Endoscope head device, endoscope and surgical system

Abstract

The present application provides an endoscope tip device, endoscope, and surgical system. The tip device includes a lens mechanism, wherein the lens mechanism includes a lens window and a lens body; an airflow layer generating mechanism is provided on the periphery of the lens mechanism; the airflow layer generating mechanism is configured to eject gas to form a lens airflow curtain and an external airflow curtain. The lens airflow curtain is formed by the gas ejected by the airflow layer generating mechanism flowing in a plane parallel to the lens window surface; the external airflow curtain is formed by the gas ejected by the airflow layer generating mechanism flowing toward a space away from the lens window after leaving the lens airflow curtain. The lens airflow curtain formed by the airflow layer generating mechanism has the function of removing water mist and dirt from the lens window surface, while the external airflow curtain formed has the function of actively preventing impurities, oil mist, and other dirt that have not yet reached the lens window surface. The tip device of the endoscope can provide a clear lens field of view and improve surgical efficiency.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to an endoscope head device, an endoscope, and a surgical system. Background Art

[0002] Minimally invasive surgery is a very common and effective surgical method. Through minimally invasive incisions or natural body cavities, an endoscope can enter the body and provide real-time images. It is used in conjunction with other minimally invasive instruments and cannulas to complete the procedure. A common problem during surgery is fogging and contamination of the endoscope lens. This can blur the image captured by the endoscope and even cause loss of vision, seriously impacting the surgeon's surgical process and safety.

[0003] Among them, the reason for fogging is generally the temperature difference between the outside world and the human body, which causes condensation and fogging on the lens surface; the reason for dirt is generally that burning surgical instruments will produce smoke, oil mist, or even some internal tissue debris splashing onto the lens surface.

[0004] Existing technology uses a nozzle at the end of an endoscope to blow air toward the lens surface, creating a vortex on the lens surface in conjunction with a diverter. However, the vortex formed by this technology is a single airflow layer, which is only effective for fogging the lens and provides poor protection against impurities such as oil mist and tissue debris. Furthermore, a central channel in the vortex attracts more impurities and oil mist, obstructing the lens' field of view and affecting the surgical process. Summary of the Invention

[0005] In order to solve the problem that the current endoscope head device cannot effectively protect against dirt such as oil mist and impurities, which obstructs the lens field of view and affects the surgical process, the present application provides an endoscope head device, endoscope and surgical system through the following aspects.

[0006] The first aspect of the present application provides a head end device of an endoscope, including a lens mechanism, which includes a lens window and a lens body, and an air flow layer generating mechanism is provided on the periphery of the lens mechanism; the air flow layer generating mechanism is used to eject gas to form a lens air flow curtain and an external air flow curtain, the lens air flow curtain is an air flow curtain formed by the gas ejected by the air flow layer generating mechanism flowing in a plane parallel to the surface of the lens window; the external air flow curtain is an air flow curtain formed by the gas ejected by the air flow layer generating mechanism after leaving the lens air flow curtain and flowing to a space away from the lens window.

[0007] In some embodiments, the air flow layer generating mechanism includes at least one radial air outlet portion and at least one oblique air outlet portion, the radial air outlet portion is used to discharge air radially along the lens window, and the oblique air outlet portion is used to discharge air non-radially along the lens window.

[0008] In some embodiments, the air flow layer generating mechanism includes at least two radial air outlets, one oblique air outlet and an air flow deflector; the oblique air outlet is used to eject the air flow to form a vortex away from the lens window under the action of the air flow deflector; at least two radial air outlets are used to eject the air flow to form an air flow column in a direction away from the lens window.

[0009] In some embodiments, the air flow layer generating mechanism includes at least two radial air outlets and at least two oblique air outlets; the air outlet direction of the radial air outlet is parallel to the lens window; the air outlet direction of the oblique air outlet forms an acute angle with the lens window; at least two oblique air outlets are used to eject airflow to form a vortex; at least two radial air outlets are used to eject airflow to form an airflow column in a direction away from the lens window.

[0010] In some embodiments, the air flow layer generating mechanism includes at least one radial air outlet and at least two oblique air outlets; the air outlet direction of the radial air outlet forms an acute angle with the surface of the lens window; the air outlet direction of the oblique air outlet is parallel to the surface of the lens window; at least one radial air outlet is used to eject air flow to form an air flow column away from the lens window; at least two oblique air outlets are used to eject air flow to form a vortex.

