CN119548085A

CN119548085A - OCT endoscope system, probe positioning method, electronic equipment and storage medium

Info

Publication number: CN119548085A
Application number: CN202411748148.3A
Authority: CN
Inventors: 马欢; 王帅; 王宝金; 肖雷; 杨赛
Original assignee: Zhengzhou Guangchao Medical Technology Co ltd
Current assignee: Zhengzhou Guangchao Medical Technology Co ltd
Priority date: 2024-12-02
Filing date: 2024-12-02
Publication date: 2025-03-04

Abstract

The application provides an OCT endoscope system, a probe positioning method, electronic equipment and a storage medium, and relates to the technical field of medical equipment. The OCT endoscope system comprises an OCT scanning probe, at least two image acquisition modules, an image display module and a data processing module, wherein the OCT scanning probe is provided with a probe tube, the at least two image acquisition modules are arranged on the OCT scanning probe and far away from the probe tube, the image acquisition modules are provided with view fields, the image acquisition modules are used for acquiring image information of the view fields, the at least two image acquisition modules are arranged at intervals along the circumferential direction of the probe tube, all view fields of the at least two image acquisition modules cover the circumferential side of the far end of the probe tube, the image acquisition modules are electrically connected with the data processing module, and the data processing module is electrically connected with the image display module. The application can accurately determine the position of the target acquisition point of the probe, and assist doctors to judge the position of the acquired target acquisition point, thereby avoiding the phenomena of missing acquisition or repeated acquisition.

Description

OCT endoscope system, probe positioning method, electronic device and storage medium

Technical Field

The application relates to the technical field of medical equipment, in particular to an OCT (optical coherence tomography) endoscope system, a probe positioning method, electronic equipment and a storage medium.

Background

Cervical cancer is one of the common malignant tumors in gynaecology, one of the key steps in the screening and diagnosis process is histopathological biopsy, and this method is regarded as a "gold standard" for confirming cervical cancer changes. However, since biopsies are invasive, the number of samples taken at a time is typically no more than four, and the sampling location is determined primarily depending on the results of the colposcopy. In view of the fact that colposcopy is essentially a visual assessment, the accuracy of its judgment is limited to early precancerous lesions that occur under cervical epithelium. In addition, colposcopic operation doctors with abundant experience are rare, and these factors together lead to high misdiagnosis rate in the biopsy process, so that not only true lesion sites can be missed, but also unnecessary excessive treatment and medical resource waste can be caused by collecting too many negative samples.

In recent years, optical coherence tomography (Opt i ca l Coherence Tomography, OCT) has shown great potential in the field of cervical cancer screening as a non-invasive imaging technique. OCT techniques can provide high resolution tissue images within a depth range of about 2mm below the cervical surface, helping to more accurately identify and locate diseased regions, thereby improving biopsy accuracy and efficiency and reducing risk of missed diagnosis.

Although the OCT technique can significantly improve the identification degree of the lesion tissue, in practical application, in order to ensure that a biopsy doctor can accurately collect a sample of the lesion site, an inspection position needs to be accurately positioned. The traditional positioning method is divided according to 12 clock directions of the cervical region, and the pathological change area is indicated by marking the clock positions. Considering that the diameter of the human cervix is about 2-3 cm, this means that each hour position actually represents a broad area, whereas the OCT examination or biopsy sample is typically only about 2mm in size. Thus, accurate identification of the lesion location is difficult to achieve with the bell location alone. In order to solve the problem, the image method is adopted to mark the lesion position, so that a more ideal alternative scheme can be provided for biopsy sampling.

Colposcopes appear to be the preferred image recording tool when considering how to effectively record OCT checkpoints. However, since colposcopes are typically placed at a distance outside the body, the device may be obscured by the dilator or OCT probe, affecting its view of the probe's position when performing OCT examinations. Furthermore, it is difficult to achieve synchronous operation with the colposcope and OCT system as separate devices. Another possible solution is to use a conventional endoscope, but since its working distance is typically kept above 30mm to accommodate the operating requirements of the surgical instrument, if its camera is mounted at the front end of the OCT probe, it would prevent full imaging of the tissue surface. Aiming at the challenges, the invention provides an innovative design thought, namely, an endoscopic camera is arranged at the base position of the OCT probe, so that the collaborative operation of the camera and the OCT probe is realized. The design can record the image of the cervical surface and the specific position of the probe while collecting the OCT image, and the positioning precision reaches millimeter level, which is far superior to the traditional clock position recording method.

