CN110215192B - Automatic OCT multi-probe switching system and method - Google Patents
Automatic OCT multi-probe switching system and method Download PDFInfo
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B2562/227—Sensors with electrical connectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
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Abstract
The invention discloses an automatic switching system and method for OCT multi-probe, which uses a photoelectric mixed connector to make OCT imaging equipment connect the electrical signal of a scanning probe and the optical signal of an optical fiber simultaneously by only one connector; a plurality of pins in the photoelectric mixed connector are defined to be used for distinguishing the types of the scanning probes, and the main control chip switches and outputs different control signals and driving modules according to the levels of the pins, so that automatic switching and driving of various different scanning probes are realized; therefore, the OCT imaging equipment can be universally connected with two or more different types of scanning probes by using only one interface in the technical scheme, so that the using number of the connectors is reduced; the OCT imaging equipment can scan samples in different application scenes by simply switching the connected scanning probes.
Description
Technical Field
The invention relates to the field of medical imaging, in particular to an automatic OCT multi-probe switching system and method.
Background
An Optical Coherence Tomography (OCT) is used as a biomedical imaging means with high resolution, the principle of the OCT is based on a low coherence interference technology, the advantages of heterodyne detection and confocal imaging are combined, a three-dimensional chromatographic image of a sample is recovered through acquisition and processing of interference signals, important information such as the internal structure and the scattering coefficient of the sample is reflected, the imaging depth is 3-5mm, a lesion area is covered, the resolution is as high as 1-10 microns, the OCT has the advantages of non-invasion, no radiation and the like, and the OCT has good application prospect and development potential in many fields.
Because of the above features of the OCT technology, OCT imaging devices applied in different fields are often configured with different types of probes, for example, the OCT imaging device can perform large-area fast scanning imaging on a sample in a non-endoscopic field if configured with a scanning probe composed of a mechanical galvanometer, and the OCT imaging device can be used for narrow-lumen endoscopic imaging if configured with a micro-mirror scanning probe composed of a Micro Electro Mechanical Systems (MEMS). Because different scanning probes of the OCT imaging device have different driving voltages and currents, one probe interface of the existing OCT imaging device can only be adapted to one scanning probe generally, the application range is limited, and when the OCT imaging device is applied to different scenes, the problems of too many probe connectors, too many probe connector pins, optical fiber cable separation, poor probe interchangeability and reduced stability can occur, and the free switching of the OCT probes with different characteristics can not be realized.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to provide an automatic OCT multi-probe switching system and method, and aims to solve the problem that the existing OCT imaging equipment cannot realize free switching of OCT probes with different characteristics.
The technical scheme of the invention is as follows: the OCT multi-probe automatic switching system comprises a photoelectric mixed connector, wherein a scanning probe type pin, a shared pin and an optical fiber connector are arranged on the photoelectric mixed connector, the type of a currently connected scanning probe is determined according to the level type output by the scanning probe type pin, a control signal is output through the shared pin to drive the currently connected scanning probe, an OCT imaging device inquires and acquires the type of the currently connected scanning probe and sends a scanning command to the currently connected scanning probe, and an optical signal of the scanning probe is connected to the OCT imaging device through the optical fiber connector and an optical fiber line on the photoelectric mixed connector.
The OCT multi-probe automatic switching system further comprises a main control chip, wherein the main control chip is connected with the OCT imaging equipment and is connected with a scanning probe type pin; the main control chip detects whether the level of a scanning probe type pin on the photoelectric mixed connector changes; the main control chip outputs a control signal to the currently connected scanning probe through a shared pin according to the level type of the scanning probe type pin, and drives the scanning probe; the main control chip sends the type of the scanning probe to the OCT imaging equipment, and the OCT imaging equipment queries and acquires the type of the currently connected scanning probe; the OCT imaging equipment sends a scanning command to the main control chip, the main control chip sends the scanning command to the connected scanning probe, and an optical signal of the scanning probe is connected to the OCT imaging equipment through an optical fiber connector and an optical fiber line on the photoelectric mixed connector.
