Endoscope system and control method

Abstract

The present disclosure provides an endoscope system, which comprises: a cold light source host for generating a cold light source; an endoscope for receiving the cold light source generated by the cold light source host and providing the cold light source to a biological tissue; a camera assembly for receiving reflected light of the human tissue transmitted through the endoscope and generating a biological tissue image; an optical cable connected to the endoscope and the cold light source host and transmitting the above-mentioned cold light source through the optical cable; and a detection light path, one end of which is located at the cold light source host and the other end of which is located at the camera assembly, when detection light is transmitted from one end to the other end of the detection light path, it is judged that the connection between the cold light source host and the endoscope is normal and the connection between the endoscope and the camera assembly is normal. The present disclosure also provides a control method of an endoscope system.

Description

Technical Field

[0001] This disclosure relates to an endoscope system and control method, belonging to the field of medical device technology. Background Technology

[0002] Because endoscopes can clearly capture images of diseased tissues inside a patient's body and display them on a medical monitor, making it easier for doctors to diagnose and treat lesions, endoscopes have become an indispensable piece of medical equipment in surgical procedures.

[0003] Existing endoscopic systems typically consist of a camera, a camera unit, a cold light source unit, an optical fiber cable, and an endoscope. In practical applications, these components must be connected in an orderly manner. The optical fiber cable connects the endoscope to the cold light source unit, and the camera connects the endoscope to the camera unit. Failure to properly connect any component will prevent the endoscopic system from functioning correctly, thus hindering surgical procedures.

[0004] On the other hand, the light source in the cold light source host generally has a very high light intensity, and some cold light sources even contain near-infrared lasers. If the endoscope system is not properly connected before the cold light source host is turned on, for example, the optical cable is not connected to the cold light source host, or the endoscope is not connected to the optical cable, then the high intensity light emitted from the light outlet of the cold light source host may cause the operator to be dazzled or burned.

[0005] Existing endoscope systems can detect the connection status of some components. For example, detection devices can be installed at both ends of the optical cable connection and connected to the light source control device. This allows the control device to control the light source to turn on and off based on the detection results, reducing the risk of unsuccessful connection or abnormal connection. However, existing technologies do not include methods for detecting the connection status of the entire endoscope system. Summary of the Invention

[0006] To address one of the aforementioned technical problems, this disclosure provides an endoscope system and control method.

[0007] According to one aspect of this disclosure, an endoscope system is provided, comprising:

[0008] A cold light source host, which is used to generate a cold light source;

[0009] An endoscope, wherein the endoscope is used to receive a cold light source generated by a cold light source host and to provide the cold light source to biological tissue;

[0010] A camera assembly for receiving reflected light from human tissue transmitted via an endoscope and generating images of biological tissue;

[0011] An optical fiber cable, wherein the optical fiber cable connects the endoscope and the cold light source host, and transmits the aforementioned cold light source through the optical fiber cable; and

[0012] The detection optical path has one end located at the cold light source host and the other end located at the camera assembly. When the detection light is transmitted from one end to the other end of the detection optical path, it is determined that the connection between the cold light source host and the endoscope is normal, and the connection between the endoscope and the camera assembly is normal.

[0013] According to at least one embodiment of the endoscope system of this disclosure, one of the camera assembly and the cold light source host is provided with a detection light emitting module, and the other of the camera assembly and the cold light source host is provided with a detection light receiving module. When the detection light emitted by the detection light emitting module is received by the detection light receiving module, it is determined that the detection light can be transmitted from one end of the detection light path to the other end.

[0014] According to at least one embodiment of the endoscope system of the present disclosure, at least a portion of the detection optical path is formed in the optical cable.

[0015] According to at least one embodiment of the endoscope system of the present disclosure, an auxiliary optical fiber is disposed inside the optical cable, the auxiliary optical fiber being used to transmit the detection light emitted by the detection light emitting module.

[0016] According to at least one embodiment of the endoscope system of the present disclosure, at least a portion of the detection optical path is formed in the endoscope.

[0017] According to at least one embodiment of the endoscope system disclosed herein, the endoscope includes an optical cable connector, one end of which is connected to the optical cable connector; when the optical cable is properly connected to the endoscope, the detection optical path in the endoscope and the detection optical path in the optical cable can transmit detection light to each other.

