Medical observation system, control device, control method, and endoscope connection line thereof

Abstract

The present application provides a medical observation system and its control device, control method, and endoscope connecting line. The medical observation system includes an endoscope, a host, and a connecting line electrically connecting the endoscope and the host; the method includes: when the host and the endoscope are electrically connected, obtaining the electrical connection time between the endoscope and the connecting line; when the host and the endoscope are in an electrically connected state, based on the electrical connection time, updating the electrical connection time between the endoscope and the connecting line; when the electrical connection time reaches the preset limit usage time, cutting off the communication connection between the endoscope and the host. The present application reduces the risk of the endoscope being used a second time.

Description

Technical Field

[0001] The present disclosure relates to the field of endoscopes, and in particular to a medical observation system and a control device and method thereof, and an endoscope connecting line. Background Art

[0002] An endoscope is a commonly used medical device. It includes an insertion portion for direct insertion into the human body, a bending portion that can be bent at will, and a handle for manual control. The handle includes an interface. When in use, the interface is connected to the host through a data cable, and then the endoscope is started to work.

[0003] Since the insertion part of the endoscope needs to be inserted deep into the human body for surgery, in order to avoid cross infection, the endoscope generally needs to be fully disinfected. However, due to the complicated disinfection process, disposable endoscopes came into being. However, the current disposable endoscopes cannot avoid the problem of artificial secondary use, and there is a risk of surgical cross infection caused by artificial secondary use.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] An object of the present disclosure is to provide a control method for a medical observation system to reduce the possibility of a secondary use of an endoscope.

[0006] In order to solve the above technical problems, the present disclosure adopts the following technical solutions:

[0007] According to one aspect of the present disclosure, the present disclosure provides a control method for a medical observation system, the medical observation system comprising an endoscope, a host, and a connection line electrically connecting the endoscope and the host; the method comprises:

[0008] When the host and the endoscope are electrically connected, obtaining the duration of the electrical connection between the endoscope and the connecting line;

[0009] If the duration of electrical connection of the endoscope is less than or equal to the reference duration, updating the duration of electrical connection between the endoscope and the connecting line based on the duration of electrical connection;

[0010] When the electrical connection time reaches a preset limit usage time, the communication connection between the endoscope and the host is cut off.

[0011] According to an embodiment of the present application, an ambient light sensor is provided on the curved portion of the endoscope; the step of updating the electrical connection time between the endoscope and the connecting line based on the electrical connection time when the host and the endoscope are in electrical connection includes:

[0012] When the host and the endoscope are in electrical communication, the proportion of red light in the light signal collected by the ambient light sensor;

[0013] If the ambient light sensor detects that the red light ratio is greater than a preset threshold, timing is started for the host and the endoscope to be in an electrically connected state.

[0014] According to an embodiment of the present application, before the step of cutting off the communication connection between the endoscope and the host when the electrical connection time reaches a preset limit usage time, the method further includes:

[0015] When the electrical connection time reaches a preset regular usage time, a first alarm message is issued; wherein the regular usage time is less than the limit usage time.

[0016] According to an embodiment of the present application, the connection line has a display module; when the electrical connection time reaches a preset limit usage time, the communication connection between the endoscope and the host is cut off, including:

[0017] When the duration of the electrical connection reaches the limit usage duration, a second alarm message is issued; wherein the second alarm message is more alarming than the first alarm message;

[0018] Starting a countdown on the display module and counting a first duration;

[0019] When the countdown is completed, the communication connection between the endoscope and the host is cut off.

[0020] According to an embodiment of the present application, when the electrical connection time reaches a preset limit usage time, the step of cutting off the communication connection between the endoscope and the host further includes:

[0021] Before the preset limit usage time is reached, if a delay general instruction is received, the limit usage time is extended according to the delay general instruction, and the relevant information of the new limit usage time is updated on the display module;

[0022] When the electrical connection time reaches the new limit usage time, the communication connection between the endoscope and the host is cut off.

[0023] According to an embodiment of the present application, before the preset limit usage time is reached, if a delay general instruction is received, after the step of extending the limit usage time according to the delay general instruction, the method further includes:

[0024] Before the new limit usage time is reached, if a special delay instruction is received, the current limit usage time is extended again according to the special delay instruction; wherein the special delay instruction is issued by the authorization key.

[0025] According to an embodiment of the present application, the method further includes:

[0026] After the endoscope leaves the human body, obtain the time extension data issued by the authorization shield;

[0027] If the time extension data is greater than a preset time extension range, the time extension is judged to be abnormal, thereby marking that the endoscope has been used.

[0028] According to an embodiment of the present application, when the host and the endoscope are electrically connected, the step of obtaining the electrical connection time between the endoscope and the connecting line includes:

[0029] When the endoscope is in electrical communication with the host, obtaining identity information of the endoscope;

[0030] Searching the identity information of the endoscope in the identity information database of the endoscope to determine the duration of electrical connection between the endoscope and the connecting line; wherein the identity information database is used to record the identity information of the endoscope that has been connected to the connecting line, and the duration of electrical connection of the endoscope corresponding to the identity information; wherein the duration of electrical connection of the endoscope is the cumulative duration of electrical connection between the endoscope and the connecting line;

[0031] When the identity information of the endoscope is not found, the timing of the endoscope starts from 0, and the identity information of the endoscope is stored in the identity information database.

[0032] According to an embodiment of the present application, when the host and the endoscope are electrically connected, the step of obtaining the electrical connection time between the endoscope and the connecting line includes:

[0033] When the endoscope is in electrical communication with the host, obtaining the host type;

[0034] When the host type is a test host, the timing of the electrical connection state between the endoscope and the test host is stopped.

[0035] The present application also provides a control device for a medical observation system, the medical observation system comprising an endoscope, a host, and a connection line electrically connecting the endoscope and the host; the control device comprises:

[0036] An electrical connection duration acquisition module, used for acquiring the electrical connection duration between the endoscope and the connecting line after the host and the endoscope are electrically connected;

[0037] An electrical connection duration recording module, used for updating the electrical connection duration between the endoscope and the connecting line based on the electrical connection duration when the host and the endoscope are in electrical connection;

[0038] The processing module is used to cut off the communication connection between the endoscope and the host when the electrical connection time reaches a preset limit usage time.

[0039] The present application also proposes an endoscope connecting line, comprising:

[0040] A first communication interface, used for plugging into an endoscope handle to send and receive a variety of communication signals with the endoscope;

[0041] A cable part, one end of which is connected to the first communication interface, and the other end of which is connected to the host;

[0042] an electrical connection duration recording module, electrically connected to the first communication interface, to record and update the electrical connection duration between the endoscope and the first communication interface;

[0043] The controller is electrically connected to the electrical connection duration recording module, and when the electrical connection duration reaches a preset limit usage duration, the communication connection between the endoscope and the host is cut off.

