CN113274125A - High-power holmium laser therapeutic instrument - Google Patents
High-power holmium laser therapeutic instrument Download PDFInfo
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- CN113274125A CN113274125A CN202110683713.2A CN202110683713A CN113274125A CN 113274125 A CN113274125 A CN 113274125A CN 202110683713 A CN202110683713 A CN 202110683713A CN 113274125 A CN113274125 A CN 113274125A
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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
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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
- A61B18/24—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 with a catheter
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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
- A61B18/26—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 for producing a shock wave, e.g. laser lithotripsy
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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
- A61B2018/2205—Characteristics of fibres
- A61B2018/2211—Plurality of fibres
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Abstract
The invention relates to a high-power holmium laser therapeutic instrument, which comprises: the optical fiber combiner comprises an output optical fiber and first to Nth input optical fibers, wherein N is an integer greater than 1; the laser generating module comprises a first laser generating device and an Nth laser generating device, the first laser generating device is connected with the first input optical fiber, the laser generated by the first laser generating device is input into the first input optical fiber, the Nth laser generating device is connected with the Nth input optical fiber, and the laser generated by the Nth laser generating device is input into the Nth input optical fiber. Compared with the prior art, the invention uses the optical fiber combiner to combine a plurality of optical fibers into one optical fiber, thereby reducing the size and the operation noise of the instrument while ensuring the output power of the laser, providing more energy frequency combinations and providing more choices for clinical treatment.
Description
Technical Field
The invention relates to a laser therapeutic apparatus, in particular to a high-power holmium laser therapeutic apparatus.
Background
Urinary diseases are various and occur in the urinary systems such as ureter, bladder and kidney, the common diseases include prostatic hyperplasia, urinary system tumor, urinary calculus and the like, and the diseases have the symptoms of dysuria, weakness of limbs and the like, thereby seriously affecting the life quality of people. The method for treating the urinary system diseases generally comprises drug therapy and surgical therapy, wherein holmium laser therapy is a safer and more effective treatment mode at present. Holmium laser therapy has several advantages: the holmium laser surgery has short time, low damage to human soft tissues, difficult bleeding, good postoperative recovery and less sequelae; can be used for treating urinary calculus, ureter and urethra stricture and polyp.
The holmium laser has two main technical parameters: single pulse energy (J) and pulse frequency (Hz), the main indicators are power: laser power is the single pulse energy x pulse frequency in watts. At present, most of the existing holmium laser therapeutic instruments on the market use a single optical fiber to output laser energy, the optical fiber is connected with a laser generator, and laser generated by the laser generator is transmitted to an operation position through the optical fiber, so that the operation is performed. In the operation treatment, the demand on a high-power holmium laser treatment instrument is more, the laser energy of the existing single-fiber holmium laser treatment instrument is 0.5J-4J, and the maximum output power can be 80W, but the existing single-fiber holmium laser treatment instrument usually needs a complex laser system to output the required power, so that the volume of the laser treatment instrument is overlarge, larger noise can be generated in the operation process, and the energy frequency combination is less.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a high-power holmium laser therapeutic apparatus, which uses an optical fiber combiner to combine a plurality of optical fibers into one optical fiber, thereby ensuring the output power of laser, reducing the size and operation noise of the apparatus, providing more energy frequency combinations and providing more choices for clinical treatment.
The purpose of the invention can be realized by the following technical scheme:
a high-power holmium laser therapeutic instrument comprises:
the optical fiber combiner comprises an output optical fiber, a first input optical fiber, a second input optical fiber and an Nth input optical fiber, wherein N is an integer greater than 1;
the laser generation module comprises a first laser generation device, a second laser generation device and an Nth laser generation device, wherein the first laser generation device is connected with a first input optical fiber, laser generated by the first laser generation device is input into the first input optical fiber, the second laser generation device is connected with a second input optical fiber, laser generated by the second laser generation device is input into the second input optical fiber, the Nth laser generation device is connected with the Nth input optical fiber, and laser generated by the Nth laser generation device is input into the Nth input optical fiber.
Further, the first laser generation device, the second laser generation device to the nth laser generation device are all holmium laser generation devices.
