CN101175459A - Ophthalmologic laser treatment instrument - Google Patents
Ophthalmologic laser treatment instrument Download PDFInfo
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- CN101175459A CN101175459A CNA2006800162546A CN200680016254A CN101175459A CN 101175459 A CN101175459 A CN 101175459A CN A2006800162546 A CNA2006800162546 A CN A2006800162546A CN 200680016254 A CN200680016254 A CN 200680016254A CN 101175459 A CN101175459 A CN 101175459A
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Abstract
An ophthalmologic laser treatment instrument capable of cooling an eyeball and applying a laser beam while reducing corneal edema in order to prevent complications caused by eyeball heating and enhance a treatment effect by applying laser beam at a heavier laser intensity. The ophthalmologic laser treatment instrument comprises a light transmitting member (lens (3)) for guiding a laser beam to an eyeball, and a spacer (a cooling room forming unit (14)) for forming a specified space (a cooling room (13)) between the eyeball (2) and the light transmitting member (lens (3)), wherein the eyeball during the irradiation of a laser beam can be cooled by way of fluid supplied to the cooling room (13).
Description
Technical field
The present invention relates to a kind of Ophthalmologic device for laser therapy that utilizes laser beam, relate in particular to a kind of Ophthalmologic device for laser therapy that is used for laser iridectomy.
Background technology
In the ophthalmology, now adopted a kind of cornea contact-type to connect the laser therapy that eyeglass see through cornea (trans-corneal), eyeglass like this, the laser beam that sends from laser oscillator can arrive the inner therapeutic effect that reaches of eyeball by eyeglass and cornea
Typical laser therapy eyeglass are that the iridectomy that is disclosed among the Japanese Laid-Open Patent Application 63-29639 connects eyeglass.These excision eyeglass are such: laser light incident side lens and laser emission side lens (eyeball contact side lens) are accommodated in the lens fixture, and these eyeglass prevent that extraneous light from entering eyeball inside.Apply laser to eyeglass when lens are placed on the eyeball, lens can focus on laser beam on the iris operator.Laser after the focusing increases luminous energy density, thereby is bored a hole on iris by the heat that luminous energy density produced that increases.
As mentioned above, laser iridectomy is accompanied by the generation of heat, that is to say because in order on iris, to apply laser beam repeatedly in perforation on the iris, thus because of laser to human body generation effect.Laser beam produces heat effect on cornea by cornea the time, and simultaneously, by the increase that imposes on iris the heat that luminous energy density produced on the aqueous humor of iris and eyeball, produce heat effect.
Heat effect on the aqueous humor of cornea, iris and eyeball causes complicated syndrome (complication) usually, such as high intraocular pressure, bullous keratopathy (bllous keratopathy) or similar disease etc.When especially developing into acute glaucoma, cause complicated complication easily owing to corneal edema (keratoedema).
Laser therapy eyeglass of the prior art contact lens with eyeball, disperse by cornea thereby hindered the heat that is gathered in the eyeball.For fear of the complicated complication that causes by producing heat, need to lower the intensity of laser.Yet, the feasible therapeutic effect that is difficult to when carrying out iridectomy, produce needs of the intensity of reduction laser.
Therefore, an object of the present invention is to overcome above shortcoming, a kind of Ophthalmologic device for laser therapy is provided, this device can cool off eyeball, thereby strengthen therapeutic effect by the incidence rate that applies high-intensity laser beam and when using laser beam, reduce corneal edema, prevent the complication that causes owing to the heat that on eyeball, is produced simultaneously.
Summary of the invention
According to the present invention, a kind of Ophthalmologic device for laser therapy is provided, this device has light transparent member so that laser beam is directed to eyeball, and is provided with distance member to keep predetermined space between light transparent member and eyeball.
This structure by a kind of liquid being introduced in this space so that liquid directly contact with eyeball, thereby the cooling eyeball.
Because liquid directly contacts with the cooling eyeball with eyeball, this liquid makes operator can cool off eyeball fully, and can cool off eyeball when carrying out laser therapy.By in liquid, adding medicine, can also when carrying out laser therapy, directly carry out the necessary medicine treatment to eyeball.
In the Ophthalmologic device for laser therapy according to technical scheme 1, distance piece is to be removably mounted on the light transparent member.
This makes operator form the space between light transparent member and eyeball when the cooling eyeball.Because distance piece removably arranges, therefore can distance piece be used once or for several times after distance piece is abandoned, can guarantee maintenance good concerning medical apparatus and instruments, high-quality and sanitary condition thus.
Also might distance piece be attached to current in the widely used existing eyeglass in ophthalmology laser treatment field for various reasons.
In the Ophthalmologic device for laser therapy of technical scheme 3, light transparent member is configured to contact with eyeball and laser beam is directed to eyeball, and is provided with the fluid passage, and fluid is flowed through this passage with the cooling eyeball.This fluid passage is positioned at the position away from eyeball.
This structure make eyeball by contact with eyeball and cooled off by the fluid-cooled light transparent member, fluid is just directly contacted with eyeball can cool off eyeball, this makes operator can make the eyeball cooling and can not be subjected to fluidic composition and mobile the influence.
In the ophthalmology laser refrigerating plant of technical scheme 4, the fluid passage is positioned at the light transparent member inboard.Because fluid is taken away heat from the inboard of light transparent member, this makes fluid can cool off light transparent member fully.
In the ophthalmology laser refrigerating plant of technical scheme 5, be provided with transparent separation wall with in light transparent member be used for discharging between the laser oscillator of laser beam and form the space.
By transparent separation wall is set, just can prevent vapor in the atmosphere condensation on light transparent member.Do not having under the situation of condensation, just can when carrying out laser therapy, make laser beam, and can not hinder operator's the visual field all rightly by light transparent member.
Technical scheme 6
In the ophthalmology laser refrigerating plant of technical scheme 6, be provided with the transparent body in a side of light transparent member, a described side is a side relative with eyeball, and is provided with distance piece to form the space between the light transparent member and the transparent body.The fluid passage is set between the light transparent member and the transparent body.