[0044] According to an embodiment of the present application, the connecting line also includes an alarm module, and the alarm module is used to issue a first alarm message when the electrical connection time reaches a preset regular usage time; wherein the regular usage time is less than the limit usage time.

[0045] According to an embodiment of the present application, the connecting line further includes a display module, the display module includes a housing and a display screen, the display screen is arranged on the housing; the first communication interface is located on one end of the housing, and the cable portion is passed through the other end of the housing and connected to the host;

[0046] The display screen is electrically connected to the electrical connection duration recording module to display the electrical connection duration recorded by the electrical connection duration recording module, or to display the remaining usage time of the endoscope.

[0047] According to one embodiment of the present application, the display screen is also used to update and display the limited usage time or update and display the remaining usage time of the endoscope according to the delayed general instruction received by the controller.

[0048] The present application also proposes a medical observation system, including an endoscope, a host and the above-mentioned connecting line.

[0049] In this embodiment, the length of time the endoscope has been electrically connected is recorded to determine the length of time the endoscope has been in use. When the length of time the endoscope has been electrically connected reaches a preset limit of usage time, the communication connection between the endoscope and the host is cut off to prevent the endoscope from being used any further, thereby preventing secondary use. Therefore, this application scheme improves the safety of endoscope use.

[0050] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0052] Figure 1 It is an overall schematic diagram of a medical observation system according to an embodiment of the present application.

[0053] Figure 2 is a flow chart of a medical observation system control method according to an embodiment of the present application.

[0054] Figure 3 is a structural block diagram of a medical observation system control device according to an embodiment of the present application.

[0055] Figure 4 It is a structural schematic diagram of a connecting line according to an embodiment of the present application.

[0056] Figure 5 yes Figure 4 Another view of the connecting lines shown.

[0057] Figure 6 yes Figure 4 Schematic diagram of the local structure in.

[0058] Figure 7 yes Figure 4 Schematic diagram of part of the structure of the middle shell.

[0059] The description of the accompanying drawings is as follows: 1. Endoscope; 11. Insertion part; 12. Handle; 13. Bending part; 3. Connecting line; 31. First communication interface; 32. Display module; 321. Shell; 3211. Anti-slip pattern; 322. Display screen; 33. Cable part; 4. Host; 60. Control device of medical observation system; 61. Electrically connected time acquisition module; 62. Electrically connected time recording module; 63. Processing module. DETAILED DESCRIPTION

[0060] Although the present disclosure can be easily embodied in different forms of embodiments, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present disclosure and is not intended to limit the present disclosure to that described herein.

[0061] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present disclosure, rather than implying that each embodiment of the present disclosure must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0062] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the present disclosure are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indications of these directions also change accordingly.

[0063] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present disclosure will be more comprehensive and complete and the concepts of the example embodiments will be fully conveyed to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0064] The preferred embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings of this specification.

[0065] In the following embodiments, an embodiment of a control method of a medical observation system is described. Figure 1 , Figure 1It is an overall schematic diagram of a medical observation system according to an embodiment of the present application. The medical observation system includes an endoscope 1, a host 4, and a connecting line 3 electrically connecting the endoscope 1 and the host 4. The connecting line 3 transmits signals between the two. The signal transmission direction may include a control signal sent by the host 4 to the endoscope 1, and may also include an image signal sent by the endoscope 1 to the host 4 and a feedback signal of the working status of the endoscope 1. The connecting line 3 specifically includes a first communication interface 31, a cable part 33, an electrical connection time recording module, a display module 32, and a controller. The electrical connection time recording module is used to record and update the electrical connection time between the endoscope 1 and the first communication interface 31. The display module 32 can be used to display the electrical connection time recorded by the electrical connection time recording module, or the remaining use time of the endoscope 1, or display the working status information of the endoscope 1.

[0066] Here, the structural embodiment of the endoscope 1 is first described. The endoscope 1 of this embodiment can be a disposable endoscope 1, or it can be an endoscope 1 with a limited number of uses of the insertion part 11. Among them, the disposable endoscope 1 will discard its contaminated parts after use, which can improve the hygiene of the endoscope 1 and ensure that the subject can use it safely. The above-mentioned handle 12 and the insertion part 11 are contaminated during use, so the above-mentioned handle 12 and the insertion part 11 need to be discarded to ensure the safe use of the endoscope 1. The endoscope 1 with a limited number of uses of the insertion part 11 means that the insertion part 11 can be used several times, and each use can be used next time after disinfection, but the total number of uses is limited.

[0067] Please refer to the figure, which is a schematic diagram of the structure of the insertion tube according to an embodiment of the present application. Firstly, the structural embodiment of the endoscope 1 is described.

[0068] The shape of the handle 12 of the endoscope 1 is convenient for the operator to hold and operate with force. The insertion part 11 includes an insertion tube and a bending part 13. The front end of the insertion tube is provided with a bending part 13. A traction line (not shown) extends from the handle 12, and the traction line passes through the insertion tube and is driven and connected to the bending part 13. The bending part 13 is provided with a plurality of snake-bone structures that are rotatably connected to each other. The snake-bone structure can rotate freely. A guide groove is provided on the inner side wall of the snake-bone structure, and the traction line passes through the guide groove and is traction-connected to the snake-bone structure. When the traction wire is pulled at the handle 12, the snake-bone structure will be driven to rotate or bend, so that the bending direction and bending angle of the bending part 13 connected to the other end of the traction wire can be controlled. The bending part 13 bends and extends in, guiding the insertion tube to move in the cavity. A control knob is provided on the handle 12. The control knob is connected to the traction wire, and the control knob is turned to pull and move the traction wire. The control knob can be a plurality of hand wheels. The plurality of hand wheels are coaxially arranged up and down. It can be moved by the operator's finger.

[0069] In the pipeline of the insertion part 11, there are corresponding gas-liquid delivery pipelines, image transmission lines for transmitting image signals, power supply lines for power supply, and other signal lines for control and detection. An image acquisition module and an illumination optical module are provided at the front end of the curved part 13. The image acquisition module may include camera devices such as CCD and CMOS. The image acquisition module is used to collect image information in the cavity of the subject, and transmit the image signal to the host 4 through the image transmission line, so that the surgical operator can diagnose and treat the subject according to the image information. In addition, an observation window, an air supply and a water supply nozzle are also provided on the curved part 13. The gas and liquid transported by the gas-liquid delivery pipeline are sprayed from the gas supply and water supply nozzles to clean the surface of the observation window. A control button is also provided on the handle 12. The control button is connected to the electrical signal of the pump group of the endoscope 1. The pump group of the endoscope 1 is used to pump gas or liquid into the gas-liquid delivery pipeline for use by the endoscope 1 during use. The control button can control the working state of the pump group. The working state of the pump group may include the switch of the pump group and the adjustment of parameters.