Further, the holmium laser generating apparatus includes: the system comprises a starting switch, a solid laser, a photoelectric detector, an analog-to-digital conversion unit and a micro control unit; the starting switch is electrically connected with the solid laser and the micro control unit and used for switching on and off the solid laser, the solid laser is used for outputting pulse type holmium laser, the photoelectric detector is arranged in the solid laser and is electrically connected with the micro control unit through the analog-to-digital conversion unit, when the laser light intensity in the solid laser is greater than a preset threshold value, the solid laser is opened, the laser is input into the input optical fiber, and if the laser light intensity is not greater than the preset threshold value, the waiting is continued.
Furthermore, the solid laser comprises an activation medium, a pumping energy source and a resonant cavity, wherein the pumping energy source is arranged at the periphery of the activation medium and used for providing external energy, the activation medium receives the external energy and excites the external energy to form holmium laser, and the resonant cavity comprises a plurality of optical lenses and is used for amplifying the holmium laser.
Furthermore, the activating medium is a holmium-doped yttrium aluminum garnet crystal rod.
Furthermore, the pumping energy source is a pulse xenon lamp, and can provide external energy to excite the activation medium, so that low-energy particles are excited to a high-energy state, the particle number inversion is realized, the activation medium forms holmium laser, and the pulse-type luminous pumping energy source can excite the activation medium to form pulse-type holmium laser.
Furthermore, holmium laser formed by the activating medium is continuously reflected and amplified in a resonant cavity to reach certain intensity, and the resonant cavity comprises a transflective unit which comprises a reflecting mirror and a light splitting prism.
Further, an output optical fiber of the optical fiber combiner is connected with the ureteroscope in a matched mode.
Further, the holmium laser therapeutic instrument further comprises a shell, wherein the shell is sleeved outside the optical fiber beam combiner and the laser generation module and used for protecting the optical fiber beam combiner and the laser generation module.
Further, the shape of the shell is approximately a cuboid shell.
Compared with the prior art, the invention uses the optical fiber combiner to combine a plurality of optical fibers into one optical fiber, thereby reducing the size and the operation noise of the instrument while ensuring the output power of the laser, providing more energy frequency combinations and providing more choices for clinical treatment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a holmium laser generation device;
FIG. 3 is a schematic external view of an optical fiber combiner;
reference numerals: 1. the optical fiber beam combiner comprises an optical fiber beam combiner 2, a laser generation module 21, a starting switch 22, a solid laser 221, an activation medium 222, a pumping light source 223, a transflective unit 23, a photoelectric detector 24, an analog-to-digital conversion unit 25, a micro-control unit 3, a ureteroscope 4 and a shell.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. Parts are exaggerated in the drawing where appropriate for clarity of illustration.
Example 1:
a high-power holmium laser therapeutic apparatus, as shown in fig. 1, comprising:
the optical fiber combiner 1 comprises an output optical fiber, a first input optical fiber, a second input optical fiber and an Nth input optical fiber, wherein N is an integer greater than 1;
the laser generation module 2 comprises a first laser generation device, a second laser generation device and an Nth laser generation device, wherein the first laser generation device is connected with a first input optical fiber, the laser generated by the first laser generation device is input into the first input optical fiber, the second laser generation device is connected with a second input optical fiber, the laser generated by the second laser generation device is input into the second input optical fiber, the Nth laser generation device is connected with the Nth input optical fiber, and the laser generated by the Nth laser generation device is input into the Nth input optical fiber;
the output optical fiber of the optical fiber combiner 1 is matched and connected with the ureteroscope 3, so that laser is emitted to the part with urinary diseases, and the operations of ablation and removal of human calculi or prostate are realized;
the shell 4, the shell 4 cover is in the outside of optical fiber beam combiner 1 and laser generation module 2 for protect optical fiber beam combiner 1 and laser generation module 2, the shape of shell 4 is approximately cuboid casing.
This application uses optic fibre to close a bundle ware with many optic fibres and be an optic fibre, has reduced holmium laser therapeutic instrument's volume when having guaranteed laser output power, disassembles a laser system originally and simplifies, closes through many optic fibres and restraints can reach maximum output power 80W to instrument size and operational noise have been reduced, more energy frequency combination has been provided moreover, has provided more selections for clinical treatment.
