CN203710136U - Medical laser hemostasis device - Google Patents
Medical laser hemostasis device Download PDFInfo
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- CN203710136U CN203710136U CN201420075236.7U CN201420075236U CN203710136U CN 203710136 U CN203710136 U CN 203710136U CN 201420075236 U CN201420075236 U CN 201420075236U CN 203710136 U CN203710136 U CN 203710136U
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- Prior art keywords
- laser
- reflecting mirrors
- hemostasis device
- pumping
- side face
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- 230000023597 hemostasis Effects 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
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- 238000000034 method Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 230000023555 blood coagulation Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 206010051814 Eschar Diseases 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 231100000333 eschar Toxicity 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
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- 238000013461 design Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 229910052786 argon Inorganic materials 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000002008 hemorrhagic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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- 230000004899 motility Effects 0.000 description 1
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- Laser Surgery Devices (AREA)
Abstract
The utility model discloses a medical laser hemostasis device. A laser side pump, a 1.32-micrometer total reflector and a 1.32-micrometer partial reflector located at the two ends of a pump head of the laser side pump respectively form a laser resonator, 1.32-micrometer laser light is output from the 1.32-micrometer partial reflector, and connected with a transmission optical fiber via a coupling lens to be output, and an acoustic optical modulator is arranged between the 1.32-micrometer total reflector and the pump head of the laser side pump. The device is compact in structure and convenient to use.
Description
Technical field
This utility model belongs to laser therapeutic system, relates in particular to a kind of medical laser hemostasis device technical field.
Background technology
Hemostasis is to process hemorrhage Method and Process, is also the problem that surgical operation must run into.Hemostasis must be in time, thoroughly, rationally, the safety after guarantee operation in patients.
Before 20th century, the hemostasis mode that surgeon can rely on is nothing but compressing filling and ligation, wherein more conventional with hemostasis by ligation, these two kinds of Hemostasis remain the basic mode of surgical hemostasis so far, are also the basic training that every surgeon all should grasp.But the how little hemorrhagic focus due to no matter, all will expend the time and efforts of surgeon preciousness, and operating field also may be because of hemorrhage and smudgy, and anatomy relationship is differentiated difficulty, and the continuity of operation is disturbed; Meanwhile, ligation or compressing filling are for larger area oozing of blood poor effect often.These situations all impel people to remove to find better Hemostasis.
1891, physicist dArsonval for surgical operation, to reach the object of hemostasis, opened important one page of surgical operation history by electrotome.But need preheating before the each use of this electrotome, may cause obvious eschar during use, its power adjustments is difficult to control, and easily N&M is caused damage, thereby use also inconvenient.The twenties in 20th century, professor Bovie of masschusetts, u.s.a Polytechnics has invented electrocoagulator.Nineteen twenty-five, doctor of medicine Stoye and Wyeth have made First in history and have really had the electric knife that uses meaning, and by Cushing, are applied to clinical.But until just have people successfully TURP and coagulation to be integrated the sixties, the Single-pole electric knife of extensive use now namely, it is easy to use, cutting is rapid, solidify reliably, and cheap, is the mainstream configuration of current medical institutions at different levels.But Single-pole electric knife also has some shortcomings, as need place dispersive electrode, use easily cause when careless burn, eschar obviously, easily produces electric spark etc., after this bipolar electric knife occurring has overcome these shortcomings well, its blood coagulation is meticulous, eschar is few, has unique advantage while coordinating coagulation to cut use in accurate operation; But bipolar electric knife there is no cutting function, blood coagulation speed is slower, thereby has limited its extensive use, can not replace the status of Single-pole electric knife completely.
In the later stage eighties 20th century, the appearance of argon-gas knife is the another milestone in electrosurgery development history, and its appearance has solved the hemostasis problem of large area diffusivity oozing of blood, makes many highly difficult operations smooth.Argon-gas knife application of pure argon conduction high frequency electric, has improved blood coagulation efficiency greatly, can process rapidly large area oozing of blood and the non-pulsation of trunk is hemorrhage; Simultaneously very little to the damage of tissue, faster than traditional electric knife healing, can be used for any position and various types of hemostasis, during blood coagulation, do not produce smog and abnormal smells from the patient, few to muscle, nerve stimulation, there will not be muscle twitches, and owing to adopting non-contacting mode of operation, reduced the incidence rate of cross infection.But argon-gas knife does not have cutting function, can only, for blood coagulation, need be used in conjunction with high frequency electric knife.
To the demand of the hemostasis of operation, be more and more clinically at present, although there are at present various hemostasis modes to select for doctor, clinical effectiveness has certain limitation.In the last few years, development along with laser medicine, the application of laser aspect surgery is also more and more extensive, by our clinical trial, finds that 1.32 mum wavelength laser can, by making vessel inner blood solidify formation thrombosis, reach good haemostatic effect in operation process.
