CN101152646A - Flexible ultrasonic transducer array and applying device of the same - Google Patents

Flexible ultrasonic transducer array and applying device of the same Download PDF

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Publication number
CN101152646A
CN101152646A CNA2006101595522A CN200610159552A CN101152646A CN 101152646 A CN101152646 A CN 101152646A CN A2006101595522 A CNA2006101595522 A CN A2006101595522A CN 200610159552 A CN200610159552 A CN 200610159552A CN 101152646 A CN101152646 A CN 101152646A
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ultrasonic transducer
ultrasonic
flexible
transducer array
shape
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CNA2006101595522A
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Chinese (zh)
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CN101152646B (en
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郑永平
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香港理工大学
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Abstract

The invention provides a flexible ultrasonic transducer array, which comprises at least two ultrasonic transducer units and flexible layer medium. The ultrasonic transducer is arranged in the flexible layer medium or on the surface of the flexible layer medium in the form of array; an ultrasonic device comprises at least two ultrasonic transducer units, an ultrasonic emitter/ultrasonic transceiver, ultrasonic coupling medium, a microprocessor and flexible layer medium, and the ultrasonic transducer unit is arranged in or on the surface of flexible layer medium in the form of array to form the flexible ultrasonic transducer array; the ultrasonic transducer array and the ultrasonic device also comprises a shape scanner/shape sensor which is used for measuring superficial shape information of the flexible ultrasonic transducer array and helping ultrasonic beam focus and orient. As the flexible ultrasonic transducer array can attach to body position with different superficial shapes, the technical proposal of the invention can realize the effect of ultrasonic treatment/ultrasonic imaging which can be realized by the prior art.

Description

Flexible ultrasonic transducer array and application apparatus thereof
Technical field
The present invention relates to ultrasonic transducer, relate in particular to ultrasound transducer array; More particularly, the present invention relates to the flexible ultrasonic transducer array of shape variable, and this flexible ultrasonic transducer array is at the application apparatus of medical domains such as ultrasonic therapy and ultrasonic imaging.
Background technology
The conventional ultrasound transducer array generally has two kinds of shapes, or is flat shape, or is curved shape; And its shape always immobilizes, and relative position and the direction wherein respectively formed between the transducer also always immobilize.When the body part with curved shape needs ultrasonic imaging or ultrasonic therapy,, just must press tissue surface to the conventional ultrasound transducer array to this body part in order to obtain good contact.Even so, often still can't obtain good contact.For example, when limb fracture is carried out ultrasonic therapy, the conventional ultrasound transducer array limbs surface of just can not fitting well.
In addition, under most situation, when the application conventional ultrasound transducer was carried out ultrasonic imaging or ultrasonic therapy, the geometric shape that can not accept body part changed.For example, body part is carried out in deformation-free three-dimensional (3D) the three-dimensional shape imaging process in the application conventional ultrasound transducer, just do not allow this body part any geometric shape to occur and change, to avoid changing the ultrasonic imaging poor effect that causes because of this geometric shape.
Summary of the invention
The prior art state that effect is not good and the application scenario is limited at above-mentioned conventional ultrasound transducer array, the object of the invention is, provide a kind of flexible ultrasonic transducer array, thereby its shape variable can be fitted well and had the body part of different surfaces shape.
Another purpose of the present invention is, the Vltrasonic device of using this flexible ultrasonic transducer array is provided, and because of the body part of can fitting well of flexible ultrasonic transducer array wherein, thereby can obtain the prior art good result that is beyond one's reach.
In order to realize the foregoing invention purpose, the technical scheme that the present invention takes is: a kind of flexible ultrasonic transducer array is provided, includes quantity and be no less than 2 ultrasonic transducer unit and flexible layer medium; Described flexible layer shape of medium is variable, thereby can fit in the surface of ultrasonic therapy/ultrasonic imaging object; And described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format, thereby described array shape can change with the change of shape of described flexible layer medium.Wherein: described array format can be the one-dimensional array form, also can be two-dimensional array form; Described flexible layer medium can be condition flexible layer media such as thermoplastic or memorial alloy, this condition flexible layer medium under its corresponding flexible condition (such as, temperature is higher than a certain particular value) time shape variable; Also can be full flexible layer media such as silica gel, the shape of this full flexible layer medium is variable always; Described flexible ultrasonic transducer array can be supported by bracing or strutting arrangement, also can be placed in this bracing or strutting arrangement; This bracing or strutting arrangement or be limbs/artifucial limb support seat (socket), or be orthopaedic instrumentation, or for medical support (shell) even be the various devices that other are used to support such as cushion.
