CO 2 Laser pain relief device

Abstract

CO2 laser analgesic device belongs to the field of medical device technology, and its purpose is to solve the problem of heating of laser therapeutic devices. Fever therapy has the risk of inducing cancer. In the present invention, the light emitted by the CO2 laser is divided into two beams through a beam splitter, one beam feeds back the parameters of the pulsed laser to the instrument control system through a feedback system, and the other beam enters the aperture through a climbing system, a first beam expander, a third total reflection mirror, a second beam expander, and a fourth total reflection mirror in sequence, and transmits the light beam with a limited diameter to the fifth total reflection mirror through the aperture, and the light beam emitted by the fifth total reflection mirror is irradiated to the lesion area; the overall control system controls the instrument control system, the laser light source, and the switch of the aperture aperture control system; the instrument control system controls the CO2 laser, adjusts the input parameters of the aperture aperture control system, and receives the pulsed laser parameters of the CO2 laser output fed back by the feedback system; the aperture aperture control system adjusts the aperture size of the aperture; the laser power supply and the CO2 laser are connected for power supply.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a CO2 laser analgesic device. Background Art

[0002] With the development of laser technology, lasers are increasingly used in the medical field. Laser analgesia is an application of laser technology in the medical field. The advantages of using lasers for pain treatment are safety, simple operation, wide application range, and no side effects. It is widely used in surgical anesthesia, postoperative analgesia, and the treatment of various pains. At present, there are many types of lasers used for laser analgesia, such as semiconductor lasers, He-Ne lasers, argon ion lasers, etc.

[0003] CO2 lasers are used for cutting, burning, drilling, and marking in industry, and for surgical operations and surgical cauterization in medicine. They are used in surgery in clinic, such as gynecological CO2 laser therapeutic devices for cutting and burning. In the existing technology, there are no relevant literature and reports on the use of CO2 lasers for pain relief and analgesia at home and abroad, and there are no relevant therapeutic devices for pain treatment at home and abroad, which is a blank. Summary of the invention

[0004] The purpose of the present invention is to provide a CO2 laser analgesic device to solve the problem of heating of laser therapeutic devices in the prior art. Fever therapy has the risk of inducing cancer. It can realize the control and adjustment of the duration of laser pulse output irradiation, laser pulse interval, laser pulse width, laser pulse energy, and laser pulse beam diameter.

[0005] To achieve the above-mentioned purpose, the CO2 laser analgesic device of the present invention comprises an overall control system, a laser power supply, an instrument control system, an aperture control system, a CO2 laser, a beam splitter, a feedback system, a climbing system, a first beam expander, a third total reflector and an aperture;

[0006] The light emitted by the CO2 laser is divided into two beams by the beam splitter, one beam feeds back the parameters of the pulsed laser to the instrument control system through the feedback system, and the other beam enters the first beam expander through the climbing system. The laser beam expanded by the first beam expander enters the aperture through the third total reflection mirror, and the light beam with a limited diameter is irradiated to the lesion area through the aperture;

[0007] The overall control system controls the switches of the instrument control system, the laser light source and the aperture control system; the instrument control system controls the CO2 laser, adjusts the input parameters of the aperture control system and receives the pulse laser parameters output by the CO2 laser fed back by the feedback system; the aperture control system adjusts the size of the aperture of the aperture; the laser power supply and the CO2 laser are connected for power supply.

[0008] The CO2 laser analgesic device also includes a second beam expander, a fourth total reflector and a fifth total reflector;

[0009] The laser beam expanded by the first beam expander enters the second beam expander through the third total reflection mirror. The laser beam expanded by the second beam expander enters the aperture through the fourth total reflection mirror. The light beam with limited diameter is transmitted to the fifth total reflection mirror through the aperture. The light beam emitted by the fifth total reflection mirror irradiates the lesion area.

[0010] The instrument control system includes a CO2 laser control module, an aperture control system module, and a feedback adjustment module;

[0011] The CO2 laser control module controls the laser pulse output and shutoff, the laser pulse output irradiation duration, the laser pulse interval, the laser pulse width and the pulse energy regulation;

[0012] The aperture control system module adjusts the input parameters of the aperture control system to change the diameter of the light beam;

[0013] The feedback adjustment module monitors and adjusts the pulse laser parameters output by the CO2 laser.