In this embodiment, the first laser generation device, the second laser generation device, and the nth laser generation device are all holmium laser generation devices. As shown in fig. 2, the holmium laser generating apparatus includes: a start switch 21, a solid state laser 22, a photodetector 23, an analog to digital conversion unit 24 and a micro control unit 25.
The solid-state laser 22 includes an activation medium 221, a pumping energy source 222, and a resonant cavity, where the pumping energy source 222 is installed at the periphery of the activation medium 221 for providing external energy, the activation medium 221 receives the external energy and excites the external energy to form holmium laser, the holmium laser is reflected back and forth in the resonant cavity, and the resonant cavity includes a plurality of optical lenses for amplifying the holmium laser.
The activation medium 221 is a holmium-doped yttrium aluminum garnet crystal rod. The pumping energy 222 is a pulse xenon lamp, and can provide external energy to excite the activation medium 221, so that low-energy particles are excited to a high-energy state, the particle number inversion is realized, the activation medium 221 forms holmium laser, the pulse-type luminescent pumping energy 222 can excite the activation medium 221 to form pulse-type holmium laser, and the frequency of the holmium laser depends on the luminescent frequency of the xenon lamp. In this embodiment, the trigger circuit is connected to the pumping energy source 222, and when the trigger circuit generates an electrical signal, the high-voltage generating circuit formed by transforming AC220 supplies energy to the pulse-type xenon lamp through the capacitive energy storage module, and the light energy of the pulse-type xenon lamp is fully condensed onto the holmium-doped yttrium aluminum garnet crystal rod, so that the activation medium 221 completes the population inversion, and the holmium-doped yttrium aluminum garnet crystal rod is excited to generate radiation, and oscillates in the resonant cavity, thereby forming a holmium laser output with a wavelength of 2100 nm.
A resonant cavity is an important optical device of a laser that can store and confine a portion of the energy of the stimulated radiation in several resonant cavity modes. The resonator cavity may determine laser output parameters such as laser output power, oscillation mode, divergence angle, etc. The resonant cavity is generally composed of two plane or spherical reflectors, one of which is a total reflection diaphragm and the other is a partial reflection diaphragm, in this embodiment, the resonant cavity includes a transflective unit 223, the transflective unit 223 includes a reflector and a light splitting prism, and the holmium laser formed by the activating medium 221 is continuously reflected and amplified in the resonant cavity to reach a certain intensity.
The start switch 21 is electrically connected with the solid laser 22 and the micro control unit 25, the solid laser 22 is used for outputting pulse holmium laser, and the photodetector 23 is arranged in the solid laser 22 and is electrically connected with the micro control unit 25 through the analog-to-digital conversion unit 24. The pumping energy 222 in the solid laser 22 works to activate the medium 221 to form holmium laser, but the holmium laser has weak intensity and is reflected and amplified in the resonant cavity; the photoelectric detector 23 detects the light intensity in the solid laser in real time, when the light intensity of the laser in the solid laser 11 is greater than a preset threshold value, the holmium laser is considered to meet the output requirement, the solid laser 22 is turned on, the holmium laser generated by the solid laser 22 is input into the input optical fiber and is sent into the ureteroscope 3 through the optical fiber beam combiner 1, and if the light intensity of the laser is not greater than the preset threshold value, the laser continues to wait.
The optical fiber combiner 1 is a fused biconical taper end-face pumping coupling device, and the diameters of a fiber core and a cladding are reduced in equal proportion, so that the end face of an optical fiber changes from the front end face of the biconical taper to the final rear end face of the biconical taper. In this embodiment, the optical fiber combiner 1 includes 1 output optical fiber, a first input optical fiber, a second input optical fiber, and a third input optical fiber, and the first input optical fiber, the second input optical fiber, and the third input optical fiber can be placed in the same glass sleeve, and the glass sleeve and the optical fibers are fused and tapered together, so that the diameters of the fiber core and the cladding of the optical fibers are reduced in equal proportion, and the end surface of the optical fiber changes from before tapering to after tapering, and finally is fused into one output optical fiber. The appearance of the optical fiber combiner 1 in this application is shown in fig. 3.