[0018] According to at least one embodiment of the endoscope system of the present disclosure, the endoscope and the camera assembly are connected by a snap-fit, such that the axial position and circumferential position between the endoscope and the camera assembly are defined.

[0019] According to at least one embodiment of the endoscope system of this disclosure, when the detection light cannot be transmitted from one end of the detection optical path to the other end, it is determined that the connection between the cold light source host and the endoscope is abnormal and / or the connection between the endoscope and the camera assembly is abnormal.

[0020] According to at least one embodiment of the endoscope system of this disclosure, the detection light is near-infrared light.

[0021] According to another aspect of this disclosure, a control method for the above-described endoscope system is provided, characterized in that it includes:

[0022] The cold light source host and camera assembly are powered on.

[0023] A detection light is applied to one end of the detection optical path, and it is determined whether the other end of the detection optical path can receive the detection light. When the other end of the detection optical path receives the detection light, it is determined that the connection between the cold light source host and the endoscope is normal, as is the connection between the endoscope and the camera assembly.

[0024] When the connection between the cold light source host and the endoscope is normal, and the connection between the endoscope and the camera assembly is normal, the cold light source host is controlled to emit a cold light source. Attached Figure Description

[0025] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0026] Figure 1 This is a schematic diagram of an endoscope system according to one embodiment of the present disclosure.

[0027] Figure 2 This is a schematic diagram of the structure of a cold light source host according to one embodiment of the present disclosure.

[0028] Figure 3 This is a schematic diagram of the structure of an optical cable according to one embodiment of the present disclosure.

[0029] Figure 4 This is a schematic diagram of the combined state of a cold light source host and an optical cable according to one embodiment of the present disclosure.

[0030] Figure 5 This is a schematic diagram of the endoscope and camera assembly combined in one embodiment of the present disclosure.

[0031] Figure 6 This is a schematic diagram of the endoscope and optical cable separated according to one embodiment of the present disclosure.

[0032] Figure 7 This is a flowchart of a control method for an endoscope system according to one embodiment of the present disclosure.

[0033] The specific labels in the attached figures are as follows:

[0034] 100 Cold Light Source Main Unit

[0035] 101 light module

[0036] 102 Detection Light Emission Module

[0037] 103 main control module

[0038] 104 connector cable interface

[0039] 105 fiber optic cable connector

[0040] 106 limit component

[0041] 107 ring protrusions

[0042] 108 Positioning Department

[0043] 200 endoscopes

[0044] 201 Optical Cable Connection Section

[0045] 202 circumferential limit components

[0046] 203 main optical path channel

[0047] 204 auxiliary optical path channels

[0048] 205 Insertion Section

[0049] 300 camera components

[0050] 301 Detection Optical Receiver Module

[0051] 400 fiber optic cable

[0052] 401 First Through Hole

[0053] 402 Second Through Hole

[0054] 403 Extension

[0055] 404 connection structure

[0056] 405 First Limiting Component

[0057] 406 Sleeve Section

[0058] 407 Second Limiting Component

[0059] 408 countersunk hole

[0060] 409 First end face

[0061] 500 camera host. Detailed Implementation

[0062] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0063] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0064] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0065] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0066] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0067] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0068] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0069] Figure 1 This is a schematic diagram of an endoscope system according to one embodiment of the present disclosure.

[0070] like Figure 1 As shown, the endoscope system disclosed herein includes components such as a cold light source host 100, an endoscope 200, a camera assembly 300, an optical fiber 400, and a detection optical path. The endoscope 200 is mechanically connected to one end of the optical fiber 400, and the endoscope 200 is also mechanically connected to the camera assembly 300; the other end of the optical fiber 400 is mechanically connected to the cold light source host 100; the camera assembly 300 is also electrically connected to a camera host 500; and the camera host 500 is electrically connected to the cold light source host 100.

[0071] Figure 2 This is a schematic diagram of the structure of a cold light source host according to one embodiment of the present disclosure.

[0072] like Figure 2 As shown, the cold light source host 100 is a high-power semiconductor light source used to generate illumination light signals, which are the cold light sources. More specifically, the cold light source host 100 includes components such as a light emission module 101, a light emission detection module 102, a main control module 103, a connecting cable interface 104, and an optical cable connector 105.

[0073] The connection cable interface 104 is located at the rear of the cold light source host 100 and can be connected to the camera host 500 via a cable, thereby enabling communication between the cold light source host 100 and the camera host 500. For example, the cold light source host 100 can receive control signals from the camera host 500 and execute these control signals through the main control module 103. In other words, at this time, the main control module 103 can communicate with the camera host 500.