[0014] The climbing system comprises a first total reflection mirror and a second total reflection mirror. After being split by the beam splitter, another laser beam passes through the first total reflection mirror and the second total reflection mirror in sequence and is horizontally incident on the first beam expander.

[0015] The diameter of the light beam is changed and the divergence angle is expanded by the first beam expander, so that the beam diameter of the pulsed laser output by the CO2 laser is expanded to 5 times the original diameter.

[0016] The diameter of the laser beam is changed and the divergence angle is expanded by the second beam expander, so that the beam diameter of the pulsed laser passing through the first beam expander is expanded by 10 times.

[0017] The operating voltage of the overall control system is 220V, and the operating voltage of the laser power supply is 24V-220V.

[0018] The feedback system includes an energy probe and a transmission line. The energy probe collects parameters of the pulse laser output by the CO2 laser and transmits the parameters to the instrument control system through the transmission line.

[0019] The first beam expander and the second beam expander are arranged in parallel.

[0020] The diaphragm is an aperture diaphragm.

[0021] The CO2 laser output light parameters are: laser radiation wavelength is 10.6 microns; laser repetition frequency is 10-1000Hz; radiation flux density is 5.5-250.5 mW / cm2 , the pulse duration is 0.2-19.2 milliseconds; the radiation divergence is 1.5×10 -3 - 15×10 -3 Rad.

[0022] The beneficial effects of the present invention are: the CO2 laser analgesic device of the present invention realizes the control and adjustment of the duration of laser pulse output irradiation, laser pulse interval, laser pulse width, laser pulse energy, and laser pulse beam diameter. It has the following effects:

[0023] (1) The CO2 laser analgesic device provided by the present invention can output 10.6 Low-energy pulsed laser has strong transmittance to human tissue and is conducive to deep irradiation.

[0024] (2) The CO2 laser analgesic device provided by the present invention can heat the affected area and promote the penetration of drugs by adjusting the power of the pulsed laser output. By applying a plaster targeting the disease to the affected area and irradiating the plaster with the CO2 laser analgesic device, the plaster can be heated and the drug penetration can be promoted, thereby achieving rapid absorption of the drug.

[0025] (3) The present invention utilizes a feedback system to collect the pulse light parameters output by the CO2 laser and feeds them back to the instrument control system to achieve real-time monitoring and adjustment.

[0026] (4) The CO2 laser analgesic device provided by the present invention uses the first beam expander or includes the second beam expander to expand the beam diameter of the pulsed laser output by the CO2 laser from 2 mm to 150 mm, thereby achieving large-area treatment and directly acting on the painful area. It can directly irradiate the painful area for pain such as radiculitis, chronic pain in the limbs and joints, trauma, tumors, and intervertebral disc diseases, and has an analgesic therapeutic effect.

[0027] (5) The present invention adjusts the beam diameter of the pulsed laser through an aperture diaphragm so that the output pulsed laser beam is suitable for lesions at different locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the CO2 laser analgesic device of the present invention. DETAILED DESCRIPTION

[0029] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] See attached Figure 1 The CO2 laser analgesic device of the present invention comprises an overall control system, a laser power supply, an instrument control system, an aperture control system, a CO2 laser, a beam splitter, a feedback system, a climbing system, a first beam expander, a third total reflector and an aperture;

[0031] The light emitted by the CO2 laser is divided into two beams by the beam splitter, one beam feeds back the parameters of the pulsed laser to the instrument control system through the feedback system, and the other beam enters the first beam expander through the climbing system. The laser beam expanded by the first beam expander enters the aperture through the third total reflection mirror, and the light beam with a limited diameter is irradiated to the lesion area through the aperture;

[0032] The overall control system controls the switches of the instrument control system, the laser light source and the aperture control system; the instrument control system controls the CO2 laser, adjusts the input parameters of the aperture control system and receives the pulse laser parameters output by the CO2 laser fed back by the feedback system; the aperture control system adjusts the size of the aperture of the aperture; the laser power supply and the CO2 laser are connected for power supply.

