RU7847U1 - DEVICE FOR DETERMINING PAIN SENSITIVITY OF THE Mucous membrane of the oral cavity - Google Patents

Abstract

A device for determining the pain sensitivity of the mucous membrane of the oral cavity, consisting of a cylindrical hollow stop with a sensitivity sensor installed in the stop with the possibility of longitudinal movements, different from the device for determining tactile sensitivity in that the sensor for improving the accuracy of the study is made in the form of a needle equipped with a ring opposite to the worker, interchangeable weights.

Description

DEVICE FOR DETERMINING PAIN SENSITIVITY OF MUSCULOUS MOUTH

The useful model relates to the field of medical technology, and in particular to research instruments in orthopedic dentistry.

To determine the sensitivity of various parts of the oral cavity to pressure, esthesiometers are used. The results of these studies are used to construct rational dentures and orthodontic appliances, as well as in research work (nanomeri to determine the effect of a particular general pathology on the sensitivity of the oral mucosa). Practice has shown the need to determine the limits of sensation of pressure. The lower limit is called tactile sensitivity, has a dimension of mg / mm with a range of 20 ... 125 Ohm / mm and is determined using a V.A. Khvatova instrument, and the upper limit - pain sensitivity has a dimension of g / mm with a range of 10 ... 75 g / mm and is determined using an esthesiometer E.S. Iroshnikova and A.I. Doinikova (for a description of the instruments, see Kurlandsky V.Yu. et al. // Research Methods in Orthopedic Dentistry: T., Medicine, 1973. - 231 p. ) For a significant number of instruments and devices for determining tactile sensitivity (Frey device, 1926; P.G. Ryazanova, 1954; V.A. Khvatova, 1969 and others), there are very few devices for determining pain sensitivity. Less than the esthesiometer E.S. Iropshikova and A.I. Doinikova is limited, since during operation the device must be turned through an angle of 90 °, which is inconvenient for the researcher’s hand to work unevenly, which reduces the measurement accuracy. The specified device is not manufactured by the industry, its manufacture is complicated and requires additional equipment. Pain sensitivity is also investigated by applying injections with a needle. The degree of pain is determined depending on the strength and depth of injection. This method is not accurate, since it is difficult to dose the strength and depth of injection in the study.

The problem is solved in that in the well-known instrument of P.G. Ryazanov for determining tactile sensitivity, which consists of a cylindrical zero unor and flexible bristles of different weights with a freely hanging end, acting as a sensor, the sensor-bristle is replaced. The sensitivity sensor, mounted in an emphasis with the possibility of longitudinal displacements, is made in the form of a needle, equipped at the end opposite to the worker with interchangeable weights. Summing up the weight of the needle and the weights, we obtain the threshold of pain sensitivity at the studied point.

Additionally, the essence of the proposed model is illustrated by a graphic image (Fig. 1).

The device for determining pain sensitivity contains a stop cylinder (for example, made of metal) (1), 4 cm high and 8 mm in diameter. At the ends of the cylinder (2) there are holes (3) with a diameter of 2 mm. Through which an injection needle (4) with a diameter freely passes 0.4 mm. with cannula (5). A pin (6) is pressed into the latter, onto which round-shaped weights are mounted with a hole in the center (7). These weights and allow you to adjust the load on the end of the needle.

The device is used in the following manner: the subject is placed on a medical couch. The device is placed at the same time perpendicular to the gingival mucosa and the focus falls down on. When the free tip of the needle comes into contact with the lamellar, a pressure occurs equal to the weight of the injection needle, pin and weights set by us. The force of pressure of the needle on the mucosa does not depend on the pressure of the researcher. Weight is selected to the pain sensation of the subject. Even with a non-perpendicular direction of the needle, the pressure force cannot change. With this technique, the friction of the needle is negligible and also constant .-; .

The design of dentures is constantly being improved. This process is closely related to the diagnosis of the sensitivity of the surfaces of the oral cavity associated with the prosthesis to pressure. This indicates the promise of work aimed at improving the available devices for this purpose. The proposed device is simple to operate, does not require material costs and is available in manufacture, it is enough

informative in the study of pain sensitivity of the mucous membrane of the jaw gums from the vestibular side.

AUTHORS: .V. Stru.

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V.M.Semenyuk K.K. Yakovlev. V. Redkin. P. Ongoev P. A. Ongoev

Claims (1)

A device for determining the pain sensitivity of the mucous membrane of the oral cavity, consisting of a cylindrical hollow stop with a sensitivity sensor installed in the stop with the possibility of longitudinal movements, different from the device for determining tactile sensitivity in that the sensor for improving the accuracy of the study is made in the form of a needle equipped with a ring opposite to the worker, interchangeable weights.