RU161540U1 - DEVICE FOR VISUALIZING BLOOD VESSELS - Google Patents

Abstract

1. A device for visualizing blood vessels, characterized in that it comprises a housing with a red light source attached to it and a brightness control of the emitted light placed in the housing, while a mobile telephone equipped with a photo / video camera is fixed to the housing. The device according to claim 1, characterized in that it is equipped with a focusing device mounted in the housing with the possibility of vertical movement. The device according to claim 1, characterized in that it is equipped with a device for increasing the resulting image. The device according to claim 1, characterized in that it is equipped with a removable assembly for mounting a mobile phone equipped with a photo / video camera. 5. The device according to claim 1, characterized in that it is equipped with an infrared light source. The device according to claim 1, characterized in that it is provided with a source of ultraviolet light. The device according to claim 1, characterized in that it is equipped with a light source of a separate part of the visible spectrum. The device according to claim 1, characterized in that it is equipped with a structural element that provides the possibility of introducing a needle into a blood vessel. The device according to claim 1, characterized in that it is equipped with a voltage converter. The device according to PP. 5-7, characterized in that it is equipped with a removable nozzle in which the light sources are located. 11. The device according to claim 2, characterized in that it is equipped with a scale for adjusting focus. The device according to claim 1, characterized in that it is equipped with an external power supply system. The device according to claim 1, characterized in that it is equipped with a device for fixing the device on the body.

Description

Device for visualizing blood vessels.

The device relates to medicine, but can also be used in veterinary medicine. The device can be used to facilitate venous access, rapid diagnosis of certain types of vascular pathology and to solve a wide range of other diagnostic tasks.

A device AccuVein AV300 is known for visualizing the subcutaneous vasculature and facilitating venous access (see, for example,

http://www.medicalcompany.ru/pribor_dlya_prosmotra_periferichesk or http: //www.cpkmed.m/index.php? option = com_content & view = article & id = 81: -accuvein-av300 & catid = 74: 2012-08-22-05-54 -20 & Itemid = 59).

It uses 2 lasers with wavelengths of 642 nm (red) and 785 nm (infrared). Coherent radiation penetrates the soft tissues. Light is reflected from optically inhomogeneous anatomical formations (mainly vessels) and is perceived by a digital video camera. Information is processed by the built-in computer. Using the projector, the image of the vessels is projected onto the surface of the body. The device is used non-contact and provides high quality visualization of superficial vessels. The device can be equipped with a tripod and used stationary (for example, in treatment rooms). For emergency care, it is advisable to have an assistant holding the device in position during the injection or installation of a peripheral catheter by another healthcare provider. Otherwise, when using the device with one person, you must first mark with a marker

projection of blood vessels, and then perform an injection or install a catheter in a marked place.

The disadvantage of this device is that during the injection, it is necessary to keep it above the surface of the body area (with the help of an assistant or through the use of a tripod). Otherwise, marking of the projection of blood vessels on the surface of the body area is required (for subsequent insertion of a syringe or catheter needle into the marked location).

A device is known for visualizing vessels LUCH-M200, taken as a prototype, which is a lamp containing a housing, a source of visible red and / or near infrared light (LED), a regulator of brightness of the emitted light, a replaceable power source. (See, for example, http://luh.clan.su/index/prezentacija_instrukcija_luch_mms001/0-6 or http://centr-spas.ru/news/pribor_vizualizacii_ven_luch_m200_pribor_dlja_kazhdogo_vracha/2015-02-28.

In use, the device is applied to the skin surface. The emitted red light penetrates the soft tissues and is reflected from optically heterogeneous anatomical formations (mainly superficially located veins). Reflected light is perceived visually. In this case, the blood vessels are visualized on the side of the lantern attached to the skin and look darker than the soft tissues surrounding them. The projection of the selected vein is marked on the skin with a marker. Then, a needle is inserted at the marked location for intravenous injection or infusion, or a peripheral venous catheter is inserted.

The ability to adjust the brightness (intensity) of the LED radiation allows you to detect vessels located at different depths.

The device is also used to solve some other tasks, for example, rapid diagnosis of varicose veins.