[0011] In some embodiments, the air flow layer generating mechanism includes at least two radial air outlet portions and an air flow deflector; the radial air outlet portions are used to discharge air radially along the lens window; the air outlet direction of one radial air outlet portion is parallel to the surface of the lens window, and is used to eject gas and form a vortex through the action of the air flow deflector; the air outlet direction of at least one radial air outlet portion forms an acute angle with the surface of the lens window, and is used to eject gas to form an air flow column away from the lens window.

[0012] In some embodiments, the radial air outlet portion includes a radial nozzle and a radial air outlet channel; the oblique air outlet portion includes an oblique nozzle and an oblique air outlet channel; the radial air outlet channel gradually becomes smaller towards the radial nozzle, and the oblique air outlet channel gradually becomes smaller towards the oblique nozzle.

[0013] In some embodiments, a ventilation sleeve is also included; a through hole is provided in the ventilation sleeve for placing the lens mechanism; the tube wall of the ventilation sleeve is constructed to accommodate the airflow layer generating mechanism; an airway is provided on the tube wall of the ventilation sleeve corresponding to the airflow layer generating mechanism; one end of the airway is connected to the airflow layer generating mechanism, and the other end is connected to the gas generating mechanism.

[0014] A second aspect of the present application provides an endoscope, comprising the head end device of the endoscope provided in the first aspect of the present application.

[0015] The third aspect of the present application provides a surgical system, including the endoscope, airflow control module, and surgical instrument operation module provided in the second aspect of the present application; wherein the surgical instrument operation module is used to obtain an operation signal and send the operation signal to the airflow control module, and the operation signal is used to operate the surgical instrument to perform surgical actions; the airflow control module is used to control the airflow layer generating mechanism according to the operation signal.

[0016] The present application provides an endoscope tip device, endoscope, and surgical system. The tip device includes a lens mechanism, wherein the lens mechanism includes a lens window and a lens body; an airflow layer generating mechanism is provided on the periphery of the lens mechanism; the airflow layer generating mechanism is configured to eject gas to form a lens airflow curtain and an external airflow curtain. The lens airflow curtain is formed by the gas ejected by the airflow layer generating mechanism flowing in a plane parallel to the lens window surface; the external airflow curtain is formed by the gas ejected by the airflow layer generating mechanism flowing toward a space away from the lens window after leaving the lens airflow curtain. The lens airflow curtain formed by the airflow layer generating mechanism has the function of removing water mist and dirt from the lens window surface, and the external airflow curtain formed has the function of actively preventing impurities, oil mist, and other dirt that have not yet reached the lens window surface, thereby providing a clear lens field of view and improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 Schematic diagram of the structure of a head end device of an endoscope is shown in FIG.

[0019] Figure 2 FIG2 exemplarily shows a schematic structural diagram of a head end device of an endoscope from another angle;

[0020] Figure 3 Schematic diagram of an endoscope head end device forming an airflow curtain is shown in FIG.

[0021] Figure 4 Schematic cross-sectional view of a radial air outlet portion is shown as an example;

[0022] Figure 5 Schematic cross-sectional view of a radial air outlet portion is shown as an example;

[0023] Figure 6 exemplarily shows a cross-sectional schematic diagram of a radial air outlet in the form of a straight port;

[0024] Figure 7exemplarily shows a cross-sectional schematic diagram of a radial air outlet in the form of a bundle;

[0025] Figure 8 exemplarily shows a cross-sectional schematic diagram of an oblique air outlet in the form of a bundle;

[0026] Figure 9 Schematic diagram of airflow of a head end device of an endoscope is shown as an example;

[0027] Figure 10 exemplarily shows a schematic top view of the flow direction of the airflow curtain on the lens window surface of the head-end device when three radial air outlet portions are used;

[0028] Figure 11 exemplarily shows a schematic diagram of the flow direction of the airflow curtain on the lens window surface of the head-end device when three oblique air outlets are used;

[0029] Figure 12 exemplarily shows a side view of an airflow curtain formed by an airflow layer generating mechanism with three radial air outlets and three oblique air outlets arranged at intervals;

[0030] Figure 13 The example shown in Figure 12 Schematic diagram of the airflow curtain from another angle;

[0031] Figure 14 Schematic diagram of an airflow curtain formed by an airflow layer generating mechanism using a radial air outlet portion whose air outlet direction is parallel to the lens window surface and a radial air outlet portion whose air outlet direction forms an acute angle with the lens window surface is shown in FIG.

