Endoscope with adjustable light source

Abstract

The present application relates to the field of medical equipment, and provides an endoscope with an adjustable light source, including an insertion part, a light source host and a camera host; the insertion part is used for lighting and collecting images after being inserted into the human body; the light source host includes a first driving unit and a light source, a first light shielding sheet, a second light shielding sheet, a convex lens and a first wire harness arranged in sequence; the first light shielding sheet is provided with a first light-transmitting hole, and the second light shielding sheet is provided with a second light-transmitting hole, the first driving unit is connected to the first light shielding sheet, and is used to drive the first light shielding sheet to move or rotate, so that the first light-transmitting hole and the second light-transmitting hole are at least partially connected and form a light-transmitting channel; the convex lens is used to converge the light passing through the light-transmitting channel on one end face of the first wire harness, and the other end of the first wire harness is connected to the insertion part; the camera host is connected to the insertion part, and is used to obtain the image collected by the insertion part. The present application solves the problem that the traditional endoscope light source adjustment method is not effective.

Description

Technical Field

[0001] The present application relates to the field of medical equipment, and in particular to an endoscope with an adjustable light source. Background Art

[0002] As an important medical device, endoscope plays an important role in clinical diagnosis and treatment. With the continuous development of medical technology, endoscope has been widely used in the inspection and operation of digestive tract, respiratory tract, urinary system and other parts. Endoscope can visually observe the lesions in the body, improve the early detection rate of diseases and the accuracy of diagnosis and treatment, and greatly improve the prognosis of patients.

[0003] Existing endoscopes usually include an insertion part, a light source device, a camera device, and a display. The insertion part is used to enter the human body; the light source device is responsible for providing the necessary lighting conditions. A common method is to use optical fibers to transmit the light emitted by the light source to the insertion part so that the insertion part can illuminate the human tissue. The camera device is responsible for capturing the image information sent back by the insertion part, converting the optical signal into an electrical signal, and finally displaying the final image on the display.

[0004] The quality of the final image is directly related to the brightness of the light source. If the light source is too weak, it cannot illuminate the human body tissue; if the light source is too strong, bright spots will appear easily. Currently, the brightness of the light source is usually changed by changing the current.

[0005] However, changing the current may cause the color temperature of the light source to change, which may cause color distortion in the final image. Summary of the invention

[0006] In order to solve the problem that the traditional endoscope light source adjustment method has a poor effect, the present application provides an endoscope with an adjustable light source.

[0007] The present application provides an endoscope with an adjustable light source, which adopts the following technical solution:

[0008] An endoscope with adjustable light source, comprising: an insertion portion, a light source host and a camera host;

[0009] The insertion part is used for lighting and collecting images after being inserted into the human body;

[0010] The light source host comprises a first driving unit and a light source, a first light shielding sheet, a second light shielding sheet, a convex lens and a first wiring harness which are arranged in sequence;

[0011] The first light shielding sheet is provided with a first light-transmitting hole, the second light shielding sheet is provided with a second light-transmitting hole, and the first driving unit is connected to the first light shielding sheet and is used to drive the first light shielding sheet to move or rotate, so that the first light-transmitting hole and the second light-transmitting hole are at least partially connected to form a light-transmitting channel;

[0012] The convex lens is used to converge the light passing through the light-transmitting channel onto an end surface of one end of the first wire bundle, and the other end of the first wire bundle is connected to the insertion portion;

[0013] The camera host is connected to the insertion part and is used to obtain the image collected by the insertion part.

[0014] By adopting the above technical solution, the endoscope with adjustable light source can flexibly adjust the lighting intensity in different scenes to improve the imaging quality. Specifically:

[0015] The connection design between the first driving unit and the first light shielding sheet enables the first light-transmitting hole and the second light-transmitting hole to be connected to form a light-transmitting channel, thereby achieving precise control of light intensity.

[0016] The design of the convex lens converges the light passing through the light-transmitting channel to one end face of the first wire bundle, thereby ensuring the effective transmission of the light and avoiding the waste of light energy.

