CN211097096U - Laser phototherapy system - Google Patents
Laser phototherapy system Download PDFInfo
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- CN211097096U CN211097096U CN201921860354.8U CN201921860354U CN211097096U CN 211097096 U CN211097096 U CN 211097096U CN 201921860354 U CN201921860354 U CN 201921860354U CN 211097096 U CN211097096 U CN 211097096U
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Abstract
The utility model discloses a laser phototherapy system, which comprises a laser light source module, an energy feedback module and a safety shutter, wherein the laser light source module is used for emitting laser to a main light path and comprises at least one laser; the energy feedback module comprises an optical wedge and a photoelectric conversion circuit, the optical wedge is used for reflecting laser on a main optical path in proportion, and the photoelectric conversion circuit is used for receiving the laser reflected by the optical wedge and converting the laser reflected by the optical wedge into electric energy; the safety shutter is used for blocking the laser on the main optical path when the electric power converted by the photoelectric conversion circuit exceeds a preset threshold value; the laser light source module, the energy feedback module and the safety shutter are sequentially arranged along the main light path. The utility model discloses a laser phototherapy system is provided with energy feedback module and safe shutter, can reach the laser intensity on the control chief optical path, can block the laser on the chief optical path again when laser intensity is too big, has improved the security performance of whole laser phototherapy system when using.
Description
Technical Field
The utility model relates to a medical instrument especially relates to a laser phototherapy system.
Background
Phototherapy, i.e. the treatment of diseases by using the radiation energy of light, has become an indispensable treatment means for modern medical research and clinical treatment, and laser is a common light source in phototherapy. The laser light source has the characteristics of high energy concentration and good unidirectionality, can be used for cutting, vaporizing, condensing and other operations at a focus position accurately, but in the existing laser phototherapy system, laser is directly emitted through a preset light path, and if the light source fails, the laser light source cannot be found in time, and even medical accidents can be caused in serious conditions.
Disclosure of Invention
The main object of the present invention is to provide a laser phototherapy system to improve the safety of the whole laser phototherapy system in the using process.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a laser phototherapy system comprising:
the laser light source module is used for emitting laser to the main light path and comprises at least one laser;
the energy feedback module comprises an optical wedge and a photoelectric conversion circuit, wherein the optical wedge is used for reflecting laser on a main optical path in proportion, and the photoelectric conversion circuit is used for receiving the laser reflected by the optical wedge and converting the laser reflected by the optical wedge into electric energy; and
a safety shutter for blocking the laser light on the main optical path when the electric power converted by the photoelectric conversion circuit exceeds a preset threshold;
the laser light source module, the energy feedback module and the safety shutter are sequentially arranged along a main light path.
Optionally, the safety shutter includes:
a safety mirror;
a safety mirror displacement mechanism for inserting or removing the safety mirror into or out of the main optical path; and
a first energy absorber for absorbing laser light reflected by the safety mirror.
Optionally, a photoelectric conversion device is disposed in the photoelectric conversion circuit,
the energy feedback module further comprises a reversing mirror, and the reversing mirror is used for changing the direction of the laser reflected by the optical wedge, so that the laser reflected by the optical wedge is transmitted to the photoelectric conversion device after being reversed;
or
The photoelectric conversion device faces to the reflecting surface of the optical wedge, so that the laser reflected by the optical wedge is directly transmitted to the photoelectric converter.
Optionally, the laser light source module includes one laser, and the laser directly emits laser light to the main optical path;
or
The laser light source module comprises a plurality of lasers which emit pulse lasers according to time sequence, and the lasers emitted by the lasers are combined and forwarded to the main light path.
Optionally, when the laser light source module includes a plurality of lasers, the laser light source module further includes:
a rotating shaft is arranged on the rotating shaft,
the driving device is used for driving the rotating shaft to rotate; and
the rotating mirror is arranged on the rotating shaft and rotates along with the rotating shaft, and the rotating mirror is used for reflecting the laser emitted by each laser to the main light path;
the number of the rotating mirrors is one, and the rotating mirrors and the rotating shaft are coaxially arranged; or the number of the rotating mirrors is at least two, and the rotating mirrors are arranged outside the rotating shaft and rotate around the rotating shaft.
Optionally, laser phototherapy system is still including the energy attenuation module that is used for attenuating laser intensity on the main light path, the laser light source module the energy attenuation module the energy feedback module with safety shutter follows the main light path sets gradually.
