CN113017826B - Power-adjustable surgical laser emission system, method and readable storage medium - Google Patents

Power-adjustable surgical laser emission system, method and readable storage medium Download PDF

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CN113017826B
CN113017826B CN202110310168.2A CN202110310168A CN113017826B CN 113017826 B CN113017826 B CN 113017826B CN 202110310168 A CN202110310168 A CN 202110310168A CN 113017826 B CN113017826 B CN 113017826B
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laser
power
gas
subsystem
electrically connected
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CN113017826A (en
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黄仁珠
郭洪伟
陈功发
卢明
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Jiangxi Madishi Technology Co ltd
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Jiangxi Madishi Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00589—Coagulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00601—Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00625—Vaporization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00714—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00744—Fluid flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B2018/2065—Multiwave; Wavelength mixing, e.g. using four or more wavelengths

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Otolaryngology (AREA)
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  • Laser Surgery Devices (AREA)

Abstract

The invention provides a power-adjustable surgical laser emitting system, a power-adjustable surgical laser emitting method and a readable storage medium. The scheme comprises a laser generation subsystem (101), a contact type laser transmission subsystem (102), a detachable cutter head (103) and a cooling subsystem (104); the laser generating subsystem (101) generates laser with adjustable power and transmits the laser to the contact type laser transmission subsystem (102), the contact type laser transmission subsystem (102) is directly connected with the detachable cutter head (103), and the detachable cutter head (103) bears the laser and is cooled through the cooling subsystem (104). The scheme realizes rapid and accurate cutting and ablation of human tissues by generating laser power emission with fixed wavelength and adjustable power.

Description

Power-adjustable surgical laser emission system, method and readable storage medium
Technical Field
The invention relates to the technical field of electrical and electronic equipment, in particular to a power-adjustable surgical laser emitting system, a power-adjustable surgical laser emitting method and a readable storage medium.
Background
Semiconductor lasers can be used for precise cutting, vaporization and ablation of human tissue during surgery. Currently, precise control for surgical procedures has become a critical requirement.
However, the prior art cannot meet the requirements of precise cutting, vaporization, coagulation and ablation of human tissues in clinical surgical operations, mainly because the temperature control precision is not sufficient during the operation, and the optical power of the laser in the operation can not be matched with the operation requirements easily. Therefore, there is a need to develop a highly reliable and temperature-controlled surgical laser emitting system.
Disclosure of Invention
In view of the above, the present invention provides a power-adjustable surgical laser emitting system, method and readable storage medium, which can achieve fast and accurate cutting and ablation of human tissue by generating laser power emission with fixed wavelength and adjustable power.
According to a first aspect of embodiments of the present invention, a power-tunable surgical laser emitting system is provided.
In one or more embodiments, preferably, the power-tunable surgical laser emission system includes: the device comprises a laser generation subsystem, a contact type laser transmission subsystem, a detachable cutter head and a cooling subsystem; the laser generating subsystem generates laser with adjustable power and transmits the laser to the contact type laser transmission subsystem, the contact type laser transmission subsystem is directly connected with the detachable cutter head, and the detachable cutter head bears the laser and is cooled through the cooling subsystem.
In one or more embodiments, preferably, the laser generation subsystem specifically includes:
the laser control circuit comprises a laser pump, a laser control chip, a power supply, a first MOS (metal oxide semiconductor) tube, a first thyristor, a second MOS tube, a second thyristor, a first resistor, a second resistor, a first photoelectric coupling device, a laser switch, laser power control, laser mode control, laser wavelength control and a digital-to-analog conversion chip;
the end 1 of the laser pump is electrically connected with the power supply, the end 6 of the laser pump is grounded, and the end C9, the end C10 and the end C11 of the laser control chip are respectively and electrically connected with the end 3, the end 4 and the end 5 of the laser pump;
the end 3 of the first MOS tube, the end 1 of the first thyristor, the end 2 of the second MOS tube and the end 2 of the second thyristor are electrically connected with the end 2 of the laser pump;
the 2 end of the first MOS tube and the 2 end of the first thyristor are connected with a power supply;
the end 3 of the second MOS transistor and the end 1 of the second thyristor are electrically connected to the end 1 of the first resistor 208, and the end 2 of the first resistor is grounded;
the 1 end of the first MOS tube is electrically connected with the C3 end of the laser control chip;
the 1 end of the second MOS tube is electrically connected with the C18 end of the laser control chip;
the laser switch is electrically connected with the end 1 of the first photoelectric coupling device, the end 2 of the first photoelectric coupling device is grounded, the end 3 of the first photoelectric coupling device is electrically connected with the end 1 of the second resistor, the end 2 of the second resistor is connected with a power supply, and the end 4 of the first photoelectric coupling device is electrically connected with the end D8 of the laser control chip;
the laser power control is electrically connected with the 1 end of the digital-to-analog conversion chip;
the laser mode control is electrically connected with the 2 ends of the digital-to-analog conversion chip;
the laser wavelength control is electrically connected with the 3 ends of the digital-to-analog conversion chip;
and the 4 end, the 5 end and the 6 end of the digital-to-analog conversion chip are respectively and electrically connected with the D12 end, the D14 end and the D16 end of the laser control chip.