[0070] See also Figure 2 , Figure 2 1 is a flow chart of a medical observation system control method according to an embodiment of the present application. In one embodiment, the medical observation system control method includes:

[0071] S51, when the host 4 and the endoscope 1 are electrically connected, the duration of the electrical connection between the endoscope 1 and the connecting line 3 is obtained;

[0072] S52, if the electrical connection time of the endoscope 1 is less than or equal to the reference time, then based on the electrical connection time, the electrical connection time between the endoscope 1 and the connecting line 3 is updated;

[0073] S53, when the electrical connection time reaches the preset limit usage time, the communication connection between the endoscope 1 and the host 4 is cut off.

[0074] In the present embodiment, the length of time the endoscope 1 has been electrically connected is recorded to determine the length of time the endoscope 1 has been in use. When the length of time the endoscope 1 has been electrically connected reaches a preset limit of use time, the communication connection between the endoscope 1 and the host 4 is cut off to prevent the endoscope 1 from being used any further, thereby preventing secondary use. Therefore, the present application improves the safety of use of the endoscope 1.

[0075] Furthermore, when the electrical connection time reaches a preset limit usage time, the endoscope 1 can be marked as having been used, so that when the endoscope 1 is disconnected from the host 4 and used again, the connecting line 3 or the host 4 can recognize the mark, thereby cutting off the communication between the endoscope 1 and the host 4, thereby preventing secondary use.

[0076] In step S51, one end of the connecting line 3 has a first communication interface 31, which is used to be plugged into the handle interface on the handle 12 of the endoscope 1 to achieve electrical connection, and the other end of the connecting line 3 has a second communication interface, which is used to be electrically connected to the host 4. When the two ends of the connecting line 3 are electrically connected to the handle interface of the endoscope 1 and the host 4, respectively, the host 4 and the endoscope 1 are electrically connected.

[0077] In step S51, the historical duration of electrical connection between the endoscope 1 and the connecting line 3 is obtained. If the obtained duration of electrical connection reaches the reference duration, it is determined that the endoscope 1 has been used. The reference duration is much shorter than the limit usage duration. This use has the risk of secondary use, so an alarm message can be displayed through the display module 32, or the surgical operator can be reminded through other alarm methods. Here, the controller in the connecting line 3 can send an interrupt communication instruction to the host 4, so that the host 4 stops receiving the signal sent by the endoscope 1, thereby strictly preventing the endoscope 1 from being used further. The host 4 can also obtain the recording results of the electrical connection duration recording module, and stop receiving the signal sent by the endoscope 1, or issue an alarm. Therefore, this embodiment improves the safety of the use of the endoscope 1.

[0078] Then the connection line 3 or the host 4 cuts off the communication with the endoscope 1 to avoid secondary use. Here, the reference time is generated by the electrical connection operation that is inevitable before the endoscope 1 is used for surgery due to the needs of production or testing. Therefore, the reference time can be set to 0, or any finite time greater than 0.

[0079] Therefore, if the duration of electrical connection between the endoscope 1 and the connecting line 3 is less than or equal to the reference duration, it means that the endoscope 1 has not been used and there is no risk of secondary use, so it can be used for the current operation. If the duration of electrical connection between the endoscope 1 and the connecting line 3 is greater than the reference duration, it means that the endoscope 1 may have been used before and there is a risk of secondary use, and an alarm is issued to alert the operator.

[0080] In one embodiment, after the host 4 and the endoscope 1 are electrically connected, the step of obtaining the electrical connection time between the endoscope 1 and the connecting line 3 includes:

[0081] When the endoscope 1 and the host 4 are in electrical communication, the type of the host 4 is obtained;

[0082] When the host 4 is a test host 4, the timing of the electrical connection state between the endoscope 1 and the test host 4 is stopped;

[0083] If the fault information of the endoscope 1 is obtained, the fault code corresponding to the fault information is displayed.

[0084] Here, the controller can interact with the host 4 by signals to determine the type of the host 4. When testing the endoscope 1, the endoscope 1 does not need to be inserted into the human body, so it is not determined to be used. Based on the scheme of this embodiment, the electrical connection during the test does not affect the recording of the electrical connection duration, so the reference duration can be set to 0. This scheme effectively avoids interference with the electrical connection duration due to the test, which may cause misjudgment of the secondary use of the endoscope 1.

[0085] Further, in the scheme of obtaining the duration of electrical connection in step S51, the following embodiment may be adopted. In step S51, when the host 4 and the endoscope 1 are electrically connected, the step of obtaining the duration of electrical connection between the endoscope 1 and the connecting line 3 includes:

[0086] When the endoscope 1 is in electrical communication with the host 4, the identity information of the endoscope 1 is obtained;

[0087] Searching the identity information of the endoscope 1 in the identity information database of the endoscope 1 to determine the duration of electrical connection between the endoscope 1 and the connecting line 3; wherein the identity information database is used to record the identity information of the endoscope 1 that has been connected to the connecting line 3, and the duration of electrical connection of the endoscope 1 corresponding to the identity information; wherein the duration of electrical connection of the endoscope 1 is the cumulative duration of electrical connection between the endoscope 1 and the connecting line 3;

[0088] When the identity information of the endoscope 1 is not found, the timing of the endoscope 1 starts from 0, and the identity information of the endoscope 1 is stored in the identity information database.

[0089] In this embodiment, if the endoscope 1 has been used, the duration of electrical connection recorded in the identity information database will be relatively long. If the endoscope 1 is only being powered on for testing, the duration of electrical connection recorded will be relatively short. Medical staff can distinguish.

[0090] Here, the identity information can be reflected by the serial number, barcode, or QR code marked on the endoscope 1. Alternatively, after the first communication interface 31 is electrically connected to the handle interface, the electrical connection duration recording module and the main control circuit in the endoscope 1 may perform handshake communication to obtain the identity information of the endoscope 1. The identity information library of the endoscope 1 may be stored in a server or a network cloud. The electrical connection duration recording module may access the identity information library directly or through the host 4, and search for the identity information of the endoscope 1 and the corresponding previously recorded electrical connection duration, thereby understanding the use history of the endoscope 1, so that medical staff can determine whether the endoscope 1 has been used. This embodiment further improves the standardization of the use management of the endoscope 1, and can effectively prevent the endoscope 1 from being used twice.

[0091] This embodiment can manage the historical usage of the endoscope 1 and prevent the endoscope 1 that has been used from being used again. Therefore, this embodiment improves the use safety and management standardization of the endoscope 1.

[0092] In step S52 , when the host 4 and the endoscope 1 are in electrical communication, the electrical communication time between the endoscope 1 and the connection line 3 is updated based on the electrical communication time.

