CN109567934A - A kind of double optical-fiber laser treatment systems - Google Patents
A kind of double optical-fiber laser treatment systems Download PDFInfo
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- CN109567934A CN109567934A CN201811494995.6A CN201811494995A CN109567934A CN 109567934 A CN109567934 A CN 109567934A CN 201811494995 A CN201811494995 A CN 201811494995A CN 109567934 A CN109567934 A CN 109567934A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 238000013532 laser treatment Methods 0.000 title claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002086 nanomaterial Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 12
- 238000002647 laser therapy Methods 0.000 claims description 11
- 229910052775 Thulium Inorganic materials 0.000 claims description 10
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- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
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- 238000002834 transmittance Methods 0.000 claims description 5
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- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 239000002113 nanodiamond Substances 0.000 claims description 3
- 230000001225 therapeutic effect Effects 0.000 claims 9
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- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000001356 surgical procedure Methods 0.000 abstract description 4
- 230000035924 thermogenesis Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 15
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- 238000002560 therapeutic procedure Methods 0.000 description 6
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229940007424 antimony trisulfide Drugs 0.000 description 2
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 description 2
- FBGGJHZVZAAUKJ-UHFFFAOYSA-N bismuth selenide Chemical compound [Se-2].[Se-2].[Se-2].[Bi+3].[Bi+3] FBGGJHZVZAAUKJ-UHFFFAOYSA-N 0.000 description 2
- NNLOHLDVJGPUFR-UHFFFAOYSA-L calcium;3,4,5,6-tetrahydroxy-2-oxohexanoate Chemical compound [Ca+2].OCC(O)C(O)C(O)C(=O)C([O-])=O.OCC(O)C(O)C(O)C(=O)C([O-])=O NNLOHLDVJGPUFR-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
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- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
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- 238000011010 flushing procedure Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
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- OQRNKLRIQBVZHK-UHFFFAOYSA-N selanylideneantimony Chemical compound [Sb]=[Se] OQRNKLRIQBVZHK-UHFFFAOYSA-N 0.000 description 2
- IRPLSAGFWHCJIQ-UHFFFAOYSA-N selanylidenecopper Chemical compound [Se]=[Cu] IRPLSAGFWHCJIQ-UHFFFAOYSA-N 0.000 description 2
- 150000003346 selenoethers Chemical class 0.000 description 2
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- 238000004544 sputter deposition Methods 0.000 description 2
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- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
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Classifications
-
- 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
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/062—Photodynamic therapy, i.e. excitation of an agent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
Abstract
The present invention provides a kind of double optical-fiber laser treatment systems, by the way that two laser transmission channels are arranged, optothermal material wherein is set on the end face of contact type optical fiber, the Thermogenesis of probe is improved using the efficient photothermal conversion of optothermal material, improve optical fiber connector temperature, it is directly contacted with tissue in the course of surgery, the laser with non-contact fiber outgoing cooperates again, so that high temperature and laser act on tissue simultaneously, so that procedure efficiency greatly improves, required laser power is many compared to the decline of traditional fiber non-contact method, reduces the generation of the fuel factor problem of optical fiber.Laser probe uses changeable type structure, after first use, replaces cutter head, does not have to replacement laser conduction optical fiber, is greatly saved consuming cost.
Description
Technical field
The present invention relates to area of medical devices, and in particular to a kind of double optical-fiber laser treatment systems.
Background technique
Laser is because of extraordinary cutting power, good coagulating effectiveness and lesser thermal damage, in surgical field
It gets the attention.The high energy pulse laser that laser generates, is passed out by optical fiber, and optical fiber is entered by endoscope again
Human body, by the incoming position for needing laser therapy of the energy of laser, using the high energy, collimation, action time of laser it is short and
The features such as heat-affected zone is small carries out treatment effectively and safely for patient.Laser is doctor to the interaction of bio-tissue
The physical basis of application is learned, the fuel factor of laser is medically to imitate using the laser tissue being most recognized extensively and earliest
One of answer.Laser light incident bio-tissue, within the scope of light penetration depth, absorbed luminous energy is converted into heat.When heating speed
Needed for degree (thermal energy comes from laser irradiation, related with laser intensity and two factors of tissue absorption coefficient) significantly larger than evaporation tissue
The speed of heat, then tissue is by vaporization quickly.