The OCT multi-probe automatic switching system further comprises a serial port module, wherein the serial port module is connected with the OCT imaging equipment and is connected with the main control chip; the main control chip sends the type of the scanning probe to the OCT imaging equipment through the serial port module and receives a scanning command of the OCT imaging equipment.
The OCT multi-probe automatic switching system further comprises a digital-to-analog conversion output module, wherein the digital-to-analog conversion output module is connected with the main control chip and is connected with the photoelectric mixed connector; the main control chip controls the digital-to-analog conversion output module to output driving signal waves with different voltages, frequencies and phases through different output channels according to the scanning command so as to drive different scanning probes.
The OCT multi-probe automatic switching system further comprises a relay module, wherein the relay module is connected with the main control chip, the relay module is connected with the digital-to-analog conversion output module, and the relay module is connected with a common pin on the photoelectric mixed connector; the main control chip controls the relay module according to the type of the scanning probe, and the relay module controls and switches the common pins to the driving modules corresponding to the scanning probe.
The OCT multi-probe automatic switching system comprises a photoelectric mixed connector, an OCT imaging device, a galvanometer scanning probe, an MEMS scanning probe, a main control chip, a serial port module, a digital-to-analog conversion output module, a relay module and a galvanometer motor driving module when the scanning probe is a galvanometer scanning probe and an MEMS scanning probe, wherein an optical fiber connector, a scanning probe type pin and a shared pin are arranged on the photoelectric mixed connector, the galvanometer scanning probe and the MEMS scanning probe are both connected with the photoelectric mixed connector, the scanning probe type pin is connected with the main control chip, the main control chip is connected with the serial port module, the main control chip is connected with the digital-to-analog conversion output module, the main control chip is connected with the relay module, the serial port module is connected with the OCT imaging device, the digital-to-analog conversion output module is connected with the galvanometer motor driving module, the digital-to-analog conversion output module is connected with the relay module, the relay module is connected with the vibrating mirror motor driving module, the relay module is connected with the shared pin, and the optical fiber connector is connected with the OCT imaging equipment through an optical fiber line.
An automatic switching method for OCT multiple probes specifically comprises the following steps:
s1: detecting whether the level of a scanning probe type pin on the photoelectric mixed connector changes;
s2: outputting a control signal to a corresponding scanning probe according to the level type of a scanning probe type pin, and driving the scanning probe;
s3: feeding back the type of the currently connected scanning probe to the OCT imaging equipment;
s4: waiting for the OCT imaging equipment to inquire the type of the currently connected scanning probe;
s5: and receiving a scanning command of the OCT imaging equipment, and sending the scanning command to the currently connected scanning probe.
The OCT multi-probe automatic switching method comprises the following steps of when the scanning probe is a galvanometer scanning probe or an MEMS scanning probe:
s 2: the main control chip detects whether the level of the scanning probe type pin changes, if not, the S3 is switched to, and if so, all the output of the digital-to-analog conversion module is set to be 0V and the S3 is switched to;
s 3: the main control chip detects the level state of the scanning probe type pin, if the level state is low, the main control chip controls the relay module, so that the output port of the galvanometer motor driving module is connected to the common pin and turns to s 4; if the voltage level is high, the main control chip controls the relay module to enable the output port of the digital-to-analog conversion module to be directly connected to the common pin and switch to s 4;
s 4: the main control chip feeds back the type of the currently connected scanning probe to the OCT imaging equipment through the serial port module and turns to s 5;
s 5: the main control chip waits for the OCT imaging equipment to inquire the type of the currently connected scanning probe and turns to s 6;
s 6: the main control chip waits for receiving the scan command of the OCT imaging device and sends the received scan command to the currently connected scanning probe, and goes to s 2.
