CN106264604B - Full-scanning photoacoustic dual-mode endoscope probe - Google Patents
Full-scanning photoacoustic dual-mode endoscope probe Download PDFInfo
- Publication number
- CN106264604B CN106264604B CN201610619241.3A CN201610619241A CN106264604B CN 106264604 B CN106264604 B CN 106264604B CN 201610619241 A CN201610619241 A CN 201610619241A CN 106264604 B CN106264604 B CN 106264604B
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- ultrasonic transducer
- conical surface
- concave surface
- reflecting
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4416—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to combined acquisition of different diagnostic modalities, e.g. combination of ultrasound and X-ray acquisitions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0093—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
- A61B5/0095—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy by applying light and detecting acoustic waves, i.e. photoacoustic measurements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
Abstract
The invention discloses a full-scanning photoacoustic dual-mode endoscope probe, which comprises: the ultrasonic transducer is sleeved with a tube shell on the axial outer side and is rotatably arranged on the inner side wall of the tube shell; the emergent ray of the incident optical fiber axially penetrates through the ultrasonic transducer to irradiate the spherical center of the hemispherical concave surface; the conical reflector is axially and rotatably arranged at the spherical center part of the hemispherical concave surface, and the incident light of the incident optical fiber is reflected by the reflecting conical surface and then vertically emitted from the side wall of the endoscope to the part to be measured; the ultrasonic testing device comprises a hemispherical inner concave surface, wherein an ultrasonic vibration element is arranged on the inner concave surface at the outer side of the center of the hemispherical inner concave surface, the ultrasonic vibration element and a conical surface reflector synchronously rotate, and ultrasonic waves emitted by the ultrasonic vibration element are obliquely emitted from the side wall of the endoscope to the part to be tested after being reflected by the reflecting conical surface. The invention solves the technical problem that the imaging contrast and the imaging depth of the endoscope cannot be obtained simultaneously.
Description
Technical Field
The invention relates to the technical field of biomedical equipment, in particular to a full-scanning photoacoustic dual-mode endoscope probe.
Background
The current commonly used optical endoscope is mainly an optical, mechanical and electrical integrated NDT instrument, which is divided into three series products: the first, the hard endoscope series; the second category, the fiberscope family; the third category, the electronic video endoscope family. The working principle of the hard endoscope series is to transmit images by using an image transfer lens optical technology and provide light transmission illumination by using an optical fiber. The working principle of the fiber endoscope series is that high-quality rhyme image fibers transmit images and the images are directly observed through an ocular lens. The electronic video endoscope series is manufactured by using a microminiature charge coupled device (CXD) technology. The basic principle of the three types of endoscope technologies is to acquire a detection image by using optical scattering or reflection signals, and the three types of endoscope technologies have the defect of shallow penetration depth (about mm level) due to large influence of medium scattering.
