RU53913U1 - DEVICE FOR VASCULAR IRRADIATION OF BLOOD BY OPTICAL RADIATION IN EMERGENCY SITUATIONS - Google Patents

Abstract

The utility model relates to medicine, namely to devices for conducting phototherapy in emergency situations.

The proposed device includes light-emitting devices, single-acting, each of which consists of an injection needle, in the lumen of which are placed: a quartz fiber coupled to the optical node-focon, and an LED emitting ultraviolet rays, red and blue light; located in the lid of the device and marked with a luminescent coating, as well as an autonomous power supply, a light panel and an electronic key mounted in the base of the device. The proposed device has the following advantages: the kit includes all the necessary components for emergency medical care; light-emitting devices are intended for single use with a given exposure time; the device allows the use of various spectra of optical radiation; the device itself, in connection with the introduction into the design of the optical assembly and the optical fiber located in the lumen of the needle, is effective in the sense of the return of the light flux into the bloodstream; the kit can be used for various pathologies due to the possibility of using different spectra of optical radiation; luminescent marking of a light-emitting device allows its error-free use in any conditions; the packaging case is also an electronic key for the light-emitting device, the marking of the light-emitting device allows you to determine at the next stage the type of phototherapy performed, the location of the light-emitting needles in a special case allows you to include it in

maintenance of a sanitary bag and a set of equipment for ambulance crews.

Description

The utility model relates to medicine, namely to devices for conducting phototherapy in emergency situations.

At present, in various fields of medicine, the method of hematotherapy is widely used - the effect on the patient's blood with extracorporeal or intravascular optical radiation (1). Including photohemotherapy methods have found their application in medicine in critical situations: acute poisoning, acute myocardial infarction, acute respiratory failure, septic and cardiogenic shock, compression syndrome, burns, hypoxia during blood loss, etc. (1, 2, 3). For this purpose, as a rule, inpatient treatment using lamp and laser light sources is used: apparatus for ultraviolet blood (Isolde, Hope), laser blood irradiation (Alok-1, Elok, Azor and other).

However, in medicine of critical (emergency) situations it is extremely important to provide assistance to the victim in the first minute, wherever he is: at home, in the field, during transportation to a specialized institution.

A known attempt to create a compact device for intravascular irradiation of blood, described in the monograph "Phototherapy" (1). It consists of a housing in which an LED coupled to a fiber optic is placed; Power is supplied by a lithium cell. For the procedure, the light guide is inserted into the vein through a catheter of a puncture needle.

However, the known device has disadvantages: 1) insufficient output power due to the lack of an optical node for input

optical radiation into the fiber, 2) the technical execution of the procedure is carried out in 3 stages: puncture of the vein, removal of the needle and then the introduction of the fiber into the vein through a catheter. In this connection, the use of this device in case of mass defeats in the conditions of technological disasters, military operations, etc. does not provide the ability to comply with the rules of asepsis and antiseptics and suggests a high risk of infection. In addition, the tip of the fiber can be broken off, which is a frequent complication even in stationary conditions. The technique of this procedure requires special training of medical personnel and its first use is possible only at a medical care point, during transportation in an ambulance with a specialized team, etc.

Closest to achieving the goal was the creation of a "light-emitting needle for single use" (4). The design of this device allows a single manipulation (only puncture of a vein), which makes it possible to use it on a mass scale in any acceptable conditions. The device consists of an intravenous needle and a blue light mounted in the housing of a light emitting diode; the needle’s lumen is filled with a light-conducting compound, the power is supplied by a miniature electric source, and a lens is also introduced into the device’s design.

It is assumed that when a needle is inserted into a blood vessel when the light source is on, light flux is transmitted through the light guide compound to the circulating blood. Unfortunately, this device also has several disadvantages:

1. due to the large angle of light emission by the LED, despite the presence of a lens, its transmission loss is more than 70%;

2. when light passes through the needle lumen filled with a light guide compound, further losses occur within 20-25% of the remaining light beam.

For these reasons, the output power is extremely low for phototherapy.

The purpose of the proposed utility model is to create a more advanced and efficient device for intravascular irradiation of blood with optical radiation in emergency situations. This is achieved by introducing an optical assembly into the device design, which allows concentrating (maximally introducing) the light flux and pairing it with an optical fiber introduced into the needle’s lumen, which practically avoids losses during the transmission of light from the source to its exit from the needle’s lumen. The needle in addition to its main purpose (puncture of a blood vessel) serves as a frame that protects the light guide from breakage. In addition, not only blue light emitting diodes were used, but also emitting UV rays and red light.

