Surgical system, endoscope camera system and imaging method thereof

Abstract

A surgical operation system comprises an endoscope camera system (901) and a medical device (902), and the endoscope camera system (901) is in direct or indirect communication connection with the medical device (902); the medical equipment (902) comprises a central venous pressure measuring device (903), and the central venous pressure measuring device (903) is used for acquiring central venous pressure data of a patient; the endoscope camera system (901) is used for acquiring an image signal of a to-be-observed part of a patient, generating a visual image of the to-be-observed part of the patient and displaying the visual image; the endoscope camera system (901) is further used for obtaining the central venous pressure data from the medical equipment (902) and displaying the central venous pressure information of the patient based on the central venous pressure data, when a user observes the visual image of the observation part of the patient on the endoscope camera system (901), the central venous pressure information of the patient can be conveniently obtained, and the operation efficiency is improved.

Description

Surgical operation system, endoscopic camera system and imaging method thereof Technical Field

[0001] The present invention relates to the field of surgical diagnosis, and in particular to a surgical operation system, an endoscopic camera system and an imaging method thereof. Background Art

[0002] The surgical laparoscopic system primarily consists of an endoscope used for intra-abdominal examination and treatment. It is a light-sourced endoscope, comprising a laparoscope, a light source system, an insufflator, and an imaging system. Completely painless, it can be used on surgical patients to directly and clearly observe the patient's intra-abdominal conditions, identify causative factors, and perform surgical treatment for abnormalities. Using laparoscopic technology, the surgeon simply makes a few small incisions around the surgical site, allowing the surgeon to visually observe the patient's internal conditions on a display screen without requiring an open abdomen, allowing for precise surgical procedures.

[0003] Compared to traditional open surgery, laparoscopic techniques offer advantages such as faster recovery, shorter hospital stays, better abdominal cosmetic results, and fewer complications. As a representative of minimally invasive surgery, laparoscopy is widely used in the surgical field, encompassing a wide range of conditions and procedures, and is a popular choice among patients. Furthermore, with the continuous advancement of science and technology, and the improvement and innovation of surgical instruments, the application of laparoscopy will continue to expand.

[0004] The scope of application of laparoscopic surgery includes the following categories:

[0005] 1. Hepatobiliary Surgery

[0006] Cholecystectomy, common bile duct lithotomy, liver resection, liver cyst fenestration and drainage, liver abscess drainage, and biliary enteric drainage.

[0007] 2. Splenic and Pancreatic Disease Surgery

[0008] Splenectomy, fenestration and drainage of splenic cysts, internal drainage of pancreatic pseudocysts, and partial pancreatectomy.

[0009] 3. Gastrointestinal Surgery

[0010] Subtotal gastrectomy, vagotomy, appendectomy, repair of perforated ulcer, gastric volume reduction surgery for obesity, lysis of intestinal adhesions, and colorectal tumor resection.

[0011] During various surgical procedures, it may be necessary to observe the patient's physiological symptoms to assist in diagnosis. Because the endoscopic camera system is a standalone system, doctors typically can only observe the surgical field of view on the endoscopic camera monitor and observe the patient's physiological signs on other devices, such as a monitor. This requires doctors to repeatedly switch between different devices, affecting surgical efficiency. Technical issues

[0012] This application provides an endoscopic camera system whose image processing device can communicate with a medical device via an external device communication interface to obtain a patient's central venous pressure data from the medical device and simultaneously display the central venous pressure information and the endoscopic image on a display of the endoscopic camera system. This solves the problem of doctors needing to obtain information from different devices during endoscopic surgery, which affects surgical efficiency. Technical Solutions

[0013] According to one aspect of the present application, an embodiment of the present application provides an endoscopic camera system, comprising:

[0014] A light source, used for providing illumination to the patient's part to be observed;

[0015] an operating unit connected to the light source via a light guide, and configured to guide the illumination light emitted by the light source to the patient's part to be observed via the light guide, and to collect an image signal of the patient's part to be observed;

[0016] an image processing device, the image processing device being communicatively connected to the operating unit and configured to obtain the image signal from the operating unit for processing; the image processing device comprising an external device communication interface, configured to be directly or indirectly communicatively connected to a medical device to obtain central venous pressure data of the patient from the medical device;

[0017] A display, the display being communicatively connected to the image processing device, for obtaining a display signal from the image processing device and displaying a visual image of the patient's part to be observed and the patient's central venous pressure information based on the display signal; the display signal is generated based on the image signal and the central venous pressure data.

[0018] In one embodiment, the display is further configured to simultaneously display a visual image of the patient's part to be observed and central venous pressure information of the patient based on the display signal.

[0019] In one embodiment, the central venous pressure information includes at least one of a real-time monitoring value of the central venous pressure, a central venous pressure trend graph, a central venous pressure change, and a central venous pressure change trend graph.

[0020] In one embodiment, the image processing device is also used to obtain at least one of the patient's heart rate information, blood pressure information, cardiac output information, and medical history data information from the medical device through the external device communication interface; the display is also used to display at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information simultaneously with the central venous pressure information and the visual image.

[0021] In one embodiment, the display is used to superimpose the central venous pressure information on the visual image for display; or, the display is used to display the central venous pressure information and the visual image in two different display areas respectively.

[0022] In one embodiment, the display includes a first display and a second display, the first display is used to display the central venous pressure information, and the second display is used to display the visual image.

[0023] In one embodiment, the visible image includes at least one of a white light image and a fluorescent image of the patient's observed part imaged by the endoscopic camera system, and the visible image includes at least one of a two-dimensional image and a three-dimensional image of the patient's observed part.

[0024] In one embodiment, the operating unit further includes a human-computer interaction interface for acquiring an operating instruction input by a user to turn off or on the display of the central venous pressure information.

[0025] In one embodiment, the image processing device is further configured to output an alarm prompt message based on a pre-configured alarm condition when it is determined that the central venous pressure data meets the alarm condition.

[0026] In one embodiment, the visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the image processing device is also used to perform parallax processing on the central venous pressure data in accordance with three-dimensional image observation after acquiring the central venous pressure data, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

[0027] In one embodiment, the image processing device is further configured to determine a type of surgery currently being performed by the endoscopic camera system, and determine whether to turn off or on display of the central venous pressure information based on the type of surgery.

[0028] In one embodiment, the image processing device is used to determine the type of surgery currently performed by the endoscopic camera system, including: the image processing device is used to identify configuration information about the surgery type set by the user to determine the type of surgery currently performed by the endoscopic camera system; or, the image processing device is used to identify image features of the patient's part to be observed from the image signal to determine the type of surgery currently performed by the endoscopic camera system.

