End head of endoscope tube, endoscope tube and endoscope

Abstract

The utility model provides an endoscope tube end, an endoscope tube and an endoscope, the endoscope tube end is used for being installed at the far end of an endoscope tube main body, the endoscope tube main body comprises an inner tube and an outer tube arranged outside the inner tube in a sleeving mode, an annular channel is formed between the inner tube and the outer tube, the endoscope tube end comprises an end body, the end body is provided with a first channel, and the first channel is used for being communicated with the annular channel; a mounting groove and a flow guide hole are formed in the front end, far away from the endoscope tube body, of the first channel and communicated with the first channel; the camera and the at least one light source are arranged in the mounting groove, and the light source is arranged on the periphery of the camera; and the lens body is hermetically connected to the front end of the mounting groove. The endoscope tube end head has good sealing performance.

Description

Technical Field

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

[0002] Endoscopes such as hysteroscopes, cystoscopes, gastroscopes, colposcopes, bronchoscopes, laparoscopes, colonoscopes, and laparoscopy are inserted from outside the body through natural cavities into the human body to examine certain parts of the body.

[0003] An endoscope typically consists of a tube and an operating handle. The tube is mounted on the handle, and a camera and light source are typically mounted on the end of the tube away from the handle. The light source provides light for the camera to capture images. During use, the doctor grips the operating handle and inserts the tube into the target area within the body. The camera observes the target area and transmits the signal obtained by the camera to an external device electrically connected to the endoscope. This device then displays an image of the target area, helping the doctor understand and assess the condition of the target area.

[0004] However, in existing endoscopes, the sealing performance of the end of the scope tube is poor. Utility Model Content

[0005] In view of the above problems, the embodiments of the present application provide a scope tube end, a scope tube, and an endoscope, wherein the scope tube end has good sealing performance.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a scope tube end cap for mounting to a distal end of a scope tube body. The scope tube body comprises: an inner tube and an outer tube sleeved outside the inner tube, with an annular passage between the inner tube and the outer tube. The scope tube end cap comprises:

[0008] The end body has a first channel, the first channel is used to communicate with the annular channel; the front end of the first channel away from the mirror tube body is provided with a mounting groove and a guide hole, at least the guide hole is connected to the first channel;

[0009] The camera and at least one light source are both disposed in the mounting groove, and the light source is disposed on the periphery of the camera;

[0010] The lens body is sealed and connected to the front end of the mounting groove.

[0011] In one possible embodiment, a collimating area is provided on the inner surface of the lens body, the collimating area is provided corresponding to the light source, and the collimating area covers at least a portion of the light-emitting surface of the light source;

[0012] The inner surface of the lens body is the side surface of the lens body facing the camera.

[0013] In a possible implementation, a plurality of collimating lenses are sequentially arranged in the collimating area from a side of the light source close to the camera to a side of the light source far from the camera;

[0014] The cross section of the collimating lens is an arc-shaped surface convex toward the light source.

[0015] In a possible embodiment, a light distribution surface is provided on the outer surface of the lens body, the light distribution surface is provided corresponding to the light source, and the light distribution surface covers at least a portion of the light emitting surface of the light source;

[0016] The outer surface of the lens body is the surface of the lens body facing away from the camera.

[0017] In a possible implementation, the light distribution surface is concave toward the light source, and the light distribution surface is a smooth curve with a gradually decreasing curvature from the center to the edge of the light distribution surface.

[0018] In a possible implementation, the lens further includes: at least one light-shielding member, which is mounted on the lens body and is located between the light-collecting surface of the camera and the light source.

[0019] In a possible implementation, the shading element includes: a vertical segment extending along the height direction of the lens body.

[0020] In a possible implementation, the shading member further includes: a horizontal segment connected to at least one end of the vertical segment, the horizontal segment is perpendicular to the vertical segment, and the horizontal segment extends toward the camera or the horizontal segment extends toward the light source.

[0021] In a possible implementation, the first light-shielding surface of the light-shielding element is flush with the end surface of the camera.

[0022] In one possible embodiment, the gap between the second light shielding surface of the light shielding member and the end surface of the camera is smaller than a preset distance. In one possible embodiment, the terminal body further has a second channel, and the second channel is used to communicate with the inner tube.

[0023] In a second aspect, an embodiment of the present application provides a mirror tube, comprising a mirror tube body and the above-mentioned mirror tube end head, wherein the mirror tube end head is installed at the distal end of the mirror tube body.

[0024] In a possible embodiment, the mirror tube body includes an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, and an annular channel is formed between the inner tube and the outer tube;

[0025] The cross-sectional shape of the inner tube includes one of a circle, an ellipse and a pear.

[0026] In a third aspect, an embodiment of the present application provides an endoscope, comprising an operating handle and the above-mentioned mirror tube, wherein the proximal end of the mirror tube is mounted on the operating handle, and the distal end of the mirror tube extends away from the operating handle.

[0027] The present application provides a mirror tube end, a mirror tube and an endoscope. The mirror tube end includes a end body and a lens body. The end body has a mounting groove, and the mounting groove defines mounting space for a camera and a light source. In this way, the camera and the light source are installed in the mounting groove, and the assembly process is simple; and the lens body is installed at the front end of the mounting groove, so that the light source and the camera can be encapsulated and have good sealing performance.