In one or more embodiments, preferably, the contact laser transmission subsystem specifically includes:
the system comprises a main control microprocessor, a laser bearing optical fiber, a laser mode selection module, a laser generation switch, a manual control switch, a foot switch, a state indicator lamp, a voltage regulation key, a mode setting key, an LCD display screen, a power indicator lamp, an emergency stop button and a voltage source switch;
the master control microprocessor sends a control command to the laser generation subsystem, the laser bearing optical fiber receives laser emitted by the laser generation subsystem, and the laser bearing optical fiber is used for providing laser for the detachable cutter head;
the laser mode selection module, the laser generation switch, the manual switch and the foot switch input state setting to the master control microprocessor;
the state indicator lamp reads state information in the main control microprocessor, and the voltage adjusting key and the mode setting key are used for inputting running state and mode setting information to the main control microprocessor;
the LCD display screen is used for displaying the current laser power value, the emergency stop button is used for directly cutting off the power supply of the main control microprocessor, the voltage source switch is used for controlling the power switch state of the main control microprocessor, and the power indicator lamp is used for displaying the power switch state.
In one or more embodiments, the detachable tip is preferably 2.5mm in diameter, with the laser passing through the middle of the detachable tip.
In one or more embodiments, preferably, the cooling subsystem specifically includes:
the gas cooling system comprises a gas storage tank, a gas sensor, a gas flow adjusting knob, a gas pressure adjusting knob, a cooling main control chip, a gas temperature display, a gas flow display, a gas type selecting button, a gas supply state indicating lamp and a gas pressure display;
the gas storage tank is internally provided with cold gas, air and carbon dioxide, the gas type selection button is used for selecting one or more of the cold gas, the air and the carbon dioxide to supply gas, and the gas supply state indicator lamp displays that the currently supplied gas is in a preset color;
the gas sensor is used for acquiring the current gas pressure, temperature and gas flow and transmitting the current gas pressure, temperature and gas flow to the cooling main control chip;
the cooling main control chip sends display signals to the gas temperature display, the gas flow display and the gas pressure display;
the gas flow adjusting knob, the gas pressure adjusting knob and the gas type selecting button provide a preset cooling working state for the cooling main control chip.
According to a second aspect of the embodiments of the present invention, there is provided a power-tunable surgical laser emitting method.
In one or more embodiments, preferably, the power-tunable surgical laser emission method includes:
acquiring working power, a working mode and a light wave wavelength, and generating preset power target laser;
acquiring target laser and conveying the laser to the detachable cutter head;
selecting a proper detachable cutter head, outputting laser, and cutting a lesion area;
and acquiring the running state of the cutter head, adjusting the type, flow and pressure of the gas output by the cutter head, and controlling the stability of the temperature of the cutter head.
In one or more embodiments, preferably, the acquiring the working power, the working mode, and the optical wavelength, and generating the preset power target laser specifically includes:
starting a laser generating device for preheating;
generating a laser working mode, wherein the laser working mode comprises continuous light waves, single pulses and repeated pulses;
generating laser working power, wherein the maximum value of the laser working power is 25 watts, and the minimum value of the laser working power is 1 watt;
selecting a preset laser light wave wavelength;
and the laser pump acquires the laser working power, the laser working mode and the laser light wave wavelength to generate the target laser with preset power.
