CN104623816A - Matrix type probe for ultrasonic physiotherapy instruments - Google Patents
Matrix type probe for ultrasonic physiotherapy instruments Download PDFInfo
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- CN104623816A CN104623816A CN201510037736.0A CN201510037736A CN104623816A CN 104623816 A CN104623816 A CN 104623816A CN 201510037736 A CN201510037736 A CN 201510037736A CN 104623816 A CN104623816 A CN 104623816A
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Abstract
The invention provides a matrix type probe for ultrasonic physiotherapy instruments, which comprises a shell, a piezoelectric superposed layer and a cable. The piezoelectric superposed layer consists of a piezoelectric wafer matrix, a matching layer and a backing layer. The piezoelectric wafer matrix is composed of a plurality of wafers, each wafer can be shaped like a round wafer, a rectangular wafer or the like, and the wafers are distributed in the form of a matrix; the wafers are connected with an ultrasonic physiotherapy instrument through the cable, electric excitation signals transmitted by the ultrasonic physiotherapy instrument are converted into ultrasonic waves by the wafers, and the ultrasonic waves irradiate an affected part; the matching layer is arranged at one side of the irradiating surface of the piezoelectric wafer matrix, and is used for increasing the ultrasonic radiation efficiency of the wafers; the backing layer is arranged at the other side, and the ultrasonic waves emitted by the other side of the piezoelectric wafer matrix are reflected by the backing layer. The matrix type probe provided by the invention is developed exclusively for clinical physiotherapy, is used along with the ultrasonic physiotherapy instrument, and has the characteristics of good energy focusing effect, higher specificity to foci or parts, simplicity and convenience in operation, high safety, extensive applicability and the like.
Description
Technical field
The present invention relates to ultrasonic physiotherapy table design field, particularly a kind of matrix probe for ultrasonic physiotherapy table.
Background technology
Mostly current ultrasonic physical therapy probe used is the non-focusing probe of simple beam, even the concave surface probe that can focus on, its focus is also fixing can not be changed, so will enough ultrasonic energies be had on certain depth under human body surface to play a role to tissue, the level that hyperacoustic power reaches certain must be made.But when ultrasonic power is larger, the energy having again human body superficial tissue or Deng Fei focal area, position to absorb too much causes the risk of tissue injury, so can only adopt the low-frequency ultrasonic waves that absorbance is low or so-called half-absorption layer thickness is large.
For One-dimension Phased Array probe (this probe is generally applied in ultra sonic imaging), its deflection and focusing principle as shown in fig. 1, by controlling the triggered time of each array element, can allow acoustic beam deflect different angles.It carries out electron focusing and scanning at long axis direction, and focus is adjustable; Adopt geometric focusing at short-axis direction, focal length is non-adjustable.
Simple beam probe cannot carry out the adjustment of focal length for the tissue characteristics at different focus or position and subcutaneous depth, and in order to make target place receive enough ultrasonic energies to reach therapeutic effect, must have enough large transmitting power.
In order to avoid excessive ultrasonic energy is to the damage of skin and non-lesion tissue, the transmitting power of system must be limited in again in the safety range of regulation.The subject matter brought like this one is that the focus of subcutaneous depths is difficult to obtain the energy intensity needed, thus therapeutic effect is undesirable all the time, non-lesion tissue absorbs again a lot of energy simultaneously, make must there be time enough interval in the middle of the time of each treatment long and two treatments, make non-lesion tissue functional recovery avoid irreversible damage, thus considerably increase the physical therapy cycle course for the treatment of.
Summary of the invention
In order to solve the problem, the invention provides a kind of matrix probe for ultrasonic physiotherapy table, including:
Piezoelectric chip battle array, is made up of some wafers, and these wafers are matrix form distribution; Described wafer is connected with ultrasonic physiotherapy table main frame, and the pumping signal that described ultrasonic physiotherapy table main frame sends is converted into ultrasound wave via described piezoelectric chip battle array, thus is radiated sufferer place.
Matching layer, is arranged on the side of described piezoelectric chip battle array, and the ultrasonic energy that described piezoelectric chip battle array side radiating surface is launched is launched through described matching layer, and described matching layer is for improving ultrasonic radiation efficiency;
Backing layer, is arranged on the opposite side of described piezoelectric chip battle array, and described backing layer is mainly used in the ultrasonic energy reflecting the transmitting of described piezoelectric chip battle array opposite side radiating surface.