[0028] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the scope tube tip, scope tube, and endoscope provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 A schematic structural diagram of an endoscope provided in an embodiment of the present application;

[0031] Figure 2 A partial exploded structural diagram of an endoscope provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of the partial structure of the mirror tube provided in an embodiment of the present application;

[0033] Figure 4 A schematic structural diagram of the mirror tube end provided in an embodiment of the present application;

[0034] Figure 5 A schematic structural diagram of an inner tube cross section provided in an embodiment of the present application;

[0035] Figure 6 A schematic structural diagram of another inner tube cross section provided in an embodiment of the present application;

[0036] Figure 7 A partial cross-sectional view of a mirror tube provided in an embodiment of the present application;

[0037] Figure 8 A partial exploded structural diagram of the mirror tube provided in an embodiment of the present application;

[0038] Figure 9 A partial exploded structural diagram of the lens tube from another perspective provided in an embodiment of the present application;

[0039] Figure 10 A schematic diagram of the structure of the retaining frame provided in an embodiment of the present application;

[0040] Figure 11 A schematic diagram of a portion of the structure of a retainer provided in an embodiment of the present application;

[0041] Figure 12 A schematic structural diagram of the inner side surface of the lens body provided in an embodiment of the present application;

[0042] Figure 13 A schematic structural diagram of the outer side surface of the lens body provided in an embodiment of the present application;

[0043] Figure 14 This is a structural diagram of the relative positions of the light distribution surface and the collimation surface provided in an embodiment of the present application.

[0044] Reference numerals:

[0045] 10-Endoscope;

[0046] 100-mirror tube; 100a-main body; 100b-bent section;

[0047] 110 - mirror tube body; 111 - inner tube; 112 - outer tube; 112a - support portion; 113 - annular channel;

[0048] 120-scope tube end;

[0049] 121 - terminal body; 1211 - first channel; 1212 - second channel; 1213 - mounting groove; 1213a - bottom wall; 1213b - step portion; 1214 - diversion hole; 1215 - camera; 1216 - light source;

[0050] 122- lens body; 1221- collimation area; 1222- light distribution surface;

[0051] 123 - light shielding member; 123a - vertical section; 123b - horizontal section; 1231 - first light shielding surface; 1232 - second light shielding surface;

[0052] 124-holder; 1241-camera mounting portion; 1242-camera mounting port; 1243-light source mounting portion; 125-sensor; 126-circuit board;

[0053] 200 - operating handle; 201 - liquid inlet pipe; 202 - liquid outlet pipe; 210 - operating part; 211 - knob; 220 - gripping part; 230 - image processing device. DETAILED DESCRIPTION

[0054] Endoscopes such as hysteroscopes, cystoscopes, gastroscopes, colposcopes, bronchoscopes, laparoscopes, colonoscopes, and laparoscopy are inserted from outside the body through natural cavities into the human body to examine certain parts of the body.

[0055] An endoscope typically consists of a tube and an operating handle. The tube is mounted on the handle, and a camera and light source are typically mounted on the end of the tube away from the handle. The light source provides light for the camera to capture images. During use, the doctor grips the operating handle and inserts the tube into the target area within the body. The camera observes the target area and transmits the signal obtained by the camera to an external device electrically connected to the endoscope. This device then displays an image of the target area, helping the doctor understand and assess the condition of the target area.

[0056] However, in existing endoscopes, the assembly process of the end of the scope tube is complicated and the sealing performance is poor.

[0057] In order to solve the above problems, the present application provides a mirror tube end, a mirror tube and an endoscope. The mirror tube end includes an end body and a lens body. The end body has a mounting groove, and the mounting groove defines the installation space for the camera and the light source. In this way, the camera and the light source are installed in the mounting groove, and the assembly process is simple. The lens body is installed at the front end of the mounting groove, and the light source and the camera can be encapsulated, which has good sealing performance.

[0058] Figure 1 and Figure 2 This is a schematic diagram of the structure of the endoscope provided in the embodiment of the present application. Figure 1 As shown, an embodiment of the present application provides an endoscope 10, which includes a tube 100 and an operating handle 200. The tube 100 has a proximal end and a distal end at its axial ends. The proximal end of the tube 100 is mounted within the operating handle 200, and the distal end of the tube 100 extends away from the operating handle 200. The operating handle 200 is used for an operator (e.g., a doctor) to hold to control the endoscope 10, and the tube 100 is used to extend into a target area in the human body to observe the target area.

[0059] The distal end of the mirror tube 100 is usually equipped with a camera 1215 (see Figure 4 As shown), light source 1216 (see Figure 4The operating handle 200 includes components such as a camera 1215 and a light source 1216. The camera 1215 is used to observe images of target areas within the body, and the light source 1216 is used to illuminate the target areas so that the camera 1215 can observe clear images. The operating handle 200 includes a fluid path component (not shown) and a circuit component (not shown). The fluid path component is used to allow for the inflow and outflow of liquid within the scope tube 100 to meet the needs of the surgical procedure. The circuit component is used to control the operation of components such as the camera and light source at the distal end of the scope tube 100, as well as to control parameters such as the flow rate and flow rate of the liquid flowing through the fluid path component, thereby enabling the observation of localized microscopic tissue within the body and the aspiration of liquid.

