CN85103131A - Hyperbaric oxygen chamber laser irradiation device - Google Patents

Abstract

Translated fromChinese

高压氧舱激光照射装置，属于医疗器械领域。在高压氧舱上开设激光入射窗，将装置于舱外一定距离的医用激光器的激光束经入射窗的K₉光学玻璃导引进舱内，再经全反射镜、发散透镜、会聚透镜和光导纤维等的光路转换在照区形成合适的孔径角和光斑。或经聚焦藕入窥镜导光束引入人体腔内照射。本装置与光动力学疗法结合用于恶性肿瘤的诊治具有独特作用，对临床各种适应症在高压氧舱内结合激光治疗产生意想不到的疗效。A hyperbaric oxygen chamber laser irradiation device belongs to the field of medical equipment. A laser incident window is set up on the hyperbaric oxygen chamber, and the laser beam of the medical laser device installed at a certain distance outside the cabin is guided into the cabin through the K₉ optical glass of the incident window, and then passes through the total reflection mirror, the diverging lens, the converging lens and the optical fiber. Equal optical path conversion forms a suitable aperture angle and spot in the illuminated area. Or it can be introduced into the cavity of the human body for irradiation through the focused coupling-in speculum guide beam. The combination of this device and photodynamic therapy for the diagnosis and treatment of malignant tumors has a unique effect, and it can produce unexpected curative effects for various clinical indications in combination with laser therapy in a hyperbaric oxygen chamber.

Description

Laser irradiation apparatus for high pressure oxigen cabin

The laser irradiation apparatus for high pressure oxigen cabin invention belongs to medical instruments field.

Present separately applying high voltage oxygen cabin or to use laser treatment separately and diagnose the illness be the new technique that developed recently gets up.

Hyperbaric oxygen chamber is a kind of large-scale medical apparatus and instruments, it is the special equipment of hyperbaric oxygentherapy, lucite that the hyperbaric oxygen chamber observation window is inlayed or fiberglass produce scattering to the laser beam that sees through, can not form suitable angular aperture and facula position, and light energy is absorbed and makes laser output power loss about 60%; And the laser tube of laser instrument is in hyperbar (greater than an atmospheric pressure) easily displacement and distortion down.Even broken, add again that transient voltage reaches more than the kilovolt when producing gas glow discharge between laser tube negative electrode and anode, therefore laser instrument can not be placed the hyperbaric oxygen chamber internal radiation.

Laser instrument is a kind of light source that early sixties occurs.Very fast in medical science and application development biologically, combination along with fibre-optic appearance and ultrasonic laser, medically can reach 15 centimetres with the laser-ultrasound scanning perspective soft tissue degree of depth, or close with the optical fibers Rhizoma Nelumbinis laser is introduced human body, digestive system, urinary system and bronchial disease are carried out diagnosis and treatment, promptly utilize the optical characteristics of laser to diagnose, utilize the high-energy of laser to treat.

But, the medical treatment device that is used in combination with laser instrument of no-trump hyperbaric oxygen chamber still in the world.The present invention has overcome above-mentioned shortcoming, with hyperbaric oxygen chamber and a kind of new medical treatment device of laser instrument combination becoming, human body diseases is had the unique effect of diagnosis and treatment.

Principle of the present invention is, medical laser is placed on outside 2～30 meters of the hyperbaric oxygen chamber outsides, laser beam is injected in the cabin by the optical glass of hyperbaric chamber laser entrance window, import the laser beam in the hyperbaric oxygen chamber, by be installed on the bulkhead of entrance window opposite with completely reflecting mirror, divergent lens, collecting lens and the optical fibers of entrance window at same horizontal level, forming suitable angular aperture and hot spot through the light path conversion according to the district, also can focus on Rhizoma Nelumbinis and go into the internal radiation of photoconduction fiber importing body cavity through collecting lens.

The laser entrance window is similar to the hyperbaric oxygen chamber observation window, be opened in hyperbaric oxygen chamber body one side apart from ground 1～2 meter, the entrance window face is perpendicular to laser beam, 30～180 millimeters of entrance window external diameters, 20～160 millimeters of internal diameters, double-deck parallel plane K₉Between optical glass is embedded in, 5～10 millimeters of two glasses interval, K₉The two-sided plating medium of optical glass anti-reflection film is tightly locked with seal washer.K₉Optical glass is contained in the metal-back of an external diameter band screw, and the internal diameter of metal-back is connected with spiral with the external diameter of entrance window, makes the K of entrance window leaded light₉Optical glass can be changed at any time.

K₉Optical glass parallel plane precision is about 1/20 of a wavelength, thick 6～8 millimeters, and more than withstand voltage 3.5 kg/cm.K₉The two-sided plating medium of optical glass anti-reflection film can further reduce absorption and reflection loss to laser, and output is lost behind entrance window less than 5%, and the selected medium of plating medium anti-reflection film determines according to laser activity and wavelength.