The OCT multi-probe automatic switching method further includes, before s2, s 1: and powering on and starting up, initializing the main control chip, setting all the outputs of the digital-to-analog conversion module to be 0V, controlling the relay module, directly connecting the output ports of the digital-to-analog conversion module to the common pins, and turning to s 2.
In the OCT multi-probe automatic switching system, in s6, the main control chip waits for receiving the scan command of the OCT imaging device, and sends the received scan command to the currently connected scan probe: if the scanning probe connected currently is a galvanometer scanning probe, the main control chip controls two channels in the digital-to-analog conversion module to output two paths of scanning triangular waves to the galvanometer motor driving module according to a scanning command, and simultaneously controls the relay module to enable the output line of the galvanometer motor driving module to be connected to a common pin on the photoelectric mixed connector; if the scanning probe connected at present is an MEMS scanning probe, the main control chip controls four channels in the digital-to-analog conversion module to output scanning triangular waves to the relay module, and simultaneously the main control chip controls the relay module to directly connect four channel signals of the digital-to-analog conversion module to the shared pins on the photoelectric mixed connector.
The invention has the beneficial effects that: the invention provides an automatic switching system and method for OCT multi-probe, which uses a photoelectric mixed connector to make OCT imaging equipment connect the electrical signal of the scanning probe and the optical signal of the optical fiber at the same time by only one connector; a plurality of pins in the photoelectric mixed connector are defined to be used for distinguishing the types of the scanning probes, and the main control chip switches and outputs different control signals and driving modules according to the levels of the pins, so that automatic switching and driving of various different scanning probes are realized; the main control chip is connected with a serial port module and is used for informing the current type of the scanning probe of the OCT imaging equipment and receiving the scanning command of the OCT imaging equipment; the main control chip is connected with a digital-to-analog conversion output module, and selects different output channels according to the scanning command so as to output triangular waves with different voltages, frequencies and phases to drive different scanning probes; the main control chip is connected with a relay module, and controls the relay module according to the type of the scanning probe, so that the common pin of the scanning probe is switched to the driving module corresponding to the type of the scanning probe; therefore, the OCT imaging equipment can be universally connected with two or more different types of scanning probes by using only one interface in the technical scheme, so that the using number of the connectors is reduced; the OCT imaging equipment can scan samples in different application scenes by simply switching the connected scanning probes.
Drawings
FIG. 1 is a schematic structural diagram of an OCT multi-probe automatic switching system in the invention.
FIG. 2 is a flowchart of the steps of the OCT multi-probe automatic switching method in the invention.
FIG. 3a is a triangular waveform of the A scan of the galvanometer scanning probe of the present invention.
FIG. 3B is a B-scan triangular waveform diagram of the galvanometer scanning probe of the present invention.
Figure 3c is a set of a-scan triangular waveforms for the MEMS scanning probe of the present invention.
Figure 3d is a set of B-scan triangular waveforms for the MEMS scanning probe of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
As shown in fig. 1, an OCT multi-probe automatic switching system includes a photoelectric hybrid connector 1, a scanning probe type pin 2, a common pin 7, and an optical fiber connector 11 are disposed on the photoelectric hybrid connector 1, a type of a currently connected scanning probe 9 is determined according to a level type output by the scanning probe type pin 2, the currently connected scanning probe 9 is driven by a control signal output by the common pin 7, an OCT imaging device 10 queries and acquires the type of the currently connected scanning probe 9 and sends a scanning command to the currently connected scanning probe 9, and an optical signal of the scanning probe 9 is connected to the OCT imaging device 10 through the optical fiber connector 11 and an optical fiber line 12 on the photoelectric hybrid connector 1.
