Laparoscope for gastrointestinal surgery

Abstract

The invention discloses a laparoscope for gastrointestinal surgery. The laparoscope comprises a laparoscope body, a light source system and an image processing system, the laparoscope body comprises a laparoscope handle, a camera and a bending control mechanism, and the camera is arranged on one side of the far end of the laparoscope handle; the bending control mechanism is used for controlling the deflection direction and the deflection angle of the camera; the bending control mechanism comprises a bendable end part and a bending control unit; the bendable end part is arranged at the far end of the mirror handle, the bendable end part is connected with the camera, and the bending control unit is used for controlling the bending direction and the bending angle of the bendable end part; the light source system is used for providing light for the camera; and the image processing system is used for processing and displaying the image acquired by the camera. Deflection of the camera is achieved by arranging the bending control mechanism, the surgical operation requirement is better met, and medical staff can better diagnose the illness state conveniently.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a laparoscope for gastrointestinal surgery. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive method that performs gastrointestinal surgery with the help of a laparoscope. The laparoscope camera and various special surgical instruments are inserted through a small incision. The images of various organs in the abdominal cavity taken by the camera inserted into the abdominal cavity are transmitted to a TV screen. The surgeon observes the images and uses various surgical instruments to perform operations outside the body to complete the operation.

[0003] The control of the laparoscope lens will affect the medical staff's acquisition of images of the patient's body and affect the diagnosis results; therefore, the control of the laparoscope lens is very important. In order to solve the control problem of the laparoscope lens, the prior art CN112244753B discloses a laparoscope lens fixing device, including a lifting frame, an adjustment support seat, a feeding adjustment component, a limiting stabilization component, and a feeding component; the lifting frame is used to adjust the position of the laparoscope, and a body connecting ball head is provided on the body of the laparoscope. The laparoscope and the feeding seat are connected by the body connecting ball head, so that the position of the laparoscope can be changed without dead angles. The feeding of the laparoscope is realized by the feeding adjustment component, and a sliding electromagnet is provided on the ball head connecting seat. After the sliding electromagnet is energized, it is magnetic and mutually adsorbed with the electromagnet guide column, thereby limiting the state of the laparoscope. The invention has a novel structure, solves the cumbersome operation of holding the laparoscope lens, and improves the work efficiency of medical staff. However, the invention also has some problems. The body / lens of the laparoscope of the invention can only change position within the orientation allowed by the connecting ball and cannot be deflected; it cannot meet the demand for larger orientation changes of the lens.

[0004] The present invention is made to solve the above problems commonly existing in the art.

[0005] The foregoing discussion of the background art is intended only to facilitate an understanding of the present invention. This discussion does not acknowledge or admit that any of the material referred to is part of the common general knowledge. Summary of the invention

[0006] The purpose of the present invention is to propose a laparoscope for gastrointestinal surgery in view of the current shortcomings.

[0007] In order to overcome the shortcomings of the prior art, the present invention adopts the following technical solutions:

[0008] A laparoscope for gastrointestinal surgery, comprising a laparoscope body, a light source system and an image processing system; the laparoscope body comprises a handle, a camera and a bending control mechanism, and the camera is arranged at the distal end of the handle;

[0009] The bending control mechanism is used to control the deflection direction and deflection angle of the camera; the bending control mechanism includes a bendable end and a bending control unit;

[0010] The bendable end is arranged at the distal end of the mirror handle, the bendable end is connected to the camera, and the bending control unit is used to control the bending direction and bending angle of the bendable end;

[0011] The light source system is used to provide light source for the camera;

[0012] The image processing system is used to process and display the images collected by the camera.

[0013] Furthermore, the bendable end is a cylindrical structure, the bending control unit includes a controller and a plurality of ion-based electrodes, the controller is connected to a power supply, the plurality of ion-based electrodes are circumferentially arranged around the bendable end, and the controller is used to control the operating voltage and frequency of each ion-based electrode.

[0014] Furthermore, the laparoscope body also includes a rotation connection mechanism, and the rotation connection mechanism is used to control the rotation of the camera.

[0015] Furthermore, the light source system includes a light source body and an optical fiber bundle, and the light source body transmits light to the camera through the optical fiber bundle.

[0016] Furthermore, the image processing system includes an image acquisition module, a signal conversion module, an image processing module and a display module; the image acquisition module is connected to the camera to convert the image captured by the camera into a digital signal; the signal conversion module converts the digital signal into an analog signal; the image processing module processes the analog signal to form a processed image, and the processed image is displayed through the display module.