At the same time: UV radiation is effective for gunshot wounds, wound and septic shock, blood loss with hypoxia, acute poisoning; red light is effective for myocardial infarction, atrial fibrillation, cardiogenic shock; blue light has the most regulatory effect and is characterized by a slower effect, therefore, in critical situations it can be used much less frequently, for example, if the microcirculation is disturbed during compression syndrome, hypothermia.

Thus, the problem of choosing the radiation spectrum in the proposed device is solved by creating a set of three light-emitting devices (blue, red light, UV radiation).

A device for intravascular blood irradiation with optical radiation consists of (Fig. 1: A, B, C) a case with a hinged lid 2 and a base 1, in which an electronic key 3 and a light panel 4 with an autonomous power supply unit are mounted 5. The cover 2 of the case has sockets for light-emitting devices. Each of the light emitting devices 14 consists of a needle 6, in the lumen of which is a light guide from

quartz glass, paired with an optical node-foci 8 made of quartz glass. The optical node is located in the front of the cannula 9 of the needle, and the diameter of the front of the focone 8 corresponds to the diameter of the optical fiber 7 and is tightly coupled with it. Behind the fiber there is a light emitting diode 10 and a miniature power supply 11 with an electronic timer 12. The front emitting surface of the LED is polished, polished and tightly mated with the end part of the focone 8. A marking 13 is applied to the surface of the cannula 9 of the light emitting device 14 with luminescent paint, indicating the range of optical radiation . The needle is covered with a standard protective cap, which is also marked 13, and the entire device 14 in a sterile packaging is placed in the corresponding slot of the cover 2 of the case.

The device operates as follows.

The cover of the case is opened, and the light panel automatically lights up, which allows in any conditions, including in the dark, to determine the marking of the needle and, accordingly, its purpose by luminescence. Remove the packaging of the light-emitting device, touch the electronic key located on the base of the case with its end, remove the needle’s safety cap and insert it into the blood vessel in accordance with the rules of medical equipment. At the end of the procedure, the power source automatically shuts off. Subsequently, at the stages of medical care, the device is removed from the vessel and disposed of, while the marking of the light-emitting device is a "passport" indicating the range of optical radiation performed by phothemotherapy, which is important in the phased provision of medical care.

The proposed kit for intravascular blood irradiation with optical radiation in critical situations has the following advantages:

1. The kit includes all the necessary components for emergency medical care;

2. Light-emitting devices are intended for single use with a given exposure time;

3. devices allow the use of various spectra of optical radiation;

4. the device itself, in connection with the introduction of the optical assembly and the optical fiber located in the lumen of the needle into the design, is effective in the sense of the return of the light flux into the bloodstream;

5. The kit can be used for various pathologies due to the possibility of using different spectra of optical radiation;

6. Luminescent marking of the light-emitting device allows its error-free use in any conditions;

7. The packaging case is also an electronic key for the light-emitting device.

8. marking of the light-emitting device allows to determine at the next stage the type of phototherapy performed.

9. The presence of light-emitting needles in a special case allows you to include it in the contents of the sanitary bag and equipment kit for ambulance crews.

Thus, the difference between the proposed device from the known is:

1. the presence of an optical node-trick,

2. the use of a fiber in the lumen of the needle,

3. the use of a set of emitting devices allows you to make a choice of the range of optical radiation,

4. the presence of an electronic key and a light panel facilitates the manipulation of light-emitting devices,

5. The presence of marking allows you to avoid mistakes in choosing a treatment method and is a “passport” for medical tactics at the subsequent stages of medical care.

LITERATURE

1. Karandashov V.I., Petukhov E.B., Zrodnikov B.C. "Phototherapy" Guide for doctors. M. Honey. 2001.

2. Karandashov V.I., Petukhov E.B. Ultraviolet irradiation of blood. M. Honey. 1977.

3. Luzhnikov EA Goldfarb Yu.S. "Physical hemotherapy of acute poisoning" M. 2002.

4. Light emitting needle. Patent for PM No. 45087

Claims (1)

A device for intravascular blood irradiation with optical radiation in emergency situations, consisting of single-acting light emitting devices, each of which consists of an injection needle, in the lumen of which there is a quartz fiber coupled to an optical focal unit, and an LED emitting ultraviolet rays or red or blue light located in the device cover and marked with a luminescent coating, as well as an autonomous power source, light panel and electronic key, mounted base unit.