Disclosure of Invention

In view of the above, the present application aims to overcome the defects in the prior art, and provides an OCT endoscope system, a probe positioning method, an electronic device, and a storage medium, which can accurately determine the position of a target acquisition point of a probe without being used with a colposcope, and assist a doctor in judging the position of the acquired target acquisition point, thereby avoiding missing acquisition or repeated acquisition.

The application provides the following technical scheme:

in a first aspect, embodiments of the present application provide an OCT endoscope system, including:

An OCT scanning probe having a probe tube;

The at least two image acquisition modules are arranged on the OCT scanning probe and far away from the probe tube, the image acquisition modules are provided with view fields and acquisition ends, the image acquisition modules are used for acquiring image information of the view fields, and the acquisition ends of the at least two image acquisition modules are arranged at intervals along the circumferential direction of the probe tube, so that all view fields of the at least two image acquisition modules cover the circumferential side of the far end of the probe tube;

The image display module is electrically connected with the data processing module, the data processing module is electrically connected with the image display module, the data processing module is used for converting all image information acquired by the at least two image acquisition modules into panoramic image information on the periphery of the probe tube, and the image display module is used for displaying the panoramic image information.

In some embodiments of the first aspect, the OCT scanning probe further comprises:

The probe seat is detachably connected with the distal end of the probe tube, and the image acquisition module is arranged at one end, close to the probe tube, of the probe seat.

In some embodiments of the first aspect, the probe tube comprises at least two tube segments connected in sequence, wherein an outer diameter of the tube segment facing away from the proximal end is smaller than an outer diameter of the tube segment near the proximal end of any adjacent two of the tube segments.

In some embodiments of the first aspect, a centerline of the field of view is tangential to an edge of the distal end face of the probe tube.

In some embodiments of the first aspect, the image acquisition module includes a circuit board, a camera module and at least one light source module, the camera module and the at least one light source module are both disposed on an element surface of the circuit board, the camera module and the at least one light source module are both electrically connected with the circuit board, the circuit board is electrically connected with the data processing module, and the circuit board is disposed on the OCT scanning probe.

In some embodiments of the first aspect, the OCT scanning probe further includes a probe holder, the probe holder is connected to a proximal end of the probe tube, an end of the probe holder near the probe tube has a support portion, an end surface of the end of the support portion facing away from the probe holder is a mounting end surface, the mounting end surface is abutted to a soldering surface of the circuit board, and an included angle between the mounting end surface and an axis of the probe tube is configured such that a center line of the field of view is tangent to an edge of a distal end surface of the probe tube.

In some embodiments of the first aspect, the OCT scanning probe further includes a cover plate, where the cover plate has a light source window and a lens window, and the cover plate and the probe seat are connected near one end of the probe tube, so that an installation cavity is enclosed between the cover plate and the probe seat, the camera modules and the light source modules are all located in the installation cavity, each camera module corresponds to the lens window, and each light source module corresponds to the light source window.

In some embodiments of the first aspect, the number of the supporting parts is plural, a gap is provided between adjacent supporting parts, and a gap is provided between the circuit board and the mounting end.

In a second aspect, the present application further provides a probe positioning method applied to the OCT endoscope system of any one of the above embodiments, where the probe positioning method includes:

acquiring a plurality of image information of the distal circumference side of the probe tube;

constructing panoramic image information of the distal end of the probe tube by using the plurality of image information;

And acquiring the position information of a central blind area in the panoramic image information, and setting the central blind area to a target acquisition point of the probe.

In a third aspect, the present application also provides an electronic device, including:

a memory for storing a computer program;

A processor for executing the computer program to implement the probe positioning method as described in the above embodiments.

In a fourth aspect, the present application also provides a computer readable storage medium storing a computer program which when executed by a processor implements a probe positioning method as described in the above embodiments.

Embodiments of the present application have the following advantages:

The application provides a probe which is used together with a vaginal dilator, after the vaginal dilator is used for stretching vagina, the distal end of a probe tube is inserted into a cervical part, the end face of the distal end of the probe tube is abutted against a target acquisition point, and the view field of each image acquisition module is blocked by the probe tube due to the limitation of the distribution positions of a plurality of image acquisition modules, so that the image information shot by each image acquisition module has a blind area. However, the image information acquired by all the image acquisition modules is combined, so that the part, outside the end face of the far end, of the dead zone in the image information shot by the single image acquisition module is eliminated, panoramic image information of the periphery of the probe tube can be acquired, and the central dead zone, which is blocked by the end face of the far end of the probe tube, in the panoramic image information is the optical scanning position of the OCT scanning probe. Therefore, the target scanning point can be accurately controlled by controlling the position of the central dead angle in the panoramic image information. When the colposcope is matched with the colposcope, a complete cervical surface image is shot through the colposcope and then is led into OCT cervical detection equipment, and the acquired position of the probe is synchronously displayed on the relative acquisition point on the complete cervical image shot by the colposcope after software processing.