[0060] During a surgical procedure, the scope tube 100 must enter the body, and the operating handle 200 must be held by the operator, potentially contacting the human skin or internal tissues. Furthermore, fluids entering and exiting the body pass through the fluid path components installed in the operating handle 200, and the circuit components installed in the operating handle 200 must be connected to the distal end of the scope tube 100. Therefore, in this embodiment, the endoscope 10 consisting of the scope tube 100 and the operating handle 200 can be used as a disposable component.

[0061] It should be noted that the camera 1215 at the distal end of the scope tube 100 is primarily used to observe the conditions of target areas within the human body and convert the collected optical signals into digital signals. To obtain an image of the target area within the body, the cooperation of the image processing device 230 is often required. The image processing device 230 is used to convert the digital signals obtained by the camera 1215 into image signals for observation by an operator (e.g., a doctor).

[0062] In this embodiment, image processing device 230 includes an image processor and a mainboard. The image processor is typically integrated on the mainboard (not shown), which is electrically connected to camera 1215. The mainboard can also be electrically connected to an external device (e.g., a display). The image processor converts the digital signal captured by camera 1215 into an image signal, which is then transmitted via the mainboard to the external device, allowing the external device to display an image of the target site in the body. This allows the operator to observe a clear, magnified image, facilitating accurate assessment of the condition of the target site in the body.

[0063] Since the image processor is primarily used to convert the digital signals collected by the camera 1215 into image signals, it does not need to enter the body. Furthermore, since the mainboard (including the components mounted thereon, such as the image processor) is relatively expensive, to avoid material waste, the mainboard with the integrated image processor can be provided separately, electrically connected to the endoscope 10, and fixedly mounted within the image processing device 230. Thus, the image processing device 230 can be used as a reusable component. Since the scope tube 100 needs to be inserted into the human body, and the fluid lines within the operating handle 200 flow through the body's bodily fluids, to avoid cross-infection, the scope tube 100 and the operating handle 200 can be used as disposable devices.

[0064] Of course, under the premise that there is enough space in the endoscope 10, a motherboard with an integrated image processor can also be installed in the endoscope 10, and the endoscope 10 can be reused. The outer surfaces of the scope tube 100 and the operating handle 200 are cleaned and disinfected before each use. Alternatively, the endoscope 10 can also be used as a disposable device, which is not limited in this embodiment.

[0065] Continue to refer to Figure 2 As shown, the operating handle 200 of the endoscope 10 may include an operating portion 210 and a gripping portion 220. The mirror tube 100 is mounted on one axial end of the operating portion 210, and the gripping portion 220 is connected to the other axial end of the operating portion 210. The gripping portion 220 is detachably connected to the image processing device 230. The purpose of this arrangement is to facilitate disassembly and assembly, and to facilitate subsequent replacement. Specifically, when the image processing device 230 is connected to the gripping portion 220, the gripping portion 220 wraps around the end of the image processing device 230, providing good sealing. The operating portion 210 is mainly used to support and fix the mirror tube 100. The operating portion 210 may have an installation cavity (not shown in the figure), which is used to arrange the aforementioned fluid path components and circuit components. Specifically, part of the structure of the operating portion 210 and the gripping portion 220 are mainly used for the operator to hold.

[0066] Among them, the gripping portion 220 can be inclined relative to the operating portion 210. In other words, there is an angle between the axial direction of the gripping portion 220 and the axial direction of the operating portion 210 to meet the angle requirements during operation and avoid the operator from touching the patient when holding the endoscope. On the basis of ensuring that the scope tube 100 can be extended into the target part of the body and can move smoothly in the corresponding tissue, the comfort of the operator's grip is guaranteed and the space requirements of the operator for operating the endoscope 10 are met.

[0067] A knob 211 may be installed on the operating portion 210 , and the knob 211 is used to rotate the mirror tube 100 to adjust the orientation of the mirror tube 100 , thereby facilitating observation of different areas of the target site in the body, enabling more complete and comprehensive observation of the target site and improving the operability of the endoscope 10 .

[0068] in addition, Figure 1 The figure shows the liquid inlet pipe 201 and liquid outlet pipe 202 arranged in the operating handle 200. The liquid inlet pipe 201 and liquid outlet pipe 202 are part of the aforementioned fluid path components. The liquid inlet pipe 201 and liquid outlet pipe 202 both extend into the operating portion 210 and communicate with the endoscope tube 100. The liquid inlet pipe 201 is used to transport liquid into the endoscope tube 100 so that the liquid passes through the endoscope tube 100 and enters the target part of the body. The liquid outlet pipe 202 is used to discharge liquid from the endoscope tube 100 so that liquid that flows back into the endoscope tube 100 from the body can be discharged through the liquid outlet pipe 202 to the outside of the endoscope 10.