[0017] Preferably, the endoscope with adjustable light source further comprises a third light shielding sheet, a second driving unit and a light transmitting sheet;

[0018] The third light shielding sheet is disposed between the second light shielding sheet and the convex lens, and a plurality of third light-transmitting holes are disposed on the third light shielding sheet, and at least some of the third light-transmitting holes are provided with light-transmitting sheets;

[0019] The second driving unit is connected to the third light shielding sheet and is used to drive the third light shielding sheet to move or rotate, so that one of the third light transmission holes is aligned with the light transmission channel;

[0020] When there are multiple light-transmitting sheets, the light transmittances of the multiple light-transmitting sheets are not completely the same.

[0021] By adopting the above technical solution, an endoscope with an adjustable light source can select different light-transmitting holes by adjusting the third light-shielding sheet, so that light of different intensities can enter the insertion part. This not only improves the flexibility and adaptability of the light source, but also optimizes the image quality under different lighting conditions. Specifically, the transmittance of multiple light-transmitting sheets is not exactly the same, so that doctors can choose the most appropriate transmittance according to actual needs, further improving the accuracy of diagnosis. At the same time, the design of the second drive unit ensures that the selection process of the light-transmitting hole is simple and reliable, and improves the convenience and stability of operation.

[0022] Preferably, filters are provided at some of the third light transmission holes.

[0023] By adopting the above technical solution, the endoscope with adjustable light source can select different filters for filtering in different situations, thereby achieving selective transmission of light of specific wavelengths or colors and improving imaging quality. Specifically, when it is necessary to observe specific tissues or lesions, corresponding filters can be selected to enhance the contrast and clarity of these areas, making it easier for doctors to identify and diagnose. At the same time, the setting of filters also increases the flexibility of the system, and the lighting conditions can be quickly adjusted according to actual needs, which improves the convenience of operation and scope of application.

[0024] Preferably, the first driving unit is used to drive the first light shielding sheet to rotate;

[0025] The number of the first light-transmitting holes and the number of the second light-transmitting holes are both multiple, and the multiple first light-transmitting holes are evenly spaced and arranged circumferentially with the rotation axis of the first light-shielding sheet as the center axis, and the multiple second light-transmitting holes are evenly spaced and arranged circumferentially with the rotation axis of the first light-shielding sheet as the center axis.

[0026] By adopting the above technical solution, the light-transmitting holes are switched by rotation, which simplifies the structural design, reduces the manufacturing cost, and improves the convenience of operation.

[0027] Preferably, the first driving unit comprises a driving member, a first rotating shaft, a first gear and a second gear;

[0028] The driving member is connected to the first rotating shaft, the first gear is sleeved on the first rotating shaft, the second gear is sleeved on the first light shielding sheet, and the first gear is meshed with the second gear;

[0029] A transmission ratio of the first gear to the second gear is greater than one.

[0030] By adopting the above technical solution, the first driving unit can accurately control the rotation of the first shading sheet. At the same time, since the transmission ratio of the first gear to the second gear is greater than one, the angular velocity of the first shading sheet is smaller than the angular velocity of the first gear, which facilitates accurate control of the size of the light-transmitting channel.

[0031] Preferably, a ring-shaped limit groove is provided on the side of the second light shielding sheet facing the first light shielding sheet, and a plurality of light source gear switches are provided at intervals along the ring track on the side wall of the ring-shaped limit groove;

[0032] An adjusting rod is provided on one side of the first light shielding sheet facing the second light shielding sheet, and the adjusting rod is inserted into the annular limiting groove. When the first light shielding sheet rotates, the adjusting rod can move along the track of the annular limiting groove and abut against the plurality of light source gear switches in sequence;

[0033] The endoscope with adjustable light source also includes light source gear indicator lights, which are equal in number and correspond one to one with the light source gear switches, and are electrically connected to the corresponding light source gear switches. When the adjustment rod abuts against the light source gear switch, the corresponding light source gear indicator lights up.

