CN101683549A - Ultrasonic generator and ultrasonic curing system containing same - Google Patents
Ultrasonic generator and ultrasonic curing system containing same Download PDFInfo
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- CN101683549A CN101683549A CN200810168844A CN200810168844A CN101683549A CN 101683549 A CN101683549 A CN 101683549A CN 200810168844 A CN200810168844 A CN 200810168844A CN 200810168844 A CN200810168844 A CN 200810168844A CN 101683549 A CN101683549 A CN 101683549A
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Abstract
The invention discloses an ultrasonic generator comprising an ultrasonic wave source, a coupler and a focus regulating unit, wherein the coupler is filled with a first coupling fluid; the ultrasonic wave source is arranged in the coupler; the focus regulating unit is arranged in the coupler; and the focus regulating unit can regulate the position of the focusing point of ultrasonic emitted by theultrasonic wave source. The invention also discloses an ultrasonic curing system containing the ultrasonic generator. The invention has simple structure and can regulate position of focusing point ofthe ultrasonic wave source flexibly.
Description
Technical field
The invention belongs to the ultrasonic therapeutic field, be specifically related to a kind of ultrasonic generator and contain the supersonic therapeutic system of above-mentioned ultrasonic generator.
Background technology
But the ultrasonic therapeutic technology is to utilize physical features such as tissue penetration that ultrasound wave has and focusing, external low-yield ultrasound wave is focused on target area in the body, effects such as high temperature by the generation of focus place high-strength ultrasonic, target area inner tissue is damaged fully, do not damage outside the target area and organize, realize the purpose of noinvasive excision target area tissue, such as tumor resection.
This technology is in existing application, and it is exactly the adjusting of the ultrasound wave depth of focus that a very big problem is arranged.In the treatment of reality, the position, target area that need treat is on the position of different depth often, though can realize focus ultrasonic on the diverse location by changing different transducers, this is suitable trouble for therapeutic process.
In the patent No. is in the Chinese patent of ZL02222881.0, disclosed a kind of varifocal ultrasonic therapeutic focusing arrangement, this device is that a plurality of transducer units are fixed on the rosette, its spread geometry is three donuts, the focused radius of transducer unit is different with self natural frequency on the different annular, obtains the focus of three diverse locations thus.In this device, the position of each transducer unit is to have set and changeless, therefore in use can only adjust according to predefined focal position, and in the time only need utilizing one group of transducer unit to focus on a position, the transducer unit of other groups just by idle, can't play a role.
In the patent No. is in the United States Patent (USP) of US4938217, has disclosed a kind of supersonic therapeutic system, and it uses the phased array transducers unit, by changing the Phase delay of each transducer unit signal of telecommunication, realizes the different depths of focus.This device is that the Chinese patent of ZL02222881.0 is more flexible to the control of the depth of focus than the above-mentioned patent No., but this device designs and operates all more complicated, and be the adjusting of the depth of focus of carrying out at a plurality of transducer units, can not adopt this mode to regulate for the ultrasound source that adopts single transducer.
Summary of the invention
Technical problem to be solved by this invention is at apparatus for ultrasonic therapeutic treatment above shortcomings in the prior art, provide a kind of simple in structure, can flexible the ultrasonic source focus point the position ultrasonic generator and contain the supersonic therapeutic system of this ultrasonic generator.The technical scheme that solution the technology of the present invention problem is adopted is that this ultrasonic generator comprises ultrasonic source and coupling device, be filled with first coupled fluid in the described coupling device, ultrasonic source is located in the described coupling device, wherein, also include the focus adjustment unit on ultrasonic wave propagation path, described focus adjustment unit places in the coupling device, and focus adjustment unit can be regulated the position of the focus point of ultrasonic source institute ultrasonic waves transmitted.
The ultrasound wave that ultrasonic generator of the present invention sent is in the process of propagating, by this external device (ED) that is independent of the ultrasonic source setting of regulon of focusing to change hyperacoustic direction of propagation, thereby make the ultrasound wave can be, to regulate the degree of depth of focus ultrasonic point in the enterprising line convergence in different positions.Adopt the focus adjustment unit of this mode need not change the character of ultrasonic source self, only simply regulate, just can reach the purpose that changes the ultrasonic source focus point degree of depth by the focusing regulon.Preferred focus adjustment unit can adopt following several form:
Described focus adjustment unit can comprise one or more liquid capsules, each liquid capsule all is positioned at coupling device, on ultrasonic wave propagation path, set gradually or comprise successively, all be filled with coupled fluid in described each liquid capsule, coupled fluid in first coupled fluid and described each liquid capsule is isolated mutually and respectively have the different velocities of sound, and ultrasonic source institute ultrasonic waves transmitted is successively through focusing on behind the coupled fluid in first coupled fluid and above-mentioned each liquid capsule.