[0029] In one embodiment, the image processing device is further configured to enable display of the central venous pressure information when determining that the type of surgery currently performed by the endoscopic camera system is a liver resection surgery.

[0030] In one embodiment, the operating unit is further used to obtain a start timing instruction input by a user; the image processing device is further used to execute a timing program when the start timing instruction is obtained from the operating unit, and send timing information to the display based on the timing program; the display is further used to display the timing information.

[0031] According to another aspect of the present application, an embodiment of the present application further provides a surgical system, comprising:

[0032] The endoscopic imaging system according to any one of the above embodiments, and

[0033] A medical device includes a central venous pressure measuring device for obtaining central venous pressure data of a patient.

[0034] According to another aspect of the present application, an embodiment of the present application further provides another surgical system, comprising an endoscopic camera system and a medical device, wherein the endoscopic camera system is directly or indirectly communicatively connected to the medical device;

[0035] The medical device includes a central venous pressure measuring device, which is used to obtain central venous pressure data of the patient;

[0036] The endoscopic camera system is used to collect image signals of the patient's part to be observed, generate a visible image of the patient's part to be observed, and display the visible image; it is also used to obtain the central venous pressure data from the medical device and display the patient's central venous pressure information based on the central venous pressure data.

[0037] In one embodiment, the endoscopic camera system is used to simultaneously display a visual image of the patient's part to be observed and the patient's central venous pressure information.

[0038] In one embodiment, the endoscopic camera system is used to superimpose the central venous pressure information on the visible image for display on the same display; or, the endoscopic camera system is used to display the central venous pressure information and the visible image in two different display areas on the same display.

[0039] In one embodiment, the endoscopic camera system is configured to display the central venous pressure information on a first display and to display the visual image on a second display.

[0040] In one embodiment, the endoscopic camera system is further configured to obtain an operation instruction input by a user through a human-computer interaction interface to turn off or on the display of the central venous pressure information.

[0041] In one embodiment, the endoscope camera system is further configured to output an alarm prompt message based on a pre-configured alarm condition when it is determined that the central venous pressure data meets the alarm condition.

[0042] In one embodiment, the visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the endoscopic camera system is also used to perform parallax processing on the central venous pressure data in accordance with three-dimensional image observation after acquiring the central venous pressure data, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

[0043] In one embodiment, the endoscopic camera system is further configured to determine a type of surgery currently being performed by the endoscopic camera system, and determine whether to turn off or on display of the central venous pressure information based on the type of surgery.

[0044] In one embodiment, the endoscopic camera system is also used to determine the type of surgery currently performed by the endoscopic camera system, including: the endoscopic camera system is used to identify configuration information about the type of surgery set by the user to determine the type of surgery currently performed by the endoscopic camera system; or, the endoscopic camera system is used to identify image features of the patient's part to be observed from the image signal to determine the type of surgery currently performed by the endoscopic camera system.

[0045] In one embodiment, the endoscopic camera system is further configured to enable display of the central venous pressure information when it is determined that the type of surgery currently performed by the endoscopic camera system is a liver resection surgery.

[0046] In one embodiment, the endoscope camera system is further configured to obtain a start timing instruction input by a user, execute a timing program according to the start timing instruction, and display timing information.

[0047] According to another aspect of the present application, an embodiment of the present application further provides an imaging method of an endoscopic camera system, comprising:

[0048] The endoscope camera system provides illumination light to the patient's part to be observed;

[0049] The endoscope camera system collects image signals of the patient's part to be observed;

[0050] The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal;

[0051] The endoscope camera system acquires the central venous pressure data of the patient;

[0052] The endoscope camera system displays central venous pressure information of the patient based on the central venous pressure data.

[0053] In one embodiment, the endoscope camera system displays the visual image and the central venous pressure information simultaneously.

[0054] In one embodiment, the central venous pressure information includes at least one of a real-time monitoring value of the central venous pressure, a central venous pressure trend graph, a central venous pressure change, and a central venous pressure change trend graph.

[0055] In one embodiment, the imaging method further includes: the endoscopic camera system obtains at least one of the patient's heart rate information, blood pressure information, cardiac output information, and medical history data information, and displays at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information simultaneously with the central venous pressure information and the visual image.

[0056] In one embodiment, the endoscopic camera system displays the central venous pressure information of the patient based on the central venous pressure data, including: the endoscopic camera system superimposes the central venous pressure information on the visible image for display on the same display based on the central venous pressure data; or, the endoscopic camera system displays the central venous pressure information and the visible image in two different display areas on the same display based on the central venous pressure data.

[0057] In one embodiment, the endoscopic camera system displays the patient's central venous pressure information based on the central venous pressure data, including: the endoscopic camera system displays the central venous pressure information on a first display and displays the visual image on a second display based on the central venous pressure data.

[0058] In one embodiment, the visible image includes at least one of a white light image and a fluorescent image of the patient's part to be observed, and the visible image includes at least one of a two-dimensional image and a three-dimensional image of the patient's part to be observed.

[0059] In one embodiment, the imaging method further includes: the endoscopic camera system acquiring an operation instruction input by a user to turn off or on the display of the central venous pressure information.

[0060] In one embodiment, the imaging method further includes: the endoscopic camera system outputting an alarm prompt message based on a pre-configured alarm condition when determining that the central venous pressure data meets the alarm condition.

[0061] In one embodiment, the visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the method also includes: after the endoscopic camera system obtains the central venous pressure data, the endoscopic camera system performs parallax processing on the central venous pressure data in accordance with three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

[0062] In one embodiment, the imaging method further includes: the endoscopic camera system determining a type of surgery currently being performed, and determining whether to turn off or on display of the central venous pressure information based on the type of surgery.

[0063] In one embodiment, the endoscopic camera system determines the type of surgery currently being performed, including: the endoscopic camera system identifies configuration information about the type of surgery set by the user to determine the type of surgery currently being performed by the endoscopic camera system; or, the endoscopic camera system identifies image features of the patient's part to be observed from the image signal to determine the type of surgery currently being performed by the endoscopic camera system.

[0064] In one embodiment, the imaging method further comprises:

[0065] The endoscope camera system obtains a start timing instruction input by a user;

[0066] The endoscope camera system executes a timing program according to the start timing instruction;

[0067] The endoscope camera system displays timing information according to the timing program.