[0034] By adopting the above technical solution, the light source gear indicator light corresponds to the light source gear switch one by one and is electrically connected. When the adjustment rod abuts against a light source gear switch, the corresponding light source gear indicator light will light up, making it easy for the operator to intuitively understand whether the current light source illumination intensity is in the corresponding gear state.

[0035] Preferably, the driving member comprises a light source gear knob.

[0036] By adopting the above technical solution, the setting of the light source gear knob allows the operator to conveniently manually adjust the light source brightness to adapt to different surgical environments and needs. Specifically, when the light source brightness needs to be changed, the operator only needs to rotate the light source gear knob to move the adjustment rod along the annular limit groove to change the light intensity. And according to whether the adjustment rod triggers the corresponding light source gear switch, it can help judge the accuracy of the light source adjustment.

[0037] Preferably, the endoscope with adjustable light source further comprises a limiter and a telescopic spring;

[0038] A plurality of accommodating grooves are provided on one side wall of the annular limiting groove at intervals along the circumferential direction, and the accommodating grooves are provided adjacent to the two opposite sides of any light source gear switch along the annular track direction of the annular limiting groove, and the limiting members are provided in the accommodating grooves, and the limiting members are connected to the inner wall of the accommodating groove through the telescopic springs in a one-to-one correspondence;

[0039] The limiting member has a guide portion, and when the guide portion abuts against the adjusting rod, the telescopic spring is compressed;

[0040] When the adjusting rod abuts against the light source gear switch, the telescopic spring rebounds to limit the adjusting rod between the corresponding two limiting members.

[0041] By adopting the above technical solution, the setting of the limit part helps to determine whether the current light intensity is in the corresponding light level.

[0042] Preferably, the endoscope with adjustable light source further comprises a universal movable frame, and the light source host and the camera host are both arranged on the universal movable frame;

[0043] The universal movable frame has a limiting plate, the top of the limiting plate has a V-shaped limiting groove, the first wire harness passes through the V-shaped limiting groove, and the V-shaped limiting groove is used to limit the end of the first wire harness.

[0044] By adopting the above technical solution, the light source host and the camera host of the endoscope with adjustable light source are fixed on the universal mobile frame, making the whole device more stable and easy to operate. At the same time, the V-shaped limit groove design on the limit plate can effectively prevent the first wire harness from being separated from the light source host due to pulling during use, ensuring the reliability and stability of signal transmission.

[0045] In summary, the present application includes at least one of the following beneficial technical effects:

[0046] 1. The first driving unit drives the first light shielding sheet to move or rotate, thereby changing the size of the light transmission channel, achieving precise control of the light intensity and improving the imaging quality;

[0047] 2. The convex lens converges the light passing through the light-transmitting channel onto one end face of the first wire bundle, ensuring the efficiency and stability of light transmission and further improving the imaging quality of the endoscope with adjustable light source;

[0048] 3. By setting the light source gear indicator light, it is convenient for medical staff to judge whether the light intensity is adjusted to the corresponding gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the structure of an endoscope with an adjustable light source provided in the present application.

[0050] Figure 2 It is a structural schematic diagram of the light source host of the endoscope with adjustable light source provided in the present application.

[0051] Figure 3 It is a schematic structural diagram of the first light shielding sheet of the endoscope with adjustable light source provided in the present application.

[0052] Figure 4 It is a schematic structural diagram of the second light shielding sheet of the endoscope with adjustable light source provided in the present application.

[0053] Figure 5 This application provides Figure 4 A magnified schematic diagram of center A.

[0054] Figure 6 It is a schematic structural diagram of the third shading sheet of the endoscope with adjustable light source provided in the present application.