Optionally, the energy attenuation module includes:
an attenuation mirror for reflecting a portion of the laser light on the main optical path;
an attenuation mirror shifting mechanism for inserting or removing the attenuation mirror into or from the main optical path, an
A second energy absorber for absorbing the laser light reflected by the attenuator mirror.
Optionally, the laser phototherapy system still includes the attenuator sets up in groups, every group the attenuator includes work attenuator and at least one debugging attenuator, when debugging attenuator is used for the debugging with the laser attenuation on the main light path to safe debugging scope.
Optionally, laser phototherapy system still including be arranged in to the main light path converge a photosynthetic module of visible pilot light, photosynthetic module is including instruction light source and beam combiner, should instruct light source be used for to beam combiner sends the light source, and this beam combiner is used for assembling instruct light sum laser on the main light path.
Optionally, the laser phototherapy system further includes an optical fiber coupling module, and the optical fiber coupling module includes a focusing mirror for converging the laser on the main optical path into an optical fiber.
The utility model discloses a laser phototherapy system is provided with energy feedback module and safe shutter, can reach the laser intensity on the control chief optical path, can block the laser on the chief optical path again when laser intensity is too big, has improved the security performance of whole laser phototherapy system when using.
Drawings
Fig. 1 is a schematic diagram of an exemplary structure of a laser treatment system according to the present invention after labeling modules;
FIG. 2 is a schematic diagram of the laser treatment system of FIG. 1 with components in the modules labeled;
FIG. 3 is a schematic diagram of an exemplary energy attenuation module;
fig. 4 is a schematic structural diagram of an exemplary laser light source module according to the present invention.
The description of reference numerals in the examples includes:
the device comprises a laser light source module 1, a laser 11, a rotating shaft 12, a rotating mirror 13, a driving device 14 and a forwarding reflecting mirror 15;
the device comprises an energy feedback module 2, an optical wedge 21, a photoelectric conversion circuit 22 and a reversing mirror 23;
the safety shutter 3, the safety mirror 31, the safety mirror displacement mechanism 32, the first energy absorber 33;
the energy attenuation module 4, the attenuation mirror 41, the attenuation mirror shifting mechanism 42, the second energy absorber 43, the working attenuation mirror 411 and the debugging attenuation mirror 412;
a light combining module 5, an indicating light source 51 and a beam combining mirror 52;
the optical fiber coupling module 6, the focusing mirror 61 and the protective mirror 62;
a main light path A and a light splitting path B.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as 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 invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.
The utility model relates to a laser phototherapy system, see fig. 1 and fig. 2, which comprises a laser light source module 1, an energy feedback module 2 and a safety shutter 3, wherein the laser light source module 1, the energy feedback module 2 and the safety shutter 3 are arranged in sequence along a main light path A; the laser light source module 1 is used for emitting laser to a main light path A, and the laser light source module 1 comprises at least one laser 11; the energy feedback module 2 comprises an optical wedge 21 and a photoelectric conversion circuit 22, wherein the optical wedge 21 is used for reflecting laser on the main optical path A in proportion, and the photoelectric conversion circuit is used for receiving the laser reflected by the optical wedge 21 and converting the laser reflected by the optical wedge 21 into electric energy; the safety shutter 3 is used to block the laser light on the main optical path a when the electric power converted by the photoelectric conversion circuit 22 exceeds a preset threshold.
In practical implementation, in order to monitor the converted electric power of the photoelectric conversion circuit 22 in real time, a photoelectric conversion device (e.g., a photodiode) and a measuring device for measuring the electric power converted by the photoelectric conversion device are usually disposed in the photoelectric conversion circuit 22, the laser light reflected by the optical wedge 21 is directed to the photoelectric conversion device, for example, the photoelectric conversion device may be a photodiode, and the measuring device may include a voltage measuring device and a current measuring device, etc. In particular, the photoelectric conversion circuit 22 may be any conventional circuit capable of converting light energy into electric energy.
