Light path structure and laser therapeutic instrument using same
By employing the optical path structure of 405nm and 638nm lasers in the laser therapy device, the problem of the single function of existing devices has been solved, and a multifunctional treatment effect of simultaneous sterilization and anti-inflammation has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PHOTONSTREAM LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-04-21
AI Technical Summary
Existing laser treatment equipment has limited functionality and cannot perform multiple treatment operations such as anti-inflammatory and sterilization simultaneously.
It employs at least two laser sources of different wavelengths, namely 405nm and 638nm lasers, and forms a unique optical path structure through a specific combination of optical fibers and lenses to achieve multiple therapeutic functions.
It can perform multiple treatment operations such as sterilization and anti-inflammation at the same time, improving treatment efficiency and the practicality of the equipment.
Smart Images
Figure CN224152699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser technology, and in particular to an optical path structure and a laser therapy device using the optical path structure. Background Technology
[0002] The medical application of lasers refers to the technology of using high-intensity monochromatic light generated by stimulated emission to conduct disease research, diagnosis, and treatment. The light source is called a laser, which achieves tissue cutting, hemostasis, and targeted therapy through thermal effects, mechanical effects, and photochemical reactions, covering multiple clinical fields such as ophthalmology, surgery, and oncology. The equipment mainly consists of a laser source, optical system, control system, and cooling system, with a wavelength range covering 308nm to 980nm and a penetration depth of 1–2cm.
[0003] Currently, laser therapy equipment generally uses near-infrared lasers, and most of them form the optical path with a single wavelength laser for treatment at the affected area. For example, some laser devices can be used to sterilize a patient's wound and then perform anti-inflammatory treatment, but they cannot perform anti-inflammatory and sterilization simultaneously, making their functions relatively limited. Therefore, this utility model proposes an optical path structure and a laser therapy device using this optical path structure to at least partially solve the problems that may exist in the prior art. Utility Model Content
[0004] In view of the above problems, the present invention provides an optical path structure that overcomes or at least partially solves the above problems, and a laser therapy device using the optical path structure.
[0005] To address the aforementioned issues, some embodiments of this utility model disclose an optical path structure, comprising: at least two laser light sources of different wavelengths, each of which is connected to the first end of a first optical fiber with a diameter of 125µm;
[0006] The second end of the first optical fiber is positioned at the focal point of the first lens, forming an optical path from the focal point to the lens;
[0007] The second lens is located on the same straight line as the first lens, forming a parallel light path;
[0008] A second optical fiber with a diameter of 400µm to 440µm has its first end located at the focal point of the second lens, forming a converging optical path from the second lens to its focal point.
[0009] The second end of the second optical fiber is connected to the treatment end, forming an outgoing light path from the focal point of the second lens to the treatment end.
[0010] Optionally, the laser source includes at least one 405nm laser and one 638nm laser;
[0011] The 405nm laser and the 638nm laser are respectively connected to the first end of the first optical fiber.
[0012] Optionally, three 405nm lasers are provided, and one 638nm laser is provided;
[0013] The four first optical fibers connected to the 405nm laser and the 638nm laser are bundled together into one bundle.
[0014] Optionally, an SMA905 connector is also included;
[0015] The second end of the first optical fiber is connected to an SMA905 connector, the end of which is located at the focal point of the first lens.
[0016] Some embodiments of this utility model also disclose a laser therapy device, including the above-described optical path structure;
[0017] The first lens and the second lens of the optical path structure are disposed on the handle, and the second end of the first optical fiber is connected to the first end of the handle and is located at the focal position of the first lens;
[0018] The second end of the handle is provided with a needle;
[0019] The first end of the second optical fiber is located at the focal point of the second lens, and the second end of the second optical fiber extends into the inside of the needle.
[0020] Optionally, the second end of the first optical fiber is integrated with the SMA905 connector;
[0021] The SMA905 connector is connected to the first end of the handle via a nut.
[0022] Optionally, the needle is connected to the second end of the handle via a nut.
[0023] This utility model has the following advantages:
[0024] The system utilizes at least two laser light sources of different wavelengths, each connected to a first end of a 125µm diameter first optical fiber. The second end of the first optical fiber is positioned at the focal point of a first lens, forming an optical path from the focal point to the lens. A second lens is aligned with the first lens, forming a parallel optical path. A second optical fiber with a diameter of 400µm to 440µm has its first end located at the focal point of the second lens, forming a converging optical path from the second lens to its focal point. The second end of the second optical fiber is connected to the treatment end, forming an outgoing optical path from the focal point of the second lens to the treatment end. By employing at least two laser light sources of different wavelengths, combined with specific optical fibers and lens combinations, a unique optical path structure is formed, enabling the convergence and output of lasers of different wavelengths to the treatment end. This achieves multiple functions, solving the problem of limited functionality in existing laser therapy equipment and allowing for simultaneous performance of multiple treatment operations. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of an optical path structure provided in one embodiment of the present invention;
[0026] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of section A;
[0027] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of section B;
[0028] Figure 4 This is a schematic diagram of the split structure of a laser therapy device provided in one embodiment of the present invention;
[0029] Figure 5 This is a schematic diagram of the structure of a laser therapy device provided in one embodiment of the present invention.