[0017] Furthermore, the laparoscope body also includes an operating rod, the proximal end of the scope handle is connected to the operating rod, and the operating rod is used to control the movement and operation of the camera; the operating rod is provided with a control switch button for controlling the movement of the camera.

[0018] The beneficial effects achieved by the present invention are:

[0019] 1. A bendable end is provided at the distal end of the handle to realize the deflection control of the camera, so as to better meet the needs of surgical operation and facilitate medical staff to better diagnose the disease;

[0020] 2. By arranging ion-based electrodes around the bendable end, and selecting one or more corresponding ion-based electrodes for charge control, the bending direction can be controlled; by controlling the voltage and frequency of the ion-based electrodes, the bending angle of the bendable end can be accurately controlled;

[0021] 3. By setting a rotating connection mechanism to control the rotation of the lens, the position of the lens can be adjusted in a small range, which is convenient for medical staff to make micro-adjustments of the observation angle of the patient's site; at the same time, the bendable end and the rotating connection mechanism can cooperate to enable the camera to shoot the patient's site from different angles;

[0022] 4. By setting an operating lever and a control switch button on the operating lever, medical operators can easily and quickly adjust the position of the camera to obtain the required pictures; the light source system provides light to the camera and can adjust the light to improve the quality of the image obtained by the camera.

[0023] 5. The image processing system processes the images acquired by the camera by setting up an image acquisition module, a signal conversion module, an image processing module and a display module, so as to facilitate medical staff to better observe the details of the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0025] Figure 1 Schematic diagram of the main components of a laparoscope for gastrointestinal surgery in one embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the components of a laparoscope body in an embodiment of the present invention.

[0027] Figure 3 Schematic diagram of main components of a bending control mechanism in an embodiment of the present invention.

[0028] Figure 4 Schematic diagram of main components of a bending control unit in an embodiment of the present invention.

[0029] Figure 5 FIG. 4 is a schematic diagram of components of a light source system in an embodiment of the present invention.

[0030] Figure 6 FIG. 1 is a schematic diagram of main components of an image processing system in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail in combination with its embodiments below; it should be pointed out that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present case. For those skilled in the art, after reviewing the following detailed description, other systems, methods and / or features of this embodiment will become apparent. And the terms describing the positional relationship in the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0032] Embodiment 1:

[0033] A laparoscope for gastrointestinal surgery, such as Figure 1 As shown, it includes a laparoscope body, a light source system and an image processing system; Figure 2 As shown, the laparoscope body includes a handle, a camera, and a bending control mechanism, and the camera is arranged at the distal end of the handle;

[0034] The bending control mechanism is used to control the deflection direction and deflection angle of the camera; Figure 3 As shown, the bending control mechanism includes a bendable end portion and a bending control unit;

[0035] The bendable end portion is arranged at the distal end of the mirror handle, the bendable end portion is connected to the camera, and the bending control unit is used to control the bending direction and bending angle of the bendable end portion, thereby controlling the deflection direction and deflection angle of the camera;

[0036] The light source system is used to provide light source for the camera;

[0037] The image processing system is used to process and display the images collected by the camera.

[0038] Wherein, the distal end of the handle is the end of the handle used to extend into the gastrointestinal tract;

[0039] Optionally, the bendable end is a cylindrical structure, such as Figure 4 As shown, the bending control unit includes a controller and a plurality of ion-based electrodes. The controller is connected to a power supply. The plurality of ion-based electrodes are circumferentially arranged around the flexible end. The controller is used to control the operating voltage and frequency of each ion-based electrode to control the bending direction and bending angle of the flexible end.

[0040] Wherein, the bendable end is made of a polymer electrolyte material, such as a fluorine-containing polymer with good stability and biocompatibility, specifically a perfluoroionomer; wherein the ion-based electrode is arranged at a position close to the distal end of the bendable end.

[0041] Wherein, the controller controls the application of electric signals to different ion-based electrodes, thereby causing the metal cations in the bendable end to move in the direction determined by the applied electric signal. This cation migration generated by the applied electric signal causes the portion of the bendable end near the anode to expand, and the bendable end to bend in the direction of the remaining unexpanded portion. Therefore, the size and direction of the bending deformation of the bendable end can be controlled by strategically selecting one or more ion-based electrodes to be energized and adjusting the electric signal (such as the positive electrode or the negative electrode) applied to the ion-based electrode.

