CN105640698A - Femtosecond laser cataract emulsification instrument - Google Patents
Femtosecond laser cataract emulsification instrument Download PDFInfo
- Publication number
- CN105640698A CN105640698A CN201610094032.1A CN201610094032A CN105640698A CN 105640698 A CN105640698 A CN 105640698A CN 201610094032 A CN201610094032 A CN 201610094032A CN 105640698 A CN105640698 A CN 105640698A
- Authority
- CN
- China
- Prior art keywords
- emulsification
- emulsification instrument
- femtosecond laser
- instrument
- instrument body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00885—Methods or devices for eye surgery using laser for treating a particular disease
- A61F2009/00887—Cataract
Abstract
The invention provides a femtosecond laser cataract emulsification instrument which comprises an emulsification instrument body. A needle capable of being in contact with a lenticular nucleus of a cataract patient is arranged at the front end of the emulsification instrument body, and a reflector is arranged at the front end of the needle. Two channels capable of leading to the outside of the emulsification instrument body are arranged in the emulsification instrument body and comprise the negative pressure channel and the filling and suction channel. A splitter is obliquely arranged at the front end in the emulsification instrument body, and a first lens, a rotatable wedge-shaped mirror and a movable second lens are sequentially arranged at the positions, behind the splitter, in the emulsification instrument body. According to the emulsification instrument, full femtosecond lasers are used for tearing bladders, the requirement for the experience of surgeons is low, and the emulsification efficiency is high.
Description
Technical field
The present invention relates to the technical field of armarium and apparatus, particularly relate to a kind of femtosecond laser cataract emulsion instrument.
Background technology
Ophthalmic diseases Investigation of incidence tissue (EDPRG) investigation of 2004 shows, within 2000, the U.S. has 20,500,000 people to suffer from cataract, it is contemplated that suffers to the year two thousand twenty 30000000 people or is about to suffer from cataract. Estimating according to hygiene department of China, the cataract operation amount of China in 2005 is about 510,000.
For the treatment of cataract patient, what employing was more at present is cataract phacoemulsification, and this kind of operation is a kind of ECCE formula. Basic skills is to do a little otch of 3mm at corneoscleral junction, stretches into after crystal nuclear is pulverized by ultrasonic disintegrator and pumps out, and ultrasonic emulsification associating intraocular lens implants is the comparatively effective treatment means for the treatment of cataract. Phacoemulsification technique is that the combined effect of the mechanical acceleration, sound miniflow and the cavitation that utilize supersonic vibration to produce makes cataract stone historrhexis, is emulsified, and by operation method that negative pressure is absorbed. But existing ultrasonic emulsification instrument have the disadvantage in that (1) phacoemulsification adjoint ophthalmic solution vibrations cause endothelial cell damage; (2) temperature that ultrasonic emulsification is adjoint improves affects eye inner tissue, and the super milk powder millstone top of tradition is the wedge angle of 30-40 degree, is easily caused Poster capsulorhexis during operation; (3) the super newborn inconvenient operation of tradition, doctor's learning time is long, needs rich experiences during operation.
It addition, currently also there is nanosecond laser phacoemulsification, what this kind was performed the operation has drawbacks in that (1) nanosecond laser is for receiving burnt level, and repetition rate relatively femtosecond laser is low, and operating rate is slow; (2) nanosecond laser energy is big, it is easy to penetrate crystal, excess energy is directly got on retina, affects retina cell; (3) nanosecond laser operating rate is slow, and emulsifying power is low, during fragmentation nucleus, not easily smashes less for cataract crystal nuclear uniformly, and in handle, optical fiber is little with handle inwall gap, during fragmentation nucleus sucking-off, it is easy to having turbulent flow, manual capsulorhexis needs longer clinical experience.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of femtosecond laser cataract emulsion instrument, this emulsification instrument adopts full femtosecond laser capsulorhexis, not only requires relatively low to operation doctors experience, and emulsifying power is high.
To achieve these goals, the invention provides a kind of femtosecond laser cataract emulsion instrument, including emulsification instrument body, the front end of emulsification instrument body is provided with the syringe needle that can contact with cataract patient nucleus lentis, and the front end of syringe needle is provided with reflecting mirror; Emulsification instrument body interior is provided with the two passes that can lead to outside emulsification instrument, and respectively passage is inhaled in negative pressure channel and filling; The front end of emulsification instrument body interior is tiltedly installed with splitter, is disposed with the first lens, rotatable wedge-shaped mirrors and moveable second lens in the emulsification instrument at splitter rear portion.
As the further optimization of the present invention, the external rings of wedge-shaped mirrors is provided with the runing rest that wedge-shaped mirrors can be driven to rotate, and is provided with sleeve between runing rest and emulsification instrument inner body wall.
As the further optimization of the present invention, the outside of the second lens is provided with movable magnet ring, be provided with between magnet ring and emulsification instrument inner body wall can be attracting with magnet ring electromagnetism sleeve pipe.