Because each liquid capsule is located at respectively on the ultrasound emission path, the coupled fluid that the different velocities of sound are arranged in each liquid capsule, on hyperacoustic propagation path, just applied two or more different entrant sound medium like this, because the speed difference that ultrasound wave is propagated in different entrant sound media, certain refraction can take place in it in the process that is propagated into another kind of medium by a kind of medium, by selecting the combination of different two kinds or above entrant sound media for use, just can realize ultransonic repeatedly refraction, control and change the depth of focus of ultrasonic source with this.
Preferably, be connected with first feed tube and first drain pipe on the described coupling device, also be connected with corresponding feed tube and drain pipe respectively on above-mentioned one or more liquid capsules.Coupled fluid constantly enters the liquid capsule from each feed tube, again from each drain pipe effluent capsule, being provided with of feed tube and drain pipe can guarantee flowing of coupled fluid like this, thereby the heat that ultrasonic source produces is in the course of the work taken away, to avoid damaging ultrasonic source.
When adopting the focus adjustment unit of above-mentioned form, ultrasonic source can adopt spherical shell formula ultrasonic source, the also ultrasonic source that can adopt plane formula ultrasonic source and acoustic lens to be combined to form, wherein acoustic lens is close on the surface of emission of plane formula ultrasonic source.
Preferably, described ultrasonic source can adopt a plurality of, and a plurality of ultrasonic sources are installed in respectively on the base, and base adopts and can make a plurality of ultrasonic source institute ultrasonic waves transmitted that is mounted thereon converge at the shape of a bit.
Another kind is, focus adjustment unit can comprise one or more acoustic lens that can change the transonic direction of being located on the ultrasonic wave propagation path, if adopt a plurality of acoustic lens, each acoustic lens is located on the ultrasonic wave propagation path successively.
Preferably, also comprise the telecontrol equipment that links to each other with acoustic lens on the ultrasonic wave propagation path in the described focus adjustment unit, telecontrol equipment can drive acoustic lens and move between ultrasonic source and focus ultrasonic point.Like this, behind the position change of acoustic lens, hyperacoustic propagation path changes thereupon, and the position of hyperacoustic focus point also changes.
Further preferably, described telecontrol equipment can drive acoustic lens and enter or withdraw from ultrasonic wave propagation path, is detachable the connection between telecontrol equipment and the acoustic lens, in time changes different acoustic lens with convenient.The doctor just can use different acoustic lens instead, to realize the focusing on the different depth more easily at any time according to the treatment needs like this.
When adopting above-mentioned focus adjustment unit, ultrasonic source can adopt spherical shell formula ultrasonic source or plane formula ultrasonic source.Preferably, described ultrasonic source adopts a plurality of, and a plurality of ultrasonic sources are installed in respectively on the base, and the shape of base can make a plurality of ultrasonic source institute ultrasonic waves transmitted that is mounted thereon to focus on a bit.
The third is, described focus adjustment unit can comprise the sound passing membrane of being made by flexible acoustic window material that seals on the installed surface that a flexible material makes, the described installed surface, ultrasonic source is located on the described installed surface, sound passing membrane is located on the ultrasonic wave propagation path, be filled with coupled fluid in the closed space that described installed surface and described sound passing membrane constituted, the flexibility of sound passing membrane is less than the flexibility of described installed surface.This installed surface can power use generation deformation, position and direction that the deformation of installed surface drives ultrasonic source change, and therefore cause the depth of focus of ultrasonic source to change.
Preferably, be connected with first feed tube and first drain pipe on the described coupling device, the seam of installed surface and sound passing membrane is connected with second feed tube and second drain pipe respectively.When in the closed space that installed surface and sound passing membrane constituted, injecting or discharge coupled fluid, stressed the deforming of this installed surface and drop or rise, thus change the depth of focus of ultrasonic source.