[0093] Here, the electrical connection time can be used as the usage time of the endoscope 1. In some embodiments, an ambient light sensor can be set on the insertion portion 11 of the endoscope 1, and the ambient light sensor is used to detect the environment in which the endoscope 1 is located; the electrical connection time recording module is electrically connected to the ambient light sensor, so that when the ambient light sensor detects that the endoscope 1 enters the subject, the timing is started. In addition, the timing process can be displayed on the display screen 322.

[0094] Specifically, an ambient light sensor is provided on the curved portion 13 of the endoscope 1; when the host 4 and the endoscope 1 are in electrical connection, the step of updating the electrical connection time between the endoscope 1 and the connecting line 3 based on the electrical connection time includes:

[0095] When the host 4 and the endoscope 1 are in electrical communication, the proportion of red light in the light signal collected by the ambient light sensor;

[0096] If the ambient light sensor detects that the proportion of red light is greater than a preset threshold, the timing of the host 4 and the endoscope 1 being in electrical connection is started.

[0097] The ambient light sensor can sense the environment in which the curved portion 13 of the endoscope 1 is currently located. Schematically, when it is detected that the proportion of red light in the environment rises to about 50%, it is determined that the curved portion 13 has entered the human body. At this time, the ambient light sensor sends a timing signal to the electrically connected duration recording module, starts timing, and displays the timing duration in real time on the display module 32.

[0098] Because after the endoscope 1 is connected to the host 4 via the connecting line 3, the medical staff needs to carry out preoperative preparations instead of starting the operation immediately, through the scheme of this embodiment, the electrical connection time recording module starts timing after entering the human body, so that the recorded electrical connection time truly reflects the actual operation time of the endoscope 1 in the human body, which is convenient for managing the use time of the endoscope 1, thereby improving the accuracy of judging whether the endoscope 1 is used a second time.

[0099] In one embodiment, at S53, when the electrical connection time reaches a preset limit usage time, before the step of cutting off the communication connection between the endoscope 1 and the host 4, the method further includes:

[0100] When the electrical connection time reaches the preset normal use time, a first alarm message is issued; wherein the normal use time is less than the limit use time.

[0101] Here, the limit usage time and the normal usage time can be set by the manufacturer or hospital according to the type of the endoscope 1. The normal usage time can be set to 70% to 95% of the limit usage time.

[0102] The first alarm mode can be a light alarm mode, such as a warning light module provided on the connecting line 3 or changing the backlight of the display screen 322 to a specific color, such as orange. When the electrical connection time recording module reaches the regular use time, the alarm module activates the first alarm mode to remind the surgical operator that the remaining use time of the endoscope 1 is running low.

[0103] Here, the communication connection between the endoscope 1 and the host 4 can be cut off by the controller in the connecting line 3, or the controller can send a communication interruption instruction to the host 4, and the host 4 stops receiving the signal sent by the endoscope 1 to force the endoscope 1 to stop using.

[0104] Further, in one embodiment, in step S53, when the electrical connection time reaches a preset limit usage time, the communication connection between the endoscope 1 and the host 4 is cut off, including:

[0105] When the duration of electrical connection reaches the limit of usage time, a second alarm message is issued; wherein the second alarm message is more alarming than the first alarm message;

[0106] Starting a countdown on the display module 32 and counting a first time duration;

[0107] When the countdown is completed, the communication connection between the endoscope 1 and the host 4 is cut off.

[0108] The second alarm mode can be a sound alarm mode, in which case the alarm module includes a speaker assembly to issue a voice reminder. Alternatively, the backlighting mode of the display module 32 can be changed to a red flashing mode to remind the operator in a more alert manner that the remaining use time of the endoscope 1 has been exhausted.

[0109] In order to ensure the safety of the operation, the first time length can be set to the time length required for the endoscope 1 to be withdrawn from the human body. In this way, the endoscope 1 can be ensured to be safely and smoothly withdrawn from the human body, and the endoscope 1 can be prevented from scratching the human body cavity during the process of withdrawing from the human body due to the endoscope 1 stopping working.

[0110] Furthermore, if a special situation is encountered during the operation, the operation time needs to be extended. Therefore, in order to ensure the smooth progress of the operation, in one embodiment, in step S53, when the electrical connection time reaches the preset limit usage time, the step of cutting off the communication connection between the endoscope 1 and the host 4 also includes:

[0111] Before the preset limit usage time is reached, if a delay general instruction is received, the limit usage time is extended according to the delay general instruction, and the relevant information of the new limit usage time is updated on the display module 32;

[0112] When the electrical connection time reaches a new limit usage time, the communication connection between the endoscope 1 and the host 4 is cut off.

[0113] Here, it should be noted that the endoscope 1 may also receive a general delay instruction, and the controller may obtain the time extension information by interacting with the endoscope 1 through signals, thereby controlling the display screen 322 to update the display limit usage time, or update the display remaining usage time available. The time extension instruction may also be received by the host 4, and the time extension information may be conveyed to the controller through signal interaction.

[0114] Here, the surgical operator has the authority to issue a general delay instruction, and usually this authority is only once to ensure that the use time of the endoscope 1 is strictly controlled to prevent secondary use.

[0115] Specifically, the operator can directly issue the delay right through the human-computer interaction component on the host 4, or issue the delay right by unlocking the delay right after entering a specific password, or a card slot for inserting an IC card is provided on the host 4, the endoscope 1 or the housing 321 of the display module 32, and the operator inserts the IC card to unlock the delay right and further issue a delay general instruction. The delay general instruction contains the specific time length to be extended.

[0116] For example, the preset maximum usage time of the endoscope 1 is 120 minutes. When the electrical connection time recording module records 100 minutes, the operator issues a general delay instruction. After a delay of 30 minutes, the display module 32 updates and displays the maximum usage time as 150 minutes, or displays the remaining usage time as 50 minutes.

[0117] Furthermore, if the operation is too complicated and still cannot be completed after the limit usage time is extended, in order to ensure that the endoscope 1 can continue to support the normal operation, in one embodiment, before the preset limit usage time is reached, if a delay general instruction is received, after the step of extending the limit usage time according to the delay general instruction, the method further includes:

[0118] Before the new maximum usage time is reached, if a special delay instruction is received, the current maximum usage time will be extended again according to the special delay instruction; wherein the special delay instruction is issued by the authorization key.

[0119] It should be noted that the "current maximum usage time" here is the maximum usage time after delaying the ordinary command.

[0120] The authorization key can be in various forms, such as an authorization shield provided by the manufacturer, which is generally managed by a higher-level surgical operator. After using the above-mentioned ordinary delay right, if necessary, the surgical operator can also use the authorization key to extend the maximum usage time once or multiple times to meet the surgical requirements.

[0121] The embodiment of the present application adjusts the maximum usage time of the endoscope 1 by delaying general instructions and delaying special instructions, so that the endoscope 1 can support the smooth completion of the operation. At the same time, the present application sets the authority to issue delayed general instructions and delayed special instructions to reduce the maximum usage time of the endoscope 1 from being excessively extended due to misoperation or malicious intent, and then used for the next operation. Therefore, the present embodiment effectively reduces the possibility of the endoscope 1 being used a second time.