This structure makes fluid cooling light transparent member by making fluid flow through a light transparent member side relative with eyeball, with regard to not forming for the inboard in light transparent member as the hollow space of fluid passage light transparent member is carried out machined like this.
In the ophthalmology laser refrigerating plant of technical scheme 7, light transparent member is formed by the elastic film of flexibility.
This can attach to light transparent member on the eyeball operator by the Elastic Contact between light transparent member and the eyeball, make light transparent member work thus, and in other cases, when light transparent member was unexpectedly stressed, this light transparent member can be broken and eyeball is produced injury.
In the ophthalmology laser refrigerating plant of technical scheme 8, be provided with the fluid supply part with accommodating fluid, and be provided with control assembly functionally to control the fluid supply part.The control assembly regulated fluid flows, thereby the structure of light transparent member conforms to the structure of eyeball.
In this structure, control assembly cosily contacts cornea contact wall (light transparent member) with eyeball, can not apply significant burden on eyeball.
In the ophthalmology laser refrigerating plant of technical scheme 9, be provided with transparent separation wall with at the transparent body be used for discharging between the laser oscillator of laser beam and form the space.
By transparent separation wall is set, just might prevent vapor in the atmosphere condensation on light transparent member.Do not having under the situation of condensation, just might when carrying out laser therapy, make laser beam see through the transparent body all rightly, and can not hinder operator's the visual field.
In the ophthalmology laser refrigerating plant of technical scheme 10, distance piece and light transparent member are removably mounted on the transparent body.
This makes operator form the fluid passage between light transparent member and eyeball when the cooling eyeball.Because distance piece and light transparent member are removably arranged, therefore might after each use distance piece and light transparent member or after the use for several times they be abandoned, and guarantee maintenance good concerning medical apparatus and instruments, high-quality and sanitary conditions thus.
Also might be attached to distance piece and light transparent member current in the widely used existing eyeglass in ophthalmology laser treatment field for various reasons.
In the ophthalmology laser refrigerating plant of technical scheme 11, be provided with the fluid cooling-part with cooling fluid, and be provided with control assembly functionally to control the fluid cooling-part.This fluid cooling-part work makes fluidic temperature meet target temperature basically to regulate.
This makes operator can keep suitable fluid temperature (F.T.), and in cooling during eyeball, to require be different to this fluid temperature (F.T.) because of different laser application times and cool position.
In the ophthalmology laser refrigerating plant of technical scheme 12, light transparent member is configured to contact with eyeball, thereby laser beam is directed to eyeball.Amber ear card bonder (Peltier ' scouple) is installed on light transparent member.Light transparent member is finally cooled off eyeball by the bonder cooling of amber ear card.
This makes operator cool off light transparent member immediately and need not utilize fluid.With use fluidic situation to compare in cooling during light transparent member, amber ear card bonder makes light transparent member avoid vibration.
Amber ear card bonder has good response to variation of temperature, thereby can carry out temperature control accurately.
In the ophthalmology laser refrigerating plant of technical scheme 13, be provided with Chu Chi with receiving fluids in the inboard of light transparent member, amber ear card bonder carries out work with cooling light transparent member and the fluid that is contained in the storage pond.
Compare with the situation of only using amber ear card bonder to cool off light transparent member, this fluid can produce convection current in the fluid of Chu Chizhong, to cool off light transparent member equably.
This storage pond can make not to be needed to be provided for to supply or the import or export passage of exhaust fluid, and under should not the situation in storage pond, for making the fluid circulation, the import or export passage be necessary for light transparent member.This makes the designs simplification of light transparent member.
In the ophthalmology laser refrigerating plant of technical scheme 14, be provided with transparent separation wall with in light transparent member be used for discharging between the laser oscillator of laser beam and form the space.
This can prevent vapor in the atmosphere condensation on light transparent member.Do not having under the situation of condensation, just can when carrying out laser therapy, make laser beam see through the transparent body all rightly, and can not hinder operator's the visual field.
In the ophthalmology laser refrigerating plant of technical scheme 15, light transparent member is the lenticular unit that is used for collecting laser beam, so that laser beam focuses on eyeball.
This place that makes operator that laser beam is needed on eyeball focuses on, and strengthens the density of laser beam simultaneously.
Technical scheme 16
In the ophthalmology laser refrigerating plant of technical scheme 16, be provided with focusing block, thereby laser beam focused in the optional position of eyeball by refraction on light transparent member or reflection lasering beam.
This position that makes operator that laser beam is needed on eyeball focuses on, and strengthens the density of laser beam simultaneously.
Description of drawings
Fig. 1 is the longitudinal section of the Ophthalmologic device for laser therapy of first embodiment according to the invention;
Fig. 2 is the longitudinal section of Ophthalmologic device for laser therapy of a version of first embodiment according to the invention;
Fig. 3 is the longitudinal section according to the Ophthalmologic device for laser therapy of second embodiment of the present invention;
Fig. 4 is the longitudinal section according to the Ophthalmologic device for laser therapy of the 3rd embodiment of the present invention;
Fig. 5 is the longitudinal section according to the Ophthalmologic device for laser therapy of the version of the 3rd embodiment of the present invention;
Fig. 6 is the longitudinal section according to the Ophthalmologic device for laser therapy of another version of the 3rd embodiment of the present invention;
Fig. 7 is the fragmentary perspective cross sectional view according to the Ophthalmologic device for laser therapy of the 4th embodiment of the present invention;
Fig. 8 is the longitudinal section according to the Ophthalmologic device for laser therapy of the 5th embodiment of the present invention;
Fig. 9 is the longitudinal section of Ophthalmologic device for laser therapy according to a sixth embodiment of the present;
Figure 10 is the longitudinal section according to the Ophthalmologic device for laser therapy of the 7th embodiment of the present invention;
Figure 11 is the longitudinal section according to the Ophthalmologic device for laser therapy of the 8th embodiment of the present invention;
Figure 12 (a) is the longitudinal section according to the Ophthalmologic device for laser therapy of the 9th embodiment of the present invention;
Figure 12 (b) is according to the side view of seeing Ophthalmologic device for laser therapy in the past among the 9th embodiment of the present invention from laser oscillator.