Preferably, described wafer can adopt Circular wafer.
Preferably, the described matrix probe for ultrasonic physiotherapy table also comprises a housing, described shell one end opening, and described backing layer, piezoelectric chip battle array and matching layer are all arranged in described housing, and radiating surface is positioned at described opening part.
Preferably, described housing is also provided with a cable be connected with described ultrasonic physiotherapy table main frame, the both positive and negative polarity of each described wafer is connected with described cable by electric wire.
Preferably, described wafer adopts piezoceramic material to make or monocrystalline piezoelectric material is made or piezo-electricity composite material is made.
Preferably, the impedance of described matching layer is between the acoustic impedance and human body acoustic impedance of described wafer layer.
The present invention, owing to adopting above technical scheme, makes it compared with prior art, has following advantage and good effect:
1) in the matrix probe for ultrasonic physiotherapy table provided by the invention, some wafers are matrix form distribution, both can on the direction vertical with the surface of emission zoom, also can simultaneously at parallel direction zoom, namely all can focus at the elevation angle and azimuth direction, thus greatly expand focusing, the sweep limits of probe, realize carrying out the treatment of low-intensity Voice segment formula for human body different parts or focus, improve the effect for the treatment of, more convenient and quicker;
2) matrix probe for ultrasonic physiotherapy table provided by the invention, by arranging a matching layer between wafer layer and human body, and make the impedance of matching layer between wafer layer acoustic impedance and human body acoustic impedance, improve radiation efficiency, make more ultrasonic energy enter into used inside human body in physical therapy, thus improve work efficiency and physiotheraping effect greatly;
3) matrix probe for ultrasonic physiotherapy table provided by the invention, by arranging backing layer, the energy major part that wafer layer is launched back to the side of shell nozzle is reflected by backing layer, and directive shell nozzle side, thus strengthen the ultrasonic energy be transmitted on human body, effectively raise physiotheraping effect.
Accompanying drawing explanation
By reference to the accompanying drawings, by detailed description hereafter, above-mentioned and other feature and advantage of the present invention more clearly can be understood, wherein:
Fig. 1 is deflection and the focusing principle figure of prior art midplane simple beam probe;
Fig. 2 is the structural representation of matrix probe provided by the invention;
Fig. 3 is the structural representation of wafer layer in the present invention;
Fig. 4 is deflection and the focusing principle figure of matrix probe of the present invention.
Symbol description:
1-wafer layer
101-wafer
2-matching layer
3-backing layer
4-housing
5-electric wire
6-cable.
Detailed description of the invention
See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention by many multi-form realizations, and can should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
With reference to Fig. 2-Fig. 4, the invention provides a kind of matrix probe, mainly develop for clinical ultrasound physical therapy purposes, it is combined with ultrasonic physiotherapy table; The plane simple beam probe that compared to existing technology, ultrasonic physiotherapy table uses or concave surface simple beam probe, the ultrasonic energy focusing effect of matrix probe provided by the invention is better, focus or position specific aim stronger, and operation is more simple and convenient, has the features such as safety is high, the suitability is wide.
Concrete, this matrix probe includes a housing 4, laminated piezoelectric and cable 6, and laminated piezoelectric comprises piezoelectric chip battle array 1, backing layer 3 and matching layer 2; Housing 4 one end open, cable 6 is connected with ultrasonic physiotherapy table main frame.As shown in Figure 3, wherein piezoelectric chip battle array 1 is provided with some wafers 101, and these wafers are matrix form distribution; In piezoelectric chip battle array 1, the line number of wafer 101 and the setting of columns are not all restricted herein, can adjust as the case may be.Wafer 101 can adopt piezoceramic material, monocrystalline piezoelectric material, piezo-electricity composite material etc. to be made, and is not restricted herein; The both positive and negative polarity of each wafer 101 is all connected by the cable 6 of electric wire 5 with housing 4 other end; Each wafer 101 is all connected with ultrasonic physiotherapy table main frame by cable 6, and pumping signal is delivered on each wafer 101 by main frame, and converts electrical signals to ultrasound wave by wafer 101, thus carries out ultrasonic physical therapy.
