CN205374286U - Hand -held type integration photoacoustic imaging detection device based on area array detector - Google Patents
Hand -held type integration photoacoustic imaging detection device based on area array detector Download PDFInfo
- Publication number
- CN205374286U CN205374286U CN201620064184.2U CN201620064184U CN205374286U CN 205374286 U CN205374286 U CN 205374286U CN 201620064184 U CN201620064184 U CN 201620064184U CN 205374286 U CN205374286 U CN 205374286U
- Authority
- CN
- China
- Prior art keywords
- hand
- array detector
- optoacoustic
- planar array
- subassembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a hand -held type integration photoacoustic imaging detection device based on area array detector, it relates to biomedical formation of image and medical instrument technical field. It contains optoacoustic excitation subassembly, hand -held type integration probe, the signal processing subassembly, signal acquisition subassembly and computer, optoacoustic excitation subassembly, hand -held type integration probe, the signal processing subassembly, signal acquisition subassembly and computer be circulating connection in proper order, and optoacoustic excitation subassembly is connected with the signal acquisition subassembly, the bottom of hand -held type integration probe is flexible, can be according to by the object that is detected and change the shape, can make things convenient for each position that detects the health in a flexible way, with the optoacoustic arouse with sensing collection in an organic whole, and encapsulate by metal casing, form hand -held type's integrated photoacoustic imaging detecting system, effectual miniaturization and the practical system architecture of having realized, the system has the advantages of simple operation, the radiation frequency improves, the acquisition time shortens, satisfy the requirement of clinical test.
Description
Technical field:
This utility model relates to a kind of hand-held integrated optical acoustic imaging detecting device based on planar array detector, belongs to biomedical imaging and technical field of medical instruments.
Background technology:
Photoacoustic imaging is a kind of new lossless medical imaging procedure of development in recent years, the advantage that it combines the high-penetration depth characteristic of the high contrast features of pure optical imagery and pure ultra sonic imaging, it is provided that the imaging of tissue of high-resolution and high-contrast.Although photoacoustic imaging technology has lot of advantages, but there is also some technical difficulties and hinder its application in Clinical detection and diagnosis.These difficulties mainly include several aspects: one, the restriction of data acquisition time: photoacoustic imaging technology mainly adopts single ultrasonic transducer to adopt the mode of rotation sweep or point by point scanning to gather photoacoustic signal in the world at present, and its imaging has higher picture contrast and resolution；But this several ways data acquisition time is long, it is generally required to dozens of minutes to several hours is not etc.；Two, the bandwidth of the probe of photoacoustic imaging, sensitivity, the isoparametric restriction of resolution；Due to currently without the complex array probe designed exclusively for photoacoustic imaging, the complex array probe currently used also is the multiple linear array probe for B ultrasonic imaging directly bought, when design with respect to the intensity of ultrasound emission, so present ultrasonic probe all adopts piezoceramic material, and acoustic design designs as transceiver transducer, cause the narrower bandwidth of probe, therefore resolution is not high；And photoacoustic imaging only receives ultrasonic ultrasonic without launching, it is possible to adopt the PVDF material of high bandwidth or composite piezoelectric ceramics to pop one's head according to the requirement design complex array receiving transducer；Three, imaging device is complicated, operation inconvenience: current photoacoustic imaging system substantially separates LASER Light Source, probe with ultrasonic coupling agent, adopts laser vertical radiation, pops one's head in and receives photoacoustic signal in side, adopts and use water as ultrasonic coupling agent；The pattern of this separation had both been not suitable for clinical manipulation, also made the position of detection be restricted.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of hand-held integrated optical acoustic imaging detecting device based on planar array detector.
This utility model is based on the hand-held integrated optical acoustic imaging detecting device of planar array detector, it comprises optoacoustic Drive assembly 1, hand-held integrated probe 2, signal processing component 3, signals collecting assembly 4 and computer 5, optoacoustic Drive assembly 1, hand-held integrated probe 2, signal processing component 3, signals collecting assembly 4 and computer 5 circulate connection successively, and optoacoustic Drive assembly 1 is connected with signals collecting assembly 4, described optoacoustic Drive assembly 1 is pulsed laser diode or semiconductor laser.
As preferably, the pulse laser that described semiconductor laser sends is irradiated to imaging region by integrated probe, and this light beam is at imaging region excitation beam signal.