[0033] The CO2 laser analgesic device also includes a second beam expander, a fourth total reflector and a fifth total reflector;

[0034] The laser beam expanded by the first beam expander enters the second beam expander through the third total reflection mirror. The laser beam expanded by the second beam expander enters the aperture through the fourth total reflection mirror. The light beam with limited diameter is transmitted to the fifth total reflection mirror through the aperture. The light beam emitted by the fifth total reflection mirror irradiates the lesion area.

[0035] The CO2 laser has an output wavelength of 10.6 of pulsed laser.

[0036] The instrument control system includes a CO2 laser control module, an aperture control system module, and a feedback adjustment module;

[0037] The CO2 laser control module controls the laser pulse output and shutoff, the laser pulse output irradiation duration, the laser pulse interval, the laser pulse width and the pulse energy regulation;

[0038] The aperture control system module adjusts the input parameters of the aperture control system to change the diameter of the light beam;

[0039] The feedback adjustment module monitors and adjusts the pulse laser parameters output by the CO2 laser.

[0040] The climbing system comprises a first total reflection mirror and a second total reflection mirror. After being split by the beam splitter, another laser beam passes through the first total reflection mirror and the second total reflection mirror in sequence and is horizontally incident on the first beam expander.

[0041] The fourth total reflection mirror is used to reflect the pulse laser reflected by the third total reflection mirror, and to make the pulse laser horizontally incident on the second beam expander.

[0042] In this embodiment, the distance between the first total reflective mirror and the second total reflective mirror is 15 cm.

[0043] The diameter of the light beam is changed and the divergence angle is expanded by the first beam expander, so that the beam diameter of the pulsed laser output by the CO2 laser is expanded to 5 times the original diameter.

[0044] The diameter of the laser beam is changed and the divergence angle is expanded by the second beam expander, so that the beam diameter of the pulsed laser passing through the first beam expander is expanded by 10 times.

[0045] The operating voltage of the overall control system is 220V, and the operating voltage of the laser power supply is 24V-220V.

[0046] The feedback system includes an energy probe and a transmission line. The energy probe collects parameters of the pulse laser output by the CO2 laser and transmits the parameters to the instrument control system through the transmission line.

[0047] The first beam expander and the second beam expander are arranged in parallel.

[0048] The aperture is used to limit the beam diameter of the pulsed laser after being expanded by the first beam expander and the second beam expander, and the diameter of the output beam can be adjusted according to the size of the lesion area.

[0049] The overall control system has an operating voltage of 220V and includes a plurality of external interfaces for connecting to a PC. The PC is connected to the overall control system and is used to input parameters to the instrument control system and the aperture control system.

[0050] The CO2 laser has a continuous rated output power of 30 , power stability The wavelength of the output pulse laser is 10.6 , the beam diameter range is , the operating frequency is 0~60 .

[0051] The wavelength of the pulsed laser output by the CO2 laser is 10.6 The specific parameters of CO2 laser output light are: laser radiation wavelength is 10.6 microns; laser repetition frequency is 10-1000Hz; radiation flux density is 5.5-250.5 mW / cm 2 , the pulse duration is 0.2-19.2 milliseconds; the radiation divergence is 1.5×10 -3 - 15×10 -3Rad. It is used to directly irradiate the painful area for pain such as radiculitis, chronic pain in the limbs and joints, trauma, tumors, and intervertebral disc disease. The irradiation time is 3-15 minutes. The radiation source is a low-energy laser, which corrects the pain by local continuous irradiation of the area containing nociceptive neurons and (or) afferent neurons.

[0052] The CO2 laser analgesic device of the present application, wherein the CO2 laser can output a wavelength of 10.6 The far-infrared pulse laser is easily absorbed by biological tissues and produces strong and penetrating radiation, which is suitable for defocused irradiation of lesions. After a large number of animal and human experiments in the early stage, we have developed a combination of pulse, power and other parameters. The CO2 laser analgesic device we developed has great development potential and application prospects in analgesia.