[0032] Figure 15 The example shown in Figure 12 A side view schematic diagram of the overall structure of the corresponding head-end device;

[0033] Figure 16 Schematic diagram and cross-sectional view of the structure of the head end device including three air outlet parts are shown as an example;

[0034] Figure 17 exemplarily shows a structural schematic diagram of the installation mechanism of the head end device including three air outlet parts;

[0035] Figure 18 1 is a schematic diagram showing the structure of a surgical system;

[0036] Among them, in the figure: 1-lens mechanism, 11-lens window, 12-lens body, 121-lens, 13-light outlet, 14-illumination optical fiber, 15-head end core circuit board, 2-air flow layer generating mechanism, 21-radial air outlet part, 211-radial nozzle, 212-radial air outlet channel, 22-oblique air outlet part, 221-oblique nozzle, 222-oblique air outlet channel, 3-ventilation sleeve, 31-air duct, 4-installation mechanism, 41-trachea joint, 42-trachea. DETAILED DESCRIPTION

[0037] In order to make the purpose and implementation of this application clearer, the exemplary implementation of this application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only part of the embodiments of this application, not all of the embodiments.

[0038] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0039] In the specification and claims of this application and the accompanying drawings, the terms "first," "second," "third," etc. are used to distinguish similar or similar objects or entities, and are not necessarily intended to limit a particular order or sequence, unless otherwise noted. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances.

[0040] The terms "comprise," "include," and "have," and any variations thereof, are intended to cover but not exclude inclusion; for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0041] Embodiments of the endoscopic tip device, endoscope, and surgical system disclosed in the present application will now be described in detail with reference to the accompanying drawings, wherein like reference numerals designate like or corresponding elements in each of the several views.

[0042] See also Figure 1 , is a schematic structural diagram of a head end device 1 of an endoscope provided in an embodiment of the present application. Figure 1 As shown, the head end device includes a lens mechanism 1, and the lens mechanism 1 includes a lens window 11 and a lens body 12. The lens window 11 can be made of glass or other materials.

[0043] See also Figure 2 , is a schematic structural diagram of a head end device of an endoscope provided in an embodiment of the present application. Figure 2As can be seen, the lens body 12 of the present application includes two lenses 121. Light outlets 13 are provided on both sides of the lens window 11, and the light outlets 13 are connected to illumination optical fibers 14. The lens mechanism also includes a head-end core circuit board 15 for controlling the imaging field of view of the lens mechanism 1.

[0044] An airflow layer generating mechanism 2 is provided on the periphery of the lens mechanism 1. The airflow layer generating mechanism 2 is used to eject gas to form a lens airflow curtain A and an external airflow curtain B. The lens airflow curtain A is formed by the gas ejected by the airflow layer generating mechanism 2 flowing in a plane parallel to the surface of the lens window 11; the external airflow curtain B is formed by the gas ejected by the airflow layer generating mechanism 2 flowing into a space away from the lens window 11 after leaving the lens airflow curtain A. Figure 3 (Taking the airflow layer generating mechanism 2 including three radial air outlets 21 and three oblique air outlets 22 as an example), this is an axonometric diagram of two airflow curtains formed by the gas ejected from the airflow layer generating mechanism 2. In the art, the airflow curtains may also be referred to as gas cavities.

[0045] The airflow layer generating mechanism 2 includes at least one radial air outlet portion 21 and at least one oblique air outlet portion 22; in the present invention, the radial air outlet portion 21 is used to discharge air radially along the lens window 11, and the oblique air outlet portion 22 is used to discharge air non-radially along the lens window 11; vortices and airflow columns can be formed by controlling the number of radial air outlet portions 21 and oblique air outlet portions 22 and the combination of the air outlet directions relative to the surface of the lens window 11. The vortex and airflow column constitute the lens airflow curtain A and the external airflow curtain B. The airflow column can compensate for the defect of poor protection effect of the vortex center. The lens airflow curtain A has the function of removing water mist and dirt from the surface of the lens window 11, and the external airflow curtain B has the active prevention function of impurities, oil mist and other dirt that have not yet reached the surface of the lens window 11, which can provide a clear lens field of view and improve surgical efficiency.

