Tip structure and endoscope

Abstract

The utility model relates to a tip structure and an endoscope, the tip structure comprises a tip shell and an imaging module, and the tip shell is internally provided with a first accommodating cavity penetrating along the axial direction of the tip shell; a mounting hole is formed in the side wall, corresponding to the first accommodating cavity, of the tip shell, and a side cover is arranged at the mounting hole; the imaging module comprises an image capturing module and a first circuit board which are electrically connected with each other, and the first circuit board is arranged in the first accommodating cavity and corresponds to the mounting hole; and the image capturing module is arranged in the first accommodating cavity and is close to the far end of the tip shell. Therefore, the reliability of the tip structure can be improved, and the reliability of the endoscope can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a tip structure and an endoscope. Background Art

[0002] Endoscopes are primarily used in surgical procedures and routine medical examinations. In clinical use, doctors insert the endoscope's tip into the body through natural orifices or by making tiny incisions. Using other surgical instruments and an image processor, they perform surgical procedures externally and internally. Compared to traditional surgical procedures, minimally invasive procedures using endoscopes inflict smaller incisions and allow patients to recover more quickly. Consequently, endoscopes have become widely used.

[0003] An imaging module is housed within the tip of an endoscope, which illuminates and observes human cavities and tissues. To ensure the tip of the endoscope can smoothly navigate narrow cavities and minimize surgical harm to the patient, the tip is typically designed to be very small. The assembly space for the molding module within the tip is very limited, making assembly of the imaging module difficult and challenging to control, which in turn impacts the tip's reliability. Utility Model Content

[0004] Based on this, the present application provides a tip head structure and an endoscope to facilitate the assembly of the imaging module and improve the assembly accuracy of the imaging module, thereby improving the reliability of the tip head structure.

[0005] A tip head structure includes a tip shell and an imaging module, wherein a first accommodating cavity is provided in the tip shell and extends axially therethrough; a mounting hole is provided on the side wall of the tip shell corresponding to the first accommodating cavity, and a side cover is provided at the mounting hole; the imaging module includes an imaging module and a first circuit board electrically connected to each other, the first circuit board is provided in the first accommodating cavity and corresponds to the mounting hole; the imaging module is located in the first accommodating cavity and is arranged near the far end of the tip shell.

[0006] In some embodiments, latch tongues are provided on both sides of the side cover, and slots adapted to the latch tongues are provided on the side walls of the front end shell, and the latch tongues are inserted into the slots.

[0007] In some embodiments, the imaging module includes a camera and a light source arranged in parallel; a first partition is provided in the first accommodating cavity, and the first partition is located between the camera and the light source.

[0008] In some embodiments, the tip head structure also includes an instrument channel tube; the tip shell is also provided with a second accommodating cavity that penetrates along its own axial direction, the second accommodating cavity is arranged in parallel with the first accommodating cavity, and the instrument channel tube is passed through the second accommodating cavity.

[0009] In some embodiments, the first accommodating cavity and the second accommodating cavity are connected; a second partition is provided in the second accommodating cavity, the second partition is located between the first circuit board and the instrument channel tube, and the side of the second partition close to the instrument channel tube is adapted to the shape of the instrument channel tube.

[0010] In some embodiments, the tip head structure also includes a sensor assembly; the tip shell is also provided with a third accommodating cavity that penetrates along its own axis, the third accommodating cavity is arranged in parallel with the first accommodating cavity, and the sensor assembly is passed through the third accommodating cavity.

[0011] In some embodiments, the tip head structure further includes a first annular connecting portion; the first annular connecting portion is connected to the proximal end of the tip shell and extends axially along the tip shell; the first annular connecting portion is used to connect to the snake bone.

[0012] In some embodiments, a notch is provided on the side wall corresponding to the first annular connecting portion and the second accommodating cavity; and / or a clamping portion is provided on the outer peripheral wall of the first annular connecting portion, and the clamping portion is used to fix the snake bone on the first annular connecting portion; a positioning piece is also provided on the outer peripheral wall of the first annular connecting portion, and the positioning piece is used to align the snake bone.