The laser of the exportable 1.65~2.1um wavelength of thulium-doped fiber laser is widest in all rare earth ions, phase
For solid state laser, have that structure is simple, high-efficient, heat dissipation characteristics are good, narrow linewidth, quality for outputting laser beam height etc. are excellent
Point, thus the thulium optical fiber laser of high peak power pulse output had obtained extensive research in recent years.But thulium is mixed near 2 μm
Optical fiber laser the operations such as is cut to tissue, is gasified and needing biggish pulse energy, and laser power is mainly by mixing thulium
Fibre core provides.But with the significant reinforcement for mixing optical power density in thulium gain fibre, it may appear that serious fuel factor causes thermotropic
Phenomena such as birefringent, phase distortion, hot focus, thermal lens, seriously affects the output power and beam quality of laser, becomes limitation
The lethal factor that laser performance improves.
It is sharp that the Chinese invention patent of Publication No. CN104638506A discloses a kind of 1.9 microns of high-power prostates
Photo-therapeutic instrument can carry out the compensation of different modes for different operation power, solve thulium-doped fiber laser to increase
Power and occur efficiency decline and beam quality be deteriorated the problems such as.But the fuel factor that this scheme still can not solve optical fiber is asked
Topic.
CN107412957A discloses a kind of photo-thermal therapy probe based on photo-thermal nano material comprising closed at one end
Cylinder-like shell, the photo-thermal nano material for being filled in interior of shell closed end kill tumour and other diseases by implementing high temperature
Become histocyte.But this scheme is implemented to treat only with high temperature, and it closes nano material inside the shell, knot
Structure is complicated, heat production low efficiency.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of double optical-fiber laser treatment systems, by the way that two lasers are arranged
Wherein optothermal material is arranged on the end face of contact type optical fiber in defeated channel, improves probe using the efficient photothermal conversion of optothermal material
Thermogenesis, improve optical fiber connector temperature, directly contacted with tissue in the course of surgery, then is with non-contact fiber outgoing sharp
Light cooperation, so that high temperature and laser act on tissue simultaneously, so that procedure efficiency greatly improves, required laser power is compared to biography
There are many optical fiber non-contact method decline of uniting, and reduce the generation of the fuel factor problem of optical fiber.Laser probe uses changeable type
Structure after first use, replaces cutter head, does not have to replacement laser conduction optical fiber, is greatly saved consuming cost.
Technical solution of the present invention specifically:
A kind of double optical-fiber laser treatment systems, the system comprises laser light source and device for laser therapy, the laser is controlled
Treating device includes insertion tube, and service aisle is provided in the insertion tube, and contact laser biography is provided in the service aisle
Fine and non-contact laser transmission fiber is lost, wherein contact laser transmission fiber includes hop and light out part point, institute
It states light out part point removably to connect with the hop, and is formed with photo-thermal material in the distal end faces of the light out part point
Material, the contact laser transmission fiber can be axially moveable in service aisle, the laser light source include mix thulium light source and
Infrared light supply.
The optothermal material covers fiber end face, and the efficient photothermal conversion of optothermal material improves the Thermogenesis of probe, mentions
High fiber optic temperature.Contact laser optical fiber of the end face with optothermal material transmits infrared light, the transmission of non-contact laser transmission fiber
From the output laser for mixing thulium gain fibre.
In the course of surgery, contact laser transmission fiber can stretch out service aisle, directly be contacted with tissue.
It is preferred that contact laser transmission fiber and non-contact laser transmission fiber are located at different service aisles, it is non-to connect
Service aisle end has transparent light exit window where touch laser transmission fiber, and optical fiber will not be contaminated in use,
It may be reused.
The optothermal material can pass through any one method shape in coating, vapor deposition, magnetron sputtering, vapor deposition, welding
The surface of optical fiber described in Cheng Yu.Welding carries out under protective atmosphere, using the atmosphere by He gas composition, can effectively prevent in this way
The only oxidation of material under high temperature.
The optothermal material can be one of metal optothermal material, diamond or semiconductor light hot material or a variety of.
It is preferred that the optothermal material is nano material.
The photo-thermal nano material can be metal photo-thermal nano material, Nano diamond or semiconductor nano optothermal material
One of or it is a variety of.
The metal photo-thermal nano material can be one of gold, platinum, nanometer Pd material or a variety of.
The semiconductor nano material can be copper sulfide, molybdenum sulfide, bismuth sulfide, antimony trisulfide, aurosulfo copper selenide, selenizing
One of molybdenum, bismuth selenide, antimony selenide or Auric selenide are a variety of.
According to the density and thickness that optothermal material is arranged needed for laser power and clinical temperature.For example, thickness can be
100 microns hereinafter, further, 50 microns hereinafter, further, 1 micron hereinafter, further, 500 nanometers or less and not small
In 1 nanometer.
