RU40581U1 - Larynx Diagnostic Device - Google Patents

Abstract

The device relates to medicine and is intended for use in the practice of otorhinolaryngology of the larynx. The task is to create a device that improves the accuracy, objectivity, efficiency and ease of diagnosis of the anatomical and functional state of the larynx. The problem is achieved in that, like the well-known, the inventive device contains a mirror mounted on a curved rod. The difference between the proposed device and the known one is that it additionally contains a color television camera and a lighting source, and also contains a plate with a handle that are connected to a curved rod using a mounting unit, which is also a mounting unit for a curved rod of a lighting source and a color television camera which is directly and feedback connected through a series-connected controller, a first interface, a second interface with a microcomputer.

Description

The device relates to medicine and is intended for use in the practice of otorhinolaryngology of the larynx.

A device for examining the larynx and the functional state of the vocal cords, consisting of a blade (spatula) and a handle directly connected at an angle to each other, and containing a lighting unit made in the form of a lamp, a flexible fiber and a power source [1].

The disadvantages of this device are low functionality due to the inability to inspect the investigated surface of the larynx in the direct and reverse (reflecting) light stream (since there is no mirror).

Closest to the proposed device in technical essence and the achieved result is a mirror for examination of the larynx, containing a mirror and a curved rod [2].

The disadvantages of the known device are, firstly, the inability to remove (read) color images of the surface of the studied internal organ that carry objective pathology information, and secondly, the inability to quickly (quickly) and accurately examine and diagnose the disease (there is no database of pathology and tools analysis), thirdly, there is no ease of use, due to the inability to control diagnostics using a computer and displaying information on a computer monitor. The noted disadvantages do not allow the widespread use of the known device in outpatient practice and surgery.

The task is to create a device that improves the accuracy, objectivity, efficiency and ease of diagnosis of the anatomical and functional state of the larynx.

The problem is achieved in that, like the well-known, the inventive device contains a mirror mounted on a curved rod.

The difference between the proposed device and the known one is that it additionally contains a color television camera and a lighting source, and also contains a plate with a handle that are connected to a curved rod using a mounting unit, which is also a mounting unit for a curved rod of a lighting source and a color television camera which is directly and feedback connected through a series-connected controller, a first interface, a second interface with a microcomputer.

In addition, the light source is fixed in the immediate vicinity of the lens of a color television camera.

In addition, the light source is installed with the possibility of rotation in the mounting unit to adjust the flow of light incident on the reflective surface of the mirror.

In addition, the camera is mounted with the possibility of horizontal movement along the optical axis of the device.

In addition, the camera is mounted with the possibility of rotation around the optical axis of the device.

In addition, the lighting source is made in the form of a wide-beam cold light source, for example, an LED.

In addition, the controller, the first interface, as well as the power source are located in the handle, while the outputs of the power source are connected to the light source, to a color television camera, the first interface and the controller.

In addition, the curved rod is removable and fastened to the plate so that it can be rotated with a mirror relative to the light source and camera lens.

In addition, the color television camera is equipped with a protective unit made, for example, of a transparent film to protect the camera lens from pollution.

Distinctive features of the proposed device from the above known, closest to it, is the introduction of a color television camera, a light source, a plate, a handle, a mounting unit, a controller, the first and second interfaces, a power source, a microcomputer.

Due to the presence of these signs, the proposed device ensures uniform illumination using a wide-beam source of cold glow of the investigated surface of the internal organ of the larynx and reading a color image of the studied surface using a color television camera, inputting a color image into a computer, displaying the input image on a computer monitor, forming a database pathology of the investigated surface of the internal organ and diagnosis using a computer yep.

The proposed device is illustrated by the drawings shown in figure 1 and figure 2.

Figure 1 presents the assembly drawing of the proposed device.

Figure 2 is a structural diagram of the proposed device.

Figure 1 shows the design of part of the proposed device. Here, the mirror 1 is mounted on a curved rod 2, on which are fixed with

