CN212038631U - High-precision photodynamic therapy device - Google Patents
High-precision photodynamic therapy device Download PDFInfo
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- CN212038631U CN212038631U CN201922389301.9U CN201922389301U CN212038631U CN 212038631 U CN212038631 U CN 212038631U CN 201922389301 U CN201922389301 U CN 201922389301U CN 212038631 U CN212038631 U CN 212038631U
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Abstract
The utility model discloses a high accuracy photodynamic therapy device, including laser irradiation ware, laser irradiation ware includes: a housing. The irradiation light source is arranged in the shell and can generate treatment light with a first wavelength to irradiate the surface to be irradiated. And the plurality of ranging light sources are arranged in the shell and can generate a plurality of ranging light rays with second wavelengths, and the plurality of ranging light rays can be converged into a laser spot on the surface to be irradiated under the preset irradiation distance. The positioning light sources are arranged in the shell and can generate a plurality of positioning light rays with a third wavelength, the positioning light rays can generate a plurality of linear projections on the surface to be irradiated, and the linear projections at least intersect with each other to form an irradiation area. Wherein the plurality of positioning light sources are arranged along the edge of the irradiation light source. The utility model discloses high accuracy photodynamic therapy device can keep treating the distance between irradiation surface and the laser irradiation ware correct and stable.
Description
Technical Field
The utility model relates to a photodynamic treatment field, specifically a high accuracy photodynamic treatment device.
Background
Photodynamic therapy is a new method for treating diseases using photosensitizing drugs and laser activation.
The photodynamic therapy comprises three steps of applying a photosensitizer, applying light with corresponding wavelength and keeping away from light to wait for the metabolism of the photosensitizer.
When the corresponding wavelength of light is given, the most appropriate light intensity is selected according to different photosensitizers and indications, and the focus part is irradiated and treated at a preset irradiation distance. To ensure the illumination intensity is proper and constant, the distance between the irradiation light source and the skin of the lesion site needs to be kept proper and stable.
In addition, when the radiation treatment is performed on the focus position, the irradiation region of the laser irradiator needs to be aligned with the focus position to achieve the treatment effect.
The existing photodynamic therapy device is not provided with a control module for controlling the irradiation distance and a device which can facilitate the alignment of the irradiation region and the focus position. Inconvenience is caused when in use, and irradiation is easy to be carried out under wrong irradiation distance, thereby achieving no good treatment effect.
Therefore, there is a need for further improvement of the existing photodynamic therapy device to facilitate adjustment of irradiation distance and alignment of the focal site.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a high accuracy photodynamic therapy device, it can make the treatment in-process keep waiting to irradiate the distance between surface and the laser irradiation ware correct and stable.
The utility model discloses a high accuracy photodynamic therapy device, including laser irradiation ware, laser irradiation ware includes:
a housing;
the irradiation light source is arranged in the shell and can generate treatment light with a first wavelength to irradiate a surface to be irradiated;
the plurality of ranging light sources are arranged in the shell and can generate a plurality of ranging light rays with second wavelength, and the plurality of ranging light rays can be converged into a laser spot on the surface to be irradiated under a preset irradiation distance; and
the positioning light sources are arranged in the shell and can generate a plurality of positioning light rays with a third wavelength, the positioning light rays can generate a plurality of linear projections on the surface to be irradiated, and the linear projections are at least intersected pairwise to form an irradiation area;
the positioning light sources are arranged along the edge of the irradiation light source, so that the treatment light can be arranged in the irradiation area.
Preferably, the laser irradiator comprises three distance measuring light sources, the three distance measuring light sources can generate three distance measuring light rays with the second wavelength, and the three distance measuring light rays can be converged into a laser spot on the surface to be irradiated under the preset irradiation distance when the surface to be irradiated is parallel to the surface of the laser irradiator.
Preferably, the laser irradiator includes at least three positioning light sources.
Preferably, the laser irradiator comprises four positioning light sources, and the four positioning light sources are arranged along the periphery of the edge of the irradiation light source and can form a rectangular irradiation area on the surface to be irradiated.
Preferably, the high-precision photodynamic therapy device further comprises a case and an adjusting rod, and the laser irradiator is connected with the case through the adjusting rod.