The device has the following disadvantages. 1) The possibility of photo / video shooting of visualized vessels is not provided. 2) The use of red light allows you to detect vessels at a shallower depth than is fundamentally possible. 3) insufficient usability due to the visualization of blood vessels on the side of the device attached to the skin. 4) The need to mark the projection of blood vessels on the surface of a body site (for subsequent injection of a syringe or catheter needle into a marked location) 5) the use of the device to visualize the process of introducing the needle into the vessel is very inconvenient (therefore, the device is used only to determine the place of the subsequent introduction of the needle, but not in the process of its introduction);

The objective of the utility model is to increase the functionality of the device.

The problem is solved due to the fact that, according to a useful model, in a device for visualizing blood vessels containing a body, one or more sources of red light and a regulator of brightness of the emitted light, a mobile phone equipped with a photo / video camera and mounted on the body is used as a visualization tool.

The device is equipped with a focusing device mounted in the housing with the possibility of vertical movement.

The device is equipped with a device for increasing the resulting image.

The device is equipped with a removable unit for mounting a mobile phone equipped with a photo / video camera.

The device is equipped with at least one infrared light source.

The device is equipped with at least one source of ultraviolet light.

The device is equipped with at least one source of visible light of a wide spectrum.

The device is equipped with a structural element that provides the possibility of introducing a needle into a blood vessel.

The device is equipped with a voltage converter.

The device is equipped with a removable nozzle in which light sources are placed.

The device is equipped with a scale for adjusting focus.

The device is equipped with an external power supply system.

The device is equipped with a device for fixing it on the body.

Using the claimed utility model allows to increase the functionality of the device, in particular, makes it possible to achieve detection of blood vessels at a greater depth compared to the prototype. This is ensured by the application

infrared light, not perceived by the human visual analyzer, but well perceived by a photo / video camera. Infrared light penetrates much deeper into tissue than visible red light.

Using a mobile phone equipped with a photo / video camera as a visualization tool is very convenient due to the wide distribution of such devices. (It is possible to use different versions of mobile phones, for example smartphones, "tablets" or other similar mobile devices). The resulting image is then displayed directly on the screen of the mobile phone. If a mobile phone has the ability to access the Internet or is equipped with a device for transmitting information to other mobile devices, then it becomes possible to use the claimed utility model in telemedicine.

The implementation of the attachment unit of the mobile phone removable makes it possible to replace it with another mount, the most suitable in size for a particular model of mobile device.

The simultaneous use of sources of red and infrared light can improve the quality of visualization of blood vessels using a photo / video camera.

Saving visible red light sources in the device’s design also allows you to use the device without a photo / video camera (when removing a mobile phone or smartphone, its mount and focusing device),

visual detection of relatively shallow vessels.

The presence of a voltage converter allows the device to operate to a more complete exhaustion of the capacity of a removable power element (battery) or battery. This increases the autonomy of the device.

The universality of the device’s power supply and the possibility of its operation from an external electric network are provided. It is possible to power the device from the battery attached to it mobile phone.

The presence of a focusing device improves the quality of visualization of blood vessels and allows you to detect blood vessels at different depths. The presence of a special scale allows you to assess the depth of the location of the detected vessels.

Making the focusing device removable allows you to replace it with a similar device with other optical characteristics, or remove it if your mobile phone has its own focusing system.

A focusing device can also be used to obtain an enlarged image.

If necessary, the projection of the vessel can be marked on the skin (for example, with a marker). This is ensured by the presence of a structural element (recess) in the device body, providing access to the surface of the body. This also provides the possibility of introducing into the detected vessel a needle of a syringe, dropper, catheter or other similar device. Picture

from a photo / video camera is displayed on the screen of a mobile phone. Therefore, the process of introducing the needle can be visually controlled, which significantly reduces the risk of failure to perform this manipulation. The needle can be inserted into the vessel both without preliminary marking with the device installed on the patient’s body, and in the presence of preliminary marking of the projection of the vessel with the device removed.

The presence of a device for fixing the device on the surface of a body site (for example, an elastic belt) significantly increases the convenience of use, since it allows you to free the hands of a medical worker to insert a needle into a vessel.

The placement of light sources in the interchangeable nozzle increases the maintainability of the device. It is possible to use removable nozzles with light sources of various parts of the spectrum, light sources of various powers. This provides the ability to work under different lighting conditions, the most appropriate solution to a particular problem.

The presence of light sources of other parts of the spectrum allows you to choose the optimal lighting mode. In addition, this makes it possible to use the device for solving other tasks not related to performing an injection or catheterization, for example, studying tumor and tumor-like skin formations, studying rash elements, diagnosing fungal and other skin lesions.