Further preferably, also be respectively equipped with flow regulator on described second feed tube and described second drain pipe, be used to control the flow that enters the coupled fluid in the closed space that installed surface and sound passing membrane constitute.
When adopting the focus adjustment unit of the above-mentioned type, described ultrasonic source adopts spherical shell formula ultrasonic source, the ultrasonic source that perhaps adopts plane formula ultrasonic source and acoustic lens to be combined to form, wherein acoustic lens is close on the surface of emission of plane formula ultrasonic source.
Preferred described ultrasonic source can adopt a plurality of, and a plurality of ultrasonic sources are installed in respectively on the described installed surface.
The 4th kind is, described ultrasonic source is made by flexible material, described focus adjustment unit can comprise the sound passing membrane of being made by flexible acoustic window material that is sealed on the flexible ultrasonic wave-wave source, sound passing membrane is located on the ultrasonic wave propagation path, be filled with coupled fluid in the closed space that described flexible ultrasonic wave-wave source and described sound passing membrane are constituted, the flexibility of described sound passing membrane is less than the flexibility of described ultrasonic source.The ultrasonic source that this flexible material is made can power use generation deformation, and the deformation in flexible ultrasonic wave-wave source can cause self depth of focus to change.
Preferably, be connected with first feed tube and first drain pipe on the described coupling device, flexible ultrasonic wave-wave source and sound passing membrane seam are connected with second feed tube and second drain pipe respectively.When in the closed space that this flexible ultrasonic wave-wave source and sound passing membrane are constituted, injecting or discharging coupled fluid, this stressed deforming in flexible ultrasonic wave-wave source and drop or rise, thus cause self depth of focus to change.
Further preferably, be respectively equipped with flow regulator on described second feed tube and described second drain pipe, be used to control the flow that enters the coupled fluid in the closed space that flexible ultrasonic wave-wave source and sound passing membrane constituted.
Among the present invention, also above-mentioned four types focus adjustment unit can be used in combination mutually, thereby form a kind of new focus adjustment unit.
A kind of supersonic therapeutic system, ultrasonic generator wherein adopts the ultrasonic generator of the above-mentioned type.
The present invention carries out simple mechanical adjustment by the outside at ultrasonic source, utilize the physical features of ultrasonic propagation to change the depth of focus of ultrasonic source, and do not influence or change the character and the structure of ultrasonic sound source self, and it is simple in structure, can be effectively, free, regulate the depth of focus of one or more ultrasonic sound sources easily.Be specially adapted to adopt the ultrasound source of single transducer.
Description of drawings
Fig. 1 is the structure principle chart that ultrasonic generator focuses in the prior art
Fig. 2 is the structural representation (its focus point position is far away than the focal position among Fig. 1) of the embodiment of the invention 1
Fig. 3 is the structural representation (its focus point position is nearer than the focal position among Fig. 1) of the embodiment of the invention 1
Fig. 4 is the structural representation of the embodiment of the invention 2
Fig. 5 is the structural representation of the embodiment of the invention 3
Fig. 6 is the structural representation (employing has the acoustic lens of converging action) of the embodiment of the invention 4
Fig. 7 is the structural representation (employing has the acoustic lens of disperse function) of the embodiment of the invention 4
Fig. 8 is the structural representation of the embodiment of the invention 5
Fig. 9 is the structural representation of the embodiment of the invention 6
Figure 10 is the structural representation of the embodiment of the invention 7
Figure 11 is the vertical view of Figure 10
Among the figure: 1-(former focus) position 2-(the adjusting back focus) position 3-ultrasonic source 31-spherical shell type ultrasonic source 32-plane formula ultrasonic source 4-acoustic lens 41-acoustic lens 42-(the rear acoustic lens of adjusting) position 51-the first feed tube 52-the second feed tube 61-the first drain pipe 62-the second drain pipe 7-sound passing membrane 71-coupling device 72-liquid capsule 73-sound passing membrane 74-(after the adjusting) sound passing membrane position 8-coupled fluid 81-the first coupled fluid 82-the second coupled fluid 9-mechanical movement means 10-base 11-installed surface 12-(the rear installed surface of adjusting) position 13-flexible ultrasonic wave-wave source 14-(the rear flexible ultrasonic wave-wave source of adjusting) position 15-valve
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
Among the present invention, ultrasonic generator comprises ultrasonic source and coupling device, be filled with first coupled fluid in the coupling device, ultrasonic source is located in the described coupling device, also include the focus adjustment unit on ultrasonic wave propagation path, described focus adjustment unit is located in the coupling device, and focus adjustment unit can be regulated the position of the focus point of ultrasonic source institute ultrasonic waves transmitted.Described ultrasonic source itself is launched be concentration ultrasonic or with other acoustic element combination after can produce the effect that focuses on, perhaps pass through the effect that can produce focusing after the focus adjustment unit.