Preferably, a controller is arranged in the case to set the preset irradiation distance and irradiation time, and the laser irradiator is electrically connected with the controller.
The utility model has the advantages as follows:
the utility model discloses high accuracy photodynamic therapy device is three through setting up three range finding light source, and is three range finding light source can produce three range finding light that have the second wavelength, and three range finding light can be just under predetermineeing the irradiation distance treat the irradiation surface with during laser irradiator surface parallel, assemble into a laser facula treating the irradiation surface to can make and keep treating the distance between irradiation surface and the laser irradiator correct and stable in the treatment process, and to the treatment of great area focus skin, treat the irradiation surface and can ensure the illumination intensity homogeneous of the irradiation light source that focus skin each position receives with laser irradiator surface parallel, thereby improve treatment.
The utility model discloses high accuracy photodynamic therapy device is through setting up four location light sources, and four location light sources can produce four location light that have the third wavelength. Four positioning light rays can generate four linear projections on the surface to be irradiated, the four linear projections are intersected in pairs, a rectangular irradiation area is formed on the surface to be irradiated, and four positioning light sources are arranged around the edge of the irradiation light source, so that the treatment light rays can be arranged in the irradiation area range, and better treatment effect can be ensured as long as the focus position is ensured to be in the rectangular irradiation area in the process of using the photodynamic treatment device for treatment.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a high-precision photodynamic therapy device in an embodiment of the present invention;
FIG. 2 is a schematic diagram of the high-precision photodynamic therapy device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the embodiment of the present invention, in which the high-precision photodynamic therapy device is not within the preset irradiation distance range;
FIG. 4 is a schematic diagram of the high-precision photodynamic therapy device of the embodiment of the present invention not in the irradiation region;
reference numerals of the above figures: 1-a chassis; 2-adjusting the rod; 3-a laser irradiator; 4-a pulley; 5-laser facula; 6-linear projection; 7-irradiation area; 8-focal site.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present embodiment provides a high precision photodynamic therapy device, including a laser irradiator 3, the laser irradiator 3 includes:
a housing;
the irradiation light source is arranged in the shell and can generate treatment light with a first wavelength to irradiate a surface to be irradiated;
the plurality of distance measuring light sources are arranged in the shell and can generate a plurality of distance measuring light rays with second wavelength, and the plurality of distance measuring light rays can be converged into a laser spot 5 on the surface to be irradiated under a preset irradiation distance; and
the positioning light sources are arranged in the shell and can generate a plurality of positioning light rays with a third wavelength, the positioning light rays can generate a plurality of linear projections 6 on the surface to be irradiated, and the linear projections 6 are at least intersected pairwise to form irradiation areas 7;
the positioning light sources are arranged along the edge of the irradiation light source, so that the treatment light can be arranged in the irradiation area 7.
The present embodiment provides a high-precision photodynamic therapy apparatus, which is used for performing irradiation therapy on the surface of a focal site 8 at a preset irradiation distance, wherein the surface of the focal site 8 is the surface to be irradiated.
Referring to fig. 1, the high-precision photodynamic therapy device includes a laser irradiator 3, a case 1 and an adjusting lever 2. The controller is arranged in the case 1, and the laser irradiator 3 is electrically connected with the controller, so that the controller can control the preset irradiation distance, the irradiation time, the wavelength of the irradiation light source and the illumination intensity of the irradiation light source.
The laser irradiator 3 includes a housing, an irradiation light source, a plurality of distance measuring light sources, and a plurality of positioning light sources.
The shell is in a cuboid shape. One end of the shell is connected with the adjusting rod 2. The other end of the housing is a glass face to allow light to pass through. Two handles are also provided on the two side walls of the housing to facilitate movement of the laser irradiator 3 and thereby facilitate adjustment of the position of the laser irradiator 3. The inside of shell is equipped with and holds the cavity in order to hold irradiation light source, a plurality of range finding light source and a plurality of location light source.
