Tip head for enlarging field angle of endoscope

Abstract

The utility model discloses a tip for enlarging the field angle of an endoscope, the endoscope comprises a tip and a sensor assembly, the tip comprises a head, the head is cylindrical, the sensor assembly comprises an image acquisition sensor, the image acquisition sensor is fixedly connected with the head, and the image acquisition sensor is connected with the head. The first central axis of the head and the second central axis of the image acquisition sensor form an included angle, and the range of the included angle is larger than 0 degree and smaller than 90 degrees. The tip can enlarge the field angle of the endoscope.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a tip that expands the field of view of an endoscope. Background Technology

[0002] An endoscope is a commonly used medical device used to observe cavities, organs, or tissues inside the human body. The field of view observed by current endoscopes is determined by an image acquisition sensor mounted on the tip. Typically, the image acquisition sensor is mounted horizontally in the tip of the endoscope, which limits the field of view. To expand the observable field of view, some endoscopes have their tip bent.

[0003] However, bending the tip of the endoscope requires more space to pass through when entering the body. This not only creates resistance to the instrument's internal operation but also causes additional pain to the patient. Even worse, the bent tip may rupture the insertion channel, leading to significant endoscopic complications and side effects. Furthermore, the bent tip requires additional bending during manufacturing, causing simultaneous bending of the internal working channel, which complicates assembly, resulting in high scrap rates, low production efficiency, and increased manufacturing costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a tip that expands the field of view of an endoscope, thereby increasing the field of view of the tip.

[0005] This utility model is achieved through the following technical solution:

[0006] An endoscope tip for expanding the field of view, the endoscope includes an endoscope tip and a sensor assembly, the endoscope includes a head, the head is cylindrical, the sensor assembly includes an image acquisition sensor, the image acquisition sensor is fixedly connected to the head, the first central axis of the head and the second central axis of the image acquisition sensor together form an angle α, the angle α is in the range of 8° to 20°.

[0007] Furthermore, the head has a first mounting hole that extends through the head, and the image acquisition sensor is installed in the first mounting hole.

[0008] Furthermore, the distance between the tip of the image acquisition sensor and the end face of the head is 1–2 mm.

[0009] Furthermore, the endoscope also includes an insertion tube, and the tip also includes a tail, on which a second mounting hole is provided, and one end of the insertion tube is installed in the second mounting hole.

[0010] Furthermore, the endoscope also includes an endoscope tube, the end of which is fixedly connected to the tail, and at least part of the tail is housed in the end.

[0011] Furthermore, a mounting key protrudes from the tail end, and a groove is provided at the end, into which the mounting key engages.

[0012] Furthermore, the insertion tube is at least partially embedded in the outer tube of the endoscope, and the transmission signal line is located between the insertion tube and the outer tube of the endoscope.

[0013] Furthermore, the included angle (α) is 10~15°.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. Since the first central axis of the tip and the second central axis of the image acquisition sensor form an angle together, the field of view that the endoscope can observe can be increased.

[0016] 2. It avoids bending the tip of the endoscope, making it easier to insert instruments, greatly increasing the convenience of operation, and reducing the discomfort of the person being observed.

[0017] 3. Simple structure, convenient for production and processing, and low manufacturing cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an endoscope;

[0019] Figure 2 A schematic diagram of the structure of a tip for expanding the field of view of an endoscope;

[0020] Figure 3 for Figure 2 CC section view;

[0021] Figure 4 This is a schematic diagram of the tip structure;

[0022] Figure 5 This is a three-dimensional view of the tip.

[0023] The diagram is labeled as follows: 100-Endoscope, A-First central axis, B-Second central axis, 1-Tip, 11-First mounting hole, 12-Second mounting hole, 13-Receiving groove, 14-Tail, 141-Mounting key, 15-Head, 151-End face, 152-Instrument hole, 2-Sensor assembly, 21-Image acquisition sensor, 210-Tip, 22-Circuit board, 23-Transmission signal line, α-Angle, 4-Insert tube, 41-Instrument channel, 5-Endoscope outer tube, 51-End, 511-Groove, 6-Handle. Detailed Implementation

[0024] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] like Figures 1 to 5 As shown, this utility model discloses a tip for expanding the field of view of an endoscope. The endoscope 100 includes a tip 1, a sensor assembly 2, an insertion tube 4, an endoscope outer tube 5, and a handle 6.

[0026] The sensor assembly 2 includes an image acquisition sensor 21, a circuit board 22, and a transmission signal line 23. The image acquisition sensor 21 is fixedly connected to the tip 1, and the insertion tube 4 and the endoscope outer tube 5 are both fixedly connected to the tip 1. The tip of the endoscope 100 includes the tip 1, the insertion tube 4, and the endoscope outer tube 5. In use, the tip of the endoscope 100 can enter the human body through a natural body cavity entrance (such as the mouth, nose, rectum, etc.) or a surgical incision to view the condition of internal organs, tissues, or cavities. The image acquisition sensor 21 fixed on the tip 1 captures images or videos of the internal organs and tissues of the human body.