Further one of method of improving above-mentioned flexible ultrasonic transducer array is, increases the shape scanner; This shape scanner be used for before this flexible ultrasonic transducer array uses or among measure its surface configuration, obtain the surface shape information of this flexible ultrasonic transducer array; And this surface shape information then can be used for controlling the input of the excitation signal of telecommunication of each ultrasonic transducer unit in this flexible ultrasonic transducer array and/or the collection of ultrasonic pulse-echo signal, to help the focusing and the orientation of ultrasonic beam.Wherein, described shape scanner is the optic shape imager.
Further two of the method for the above-mentioned flexible ultrasonic transducer array of improvement is to increase shape sensor; This shape sensor is used for monitoring its surface configuration in real time in this flexible ultrasonic transducer array use, obtains the surface shape information that this flexibility plays acoustic transducer array; And this surface shape information can be used for controlling the input of the excitation signal of telecommunication of each ultrasonic transducer unit in this flexible ultrasonic transducer array and/or the collection of ultrasonic pulse-echo signal equally, to help the focusing and the orientation of ultrasonic beam.Wherein: the quantity of described shape sensor is no less than 1, and its concrete value is decided on the equipment precision of accuracy requirement and institute's employing sensor; Described shape sensor is an electric transducer, or is optical sensor, or is sonac, or is any existing known sensor; Described shape sensor can be placed among the described flexible ultrasonic transducer array, also can be placed in the surface of described flexible ultrasonic transducer array, also can be placed in the top of described flexible ultrasonic transducer array.
In order to realize above-mentioned another goal of the invention, one of technical scheme that the present invention takes is: a kind of Vltrasonic device is provided, and this Vltrasonic device includes quantity and is no less than 2 ultrasonic transducer unit, ultrasonic transmitter, ultrasonic couplant, and microprocessor; Wherein: described ultrasonic transducer unit, link to each other with detected object by described ultrasonic couplant, be used for converting the excitation signal of telecommunication to ultrasonic wave; Described ultrasonic transmitter links to each other with described ultrasonic transducer unit and described microprocessor respectively, is used to produce the excitation signal of telecommunication with supersonic frequency, and should encourage the signal of telecommunication to import described ultrasonic transducer unit; Described microprocessor links to each other with described ultrasonic transmitter, is used to control parameter; And described parameter includes, frequency of ultrasonic, intensity, dutycycle, launch time, and the input delay of described each ultrasonic transducer element excitation signal of telecommunication; In addition, this Vltrasonic device also includes the flexible layer medium, and described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format, constitutes flexible ultrasonic transducer array.
In order to realize above-mentioned another goal of the invention, two of the technical scheme that the present invention takes is: another kind of Vltrasonic device is provided, and this Vltrasonic device includes quantity and is no less than 2 ultrasonic transducer unit, ultrasonic couplant, the ultrasound emission receiver, microprocessor, and image iatron; Wherein, described ultrasonic transducer unit links to each other with detected object by described ultrasonic couplant, is used for the excitation signal of telecommunication and ultrasonic wave are changed mutually; Described ultrasound emission receiver, link to each other with described ultrasonic transducer unit and described microprocessor respectively, should encourage the signal of telecommunication to import described ultrasonic transducer unit after being used to produce the excitation signal of telecommunication, and after receiving the ultrasonic pulse-echo signal that feeds back by described ultrasonic transducer unit this ultrasound echo signal be imported described microprocessor with supersonic frequency; Described microprocessor links to each other with described ultrasound emission receiver and described image iatron respectively, is used to control parameter and described ultrasonic pulse-echo signal is carried out data acquisition and processing; Described image iatron links to each other with described microprocessor, is used to show described parameter and ultrasonic signal and image; And described parameter includes, described frequency of ultrasonic, intensity, pulse width, transmission interval, and the input delay of described each ultrasonic transducer element excitation signal of telecommunication; Identical with aforementioned a kind of Vltrasonic device provided by the invention, this another kind Vltrasonic device yet includes the flexible layer medium, and described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format, constitutes flexible ultrasonic transducer array.