When the laser phototherapy system works, the laser source module 1 emits laser at the initial position of the main optical path a, the optical wedge 21 in the energy feedback module 2 reflects part of the laser proportionally, the part of the laser irradiates on the photoelectric conversion device of the photoelectric conversion circuit 22 for photoelectric conversion, and the rest of the laser penetrates through the optical wedge 21 and continues to be emitted along the main optical path a (generally, the light transmittance of the optical wedge is very large, the reflected laser occupies a small proportion of the incident laser, for example, the reflected light can only occupy five thousandths of the incident light), the intensity of the laser reflected by the optical wedge 21 is measured by using the electric power converted by the photoelectric conversion circuit 22, and therefore the intensity of the emitted laser in the main optical path a can be converted. When the intensity of the laser emitted from the main optical path A is within the safety range, the safety shutter 3 is opened, and the laser emitted along the main optical path A through the optical wedge 21 is emitted through the safety shutter 3; when the intensity of the laser emitted from the main optical path a is greater than the safety range, the safety shutter 3 is closed, and the laser emitted along the main optical path a through the optical wedge 21 is blocked at the safety shutter 3. In practical implementation, the safety shutter 3 can be manually closed when the laser intensity on the main optical path a exceeds a safety range; a controller may also be configured in the phototherapy system, the controller is respectively connected to the measuring device or the safety shutter 3, and when the laser intensity on the main optical path a exceeds a safety range, the controller controls the safety shutter 3 to block the laser on the main optical path a.
In some embodiments, the energy feedback module 2 further includes a reversing mirror 23, and the reversing mirror 23 is configured to change the direction of the laser light reflected by the optical wedge 21, so that the laser light reflected by the optical wedge 21 is transmitted to the photoelectric conversion device after being reversed. For example, in fig. 1 and 2, one switching mirror 23 is provided and the laser beam reflected from the optical wedge 21 is directly irradiated on the photoelectric conversion device, but in actual implementation, a plurality of switching mirrors 23 may be provided as long as the laser beam irradiation reflected from the optical wedge 21 can be transmitted to the photoelectric conversion device. In other embodiments, no turning mirror 23 is provided and the photoelectric conversion device faces the reflective surface of the optical wedge 21, so that the laser light reflected by the optical wedge 21 is directly transmitted to the photoelectric conversion device (not shown).
In some embodiments, referring to fig. 1 and 2 in combination, the safety shutter 3 includes a safety mirror 31, a safety mirror displacement mechanism 32, and a first energy absorber 33, the safety mirror displacement mechanism 32 being configured to insert or remove the safety mirror 31 into or from the main optical path a, and the first energy absorber 33 being configured to absorb laser light reflected by the safety mirror 31.
When the laser intensity on the main optical path a is in the normal range, the safety mirror 31 is moved out of the main optical path a by the safety mirror displacement mechanism 32; when the laser intensity on the main optical path a exceeds the normal range, the safety mirror shifting mechanism 32 shifts the safety mirror 31 into the main optical path a, and the safety mirror 31 reflects all the laser in the main optical path a to the first energy absorber 33. The safety mirror shifting mechanism 32 may move the safety mirror 31 in a linear movement manner, a rotational movement manner, a curved movement manner, or the like, or may control the position of the safety mirror by using the magnetic attraction force of the electromagnet, as long as the safety mirror 31 can be moved into and out of the main optical path a, for example, the safety mirror shifting mechanism 32 may include a linear guide and a moving base moving along the linear guide, and the safety mirror 31 may be mounted on the moving base and moved along the linear guide along with the moving base.
In some embodiments, referring to fig. 1, 2, and 4, the laser light source module 1 includes a plurality of lasers 11 that emit pulsed laser according to a time sequence, the laser emitted by each laser 11 is combined and forwarded to the main optical path a, at this time, the light sources emitted by each laser 11 are combined with the main optical path a after being transmitted along each light splitting path B, and the laser light source module 1 provided with the plurality of lasers 11 is beneficial to improving the laser output power of the whole laser phototherapy system, and is suitable for treatment of more tissue portions and more treatment purposes. Of course, in practical implementation, the laser light source module 1 may also include only one laser 11, and in this case, the laser 11 directly emits laser light to the main light path a (not shown).
When the laser light source module includes a plurality of lasers, in some embodiments, referring to fig. 1, fig. 2, and fig. 4, the laser light source module 1 further includes a rotating shaft 12, a rotating mirror 13 disposed on the rotating shaft 12 and rotating with the rotating shaft 12, and a driving device 14 for driving the rotating shaft 12 to rotate, where the rotating mirror 13 is configured to reflect the laser light emitted by each laser 11 to the main optical path a. The driving device 14 may only include a power member such as an electric motor or a motor; it may also include both a power member and a transmission mechanism, and the transmission mechanism transmits the power of the power member to the rotating shaft 12, for example, the transmission mechanism may be a speed increaser, a speed reducer, or the like.