[0074] The light-emitting module 101 is a high-power light-emitting device, meaning it can emit illumination light signals outwards. The light-emitting module 101 can be controlled by the main control module 103 to enable it to turn on or off, and to operate at a predetermined power.

[0075] The detection light emitting module 102 is a near-infrared light emitter, meaning it can emit near-infrared light, which can be continuous, intermittent, or at a fixed frequency. This near-infrared light is parallel to the illumination light signal emitted by the light-emitting module 101. Correspondingly, the detection light emitting module 102 can also be controlled by the main control module 103 to turn it on or off, and to operate in a preset state.

[0076] In this disclosure, the main control module 103 is an embedded control module, which can be implemented by a microcontroller or DSP processor. The main control module 103 can be connected to the light output module 101 and the light emission detection module 102, thereby controlling the light output module 101 and the light emission detection module 102.

[0077] The optical cable connector 105 is located at the front end of the cold light source host 100. The optical cable connector 105 is formed into a hole shape. In a preferred embodiment, the optical cable connector 105 can be formed into a circular hole shape, so that the optical cable 400 can be connected through the optical cable connector 105. Correspondingly, the illumination light emitted by the light emission module 101 and the near-infrared light emitted by the detection light emission module 102 can both be emitted outward through the optical cable connector 105.

[0078] In a preferred embodiment, a limiting member 106 is provided inside the optical cable connector 105, the structure of which will be described in detail below.

[0079] like Figure 1 As shown, the endoscope 200 is a core component for optical imaging. Specifically, the endoscope 200 is used to receive the cold light source generated by the cold light source host 100 and provide the cold light source to biological tissue. For example, the endoscope 200 can provide the cold light source to the lesion site of the patient, so as to facilitate the doctor's diagnosis or treatment of the lesion site.

[0080] The optical cable 400 is connected to the endoscope 200 and the cold light source host 100. Specifically, one end of the optical cable 400 can be connected to the optical cable connection part 201 of the endoscope 200, and the other end of the optical cable 400 can be connected to the optical cable connection port 105 of the cold light source host 100. Thus, the optical cable 400 can transmit the aforementioned cold light source.

[0081] Figure 3 This is a schematic diagram of the structure of an optical cable according to one embodiment of the present disclosure.

[0082] like Figure 3 As shown, the optical cable 400 includes a first through hole 401 and a second through hole 402 disposed along the length direction of the optical cable 400. The cold light source can be transmitted through the first through hole 401. In one embodiment, an optical fiber can be disposed within the first through hole 401, thereby enabling the transmission of the cold light source through the optical fiber. The diameter of the second through hole 402 is smaller than that of the first through hole 401, allowing detection light to be transmitted through the second through hole 402. Correspondingly, an optical fiber can also be disposed within the second through hole, allowing detection light to be transmitted through the optical fiber.

[0083] Meanwhile, considering that the optical cable 400 is generally designed to be flexible, it is a preferred technical solution to place optical fibers in the first through hole 401 and the second through hole 402. In this disclosure, when the optical cable 400 is designed to be non-flexible, optical fibers may not be placed in the first through hole 401 and the second through hole 402. In this case, the cold light source and the detection light can be transmitted in the first through hole 401 and the second through hole 402 respectively.

[0084] See again Figure 3One end of the optical cable 400 is provided with a countersunk hole 408, which has a bottom wall that is perpendicular or substantially perpendicular to the central axis of the optical cable 400. Correspondingly, the area of ​​the bottom wall of the countersunk hole 408 corresponding to the first through hole 401 forms the main optical path light-emitting end face, through which a cold light source is emitted outward; correspondingly, the area of ​​the bottom wall of the countersunk hole 408 corresponding to the second through hole forms the auxiliary optical path light-emitting end face, through which detection light (near-infrared light) is emitted outward.

[0085] Meanwhile, one end of the optical cable 400 also has an extension 403, the inner surface of which forms at least a portion of the sidewall of the countersunk hole 408. A stepped portion is formed between the outer surface of the extension 403 and the first end face 409 of the optical cable 400, and along the axial direction of the optical cable 400, the first end face 409 is located between the bottom wall of the countersunk hole 408 and the free end of the extension, thereby allowing the countersunk hole 408 to have a certain depth, thus making the connection between the optical cable 400 and the endoscope 200 more stable.