[0046] In a first possible implementation, the airflow layer generating mechanism 2 includes two or more radial air outlets 21, one oblique air outlet 22, and an airflow deflector. The airflow deflector is disposed on the inner wall of the airflow layer generating mechanism 2. The oblique air outlet 22 is used to eject airflow, which forms a vortex away from the surface of the lens window 11 under the action of the airflow deflector. At least two radial air outlets 21 are used to eject airflow to form an airflow column away from the lens window 11 at the axis of the lens window 11. For example, see Figure 10 , is a schematic diagram of the flow direction of the air curtain on the surface of the lens window 11 when the airflow layer generating mechanism 2 includes three radial air outlets 21, wherein, Figure 10There are three axial airflow columns (not shown) formed by the collision of radial airflows in the middle part of the airflow curtain; it should be noted that, in this possible implementation, the number of radial air outlets 21 can also be 2, 4 or 5, etc.

[0047] Among them, in the second possible implementation, the airflow layer generating mechanism 2 includes two or more radial air outlets 21 and two or more oblique air outlets 22. In this embodiment, the two or more radial air outlets 21 are used to eject airflow at the axis of the lens window 11 to form gas away from the lens window 11; Figure 5 As shown, in this embodiment, the oblique air outlet portions 22 can be designed such that their outlet directions form an acute angle with the surface of the lens window 11, and two or more oblique air outlet portions 22 are used to eject airflow to form vortices. In this embodiment, the oblique air outlet portions 22 are designed to form an acute angle with the surface of the lens window 11. This, on the one hand, allows the oblique air outlet portions 22 to increase the distance over which the vortex is generated, thereby increasing the effectiveness of shielding pollutants. On the other hand, it allows the airflow ejected from the radial air outlet portion 21 and the oblique air outlet portion 22 to have different heights, preventing the airflow ejected from the oblique air outlet portion 22 from affecting the formation of the airflow column from the radial air outlet portion 21.

[0048] For example, see Figure 12 and Figure 13 , is a side view of two air curtains formed by an airflow layer generating mechanism 2 composed of three radial air outlets 21 and three oblique air outlets 22 arranged at intervals. Figure 12 and 13 The airflow (shown by the black arrow in the figure) converges at the center of the lens window 11 surface, and after the airflow collides, it forms an airflow column that shoots out directly. Figure 12 and 13 The radial air outlet 21 forms a lens air curtain A on the lens window 11, while the remaining airflow forms an air column, which then combines with the vortex formed by the oblique air outlet 22 to form an external air curtain B. This air column compensates for the poor protection provided by the vortex center.

[0049] Some possible implementations are similar to the second possible implementation, except that the air outlet direction of the oblique air outlet portions 22 is parallel to the surface of the lens window 11. In these embodiments, the vertical distance L1 between at least two oblique air outlet portions 22 and the lens window 11 is greater than the vertical distance L2 between the radial air outlet portion 21 and the lens window 11. This prevents the airflow ejected from the oblique air outlet portions 22 from affecting the formation of the airflow column from the radial air outlet portion 21.

[0050] Among them, in the third possible implementation, the airflow layer generating mechanism 2 includes at least one radial air outlet portion 21 and at least two oblique air outlet portions 22. Among them, in this embodiment, the radial air outlet portion 21 is designed so that its air outlet direction forms an acute angle with the surface of the lens window 11; at least one radial air outlet portion 21 is used to eject airflow to form an airflow column away from the lens window 11; exemplarily, when the airflow layer generating mechanism 2 includes only one radial air outlet portion 21 whose air outlet direction forms an acute angle with the surface of the lens window 11, an airflow layer that is approximately a straight column can be formed; exemplarily, when the airflow layer generating mechanism 2 includes at least two radial air outlet portions 21 whose air outlet directions form an acute angle with the surface of the lens window 11, an airflow column will be formed above the axis of the lens window 11. The air outlet direction of the oblique air outlet portion 22 is parallel to the surface of the lens window 11; at least two oblique air outlet portions 22 are used to eject airflow to form a vortex. For example, see Figure 11 , is a top view of the airflow curtain on the lens window 11 when three oblique air outlets 23 are used. Figure 11 It can be seen that by adopting three oblique air outlet portions 22 , an airflow curtain in the form of a vortex can be formed on the surface of the lens window 11 .