As preferably, described hand-held integrated probe 2 is by optical fiber head 21, completely reflecting mirror 22, beam expanding lens 23, planar array detector 24, ultrasonic coupling liquid 25, transparent elastic film 26, metal shell 27 and wire 28 are constituted, the sealed bottom of metal shell 27 is provided with transparent elastic film 26, and the bottom of metal shell 27 is provided with planar array detector 24 and beam expanding lens 23, equipped with ultrasonic coupling liquid 25 between planar array detector 24 and beam expanding lens 23, ultrasonic coupling liquid 25 is sealed by transparent elastic film 26, planar array detector 24 be connected above wire 28, and the inner upper of one end insertion metal shell 27 of optical fiber head 21, two completely reflecting mirrors 22 are separately mounted in the upper inside wall of metal shell 27 and on side interior wall.
Described planar array detector 24 is made up of light inlet window 30 and array element detector 31, and in the middle part of described array element detector 31, it being provided with light inlet window 30, described array element detector 31 is made by composite, and array number is 208, mid frequency is 10MHz, and bandwidth is more than 80%.
As preferably, the angle of described completely reflecting mirror 22 and relative position design according to the principle making reflection laser beam just impinge upon probe light inlet window.
As preferably, described transparent elastic film 26 can change its shape according to checked object, breaks through the restriction to the position of detection of the conventional photoacoustic imaging system；
As preferably, the photoacoustic signal that described hand-held integrated probe 2 detects through signal processing component 3 signal is filtered with preposition amplification after, be transferred to signals collecting assembly 4；Signals collecting assembly 4 is mainly made up of multi-channel parallel acquisition system, and port number is 256；Signal, after A/D, is transferred to computer 6 by USB interface and stores, utilize MATLAB(Version8.0, Mathwork, USA) software processes, and then adopts space time delay summation algorithm to carry out image reconstruction.
The beneficial effects of the utility model: it can overcome the drawback of prior art, photo-acoustic excitation and sensing are integrated in one, and be packaged by metal shell, forming the integrated optical acoustic imaging detection system of hand-held, effectively achieve miniaturization and practical system structure, system is easy and simple to handle, the requirement of Clinical detection can be met well, the bottom of its integrated probe is flexible, it is possible to change shape according to detected object, it is possible to detect each position of health easily and flexibly.A burst of for face sensor is combined with multi-channel parallel acquisition system, and utilizes Labview virtual controlling software to be programmed, utilize linear projection's algorithm or amplitude maximum projection algorithm to carry out image reconstruction, show in real time over the display.It adopts cheap semiconductor laser tube or semiconductor light fibre laser to replace great-power solid laser, and radiation frequency improves, and acquisition time shortens, and cost is relatively low, and integration degree is high, it is easy to application.
Accompanying drawing illustrates:
For ease of illustrating, this utility model is embodied as and accompanying drawing is described in detail by following.
Fig. 1 is the block diagram of the hand-held integrated optical acoustic imaging detecting device in this utility model based on planar array detector；
Fig. 2 is hand-held integrated probe schematic diagram in this utility model；
Fig. 3 is planar array detector structure chart in this utility model；
Fig. 4 is the photoacoustic imaging result schematic diagram adopting this device to detect in embodiment.
Detailed description of the invention:
As Figure 1-3, this detailed description of the invention is by the following technical solutions: it comprises optoacoustic Drive assembly 1, hand-held integrated probe 2, signal processing component 3, signals collecting assembly 4 and computer 5, optoacoustic Drive assembly 1, hand-held integrated probe 2, signal processing component 3, signals collecting assembly 4 and computer 5 circulate connection successively, and optoacoustic Drive assembly 1 is connected with signals collecting assembly 4, described optoacoustic Drive assembly 1 is pulsed laser diode or semiconductor laser.
As preferably, the pulse laser that described semiconductor laser sends is irradiated to imaging region by integrated probe, and this light beam is at imaging region excitation beam signal.
As preferably, described hand-held integrated probe 2 is made up of optical fiber head 21, completely reflecting mirror 22, beam expanding lens 23, planar array detector 24, ultrasonic coupling liquid 25, transparent elastic film 26, metal shell 27 and wire 28；The sealed bottom of metal shell 27 is provided with transparent elastic film 26, and the bottom of metal shell 27 is provided with planar array detector 24 and beam expanding lens 23, equipped with ultrasonic coupling liquid 25 between planar array detector 24 and beam expanding lens 23, ultrasonic coupling liquid 25 is sealed by transparent elastic film 26, planar array detector 24 be connected above wire 28, and the inner upper of one end insertion metal shell 27 of optical fiber head 21, two completely reflecting mirrors 22 are separately mounted in the upper inside wall of metal shell 27 and on side interior wall.