[0055] Description of reference numerals:

[0056] 1. Insertion part;

[0057] 2. Light source host; 21. First driving unit; 211. Driving member; 212. First rotating shaft; 213. First gear; 214. Second gear; 22. Light source; 23. First shading sheet; 231. First light transmission hole; 232. Adjusting rod; 24. Second shading sheet; 241. Second light transmission hole; 242. Annular limiting groove; 243. Accommodating groove; 25. Convex lens; 26. First wiring harness; 27. Third shading sheet; 271. Light transmission sheet; 272. Third light transmission hole; 273. Filter; 28. Second driving unit;

[0058] 3. Camera host; 31. Second wiring harness;

[0059] 4. Universal movable frame; 41. Limit plate; 411. V-shaped limit groove;

[0060] 5. Display; 6. Light source position switch;

[0061] 7. Limiting member; 71. Guide portion;

[0062] 8. Telescopic spring. DETAILED DESCRIPTION

[0063] The following is combined with Figures 1 to 6 This application is described in further detail.

[0064] like Figure 1 As shown, an embodiment of the present application discloses an endoscope with an adjustable light source, comprising: an insertion portion 1, a light source host 2, a camera host 3, a universal movable frame 4 and a display 5.

[0065] The light source host 2, the camera host 3 and the display 5 are all arranged on the universal movable frame 4. The bottom of the universal movable frame 4 is provided with universal wheels, so as to facilitate the movement of the endoscope with adjustable light source. The side walls of the light source host 2 and the camera host 3 are provided with heat dissipation holes, and dustproof nets are provided at the heat dissipation holes. The light source host 2 and the camera host 3 can be provided with heat dissipation fans inside to help dissipate heat.

[0066] like Figures 2 to 4 As shown, the light source host 2 includes a first driving unit 21 and a light source 22, a first light shielding sheet 23, a second light shielding sheet 24, a convex lens 25 and a first wiring harness 26 which are arranged in sequence.

[0067] The light source 22 may be a xenon lamp or an LED lamp, etc. The first light shielding sheet 23 and the second light shielding sheet 24 are both in the shape of discs, and are coaxially arranged and parallel to each other. A connecting rod (not shown) may be arranged to connect the middle portion of the first light shielding sheet 23 to the housing of the light source host 2, and the first light shielding sheet 23 is rotatably connected to the connecting rod, so that the first light shielding sheet 23 can rotate under the action of an external force.

[0068] The first light shielding sheet 23 is provided with a plurality of first light-transmitting holes 231 evenly spaced along the circumference with its rotation axis as the central axis; the second light shielding sheet 24 is provided with a plurality of second light-transmitting holes 241 evenly spaced along the circumference with its rotation axis as the central axis. When at least a portion of the first light-transmitting hole 231 is aligned and connected with at least a portion of the second light-transmitting hole 241, a light-transmitting channel for light from the light source 22 to pass through can be formed. When the first light shielding sheet 23 rotates, the size of the light-transmitting channel can change, thereby changing the amount of light passing through the light-transmitting channel. Among them, the first light-transmitting hole 231 and the second light-transmitting hole 241 have the same shape, size and number, which is convenient for manufacturing and adjusting the size of the light-transmitting channel.

[0069] The first driving unit 21 is connected to the first light shielding sheet 23 and is used to drive the first light shielding sheet 23 to move or rotate, thereby changing the size of the light transmission channel.

[0070] For example, the first driving unit 21 includes a driving member 211 , a first rotating shaft 212 , a first gear 213 and a second gear 214 .

[0071] The driving member 211 is connected to the first rotating shaft 212. The first gear 213 is sleeved on the first rotating shaft 212. The second gear 214 is sleeved on the first light shielding sheet 23. The first gear 213 meshes with the second gear 214. The driving member 211 drives the first rotating shaft 212 to rotate, thereby rotating the first light shielding sheet 23.

[0072] The size of the first gear 213 is much smaller than the second gear 214, that is, the transmission ratio of the first gear 213 to the second gear 214 is greater than 1. This transmission mode of the small gear driving the large gear can make the angular velocity of the first light shielding sheet 23 slower when rotating, thereby making the first driving unit 21 more precise in adjusting the size of the light transmission channel.

[0073] The driving member 211 can be a first motor or a gear knob of the light source 22 provided on the light source host 2. Thus, the size of the light transmission channel can be adjusted automatically or manually.

