Insertion portion, endoscope, and method of using endoscope

Abstract

The present invention discloses an insertion part, an endoscope and a method for using the endoscope, and relates to the technical field of medical devices. The insertion part includes: a front-end component and a light-emitting device. By arranging a light-emitting device on the front-end component, wherein the light-emitting device includes a first light-emitting unit and a second light-emitting unit, the first light-emitting unit is used to emit collimated light parallel to the instrument channel of the front-end component to the distal side of the front-end component and form a first light spot on the target object, and the second light-emitting unit is used to emit non-collimated light to the distal side of the front-end component and form a second light spot on the target object. When the front-end component is at a standard distance from the target object, the first light spot and the second light spot are tangent to define a target area on the target object, which can be used to accurately locate the lesion. In addition, the operator can also determine the relative position relationship between the insertion part and the target object based on the cooperation of the first light spot and the second light spot, which can facilitate the operator to perform surgery quickly and accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an insertion portion, an endoscope, and a method for using the endoscope. Background Art

[0002] Endoscope is a commonly used medical device. It is an inspection instrument that can directly enter the natural channels of the human body and provide the operator with sufficient diagnostic information to treat diseases.

[0003] When an endoscope is used to operate on a lesion, the lesion must be accurately located first, so that the surgeon can perform the operation accurately and minimize the damage to the patient's body. However, although the current endoscopes have a lighting system, it is still difficult to accurately determine the relative position between the insertion part and the lesion based on the images transmitted back from the lighting system combined with the surgeon's clinical experience and operating skills.

[0004] Therefore, providing an endoscope that can assist the operator in determining the relative positional relationship between the insertion portion and the lesion is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The invention discloses an insertion part, an endoscope and a method for using the endoscope, so as to solve the technical problem in the prior art that the endoscope is difficult to assist the operator in determining the relative position relationship between the insertion part and the lesion.

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

[0007] On the one hand, an embodiment of the present application provides an insertion portion for an endoscope, the insertion portion comprising: a front end assembly and a light emitting device. The front end assembly is provided with an instrument channel for guiding the instrument to its distal side to reach the target object. The light emitting device is provided at the front end assembly, and the light emitting device comprises a first light emitting unit and a second light emitting unit arranged at the periphery of the instrument channel, the first light emitting unit being used to emit collimated light parallel to the axis of the instrument channel to the distal side of the front end assembly, and the second light emitting unit being used to emit non-collimated light to the distal side of the front end assembly. When the front end assembly is at a standard distance from the target object, the second light spot formed by the second light emitting unit on the target object is tangent to or partially overlaps with the first light spot formed by the first light emitting unit on the target object.

[0008] In one embodiment, when the distance between the insertion portion and the target object is a standard distance, the size of the first light spot is smaller than the size of the second light spot.

[0009] In one embodiment, the first light spots include at least two, and the light emitting direction of the first light emitting unit is arranged parallel to the light emitting direction of the second light emitting unit;

[0010] When the distance between the insertion portion and the target object is a standard distance, one of the first light spots partially covers the second light spot, and another of the first light spots partially covers the second light spot.

[0011] In one embodiment, the light emitting direction of the first light emitting unit is arranged to intersect with the light emitting direction of the second light emitting unit;

[0012] When the distance between the insertion portion and the target object is a standard distance, a portion of the first light spot covers the second light spot.

[0013] In one embodiment, the second light emitting unit and the first light emitting unit are arranged opposite to each other in a radial direction with respect to the instrument channel.

[0014] In one embodiment, the first light spot is one of a circular light spot, an annular light spot, a triangular light spot or a square light spot;

[0015] And / or, the second light spot is one of a circular light spot, an annular light spot or a strip light spot.

[0016] In one embodiment, the first light emitting unit and / or the second light emitting unit is an optical fiber;

[0017] And / or, the first light emitting unit and / or the second light emitting unit are integrated into the front end component, and are linearly arranged along the axial direction of the front end component or spirally arranged along the axial direction of the front end component.

[0018] In one embodiment, the brightness of the first light spot is different from that of the second light spot;

[0019] And / or, the first light spot and the second light spot have different colors.