The drawing reference numeral explanation
1 Ophthalmologic device for laser therapy
2 eyeballs
3 lens (light transparent member, the transparent body and focusing block)
4 lens fixtures
5 partition walls
10 holder cylindrical shells
14 refrigerators form part (distance piece)
20 storage tanks
21 pumps (fluid supply part)
22 computers (control assembly)
30 fluid passage (fluid passage)
40 outer fluid passages (fluid passage)
50 flow channels
60 flow channels
61 corneas contact wall (light transparent member)
62 fluid passages form part (distance piece)
65 refrigerator devices (fluid cooling-part)
80 amber ears card bonder
90 storage ponds
The specific embodiment
According to the present invention, a kind of Ophthalmologic device for laser therapy makes the operator can operating laser beam, cools off eyeball simultaneously, and the incidence rate of corneal edema is reduced.For this purpose, be provided with light transparent member so that laser beam is directed to eyeball.Distance piece is set between light transparent member and eyeball, to keep predetermined space.By fluid being directed in the space so that fluid directly contact with eyeball, thereby the cooling eyeball.On the other hand, light transparent member is set contacting, thereby laser beam is directed to eyeball with eyeball.The fluid passage is set, and fluid is flowed through this fluid passage with the cooling eyeball.The fluid passage is away from eyeball.
First embodiment of the present invention
[structure of first embodiment]
Referring to Fig. 1, shown in the figure is the Ophthalmologic device for laser therapy 1 of first embodiment according to the invention.Fig. 1 demonstrates the sketch map that is placed with the Ophthalmologic device for laser therapy 1 that contacts with eyeball 2.In Fig. 1, the straight line of the above-below direction from the top to the bottom is consistent with the direction of gravity, and the left side of this figure is the position at laser oscillator place.The right side of figure is the position at eyeball place, and upside is parietal bone of head one side, and downside is upper jaw bone one side.
Ophthalmologic device for laser therapy 1 is directed to patient's eyeball 2 with laser beam from laser oscillator, and this device has the lens 3 as light transparent member, and lens 3 aggregation laser bundles also focus on laser beam on eyeball 2.In Ophthalmologic device for laser therapy 1, be provided with lens fixture 4 with supporting lens 3 structurally.Transparent separation wall 5 is set, thereby cooperates the airtight space of formation with lens 3.
According to the present invention, being shaped as of lens fixture 4 is cylindrical, and has holder cylindrical shell 10, and lens 3 are installed on the inner circumferential side of lens fixture 4 hermetically.Lens 3 have cylindrical part 11 at an end relative with laser oscillator.The diameter of cylindrical part 11 is bigger than holder cylindrical shell 10.Be provided with conical shell 12 between cylindrical part 11 and holder cylindrical shell 10, the diameter of this conical shell is along with increasing gradually near cylindrical part 11.Holder cylindrical shell 10, cylindrical part 11 and conical shell 12 are integrally formed and constitute lens fixture 4 by synthetic resin.
Holder cylindrical shell 10 is fixed on lens 3 on the inner surface of holder cylindrical shell 10, and refrigerator forms part 14 and forms a distance piece, thereby provides predetermined space as cooling chamber 13 between lens 3 and eyeball 2.Refrigerator forms the side of part 14 ratios from the recessed face side 7 more close eyeballs 2 of lens 3.
Ophthalmologic device for laser therapy 1 also has fluid supply part and control assembly, and this control assembly is functionally controlled the fluid supply part.The fluid supply part is with the form work of pump 21, and this pump passes through inlet hole 18 to cooling chamber 13 accommodating fluids from storage tank 20.Storage tank 20 is communicated with inlet hole 18 as fluid provider.Control assembly control pumps 21 with using a computer 22 these well-known device functionality.By regulating the pumping velocity of pump 21, can control the Fluid Volume that flows to cooling chamber 13.Fluid temperature (F.T.) by fluidic temperature and detection in the detection storage tank 20 are discharged from outlet opening 19 can raise regulated fluid speed according to the heat from back one temperature to last temperature.
The first end wall 5a forms the first space 5c with lens 3, and the second end wall 5b forms the second space 5d with the first end wall 5a.
[Therapeutic Method of first embodiment according to the invention]
Along with bonding part 15 is placed on the eyeball 2, laser beam is discharged on the lens 3 that supported by lens fixture 4.
When discharging laser beam, storage tank 20 is supplied hypertonic solutions by inlet hole 18 to cooling chamber 13 off and on.The hypertonic solution cooling chamber 13 of flowing through, and this fluid contacts with eyeball 2, thus when discharging laser beam, heat is taken away from eyeball 2.
According to the heat that is produced on eyeball 2 owing to laser beam, control assembly is regulated, and to increase the pumping velocity to the pump 21 of cooling chamber 13 accommodating fluids, increase flows to the fluidic amount of cooling chamber 13 thus, cools off eyeball 2 simultaneously thereby carry out laser therapy.
[advantage that first embodiment of the present invention produced]
In Ophthalmologic device for laser therapy 1, storage tank 20 intermittently passes through inlet hole 18 to cooling chamber 13 accommodating fluids, and this fluid directly contacts with eyeball 2 and eyeball 2 is cooled off, up to discharging from outlet opening 19.
Because fluid directly contacts with the cooling eyeball with eyeball, this fluid makes operator can cool off eyeball 2 effectively, and cools off eyeball 2 when carrying out laser therapy.By in fluid, adding other medicines, can when carrying out laser therapy, directly directly carry out the necessary medicine treatment to eyeball 2.
First embodiment according to the invention might be extracted into liquid in the eyeball 2 in the fluid by using hypertonic solution.When carrying out laser therapy, cool off eyeball 2 simultaneously and help to improve (ameriorate) common and concurrent corneal edema of acute glaucoma.Be understandable that, also can water or the solution that is added with medicine replace hypertonic solution.