[0042] Optional, such as Figure 2 As shown, the laparoscope body also includes a rotation connection mechanism, and the rotation connection mechanism is used to control the rotation of the camera head.

[0043] Among them, in one embodiment, the rotating connection mechanism includes a ball head and a hydraulic control system for controlling the rotation of the ball head; the hydraulic control system includes a small hydraulic cylinder installed inside the bendable end, and the piston rod of the hydraulic cylinder protrudes relative to the bendable end and is connected to the ball head; the bendable end at the far end of the mirror handle is connected to the camera through the ball head of the rotating connection mechanism, and the camera is fixed on the ball head; in one embodiment, the ball head is a hollow structure and is made of lightweight materials such as aluminum alloy and titanium alloy to reduce or control the weight of the far end of the mirror handle, improve the stability of the bendable end, and ensure the flexibility of the ball head rotation. The specific structure and working principle of the hydraulic control system for controlling the rotation of the ball head are already existing technologies and are well known to technicians in this field, and will not be described in detail here.

[0044] Among them, the bendable end and the rotating connection mechanism cooperate so that the camera can take pictures of the patient's site from different angles of the patient's site; for example, assuming that the camera is initially facing the patient's site, and the medical staff wants to obtain the image of the left side of the patient's site, the bendable end can be bent toward the left side of the patient's site to drive the camera to turn to the left side of the patient's site, and then the rotating connection mechanism can be used to rotate the camera to the right to aim at the patient's site on the right. At this time, the camera can obtain the image of the left side of the patient's site.

[0045] Optional, such as Figure 5 As shown, the light source system includes a light source body and an optical fiber bundle, and the light source body transmits light to the camera through the optical fiber bundle.

[0046] Optional, such as Figure 6As shown, the image processing system includes an image acquisition module, a signal conversion module, an image processing module and a display module; the image acquisition module is connected to the camera to convert the image captured by the camera into a digital signal; the signal conversion module converts the digital signal into an analog signal; the image processing module processes the analog signal to form a processed image, and the processed image is displayed through the display module.

[0047] The image processing module may integrate image processing functions such as digital filtering, edge detection, image scaling, and image contrast and saturation adjustment;

[0048] Among them, the image processing module also includes an input unit, which is used to trigger the image processing module to perform corresponding image processing. In one embodiment, the image processing module is integrated into a computer, and the input unit includes a keyboard and a mouse. Medical operators trigger the corresponding processing work of the digital signal processor (DSP) and the scaling unit through the keyboard and mouse.

[0049] Wherein, the display module includes a video interface and a display; the video interface receives the unprocessed and / or processed digital signals of the image processing module; the unprocessed digital signals, such as the images acquired by the corresponding camera and transmitted to the image processing module, but not processed by the image processing module;

[0050] Optional, such as Figure 2 As shown, the laparoscope body also includes an operating rod, the proximal end of the handle is connected to the operating rod, and the operating rod is used to control the movement and operation of the camera; the operating rod is provided with a control switch button for controlling the movement of the camera.

[0051] Wherein, the camera movement includes the camera following the bendable end to perform bending movement and / or performing rotational movement through the rotation connection mechanism; wherein, the control switch button includes a bending control switch button, the bending control mechanism is electrically connected to the bending control switch button and triggers the bending control of the bendable end through the bending control switch button. wherein, the control switch button also includes a rotation control switch button, the hydraulic control system is electrically connected to the rotation control switch button and triggers the rotation control of the ball head through the rotation control switch button.

[0052] Among them, in one embodiment, the bending control switch button is a rotating operating handle, and the rotation angle of the camera is adjusted by rotating the operating head; the rotating operating handle is arranged on the operating rod, and the size is a size that can be covered and operated by a thumb; the medical operator can hold the operating rod and use the thumb to control the rotation of the rotating operating handle.

[0053] Wherein, the control switch button includes a camera button, and the camera button is electrically connected to the camera and the light source system to control the camera to perform shooting.