As the further optimization of the present invention, splitter is glass material.
As the further optimization of the present invention, the front end of emulsification instrument body is provided with the irrigation sleeve that can install syringe needle.
As the further optimization of the present invention, the front end of irrigation sleeve is oval.
As the further optimization of the present invention, the rear end of emulsification instrument body is provided with fibre-optical splice.
As the further optimization of the present invention, the back-end sealing of emulsification instrument body is provided with gland.
Present invention have an advantage that
(1) femtosecond laser cataract emulsion instrument in this invention, adopts femtosecond laser to carry out capsulorhexis, crystal nuclear emulsifying, improves surgical work efficiency, provide for cataract patient safer, more accurate modus operandi;
(2) the femtosecond laser cataract emulsion instrument of the present invention, at laser spot place, cataract crystal stone can be smashed by highdensity mental retardation femtosecond laser rapidly, by negative pressure system sucking-off;
(3) the femtosecond laser cataract emulsion instrument of the present invention, adopts ultrashort pulse, low-energy laser, had both pulverized cataract crystal stone, and do not had high temperature in adiabatic process, protects corneal tissue and retina cell.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the three-dimensional cutaway view of femtosecond laser cataract emulsion instrument in the present invention;
Fig. 2 is the cross sectional view of emulsification instrument in Fig. 1;
Fig. 3 is the axonometric chart of emulsification instrument front end in Fig. 1.
[accompanying drawing labelling]
1, emulsification instrument body; 11, splitter; 12, irrigation sleeve; 13, handle case; 14, the first lens; 15, sleeve; 16, wedge-shaped mirrors; 161, runing rest; 17, the second lens; 171, magnet ring; 18, fibre-optical splice; 19, gland; 2, syringe needle; 3, reflecting mirror.
Detailed description of the invention
Below, by exemplary embodiment, the present invention is specifically described. It should be appreciated, however, that when not being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated in other embodiments.
It is the schematic diagram of femtosecond laser cataract emulsifying treatment system in the present invention referring to Fig. 1, Fig. 1. as shown in Figure 1, the femtosecond laser cataract emulsion instrument of the present invention, including emulsification instrument body 1, emulsification instrument body 1 includes the handle case 13 of outside, and the inner passage of hollow, i.e. emulsification instrument body interior, the front end of emulsification instrument body 1 is provided with the syringe needle 2 that can contact with cataract patient nucleus lentis, emulsification instrument body 1 is internally provided with the two passes that can lead to outside emulsification instrument body 1, respectively passage is inhaled in negative pressure channel and filling, negative pressure channel is distributed in the two opposite sides of emulsification instrument body interior with filling suction passage, wherein negative pressure channel lead to the one end outside emulsification instrument be connected to can produce absorption nucleus lentis pressure negative pressure unit, filling suction passage leads to the one end outside emulsification instrument and is connected to and the filling of nucleus lentis sucking-off after emulsifying can be inhaled unit.
Referring to Fig. 2-Fig. 3, as shown in Fig. 2-Fig. 3, the front end within above-mentioned emulsification instrument body 1 is tiltedly installed with splitter 11, and this splitter 11 is splitter 11 is glass material;By the effect of splitter 11, the lens fragments after emulsifying can be directed to filling and inhale passage; The first lens 14, rotatable wedge-shaped mirrors 16 and moveable second lens 17 it are disposed with in the emulsification instrument at splitter 11 rear portion.
With continued reference to Fig. 2, the external rings of above-mentioned wedge-shaped mirrors 16 is provided with the runing rest 161 that wedge-shaped mirrors can be driven to rotate, and is provided with sleeve 15 between runing rest 161 and emulsification instrument inner body wall.
It addition, the outside of above-mentioned second lens 17 is provided with movable magnet ring 171, be provided with between magnet ring 171 and emulsification instrument inner body wall can be attracting with magnet ring electromagnetism sleeve pipe.
Referring to Fig. 2 and Fig. 3, the front end of emulsification instrument body 1 is provided with the irrigation sleeve 12 that can install syringe needle 2, and the front end of irrigation sleeve 12 is oval.
It addition, the rear end of above-mentioned emulsification instrument body 1 is provided with fibre-optical splice 18, this fibre-optical splice 18 can connect outward optical gate switch. The back-end sealing of emulsification instrument body 1 is provided with gland 19, this ensures that theres the sealing within emulsification instrument.
In order to further illustrate the present invention, illustrate below in conjunction with the use procedure of femtosecond laser cataract emulsion instrument in the present invention:
After femtosecond laser enters emulsification instrument, adjusting the front and back position of the second lens, femtosecond laser passes through the second lens, then passes through wedge mirror and first lens of rotation, further to the reflecting mirror of needle tip, thus arriving patient's lens surface; Negative pressure unit produces negative pressure inside negative pressure channel, and by negative-pressure adsorption crystal nuclear, Femtosecond-Laser Pulse Excitation is broken after cataractous lens core, and broken nucleus lentis changes its course via splitter, inhales passage sucking-off by filling; The rotating speed speed that wedge mirror rotates is 300 turns/S, when femtosecond laser acts on above patient's nucleus lentis each time, for the point of diameter 5 ��m, is rotated by wedge mirror, thus forming a lot of diameters is the circular incision of 0.5mm.