[0020] On the other hand, an embodiment of the present application further provides an endoscope, comprising a handle portion and the above-mentioned insertion portion, wherein the insertion portion is connected to the handle portion.

[0021] On the other hand, the embodiment of the present application further provides a method for using an endoscope, wherein the endoscope is used to connect to a terminal device and transmit images to the terminal device, wherein the endoscope comprises: a handle portion and an insertion portion, wherein the insertion portion is connected to the handle portion, and the insertion portion comprises:

[0022] A front end component, wherein the front end component is provided with an instrument channel, and the instrument channel is used to pass the detection equipment;

[0023] a first light emitting unit, the first light emitting unit being used to emit collimated light and form a first light spot on a target object; and

[0024] a second light emitting unit, the second light emitting unit being used to emit non-collimated light and form a second light spot on the target object, the first light spot cooperates with the second light spot to define a target area on the target object and to define a distance between the insertion portion and the target object;

[0025] The terminal device displays a first mark circle and a second mark circle, and is used to display the relative positions of the first light spot, the second light spot and the target object;

[0026] The method comprises:

[0027] Moving the inserting portion so that the target object is located within the first marking circle;

[0028] Turning on the first light emitting unit to form the first light spot on the target object;

[0029] Turning on the second light emitting unit to form the second light spot on the target object;

[0030] Moving the inserting portion so that the second light spot overlaps with the first light spot in at least a portion of its area;

[0031] Determine whether the target object is located within the second marking circle.

[0032] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0033] The insertion part provided in the embodiment of the present application is provided with a light emitting device on the front-end component, wherein the light emitting device includes a first light emitting unit and a second light emitting unit, the first light emitting unit is used to emit collimated light parallel to the instrument channel of the front-end component to the distal side of the front-end component and form a first light spot on the target object, and the second light emitting unit is used to emit non-collimated light to the distal side of the front-end component and form a second light spot on the target object. When the surgeon uses the endoscope to perform surgery on the patient, the first light spot and the second light spot can be used to cooperate with each other. Specifically, when the front-end component is at a standard distance from the target object, the first light spot and the second light spot are tangent or partially overlapped to define a target area on the target object, which can be used to accurately locate the lesion. In addition, the surgeon can also determine the relative position relationship between the insertion part and the target object according to the cooperation of the first light spot and the second light spot, which can facilitate the surgeon to perform surgery quickly and accurately. The insertion part provided in the embodiment of the present application solves the problem that although the endoscope in the prior art is equipped with a lighting system, it is difficult to accurately determine the relative position relationship between the insertion part and the lesion only by combining the picture transmitted back from the lighting system with the surgeon's clinical experience. Applying the above-mentioned insertion part to an endoscope can also solve the above-mentioned problem. The embodiment of the present application also provides a method for using an endoscope, the endoscope includes the above-mentioned insertion part, by moving the insertion part so that the target object in the screen transmitted by the endoscope to the terminal device is located within the first mark circle, then the first light-emitting unit and the second light-emitting unit are turned on, and the first light spot and the second light spot are formed on the target object, and then the insertion part is moved so that the first light spot and / or the second light spot circle the target object to define the target area on the target object, and the second light spot is overlapped with at least part of the first light spot to determine the distance between the target area and the insertion part, and finally determine whether the target object is located in the second mark circle in the screen of the terminal device to determine the specific size of the target object. The method for using the endoscope provided in the embodiment of the present application can assist the operator to quickly and conveniently locate the distance between the lesion and the insertion part, and can assist the operator to quickly and conveniently determine the relative size of the lesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic structural diagram of an endoscope in one embodiment of the present application is shown.

[0036] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0037] Figure 3 A schematic structural diagram of an insertion portion in an embodiment of the present application is shown.

[0038] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0039] Figure 5 A schematic diagram of a coordination manner of the first light spot and the second light spot in an embodiment of the present application is shown.

[0040] Figure 6 for Figure 5 Enlarged view of the first and second light spots.

[0041] Figure 7 A schematic diagram showing another coordination manner of the first light spot and the second light spot in an embodiment of the present application is shown.