Therefore, ultrasonic endoscopes and photoacoustic endoscopes have been developed in the prior art, and the penetration depth of ultrasonic endoscopic imaging into tissues can reach more than 30mm, which reflects acoustic impedance parameters of the absorber. Photoacoustic imaging, which is a new imaging method developed in recent years, reflects the light absorption parameters of an absorber. However, the ultrasound endoscope has defects in contrast and functionality in the imaging technology, and meanwhile, the photoacoustic endoscope has insufficient detection depth and imaging resolution, so that an endoscope integrating the functions of the ultrasound endoscope and the photoacoustic endoscope is needed. The patent application number is 201010187650.3, the patent name is an intravascular photoacoustic and ultrasonic dual-mode imaging endoscope device and an imaging method thereof, and discloses an endoscope with light collecting sound detection and ultrasonic detection functions, but the probe of the endoscope is large in size and small in detection area, so that the detection precision is influenced.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a full-scanning photoacoustic dual-mode endoscope probe, which has two detection modes of ultrasonic detection and photoacoustic detection, effectively forms advantage complementation and solves the technical problem that the imaging contrast and the imaging depth of an endoscope cannot be compatible.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a full-scan photoacoustic dual-mode endoscope probe, comprising:
the ultrasonic probe comprises an ultrasonic transducer, a probe body and a probe head, wherein the inner side end of the ultrasonic transducer is provided with a hemispherical concave surface, the hemispherical concave surface is configured as an ultrasonic probe receiving surface, a tube shell is sleeved on the axial outer side of the ultrasonic transducer, and the ultrasonic transducer is rotatably arranged on the inner side wall of the tube shell;
the emergent ray of the incident optical fiber axially penetrates through the ultrasonic transducer to irradiate the spherical center of the hemispherical concave surface;
the conical reflector is axially and rotatably arranged at the spherical center part of the hemispherical concave surface, and the incident light of the incident optical fiber is reflected by the reflecting conical surface and then vertically emitted from the side wall of the endoscope to the part to be measured;
the ultrasonic testing device comprises a hemispherical concave surface, wherein an ultrasonic vibration element is arranged on the concave surface at the outer side of the center of the hemispherical concave surface, and ultrasonic waves emitted by the ultrasonic vibration element are obliquely emitted from the side wall of the endoscope to the part to be tested after being reflected by the reflecting conical surface.
Preferably, the emergent light of the incident optical fiber penetrates through the ultrasonic transducer and is incident on the reflecting conical surface in a direction forming an included angle of 45 degrees with the reflecting conical surface.
Preferably, the conical surface reflector is arranged in the tube shell, the axial direction of the tube shell and the reflecting conical surface form an included angle of 45 degrees, an annular transparent window is arranged on the tube shell at the periphery of the center of the reflecting conical surface, and an outer tube capable of transmitting photoacoustic signals is sleeved outside the tube shell.
Preferably, the front end of the tube shell is provided with an arc part, a magnetic moment coupling motor is arranged in the arc part, and an output shaft of the magnetic moment coupling motor is connected with the end face of the conical reflector.
Preferably, the magnetic moment coupling motor is arranged close to the transparent window, the outer end of the ultrasonic transducer extends to the transparent window, a driving part which controls the rotation of the magnetic moment coupling motor by generating magnetic moment change is arranged at one end part of the ultrasonic transducer close to the transparent window, the driving part is fixedly arranged on the tube shell, and the driving part is electrically connected with the signal acquisition assembly.
Preferably, the transmitting end of the ultrasonic vibration element is aligned to the reflecting conical surface, and an included angle between the ultrasonic vibration element and the center of the hemispherical concave surface through the reflecting conical surface is smaller than 15 degrees.
Preferably, the outer tube is a medical vinyl chloride tube, and the incident optical fiber is a multimode optical fiber with a diameter of 800 um.
Preferably, the exit direction of the incident optical fiber and the axial rotation direction of the conical reflector are on the same axis, and the conical surface of the conical reflector is plated with a high reflection film.
Preferably, the outer side end of the ultrasonic transducer is rotatably connected with a driving mechanism, the driving mechanism is fixed on the inner side wall of the tube shell, a circumferential gear belt is arranged on the side wall of the ultrasonic transducer, and an output shaft of the driving mechanism is rotatably connected to the gear belt.
Preferably, an annular step is arranged on the tube shell, the ultrasonic transducer rotates back and forth on the annular step by 360 degrees, a limit switch used for limiting the ultrasonic transducer to rotate over is arranged on the gear belt, and the conical reflector and the ultrasonic transducer rotate synchronously.