[0069] Taking the endoscope 10 as a hysteroscope as an example, the liquid inlet tube 201 can be used to transport uterine distension fluid into the scope tube 100. The uterine distension fluid is sprayed into the uterine cavity from the distal end of the scope tube 100. The uterine distension fluid in the uterine cavity can also flow back into the scope tube 100. The uterine distension fluid that flows back into the scope tube 100 is discharged through the liquid outlet tube 202.

[0070] Reference Figure 1 and Figure 2 As shown, in this embodiment, the liquid inlet pipe 201 and the liquid outlet pipe 202 in the operating portion 210 can extend into the grip portion 220, and the liquid inlet pipe 201 and the liquid outlet pipe 202 can extend along the inner wall surface of the grip portion 220 and protrude from the opening at the bottom end of the grip portion 220. In other embodiments, the liquid inlet pipe 201 and the liquid outlet pipe 202 can also extend directly from the operating portion 210 to the outside of the endoscope 10, and this embodiment is not limited to this.

[0071] The scope tube 100 of the endoscope 10 will be described in detail below.

[0072] In this embodiment, refer to Figure 3 As shown, the mirror tube 100 includes a mirror tube body 110 and a mirror tube head 120 . The mirror tube head 120 is installed at the distal end of the mirror tube body 110 .

[0073] Specifically, in this embodiment, the mirror tube body 110 and the mirror tube end 120 are manufactured separately, which reduces the manufacturing difficulty of the mirror tube 100 and saves the manufacturing cost of the mirror tube 100. For example, the mirror tube end 120 and the mirror tube body 110 can be connected by threads, snaps, plugs, or silicone sleeves, etc., which are not limited in this embodiment of the present application.

[0074] Reference Figure 3As shown, in the embodiment, the distal end of the mirror tube 100 is bent to the side of the mirror tube 100, and the mirror tube 100 comprises a main body segment 100a and a curved segment 100b arranged in sequence from the proximal end of the mirror tube 100 to the distal end of the mirror tube 100. The main body segment 100a serves as the main body structure of the mirror tube 100 and occupies most of the length of the mirror tube 100. The mirror tube 100 can extend into the target site in the body mainly by relying on the length provided by the main body segment 100a. The curved segment 100b is located on the side of the main body segment 100a away from the operating part 210, and the curved segment 100b makes the mirror tube 100 have a curved distal end.

[0075] Specifically, the mirror tube 100 can have two structures: the first structure is that the mirror tube main body 110 has the main body segment 100a and the curved segment 100b, and the mirror tube tip 120 is arranged at the end of the curved segment 100b away from the main body segment 100a; the second structure is that the mirror tube main body 110 is the main body segment 100a, and the mirror tube tip 120 is the curved segment 100b. In the embodiment, the mirror tube 100 is taken as the second structure for illustration.

[0076] The main body segment 100a of the mirror tube 100 can extend along a straight line, and the extension direction of the main body segment 100a can be parallel to the axial direction of the operating part 210 of the operating handle 200, for example, the main body segment 100a can be coaxially arranged with the operating part 210. The curved segment 100b has an included angle with the main body segment 100a, so that the mirror tube 100 has a curved distal end.

[0077] By making the mirror tube 100 have a curved distal end, on the one hand, the mirror tube 100 can adapt to different structures of the cavity in the body to increase the application range of the endoscope 10. Taking the endoscope 10 as a uterine cavity scope for example, the curved distal end of the mirror tube 100 can better match the structure of the position where the cervix meets the vagina.

[0078] On the other hand, the activity range of the curved segment 100b is increased. When the mirror tube 100 is rotated, the curved segment 100b has a larger area of the circumferential surface that rotates. For the camera 1215 installed at the end of the curved segment 100b, the field of view range of the camera 1215 is increased, the orientation of the camera 1215 can be adjusted according to the needs, which is conducive to comprehensive and perfect observation of the situation of the target site.

[0079] The included angle between the curved segment 100b and the main body segment 100a of the mirror tube 100 can be between 150°-175°, in other words, the curved segment 100b can be slightly inclined to the main body segment 100a, for example, the included angle between the curved segment 100b and the main body segment 100a can be 155°, 160°, 165°, 170°, etc. The length of the curved segment 100b can be between 10mm-35mm, for example, the length of the curved segment 100b can be 15mm, 20mm, 25mm, etc.

[0080] By slightly tilting the curved section 100b relative to the main section 100a and controlling the length of the curved section 100b within an appropriate range, the field of view of the camera 1215 can cover the operating range of the surgical instrument after it is extended. If the tilt of the curved section 100b is too large and the optical axis of the camera 1215 is not aligned with the axis of the main section 100a, for example, if the optical axis of the camera 1215 is parallel to the tilt of the curved section 100b, the operating position of the instrument may not be visible within the field of view of the camera 1215. Furthermore, if the length of the curved section 100b is too long, even if the optical axis of the camera 1215 is aligned with the axis of the main section 100a, the operating position of the instrument may still be lost.

[0081] The main section 100 a and the curved section 100 b of the lens tube 100 can have an arc-shaped transition, so that the entire outer wall surface of the lens tube 100 is smooth and sharp protrusions are avoided. This prevents discomfort to the user when the lens tube 100 is inserted into the body. In addition, stress concentration in the lens tube 100 is avoided, thereby ensuring the structural strength and reliability of the lens tube 100.