[0074] The light passing through the light-transmitting channel can be converged by the convex lens 25 to one end face of the first wire harness 26, and the other end of the first wire harness 26 is connected to the insertion part 1. Thus, the light passing through the light-transmitting channel is transmitted to the insertion part 1, and the insertion part 1 can be further illuminated. The size change of the light-transmitting channel will also directly affect the lighting situation. Among them, there is an optical fiber inside the first wire harness 26 for transmitting light.

[0075] The camera host 3 is connected to the insertion part 1 through the second wiring harness 31. The insertion part 1 is used to be inserted into the human body. The end of the insertion part 1 has an objective lens. When the insertion part 1 illuminates the human tissue, the reflected light can pass through the objective lens and be captured by the camera host 3. The camera host 3 is a conventional technology and may include an image sensor and a processing circuit. The image sensor converts the optical signal into an electrical signal. Then the processing circuit amplifies, filters, performs analog-to-digital conversion, etc. on the electrical signal to generate a digital image signal. Finally, the digital image signal is transmitted to the display 5, and the image is displayed by the display 5.

[0076] like Figure 1 As shown, in some embodiments, the universal movable frame 4 has a limit plate 41, and the limit plate 41 is used to limit the light source host 2 to prevent the light source host 2 from falling from the universal movable frame 4. In addition, an interface is provided on the light source host 2, and the end (connector) of the first wire harness 26 is connected to the light source host 2 by inserting into the interface. A limit plate 41 must be provided on one side of the light source host 2 where the interface is provided, and a V-shaped limit groove 411 is provided on the top of the limit plate 41. The first wire harness 26 plugged into the connector of the light source host 2 passes through the V-shaped limit groove 411, and the V-shaped limit groove 411 can limit the end of the first wire harness 26 to prevent the first wire harness 26 from being separated from the interface due to reasons such as dragging the first wire harness 26.

[0077] Similarly, a limiting plate 41 and a V-shaped limiting groove 411 may also be provided to limit the camera host 3 and the second wire harness 31 .

[0078] When the light source host 2 with the first wire harness 26 inserted is placed on the universal movable frame 4, the first wire harness 26 can automatically fall into the V-shaped limit groove 411. In addition, the advantage of the V-shaped limit groove 411 is that if the dragging force is too large and causes the light source host 2 to tilt, the first wire harness 26 can still break away from the limit of the V-shaped limit groove 411 and thus break away from the light source host 2, thereby avoiding damage to the light source host 2 or the first wire harness 26. The space on the universal movable frame 4 to accommodate the light source host 2 is limited, and with the limiting effect of the limit plate 41, the light source host 2 will not fall even if it tilts.

[0079] like Figures 2 to 5 As shown, in some embodiments, an annular limiting groove 242 is provided on one side of the second shading sheet 24 facing the first shading sheet 23 , and a plurality of light source gear switches 6 are provided on the side wall of the annular limiting groove 242 at intervals along its annular track.

[0080] An adjustment rod 232 is provided on one side of the first light shielding sheet 23 facing the second light shielding sheet 24, and the adjustment rod 232 is perpendicular to the first light shielding sheet 23. One end of the adjustment rod 232 away from the first light shielding sheet 23 penetrates into the annular limiting groove 242. When the first light shielding sheet 23 rotates, the adjustment rod 232 can move along the trajectory of the annular limiting groove 242 and abut against a plurality of light source position switches 6 in sequence. The endoscope with adjustable light source also includes a light source 22 position indicator light, and the light source 22 position indicator light is equal in number to the light source position switch 6 and corresponds one to one, and the light source 22 position indicator light is electrically connected to the corresponding light source position switch 6.

[0081] Specifically, the endoscope with an adjustable light source has multiple light intensity levels, and the size of the light-transmitting channel corresponding to each light intensity level is different. The first driving unit 21 drives the first shading plate 23 to rotate, thereby adjusting the size of the light-transmitting channel to the corresponding light intensity level, thereby making the light intensity meet the requirements of the corresponding light intensity level.