[0042] Figure 8 for Figure 7 Enlarged view of the first and second light spots.

[0043] Fig. 9 A schematic diagram of a display screen on a terminal device is shown.

[0044] Fig.10 A diagram showing a usage scenario of an endoscope in one embodiment of the present application is shown.

[0045] Fig.11 A flow chart showing a method for using an endoscope in one embodiment of the present application is shown.

[0046] In the figure: 1-endoscope, 10-handle part, 110-instrument mouth, 20-insertion part, 210-front end assembly, 211-instrument channel, 220-light emitting device, 221-first light emitting unit, 221a-first light spot, 221b-first light exit path, 221c-first axis, 222-second light emitting unit, 222a-second light spot, 222b-second light exit path, 222c-second axis, 230-illumination device, 2-target object, 3-terminal device, 4-first marking circle, 5-second marking circle;

[0047] L - standard distance. DETAILED DESCRIPTION

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0050] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0051] The inventive concept of the present application is described here:

[0052] Endoscope is a commonly used medical device. It is an inspection instrument that can directly enter the natural channels of the human body and provide the operator with sufficient diagnostic information to treat diseases.

[0053] When an endoscope is needed to operate on a lesion, the lesion must be accurately located first, so that the surgeon can perform the operation accurately and minimize the damage to the patient's body. However, although the current endoscope has a lighting system, it is difficult to accurately locate the lesion based on the images transmitted back from the lighting system combined with the surgeon's clinical experience. The surgeon can only operate on the patient's lesion based on his or her own clinical experience. This process may require multiple operations to accurately act on the patient's lesion, which not only increases the surgeon's operation time, but also increases the degree of damage to the patient's body.

[0054] Therefore, providing an endoscope that can assist the operator in locating the lesion so that the operator can perform the operation quickly and accurately is a technical problem that needs to be solved urgently by those skilled in the art.

[0055] Based on this, the inventor provides an insertion portion, an endoscope and a method for using an endoscope, wherein the insertion portion uses laser positioning to assist the operator in quickly and accurately locating the lesion and determining the distance between the insertion portion and the lesion, thereby allowing the operator to quickly and accurately perform surgery on the lesion, reducing the number of operations performed by the operator and reducing damage to the patient's body.

[0056] The following is combined with Figures 1 to 11 , an insertion portion 20, an endoscope 1 and a method for using the endoscope 1 provided in the present application are described in detail through specific embodiments and their application scenarios.

[0057] See also Figure 1 An embodiment of the present application provides an endoscope 1, which can be used to assist the operator to quickly and accurately locate the lesion, thereby enabling the operator to perform surgery quickly and accurately.

[0058] Please also see Figure 1 and Figure 2 In this embodiment, the endoscope 1 may include a handle portion 10 and an insertion portion 20. The insertion portion 20 may be connected to the handle portion 10, and the handle portion 10 may be used for the operator to hold and operate the insertion portion 20 to rotate. The handle portion 10 may be provided with an instrument mouth 110, and the instrument mouth 110 may be used for the operator to insert the detection device into the insertion portion 20 and extend it from the distal end of the insertion portion 20. The insertion portion 20 may be used to extend into the patient's natural canal and perform inspection or surgery on lesions in the patient's natural canal. The embodiment of the present application does not limit the specific connection method between the handle portion 10 and the insertion portion 20, for example, it may be a threaded connection, an integral molding, etc., and it may be specifically set according to actual conditions.

[0059] Please also see Figure 3 and Figure 4 The inserting portion 20 may include: a front end assembly 210, an illuminating device 230 and a light emitting device 220. The illuminating device 230 and the light emitting device 220 may be disposed on the front end assembly 210.

[0060] Specifically, the front-end component 210 may be provided with an instrument channel 211, and the instrument channel 211 may be used to pass through detection equipment, such as a guidewire catheter, a tool pliers, etc. The embodiment of the present application does not limit the specific structure of the front-end component 210. For example, in this embodiment, the front-end component 210 may be provided as a cylindrical structure, and the instrument channel 211 may be provided inside the front-end component 210. In some other embodiments, the front-end component 210 may also be provided as other structures such as a cone structure, an ellipsoid structure, etc., which may be provided specifically according to actual conditions.