The description of the utility model is illustrated by figures, which schematically represent the design of the device:

FIG. 1 bottom view.

FIG. 2, section AA in FIG. one

FIG. 3 front view

FIG. 4, section BB in FIG. 2

FIG. 5 electrical block diagram of the device.

The device has a housing 1 (Fig. 1) to which a removable interchangeable nozzle 2 with visible red light sources 3 and infrared light sources 4 or other part of the spectrum located in it is attached from below. It is possible to use nozzles 2 equipped only with light sources 3 or only with light sources 4. LEDs are used as light sources 3 and 4, but other sources of both incoherent and coherent radiation can be used. A gasket 5 made of soft elastic material (for example, rubber or silicone) is attached to the housing 1 from the bottom, which ensures a snug fit of the device to the surface of the body.

On top of the housing 1, using screws 6 (Fig. 2), a removable platform 7 is rigidly fixed to accommodate a mobile phone (or smartphone, or other similar device) 8 equipped with a photo / video camera 9. In this case, the lens 10 of the photo / video camera 9 is located opposite the hole 11. The platform 7 has protrusions 12 for securing the mobile device 8, as well as a screw 13 for fine-tuning its position. The platform 7 is removable and can be replaced with a platform of other sizes if another mobile device is used 8. The device is equipped with a removable focusing device 14, consisting of a housing 15 and one or more lenses 16. In this case, the focusing device 14 is movably fixed in the tube 17 and can move along the vertical axis.

An inclined slot 18 is made in the tube 17, through which the rod 19 passes, which is attached to the housing 15 of the focusing device 14. At the same time, the vertical movement of the focusing device 14 is provided by displacement by the desired angle of the rod 19. There is also an opening 20 for the rod 19 to pass through A handle 21 is installed at the end of the rod 19 (Fig. 3). A scale 22 is mounted on the housing 1, which makes it possible to determine the displacement of the focusing device 14. The device 14 (Fig. 2) can also be used to obtain an enlarged image when using lenses 16 with the necessary optical characteristics.

It is possible to implement a device in which the optical focusing device 14 is not used, and focusing is carried out by raising or lowering the platform 7 using a similar or other mechanism. Moreover, the mounting of the platform 7 to the housing 1 is not rigid (screws 6 are not used). In this case, the platform 7 is attached to an additional removable part (not shown in the drawings), generally similar to part 15, but somewhat elongated and without lenses 16.

If the camcorder of the mobile phone has a focus function, then the focusing device 14 is not used, and the platform 7 is rigidly attached to the housing 1 by screws 6.

The device is equipped with a removable filter 23, which is installed in the hole 11.

In the housing 1 there is a structural element (recess) 24 (Fig. 1), providing access to the surface of the body for bringing a marker or needle to it.

On the housing 1 there is a mount 25 of the device 26 (for example, an elastic belt) for fixing the device on the surface of the body. On the one hand, the connection is detachable and is carried out using the latch 27.

In the housing 1 is a compartment 28 (Fig. 4) for accommodating a removable power element (battery) or battery 29, equipped with contacts 30 and 31 and having a cover 32.

The housing 1 has a compartment 33 for accommodating the following elements: a voltage converter 34 (Fig. 5), a regulator 35 for the brightness of the emitted light (for light sources 3), a regulator 36 for the brightness of the emitted light (for light sources 4), power mode switches 37 and 38 , a switch 39, a light-emitting diode of an indication of inclusion 40. The device also has a connector 41 for connection to an external electric network via a power supply 42 (Fig. 5). The device has a connector 43 (Fig. 4) (for example, mini-USB) for power supply from the battery of a mobile phone or smartphone 8 (Fig. 2). For this, the connector 43 of the device and the connector 44 of the mobile phone 8 can be connected by a wire 45.

Regulators 35 and 36 have rotary arms 46 and 47 provided with scales 48. The device may be equipped with one or more fuses, which are not shown in the drawings.

The following power options for the device are possible: 1) from a removable power element (battery) or battery 29; 2) from an external power supply (via a power supply); 3) from the battery of a mobile phone, or from the battery of any other external device (providing current with

suitable characteristics). It is possible to charge the battery 29.

Parts 34-41, 43 in FIG. 4 are presented schematically without respecting the proportions, the connection with wires and (or) their contacts is not indicated, and their relative position may be different.