Refrigerator forms part 14 and overhead has outlet opening 19 along the direction opposite with gravity direction in bone side place.If foam appears in fluid therein, then refrigerator forms part 14 and discharges cooling chamber 13 at outlet opening 19 places collection foam and with foam, rather than they are retained in the fluid.Do not have foam in the fluid, just can carry out laser therapy and can not hinder laser beam path and operator's the visual field.
Owing to be negative pressure in cooling chamber 13, then the liquid in the eyeball 2 might be drawn into fluid side, when carrying out laser therapy, cool off eyeball 2 simultaneously and help to improve (ameriorate) common and concurrent corneal edema of acute glaucoma.Be understandable that, also can water or be added with the solution of medicine.
By detecting the fluid temperature (F.T.) in the storage tank 20 and detecting the fluid temperature (F.T.) of discharging from outlet opening 19, can come regulated fluid speed by the pumping velocity of control pump 21, this is regulated according to the heat from back one temperature to last temperature increases, and so just might when carrying out laser therapy eyeball 2 basic coolings be remained under the stationary temperature.
When supplying fluid to cooling chamber 13, the temperature of lens 3 is cooled to below the ambient temperature.Owing to being sealed to be sealed in the cylindrical part 11, end wall 5a, 5b form the first space 5c and the second space 5d between the lens 3 and laser oscillator, space 5c, 5d might strengthen effect of heat insulation, thereby preventing has condensation on lens 3, avoids the laser beam path and the visual field to be stopped on lens 3 thus.Be appreciated that one of end wall 5a, 5b can omit when realizing effect of heat insulation.By making space 5c, 5d make vacuum, can improve effect of heat insulation widely.Transparent partition wall 5 prevents that the laser beam path and the visual field are blocked on lens 3.
[version of first embodiment]
Fig. 2 (a) and Fig. 2 (b) demonstrate the version of first embodiment of the present invention.Fig. 2 (a) is the longitudinal section of Ophthalmologic device for laser therapy 1, and Fig. 2 (b) is the cross-sectional view along the line A-A of Fig. 2 (a).
In Ophthalmologic device for laser therapy 1, inlet hole 18 forms the inner surface of part 14 along refrigerator tangential direction forms, and this inner surface surrounds cooling chamber 13.Outlet opening 19 forms along the tangential direction that refrigerator forms part 14, and it is opposite with the direction of inlet hole 18.When fluid was supplied to cooling chamber 13 by inlet hole 18, fluid flow to the inner surface of cooling chamber 13, thereby formed spiral flow in fluid.
Owing to there is spiral flow, the fluid in the central area forms low pressure, reduces the fluid that spills cooling chamber 13 thus when carrying out laser therapy, and fluid stream directly contacts with eyeball 2 when treatment.Along with in fluid, forming the area of low pressure, center, liquid component might be extracted out to fluid side from cornea and eyeball 2, help to improve corneal edema thus, this symptom usually carry out laser therapy, when cooling off eyeball 2 simultaneously and acute glaucoma concurrent.
Second embodiment
Fig. 3 shows second embodiment of the present invention, and this figure mainly shows the different structure with first embodiment of the present invention.In second embodiment of the present invention, refrigerator formation part 14 is prepared individually and is releasably attached on the lens 3.
Because refrigerator forms part 14 and removably arranges, therefore might after each use refrigerator forms part 14 or after refrigerator formation part 14 has been used for several times, it be abandoned, thereby guarantee maintenance good for medical apparatus and instruments, high-quality and sanitary condition.
Also might refrigerator be formed part 14 for different purposes is attached to current in the widely used existing eyeglass in ophthalmology laser treatment field.
The 3rd embodiment of the present invention
[structure of the 3rd embodiment]
Fig. 4 shows the 3rd embodiment of the present invention, and this figure mainly shows the different structure with first embodiment of the present invention.Fig. 4 is the longitudinal section of Ophthalmologic device for laser therapy 1.In Fig. 4, the straight line of the above-below direction from the top to the bottom is consistent with the direction of gravity, and the left side of this figure is the position at laser oscillator place.The right side of figure is the position at eyeball 2 places, and upside is parietal bone of head one side, and downside is upper jaw bone one side.
In the 3rd embodiment of the present invention, Ophthalmologic device for laser therapy 1 has the lens fixture 4 of lens 3 and supporting lens 3.Be provided with partition wall 5, this partition wall cooperates the formation seal cavity with lens 3.Lens 3 serve as light transparent member, and it contacts with eyeball 2, and laser beam is directed to eyeball 2.
Holder cylindrical shell 10 forms lens fixtures 4, this lens fixture not with the position from eyeball 2 than forming part 14 corresponding parts from the nearer refrigerator of recessed face side 7.Lens 3 directly contact its recessed face side 7 with eyeball 2.
The circumferential opening end of holder cylindrical shell 10 forms bonding part 15, to contact with eyeball 2.Bonding part 15 forms in the recessed structure of the outer surface unanimity of eyeball 2 shape of its outer surface and the shape of recessed face side 7.
In Ophthalmologic device for laser therapy 1, make the inside of lens 3 be hollow, thereby form internal channel 30.Internal channel 30 has column cavity 31, intake channel 32 and exit passageway 33.Column cavity 31 is arranged on the centre of lens 3.The intake channel 32 that is arranged on the jawbone side is communicated with column cavity 31.The exit passageway 33 that is arranged on the parietal bone of head side is communicated with column cavity 31.In jawbone one side, holder cylindrical shell 10 limits inlet hole 18, and forms oral pore 19 in patient's parietal bone of head one side.Inlet hole 18 is communicated with intake channel 32, and outlet opening 19 is communicated with exit passageway 33.
Storage tank is from inlet hole 18 accommodating fluids, and through intake channel 32, column cavity 31 and exit passageway 33 fluid discharged outlet opening 19.
Therapeutic Method according to the 3rd embodiment of the present invention
When carrying out iridectomy by Ophthalmologic device for laser therapy 1, apply laser beam to lens 3, and lens 3 and recessed face side 7 are placed on the eyeball 2, lens make operator that laser beam is focused on iris.