Completely reflecting mirror, divergent lens, collecting lens plating multilamellar total reflection medium film according to using laser instrument kind, wavelength plating different medium, can further reduce optical energy loss; Divergent lens amplifies laser beam expanding to the hot spot according to the district, according to the radius of curvature of selecting different divergent lenses to the distance of shining the district for use, when minute surface with according to offset from about 1.5～3 meters, 10 millimeters of spot diameters, its divergent lens radius of curvature is 300～500 millimeters; Collecting lens focuses on Rhizoma Nelumbinis and closes Yu Yigen or several optical fibers, and laser is transferred in optical fibers or sight glass light guide bundles according to district or body cavity internal radiation.

The picture frame of completely reflecting mirror, collecting lens and divergent lens is made with metal or plastics, optic diameter is more than 20 millimeters, thick more than 2 millimeters, direction of illumination and the illuminating method of laser beam in hyperbaric oxygen chamber, the suitable angular aperture and the facula position of light beam adjusted in the rotation of dependence minute surface, and it is adjustable that laser irradiation is become.The minute surface rotation is to have the turning-bar control that spheroid can rotate arbitrarily by 2 bottoms, and minute surface is connected on the top of turning-bar.The bulb of two turning-bars is fixed by left and right sides clamping plate.Become flexible and lock the activity of minute surface on the control turning-bar by special-shaped screw.

Laser instrument and hyperbaric oxygen chamber are placed in 2～30 meters scopes, also can place respectively in two operating rooms, make the two can be combined into new medical treatment device and keep the independently function of monomer device of conduct again, exempted unnecessary moving and influencing each other.Laser beam can be by partition wall door and window or the ad hoc diameter of wall greater than 50 millimeters fenestra, height and laser output and hyperbaric chamber laser entrance window are on same horizontal level, laser beam is by this hole directive hyperbaric oxygen chamber entrance window.Oxygen supply is isolated in the hyperbaric oxygen chamber, adopts to deflated oxygen absorption mask out of my cabin, and oxygen concentration is controlled at 25% when following in the cabin in, the laser power of in the cabin, introducing can with normal pressure under basic identical in the laser power of use out of my cabin; In the pure oxygen in high pressure cabin, the laser beam of introduction is limited to low-power, and outfan power 200～300 milliwatts are safe.

Technology of the present invention is applicable to various medical lasers and large, medium and small all types of hyperbaric oxygen chamber, optical path switching device has guaranteed that the laser output power loss is less than 5% in the cabin, and laser irradiation mode has to disperse and expands bundle, total reflection, focusing mat and go into transmission in photoconduction fiber or the sight glass light guide bundles, and multiple function such as laser scalpel; Original technical specification of laser instrument and basic parameter need not to change, and all medical lasers all can be guided into hyperbaric oxygen chamber internal radiation through technology of the present invention.

With optical fibers laser being imported in the hyperbaric oxygen chamber, is another approach that realizes the hyperbaric chamber laser irradiation.Optical fibers inserts in the hyperbaric oxygen chamber, and an end optical fibers section and laser beam Rhizoma Nelumbinis are closed out of my cabin, and its light-conductive rate is about 60%.

This device combines diagnosis and the treatment that can be used for malignant tumor with photodynamics, promoting the increase of photodynamics singlet oxygen quantum yield to have unique effect, strengthen the fragmentation effect to tumor, obviously is better than the curative effect of simple photodynamic therapy to malignant tumor; Be used for clinical each section's indication, under hyperbaric oxygen, produce beyond thought curative effect in conjunction with laser therapy; Diagnosis and the treatment that is used for the microcirculation disturbance disease has hyperbaric oxygen, laser is compound and the curative effect of addition, and future is widely used.

Description of drawings:

Fig. 1, hyperbaric chamber laser irradiation principle

1.laser beam 2. hyperbaric chamberlaser entrance windows 3. completely reflectingmirrors 4. collectinglenses 5.divergent lenses 6.direct irradiations 7.optical fiberss 8. expandbundle 9. according to district's (facula position)

Fig. 2, hyperbaric chamber laser illumination beam reflex to according to the district through completely reflecting mirror

1.laser instrument 2.laser beams 3.hyperbaric oxygen chambers 4. laser entrance window 5.K₉Optical glass 6. is according to distinguishing (facula position) 7. completely reflectingmirror 8. universal transfers

Fig. 3, hyperbaric chamber laser irradiation are expanded the Shu Zhizhao district through divergent lens

1.laser instrument 2.laser beams 3.hyperbaric oxygen chambers 4. laser entrance window 5.K₉Optical glass 6. is according to distinguishing (facula position) 7. laser beam of completely reflectingmirror 8.universal transfer 9.divergent lenses 10. expansion bundles

Fig. 4. hyperbaric chamber laser illumination beam Rhizoma Nelumbinis goes into the photoconduction fiber