[0086] In a preferred embodiment, the outer surface of the extension 403 is formed with external threads; at the same time, a connecting structure 404 is sleeved on the extension 403, one end of the connecting structure 404 is in contact with the first end face 409, and an inner flange structure is formed at one axial end of the connecting structure 404, which is disposed close to the first end face 409.

[0087] An outer nut is provided on the extension 403. The outer nut can restrict the inner flange structure between the outer nut and the first end face 409, that is, restrict the movement of the connecting structure 404 along the axial direction (length direction) of the optical cable 400.

[0088] In this disclosure, the connecting structure 404 can be a nut, and the connecting structure 404 is configured to rotate freely. That is, the outer nut and the first end face 409 described above do not restrict the rotational freedom of the connecting structure 404.

[0089] In one embodiment, the inner wall surface of the extension 403, i.e. the inner wall surface of the countersunk hole 408, is provided with a first limiting member 405. The first limiting member 405 can cooperate with the aforementioned circumferential limiting member 202, so that the optical cable 400 can be properly connected to the endoscope 200.

[0090] The other end of the optical cable 400 is formed as a planar end face with a chamfer, thereby allowing the optical cable 400 to be easily inserted into the optical cable connector 105 of the cold light source host 100.

[0091] Accordingly, the other end of the optical cable 400 forms the main optical path light-inlet end face with the corresponding area of ​​the first through hole 401; the other end of the optical cable 400 forms the auxiliary optical path light-inlet end face with the corresponding area of ​​the second through hole 402.

[0092] Figure 4 This is a schematic diagram of the combined state of a cold light source host and an optical cable according to one embodiment of the present disclosure.

[0093] like Figure 3 and Figure 4 As shown, a sleeve portion 406 is fixed to the other end of the optical cable 400. An annular groove is formed on the outer wall surface of the sleeve portion 406. Correspondingly, an annular protrusion 107 is formed on the inner wall surface of the limiting member 106 of the cold light source host 100. The position of the optical cable 400 relative to the cold light source host 100 in the length direction of the optical cable 400 is limited by the cooperation between the annular protrusion 107 and the annular groove.

[0094] In addition, a second limiting member 407 is provided at the other end of the optical cable 400. The second limiting member 407 can be formed as a cut. One surface of the cut is parallel to the length direction of the optical cable 400, and the other surface of the cut can be set to be parallel to the end face of the other end of the optical cable 400.

[0095] Accordingly, the limiting member 106 also includes a positioning part 108. When the optical cable 400 is installed on the cold light source host 100, the positioning part 108 can be located in the cut and the circumferential position of the optical cable 400 can be restricted by the positioning part 108.

[0096] More specifically, the positioning part 108 includes a contact surface, which can be formed as a plane, and this planar contact surface can contact a surface of the second limiting member 407. In this case, compared to the sleeve part 406, the second limiting member 407 is closer to the other end of the optical cable 400. Correspondingly, compared to the annular protrusion 107, the positioning part 108 is located closer to the interior of the cold light source host 100.

[0097] In other words, through the cooperation of the limiting member 106 with the annular groove of the sleeve portion 406 and the second limiting member 407, the optical cable 400 can be restricted in both the axial and circumferential directions relative to the cold light source host 100. Thus, the first through hole 401 (the light-inlet end face of the main optical path) can coincide with the central axis of the light-emitting surface of the light-emitting module 101. Preferably, the first through hole 401 (the light-inlet end face of the main optical path) can be in contact with the light-emitting surface of the light-emitting module 101. Accordingly, the light emitted by the light-emitting module 101 can be transmitted through the first through hole 401, and the second through hole 402 (auxiliary light path light inlet end face) can coincide with the central axis of the light-emitting end face of the detection light emitting module 102. Preferably, the second through hole 402 (auxiliary light path light inlet end face) can contact the light-emitting end face of the detection light emitting module 102. At this time, the detection light emitted by the detection light emitting module 102 can be transmitted through the second through hole 402.

[0098] In a preferred embodiment, the limiting member 106 is made of metal material, and correspondingly, the annular protrusion 107 and the positioning part 108 are both formed as metal protrusion structures and are located inside the optical cable connector 105 at the front end of the cold light source host 100.

