CN220557995U - Terminal extension equipment of indocyanine green angiography system - Google Patents
Terminal extension equipment of indocyanine green angiography system Download PDFInfo
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- CN220557995U CN220557995U CN202321900569.4U CN202321900569U CN220557995U CN 220557995 U CN220557995 U CN 220557995U CN 202321900569 U CN202321900569 U CN 202321900569U CN 220557995 U CN220557995 U CN 220557995U
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- indocyanine green
- infrared camera
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- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 title claims abstract description 44
- 229960004657 indocyanine green Drugs 0.000 title claims abstract description 44
- 238000002583 angiography Methods 0.000 title claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 9
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- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
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- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 231100000636 lethal dose Toxicity 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
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Abstract
The utility model relates to a terminal extension device of an indocyanine green angiography system, which comprises an intelligent device and a bearing device, wherein the bearing device comprises an infrared camera, an optical filter, a fluorescence exciter and a positioning laser lamp; a groove for placing intelligent equipment is formed in one side of the bearing device; an infrared camera is arranged in the center of the other side of the bearing device, and an optical filter is arranged on the outer side of the infrared camera; a plurality of groups of fluorescence exciters are arranged on the bearing device at one side of the infrared camera at intervals, the fluorescence exciters are used for exciting indocyanine green to emit fluorescence, and positioning laser lamps are arranged at four corners of the bearing device. In order to be more convenient to use in cooperation with a smart phone or a tablet personal computer, the fluorescent exciter and the infrared camera are arranged on a bearing device similar to a protective shell of the smart phone or the tablet personal computer, and the handheld device is more portable.
Description
Technical Field
The utility model relates to terminal extension equipment of an indocyanine green angiography system, and relates to the field of optical imaging.
Background
Indocyanine green is a water-soluble tricarbocyanine fuel, developed by kodak corporation in 1955, originally used for near infrared photography. In 1956, the U.S. FDA approved its use for liver and heart function assessment for the first time. Indocyanine green is excited by near infrared light with the wavelength of 778-806nm to emit fluorescence, the fluorescence reaches the maximum at 832nm wavelength, the fluorescence exceeds the autofluorescence range of most tissues, and the tissue with the maximum thickness can be penetrated by 15 mm. The use of near infrared cameras captures this fluorescence and can be converted to visible light for visual observation. Indocyanine green is nontoxic and at risk of iodide allergy, but is not common. Indocyanine green is relatively safe to use, and the lethal dose is 80mg/kg, and the typical dosage is 0.2mg/kg. Indocyanine green can be injected intravenously and most of the plasma proteins fix ICG in the blood vessel due to its protein binding properties. In addition, indocyanine green can be excreted into bile by hepatic metabolism at a rate of 18-24% per minute. The half-life is the shortest, about 3-4 minutes, and the clearance speed is fast enough within the first 10-20 minutes after injection, so that the injection can be repeatedly used in a short time. Based on the above characteristics of indocyanine green, the indocyanine green can be used as an ideal angiography agent, and can be developed in real time in operation and repeatedly used in a single operation.
Real-time angiograms during surgery can significantly improve the accuracy and success rate of surgical procedures. The indocyanine green angiography system is a superficial angiography technology, and has important significance for tumor excision, sentinel lymph node biopsy, burn depth judgment and treatment scheme selection, flap vessel dissection judgment in plastic surgery, operation scheme design, and flap blood transport monitoring in operation and after operation. The current general indocyanine green angiography (indocyanine green angiography, ICGA) device generally comprises four parts, namely a fluorescence exciter, an infrared video recorder, an image processing center and a display screen. Because indocyanine green needs to be excited by 778-806nm infrared light to emit infrared light which is far different from the background of a human body, a fluorescence exciter is needed. Infrared light emitted by indocyanine green after excitation is near 832nm wavelength, so that a camera with a blocking filter is required to collect images; the video file should be played after being processed by the existing special matched software to finally form file output.