[0054] Embodiment 2: This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the above technical features and is further described in detail:

[0055] In one embodiment, if Figure 2 As shown, the laparoscope body also includes an auxiliary lens, and the light source system is also used to provide a light source for the auxiliary lens; the auxiliary lens is arranged at the distal end of the handle and close to the bendable end, and the auxiliary lens is used to obtain the position of the bendable end and the ball head on the bendable end; the bendable end is provided with a turning mark, and the turning mark corresponds to the number of ion bases, for example, the number of ion bases is three, and the number of turning marks corresponds to three, at least three turning marks are evenly spaced and arranged on the circumference of the bendable end, in one embodiment, all the turning marks are represented by signal lights of different colors. In one embodiment, the number of bending control switch buttons on the operating rod corresponds to the number of the turning marks; for example, in one embodiment, the turning mark includes 4 color signal lights, respectively red, yellow, blue and green, and the number of bending control switch buttons on the operating rod is also 4, and the color of the bending control switch button corresponds to the color of the signal light; when the bendable end needs to bend in the direction of the red signal light, the medical operator can press the red bendable button accordingly. Further, in another embodiment, it is assumed that the turn mark includes a signal light of four colors, namely red, yellow, blue and green, and the bending control switch button on the operating rod is divided into four corresponding colors. The colors of the four bending control switch buttons correspond to the colors of the four color signal lights, and each color of the bending control switch button includes a plurality of sub-buttons of different bending levels, each sub-button corresponds to a different bending angle, for example, each color of the bending control switch button includes three sub-buttons of bending levels, and the three sub-buttons correspond to 15° bending, 45° bending, and 60° bending, respectively. It should be noted that the number of turn marks is not limited to 4 colors, and the bending level in each color button is neither limited to 3 nor limited to 15°, 45°, and 60°. Those skilled in the art can make different settings according to actual conditions. It is easy to understand that different bending levels correspond to different operating voltages and frequencies of the ion-based electrode.

[0056] The image captured by the auxiliary lens is also displayed on the display of the display module. In one embodiment, the display interface of the display is divided into at least two parts, one part is used to display the image of the auxiliary lens, and the other part is used to display the image captured by the camera and / or the processed image.

[0057] like Figure 5 As shown, the light source system also includes a control circuit and a filter. The control circuit is used to control the brightness and operating frequency of the light source body to meet different medical needs; the filter is used to filter the preset wavelength in the light emitted by the light source body to obtain light of a preset spectrum, thereby improving the quality of the image acquired by the camera.

[0058] A collecting lens and an aperture are arranged between the light source body and the optical fiber bundle; the light emitted by the light source body passes through the collecting lens and the aperture and then enters from the incident end of the optical fiber bundle, and a diffusion lens is arranged at the output end of the optical fiber bundle, and the diffusion lens is used to diffuse the optical fibers of the optical fiber bundle to the surface of the photographed object.

[0059] The light source system further includes a vibration mechanism disposed on the optical fiber bundle, and the vibration mechanism is used to make the light propagation path in the optical fiber bundle vibrate rather than remain in a static state. The purpose of introducing vibration into the optical fiber bundle is to change the geometric shape of the light propagation path in the optical fiber bundle. If the change in the geometric shape of the light propagation path is changed at a sufficiently fast frequency, the speckle pattern on the imaging image observable by the human eye can be substantially eliminated or removed.

[0060] The vibration mechanism includes a connecting shell and an oscillator; the connecting shell is provided with a first cavity and a second wall separated from each other, the oscillator is fixed in the first cavity, and the second cavity is used to couple two segmented optical fiber bundles, that is, the two segmented optical fiber bundles are coupled through the second cavity of the connecting shell to form a long optical fiber bundle;

[0061] The light source system further comprises a vibration absorber, the vibration mechanism is arranged on the vibration absorber, and the vibration absorber is used to reduce the vibration noise of the vibration mechanism and / or prevent the vibration of the vibration mechanism from affecting the operation of the laparoscope body.

[0062] Embodiment 3: This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the above technical features and is further described in detail:

[0063] A method for using a laparoscope for gastrointestinal surgery comprises the following steps:

[0064] S1. Hold the proximal end of the handle and extend the distal end of the handle and the camera into the patient's gastrointestinal tract.