Following embodiment is indefiniteness embodiment of the present invention.
Embodiment 1:
Figure 1 shows that the structure principle chart that existing ultrasonic generator focuses on, Fig. 2 and Fig. 3 are the structural representation of the embodiment of the invention 1.
Shown in Fig. 2,3, in the present embodiment, what ultrasonic source used is spherical shell formula ultrasonic source 31.Described spherical shell formula ultrasonic source 31 places in the coupling device 71, and the inside of coupling device 71 is filled with first coupled fluid 81.
Described focus adjustment unit is the liquid capsule of being located on the ultrasonic wave propagation path 72, and liquid capsule 72 is made by acoustic window material, and it is arranged in first coupled fluid 81 of coupling device 71, and liquid capsule 72 inside are filled with second coupled fluid 82.First coupled fluid 81 of coupling device 71 inside and second coupled fluid 82 of liquid capsule 72 inside are isolated mutually.
On the outer wall of coupling device 71, be provided with first feed tube 51 and first drain pipe 61, on the liquid cyst wall of liquid capsule 72, be provided with second feed tube 52 and second drain pipe 62, be provided with like this and can guarantee first coupled fluid 81 constantly flowing in coupling device 71, second coupled fluid 82 constantly flowing in liquid capsule 72, the heat that ultrasonic source can be produced in the course of the work that flows of coupled fluid is taken away, to avoid damaging ultrasonic source.
First coupled fluid 81 adopts the coupled fluid medium with different velocities of sound with second coupled fluid 82, in the present embodiment, first coupled fluid 81 adopts different normal saline of acoustic impedance value and de aerated water (under 37 ℃ of environment) respectively with second coupled fluid 82, then makes the focal length elongated (as shown in Figure 2) when only using normal saline of ultrasonic source; When first coupled fluid 81 and second coupled fluid 82 adopt different de aerated water of acoustic impedance value and normal saline (under 37 ℃ of environment) respectively, then make the focal length of ultrasonic source shorten (as shown in Figure 3) when only using de aerated water.During use, because the couplant of first coupled fluid 81 and the different velocities of sound of second coupled fluid, 82 employings, ultrasound wave is when first coupled fluid 81 and 82 propagation of second coupled fluid, can reflect, the direction of its former propagation is changed, but ultrasound wave still can converge at a bit after by liquid capsule 72, just change has taken place in the position of ultrasound wave focus point, focus point is focused on by 2 places, position that the position among original Fig. 11 becomes in Fig. 2 or Fig. 3, the particular location after its focus point changes can according in the ultrasonic propagation process the propagation distance and the acoustic impedance thereof of various couplants of process calculate.
The difference of Fig. 2 and Fig. 3 is that second coupled fluid 82 in the liquid capsule 72 is inequality, be respectively to utilize two kinds of coupled fluids to change hyperacoustic propagation path, thereby make hyperacoustic focal position become near or become far away with respect to the focal position 1 of Fig. 1 (when only using a kind of coupled fluid) with different velocities of sound.So just make and can realize the change of the ultrasound wave focus point degree of depth by selecting two kinds of different coupled fluids simply for use.
Similarly, the focus adjustment unit in the present embodiment can also adopt a plurality of liquid capsules of being located on the ultrasonic wave propagation path, and each liquid capsule all is positioned at coupling device, sets gradually on ultrasonic wave propagation path, also can comprise successively.All be filled with coupled fluid in described each liquid capsule, first coupled fluid 81 is isolated mutually with the coupled fluid in described each liquid capsule and respectively have the different velocities of sound, and ultrasonic source institute ultrasonic waves transmitted is successively through focusing on behind the coupled fluid in first coupled fluid 81 and above-mentioned each liquid capsule again.So just can realize repeatedly changing the transonic path, thereby reach the purpose that changes the accumulation degree of depth.
Embodiment 2:
Fig. 4 is the structural representation of the embodiment of the invention 2.