When crystal nuclear broken in art is too much, when blocking syringe needle, negative pressure in negative pressure channel improves, and then the second lens within control emulsification instrument are movable in the stride of 2mm, change focal position of laser, the circle diameter magnitude range that hot spot is formed can between 0.1-2mm, it is possible to reach the purpose of quick fragmentation nucleus.
Above example is only in order to illustrate technical scheme, but not is limited; Although the present invention being described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still the technical scheme described in previous embodiment can be modified, or wherein portion of techniques feature is carried out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of present invention technical scheme required for protection.
Claims (8)
1. a femtosecond laser cataract emulsion instrument, it is characterized in that, including emulsification instrument body (1), the front end of emulsification instrument body (1) is provided with the syringe needle (2) that can contact with cataract patient nucleus lentis, and the front end of syringe needle (2) is provided with reflecting mirror (3); Emulsification instrument body (1) is internally provided with and can lead to the two passes that emulsification instrument (1) is outside, and respectively passage is inhaled in negative pressure channel and filling; The front end of emulsification instrument body (1) inside is tiltedly installed with splitter (11), is disposed with the first lens (14), rotatable wedge-shaped mirrors (16) and moveable second lens (17) in the emulsification instrument at splitter (11) rear portion.
2. femtosecond laser cataract emulsion instrument according to claim 1, it is characterized in that, the external rings of wedge-shaped mirrors (16) is provided with the runing rest (161) that wedge-shaped mirrors can be driven to rotate, and is provided with sleeve (15) between runing rest (161) and emulsification instrument inner body wall.
3. femtosecond laser cataract emulsion instrument according to claim 1 or claim 2, it is characterized in that, the outside of the second lens (17) is provided with movable magnet ring (171), be provided with between magnet ring (171) and emulsification instrument inner body wall can be attracting with magnet ring electromagnetism sleeve pipe.
4. femtosecond laser cataract emulsion instrument according to claim 3, it is characterised in that splitter (11) is glass material.
5. femtosecond laser cataract emulsion instrument according to claim 1, it is characterised in that the front end of emulsification instrument body (1) is provided with the irrigation sleeve (12) that can install syringe needle (2).
6. femtosecond laser cataract emulsion instrument according to claim 5, it is characterised in that the front end of irrigation sleeve (12) is oval.
7. femtosecond laser cataract emulsion instrument according to claim 2, it is characterised in that the rear end of emulsification instrument body (1) is provided with fibre-optical splice (18).
8. femtosecond laser cataract emulsion instrument according to claim 1, it is characterised in that the back-end sealing of emulsification instrument body (1) is provided with gland (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094032.1A CN105640698B (en) | 2016-02-19 | 2016-02-19 | A kind of femtosecond laser cataract emulsion instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094032.1A CN105640698B (en) | 2016-02-19 | 2016-02-19 | A kind of femtosecond laser cataract emulsion instrument |
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| CN105640698A true CN105640698A (en) | 2016-06-08 |
| CN105640698B CN105640698B (en) | 2018-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973336A (en) * | 2020-09-23 | 2020-11-24 | 北京航空航天大学 | Negative pressure adsorption type capsulorhexis forceps with force sensing capability |
| WO2022013685A1 (en) | 2020-07-13 | 2022-01-20 | Johnson & Johnson Surgical Vision, Inc. | Probe for eye examination using a distal convex mirror |
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| US5139504A (en) * | 1987-05-01 | 1992-08-18 | Ophthalmocare, Inc. | Apparatus, system, and method for softening and extracting cataractous tissue |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022013685A1 (en) | 2020-07-13 | 2022-01-20 | Johnson & Johnson Surgical Vision, Inc. | Probe for eye examination using a distal convex mirror |
| CN111973336A (en) * | 2020-09-23 | 2020-11-24 | 北京航空航天大学 | Negative pressure adsorption type capsulorhexis forceps with force sensing capability |
| CN111973336B (en) * | 2020-09-23 | 2021-10-29 | 北京航空航天大学 | Negative pressure adsorption type capsulorhexis forceps with force sensing capability |
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| Publication number | Publication date |
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| CN105640698B (en) | 2018-12-14 |
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Effective date of registration: 20200108 Address after: Room 603, Building No. 100, Qinzhou Road, Xuhui District, Shanghai, 200235 Patentee after: Shanghai Tingyimei Technology Co., Ltd. Address before: 201702, room 7, No. 101, Lane 1301, Shanghai Qing Ping highway, Shanghai, Minhang District Patentee before: Peng Wenge |
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