Described planar array detector 24 is made up of light inlet window 30 and array element detector 31, and in the middle part of described array element detector 31, it being provided with light inlet window 30, described array element detector 31 is made by composite, and array number is 208, mid frequency is 10MHz, and bandwidth is more than 80%.
As preferably, the angle of described completely reflecting mirror 22 and relative position design according to the principle making reflection laser beam just impinge upon probe light inlet window.
As preferably, described transparent elastic film 26 can change its shape according to checked object, breaks through the restriction to the position of detection of the conventional photoacoustic imaging system；
As preferably, the photoacoustic signal that described hand-held integrated probe 2 detects through signal processing component 3 signal is filtered with preposition amplification after, be transferred to signals collecting assembly 4；Signals collecting assembly 4 is mainly made up of multi-channel parallel acquisition system, and port number is 256；Signal, after A/D, is transferred to computer 6 by USB interface and stores, utilize MATLAB(Version8.0, Mathwork, USA) software processes, and then adopts space time delay summation algorithm to carry out image reconstruction.
The operation principle of this detailed description of the invention is: (1) adopts the hand-held integrated probe 2 based on planar array detector encourage and detect photoacoustic signal；
(2) adopt multi-channel parallel acquisition system to gather the photoacoustic signal that each array element of planar array detector 24 detects simultaneously, and be stored in computer 5；
(3) photoacoustic signal gathered is carried out processing acquisition biological tissue by application signal processing software 3
Optoacoustic two dimensional image, and show in real time over the display.
(4) the application data process software photoacoustic data to being stored on computer 5 carries out later stage process, it is thus achieved that the three-dimensional reconstruction image of biological tissue.
The back lining materials of further described planar array detector is the flexible material that other some compositions of the doping such as epoxy resin are constituted, planar array detector can change shape according to detected object, such that it is able to detect the different parts of health neatly, in described step (3), utilize Labview virtual instrument control software design to be programmed, adopt linear projection's algorithm or amplitude maximum algorithm directly to show over the display；In described step (4), space phase-control focusing algorithm or space time delay summation algorithm is adopted to carry out image reconstruction by software languages such as Matlab, C, it is thus achieved that the three-dimensional reconstruction image of biological tissue.
Embodiment: with reference to Fig. 4, in order to verify the two-dimensional imaging ability of this system, buy fresh Hepar Sus domestica and chicken-breasted from the market, cut the Hepar Sus domestica of a fritter, diameter is about 4mm, then Hepar Sus domestica is embedded in chicken-breasted, adopts hand-held integrated probe 2 to be detected, the photoacoustic signal gathered is carried out processing the optoacoustic two dimensional image obtaining pig liver by application signal processing software 3, it is thus achieved that the two-dimensional opto-acoustic image of the Hepar Sus domestica of reconstruction also shows over the display in real time.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (4)
- null1. the hand-held integrated optical acoustic imaging detecting device based on planar array detector，It is characterized in that: it comprises optoacoustic Drive assembly (1)、Hand-held integrated probe (2)、Signal processing component (3)、Signals collecting assembly (4) and computer (5),Optoacoustic Drive assembly (1)、Hand-held integrated probe (2)、Signal processing component (3)、Signals collecting assembly (4) and computer (5) circulate connection successively,And optoacoustic Drive assembly (1) is connected with signals collecting assembly (4)，Described optoacoustic Drive assembly (1) is pulsed laser diode,Described hand-held integrated probe (2) is by optical fiber head (21)、Completely reflecting mirror (22)、Beam expanding lens (23)、Planar array detector (24)、Ultrasonic coupling liquid (25)、Transparent elastic film (26)、Metal shell (27) and wire (28) are constituted，The sealed bottom of metal shell (27) is provided with transparent elastic film (26)，And the bottom of metal shell (27) is provided with planar array detector (24) and beam expanding lens (23)，Equipped with ultrasonic coupling liquid (25) between planar array detector (24) and beam expanding lens (23)，Ultrasonic coupling liquid (25) is sealed by transparent elastic film (26)，Planar array detector (24) be connected above wire (28),And the inner upper of one end insertion metal shell (27) of optical fiber head (21),Two completely reflecting mirrors (22) are separately mounted in the upper inside wall of metal shell (27) and on side interior wall.
- 2. a kind of hand-held integrated optical acoustic imaging detecting device based on planar array detector described in claim 1, it is characterised in that: described optoacoustic Drive assembly (1) is semiconductor laser.