As shown in Figure 4, what ultrasonic source used in the present embodiment is the combination of plane formula ultrasonic source 32 and acoustic lens 4, acoustic lens 4 is close on the surface of emission of the ultrasonic sound source 32 of plane formula, so that the ultrasound wave that is sent by plane formula ultrasonic source 32 can be realized focusing on.
Compare with embodiment 1, present embodiment is except the combination that the spherical shell formula ultrasonic source 31 among the embodiment 1 is changed into plane formula ultrasonic source 32 and acoustic lens 4, and remainder is identical with embodiment 1.
Embodiment 3:
Fig. 5 is the structural representation of the embodiment of the invention 3.
As shown in Figure 5, present embodiment has used a plurality of ultrasonic sources 3, and ultrasonic source 3 can use spherical shell formula ultrasonic source, also can use the combination of plane formula ultrasonic source and acoustic lens to realize.All ultrasonic sources 3 all are installed on the base 10, and the shape of base 10 can be so that 3 ultrasonic waves transmitted of a plurality of ultrasonic sources that are mounted thereon can focus on a bit, and each ultrasonic source ultrasonic waves transmitted propagation path as shown in FIG..
Compare with embodiment 1, present embodiment adds the base 10 except the spherical shell formula ultrasonic source 31 among the embodiment 1 being changed into a plurality of ultrasonic sources 3, and remainder is identical with embodiment 1.
Embodiment 4:
As shown in Figure 6 and Figure 7, be the structural representation of the embodiment of the invention 4.
Shown in Fig. 6,7, in the present embodiment, ultrasonic source has used spherical shell formula ultrasonic source 31.Described focus adjustment unit is to be located at the acoustic lens 41 of the changed ultrasonic propagation direction on the ultrasonic wave propagation path.Fig. 6 and Fig. 7 are respectively the effect that changes focal depth when adopting two kinds of acoustic lens of different nature, and acoustic lens 4 can adopt the acoustic lens that plays converging action among Fig. 6, also can adopt the acoustic lens that plays disperse function among Fig. 7.
In the present embodiment, spherical shell formula ultrasonic source 31 and acoustic lens 41 all are located at coupling device 71 inside, are filled with first coupled fluid 81 in the described coupling device 71.On coupling device 71, also can be provided with first feed tube 51 and first drain pipe, 61 (not shown)s.
It should be noted that, there is not mechanical movement means 9 if in the present embodiment acoustic lens 41 only is set, also can only after using mechanical movement means 9, can make shifting gears of focus more more flexible so that the position of focus does not change before acoustic lens is set.
Similarly, the acoustic lens 41 in the present embodiment focus adjustment unit is not limited to one, can adopt a plurality of acoustic lens, and the type of each acoustic lens can be acoustic lens of different nature.If adopt a plurality of acoustic lens, each acoustic lens is located on the ultrasonic wave propagation path successively.
Preferably, mechanical movement means 9 in the present embodiment except have can the function of mobile acoustic lens, mechanical movement means 9 also can drive acoustic lens and enter or withdraw from ultrasonic wave propagation path, being connected to detachable connection the between mechanical movement means 9 and the acoustic lens 41, it just has the function of changing acoustic lens like this, can change the acoustic lens that is positioned on the transonic path, so that in the process of treatment, acoustic lens 41 is changed or moved, thereby realize focusing on the different depth more easily according to different treatment needs.
Embodiment 5:
Fig. 8 is the structural representation of the embodiment of the invention 5.
As shown in Figure 8, what ultrasonic source used in the present embodiment is plane formula ultrasonic source 32, and when adopting this wave source, acoustic lens must have focusing function, could make can be focused on a bit by plane formula ultrasonic source institute ultrasonic waves transmitted.
Compare with embodiment 4, present embodiment is except changing the spherical shell formula ultrasonic source 31 among the embodiment 4 into plane formula ultrasonic source 32, and remainder is identical with embodiment 4.
Similarly, the ultrasonic source in the present embodiment also can not only be selected one for use, can be the various combination of a plurality of spherical shell formula ultrasonic sources or plane formula ultrasonic source.
Embodiment 6:
Fig. 9 is the structural representation of the embodiment of the invention 6.
