CN201564599U

CN201564599U - Water spraying optical fiber system for laser minimally-invasive operation

Info

Publication number: CN201564599U
Application number: CN200920214807XU
Authority: CN
Inventors: 张正茂
Original assignee: SHANGHAI RUIKEEN LASER TECHNOLOGY Co Ltd
Current assignee: SHANGHAI RUIKEEN LASER TECHNOLOGY Co Ltd
Priority date: 2009-12-16
Filing date: 2009-12-16
Publication date: 2010-09-01
Anticipated expiration: 2019-12-16

Abstract

The utility model relates to an optical fiber system for a laser minimally-invasive operation, and particularly relates to a water spraying optical fiber system for holmium laser and thulium laser minimally-invasive operation, which mainly solves the technical problems that the human tissues can not be effectively vaporized when the holmium laser and the thulium laser are in a close-contact mode. The utility model adopts the technical scheme that the water spraying optical fiber system for the laser minimally-invasive operation comprises optical fiber, a sealed water spraying cavity, a water pressure control valve and a charging pump; the sealed water spraying cavity is additionally formed outside the optical fiber; a front-end sealing sleeve and a rear-end sealing sleeve are arranged at two ends of the sealed water spraying cavity; a circle of water spraying holes are uniformly distributed on the end surface of the front-end sealing sleeve; a lateral water inlet pipe communicated with one side of the rear end is positioned on the sealed water spraying cavity; and then the lateral water inlet pipe is connected with the water pressure control valve and the charging pump in sequence. The utility model is mainly applied to minimally-invasive and cutting vaporized human tissues by matching with an endoscope.

Description

Laser micro-hurt operation water spray fibre system

Technical field

This utility model relates to a kind of laser micro-hurt operation fibre system, and particularly a kind of holmium laser, the operation of thulium laser micro-hurt can cooperate the use of endoscope, Wicresoft, cutting, vaporization tissue with the water spray fibre system.

Background technology

Two during the last ten years, has been extensive use of CO in the medical treatment ₂Laser and Nd:YAG laser, CO ₂Optical maser wavelength is 10.6 μ m, because wavelength is long, at present technically can't pass through fiber optic conduction, can only conduct with joint arm, and the scope of application is subjected to bigger restriction, can only be used for body surface and treat, and can't do intravital minimally-invasive treatment by endoscopic system.Nd:YAG optical maser wavelength 1.06 μ m, water in the tissue and HbO2 Oxyhemoglobin are all bad to its absorption, and the laser large tracts of land penetrates tissue and slowly heating, and heat will reject heat to before the vaporization of the shallow organized layer of table in the tissue of deep layer and go.Laser penetrates too dark in tissue, and is big to the normal surrounding tissue damage, and the solidification layer that reaches 7mm deeply can bring early stage edema and long-term slough to come off, and the post-operative recovery phase is longer.

Holmium laser, thulium laser can transmit by soft fiber, thereby can laser energy be imported in the body cavity by endoscope treatment with rubble is vaporized, cuts, solidified to lesion tissue.Holmium optical maser wavelength 2.1 μ m, thulium optical maser wavelength 2.0 μ m are on the inferior absworption peak of water just, so laser energy can be by water efficient absorption in body foci's tissue.The hydrone that obtains laser energy can be implemented micro-explosion to calculosis, tissue is vaporized, cut, and because water is to the good absorption of holmium laser, thulium laser, energy is just fully absorbed in superficial tissue, can not conduct in the deep tissues, holmium laser, the penetration depth of thulium laser in tissue are less than 0.4mm, thereby can carry out the cutting of precise and safety at tissue surface, haemostatic effect is remarkable, safe and reliable, can ideally disposable thorough solution urinary system calculus, common disease such as narrow, polyp, tumor.Treatment late relapse rate and sequela patient suffering degree, surgery cost and hospital surgical risk all reduce greatly.

Holmium laser, thulium Laser emission be that invisible, wavelength is the infrared laser beam of 2.1 μ m, 2.0 μ m, its water absorbs strong.For fear of the hot injury, intracavity operation all is to carry out in water environment, laser beam can at first heat flushing liquor and produce steam bubble and consumed a lot of laser energies, and steam bubble causes the visual field unintelligible, and must arriving organizing ability, light beam works, therefore really affact target tissue when surperficial when laser, most of energy loss in transmission course.In the adosculation pattern, finish said process and spent the too many time, laser could be directly in the face of organizing, therapeutic effect must be restricted, the tissue so holmium laser, thulium laser can't effectively be vaporized when the adosculation pattern.

The utility model content

The purpose of this utility model is to provide a kind of holmium laser, thulium laser micro-hurt operation water spray fibre system.Mainly solve when the adosculation pattern, can't effectively the vaporize technical problem of tissue of holmium laser, thulium laser.

