, the other part of the platform contains a reservoir with silicone, which imitates the muscle layer with tendons and nerve fibers, the third part imitates an artery and vein , is made of two silicone tubes stretched over a support platform and fixed on both sides on blocks rigidly fixed to the platform, while layers of silicone imitating the skin, subcutaneous tissue and muscle fibers, as well as the muscle layer with tendons and nerve fibers, have color matching the real one. The technical result is the repeated application of known types of seams to the element while maintaining the feeling of the fabric under tension.

From the prior art (RU 208220, priority dated: 03/15/2021, A61B 17/00, G09B 23/28) a simulator for mastering the tendon suture technique is known. The simulator consists of a support platform, which is made of extruded polystyrene foam with a transparent silicone rod attached to it with slight tension at the ends, simulating a tendon. The technical result consists in developing the skill of applying a tendon suture.

The disadvantages of these analogues are: a limited number of repetitions during use, a small variety of injury simulations, and the inability to use the simulator in a laparoscopic box.

The technical problem solved by the claimed simulator is to increase efficiency when practicing practical skills in applying surgical sutures.

The technical result is to provide a variety of damage simulations.

The specified technical results are achieved in a simulator for training in the application of surgical sutures, including a platform and simulators of soft tissues of human organs, simulating the mechanical properties of soft tissues, while the simulator contains damage simulators in the form of elements for connecting with sutures, while the soft tissue simulators and damage simulators are made of a single platinum-based silicone elastomer consisting of a rubber base and a catalyst, the back of the platform is coated to prevent slipping, and the elements for seaming are protrusions simulating cuts, a round hole in a thin-walled hemisphere, two hollow cylinders and one hollow cylinder, surrounded by three projections.

An additional feature is that the height of the protrusions simulating cuts is 10 mm, and the width is from 2 to 10 mm.

The declared simulator is explained in graphic materials, where:

in fig. 1. – Top view of the simulator for learning to apply basic surgical sutures;

in fig. 2. – Side view of 1 simulator for training in applying basic surgical sutures;

in fig. 3. – Side view of 2 simulators for training in applying basic surgical sutures.

The specified technical result, in terms of an unlimited number of repetitions when using the simulator, consists in the use of a silicone elastomer, namely, it is made of platinum-based silicone, which is bioinert and consists of a rubber base and a catalyst.

The specified technical result, in terms of a wide variety of damage imitations, lies in the form of damage imitators: the depth of the cuts is 1 cm, the width of the cuts is from 2 to 10 mm, a round hole in a thin-walled hemisphere imitates the perforation of a hollow organ and sections of two closely spaced hollow cylinders - a disconnected vessel.

The specified technical result, in terms of the possibility of using the simulator in a laparoscopic box, is that the simulator has overall dimensions that allow it to be placed there and practice practical skills, and on the back of the simulator there is a coating to prevent slipping on the table.

The exercise machine is made of silicone elastomer; it does not react with weak acids and alkalis, solutions of salts, ammonia, ethyl alcohol and hydrogen peroxide, which allows cleaning and disinfection.

The material of the simulator creates the effect of elasticity of human soft tissues, which allows you to obtain the necessary tactile response when working with surgical instruments during the application of various types of intracorporeal and open sutures.

This simulator is designed to practice the technique of applying different types of sutures used in the comparison of soft tissues: simple interrupted, corrective simple interrupted, simple continuous, continuous U-shaped, U-shaped horizontal, Donati suture, Multanovsky suture, simple submersible, Lambert suture, immersion horizontal and immersion vertical seams. In addition, the simulator is designed to practice the application of purse-string and vascular sutures.

The sutured incision simulators are located in-depth and above the surface of the simulator. This structure makes it possible to practice different types of manipulations on one product. The simulator can be used to train open surgical sutures or placed in a laparoscopic ward to practice various intracorporeal suturing techniques.

Work with the simulator is carried out in a horizontal plane, on the outside there are elements of different levels of complexity for connection with seams, Fig. 1:

1 - two identical wide elements, the same height, located at an equal distance from each other throughout, located so that they represent sectors of two circles (internal and external), with a center at one point, with a sector angle of 80 degrees;

2 - two hollow cylinders, standing alone, arranged vertically, with the same wall thickness along the entire height and circumference, and the internal hole in the cylinders continues in the platform on which the cylinders are placed;

3 - a figure consisting of four elements: the central element is a vertically located hollow cylinder, with wide walls of the same thickness along the entire length and height, flattened so that its cut, perpendicular to the axis, has the appearance of an oval, and the internal hole in the cylinder continues in platform on which the cylinder is placed; the other three elements are protrusions in the form of strips of the same length and width and height among themselves, vertically located, the same in thickness and height as the first element, the stripes are equidistant from the first element, so that they follow its contours, forming, as it were, an outer cylinder , but with gaps between each other, gaps between 3 elements of different sizes;

4 - two parallel wide elements, the same width, length and height, with the same distance between them throughout;

5 - four parallel elements of the same width and length, external elements have a greater height in relation to the internal ones, external elements of the same height and internal elements of the same height, with a uniform distance between all elements throughout;

6 - two parallel wide elements, the same width and height, turned 90 degrees on the platform, with a uniform distance between them throughout the elements,

7 - a convex hemisphere with a round hole in the center, with a wall of small thickness.

The applied sutures, when practicing practical skills, do not leave significant damage on the surface of the simulator. You can make additional cuts yourself. Ease of transportation allows the simulator to be used permanently in a training room and in surgical departments of medical institutions.

Claims (2)

1. A simulator for training in the application of surgical sutures, including a platform and simulators of soft tissues of human organs, simulating the mechanical properties of soft tissues, characterized in that it contains damage simulators in the form of elements for connecting with sutures, while the soft tissue simulators and damage simulators are made of a single silicone platinum-based elastomer consisting of a rubber base and a catalyst, the back of the platform is coated to prevent slipping, and the elements for seaming are protrusions simulating cuts, a round hole in a thin-walled hemisphere, two hollow cylinders and one hollow cylinder surrounded by three protrusions. 2. The simulator according to claim 1, characterized in that the height of the protrusions simulating cuts is 10 mm, and the width is from 2 to 10 mm.