1.laser instrument 2.laser beams 3.hyperbaric oxygen chambers 4. laser incident mirror 5.K₉Shine 7. completely reflectingmirror 8.universal transfer 9. collectinglenses 10. optical fiberss of district's (facula position) inoptical glass 6. human bodies

Fig. 5. universal transfer structure

1. reflecting mirror (or divergent lens or collecting lens)eyeglass 2.mirrors overlap 3. pins, 4. turning-bar bulbs, 5.right clamping plate 6. left clampingplate 7. special-shapedscrew 8. base screws 9. bases 10. cover plates

Claims (13)

1, a kind of hyperbaric oxygen chamber that comprises the large and medium-sized and single type made from steel or fiberglass etc. of forming by treatment cabin, operation cabin and transfer chamber, mainly contain facility in cabin body and the cabin, compression system, oxygen system, air conditioning system, communication system, illumination and monitor device, parts such as bench board is characterized in that offering on described hyperbaric oxygen chamber with the laser beam of the medical laser of 2～30 meters distances in the hyperbaric oxygen chamber outside K by entrance window₉Optical glass is guided the into interior laser entrance window of hyperbaric oxygen chamber, form completely reflecting mirror, the divergent lens of suitable angular aperture and facula position through being contained in made laser-bounce on the hyperbaric oxygen bulkhead again, perhaps focus on Rhizoma Nelumbinis and go into photoconduction fiber or sight glass light guide bundles and introduce in the body cavity and carry out laser irradiation under the hyperbaric oxygen according to the district through collecting lens.

2, entrance window according to claim 1 is characterized in that the described hyperbaric chamber laser entrance window that is used for is that laser beam enters the special-purpose fenestra in the hyperbaric oxygen chamber, in cabin body one side apart from ground between 1～2 meter, 10 to 160 millimeters of diameters.

3, entrance window according to claim 1 is characterized in that the described hyperbaric chamber laser entrance window that is used for inlays the K that can reduce the absorption and the reflection loss of laser₉Optical glass parallel plane precision is 1/20 of a wavelength.

4, according to the described K of claim 1.3₉Optical glass is characterized in that measuring thoroughly at its two-sided light that can increase laser that is coated with, and makes the laser power loss that sees through less than 5% anti-reflection deielectric-coating, selects the K that plates which kind of anti-reflection deielectric-coating for use₉Optical glass lens is by laser instrument kind of using and wavelength decision.

5, entrance window according to claim 1 is characterized in that described K₉Optical glass is contained in the metal-back of an internal diameter band screw-socket, and the internal diameter of metal-back can be connected K with laser entrance window external diameter with spiral₉The seal washer that can prevent gas leakage is equipped with on the optical glass two sides.

6, K according to claim 1₉Optical glass is characterized in that described K₉6 to 8 millimeters of the thickness of optical glass, proof pressure is greater than 3.5 kg/cm, and entrance window is inlayed double-deck K₉Optical glass, 5 to 10 millimeters of middle spacings.

7, reflecting mirror according to claim 1 is characterized in that and can plate the multilamellar total reflection medium film according to using laser instrument kind and wavelength to select the medium of plated film for use.

8, divergent lens according to claim 1 is characterized in that to the size according to the hot spot of distinguishing, and select the radius of curvature of different divergent lenses according to distance for use.

9, collecting lens according to claim 1 and optical fibers or sight glass light guide bundles Rhizoma Nelumbinis are closed, but it is characterized in that closing in 1 or several optical fibers or light guide bundles through the laser beam Rhizoma Nelumbinis that collecting lens focuses on, and make Laser Transmission to shining district or endoceliac according to the district.

10, completely reflecting mirror, divergent lens, the collecting lens that is used for the irradiation of hyperbaric oxygen chamber inner laser according to claim 1, it is characterized in that on the bulkhead of the same horizontal level in entrance window opposite, being equipped with universal transfer, the turning-bar top is equipped with minute surface, can rely on the suitable angular aperture and the facula position of the rotation adjustment light beam of minute surface.

11, universal transfer according to claim 10 is characterized in that the bulb of two turning-bars is fixed by left and right sides clamping plate, becomes flexible and lock the activity of minute surface on the control turning-bar by special-shaped screw.

12, optical fibers according to claim 1, it is characterized in that described hyperbaric chamber laser entrance window focuses on collecting lens and the optical fibers Rhizoma Nelumbinis is closed, when the laser power of using is big, can close hyperbaric oxygen chamber outside Rhizoma Nelumbinis outfan is inserted replacement laser entrance window in the cabin with optical fibers, its light-conductive rate is about 60%, is another approach that realizes the hyperbaric chamber laser irradiation.

13, hyperbaric oxygen chamber according to claim 1 is characterized in that described large and medium-sized hyperbaric oxygen chamber adopts in its cabin of isolated oxygen supply oxygen concentration 25% when following, and the laser power in the cabin is entered in guiding can be identical with the power that uses in air under the normal pressure; In the single pure oxygen in high pressure cabin, import laser power 200～300 milliwatts in the cabin.

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