Like this, a kind of Vltrasonic device that the invention described above provides can be used for ultrasonic therapy, and because of the various body parts with difformity surface of can fitting of flexible ultrasonic transducer array wherein, thereby obtain good ultrasonic therapy effect; And the another kind of Vltrasonic device that the invention described above provides can be used for ultrasonic imaging, also can be used for ultrasonic imaging and ultrasonic therapy simultaneously, and, thereby obtain good ultrasonic imaging/ultrasonic therapy effect because of the various body parts of can fitting of flexible ultrasonic transducer array wherein with difformity surface.
With aforementioned flexible ultrasonic transducer array provided by the invention, for above-mentioned two kinds of Vltrasonic devices provided by the invention, it one of is improved one's methods is to increase the shape scanner; This shape scanner, be used for before starting working in described ultrasonic transducer unit or among the described flexible ultrasonic transducer array of scanning, obtain the surface shape information of this flexible ultrasonic transducer array, and send it to described microprocessor; This microprocessor calculates the time delay of each ultrasonic transducer unit in this flexible ultrasonic transducer array according to this surface shape information, and sends it to described ultrasonic transmitter/ultrasound emission receiver; This ultrasonic transmitter/ultrasound emission receiver is controlled the input of described each ultrasonic transducer element excitation signal of telecommunication and/or the collection of ultrasonic pulse-echo signal according to above-mentioned time delay, to help the focusing and the orientation of ultrasonic beam.
With aforementioned flexible ultrasonic transducer array provided by the invention, for above-mentioned two kinds of Vltrasonic devices provided by the invention, what it was improved one's methods two is to increase shape sensor; This shape sensor is used for the surface configuration at the described flexible ultrasonic transducer array of the real-time monitoring of this device use, obtains the surface shape information of this flexible ultrasonic transducer array, and sends it to described microprocessor; This microprocessor calculates the time delay of each ultrasonic transducer unit in this flexible ultrasonic transducer array according to this surface shape information, and sends it to described ultrasonic transmitter/ultrasound emission receiver; This ultrasonic transmitter/ultrasound emission receiver is according to above-mentioned time delay, controls the input of the excitation signal of telecommunication of each ultrasonic transducer unit and/or the collection of ultrasonic pulse-echo signal, to help the focusing and the orientation of ultrasonic beam.
Wherein: the quantity of described shape sensor is no less than 1, and its concrete value is decided on the equipment precision of accuracy requirement and institute's employing sensor; Described shape sensor is an electric transducer, or is optical sensor, or is sonac, or is any existing known sensor; And described shape sensor can be placed among the described flexible ultrasonic transducer array, also can be placed in the surface of described flexible ultrasonic transducer array, also can be placed in the top of described flexible ultrasonic transducer array.
The invention has the advantages that: flexible ultrasonic transducer array provided by the invention, its surface configuration can change with the change of flexible layer shape of medium wherein, thereby can fit various positions, and then Vltrasonic device that make to use this flexible ultrasonic transducer array can obtain the prior art ultrasonic therapy/imaging effect that is beyond one's reach with different surfaces shape.
Another advantage of the present invention is: by recording or monitor in real time the surface configuration of flexible ultrasonic transducer array in advance, and regulate wherein the input delay of each ultrasonic transducer element excitation signal of telecommunication and/or the collection of ultrasonic pulse-echo signal postpones according to this surface shape information, thereby make Vltrasonic device provided by the invention can carry out the focusing and the orientation of ultrasonic beam more targetedly, and then further improve ultrasonic therapy/imaging effect.
Further advantage of the present invention is: by adopting the full flexible layer medium as silica gel and so on, make flexible ultrasonic transducer array provided by the invention keep flexible during use always, thereby make the body part that this flexible ultrasonic transducer array can fit in needs ultrasonic therapy/imaging, and the geometric shape that in use adapts to this body part changes and to make corresponding alteration of form.