Laser beam after the focusing increases luminous energy density, thereby iris is bored a hole.When lens 3 apply laser beam, by inlet hole 18 accommodating fluid (for example cooled water) off and on.Lens 3 enter eyeball 2 with the laser beam guiding by fluid.Fluid flows and the heat of internal channel 30 is taken away with cooling lens 3 along internal channel 30.The lens 3 that are cooled are taken away the heat of eyeball 2, thereby cool off eyeball 2 when carrying out laser therapy.
The advantage of the 3rd embodiment of the present invention
Because internal channel 30 forms hollow in lens 3, operator make fluid can flow through the inside of internal channel 30 with cooling lens 3.Cooled lens 3 are taken away the heat of eyeball 2 with final cooling eyeball 2.
So just might cool off eyeball 2 and not need fluid directly to contact with eyeball 2.This makes operator can cool off eyeball 2 when carrying out laser therapy and can not be subjected to fluidic composition and mobile influence on the eyeball 2.
By at cooling eyeball 2 when eyeball 2 applies laser beam, might complication prevention, and the temperature rise of the eyeball 2 that this complication can cause by applying laser beam is caused.
The version of the 3rd embodiment of the present invention
In the version of the 3rd embodiment of the present invention shown in Figure 5, the downside of the projection 9 of lens 3 has protuberate 9a, and protuberate 9a is projected in the cavity 31, thereby forms biconvex lens.Toroidal cavity as shown in Figure 6 can be set, rather than column cavity 31.Two discous transparent components can be connected Face to face connecting the inboard formation in disk shaped part ground, ground cavity 31, rather than make the inside of lens 3 be vacuum to form cavity 31.
Notice that in the 3rd embodiment of the present invention, laser beam can permeate fluid, still, when internal channel 30 is set at outside the transmission path of laser beam, fluid also can the time saturating laser not.
The 4th embodiment of the present invention
[structure of the 4th embodiment]
Fig. 7 shows the 4th embodiment of the present invention, and this figure mainly shows the different structure with first embodiment of the present invention.Contact condition among the 4th embodiment of the present invention between eyeball 2 and the lens 3 is identical with contact situation among the 3rd embodiment of the present invention basically.
In the 4th embodiment of the present invention, be provided with outer passage 40, so that fluid is mobile along the excircle of lens 3.
Whole length along the excircle of lens 3 is provided with circumferential groove 41.Cover circumferential groove 41 by the inner surface by holder cylindrical shell 10, outer passage 40 is formed on the excircle of lens 3 liquid closedly.Holder cylindrical shell 10 is provided with inlet hole 18 and outlet opening 19.Inlet hole 18 can flow into fluid, and outlet opening 19 can discharge fluid
Therapeutic Method according to the 4th embodiment of the present invention
Along with lens 3 are placed on the eyeball 2, laser beam is released on the lens 3.During discharging laser beam, storage tank like this, makes fluid flow along outer passage 40, thereby the heat of lens 3 is taken away Ophthalmologic device for laser therapy 1 cooling lens 3 by inlet hole 18 passage 40 accommodating fluids laterally off and on.During discharging laser beam, the lens 3 that are cooled are taken away the heat of eyeball 2, thereby cool off eyeball 2 when carrying out laser therapy.
The 4th advantage that embodiment brought of the present invention
In the Ophthalmologic device for laser therapy 1 according to the 4th embodiment of the present invention, outer passage 40 makes operator can make fluid flow needn't use lens 3 to be the high-tech of vacuum with cooling lens 3.
By at cooling eyeball 2 when eyeball 2 applies laser beam, might complication prevention, and the temperature rise of the eyeball 2 that this complication can cause by applying laser beam is caused.When adopting high-intensity laser beam to strengthen therapeutic effect, fluid stream makes operator can cool off lens 3, thus complication prevention.
As the version of the 4th embodiment of the present invention, can on the inner surface of holder cylindrical shell 10, along the circumferential direction form recessed groove, with qualification outer passage 40, rather than on the periphery of lens 3, form circumferential groove 41.Perhaps, ring pipe can be set for fluid this ring pipe of flowing through, thereby form outer passage 40, rather than utilize holder cylindrical shell 10.As an alternative, can add separated components around holder cylindrical shell 10, thereby outer passage 40 is set on the outer surface of holder cylindrical shell 10.
The 5th embodiment of the present invention
Fig. 8 shows the 5th embodiment of the present invention, and wherein Ophthalmologic device for laser therapy 1 is applied on the eyeball 2.In Fig. 8 of the sketch map of Ophthalmologic device for laser therapy 1, light transparent member is a cryogen vessel 51, forms flow channel 50 in the inside of this container.Cryogen vessel 51 is between lens 3 and eyeball 2.Lens 3 are as focusing block, and these parts are refracted into the laser beam that is mapped on the cryogen vessel 51 so that laser beam can focus on any one position of eyeball 2.
The 6th embodiment of the present invention
The structure of the 6th embodiment
Fig. 9 shows the 6th embodiment of the present invention, and wherein Ophthalmologic device for laser therapy 1 is applied on the eyeball 2.In Fig. 9, the straight line of the above-below direction from the top to the bottom is consistent with the direction of gravity, and the left side of this figure is the position at laser oscillator place.The right side of figure is the position at eyeball place, and upside is parietal bone of head one side, and downside is upper jaw bone one side.
In the 6th embodiment of the present invention, Ophthalmologic device for laser therapy 1 has lens 3, lens fixture 4 and transparent separation wall 5, and partition wall 5 cooperates the formation seal cavity with lens 3.Ophthalmologic device for laser therapy 1 has the cornea contact wall 61 between lens 3 and the eyeball 2, so that flow channel 60 to be set.Cornea contact wall 61 serves as light transparent member, and it contacts with eyeball 2, laser beam is directed to eyeball 2.Lens 3 are as the transparent body, and it forms flow channel 60 between lens 3 and cornea contact wall 61.Lens 3 still are focusing block, and it is refracted into the laser beam that is mapped on the cornea contact wall 61, so that laser beam can focus on the optional position of eyeball 2.