Obviously, the probe can also be directly acquired without external colposcope assistance. Simplifying the operation flow and reducing the operation difficulty and error of doctors. In gynecological examination, the probe can be used for high-precision imaging and positioning of cervical parts, and helps doctors to accurately judge lesion positions. Of course, the design may also be applied to other endoscopic scenes where high precision imaging and positioning is required. Therefore, the application realizes high-precision positioning and high-quality imaging of the target acquisition point, remarkably improves the accuracy and reliability of OCT examination, and provides powerful support for clinical diagnosis.

In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the structure of an OCT scanning probe according to an embodiment of the present application;

FIG. 2 is a schematic diagram showing the structure of another view angle of an OCT scanning probe according to an embodiment of the present application;

FIG. 3 is a schematic diagram showing an assembly structure of an image acquisition module of an OCT probe according to an embodiment of the present application;

FIG. 4 is a schematic view showing an assembled structure of a support part of an OCT scanning probe according to an embodiment of the present application;

FIG. 5 is a schematic diagram of an OCT scanning probe according to an embodiment of the present application;

FIG. 6 is a view showing panoramic image information of an OCT scanning probe according to an embodiment of the present application;

FIG. 7 is a view showing panoramic image information of an OCT scanning probe according to another embodiment of the present application;

FIG. 8 is a flow chart of a probe positioning method according to still another embodiment of the present application;

FIG. 9 shows an internal structural diagram of an electronic device;

FIG. 10 is a schematic view of images acquired by two imaging modules of an OCT scanning probe according to an embodiment of the present application;

fig. 11 is a schematic view of panoramic image information formed by combining images acquired by two imaging modules of an OCT scanning probe according to an embodiment of the present application.

Description of main reference numerals:

100-OCT scanning probe, 110-probe tube, 111-far end, 112-near end, 120-probe seat, 121-mounting end, 130-cover plate, 131-light source window, 132-lens window;

200-image acquisition module, 210-light source module, 220-camera module, 221-central line, 230-circuit board and 240-supporting part;

300-electronic device, 310-processor, 320-memory, 321-operating system, 322-computer program, 330-power supply, 340-communication interface, 350-input-output interface;

400-panoramic image information, 410-central dead zone.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the related art, OCT (optical coherence tomography ) is a high-resolution non-invasive optical imaging technique, which irradiates biological tissue with low-coherence near-infrared light, and obtains a two-dimensional cross-sectional image or a three-dimensional reconstructed image of the biological tissue with micron-scale resolution by interferometry of the scattered light signals. In OCT, image contrast results from optical index mismatch of tissue structures, without the need for exogenous contrast agents, imaging depths of about 2mm to 3mm within the tissue. OCT is well suited for surface applications such as retinal imaging, and with recent advances in OCT probe catheter technology, OCT is increasingly being used in the endoscopic field, including cardiovascular, gut, lung, laryngeal and genitourinary systems, etc. In order to apply these optical detection techniques to screening and diagnosis of various diseases, an important link is to transmit and focus a light beam to a target tissue area, collect a returned light signal, and transmit the light signal to an acquisition device. In the process, the quality of light beam transmission and focusing directly determines important indexes such as resolution, signal to noise ratio and the like of the optical image. To achieve this object, a probe for gynecological examinations for cervical examinations has been developed.

It should be noted that biopsy is still a gold standard for cervical detection, and OCT has an important role in clinical use, namely, accurately judging suspicious sites before biopsy, providing guidance for biopsy, improving the accuracy of biopsy, and reducing the missed diagnosis rate of biopsy. But the OCT examination needs the auxiliary illumination of a colposcope and shooting, collecting and positioning of the cervical part. Typically, the position of the target acquisition point is determined according to the experience of the doctor, and the acquisition of different experienced doctors may be different. Meanwhile, the OCT probe can locally shield the colposcope during acquisition, so that the positioning of a target acquisition point is inaccurate.