The irradiation light source is arranged in the inner accommodating cavity of the shell. The irradiation light source is capable of generating therapeutic light having a first wavelength that is set according to the type of photosensitizer used and the wavelength required for the individual indication. The therapeutic light can irradiate the surface to be irradiated, namely, the focus 8 is irradiated and treated. The illumination intensity of the irradiation light source has an important influence on the treatment effect of the lesion site 8. The illumination intensity and the irradiation distance are closely related, if the irradiation distance is too large, the illumination intensity does not reach a preset value, and if the irradiation distance is too small, the illumination intensity exceeds the preset value, so that the treatment effect of the irradiation light on the lesion site 8 is poor.
Therefore, in order to improve the irradiation effect of the irradiation light source on the lesion 8, the illumination intensity of the irradiation light source during the treatment process needs to be kept appropriate and stable, so that the accuracy of the value of the irradiation distance between the irradiation light source and the surface to be irradiated needs to be ensured, that is, the irradiation distance between the irradiation light source and the surface to be irradiated is equal to a preset irradiation distance which is set according to the type of the photosensitizer and the need of the non-adaptive disease.
Based on this, this embodiment has set up three range finding light sources, and three range finding light sources are located in the shell. The three ranging light sources can respectively generate three ranging light rays with second wavelengths. Referring to fig. 3, when the distance between the surface to be irradiated and the laser irradiator 3 is smaller than or greater than the preset irradiation distance, the three ranging lights generate three light spots on the surface to be irradiated to remind an operator to readjust the distance between the laser irradiator 3 and the surface to be irradiated.
Referring to fig. 2, it can be seen from the principle that 1 plane is determined from 3 points that if and only if the distance between the surface to be irradiated and the laser irradiator 3 is the preset irradiation distance and the surface to be irradiated is parallel to the surface of the laser irradiator 3, the three ranging light rays can be converged into one laser spot 5 on the surface to be irradiated at the preset irradiation distance, so that the distance between the surface to be irradiated and the laser irradiator 3 can be maintained to be correct and stable in the treatment process. For the treatment of the lesion skin with a large area, the surface to be irradiated is parallel to the surface of the laser irradiator 3, so that the uniform illumination intensity of the irradiation light source on each position of the lesion skin can be ensured, and the treatment effect is improved.
In another alternative embodiment, two ranging light sources are provided. Two range finding light sources are located in the shell. The two distance measuring light sources can respectively generate two distance measuring light rays with second wavelengths. When the distance between the surface to be irradiated and the laser irradiator 3 is smaller than or larger than the preset irradiation distance, the two ranging lights can generate two light spots on the surface to be irradiated so as to remind an operator to readjust the distance between the laser irradiator 3 and the surface to be irradiated. The arrangement of the two distance measuring light sources is relatively simple when the position of the laser irradiator 3 is adjusted, and in the process of using the photodynamic therapy device for treatment, as long as only one laser spot 5 of the focus part 8 is always arranged, the distance between the surface to be irradiated and the laser irradiator 3 is correct and stable. But it is not guaranteed that the surface to be irradiated and the laser irradiator 3 are parallel.
In another alternative embodiment, four ranging light sources are provided. Four range finding light sources are located in the shell. The four ranging light sources can respectively generate four ranging light rays with second wavelengths. When the distance between the surface to be irradiated and the laser irradiator 3 is smaller than or larger than the preset irradiation distance, the four ranging light rays can generate four light spots on the surface to be irradiated so as to remind an operator to readjust the distance between the laser irradiator 3 and the surface to be irradiated. If and only if the distance between the surface to be irradiated and the laser irradiator 3 is the preset irradiation distance and the surface to be irradiated is parallel to the surface of the laser irradiator 3, the four ranging light rays can be converged into a laser spot 5 on the surface to be irradiated at the preset irradiation distance.
When the focal site 8 is irradiated, the irradiation region 7 of the laser irradiator 3 needs to be aligned with the focal site 8 to achieve the treatment effect. In order to facilitate the operator to detect the alignment, it is emphasized with reference to fig. 2 that four positioning light sources are provided in the present embodiment. Four positioning light sources are arranged in the shell. The four positioning light sources are arranged around the edge of the irradiation light source, so that the treatment light can be arranged in the range of the irradiation area 7. The four positioning light sources can generate four positioning light beams with a third wavelength. The four positioning light rays can generate four linear projections 6 on the surface to be irradiated, the four linear projections 6 are intersected pairwise, and a rectangular irradiation area 7 is formed on the surface to be irradiated. In the process of using the photodynamic therapy device for treatment, better treatment effect can be ensured as long as the focus position 8 is ensured to be positioned in the rectangular irradiation region 7. Referring to fig. 4 with emphasis, when the irradiation region 7 of the laser irradiator 3 does not correspond to the focal region 8, the four positioning light rays cannot produce the rectangular-shaped irradiation region 7 on the focal region 8.