The invention at least comprises the following beneficial effects:
1. the endoscope has three working modes of ultrasonic detection, photoacoustic detection and simultaneous ultrasonic and photoacoustic detection, can be freely selected according to the requirements of a detection environment, has more detection mode selectivity and obviously improves the detection quality;
2. the advantages of ultrasonic detection and photoacoustic detection are effectively complemented, so that the detection depth is larger, and the imaging contrast and the imaging precision are higher;
3. the ultrasonic transducer is provided with a hemispherical detection surface which envelopes a reflection path of an ultrasonic signal, so that the receiving effectiveness of a feedback signal is improved, and the detection precision is improved;
4. the ultrasonic transducer is arranged at the rear end of the conical reflector, and meanwhile, the incident optical fiber penetrates through the ultrasonic transducer, so that the size of the probe is reduced;
5. only one ultrasonic vibration element is used, so that the ultrasonic vibration element and the conical surface reflector synchronously rotate, and the accurate synchronous detection of the position is realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of an endoscope probe according to the present invention when a probe signal is emitted from the upper end;
FIG. 2 is a schematic view of the structure of the endoscope probe according to the present invention when the probe signal is emitted from the lower end;
FIG. 3 is a front view of an ultrasound transducer;
FIG. 4 is a rear view of the ultrasonic transducer;
in the above drawings: 1. an arc-shaped portion; 2. an incident optical fiber; 3. an ultrasonic transducer; 31. a perspective window; 32. an ultrasonic vibration element; 33. a gear belt; 34. a drive mechanism; 4. a pipe shell; 41. an annular step; 5. a magnetic moment coupling motor; 6. a conical reflector; 7. an outer tube; 8. a transparent window; 9. a drive section; 10. the site to be measured.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 4, the present invention provides a full-scan photoacoustic dual-mode endoscope probe, comprising:
an ultrasonic transducer 3, one end of which is provided with a hemispherical concave surface configured as an ultrasonic detection receiving surface; as shown in the left concave surface in fig. 1, in this embodiment, the ultrasonic transducer is a cylindrical structure, an inner concave spherical surface with a radius consistent with the radius of the cylinder is disposed on one axial side of the cylinder, the hemispherical inner concave surface is fully distributed with ultrasonic detection units for detecting, receiving and detecting ultrasonic signals fed back from a part to be detected, and a transparent window 31 is disposed in the center of the hemispherical inner concave surface, the transparent window is embedded in the ultrasonic transducer, and the outer surface of the transparent window is flush with the hemispherical concave surface; a pipe shell 4 is sleeved on the axial outer side of the ultrasonic transducer, and the ultrasonic transducer is rotatably arranged on the inner side wall of the pipe shell in 360 degrees;
the incident optical fiber 2, its incident end couples to excitation light source generator, the said ultrasonic transducer 3 is equipped with the through hole communicated with said perspective window axially, the exit end of the said incident optical fiber is set up in the said through hole, the perspective window 31 is set up in one end of inboard of the said through hole sealingly, the exit port of the incident optical fiber aims at the perspective window outwards, thus can penetrate the light source that the incident optical fiber exits and project outwards through the perspective window, the emergent ray of the said incident optical fiber aims at the spherical center of the said hemispherical concave surface through the said perspective window;
and the conical reflector 6 is provided with a reflecting conical surface axially and rotatably arranged at the spherical center part of the hemispherical concave surface, emergent light of the incident optical fiber penetrates through the perspective window and is incident on the reflecting conical surface in a direction forming an included angle of 45 degrees with the reflecting conical surface, and the incident light of the incident optical fiber is reflected by the reflecting conical surface and then vertically emergent from the side wall of the endoscope at the part to be measured 10.
As shown by the dotted lines in fig. 1 and 2, after the incident light excites an ultrasonic signal at the to-be-detected portion, the ultrasonic signal is incident on the conical reflector in the probe, and after being reflected, the ultrasonic signal is transmitted to the ultrasonic detection receiving surface to generate an electric signal, so that an image of the to-be-detected portion is restored and generated, thereby completing the detection in the photoacoustic mode.
The tube comprises a tube shell, a conical surface reflector, a light source and a light source, wherein the conical surface reflector is arranged in the tube shell, the axial direction of the tube shell and the reflecting conical surface form an included angle of 45 degrees, an annular transparent window 8 is arranged on the tube shell at the center periphery of the reflecting conical surface, an outer tube 7 capable of transmitting photoacoustic signals is sleeved outside the tube shell, the light source is incident to the reflecting conical surface and has a certain angle to reflect, sequentially penetrates through the transparent window and the outer tube to irradiate on a part to be measured.