[0061] The lighting device 230 can be arranged on the surface of the front-end component 210, and is used to emit light to illuminate the environment in the natural duct of the human body. It is also used to collect images of the environment in the natural duct of the human body and transmit them to the terminal device, so as to facilitate the operator to control the movement of the insertion part 20 in the patient's body. The embodiment of the present application does not limit the specific location of the lighting device 230. For example, it can be arranged inside the front-end component 210. The light-emitting portion of the lighting device 230 can be located on the distal surface of the front-end component 210. In this way, the front-end component 210 can be used to protect the lighting device 230 to prevent the lighting device 230 from being corroded by the secretions in the human body and causing damage. At the same time, the direction of travel of the insertion part 20 in the human body can be the same as the light-emitting direction of the lighting device 230, so as to facilitate the operator to control the movement of the insertion part 20. The embodiment of the present application does not limit the specific structure of the lighting device 230. For example, light-emitting diodes, fluorescent lamps, etc. can be used, and can be specifically set according to actual conditions.

[0062] The light emitting direction of the light emitting device 220 can be set to be the same as the axial direction of the instrument channel 211. It should be noted that the same direction here means the same direction. For example, see Figure 4 As shown, the light emitting direction of the light emitting device 220 and the axial direction of the instrument channel 211 are both rightward. The light emitting device 220 can be used to emit light to the target object 2 and form a light spot on the target object 2. The light spot can be used to assist in positioning the target object 2 and further locate the target area on the target object 2.

[0063] The embodiment of the present application does not limit the specific location of the light emitting device 220. For example, in one embodiment, the light emitting device 220 can be embedded in the front end component 210. Similarly, the light emitting device 220 can also be integrated in the front end component 210 and the front end component 210 can be used as a protective structure to avoid or reduce the possibility of damage to the light emitting device 220. In addition, the light emitting portion of the light emitting device 220 can be arranged on the periphery of the instrument channel 211 and evenly distributed, so that the space of the distal end surface of the insertion portion 20 can be fully utilized.

[0064] Specifically, the light emitting device 220 may include a first light emitting unit 221 and a second light emitting unit 222. The first light emitting unit 221 may be used to emit collimated light parallel to the axis of the instrument channel 211 to the distal side of the front end assembly 210, and form a first light spot 221a on the target object 2. The second light emitting unit 222 may be used to emit non-collimated light to the distal side of the front end assembly 210, and form a second light spot 222a on the target object 2. The first light spot 221a and the second light spot 222a may cooperate with each other to define a target area on the target object 2, and may define the distance between the insertion portion 20 and the target object 2.

[0065] The embodiment of the present application does not limit the specific shapes of the first light spot 221a and the second light spot 222a. For example, the first light spot 221a can be a circular light spot, an annular light spot, a triangular light spot, a square light spot or a strip light spot. It should be noted that the first light spot 221a can also be a light spot of other shapes, which can be set according to the operator's preference. The specific shape of the second light spot 222a is similar, and will not be described here.

[0066] It is understandable that, since the first light emitting unit 221 emits collimated light, the size of the first light spot 221a will not change with the change of the distance between the front-end component 210 and the target object 2. Since the second light emitting unit 222 emits non-collimated light, the size of the second light spot 222a will decrease as the front-end component 210 and the target object 2 get closer, and vice versa. Therefore, the operator can locate the specific position of the lesion by moving the insertion part 20, and then determine the distance between the insertion part 20 and the lesion by continuing to move the insertion part 20, which can assist the operator in determining the relative position relationship between the insertion part 20 and the lesion. That is to say, in this embodiment, the first light emitting unit 221 mainly plays the role of locating the lesion, and the second light emitting unit 222 and the first light emitting unit 221 can cooperate to measure the distance between the insertion part 20 and the lesion.