[0122] In combination with the above embodiment, if the limit usage time is excessively extended, the endoscope 1 still has a remaining usage time after the operation is completed. Therefore, in order to prevent the endoscope 1 from being used next time, in one embodiment, the method further includes:

[0123] After the endoscope 1 leaves the human body, the time extension data issued by the authorization shield is obtained;

[0124] If the time extension data is greater than the preset time extension range, the time extension is judged to be abnormal, thereby marking that the endoscope 1 has been used.

[0125] Therefore, after the endoscope 1 leaves the human body, the controller or host 4 can obtain the time extension data sent by the authorization shield; if the time extension data is greater than the preset time extension range, the time extension is judged to be abnormal, so that the endoscope 1 is marked in the endoscope 1 identity database as having been used. Therefore, if the endoscope 1 is electrically connected to the connecting line 3 again, the connecting line 3 can identify the history of having been used, thereby achieving the purpose of preventing secondary use. Among them, the preset time extension range is determined by the manufacturer after sorting and counting the time extension data of all authorization shields to ensure that the delay time matches the delay time under normal circumstances.

[0126] See also Figure 3 , Figure 31 is a block diagram of a medical observation system control device according to an embodiment of the present application. The present application also proposes a control device 60 for a medical observation system, and the specific embodiment of the device 60 can refer to the embodiment of the control method of the medical observation system described above. Specifically, in one embodiment, the medical observation system includes an endoscope 1, a host 4, and a connection line 3 electrically connecting the endoscope 1 and the host 4; the device 60 includes:

[0127] The electrical connection duration acquisition module 61 is used to acquire the electrical connection duration between the endoscope 1 and the connecting line 3 after the host 4 and the endoscope 1 are electrically connected;

[0128] The electrical connection duration recording module 62 is used to update the electrical connection duration between the endoscope 1 and the connecting line 3 based on the electrical connection duration when the host 4 and the endoscope 1 are in an electrical connection state;

[0129] The processing module 63 is used to cut off the communication connection between the endoscope 1 and the host 4 when the electrical connection time reaches a preset limit usage time.

[0130] In one embodiment, an ambient light sensor is provided on the curved portion 13 of the endoscope 1; the electrical connection duration recording module 62 is used to record the proportion of red light in the optical signal collected by the ambient light sensor when the host 4 and the endoscope 1 are in an electrical connection state;

[0131] If the ambient light sensor detects that the proportion of red light is greater than a preset threshold, the timing of the host 4 and the endoscope 1 being in electrical connection is started.

[0132] In one embodiment, the device further comprises an alarm module for issuing a first alarm message when the electrical connection time reaches a preset regular usage time; wherein the regular usage time is less than the limit usage time.

[0133] In one embodiment, a display module 32 is provided on the connecting line 3; when the electrical connection time reaches the limit usage time, a second alarm message is issued; wherein the warning of the second alarm message is higher than that of the first alarm message; a countdown is started on the display module 32, and the first time length is counted; when the countdown is completed, the processing module 63 cuts off the communication connection between the endoscope 1 and the host 4.

[0134] In one embodiment, the device further includes a delay acquisition module, which is used to extend the limit usage time according to the delay general instruction if a delay general instruction is received before the preset limit usage time is reached, and update the relevant information of the new limit usage time on the display module 32;

[0135] When the electrical connection time reaches the new limit usage time, the processing module 63 cuts off the communication connection between the endoscope 1 and the host 4.

[0136] In one embodiment, the delay acquisition module is used to extend the current limit usage time again according to the special delay instruction if a special delay instruction is received before the new limit usage time is reached; wherein the special delay instruction is issued by an authorization key.

[0137] After the endoscope 1 leaves the human body, the delay acquisition module is used to obtain the time extension data sent by the authorization shield; if the time extension data is greater than the preset time extension range, the time extension is judged to be abnormal, thereby marking that the endoscope 1 has been used.

[0138] The module 61 for obtaining the duration of electrical connection is used to obtain the identity information of the endoscope 1 when the endoscope 1 is in an electrical connection state with the host 4; the identity information of the endoscope 1 is searched in the identity information library of the endoscope 1 to determine the duration of electrical connection between the endoscope 1 and the connecting line 3; wherein the identity information library is used to record the identity information of the endoscope 1 that has been connected to the connecting line 3, and the duration of electrical connection of the endoscope 1 corresponding to the identity information; wherein the duration of electrical connection of the endoscope 1 is the accumulated duration that the endoscope 1 has been in an electrical connection state with the connecting line 3; when the identity information of the endoscope 1 is not found, the timing of the endoscope 1 starts from 0, and the identity information of the endoscope 1 is saved in the identity information library.

[0139] In one embodiment, the device also includes a host 4 judgment module, which is used to obtain the type of host 4 when the endoscope 1 and the host 4 are in an electrically connected state; the electrical connection duration recording module 62 stops timing the electrical connection state between the endoscope 1 and the test host 4 when the host 4 type is a test host 4.

[0140] The present application also proposes a connecting line 3, which is electrically connected between the handle 12 and the host 4 to transmit signals between the two. The signal transmission direction may include a control signal sent by the host 4 to the endoscope 1, and may also include an image signal sent by the endoscope 1 to the host 4 and a feedback signal of the working status of the endoscope 1.

[0141] See also Figures 4 to 6 , Figure 4 It is a schematic diagram of the structure of a connecting line 3 according to an embodiment of the present application. Figure 5 yes Figure 4 Another perspective view of connecting line 3. Figure 6 yes Figure 4Schematic diagram of the local structure in. Specifically, in one embodiment, the connecting line 3 includes a first communication interface 31, a cable part 33, an electrical connection time recording module and a controller. The first communication interface 31 is used to plug into the handle 12 of the endoscope 1 to send and receive various communication signals between the endoscope 1; one end of the cable part 33 is connected to the first communication interface 31, and the other end is connected to the host 4; the electrical connection time recording module is electrically connected to the first communication interface 31 to record and update the electrical connection time between the endoscope 1 and the first communication interface 31; when the electrical connection time reaches the preset limit usage time, the controller cuts off the communication connection between the endoscope 1 and the host 4, and marks that the endoscope 1 has been used.

[0142] In this embodiment, the length of time the endoscope 1 has been electrically connected is recorded to determine the length of time the endoscope 1 has been in use. When the length of time the endoscope 1 has been electrically connected reaches a preset limit of usage time, the communication connection between the endoscope 1 and the host 4 is cut off to prevent the endoscope 1 from being used any further, thereby preventing secondary use.