As shown in fig. 1,2 and 3, in order to solve the above technical problems, the embodiment of the present application provides an OCT endoscope system, which includes an OCT scanning probe 100, at least two image acquisition modules 200, an image display module and a data processing module, wherein the OCT scanning probe 100 has a probe tube 110, the at least two image acquisition modules 200 are disposed on the OCT scanning probe 100 and far from the probe tube 110, and the image acquisition modules 200 have a field of view and an acquisition end, the image acquisition modules 200 are used for acquiring image information of the field of view, the acquisition ends of the at least two image acquisition modules 200 are disposed at intervals along the circumferential direction of the probe tube 110 such that all fields of view of the at least two image acquisition modules 200 cover the circumferential side of the distal end 111 of the probe tube 110, the image acquisition modules 200 are electrically connected to the data processing module, the data processing module is electrically connected to the image display module, and the data processing module is used for converting all image information acquired by the at least two image acquisition modules 200 into panoramic image information 400 on the circumferential side of the probe tube 110.

In order to solve the technical problems, the application provides an innovative OCT endoscope system design, which is particularly suitable for OCT (optical coherence tomography) technology and is used for improving the positioning accuracy and imaging quality during examination of cervical and other parts. The OCT scanning probe 100 includes a probe tube 110, which is a main structural component of the probe, and a distal end 111 of the probe tube 110 is used for insertion into a cervical and contact with a target detection site to perform optical scanning.

The image acquisition modules 200 are used for assisting the OCT scanning probe 100, and at least two image acquisition modules 200 can acquire image information of the circumference side of the distal end 111 of the probe tube 110. Illustratively, at least two image acquisition modules 200 are uniformly distributed along the circumference of the probe tube 110, ensuring that images are acquired from multiple angles.

It should be noted that the image acquisition modules 200 are all mounted on the OCT scanning probe 100 near the proximal end 112 of the probe tube 110 to avoid increasing the size of the probe tube 110 and to facilitate observation by the staff. And, the distal end 111 of the probe tube 110 is enabled to block a portion of the field of view, bedding the subsequent formation of the central blind zone 410.

Furthermore, it is ensured that a single image acquisition module 200 is able to capture a portion of the image information around the distal end 111 of the probe tube 110. Obviously, by arranging at least two image acquisition modules 200 on the peripheral side of the probe tube 110 in a distributed manner, the distal end 111 of the probe tube 110 is located in the fields of view of all the image acquisition modules 200, so that the acquisition of the peripheral side image information of the probe tube 110 from different angles can be ensured, and the accuracy of the positioning of the distal end 111 of the probe tube 110 is improved by acquiring a plurality of image information and the position information of the distal end 111 of the probe tube 110.

Illustratively, in the present embodiment, the number of image acquisition modules 200 is two. Of course, in other embodiments, the number of image acquisition modules 200 may be three, four, five, six, seven, eight, etc.

The data processing module is used for converting all image information acquired by the at least two image acquisition modules 200 into panoramic image information 400 on the circumference side of the probe tube 110. Wherein the middle of the acquired panoramic image information 400 has a central blind area 410, which central blind area 410 is formed by the end face shielding of the distal end 111 of the probe tube 110.

The data processing module includes an image processing unit, a data transmission unit and a control unit, where the image processing unit is responsible for processing a plurality of image information captured by the image capturing module 200 to generate panoramic image information 400 on the circumference side of the probe tube 110. The data transmission unit is responsible for transmitting the processed image information to the image display module. The control unit is responsible for coordinating the work of each module and ensuring the normal operation of the system.

The image display module is used for displaying panoramic image information 400 for a doctor to observe, and further, the position information of the central blind area 410 can be obtained, so that the position of the target acquisition point of the distal end 111 of the probe tube 110 can be accurately controlled by adjusting the position information of the central blind area 410. Exemplary image display modules include displays such as tablets, computer displays, televisions, and the like.

When the vaginal dilator is used in cooperation with the vaginal dilator, after the vaginal dilator is used for stretching the vagina, the distal end 111 of the probe tube 110 is inserted into the cervix, the end face of the distal end 111 of the probe tube 110 is abutted against the target acquisition point, and due to the limitation of the distribution positions of the plurality of image acquisition modules 200, the view field of each image acquisition module 200 is shielded by the probe tube 110, and then the image information shot by each image acquisition module 200 has a blind area. However, the image information acquired by all the image acquisition modules 200 is combined, so that the part of the image information shot by the single image acquisition module 200, which is located outside the end face of the distal end 111, is eliminated, the panoramic image information 400 on the periphery of the probe tube 110 can be acquired, and the central dead angle in the panoramic image information 400, which is blocked by the end face of the distal end 111 of the probe tube 110, is the optical scanning position of the OCT scanning probe 100. Thus, the target scan point can be precisely controlled by controlling the position of the center dead angle in the panoramic image information 400.