The existing indocyanine green angiography equipment is huge in volume, on one hand, the occupied space is large, the cost of equipment management manpower and material resources is high, and the equipment is inconvenient to carry, install and maintain in daily life; on the other hand, the equipment is huge, so that the difficulty level of the operation of medical staff is increased, and the learning cost is increased.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the object of the present utility model is to provide a terminal extension device of indocyanine green angiography system that is small and portable, with respect to the above mentioned problems.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the terminal extension equipment of the indocyanine green angiography system comprises intelligent equipment and a bearing device, wherein the bearing device comprises an infrared camera, an optical filter, a fluorescence exciter and a positioning laser lamp; a groove for placing the intelligent equipment is formed in one side of the bearing device; the center of the other side of the bearing device is provided with the infrared camera, and the outer side of the infrared camera is provided with the optical filter; the infrared camera is characterized in that a plurality of groups of fluorescence exciters are arranged on the bearing device at one side of the infrared camera at intervals, the fluorescence exciters are used for exciting indocyanine green to emit fluorescence, and the positioning laser lamps are arranged at four corners of the bearing device.
Further, the bearing device is further provided with a USB interface, and the USB interface is connected with the infrared camera and the intelligent device.
Further, the bearing device is also provided with a brightness adjusting knob for adjusting the brightness of the fluorescent exciter.
Further, each group of the fluorescence exciters comprises a plurality of infrared continuous lasers and a resistor, and the infrared continuous lasers and the resistor are connected in series; one end of each group of fluorescence exciter is connected with one end of the infrared camera after being connected in parallel, and the other end of each group of fluorescence exciter is connected with the other end of the infrared camera through an adjustable resistor, wherein the adjustable resistor is used as a brightness adjusting knob of the fluorescence exciter.
Further, each of the infrared continuous lasers adopts an infrared band of 785nm.
Further, a plano-concave lens is arranged on the outer side face of each infrared continuous laser to expand laser beams and used for scattering infrared light to an observed object.
Further, each positioning laser lamp adopts visible light.
The utility model adopts the technical proposal and has the following characteristics:
1. starting from clinical application, the utility model takes mobile intelligent equipment (such as a smart phone and a tablet personal computer) as an image processing center and a display screen, reduces the volumes of a fluorescence exciter and an infrared video recorder to mobile expansion equipment, optimizes and simplifies the structure of an indocyanine green angiography system, so that the technology can be more widely and conveniently applied to clinic, and expands more application scenes.
2. The existing ICGA equipment is large-scale equipment, and is difficult to carry and operate by a single person, and the utility model replaces the existing indocyanine green angiography equipment by parts with smaller size, so that the volume of the equipment is greatly reduced.
3. In order to be more convenient to use in cooperation with intelligent equipment, the fluorescent exciter and the infrared camera are arranged on the bearing device similar to a protective shell of a smart phone or a tablet personal computer, so that the handheld equipment is more portable, and the functions of a traditional large machine can be completed only by using the handheld equipment.
In conclusion, the utility model can be widely applied to indocyanine green angiography.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Like parts are designated with like reference numerals throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a terminal extension device of an indocyanine green angiography system according to the present utility model, fig. 1 (a) is a schematic structural diagram of one side of a carrier, and fig. 1 (b) is a schematic structural diagram of the other side of the carrier.
Fig. 2 is a schematic diagram of the arrangement of the elements of the present utility model.
Fig. 3 is a circuit connection diagram of the present utility model.
Fig. 4 is a schematic diagram of the working principle of the positioning laser lamp of the present utility model.