[0051] In addition to the above embodiments (such as the first, second and third possible implementations), in other embodiments, the airflow generating mechanism 2 can also be designed as follows: Figure 14 As shown, the airflow layer generating mechanism 2 includes at least two radial air outlets 21 and an airflow deflector. One radial air outlet 21 is designed to discharge air in a direction parallel to the surface of the lens window 11, thereby ejecting air and forming a vortex through the action of the airflow deflector. At least one radial air outlet 21 is designed to discharge air in a direction that forms an acute angle with the surface of the lens window 11, thereby ejecting air and forming an airflow column away from the lens window 11.

[0052] For example, see Figure 14 Only one radial air outlet part 21 has an air outlet direction that forms an acute angle with the surface of the lens window 11, forming an approximately straight air flow column. The air outlet direction of one radial air outlet part 21 is parallel to the surface of the lens window 11, and cooperates with the air flow deflector to form a vortex; the lens air flow curtain A and the external air flow curtain B are composed of a vortex and an air flow column.

[0053] See also Figure 4 , is a cross-sectional view of the radial air outlet portion 21 in the above embodiment, where the air outlet direction is parallel to the surface of the lens window 11. Figure 4 As shown, the radial air outlet portion 21 includes a radial nozzle 211 and a radial air outlet channel 212 .

[0054] Figure 4 The radial nozzle 211 shown in (a) is a straight nozzle; see Figure 6 ,for Figure 4The cross-sectional view of the radial air outlet portion 21 shown in (a) is as follows; Figure 6 As shown, the cross-sectional shape of the radial air outlet channel 212 along the axial direction of the endoscope is rectangular.

[0055] Figure 4 The radial nozzle 211 shown in (b) is a bundled nozzle, that is, the radial air outlet channel 212 gradually becomes smaller towards the radial nozzle 211; Figure 7 ,for Figure 4 (b) shows an example of a cross-sectional schematic diagram of the radial outlet portion 21; Figure 7 As shown, the cross-sectional shape of the radial air outlet channel 212 along the axial direction of the endoscope is a trapezoid, wherein the end of the radial air outlet channel 212 close to the radial nozzle 211 is the short side of the trapezoid.

[0056] The radial outlet portion 21 can also be widened, meaning the radial outlet channel 212 gradually widens toward the radial nozzle 211. For example, the radial outlet channel 212, taken along the endoscope's axial direction, has a trapezoidal cross-section, with the end of the radial outlet channel 212 closest to the radial nozzle 211 forming the long side of the trapezoid. Relatively speaking, the radial outlet portion 21 with a narrow opening produces a more concentrated airflow and a relatively faster flow rate.

[0057] Similarly, the oblique air outlet portion 22 includes an oblique nozzle 221 and an oblique air outlet channel 222; the oblique air outlet portion 22 can be in a bundled mouth form, a wide mouth form, or a straight mouth form. Among them, the oblique air outlet portion 22 is in a bundled mouth form, that is, the oblique air outlet channel 222 gradually becomes smaller towards the oblique nozzle 221. For example, see Figure 8 The cross-sectional shape of the oblique air outlet channel 222 along the axial direction of the endoscope is a trapezoid, wherein the end of the oblique air outlet channel 222 close to the oblique nozzle 221 is the short side of the trapezoid.

[0058] See also Figure 5 , is a cross-sectional view of the radial air outlet portion 21 in the above embodiment, in which the air outlet direction forms an acute angle with the surface of the lens window 11.

[0059] See also Figure 9 , is a schematic cross-sectional view of the head-end device with the airflow direction and airflow curtain marked when three radial air outlets 21 are used. Figure 7 It can be seen that except for the direction of straight-line output from the nozzle, there are small airflow vortices in other ranges. Their coverage, distance, strength and level are different, and the prevention effect and the cleaning effect of existing dirt will also change accordingly.

[0060] See also Figure 10 , is a top view of the direction of the airflow curtain on the lens window 11 surface using the oblique air outlet 22 in the form of three bundle openings. Figure 10The middle part of the air curtain forms an axial air column ( Figure 10 not shown).