Obviously, the application does not need external colposcope assistance, simplifies the operation flow and reduces the operation difficulty and error of doctors. In gynecological examination, the probe can be used for high-precision imaging and positioning of cervical parts, and helps doctors to accurately judge lesion positions. Of course, the design may also be applied to other endoscopic scenes where high precision imaging and positioning is required. Therefore, the application realizes high-precision positioning and high-quality imaging of the target acquisition point, remarkably improves the accuracy and reliability of OCT examination, and provides powerful support for clinical diagnosis.

As shown in fig. 1 and 2, in some embodiments, OCT scanning probe 100 further includes a probe holder 120, where probe holder 120 is detachably connected to distal end 111 of probe tube 110, and image acquisition module 200 is disposed at an end of probe holder 120 near probe tube 110.

In these embodiments, some specific implementation details of OCT scanning probe 100 are further specified, particularly with respect to the design of probe base 120. The following is a detailed description:

the probe tube 110 is the main structural component of the OCT scanning probe 100 for insertion into the body for imaging. The probe mount 120 is attached to the distal end 111 of the probe tube 110 for convenient grasping and manipulation by the physician. The image acquisition module 200 is disposed at an end of the probe mount 120 near the probe tube 110.

Obviously, the whole probe structure is more compact and integrated. The image acquisition module 200 is arranged at one end of the probe seat 120 close to the probe tube 110, ensures that the central line 221 of the field of view is tangent to the edge of the end face of the distal end 111 of the probe tube 110, and avoids occupying the space of the front end of the probe tube 110.

Furthermore, generally, the probe tube 110 and the probe holder 120 are detachably connected, and the probe holder 120 integrates the camera module 220 and the light source module 210, so that the probe tube 110 can be conveniently assembled and disassembled subsequently.

In gynecological cervical examination, the probe can be used for high-precision imaging and positioning of cervical parts, and helps doctors to accurately judge lesion positions. And, the vagina of the patient is dilated by the vaginal dilator in advance, the image acquisition module 200 is not interfered.

As shown in FIG. 2, in some embodiments, probe tube 110 comprises at least two tube segments that are connected in series, with the outer diameter of the tube segment that is distal from proximal end 112 being smaller than the outer diameter of the tube segment that is proximal to proximal end 112 in any adjacent two tube segments.

In these embodiments, the structure of OCT scanning probe 100 is further optimized to make it more suitable for use in a narrow physiological environment. The probe tube 110 includes at least two tube sections that are connected in sequence to form a single body. Obviously, this design makes it easier to access the probe tube 110 in a confined physiological environment, such as the cervix, and reduces the risk of injury to tissue.

In addition, the gradually reduced outer diameter design reduces friction and damage to tissues and improves comfort and safety of patients.

Furthermore, the miniaturization of distal end 111 facilitates precise positioning of the probe to the target acquisition site.

Illustratively, the outer diameter of the probe tube 110 tapers in the axial direction. For example, the probe tube 110 has a truncated cone shape.

As shown in fig. 5, in some embodiments, the centerline 221 of the field of view is tangential to the edge of the distal end 111 end face of the probe tube 110.

In these embodiments, when the center line 221 of the field of view of the image acquisition module 200 is tangent to the edge of the end face of the distal end 111 of the probe tube 110, only a half of the image outside the coverage area of the distal end 111 of the probe tube 110 can be just seen, and after the image information acquired by the image acquisition modules 200 is synthesized, the circular shadow part that is not seen by the image acquisition module 200 is the position of the acquisition window (i.e. the central blind area 410) of the distal end 111 of the probe tube 110, so that the position of the target acquisition point can be obtained.

As shown in fig. 3, in some embodiments, the image capturing module 200 includes a circuit board 230, a camera module 220 and at least one light source module 210, the camera module 220 and the at least one light source module 210 are all disposed on the component surface of the circuit board 230, the camera module 220 and the at least one light source module 210 are all electrically connected with the circuit board 230, the circuit board 230 and the data processing module are electrically connected, and the circuit board 230 is disposed on the OCT scanning probe 100.

In these embodiments, the circuit board 230, the camera module 220 and at least one light source module 210 are integrally arranged, and the light source module 210 and the camera module 220 share one circuit board 230, so that the integration can be realized, the size of the probe can be reduced, and the cost can be reduced. And, the direction of illumination of the light source module 210 can be adjusted synchronously by adjusting the orientation of the camera module 220.