[0082] The light source position switch 6 corresponds to the light intensity position one by one. The light source 22 position indicator light can be distinguished by different colors for different light intensity positions, or by numbers for different light intensity positions. The light source position switch 6 is a push-type switch, and elastic parts such as springs are provided inside it. When the adjustment rod 232 abuts against the light source position switch 6, the light source position switch 6 is pressed, the corresponding light source 22 position indicator light is on, and the elastic part is compressed; when the adjustment rod 232 is disengaged from the light source position switch 6, the light source position switch 6 rebounds, and the corresponding light source 22 position indicator light is off.

[0083] When the driving member 211 is the first motor, the display 5 can display the current light intensity level of the endoscope with adjustable light source, and the medical staff can understand or change the light intensity level through the display 5. The endoscope with adjustable light source also includes a control module.

[0084] If the illumination intensity is set to a certain illumination intensity level, the control module controls the first motor to drive the first light shielding sheet 23 to rotate to the corresponding position. At this time, the adjustment rod 232 just contacts the light source level switch 6 corresponding to the current illumination intensity level, thereby lighting up the corresponding light source 22 level indicator. Conversely, whether the corresponding light source 22 level indicator lights up can help determine whether the size of the current light transmission channel is consistent with the size of the light transmission channel set by the current illumination intensity level.

[0085] In addition, when the driving member 211 is a gear knob of the light source 22, the medical staff changes the light intensity gear of the endoscope with adjustable light source by twisting the gear knob of the light source 22. Specifically, the first light shielding sheet 23 is rotated to adjust the size of the light transmission channel to the set value, thereby adjusting the light intensity to the corresponding light intensity gear. When switching the light intensity gear, the corresponding light source 22 gear indicator light can be used to help determine whether the endoscope with adjustable light source is adjusted to the corresponding light intensity gear.

[0086] Furthermore, if Figures 4 to 5 As shown, the endoscope with adjustable light source further includes a stopper 7 and a telescopic spring 8. A plurality of accommodating grooves 243 are provided at intervals along the circumferential direction on one side wall of the annular stopper groove 242, and accommodating grooves 243 are provided adjacent to any light source gear switch 6 on opposite sides along the annular track direction of the annular stopper groove 242, and stoppers 7 are provided in the accommodating grooves 243, and the stoppers 7 are connected to the inner wall of the accommodating groove 243 through the telescopic spring 8 in a one-to-one correspondence.

[0087] Specifically, the limiter 7 has a guide portion 71, which can be a guide slope. When the adjustment rod 232 rotates to abut against the guide portion 71 of the limiter 7 on one side of the light source position switch 6, the extrusion force of the adjustment rod 232 on the limiter 7 will compress the telescopic spring 8, and the limiter 7 will retract into the accommodating groove 243, so that the adjustment rod 232 can continue to move and abut against the light source position switch 6 to trigger the light source position switch 6. When the adjustment rod 232 triggers the light source position switch 6, the previously squeezed limiter 7 just disengages from the adjustment rod 232 and rebounds under the action of the telescopic spring 8 to limit the adjustment rod 232 between the two limiters 7.

[0088] Since the light source gear switch 6 has a certain volume, when the adjusting rod 232 triggers the light source gear switch 6, the adjusting rod 232 still has a certain movement space, and when the adjusting rod 232 moves in this movement space, the light source gear switch 6 can always be in a triggered state. By limiting the adjusting rod 232 by the limiting member 7, it can ensure that the light intensity is stable at the corresponding light intensity gear, and avoid the light intensity change caused by excessive movement of the adjusting rod 232 or vibration causing the adjustment rod 232 to move.