In another alternative embodiment, the laser irradiator 3 is provided with three positioning light sources. Three positioning light sources are arranged in the shell. Three positioning light sources are arranged along the edge of the irradiation light source, so that the therapeutic light can be arranged in the range of the irradiation region 7. The three positioning light sources can generate three positioning light beams with a third wavelength. The three positioning light rays can generate three linear projections 6 on the surface to be irradiated, the three linear projections 6 are intersected pairwise, and a triangular irradiation area 7 is formed on the surface to be irradiated. In the process of using the photodynamic therapy device for treatment, better treatment effect can be ensured as long as the focus part 8 is ensured to be positioned in the triangular irradiation region 7.
The application method of the high-precision photodynamic therapy device comprises the following steps:
a photosensitizer is administered at the focal site 8.
After the focus 8 is applied with photosensitizer, a rectangular irradiation area 7 formed by four straight line projections 6 generated by four positioning light sources respectively corresponds to the focus 8.
After the focus part 8 is in the irradiation region 7, three ranging light rays generated by the three ranging light sources are converged into a laser spot 5 on the surface of the focus part 8, so that a preset irradiation distance is formed between the laser irradiator 3 and the focus part 8.
After the preset irradiation distance between the laser irradiator 3 and the focus part 8 is reached, the focus part 8 is irradiated and treated by the treatment light with the first wavelength emitted by the irradiation light source.
After the radiation treatment at the focal site 8 is completed, the focal site is protected from light to metabolize the photosensitizer at the focal site.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (6)
1. A high precision photodynamic therapy device comprising a laser irradiator, said laser irradiator comprising:
a housing;
the irradiation light source is arranged in the shell and can generate treatment light with a first wavelength to irradiate a surface to be irradiated;
the plurality of ranging light sources are arranged in the shell and can generate a plurality of ranging light rays with second wavelength, and the plurality of ranging light rays can be converged into a laser spot on the surface to be irradiated under a preset irradiation distance; and
the positioning light sources are arranged in the shell and can generate a plurality of positioning light rays with a third wavelength, the positioning light rays can generate a plurality of linear projections on the surface to be irradiated, and the linear projections are at least intersected pairwise to form an irradiation area;
the positioning light sources are arranged along the edge of the irradiation light source, so that the treatment light can be arranged in the irradiation area.
2. The high-precision photodynamic therapy device according to claim 1, wherein the laser irradiator comprises three distance measuring light sources, three distance measuring light sources can generate three distance measuring light rays with the second wavelength, and the three distance measuring light rays can be converged into a laser spot on the surface to be irradiated when the surface to be irradiated is parallel to the surface of the laser irradiator at the preset irradiation distance.
3. The high precision photodynamic therapy device according to claim 1 wherein the laser applicator includes at least three positioning light sources.
4. The high-precision photodynamic therapy device according to claim 3, wherein the laser irradiator comprises four positioning light sources which are arranged along the periphery of the edge of the irradiation light source and can form a rectangular irradiation area on the surface to be irradiated.
5. The high-precision photodynamic therapy device according to claim 1, further comprising a case and an adjusting lever, wherein the laser irradiator is connected with the case through the adjusting lever.
6. The high precision photodynamic therapy device according to claim 5, wherein a controller is provided in the housing for setting the preset irradiation distance and irradiation time, and the laser irradiator is electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389301.9U CN212038631U (en) | 2019-12-27 | 2019-12-27 | High-precision photodynamic therapy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389301.9U CN212038631U (en) | 2019-12-27 | 2019-12-27 | High-precision photodynamic therapy device |
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| Publication Number | Publication Date |
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| CN212038631U true CN212038631U (en) | 2020-12-01 |
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| CN201922389301.9U Active CN212038631U (en) | 2019-12-27 | 2019-12-27 | High-precision photodynamic therapy device |
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| CN (1) | CN212038631U (en) |
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