Of course, in other embodiments, the light source module 210 and the camera module 220 may be connected to different circuit boards 230.

The number of the light source modules 210 is one, the light source modules 210 are arranged in a ring shape, the probe tube 110 is located in the light source modules 210, the light source modules 210 are also arranged at one end of the probe seat 120 close to the probe tube 110, and the illumination area is ensured to cover the periphery side of the distal end 111 of the probe tube 110. Of course, in other embodiments, the number of the light source modules 210 is plural, and the light source modules 210 are uniformly distributed along the circumference of the probe tube 110 to provide uniform illumination. Of course, the present invention is not particularly limited as long as the illumination of the circumferential side of the distal end 111 of the probe tube 110 can be achieved.

Illustratively, the light source module 210 includes LED light beads that are divergent light sources such that the distal end 111 of the probe tube 110 is within the illumination range of the LED light beads.

As shown in fig. 2, 3 and 4, in some embodiments, the OCT scanning probe 100 further includes a probe holder 120, where the probe holder 120 is connected to the proximal end 112 of the probe tube 110, one end of the probe holder 120 near the probe tube 110 has a support portion 240, an end surface of the support portion 240 facing away from the end of the probe holder 120 is a mounting end 121 surface, the mounting end 121 surface abuts against a soldering surface of the circuit board 230, and an angle between the mounting end 121 surface and an axis of the probe tube 110 is configured such that a center line 221 of the field of view is tangent to an edge of the end surface of the distal end 111 of the probe tube 110.

In these embodiments, the specific structure of OCT scanning probe 100 is further refined, ensuring that the centerline 221 of the field of view is tangential to the edge of the distal end 111 end face of probe tube 110, thereby improving the accuracy and quality of the imaging. The camera module 220 is disposed on the component surface of the circuit board 230 and electrically connected to the circuit board 230. The circuit board 230 contains the electronics necessary for imaging, and is electrically connected to the camera module 220 for processing imaging data. One end of the supporting part 240 is connected to the probe holder, and the other end is connected to the circuit board 230. The end surface of the end of the support portion 240 connected to the circuit board 230 is a mounting end 121 surface, the mounting end 121 surface abuts against a welding surface of the circuit board 230, and an included angle between the mounting end 121 surface and the axis of the probe tube 110 is configured to ensure that a center line 221 of the field of view is tangent to an edge of the end surface of the distal end 111 of the probe tube 110. That is, by controlling the inclination angle of the surface of the mounting end 121, adjustment of the extending direction of the center line 221 of the field of view is achieved.

Illustratively, the support 240 is integrally provided with the probe mount 120. Of course, both may be provided as detachable connections.

As shown in fig. 1 and 2, in some embodiments, the OCT scanning probe 100 further includes a cover plate 130, the cover plate 130 has a light source window 131 and a lens window 132, and the cover plate 130 and the probe seat 120 are connected near one end of the probe tube 110, so that an installation cavity is defined between the cover plate 130 and the probe seat, the camera modules 220 and the light source modules 210 are all located in the installation cavity, each camera module 220 corresponds to the lens window 132, and each light source module 210 corresponds to the light source window 131.

In these embodiments, the structure of the probe holder 120 is further refined, ensuring a reasonable layout and protection of the camera module 220 and the light source module 210 on the probe holder 120. The probe base 120 has a mounting end 121 for securing and supporting the camera module 220 and the light source module 210. One end of the supporting part 240 is connected with the mounting end 121, and the other end is connected with the circuit board 230, so that stability of the camera module 220 is ensured.

The cover plate 130 has at least two light source windows 131, and the light source windows 131 are disposed in one-to-one correspondence with the light source modules 210, so as to ensure that light can pass smoothly. And, the cover plate 130 has at least two lens windows 132, and the lens windows 132 are disposed in one-to-one correspondence with the lens groups of the camera module 220, so as to ensure that the imaging light can pass smoothly.

Wherein, the cover plate 130 is connected with the mounting end 121 to form a mounting cavity, and the camera module 220 and the light source module 210 are located in the mounting cavity, so as to avoid being polluted during use and facilitate cleaning.

Illustratively, in this embodiment, the cover plate 130 and the mounting end 121 are removably coupled. For example, cover 130 is snapped onto mounting end 121. Or by a screw connection between the cover plate 130 and the mounting end 121, etc.

Illustratively, the lens window 132 and the light source window 131 are formed by a transparent region on the cover plate 130, and optionally, an opening is provided on the cover plate 130, and the opening is hermetically mounted with a transparent plate to form the transparent region.