[0013] In some embodiments, the tip head structure also includes a second annular connecting portion, which connects the tip shell and the first annular connecting portion; the outer diameter of the second annular connecting portion is smaller than the outer diameter of the tip shell, and the outer diameter of the second annular connecting portion is larger than the outer diameter of the first annular connecting portion; and / or the imaging module also includes a second circuit board, which is passed through the first annular connecting portion and is connected to the first circuit board.

[0014] An endoscope comprises the tip structure described in any one of the above embodiments.

[0015] The aforementioned tip structure comprises a first accommodating cavity extending axially through the tip housing; mounting holes are formed in the sidewalls of the tip housing corresponding to the first accommodating cavity, with side covers positioned at the mounting holes; and the imaging module comprises an imaging module and a first circuit board, which are electrically connected to each other. Thus, when assembling the imaging module, the first circuit board, electrically connected to the imaging module, can be placed through the mounting hole into the first accommodating cavity. After the imaging module and the imaging module are fully assembled, the side cover can be positioned at the mounting hole. This not only facilitates assembly of the imaging module but also makes it easier to control the assembly accuracy of the imaging module, thereby improving the reliability of the tip structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the tip structure in some embodiments of the present application.

[0017] Figure 2 This is a schematic diagram of the tip structure in some embodiments of the present application from another perspective.

[0018] Figure 3 for Figure 2 The schematic diagram of the tip structure after removing the side cover is shown.

[0019] Figure 4 This is a structural schematic diagram of the tip shell of the tip head structure in some embodiments of the present application.

[0020] Figure 5 This is a schematic structural diagram of the side cover of the tip structure in some embodiments of the present application.

[0021] Description of reference numerals:

[0022] 10. Tip head structure; 11. Tip shell; 111. First accommodating chamber; 112. Mounting hole; 113. Side cover; 1131. Tab; 114. Slot; 115. First partition; 116. Second accommodating chamber; 117. Second partition; 118. Third accommodating chamber; 12. Imaging module; 121. Image capturing module; 1211. Camera; 1212. Light source; 122. First circuit board; 123. Second circuit board; 13. Instrument channel tube; 14. Sensor assembly; 15. First annular connecting portion; 151. Notch; 152. Clamping portion; 1521. Guide slope; 153. Alignment member; 16. Second annular connecting portion. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0029] The endoscope's tip houses an imaging module, which illuminates and observes human cavities and tissues. To ensure the endoscope's tip can smoothly navigate narrow cavities and minimize surgical harm to the patient, the assembly space for the molding module within the tip is very limited. This complicates assembly of the imaging module and makes it difficult to control its assembly precision, impacting the tip's reliability.

[0030] Based on the above technical problems, the present application provides a tip head structure and an endoscope to facilitate the assembly of the imaging module and improve the assembly accuracy of the imaging module, thereby improving the reliability of the tip head structure.

[0031] First, see Figures 1 to 3 An embodiment of the present application provides a tip head structure 10, including a tip shell 11 and an imaging module 12. The tip shell 11 is provided with a first accommodating cavity 111 that penetrates along its own axial direction; a mounting hole 112 is opened on the side wall of the tip shell 11 corresponding to the first accommodating cavity 111, and a side cover 113 is provided at the mounting hole 112; the imaging module 12 includes an imaging module 121 and a first circuit board 122 that are electrically connected to each other, and the first circuit board 122 is arranged in the first accommodating cavity 111 and corresponds to the mounting hole 112; the imaging module 121 is located in the first accommodating cavity 111 and is arranged near the far end of the tip shell 11.

[0032] The tip head structure 10 provided in the embodiment of the present application has a first accommodating cavity 111 extending axially through the tip housing 11. A mounting hole 112 is provided on the side wall of the tip housing 11 corresponding to the first accommodating cavity 111, and a side cover 113 is provided at the mounting hole 112. The imaging module 12 includes an image capturing module 121 and a first circuit board 122 electrically connected to each other. Thus, when assembling the imaging module 12, the first circuit board 122 electrically connected to the image capturing module 121 can be first placed into the first accommodating cavity 111 through the mounting hole 112. After the image capturing module 121 and the imaging module 12 are assembled in place, they can be pre-positioned using sealant, and then the side cover 113 can be set at the mounting hole 112. This not only facilitates the assembly of the imaging module 12, but also makes it easier to control the assembly accuracy of the imaging module 12, thereby improving the reliability of the tip head structure 10.