As shown in Figure 9, in the present embodiment, described ultrasonic source 13 is made (as adopting piezo-electricity composite material or piezoelectric membrane) by flexible material.Described focus adjustment unit comprises the sound passing membrane of being made by flexible acoustic window material 73 that is sealed on the flexible ultrasonic wave-wave source 13, sound passing membrane 73 is located on the ultrasonic wave propagation path, be filled with coupled fluid 8 in the closed space that described flexible ultrasonic wave-wave source 13 and described sound passing membrane 73 are constituted, the flexibility of described sound passing membrane 73 is less than the flexibility in described flexible ultrasonic wave-wave source 13.
The inside of coupling device 71 is full of coupled fluid 8, flexible ultrasonic wave-wave source 13 is positioned in the coupled fluid 8 in the coupling device 71, be connected with first feed tube 51 and first drain pipe 61 on the outer wall of coupling device 71, flexible ultrasonic wave-wave source 13 is connected with second feed tube 52 and second drain pipe 62 respectively with the seam of sound passing membrane 73.In the present embodiment, coupled fluid in the coupling device 71 and flexible ultrasonic wave-wave source 13 and the interior identical coupled fluid of coupled fluid employing of the closed space that described sound passing membrane 73 is constituted.
On second feed tube 52 and second drain pipe 62 flow regulator is housed respectively also, in the present embodiment.Flow regulator adopts valve 15.
When injecting coupled fluid 8 in 73 seal cavities that constitute with flexible ultrasonic wave-wave source 13 from second feed tube 52 toward sound passing membrane, sound passing membrane 73 and flexible ultrasonic wave-wave source 13 are subjected to fluidic pressure, and to a certain degree deformation all can take place, and its deformation direction is shown in the direction of arrow among Fig. 9.Because the flexibility in flexible ultrasonic wave-wave source 13 is greater than sound passing membrane 73, the deformation ratio sound passing membrane 73 in flexible ultrasonic wave-wave source 13 is bigger.The position and the shape in flexible ultrasonic wave-wave source 13 change, and to the position 14, the position of sound passing membrane 73 also changes to position 74 by the change in location shown in Fig. 9.The shape in flexible ultrasonic wave-wave source 13 changes, and corresponding change also takes place in its focus point position, focuses on focus and 1 changes to position 2 from the position thereby make.By utilizing two valves 15 on second feed tube 52 and second drain pipe 62 to control to be injected into the amount of the coupled fluid 8 in the closed space that flexible ultrasonic wave-wave source 13 and sound passing membrane 73 constituted, just can control the deformation degree in flexible ultrasonic wave-wave source 13, also just realize control flexible ultrasonic wave-wave source 13 depths of focus.
Similarly, coupled fluid in the coupling device 71 also can be the different fluid of the velocity of sound with the interior coupled fluid of seal cavity that the closed space that flexible ultrasonic wave-wave source 13 and described sound passing membrane 73 are constituted forms, this moment, ultrasound wave can be similar to the refraction of embodiment 1 on the contact surface of two kinds of coupled fluids, was the equal of being used in combination of the embodiment of the invention 1 and present embodiment.
Embodiment 7:
As shown in figure 10, be the structural representation of the embodiment of the invention 7, Figure 11 is the vertical view of Figure 10.
As shown in figure 10, in the present embodiment, focus adjustment unit comprises the sound passing membrane of being made by flexible acoustic window material 73 of sealing on installed surface 11 that a flexible material makes, the described installed surface 11.Sound passing membrane 73 is located on the ultrasonic wave propagation path, is filled with coupled fluid 8 in the closed space that described installed surface 11 and described sound passing membrane 73 are constituted, and the flexibility of sound passing membrane 73 is less than the flexibility of described installed surface 11.
Described focus adjustment unit is positioned in the coupling device 71, be full of coupled fluid 8 in the coupling device 71, be connected with first feed tube 51 and first drain pipe 61 on the outer wall of coupling device 71, installed surface 11 is connected with second feed tube 52 and second drain pipe 62 respectively with the seam of sound passing membrane 73.Ultrasonic source 3 is fixed on the installed surface 11.
On second feed tube 52 and second drain pipe 62 flow regulator is housed respectively, is used to control the coupled fluid amount of injection, in the present embodiment, flow regulator adopts valve 15.
Used a plurality of ultrasonic sources in the present embodiment, ultrasonic source can use spherical shell formula ultrasonic source, also can use the combination of plane formula ultrasonic source and acoustic lens.