[0068] In one embodiment, the imaging method of the endoscopic camera system is used in a liver resection surgery scenario.

[0069] According to another aspect of the present application, an embodiment of the present application further provides an imaging method of an endoscopic camera system for patient tissue resection surgery, comprising:

[0070] The endoscope camera system provides illumination light to the patient's part to be observed;

[0071] The endoscope camera system collects image signals of the patient's part to be observed;

[0072] The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal;

[0073] The endoscope camera system acquires at least one physiological sign data representing the blood pressure of the patient;

[0074] The endoscope camera system displays physiological sign information of the patient based on the at least one physiological sign data. Beneficial effects BRIEF DESCRIPTION OF THE DRAWINGS

[0075] FIG1 is a schematic structural diagram of an endoscope camera system according to an embodiment of the present application;

[0076] FIG2 is a schematic diagram of an interface in which a display of an endoscope camera system according to an embodiment of the present application simultaneously displays a visual image of a patient's part to be observed and a real-time measurement value of the patient's CVP;

[0077] FIG3 is a schematic diagram of an interface of an endoscope camera system according to an embodiment of the present application, in which a display of central venous pressure information and a visual image are displayed in two different display areas;

[0078] FIG4 is a schematic diagram of an interface in which a display of an endoscope camera system according to an embodiment of the present application simultaneously displays a visual image of a patient's part to be observed, the patient's CVP information, and the patient's heart rate information;

[0079] FIG5 is a schematic diagram of an interface in which an endoscopic camera system displays a visual image of a patient's part to be observed and CVP information of the patient via different displays in one embodiment of the present application;

[0080] FIG6 is a schematic diagram of an interface of an endoscope camera system displaying CVP alarm prompt information in one embodiment of the present application;

[0081] FIG7 is a schematic structural diagram of an operating unit of an endoscope camera system according to an embodiment of the present application;

[0082] FIG8 is a schematic diagram of an interface of an endoscope camera system displaying timing information according to an embodiment of the present application;

[0083] FIG9 is a schematic structural diagram of a surgical operating system according to an embodiment of the present application;

[0084] FIG10 is a schematic flow chart of the steps of an imaging method of an endoscope camera system according to an embodiment of the present application;

[0085] FIG11 is a schematic flow chart of the steps of an imaging method of an endoscopic camera system used for patient tissue resection surgery in one embodiment of the present application. Modes for Carrying Out the Invention

[0086] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0087] The following is an introduction to the clinical background involved in this application.

[0088] Laparoscopic surgery generally uses general anesthesia and has complete monitoring. In addition to standard electrocardiogram, respiration, non-invasive blood pressure, blood oxygen saturation, pulse, and body temperature, invasive blood pressure, end-tidal carbon dioxide, anesthetic gas, cardiac output, bispectral index, muscle relaxation, central venous pressure, etc. may also be monitored depending on the different surgeries and patient conditions.

[0089] Before surgery begins, doctors typically induce ventilation in manual mode. In manual mode, after injecting the induction drug, doctors manually squeeze the breathing bag to stimulate the patient's breathing. After induction, doctors typically ventilate the patient using mechanical ventilation. Instead of manually squeezing the bag, the anesthesia ventilator controls the patient's breathing according to the set ventilation mode, respiratory rate, tidal volume, or pressure.

[0090] During the operation, the anesthesiologist will use sedatives, analgesics, muscle relaxants and other drugs to help the patient reach a more ideal state of anesthesia, and will closely monitor the patient's physiological signs during the operation and adjust the medication in a timely manner.

[0091] However, maintenance of low central venous pressure is of particular significance during laparoscopic liver surgery.

[0092] Laparoscopic partial liver resection is currently an important treatment for primary and secondary liver tumors. Liver tissue is fragile, richly supplied with blood, and has a complex vascular distribution. During liver resection, intrahepatic blood vessels and even the hepatic vein are often damaged, leading to excessive bleeding. Extensive bleeding puts patients at risk of serious complications from massive blood transfusions. Reducing bleeding during liver resection and ensuring a smooth operation are issues currently under research and development. The key to successful liver resection is controlling intraoperative bleeding. Hepatic blood flow occlusion and controlling low central venous pressure have been effective methods for controlling intraoperative bleeding.

[0093] Central venous pressure (CVP) refers to the intrathoracic pressure at the entrance of the superior and inferior vena cava into the right atrium and is an indicator of right atrial preload. The normal range of CVP is 5–12 cmH2O. Under normal circumstances, a CVP < 5 cmH2O often indicates poor right atrial filling or hypovolemia.

[0094] Low central venous pressure (LCVP) generally refers to a CVP less than or equal to 5 cmH2O. Even if the CVP is as low as 0-4 cmH2O, it usually does not cause systemic hypotension. Therefore, it is possible to lower the CVP to an appropriate range without affecting arterial blood pressure and preventing hypotension. This is the goal of low central venous pressure.

[0095] Currently, low central venous pressure is maintained clinically mainly through the combined use of anesthetics and antihypertensive drugs, fluid control, patient positioning and other methods.

[0096] Hepatic vascular occlusion is a commonly used clinical method for controlling bleeding during liver resection. Complete hepatic vascular occlusion, also known as the classic Pringle technique, completely blocks the hepatic artery and portal vein at the first portal of the liver. Currently, intermittent hepatic vascular occlusion is commonly used clinically. Intermittent hepatic vascular occlusion generally involves blocking the portal vein for 15 minutes and then releasing it for 5 minutes. The duration of occlusion and release can be adjusted based on the duration of liver resection, the location of the liver segment, and the surgeon's preference. The greatest benefit of this method is that it prolongs the warm ischemia time of the liver, reduces ischemia-reperfusion injury, and reduces visceral congestion. However, it also cannot control hepatic venous reflux bleeding.

[0097] Based on the above clinical scenario, especially during liver resection surgery, when laparoscopic surgery requires monitoring the patient's CVP, the surgeon typically uses a monitor to invasively obtain the patient's CVP data and display it on the monitor. The surgeon then uses the endoscope system to display the surgical images inside the patient's body. The surgeon spends most of their time observing the real-time surgical images displayed on the endoscope system monitor. When the surgeon needs to understand the patient's current CVP information, they shift their gaze to the monitor screen. Due to the length of the surgery, the surgeon must repeatedly switch their gaze to maintain a constant eye on the patient's CVP information.

[0098] In addition, as an independent device outside the endoscope system, the monitor is placed at a certain distance from the endoscope system, and the doctor needs to turn his head to check when switching his line of sight.