[0065] S2, operate the camera through the operating rod near the near end of the handle,

[0066] S21, the camera follows the bendable end to perform a bending motion;

[0067] Specifically, the image obtained by the camera is observed through the display, and the bending direction and bending angle of the lens are determined according to the image obtained by the camera. At the same time, the position of the signal light on the bendable end obtained by the auxiliary lens is observed through the display, and the color of the corresponding signal light is determined according to the bending direction. The medical operator presses a button of a corresponding color and a corresponding bending level through an operating lever; the bendable end is bent in a corresponding direction and a corresponding bending level; the medical operator can continue to adjust the bending direction and / or bending degree as needed;

[0068] S22, the camera performs a rotational motion through a rotation connection mechanism;

[0069] Specifically, the image captured by the camera is observed through the display, and the medical operator holds the operating lever and rotates the rotating operating handle with the thumb, and continuously observes the image of the camera until the camera is aimed at the desired part of the patient's gastrointestinal tract;

[0070] S3, pressing the camera button on the operating lever to obtain an image of the corresponding part;

[0071] S4, processing the image acquired by the camera through the image processing system; performing corresponding processing operations on the image through the input unit;

[0072] In summary, a laparoscope for gastrointestinal surgery of the present invention has a flexible end portion at the distal end of the handle to realize the deflection control of the camera, thereby better adapting to the needs of surgical operations and facilitating medical staff to better diagnose the condition; by arranging ion-based electrodes circumferentially on the flexible end portion, charge control is performed by selecting one or more corresponding ion-based electrodes therein, thereby realizing control of the bending direction; by controlling the voltage and frequency of the ion-based electrodes, the bending angle of the flexible end portion is accurately controlled; by setting a rotating connection mechanism to control the rotation of the lens, the position of the lens is adjusted in a small range, thereby facilitating medical staff to fine-tune the observation angle of the patient's site; at the same time, the flexible end portion and the rotating connection mechanism cooperate to enable the camera to photograph the patient's site from different angles of the patient's site. By setting an operating lever and a control switch button on the operating lever, medical operators can easily and quickly adjust the position of the camera to obtain the required pictures; the light source system provides light to the camera and can adjust the light to improve the quality of the image obtained by the camera; the light source system is provided with a vibration mechanism to eliminate the speckle pattern on the image, improve the imaging accuracy of the image, and avoid misdiagnosis by doctors; the image processing system processes the image obtained by the camera by setting an image acquisition module, a signal conversion module, an image processing module and a display module, so that medical personnel can better observe the details of the patient's body.

[0073] Although the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems and devices discussed above are examples. Various configurations may appropriately omit, replace or add various processes or components. For example, in alternative configurations, the method may be performed in an order different from that described, and / or various components may be added, omitted and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configuration may be combined in a similar manner. In addition, as technology develops, the elements therein may be updated, i.e., many elements are examples and do not limit the scope of the present disclosure or claims. And it should be understood that after reading the contents of the record of the present invention, the technician may make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A laparoscope for gastrointestinal surgery, characterized in that: It includes a laparoscope body, a light source system and an image processing system; the laparoscope body includes a handle, a camera and a bending control mechanism, and the camera is arranged at the distal end of the handle; The bending control mechanism is used to control the deflection direction and deflection angle of the camera; the bending control mechanism includes a bendable end and a bending control unit; The bendable end is arranged at the distal end of the mirror handle, the bendable end is connected to the camera, and the bending control unit is used to control the bending direction and bending angle of the bendable end; The light source system is used to provide light source for the camera; The image processing system is used to process and display the images collected by the camera.

2. A laparoscope for gastrointestinal surgery according to claim 1, characterized in that: The bendable end is a cylindrical structure. The bending control unit includes a controller and a plurality of ion-based electrodes. The controller is connected to a power supply. The plurality of ion-based electrodes are circumferentially arranged around the bendable end. The controller is used to control the operating voltage and frequency of each ion-based electrode.

3. A laparoscope for gastrointestinal surgery according to claim 2, characterized in that: The laparoscope body also includes a rotation connection mechanism, and the rotation connection mechanism is used to control the rotation of the camera head.

4. A laparoscope for gastrointestinal surgery as claimed in claim 3, characterized in that: The light source system includes a light source body and an optical fiber bundle, and the light source body transmits light to the camera through the optical fiber bundle.

5. A laparoscope for gastrointestinal surgery according to claim 4, characterized in that: The image processing system includes an image acquisition module, a signal conversion module, an image processing module and a display module; the image acquisition module is connected to the camera and converts the image captured by the camera into a digital signal; the signal conversion module converts the digital signal into an analog signal; the image processing module processes the analog signal to form a processed image, and the processed image is displayed through the display module.

6. A laparoscope for gastrointestinal surgery according to claim 5, characterized in that: The laparoscope body also includes an operating rod, the proximal end of the scope handle is connected to the operating rod, and the operating rod is used to control the movement and operation of the camera; the operating rod is provided with a control switch button for controlling the movement of the camera.

Images