[0089] When the medical staff twists the gear knob of the light source 22 to drive the adjustment rod 232 to move, the medical staff's fingers can feel obvious resistance or frustration when the adjustment rod 232 squeezes the limiter 7, and when the adjustment rod 232 moves between the two limiters 7, the resistance will suddenly disappear or weaken and the corresponding light source 22 gear indicator light will light up, and if you want to further rotate the light source 22 gear knob, you will feel another resistance. According to the resistance change and the light and dark of the light source 22 gear indicator, it can help medical staff determine whether to adjust the light intensity to the corresponding light intensity gear when manually adjusting the light source 22.

[0090] When the adjusting rod 232 needs to be moved again, a certain force can be applied to the adjusting rod 232 to squeeze the limiting member 7 on the other side of the light source gear switch 6, so that the corresponding limiting member 7 retracts and the adjusting rod 232 can be released from the limit.

[0091] like Figure 2 and Figure 6 As shown, in some embodiments, the endoscope with an adjustable light source further includes a third light shielding sheet 27 , a second driving unit 28 and a light transmitting sheet 271 .

[0092] The third light shielding sheet 27 is disposed between the second light shielding sheet 24 and the convex lens 25. The third light shielding sheet 27 is provided with a plurality of third light transmission holes 272, and at least part of the third light transmission holes 272 is provided with a light transmission sheet 271. The second driving unit 28 is connected to the third light shielding sheet 27, and is used to drive the third light shielding sheet 27 to move or rotate, so that one of the third light transmission holes 272 is aligned with the light transmission channel; when there are multiple light transmission sheets 271, the light transmittances of the multiple light transmission sheets 271 are not completely the same.

[0093] For example, a plurality of third light-transmitting holes 272 are evenly spaced along the circumferential direction. The second driving unit 28 includes a second motor and a second shaft, the second shaft is connected to the second motor and the third light shielding sheet 27 respectively, and the third light shielding sheet 27 can be driven to rotate by the second motor.

[0094] When the third light-transmitting hole 272 is at least partially connected to the light-transmitting channel, at least part of the light can reach the third light-transmitting hole 272. If a light-transmitting sheet 271 is provided at the third light-transmitting hole 272, the light will be attenuated after passing through the light-transmitting sheet 271, thereby changing the lighting condition of the insertion part 1. By allowing the light to pass through light-transmitting sheets 271 with different light transmittances, different lighting conditions can be obtained. In addition, there is at least one third light-transmitting hole 272 that satisfies: the light-transmitting sheet 271 and other components are not provided at the third light-transmitting hole 272, and its size satisfies that the light irradiated from the light-transmitting channel can basically pass through the third light-transmitting hole 272, thereby avoiding light energy loss.

[0095] Furthermore, a filter 273 may be provided at a portion of the third light-transmitting holes 272 , and the filter 273 may selectively transmit or block light of a specific wavelength, so that medical personnel may better observe human tissue.