[0143] Furthermore, when the electrical connection time reaches a preset limit usage time, the endoscope 1 can be marked as having been used, so that when the endoscope 1 is disconnected from the host 4 and used again, the connecting line 3 can recognize the mark, thereby cutting off the communication between the endoscope 1 and the host 4, thereby preventing secondary use.

[0144] A handle interface is provided on the handle 12, and the first communication interface 31 of the connecting line 3 is detachably connected to the handle interface by plugging and unplugging, so that the connecting line 3 can be reused by replacing the endoscope 1, thereby reducing the use cost of the endoscope 1.

[0145] Schematically, the cable part 33 includes a plurality of signal transmission lines and a protective sleeve wrapping the signal transmission lines. The plurality of signal transmission lines are used to transmit different communication signals respectively. Of course, in some cases, a signal transmission line can be reused to transmit two or more communication signals, which is not limited here.

[0146] Here, the communication interface connecting the connecting line 3 and the host 4 is called the second communication interface. When the first communication interface 31 is plugged into the handle interface on the handle 12, and the second communication interface is electrically connected to the host 4, the cable part 33 can transmit the communication signal between the endoscope 1 and the host 4. The communication signal includes but is not limited to the power signal, image signal, image compression information, the working voltage signal of the endoscope 1, the working current signal, the working timing control signal, etc.

[0147] In the related art, the surgical operator holds the handle 12 in the endoscope to perform the surgical operation, and the distance between the host 4 and the surgical operator is relatively far, usually more than 1 meter, which requires the surgical operator to enlarge the video information displayed on the display device as much as possible during the operation. Other working status information of the endoscope 1 device is relatively small and displayed on the display device, which easily causes the surgical operator to be unable to obtain the working status of the endoscope 1 in real time, thereby affecting the smooth progress of the operation.

[0148] Therefore, in order to enable the surgical operator to better know the working status information of the endoscope 1 during the operation, in one embodiment, the connecting line 3 also includes a display module 32, and the display module 32 includes a shell 321 and a display screen 322, and the display screen 322 is arranged on the shell 321; the first communication interface 31 is located on one end of the shell 321, and the cable part 33 is passed through the other end of the shell 321 and connected to the host 4; the display screen 322 is electrically connected to the electrical connection time recording module to display the electrical connection time recorded by the electrical connection time recording module, or to display the remaining use time of the endoscope 1. Of course, the display screen 322 can also be electrically connected to multiple signal transmission lines in the cable part 33 to obtain the real-time working status signal of the endoscope 1 and display the corresponding working status information.

[0149] In this embodiment, when the connecting line 3 is electrically connected between the host 4 and the endoscope 1, the display screen 322 immediately displays the length of time the endoscope 1 has been electrically connected to the communication interface, so that the operator can quickly learn about the historical usage of the endoscope 1, thereby effectively avoiding the secondary use of the endoscope 1.

[0150] In this embodiment, the display content of the display screen 322 may also include various working parameter information of the endoscope 1. Through the design of the display screen 322 on the connecting line 3, the working status information of the endoscope 1 does not need to be displayed on the screen of the host 4, or is displayed in a smaller occupied area, so that the screen of the host 4 can further enlarge the image, which is convenient for the user to operate the surgery more accurately.

[0151] In addition, the position design of the display screen 322 on the connecting line 3 conforms to the ergonomic design, so that when the surgical operator holds the handle 12 of the endoscope 1 to perform surgery, the display screen 322 is located at the base of the palm, and the display surface is located at the best line of sight, so that the user can intuitively see the information on the display screen 322.

[0152] In a specific embodiment, the housing 321 is cylindrical, and the display screen 322 is vertically arranged in the radial direction of the connector. The display screen 322 is vertically arranged in the axial direction of the housing 321. Such a design makes the information displayed on the display within the optimal viewing angle range when the user operates the handle 12 of the endoscope 1, thereby improving the convenience of viewing information.

[0153] The cross-sectional diameter of the housing 321 can be designed to be 1 cm to 3 cm, and the length of the housing 321 along its own radial direction can be 0.5 cm to 3 cm. This size is compatible with the size of a human palm, making it convenient for a user to hold the housing 321.

[0154] In a specific embodiment, the cross section of the housing 321 can be set to be an ellipse. Compared with the circular design, the ellipse design can increase the contact area with the human hand during the plugging and unplugging operation, making it easier for the user to plug and unplug. The long axis of the ellipse can be 1 cm to 3 cm, and the length of the housing 321 along its own radial direction is 0.5 cm to 3 cm.

[0155] See also Figure 7 , Figure 7 yes Figure 4 Partial structural diagram of the middle shell 321. In one embodiment, anti-slip grooves 3211 may be further provided on the outer surface of the shell 321, so as to increase the friction with the palm when plugging and unplugging the first communication interface 31, thereby achieving fast and effective plugging and unplugging.

[0156] In a specific embodiment, the housing 321 has a handle interface, and the handle interface is detachably connected to the display. The detachable connection can be a snap connection or a plug-in connection. This embodiment realizes the separation of the display and the housing 321, so that the display screen 322 and the housing 321 can be provided as separate products, reducing the cost of hospital product replacement.

[0157] In the related art, endoscope 1 companies choose to design their own dedicated interfaces to prevent the mixing of various devices, thereby forming a market barrier. In one embodiment of the present application, the first communication interface 31 is a universal interface, which may specifically include one or more of an HDMI interface, a USB interface, and a Type-C interface. It should be understood that the handle interface on the corresponding handle 12 in this embodiment is consistent with the type of the first communication interface 31. This embodiment reduces the workload of updating the communication protocol and designing a new dedicated port when the connecting line 3 is updated, and can be universally used in other endoscope 1 products, with wide ease of use.

[0158] As before, the connecting line 3 also includes an electrical connection duration recording module. Illustratively, when the endoscope 1 needs to be used, after the first communication interface 31 is plugged into the handle interface on the handle 12, and the second communication interface is electrically connected to the host 4, the host 4 can send an electrical signal to the endoscope 1 through the cable portion 33. The electrical signal can be a power supply signal for power supply or a control signal. During the use of the endoscope 1, the first communication interface 31 and the handle interface on the handle 12 remain plugged in, and the electrical signal is continuously transmitted, which is detected by the electrical connection duration recording module and the electrical connection duration is recorded. When the endoscope 1 operation is completed and the first communication interface 31 is disconnected from the handle interface, the electrical signal is interrupted, and the electrical connection duration recording module can detect the interruption of the electrical signal, thereby stopping recording the electrical connection duration.

[0159] In a specific embodiment, the electrical connection duration recording module may include a sampling circuit and a timing circuit, wherein the input end of the sampling circuit is connected to the first communication interface 31, and the output end of the sampling circuit is connected to the timing circuit. When the first communication interface 31 is electrically connected to the handle interface on the handle 12, the input end of the sampling circuit can sample the voltage, and at this time the timing circuit is used to record the duration of the sampled voltage, and use the duration as the electrical connection duration between the handle interface and the first communication interface 31. Obviously, during the operation, the electrical connection duration recording module will continue to record the electrical connection duration, and after the operation is completed, the first communication interface 31 is separated from the handle interface on the handle 12, and the recording stops.