In matrix probe provided by the invention, some wafers 101 are designed to matrix form distribution, ultrasonic physiotherapy table main frame adopts phased array scanning to carry out the control of ultrasonic wave acoustic beam, scan via ultrasound beamformer can be allowed after piezoelectric chip battle array 1 and focus on the direction vertical with the surface of emission (i.e. wafer layer place plane), also can simultaneously in the enterprising line scanning in parallel direction and focusing, namely all can focus at the elevation angle and azimuth direction, thus probe is focused on arbitrfary point, radiation areas, as shown in Figure 4; Therefore, matrix probe expands focusing, the sweep limits of probe greatly, can carry out the scanning in space simultaneously, also can carry out the focusing in space simultaneously, realize carrying out the treatment of low-intensity Voice segment formula for human body different parts or focus, improve the effect for the treatment of, more convenient and quicker.Especially, when for physical therapy in the outer thrombolytic of cranium, relative to adopting the problem that simple beam is popped one's head in or ring battle array probe focus region is limited in prior art, the present invention can focus in arbitrfary point, radiation areas, and the confined area of cranium outer ultrasonic thrombolytic is reduced greatly.
In the present embodiment, the change of wafer 101 thickness can cause the change of ultrasonic frequency, therefore can decide the thickness of wafer 101 according to the degree of depth at the position of required physical therapy, not be restricted herein.In the present embodiment, these wafers 101 preferably adopt Circular wafer, and wafer 101 also can be square or other shapes, is not restricted herein.
In the present embodiment, backing layer 3 and matching layer 2 are separately positioned on the both sides of piezoelectric chip battle array 1, and cover the radiating surface of piezoelectric chip battle array 1 both sides.Matching layer 2 is arranged on the radiating surface side of piezoelectric chip battle array 1, and the ultrasonic energy that piezoelectric chip battle array 1 produces is radiated on human body and carries out physical therapy after matching layer 2; Because human body and wafer 101 all have certain acoustic impedance, and the acoustic impedance of human body is usually significantly lower than the acoustic impedance of wafer 101, if the ultrasonic energy that piezoelectric chip battle array 1 is launched is transmitted directly on human body, the energy major part that piezoelectric chip battle array 1 can be caused to be transmitted on human body due to larger acoustic impedance difference is reflected back, thus the ultrasonic energy for physical therapy is lost in a large number, do not have physiotheraping effect; The present invention by arranging a matching layer 2 between piezoelectric chip battle array 1 and human body, and make the acoustic impedance of matching layer 2 between the acoustic impedance and human body acoustic impedance of piezoelectric chip battle array 1, reduce the reflection of energy, make more ultrasonic energy enter into used inside human body in physical therapy, thus improve work efficiency and physiotheraping effect.The determination of matching layer 2 material, can select according to the acoustic impedance of wafer 101 and human body, not be restricted herein.
In the present embodiment, backing layer 3 is arranged on the opposite side of piezoelectric chip battle array 1; Due to wafer 101 receive the excitation electric signal of ultrasonic physiotherapy table main frame after two sides all can launch ultrasound wave, and the energy only having radiating surface side to launch comes for human body physical therapy; The present invention is by arranging backing layer 3, and the energy major part that piezoelectric chip battle array 1 is launched back to radiating surface side is reflected back radiating surface side by backing layer 3, thus strengthens the ultrasonic energy be transmitted on human body, effectively can improve physiotheraping effect.Backing layer 3 specifically can adopt the low resistivity materials such as epoxy resin to be made, and can select as the case may be, not be restricted herein.
In sum, the invention provides a kind of matrix probe for ultrasonic physiotherapy table, comprise housing and be arranged on piezoelectric chip battle array, matching layer and the backing layer in housing.Piezoelectric chip battle array is made up of some wafers, and these wafers are matrix form distribution; Wafer is connected with ultrasonic physiotherapy table main frame, and the excitation electric signal that described ultrasonic physiotherapy table main frame sends is converted into ultrasound wave via described piezoelectric chip battle array, thus is radiated sufferer place; Matching layer is arranged on the radiating surface of piezoelectric chip battle array, and the energy that wafer layer radiating surface side is launched is launched through matching layer, and matching layer is for improving the radiation efficiency of wafer; Backing layer is arranged on the opposite side of wafer layer, and the ultrasound wave major part that wafer layer opposite side is launched is reflected by backing layer.Matrix probe provided by the invention, is specially for the exploitation of clinical ultrasound physical therapy purposes, is combined with ultrasonic physiotherapy table, has that energy-focusing effects is good, focus or a feature such as position specific aim is stronger, simple to operation, safety is high, the suitability is wide.