[0082] Furthermore, in this embodiment, the outer diameter of the tube 100 can be maintained at approximately the same lengthwise position. This ensures good overall consistency of the tube 100 and maintains a sufficient cross-sectional area in the curved section 100b of the tube 100, thereby enhancing the structural strength of the tube 100 and preventing localized stress concentration. Furthermore, the tube 100 can be adapted to various tissues and cavities within the body, further enhancing its adaptability.

[0083] As an optional embodiment, the material of the mirror tube 100 is selected from titanium alloy. The purpose of this setting is that the titanium alloy has high strength and corrosion resistance, and good biocompatibility, and is suitable for the working environment of the endoscope 10.

[0084] The following is a detailed description of the scope tube end 120 in this embodiment. In this embodiment, the scope tube end 120 is disposed at the distal end of the scope tube body 110. The scope tube body 110 includes an inner tube 111 and an outer tube 112. The outer tube 112 is sleeved over the inner tube 111, with one inner wall surface of the outer tube 112 abutting against the outer wall surface of the inner tube 111. A gap is formed between the other inner wall surface of the outer tube 112 and the outer wall surface of the outer tube 112 to form an annular passage 113.

[0085] Specifically, the cross-sectional shape of the inner tube 111 may be an ellipse, such as Figure 5 As shown, the purpose of such a configuration is to allow enough space for the surgical instrument to pass through, and when the surgical instrument is inserted, there is a larger gap around the surgical instrument for fluid to flow.

[0086] As another optional embodiment, the cross-section of the inner tube 111 is pear-shaped, see Figure 6 As shown, specifically, a larger arc segment and a smaller arc segment are respectively provided at the opposite ends of the cross section of the inner tube 111, and the two arc segments are interconnected to increase the space for fluid flow, so that surgical instruments and fluid can pass smoothly in the inner tube 111.

[0087] In some possible implementations, the cross-sectional shape of the inner tube 111 is circular, which has strong applicability and can allow most instruments to pass through. The circle has good symmetry, which reduces the friction and resistance of the instrument when passing through the inner tube 111 and improves operational efficiency.

[0088] In this embodiment, refer to Figures 7 to 9 As shown, the mirror tube end 120 includes: an end body 121 and a lens body 122. The end body 121 has a first channel 1211 and a second channel 1212. The first channel 1211 is used to communicate with the annular channel 113, and the second channel 1212 is used to communicate with the inner tube 111. A guide hole 1214 connected to the first channel 1211 is also provided at the front end of the first channel 1211 away from the mirror tube body 110.

[0089] In this embodiment, one of the inner tube 111 and the outer tube 112 (annular channel 113) can be used as a liquid inlet channel, and the other as a liquid outlet channel. The liquid inlet channel is connected to the liquid inlet tube 201 in the operating handle 200, and the liquid outlet channel is connected to the liquid outlet tube 202 in the operating handle 200. Liquid enters the liquid inlet channel of the scope tube 100 from the liquid inlet tube 201, and the liquid in the liquid inlet channel flows out from the distal end of the scope tube 100 through the guide hole 1214 connected to the first channel 1211 and enters the target part in the body. The liquid in the body flows from the distal end of the scope tube 100 through the inner tube 111 to the liquid outlet channel of the scope tube 100, and then flows out of the endoscope 10 through the liquid outlet tube 202.

[0090] For details, see Figure 9 As shown, the guide hole 1214 is located at the upper end of the mounting groove 1213. This arrangement can avoid blocking the field of view of the camera 1215, ensuring that the operator (e.g., a doctor) can directly and clearly observe the target area of ​​the human body during the operation. In addition, the guide hole 1214 is arranged on the upper side of the mounting groove 1213 to more effectively guide the flow of liquid.

[0091] It should be noted that the outer tube 112 has a support portion 112a, and the support portion 112a has different forms to form different first channel 1211 structures together with the end head body 121. The following is an explanation in conjunction with different embodiments.

[0092] In some possible implementation manners, the support portion 112a is a circular plane, and the first channel 1211 is formed by the structure of the mirror tube end head 120 itself, which is convenient for disassembly and assembly.

[0093] In some other possible implementation manners, as shown in Figure 8 and Figure 9 , the support portion 112a is a semicircular arc structure extending in a first direction, where the first direction is the “X” direction in Figure 8 . Part of the structure of the end head body 121 is arranged on the inner surface of the semicircular arc structure, so that the end head body 121 and the outer tube 112 enclose the first channel 1211. This arrangement can improve the strength of the mirror tube end head 120 and ensure the smoothness of liquid flow.

[0094] It can be understood that the shape of the support portion 112a is not limited and can be selected according to actual conditions, as long as the first channel 1211 structure can be formed. In this embodiment, the support portion 112a is taken as a semicircular arc structure for example.

[0095] In this embodiment, as shown in Figure 8 and Figure 9 , the first channel 1211 is provided with a mounting groove 1213 away from the front end of the mirror tube body 110, and the mounting groove 1213 is used to place a camera 1215 and a light source 1216.

