End cap of endoscope with optimized visual field and endoscope thereof
By designing an end cap with an optimized field of view, the problem of stone fragments and free tissue blocking the view after lithotripsy is solved, real-time image acquisition and clear field of view of the instrument position are achieved, and the difficulty of instrument intubation and the risk of bleeding are reduced.
Patent Information
- Application Number
- CN202422711855.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing end cap structure of endoscopes causes stone fragments and free tissue after lithotripsy to block the view, and the outlet of the choledochoscope channel is outside the field of view of the lens, increasing the difficulty of instrument intubation and the risk of bleeding.
An end cap of an endoscope with an optimized field of view is designed, wherein a camera module is located in a non-instrument channel area, an instrument channel outlet is located in the instrument channel area and is higher than one side of the camera module to form an obtuse angle, an obtuse angle is formed between the instrument channel area and the non-instrument channel area, and the instrument channel outlet is located within the image acquisition range of the camera module. A guide portion and multiple flushing channels are provided to facilitate a clear field of view and instrument position control.
It achieves real-time image acquisition of the instrument position, avoids the obstruction of vision by gravel and free tissue, reduces the difficulty of instrument intubation and the risk of bleeding, and ensures clear shooting effects.
Smart Images
Figure CN223429516U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biliary and pancreatic imaging, in particular to an end cap of an endoscope with optimized field of view and an endoscope thereof. Background Art
[0002] In the field of bile and pancreatic duct imaging, in ERCP (endoscopic retrograde cholangiopancreatography), electrohydraulic lithotripsy and visual biopsy are two important steps, which are used to treat bile duct stones and diagnose bile duct lesions, respectively. Electrohydraulic lithotripsy and visual biopsy need to be performed under direct vision of the cholangioscope, but in clinical use, it was found that there are two problems with the existing end cap structure: first, the stone fragments and free tissue after lithotripsy easily block the line of sight, and the flushing function cannot clear the field of vision, affecting the doctor's observation and judgment; second, the outlet of the cholangioscope channel is outside the field of view of the lens, and the position of the instrument cannot be obtained in time through the cholangioscope image when it is passed out. When blind insertion is performed, the instrument may damage the bile duct wall, causing bleeding risks. Currently, most instruments are preset, which increases the difficulty of intubation. Utility Model Content
[0003] The main purpose of the utility model is to propose an end cap of an endoscope with optimized field of view and an endoscope thereof, aiming to solve the problem that the existing end cap structure easily causes stone fragments and free tissue to block the line of sight, and the outlet of the biliary sub-scope channel is outside the field of view of the lens.
[0004] To achieve the above objectives, the present invention provides an endoscope end cap with optimized field of view, comprising:
[0005] The end cap body has a proximal end and a distal end relative to each other, the distal end is arranged corresponding to the lesion to be detected, and the distal end surface is provided with an instrument channel area and a non-instrument channel area;
[0006] A camera module is provided on the end cap body, and an image acquisition end of the camera module is located in the non-instrument channel area;
[0007] An instrument channel is provided on the end cap body, wherein the outlet end of the instrument channel is located in the instrument channel area;
[0008] Among them, the side of the instrument channel area away from the image acquisition end of the camera module is higher than the side thereof close to the image acquisition end of the camera module, so that an obtuse angle is formed between the instrument channel area and the non-instrument channel area.
[0009] In one embodiment, the end face of the outlet end of the instrument channel away from the camera module is higher than the end face close to the camera module, and the end face of the outlet end of the instrument channel away from the camera module is horizontally arranged, and the end face close to the camera module is inclined.
[0010] In an embodiment, a guide part is arranged on the inner wall of the instrument channel exit and is inclined to the image acquisition end of the camera module.
[0011] In an embodiment, the guide part is arranged on the inner wall of the instrument channel exit away from the camera module.
[0012] In an embodiment, the distal end face is further provided with a transparent light exit area, the proximal end is provided with a mounting groove extending to the light exit area, the light exit area constitutes the groove bottom of the mounting groove, and the mounting groove is used for mounting the illumination device.
[0013] In an embodiment, the light exit area is located between the instrument channel area and the non-instrument channel area, there are at least two light exit areas, and a plurality of light exit areas are distributed on both sides of the camera module, and each light exit area corresponds to an illumination device.
[0014] In an embodiment, the end cap body has a distal end section corresponding to the distal end, and the cross-sectional diameter of the distal end section gradually decreases in the direction extending to the distal end.
[0015] In an embodiment, a flushing channel is further arranged on the end cap body, and the outlet end of the flushing channel is located in the non-instrument channel area.
[0016] In an embodiment, there are at least two flushing channels, and a plurality of flushing channels are distributed on both sides of the camera module.