The lens fixture 4 of the 6th embodiment of the present invention is similar with first embodiment of the present invention.On the inner surface of holder cylindrical shell 10, be set with lens 3.The fluid passage forms part 62 and is set at mid portion between lens 3 and the cornea contact wall 61 as a distance piece and sentences and form flow channel 60, this mid portion from eyeball 2 than near from recessed face side 7.
For to flow channel 60 accommodating fluids, the fluid passage forms part 62 and is formed with inlet hole 18 in the jawbone side, and overhead the bone side is formed with outlet opening 19.
Ophthalmologic device for laser therapy 1 also has the control assembly of fluid supply part, fluid cooling-part and control fluid supply part and fluid cooling-part.The fluid cooling-part is a refrigerating plant 65, and this device is placed in the storage tank 20 to reduce the fluid temperature (F.T.) in the storage tank 20.
Fluid supply apparatus is that pump 21 is to pass through inlet hole 18 to flow channel 60 accommodating fluids from storage tank 20.Storage tank 20 is connected with inlet hole 18.Control assembly adopts computer 22 these well-known devices to come control pump 21 and refrigerating plant 65.
By regulating the pumping velocity of pump 21, can control the Fluid Volume of the flow channel 60 of flowing through, thereby regulate the internal pressure of flow channel 60.Because cornea contact wall 61 is elastic films, the internal pressure of flow channel 60 makes cornea contact wall 61 with certain curvature distortion.Constant flow channel 60 internal pressures make cornea contact wall 61 keep predetermined curvature.Relation between the internal pressure by calculating flow channel 60 and the curvature of cornea contact wall 61, pumping velocity that just might control pump 21 to be changing internal pressure, is adjusted to the curvature that the curvature with eyeball 2 adapts thereby cornea is contacted wall 61.To control by 65 refrigerative fluid temperature (F.T.)s of refrigerating plant as target temperature from the fluid temperature (F.T.) that outlet opening 19 is discharged.
Therapeutic Method according to a sixth embodiment of the present
When carrying out laser therapy, laser beam is applied on the lens 3, cornea contact wall 61 is placed on the eyeball 2 by a kind of ophthalmology lubricant and contacts with eyeball 2.In the process that discharges laser beam, pump 21 is off and on to flow channel 60 accommodating fluids, thereby the moving passage 60 of fluid longshore current flows through cornea contact wall 61 so that the heat of eyeball 2 is taken away.Control assembly is regulated the pumping velocity of pump 21, thus the internal pressure that flow channel 60 keeps the curvature of it and eyeball 2 to adapt.
The fluid temperature (F.T.) that to discharge from outlet opening 19 is as target temperature, fluidic temperature in the control refrigerating plant 65, thereby when carrying out laser therapy cooling eyeball 2.
The 6th advantage that embodiment brought of the present invention
Flow because of Ophthalmologic device for laser therapy 1 makes the moving passage 60 of fluid longshore current, fluid is taken away the heat of eyeball 2 by cornea contact wall 61, thus cooling eyeball 2 and fluid needn't contact eyeball 2.Cooling eyeball 2 when this makes operator carry out laser therapy, and needn't consider fluid composition and mobile influence to eyeball 2.
Control assembly is regulated the pumping velocity of pump 21, thereby makes flow channel 60 keep it to make cornea contact wall 61 present the internal pressure of the curvature that the curvature with eyeball 2 adapts.
This can contact cornea on the outer surface that wall 61 cosily is engaged in eyeball 2 operator and can not produce unsuitable burden on eyeball 2.
The 7th embodiment of the present invention
Figure 10 shows the 7th embodiment of the present invention, and wherein formation part 62 in fluid passage is isolating.Cornea contact wall 61 is fixed in the opening that the fluid passage forms the close eyeball 2 of part 62.The fluid passage forms part 62 and is removably mounted on lens 3 and the lens fixture 4.
Because the fluid passage forms part 62 and removably arranges, just might or after the use for several times abandon it after the fluid passage forms part 62 uses once, can guarantee maintenance good concerning medical apparatus and instruments, high-quality and sanitary condition thus.
Also might refrigerator be formed part 14 for different purposes is attached to current in the widely used existing eyeglass in ophthalmology laser treatment field.
The 8th embodiment of the present invention
The structure of the 8th embodiment
Figure 11 shows the 8th embodiment of the present invention, and wherein the contact situation between eyeball 2 and the lens 3 is roughly identical with contact situation described in the 3rd embodiment of the present invention (Fig. 4).
In the 8th embodiment of the present invention, Ophthalmologic device for laser therapy 1 has the lens fixture 4 of lens 3 and supporting lens 3.Be provided with partition wall 5, it forms seal cavity with lens 3.Lens 3 serve as light transparent member, and this light transparent member contacts with eyeball 2 laser beam is directed to eyeball 2.
Identical with the mode of the 3rd embodiment of the present invention, holder cylindrical shell 10 limits lens fixture 4 and does not form part 14 corresponding parts with refrigerator, and refrigerator forms part 14 than recessed face side 7 more close eyeballs 2.The recessed face side 7 of lens 3 contacts with eyeball 2.
The peripheral openings end of holder cylindrical shell 10 forms bonding part 15 in eyeball 2 one sides.Bonding part 15 constitutes the recessed structure consistent with the outer surface of eyeball 2 with its outer surface and the shape of recessed face side 7.
In Ophthalmologic device for laser therapy 1, be provided with the amber ear card bonder 80 that is attached to lens 3 according to the 8th embodiment of the present invention.Controller 81 is connected in amber ear card bonder 80.81 places are provided with heat sensor 82 at controller, and this heat sensor 82 is attached to lens 3.Amber ear card bonder 80 is semiconductor devices, and when amber ear card bonder 80 is logical when going up unidirectional current, it makes operator can cool off, heat and controls lens 3 from the heat aspect.By power supply 83 and to 80 energisings of amber ear card bonder the time, amber ear card bonder 80 produces heat in both sides poor.Amber ear card bonder 80 absorbs heat at low temperature side (refrigeration side 80a), and produces heat at high temperature side (heat radiation side 80b).Low temperature side is shifted heat onto high temperature side.