[0030] In the diagram: 101, laser source; 102, first optical fiber; 103, SMA905 connector; 104, handle; 105, second optical fiber; 106, needle; 111, 405nm laser; 112, 638nm laser; 141, first lens; 142, second lens. Detailed Implementation
[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] Reference Figure 1The diagram shows a schematic representation of an embodiment of the optical path structure of this utility model, which specifically includes: at least two laser light sources 101 of different wavelengths, each laser light source 101 being connected to a first end of a first optical fiber 102 with a diameter of 125µm; the second end of the first optical fiber 102 being disposed at the focal point of a first lens 141, forming an optical path from the focal point to the lens; a second lens 142 being located on the same straight line as the first lens 141, forming a parallel optical path; a second optical fiber 105 with a diameter of 400µm to 440µm, the first end of which is located at the focal point of the second lens 142, forming a converging optical path from the second lens 142 to its focal point; and the second end of the second optical fiber 105 being connected to a treatment end, forming an outgoing optical path from the focal point of the second lens 142 to the treatment end.
[0033] By setting up at least two laser light sources 101 with different wavelengths, combined with specific optical fibers and lenses, a unique optical path structure is formed. This allows for the convergence and output of lasers of different wavelengths to the treatment end, achieving multiple functions and solving the problem of single-function existing laser treatment equipment. Multiple treatment operations can be performed simultaneously. For example, when treating wounds, one laser can be used for sterilization, while the other is used for anti-inflammation, simultaneously treating the wound, shortening treatment time and improving treatment efficiency.
[0034] In some embodiments of this application, the laser source 101 includes at least one 405nm laser 111 and one 638nm laser 112; the 405nm laser 111 and the 638nm laser 112 are respectively connected to the first end of the first optical fiber 102.
[0035] The aforementioned laser source 101 includes a 405nm laser 111 and a 638nm laser 112, enabling it to emit laser light with a wavelength of 405nm and a laser light with a wavelength of 638nm, respectively. The 405nm laser has a good bactericidal effect, while the 638nm laser is often used to promote tissue repair and reduce inflammation. The combination of the two gives the optical path structure multiple therapeutic functions, including sterilization and anti-inflammation, further enhancing the practicality of the equipment.
[0036] For example, in the treatment of skin inflammation and infection, the laser emitted by the 405nm laser kills bacteria at the infected site, while the laser emitted by the 638nm laser promotes skin tissue repair and inflammation reduction, thus accelerating patient recovery.
[0037] Furthermore, such as Figures 1 to 3 As shown, there are three 405nm lasers 111 and one 405nm laser 112; the four first optical fibers 102 connected to the 405nm laser 111 and the 638nm laser 112 are bundled into one bundle.
[0038] The three 405nm lasers 111 and one 405nm laser 111 mentioned above are concentrated at the front end by four 125µm first optical fibers 102 and output to the lens position. By combining the corresponding optical fibers, the laser energy ratio is optimized, thereby improving the sterilization and anti-inflammatory effects, enhancing the treatment effect, and meeting clinical needs. For example, in the treatment of deep wound infections, the three 405nm lasers provide strong sterilization energy, while the 638nm laser assists in tissue repair and anti-inflammation, achieving highly efficient treatment.
[0039] In some embodiments of this application, an SMA905 connector is also included; the second end of the first optical fiber 102 is connected to the SMA905 connector 103, the end of which is located at the focal point of the first lens 141. The SMA905 connector 103 facilitates the connection and fixation of the first optical fiber 102 to the first lens 141, ensuring the stability and accuracy of the optical path, reducing the difficulty of optical path setup and maintenance, and improving the reliability and lifespan of the equipment. For example, during equipment assembly or maintenance, the SMA905 connector allows for quick and accurate installation of the first optical fiber in the correct position, reducing debugging time and ensuring accurate laser transmission.
[0040] In some embodiments of this application, a laser therapy device is also disclosed, including the above-described optical path structure; a first lens 141 and a second lens 142 of the optical path structure are disposed on a handle 104, and a second end of a first optical fiber 102 is connected to a first end of the handle 104 and is located at the focal point of the first lens 141; a needle 106 is provided at the second end of the handle 104; a first end of a second optical fiber 105 is located at the focal point of the second lens 142, and a second end of the second optical fiber 105 extends into the needle 106.