Wherein, the concave surface outside the center of the hemispherical concave surface is provided with an ultrasonic vibration element 32, the ultrasonic wave emitted by the ultrasonic vibration element is reflected by the reflecting conical surface and then obliquely emitted from the side wall of the endoscope to the part to be measured, the ultrasonic vibration element and the conical surface reflector synchronously rotate, as shown by the straight line in fig. 1 and 2, the transmitting end of the ultrasonic vibration element 32 is aligned with the reflecting conical surface, and the included angle between the ultrasonic vibration element and the center of the hemispherical concave surface through the reflecting conical surface is less than 15 degrees, in this embodiment, the included angle is 7 degrees, so that after the ultrasonic wave emitted by the ultrasonic vibration element is obliquely incident on the conical surface reflector, the reflected wave can be obliquely transmitted from the transparent window to the part to be measured, if the included angle between the ultrasonic vibration element and the center of the hemispherical concave surface through the reflecting conical surface is too large, the reflected wave on the reflecting mirror can not be transmitted from the transparent window outwards, leading to failure of ultrasonic detection; after the ultrasonic detection signal is transmitted to the part to be detected and generates a feedback ultrasonic signal, the feedback ultrasonic signal is transmitted to the reflecting conical surface through the transparent window in an inclined mode, and is transmitted to the ultrasonic detection receiving surface in a reflecting mode to generate an electric signal, and therefore an image of the part to be detected is generated through reduction, and detection under an ultrasonic detection mode is completed.
The front end of the tube shell is provided with an arc part 1 which is convenient for the movement of an endoscope probe and reduces the resistance and the friction with organs, a magnetic moment coupling motor 5 is arranged in the arc part, the output shaft of the magnetic moment coupling motor is connected with the end surface of the conical surface reflector and is arranged close to the transparent window, one end part of the ultrasonic transducer close to the transparent window is provided with a driving part 9 which controls the rotation of the magnetic moment coupling motor by generating magnetic moment change, the driving part is fixedly arranged on the tube shell and is electrically connected with the signal acquisition assembly, the driving part controls the rotation of the magnetic moment coupling motor according to an input signal to drive the conical surface reflector to rotate, incident light is incident to a part to be tested in a circle-by-circle scanning mode to excite ultrasonic waves, and no lead is needed at the position of the transparent window 8 due to the adoption of the coupling motor, the visible angle is not blocked by the wire, so the visible angle (360 degrees) of the transparent window 8 is increased by adopting the magnetic moment coupling motor. As shown in fig. 1, a probe signal is incident on the portion to be measured from the upper end of the probe, and when the reflecting cone surface is rotated by 180 °, as shown in fig. 2, a probe signal is incident on the portion to be measured from the lower end of the probe.
In one embodiment, the emergent light of the incident optical fiber penetrates through the ultrasonic transducer and is incident on the reflecting conical surface in a direction forming an included angle of 45 degrees with the reflecting conical surface, and the emergent light is reflected by the reflecting conical surface and then irradiates on the part to be measured.
In the above technical scheme, the outer tube is a medical vinyl chloride tube, and the incident optical fiber is a multimode optical fiber with a diameter of 800 um.
In the technical scheme, the emergent direction of the incident optical fiber and the axial rotation direction of the conical reflector are on the same axis, the conical surface of the conical reflector is plated with a high-reflection film to increase reflectivity, the incident direction of the incident light is coaxial with the output shaft of the magnetic moment coupling motor, the incident light and the conical surface form an included angle of 45 degrees all the time along with the continuous rotation of the conical reflector, and the reflected light is perpendicular to the tube shell and is emitted outwards to irradiate on a part to be measured.