Claims

1. An endoscope with an adjustable light source, characterized in that: include: Insertion part (1), light source host (2) and camera host (3); The insertion part (1) is used to illuminate and collect images after being inserted into the human body; The light source host (2) comprises a first driving unit (21), and a light source (22), a first light shielding sheet (23), a second light shielding sheet (24), a convex lens (25), and a first wiring harness (26) which are arranged in sequence; The first light shielding sheet (23) is provided with a first light transmission hole (231), the second light shielding sheet (24) is provided with a second light transmission hole (241), the first driving unit (21) is connected to the first light shielding sheet (23) and is used to drive the first light shielding sheet (23) to move or rotate, so that the first light transmission hole (231) and the second light transmission hole (241) are at least partially connected to form a light transmission channel; The convex lens (25) is used to converge the light passing through the light-transmitting channel onto an end surface of one end of the first wire bundle (26); the other end of the first wire bundle (26) is connected to the insertion portion (1); The camera host (3) is connected to the insertion part (1) and is used to obtain images captured by the insertion part (1); The first driving unit (21) comprises a driving member (211), a first rotating shaft (212), a first gear (213) and a second gear (214); The driving member (211) is connected to the first rotating shaft (212), the first gear (213) is sleeved on the first rotating shaft (212), the second gear (214) is sleeved on the first light shielding sheet (23), and the first gear (213) is meshed with the second gear (214); A transmission ratio between the first gear (213) and the second gear (214) is greater than one; An annular limiting groove (242) is provided on the side of the second light shielding sheet (24) facing the first light shielding sheet (23), and a plurality of light source gear switches (6) are provided at intervals along an annular track on the side wall of the annular limiting groove (242); An adjusting rod (232) is provided on a side of the first light shielding sheet (23) facing the second light shielding sheet (24), the adjusting rod (232) being inserted into the annular limiting groove (242), and when the first light shielding sheet (23) rotates, the adjusting rod (232) can move along the track of the annular limiting groove (242) and abut against a plurality of the light source gear switches (6) in sequence; The endoscope with an adjustable light source further comprises a light source (22) gear indicator light, the light source (22) gear indicator light is equal in number to the light source gear switch (6) and corresponds one to one, the light source (22) gear indicator light is electrically connected to the corresponding light source gear switch (6), and when the adjustment rod (232) abuts against the light source gear switch (6), the corresponding light source (22) gear indicator light lights up; The endoscope with an adjustable light source further comprises a limiter (7) and a telescopic spring (8); A plurality of accommodating grooves (243) are provided on a side wall of one side of the annular limiting groove (242) at intervals in the circumferential direction, and the accommodating grooves (243) are provided adjacent to any of the light source gear switches (6) on opposite sides along the annular track direction of the annular limiting groove (242), and the accommodating grooves (243) are provided in the accommodating grooves (243), and the accommodating grooves (243) are connected to the inner wall of the accommodating groove (243) in a one-to-one correspondence manner via the telescopic springs (8); The limiting member (7) has a guide portion (71), and when the guide portion (71) abuts against the adjusting rod (232), the telescopic spring (8) is compressed; When the adjustment rod (232) abuts against the light source gear switch (6), the telescopic spring (8) rebounds to limit the adjustment rod (232) between the corresponding two limiting members (7).

2. The endoscope with adjustable light source according to claim 1, characterized in that: The endoscope with an adjustable light source further comprises a third light shielding sheet (27), a second driving unit (28) and a light transmitting sheet (271); The third light shielding sheet (27) is arranged between the second light shielding sheet (24) and the convex lens (25); a plurality of third light transmission holes (272) are provided on the third light shielding sheet (27); and light transmission sheets (271) are provided at at least some of the third light transmission holes (272); The second driving unit (28) is connected to the third light shielding sheet (27), and is used to drive the third light shielding sheet (27) to move or rotate, so that one of the third light transmission holes (272) is aligned with the light transmission channel; When there are multiple light-transmitting sheets (271), the light transmittances of the multiple light-transmitting sheets (271) are not completely the same.

3. The endoscope with adjustable light source according to claim 2, characterized in that: A filter (273) is provided at a portion of the third light transmission holes (272).

4. The endoscope with adjustable light source according to claim 1, characterized in that: The first driving unit (21) is used to drive the first light shielding sheet (23) to rotate; The number of the first light-transmitting holes (231) and the number of the second light-transmitting holes (241) are both multiple, the multiple first light-transmitting holes (231) are evenly spaced and arranged along the circumferential direction with the rotation axis of the first light-shielding sheet (23) as the central axis, and the multiple second light-transmitting holes (241) are evenly spaced and arranged along the circumferential direction with the rotation axis of the first light-shielding sheet (23) as the central axis.

5. The endoscope with adjustable light source according to claim 1, characterized in that: The driving member (211) comprises a light source (22) gear position knob.

6. The endoscope with adjustable light source according to claim 1, characterized in that: The endoscope with adjustable light source further comprises a universal movable frame (4), and the light source host (2) and the camera host (3) are both arranged on the universal movable frame (4); The universal movable frame (4) has a limiting plate (41), the top of the limiting plate (41) has a V-shaped limiting groove (411), the first wire harness (26) passes through the V-shaped limiting groove (411), and the V-shaped limiting groove (411) is used to limit the end of the first wire harness (26).

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