[0096] As an optional implementation manner, the mounting groove 1213 can be in communication with the first channel 1211, so that a cable connected with the camera 1215 and the light source 1216 is placed in the first channel 1211.

[0097] As another optional implementation manner, as shown in Figure 7 , the mounting groove 1213 is not in communication with the first channel 1211, that is, the mounting groove 1213 is an independent module, and the mounting groove 1213 has a bottom wall 1213a to separate the mounting groove 1213 from the first channel 1211. The camera 1215 and the light source 1216 are placed in the mounting groove 1213. Specifically, the camera 1215 and the light source 1216 are connected with an image collector in a wireless connection manner. In this way, the use of cables is reduced, the operation is facilitated, and the risk of infection and damage is reduced.

[0098] In this embodiment, as shown in Figure 8 and Figure 9 , a retainer 124 is arranged in the mounting groove 1213, and the retainer 124 is used to fix the camera 1215 and the light source 1216 to prevent the camera 1215 and the light source 1216 from shaking during operation.

[0099] Specifically, refer to Figure 10 and Figure 11 As shown, the holder 124 includes: a camera mounting portion 1241, the camera mounting portion 1241 has a camera mounting opening 1242, wherein the camera mounting opening 1242 is an arc with an opening along the third direction, wherein the third direction is Figure 11 The camera 1215 is snap-fitted into the camera mounting opening 1242 .

[0100] In this embodiment, the holder 124 further includes a light source mounting portion 1243, which is connected to the outside of the camera mounting portion 1241, and the light source 1216 is mounted between the inner side wall of the light source mounting portion 1243 and the outer side wall of the camera mounting portion 1241, see Figure 10 and Figure 11 shown.

[0101] Specifically, the holder 124 also includes a sensor 125 and a circuit board 126. The circuit board 126 is connected to the sensor 125, which receives light and converts it into electrical signals. The circuit board 126 is also connected to the light source 123 to control the brightness, color temperature, and on / off state of the light source 123 to provide an optimal lighting effect. Specifically, the circuit board 126 is also provided with a communication interface for external devices, facilitating connection to external displays and improving operational convenience.

[0102] In this embodiment, light source 1216 is disposed on the periphery of camera 1215. Light source 1216 is used to provide illumination for camera 1215 in dim light conditions. There can be multiple light sources 1216, with multiple light sources 1216 spaced apart along the circumference of camera 1215. Alternatively, there can be only one light source 1216, which is disposed around camera 1215. In this embodiment, there is no limit on the number of light sources 1216, as long as they can provide illumination.

[0103] Exemplarily, the type of light source 1216 can be an LED lamp, a halogen lamp, an incandescent lamp, or a functional lamp such as an ultraviolet lamp, an infrared lamp, etc. In this embodiment, the light source 1216 is described as an LED lamp.

[0104] In this embodiment, the number of light sources 1216 is two, and the two light sources 1216 are spaced apart and arranged at the periphery of the camera 1215. The inner surface of the lens body 122 is provided with a collimating area 1221, such as Figure 12 As shown, the collimating area 1221 is set corresponding to the light source 1216. Based on the principle of refraction, the light from various angles of the light source 1216 is focused when entering the collimating area 1221 to reduce the emission angle of the light, thereby improving the imaging effect.

[0105] It should be noted that the lens body 122 is sealed and connected to the front end of the mounting groove 1213, wherein the groove wall of the front end of the mounting groove 1213 extends with a step portion 1213b, and the lens body 122 is connected to the step portion 1213b, see Figure 7 shown.

[0106] Among them, the lens body 122 and the mounting groove 1213 can be a split structure, and the lens body 122 is assembled at the front end of the mounting groove 1213 and can be disassembled for easy subsequent maintenance; or, the lens body 122 can also be integrally formed at the front end of the mounting groove 1213. This one-piece molding process has higher strength.

[0107] Illustratively, the light source 1216 may emit light toward the front end face of the mirror tube end 120 or toward the side face of the mirror tube end 120 . In this embodiment, the light source 1216 emitting light toward the front end face of the mirror tube end 120 is used as an example for description.

[0108] Specifically, the light emitted by the light source 1216 is divided into two parts. One part serves as the main light source and illuminates the target area of ​​the human body to provide illumination. The other part of the light serves as stray light and enters the camera 1215 through refraction, interfering with the imaging effect and reducing the imaging quality. Therefore, in order to prevent the aforementioned stray light from entering the camera 1215, a collimation area 1221 should be provided at least at the edge area of ​​the light source 1216 that is prone to stray light, so as to change the optical path of the stray light. Figure 12 shown.

[0109] As another optional embodiment, collimation zones 1221 are provided throughout the entire area of ​​light source 1216 to ensure that all light emitted by light source 1216 is transmitted along a predetermined path to the target area. Specifically, the area of ​​collimation zones 1221 is also affected by the type of light source 1216. Point light sources generally require smaller collimation zones, while surface light sources may require larger collimation zones. Therefore, the area of ​​collimation zones 1221 should be determined based on actual conditions.

[0110] In this embodiment, continue to refer to Figure 12 As shown, the inner surface of the lens body 122 is the side surface of the lens body 122 facing the camera 1215, so that the collimation area 1221 is set at the initial position where the light enters the lens body 122, so as to focus the scattered light before entering the optical system, improve the utilization rate of the light, and reduce the scattering and diffraction of the light.