As shown in fig. 3, a dashed circle in the figure is a rotation path of the ultrasonic transducer when the ultrasonic transducer rotates, the ultrasonic transducer and the conical surface reflector rotate synchronously, specifically, an outer side end of the ultrasonic transducer is rotationally connected with a driving mechanism 34, the driving mechanism 34 is fixed on an inner side wall of the tube shell 4, an annular step 41 is arranged on the tube shell, the ultrasonic transducer rotates back and forth on the annular step for 360 degrees, the driving mechanism 34 can be selected as a synchronous motor, the synchronous motor and a magnetic moment coupling motor drive synchronously, that is, the conical surface reflector and the ultrasonic transducer rotate synchronously, a relative position between the ultrasonic transducer and the reflecting conical surface is always unchanged, a circumferential gear belt 33 is arranged on a side wall of the ultrasonic transducer, as shown in fig. 4, an output shaft of the driving mechanism is rotationally connected to the gear belt 33, therefore, the driving mechanism drives the ultrasonic transducer to rotate, and meanwhile, the gear belt 33 is provided with a limit switch for limiting the ultrasonic transducer to rotate excessively, so that the ultrasonic transducer is prevented from rotating for 360 degrees in the same direction, and the wiring in the probe is disordered.
The specific working mode is as follows:
in the photoacoustic detection mode, the adopted light source is laser, when a wide-beam short-pulse laser irradiates biological tissues, an absorber positioned in the tissues absorbs pulse light energy, so that the temperature rises and expands to generate ultrasonic waves, the laser penetrates through the transparent window and is incident on the reflecting conical surface in a direction forming an included angle of 45 degrees with the reflecting conical surface, the laser is vertically emitted to a part to be detected from the transparent window after being reflected by 90 degrees, the ultrasonic waves are excited, ultrasonic signals sequentially penetrate through the outer tube and the transparent window, irradiate on the reflecting conical surface and are reflected to the detection surface by 90 degrees, the ultrasonic transducer receives ultrasonic feedback signals to generate electric signals, and the electric signals are reduced to generate images of the part to be detected, so that the detection in the ultrasonic detection mode is completed. With the continuous rotation of the conical reflector, the 360-degree imaging of the part to be measured is realized.
In the ultrasonic detection mode, the conical surface reflecting mirror and the ultrasonic vibration element synchronously rotate, meanwhile, the ultrasonic vibration element sends an ultrasonic signal and obliquely irradiates the reflecting conical surface, so that after the ultrasonic wave sent by the ultrasonic vibration element obliquely irradiates the conical surface reflecting mirror, the reflected wave energy is obliquely and outwards transmitted to the part to be detected from the transparent window, the ultrasonic detection signal is transmitted to the part to be detected and generates a feedback ultrasonic signal, the feedback ultrasonic signal is obliquely transmitted to the reflecting conical surface through the transparent window, and is reflected and transmitted to the ultrasonic detection receiving surface on the reflecting tracing surface to generate an electric signal, and the electric signal is restored to generate an image of the part to be detected, so that the detection in the ultrasonic detection mode is completed. Along with the continuous rotation of the conical reflector, the excited ultrasonic vibration element is correspondingly changed, so that the 360-degree detection of the part to be detected is completed.
In the ultrasonic and photoacoustic simultaneous detection mode, a laser signal and an ultrasonic excitation signal of an ultrasonic vibration element are simultaneously emitted, the laser signal and the ultrasonic excitation signal are transmitted to a part to be detected according to respective propagation paths, the ultrasonic signal of the part to be detected is excited, the ultrasonic signal is transmitted to an ultrasonic detection receiving surface according to respective feedback paths, a corresponding ultrasonic feedback signal is generated, an electric signal is generated, an image of the part to be detected is generated by restoring, and the image is continuously rotated along with the conical surface reflector so as to realize 360-degree imaging of the part to be detected.