As shown in fig. 3 and 4, in some embodiments, the number of the supporting parts 240 is plural, and there is a gap between adjacent supporting parts 240, and a gap between the circuit board 230 and the mounting end 121.

In these embodiments, proper layout and ventilation and heat dissipation between the circuit board 230 and the mounting end 121 are ensured.

The number of the supporting parts 240 is plural and is uniformly distributed along the circumferential direction of the probe tube 110. The adjacent supporting parts 240 have a gap therebetween to ensure ventilation and facilitate heat dissipation. It is necessary to ensure that the mounting end 121 surfaces of the plurality of support portions 240 are on the same plane.

The circuit board 230 and the mounting end 121 have a gap therebetween to ensure air circulation and facilitate heat dissipation. The design of the support 240 ensures stability of the circuit board 230 despite the gap, preventing the circuit board 230 from shaking during operation.

Illustratively, the support 240 is columnar. Of course, in other embodiments, the hollow structure may be also used.

Obviously, the gaps between the plurality of support parts 240 and the gaps between the circuit board 230 and the mounting end 121 ensure air circulation and heat dissipation performance, improving stability and service life of the apparatus.

As shown in fig. 8, in some embodiments, the present application further provides a probe positioning method applied to the OCT endoscope system described in the above embodiments, where the probe positioning method includes the following steps:

S100, acquiring a plurality of image information on the periphery side of the distal end 111 of the probe tube 110;

In these embodiments, the plurality of camera modules 220 acquire image information from different angles around the distal end 111 of the probe tube 110. The camera module 220 transmits the acquired image information to the data processing module through the circuit board 230.

S200, constructing panoramic image information 400 of the distal end 111 of the probe tube 110 by utilizing the plurality of image information;

In these embodiments, the data processing module concatenates the image information acquired by the plurality of camera modules 220 to generate panoramic image information 400 for the distal end 111 of the probe tube 110. And processing the spliced images to ensure the continuity and definition of the images.

And S300, acquiring position information of a central blind area 410 in the panoramic image information 400, and setting the central blind area 410 to a target acquisition point of the probe.

In these embodiments, the location of the central blind zone 410 is identified in the panoramic image. The central dead zone 410 refers to an area that cannot be directly imaged due to the presence of the probe tube 110. Setting the position of the central blind area 410 as the target acquisition point of the probe ensures that the acquired image information covers the whole inspection area, avoiding missing acquisition or repeated acquisition.

That is, the probe positioning method overview the positioning method applied to the probe described in the above embodiment, constructs panoramic image information 400 by acquiring a plurality of image information on the circumferential side of the distal end 111 of the probe tube 110, and determines the position of the target acquisition point.

For example, as shown in fig. 6, the number of imaging modules is two, the panoramic image information 400 synthesized by the image information captured by the two camera modules 220 is uniformly distributed at the center position of the probe tube 110, the gray shadow area in the middle is the central blind area 410 of the distal end 111 of the probe tube 110 for shielding the image acquisition module 200, and after the image information captured by the two imaging modules are synthesized, the center circle position in the figure is the position of the end face of the distal end 111 of the probe, that is, the probe acquisition point position.

In addition, a simulation schematic diagram is provided, as shown in fig. 10 and 11, wherein fig. 10 is an image captured by two imaging modules respectively, and fig. 11 is a synthesized image of images obtained by two imaging modules. Obviously, the probe position can be accurately positioned.

For example, the number of imaging modules is four, and fig. 7 shows panoramic image information 400 composed of image information photographed by four camera modules 220 uniformly distributed at the center position of the probe tube 110. By the method, the position of the acquisition point of the OCT probe can be accurately positioned, the accuracy is improved, and the central dead zone 410 in the center of the graph is only required to be aligned with the position of the target acquisition point and is attached to the position for acquisition, and the acquired position is the target acquisition point.

Of course, in other embodiments, the number of imaging modules may be three, five, six, etc.

In some embodiments, as shown in FIG. 9, an electronic device 300 is provided that includes a memory 320 and a processor 310, the memory 320 for storing a computer program 322, and the processor 310 for executing the computer program 322 to implement a probe positioning method.

It should be noted that fig. 9 is a block diagram of an electronic device 300 according to an exemplary embodiment, and the content of the diagram should not be construed as any limitation on the scope of use of the present application.