[0099] As a centralized display device for patients' physiological parameters, monitors display a wide variety of parameters, and they must tailor the display to the user's settings. Therefore, when doctors need to monitor CVP information, they must first configure the monitor. When checking CVP information, doctors must also navigate the numerous physiological parameters displayed on the screen to locate the CVP area, which can impact their focus during surgery.

[0100] The monitor display screen is usually small, and if it is placed far away from the doctor, it will cause great inconvenience to the doctor in seeing the CVP information clearly.

[0101] Sometimes, the surgeon simply asks another doctor, such as an anesthesiologist, to check the CVP information on the monitor. The anesthesiologist then reports the CVP information to the surgeon in real time, or notifies the surgeon of any abnormalities in the CVP. This can also cause significant inconvenience in surgeries that require simultaneous observation of the patient's CVP.

[0102] To solve one or more of the above technical problems, an embodiment of the present application provides a surgical system, including an endoscopic camera system and a medical device.

[0103] FIG1 is a schematic diagram of the architecture of an endoscope camera system in one embodiment. The endoscope camera system 1000 includes a light source 10, a light guide 20, a rigid endoscope 30, an optical mount 40, a camera head 50, a communication cable 81, a camera host 60, a display 70, and a video connection cable 82.

[0104] The camera host 60 is connected to the camera head 50 via a communication cable 81. The image signal captured by the camera head 50 is transmitted to the camera host 60 via the communication cable 81 for processing. In some embodiments, the communication cable 81 may be a purely electrical communication cable, a purely optical communication cable, or an optoelectronic composite communication cable. When the communication cable 81 comprises an optical communication cable, such as an optical fiber, the camera head 50 converts the image signal (electrical signal) into an optical signal, which is then transmitted to the camera host 60 via the communication cable 81. The camera host 60 then converts the optical signal into an electrical signal. Alternatively, in another embodiment, the communication cable 81 is connected to the camera host 60 via an electrical signal interface. The end of the communication cable 81 connected to the camera host 60 first converts the optical signal into an electrical signal, and then transmits the electrical signal to the camera host 60 via an electrical connector. The camera host 60 is connected to the display 70 via a video cable 82, which transmits the video signal to the display 70 for display. In other embodiments, the camera head 50 and the camera host 60 communicate wirelessly, rather than through the communication cable 81.

[0105] Those skilled in the art should understand that FIG1 is merely an example of an endoscopic camera system 1000 and does not limit the scope of the endoscopic camera system 1000. The endoscopic camera system 1000 may include more or fewer components than those shown in FIG1 , or may combine certain components or include different components. For example, the endoscopic camera system 1000 may also include a dilator, a smoke control device, input / output devices, a network access device, and the like. For another example, the rigid tube endoscope 30 and camera 50 shown in FIG1 are optical rigid tube endoscopes, with the image sensor disposed within the camera 50. In other embodiments, the rigid tube endoscope 30 and camera 50 may be integrated electronic endoscopes (e.g., a 3D electronic endoscope), with the image sensor disposed at the tip of the rigid tube endoscope 30.

[0106] The light source 10 is used to provide an illumination light source to the part to be observed 100. The illumination light source includes a visible light illumination light source and a laser illumination light source corresponding to a fluorescent agent (eg, near-infrared excitation light).

[0107] In this embodiment, the light source 10 includes a visible light source and a laser light source corresponding to the fluorescent agent. The visible light source is an LED light source. In one embodiment, the visible light source can provide multiple monochromatic lights of different wavelength ranges, such as blue light, green light, red light, etc. In other embodiments, the visible light source can also provide a combination of the multiple monochromatic lights, or a wide-spectrum white light source. The wavelength range of the monochromatic light is approximately 400nm to 700nm. The laser light source is used to generate laser. The laser is, for example, near-infrared excitation light (NIR). For example, the peak wavelength of the laser can take at least any one value in the range of 780nm-808nm. The light source 10 can simultaneously provide continuous visible light and laser corresponding to the fluorescent agent to the part to be observed, or provide visible light and laser to the part to be observed in a time-sharing manner.

[0108] Before fluorescence imaging is performed using the endoscopic camera system 1000, a contrast agent, such as indocyanine green (ICG), is introduced into the observed area 100 via intravenous or subcutaneous injection. This allows for imaging of tissue structures and functions (e.g., blood, lymph, and bile in vessels) that are not easily visualized using standard visible light imaging techniques. ICG, commonly known as indocyanine green, diagnostic green needle, or indocyanine green, is a contrast agent commonly used in the clinical diagnosis of cardiovascular diseases and is widely used for imaging choroidal and retinal blood vessels. When the contrast agent in the observed area 100 absorbs the laser light generated by the laser light source corresponding to the fluorescent agent, it produces fluorescence.

[0109] In the embodiments of this application, the medical device may be a medical monitoring device (e.g., a monitor). International Patent Application No. PCT / CN2018 / 123093 discloses a schematic diagram of the architecture of a medical monitoring device (see FIG3 of that patent application), as well as a display scheme for a CVP trend graph. The entire contents of that patent application are incorporated herein by reference. Typically, CVP is measured invasively using a sensor accessory attached to the medical monitoring device. In the embodiments of this application, the medical device may use any existing method for measuring CVP, and this application does not provide a detailed description of this method.

[0110] In an embodiment of the present application, an endoscopic camera system is directly or indirectly connected to a medical device. The medical device includes a central venous pressure measuring device for obtaining central venous pressure data of a patient. The endoscopic camera system is configured to capture image signals of a patient's area to be observed, generate a visual image of the patient's area to be observed, and display the visual image. The endoscopic camera system is further configured to obtain central venous pressure data from the medical device and display the patient's central venous pressure information based on the central venous pressure data.

[0111] The endoscopic camera system obtains the patient's central venous pressure data from the medical device and displays the visual image of the patient's observed part and the central venous pressure information, which is equivalent to displaying the two types of information on the same system, making it convenient for users to observe the two types of information. There is no need to observe the visual image of the patient's observed part from the endoscopic camera system and the central venous pressure information of the patient from the medical device respectively, which solves the problems of low surgical efficiency and inconvenience for user operation in the existing technology.

[0112] Some feasible embodiments of the endoscope camera system are further described below.

[0113] An embodiment of the present application also provides an endoscope camera system, including a light source, an operating unit, an image processing device and a display.