Summary of the invention
The purpose of this utility model is to provide a kind of compact conformation, medical laser hemostasis device easy to use.
The technical solution adopted in the utility model is:
A kind of medical laser hemostasis device, by laser side face-pumping, occupy the 1.32 μ m completely reflecting mirrors at laser side face-pumping pump head two ends and the laserresonator that 1.32 μ m partially reflecting mirrors form with dividing, 1.32 μ m laser are exported from 1.32 μ m partially reflecting mirrors, and export 1.32 μ m laser by coupled lens connection Transmission Fibers; Wherein between 1.32 μ m completely reflecting mirrors and laser side face-pumping pump head, be provided with acousto-optic modulator.
From said structure, can find out, according to this utility model, adopt a completely reflecting mirror and a partially reflecting mirror and coordinate the pump head of laser instrument to construct laserresonator, overall structure is relatively compact, based on optical fiber output, motility is relatively good, and it is relatively convenient to use.The existence of acousto-optic modulator is conducive to the control of shoot laser light intensity and switch.
Above-mentioned medical laser hemostasis device, selects suitable lens, is beneficial to obtain outgoing effect, and the transmitance of 1.32 μ m partially reflecting mirrors is T=5%@1.32 μ m.
Above-mentioned medical laser hemostasis device, is all coated with 1.32 mum wavelength reflection of light films on described 1.32 μ m partially reflecting mirrors and 1.32 μ m completely reflecting mirrors.
Above-mentioned medical laser hemostasis device, the pumping source of described laser side face-pumping is the diode laser matrix according to triangular arranged, laser diode wave length is 808nm, laser medium is Nd:YAG, plane is worn at two ends, and is coated with the anti-reflection film of fundamental frequency light, compact overall structure.
Above-mentioned medical laser hemostasis device, in order to improve adaptability, it is cooling that laser side face-pumping adopts mobile cooling water to carry out.
Accompanying drawing explanation
Fig. 1 is the schematic diagram according to a kind of medical laser hemostasis device of the present utility model.
Description of reference numerals:
A-semiconductor side pumped Nd:YAG mode of laser;
B-acousto-optic modulator
C-coupled lens
D-Transmission Fibers
M1-1.32 μ m total reflective mirror;
M2-1.32 μ m partially reflecting mirror.
The specific embodiment
With reference to explanation accompanying drawing 1, a kind of medical laser hemostasis device comprises: semiconductor side pumped Nd:YAG laser module and corresponding configuration are at 1.32 μ m wavelength completely reflecting mirrors, the 1.32 μ m wavelength partially reflecting mirrors at these conductor profile pump Nd:YAG laser module two ends, form resonator cavity, and at position configuration acousto-optic modulator as shown in Figure 1.
The said acousto-optic modulation of acousto-optic modulator is a kind of external modulation technology, conventionally the acousto-optical device of controlling laser beam intensity variation is called to acousto-optic modulator.Acousto-optic modulation technology has much higher modulating frequency than the direct modulation technique of light source; Compare with Electro-optical Modulation technology, it has higher extinction ratio (being generally greater than 1000:1), lower driving power, better temperature stability and better optical spot quality and low price; Compare with machinery modulation mode, it has less volume, weight and better output waveform.
Acousto-optic modulator operation principle is summarized as follows:
Acousto-optic modulator consists of acousto-optic medium and piezoelectric transducer.When certain special carrier frequency of drive source drives transducer, transducer produces the ultrasound wave of same frequency and imports acousto-optic medium into, in medium, form variations in refractive index, the light beam direction of propagation that changes light that occurs during by medium to interact produces diffraction.
If produce ultrasound wave in the ultrasonic medium such as clear glass and crystal, can cause periodic variations in refractive index and become phase type diffraction grid, if allow laser beam incident in ultrasonic medium, laser beam just produces diffraction, and diffraction light intensity and direction change with the state of hyperacoustic intensity and frequency.The interaction of Here it is ultrasound wave and light, i.e. acoustooptical effect.
About total reflection and part reflection, those skilled in the art should have this clearly and understands, and as total reflection, does not represent 100% reflection, and it refers to a kind of perfect condition in theory, but the technical specification of this area represents the type described in reflecting mirror with this term.
About semiconductor laser, since the nineties in last century, obtained tremendous development, than solid state laser, its structure is very compact, pumping source LD(laser diode) stability of output is very high, thereby is highly suitable for medical science use, thereby guarantees not affect therapeutic process.