[0099] Figure 5 This is a schematic diagram of the endoscope and camera assembly combined in one embodiment of the present disclosure. Figure 6 This is a schematic diagram of the endoscope and optical cable separated according to one embodiment of the present disclosure.

[0100] like Figure 5 and Figure 6 As shown, the camera assembly 300 is used to receive reflected light from human tissue transmitted via the endoscope 200 and generate biological tissue images. Specifically, the camera assembly 300 is an image acquisition device with an image sensor, used for image acquisition and electrical signal conversion. Correspondingly, the camera assembly 300 is connected to the camera host 500 via a cable. The camera host 500 is an FPGA-based image processing unit used for image conversion and optimization. Moreover, the camera host 500 can also send control commands to the cold light source host 100 to control the working state of the light emission module 101 and the detection light emission module 102 of the cold light source host 100, such as controlling the light emission module 101 and the detection light emission module 102 to turn on and off, and controlling the working power of the light emission module 101 and the detection light emission module 102.

[0101] In this disclosure, the cable is an integrated harness of multiple signal lines, thereby enabling data transmission between the camera assembly 300 and the camera host 500, and enabling control commands to be transmitted between the camera host 500 and the cold light source host 100.

[0102] In one embodiment, the endoscope 200 includes an optical cable connector 201 and a circumferential limiting component 202. The endoscope 200 also includes a main optical path channel 203 and an auxiliary optical path channel 204 internally. In a preferred embodiment, the main optical path channel 203 may contain an optical fiber for transmitting a cold light source. Correspondingly, the auxiliary optical path channel 204 may also contain a single optical fiber for transmitting near-infrared light. Alternatively, the auxiliary optical path channel 204 may not contain an optical fiber, but instead may contain optical devices that can change the direction of light propagation, such as a reflector.

[0103] The endoscope 200 further includes an insertion portion 205, which comprises a portion of the main optical path channel 203 and the auxiliary optical path channel 204. The insertion portion 205 can be inserted into the countersunk hole 408 of the optical cable 400. Correspondingly, the end face of the insertion portion 205 is generally planar. The portion of the end face of the insertion portion 205 relative to the main optical path channel 203 forms the main optical path light-incident surface, and the portion of the end face of the insertion portion 205 relative to the auxiliary optical path channel 204 forms the auxiliary optical path light-incident surface. The main optical path light-incident surface of the insertion portion 205 can coincide with the central axis of the main optical path light-out end face of the optical cable 400. Preferably, the main optical path light-incident surface of the insertion portion 205 can contact the main optical path light-out end face of the optical cable 400, thereby enabling the transmission of a cold light source from the optical cable 400 to the endoscope 200. Accordingly, the light-incident surface of the auxiliary light path of the insertion part 205 can coincide with the central axis of the light-outcident end face of the auxiliary light path of the optical cable 400, and preferably, the light-incident surface of the auxiliary light path of the insertion part 205 can be in contact with the light-outcident end face of the auxiliary light path of the optical cable 400, so that the detection light can be transmitted from the optical cable 400 to the endoscope 200.

[0104] In one embodiment, the optical cable connector 201 can be formed with an external thread, thereby fixing the connector 404 to the optical cable connector 201 by means of thread engagement.

[0105] Furthermore, the circumferential limiting member 202 is formed as a protrusion located on the outer surface of the insertion portion 205 and extending along the axial direction of the insertion portion 205. Correspondingly, the first limiting member 405 is formed as a groove formed on the sidewall of the countersunk hole 408 and is configured to extend along the axial direction of the countersunk hole 408. Thus, the circumferential position of the optical cable 400 and the endoscope 200 is fixed by the cooperation of the protrusion and the groove.

[0106] In this disclosure, the camera assembly 300 includes a detection light receiving module 301, wherein the detection light receiving module 301 is disposed adjacent to the auxiliary light path exit surface of the auxiliary light path channel 204, thereby enabling the detection light receiving module 301 to receive the detection light transmitted through the auxiliary light path channel 204. In one embodiment, the auxiliary light path channel 204 is formed with a bent structure, thereby the auxiliary light path entrance surface and the auxiliary light path exit surface of the auxiliary light path channel 204 are located on different planes.