Detailed Description
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The hardware imaging of ICGA requires a fluorescence exciter (778-806 nm continuous laser) and a camera equipped with filters (832 nm or so). The ICGA imaging basis is that indocyanine green is combined with plasma protein and distributed in blood vessels after being injected into a human body, and infrared light (near 832nm wavelength) which is far different from the background of the human body is emitted under the excitation of 778-806nm infrared light. The hardware devices of the current indocyanine green angiography system are medium-large devices, the processing center is a desktop computer, and the application of the technology is severely limited by huge hardware devices. The utility model provides terminal extension equipment of an indocyanine green angiography system, which comprises intelligent equipment and a bearing device, wherein the bearing device comprises an infrared camera, an optical filter, a fluorescence exciter and a positioning laser lamp; a groove for placing intelligent equipment is formed in one side of the bearing device; an infrared camera is arranged in the center of the other side of the bearing device, and an optical filter is arranged on the outer side of the infrared camera; a plurality of groups of fluorescence exciters are arranged on the bearing device at one side of the infrared camera at intervals, the fluorescence exciters are used for exciting indocyanine green to emit fluorescence, and positioning laser lamps are arranged at four corners of the bearing device. Therefore, the infrared camera is connected with the intelligent equipment, and is used for processing and playing on the intelligent equipment, and finally, a distribution image of indocyanine green in a blood vessel is formed, so that guidance is provided for clinical treatment. Therefore, the utility model optimizes and simplifies the hardware equipment of the indocyanine green angiography system, so that the indocyanine green angiography system is more miniaturized and more convenient to use.
Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. In this embodiment, a smart phone is used as a specific embodiment for explanation, and this is not limited to this, and a portable smart device such as a tablet computer may be used according to different application occasions.
As shown in fig. 1, the terminal extension device of the indocyanine green angiography system provided in this embodiment includes an intelligent device (not shown in the figure) and a carrying device 1;
one side of the carrying device 1 is provided with a groove 2 for placing a smart phone, the smart phone can be used as an image processing center and a display screen of an angiography system, and the image processing of the angiography system can be operated by adopting the existing matched angiography software, so that the smart phone is not used as a protection content of the angiography system.
An infrared camera 3 is arranged in the center of the other side of the bearing device 1, an optical filter is arranged outside the infrared camera 3, a plurality of groups of fluorescence exciters 4 are arranged on the bearing device 1 on one side of the infrared camera 3 at intervals, and the fluorescence exciters 4 are used for exciting indocyanine green to emit fluorescence; the four corners of the bearing device 1 positioned at one side of the fluorescent exciter 4 are provided with positioning laser lamps 5.
In a preferred embodiment of the present utility model, as shown in fig. 2, the carrying device 1 is further provided with a USB interface 6, where the USB interface 6 is used to connect the infrared camera 3 with the smart phone, for transmitting and processing video data, and specifically, two ends of the infrared camera 3 are respectively connected with the USD interface 6.
In a preferred embodiment of the utility model, the carrying device 1 is further provided with a brightness adjustment knob 7, and the brightness adjustment knob 7 is used for adjusting the brightness of the fluorescence exciter 4, namely for adjusting the brightness of the blood vessel to be contrasted, because if the blood vessel to be contrasted is displayed too bright or too dark, the observation is not facilitated.
In a preferred embodiment of the utility model, the infrared band of the fluorescence exciter 4 is 785nm.
In a preferred embodiment of the present utility model, as shown in fig. 3, each set of fluorescent exciters 4 includes a plurality of infrared continuous lasers 41 and a resistor 42, the plurality of infrared continuous lasers 41 and the resistor 42 are connected in series, one end of each set of infrared continuous lasers 41 is connected with one end of the infrared camera 3 after being connected in parallel, the other end of each set of infrared continuous lasers 4 connected in parallel is connected with the other end of the infrared camera 3 through an adjustable resistor 7, wherein the adjustable resistor 7 is used as a brightness adjusting knob of the infrared continuous lasers 4, and brightness adjustment of the fluorescent exciters 4 can be achieved by sliding the adjustable resistor 7.
Further, the laser has good coherence and directivity, and the outer side surface of each infrared continuous laser 41 is provided with a plano-concave lens for laser beam expansion for scattering infrared light to the observed object.
In a preferred embodiment of the utility model, the positioning laser 5 may use visible light.