[0041] Applying the aforementioned optical path structure to a laser therapy device, the design of the handle 104 and needle 106 facilitates operation and use, enabling precise laser output to the affected area, improving treatment convenience and accuracy, and meeting practical clinical needs. For example, during treatment, the doctor can hold the handle and accurately irradiate the lesion site through the needle 106, allowing for precise operation, such as when treating oral diseases. Specifically, it can be used to treat onychomycosis (fungal nail infection). Onychomycosis is caused by fungal infection, and the laser therapy device utilizes the principle of laser-induced fungal eradication. Its core mechanism involves activating photosensitive substances within the fungus using light of a specific wavelength.
[0042] It should be noted that the treatment end of the aforementioned optical path is the tip of the aforementioned needle 106.
[0043] Furthermore, the second end of the first optical fiber 102 is integrated with the SMA905 connector 103; the SMA905 connector 103 is connected to the first end of the handle 104 via a nut.
[0044] The aforementioned first optical fiber 102 is integrated with the SMA905 connector 103, and then connected to the handle 104 via a nut. This further enhances the stability and reliability of the connection, ensuring that the optical path will not shift due to shaking or other factors during use, thus guaranteeing the treatment effect. Even during prolonged treatment operations, this connection method ensures optical path stability, allowing the laser to continuously and accurately act on the affected area, even if the equipment is subjected to slight vibrations.
[0045] Furthermore, the needle 106 is connected to the second end of the handle 104 via a nut. This connection facilitates the installation, removal, and replacement of the needle 106, allowing for the selection of a suitable needle 106 based on different treatment needs, thus improving the versatility and flexibility of the device. For example, when treating wounds of different sizes and depths, different specifications of needles 106 can be quickly replaced to achieve the best treatment effect.
[0046] As an example, this application employs a design that combines four laser fibers—one 638nm (anti-inflammatory) and three 405nm (sterilization)—into a single fiber. The 405nm laser kills fungi by activating photosensitive substances within the fungus, generating reactive oxygen species (ROS), which then destroy the fungal cell structure. This is highly effective against Candida albicans and Aspergillus, and is suitable for treating superficial infections. This design combines the antifungal effect of the 405nm wavelength with the therapeutic effect of the 638nm wavelength (anti-inflammatory). The main unit plus fiber optic treatment handpiece design enables flexible laser transmission and precise positioning. The fiber end can be inserted under the nail for precise irradiation of the lesion area, reducing the number of lasers used and lowering equipment costs.
[0047] The beneficial effects of this application also include the use of a main unit + fiber optic treatment handpiece design. The main unit employs a four-fiber combined output of one 638nm laser and three 405nm lasers. The fiber optics inside the handpiece 104 use non-contact spatial coupling alignment to achieve flexible laser transmission and precise positioning. Specifically, when applied to the treatment of onychomycosis, the fiber end can be inserted into the subungual layer of the nail for precise irradiation of the lesion area. The fiber optic head output from the device is kept clean and free from contamination. The treatment fiber uses a nut clamping method for easy replacement.
[0048] It should be noted that the electrodes of the 405nm laser 111 and the 638nm laser 112 are connected to the drive circuit and can be controlled by a PLC, etc. The above circuits and controls are conventional technical solutions and will not be described in detail here.
[0049] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0050] The above provides a detailed description of the optical path structure and the laser therapy device using the optical path structure provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An optical path structure, characterized by, include: At least two laser sources of different wavelengths, each of which is connected to the first end of a first optical fiber with a diameter of 125µm; The second end of the first optical fiber is positioned at the focal point of the first lens, forming an optical path from the focal point to the lens; The second lens is located on the same straight line as the first lens, forming a parallel light path; A second optical fiber with a diameter of 400µm to 440µm has its first end located at the focal point of the second lens, forming a converging optical path from the second lens to its focal point. The second end of the second optical fiber is connected to the treatment end, forming an outgoing light path from the focal point of the second lens to the treatment end.
2. The optical path structure according to claim 1, characterized by The laser source includes at least one 405nm laser and one 638nm laser; The 405nm laser and the 638nm laser are respectively connected to the first end of the first optical fiber.
3. The optical path structure according to claim 2, characterized in that, There are three 405nm lasers and one 638nm laser. The four first optical fibers connected to the 405nm laser and the 638nm laser are bundled together into one bundle.
4. The optical path structure according to claim 1, characterized by It also includes the SMA905 connector; The second end of the first optical fiber is connected to an SMA905 connector, the end of which is located at the focal point of the first lens.
5. A laser therapy apparatus, characterized by, Includes the optical path structure as described in any one of claims 1 to 4 above; The first lens and the second lens of the optical path structure are disposed on the handle, and the second end of the first optical fiber is connected to the first end of the handle and is located at the focal position of the first lens; The second end of the handle is provided with a needle; The first end of the second optical fiber is located at the focal point of the second lens, and the second end of the second optical fiber extends into the inside of the needle.
6. The laser therapy apparatus according to claim 5, wherein The second end of the first optical fiber is integrated with the SMA905 connector; The SMA905 connector is connected to the first end of the handle via a nut.
7. The laser therapy apparatus according to claim 6, wherein The needle is connected to the second end of the handle via a nut.