Specifically, the OCT multi-probe automatic switching system further includes a main control chip 3, the main control chip 3 is connected to the OCT imaging device 10, and the main control chip 3 is connected to the scanning probe type pin 2; the main control chip 3 detects whether the level of a scanning probe type pin 2 on the photoelectric mixed connector 1 changes; the main control chip 3 outputs a control signal to the corresponding scanning probe 9 through the common pin 7 according to the level type of the scanning probe type pin 2, and drives the scanning probe 9; the main control chip 3 sends the type of the scanning probe 9 to the OCT imaging device 10, and the OCT imaging device 10 queries and acquires the type of the currently connected scanning probe 9; the OCT imaging device 10 sends a scanning command to the main control chip 3, the main control chip 3 sends the scanning command to the connected scanning probe 9, and an optical signal of the scanning probe 9 is connected to the OCT imaging device 10 through an optical fiber connector 11 and an optical fiber line 12 on the photoelectric mixed connector 1.
Further, the automatic OCT multi-probe switching system further includes a serial module 8, the serial module 8 is connected to the OCT imaging device 10, and the serial module 8 is connected to the main control chip 3; the main control chip 3 informs the OCT imaging device 10 of the current type of the scanning probe 9 and receives a scan command of the OCT imaging device 10 through the serial module 8.
Further, the automatic OCT multi-probe switching system further includes a digital-to-analog conversion output module 4, the digital-to-analog conversion output module 4 is connected to the main control chip 3, and the digital-to-analog conversion output module 4 is connected to the photoelectric mixed connector 1; the main control chip 3 controls the digital-to-analog conversion output module 4 to output driving signal waves with different voltages, frequencies and phases through different output channels according to the scanning command so as to drive different scanning probes 9.
Furthermore, the automatic OCT multi-probe switching system further comprises a relay module 6, wherein the relay module 6 is connected with the main control chip 3, the relay module 6 is connected with the digital-to-analog conversion output module 4, and the relay module 6 is connected with a common pin 7 on the photoelectric mixed connector 1; the main control chip 3 controls the relay module 6 according to the type of the scanning probe, and the relay module 6 controls and switches the common pin 7 to the driving module corresponding to the scanning probe.
When the scanning probe is a galvanometer scanning probe and an MEMS scanning probe, the OCT multi-probe automatic switching system comprises a photoelectric mixed connector 1, an OCT imaging device 10, a galvanometer scanning probe 9, an MEMS scanning probe 9, a main control chip 3, a serial port module 8, a digital-to-analog conversion output module 4, a relay module 6 and a galvanometer motor driving module 5, an optical fiber connector 11, a scanning probe type pin 2 and a shared pin 7 are arranged on the photoelectric mixed connector 1, the galvanometer scanning probe 9 and the MEMS scanning probe 9 are both connected with the photoelectric mixed connector 1, the scanning probe type pin 2 is connected with the main control chip 3, the main control chip 3 is connected with the serial port module 8, the main control chip 3 is connected with the digital-to-analog conversion output module 4, the main control chip 3 is connected with the relay module 6, the serial port module 8 is connected with the OCT imaging device 10, the digital-to-analog conversion output module 4 is connected with the galvanometer motor driving module 5, digital-to-analog conversion output module 4 is connected with relay module 6, and relay module 6 is connected with galvanometer motor drive module 5, and relay module 6 is connected with sharing stitch 7, and fiber connector 11 passes through optic fibre line 12 with OCT imaging device 10 and is connected.
As shown in fig. 1, an OCT multi-probe automatic switching method specifically includes the following steps:
s1: detecting whether the level of a scanning probe type pin 2 on the photoelectric mixed connector 1 changes;
s2: outputting a control signal to the corresponding scanning probe 9 according to the level type of the scanning probe type pin 2, and driving the scanning probe 9;
s3: feeding back the type of the currently connected scanning probe 9 to the OCT imaging device 10;
s4: waiting for the OCT imaging device 10 to query the type of scanning probe 9 currently connected;
s5: and receiving a scanning command of the OCT imaging equipment, and sending the scanning command to the currently connected scanning probe.