The technical solution of the utility model is: a kind of laser micro-hurt operation water spray fibre system, form by optical fiber, sealing spray chamber, hydraulic control valve and charge pump, optical fiber installs the sealing spray chamber outward additional, be provided with forward end seal cover and back-end sealing cover at sealing spray chamber two ends, the uniform circle hole for water spraying of forward end seal cover end face, be positioned at rear end one side and be communicated with the side water inlet pipe on the sealing spray chamber, the side water inlet pipe is connected with charge pump with hydraulic control valve more successively.

The beneficial effects of the utility model: holmium laser, the operation of thulium laser micro-hurt are inserted from the back-end sealing cover with optical fiber, pass the sealing spray chamber, stretch out from the front end sealing shroud, the uniform circle hole for water spraying of preceding sealing shroud end face, water sprays from aperture during work, forms the tubulose water curtain, is wrapped in laser beam, prevent that laser from overflowing, the damage tissue.Laser acts directly on the pathological tissues, and energy all is organized absorption, and work efficiency improves tens of times, and the water curtain of ejection absorbs the smog that produces when cut is organized, and keeps getting a clear view.Water curtain plays cleaning, cooling effect simultaneously, takes away unnecessary heat, avoids being transmitted in the deep tissues, prevents the hot injury, and patient's sequela is few, recovers fast.It is fast to have Wicresoft, cutting vaporization tissue efficient height, rubble, and surgical field of view is clear, avoids the hot injury, and operating time is short, and sequela is few, and patient recovers soon, the characteristics that patient's misery is little.Seal spray chamber simultaneously optical fiber is cooled off, can improve optical fiber service life and pass through energy.

Description of drawings

Fig. 1 is this utility model structural representation

Fig. 2 is this utility model forward end seal cover end face structure sketch map

Among the figure: the 1-charge pump, the 2-hydraulic control valve, 3-side water inlet pipe, 4-back-end sealing cover, 5-optical fiber, 6-seals spray chamber, 7-forward end seal cover, 8-hole for water spraying.

The specific embodiment

With reference to Fig. 1,2, a kind of laser micro-hurt operation is made up of optical fiber 5, sealing spray chamber 6, hydraulic control valve 2 and charge pump 1 with the water spray fibre system, and described optical fiber is for containing low OH silica fibre, and diameter is 100 μ m-1000 μ m; The optical fiber 5 outer sealing spray chambers 6 that install additional, sealing spray chamber 6 long 200mm～3000mm, diameter 0.2mm～5mm, cavity is made by softish high molecular film material; Be provided with forward end seal cover 7 and back-end sealing cover 4 at sealing spray chamber 6 two ends, forward end seal is overlapped the uniform circle hole for water spraying 8 of 7 end faces, hole for water spraying bore dia 0.01～0.5mm, be positioned at rear end one side and be communicated with side water inlet pipe 3 on sealing spray chamber 6, side water inlet pipe 3 is connected with charge pump 1 with hydraulic control valve 2 more successively.Hydraulic control valve 2 is electromagnetic valve or hand-operated valve, and the pressure of charge pump can be regulated the injection pressure size according to the needs of operation.

Optical fiber 5 inserts from back-end sealing cover 4, passes sealing spray chamber 6, stretches out from front end sealing shroud 7, the uniform circle hole for water spraying of preceding sealing shroud 7 end faces, water sprays from aperture during work, forms the tubulose water curtain, be wrapped in laser beam, prevent that laser from overflowing, the damage tissue.Laser acts directly on the pathological tissues, and energy all is organized absorption, and work efficiency improves tens of times, and the water curtain of ejection absorbs the smog that produces when cut is organized, and keeps getting a clear view.Water curtain plays cleaning, cooling effect simultaneously, takes away unnecessary heat, avoids being transmitted in the deep tissues.

Claims

1. a laser micro-hurt is performed the operation with the water spray fibre system, it is characterized in that forming by optical fiber, sealing spray chamber, hydraulic control valve and charge pump, optical fiber installs the sealing spray chamber outward additional, be provided with forward end seal cover and back-end sealing cover at sealing spray chamber two ends, the uniform circle hole for water spraying of forward end seal cover end face, be positioned at rear end one side and be communicated with the side water inlet pipe on the sealing spray chamber, the side water inlet pipe is connected with charge pump with hydraulic control valve more successively.

2. laser micro-hurt operation according to claim 1 is characterized in that described optical fiber for containing low OH silica fibre with the water spray fibre system, and diameter is 100 μ m-1000 μ m.

3. laser micro-hurt operation according to claim 1 is characterized in that the long 200mm～3000mm of described sealing spray chamber, diameter 0.2mm～5mm with the water spray fibre system.

4. laser micro-hurt operation according to claim 1 is characterized in that with the water spray fibre system described hole for water spraying diameter is 0.01～0.5mm.

5. laser micro-hurt operation according to claim 1 is characterized in that with the water spray fibre system described hydraulic control valve is electromagnetic valve or hand-operated valve.