In particular, the electronic device 300 may include at least one processor 310, at least one memory 320, a power supply 330, a communication interface 340, an input-output interface 350, and an input-output interface 350. Wherein the memory 320 is used for storing a computer program 322, and the computer program 322 is loaded and executed by the processor 310 to implement the relevant steps in the probe positioning method disclosed in any of the foregoing embodiments. In addition, the electronic apparatus 300 in the present embodiment may be specifically an electronic computer.

In this embodiment, the power supply 330 is configured to provide working voltages for each hardware device on the electronic device 300, the communication interface 340 is configured to create a data transmission channel between the electronic device 300 and an external device, and the communication protocol to be followed is any communication protocol applicable to the technical solution of the present application, which is not specifically limited herein, and the input/output interface 350 is configured to obtain external input data or output data to the external device, and the specific interface type of the input/output interface may be selected according to the specific application needs and is not specifically limited herein.

The memory 320 may be a carrier for storing resources, such as a rom 320, a ram 320, a magnetic disk, or an optical disk, and the resources stored thereon may include an operating system 321, a computer program 322, and the like, and the storage may be temporary storage or permanent storage.

The operating system 321 is used to manage and control various hardware devices on the electronic device 300 and the computer program 322, which may be Wi ndows Server, netware, un ix, li nux, and the like. The computer program 322 may further include a computer program 322 that can be used to perform other specific tasks in addition to the computer program 322 that can be used to perform the probe localization method performed by the electronic device 300 as disclosed in any of the previous embodiments.

In some embodiments, a computer readable storage medium is provided for storing a computer program 322, which computer program 322, when executed by the processor 310, implements the probe localization method disclosed previously. For specific steps of the method, reference may be made to the corresponding contents disclosed in the foregoing embodiments, and no further description is given here.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by the processor 310, or in a combination of the two. The software modules may be disposed in random access memory 320 (RAM), memory, read only memory 320 (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims

1. An OCT endoscope system, the OCT endoscope system comprising:

An OCT scanning probe having a probe tube;

The at least two image acquisition modules are arranged on the OCT scanning probe and far away from the probe tube, the image acquisition modules are provided with view fields and acquisition ends, the image acquisition modules are used for acquiring image information of the view fields, and the acquisition ends of the at least two image acquisition modules are arranged at intervals along the circumferential direction of the probe tube, so that all the view fields of the at least two image acquisition modules can cover the circumferential side of the far end of the probe tube;

2. The OCT endoscope system of claim 1, wherein the OCT scanning probe further comprises:

3. The OCT endoscope system of claim 1, wherein the probe tube comprises at least two tube segments connected in sequence, wherein an outer diameter of the tube segment facing away from the proximal end of the probe tube is smaller than an outer diameter of the tube segment near the proximal end of any adjacent two of the tube segments.

4. The OCT endoscope of claim 1, wherein a centerline of the field of view is tangential to an edge of a distal end face of the probe tube.

5. The OCT endoscope of claim 1 or 4, wherein the image acquisition module comprises a circuit board, a camera module and at least one light source module, the camera module and the at least one light source module are located at the acquisition end, the camera module and the at least one light source module are both disposed on an element surface of the circuit board, the camera module and the at least one light source module are both electrically connected with the circuit board, the circuit board and the data processing module are electrically connected, and the circuit board is disposed on the OCT scanning probe.

6. The OCT endoscope system of claim 5, wherein the OCT scanning probe further comprises a probe holder, the probe holder and the proximal end of the probe tube are connected, one end of the probe holder near the probe tube has a support portion, an end surface of one end of the support portion facing away from the probe holder is a mounting end surface, the mounting end surface is abutted against a soldering surface of the circuit board, and an angle between the mounting end surface and an axis of the probe tube is configured such that a center line of the field of view is tangent to an edge of a distal end surface of the probe tube.

7. The OCT endoscope system of claim 6, wherein the OCT scanning probe further comprises a cover plate, the cover plate has a light source window and a lens window, the cover plate is connected with one end of the probe seat near the probe tube, such that a mounting cavity is defined between the cover plate and the probe seat, the camera modules and the light source modules are both located in the mounting cavity, each camera module corresponds to the lens window, and each light source module corresponds to the light source window.

8. The OCT endoscope of claim 6, wherein the number of supports is a plurality, wherein there is a gap between adjacent supports, and wherein there is a gap between the circuit board and the mounting end.

9. A probe positioning method applied to the OCT endoscope system of any one of claims 1 to 8, the probe positioning method comprising:

10. An electronic device, comprising:

a memory for storing a computer program;

A processor for executing the computer program to implement the probe positioning method of claim 9.

11. A computer readable storage medium storing a computer program which when executed by a processor implements the probe localization method of claim 9.