RU165889U1 - VISUALIZATION DEVICE FOR VENOUS BLOOD - Google Patents

Abstract

The proposed technical solution relates to medicine, namely to devices and complexes for visualization and analysis of saphenous veins and can be used in various areas of medicine, such as phlebology, dermatology, cosmetology, pediatrics, etc. The technical result is to increase contrast, image quality, convenience and ease of operation, comfortable perception of information received by the user, the use of multimedia capabilities during operation. The device is made in the form of structurally articulated tablet computer 1 and a video module formed from a housing 2 with a board 4 on which a television camera 5 and N of sources 6 of blue and near infrared radiation are located, while the optical axis of the television camera 5 coincides with the center of the screen of the tablet computer 1.2 ill.

Description

The proposed technical solution relates to medicine, namely to devices and complexes for visualization and analysis of saphenous veins and can be used in various areas of medicine, such as phlebology, dermatology, cosmetology, pediatrics, etc.

A device for visualizing the blood flow of saphenous veins (Glasses Eyes-on, www.evenamed.com), consisting of two television cameras and two sources of infrared radiation, built into glasses with translucent displays for each eye, as well as a separate computing device with a power source, fixed on the waist belt.

The disadvantages of the known devices include:

- the difficulty of working with glasses whose weight exceeds 150 g;

- rapid eye fatigue;

- lack of operational management of visualization modes;

- difficulty visual contact with the patient.

There is another device for visualizing venous blood flow (Vein Viever Vision, www.christiemed.com), performed both in stationary and mobile versions, consisting of an IR radiation source, a television camera, a computer, and a projector projecting an image of venous blood flow directly onto the limb under study. The distance between the test limb and the projector lens is set by a special rod (probe), which is part of the device.

The disadvantages of the device are:

- the need to accurately maintain the distance from the device to the test limb, as well as its angle of inclination with respect to the surface onto which the image is projected;

- low accuracy of the design pattern matching with the actual location of the veins, which is critical (unacceptable) for small diameter veins.

Closest to the claimed technical solution is a device for visualizing venous blood flow (RF patent No. 38569, priority 03/17/2004), consisting of a source of near-infrared radiation, an optical system, a receiving system that is sensitive to the infrared range and is a television camera connected to the monitor.

The disadvantages of the known device are:

- uneven illumination (illumination) of the studied limb and, as a result, low quality of the formed image of venous blood flow;

- lack of computing capabilities to improve the image;

- lack of network and multimedia capabilities.

The aim of the proposed solution is to create a device devoid of the above disadvantages.

The technical result is an increase in contrast, image quality, convenience and ease of use, comfortable perception of information received by the user, the use of multimedia capabilities during operation.

This is achieved by the fact that the device for visualizing venous blood flow is characterized in that it is made in the form of a structurally articulated tablet computer and a video module formed from a housing with a board on which a television camera and N sources of near-infrared and blue radiation are located, while the optical axis of the television camera coincides with the center of the screen of the tablet computer.

The essence of the utility model is illustrated by drawings, where

- in FIG. 1 shows a general view of a device for visualizing venous blood flow;

- in FIG. 2 - assembly drawing of the device.

A specific embodiment of a device for visualizing venous blood flow.

The device for visualizing venous blood flow is made in the form of a structurally connected tablet computer 1 and a video module formed from a housing 2 with a convenient rubberized handle 3, a textolite board 4, on which a television camera 5 and three LED radiation sources 6 (in this embodiment, the device) are located with blue and IR LED. High display quality is achieved not only by the quality of the television camera 5, but also by the optimal arrangement of three LED radiation sources 6 - at the vertices of an isosceles triangle, in the center of which there is a television camera 5, providing uniform illumination of the observation object. In this case, the optical axis of the television camera 5 coincides with the center of the screen of the tablet computer 1.

To increase unification, the device provides for mounting 7 on a tripod, which allows hands to be released to a medical worker operating this device. The use of cast housing 2 makes it possible to reduce the number of component parts of the device, which, in turn, significantly reduces the cost of manufacturing the product. The video module is structurally mounted on the tablet computer 1 on the principle of "cover", without limiting the functionality of the latter.

As a signal output bus, a short wire 8 with a mini-USB connector connected to tablet computer 1 is used. Tablet computer 1 with preinstalled software significantly expands the functions of the device, making it possible:

- to receive "in real time" a high-quality contrasting image, undistorted and unbiased, which is achieved by the fact that the television camera is located under the center of the tablet computer screen, and not offset to the edge, like a regular tablet computer camera;

- analyze, process, save, send the received information to the user;

- use the rest of the multimedia capabilities of the tablet computer without removing the image forming device.

The device operates as follows.

The device is located in the hands of a medical professional or on a tripod immediately in front of the studied area of the human body at a distance of 15-50 mm. After starting the corresponding program on the tablet and turning on the backlight, the screen displays the studied area with clearly defined blood vessels, the minimum size of which can reach 1 mm. During operation, the backlight is powered by the battery located in the device, thus, the battery life is increased.

Such a constructive solution allows non-invasive imaging and analysis of the vascular bed of the limbs, saphenous veins, helps in the injection, diagnosis of valvular insufficiency of superficial veins, the diagnosis of thrombosis and other medical purposes, as well as in work with children, black patients, patients with blood loss, patients with hypotension, elderly patients, etc.

It is possible to manufacture the device with a different number of radiation sources. A smaller number of radiation sources (when using LEDs) leads to the formation of uneven lighting, and a larger number gives a disproportionately small increase in illumination compared to power consumption. The implementation of the device with three sources of blue and infrared radiation is optimal at the present time.

Claims (1)

A device for visualizing venous blood flow, characterized in that it is made in the form of a structurally articulated tablet computer and a video module formed from a case with a board on which a television camera and three sources of radiation of blue and near IR ranges are located, while the optical axis of the television camera coincides with the center of the screen tablet computer.

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