Description of drawings
Fig. 1-A: the one-dimensional array form of flexible ultrasonic transducer array of the present invention
Fig. 1-B: the two-dimensional array form of flexible ultrasonic transducer array of the present invention
Fig. 2: the structural representation of Vltrasonic device first embodiment of the present invention
Fig. 3: the structural representation of Vltrasonic device second embodiment of the present invention
Fig. 4: the structural representation of Vltrasonic device the 3rd embodiment of the present invention
Fig. 5: the structural representation of Vltrasonic device the 4th embodiment of the present invention
Fig. 6-A: the present invention settles the schematic diagram of one of embodiment of shape sensor
Fig. 6-B: the present invention settles two schematic diagram of the embodiment of shape sensor
Fig. 6-C: the present invention settles three schematic diagram of the embodiment of shape sensor
Fig. 6-D: the present invention settles four schematic diagram of the embodiment of shape sensor
The specific embodiment
As mentioned above, the invention provides a kind of flexible ultrasonic transducer array, it is no less than 2 ultrasonic transducer unit and is placed among the flexible layer medium or surface composition with array format by quantity; Wherein, described array format can be the one-dimensional array form shown in Fig. 1-A, also can be the two-dimensional array form shown in Fig. 1-B.In a word, the quantity and the array format of described ultrasonic transducer unit (110) can choose at random according to actual needs; And this flexible ultrasonic transducer array is because of its ultrasonic therapy/ultrasonic imaging object that can fit and have the different surfaces shape, thereby obtains the prior art good ultrasonic therapy/imaging effect that is beyond one's reach; And, also can be by increasing shape scanner or shape sensor, be used for before this flexible ultrasonic transducer array work or among its surface shape information of monitoring, and regulate the input delay of the excitation signal of telecommunication of described each ultrasonic transducer unit according to this surface shape information and/or the collection of ultrasonic pulse-echo signal postpones, thereby can carry out focus ultrasonic and wave beam orientation more targetedly, and then further improve ultrasonic therapy/imaging effect.
For above-mentioned flexible ultrasonic transducer array, described flexible layer medium can be the condition flexible layer medium as thermoplastic, memorial alloy and so on: these condition flexible layer media are rigidity at ordinary times, but corresponding flexible condition (such as, temperature is higher than certain particular value) following time this condition flexible layer medium will become flexible so that its shape variable, and reply rigidity after a period of time again breaking away from flexible condition.Like this, under flexible condition, described flexible ultrasonic transducer array is placed in the body part surface that needs ultrasonic therapy/imaging, makes the shape of this flexible ultrasonic transducer array change with the change of flexible layer shape of medium wherein; After after a while, this flexible layer medium is hardening again, and fit the fully surface configuration of this body part of the shape of this flexible ultrasonic transducer array at this moment.And, used flexible ultrasonic transducer array is placed corresponding flexible condition following time once more, flexible layer medium in this flexible ultrasonic transducer array will be replied flexible, have the body part of another kind of different surfaces shape thereby make this flexible ultrasonic transducer array to fit once more.
For above-mentioned flexible ultrasonic transducer array, described flexible layer medium also can be the full flexible layer medium as silica gel and other known deformable materials and so on: these full flexible layer media keep flexible always, that is to say that the shape of this full flexible layer medium continues variable.Make like this, be placed among the full flexible layer medium or the flexible ultrasonic transducer array on surface, the various body parts of can in use fitting with different surfaces shape, and can also adapt to any geometric shape that body part occurs and change and make corresponding alteration of form.
In addition, above-mentioned flexible ultrasonic transducer array can be supported by bracing or strutting arrangement, also can be placed in this bracing or strutting arrangement; This bracing or strutting arrangement or be limbs/artifucial limb support seat (socket), or be orthopaedic instrumentation, or for medical support (shell) even be the various devices that other are used to support such as cushion.
From the above as can be known, only need to existing, after the widely used ultrasonic instrument of medical domain is done corresponding the improvement, flexible ultrasonic transducer array provided by the invention just can with these ultrasonic instrument co-operation, be used for ultrasonic therapy/imaging to body part.
Such as, as shown in Figure 2: for the existing known ultrasonic instrument that includes ultrasonic transducer unit (110), ultrasonic couplant (200), ultrasonic transmitter (310) and microprocessor (400), wherein ultrasonic transducer unit (110) is placed in flexible layer medium (120) surface constituting flexible ultrasonic transducer array provided by the invention with array format, thereby makes this ultrasonic instrument be improved to Vltrasonic device first embodiment of the present invention.And, when using Vltrasonic device shown in Figure 2 body part (900) being carried out ultrasonic therapy,, thereby obtain the prior art ultrasonic therapy effect that is beyond one's reach because of the various body parts of can fitting of flexible ultrasonic transducer array wherein with different surfaces shape.