When injecting coupled fluid 8 in 73 seal cavities that constituted with installed surface 11 from second feed tube 52 toward sound passing membrane, sound passing membrane 73 and installed surface 11 are subjected to fluidic pressure, and to a certain degree deformation all can take place, shown in the direction of arrow among Figure 10.Because the flexibility of installed surface 11 is greater than sound passing membrane 73, so the deformation ratio sound passing membrane 7 of installed surface 11 is bigger.The position and the shape of sound passing membrane 73 change, by the change in location shown in the figure to the position 74, the position and the shape of installed surface also change, by the change in location shown in the figure to the position 12, the position and the transmit direction of a plurality of ultrasonic sources of installing on it also just change with the deformation of installed surface 11, the focus point position changes thereupon, and the focal position changes to 2 places, position by position 1.Like this, utilize two valves 15 on second feed tube 52 and second drain pipe 62 to control the amount of the coupled fluid 8 of injection, just can control the deformation degree of installed surface 11, also just realized control a plurality of ultrasonic source depths of focus.
Similarly, coupled fluid in the coupling device 71 also can be the different fluid of the velocity of sound with the interior coupled fluid of seal cavity that the closed space that installed surface 11 and described sound passing membrane 73 are constituted forms, this moment, ultrasound wave can be similar to the refraction of embodiment 1 on the contact surface of two kinds of coupled fluids, was the equal of being used in combination of the embodiment of the invention 1 and present embodiment.
Claims (18)
1. ultrasonic generator, comprise ultrasonic source and coupling device, be filled with first coupled fluid in the described coupling device, ultrasonic source is located in the described coupling device, it is characterized in that also including the focus adjustment unit on ultrasonic wave propagation path, described focus adjustment unit places in the coupling device, and focus adjustment unit can be regulated the position of the focus point of ultrasonic source institute ultrasonic waves transmitted.
2. ultrasonic generator according to claim 1, it is characterized in that described focus adjustment unit comprises one or more liquid capsules, each liquid capsule all is positioned at coupling device, on ultrasonic wave propagation path, set gradually or comprise successively, all be filled with coupled fluid in described each liquid capsule, coupled fluid in first coupled fluid and described each liquid capsule is isolated mutually and respectively have the different velocities of sound, and ultrasonic source institute ultrasonic waves transmitted is successively through focusing on behind the coupled fluid in first coupled fluid and above-mentioned each liquid capsule.
3. ultrasonic generator according to claim 2 is characterized in that being connected with on the described coupling device first feed tube and first drain pipe, and each is connected with feed tube and drain pipe respectively on described one or more liquid capsules.
4. according to claim 2 or 3 described ultrasonic generators, it is characterized in that described ultrasonic source adopts spherical shell formula ultrasonic source, the ultrasonic source that perhaps adopts plane formula ultrasonic source and acoustic lens to be combined to form, wherein acoustic lens is close on the surface of emission of plane formula ultrasonic source.
5. ultrasonic generator according to claim 4, it is a plurality of to it is characterized in that described ultrasonic source adopts, a plurality of ultrasonic sources are installed in respectively on the base, and base adopts and can make a plurality of ultrasonic source institute ultrasonic waves transmitted that is mounted thereon converge at the shape of a bit.
6. ultrasonic generator according to claim 1, it is characterized in that described focus adjustment unit comprises one or more acoustic lens that can change the transonic direction of being located on the ultrasonic wave propagation path, if adopt a plurality of acoustic lens, each acoustic lens is located on the ultrasonic wave propagation path successively.
7. ultrasonic generator according to claim 6 is characterized in that also comprising in the described focus adjustment unit telecontrol equipment that links to each other with described acoustic lens, and telecontrol equipment can drive acoustic lens and move between ultrasonic source and focus ultrasonic point.
8. ultrasonic generator according to claim 7 is characterized in that described telecontrol equipment can drive acoustic lens and enter or withdraw from ultrasonic wave propagation path, is detachable the connection between telecontrol equipment and the acoustic lens.
9. according to the described ultrasonic generator of one of claim 6-8, it is characterized in that described ultrasonic source adopts spherical shell formula ultrasonic source or plane formula ultrasonic source.
10. ultrasonic generator according to claim 9, it is a plurality of to it is characterized in that described ultrasonic source adopts, a plurality of ultrasonic sources are installed in respectively on the base, and base adopts and can make a plurality of ultrasonic source institute ultrasonic waves transmitted that is mounted thereon converge at the shape of a bit.