[0111] Among them, multiple collimating lenses are set closely to ensure that the light can be effectively collimated when passing through each collimating lens, and to ensure that there is no gap between two adjacent collimating lenses, to prevent uncollimated stray light from being refracted to other areas, forming light spots, interfering with the imaging effect, and increasing the difficulty of surgery.

[0112] In this embodiment, the cross section of the collimating lens is an arc-shaped surface convex toward the light source 1216 , which can focus light from all directions and has a good collimating effect.

[0113] In this embodiment, refer to Figure 12 and Figure 13 As shown, the lens tube end 10 further includes: a light shielding member 123, which is mounted on the lens body 122 and is located between the light collecting surface of the camera 1215 and the light source 1216 to prevent stray light from entering the camera 1215, thereby avoiding glare and light spots, thereby improving the imaging quality. Figure 8 Specifically, the shading member 123 can be bonded to the lens body 122 by glue, or can be integrally formed with the lens body 122.

[0114] In this embodiment, the lens body 122 is provided with a mounting hole, into which the light shielding member 123 is snapped to secure the lens. The light shielding member 123 can be made of black resin. This is because black resin has high light absorption, effectively reducing reflected light and stray light, thereby improving image quality. Furthermore, the resin material is lightweight and easy to handle. Alternatively, the light shielding member 123 can be made of a metal material, such as aluminum alloy. The aluminum alloy surface can also be anodized to reduce reflections. This embodiment does not impose any restrictions on the material of the light shielding member 123; the specific material can be determined based on actual circumstances.

[0115] In order to block the stray light emitted by the camera 1215 to the greatest extent possible without affecting the normal operation of the camera 1215, the position of the light shielding member 123 should be reasonably arranged. Specifically, in this embodiment, the projection of the first light shielding surface 1231 of the light shielding member 123 along the first direction does not overlap with the camera 1215, so that the illumination light emitted by the camera 1215 can be emitted through the light-transmitting surface of the lens body 122. Figure 12 It should be noted that the first light shielding surface 1231 of the light shielding member 123 is a side surface of the light shielding member 123 facing the central axis of the camera 1215.

[0116] In this embodiment, see Figure 14As shown, the gap between the second light shielding surface 1232 of the light shielding member 123 and the end surface of the camera 1215 is less than a preset distance, so that the light shielding member 123 closely abuts the camera 1215, preventing the occurrence of light leakage phenomenon, thereby affecting the imaging effect.

[0117] In order to prevent stray light emitted by the light source 1216 from entering the camera 1215, the shape of the light shielding member 123 should not affect the field of view of the endoscope 10, ensure that the operator can clearly observe the human target area, and effectively shield stray light from different directions to avoid its entering the camera 1215 and affecting the imaging quality. Specifically, the shape of the light shielding member 123 can be "Z" type, "C" type, etc. In this embodiment, this is not limited, as long as it can shield the stray light emitted by the light source 1216.

[0118] Referring to Figure 12 In this embodiment, the shape of the light shielding member 123 is "Z" type. Specifically, the light shielding member 123 includes a vertical segment 123a extending along the height direction of the lens body 122, wherein the height direction of the lens body 122 is the third direction, and the size of the vertical segment 123a along the third direction is greater than the size of the light source 1216 along the third direction, so as to shield the stray light of the light source 1216 along the third direction. Specifically, referring to Figure 12 As shown, the third direction is the "Z" direction in Figure 12 The light shielding member 123 also includes a horizontal segment 123b connected to one end of the vertical segment 123a, the horizontal segment 123b is perpendicular to the vertical segment 123a, and the horizontal segment 123b extends towards the camera 1215 to absorb stray light near one end of the camera 1215.

[0119] As another optional embodiment, the horizontal segment 123b extends towards the light source 1216 to shield the stray light of the light source 1216 along the second direction, prevent the stray light from entering the inside of the camera 1215, reduce the halo, and improve the imaging quality, wherein the second direction is the "Y" direction in Figure 12

[0120] In this embodiment, in the case where the space is sufficient, only one light shielding member 123 can be provided, which surrounds the camera 1215 to shield the stray light outside the camera 1215, or two annular light shielding members 123 are provided, which respectively surround the two light sources 1216 to shield the stray light in the edge region of the light source 1216.

[0121] ​Since the field of view of the camera 1215 in the vertical and horizontal directions is very different, in order to ensure that there is no change in light intensity at the intersection of the light from multiple light sources 1216 set on the periphery of the camera 1215, it is necessary to add a light distribution structure near the camera 1215. This embodiment is limited by the spatial structure between the lens body 122 and the light source 1216. Therefore, the light distribution structure is integrated into the lens body 122.

[0122] Specifically, refer to Figure 14 As shown, a light distribution surface 1222 is provided on the outer surface of the lens body 122, and the light distribution surface 1222 is provided corresponding to the light source 1216, and the light distribution surface 1222 covers at least a part of the light-emitting surface of the light source 1216, so that the light beam collimated by the collimation area 1221 can be evenly emitted through the light distribution surface 1222, so that the light is evenly irradiated in the target area, reducing light spots and dark areas.