Equally, as shown in Figure 3:, equally ultrasonic transducer unit (110) wherein is placed in flexible layer medium (120) surface to constitute flexible ultrasonic transducer array provided by the invention with array format for the existing known ultrasonic instrument that includes ultrasonic transducer unit (110), ultrasonic couplant (200), ultrasound emission receiver (320), microprocessor (400) and image iatron (500); Thereby make this ultrasonic instrument be improved to Vltrasonic device second embodiment of the present invention.And, when using Vltrasonic device shown in Figure 3 body part (900) being carried out ultrasonic imaging,, thereby obtain the prior art ultrasonic imaging effect that is beyond one's reach because of the various body parts of can fitting of flexible ultrasonic transducer array wherein with different surfaces shape.
Need to prove: 1, Fig. 2 and Fig. 3 only show ultrasonic transducer unit (110) and are placed in this a kind of embodiment of flexible layer medium (120) surface, but in fact also can adopt another kind of embodiment, be about to ultrasonic transducer unit (110) and be placed among the flexible layer medium (120), and these two kinds of embodiments can reach same ultrasonic therapy/imaging effect; 2, Vltrasonic device and the Vltrasonic device that is used for ultrasonic imaging shown in Figure 3 that is used for ultrasonic therapy shown in Figure 2 can be distinguished independent self-organizing system, also can be combined into a system mutually.
Conventional ultrasound transducer array with fixed in shape in the existing known ultrasonic instrument is improved to after the flexible ultrasonic transducer array provided by the invention as mentioned above, also can continue further to improve.Such as: as shown in Figure 4, on the Vltrasonic device of the present invention shown in Figure 2 first embodiment basis, increase a shape scanner (610), constitute Vltrasonic device the 3rd embodiment of the present invention; Perhaps, as shown in Figure 5, on the Vltrasonic device of the present invention shown in Figure 3 second embodiment basis, increase a shape scanner (610), constitute Vltrasonic device the 4th embodiment of the present invention.Wherein, shape scanner (610) links to each other with microprocessor (400), be used in advance/use the surface configuration that records flexible ultrasonic transducer array in the Vltrasonic device, make this Vltrasonic device can regulate the collection delay of the input delay and/or the ultrasonic pulse-echo signal of ultrasonic transducer unit (110) the excitation signal of telecommunication according to this surface shape information, and then make this Vltrasonic device can carry out the focusing and the orientation of ultrasonic beam more targetedly, so that further improve ultrasonic therapy/imaging effect.
Adopt the shape scanner to record the surface configuration of flexible ultrasonic transducer array in advance, be used for focus ultrasonic and wave beam orientation, its processing procedure can briefly be described as:
At first, before start working ultrasonic transducer unit (110)/use in, the flexible ultrasonic transducer array that shape scanner (610) scanning is made up of this ultrasonic transducer unit (110) and flexible layer medium (120), obtain the surface shape information of this flexible ultrasonic transducer array, and this surface shape information is sent to microprocessor (400);
Subsequently, microprocessor (400) is according to this surface shape information, calculate the input delay of the excitation signal of telecommunication of each ultrasonic transducer unit (110) and/or the collection of ultrasonic pulse-echo signal and postpone, and this result of calculation is sent to ultrasonic transmitter (310)/ultrasound emission receiver (320);
At last, ultrasonic transmitter (310)/ultrasound emission receiver (320) is controlled the input of each ultrasonic transducer unit (110) excitation signal of telecommunication and/or the collection of ultrasonic pulse-echo signal according to the aforementioned calculation result, is used for the focusing and the orientation of ultrasonic beam.
In addition, the present invention also provides another kind of embodiment, can reach the improvement effect that above-mentioned Vltrasonic device can carry out focus ultrasonic and wave beam orientation more targetedly equally; This another kind embodiment is exactly: monitor the surface configuration of flexible ultrasonic transducer array in the Vltrasonic device in real time by increasing shape sensor, make this Vltrasonic device to regulate the time delay of the ultrasonic transducer element excitation signal of telecommunication, and then make this Vltrasonic device can carry out the focusing and the orientation of ultrasonic beam more targetedly according to this surface shape information.