According to said structure feature, be: total reflective mirror is coated with the highly reflecting films of 1.32 μ m wavelength, partially reflecting mirror is coated with 1.32 μ m wavelength part reflectance coatings, and the window mirror of acousto-optic modulator is coated with 1.32 μ m wavelength anti-reflection films.
Laser forms vibration between completely reflecting mirror and partially reflecting mirror, by acousto-optic modulator, carries out acousto-optic modulation, the laser of output 1.32 μ m wavelength.The laser of 1.32 μ m wavelength is coupled to Transmission Fibers by coupled lens.As shown in Figure 1.
Further instruction:
One of feature is: semiconductor side pumped Nd:YAG laser module A and total reflective mirror M1(are called for short M1) and partially reflecting mirror M2(abbreviation M2) 1.32 μ m laserresonators formed from partially reflecting mirror M2 output 1.32 μ m laser.The upper plating of the M1 1.32 μ m film that is all-trans wherein; Reflectance is greater than 99%.The upper plating 1.32 μ m part reflectance coatings of M2, wherein 1.32 μ m reflectance are 95%.
Two of feature is: semiconductor side pumped Nd:YAG laser module A and total reflective mirror M1 and partially reflecting mirror M2 form 1.32 μ m laserresonators from partially reflecting mirror M2 output, and 1.32 μ m laser are modulated by acousto-optic modulator B.Wherein on the window mirror of acousto-optic debugger, plate 1.32 μ m anti-reflection films.
Three of feature is: the laser of 1.32 μ m wavelength is coupled in Transmission Fibers D by coupled lens C.
1, the structural design of resonator cavity and plated film design realize 1.32 mum wavelength Laser outputs, can meet to greatest extent the function that Wicresoft's interventional therapy overall process realizes hemostasis.
2, this device have that efficiency is high, the advantage such as compact conformation, operating cost are low, easy to adjust, work safety.
3, in system, by mobile optical element, just can not realize the switching of optical maser wavelength, thereby make system possess high reliability and mechanical stability, simple to operate, integrated level is high, cost is low.
According to the above measure inventor, made a model machine: in this system, semiconductor laser pumping wavelength is 808nm, adopt five annular pumping Nd:YAG crystal, crystalline size length is 100mm, and diameter is 6mm, M1 plating R>99.8@1.32 μ m; The transmitance of M2 is T=5%@1.32 μ m.
After testing: when semiconductor laser pumping power is 500W, the power of laser instrument output is 50W, and wavelength is 1.32 μ m, and the laser of output is well positioned to meet wound hemostasis in operation.
Claims (5)
1. a medical laser hemostasis device, it is characterized in that, by laser side face-pumping, occupy the 1.32 μ m completely reflecting mirrors at laser side face-pumping pump head two ends and the laserresonator that 1.32 μ m partially reflecting mirrors form with dividing, 1.32 μ m laser are exported from 1.32 μ m partially reflecting mirrors, and export 1.32 μ m laser by coupled lens connection Transmission Fibers; Wherein between 1.32 μ m completely reflecting mirrors and laser side face-pumping pump head, be provided with acousto-optic modulator.
2. medical laser hemostasis device according to claim 1, is characterized in that, the transmitance of 1.32 μ m partially reflecting mirrors is T=5%@1.32 μ m.
3. medical laser hemostasis device according to claim 2, is characterized in that, on described 1.32 μ m partially reflecting mirrors and 1.32 μ m completely reflecting mirrors, is all coated with 1.32 mum wavelength reflection of light films.
4. according to the arbitrary described medical laser hemostasis device of claims 1 to 3, it is characterized in that, the pumping source of described laser side face-pumping is the diode laser matrix according to triangular arranged, laser diode wave length is 808nm, laser medium is Nd:YAG, plane is worn at two ends, and is coated with the anti-reflection film of fundamental frequency light.
5. medical laser hemostasis device according to claim 4, is characterized in that, it is cooling that laser side face-pumping adopts mobile cooling water to carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075236.7U CN203710136U (en) | 2014-02-21 | 2014-02-21 | Medical laser hemostasis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075236.7U CN203710136U (en) | 2014-02-21 | 2014-02-21 | Medical laser hemostasis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710136U true CN203710136U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075236.7U Expired - Fee Related CN203710136U (en) | 2014-02-21 | 2014-02-21 | Medical laser hemostasis device |
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| Country | Link |
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| CN (1) | CN203710136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884184A (en) * | 2015-03-17 | 2019-06-14 | 海默索尼克斯有限公司 | Equipment for assessing hemostasis |
-
2014
- 2014-02-21 CN CN201420075236.7U patent/CN203710136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884184A (en) * | 2015-03-17 | 2019-06-14 | 海默索尼克斯有限公司 | Equipment for assessing hemostasis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20210221 |