[0114] The light source is used to provide illumination light to a part of a patient to be observed, such as the light source 10 mentioned in FIG. 1 .

[0115] The operating unit is connected to the light source via a light guide, and is configured to direct the illumination light emitted by the light source to the patient's area to be observed via the light guide, and to collect image signals of the patient's area to be observed. In this embodiment, the operating unit may include the rigid tube endoscope 30 and camera 50 shown in Figure 1. These components are collectively referred to as the operating unit in this embodiment.

[0116] The image processing device (e.g., the camera host 60 in FIG1 ) is communicatively connected to the operating unit for acquiring image signals from the operating unit for processing; the image processing device includes an external device communication interface for directly or indirectly communicating with a medical device to acquire the central venous pressure data of the patient from the medical device.

[0117] The display is communicatively connected to the image processing device, and is used to obtain a display signal from the image processing device, and display a visual image of the patient's part to be observed and the patient's central venous pressure information based on the display signal; the display signal is generated based on the image signal and the central venous pressure data.

[0118] In one embodiment, the medical device is a monitor (e.g., a bedside intensive care monitor) that can perform invasive CVP measurements using a sensor accessory. In this case, the image processing device can be directly connected to the monitor. The image processing device can also be indirectly connected to the monitor via a central monitoring station. The central monitoring station typically serves as a centralized location for monitor data for an entire department or hospital, providing aggregated monitoring of data from all monitors. The central monitoring station can communicate with the monitor via a local area network to obtain device information and / or patient data from the monitor. In other embodiments, the central monitoring station can also communicate with other medical devices such as ventilators and infusion pumps to obtain corresponding device information and / or patient data. In this embodiment of the present application, the central monitoring station obtains CVP data from the monitor. In other embodiments, the image processing device can be indirectly connected to the monitor via any other medical device, requiring only that the CVP data be obtained from the monitor.

[0119] The image processing device's external device communication interface can include a wired network interface and a wireless network interface. Wired network interfaces include Ethernet interfaces, such as RJ-45 and SC fiber optic interfaces; wireless network interfaces include Bluetooth modules, Wi-Fi modules, and 4G communication modules. The image processing device can communicate with the medical device via the external device communication interface using the corresponding communication method to obtain CVP data.

[0120] It should be noted that in the embodiments of the present application, CVP data may include raw CVP signals, CVP measurements, and related information data. The CVP information displayed on the display is generated based on the CVP data and may include some or all of the CVP data, such as real-time CVP measurements, CVP trend graphs, CVP changes, and CPV change trend graphs. In other words, it can be understood that CVP information can be directly derived from CVP data or processed for display.

[0121] In an embodiment of the present application, the visible image includes at least one of a white light image or a fluorescence image (pure fluorescence image or a white light and fluorescence superimposed image) of the patient's part to be observed, which is imaged by the endoscope camera system. Furthermore, the visible image includes at least one of a two-dimensional image or a three-dimensional image of the patient's part to be observed. For the endoscope camera system, the user can select to display either the white light image or the fluorescence image, or the two-dimensional image or the three-dimensional image.

[0122] In one embodiment, the display is further configured to simultaneously display a visual image of the patient's part to be observed and the patient's central venous pressure information based on the display signal.

[0123] As shown in Figure 2, a visible image 201 of the patient's part to be observed and a real-time CVP measurement value 202 of the patient are simultaneously displayed on a display. Specifically, the visible image can be a two-dimensional white light image.

[0124] In the embodiment shown in FIG. 2 , the display is used to superimpose CVP information on a visual image for display.

[0125] As shown in FIG3 , in another embodiment, the display is used to display the central venous pressure information 202 and the visual image 201 in two different display areas respectively.

[0126] In one embodiment, the image processing device is further used to obtain at least one of the patient's heart rate information, blood pressure information (different from CVP blood pressure information), cardiac output information, and medical history data information from the medical device through an external device communication interface; the display is further used to simultaneously display at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information together with the central venous pressure information and the visual image.

[0127] As shown in FIG. 4 , a visual image 201 of an endoscope camera system, CVP information 202 , and heart rate information 203 are displayed.

[0128] In some embodiments, heart rate, blood pressure, and cardiac output information can be measured by sensors attached to the medical device itself, or obtained from other medical devices. Medical history data can be input by the user into the medical device, or obtained from other medical devices (e.g., hospital information systems).

[0129] As shown in FIG5 , in one embodiment, the display includes a first display 501 and a second display 502. The first display 501 is used to display central venous pressure information, and the second display 502 is used to display visual images. Of course, in some embodiments, the first display 501 can also be used to simultaneously display at least one of heart rate information, blood pressure information, and medical history data.

[0130] In one embodiment, the image processing device is further configured to output an alarm prompt message based on pre-configured alarm conditions when it determines that the central venous pressure data meets the alarm conditions. As shown in FIG6 , CVP alarm message 601 is displayed. Specifically, the alarm condition may be a real-time CVP measurement value below 4 cmH2O. By providing a CVP alarm within the endoscopic camera system, the user can more intuitively understand the patient's current CVP information, avoiding the need for the user to distract from the CVP alarm message on the medical device. The alarm prompt message may include flashing text displayed on the display, an alarm sound, etc. It should be understood that in addition to outputting the alarm prompt message to the display for display, the image processing device may also directly display the alarm prompt message, such as by directly displaying the alarm prompt sound. Furthermore, the alarm prompt message includes information indicating the occurrence of the alarm and may also include information regarding treatment recommendations for the alarm.

[0131] In one embodiment, the operating unit also includes a human-computer interaction interface for receiving user input commands to turn the display of central venous pressure information on or off. FIG7 is a schematic diagram of the structure of the operating unit in one embodiment. The human-computer interaction interface includes physical buttons 701 provided on the operating unit, which are used to receive user input commands. For example, one of the buttons is used to turn the display of CVP information on or off when pressed by the user. In this embodiment, the user can independently control whether CVP information is displayed, conveniently turning off the display of CVP information when it is not needed to avoid interfering with the observation of the visual image of the endoscopic camera system. In other embodiments, the human-computer interaction interface can also be other hardware capable of human-computer interaction, such as a touch screen or voice control module. In some embodiments, the operating unit can include an insertion portion at the front end for insertion into the patient's body and a grip portion at the rear end for holding the device. The insertion portion and grip portion can be integrated or detachably connected via an optical mount 40 as shown in FIG1 . Generally, the operating unit needs to capture image light from the patient's area to be observed and convert the image light into an image signal using an image sensor. There may be one or more image sensors, which may be arranged at the front end of the insertion portion or in the gripping portion.