[0160] Here, the electrical connection time can be used as the usage time of the endoscope 1. In some embodiments, an ambient light sensor can be provided on the insertion portion 11 of the endoscope 1, and the ambient light sensor is used to detect the environment in which the endoscope 1 is located; the electrical connection time recording module is electrically connected to the ambient light sensor, so that when the ambient light sensor detects that the endoscope 1 enters the subject, the timing is started. In addition, the timing process can be displayed on the display.

[0161] The ambient light sensor can sense the environment in which the curved portion 13 of the endoscope 1 is currently located. Schematically, when it is detected that the proportion of red light in the environment rises to about 50%, it is determined that the curved portion 13 has entered the human body. At this time, the ambient light sensor sends a timing signal to the electrically connected duration recording module, starts timing, and displays the timing duration on the display.

[0162] After the endoscope 1 is connected to the host 4 via the connecting line 3, the medical staff needs to carry out preoperative preparations instead of starting the operation immediately. Through the scheme of this embodiment, the electrical connection time recording module starts timing after entering the human body, so that the recorded electrical connection time truly reflects the actual operation time of the endoscope 1 in the human body, which is conducive to improving and actually recording the electrical connection time of the endoscope 1 when it is in use, and the surgical operator controls the progress of the operation to ensure the safety of the patient's life.

[0163] In one embodiment, the connecting line 3 further includes an alarm module, which is used to issue a first alarm message when the electrical connection time reaches a preset regular use time; wherein the regular use time is less than the limit use time. Here, the limit use time and the regular use time can be set by the manufacturer or hospital according to the type of endoscope 1. The regular use time can be set to 70% to 95% of the limit use time.

[0164] The first alarm mode can be a light alarm mode, such as a warning light module provided on the connecting line 3 or changing the backlight of the display screen 322 to a specific color, such as orange. When the electrical connection time recording module reaches the regular use time, the alarm module activates the first alarm mode to remind the surgical operator that the remaining use time of the endoscope 1 is running low.

[0165] In one embodiment, the alarm module is also used to issue a second alarm message when the electrical connection time reaches the limit usage time; wherein the second alarm message is more alarming than the first alarm message. At the same time, the electrical connection time recording module starts the countdown and counts the first time; when the countdown is completed, the communication connection between the endoscope 1 and the host 4 is cut off.

[0166] The second alarm mode can be a sound alarm mode, in which case the alarm module includes a speaker assembly to issue a voice reminder, or the backlight mode of the display can be changed to a red flashing mode to remind the operator in a more alert manner that the remaining use time of the endoscope 1 has been exhausted.

[0167] In order to ensure the safety of the operation, the first time length can be set to the time length required to withdraw the endoscope 1 from the human body. In this way, it can be ensured that the endoscope 1 can be safely and smoothly withdrawn from the human body, and it is avoided that the endoscope 1 stops working and scratches the human body cavity during the process of withdrawing from the human body.

[0168] Furthermore, if a special situation is encountered during the operation, the operation time needs to be extended. Therefore, in order to ensure the smooth progress of the operation, in one embodiment, the controller is also used to receive a general delay instruction. The display screen 322 is also used to update the display limit usage time or update the remaining usage time of the endoscope 1 according to the general delay instruction received by the controller.

[0169] Here, it should be noted that the endoscope 1 may also receive a general delay instruction, and the controller may obtain the time extension information by interacting with the endoscope 1 through signals, thereby controlling the display screen 322 to update the display limit usage time or the remaining usage time available. The time extension instruction may also be received by the host 4, and the time extension information may be conveyed to the controller through signal interaction.

[0170] Here, the surgical operator has the authority to issue a general delay instruction, and usually this authority is only once to ensure that the use time of the endoscope 1 is strictly controlled to prevent secondary use.

[0171] Specifically, the operator can directly issue the delay right through the human-computer interaction component on the host 4, or issue the delay right by unlocking the delay right after entering a specific password, or a card slot for inserting an IC card is provided on the host 4, the endoscope 1 or the housing 321 of the display module 32, and the operator inserts the IC card to unlock the delay right and further issue a delay general instruction. The delay general instruction contains the specific time length to be extended.

[0172] For example, the preset maximum usage time of endoscope 1 is 120 minutes. When the electrical connection time recording module records 100 minutes, the operator issues a general delay command. After a delay of 30 minutes, the display updates to show the maximum usage time as 150 minutes, or displays the remaining usage time as 50 minutes.

[0173] Furthermore, if the operation is too complicated and still cannot be completed after the maximum usage time is extended, in order to ensure that the endoscope 1 can continue to support the normal progress of the operation, in one embodiment, the controller is configured to directly or indirectly receive ordinary delay instructions. After receiving special delay instructions, the controller controls the current maximum usage time to be extended again according to the special delay instructions; wherein, the special delay instructions are issued by the authorization key.

[0174] It should be noted that the "current maximum usage time" here is the maximum usage time after delaying the ordinary command.

[0175] The authorization key can be in various forms, such as an authorization shield provided by the manufacturer, which is generally managed by a higher-level surgical operator. After using the above-mentioned ordinary delay right, if necessary, the doctor can also use the authorization key to extend the maximum usage time one or more times.

[0176] If the limit usage time is excessively extended, the endoscope 1 still has a remaining usage time after the operation is completed. Therefore, in order to prevent the endoscope 1 from being used next time, in one embodiment, after the endoscope 1 leaves the human body, the controller or host 4 can obtain the time extension data sent by the authorization shield; if the time extension data is greater than the preset time extension range, the time extension is judged to be abnormal, so that the endoscope 1 is marked in the endoscope 1 identity database as having been used. Therefore, if the endoscope 1 is electrically connected to the connecting line 3 again, the connecting line 3 can recognize the history of having been used, thereby achieving the purpose of preventing secondary use.

[0177] Among them, the preset time extension range is determined by the manufacturer after sorting and counting the time extension data of all authorized shields to ensure that the delay duration matches the delay duration under normal circumstances.

[0178] The present application further proposes a control method for a medical observation system, which includes an endoscope 1, a host 4, and a connecting line 3 electrically connecting the endoscope 1 and the host 4; wherein, the structural embodiments of the endoscope 1, the host 4, and the connecting line 3 please refer to the above embodiments and will not be repeated here.