11. ultrasonic generator according to claim 1, the sound passing membrane of making by flexible acoustic window material that it is characterized in that sealing on the described focus adjustment unit installed surface of making that comprises a flexible material, the described installed surface, there are one or more ultrasonic sources to be located on the described installed surface, sound passing membrane is located on the ultrasonic wave propagation path, be filled with coupled fluid in the closed space that described installed surface and described sound passing membrane constituted, the flexibility of sound passing membrane is less than the flexibility of described installed surface.
12. ultrasonic generator according to claim 11 is characterized in that being connected with on the described coupling device first feed tube and first drain pipe, the seam of described installed surface and sound passing membrane is connected with second feed tube and second drain pipe respectively.
13. ultrasonic generator according to claim 12, it is characterized in that being respectively equipped with flow regulator on described second feed tube and described second drain pipe, be used to control the flow that enters the coupled fluid in the closed space that installed surface and sound passing membrane constitute.
14. according to the described ultrasonic generator of one of claim 11-13, it is characterized in that described ultrasonic source adopts spherical shell formula ultrasonic source, the ultrasonic source that perhaps adopts plane formula ultrasonic source and acoustic lens to be combined to form, wherein acoustic lens is close on the surface of emission of plane formula ultrasonic source.
15. ultrasonic generator according to claim 1, it is characterized in that described ultrasonic source made by flexible material, described focus adjustment unit comprises the sound passing membrane of being made by flexible acoustic window material that is sealed on the flexible ultrasonic wave-wave source, sound passing membrane is located on the ultrasonic wave propagation path, be filled with coupled fluid in the closed space that described flexible ultrasonic wave-wave source and described sound passing membrane are constituted, the flexibility of described sound passing membrane is less than the flexibility of described ultrasonic source.
16. ultrasonic generator according to claim 15 is characterized in that being connected with on the described coupling device first feed tube and first drain pipe, described flexible ultrasonic wave-wave source and sound passing membrane seam are connected with second feed tube and second drain pipe respectively.
17. ultrasonic generator according to claim 16, it is characterized in that being respectively equipped with flow regulator on described second feed tube and described second drain pipe, be used to control the flow that enters the coupled fluid in the closed space that flexible ultrasonic wave-wave source and sound passing membrane constituted.
18. a supersonic therapeutic system is characterized in that including the described ultrasonic generator of one of claim 1-3,6-8,11-13,15-17.
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| CN111491578A (en) * | 2017-12-08 | 2020-08-04 | 莱斯桑百特医疗解决方案股份有限公司 | Combined noninvasive and minimally invasive mechanical energy targeting |
| CN112192447A (en) * | 2020-09-10 | 2021-01-08 | 杭州电子科技大学 | Outfield ultrasonic auxiliary jet polishing tool head device |
| CN116212257A (en) * | 2023-05-10 | 2023-06-06 | 深圳半岛医疗有限公司 | Method and apparatus for controlling ultrasonic therapy head, and readable storage medium |
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| US5156144A (en) * | 1989-10-20 | 1992-10-20 | Olympus Optical Co., Ltd. | Ultrasonic wave therapeutic device |
| CN1157239C (en) * | 2001-11-05 | 2004-07-14 | 北京源德生物医学工程股份有限公司 | Conducting medium contained structure for ultrasonic source of high-energy focusing ultrasonic treating apparatus |
| CN100475289C (en) * | 2006-01-26 | 2009-04-08 | 上海交通大学 | Large focus domain forming method for phase control array focusing supersonics |
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| CN111491578B (en) * | 2017-12-08 | 2023-11-21 | 莱斯桑百特医疗解决方案股份有限公司 | Combined non-invasive and minimally invasive mechanical energy targeting |
| CN112192447A (en) * | 2020-09-10 | 2021-01-08 | 杭州电子科技大学 | Outfield ultrasonic auxiliary jet polishing tool head device |
| CN116212257A (en) * | 2023-05-10 | 2023-06-06 | 深圳半岛医疗有限公司 | Method and apparatus for controlling ultrasonic therapy head, and readable storage medium |
| CN116212257B (en) * | 2023-05-10 | 2023-12-12 | 深圳半岛医疗集团股份有限公司 | Method and apparatus for controlling ultrasonic therapy head, and readable storage medium |
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| CN101683549B (en) | 2012-07-11 |
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