[0017] The utility model further provides a kind of endoscope, including the end cap of any of the above-mentioned field of view optimization of endoscope.
[0018] In the technical scheme of the utility model, the image acquisition end of the camera module is located in the non-instrument channel area, the outlet end of the instrument channel is located in the instrument channel area, and the instrument channel area is higher on the side away from the image acquisition end of the camera module than on the side close to the image acquisition end of the camera module, so that an obtuse angle is formed between the instrument channel area and the non-instrument channel area. In this way, the outlet end of the instrument channel falls within the image acquisition range of the camera module, and when the instrument extends from the instrument channel, the end of the instrument falls within the image acquisition range of the camera module. The position of the instrument can be obtained through the image in time, and the doctor can accurately control the real-time position and extension distance of the instrument.
[0019] In addition, the instrument channel area is on a side away from the image acquisition end of the camera module, and is higher than the instrument channel area on a side close to the image acquisition end of the camera module, so that an obtuse angle is formed between the instrument channel area and the non-instrument channel area. In this way, stone fragments and free tissue near the instrument can slide smoothly from the instrument channel area to the non-instrument channel area. The flushing function can provide a clear field of vision, preventing stone fragments and free tissue from accumulating between the instrument and the image acquisition end of the camera module, affecting the shooting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0021] Figure 1 A schematic structural diagram of an embodiment of an end cap for an endoscope with optimized field of view provided by the present invention;
[0022] Figure 2 for Figure 1 Schematic diagram of the top view of the proximal end of the endoscope cap with optimized mid-field of view;
[0023] Figure 3 for Figure 1 A schematic diagram of a top view structure corresponding to the distal end of an endoscope end cap with optimized field of view, after removing the instrument channel area and the non-instrument channel area;
[0024] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the image acquisition field of view of the camera module;
[0025] Figure 5 for Figure 4 Schematic diagram of the structure of the guide part.
[0026] Description of Figure Numbers:
[0027] 100. End cap of endoscope; 1. End cap body; 11. Proximal end; 12. Distal end; 121. Instrument channel area; 122. Non-instrument channel area; 123. Light exit area; 13. Mounting slot; 14. Proximal section; 2. Flushing channel; 21. Exit end of flushing channel; 3. Camera module; 31. Image acquisition end of camera module; 4. Instrument channel; 41. Exit end of instrument channel; 42. Guide portion; 5. Illumination device; 6. Instrument.
[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0030] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.
[0031] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0032] Electrohydraulic lithotripsy and visual biopsy need to be performed under the direct vision of a choledochoscope, but in clinical use, it is found that there are two problems under the existing end cap structure: first, the stone fragments and free tissue after lithotripsy easily block the view, and the clear view cannot be obtained through the flushing function, which affects the observation and judgment of the doctor; second, the outlet of the choledochoscope channel is outside the lens field of view, and the position cannot be obtained in time through the choledochoscope image when the instrument is inserted, which may cause damage to the bile duct wall and bleeding risk when blind insertion is performed. At present, most instruments are pre-set, which increases the difficulty of intubation.
[0033] Therefore, the utility model provides an end cap of a visual field optimized endoscope and an endoscope thereof, which aims at solving the problems that the existing end cap structure easily causes stone fragments and free tissue to block the view and the outlet of the choledochoscope channel is outside the lens field of view.
[0034] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the end cap 100 of the endoscope with optimized field of view includes: an end cap body 1, a camera module 3, and an instrument channel 4, the end cap body 1 has a relative proximal end 11 and a distal end 12, the distal end 12 is used to be set corresponding to the lesion site to be detected, and the end face of the distal end 12 is provided with an instrument channel area 121 and a non-instrument channel area 122; the camera module 3 is arranged on the end cap body 1, and the image acquisition end 31 of the camera module is located in the non-instrument channel area 122; the instrument channel 4 is arranged on the end cap body 1, and the outlet end 41 of the instrument channel is located in the instrument channel area 121; wherein, the side of the instrument channel area 121 away from the image acquisition end 31 of the camera module is higher than the side of the instrument channel area 121 close to the image acquisition end 31 of the camera module, so that an obtuse angle is formed between the instrument channel area 121 and the non-instrument channel area 122.
[0035] By adopting the above-mentioned technical solution, the image acquisition end 31 of the camera module is located in the non-instrument channel area 122, the exit end 41 of the instrument channel is located in the instrument channel area 121, and the instrument channel area 121 is on the side away from the image acquisition end 31 of the camera module, higher than the side of the instrument channel area 121 close to the image acquisition end 31 of the camera module, so that an obtuse angle is formed between the instrument channel area 121 and the non-instrument channel area 122. In this way, the exit end 41 of the instrument channel falls within the image acquisition range of the camera module 3. When the instrument 6 is extended from the instrument channel 4, the end of the instrument 6 falls within the image acquisition range of the camera module 3. The position of the instrument 6 can be obtained in time through the image, which is convenient for the doctor to control the real-time position and extension distance of the instrument 6 more accurately.