The laser light source includes pumping source, beam splitter, resonant cavity, and resonant cavity includes two hysteroscopes and doping gain light
Fibre, two hysteroscopes are semi-transparent semi-reflecting lens, and the first hysteroscope transmits pump light, the signal light that reflection gain optical fiber generates, the second chamber
The signal light that mirror transmittance gain optical fiber generates, reflected pump light, beam splitter can control the pumping light quantity into resonant cavity.
Pumping source uses near-infrared semiconductor laser pumping.
The beam splitter structure includes three blades, and one of blade is half-silvered mirror, so that simultaneously with 45 degree of angle incidences
And the not part (transmission light quantity can be controlled by the thickness or coating area for controlling deposit) of light that coated absorbs
It is transmitted, rest part is reflected, and a blade is total reflection mirror, another blade is total transmissivity mirror.The beam splitter can
To be rotated as needed around axle center, controls any of three blades and be located in optical path.When such as carrying out optical dynamic therapy, make to be all-trans
It penetrates mirror to be located in optical path, reflects whole pump lights, in this way, optical fiber output near infrared light is used for optical dynamic therapy.Such as carry out laser
When treatment, it is located at full projecting mirror in optical path, transmits whole pump lights, pump light enters resonant cavity and generates output laser, optical fiber
It exports 2um high energy pulse laser and is used for laser therapy.When being used cooperatively such as optical dynamic therapy and laser therapy, make half-silvered mirror position
In optical path, reflective portion pump light, transmissive portion pump light.
It is preferred that the half-silvered mirror can be replaced as needed, regulated and controled by using the half-silvered mirror of different transmittance example
Export the ratio of near-infrared and 2um high energy pulse laser.
The half-silvered mirror can using in a sheet glass or plastics splash-proofing sputtering metal coating, formed discontinuous coating or
Continuous coated zonule is removed by chemically or mechanically acting on to generate.
The hop of contact type optical fiber is connected through a screw thread or is connected together realization with the light out part point can
Dismantling connection.Sheath of the light out part point with covering service aisle.The sheath covers service aisle, can prevent steam
Into service aisle, the pollution to service aisle is prevented.
The sheath is made of elastic material, it is preferred to use rubber material is made.
The service aisle edge protrusion endoscope tip plane certain length is used for the fixation of the sheath.
Optionally, the service aisle bordered profiles circularize the fixation that recess is used for the sheath.
The contact type optical fiber can be axially moveable in service aisle, and the service aisle front end is provided with and contacts
The bayonet of formula optical fiber cooperation, the bayonet include the elastic brake lining for closing bayonet, and bayonet outer is provided with opening for control brake lining
It closes, opens brake lining, the hop can stretch out bayonet, connect with the cutter head, after treatment end, to the cutter head and institute
It states sheath to be cleaned, releases connection of the light out part point with the hop, the hop is withdrawn into bayonet, lock
Piece rebounds automatically, closes bayonet, then releases being fixedly connected for the sheath and service aisle, in this way, only needing after primary operation
Disinfection is purged to external tothe endoscope, without carrying out cleaning and sterilizing to endoscopic working channel.
The shape of the brake lining can according to need setting, can be two semicircle brake linings, or multiple triangles
Blade.
Further, described device includes the temperature sensor being arranged near optic fibre end, is monitored to temperature.
Further, described device includes cooling and flushing channel, is used for by liquid injection to target site, to target portion
It is cleaned and is cooled down in position.
Be compared with the prior art, the present invention there are following the utility model has the advantages that
1, probe gets involved in lesion tissue position by minimally invasive, then passes through the optothermal material on wherein contact type optical fiber end face
Efficient photothermal conversion mechanism, improve fiber optic temperature, carry out surgical operation of the optical Fiber Contact with non-contact laser in conjunction with, height
Mild laser acts on tissue simultaneously and procedure efficiency is greatly improved, have laser surgey high energy, collimation, action time it is short with
And the feature that heat-affected zone is small, while required laser power is many compared to the decline of traditional fiber non-contact method, reduces
The generation of the fuel factor problem of optical fiber.
2, optical fiber is directly contacted with optothermal material in the present invention, and structure is simple, in addition also greatly reduces laser energy
Loss.
3, system complexity is low.Since this product power is low, and when work, other parts temperature will not be risen other than syringe needle
Height greatly reduces system complexity so not needing water-cooling system.
4, laser probe uses changeable type structure, after first use, replaces cutter head, and it is guide-lighting not have to replacement laser
Fibre is greatly saved consuming cost.
Detailed description of the invention
Fig. 1 is device for laser therapy structural schematic diagram.