According to the imaging principle of the ICGA, in the implementation process of the ICGA, the fluorescence intensity of indocyanine green collected by the infrared camera 3 is positively correlated with the intensity of excitation light, and is negatively correlated with the distance between the infrared camera 3 and an observed plane, namely, the larger the intensity of the excitation light is, the higher the fluorescence brightness (the brighter the blood vessel display) collected by the infrared camera 3 is. The farther the observation plane is from the infrared camera 3, the lower the fluorescence intensity collected by the infrared camera 3 (the darker the vessel display). The change of the distance between the infrared camera 3 and the observed surface has a great influence on the fluorescence intensity, so that the positioning laser lamp 5 is needed to assist in determining the angle and the concrete between the shooting plane and the measured plane, and the concrete implementation process is as follows:
as shown in fig. 4, positioning laser lamps 5 are placed at four corners of the carrying device 1, two positioning laser lamps 5 located at the transverse upper part of the carrying device 1 are a first group of positioning laser lamps, two positioning laser lamps 5 located at the transverse lower part of the carrying device 1 are a second group of positioning laser lamps, the laser irradiation angle is fixed, when each group of laser is focused, the distance from one side of the positionable device to the observed surface is fixed, and when two groups of visible light positioning laser lamps are both focused on the observed surface, the device plane is considered to be approximately parallel to the observed surface.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In the description of the present specification, reference to the terms "one preferred embodiment," "further," "specifically," "in the present embodiment," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The terminal expansion device of the indocyanine green angiography system is characterized by comprising intelligent equipment and a bearing device, wherein the bearing device comprises an infrared camera, an optical filter, a fluorescence exciter and a positioning laser lamp;
a groove for placing the intelligent equipment is formed in one side of the bearing device;
the center of the other side of the bearing device is provided with the infrared camera, and the outer side of the infrared camera is provided with the optical filter; the infrared camera is characterized in that a plurality of groups of fluorescence exciters are arranged on the bearing device at one side of the infrared camera at intervals, the fluorescence exciters are used for exciting indocyanine green to emit fluorescence, and the positioning laser lamps are arranged at four corners of the bearing device.
2. The terminal extension device of the indocyanine green angiography system according to claim 1, wherein the bearing device is further provided with a USB interface, and the USB interface connects the infrared camera and the intelligent device.
3. The terminal extension device of indocyanine green angiography system according to claim 1, wherein the carrying device is further provided with a brightness adjusting knob for adjusting the brightness of the fluorescence exciter.
4. A terminal extension device of an indocyanine green angiography system according to claim 3, wherein each set of said fluorescence exciters comprises a number of infrared continuous lasers and a resistor, which are connected in series; one end of each group of fluorescence exciter is connected with one end of the infrared camera after being connected in parallel, and the other end of each group of fluorescence exciter is connected with the other end of the infrared camera through an adjustable resistor, wherein the adjustable resistor is used as a brightness adjusting knob of the fluorescence exciter.
5. The terminal extension device of indocyanine green angiography system according to claim 4, wherein each of the infrared continuous lasers employs an infrared band of 785nm.
6. The terminal expansion device of indocyanine green angiography system according to claim 4 or 5, wherein each of the infrared continuous lasers is provided with a plano-concave lens on its outer side for laser beam expansion for scattering infrared light to an object under observation.
7. The terminal extension device of indocyanine green angiography system according to claim 1, wherein each of the positioning laser lamps uses visible light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321900569.4U CN220557995U (en) | 2023-07-19 | 2023-07-19 | Terminal extension equipment of indocyanine green angiography system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321900569.4U CN220557995U (en) | 2023-07-19 | 2023-07-19 | Terminal extension equipment of indocyanine green angiography system |
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| CN220557995U true CN220557995U (en) | 2024-03-08 |
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| CN202321900569.4U Active CN220557995U (en) | 2023-07-19 | 2023-07-19 | Terminal extension equipment of indocyanine green angiography system |
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| CN (1) | CN220557995U (en) |
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- 2023-07-19 CN CN202321900569.4U patent/CN220557995U/en active Active
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