When the scanning probes are a galvanometer scanning probe and an MEMS scanning probe, the OCT multi-probe automatic switching method specifically comprises the following steps:
s 1: powering on and starting up, initializing the main control chip 3, setting all the outputs of the digital-to-analog conversion module 4 to be 0V, controlling the relay module 6 to enable the output port of the digital-to-analog conversion module 4 to be directly connected to the common pin 7, and turning to s 2;
s 2: the main control chip 3 detects whether the level of the scanning probe type pin 2 changes, if the level does not change, the operation goes to s3, and if the level changes, all the outputs of the digital-to-analog conversion module 4 are set to be 0V and the operation goes to s 3;
s 3: the main control chip 3 detects the level state of the scanning probe type pin 2, if the level state is low, the main control chip 3 controls the relay module 6, so that the output port of the galvanometer motor driving module 5 is connected to the common pin 7 and turns to s 4; if the voltage level is high, the main control chip 3 controls the relay module 6 to enable the output port of the digital-to-analog conversion module 4 to be directly connected to the common pin 7 and switch to s 4;
s 4: the main control chip 3 feeds back the type of the currently connected scanning probe 9 to the OCT imaging device 10 through the serial port module 8 and turns to s 5;
s 5: the main control chip 3 waits for the OCT imaging device 10 to inquire about the type of the currently connected scanning probe 9 and goes to s 6;
s 6: the main control chip 3 waits for receiving the scan command of the OCT imaging apparatus 10 and sends the received scan command to the currently connected scanning probe, and goes to s 2.
Wherein, in s6, the main control chip 3 waits for receiving the scan command of the OCT imaging device 10 and sends the received scan command to the currently connected scanning probe: if the scanning probe connected currently is a galvanometer scanning probe, the main control chip 3 controls two channels in the digital-to-analog conversion module 4 to output two scanning triangular waves (the triangular waves are shown in fig. 3a and 3 b) to the galvanometer motor driving module 5 according to the scanning command, and meanwhile, the main control chip 3 controls the relay module 6 to enable the output line of the galvanometer motor driving module 5 to be connected to the common pin 7 on the photoelectric mixed connector 1; if the scanning probe connected currently is an MEMS scanning probe, the four channels in the digital-to-analog conversion module 4 are all controlled to output scanning triangular waves (as shown in fig. 3c and 3d, every two channels are in one group, and the two triangular waves in each group have a phase difference of 180 degrees) to the relay module 6, and meanwhile, the main control chip 3 controls the relay module 6 to directly connect the four-channel signals of the digital-to-analog conversion module 4 to the common pin 7 on the opto-electric hybrid connector 1.
In the technical scheme, the photoelectric mixed connector 1 is used as an input interface of a scanning probe in the OCT imaging device 10, the electric signal and the optical signal of the scanning probe can be connected by only using one interface, the interface can be connected with various scanning probes, including but not limited to a galvanometer scanning probe and an MEMS scanning probe, and all scanning probe electric signal connecting pins are connected by using a common pin 7 of the photoelectric mixed connector 1.
According to the technical scheme, a plurality of pins in the photoelectric mixed connector 1 are defined as scanning probe type detection pins 2, the type of a scanning probe actually connected to the OCT imaging equipment 10 can be identified through the level of the scanning probe type detection pins 2, different control signals and driving modules are automatically switched according to the identified type of the scanning probe, and the scanning probe is connected to a common pin 7 of the photoelectric mixed connector 1.
The technical scheme is provided with a serial port module 8, the main control chip 3 can send the type information of the currently connected scanning probe 9 to the OCT imaging device 10 through the serial port module 8, and the main control chip 3 can receive the scanning command of the OCT imaging device 10 through the serial port module 8.