Specifically, referring to fig. 1 and 2, the number of the rotating mirrors 13 may be one, the rotating mirrors 13 are coaxially disposed with the rotating shaft 12, the rotating mirrors 13 are obliquely disposed relative to the respective branched optical paths B and the main optical path a, and when any laser 11 emits pulse laser, the rotating mirrors 13 rotate to corresponding angles to reflect the laser emitted by the laser 11 to the main optical path a; referring to fig. 4, there may be at least two rotating mirrors 13, where the rotating mirrors 13 are disposed on the periphery of the rotating shaft 12 and rotate around the rotating shaft 12, and when any laser 11 emits pulse laser light, the rotating mirror 13 corresponding to the laser 11 rotates along with the rotating shaft 12 to the main optical path a, and reflects the laser light emitted by the laser 11 to the main optical path a, and in an actual implementation process, the lasers 11 may be disposed on the same plane or may not be disposed on the same plane.
In some embodiments, referring to fig. 1 and fig. 2, the laser emitting directions of the lasers 11 are the same, and the laser light source module 1 may further be provided with a relay reflector 15 for emitting the laser light of each light splitting path B to the rotating mirror 13 in a direction-reversing manner. For example, in fig. 1 and 2, two relay mirrors 15 are disposed on each optical branch path B.
When the laser light source module comprises a plurality of lasers, in other embodiments, the laser light source module further comprises a light splitting path reflector and a light splitting path reflector moving mechanism, each laser is correspondingly provided with one light splitting path reflector, and each light splitting path moving mechanism moves the light splitting path reflector to the main light path in a moving but non-rotating mode.
In some embodiments, referring to fig. 1 and fig. 2, the laser phototherapy system further includes an energy attenuation module 4 for attenuating the intensity of the laser light on the main optical path a, and the laser light source module 1, the energy attenuation module 4, the energy feedback module 2, and the safety shutter 3 are sequentially disposed along the main optical path a. The laser phototherapy system is beneficial to more accurately adjusting the intensity of the laser on the main light path to the target intensity, and the reliability of the laser phototherapy system is improved.
In some embodiments, referring to fig. 1, 2 and 3 in combination, the energy attenuation module 4 includes an attenuation mirror 41, an attenuation mirror displacement mechanism 42 and a second energy absorber 43, wherein the attenuation mirror 41 is used for proportionally reflecting a part of the laser light on the main optical path a, the attenuation mirror displacement mechanism 42 is used for inserting or removing the attenuation mirror 41 into or from the main optical path a, and the second energy absorber 43 is used for absorbing the laser light reflected by the attenuation mirror 41. When the attenuation mirror 41 is used for attenuating the laser intensity on the main optical path a, the attenuation mirror shifting mechanism 42 inserts the corresponding attenuation mirror 41 into the main optical path a, when the laser intensity of the main optical path a is not required to be attenuated, the attenuation mirror shifting mechanism 42 shifts the attenuation mirror 41 out of the main optical path a, and when the attenuation degree is required to be adjusted, the position of each attenuation mirror is adjusted through the attenuation mirror shifting mechanism 42, and the corresponding attenuation mirror is shifted into the main optical path a. In practical implementation, the attenuation mirror displacement mechanism 42 may be a linear rail, and the attenuation mirror 41 is disposed on a moving seat of the linear rail and can move along the track of the linear rail; of course, the attenuation shift mechanism may also insert or remove the attenuation mirror 41 into or from the main optical path a in a rotating manner.
In some embodiments, referring to fig. 3, the attenuation mirrors 41 are arranged in groups, each group of attenuation mirrors 41 includes a working attenuation mirror 411 and at least one debugging attenuation mirror 412, the debugging attenuation mirror 412 is used for attenuating the laser light on the main optical path a to a safe debugging range during debugging, the attenuation mirror shifting mechanism 42 inserts the debugging attenuation mirror 412 into the main optical path a during debugging, and during treatment, the attenuation mirror shifting mechanism 42 shifts the working attenuation mirror 411 into the main optical path a, which is beneficial for preventing a debugging operator from being burned by high-intensity laser light. In practical implementation, the number of the working attenuation mirrors 411 may be one or more.
In some embodiments, referring to fig. 1 to 3, each group of attenuation mirrors 41 shares the same attenuation mirror shifting mechanism 42, which is beneficial to simplify the structure of the energy attenuation module 4, reduce the spatial size thereof, and reduce the cost.
In some embodiments, referring to fig. 1 and fig. 2, the laser phototherapy system further includes a light combining module 5 for converging visible indication light into the main optical path a, where the light combining module 5 includes an indication light source 51 and a beam combining mirror 52, the indication light source 51 is used for emitting a light source to the beam combining mirror 52, and the beam combining mirror 52 is used for combining the indication light and the laser light on the main optical path a. Set up this photosynthetic module 5 and can more directly perceivedly see laser outgoing direction, be favorable to accurate treatment and calibration.