using the attachment unit 3, a color television camera 4 and a wide-beam cold light source 5. The attachment unit 3 is rigidly attached to the rod 2 with screws 6. Using the same attachment unit 3, the plate 7 with the handle 8 is connected to the curved rod 2. The attachment unit 3 is rigidly mounted on the plate 7. To perform the necessary adjustments, zooming in the read image, the color television camera 4 can move along the optical axis of the device (shown by horizontal arrows in figure 1). In addition, to perform other adjustments, the color television camera 4 can be rotated around its optical axis (shown by the circular arrows in figure 1, view AA). To exclude further movements of the color television camera 4, a latch (spring) 9 is used. In order to make the necessary adjustments (zooming out the read image of the color television camera 4), the mounting unit 3 can move along the optical axis of the device (shown in horizontal arrows in FIG. 1). The mirror 1 can be rotated together with the rod 2 (shown by circular arrows in figure 1). Such spreads are necessary for combining the light flux of a wide-beam cold-light source 5 with the reflecting surface of mirror 1 and the lens 10 of the color television camera 4. To eliminate unnecessary mutual turns of the color television camera 4 and mirror 1, the mounting unit 3 is fixed on the rod 2 with two screws 6. The movement of the mounting unit 3 along the rod 2 is carried out along the guides 11 and 12. In this case, the guide 12 is rigidly fixed (for example, by welding) on the plate 7. The mounting unit 3 contains a clamp 13, in which a color television camera is placed 4. The clamp 13 is attached to the plate 7 using a plate 14 and 2 screws 15. A wide-beam cold light source 5 is installed in the sleeve 16 and fixed by a screw 17 in the clip 13. The sleeve 16 can be rotated (adjustable) around the axis of the screw 17 with a screwdriver. For this, a screwdriver is inserted into the recess 18 and the recess of the cone of the sleeve 16. These turns of the sleeve 16 are shown by circular arrows in figure 1. The indicated turns of the sleeve 16 are necessary for adjusting the light flux from the wide-beam cold light source 5 to the reflecting surface of the mirror 1. The sleeve 16 is turned so that the angle between the optical axis of the wide-beam cold source 5 and the optical axis of the color television camera 4 changes in the vertical plane . Power source 19 is installed in the handle 8.

Figure 2 presents the structural diagram of the proposed device. The following relationships are shown here:

(⇒) - mechanical bonds;

(→) - electrical communications;

(---- →) - optical communications;

(- · - · →) - etheric link.

The output of the color television camera 4 is connected through a series-connected controller 20, the first interface 21 to the input of the microcomputer 22 containing the second interface 23. The output of the microcomputer 22 is connected by feedback through the second interface 23, the first interface 21, the controller 20 with the first input of the color television camera 4.

The following standard elements are used in the proposed device: a color television camera (KRS - S230C model: PAL / NTSC signal format; SJNY 1/3 '' SUPER YAD CCD photosensitive matrix; resolution of 380 TV lines; wide-beam cold light source: TXC-3 model LED , 6 / 0.04 (supply voltage 3.6 V; current consumption 4 ohms); first and second interfaces: BLUTOOTH of HEMICS brand НМ 1201А-Е433; microcomputer of NOTBOOK model; controller of ATI90S2343 brand.

The device operates as follows. Using a power source 19, a color television camera (with video capture) 4, a wide-beam cold light source 5, a controller 20 and a first interface (wireless transceiver) 21. The microcomputer 22 containing the second interface (wireless transceiver) 23 is separately turned on 23. After the power-on operation to work is characterized by the illumination of a wide-beam cold light source 5 and the resulting high-quality (clear) image on the monitor of the microcomputer 22. Color television Measure 4 and a widely diagrammed source of cold glow 5 are located in the mounting unit 3, which is simultaneously fixed on the rod 2 and the plate 7, rigidly connected with the handle 8. In the handle 8 is a power source 19. To prevent foreign matter from entering the lens 10, the body is colored a television camera 4 and a wide-beam cold-light source 5, a protective film is put on (polyethylene, cellophane, rubber), which is removed and disposed of after completion of work with the object of study. The specified application of the protective film allows not to disinfect the color television camera 4 (together with the lens 10) and a wide-beam source of cold glow 5 by boiling or using other aggressive media.

After turning on the color television camera (with video capture) 4, the wide-diagram cold light source 5, the controller 20, the first interface 21 and the microcomputer 22 together with the second interface 23 and provide the necessary adjustments (offsets and turns of the mirror 1, color television camera 4 and the wide-diagram source cold glow 5, shown in figure 1, the mirror 1, located on the rod 2, is inserted into the larynx of the patient (object of study). The light flux from the wide-beam source of cold glow 5 falls on the mirror 1, is reflected from it, arrives at the object of study (OI), is reflected from the OI, mirror 1 and falls on the lens 10 of the color television camera 4. Thus, an optical color image of the surface of the object of study is projected onto the lens 10 of the color television camera 4 This image is pre-stored by the controller 20, and then through the first interface (wireless transceiver) 21 and the second interface (wireless transceiver) 23 is entered into the memory of the microcomputer 22, which its reverse the language controls the operation of the second interface 23, the first interface 21, the controller 20 and sets the required parameters (brightness, color saturation) of the color television camera 4.

Color television images of the surface of the object of study are recorded in the memory (database) of computer 4. These images are called current images (TI) and characterize the pathology (changes) of the investigated surface of the internal organ of a person. Thus, a database of pathologies of the surface of the internal organs of a person is formed. TIs are compared with a reference image (HEY) characterizing the studied surface of the human internal organ without pathology and the required diagnostic parameters are evaluated.