According to the technical scheme, a main control chip 3, a digital-to-analog conversion module 4 and a serial port module 8 are used for generating a plurality of triangular wave driving signals corresponding to the types of the scanning probe 9 according to the type of the currently connected scanning probe 9 and a received scanning command of an OCT imaging device 10, wherein the driving signals include but are not limited to two-channel triangular wave signals with mutually independent frequencies, phases and amplitudes, or two groups of triangular wave signals with mutually independent frequencies, phases and amplitudes (for example, the frequency and the amplitude of each group of signals are the same, but the phases are different by 180 degrees), and the driving modes can also be scanning probe driving modes such as sine wave signals and the like.
In the technical scheme, by using the photoelectric mixed connector 1, the OCT imaging device 10 can simultaneously connect the electrical signal of the scanning probe and the optical signal of the optical fiber by using only one connector; a plurality of pins in the photoelectric mixed connector 1 are defined to be used for distinguishing the types of scanning probes, and the main control chip 3 switches and outputs different control signals and driving modules according to the levels of the pins, so that automatic switching and driving of various different scanning probes are realized; the main control chip 3 is connected with a serial port module 8 for informing the OCT imaging device 10 of the current scanning probe type and receiving the scanning command of the OCT imaging device 10; the main control chip 3 is connected with a digital-to-analog conversion output module 4, and the main control chip 3 selects different output channels according to the scanning command so as to output triangular waves with different voltages, frequencies and phases to drive different scanning probes; the main control chip 3 is connected with a relay module 6, the main control chip 3 controls the relay module 6 according to the type of the scanning probe, and the common pin of the scanning probe is switched to a driving module corresponding to the type of the scanning probe; thus, the OCT imaging device 10 can be universally connected with two or more different types of scanning probes by using only one interface in the technical scheme, so that the using number of the connectors is reduced; the OCT imaging equipment can scan samples in different application scenes by simply switching the connected scanning probes.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. An OCT multi-probe automatic switching system is characterized by comprising a photoelectric mixed connector, a scanning probe, an OCT imaging device, a main control chip, a serial port module, a digital-to-analog conversion output module, a relay module and a galvanometer motor driving module, wherein the photoelectric mixed connector is provided with a scanning probe type stitch, a shared stitch and an optical fiber connector, the scanning probes are a galvanometer scanning probe and an MEMS scanning probe, the galvanometer scanning probe and the MEMS scanning probe are both connected with the photoelectric mixed connector, the scanning probe type stitch is connected with the main control chip, the main control chip is connected with the serial port module, the main control chip is connected with the digital-to-analog conversion output module, the main control chip is connected with the relay module, the serial port module is connected with the OCT imaging device, the digital-to-analog conversion output module is connected with the galvanometer motor driving module, and the digital-to-analog conversion output module is connected with the relay module, the relay module is connected with the galvanometer motor driving module, the relay module is connected with a shared pin, an optical fiber connector is connected with the OCT imaging equipment through an optical fiber line, the photoelectric mixed connector determines the type of the scanning probe which is currently connected according to the level type output by the scanning probe type pin, a control signal is output through the shared pin to drive the scanning probe which is currently connected, the OCT imaging equipment inquires and acquires the type of the scanning probe which is currently connected and sends a scanning command to the scanning probe which is currently connected, and the optical signal of the scanning probe is connected to the OCT imaging equipment through the optical fiber connector and the optical fiber line on the photoelectric mixed connector.
2. The automatic switching system for OCT multiple probes according to claim 1, wherein the main control chip is connected to the OCT imaging device, the main control chip detects whether the level of the scanning probe type pin on the OPCs connector changes; the main control chip outputs a control signal to the currently connected scanning probe through a shared pin according to the level type of the scanning probe type pin, and drives the scanning probe; the main control chip sends the type of the scanning probe to the OCT imaging equipment, and the OCT imaging equipment queries and acquires the type of the currently connected scanning probe; the OCT imaging equipment sends a scanning command to the main control chip, the main control chip sends the scanning command to the connected scanning probe, and an optical signal of the scanning probe is connected to the OCT imaging equipment through an optical fiber connector and an optical fiber line on the photoelectric mixed connector.