[0179] Although the present disclosure has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present disclosure can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A control method for a medical observation system, characterized in that: The medical observation system comprises an endoscope, a host, and a connecting line electrically connecting the endoscope and the host, wherein the connecting line is provided with an electrical connection duration recording module, and the connecting line is detachably connected to the endoscope; the method comprises: When the host and the endoscope are electrically connected, obtaining the duration of the electrical connection between the endoscope and the connecting line; If the electrically connected time of the endoscope is less than or equal to the reference time, then when the host and the endoscope are in an electrically connected state, based on the electrically connected time, the electrically connected time between the endoscope and the connecting line is updated, an ambient light sensor is provided on the curved portion of the endoscope, the electrically connected time recording module is electrically connected to the ambient light sensor, the ambient light sensor is used to detect the environment in which the endoscope is located, so as to start timing when the ambient light sensor detects that the endoscope has entered the subject, and the step of updating the electrically connected time between the endoscope and the connecting line based on the electrically connected time when the host and the endoscope are in an electrically connected state comprises: When the host and the endoscope are in electrical communication, the proportion of red light in the light signal collected by the ambient light sensor; If the ambient light sensor detects that the red light ratio is greater than a preset threshold, then start timing the host and the endoscope to be in an electrically connected state; When the electrical connection time reaches a preset limit usage time, the communication connection between the endoscope and the host is cut off.

2. The method according to claim 1, characterized in that Before the step of cutting off the communication connection between the endoscope and the host when the electrical connection time reaches a preset limit usage time, the method further includes: When the electrical connection time reaches a preset regular usage time, a first alarm message is issued; wherein the regular usage time is less than the limit usage time.

3. The method according to claim 2, characterized in that The connecting line is provided with a display module; when the electrical connection time reaches a preset limit usage time, the communication connection between the endoscope and the host is cut off, including: When the duration of the electrical connection reaches the limit usage duration, a second alarm message is issued; wherein the second alarm message is more alarming than the first alarm message; Starting a countdown on the display module and counting a first duration; When the countdown is completed, the communication connection between the endoscope and the host is cut off.

4. The method according to claim 3, characterized in that When the electrical connection time reaches a preset limit usage time, the step of cutting off the communication connection between the endoscope and the host further includes: Before the preset limit usage time is reached, if a delay general instruction is received, the limit usage time is extended according to the delay general instruction, and the relevant information of the new limit usage time is updated on the display module; When the electrical connection time reaches the new limit usage time, the communication connection between the endoscope and the host is cut off.

5. The method according to claim 4, characterized in that After the step of extending the limit usage time according to the delay general instruction if a delay general instruction is received before the preset limit usage time is reached, the method further includes: Before the new limit usage time is reached, if a special delay instruction is received, the current limit usage time is extended again according to the special delay instruction; wherein the special delay instruction is issued by the authorization key.

6. The method according to claim 1, characterized in that The method further comprises: After the endoscope leaves the human body, obtain the time extension data issued by the authorization shield; If the time extension data is greater than a preset time extension range, the time extension is judged to be abnormal, thereby marking that the endoscope has been used.

7. The method according to claim 1, characterized in that The step of obtaining the duration of electrical connection between the endoscope and the connecting line after the host and the endoscope are electrically connected comprises: When the endoscope is in electrical communication with the host, obtaining identity information of the endoscope; Searching the identity information of the endoscope in the identity information database of the endoscope to determine the duration of electrical connection between the endoscope and the connecting line; wherein the identity information database is used to record the identity information of the endoscope that has been connected to the connecting line, and the duration of electrical connection of the endoscope corresponding to the identity information; wherein the duration of electrical connection of the endoscope is the cumulative duration of electrical connection between the endoscope and the connecting line; When the identity information of the endoscope is not found, the timing of the endoscope starts from 0, and the identity information of the endoscope is stored in the identity information database.

8. The method according to claim 1, characterized in that The step of obtaining the duration of electrical connection between the endoscope and the connecting line after the host and the endoscope are electrically connected comprises: When the endoscope is in electrical communication with the host, obtaining the host type; When the host type is a test host, the timing of the electrical connection state between the endoscope and the test host is stopped.

9. A control device for a medical observation system, characterized in that: The medical observation system comprises an endoscope, a host, and a connecting line electrically connecting the endoscope and the host, wherein the connecting line is detachably connected to the endoscope; the control device comprises: An electrical connection duration acquisition module, used for acquiring the electrical connection duration between the endoscope and the connecting line after the host and the endoscope are electrically connected; An electrical connection duration recording module is used for updating the electrical connection duration between the endoscope and the connecting line based on the electrical connection duration when the host and the endoscope are in an electrical connection state. An ambient light sensor is provided on the curved portion of the endoscope. The ambient light sensor is used to detect the environment in which the endoscope is located. The electrical connection duration recording module is electrically connected to the ambient light sensor to start timing when the ambient light sensor detects that the endoscope has entered the subject. The step of updating the electrical connection duration between the endoscope and the connecting line based on the electrical connection duration when the host and the endoscope are in an electrical connection state comprises: when the host and the endoscope are in an electrical connection state, the proportion of red light in the optical signal collected by the ambient light sensor; if the ambient light sensor detects that the proportion of red light is greater than a preset threshold, then starting timing of the host and the endoscope being in an electrical connection state; The processing module is used to cut off the communication connection between the endoscope and the host when the electrical connection time reaches a preset limit usage time.

10. An endoscope connecting line, characterized in that: include: A first communication interface, used for plugging into an endoscope handle to send and receive a variety of communication signals with the endoscope; A cable part, one end of which is connected to the first communication interface, and the other end of which is connected to the host; an electrical connection duration recording module, electrically connected to the first communication interface to record and update the electrical connection duration between the endoscope and the first communication interface, the electrical connection duration recording module being electrically connected to the ambient light sensor to start timing when the ambient light sensor detects that the endoscope has entered the subject; The controller is electrically connected to the electrical connection duration recording module, and when the electrical connection duration reaches a preset limit usage duration, the communication connection between the endoscope and the host is cut off.

11. The connecting line according to claim 10, characterized in that: The connecting line also includes an alarm module, which is used to issue a first alarm message when the electrical connection time reaches a preset regular use time; wherein the regular use time is less than the limit use time.

12. The connecting line according to claim 10, characterized in that: The connecting line further includes a display module, the display module includes a housing and a display screen, the display screen is arranged on the housing; the first communication interface is located on one end of the housing, the cable portion is passed through the other end of the housing and connected to the host; The display screen is electrically connected to the electrical connection duration recording module to display the electrical connection duration recorded by the electrical connection duration recording module, or to display the remaining usage time of the endoscope.

13. The connecting line according to claim 12, characterized in that: The display screen is also used to update and display the limited usage time or the remaining usage time of the endoscope according to the delayed general instruction received by the controller.

14. A medical observation system, characterized in that: It comprises an endoscope, a host, and the connecting line as described in any one of claims 10 to 13, and the control device of the medical observation system as described in claim 9, wherein the connecting line is detachably connected to the endoscope.

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