This application includes a plurality of holmium laser generation devices, and the laser that every holmium laser generation device generated inputs an input fiber respectively, and many input fibers close through optical fiber beam combiner 1 and restraint for an output fiber, carry out follow-up treatment, compare in single fiber holmium laser therapeutic instrument, this application is showing the volume that has reduced the therapeutic instrument when guaranteeing laser output power, simple structure, low cost.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A high-power holmium laser therapeutic instrument is characterized by comprising:
the optical fiber combiner (1) comprises an output optical fiber, a first input optical fiber, a second input optical fiber and an Nth input optical fiber, wherein N is an integer greater than 1;
the laser generation module (2) comprises a first laser generation device, a second laser generation device and an Nth laser generation device, wherein the first laser generation device is connected with a first input optical fiber, laser generated by the first laser generation device is input into the first input optical fiber, the second laser generation device is connected with a second input optical fiber, laser generated by the second laser generation device is input into the second input optical fiber, the Nth laser generation device is connected with the Nth input optical fiber, and laser generated by the Nth laser generation device is input into the Nth input optical fiber.
2. The high-power holmium laser therapeutic instrument according to claim 1, characterized in that the first laser generating device, the second laser generating device to the Nth laser generating device are all holmium laser generating devices.
3. The high-power holmium laser therapeutic instrument according to claim 2, characterized in that the holmium laser generating device comprises: the device comprises a starting switch (21), a solid laser (22), a photoelectric detector (23), an analog-to-digital conversion unit (24) and a micro control unit (25); the starting switch (21) is electrically connected with the solid laser (22) and the micro control unit (25) and used for opening and closing the solid laser (22), the solid laser (22) is used for outputting pulse holmium laser, and the photoelectric detector (23) is arranged in the solid laser (22) and is electrically connected with the micro control unit (25) through the analog-to-digital conversion unit (24).
4. A high power holmium laser treatment instrument according to claim 3, characterized in that the solid state laser (22) comprises an activation medium (221), a pumping energy source (222) and a resonant cavity, the pumping energy source (222) is installed at the periphery of the activation medium (221) for providing external energy, the activation medium (221) receives the external energy and excites to form holmium laser, and the resonant cavity comprises a plurality of optical lenses for amplifying the holmium laser.
5. The high-power holmium laser therapeutic instrument according to claim 4, characterized in that the activating medium (221) is a holmium-doped yttrium aluminum garnet crystal rod.
6. The high power holmium laser treatment instrument according to claim 4, characterized in that the pumping energy source (222) is a pulsed xenon lamp.
7. The high-power holmium laser therapeutic instrument according to claim 4, characterized in that the resonant cavity comprises a transflective unit (223), and the transflective unit (223) comprises a reflector and a beam splitter prism.
8. The high-power holmium laser therapeutic instrument according to claim 1, characterized in that the output optical fiber of the optical fiber combiner (1) is connected with the ureteroscope (3) in a matching way.
9. The high-power holmium laser therapeutic instrument according to claim 1, characterized in that the holmium laser therapeutic instrument further comprises a housing (4), and the housing (4) is sleeved outside the optical fiber combiner (1) and the laser generating module (2) and used for protecting the optical fiber combiner (1) and the laser generating module (2).
10. A high power holmium laser treatment instrument according to claim 9, characterized in that the shape of the casing (4) is approximately a cuboid housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683713.2A CN113274125A (en) | 2021-06-21 | 2021-06-21 | High-power holmium laser therapeutic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683713.2A CN113274125A (en) | 2021-06-21 | 2021-06-21 | High-power holmium laser therapeutic instrument |
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| Publication Number | Publication Date |
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| CN113274125A true CN113274125A (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110683713.2A Pending CN113274125A (en) | 2021-06-21 | 2021-06-21 | High-power holmium laser therapeutic instrument |
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| CN (1) | CN113274125A (en) |
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2021
- 2021-06-21 CN CN202110683713.2A patent/CN113274125A/en active Pending
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