[0033] like Figures 3 to 5 As shown, in some embodiments, latch tongues 1131 are provided on both sides of the side cover 113 , and a slot 114 adapted to the latch tongue 1131 is provided on the side wall of the front end shell 11 , and the latch tongue 1131 is inserted into the slot 114 .

[0034] Therefore, the cooperation between the latch tongue 1131 and the latch slot 114 can play a guiding and limiting role, thereby facilitating the installation of the side cover 113 .

[0035] like Figure 1 and Figure 3 As shown, in some embodiments, the imaging module 121 includes a camera 1211 and a light source 1212 arranged in parallel; a first partition 115 is provided in the first accommodating cavity 111, and the first partition 115 is located between the camera 1211 and the light source 1212.

[0036] Thus, the camera 1211 and the light source 1212 can be separated by the first partition 115, so that the light source 1212 can provide illumination and fill light for the camera 1211, and at the same time avoid the lateral light of the light source 1212 from interfering with the imaging of the camera 1211, thereby improving the imaging effect of the camera 1211.

[0037] It should be noted that if Figure 1 and Figure 3 As shown, there can be two light sources 1212, which can be disposed on either side of the camera 1211 and symmetrically disposed about the camera 1211. This ensures uniform light intensity on both sides of the camera 1211, improving the imaging quality of the camera 1211. The light source 1212 can be an LED lamp.

[0038] like Figure 1 and Figure 3As shown, in a specific example, a first partition 115 is set between each light source component 1212 and the camera 1211; the first partition 115 can be a plate-like structure, and the two first partitions 115 can radially limit the camera 1211, the light source component 1212 and the first circuit board 122, thereby improving the assembly accuracy of the imaging module 12, and further improving the reliability of the front head structure 10.

[0039] like Figure 1 and Figure 4 As shown, in some embodiments, the tip head structure 10 also includes an instrument channel tube 13; the tip shell 11 is also provided with a second accommodating cavity 116 that passes through the tip shell along its own axial direction, and the second accommodating cavity 116 is arranged in parallel with the first accommodating cavity 111, and the instrument channel tube 13 is passed through the second accommodating cavity 116.

[0040] Therefore, by providing a second accommodating cavity 116 that penetrates along its own axial direction in the front end shell 11, the arrangement of the instrument channel tube 13 can be facilitated, so that medical personnel can deliver surgical instruments to organs inside the human body through the instrument channel tube 13 and treat the organs inside the human body.

[0041] like Figure 4 As shown, in some embodiments, the first accommodating cavity 111 and the second accommodating cavity 116 are communicated; a second partition 117 is provided in the second accommodating cavity 116, and the second partition 117 is located between the first circuit board 122 and the instrument channel tube 13, and the side of the second partition 117 close to the instrument channel tube 13 is adapted to the shape of the instrument channel tube 13.

[0042] The tip housing 11 can be manufactured using injection molding. If the first accommodating cavity 111 and the second accommodating cavity 116 are independent of each other, the thickness of the sidewall between the first accommodating cavity 111 and the second accommodating cavity 116 will be very small, which can easily cause collapse at the sidewalls of the first accommodating cavity 111 and the second accommodating cavity 116 during injection molding, increasing the difficulty of manufacturing the tip housing 11. In this embodiment, however, by connecting the first accommodating cavity 111 and the second accommodating cavity 116, that is, by eliminating the thin wall between the first accommodating cavity 111 and the second accommodating cavity 116, the manufacturing difficulty of the tip housing 11 is greatly reduced, and the manufacturing yield of the tip housing 11 is improved. Furthermore, by positioning the second separator 117 between the first circuit board 122 and the instrument channel tube 13, the side of the second separator 117 proximal to the instrument channel tube 13 conforms to the outer shape of the instrument channel tube 13. Thus, on the one hand, the second separator 117 serves as a radial limiter for the instrument channel tube 13 and the imaging module 12, thereby improving the assembly accuracy of the instrument channel tube 13 and the imaging module 12, and thus enhancing the reliability of the tip structure 10. Furthermore, the provision of the second separator 117 facilitates sealing the gap between the instrument channel tube 13 and the tip housing 11, thereby improving the sealing reliability of the tip structure 10.