3. The automatic OCT multi-probe switching system of claim 2, wherein the serial port module is connected to the main control chip; the main control chip sends the type of the scanning probe to the OCT imaging equipment through the serial port module and receives a scanning command of the OCT imaging equipment.
4. The automatic OCT multi-probe switching system of claim 2, wherein the digital-to-analog conversion output module is connected to the opto-electrical hybrid connector; the main control chip controls the digital-to-analog conversion output module to output driving signal waves with different voltages, frequencies and phases through different output channels according to the scanning command so as to drive different scanning probes.
5. The OCT multi-probe automatic switching system of claim 4, wherein the main control chip controls the relay module according to the type of the scanning probe, and the relay module controls and switches the common pin to the driving module of the corresponding scanning probe.
6. An automatic switching method for OCT multiple probes is characterized by comprising the following steps:
s1: detecting whether the level of a scanning probe type pin on the photoelectric mixed connector changes;
s2: outputting a control signal to a corresponding scanning probe according to the level type of a scanning probe type pin, and driving the scanning probe;
s3: feeding back the type of the currently connected scanning probe to the OCT imaging equipment;
s4: waiting for the OCT imaging equipment to inquire the type of the currently connected scanning probe;
s5: receiving a scanning command of OCT imaging equipment, and sending the scanning command to a currently connected scanning probe, wherein the scanning probe comprises a galvanometer scanning probe and an MEMS scanning probe, and the method specifically comprises the following steps:
s 2: the main control chip detects whether the level of the scanning probe type pin changes, if not, the S3 is switched to, and if so, all the output of the digital-to-analog conversion module is set to be 0V and the S3 is switched to;
s 3: the main control chip detects the level state of the scanning probe type pin, if the level state is low, the main control chip controls the relay module, so that the output port of the galvanometer motor driving module is connected to the common pin and turns to s 4; if the voltage level is high, the main control chip controls the relay module to enable the output port of the digital-to-analog conversion module to be directly connected to the common pin and switch to s 4;
s 4: the main control chip feeds back the type of the currently connected scanning probe to the OCT imaging equipment through the serial port module and turns to s 5;
s 5: the main control chip waits for the OCT imaging equipment to inquire the type of the currently connected scanning probe and turns to s 6;
s 6: the main control chip waits for receiving the scan command of the OCT imaging device and sends the received scan command to the currently connected scanning probe, and goes to s 2.
7. The OCT multi-probe automatic switching method of claim 6, further comprising, prior to s2, s 1: and powering on and starting up, initializing the main control chip, setting all the outputs of the digital-to-analog conversion module to be 0V, controlling the relay module, directly connecting the output ports of the digital-to-analog conversion module to the common pins, and turning to s 2.
8. The OCT multi-probe automatic switching method of claim 6, wherein in s6, the main control chip waits for receiving the scan command of the OCT imaging device and sends the received scan command to the currently connected scan probe: if the scanning probe connected currently is a galvanometer scanning probe, the main control chip controls two channels in the digital-to-analog conversion module to output two paths of scanning triangular waves to the galvanometer motor driving module according to a scanning command, and simultaneously controls the relay module to enable the output line of the galvanometer motor driving module to be connected to a common pin on the photoelectric mixed connector; if the scanning probe connected at present is an MEMS scanning probe, the main control chip controls four channels in the digital-to-analog conversion module to output scanning triangular waves to the relay module, and simultaneously the main control chip controls the relay module to directly connect four channel signals of the digital-to-analog conversion module to the shared pins on the photoelectric mixed connector.