[0132] In one embodiment, the visible image includes at least a three-dimensional image of the patient's observed area captured by the endoscopic camera system. The image processing device is further configured to, after acquiring the central venous pressure data, perform parallax processing on the central venous pressure data consistent with three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image. In this embodiment, since the visible image is a three-dimensional image, a user typically needs to wear 3D glasses to observe the three-dimensional image. However, since the CVP data acquired by the endoscopic camera system from the medical device is not three-dimensional information, in order to enable the user to still observe clear CVP information while wearing 3D glasses, the image processing device needs to perform parallax processing on the CVP data, so that the user can simultaneously observe a clear three-dimensional image and CVP information while wearing 3D glasses.

[0133] In one embodiment, the image processing device is further configured to determine the type of surgery currently being performed by the endoscopic camera system and, based on the surgery type, to disable or enable the display of central venous pressure information. This allows the user to view CVP information during surgical scenarios where it is needed (e.g., liver resection). In other cases, the image processing device can suppress the display of CVP information to avoid unnecessary distractions.

[0134] In one embodiment, the image processing device is further configured to enable display of central venous pressure information when determining that the type of surgery currently being performed by the endoscopic camera system is a liver resection. Because liver resection surgery typically requires observing the patient's CVP to perform a liver occlusion procedure, enabling display of central venous pressure information is particularly necessary in the context of a liver resection.

[0135] In one embodiment, an image processing device is configured to determine the type of surgery currently being performed by an endoscopic camera system, including: the image processing device is configured to identify configuration information regarding the surgery type set by a user to determine the type of surgery currently being performed by the endoscopic camera system. Typically, before performing an endoscopic surgery, a user may select the corresponding surgery type on the image processing device. In this case, the image processing device may automatically determine whether to enable a CVP information display function based on the user-selected surgery type.

[0136] In one embodiment, an image processing device is configured to determine the type of surgery currently being performed by an endoscopic camera system, including: the image processing device is configured to identify image features of a patient's part to be observed from an image signal to determine the type of surgery currently being performed by the endoscopic camera system. For example, in a liver resection surgery scenario, displaying CVP information has greater clinical value. In this case, the image processing device may identify image features of the patient's part to be observed. For example, if the liver is identified, the image processing device may determine that the current surgery is likely a liver resection, and automatically enable the CVP information display function.

[0137] As mentioned above, for the interstitial hepatic blood flow occlusion method, doctors usually need to time the blood flow occlusion time. Therefore, in one embodiment, the operating unit is also used to obtain the start timing instruction input by the user; the image processing device is also used to execute the timing program when the start timing instruction is obtained from the operating unit, and send the timing information to the display based on the timing program; the display is also used to display the timing information. As shown in Figure 8, 801 is the timing information displayed. The user can input the start timing instruction through the physical button on the operating unit. By adding a timing function to the endoscopic camera system, it can be more convenient for the user to perform surgery in a specific surgical scenario. The user only needs to observe the display of the endoscopic camera system to understand all the information that needs to be paid attention to.

[0138] As shown in FIG9 , an embodiment of the present application further provides a surgical system comprising an endoscopic camera system 901 and a medical device 902. The medical device 902 comprises a central venous pressure measuring device 903 for acquiring central venous pressure data of a patient. The endoscopic camera system is configured to acquire image signals of a patient's part to be observed, generate a visual image of the patient's part to be observed, and display the visual image; and is further configured to acquire central venous pressure data from the medical device and display the patient's central venous pressure information based on the central venous pressure data.

[0139] In one embodiment, the central venous pressure measurement device 903 can measure the patient's CVP data in an invasive manner.

[0140] In some embodiments, the endoscopic camera system 901 may adopt the endoscopic camera system provided in any of the above embodiments.

[0141] In other embodiments, the endoscopic camera system 901 may employ an endoscopic camera system different from that provided in the aforementioned embodiments. For example, the display of the endoscopic camera system 901 may be provided with an external device communication interface for direct or indirect communication with a medical device to obtain the patient's CVP data from the medical device. The display is also communicatively connected to the image processing device of the endoscopic camera system to obtain a display signal output by the image processing device; based on this display signal and the obtained CVP data, the display displays a visual image of the patient's observed area and the patient's CVP information. Of course, the display may also directly obtain a display signal for CVP information from the medical device and display the information directly based on the obtained display signal. However, it should be noted that CVP data should be understood as data transmitted between devices, and CVP information should be understood as information displayed on the display.

[0142] That is to say, in different embodiments, the endoscopic camera system 901 can communicate with the medical device through different devices, and it only needs to display the acquired CVP data on the display of the endoscopic camera system 901. This application no longer lists these feasible solutions one by one. Ordinary technicians in this field can make appropriate modifications based on the above-mentioned embodiments to solve the same technical problems.

[0143] As shown in FIG10 , the embodiment of the present application further provides an imaging method of an endoscopic camera system, comprising the following steps:

[0144] Step 1.1: The endoscope camera system provides illumination light to the patient's part to be observed.

[0145] Step 1.2: The endoscope camera system collects image signals of the patient's part to be observed.

[0146] Step 1.3: The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal.

[0147] Step 1.4: The endoscope camera system obtains the central venous pressure data of the patient.

[0148] Step 1.5: The endoscope camera system displays the central venous pressure information of the patient based on the central venous pressure data.

[0149] In one embodiment, the visual image and the central venous pressure information are displayed simultaneously.

[0150] In one embodiment, the central venous pressure information includes at least one of a real-time monitoring value of the central venous pressure, a central venous pressure trend graph, a central venous pressure change, and a central venous pressure change trend graph.

[0151] In one embodiment, the imaging method further includes: the endoscopic camera system obtains at least one of the patient's heart rate information, blood pressure information, cardiac output information, and medical history data information, and displays at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information simultaneously with the central venous pressure information and the visual image.

[0152] In one embodiment, the endoscopic camera system displays the central venous pressure information of the patient based on the central venous pressure data, including: the endoscopic camera system superimposes the central venous pressure information on the visible image for display on the same display based on the central venous pressure data; or, the endoscopic camera system displays the central venous pressure information and the visible image in two different display areas on the same display based on the central venous pressure data.

[0153] In one embodiment, the endoscopic camera system displays the central venous pressure information of the patient based on the central venous pressure data, including: the endoscopic camera system displays the central venous pressure information on the first display and displays the visual image on the second display based on the central venous pressure data.