[0107] Generally speaking, one end of the detection optical path is located at the cold light source host 100, and the other end is located at the camera assembly 300. When the detection light is transmitted from one end to the other end of the detection optical path, it is determined that the connection between the cold light source host 100 and the endoscope 200 is normal, and the connection between the endoscope 200 and the camera assembly 300 is normal. When the detection light cannot be transmitted from one end to the other end of the detection optical path, it is determined that the connection between the cold light source host 100 and the endoscope 200 is abnormal, and / or the connection between the endoscope 200 and the camera assembly 300 is abnormal. More specifically, the detection optical path may include the aforementioned second through hole 402 and auxiliary optical path channel 204.

[0108] In another embodiment, the detection light emitting module of this disclosure can also be disposed in the camera assembly 300, and correspondingly, the detection light receiving module 301 is disposed in the cold light source host 100; accordingly, when the detection light emitted by the detection light emitting module is received by the detection light receiving module, it is determined that the detection light can be transmitted from one end of the detection light path to the other end, and correspondingly, the connection between the optical cable connector 201 and the connection structure 404 is normal, and the connection between the circumferential limiting component 202 and the first limiting component 405 is normal; at this time, the connection between the cold light source host 100 and the endoscope 200 is normal, and the connection between the endoscope 200 and the camera assembly 300 is normal.

[0109] In this disclosure, the endoscope 200 and the camera assembly 300 are connected by a snap-fit ​​connection, thereby restricting both the axial and circumferential positions of the endoscope 200 and the camera assembly 300, so that the auxiliary optical path channel 204 can coincide with the central axis of the detection light receiving module 301.

[0110] Figure 7 This is a flowchart of a control method for an endoscope system according to one embodiment of the present disclosure.

[0111] like Figure 7As shown, in the control method of the endoscope system disclosed herein, the endoscope system is the endoscope system described above, and the control method of the endoscope system includes: powering on the cold light source host 100 and the camera assembly 300, applying detection light to one end of the detection optical path, and determining whether the other end of the detection optical path can receive the detection light; when the other end of the detection optical path receives the detection light, determining that the connection between the cold light source host 100 and the endoscope 200 is normal and the connection between the endoscope 200 and the camera assembly 300 is normal; and when the connection between the cold light source host 100 and the endoscope 200 is normal and the connection between the endoscope 200 and the camera assembly 300 is normal, controlling the cold light source host 100 to emit a cold light source.

[0112] On the other hand, when the detection light cannot be transmitted from one end of the detection light path to the other end, it is determined that the connection between the cold light source host 100 and the endoscope 200 is abnormal and / or the connection between the endoscope 200 and the camera assembly 300 is abnormal. At this time, the cold light source host 100 controls the light output module 101 to be turned off or kept off. Accordingly, the cold light source host 100 does not emit cold light outward.

[0113] In other words, in the endoscope system and control method disclosed herein, the cold light source host can only emit a cold light source when it is detected that all components of the endoscope system are connected normally. This solves the interference of external factors on the detection device, increases the reliability of the system while ensuring the function of the endoscope system, and effectively prevents the operator from being dazzled or burned by accidental light emission when the components are connected abnormally.

[0114] More specifically, the control method of this endoscope system can form a closed-loop feedback loop for the entire endoscope system in the form of electrical signal-optical signal-electrical signal.

[0115] For example, after the cold light source host 100 and the camera host 500 are powered on, the camera host 500 can continuously send a handshake connection signal to the cold light source host 100; the cold light source host 100 continuously detects this handshake connection signal; when the cold light source host 100 detects the handshake connection signal, it indicates that the circuit connection between the cold light source host 100 and the camera host 500 is normal. Conversely, when the cold light source host 100 does not detect the handshake connection signal, it indicates that the cable between the cold light source host 100 and the camera host 500 is not correctly connected.

[0116] When the cold light source host 100 detects the handshake connection electrical signal, it controls the detection light emission module to work, and causes the detection light emission module to continuously, intermittently or at a certain fixed protocol frequency to emit near-infrared light signals.

[0117] The detection light receiving module inside the camera assembly 300 detects in real time whether it receives the specific light signal emitted by the detection light emitting module; if the detection is successful, it means that the optical cable and the endoscope, as well as the optical cable and the cold light source host are connected normally, and the endoscope and the camera assembly are connected normally.

[0118] Then, the camera assembly transmits the detection results to the camera host via cable in the form of an electrical signal; the camera host transmits the information that the endoscope system has been correctly connected to the cold light source host via cable in the form of an electrical signal; the cold light source host can only control the light-emitting module to emit light after receiving the information that all components are correctly connected, otherwise it cannot emit light.