Those skilled in the art should be understood that the present invention can be realized by other concrete forms many and not depart from the spirit or scope of the present invention.Although describe embodiments of the invention, the present invention should be understood and should not be restricted to these embodiments, within the spirit and scope of the invention that those skilled in the art can define as appended claims, make change and amendment.
Claims (6)
1. for a matrix probe for ultrasonic physiotherapy table, it is characterized in that, include:
Piezoelectric chip battle array, is made up of some wafers, and these wafers are matrix form distribution; Described wafer is connected with ultrasonic physiotherapy table main frame, and the pumping signal that described ultrasonic physiotherapy table main frame sends is converted into ultrasound wave via described piezoelectric chip battle array, thus is radiated sufferer place;
Matching layer, is arranged on the side of described piezoelectric chip battle array, and the ultrasonic energy that described piezoelectric chip battle array side radiating surface is launched is launched through described matching layer, and described matching layer is for improving ultrasonic radiation efficiency;
Backing layer, is arranged on the opposite side of described piezoelectric chip battle array, the ultrasonic energy that described backing layer is launched for reflecting described piezoelectric chip battle array opposite side radiating surface.
2. according to the matrix probe for ultrasonic physiotherapy table according to claim 1, it is characterized in that, described wafer adopts Circular wafer.
3. according to the matrix probe for ultrasonic physiotherapy table according to claim 1, it is characterized in that, the described matrix probe for ultrasonic physiotherapeutic instruments also comprises a housing, described shell one end opening, described backing layer, piezoelectric chip battle array and matching layer are all arranged in described housing, and radiating surface is positioned at described opening part.
4. according to the matrix probe for ultrasonic physiotherapy table according to claim 3, it is characterized in that, described housing is also provided with a cable be connected with described ultrasonic physiotherapeutic instrument main frame, the both positive and negative polarity of each described wafer is all connected with described cable by electric wire.
5. according to the matrix probe for ultrasonic physiotherapy table according to claim 1, it is characterized in that, described wafer adopts piezoceramic material to make or monocrystalline piezoelectric material is made or piezo-electricity composite material is made.
6. according to the matrix probe for ultrasonic physiotherapy table according to claim 1, it is characterized in that, the acoustic impedance of described matching layer is between the acoustic impedance and human body acoustic impedance of described wafer layer.
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| CN201510037736.0A CN104623816A (en) | 2015-01-26 | 2015-01-26 | Matrix type probe for ultrasonic physiotherapy instruments |
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| CN201510037736.0A CN104623816A (en) | 2015-01-26 | 2015-01-26 | Matrix type probe for ultrasonic physiotherapy instruments |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105944246A (en) * | 2016-06-01 | 2016-09-21 | 华南理工大学 | Cosmetic health preserving ultrasonic focusing massage rod |
| CN109420262A (en) * | 2018-05-21 | 2019-03-05 | 上海市第六人民医院 | A kind of gout and device for treating pains |
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| CN103977508A (en) * | 2014-04-28 | 2014-08-13 | 中国科学院苏州生物医学工程技术研究所 | Smart ultrasonic physical therapy instrument |
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| CN204522037U (en) * | 2015-01-26 | 2015-08-05 | 上海爱声生物医疗科技有限公司 | A kind of matrix probe for ultrasonic physiotherapy table |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120059288A1 (en) * | 2004-09-16 | 2012-03-08 | Guided Therapy Systems, Llc | Method and system for ultrasound treatment with a multi-directional transducer |
| CN103977508A (en) * | 2014-04-28 | 2014-08-13 | 中国科学院苏州生物医学工程技术研究所 | Smart ultrasonic physical therapy instrument |
| CN103983699A (en) * | 2014-05-30 | 2014-08-13 | 北京理工大学 | Flexible comb-shaped acoustic surface wave phased-array energy converter |
| CN204522037U (en) * | 2015-01-26 | 2015-08-05 | 上海爱声生物医疗科技有限公司 | A kind of matrix probe for ultrasonic physiotherapy table |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944246A (en) * | 2016-06-01 | 2016-09-21 | 华南理工大学 | Cosmetic health preserving ultrasonic focusing massage rod |
| CN105944246B (en) * | 2016-06-01 | 2019-04-09 | 华南理工大学 | A kind of beauty and health care focus ultrasonic massage bar |
| CN109420262A (en) * | 2018-05-21 | 2019-03-05 | 上海市第六人民医院 | A kind of gout and device for treating pains |
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Application publication date: 20150520 |