[0061] See also Figure 11 , is a top view of the airflow curtain on the lens window 11 when three oblique air outlets 22 are used. Figure 10 It can be seen that by adopting three oblique air outlet portions 22 , an airflow curtain in the form of a vortex can be formed on the surface of the lens window 11 .

[0062] The main scientific principle underlying the embodiments of this application is that the multiple airflow layers formed by gas flow act like isolated cavities. According to the Bernoulli equation for fluid (kinetic energy + gravitational potential energy + pressure potential energy = constant), when the flow is at equal height, the greater the flow velocity, the smaller the pressure. Different airflow layers (gas ejected from different outlets, flowing at close distances) are considered to be different airflow layers and do not merge; Figure 12-14 In the figure, two airflow layers are used for illustration: one is a vortex layer and the other is a straight air column layer. Between these layers, a low-pressure layer, similar to a vacuum chamber, forms. Thus, the multiple airflow layers and the low-pressure isolation zones between them form a sandwich-like structure. When smoke, oil mist / oil droplets, water vapor, or tissue debris attempt to reach the endoscope lens window 11, they first enter the continuously flowing airflow layer (external airflow curtain B), where they are blown by the airflow, generating a propulsion force that propels them away from the endoscope lens end. If the impurity has sufficient kinetic energy and passes through the outermost airflow layer, it is hindered by the low-pressure layer and then enters the inner airflow layer (lens airflow curtain A), where it is further blown by the airflow, moving them away from the lens. The turbulent effect of fluids indicates that, given the same total airflow output, the thrust generated by multiple airflow layers is greater than that generated by a single airflow layer. In addition, impurities blown from the inner airflow layer (lens airflow curtain A) back to the outer airflow layer (external airflow curtain B) will change direction more significantly and move further away from the lens when blocked by the low-pressure layer.

[0063] Because the diameter of the endoscope lens tip is generally less than 10mm, its range is very small. Therefore, impurities and dirt, when blown by the airflow layer, can easily deviate from the flight direction and away from the endoscope lens, thus preventing oil mist, impurities, dirt, and water mist. Even if some impurities are very heavy, they will still fall onto the surface of the lens window 11 after passing through the airflow layer. The airflow layer along the surface of the lens window 11 (lens airflow curtain A) will exert a continuous force on the impurities, forcing them to the edge of the lens where they will not affect the optical path imaging and illumination.

[0064] The above embodiment provides a tip end device for an endoscope. The tip end device includes a lens mechanism 1; the lens mechanism 1 includes a lens window 11 and a lens body 12; an airflow layer generating mechanism 2 is provided on the periphery of the lens mechanism 1; the airflow layer generating mechanism 2 is used to eject gas to form a lens airflow curtain A and an external airflow curtain B. The lens airflow curtain A is formed by the gas ejected by the airflow layer generating mechanism 2 flowing in a plane parallel to the surface of the lens window 11; the external airflow curtain B is formed by the gas ejected by the airflow layer generating mechanism 2 flowing into a space away from the lens window 11 after leaving the lens airflow curtain A. The tip end device can effectively remove water mist from the lens window surface 11 and prevent oil mist, impurities, and dirt from splashing from the lens surface.

[0065] See also Figure 16 , is a schematic diagram of the structure of the head end device including three air outlets and a corresponding cross-sectional diagram. In some embodiments, combined with Figure 2 、 9 , 15, and 16, the head-end device also includes a ventilation sleeve 3; the ventilation sleeve 3 is provided with a through hole for placing the lens mechanism 1; the wall of the ventilation sleeve 3 is configured to accommodate the airflow layer generating mechanism 2; an air channel 31 is provided on the wall of the ventilation sleeve 3 corresponding to the airflow layer generating mechanism 2; one end of the air channel 31 is connected to the airflow layer generating mechanism 2, and the other end is connected to the gas generating mechanism (not shown). In this way, the ventilation sleeve 3 integrates the airway that supplies airflow to the airflow layer generating mechanism 2 with the working sleeve of the head-end device of the endoscope.