The position and color of the zone of the investigated surface is estimated by analyzing the position and combination of the terms of the cross-correlation functions (VKF). In color recognition, the color of the zone “painted” in any tone is determined based on the following rule [3]:

_To C = l, when C _s = C _c = C _p = C _f = C _d = C _b = 0 or J _R = 1, J _G = J _B = 0;

C _z = l, with C _k = C _c = C _n = C _w = C _g = C _b = 0 or J _G = 1, J _R = J _B = 0;

_With C = l, with _k = C C _s = C _f = C _f = C _d = C _b = 0 or J _B = 1, J _R = J _G = 0;

C _p = l, when D _k = D _c = 1, U _z = U _x = U _g = U _b = 0 or J _R = J _B = 1, J _G = 0;

U _x = l, with _k = C C _s = 1, C _c = C _n = C _r = C _b = 0 or J _R = J _G = 1, J _B = 0;

C _r = l, when U _c = U _s = 1, _k = C _n C = C = C _{b x} = 0 or J _G = J _B = 1, J _R = 0;

C _b = l, with _k = U U U _s = _c = 1, C _n = C _x = C _z = 0 or _{J R = J G = J B} = 1,

where C _to , C _s , C _s , C _p , C _W , C _g , C _b - respectively the levels of red, green, blue, purple, yellow, blue, white,

J _R , J _G , J _B - respectively VKF, characterizing red, green and blue colors. Thus, by the combination of VKF J _R , J _G , J _B, you can determine any color of the area of the investigated surface.

The terms of the VKF are described by the following expressions [4]:

where F ₁ ^C (x ₁ , y ₂ ) is a function that describes the color TI (in the coordinate system X ₁ , O ₁ , Y ₁ );

F ₂ ^R (x ₂ , y ₂ ), F ₂ ^G (x ₂ , y ₂ ), F ₂ ^B (x ₂ , y ₂ ) - functions that describe HEY (in coordinate systems X ₂ ^R O ₂ ^R Y ₂ ^R , X ₂ ^G O ₂ ^G Y ₂ ^G , X ₂ ^B O ₂ ^B Y ₂ ^B ) passing respectively red R, green G and blue B color component;

K is the coefficient of proportionality.

The geometric characteristics of the zones of the studied surface are determined by the following well-known expressions [4].

X _C , Y _C - coordinates of the center of gravity of the structural element of the image area;

ΔM _KX , ΔM _KY - elementary moments in the direction of the corresponding axes;

N _K is the number of points (pixel) in the circuit;

i is the circuit number;

S _SE - the area of the structural element of the image area, limited by the contour;

K _f - coefficient of form;

P is the perimeter of the circuit.

The area S of the _{solar cell} and the parameter P of the structural element is determined bypassing the zone circuit. After obtaining the necessary information, the current and reference information (images) are compared.

Thus, the disease is diagnosed.

This completes one cycle of the device.

Compared with the known, the proposed device has a higher efficiency and accuracy of diagnosis, ease of use. Indeed, since the reference television images of the surface of the object of study (i.e., HEY) are stored in the device’s database and they are automatically compared with readable images (i.e., TI) that reflect the pathology of the internal organ, a disease diagnosis is established. This happens quickly (promptly) and accurately (using a computer). In addition, the necessary information - TI and HEY images, diagnostic results are displayed on a computer monitor, which indicates the convenience of working with the proposed device.

Sources of information:

1. RF patent No. 2030898 C 1, 1995

2. Technical description. Miass: CJSC Scientific-Production Enterprise MEDICON, 2003. - 3 p. http: www.miass.chel.su/~medicon.

3. Nikitina Yu.A., Syryamkin V.I., Titov B.C. Features of color image processing in television vision systems. - Tomsk, 1991 .-- 36 p. - Dep. VINITI 05.08.91, No. 3335 - V 91.

4. Syryamkin V.I. and other Systems of technical vision: Reference. Tomsk: MGP "RASCO", 1992. - 367 p.

Claims (9)

1. Device for the diagnosis of the larynx, containing a mirror mounted on a curved rod, characterized in that it further comprises a color television camera and a light source, and also contains a plate with a handle that are connected to the curved rod using a mounting unit, which is also a block fastenings to a curved rod of a light source and a color television camera, which is directly and feedback connected through a series-connected controller, the first interface, the second interface with ikrokompyuterom. 2. The device according to claim 1, characterized in that the light source is fixed in the immediate vicinity of the lens of a color television camera. 3. The device according to claim 1, characterized in that the light source is mounted with the possibility of rotation in the mounting unit for adjusting the flow of light incident on the reflective surface of the mirror. 4. The device according to claim 1, characterized in that the camera is mounted with the possibility of horizontal movement along the optical axis of the device. 5. The device according to claim 1, characterized in that the camera is mounted with the possibility of its rotation around the optical axis of the device. 6. The device according to claim 1, characterized in that the light source is made in the form of a wide-beam source of cold glow, for example an LED. 7. The device according to claim 1, characterized in that the controller, the first interface, as well as the power source are located in the handle, while the outputs of the power source are connected to the light source, to a color television camera, the first interface and the controller. 8. The device according to claim 1, characterized in that the curved rod is removable and fastened to the plate so that it can be rotated with a mirror relative to the light source and camera lens. 9. The device according to claim 1, characterized in that the color television camera is equipped with a protective unit made, for example, of a transparent film to protect the camera lens from pollution.