From the above, the endoscope of the present invention has three working modes of ultrasonic detection, photoacoustic detection and simultaneous detection of ultrasonic and photoacoustic, and can be freely selected according to the needs of the detection environment, so that the detection mode has more selectivity, and the detection quality is significantly improved; in addition, the ultrasonic detection and the photoacoustic detection effectively form advantage complementation, so that the detection depth is larger, and the imaging contrast and the imaging precision are higher; meanwhile, a hemispherical detection surface is arranged on the ultrasonic transducer and envelops a reflection path of an ultrasonic signal, so that the receiving effectiveness of a feedback signal is improved, and the detection precision is improved; furthermore, the ultrasonic transducer is arranged at the rear end of the conical reflector, and the incident optical fiber penetrates through the ultrasonic transducer, so that the size of the probe is reduced. The invention can realize high-resolution and high-contrast functional imaging of a larger depth of the tissue body, and only uses one ultrasonic vibration element to enable the ultrasonic vibration element and the conical reflector to synchronously rotate, thereby realizing the synchronous detection with accurate position.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. A full-scan photoacoustic dual-mode endoscope probe, comprising:
the ultrasonic probe comprises an ultrasonic transducer, a probe body and a probe head, wherein the inner side end of the ultrasonic transducer is provided with a hemispherical concave surface, the hemispherical concave surface is configured as an ultrasonic probe receiving surface, a tube shell is sleeved on the axial outer side of the ultrasonic transducer, and the ultrasonic transducer is rotatably arranged on the inner side wall of the tube shell;
the emergent ray of the incident optical fiber axially penetrates through the ultrasonic transducer to irradiate the spherical center of the hemispherical concave surface;
the conical reflector is axially and rotatably arranged at the spherical center part of the hemispherical concave surface, and emergent light of the incident optical fiber is reflected by the reflecting conical surface and then vertically emitted from the side wall of the endoscope to the part to be measured;
an ultrasonic vibration element is arranged on the inner concave surface at the outer side of the center of the hemispherical inner concave surface, the ultrasonic vibration element and the conical surface reflector rotate synchronously, and ultrasonic waves emitted by the ultrasonic vibration element are reflected by the reflecting conical surface and then obliquely emitted from the side wall of the endoscope to the part to be measured;
the outer side end of the ultrasonic transducer is rotationally connected with a driving mechanism, the driving mechanism is fixed on the inner side wall of the tube shell, a circumferential gear belt is arranged on the side wall of the ultrasonic transducer, and an output shaft of the driving mechanism is rotationally connected to the gear belt; an annular step is arranged on the tube shell, the ultrasonic transducer rotates back and forth on the annular step for 360 degrees, a limit switch used for limiting the ultrasonic transducer to rotate over is arranged on the gear belt, and the conical reflector and the ultrasonic transducer rotate synchronously; the transmitting end of the ultrasonic vibration element is aligned to the reflecting conical surface, and the included angle between the ultrasonic vibration element and the center of the hemispherical concave surface through the reflecting conical surface is smaller than 15 degrees.
2. The full-scanning photoacoustic dual-mode endoscope probe of claim 1, wherein the emergent ray of the incident optical fiber is transmitted through the ultrasound transducer and incident on the reflecting cone at an angle of 45 ° to the reflecting cone.
3. The full-scanning photoacoustic dual-mode endoscope probe according to claim 2, wherein said conical reflector is disposed inside said tube shell, the axial direction of said tube shell forms an included angle of 45 ° with said reflecting conical surface, said tube shell at the periphery of the center of said reflecting conical surface is provided with an annular transparent window, and said tube shell is externally sleeved with an outer tube capable of transmitting photoacoustic signals.
4. The full-scanning photoacoustic dual-mode endoscope probe according to claim 3, wherein an arc portion is disposed at the front end of the tube housing, a magnetic moment coupling motor is disposed in the arc portion, and an output shaft of the magnetic moment coupling motor is connected with the end face of the conical reflector.