[0154] In one embodiment, the visible image includes at least one of a white light image and a fluorescent image of the patient's part to be observed, and the visible image includes at least one of a two-dimensional image and a three-dimensional image of the patient's part to be observed.

[0155] In one embodiment, the imaging method further includes: the endoscopic camera system acquiring an operation instruction input by a user to turn off or on the display of the central venous pressure information.

[0156] In one embodiment, the imaging method further includes: the endoscopic camera system outputs an alarm prompt message based on a pre-configured alarm condition when determining that the central venous pressure data meets the alarm condition.

[0157] In one embodiment, the visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the imaging method also includes: after the endoscopic camera system obtains the central venous pressure data, the endoscopic camera system performs parallax processing on the central venous pressure data in accordance with three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

[0158] In one embodiment, the imaging method further includes: the endoscopic camera system determining the type of surgery currently being performed, and determining whether to turn off or on the display of the central venous pressure information based on the type of surgery.

[0159] In one embodiment, the endoscopic camera system determines the type of surgery currently being performed, including: the endoscopic camera system identifies configuration information about the surgery type set by the user to determine the type of surgery currently being performed by the endoscopic camera system; or, the endoscopic camera system identifies image features of the patient's part to be observed from the image signal to determine the type of surgery currently being performed by the endoscopic camera system.

[0160] In one embodiment, the imaging method further comprises:

[0161] The endoscope camera system obtains a start timing instruction input by a user;

[0162] The endoscope camera system executes a timing program according to the start timing instruction;

[0163] The endoscope camera system displays timing information according to the timing program.

[0164] In one embodiment, the imaging method is used in a liver resection surgical setting.

[0165] As shown in FIG11 , an embodiment of the present application further provides an imaging method of an endoscopic camera system for patient tissue resection surgery, comprising the following steps:

[0166] Step 2.1: The endoscope camera system provides illumination to the patient's area to be observed.

[0167] Step 2.2: The endoscope camera system collects image signals of the patient's part to be observed.

[0168] Step 2.3: The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal.

[0169] Step 2.4: The endoscope camera system acquires at least one physiological sign data representing the blood pressure of the patient.

[0170] Step 2.5: The endoscope camera system displays the patient's physiological sign information based on the at least one physiological sign data.

[0171] Physiological signs that characterize a patient's blood pressure include arterial blood pressure, capillary pressure, venous blood pressure, etc. These physiological signs can be measured from different parts of the patient. In one embodiment, the physiological sign data is central venous pressure data.

[0172] Some steps involved in the endoscopic imaging method provided in the embodiment of the present application can refer to the description of the endoscopic camera system in the above embodiment.

[0173] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An endoscope camera system, characterized in that: include: A light source, used for providing illumination to the patient's part to be observed; an operating unit connected to the light source via a light guide, and configured to guide the illumination light emitted by the light source to the patient's part to be observed via the light guide, and to collect an image signal of the patient's part to be observed; an image processing device, the image processing device being communicatively connected to the operating unit and configured to obtain the image signal from the operating unit for processing; the image processing device comprising an external device communication interface, configured to be directly or indirectly communicatively connected to a medical device to obtain central venous pressure data of the patient from the medical device; A display, the display being communicatively connected to the image processing device, for obtaining a display signal from the image processing device and displaying a visual image of the patient's part to be observed and the patient's central venous pressure information based on the display signal; the display signal is generated based on the image signal and the central venous pressure data.

2. The system according to claim 1, wherein The display is further configured to simultaneously display a visual image of the patient's part to be observed and central venous pressure information of the patient based on the display signal.

3. The system according to claim 1, wherein: The central venous pressure information includes at least one of a real-time monitoring value of the central venous pressure, a central venous pressure trend graph, a central venous pressure change, and a central venous pressure change trend graph.

4. The system according to claim 1, wherein: The image processing device is also used to obtain at least one of the patient's heart rate information, blood pressure information, cardiac output information, and medical history data information from the medical device through the external device communication interface; the display is also used to display at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information simultaneously with the central venous pressure information and the visual image.

5. The system according to claim 1, wherein: The display is used to superimpose the central venous pressure information on the visible image for display; or, the display is used to display the central venous pressure information and the visible image in two different display areas respectively.

6. The system according to claim 1, wherein: The display includes a first display and a second display, the first display is used to display the central venous pressure information, and the second display is used to display the visual image.

7. The system according to claim 1, wherein: The visible image includes at least one of a white light image and a fluorescent image of the patient's part to be observed imaged by the endoscopic camera system, and the visible image includes at least one of a two-dimensional image and a three-dimensional image of the patient's part to be observed imaged by the endoscopic camera system.

8. The system according to claim 1, wherein: The operating unit further includes a human-computer interaction interface for acquiring an operating instruction input by a user to turn off or on the display of the central venous pressure information.

9. The system according to claim 1, wherein: The image processing device is further configured to output an alarm prompt message based on a pre-configured alarm condition when it is determined that the central venous pressure data meets the alarm condition.

10. The system according to claim 1, wherein: The visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the image processing device is also used to, after acquiring the central venous pressure data, perform parallax processing on the central venous pressure data in accordance with three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

11. The system according to any one of claims 1 to 10, wherein: The image processing device is further configured to determine a type of surgery currently being performed by the endoscopic camera system, and determine whether to turn off or on display of the central venous pressure information based on the type of surgery.

12. The system according to claim 11, wherein The image processing device is used to determine the type of surgery currently performed by the endoscopic camera system, including: the image processing device is used to identify configuration information about the surgery type set by the user to determine the type of surgery currently performed by the endoscopic camera system; or, the image processing device is used to identify image features of the patient's part to be observed from the image signal to determine the type of surgery currently performed by the endoscopic camera system.

13. The system according to claim 11, wherein: The image processing device is further configured to start displaying the central venous pressure information when determining that the type of surgery currently performed by the endoscopic camera system is a liver resection surgery.

14. The system according to any one of claims 1 to 10, wherein: The operating unit is further configured to obtain a start timing instruction input by a user; the image processing device is further configured to execute a timing program upon obtaining the start timing instruction from the operating unit, and to send timing information to the display based on the timing program; the display is further configured to display the timing information.

15. A surgical system, characterized in that: include: The endoscopic camera system according to any one of claims 1 to 14, and A medical device includes a central venous pressure measuring device for obtaining central venous pressure data of a patient.