Improving one's methods of this employing shape sensor, with improving one's methods of above-mentioned employing shape scanner, both principles are identical and processing procedure is also similar; So locate to repeat no more both identical points, only emphasize to adopt the special character of shape sensor:
(1) shape sensor can adopt any existing known sensor, or is electric transducer, or is optical sensor, or is sonac; And the quantity of shape sensor is no less than 1, and its concrete numerical value is decided by the equipment precision of accuracy requirement and the sensor that adopted.
(2) with reference to Fig. 6-A, Fig. 6-B, Fig. 6-C, and Fig. 6-D as can be seen: shape sensor (620) can be placed in upper surface (Fig. 6-A) of flexible ultrasonic transducer array in the Vltrasonic device (100), also can be placed among the flexible ultrasonic transducer array (100) (Fig. 6-B), also can be placed in lower surface (Fig. 6-C), and the top (Fig. 6-D) that also can be placed in flexible ultrasonic transducer array (100) of flexible ultrasonic transducer array (100); Wherein, described flexible ultrasonic transducer array (100) is made up of ultrasonic transducer unit and flexible layer medium.
(3) shape sensor can be used for monitoring in real time the surface configuration of flexible ultrasonic transducer array, this be used in advance with the shape scanner/use disposable record different; And make thus to increase that Vltrasonic device shape sensor, that include the flexible ultrasonic transducer array that adopts full flexible layer medium is arranged, in its use, can regulate the time delay of each ultrasonic transducer element excitation signal of telecommunication in real time according to real-time monitoring gained surface shape information; And then make this Vltrasonic device to fit to have the body part of different surfaces shape, and the geometric shape that adapts to this body part changes and makes corresponding alteration of form, and do not influence ultrasonic therapy/imaging effect.When the body part with different surfaces shape is carried out comprehensive ultrasonic scanning, adopt the advantage of shape sensor and full flexible layer medium especially obvious simultaneously.
What need statement is that the foregoing invention content and the specific embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the qualification to protection domain of the present invention.Those skilled in the art are in spirit of the present invention and principle, when doing various modifications, being equal to and replacing or improve.Protection scope of the present invention is as the criterion with appended claims.

Claims (15)

1. a flexible ultrasonic transducer array includes quantity and is no less than 2 ultrasonic transducer unit; It is characterized in that: this flexible ultrasonic transducer array also includes the flexible layer medium, and described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format.
2. flexible ultrasonic transducer array as claimed in claim 1 is characterized in that, described flexible layer medium is a thermoplastic, or is memorial alloy, or is silica gel.
3. flexible ultrasonic transducer array as claimed in claim 1 is characterized in that, described flexible layer medium is supported by bracing or strutting arrangement, or is placed in this bracing or strutting arrangement; Described bracing or strutting arrangement is limbs/artifucial limb support seat, or is orthopaedic instrumentation, or is medical support.
4. flexible ultrasonic transducer array as claimed in claim 1 is characterized in that this flexible ultrasonic transducer array also includes the shape scanner;
This shape scanner, be used for before this flexible ultrasonic transducer array uses or among measure its surface configuration, obtain the surface shape information of this flexible ultrasonic transducer array;
And this surface shape information is used for controlling the input of the excitation signal of telecommunication of each ultrasonic transducer unit of this flexible ultrasonic transducer array and/or the collection of ultrasonic pulse-echo signal.
5. flexible ultrasonic transducer array as claimed in claim 4 is characterized in that, described shape scanner is the optic shape imager.
6. flexible ultrasonic transducer array as claimed in claim 1 is characterized in that, this flexible ultrasonic transducer array also includes quantity and is no less than 1 shape sensor;
This shape sensor is used for monitoring its surface configuration in real time in this flexible ultrasonic transducer array use, obtains the surface shape information of this flexible ultrasonic transducer array;
And this surface shape information is used for controlling the input of the excitation signal of telecommunication of each ultrasonic transducer unit of this flexible ultrasonic transducer array and/or the collection of ultrasonic pulse-echo signal.
7. flexible ultrasonic transducer array as claimed in claim 6 is characterized in that, described shape sensor is an electric transducer, or is optical sensor, or is sonac.
8. flexible ultrasonic transducer array as claimed in claim 6 is characterized in that described shape sensor is placed in the described flexible ultrasonic transducer array, or the surface, or the top.