In some embodiments, referring to fig. 1 and 2, the laser phototherapy system further includes a fiber coupling module 6, where the fiber coupling module 6 includes a focusing mirror 61 for converging the laser light on the main optical path a into an optical fiber.
In some embodiments, referring to fig. 1 and 2, the fiber coupling module 6 further includes a shielding lens 62 for shielding the optical fiber, and the shielding lens 62 is disposed between the optical fiber and the focusing lens 61.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them.
In the description of the invention, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A laser phototherapy system, comprising:
the laser light source module is used for emitting laser to the main light path and comprises at least one laser;
the energy feedback module comprises an optical wedge and a photoelectric conversion circuit, wherein the optical wedge is used for reflecting laser on a main optical path in proportion, and the photoelectric conversion circuit is used for receiving the laser reflected by the optical wedge and converting the laser reflected by the optical wedge into electric energy; and
a safety shutter for blocking the laser light on the main optical path when the electric power converted by the photoelectric conversion circuit exceeds a preset threshold;
the laser light source module, the energy feedback module and the safety shutter are sequentially arranged along a main light path.
2. The laser phototherapy system of claim 1 wherein: the safety shutter includes:
a safety mirror;
a safety mirror displacement mechanism for inserting or removing the safety mirror into or out of the main optical path; and
a first energy absorber for absorbing laser light reflected by the safety mirror.
3. The laser phototherapy system of claim 1 wherein: the photoelectric conversion circuit is provided with a photoelectric conversion device,
the energy feedback module further comprises a reversing mirror, and the reversing mirror is used for changing the direction of the laser reflected by the optical wedge, so that the laser reflected by the optical wedge is transmitted to the photoelectric conversion device after being reversed;
or
The photoelectric conversion device faces to the reflecting surface of the optical wedge, so that the laser reflected by the optical wedge is directly transmitted to the photoelectric converter.
4. The laser phototherapy system of claim 1 wherein:
the laser light source module comprises the laser, and the laser directly emits laser to the main light path;
or
The laser light source module comprises a plurality of lasers which emit pulse lasers according to time sequence, and the lasers emitted by the lasers are combined and forwarded to the main light path.
5. The laser phototherapy system of claim 4 wherein: when the laser light source module includes a plurality of lasers, the laser light source module still includes:
a rotating shaft is arranged on the rotating shaft,
the driving device is used for driving the rotating shaft to rotate; and
the rotating mirror is arranged on the rotating shaft and rotates along with the rotating shaft, and the rotating mirror is used for reflecting the laser emitted by each laser to the main light path;
the number of the rotating mirrors is one, and the rotating mirrors and the rotating shaft are coaxially arranged; or the number of the rotating mirrors is at least two, and the rotating mirrors are arranged outside the rotating shaft and rotate around the rotating shaft.
6. The laser phototherapy system of claim 1 wherein: the energy attenuation module is used for attenuating the intensity of the laser on the main light path, and the laser light source module, the energy attenuation module, the energy feedback module and the safety shutter are arranged in sequence along the main light path.
7. The laser phototherapy system of claim 6 wherein the energy attenuation module comprises:
an attenuation mirror for reflecting a portion of the laser light on the main optical path;
an attenuation mirror shifting mechanism for inserting or removing the attenuation mirror into or from the main optical path, an
A second energy absorber for absorbing the laser light reflected by the attenuator mirror.
8. The laser phototherapy system of claim 7 wherein:
the attenuator sets up in groups, every group the attenuator includes work attenuator and at least one debugging attenuator, when debugging attenuator is used for debugging, with the laser attenuation on the main light path to safe debugging scope.
9. The laser phototherapy system of claim 1 wherein: the light source of the indicating light is used for emitting light to the beam combining mirror, and the beam combining mirror is used for converging the indicating light and the laser on the main light path.
10. The laser phototherapy system of claim 1 wherein: the optical fiber coupling module comprises a focusing mirror used for converging the laser on the main optical path into the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860354.8U CN211097096U (en) | 2019-10-31 | 2019-10-31 | Laser phototherapy system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860354.8U CN211097096U (en) | 2019-10-31 | 2019-10-31 | Laser phototherapy system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211097096U true CN211097096U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860354.8U Active CN211097096U (en) | 2019-10-31 | 2019-10-31 | Laser phototherapy system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211097096U (en) |
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2019
- 2019-10-31 CN CN201921860354.8U patent/CN211097096U/en active Active
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