- 3. a kind of hand-held integrated optical acoustic imaging detecting device based on planar array detector described in claim 1, described planar array detector (24) is made up of light inlet window (30) and array element detector (31), and described array element detector (31) middle part is provided with light inlet window (30), described array element detector (31) is made by composite, array number is 208, mid frequency is 10MHz, and bandwidth is more than 80%.
- 4. a kind of hand-held integrated optical acoustic imaging detecting device based on planar array detector described in claim 1, the angle of described completely reflecting mirror (22) and relative position design according to the principle making reflection laser beam just impinge upon probe light inlet window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064184.2U CN205374286U (en) | 2016-01-22 | 2016-01-22 | Hand -held type integration photoacoustic imaging detection device based on area array detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064184.2U CN205374286U (en) | 2016-01-22 | 2016-01-22 | Hand -held type integration photoacoustic imaging detection device based on area array detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205374286U true CN205374286U (en) | 2016-07-06 |
Family
ID=56274246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620064184.2U Expired - Fee Related CN205374286U (en) | 2016-01-22 | 2016-01-22 | Hand -held type integration photoacoustic imaging detection device based on area array detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205374286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175691A (en) * | 2016-08-26 | 2016-12-07 | 凌斌 | Flexible substrates MEMS curved array photoacoustic imaging system |
| CN115919267A (en) * | 2023-02-07 | 2023-04-07 | 北京清湃科技有限公司 | Coupling pad for photoacoustic ultrasound |
-
2016
- 2016-01-22 CN CN201620064184.2U patent/CN205374286U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175691A (en) * | 2016-08-26 | 2016-12-07 | 凌斌 | Flexible substrates MEMS curved array photoacoustic imaging system |
| CN106175691B (en) * | 2016-08-26 | 2022-11-08 | 凌斌 | Flexible substrate MEMS device curved surface array photoacoustic imaging system |
| CN115919267A (en) * | 2023-02-07 | 2023-04-07 | 北京清湃科技有限公司 | Coupling pad for photoacoustic ultrasound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10709419B2 (en) | Dual modality imaging system for coregistered functional and anatomical mapping | |
| JP6174658B2 (en) | Hand-held device and method for tomographic photoacoustic imaging of an object | |
| CA2861089C (en) | Dual modality imaging system for coregistered functional and anatomical mapping | |
| RU2648170C1 (en) | Device for data collection with the help of acoustic waves | |
| CN101912250B (en) | Intravascular photoacoustic and ultrasonic double-mode imaging endoscope device and imaging method thereof | |
| CN101828928B (en) | Three-dimensional optoacoustic mammary gland or brain non-destructive imaging system | |
| US20130301380A1 (en) | Method for dual modality optoacoustic imaging | |
| CN105769128A (en) | Integrated opto-acoustic, ultrasonic and opto-acoustic elastic endoscopic imaging device and method thereof | |
| CN201624671U (en) | Biological tissue three-dimensional photoacoustic imaging device | |
| CN101828902B (en) | Photoacoustic sensor for breast or head three-dimensional medical diagnosis | |
| US10582910B2 (en) | Information acquisition apparatus and information acquisition method | |
| CN106983494B (en) | Multi-modality imaging system and imaging method thereof | |
| JP5911196B2 (en) | Photoacoustic imaging device | |
| US20130190594A1 (en) | Scanning Optoacoustic Imaging System with High Resolution and Improved Signal Collection Efficiency | |
| CN106419803A (en) | Intravascular opto-acoustic absorption, elasticity, viscosity multimode imaging integrated endoscopy and imaging method | |
| CN108670177A (en) | A kind of Intraductal lesion imaging probe | |
| US20220133273A1 (en) | Transparent ultrasound transducers for photoacoustic imaging | |
| CN205374286U (en) | Hand -held type integration photoacoustic imaging detection device based on area array detector | |
| US10436706B2 (en) | Information processing apparatus, information processing method, and storage medium | |
| CN201624672U (en) | Photoacoustic sensor for 3D medical diagnosis of biological tissue | |
| CN103969192A (en) | Photoacoustic endoscopic type A scanning imaging system | |
| KR20180062393A (en) | Display control apparatus, display control method, and storage medium | |
| CN217793013U (en) | Ear pathological change and auditory canal contour detection appearance | |
| JP7077384B2 (en) | Subject information acquisition device | |
| US10438382B2 (en) | Image processing apparatus and image processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20170122 |