16. A surgical system, characterized in that: It includes an endoscopic camera system and a medical device, wherein the endoscopic camera system is directly or indirectly connected to the medical device for communication; The medical device includes a central venous pressure measuring device, which is used to obtain central venous pressure data of the patient; The endoscopic camera system is used to collect image signals of the patient's part to be observed, generate a visible image of the patient's part to be observed, and display the visible image; it is also used to obtain the central venous pressure data from the medical device and display the patient's central venous pressure information based on the central venous pressure data.

17. The surgical system of claim 16, wherein: The endoscope camera system is used to simultaneously display the visible image of the patient's part to be observed and the patient's central venous pressure information.

18. The surgical system of claim 16, wherein: The endoscope camera system is used to superimpose the central venous pressure information on the visible image for display on the same display; or, the endoscope camera system is used to display the central venous pressure information and the visible image in two different display areas on the same display.

19. The surgical system of claim 16, wherein: The endoscope camera system is used to display the central venous pressure information on a first display and to display the visual image on a second display.

20. The surgical system of claim 16, wherein: The endoscope camera system is further configured to obtain an operation instruction input by a user through a human-computer interaction interface to turn off or on the display of the central venous pressure information.

21. The surgical system of claim 16, wherein: The endoscope camera system is further configured to output an alarm prompt message based on a pre-configured alarm condition when it is determined that the central venous pressure data meets the alarm condition.

22. The surgical system of claim 16, wherein: The visible image includes at least a three-dimensional image of the patient's observed part imaged by the endoscopic camera system; the endoscopic camera system is also used to, after acquiring the central venous pressure data, perform parallax processing on the central venous pressure data in accordance with three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

23. The surgical system according to any one of claims 16 to 22, wherein: The endoscope camera system is further configured to determine a type of surgery currently being performed by the endoscope camera system, and determine whether to turn off or on display of the central venous pressure information based on the type of surgery.

24. The surgical system of claim 23, wherein: The endoscopic camera system is also used to determine the type of surgery currently performed by the endoscopic camera system, including: the endoscopic camera system is used to identify configuration information about the surgery type set by the user to determine the type of surgery currently performed by the endoscopic camera system; or, the endoscopic camera system is used to identify image features of the patient's part to be observed from the image signal to determine the type of surgery currently performed by the endoscopic camera system.

25. The surgical system of claim 23, wherein: The endoscopic camera system is further configured to enable display of the central venous pressure information when determining that the type of surgery currently being performed by the endoscopic camera system is a liver resection surgery.

26. The surgical system according to any one of claims 16 to 22, wherein: The endoscope camera system is further configured to obtain a start timing instruction input by a user, execute a timing program according to the start timing instruction, and display timing information.

27. An imaging method of an endoscope camera system, characterized in that: include: The endoscope camera system provides illumination light to the patient's part to be observed; The endoscope camera system collects image signals of the patient's part to be observed; The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal; The endoscope camera system acquires the central venous pressure data of the patient; The endoscope camera system displays central venous pressure information of the patient based on the central venous pressure data.

28. The method of claim 27, wherein: The endoscope camera system displays the visible image and the central venous pressure information simultaneously.

29. The method of claim 27, wherein: The central venous pressure information includes at least one of a real-time monitoring value of the central venous pressure, a central venous pressure trend graph, a central venous pressure change, and a central venous pressure change trend graph.

30. The method of claim 27, wherein: Also includes: The endoscopic camera system obtains at least one of the patient's heart rate information, blood pressure information, cardiac output information, and medical history data information, and displays at least one of the heart rate information, blood pressure information, cardiac output information, and medical history data information simultaneously with the central venous pressure information and the visual image.

31. The method of claim 28, wherein The endoscopic camera system displays the patient's central venous pressure information based on the central venous pressure data, including: the endoscopic camera system superimposes the central venous pressure information on the visible image for display on the same display based on the central venous pressure data; or, the endoscopic camera system displays the central venous pressure information and the visible image in two different display areas on the same display based on the central venous pressure data.

32. The method of claim 28, wherein: The endoscope camera system displays the central venous pressure information of the patient based on the central venous pressure data, including: the endoscope camera system displays the central venous pressure information on a first display and displays the visible image on a second display based on the central venous pressure data.

33. The method of claim 27, wherein: The visible image includes at least one of a white light image and a fluorescent image of the patient's part to be observed, and the visible image includes at least one of a two-dimensional image and a three-dimensional image of the patient's part to be observed.

34. The method of claim 27, wherein: Also includes: The endoscope camera system obtains an operation instruction input by a user to turn off or on the display of the central venous pressure information.

35. The method of claim 27, wherein: Also includes: The endoscope camera system outputs an alarm prompt message based on a pre-configured alarm condition when determining that the central venous pressure data meets the alarm condition.

36. The method of claim 27, wherein: The visible image at least includes a three-dimensional image of the patient's part to be observed imaged by the endoscopic camera system; the method also includes: after the endoscopic camera system obtains the central venous pressure data, the central venous pressure data is subjected to parallax processing that conforms to three-dimensional image observation, so that the displayed central venous pressure information has a matching parallax with the three-dimensional image.

37. The method according to any one of claims 27 to 36, wherein: Also includes: The endoscope camera system determines the type of surgery currently being performed and determines whether to turn off or on the display of the central venous pressure information based on the type of surgery.

38. The method of claim 37, wherein: The endoscopic camera system determines the type of surgery currently being performed, including: the endoscopic camera system identifies configuration information about the surgery type set by the user to determine the type of surgery currently being performed by the endoscopic camera system; or, the endoscopic camera system identifies image features of the patient's part to be observed from the image signal to determine the type of surgery currently being performed by the endoscopic camera system.

39. The method according to any one of claims 27 to 36, wherein: Also includes: The endoscope camera system obtains a start timing instruction input by a user; The endoscope camera system executes a timing program according to the start timing instruction; The endoscope camera system displays timing information according to the timing program.

40. The method of claim 27, wherein the imaging method of the endoscopic camera system is used in a liver resection surgery scenario.

41. An imaging method of an endoscopic camera system for patient tissue resection surgery, characterized in that: include: The endoscope camera system provides illumination light to the patient's part to be observed; The endoscope camera system collects image signals of the patient's part to be observed; The endoscope camera system processes the image signal and displays a visible image of the patient's part to be observed based on the processed image signal; The endoscope camera system acquires at least one physiological sign data representing the blood pressure of the patient; The endoscope camera system displays physiological sign information of the patient based on the at least one physiological sign data.

Images