[0036] In addition, the instrument channel area 121 is higher on the side of the instrument channel area 121 away from the image acquisition end 31 of the camera module than on the side of the instrument channel area 121 close to the image acquisition end 31 of the camera module, so that an obtuse angle is formed between the instrument channel area 121 and the non-instrument channel area 122. In this way, stone fragments and free tissue near the instrument 6 can slide smoothly from the instrument channel area 121 to the non-instrument channel area 122. The flushing function can provide a clear field of vision, avoiding the accumulation of stone fragments and free tissue between the instrument 6 and the image acquisition end 31 of the camera module, which affects the shooting effect.
[0037] It is understood that the instrument 6 can be a confocal endoscope or biopsy forceps, or other instruments depending on the use requirements. The instrument channel area 121 is an inclined surface, and the non-instrument channel area 122 is a horizontal surface. The lower side of the instrument channel area 121 is connected to the non-instrument channel area 122, and the upper side of the instrument channel area 121 is higher than the non-instrument channel area 122.
[0038] In one embodiment of the present invention, the end face of the outlet end 41 of the instrument channel away from the camera module 3 is higher than the end face close to the camera module 3, and the end face of the outlet end 41 of the instrument channel away from the camera module 3 is horizontally set, and the end face close to the camera module 3 is inclined.
[0039] By adopting the above technical solution, the outlet end 41 of the instrument channel is at the end face away from the camera module 3, higher than the outlet end 41 of the instrument channel at the end face close to the camera module 3, and the outlet end 41 of the instrument channel is horizontally arranged at the end face away from the camera module 3, and the outlet end 41 of the instrument channel is inclined at the end face close to the camera module 3, so that the outlet end 41 of the instrument channel falls within the image acquisition range of the camera module 3, see Figure 4 When the instrument 6 is extended from the instrument channel 4, the position of the instrument 6 can be obtained in real time through the image, allowing the doctor to more accurately control the real-time position and extension distance of the instrument 6. In addition, it also facilitates the smooth sliding of stone debris and loose tissue around the instrument 6 from the instrument channel area 121 to the non-instrument channel area 122, thereby clearing the field of vision through the flushing function and preventing stone debris and loose tissue from accumulating between the instrument 6 and the image acquisition end 31 of the camera module, thereby affecting the shooting effect.
[0040] In one embodiment of the present invention, see Figure 4 and Figure 5 A guide portion 42 inclined toward the image acquisition end 31 of the camera module is provided on the inner wall at the exit of the instrument channel 4.
[0041] By adopting the above-mentioned technical solution, a guide portion 42 inclined toward the image acquisition end 31 of the camera module is provided on the inner wall at the exit of the instrument channel 4. After the end of the instrument 6 passes through the instrument channel 4, it can be tilted toward the image acquisition end 31 of the camera module, that is, offset toward the center of the shooting field of view. This not only makes it easier for the doctor to control the real-time position and extension distance of the instrument 6 more accurately, but also effectively avoids the outer side of the instrument 6 from piercing the bile duct wall when the catheter is in a wall-attached position.
[0042] In one embodiment of the present invention, the guide portion 42 is disposed on the inner wall of the exit of the instrument channel 4 away from the camera module 3 .
[0043] By adopting the above technical solution, the guide part 42 is arranged on the inner wall of the outlet of the instrument channel 4 and away from the camera module 3, so as to better guide the instrument 6 so that the instrument 6 is tilted toward the image acquisition end 31 of the camera module. Figure 5 .
[0044] In one embodiment of the present invention, see Figure 3The distal end 12 is further provided with a transparent light emitting area 123, and the proximal end 11 is provided with a mounting groove 13 extending toward the light emitting area 123. The light emitting area 123 constitutes the bottom of the mounting groove 13, and the mounting groove 13 is used to install the lighting device 5.
[0045] By adopting the above technical solution, the proximal end 11 is provided with a mounting groove 13 extending toward the light emitting area 123, and the light emitting area 123 forms the bottom of the mounting groove 13. The lighting device 5 is installed in the mounting groove 13. The light emitted by the lighting device 5 passes through the light-transmitting area so that the camera module 3 can capture a clearer image. It is understood that the light emitting side of the lighting device 5 faces the light emitting area 123.
[0046] In one embodiment of the present utility model, the light emitting area 123 is located between the instrument channel area 121 and the non-instrument channel area 122, there are at least two light emitting areas 123, and multiple light emitting areas 123 are distributed on both sides of the camera module 3, and each light emitting area 123 corresponds to one of the lighting devices 5.