In one or more embodiments, preferably, the acquiring the target laser and delivering the laser to the detachable cutting head specifically includes:
directing laser light to a laser-carrying fiber;
turning off the laser generated by the laser generating device;
after the detachable cutter head is installed, the laser power is adjusted to be the lowest, and a laser generating device is started;
and adjusting the laser power to a preset value, and transmitting the target laser to the cutter head.
In one or more embodiments, preferably, the acquiring the operation state of the tool bit, adjusting the type, flow rate and pressure of the output gas of the tool bit, and controlling the stabilization of the temperature of the tool bit specifically includes:
the cooling provided to the detachable cutting head comprises cold air and liquid coolant;
the flow rate of the cold air is 1 liter per minute, and the flow rate of the liquid coolant is 2 milliliters per minute.
According to a third aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method according to any one of the first aspect of embodiments of the present invention.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
1) according to the embodiment of the invention, the reliability of the control of the laser is ensured by designing the laser generating system with adjustable power.
2) In the embodiment of the invention, the cooling of the detachable cutter head is realized through the cooling subsystem, the temperature control of the cutter head is realized, and the reliability of the operation is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a power tunable surgical laser delivery system in accordance with one embodiment of the present invention.
FIG. 2 is a block diagram of a laser generation subsystem in a power-tunable surgical laser delivery system, in accordance with one embodiment of the present invention.
FIG. 3 is a block diagram of a contact laser delivery subsystem in a power regulated surgical laser delivery system, in accordance with one embodiment of the present invention.
FIG. 4 is a block diagram of a cooling subsystem in a power tunable surgical laser emitting system, in accordance with one embodiment of the present invention.
FIG. 5 is a flow chart of a method of power-tunable surgical laser firing in accordance with one embodiment of the present invention.
FIG. 6 is a flow chart of obtaining the working power, the working mode and the optical wavelength to generate the target laser with the predetermined power in the method for emitting the power-tunable surgical laser according to an embodiment of the present invention.
FIG. 7 is a flow chart of the method of capturing target laser light and delivering the laser light to a detachable cutting head in a power regulated surgical laser firing system according to one embodiment of the present invention.
FIG. 8 is a flow chart of the stabilization of acquiring tool tip operating conditions, adjusting tool tip output gas type, flow rate, and pressure, and controlling tool tip temperature in a method of power-modulated surgical laser firing according to an embodiment of the present invention.
Detailed Description
In some of the flows described in the present specification and claims and in the above figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, with the order of the operations being indicated as 101, 102, etc. merely to distinguish between the various operations, and the order of the operations by themselves does not represent any order of performance. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Semiconductor lasers can be used for precise cutting, vaporization and ablation of human tissue during surgery. Currently, precise control for surgical procedures has become a critical requirement.
However, the prior art cannot meet the requirements of precise cutting, vaporization, coagulation and ablation of human tissues in clinical surgical operations, mainly because the temperature control precision is not sufficient during the operation, and the optical power of the laser in the operation can not be matched with the operation requirements easily. Therefore, there is a need to develop a highly reliable and temperature-controlled surgical laser emitting system.
The embodiment of the invention provides a power-adjustable surgical laser emission system, a power-adjustable surgical laser emission method and a readable storage medium. The scheme realizes rapid and accurate cutting and ablation of human tissues by generating laser power emission with fixed wavelength and adjustable power.
According to a first aspect of embodiments of the present invention, a power-tunable surgical laser emitting system is provided.
FIG. 1 is a block diagram of a power tunable surgical laser delivery system in accordance with one embodiment of the present invention.
In one or more embodiments, as shown in fig. 1, the power-tunable surgical laser emission system preferably includes: a laser generation subsystem 101, a contact laser transmission subsystem 102, a detachable cutter head 103, and a cooling subsystem 104; the laser generation subsystem 101 generates laser with adjustable power and transmits the laser to the contact laser transmission subsystem 102, the contact laser transmission subsystem 102 is directly connected to the detachable cutter head 103, and the detachable cutter head 103 carries the laser and is cooled by the cooling subsystem 104.