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| CN111813020A (en) * | 2020-07-14 | 2020-10-23 | 深圳市莱康宁医用科技股份有限公司 | Portable medical detector with replaceable probe and control method thereof |
| CN112741647B (en) * | 2020-12-31 | 2024-03-15 | 深圳开立生物医疗科技股份有限公司 | Working probe switching method and device, ultrasonic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586402A (en) * | 2004-09-29 | 2005-03-02 | 清华大学 | Endoscopic optical tomographic imaging scanning probe device based on micro motor |
| CN205697681U (en) * | 2016-04-11 | 2016-11-23 | 佛山市南海区欧谱曼迪科技有限责任公司 | A kind of Motion Adaptive road OCT endoscope system altogether |
| CN109730693A (en) * | 2018-12-13 | 2019-05-10 | 北京理工大学 | A kind of three visual field optical handheld of novel tubular structure probe |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008086614A1 (en) * | 2007-01-19 | 2008-07-24 | University Health Network | Electrostatically driven imaging probe |
| CN100488440C (en) * | 2007-07-03 | 2009-05-20 | 浙江大学 | Common channel type endoscopic optical coherent chromatography imaging method and system |
| US9532768B2 (en) * | 2007-08-17 | 2017-01-03 | General Electric Company | Multi-headed imaging probe and imaging system using same |
| CN101433465B (en) * | 2007-11-12 | 2011-04-20 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic instrument and multiple-probe control method thereof |
| CN101455575B (en) * | 2007-12-10 | 2011-07-13 | 深圳迈瑞生物医疗电子股份有限公司 | Electric device probe expansion device and expansion-probe control method of main frame |
| US9215995B2 (en) * | 2010-06-23 | 2015-12-22 | Medtronic Minimed, Inc. | Sensor systems having multiple probes and electrode arrays |
| CN103082998B (en) * | 2013-01-29 | 2015-12-16 | 无锡微奥科技有限公司 | A kind of hand-held MEMS optical scanner |
| CN104434197A (en) * | 2013-09-17 | 2015-03-25 | 苏州边枫电子科技有限公司 | Photoelectric sensing and automatic probe switching type B-ultrasonic detecting system |
| US9907471B2 (en) * | 2013-10-08 | 2018-03-06 | The Board Of Trustees Of The Leland Stanford Junior University | Visualization of heart wall tissue |
| GB2553704B (en) * | 2015-03-11 | 2021-04-28 | Synaptive Medical Inc | An optical coherence tomography system with dual optical coherence tomography probes |
| US10835360B2 (en) * | 2016-04-01 | 2020-11-17 | Research and Development International Corporation | Advanced periodontal endoscope and methods |
| GB2567326B (en) * | 2016-04-22 | 2022-03-09 | Synaptive Medical Inc | Multi-fiber optical probe and optical coherence tomography system |
| CN107518877A (en) * | 2017-08-25 | 2017-12-29 | 广州永士达医疗科技有限责任公司 | A kind of calibrating installation and method of OCT conduits |
-
2019
- 2019-07-05 CN CN201910604671.1A patent/CN110215192B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586402A (en) * | 2004-09-29 | 2005-03-02 | 清华大学 | Endoscopic optical tomographic imaging scanning probe device based on micro motor |
| CN205697681U (en) * | 2016-04-11 | 2016-11-23 | 佛山市南海区欧谱曼迪科技有限责任公司 | A kind of Motion Adaptive road OCT endoscope system altogether |
| CN109730693A (en) * | 2018-12-13 | 2019-05-10 | 北京理工大学 | A kind of three visual field optical handheld of novel tubular structure probe |
Non-Patent Citations (2)
| Title |
|---|
| A MEMS based Optical Coherence Tomography Imaging System and Optical Biopsy Probes for Real-Time, High Resolution In-Vivo and In-Vitro 2-D or 3-D Imaging;D.T. McCormick，等;《IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference》;20060824;全文 * |
| 一种多样品臂扫频光学相干层析系统;娄帆;《半导体光电》;20171031;第38卷(第5期);全文 * |
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