5. The full-scanning photoacoustic dual-mode endoscope probe according to claim 4, wherein the magnetic moment coupling motor is disposed close to the transparent window, the outer end of the ultrasonic transducer extends to the transparent window, a driving part for controlling the rotation of the magnetic moment coupling motor by generating magnetic moment variation is disposed at an end of the ultrasonic transducer close to the transparent window, the driving part is fixedly disposed on the tube housing, and the driving part is electrically connected to the signal acquisition assembly.
6. The full-scanning photoacoustic dual-mode endoscope probe according to claim 5, wherein said external tube is a medical vinyl chloride tube, and said incident optical fiber is a multimode optical fiber with a diameter of 800 μm.
7. The full-scanning photoacoustic dual-mode endoscope probe according to claim 6, wherein the exit direction of the incident optical fiber and the axial rotation direction of the conical reflector are on the same axis, and the conical surface of the conical reflector is coated with a highly reflective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619241.3A CN106264604B (en) | 2016-08-01 | 2016-08-01 | Full-scanning photoacoustic dual-mode endoscope probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619241.3A CN106264604B (en) | 2016-08-01 | 2016-08-01 | Full-scanning photoacoustic dual-mode endoscope probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106264604A CN106264604A (en) | 2017-01-04 |
| CN106264604B true CN106264604B (en) | 2019-12-31 |
Family
ID=57663660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610619241.3A Active CN106264604B (en) | 2016-08-01 | 2016-08-01 | Full-scanning photoacoustic dual-mode endoscope probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106264604B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174208A (en) * | 2017-05-24 | 2017-09-19 | 哈尔滨工业大学（威海） | A kind of photoacoustic imaging system and method suitable for peripheral vascular imaging |
| CN107050673B (en) * | 2017-06-06 | 2019-01-29 | 华中科技大学 | Focus photic thermoplastic material and preparation method thereof and the photic ultrasonic probe of endoscopic |
| CN109497952B (en) * | 2018-12-24 | 2021-03-26 | 同济大学 | Photoacoustic and ultrasonic bimodal transrectal endoscopic imaging device based on embedded LED |
| CN111134591B (en) * | 2019-12-27 | 2022-09-06 | 华南师范大学 | Photoacoustic microscopic imaging pen and imaging method |
| CN112493997B (en) * | 2020-11-30 | 2023-03-31 | 中国科学院深圳先进技术研究院 | Photoacoustic endoscopic imaging device and photoacoustic endoscopic imaging method based on same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912250A (en) * | 2010-05-24 | 2010-12-15 | 华南师范大学 | Intravascular photoacoustic and ultrasonic double-mode imaging endoscope device and imaging method thereof |
| CN103976703A (en) * | 2014-05-27 | 2014-08-13 | 江西科技师范大学 | Optoacoustic and ultrasonic bimodal endoscope imaging system and imaging method |
| CN203776938U (en) * | 2014-04-08 | 2014-08-20 | 马晓鹏 | Photoacoustic imaging endoscope device |
| CN105011906A (en) * | 2015-06-11 | 2015-11-04 | 北京大学 | Photoacoustic computed tomography system combined with slip ring and tomographic method thereof |
| CN105030281A (en) * | 2015-08-26 | 2015-11-11 | 广州瑞达医疗器械有限公司 | Photoacoustic-ultrasonic dual-mode rectum endoscope |
| CN105361840A (en) * | 2015-11-30 | 2016-03-02 | 青岛大学附属医院 | Photoacoustic endoscope system |
| CN105380586A (en) * | 2015-12-29 | 2016-03-09 | 华南师范大学 | Combined type solid angle scanning photo/acoustic endoscopic imaging device and method thereof |
| CN105662476A (en) * | 2016-04-05 | 2016-06-15 | 中南大学 | Full-view endoscopic opto-acoustic/ultrasonic probe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010080991A2 (en) * | 2009-01-09 | 2010-07-15 | Washington University In St. Louis | Miniaturized photoacoustic imaging apparatus including a rotatable reflector |