In the embodiment of the invention, the system is particularly divided into four parts, and the laser generating subsystem mainly produces laser with adjustable power and selectable modes. The contact type laser transmission subsystem is mainly used for transmitting control signals and laser, the detachable cutter head is mainly used for bearing laser, and the cooling subsystem is mainly used for cooling the detachable cutter head.
FIG. 2 is a block diagram of a laser generation subsystem in a power-tunable surgical laser delivery system, in accordance with one embodiment of the present invention.
As shown in fig. 2, in one or more embodiments, preferably, the laser generation subsystem 101 specifically includes:
the laser control system comprises a laser pump 201, a laser control chip 202, a power supply 203, a first MOS (metal oxide semiconductor) tube 204, a first thyristor 205, a second MOS tube 206, a second thyristor 207, a first resistor 208, a second resistor 209, a first photoelectric coupling device 210, a laser switch 211, a laser power control 212, a laser mode control 213, a laser wavelength control 214 and a digital-to-analog conversion chip 215;
the 1 end of the laser pump 201 is electrically connected with the power supply 203, the 6 end of the laser pump 201 is grounded, and the C9 end, the C10 end and the C11 end of the laser control chip 202 are respectively electrically connected with the 3 end, the 4 end and the 5 end of the laser pump 201;
the 3 terminal of the first MOS transistor 204, the 1 terminal of the first thyristor 205, the 2 terminal of the second MOS transistor 206, and the 2 terminal of the second thyristor 207 are electrically connected to the 2 terminal of the laser pump 201;
the 2 end of the first MOS transistor 204 and the 2 end of the first thyristor 205 are connected with a power supply;
the 3 terminal of the second MOS transistor 206 and the 1 terminal of the second thyristor 207 are electrically connected to the 1 terminal of the first resistor 208, and the 2 terminal of the first resistor 208 is grounded;
the 1 end of the first MOS transistor 204 is electrically connected with the C3 end of the laser control chip 202;
the 1 end of the second MOS transistor 206 is electrically connected to the C18 end of the laser control chip 202;
the laser switch 211 is electrically connected to the end 1 of the first photoelectric coupling device 210, the end 2 of the first photoelectric coupling device 210 is grounded, the end 3 of the first photoelectric coupling device 210 is electrically connected to the end 1 of the second resistor 209, the end 2 of the second resistor 209 is connected to a power supply, and the end 4 of the first photoelectric coupling device 210 is electrically connected to the end D8 of the laser control chip 202;
the laser power control 212 is electrically connected with the 1 end of the digital-to-analog conversion chip 215;
the laser mode control 213 is electrically connected to 2 ends of the digital-to-analog conversion chip 215;
the laser wavelength control 214 is electrically connected with the 3 ends of the digital-to-analog conversion chip 215;
the 4 terminal, the 5 terminal, and the 6 terminal of the digital-to-analog conversion chip 215 are electrically connected to the D12 terminal, the D14 terminal, and the D16 terminal of the laser control chip 202, respectively.
In the embodiment of the invention, the switching signal is coupled in through a photoelectric coupler, the analog quantity is converted into the digital quantity for the control information and is input into the control chip, the control chip directly sends the corresponding data to the laser pump according to the preset coding mode for output, and the corresponding output power and the output waveform can be controlled and produced through a circuit composed of the first MOS transistor 204, the first thyristor 205, the second MOS transistor 206 and the second thyristor 207.
FIG. 3 is a block diagram of a contact laser delivery subsystem in a power tunable surgical laser emitting system, in accordance with one embodiment of the present invention.
As shown in fig. 3, in one or more embodiments, preferably, the contact laser transmission subsystem 102 specifically includes:
a main control microprocessor 301, a laser carrying optical fiber 302, a laser mode selection module 303, a laser generation switch 304, a manual switch 305, a foot switch 306, a status indicator lamp 307, a voltage regulation key 308, a mode setting key 309, an LCD display screen 310, a power indicator lamp 311, an emergency stop button 312 and a voltage source switch 313;
the master control microprocessor 301 sends a control command to the laser generation subsystem 101, the laser bearing fiber 302 receives laser emitted by the laser generation subsystem 101, and the laser bearing fiber 302 is used for providing laser to the detachable cutter head 103;
the laser mode selection module 303, the laser generation switch 304, the manual switch 305, and the foot switch 306 input status settings to the master control microprocessor 301;
the status indicator light 307 reads status information in the master control microprocessor 301, and the voltage adjustment button 308 and the mode setting button 309 are used for inputting operating status and mode setting information to the master control microprocessor 301;
the LCD display screen 310 is used for displaying the current laser power value, the emergency stop button 312 is used for directly cutting off the power supply of the main control microprocessor 301, the voltage source switch 313 is used for controlling the power switch state of the main control microprocessor 301, and the power indicator lamp 311 is used for displaying the power switch state.
In the embodiment of the invention, a complete subsystem for laser delivery path and laser control is provided, the subsystem can be used for controlling laser output and generating laser on line manually or by feet during operation, and the running state of the laser can be displayed during execution. The operation is simple while the human-computer interaction capability is realized, and the working efficiency during the operation can be improved.
In one or more embodiments, the detachable tip 103 preferably has a diameter of 2.5mm, and the detachable tip 103 is preferably laser cut in the middle.
FIG. 4 is a block diagram of a cooling subsystem in a power tunable surgical laser emitting system, in accordance with one embodiment of the present invention.
As shown in fig. 4, in one or more embodiments, preferably, the cooling subsystem 104 specifically includes:
a gas storage tank 401, a gas sensor 402, a gas flow adjusting knob 403, a gas pressure adjusting knob 404, a cooling main control chip 405, a gas temperature display 406, a gas flow display 407, a gas type selecting button 408, a gas supply state indicator lamp 409 and a gas pressure display 410;
the gas storage tank 401 is internally provided with cold gas, air and carbon dioxide, the gas type selection button 408 is used for selecting one or more of the cold gas, the air and the carbon dioxide for supplying gas, and the gas supply state indicator lamp 409 displays that the currently supplied gas is in a preset color;
the gas sensor 402 is configured to obtain a current gas pressure, a current gas temperature, and a current gas flow, and transmit the current gas pressure, the current gas temperature, and the current gas flow to the cooling main control chip 405;
the cooling main control chip 405 sends display signals to the gas temperature display 406, the gas flow display 407 and the gas pressure display 410;
the gas flow adjusting knob 403, the gas pressure adjusting knob 404 and the gas type selecting button 408 provide a preset cooling operation state to the cooling main control chip 405.
In the embodiment of the invention, the structure of the cooling subsystem is arranged, the cutter head is cooled in the whole operation process by adjusting the preset pressure, gas type and temperature through monitoring the pressure, temperature and air flow of the cooling subsystem, so that the temperature of the cutter head is stabilized at the preset required temperature, and the fast and efficient surgical laser operation is realized.
According to a second aspect of the embodiments of the present invention, a power-tunable surgical laser firing method is provided.
FIG. 5 is a flow chart of a method of power-tunable surgical laser firing in accordance with one embodiment of the present invention.
In one or more embodiments, as shown in fig. 5, preferably, the power-adjustable surgical laser emission method includes:
s501, obtaining working power, a working mode and a light wave wavelength, and generating preset power target laser;
s502, obtaining target laser and conveying the laser to the detachable cutter head;
s503, selecting a proper detachable cutter head, outputting laser, and cutting a lesion area;
s504, the operation state of the cutter head is obtained, the type, the flow and the pressure of the gas output by the cutter head are adjusted, and the stability of the temperature of the cutter head is controlled.
In the embodiment of the invention, the high temperature generated by the laser in the process of the whole process of laser generation, laser transmission, cutter head use and cutter head cooling correspondingly can cut off the lesion area, but the laser range is small, and the power is adjustable, so that the scalpel can be fine enough. In order to ensure high precision in the whole laser operation process, enough stable temperature needs to be maintained, so that matched cooling of the cutter head is carried out.
FIG. 6 is a flow chart of the method for generating a target laser with a predetermined power by obtaining the working power, the working mode and the wavelength of light in a power tunable surgical laser emitting method according to an embodiment of the present invention.
As shown in fig. 6, in one or more embodiments, preferably, the acquiring the working power, the working mode, and the optical wavelength to generate the preset-power target laser specifically includes:
s601, starting a laser generation device for preheating;
s602, generating a laser working mode, wherein the laser working mode comprises continuous light waves, single pulses and repeated pulses;
s603, generating laser working power, wherein the maximum value of the laser working power is 25 watts, and the minimum value of the laser working power is 1 watt;
s604, selecting a preset laser light wave wavelength;
s605, the laser pump obtains the laser working power, the laser working mode and the laser wave length, and the target laser with preset power is generated.