9. a Vltrasonic device includes quantity and is no less than 2 ultrasonic transducer unit, ultrasonic transmitter, ultrasonic couplant, and microprocessor;
Described ultrasonic transducer unit links to each other with detected object by described ultrasonic couplant, is used for converting the excitation signal of telecommunication to ultrasonic wave;
Described ultrasonic transmitter links to each other with described ultrasonic transducer unit and described microprocessor respectively, is used to produce the excitation signal of telecommunication with supersonic frequency, and should encourage the signal of telecommunication to import described ultrasonic transducer unit;
Described microprocessor links to each other with described ultrasonic transmitter, is used to control parameter;
Described parameter includes, frequency of ultrasonic, intensity, dutycycle, launch time, and the input delay of described each ultrasonic transducer element excitation signal of telecommunication;
It is characterized in that this device also includes the flexible layer medium, described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format, constitutes flexible ultrasonic transducer array.
10. a Vltrasonic device includes quantity and is no less than 2 ultrasonic transducer unit, ultrasonic couplant, ultrasound emission receiver, microprocessor, and image iatron;
Described ultrasonic transducer unit links to each other with detected object by described ultrasonic couplant, is used for the excitation signal of telecommunication and ultrasonic wave are changed mutually;
Described ultrasound emission receiver, link to each other with described ultrasonic transducer unit and described microprocessor respectively, should encourage the signal of telecommunication to import described ultrasonic transducer unit after being used to produce the excitation signal of telecommunication, and after receiving the ultrasonic pulse-echo signal that feeds back by described ultrasonic transducer unit this ultrasound echo signal be imported described microprocessor with supersonic frequency;
Described microprocessor links to each other with described ultrasound emission receiver and described image iatron respectively, is used to control parameter and described ultrasonic pulse-echo signal is carried out data acquisition and processing;
Described image iatron links to each other with described microprocessor, is used to show described parameter and ultrasonic signal and image;
Described parameter includes, described frequency of ultrasonic, intensity, pulse width, transmission interval, and the input delay of described each ultrasonic transducer element excitation signal of telecommunication;
It is characterized in that this device also includes the flexible layer medium, described ultrasonic transducer unit is placed in this flexible layer medium or the surface with array format, constitutes flexible ultrasonic transducer array.
11., it is characterized in that this device also includes the shape scanner as claim 9 or 10 described Vltrasonic devices;
This shape scanner, be used for before starting working in described ultrasonic transducer unit or among the described flexible ultrasonic transducer array of scanning, obtain the surface shape information of this flexible ultrasonic transducer array, and send it to described microprocessor;
This microprocessor calculates the time delay of each ultrasonic transducer unit in this flexible ultrasonic transducer array according to this surface shape information, and sends it to described ultrasonic transmitter/ultrasound emission receiver;
This ultrasonic transmitter/ultrasound emission receiver is according to above-mentioned time delay, and the input of controlling described each ultrasonic transducer element excitation signal of telecommunication is or/and the collection of ultrasonic pulse-echo signal.
12. Vltrasonic device as claimed in claim 11 is characterized in that, described shape scanner is the optic shape imager.
13., it is characterized in that this device also includes quantity and is no less than 1 shape sensor as claim 9 or 10 described Vltrasonic devices;
This shape sensor is used for the surface configuration at the described flexible ultrasonic transducer array of the real-time monitoring of this device use, obtains the surface shape information of this flexible ultrasonic transducer array, and sends it to described microprocessor;
This microprocessor calculates the time delay of each ultrasonic transducer unit in this flexible ultrasonic transducer array according to this surface shape information, and sends it to described ultrasonic transmitter/ultrasound emission receiver;
This ultrasonic transmitter/ultrasound emission receiver is according to above-mentioned time delay, and the input of controlling described each ultrasonic transducer element excitation signal of telecommunication is or/and the collection of ultrasonic pulse-echo signal.
14. Vltrasonic device as claimed in claim 13 is characterized in that, described shape sensor is an electric transducer, or is optical sensor, or is sonac.
15. Vltrasonic device as claimed in claim 13 is characterized in that, described shape sensor is placed in the described flexible ultrasonic transducer array, or the surface, or the top.
CN2006101595522A 2006-09-27 2006-09-27 Flexible ultrasonic transducer array and applying device of the same CN101152646B (en)

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