[0043] like Figure 1 and Figure 4 As shown, in some embodiments, the tip head structure 10 also includes a sensor assembly 14; the tip shell 11 is also provided with a third accommodating cavity 118 that penetrates along its own axial direction, the third accommodating cavity 118 is arranged in parallel with the first accommodating cavity 111, and the sensor assembly 14 is passed through the third accommodating cavity 118.

[0044] It is understood that the sensor assembly 14 can be a temperature sensor that can be used to measure the temperature in the body cavity, or a pressure sensor that can be used to measure the pressure in the body cavity.

[0045] like Figures 1 to 4 As shown, in some embodiments, the tip head structure 10 further includes a first annular connecting portion 15; the first annular connecting portion 15 is connected to the proximal end of the tip shell 11 and extends axially along the tip shell 11; the first annular connecting portion 15 is used to connect to the snake bone.

[0046] Therefore, by providing the first annular connecting portion 15 , the connection between the tip head structure 10 and the snake bone can be facilitated.

[0047] like Figure 1 As shown, in some embodiments, a notch 151 is formed on the side wall of the first annular connecting portion 15 corresponding to the second accommodating cavity 116 .

[0048] Therefore, the side wall thickness corresponding to the notch 151 can be given to the instrument channel tube 13, and the distal end of the instrument channel tube 13 can be tilted toward the side of the notch 151 and then inserted into the first accommodating cavity 111. The instrument channel tube 13 can be offset toward the outside of the tip shell 11 to ensure a safe distance between the instrument channel tube 13 and the imaging module 12, thereby improving the reliability of the tip head structure 10.

[0049] like Figure 1 and Figure 2 As shown, in some embodiments, a clamping portion 152 is provided on the outer peripheral wall of the first annular connecting portion 15, and the clamping portion 152 is used to fix the snake bone on the first annular connecting portion 15; a positioning piece 153 is also provided on the outer peripheral wall of the first annular connecting portion 15, and the positioning piece 153 is used to align the snake bone.

[0050] Therefore, by arranging the clamping portion 152 and the alignment member 153 on the outer peripheral wall of the first annular connecting portion 15, the alignment connection between the tip head structure 10 and the snake bone can be facilitated, thereby improving the connection stability between the tip head structure 10 and the snake bone.

[0051] like Figure 1 、 Figure 2 and Figure 4 As shown, in a specific example, the clamping portion 152 can be a columnar protrusion that can be engaged with the clamping hole on the snake bone. The end of the clamping portion 152 is provided with a guide slope 1521, which is used to guide the clamping portion 152 into the clamping hole. The number of clamping portions 152 can be multiple, and the multiple clamping portions 152 are spaced along the circumference of the first annular connecting portion 15. This not only facilitates the connection between the tip head structure 10 and the snake bone, but also helps to disperse the stress at the connection, improving the circumferential connection stability between the tip head and the snake bone.

[0052] like Figure 2 and Figure 4 As shown, in a specific example, the positioning piece 153 can be a strip-shaped protrusion, and the snake bone can be provided with a strip-shaped groove that matches the strip-shaped protrusion. In this way, when installing the snake bone, the installer can install the snake bone according to the strip-shaped protrusion and the strip-shaped groove, which can improve the installation efficiency and installation accuracy.

[0053] In this way, on the one hand, the connection between the tip head structure 10 and the snake bone is facilitated, and on the other hand, it is beneficial to disperse the stress at the connection and improve the circumferential connection stability between the tip head and the snake bone.

[0054] like Figures 1 to 4As shown, in some embodiments, the tip head structure 10 also includes a second annular connecting portion 16, which connects the tip shell 11 and the first annular connecting portion 15; the outer diameter of the second annular connecting portion 16 is smaller than the outer diameter of the tip shell 11, and the outer diameter of the second annular connecting portion 16 is larger than the outer diameter of the first annular connecting portion 15.