In the embodiment of the invention, how to perform the laser generation process is introduced, and the working mode of the corresponding laser, the power of the laser and the light wave wavelength of the laser are all adjustable in the operation process, so that flexible switching in the operation process can be realized, and different types of operations can be performed.
FIG. 7 is a flow chart of the method of capturing target laser light and delivering the laser light to a detachable cutting head in a power regulated surgical laser firing system according to one embodiment of the present invention.
As shown in fig. 7, in one or more embodiments, preferably, the acquiring the target laser and transmitting the laser to the detachable cutting head specifically includes:
s701, guiding laser to a laser bearing optical fiber;
s702, turning off laser generated by the laser generating device;
s703, after the detachable cutter head is installed, adjusting the laser power to be the lowest, and starting a laser generating device;
and S704, adjusting the laser power to a preset value, and transmitting the target laser to the cutter head.
In the embodiment of the invention, the whole process of guiding the laser to the cutter head is provided, the laser power is set to be the lowest value before the transmission of the laser is confirmed to be correct, and the laser power is adjusted to be the preset value after the transmission of the laser is confirmed to be correct, so that the target laser is transmitted to the cutter head.
FIG. 8 is a flow chart of the stabilization of acquiring tool tip operating conditions, adjusting tool tip output gas type, flow rate, and pressure, and controlling tool tip temperature in a method of power-modulated surgical laser firing according to an embodiment of the present invention.
As shown in fig. 8, in one or more embodiments, preferably, the acquiring the operation state of the tool bit, adjusting the type, flow rate and pressure of the output gas of the tool bit, and controlling the stabilization of the temperature of the tool bit specifically includes:
s801, providing cooled coolant comprising cold air and liquid to the detachable cutter head;
and S802, the flow rate of the cold air is 1 liter per minute, and the flow rate of the liquid coolant is 2 milliliters per minute.
In the embodiment of the invention, the temperature of the cutter head can be effectively reduced through a cooling mode combining gas and liquid, and the quick discharge of the gas generated by the cutter head is realized by controlling the actual gas flow in the cutter head.
According to a third aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method according to any one of the first aspect of embodiments of the present invention.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
1) according to the embodiment of the invention, the reliability of the control of the laser is ensured by designing the laser generating system with adjustable power.
2) In the embodiment of the invention, the cooling of the detachable cutter head is realized through the cooling subsystem, the temperature control of the cutter head is realized, and the reliability of the operation is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (4)

1. A power-regulated surgical laser firing system, comprising: a laser generation subsystem (101), a contact laser transmission subsystem (102), a detachable cutter head (103) and a cooling subsystem (104); the laser generating subsystem (101) generates laser with adjustable power and transmits the laser to the contact laser transmission subsystem (102), the contact laser transmission subsystem (102) is directly connected with the detachable cutter head (103), and the detachable cutter head (103) bears the laser and is cooled by the cooling subsystem (104);
the laser generation subsystem (101) specifically comprises:
the laser control circuit comprises a laser pump (201), a laser control chip (202), a power supply (203), a first MOS (metal oxide semiconductor) tube (204), a first thyristor (205), a second MOS tube (206), a second thyristor (207), a first resistor (208), a second resistor (209), a first photoelectric coupling device (210), a laser switch (211), laser power control (212), laser mode control (213), laser wavelength control (214) and a digital-to-analog conversion chip (215);
the 1 end of the laser pump (201) is electrically connected with the power supply (203), the 6 end of the laser pump (201) is grounded, and the C9 end, the C10 end and the C11 end of the laser control chip (202) are respectively and electrically connected with the 3 end, the 4 end and the 5 end of the laser pump (201);
the 3 end of the first MOS tube (204), the 1 end of the first thyristor (205), the 2 end of the second MOS tube (206) and the 2 end of the second thyristor (207) are electrically connected with the 2 end of the laser pump (201);
the 2 end of the first MOS tube (204) and the 2 end of the first thyristor (205) are connected with a power supply;
the 3 end of the second MOS transistor (206) and the 1 end of the second thyristor (207) are electrically connected with the 1 end of the first resistor (208), and the 2 end of the first resistor (208) is grounded;