Fig. 2 is laser light source structural schematic diagram.
Fig. 3 is jacket structure schematic diagram.
In figure, 1- non-contact laser transmission fiber, 2- contact laser transmission fiber, 3- optothermal material, 4- doping increasing
Beneficial the second hysteroscope of optical fiber 5- 6- bundling device.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and advantageous effects, with reference to embodiments,
The present invention will be described in further detail.It should be understood that embodiment described in this specification is just for the sake of explanation
The present invention, be not intended to limit the present invention, embodiment design parameter setting etc. can adaptation to local conditions make a choice and simultaneously to result
Without substantial effect.
Embodiment 1
As shown in Figure 1, a kind of double optical-fiber laser treatment systems, the system comprises laser light source and device for laser therapy,
The device for laser therapy includes insertion tube, and service aisle is provided in the insertion tube, is provided with and connects in the service aisle
Touch laser transmission fiber 2 and non-contact laser transmission fiber 1, wherein contact laser transmission fiber 2 includes hop
And light out part point, the light out part point are removably connect with the hop, and in the distal end faces of the light out part point
It is formed with optothermal material, and can be axially moveable in service aisle, the laser light source includes mixing thulium light source and infrared light supply.
The optothermal material 3 covers fiber end face, and the efficient photothermal conversion of optothermal material improves the Thermogenesis of probe, mentions
High fiber optic temperature.Contact laser optical fiber 2 of the end face with optothermal material 3 transmits infrared light, and non-contact laser transmission fiber 1 passes
It is defeated from the output laser for mixing thulium gain fibre.
In the course of surgery, contact laser transmission fiber 2 can stretch out service aisle, directly be contacted with tissue.
Contact laser transmission fiber 2 and non-contact laser transmission fiber 1 are located at different service aisles, contactless
1 place service aisle end of laser transmission fiber has transparent light exit window 9, and optical fiber will not be contaminated in use, can
To reuse.
The optothermal material 3 can pass through any one method shape in coating, vapor deposition, magnetron sputtering, vapor deposition, welding
The surface of optical fiber described in Cheng Yu.Welding carries out under protective atmosphere, using the atmosphere by He gas composition, can effectively prevent in this way
The only oxidation of material under high temperature.
The optothermal material can be one of metal optothermal material, diamond or semiconductor material or a variety of.
The optothermal material is nano material.
The photo-thermal nano material can be in metal photo-thermal nano material, Nano diamond or semiconductor nano material
It is one or more.
The metal photo-thermal nano material can be one of gold, platinum, nanometer Pd material or a variety of.
The semiconductor nano material can be copper sulfide, molybdenum sulfide, bismuth sulfide, antimony trisulfide, aurosulfo copper selenide, selenizing
One of molybdenum, bismuth selenide, antimony selenide or Auric selenide are a variety of.
According to the density and thickness that optothermal material is arranged needed for laser power and clinical temperature.For example, thickness can be
100 microns hereinafter, further, 50 microns hereinafter, further, 1 micron hereinafter, further, 500 nanometers or less and not small
In 1 nanometer.
As shown in Fig. 2, the laser light source includes pumping source 4, beam splitter 8 and resonant cavity, resonant cavity includes two chambers
Mirror 5,7 and doped gain fiber 6, two hysteroscopes 5,7 are semi-transparent semi-reflecting lens, and the first hysteroscope 5 transmits pump light, reflection gain light
Fibre generate signal light, 7 transmittance gain optical fiber of the second hysteroscope generate signal light, reflected pump light, beam splitter 8 can control into
Enter the pumping light quantity of resonant cavity.
Pumping source 4 uses near-infrared semiconductor laser pumping.
The beam splitter structure 8 includes three blades, and one of blade is half-silvered mirror, so that simultaneously with 45 degree of angle incidences
And the not part (transmission light quantity can be controlled by the thickness or coating area for controlling deposit) of light that coated absorbs
It is transmitted, rest part is reflected, and a blade is total reflection mirror, another blade is total transmissivity mirror.The beam splitter can
To be rotated as needed around axle center, controls any of three blades and be located in optical path.When such as carrying out optical dynamic therapy, make to be all-trans
It penetrates mirror to be located in optical path, reflects whole pump lights, in this way, optical fiber output near infrared light is used for optical dynamic therapy.Such as carry out laser
When treatment, it is located at full projecting mirror in optical path, transmits whole pump lights, pump light enters resonant cavity and generates output laser, optical fiber
It exports 2um high energy pulse laser and is used for laser therapy.When being used cooperatively such as optical dynamic therapy and laser therapy, make half-silvered mirror position
In optical path, reflective portion pump light, transmissive portion pump light.