[0123] Among them, reference Figure 14 As shown, the outer surface of the lens body 122 is the side surface of the lens body 122 facing away from the camera 1215, which can more directly and evenly distribute light to the target area.

[0124] In this embodiment, refer to Figure 14 As shown, the light distribution surface 1222 is concave toward the light source 1216 , so that the light collimated in the lens body 122 can be slightly diverged outwards under the refraction of the light distribution surface 1222 to expand the illumination field of the light source 1216 .

[0125] In this embodiment, the light distribution surface 1222 is a smooth curve with a gradually decreasing curvature from the center to the edge of the light distribution surface 1222, so that the light is evenly diffused when passing through the light distribution surface 1222, reducing light spots and dark areas, and providing a more uniform lighting effect.

[0126] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0127] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mirror tube end cap, for mounting on the distal end of a mirror tube body (110), wherein the mirror tube body (110) comprises an inner tube (111) and an outer tube sleeved outside the inner tube (111), and an annular passage (113) is provided between the inner tube (111) and the outer tube (112), characterized in that: The mirror tube end (120) comprises: The end head body (121) has a first channel (1211), the first channel (1211) is used to communicate with the annular channel (113); the front end of the first channel (1211) away from the mirror tube body (110) is provided with a mounting groove (1213) and at least one guide hole (1214), and the at least one guide hole (1214) is communicated with the first channel (1211); A camera (1215) and at least one light source (1216) are both disposed in the mounting groove (1213), and the light source (1216) is disposed on the periphery of the camera (1215); The lens body (122) is sealed and connected to the front end of the mounting groove (1213).

2. The mirror tube end cap according to claim 1, wherein: The inner surface of the lens body (122) is provided with a collimating area (1221), the collimating area (1221) is provided corresponding to the light source (1216), and the collimating area (1221) covers at least a portion of the light-emitting surface of the light source (1216); The inner surface of the lens body (122) is a side surface of the lens body (122) facing the camera (1215).

3. The mirror tube end cap according to claim 2, wherein: A plurality of collimating lenses are sequentially arranged in the collimating area (1221) from a side of the light source (1216) close to the camera (1215) to a side of the light source (1216) far from the camera (1215); The cross section of the collimating lens is an arc-shaped surface convex toward the light source (1216).

4. The mirror tube end cap according to any one of claims 1 to 3, characterized in that: The outer surface of the lens body (122) is provided with a light distribution surface (1222), the light distribution surface (1222) is provided corresponding to the light source (1216), and the light distribution surface (1222) covers at least a portion of the light-emitting surface of the light source (1216); The outer surface of the lens body (122) is a surface on one side of the lens body (122) facing away from the camera (1215).

5. The mirror tube end cap according to claim 4, characterized in that: The light distribution surface (1222) is recessed toward the light source (1216), and from the center of the light distribution surface (1222) to the edge of the light distribution surface (1222), the light distribution surface (1222) is a smooth curve with a gradually decreasing curvature.

6. The mirror tube end cap according to any one of claims 1 to 3, characterized in that: Also includes: At least one light shielding member (123) is mounted on the lens body (122) and is disposed between the light collecting surface of the camera (1215) and the light source (1216).

7. The mirror tube tip according to claim 6, characterized in that: The light shielding member (123) comprises: The vertical section (123a) extends along the height direction of the lens body (122).

8. The mirror tube tip according to claim 7, wherein: The light shielding member (123) further comprises: The horizontal section (123b) is connected to at least one end of the vertical section (123a), the horizontal section (123b) is perpendicular to the vertical section (123a), and the horizontal section (123b) extends toward the camera (1215) or the horizontal section (123b) extends toward the light source (1216).

9. The mirror tube tip according to claim 6, wherein: The first light shielding surface (1231) of the light shielding member (123) is flush with the end surface of the camera (1215).

10. The mirror tube tip according to claim 6, wherein: The gap between the second light-shielding surface (1232) of the light-shielding member (123) and the end surface of the camera (1215) is smaller than a preset distance.

11. The mirror tube tip according to any one of claims 1 to 3, characterized in that: The end head body (121) further has a second channel (1212), and the second channel (1212) is used to communicate with the inner tube (111).

12. A mirror tube, characterized in that: The invention comprises a mirror tube body (110) and a mirror tube end head (120) according to any one of claims 1 to 11, wherein the mirror tube end head (120) is installed at the distal end of the mirror tube body (110).

13. The mirror tube according to claim 12, characterized in that: The mirror tube body (110) comprises an inner tube (111) and an outer tube (112), wherein the outer tube (112) is sleeved outside the inner tube (111), and an annular channel (113) is provided between the inner tube (111) and the outer tube (112); The cross-sectional shape of the inner tube (111) includes one of a circular shape, an elliptical shape, and a pear shape.

14. An endoscope, characterized in that: The invention comprises an operating handle (200) and a mirror tube (100) according to claim 12 or 13, wherein the proximal end of the mirror tube (100) is mounted on the operating handle (200), and the distal end of the mirror tube (100) extends in a direction away from the operating handle (200).

Images