[0066] In some embodiments, see Figure 1 The head end device further includes a mounting mechanism 4. The mounting mechanism 4 includes an air pipe connector 41 and an air tube 42 correspondingly connected to the air pipe connector 41; the air pipe connector 41 is connected to the airway 31; one end of the air tube 42 is connected to the air pipe connector 41, and the other end is connected to the gas generating mechanism; the mounting mechanism 4 is used to connect the ventilation sleeve 3 and the working sleeve of the endoscope. Figure 17 , is a structural schematic diagram of the installation mechanism 4 of the head end device including three air outlet parts.

[0067] See also Figure 15 ,for Figure 12 The corresponding side view of the overall structure of the head end device with the gas flow direction marked. Figure 15 As shown, the gas flows from the air pipe 42 through the air pipe connector 41 to the corresponding nozzle, and is ejected in different directions and flow rates to form different air flow layers, achieving different coverage effects and ranges of action.

[0068] In the embodiment of the present application, the gas ejected by the airflow layer generating mechanism 2 can be carbon dioxide or dry sterile air. Using carbon dioxide or dry sterile air is cost-effective. Carbon dioxide or dry sterile air is a gas that the human body already accepts, is compatible with the pressure detection function of the pneumoperitoneum device, and does not cause any additional effects on the human body, making it relatively safe.

[0069] An embodiment of the present application also provides an endoscope, which adopts the head end device provided in the above embodiment.

[0070] The present application also provides a surgical system, comprising the endoscope, airflow control module and surgical instrument operation module provided in the above embodiments. Figure 18 The endoscope includes an endoscope head device and an endoscope handle connected to the head device. The surgical instrument operation module is configured to obtain an operation signal and transmit the operation signal to the airflow control module. The operation signal is used to operate the surgical instrument to perform a surgical operation. The airflow control module is configured to control the airflow layer generating mechanism 2 based on the operation signal. The surgical system includes an endoscope light source and an image processing module, which are configured to control the endoscope lens mechanism 1.

[0071] For example, the working process of the surgical system is described in combination with a specific application scenario: when a doctor operates an electric knife, ultrasonic knife, or other device to cut tissue or perform electrocoagulation, a large amount of smoke and tiny oil droplets, oil mist, or tissue debris is expected to be generated. At this time, the operation signal obtained by the corresponding surgical instrument operation module will be synchronized to the airflow control module to increase the airflow output at the end of the endoscope head, or change the flow ratio of different types of nozzles to achieve a specific airflow layer shape and direction, thereby increasing the head end protection. When the doctor performs other operations, it is expected that less smoke, oil mist, etc. will be generated. At this time, the operation signal obtained by the corresponding surgical instrument operation module will also be synchronized to the airflow control module to reduce the airflow or change the airflow pattern to achieve another airflow layer shape and direction. At this time, the head end airflow layer mainly removes water mist, improves heat dissipation and other performance, and realizes continuous blowing and moving operations on impurities that may have adhered to the surface of the objective lens glass.

[0072] The surgical system provided in the above embodiment, wherein the airflow control module is intelligently connected to the smoke, oil mist, and tissue debris generating modules (surgical instrument operation modules) such as the electric knife, ultrasonic knife, and bipolar coagulation, automatically changes the airflow pattern and airflow layer state as smoke and oil mist are generated, and does not require the doctor to manually trigger the flushing operation, thereby simplifying the doctor's operating process, reducing the number of surgical operation interruptions, and improving the doctor's efficiency.

[0073] Since the above embodiments are all described by reference in combination with other embodiments, different embodiments have the same parts, and the same and similar parts between the various embodiments in this specification can be referred to each other. No further detailed explanation is given here.

[0074] The above embodiments of the present application do not constitute a limitation on the protection scope of the present application.

