Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a treatment pattern conversion method based on an adjustable spiral line type laser spot, which can solve the above problems.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
A therapeutic pattern conversion method based on adjustable spiral line type laser spots comprises the following steps: s1, selecting a reference treatment laser beam output by a carbon dioxide treatment machine, and selecting a focusing mirror and a treatment head which are matched with the reference treatment laser beam; s2, setting a light spot conversion device at the output end of the reference treatment laser beam, wherein the reference treatment laser beam sequentially passes through the light spot conversion device, the pattern scanner, the focusing mirror and the treatment head; s3, correspondingly controlling the light spot conversion device through a microprocessor in the carbon dioxide therapeutic machine, so that the reference therapeutic laser beam passing through the light spot conversion device is converted into a spiral linear laser light spot with a proper size, and the spiral linear laser light spot sequentially passes through the pattern scanner, the focusing mirror and the therapeutic head to generate a therapeutic pattern matched with a therapeutic part of a patient.
Further, the light spot conversion device comprises a first reflecting mirror and a second reflecting mirror, and the first reflecting mirror and the second reflecting mirror are respectively connected with a first vibrating mirror motor and a second vibrating mirror motor.
Further, the first galvanometer motor and the second galvanometer motor are controlled by the microprocessor, the first galvanometer motor can drive the first reflecting mirror to swing, and the second galvanometer motor can drive the second galvanometer motor to swing.
Further, the first mirror is swung to change the position of the reference therapeutic laser beam in the X direction, and the second mirror is swung to change the position of the reference therapeutic laser beam in the Y direction.
Further, in the step S3, the spiral light spot with the appropriate size is calculated based on an archimedes spiral formula, the polar coordinate equations are r=a+bθ, a and b are real numbers, r is the radius of the specified spiral light spot, a is the distance from the start point to the polar coordinate origin, b is the value corresponding to the increase of the unit angle r when the spiral is increased, the changing parameter a is equivalent to the rotating spiral, and the parameter b controls the distance between two adjacent curves, and can be obtained according to the planar cartesian coordinate equation of the archimedes spiral: c=r×cos (θ), d=r×sin (θ), where the C value is the amount of movement of the reference therapeutic laser beam in the X direction, and the D value is the amount of movement of the reference therapeutic laser beam in the Y direction.
The invention has the beneficial effects that: the treatment light spot output by the final device of the method is in a spiral line shape, has small damage area and weak pain feeling when being applied to the skin, is beneficial to postoperative recovery, has short recovery period, can be freely adjusted in size, does not need to replace a focusing lens or a treatment head, and is simple to operate and low in cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a path taken by a reference treatment laser beam based on a treatment pattern conversion method for an adjustable helical laser spot according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a spot-converting apparatus according to an embodiment of the invention;
FIG. 3 is a treatment pattern formed by a 0.12mm laser spot according to an embodiment of the present invention;
FIG. 4 is a treatment pattern formed by a 1.3mm laser spot according to an embodiment of the present invention;
FIG. 5 is a treatment pattern formed by a 1.3mm laser spot according to an embodiment of the present invention;
Fig. 6 is an enlarged view of a single 1.3mm laser spot according to an embodiment of the present invention.
In the figure: 1. a first reflecting mirror; 2. a vibrating mirror motor I; 3. a second reflecting mirror; 4. a vibrating mirror motor II; 5. a 0.12mm laser spot; 6. 1.3mm laser spot; 7. 1.3mm spiral line laser spot; 8. and (5) a thermal protection zone.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1-2, the treatment pattern conversion method based on adjustable spiral line type laser spots according to the embodiment of the invention comprises the following steps: s1, selecting a reference laser beam output by a carbon dioxide therapeutic machine, and selecting a focusing mirror and a therapeutic head which are matched with the reference laser beam; s2, setting a light spot conversion device at the output end of the reference laser beam, wherein the reference laser beam sequentially passes through the light spot conversion device, the pattern scanner, the focusing mirror and the treatment head; s3, correspondingly controlling the light spot conversion device through a microprocessor in the carbon dioxide therapeutic machine, so that the reference laser beam passing through the light spot conversion device is converted into a spiral linear laser light spot with a proper size, and the spiral linear laser light spot sequentially passes through the pattern scanner, the focusing mirror and the therapeutic head to generate a therapeutic pattern matched with a therapeutic part of a patient.