[0119] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0120] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0121] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An endoscope system, characterized in that, include: A cold light source host, which is used to generate a cold light source; An endoscope, wherein the endoscope is used to receive a cold light source generated by a cold light source host and to provide the cold light source to biological tissue; A camera assembly for receiving reflected light from human tissue transmitted via an endoscope and generating images of biological tissue; An optical fiber cable connects the endoscope and the cold light source host, and transmits the aforementioned cold light source through the optical fiber cable; as well as The detection optical path has one end located at the cold light source host and the other end located at the camera assembly. When the detection light is transmitted from one end to the other end of the detection optical path, it is determined that the connection between the cold light source host and the endoscope is normal and the connection between the endoscope and the camera assembly is normal. The cold light source host includes a detection light emitting module, and the camera assembly includes a detection light receiving module. When the detection light emitted by the detection light emitting module is received by the detection light receiving module, it is determined that the detection light can be transmitted from one end of the detection light path to the other end. The optical cable includes a first through hole and a second through hole arranged along the length of the optical cable. An optical fiber is disposed in the first through hole, and the cold light source is transmitted through the optical fiber in the first through hole. The diameter of the second through hole is smaller than that of the first through hole, and an auxiliary optical fiber is disposed in the second through hole, through which the detection light can be transmitted. The endoscope includes a main optical path channel, an auxiliary optical path channel, and an insertion section. An optical fiber is installed in the main optical path channel to transmit a cold light source. An optical fiber is installed in the auxiliary optical path channel to transmit detection light. The insertion section is inserted into the countersunk hole of the optical cable. The end face of the insertion section is generally planar, with the portion of the end face relative to the main optical path channel forming the main optical path light-incident surface, and the portion of the end face relative to the auxiliary optical path channel forming the main optical path light-incident surface. A portion of the insertion part is formed as an auxiliary light path light-incident surface; the main light path light-incident surface of the insertion part coincides with the central axis of the main light path light-out end face of the optical cable, and the main light path light-incident surface of the insertion part can contact the main light path light-out end face of the optical cable, thereby transmitting the cold light source from the optical cable to the endoscope; the auxiliary light path light-incident surface of the insertion part can coincide with the central axis of the auxiliary light path light-out end face of the optical cable, and the auxiliary light path light-incident surface of the insertion part can fit against the auxiliary light path light-out end face of the optical cable, thereby transmitting the detection light from the optical cable to the endoscope; The endoscope includes an optical cable connector, one end of which is connected to the optical cable connector. When the optical cable is properly connected to the endoscope, the detection optical path in the endoscope and the detection optical path in the optical cable can transmit detection light to each other. The detection light receiving module is disposed adjacent to the auxiliary optical path exit surface of the auxiliary optical path channel, and the detection light receiving module receives the detection light transmitted through the auxiliary optical path channel. The auxiliary optical path channel is formed with a bent structure, and the auxiliary optical path entrance surface and the auxiliary optical path exit surface are located on different planes. The camera assembly is connected to the proximal end of the endoscope via a snap-fit ​​connection, thus defining both the axial and circumferential positions between the endoscope and the camera assembly; the auxiliary optical path channel coincides with the central axis of the detection light receiving module. Specifically, when the connection between the cold light source host and the endoscope is normal, and the connection between the endoscope and the camera assembly is normal, the cold light source host is controlled to emit a cold light source.

2. The endoscope system according to claim 1, characterized in that, When the detection light cannot be transmitted from one end of the detection optical path to the other end, it is determined that the connection between the cold light source host and the endoscope is abnormal and / or the connection between the endoscope and the camera assembly is abnormal.

3. The endoscope system according to claim 1, characterized in that, The detection light is near-infrared light.

4. A control method for an endoscope system as described in any one of claims 1-3, characterized in that, include: The cold light source host and camera assembly are powered on. Apply detection light to one end of the detection optical path and determine whether the other end of the detection optical path can receive the detection light; When the detection light is received at the other end of the detection optical path, it is determined that the connection between the cold light source host and the endoscope is normal, as is the connection between the endoscope and the camera assembly. as well as When the connection between the cold light source host and the endoscope is normal, and the connection between the endoscope and the camera assembly is normal, the cold light source host is controlled to emit a cold light source.

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