The half-silvered mirror can be replaced as needed, and it is close to regulate and control output by using the half-silvered mirror of different transmittance example
The infrared ratio with 2um high energy pulse laser.
The half-silvered mirror can using in a sheet glass or plastics splash-proofing sputtering metal coating, formed discontinuous coating or
Continuous coated zonule is removed by chemically or mechanically acting on to generate.
The hop of contact type optical fiber 2 is connected through a screw thread or is connected together realization with the light out part point can
Dismantling connection.Sheath of the light out part point with covering service aisle as shown in Figure 3.The sheath covers service aisle,
It can prevent steam from entering service aisle, prevent the pollution to service aisle.
The sheath is made of elastic material, it is preferred to use rubber material is made.
The service aisle edge protrusion endoscope tip plane certain length is used for the fixation of the sheath.
The service aisle bordered profiles circularize the fixation that recess is used for the sheath.
The contact type optical fiber 2 can be axially moveable in service aisle, and the service aisle front end is provided with and connects
The bayonet of touch optical fiber cooperation, the bayonet include the elastic brake lining for closing bayonet, and bayonet outer is provided with control brake lining
Switch opens brake lining, and the hop can stretch out bayonet, connect with the cutter head, after treatment end, to the cutter head and
The sheath is cleaned, and connection of the light out part point with the hop is released, and the hop is withdrawn bayonet,
Brake lining rebounds automatically, closes bayonet, then releases being fixedly connected for the sheath and service aisle, in this way, after primary operation, only
Disinfection need to be purged to external tothe endoscope, without carrying out cleaning and sterilizing to endoscopic working channel.
The shape of the brake lining can according to need setting, can be two semicircle brake linings, or multiple triangles
Blade.
Described device includes the temperature sensor being arranged near optic fibre end, is monitored to temperature.
Described device includes cooling and flushing channel, for carrying out liquid injection to target site to target site clear
It washes and cools down.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (10)
1. a kind of double optical-fiber laser treatment systems, which is characterized in that the system comprises laser light source and device for laser therapy, institutes
Stating device for laser therapy includes insertion tube, and service aisle is provided in the insertion tube, contact is provided in the service aisle
Formula laser transmission fiber and non-contact laser transmission fiber, wherein contact laser transmission fiber includes hop and light out
Part, the light out part point are removably connect with the hop, and are formed in the distal end faces of the light out part point
Optothermal material, the contact laser transmission fiber can be axially moveable in service aisle, and the laser light source includes mixing thulium
Light source and infrared light supply.
2. laser therapeutic system according to claim 1, which is characterized in that contact of the end face with optothermal material swashs
Light optical fiber transmits infrared light, and the non-contact laser transmission fiber transmission is from the output laser for mixing thulium gain fibre.
3. laser therapeutic system according to claim 1, which is characterized in that contact laser transmission fiber and contactless
Laser transmission fiber is located at different service aisles, and service aisle end has transparent light where non-contact laser transmission fiber
Exit window.
4. laser therapeutic system according to claim 1, which is characterized in that the optothermal material is heavy by coating, gas phase
Product, magnetron sputtering, vapor deposition, any one method is formed in the surface of the optical fiber in welding.
5. laser therapeutic system according to claim 1, which is characterized in that the photo-thermal nano material is that metal photo-thermal is received
One of rice material, Nano diamond or semiconductor nano optothermal material are a variety of.
6. laser therapeutic system according to claim 1, which is characterized in that the laser light source includes pumping source, beam splitting
Device and resonant cavity, resonant cavity include two hysteroscopes and doped gain fiber, and two hysteroscopes are semi-transparent semi-reflecting lens, the first hysteroscope
Transmit pump light, the signal light that reflection gain optical fiber generates, the signal light that the second hysteroscope transmittance gain optical fiber generates, reflection pumping
Light, beam splitter can control the pumping light quantity into resonant cavity.
7. laser therapeutic system according to claim 6, which is characterized in that pumping source is pumped using near-infrared semiconductor laser
Pu.
8. laser therapeutic system according to claim 1, which is characterized in that the hop of contact type optical fiber is with institute
Stating light out part divides the realization that is connected through a screw thread or is connected together to be detachably connected.
9. laser therapeutic system according to claim 1, which is characterized in that the light out part point is with covering service aisle
Sheath.
10. laser therapeutic system according to claim 9, which is characterized in that the sheath is made of elastic material.
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| CN109567934B (en) | 2021-06-22 |
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