In the method, a plurality of light spots of the reference treatment laser beam can be converted into a plurality of spiral light spots by swinging the first reflecting mirror 1 and the second reflecting mirror 3 of the light spot conversion device, the first reflecting mirror 1 and the second reflecting mirror 3 are respectively driven by the first vibrating mirror motor 2 and the second vibrating mirror motor 4 by taking the spiral light spots as the reference, and the vibrating mirror motor has the characteristics of high response speed, high swinging frequency, accurate and controllable rotating angle and the like. Different reference voltages can rotate the galvanometer voltage by different angles. The circuit adopts a 16-bit chip LTC2642, and precisely outputs-5.00V to +5.00V voltage through a program control chip. According to the characteristics of the galvanometer motors, every 0.2V voltage enables an output light path to move by 1mm, the + -5V voltage enables the light path to move by + -20 mm, and the reflectors fixed on the rotating shafts of the two galvanometer motors are concentric, but the axial direction is 90 degrees.
In the method of the invention, the pattern scanner can scan the two-dimensional pattern of the treatment area of the patient, and output the corresponding treatment pattern by taking the spiral light spot as the new light spot through corresponding control.
In the method of the invention, the focusing mirror focuses the laser beam and can be matched with the treatment head to keep the treatment receiving surface just at the laser focus.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes the above technical solutions of the present invention in detail by a specific usage manner.
In specific use, a laser beam with a single-point laser spot of 0.12mm is selected as a reference treatment laser beam, and a matched focusing mirror and treatment head, namely a 50mm focusing mirror (with a focal distance of 50 mm) and an F50S treatment head (with a skeleton length of 50 mm) are selected, so that the laser beam with the single-point laser spot of 0.12mm can be ensured to keep a treatment receiving surface exactly at a laser focus, and a treatment pattern formed by a laser spot 5 with 0.12mm is finally formed when no adjustment is performed by using a spot conversion device, as shown in fig. 3.
When the treatment light spot needs to be increased, as shown in fig. 4, when the 1.3mm laser light spot 6 is needed, the corresponding focusing lens and the corresponding treatment head need to be replaced, and when a plurality of treatment positions of a patient are treated and the conditions are different, different light spots can be judged and selected according to the corresponding conditions, so that the focusing lens and the treatment head can be replaced continuously, and the time is wasted.
As shown in fig. 5, the laser beam with the single-point laser spot of 0.12mm is still used as the reference treatment laser beam, the spot conversion device is added at the output end of the laser beam, when the treatment spot needs to be increased, for example, a 1.3mm spiral line type laser spot 7 is needed, at this time, a corresponding value can be set on the control panel of the carbon dioxide treatment machine, and the microprocessor in the carbon dioxide treatment machine can correspondingly control the spot conversion device to work, so as to obtain the spiral line type laser spot with the required size. The control of the light spot conversion device is based on an Archimedes spiral formula, the polar coordinate formula r=a+bθ, a and b are real numbers, r is a specified radius, a is a distance from a starting point to a polar coordinate origin, b is a value which is correspondingly increased along with each increment of a unit angle r of a spiral line, the changing parameter a is equivalent to rotating the spiral line, and the parameter b controls the distance between two adjacent curves. Defining the coordinates (0, 0) as a starting point, setting a=0 and b=0.035, and the planar cartesian coordinate equation of the archimedes spiral is:
C=r×cos (θ), d=r×sin (θ), where the C value is the amount of movement of the reference therapeutic laser beam in the X direction, and the D value is the amount of movement of the reference therapeutic laser beam in the Y direction.
In summary, according to the treatment requirement, different parameters can be set to obtain spiral line type laser spots with different sizes, and the spiral line type laser spot is used as a light spot to form a required treatment pattern, so that the size of the light spot in the process can be freely adjusted without changing a focusing mirror or a treatment head, the operation is simple, the cost is low, meanwhile, the spiral line type laser spot is spiral line type, a matt area in the spiral line is a thermal protection area 8, and compared with a solid light spot with the same size, the spiral line type laser spot acts on the skin, has a skin protection area, has little skin damage and weak pain, is beneficial to postoperative recovery, and has a short recovery period.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.