Claims

1. A head end device of an endoscope, comprising a lens mechanism (1), wherein the lens mechanism (1) comprises a lens window (11) and a lens body (12), characterized in that: An airflow layer generating mechanism (2) is provided on the periphery of the lens mechanism (1); The airflow layer generating mechanism (2) is used to eject gas to form a lens airflow curtain and an external airflow curtain, wherein the lens airflow curtain is formed by the gas ejected by the airflow layer generating mechanism (2) flowing in a plane parallel to the surface of the lens window (11); and the external airflow curtain is formed by the gas ejected by the airflow layer generating mechanism (2) flowing into a space away from the lens window (11) after leaving the lens airflow curtain. The airflow layer generating mechanism (2) comprises at least one radial air outlet portion (21) and at least one oblique air outlet portion (22), wherein the radial air outlet portion (21) is used for discharging air in the radial direction of the lens window (11), and the oblique air outlet portion (22) is used for discharging air in the non-radial direction of the lens window (11); The lens airflow curtain and the external airflow curtain include vortices and airflow columns, and the vortices and airflow columns are formed by controlling the number of the radial air outlet portions (21) and the oblique air outlet portions (22) and the air outlet direction relative to the surface of the lens window (11); The airflow column is formed by the collision of airflows ejected from at least two of the radial air outlet portions (21); or, the airflow column is formed by the airflow ejected from at least one of the radial air outlet portions (21) that forms an acute angle with the lens window (11).

2. The headend device according to claim 1, wherein: The airflow layer generating mechanism (2) comprises at least two radial air outlet portions (21), one oblique air outlet portion (22), and an airflow deflector; The oblique air outlet portion (22) is used to eject the airflow to form the vortex away from the lens window (11) under the action of the airflow deflector; At least two of the radial air outlet portions (21) are used to eject airflow in a direction away from the lens window (11) to form the airflow column.

3. The headend device according to claim 1, wherein: The airflow layer generating mechanism (2) comprises at least two radial air outlet portions (21) and at least two oblique air outlet portions (22); The air outlet direction of the radial air outlet portion (21) is parallel to the lens window (11); The air outlet direction of the oblique air outlet portion (22) forms an acute angle with the lens window (11); At least two of the oblique air outlet portions (22) are used to eject airflow to form the vortex; At least two of the radial air outlet portions (21) are used to eject airflow in a direction away from the lens window (11) to form the airflow column.

4. The headend device according to claim 1, wherein: The airflow layer generating mechanism (2) comprises at least one radial air outlet portion (21) and at least two oblique air outlet portions (22); The air outlet direction of the radial air outlet portion (21) forms an acute angle with the surface of the lens window (11); The air outlet direction of the oblique air outlet portion (22) is parallel to the surface of the lens window (11); At least one of the radial air outlet portions (21) is used to eject airflow to form the airflow column away from the lens window (11); At least two of the oblique air outlet portions (22) are used to eject airflow to form the vortex.

5. The headend device according to claim 1, wherein: The airflow layer generating mechanism (2) comprises at least two radial air outlet portions (21) and an airflow deflector; the radial air outlet portions (21) are used to discharge air in the radial direction of the lens window (11); The radial air outlet portion (21) has an air outlet direction parallel to the surface of the lens window (11), and is used to eject gas and form the vortex through the action of the airflow deflector; The outlet direction of at least one of the radial outlet portions (21) forms an acute angle with the surface of the lens window (11), and is used to eject gas to form the airflow column away from the lens window (11).

6. The head-end device according to any one of claims 1 to 5, characterized in that: The radial air outlet portion (21) comprises a radial nozzle (211) and a radial air outlet channel (212); The oblique air outlet portion (22) comprises an oblique nozzle (221) and an oblique air outlet channel (222); The radial air outlet channel (212) gradually becomes smaller in a direction approaching the radial nozzle (211), and the oblique air outlet channel (222) gradually becomes smaller in a direction approaching the oblique nozzle (221).

7. The head-end device according to any one of claims 1 to 5, characterized in that: Also included is a ventilation cannula (3); A through hole for placing the lens mechanism (1) is provided in the ventilation sleeve (3); The tube wall of the ventilation sleeve (3) is configured to accommodate the airflow layer generating mechanism (2); An air channel (31) is provided on the wall of the ventilation sleeve (3) corresponding to the airflow layer generating mechanism (2); One end of the air channel (31) is connected to the air flow layer generating mechanism (2), and the other end is connected to the gas generating mechanism.

8. An endoscope, characterized in that: A tip end device comprising an endoscope as described in any one of claims 1-7.

9. A surgical system, characterized in that: The surgical system comprises the endoscope, airflow control module, and surgical instrument operation module as claimed in claim 8; wherein, The surgical instrument operation module is used to obtain an operation signal and send the operation signal to the airflow control module, wherein the operation signal is used to operate the surgical instrument to perform a surgical action; The airflow control module is used to control the airflow layer generating mechanism (2) according to the operation signal.

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