[0027] like Figure 3As shown, the tip 1 is a housing, manufactured using a one-piece molding process. The tip 1 includes a head 15 and a tail 14 connected to each other. The image acquisition sensor 21 is fixedly connected to the head 15. The head 15 has a first mounting hole 11 that penetrates through the head 15. The image acquisition sensor 21 is installed in the first mounting hole 11. The distance between the end 210 of the image acquisition sensor 21 and the end face 151 of the head 15 is 1-2 mm. The head 15 is generally cylindrical and has a first central axis A (A: the center line of the endoscope outer tube 5). The image acquisition sensor 21 is also cylindrical and has a second central axis B (B: the perpendicular line from the front end face of the image acquisition sensor 21 through the center point of the image). The first central axis A and the second central axis B are on the same plane and together form an angle α, which ranges from 0° to 90°. Through experiments and actual size measurements, the larger the included angle α (i.e., the endoscope viewing angle), the larger the conical angle of the observation area obtained by rotating 360° along the first central axis A (theoretically, this conical angle increases by 2α degrees). This results in a larger view of internal organs, tissues, or cavities within the field of view of the endoscope insertion section. When the included angle α is greater than 20°, it is not conducive to the doctor's observation of lesions anterior to the first central axis A (i.e., directly in front of the endoscope insertion section). This requires more steps during operation, leading to a poor patient experience, and also increases the processing difficulty, causing a significant increase in processing costs. Therefore, preferably, the included angle α is in the range of 8° to 20°. More preferably, the included angle α is 10° to 15°; in this embodiment, the included angle α is 10°. By setting the included angle α, the field of view that the endoscope can observe can be effectively increased, while avoiding bending the tip of the endoscope. This avoids the need for bending processes during production, which would require synchronous bending of the internal channels, causing difficulties in assembly and production, resulting in high scrap rates, low production efficiency, and increased manufacturing costs. Furthermore, it facilitates instrument insertion, greatly increasing operational convenience and reducing discomfort for the patient. The head 15 also has a receiving groove 13, which communicates with the first mounting hole 11. The circuit board 22 is fixed in the receiving groove 13 and is fixedly connected to the image acquisition sensor 21. The fixed connection method can be screw connection, welding, snap-fit ​​connection, etc.

[0028] A second mounting hole 12 is provided on the tail section 14, and one end of the insertion tube 4 is installed in the second mounting hole 12. An instrument hole 152 is provided on the head section 15, which is connected to the second mounting hole 12. External instruments (such as biopsy forceps, foreign body forceps, scissors, etc.) enter the human body through the instrument channel 41 formed by the insertion tube 4 and enter the human body through the instrument hole 152. At the same time, external fluid also enters the human body through the instrument channel 41 and the instrument hole 152. By rinsing and cleaning the examination area with the injected fluid, the quality of endoscopic imaging is improved, and a clearer field of view is obtained.

[0029] The end 51 of the endoscope outer tube 5 is fixedly connected to the tail 14, and at least part of the tail 14 is housed in the end 51. A mounting key 141 protrudes from the tail 14, and a groove 511 is formed on the end 51. The shape and size of the groove 511 match the shape of the mounting key 141, and the mounting key 141 is engaged in the groove 511. Preferably, in this embodiment, there is one mounting key 141 and one groove 511. The insertion tube 4 is at least partially embedded in the endoscope outer tube 5, and the transmission signal line 23 is disposed between the insertion tube 4 and the endoscope outer tube 5. The tip 1 has a simple structure, is easy to manufacture, and has low manufacturing costs.

[0030] Image acquisition sensor 21 is responsible for converting optical signals into electrical signals. Preferably, in this embodiment, a CMOS (Complementary Metal-Oxide-Semiconductor) sensor is used, which has lower power consumption, smaller size, and faster frame rate. Circuit board 22 is electrically connected to image acquisition sensor 21 to receive electrical signals emitted by image acquisition sensor. Circuit board 22 is connected to an external display device (not shown) via transmission signal line 23 to observe the transmitted images or videos, thereby assisting medical professionals in making accurate diagnoses and treatments.

[0031] When other areas need to be observed, the endoscope 100 can be observed simply by rotating the handle 6, avoiding the need for a larger rotation space required by the bent front end, which would cause discomfort to the person being observed.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tip for expanding the field of view of an endoscope, characterized in that, The endoscope (100) includes a tip (1) and a sensor assembly (2). The tip (1) includes a head (15). The sensor assembly (2) includes an image acquisition sensor (21). The image acquisition sensor (21) is fixedly connected to the head (15). The head (15) is columnar. The first central axis A of the head (15) and the second central axis B of the image acquisition sensor (21) together form an angle (α). The angle (α) ranges from 8° to 20°.

2. The endpiece for expanding the field of view of an endoscope according to claim 1, characterized in that, The head (15) has a first mounting hole (11) through which the first mounting hole (11) passes, and the image acquisition sensor (21) is installed in the first mounting hole (11).

3. The end cap for expanding the field of view of an endoscope according to claim 2, characterized in that, The distance between the end (210) of the image acquisition sensor (21) and the end face (151) of the head (15) is 1-2 mm.

4. The endpiece for expanding the field of view of an endoscope according to claim 1, characterized in that, The endoscope (100) also includes an insertion tube (4), and the tip (1) also includes a tail (14), on which a second mounting hole (12) is provided, and one end of the insertion tube (4) is installed in the second mounting hole (12).

5. The endpiece for expanding the field of view of an endoscope according to claim 4, characterized in that, The endoscope (100) also includes an endoscope tube (5), the end (51) of which is fixedly connected to the tail (14) and at least part of the tail (14) is housed in the end (51).

6. The endpiece for expanding the field of view of an endoscope according to claim 5, characterized in that, The tail (14) is provided with a mounting key (141), and the end (51) is provided with a groove (511), and the mounting key (141) is engaged in the groove (511).

7. The endpiece for expanding the field of view of an endoscope according to claim 5, characterized in that, The insertion tube (4) is at least partially embedded in the endoscope outer tube (5), and the transmission signal line (23) is disposed between the insertion tube (4) and the endoscope outer tube (5).

8. The endpiece for expanding the field of view of an endoscope according to claim 1, characterized in that, The included angle (α) is 10~15°.

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