the 1 end of the first MOS tube (204) is electrically connected with the C3 end of the laser control chip (202);
the 1 end of the second MOS tube (206) is electrically connected with the C18 end of the laser control chip (202);
the laser switch (211) is electrically connected with the end 1 of the first photoelectric coupling device (210), the end 2 of the first photoelectric coupling device (210) is grounded, the end 3 of the first photoelectric coupling device (210) is electrically connected with the end 1 of the second resistor (209), the end 2 of the second resistor (209) is connected with a power supply, and the end 4 of the first photoelectric coupling device (210) is electrically connected with the end D8 of the laser control chip (202);
the laser power control (212) is electrically connected with the 1 end of the digital-to-analog conversion chip (215);
the laser mode control (213) is electrically connected with 2 ends of the digital-to-analog conversion chip (215);
the laser wavelength control (214) is electrically connected with the 3 ends of the digital-to-analog conversion chip (215);
the 4 end, the 5 end and the 6 end of the digital-to-analog conversion chip (215) are respectively and electrically connected with the D12 end, the D14 end and the D16 end of the laser control chip (202);
wherein, power adjustable surgery laser emission system obtains tool bit running state when output laser to adjust tool bit output gas type, flow and pressure, the stability of control tool bit temperature specifically includes:
the cooling provided to the detachable cutting head comprises cold air and liquid coolant;
the flow rate of the cold air is 1 liter per minute, and the flow rate of the liquid coolant is 2 milliliters per minute.
2. The power tunable surgical laser emission system of claim 1, wherein the contact laser transmission subsystem (102) comprises:
the laser control system comprises a main control microprocessor (301), a laser bearing optical fiber (302), a laser mode selection module (303), a laser generation switch (304), a manual switch (305), a foot switch (306), a status indicator lamp (307), a voltage regulation key (308), a mode setting key (309), an LCD display screen (310), a power indicator lamp (311), an emergency stop button (312) and a voltage source switch (313);
the main control microprocessor (301) sends a control command to the laser generation subsystem (101), the laser bearing optical fiber (302) receives laser emitted by the laser generation subsystem (101), and the laser bearing optical fiber (302) is used for providing laser for the detachable cutter head (103);
the laser mode selection module (303), the laser generation switch (304), the manual switch (305) and the foot switch (306) input state settings to the master control microprocessor (301);
the status indicator lamp (307) reads status information in the master control microprocessor (301), and the voltage adjusting key (308) and the mode setting key (309) are used for inputting running status and mode setting information to the master control microprocessor (301);
the LCD display screen (310) is used for displaying the current laser power value, the emergency stop button (312) is used for directly cutting off the power supply of the main control microprocessor (301), the voltage source switch (313) is used for controlling the power switch state of the main control microprocessor (301), and the power indicator lamp (311) is used for displaying the power switch state.
3. A power tuneable surgical laser light emission system as claimed in claim 1, wherein the detachable cutting head (103) has a diameter of 2.5mm and the detachable cutting head (103) passes laser light in the middle.
4. The power tunable surgical laser emission system of claim 1, wherein the cooling subsystem (104), in particular comprises:
the gas cooling system comprises a gas storage tank (401), a gas sensor (402), a gas flow adjusting knob (403), a gas pressure adjusting knob (404), a cooling main control chip (405), a gas temperature display (406), a gas flow display (407), a gas type selection button (408), a gas supply state indicator lamp (409) and a gas pressure display (410);
the gas storage tank (401) is internally provided with cold gas, air and carbon dioxide, the gas type selection button (408) is used for selecting one or more of the cold gas, the air and the carbon dioxide for gas supply, and the gas supply state indicator lamp (409) displays that the currently supplied gas is in a preset color;
the gas sensor (402) is used for acquiring current gas pressure, temperature and gas flow and transmitting the current gas pressure, temperature and gas flow to the cooling main control chip (405);
the cooling main control chip (405) sends display signals to the gas temperature display (406), the gas flow display (407) and the gas pressure display (410);
the gas flow adjusting knob (403), the gas pressure adjusting knob (404) and the gas type selecting button (408) provide a preset cooling working state for the cooling main control chip (405).
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