RU190708U1 - DEVICE FOR MEASURING THE AREA OF THE SKIN DEFECT AND DEPTH OF WOUNDS - Google Patents

Abstract

The invention relates to the field of medicine. The purpose of the utility model is to measure the area and relief of the skin defect and the depth of the wound. The device contains a metal housing matrix and movable metal rods. The rods are graduated with an interval of 1 mm. The matrix consists of two plates that are displaced relative to each other and have through holes. In the working position, the rods move freely through the through holes of the matrix and fill the entire space of the skin defect to be measured. The immobility of the rods is created by displacing the plates of the matrix relative to each other using two side screws, whereby the rods are tightly clamped. Then - to measure the area of the skin defect - it is necessary to calculate the number of displaced rods (n) and substitute the value in the formula S = 17.9 × n (mm). And to assess the depth of the wound, it is necessary to measure how much the rods have shifted, using graduation on the rods.

Description

The invention relates to the field of medicine, and more specifically to medical technology, namely, devices for measuring the area of the skin defect and the depth of the wound.

A classic planimetric method is known for measuring the area of a wound defect: a sterile plate of polyethylene is placed on the wound and the contours of the wound are applied to it. The drawing is transferred onto graph paper and the wound area is calculated. [one]. The disadvantages of this method are: the need to sterilize polyethylene, the contamination of millimeter paper with biological material, the inability to estimate the depth of the wound.

A classic method for measuring the area of a wound using an odometer and a special formula [2] is described. The disadvantages of this technique include: the impossibility of assessing the depth of the wound, the inaccuracy of the results in the presence of wounds of irregular shape, special requirements for the sterilization of the working part of the odometer.

A device for determining the area of the wound surface, consisting of a light source with lined squares transparent nozzle [3]. A disadvantage of this device is the need for regular calibration, the complexity, the inability to determine the depth of the wound.

The known method is implemented by photographing an analog camera wounds with a grid, 1 cm of which consists of 25 squares [4]. The disadvantages of this method are: contact of the wound with the measuring grid, time-consuming process of calculating the area, the impossibility of determining the depth of the wound.

The known method photoplanimetry [5]. The disadvantages of this technique are: the need to use a digital camera and a personal computer, the time-consuming process of photo editing and area calculation.

The method of computer planimetry is described [6]. The disadvantages of the method are the need to use a personal computer, a scanner and licensed software.

The known method of photoplanimetry using specialized software [7]. Disadvantages: the need to use a mobile device, software, the inability to determine the depth of the wound.

The purpose of creating a utility model is to measure the area of the skin defect and the depth of the wound. A comparison of the proposed device with others known in the field of medicine has shown its compliance with the criteria of the utility model.

The device contains a stationary metal housing matrix (Fig. 1-1) and movable metal rods (Fig. 1-2). The matrix consists of the upper (Fig. 1-5) and lower (Fig. 1-6) plates. The top plate on three sides is provided with grooves into which the bottom plate is inserted, and 169 round through holes with a diameter of 2 mm., Which are arranged in the form of a 13 × 13 square. The bottom plate is also provided with 169 through holes (Fig. 3-7) with a diameter of 2 mm, which are similarly located, but have a teardrop shape. The rods move freely through the holes through both plates of the matrix. Each rod has a sharp working end (Fig. 1-3), and a blunt, thickened end (Fig. 1-4). Rod length 70 mm, diameter 2 mm. In order that the core does not fall out of the hole of the matrix completely, the diameter of its thickened end is larger, and is 2.2 mm. All rods on the side surface are graduated with an interval of 1 mm. The distance between the rods is 2 mm. Inside the matrix housing there are two screws (Fig. 2-8) for sliding the plates of the matrix relative to each other and fixing the rods in the through holes.

The utility model is illustrated with graphic material. In Fig. 1 and Fig. 2 shows an isometric model of the device in the initial position. In Fig. 3 separately shows the lower plate of the matrix.

The device is used as follows. After the necessary sanitization, the device is applied to the skin defect under examination so that the rods cover the entire surface of the skin. Under the influence of gravity, part of the rods falls below the others, touching the bottom of the wound defect. In order to be able to calculate the measurement results, the rods are fixed inside the matrix. To do this, it is necessary to tighten the 2 side screws inside the case, while the plates are slightly displaced relative to each other and the rods are locked inside the tear-shaped holes. To measure the area of the skin defect, it is necessary to calculate the number of displaced rods (n) and substitute the value in the formula S = 17.9 × n (mm ² ). To assess the depth of the wound, it is necessary to measure how much the rods have shifted using graduation on the rods. In order to bring the device back to its working position, it is necessary to loosen the screws.

Information sources

1. Kuzin M.I., Kostyugenok B.M. Wounds and wound infection. - M .: - Medicine. - 1981. - 688. - p. 174.

2. Kuzin M.I., Kostyugenok B.M. Wounds and wound infection. - M .: - Medicine. - 1981. - 688. - p. 175

3. Patent of the Republic of Belarus No. 3460 of 03/01/2007

4. Bezugla, E.P., Belov S.G., Gunko V.G., Datsenko B.M. Theory and practice of local treatment of purulent wounds. - Kiev: Health. - 1995. - 383. - p. 64.

5. Patent RU 2301626 dated 11/17/2005.

6. Bogdaniec L.I. Abstract of thesis for the degree of Doctor of Medical Sciences: strategy and tactics of treatment of venous ulcers of venous genesis. - M: - 2008. - c. 45.

7. Bezrukova M.A. Abstract of thesis for the degree of candidate of medical sciences: the use of biological products in the treatment of chronic wounds in patients with neuropathic form of diabetes. - Samara. - 2017. - p. 137.

Claims (1)

Device for measuring the area of the skin defect and the depth of the wound, characterized in that it includes a metal body-matrix, consisting of two plates with through holes, movable metal rods, two side screws located inside the body of the matrix; at the same time, the upper plate has through circular holes, is provided with grooves on three sides, into which the lower plate is inserted, and the holes of the lower plate have a teardrop shape and are arranged similarly to the holes of the upper plate; the rods have a graduation, a sharp working end and a blunt, thickened end with a diameter greater than the diameter of the die holes; and the screws are made with the possibility of displacement of the plates of the matrix relative to each other for fixed fixation of the rods, and the movable metal rods are made with the possibility of free movement through the through holes of the matrix and fill the entire space of the skin defect being measured due to gravity.

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