[0053] Our team brings together personnel from pain medicine, optics, physics, and physical therapy. After years of experimental verification, we have jointly completed this technology and assembled multiple therapeutic devices. At present, the CO2 laser pain therapy device is a unique technology, and the parameters set are also unique. The unique feature of the low-energy radiation of the CO2 laser pain therapy device we developed is its ability to reduce the frequency of repeated responses of neurons. It directly irradiates the painful area for pain such as radiculitis, chronic pain in the limbs and joints, trauma, tumors, and intervertebral disc diseases, and the pain relief effect is very obvious. In this regard, we have completed the treatment verification of a large number of pain patients. At the same time, the tissue is not heated during the irradiation process, which is crucial to eliminating the risk of cancer.

Claims

1. CO2 laser analgesia device, characterized in that: It includes overall control system, laser power supply, instrument control system, aperture control system, CO2 laser, beam splitter, feedback system, climbing system, first beam expander, third total reflector and aperture; The light emitted by the CO2 laser is divided into two beams by the beam splitter, one beam feeds back the parameters of the pulsed laser to the instrument control system through the feedback system, and the other beam enters the first beam expander through the climbing system. The laser beam expanded by the first beam expander enters the aperture through the third total reflection mirror, and the light beam with a limited diameter is irradiated to the lesion area through the aperture; The overall control system controls the switches of the instrument control system, the laser light source and the aperture control system; the instrument control system controls the CO2 laser, adjusts the input parameters of the aperture control system and receives the pulse laser parameters output by the CO2 laser fed back by the feedback system; The aperture control system adjusts the aperture size of the aperture; the laser power supply is connected to the CO2 laser for power supply; The CO2 laser analgesic device also includes a second beam expander, a fourth total reflector and a fifth total reflector; The laser beam expanded by the first beam expander enters the second beam expander through the third total reflector, and the laser beam expanded by the second beam expander enters the aperture through the fourth total reflector, and the light beam with limited diameter is transmitted to the fifth total reflector through the aperture, and the light beam emitted by the fifth total reflector irradiates the lesion area; The instrument control system includes a CO2 laser control module, an aperture control system module, and a feedback adjustment module; The CO2 laser control module controls the laser pulse output and shutoff, the laser pulse output irradiation duration, the laser pulse interval, the laser pulse width and the pulse energy regulation; The aperture control system module adjusts the input parameters of the aperture control system to change the diameter of the light beam; The feedback adjustment module monitors and adjusts the pulse laser parameters output by the CO2 laser; The climbing system comprises a first total reflection mirror and a second total reflection mirror. After being split by the beam splitter, another laser beam passes through the first total reflection mirror and the second total reflection mirror in sequence and is horizontally incident on the first beam expander.

2. The CO2 laser analgesic device according to claim 1, characterized in that: The diameter of the light beam is changed and the divergence angle is expanded by the first beam expander, so that the beam diameter of the pulsed laser output by the CO2 laser is expanded to 5 times the original diameter.

3. The CO2 laser analgesic device according to claim 1, characterized in that: The diameter of the laser beam is changed and the divergence angle is expanded by the second beam expander, so that the beam diameter of the pulsed laser passing through the first beam expander is expanded by 10 times.

4. The CO2 laser analgesic device according to claim 1, characterized in that: The operating voltage of the overall control system is 220V, and the operating voltage of the laser power supply is 24V-220V.

5. The CO2 laser analgesic device according to claim 1, characterized in that: The feedback system includes an energy probe, through which parameters of the pulsed laser output by the CO2 laser are collected and transmitted to the instrument control system.

6. The CO2 laser analgesic device according to claim 1, characterized in that: The first beam expander and the second beam expander are arranged in parallel.

7. The CO2 laser analgesic device according to claim 1, characterized in that: The CO2 laser output light parameters are: laser radiation wavelength is 10.6 microns; laser repetition frequency is 10-1000Hz; radiation flux density is 5.5-250.5 mW / cm 2 , the duration of the pulse is 0.2-19.2 milliseconds; The radiation divergence is 1.5×10 -3 -15×10 -3 Rad.

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