[0055] In this way, radial space can be reserved for the installation and sealing of the snake bone, so that the outer diameter of the snake bone connected to the tip head structure 10 and after sealing can be basically the same as the outer diameter of the tip head structure 10, so that the outer walls of the snake bone and the tip head structure 10 have a smooth transition, thereby improving the flatness of the connection position between the tip head structure 10 and the snake bone, and thus avoiding damage to human organs and tissues when entering the human body.

[0056] It should be noted that the tip housing 11 , the first annular connecting portion 15 and the second annular connecting portion 16 may be an integral injection-molded structure.

[0057] like Figure 3 As shown, in some embodiments, the imaging module 12 further includes a second circuit board 123 . The second circuit board 123 is disposed through the first annular connecting portion 15 , and the second circuit board 123 is connected to the first circuit board 122 .

[0058] Therefore, by providing the second circuit board 123 and connecting the second circuit board 123 to the first circuit board 122 , the electrical connection between the imaging module 12 and other devices can be facilitated.

[0059] In a second aspect, an embodiment of the present application provides an endoscope, comprising the tip structure 10 of any of the above embodiments, thereby improving the reliability of the endoscope.

[0060] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A tip structure, characterized in that: include: A front end housing is provided with a first accommodating cavity extending axially therethrough; a mounting hole is provided on a side wall of the front end housing corresponding to the first accommodating cavity, and a side cover is provided at the mounting hole; An imaging module includes an imaging module and a first circuit board electrically connected to each other, the first circuit board is arranged in the first accommodating cavity and corresponds to the mounting hole; the imaging module is located in the first accommodating cavity and is arranged near the far end of the front shell.

2. The tip structure according to claim 1, characterized in that: Both sides of the side cover are provided with latching tongues, and the side wall of the front end shell is provided with latching grooves adapted to the latching tongues, and the latching tongues are inserted into the latching grooves.

3. The tip structure according to claim 1, characterized in that: The imaging module includes a camera and a light source arranged in parallel; A first partition is provided in the first accommodating cavity, and the first partition is located between the camera and the light source.

4. The tip structure according to claim 1, characterized in that: The tip structure also includes an instrument channel tube; The front end shell is further provided with a second accommodating cavity which penetrates along its own axial direction. The second accommodating cavity is arranged in parallel with the first accommodating cavity, and the instrument channel tube is passed through the second accommodating cavity.

5. The tip structure according to claim 4, characterized in that: The first accommodating cavity and the second accommodating cavity are in communication; A second partition is provided in the second accommodating cavity. The second partition is located between the first circuit board and the instrument channel tube. A side of the second partition close to the instrument channel tube is adapted to the outer shape of the instrument channel tube.

6. The tip structure according to claim 1, characterized in that: The tip structure also includes a sensor assembly; The front end shell is further provided with a third accommodating cavity which penetrates along its own axial direction. The third accommodating cavity is arranged in parallel with the first accommodating cavity, and the sensor component is arranged in the third accommodating cavity.

7. The tip structure according to claim 4, characterized in that: The tip head structure also includes a first annular connecting portion; the first annular connecting portion is connected to the proximal end of the tip shell and extends along the axial direction of the tip shell; the first annular connecting portion is used to connect to the snake bone.

8. The tip structure according to claim 7, characterized in that: A notch is provided on the side wall of the first annular connecting portion corresponding to the second accommodating cavity; and / or A clamping portion is provided on the outer peripheral wall of the first annular connecting portion, and the clamping portion is used to fix the snake bone on the first annular connecting portion; a positioning piece is also provided on the outer peripheral wall of the first annular connecting portion, and the positioning piece is used to align the snake bone.

9. The tip structure according to claim 7, characterized in that: The tip head structure further includes a second annular connecting portion, the second annular connecting portion connecting the tip shell and the first annular connecting portion; the outer diameter of the second annular connecting portion is smaller than the outer diameter of the tip shell, and the outer diameter of the second annular connecting portion is larger than the outer diameter of the first annular connecting portion; and / or The imaging module further includes a second circuit board, which is passed through the first annular connecting portion and is connected to the first circuit board.

10. An endoscope, characterized in that: The invention comprises the tip structure according to any one of claims 1 to 9.

Images