[0067] The embodiment of the present application does not limit the specific method for determining the relative position relationship between the insertion portion 20 and the lesion, that is, the embodiment of the present application does not limit the specific matching method of the first light spot 221a and the second light spot 222a, which can be determined according to the arrangement method and the number of the first light emitting unit 221 and the second light emitting unit 222. When the front end assembly 210 is at a standard distance from the target object 2, the second light spot 222a formed by the second light emitting unit 222 on the target object 2 is tangent to or partially overlaps with the first light spot 221a formed by the first light emitting unit 221 on the target object 2.

[0068] Please also see Figure 5 and Figure 6In a specific embodiment, the first light spot 221a includes at least two. For the convenience of explanation, the following description is made by taking the first light spot 221a as two as an example, and the first light spot 221a is preferably a circular light spot. In this embodiment, the second light spot 222a includes one, and the second light spot 222a is preferably a strip light spot. In addition, the light emitting direction of the first light emitting unit 221 is parallel to the light emitting direction of the second light emitting unit 222. Since the size of the first light spot 221a does not change, the size of the second light spot 222a will change accordingly during the process of moving the position of the insertion part 20. When the distance between the insertion part 20 and the target object 2 is the standard distance, one end of the second light spot 222a partially covers one of the first light spots 221a, and the other end of the second light spot 222a partially covers another first light spot 221a. It should be noted that the aforementioned standard distance refers to the distance that is most convenient for the operator to perform surgery. The distance can be set according to different operators, different lesions, different surgical instruments, etc., and this application does not make specific numerical restrictions.

[0069] Please also see Figure 7 and Figure 8 In another specific embodiment, the first light spot 221a includes one, and the second light spot 222a also includes one. The first light spot 221a is preferably a circular light spot, and the second light spot 222a is preferably an annular light spot. In addition, the light emitting direction of the first light emitting unit 221 (i.e., the first axis 221c) and the light emitting direction of the second light emitting unit 222 (i.e., the second axis 222c) are arranged to intersect, and specific reference can be made to the first light emitting path 221b and the second light emitting path 222b. The embodiment of the present application does not limit the aforementioned intersection angle. For ease of observation, the aforementioned intersection angle can be set to between 45°-80°, for example, 45°, 60° or 80°, etc., and can be set specifically according to actual conditions. Similarly, since the size of the first light spot 221a will not change, the size of the second light spot 222a will change accordingly during the process of moving the position of the insertion portion 20. When the distance between the insertion portion 20 and the target object 2 is the standard distance, the second light spot 222a partially covers the first light spot 221a. It should be noted that since the space inside the natural channels of the human body is relatively small, if the light emission directions of the first light emitting unit 221 and the second light emitting unit 222 are set to be parallel, it is difficult to have enough space for the operator to move the insertion part 20 to partially cover the first light spot 221a and the second light spot 222a.

[0070] It is understandable that specific methods for determining the relative position relationship between the insertion portion 20 and the lesion include but are not limited to the above two methods, which are not enumerated in the embodiments of the present application.

[0071] In addition, in one embodiment, the brightness of the first light spot 221a and the second light spot 222a can be set differently. For example, the brightness of the first light spot 221a can be set to be smaller than the brightness of the second light spot 222a. This can facilitate the operator to more intuitively judge the relative position of the first light spot 221a and the second light spot 222a, and further assist the operator in judging the distance between the insertion part 20 and the target object 2.

[0072] In another embodiment, the colors of the first light spot 221a and the second light spot 222a can also be set to be different, for example, the first light spot 221a can be set to red, and the second light spot 222a can be set to blue, these two colors are more eye-catching, and can also help the operator to judge the distance between the insertion part 20 and the target object 2. It should be noted that the embodiment of the present application does not limit the specific colors of the first light spot 221a and the second light spot 222a, and can be set according to actual conditions.

[0073] In one embodiment, when the distance between the insertion portion 20 and the target object 2 is a standard distance, the size of the first light spot 221a can be smaller than the size of the second light spot 222a. As mentioned above, since the main function of the first light spot 221a is positioning, a large size of the first light spot 221a will interfere with the operator's judgment.

[0074] In addition, the embodiments of the present application do not limit the specific structure and form of the first light-emitting unit 221 and the second light-emitting unit 222. For example, in the present embodiment, the first light-emitting unit 221 and / or the second light-emitting unit 222 can be optical fibers. Since the core diameter of the optical fiber is generally 9 μm-10 μm, the overall volume of the first light-emitting unit 221 and / or the second light-emitting unit 222 can be made smaller, which is beneficial to reduce the size of the entire insertion portion 20, so as to facilitate the operator to operate the insertion portion 20 to move in the patient's body.

[0075] Furthermore, in a more specific embodiment, the first light emitting unit 221 and / or the second light emitting unit 222 can be configured as a holmium laser fiber. Since the holmium laser has strong energy, the holmium laser can be used for lithotripsy. Specifically, when the operator controls the insertion part 20 to move in the patient's natural canal and finds stones, the holmium laser can be directly used for lithotripsy, which improves the convenience of the operator's operation.

[0076] The embodiment of the present application also does not limit the connection method between the first light-emitting unit 221 and / or the second light-emitting unit 222 and the front-end component 210. For example, in one embodiment, the first light-emitting unit 221 and / or the second light-emitting unit 222 can be directly set on the surface of the front-end component 210. For example, in another embodiment, the first light-emitting unit 221 and / or the second light-emitting unit 222 can be set to a long strip structure (similar to a linear structure), and the first light-emitting unit 221 and / or the second light-emitting unit 222 can be integrated into the front-end component 210. It can be understood that an optical fiber usually has a core, a cladding wrapped outside the core, and a buffer layer wrapped outside the cladding. In this embodiment, the front-end component 210 can be used as a buffer layer, which can not only reduce the volume of the entire insertion part 20, but also reduce the cost.

[0077] Further, in one embodiment, the first light emitting unit 221 and / or the second light emitting unit 222 may be linearly arranged along the axial direction of the front end assembly 210, so that the length of the first light emitting unit 221 and / or the second light emitting unit 222 may be reduced, thereby helping to reduce the cost of the insertion portion 20. In another embodiment, the first light emitting unit 221 and / or the second light emitting unit 222 may be spirally arranged along the axial direction of the front end assembly 210, that is, in this embodiment, the first light emitting unit 221 and / or the second light emitting unit 222 may be in a braided wire structure, so that the structural strength of the first light emitting unit 221 and / or the second light emitting unit 222 may be improved, and the possibility of damage to the first light emitting unit 221 and / or the second light emitting unit 222 due to twisting may be avoided or reduced.

[0078] In summary, the insertion part 20 provided in the embodiment of the present application is provided with a light emitting device 220 on the front end component 210, and the light emitting direction of the light emitting device 220 is set to be the same as the axial direction of the instrument channel 211 on the front end component 210. Specifically, the light emitting device 220 includes a first light emitting unit 221 and a second light emitting unit 222, the first light emitting unit 221 is used to emit collimated light parallel to the instrument channel 211 to the distal side of the front end component 210 and form a first light spot 221a on the target object 2, and the second light emitting unit 222 is used to emit non-collimated light to the distal side of the front end component and form a second light spot 222a on the target object 2. When the surgeon uses the endoscope 1 to perform surgery on the patient, the first light spot 221a and the second light spot 222a can be used according to the cooperation of the first light spot 221a and the second light spot 222a. Specifically, when the front end component 210 is at a standard distance from the target object 2, the first light spot 221a and the second light spot 222a are tangent or partially overlapped to define a target area on the target object 2, which can be used to accurately locate the lesion. In addition, the surgeon can also determine the relative position relationship between the insertion portion 20 and the target object 2 according to the cooperation of the first light spot 221a and the second light spot 222a, so that the surgeon can perform the operation quickly and accurately. The insertion portion 20 provided in the embodiment of the present application solves the problem that although the endoscope 1 in the prior art has a lighting system, it is difficult to accurately determine the relative position relationship between the insertion portion 20 and the lesion only by the image transmitted back from the lighting system combined with the surgeon's clinical experience.

[0079] Please also see Figure 9-11 , the embodiment of the present application also provides a method for using an endoscope 1, wherein the endoscope 1 is the endoscope 1 mentioned above, and the endoscope 1 can also be used to connect to a terminal device 3 and transmit the image to the terminal device 3, and the operator can judge the specific position between the insertion portion 20 and the target object 2 (such as a lesion) according to the image displayed on the terminal device 3. The terminal device 3 displays a first mark circle 4 and a second mark circle 5, and is also used to display the relative positions of the first light spot 221a, the second light spot 222a and the target object 2. It should be noted that when the operator is pushing the insertion portion 20, the light emitting device 220 is in a closed state to avoid the first light spot 221a and / or the second light spot 222a from affecting the operator's judgment.

[0080] Please refer to Fig. 9 It should be noted that the first mark circle 4 is the maximum range circle that the operator can see. Since the range of images that the lighting device 230 can capture is limited, the environment outside the first mark circle 4 cannot be captured by the lighting device 230, and thus the operator cannot see it. The area within the first mark circle 4 is the operator's visible area. Please also refer to Fig. 9 and Fig.10The second marking circle 5 is a circle for assisting the surgeon in determining the specific size of the target object 2. Specifically, when the distance between the insertion portion 20 and the target object 2 is the standard distance L, if a large portion of the target object 2 is outside the second marking circle 5, it indicates that the size of the target object 2 is too large; if a large portion of the target object 2 is inside the second marking circle 5, it indicates that the size of the target object 2 is too small; if the target object 2 is basically inside the second marking circle 5 (that is, a small portion of the target object 2 is outside the second marking circle 5 or a small portion is inside the second marking circle 5. It should be noted that whether the target object 2 is inside the second marking circle 5 can be mainly determined based on: the ratio of the volume inside the second marking circle 5 to the overall volume of the target object 2. For example, when the above ratio is greater than 90%, it indicates that the target object 2 is basically inside the second marking circle 5), it indicates that the size of the target object 2 is moderate.

[0081] For details, please refer to Fig.11 In this embodiment, the method for using the endoscope may include: steps S100-S500, and steps S100-S500 will be introduced separately later.

[0082] Step S100: Move the insertion part so that the target object is located within the first marking circle.

[0083] The embodiment of the present application does not impose any specific restrictions on the target object. For example, it can be a lesion, or an organ or tissue to be observed. When the target object is located within the first marking circle, it means that the target object is already in the area where the surgeon can perform surgery.

[0084] In some other implementations, step S100 may further include step S110.

[0085] Step S110: Move the insertion part so that the target object is located at the center of the first marking circle.

[0086] This can further facilitate the operator to more clearly observe the environment around the target object, thereby facilitating the operator to perform surgery. When the target object appears within the operator's field of vision, step S200 can be performed.

[0087] Step S200: Turn on the first light emitting unit and form a first light spot on the target object.

[0088] Although the target object appears in the operator's field of view, it is still difficult for the operator to locate the specific position of the target object, so a reference object is needed for auxiliary judgment. The first light spot can be used to locate the target object to assist the operator in further locating the specific position of the target object.

[0089] Step S300: Turn on the second light emitting unit and form a second light spot on the target object.

[0090] After the first light spot locates the specific position of the target object, the second light spot can cooperate with the first light spot. The size of the second light spot can change with the change of the distance between the insertion part and the target object to determine the distance between the insertion part and the target object at this time.

[0091] It should be noted that, in some other embodiments, the order of step S200 and step S300 is not limited. For example, step S300 may be performed first and then step S200. For another example, step S200 and step S300 may be performed simultaneously.

[0092] Step S400: moving the inserting portion so that the second light spot overlaps with the first light spot in at least a portion of its area.

[0093] During the process of moving the insertion part, if the second light spot overlaps with the first light spot at least partially, it means that the insertion part is at a standard distance from the target object. At the standard distance, it is most convenient for the surgeon to perform surgery.

[0094] Step S500: Determine whether the target object is located within the second marking circle.

[0095] Before the surgeon performs surgery, the surgeon needs to determine whether the target object is suitable for surgery. If the target object is too large or too small, surgery is not suitable, so this step can be used to assist the surgeon in determining the specific size of the target object.

[0096] In summary, the embodiment of the present application also provides a method for using an endoscope 1, by moving the insertion portion 20 so that the target object 2 in the screen transmitted by the endoscope 1 to the terminal device 3 is located within the first mark circle 4, then turning on the first light unit 221 and the second light unit 222, and forming a first light spot 221a and a second light spot 222a on the target object 2, and then moving the insertion portion 20 so that the first light spot 221a and / or the second light spot 222a circle the target object 2 to define the target area on the target object 2, and making the second light spot 222a overlap with at least part of the first light spot 221a to determine the distance between the target area and the insertion portion 20, and finally determining whether the target object 2 is located in the second mark circle 5 in the screen of the terminal device 3 to determine the specific size of the target object 2. The method for using the endoscope 1 provided in the embodiment of the present application can assist the operator to quickly and conveniently locate the distance between the lesion and the insertion portion 20, and can assist the operator to quickly and conveniently determine the relative size of the lesion.

[0097] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0098] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0099] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insertion portion (20) for an endoscope (1), characterized in that: The inserting portion (20) comprises: A front end component (210), wherein the front end component (210) is provided with an instrument channel (211) for guiding an instrument toward its distal end to reach the target object (2); and a light emitting device (220), the light emitting device (220) being arranged on the front end assembly (210), the light emitting device (220) comprising a first light emitting unit (221) and a second light emitting unit (222) arranged on the periphery of the instrument channel (211), the first light emitting unit (221) being used for emitting collimated light parallel to the axis of the instrument channel (211) toward the distal end side of the front end assembly (210), and the second light emitting unit (222) being used for emitting non-collimated light toward the distal end side of the front end assembly (210); When the front-end component (210) is at a standard distance (L) from the target object (2), a second light spot (222a) formed by the second light-emitting unit (222) on the target object (2) is tangent to or partially overlaps with a first light spot (221a) formed by the first light-emitting unit (221) on the target object (2).

2. The insert portion (20) according to claim 1, characterized in that: When the distance between the insertion portion (20) and the target object (2) is a standard distance (L), the size of the first light spot (221a) is smaller than the size of the second light spot (222a).

3. The insert portion (20) according to claim 1, characterized in that: The first light spots (221a) include at least two, and the light emitting direction of the first light emitting unit (221) is arranged in parallel with the light emitting direction of the second light emitting unit (222); When the distance between the insertion portion (20) and the target object (2) is a standard distance, part of one of the first light spots (221a) covers the second light spot (222a), and part of another of the first light spots (221a) covers the second light spot (222a).

4. The insert portion (20) according to claim 1, characterized in that: The light emitting direction of the first light emitting unit (221) and the light emitting direction of the second light emitting unit (222) are arranged to intersect; When the distance between the insertion portion (20) and the target object (2) is a standard distance, a portion of the first light spot (221a) covers the second light spot (222a).

5. The insert portion (20) according to claim 1, characterized in that: The second light emitting unit (222) and the first light emitting unit (221) are arranged opposite to each other in the radial direction with respect to the instrument channel (211).

6. The insert portion (20) according to claim 1, characterized in that: The first light spot (221a) is one of a circular light spot, an annular light spot, a triangular light spot or a square light spot; And / or, the second light spot (222a) is one of a circular light spot, an annular light spot or a strip light spot.

7. The insert portion (20) according to claim 1, characterized in that: The first light-emitting unit (221) and / or the second light-emitting unit (222) is an optical fiber; And / or, the first light-emitting unit (221) and / or the second light-emitting unit (222) are integrated into the front end component (210), and are linearly arranged along the axial direction of the front end component (210) or spirally arranged along the axial direction of the front end component (210).

8. The insert portion (20) according to claim 1, characterized in that: The first light spot (221a) and the second light spot (222a) have different brightness; And / or, the first light spot (221a) and the second light spot (222a) have different colors.

9. An endoscope (1), characterized in that: It comprises a handle portion (10) and an insertion portion (20) according to any one of claims 1 to 8, wherein the insertion portion (20) is connected to the handle portion (10).

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