[0047] By adopting the above technical solution, multiple light emitting areas 123 are distributed on both sides of the camera module 3, and the multiple light emitting areas 123 are arranged in a one-to-one correspondence with the multiple lighting devices 5, so that the camera module 3 can capture images more clearly.
[0048] In one embodiment of the present invention, see Figure 4 and Figure 5 The end cap body 1 has a distal segment 14 corresponding to the distal end 12 , and the cross-sectional diameter of the distal segment 14 gradually decreases in the direction extending toward the distal end 12 .
[0049] By adopting the above technical solution, the cross-sectional diameter of the distal segment 14 gradually decreases in the direction extending toward the distal end 12, that is, the cross-sectional diameter corresponding to the lesion to be detected is smaller, and the cross-sectional diameter away from the lesion to be detected is larger, thereby facilitating the insertion and removal of the end cap 100 of the endoscope with optimized field of view.
[0050] In one embodiment of the present invention, the endoscope end cap 100 with optimized field of view further includes a flushing channel 2 , which is disposed on the end cap body 1 and has an outlet end located in the non-instrument channel area 122 .
[0051] By adopting the above technical solution, the outlet end 21 of the flushing channel is located in the non-instrument channel area 122, which can better flush the stone fragments and free tissue that slide into the non-instrument channel area 122, so as to clarify the image shooting field of the camera module 3.
[0052] In one embodiment of the present invention, there are at least two flushing channels 2 , and the plurality of flushing channels 2 are distributed on both sides of the camera module 3 .
[0053] By adopting the above technical solution, the outlet ends 21 of the flushing channel are distributed on both sides of the image acquisition end 31 of the camera module, so as to more fully flush the stone debris and free tissue around the camera module 3.
[0054] The present invention also proposes an endoscope, which includes an endoscope end cap 100 with optimized field of view, and a catheter connected to the endoscope end cap 100 with optimized field of view. The specific structure of the endoscope end cap 100 with optimized field of view refers to the above-mentioned embodiment. Since the present endoscope adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.
[0055] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An end cap for an endoscope with optimized field of view, characterized in that: include: The end cap body (1) has a proximal end and a distal end opposite to each other, the distal end is arranged corresponding to the lesion site to be detected, and the distal end surface is provided with an instrument channel area and a non-instrument channel area; A camera module (3) is arranged on the end cap body (1), and an image acquisition end of the camera module is located in the non-instrument channel area; An instrument channel (4) is provided on the end cap body (1), wherein the outlet end of the instrument channel is located in the instrument channel area; Among them, the side of the instrument channel area away from the image acquisition end of the camera module is higher than the side thereof close to the image acquisition end of the camera module, so that an obtuse angle is formed between the instrument channel area and the non-instrument channel area.
2. The end cap of an endoscope with optimized field of view according to claim 1, wherein: The end face of the outlet end of the instrument channel away from the camera module (3) is higher than the end face close to the camera module (3), and the end face of the outlet end of the instrument channel away from the camera module (3) is horizontally arranged, and the end face close to the camera module (3) is inclined.
3. The end cap of an endoscope with optimized field of view according to claim 2, wherein: A guide portion inclined toward the image acquisition end of the camera module is provided on the inner wall at the outlet of the instrument channel (4).
4. The end cap of an endoscope with optimized field of view according to claim 3, wherein: The guide portion is arranged on the inner wall of the exit of the instrument channel (4) away from the camera module (3).
5. The end cap of an endoscope with optimized field of view according to claim 1, wherein: The distal end face is also provided with a transparent light emitting area, and the proximal end is provided with a mounting groove extending toward the light emitting area. The light emitting area constitutes the bottom of the mounting groove, and the mounting groove is used to install a lighting device (5).
6. The end cap of an endoscope with optimized field of view according to claim 5, characterized in that: The light emitting area is located between the instrument channel area and the non-instrument channel area. There are at least two light emitting areas. A plurality of light emitting areas are distributed on both sides of the camera module (3). Each light emitting area corresponds to one of the lighting devices (5).
7. The end cap of an endoscope with optimized field of view according to claim 1, wherein: The end cap body (1) has a distal segment corresponding to the distal end, and the cross-sectional diameter of the distal segment gradually decreases in a direction extending toward the distal end.
8. The end cap of an endoscope with optimized field of view according to any one of claims 1 to 7, characterized in that: It also includes a flushing channel (2), which is arranged on the end cap body (1) and has an outlet end located in the non-instrument channel area.
9. The end cap of an endoscope with optimized field of view according to claim 8, wherein: There are at least two flushing channels (2), and the plurality of flushing channels (2) are distributed on both sides of the camera module (3).
10. An endoscope, characterized in that: The invention comprises an end cap of an endoscope with optimized field of view as described in any one of claims 1 to 9.