The outer circumferential side of lens 3 has two females 84, and amber ear card bonder 80 is placed in this female.Amber ear card bonder 80 makes refrigeration side 80a towards lens 3, and makes the inner surface of heat radiation side 80b towards holder cylindrical shell 10.
Control assembly is the switch switching that target temperature is controlled galvanic polarity and intensity and amber ear card bonder 80 with heat sensor 82 detected temperature.This makes operator can control the caloric receptivity of amber ear card bonder 80, thus the temperature of regulating lens 3.
Therapeutic Method according to the 8th embodiment of the present invention
Because of lens 3 are placed on the eyeball 2, laser beam is released on the lens 3.In the process that discharges laser beam, 80 energisings of amber ear card bonder, thus refrigeration side 80a absorbs heat with cooling lens 3 from lens 3.The lens 3 that are cooled are taken away the heat of eyeball 2 in the process that discharges laser beam, thereby cool off eyeball 2 when carrying out laser therapy.
The 8th advantage that embodiment produced of the present invention
In the Ophthalmologic device for laser therapy 1 according to the 8th embodiment of the present invention, amber ear card bonder 80 makes operator cool off lens 3 with the refrigeration side 80a that places in the face of lens 3.Eyeball 2 loses heat by the lens of placing contiguously with eyeball 23.
Because in cooling eyeball 2 when eyeball 2 applies laser beam, the complication that can prevent eyeball 2 temperature that cause by applying laser beam to raise and caused.When adopting when strengthening laser beam to heavens and increasing therapeutic effect, refrigeration side 80a makes operator can cool off lens 3, thus complication prevention.
Because amber ear card bonder 80 as refrigerating plant, might be guaranteed the quick response to variations in temperature, thereby is immediately cooled off lens 3.Use fluidic situation to compare during with cooling lens 3, amber ear card bonder 80 makes lens 3 avoid vibrations when carrying out laser therapy.80 pairs of variations in temperature reactions of amber ear card bonder are quick, thereby can control temperature with high accuracy.
In the 8th embodiment in the present invention ground, the shape of holder cylindrical shell 10 can be a fin shape structure, to disperse the heat that transmits from the heat radiation side 80b of amber ear card bonder 80.Form can form a plurality of air flow through holes to disperse heat on holder cylindrical shell 10 as an alternative.The switch switching device shifter can manually be controlled and needn't use heat sensor 82 and controller 81.As the version of the 8th embodiment of the present invention, amber ear card bonder 80 can be placed on the outside of holder cylindrical shell 10, refrigeration side 80a is in the face of the outer surface of holder cylindrical shell 10.
The 9th embodiment of the present invention
The structure of the 9th embodiment
Figure 12 shows the 9th embodiment of the present invention, wherein the contact situation between eyeball 2 and the lens 3 with described in the 3rd embodiment of the present invention (Fig. 4) to contact situation roughly the same.Described herein mainly be with the 6th embodiment of the present invention in different parts.
In the 9th embodiment of the present invention, Ophthalmologic device for laser therapy 1 has lens 3, and the inside of lens 3 is hollow, to form storage pond 90 on lens 3.Periphery at lens 3 has side opening 91, supplies fluid to Chu Chi 90 by this opening.By side opening 91 being clogged to form seal cavity in storage pond 90 fluid is retained among the Chu Chi 90 with rubber closure 92.Amber ear card bonder 80 is installed on the lens 3, and refrigeration side 80a contacts with fluid with the fluid in the cooling storage pond 90.Amber ear card bonder 80 is placed on three positions, and these three positions are along circle spacings 90 degree, shown in Figure 12 (b).
Therapeutic Method according to the 9th embodiment of the present invention
Because of lens 3 are placed on the eyeball 2, laser beam is discharged on the lens 3.In discharging the process of laser beam, 80 energisings of amber ear card bonder, thereby refrigeration side 80a from the absorption of fluids heat with cooling fluid.The fluid that is cooled takes away fluidic heat with cooling lens 3.The lens 3 that are cooled are taken away the heat of eyeball 2 in the process that discharges laser beam, thereby cool off eyeball 2 when carrying out laser therapy.When to storage pond 90 accommodating fluids, rubber closure 92 can be pulled out, perhaps can use entry needle to pierce through rubber closure 92 and enter among the Chu Chi 90.
The 9th advantage that embodiment produced of the present invention
In the Ophthalmologic device for laser therapy 1 according to the 9th embodiment of the present invention, amber ear card bonder 80 makes operator can cool off the fluid that stores up in the pond 90, thereby takes away the heat of lens 3.That is to say that eyeball 2 loses heat by the lens that are cooled 3 that contact with fluid.
Because in cooling eyeball 2 when eyeball 2 applies laser beam, the complication that can prevent eyeball 2 temperature that cause by applying laser beam to raise and caused.When adopting the enhancing laser beam to increase therapeutic effect, refrigeration side 80a makes operator can cool off lens 3, thus complication prevention.
By being arranged on the storage pond 90 of lens 3 inside, and by amber ear card bonder 8C at inner colded fluid, this fluid makes operator can cool off lens 3 effectively.
Here it is fluid is in lens 3 rather than the structure that is cooled in the outside of Ophthalmologic device for laser therapy 1.Like this, by before using Ophthalmologic device for laser therapy 1, finishing the preparation of treatment to storing up pond 90 accommodating fluids and the switch switching device shifter being switched on.This simple preparation makes operator can easily use Ophthalmologic device for laser therapy 1.
As the side 80a that will freeze to amber ear card bonder 80 be placed to store up pond 90 in the alternative that contacts of fluid, as long as amber ear card bonder 80 can be by refrigeration side 80a cooling fluid, refrigeration side 80a also can be placed on the outside of lens 3 for instance, and needn't make the direct contacting with fluid of refrigeration side 80a.