-
2016
- 2016-08-01 CN CN201610619241.3A patent/CN106264604B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912250A (en) * | 2010-05-24 | 2010-12-15 | 华南师范大学 | Intravascular photoacoustic and ultrasonic double-mode imaging endoscope device and imaging method thereof |
| CN203776938U (en) * | 2014-04-08 | 2014-08-20 | 马晓鹏 | Photoacoustic imaging endoscope device |
| CN103976703A (en) * | 2014-05-27 | 2014-08-13 | 江西科技师范大学 | Optoacoustic and ultrasonic bimodal endoscope imaging system and imaging method |
| CN105011906A (en) * | 2015-06-11 | 2015-11-04 | 北京大学 | Photoacoustic computed tomography system combined with slip ring and tomographic method thereof |
| CN105030281A (en) * | 2015-08-26 | 2015-11-11 | 广州瑞达医疗器械有限公司 | Photoacoustic-ultrasonic dual-mode rectum endoscope |
| CN105361840A (en) * | 2015-11-30 | 2016-03-02 | 青岛大学附属医院 | Photoacoustic endoscope system |
| CN105380586A (en) * | 2015-12-29 | 2016-03-09 | 华南师范大学 | Combined type solid angle scanning photo/acoustic endoscopic imaging device and method thereof |
| CN105662476A (en) * | 2016-04-05 | 2016-06-15 | 中南大学 | Full-view endoscopic opto-acoustic/ultrasonic probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106264604A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106264604B (en) | Full-scanning photoacoustic dual-mode endoscope probe | |
| US10105062B2 (en) | Miniaturized photoacoustic imaging apparatus including a rotatable reflector | |
| US20220151469A1 (en) | Photoacoustic and ultrasonic endoscopy system including a coaxially configured optical and electromagnetic rotary waveguide assembly and implementation method thereof | |
| JP3654309B2 (en) | Acicular ultrasonic probe | |
| EP0088620A2 (en) | An ultrasonic probe for diagnostic examination of the interior of body cavities | |
| KR102001980B1 (en) | Photoacoustic and ultrasonic endoscopic mini-probe | |
| US20110098572A1 (en) | Ultrasound guided optical coherence tomography, photoacoustic probe for biomedical imaging | |
| WO2010048258A1 (en) | Reflection-mode photoacoustic tomography using a flexibly-supported cantilever beam | |
| CN203776938U (en) | Photoacoustic imaging endoscope device | |
| CN105769128A (en) | Integrated opto-acoustic, ultrasonic and opto-acoustic elastic endoscopic imaging device and method thereof | |
| JP2007268131A (en) | Image diagnostic system, and its processing method | |
| CN103690141A (en) | Internal rectal optical, optoacoustic and ultrasonic multimode imaging endoscope and imaging method thereof | |
| CN105662476B (en) | Optoacoustic/ultrasonic probe is peeped in full view | |
| EP3668374A1 (en) | Device for endoscopic optoacoustic imaging, in particular for endoscopic optoacoustic imaging of cavities and hollow objects | |
| CN105996967A (en) | Focus-adjustable optoacoustic bi-mode endoscope probe | |
| CN111134591B (en) | Photoacoustic microscopic imaging pen and imaging method | |
| JP2007267998A (en) | Optical and ultrasonic tomographic image generator | |
| CN206138103U (en) | Miniature optoacoustic endoscope probe | |
| JPS6137943B2 (en) | ||
| JPH05329156A (en) | Ultrasonic probe with observational function | |
| KR20180107045A (en) | Photoacoustic and ultrasonic endoscopy system including a coaxially-configured optical and electromagnetic rotary waveguide assembly and embodiment method thereof | |
| CN105125238B (en) | A kind of transurethral bladder supersonic detection method, diagnostic equipment and transducer | |
| JPS628172B2 (en) | ||
| CN204863101U (en) | System for adopt interior multimode formation of image scanning head of rear -guard formula rectum | |
| JP5194839B2 (en) | Rotating light irradiation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |