A controllable transparent cap and method for assisting digestive endoscopy controlled by a brushless motor

Abstract

The present invention discloses a controllable transparent cap and method for assisting digestive endoscopy controlled by a brushless motor, and belongs to the field of digestive endoscopy medical devices. Specifically, a brushless motor and a track fixing part are provided on the outer sleeve of a coupling connector, and the clockwise and counterclockwise rotation and rotation angle of a movable rotor are controlled by the brushless motor; a plurality of movable red plates are provided between the movable rotor and the track fixing part, and the movable red plates are evenly spaced along the circumference of the movable rotor; one end of the movable red plate is fixedly connected to the movable rotor; a plurality of sliding grooves are provided on the surface of the track fixing part in contact with the movable rotor, and a positioning column is provided on the side of the movable red plate in contact with the track fixing part, and the positioning column forms a sliding connection in the sliding groove; when the movable rotor and the track fixing part rotate relative to each other, the positioning column on the movable red plate slides back and forth in the sliding groove, realizing the opening and closing of the movable red plate and thus adjusting the inner diameter of the transparent cap.

Description

Technical Field

[0001] The present invention belongs to the field of digestive endoscopy medical devices, and in particular relates to a controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor and a method thereof. Background Art

[0002] Gastrointestinal endoscopy, the gold standard for early gastrointestinal cancer screening and the primary means of noninvasive diagnosis and minimally invasive treatment, has been widely used in hospitals at all levels nationwide. However, due to the complex anatomy of the digestive tract and the hidden nature of lesions, the rate of missed diagnoses during endoscopy remains high. To reduce missed diagnoses, in addition to relying on the physician's extensive experience, high-quality equipment is also necessary.

[0003] As an important auxiliary tool for endoscopic examination, the transparent cap is usually installed at the end of the endoscope. It can expand the field of view and stabilize the operating space. Therefore, it is widely used in the diagnosis and treatment of various digestive tract diseases. However, the existing transparent caps still have limitations when dealing with complex digestive tract structures. Traditional transparent caps usually have a fixed inner diameter, which is insufficient when dealing with larger or complex lesions, especially in areas with mucosal folds and twists, which often lead to missed diagnoses due to limited field of view. In order to better adapt to the different sizes and morphologies of lesions, existing transparent caps often need to be replaced with different models according to specific circumstances, which not only increases the complexity of the operation, but also affects the efficiency of diagnosis and treatment.

[0004] The Chinese invention patent with the authorization publication number CN105250021B describes a transparent cap with an inner diameter that can be adjusted by a pulling structure. When entering the body, the inner diameter is reduced to a minimum by pulling the steel bar, and then expanded to a suitable size to adapt to the morphology of different lesions, and the ligation is completed with an insulating rubber band. However, the adjustment method relying on mechanical pulling of the steel bar has limited accuracy, especially in a complex digestive tract environment. The pulling structure may have friction resistance, especially in narrow or wrinkled digestive tract areas, resulting in inflexible adjustment and increasing the difficulty and complexity of the operation. In addition, the transparent cap disclosed in the patent is used for endoscopic resection surgery and is not a ring-shaped structure. It is not suitable for installation at the end of the endoscope to expand the field of view.

[0005] Therefore, it is urgent to develop a transparent cap structure that can flexibly adjust the inner diameter according to actual needs. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that the inner diameter of the existing transparent cap for auxiliary digestive endoscopy is fixed, which leads to deficiencies when examining large or complex lesions, and to provide a controllable transparent cap and method for auxiliary digestive endoscopy controlled by a brushless motor.

[0007] The specific technical solutions adopted in the present invention are as follows:

[0008] In a first aspect, the present invention provides a controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor, characterized in that it includes a coupling connector, a track fixing member, a brushless motor, a movable rotor and a movable red plate;

[0009] The coupling connector is a hollow annular component that is sleeved on the front end of the endoscope; a brushless motor and a track fixing member are sleeved on the periphery of the coupling connector; the track fixing member is fixed to the periphery of the coupling connector; the brushless motor includes a connecting wing and a magnet; the movable rotor is fixed to the periphery of each brushless motor via the connecting wing, and the clockwise and counterclockwise circumferential rotation and rotation angle of the movable rotor are controlled by the brushless motor;

[0010] A plurality of movable red plates are arranged between the movable rotor and the track fixing part, and the movable red plates are evenly spaced along the circumference of the movable rotor; one end of the movable red plate is fixedly connected to the movable rotor; a plurality of slide grooves are provided on the surface of the track fixing part in contact with the movable rotor, and the slide grooves are evenly spaced along the circumference of the track fixing part, and each slide groove is opened along the radial direction of the track fixing part; a positioning column is provided on the side of the movable red plate in contact with the track fixing part, and the positioning column forms a sliding connection in the slide groove; when the movable rotor and the track fixing part rotate relative to each other, the positioning column on the movable red plate slides back and forth in the slide groove, thereby realizing the opening and closing of the movable red plate and adjusting the inner diameter of the transparent cap.

[0011] Preferably, a second positioning column and a first positioning column are respectively provided on the upper and lower sides of the movable red plate; the second positioning column is inserted into the positioning groove provided on the movable rotor to fix the movable red plate on the movable rotor; the first positioning column forms a sliding connection in the slide groove.

[0012] Preferably, a wire groove for laying wires is provided on the inner side wall of the coupling connector, and the wire groove is arranged along the axial direction of the coupling connector; the wires pass through the wire hole of the endoscope and are connected to the brushless motor along the laying direction of the wire groove.

[0013] Preferably, an annular wiring groove for limiting the position of the wires is provided on the inner side wall of the brushless motor.

[0014] Preferably, two brushless motors are provided, which are respectively fixed on the front and rear sides of the track fixing member on the coupling connector.

[0015] Preferably, 12 to 15 movable blades are fixed on each movable rotor.

[0016] Preferably, the maximum diameter of the movable red plate when opened is 3 cm.

[0017] Preferably, the movable red plate is made of transparent material.

[0018] Preferably, the track fixing member is made of a highly wear-resistant material, and the slide groove is coated with a lubricant to reduce the friction of the movable plate sliding in the slide groove.

[0019] In a second aspect, the present invention provides a method for utilizing the controllable transparent cap for assisting digestive endoscopy according to the first aspect, wherein the specific method of use is as follows:

[0020] Put the controllable transparent cap on the front end of the endoscope, lead out the wire from the wire hole of the endoscope and connect it to the brushless motor, and connect the other end of the wire to the DC power supply;

[0021] When the endoscope's field of view needs to be widened, a positive current is fed into the brushless motor. This current flows through the main control circuit board, causing the stator winding to form a continuously changing magnetic field, driving the movable rotor to rotate clockwise. The movable rotor drives the movable red plate to slide in the slide groove on the track fixture. As the movable rotor rotates clockwise, the movable red plate slides in the slide groove and gradually opens, expanding the inner diameter of the transparent cap, thereby improving the coverage of the observation area.

[0022] When the field of view needs to be narrowed or restored to its original state, the main control circuit board switches the current direction and feeds reverse current into the brushless motor; this reverses the magnetic field of the stator winding, driving the movable rotor to rotate counterclockwise; the movable rotor drives the movable red plate to slide in the slide groove on the track fixing part; as the movable rotor rotates counterclockwise, the movable red plate slides in the slide groove, gradually closing to the set inner diameter, and the inner diameter of the transparent cap decreases.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Precise adjustment of inner diameter: The present invention controls the inner diameter of the transparent cap through a brushless motor, which can be precisely adjusted according to the actual shape and size of the lesion area, avoiding the friction resistance and inflexible adjustment problems caused by the traditional mechanical traction structure, and is particularly suitable for complex digestive tract environments.

[0025] 2. Simple and efficient operation: Compared with the existing method of frequently replacing transparent caps of different models, the present invention can adjust the inner diameter in real time during the operation, reducing the complexity of the operation, improving the efficiency of diagnosis and treatment, and avoiding the time waste caused by changing equipment.

[0026] 3. Expand the field of view: Through the design of variable inner diameter, the transparent cap can adapt to various lesion shapes and sizes, effectively broadening the observation range of the endoscope and reducing the risk of missed diagnosis in mucosal folds or stenosis, especially in the gastric fundus fold area, duodenal stenosis and tumor tissue edge, with better observation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1A schematic diagram showing the deployment of the movable red plate of the controllable transparent cap provided in this embodiment;

[0028] Figure 2 A schematic diagram of a coupling connector provided in this embodiment;

[0029] Figure 3 This is a schematic diagram of the connection between the brushless motor and the movable rotor in this embodiment;

[0030] Figure 4 A schematic diagram of the movable red plate provided in this embodiment;

[0031] Figure 5 Schematic diagram of the connection between the movable rotor and the movable red plate in this embodiment;

[0032] Figure 6 A schematic diagram of a track fixing member provided in this embodiment;

[0033] Figure 7 A schematic diagram showing the closing of the movable red plate of the controllable transparent cap provided in this embodiment;

[0034] In the figure: coupling connector 1, wire groove 1-1, track fixing part 2, slide groove 2-1, brushless motor 3, connecting wing 3-1, magnet 3-2, movable rotor 4, movable red plate 5, first positioning column 5-1, second positioning column 5-2, endoscope 6. DETAILED DESCRIPTION

[0035] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention may be combined accordingly, provided that there is no conflict between them.

[0036] As a preferred embodiment of the present invention, this embodiment provides a controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor, including a coupling connector 1, a track fixing part 2, a brushless motor 3, a movable rotor 4 and a movable red plate 5.

[0037] like Figure 1 As shown, the solution provided in this embodiment includes an annular coupling connector 1, a track fixing member 2, two annular movable rotors 4 with brushless motors 3, and a plurality of movable blades 5.

[0038] like Figure 2As shown, the coupling connector 1 is a hollow annular component that is mounted on the front end of the endoscope 6; the outer periphery of the coupling connector 1 is provided with a brushless motor 3 and a track fixture 2. In this embodiment, the track fixture 2 is fixed to the middle portion of the outer periphery of the coupling connector 1; in this embodiment, two brushless motors 3 are provided, which are respectively fixed to the front and rear sides of the track fixture 2 on the coupling connector 1. A wire groove 1-1 for laying wires is also provided on the inner side wall of the coupling connector 1. The wire groove 1-1 is arranged along the axial direction of the coupling connector 1. After passing through the wire hole of the endoscope 6, the wire is connected to the brushless motor 3 along the laying direction of the wire groove 1-1.

[0039] like Figure 3 As shown, the brushless motor 3 includes a connecting wing 3-1 and a magnet 3-2. A brushless motor is an electric motor that uses an electronic commutator to control the direction of current, thereby driving the motor. Unlike traditional brushed motors, it does not use a mechanical commutator. The main components of a brushless motor include a stator, a rotor, and an electronic controller. The movable rotor 4 is fixed to the periphery of each brushless motor 3 through the connecting wing 3-1. The clockwise and counterclockwise circumferential rotation and rotation angle of the movable rotor 4 are controlled by the brushless motor 3. The inner wall of the brushless motor 3 is provided with an annular wiring groove to limit the wires and prevent them from falling off.

[0040] like Figure 5 As shown, a plurality of movable red plates 5 are provided between the movable rotor 4 and the track fixing member 2, and the movable red plates 5 are evenly spaced along the circumference of the movable rotor 4; one end of the movable red plate 5 is fixedly connected to the movable rotor 4; a plurality of chute grooves 2-1 are provided on the surface of the track fixing member 2 in contact with the movable rotor 4, and the chute grooves 2-1 are evenly spaced along the circumference of the track fixing member 2, and each chute groove 2-1 is provided along the radial direction of the track fixing member 2, as shown in FIG. Figure 6 shown.

[0041] The schematic diagram of each movable red plate 5 is as follows Figure 4 As shown in the figure, in this embodiment, the movable plate 5 is provided with a second positioning post 5-2 and a first positioning post 5-1 on its upper and lower sides, respectively. The second positioning post 5-2 is inserted into the positioning slot on the movable rotor 4, securing the movable plate 5 to the movable rotor 4. The first positioning post 5-1 slides within the slide slot 2-1. When the movable rotor 4 and the track fixing member 2 rotate relative to each other, the positioning post on the movable plate 5 slides back and forth within the slide slot 2-1, causing the movable plate 5 to open and close, thereby adjusting the inner diameter of the transparent cap.

[0042] In this embodiment, each movable rotor 4 is secured with 12 transparent movable blades 5. Each blade 5 has a maximum opening diameter of 3 cm, which increases the inner diameter of the transparent cap and thus improves the coverage of the observation area. It should be noted that those skilled in the art can select an appropriate number and material of movable blades 5 based on actual needs. A setting of 12 to 15 movable blades 5 is acceptable. In this embodiment, the track fixture 2 is made of a highly wear-resistant material, and the chute 2-1 is coated with lubricant to reduce friction caused by the movable blades 5 sliding within the chute 2-1.

[0043] The following provides a method for utilizing the controllable transparent cap for assisting digestive endoscopy. The specific method of use is as follows:

[0044] Put the controllable transparent cap on the front end of the endoscope 6, lead out the wire from the wire hole of the endoscope 6 and connect it to the brushless motor 3, and connect the other end of the wire to the DC power supply;

[0045] When the field of view of the endoscope 6 needs to be widened, a positive current is supplied to the brushless motor 3; the current passes through the main control circuit board to form a constantly changing magnetic field in the stator winding, driving the movable rotor 4 to rotate clockwise; the movable rotor 4 drives the movable red plate 5 to slide in the slide groove 2-1 on the track fixing part 2; as the movable rotor 4 rotates clockwise, the movable red plate 5 slides in the slide groove 2-1 and gradually opens, and the inner diameter of the transparent cap expands, thereby improving the coverage of the observation area. The expansion of the movable red plate of the controllable transparent cap is shown in the figure below. Figure 1 shown.

[0046] During the deployment process, the electronic controller precisely adjusts the rotation angle of the rotor to ensure that the movable blade opens to the appropriate position; during the movement of the brushless motor, there is only slight friction from the bearings and air resistance, so the overall movement is smooth and the response is quick, which facilitates the use of the endoscope in narrow and twisted areas.

[0047] When it is necessary to reduce the field of view or restore the original state, the main control circuit board switches the current direction and supplies reverse current to the brushless motor 3; this causes the magnetic field of the stator winding to reverse, driving the movable rotor 4 to rotate counterclockwise; the movable rotor 4 drives the movable red plate 5 to slide in the slide groove 2-1 on the track fixing part 2; as the movable rotor 4 rotates counterclockwise, the movable red plate 5 slides in the slide groove 2-1, gradually closing to the set inner diameter, and the inner diameter of the transparent cap decreases. The closing of the movable red plate of the controllable transparent cap is shown in Figure 2. Figure 7 shown.

[0048] The reverse closing process is also precisely controlled by the electronic control system to avoid over-adjustment or misoperation. At the same time, the system monitors the movement state of the rotor in real time based on the Hall sensor. Whenever the Hall sensor detects that the rotor has reached a specific position, the electronic controller stops the current according to the preset angle to ensure the accuracy of the inner diameter adjustment and avoid over- or under-adjustment.

[0049] Through the precise control of the brushless motor, doctors can flexibly adjust the inner diameter of the transparent cap according to actual needs to adapt to the size and shape of different lesion areas, thereby effectively improving operational efficiency and reducing the risk of missed diagnosis.

[0050] The above embodiment is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Persons skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent substitution or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor, characterized in that: It comprises a coupling connecting part (1), a track fixing part (2), a brushless motor (3), a movable rotor (4) and a movable blade (5); The coupling connector (1) is a hollow annular component, which is sleeved on the front end of the endoscope (6); a brushless motor (3) and a track fixing member (2) are sleeved on the periphery of the coupling connector (1); the track fixing member (2) is fixed on the periphery of the coupling connector (1); the brushless motor (3) includes a connecting wing (3-1) and a magnet (3-2); the movable rotor (4) is fixed on the periphery of each brushless motor (3) through the connecting wing (3-1), and the clockwise and counterclockwise circumferential rotation and rotation angle of the movable rotor (4) are controlled by the brushless motor (3); A plurality of movable red plates (5) are arranged between the movable rotor (4) and the track fixing member (2), and the movable red plates (5) are evenly spaced along the circumference of the movable rotor (4); one end of the movable red plate (5) is fixedly connected to the movable rotor (4); a plurality of slide grooves (2-1) are provided on the surface of the track fixing member (2) in contact with the movable rotor (4), and the slide grooves (2-1) are evenly spaced along the circumference of the track fixing member (2), and each slide groove (2-1) is opened along the radial direction of the track fixing member (2); a positioning column is provided on the side of the movable red plate (5) in contact with the track fixing member (2), and the positioning column forms a sliding connection in the slide groove (2-1); when the movable rotor (4) and the track fixing member (2) rotate relative to each other, the positioning column on the movable red plate (5) slides back and forth in the slide groove (2-1), thereby realizing the opening and closing of the movable red plate (5) and adjusting the inner diameter of the transparent cap.

2. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1 is characterized in that: The movable core (5) is provided with a second positioning column (5-2) and a first positioning column (5-1) on the upper and lower sides respectively; the second positioning column (5-2) is inserted into the positioning groove provided on the movable rotor (4) to fix the movable core (5) on the movable rotor (4); the first positioning column (5-1) forms a sliding connection in the sliding groove (2-1).

3. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: A wire groove (1-1) for laying out a wire is provided on the inner side wall of the coupling connector (1), and the wire groove (1-1) is arranged along the axial direction of the coupling connector (1); the wire passes through the wire hole of the endoscope (6) and is connected to the brushless motor (3) along the laying direction of the wire groove (1-1).

4. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: An annular wiring groove for limiting the position of the wires is provided on the inner side wall of the brushless motor (3).

5. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: Two brushless motors (3) are provided and are respectively fixed on the front and rear sides of the track fixing member (2) on the coupling connecting member (1).

6. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: Each movable rotor (4) is fixed with 12 to 15 movable blades (5).

7. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: The maximum diameter of the movable red plate (5) when opened is 3 cm.

8. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: The movable red plate (5) is made of transparent material.

9. The controllable transparent cap for auxiliary digestive endoscopy controlled by a brushless motor according to claim 1, characterized in that: The track fixing member (2) is made of a highly wear-resistant material, and the slide groove (2-1) is coated with a lubricant to reduce the friction force of the movable plate (5) sliding in the slide groove (2-1).

10. A method for using the controllable transparent cap for assisting digestive endoscopy according to any one of claims 1 to 9, characterized in that: The specific usage is as follows: The controllable transparent cap is placed on the front end of the endoscope (6), a wire is led out of the wire hole of the endoscope (6) and connected to the brushless motor (3), and the other end of the wire is connected to a DC power supply; When it is necessary to widen the field of view of the endoscope (6), a positive current is supplied to the brushless motor (3); the current passes through the main control circuit board, causing the stator winding to form a continuously changing magnetic field, driving the movable rotor (4) to rotate clockwise; the movable rotor (4) drives the movable red plate (5) to slide in the slide groove (2-1) on the track fixing member (2); as the movable rotor (4) rotates clockwise, the movable red plate (5) slides in the slide groove (2-1) and gradually opens, and the inner diameter of the transparent cap expands, thereby improving the coverage of the observation area; When it is necessary to reduce the field of view or restore the original state, the main control circuit board switches the current direction and feeds a reverse current to the brushless motor (3); this causes the magnetic field of the stator winding to reverse, driving the movable rotor (4) to rotate counterclockwise; the movable rotor (4) drives the movable red plate (5) to slide in the slide groove (2-1) on the track fixing member (2); as the movable rotor (4) rotates counterclockwise, the movable red plate (5) slides in the slide groove (2-1), gradually closing to a set inner diameter, and the inner diameter of the transparent cap decreases.

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