Version
As the version of the 9th embodiment of the present invention, as the alternative of the control assembly that use is comprised pump 21 and refrigerator device 65 (computer 22), can manual adjustments pumping velocity and fluid temperature (F.T.).Can valve be set at (or between outlet opening 19 and pump 21) between storage tank 20 and the inlet hole 18, thereby come the regulated fluid flow by the aperture of by-pass valve control.
Fluid source can be the IV bag that comprises ice and liquid.As the fluid supply part, can use siphon to cooling chamber 13, fluid passage 30, outer passage 40 and flow channel 50,60 accommodating fluids.
As to opening wide the alternative that refrigerator forms the outer circumference end of part 14 fully to eyeball 2 among first and second embodiment of the present invention, the outer circumference end that refrigerator forms part 14 can be that part is opened wide.Lens 3 (the 3rd embodiment), cryogen vessel 51 (the 5th embodiment) contact wall 61 (the 6th embodiment) with cornea shape is a closure surfaces, still, these parts also can be local perforations or directly be communicated with eyeball 2 fluids.
To the 7th embodiment, amber ear card bonder can be combined in the Ophthalmologic device for laser therapy 1 from first.
Even light transparent member does not have refracting characteristic collecting laser beam, light transparent member also need be when contact with eyeball 2 the energy printing opacity.Because on laser oscillator can gather laser beam a bit, so light transparent member must can not collected laser beam.As focusing block, when light transparent member does not have refracting characteristic, can on the laser light incident side of light transparent member, specular-reflection unit be set.Specular-reflection unit makes laser light reflected bundle focusing on any arbitrarily at eyeball 2.
Industrial applicibility
Ophthalmologic device for laser therapy 1 can be used for carrying out ophthalmology laser treatment, in this treatment with laser beam Be applied on the eyeball to therapeutic.
Claims (16)
1. Ophthalmologic device for laser therapy comprises:
Light transparent member, described light transparent member is directed to eyeball with laser beam; And
Distance piece is to keep predetermined space between described light transparent member and described eyeball;
Wherein, by being introduced, a kind of fluid described fluid is directly contacted with described eyeball cool off eyeball.
2. Ophthalmologic device for laser therapy as claimed in claim 1 is characterized in that described distance piece is removably mounted on the described light transparent member.
3. Ophthalmologic device for laser therapy comprises:
Light transparent member, described light transparent member contacts with eyeball and laser beam is directed to described eyeball; And
This fluid passage is flowed through to cool off described eyeball in fluid passage, a kind of fluid;
Wherein, the position of described fluid passage is away from described eyeball.
4. Ophthalmologic device for laser therapy as claimed in claim 3 is characterized in that described fluid passage is arranged in described light transparent member.
5. as each described Ophthalmologic device for laser therapy of claim 1-4, it is characterized in that, transparent partition wall is set with in described light transparent member be used for discharging between the laser oscillator of described laser beam and form the space.
6. Ophthalmologic device for laser therapy as claimed in claim 3 is characterized in that, in a side of described light transparent member the transparent body is set, and a described side is relative with described eyeball, and distance piece is set to form the space between the described light transparent member and the described transparent body;
Wherein, described fluid passage is arranged between the described light transparent member and the described transparent body.
7. Ophthalmologic device for laser therapy as claimed in claim 6 is characterized in that described light transparent member is made by the elastomeric material of flexibility.
8. Ophthalmologic device for laser therapy as claimed in claim 7 is characterized in that, the fluid supply part is set supplies described fluid, and control device is set functionally controls described fluid supply part;
Wherein, described control assembly is regulated described fluidic flow, thereby the structure of described light transparent member is conformed to the structure of described eyeball.
9. as each described Ophthalmologic device for laser therapy among the claim 6-8, it is characterized in that, transparent separation wall is set with at the described transparent body be used for discharging between the laser oscillator of described laser beam and form the space.
10. as each described Ophthalmologic device for laser therapy among the claim 6-9, it is characterized in that described distance piece and described light transparent member are removably mounted on the described transparent body.
11., it is characterized in that, the fluid cooling-part is set cooling off described fluid, and control assembly is set controls described fluid cooling-part as each described Ophthalmologic device for laser therapy among the claim 1-10;
Wherein, the work of described fluid cooling-part conforms to target temperature to regulate described fluidic temperature.
12. an Ophthalmologic device for laser therapy comprises:
Light transparent member, described light transparent member is to contact with eyeball and laser beam is directed to described eyeball; And
Amber ear card bonder, described amber ear card bonder is installed on the described light transparent member;
Wherein, described light transparent member is finally cooled off described eyeball by described amber ear card bonder cooling.
13. Ophthalmologic device for laser therapy as claimed in claim 12 is characterized in that, the storage pond is set holding fluid in described light transparent member, and the work of described amber ear card bonder is to cool off described light transparent member and to be contained in described fluid in the described storage pond.
14. as claim 12 or 13 described Ophthalmologic device for laser therapy, it is characterized in that, transparent separation wall be set with in described light transparent member be used for discharging between the laser oscillator of described laser beam and form the space.
15., it is characterized in that described light transparent member is that lenticular unit focuses on described laser beam to collect described laser beam on described eyeball as each described Ophthalmologic device for laser therapy among the claim 1-14.
16. as each described Ophthalmologic device for laser therapy among the claim 1-15, it is characterized in that, focusing block is set on the optional position of described eyeball laser beam is focused on by reflecting or being reflected into the described laser beam that is mapped on the described light transparent member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP137416/2005 | 2005-05-10 | ||
| JP2005137416 | 2005-05-10 | ||
| JP358812/2005 | 2005-12-13 |
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| CN101175459A true CN101175459A (en) | 2008-05-07 |
| CN100556384C CN100556384C (en) | 2009-11-04 |
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| CNB2006800162546A Expired - Fee Related CN100556384C (en) | 2005-05-10 | 2006-05-10 | A kind of Ophthalmologic device for laser therapy |
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| CN (1) | CN100556384C (en) |
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