The device is used as follows. The device is tightly applied to the surface of the body area and secured using the device 26 (elastic belt). Using the switches 37 and 38 select the desired power mode of the device and using the switch 39 turn it on. Turning the knobs 46 and 47 adjust the brightness (intensity) of the glow of the light sources 3 and 4.

Red and, in particular, infrared light penetrates deep into soft tissues. Light is reflected from optically heterogeneous anatomical formations (mainly veins). The reflected light enters the lens of the photo / video camera of the mobile phone 8. The resulting image is digitized and displayed on its screen.

Using the focusing device 14 achieve the desired sharpness of the image of the vessels (or other objects) located at the desired depth. Approximately estimate the depth of their location can be using the scale 22.

If the design of the mobile phone 8 allows focusing without any additional devices, then the focusing device 14 is not used.

Through the recess 24, a needle of a syringe, dropper or other similar device can be brought to the skin. Insertion of a needle into a vessel

carried out under visual control of the image displayed on the screen of a mobile phone or smartphone.

Before performing the above manipulations, the surface of the body area and the lower part of the device are disinfected (for example, ethyl alcohol).

If the introduction of the needle when the device is installed on the body for some reason is inconvenient, then the projection of the selected vessel is marked on the skin using a marker (or other similar device), which is supplied to the skin through the recess 24.

The use of a device with the described purpose is advisable in cases where it is not possible to detect vessels in the generally accepted way (for example, with some angiopathies, a large thickness of subcutaneous fat, lowering venous pressure in extreme conditions), and an injection, infusion or catheter installation is necessary.

The device can also be used for rapid diagnosis of certain types of pathology of superficially located vessels (for example, varicose veins, thrombophlebitis), detection of foreign bodies, tumors with superficial localization, diagnosis of some parasitic diseases. In this case, the device is not fixed, but is conducted along the body surface in different directions, changing the focus and the intensity of the glow of the red light sources 3 and infrared light sources 4 as necessary.

In this case, the features of the visualized vessels are evaluated or other desired objects are found. Position representing

interest of objects can be noted on the skin (for example, with a marker) for subsequent more detailed research.

It is possible to transfer information (images) to external mobile phones, smartphones or computers, if mobile phone 8 provides such an opportunity.

In principle, it is possible to use the device with the mobile phone 8 removed, its mount 7 and the focusing device 14. In this case, the operation is performed using visible red light. Vessels (or other objects) can be detected visually, but at a shallower depth.

The scope of the device is not limited to the detection of blood vessels and other objects located under the skin and in the depths of soft tissues. It is possible to use the device for diagnostic purposes to study the skin and the formations on them. To study the tumor and tumor-like formations of the skin or elements of the rash, nozzles 2 are used containing light sources of a wide spectrum, or light of individual parts of the visible spectrum.

When using nozzles 2 with sources of ultraviolet light and the use of a removable filter 23, the device can be used to observe luminescence. This allows its use, for example, for the diagnosis of fungal skin lesions. At the same time, photo or video registration of the resulting image is also carried out.

Claims (13)

1. A device for visualizing blood vessels, characterized in that it contains a housing with a red light source attached to it and a brightness control of the emitted light placed in the housing, while a mobile phone equipped with a photo / video camera is fixed to the housing. 2. The device according to p. 1, characterized in that it is equipped with a focusing device mounted in the housing with the possibility of vertical movement. 3. The device according to p. 1, characterized in that it is equipped with a device for increasing the resulting image. 4. The device according to p. 1, characterized in that it is equipped with a removable node for mounting a mobile phone equipped with a photo / video camera. 5. The device according to claim 1, characterized in that it is equipped with an infrared light source. 6. The device according to p. 1, characterized in that it is equipped with a source of ultraviolet light. 7. The device according to claim 1, characterized in that it is equipped with a light source of a separate part of the visible spectrum. 8. The device according to p. 1, characterized in that it is equipped with a structural element that provides the possibility of introducing a needle into a blood vessel. 9. The device according to p. 1, characterized in that it is equipped with a voltage Converter. 10. The device according to paragraphs. 5-7, characterized in that it is equipped with a removable nozzle in which the light sources are placed. 11. The device according to p. 2, characterized in that it is equipped with a scale for adjusting the focus. 12. The device according to p. 1, characterized in that it is equipped with a power supply system from external sources. 13. The device according to p. 1, characterized in that it is equipped with a device for fixing the device on the body.

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