Electronic visual nasopharyngolaryngoscope

Abstract

The invention relates to the technical field of medical equipment, and discloses an electronic visual nasopharyngolaryngoscope which comprises a handle shell, a visual display screen and an insertion part, the visual display screen is fixedly connected with the top of the handle shell through a support, and the insertion part is fixed to the bottom of the handle shell; the bendable lens is installed at the end, away from the handle shell, of the insertion part, a rotating hand wheel for controlling the bendable lens at the far end to conduct vertical bending angle adjustment is installed on the handle shell, a fixing frame is fixed to the position, above the rotating hand wheel, of the top of the handle shell, and a cylinder body is fixedly connected to the top of the fixing frame through a connecting plate; under the action of the designed anti-interference unit, the power unit and the air suction unit, liquid residues on the lens can be blow-dried and removed while the angle of the bendable lens is adjusted, and it is guaranteed that the observation lens is in a clear state; therefore, the shooting effect of the bendable lens can be improved without taking out the nasopharyngeal laryngoscope.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an electronic visualization nasopharyngeal laryngoscope. Background Art

[0002] Electronic nasopharyngeal mirror is a high-tech medical device that integrates a micro camera and high-definition display technology, allowing doctors to intuitively observe the details of the nasopharynx and throat. The advantage of this device is that it can provide real-time and intuitive images, allowing doctors to accurately judge the condition and thus develop a more precise treatment plan.

[0003] An electronic nasopharyngeal laryngoscope usually includes a handle and an insertion part at the front of the handle. In order to extend into the patient's cavity and have a larger inspection range, the head of the insertion part is provided with a bendable part, and the bending is controlled by a control swing arm on the handle to pull a cable connected to the head of the insertion part, thereby controlling the upper and lower bending angles of the adjustable bending part, and then transmitting the captured image to the connected display device, so that the doctor can see a clear image of the nasopharynx on the screen. Through the magnification function, the doctor can more clearly observe subtle lesions in the nasopharynx, such as inflammation, tumors, polyps, etc.

[0004] For example, the existing Chinese patent document CN201110401397.1 discloses a rigid intubation endoscope with an adjustable front end angle, wherein the eyepiece assembly is connected to the front end portion through an operating portion, a rigid insertion portion and an adjustable bending portion in sequence; the image transmission element is an optical fiber bundle, which is successively passed through the operating portion, the rigid insertion portion and the adjustable bending portion; the objective lens assembly is arranged in the front end portion and connected to the eyepiece assembly through the image transmission element; the operating portion is equipped with an LED light source; the lighting optical fiber is successively passed through the operating portion, the rigid insertion portion, the adjustable bending portion and the front end portion; the operating portion is provided with a rotating handle and also includes a steel cable, which is passed through the rigid insertion portion and the adjustable bending portion and respectively connects the rotating handle and the adjustable bending portion.

[0005] However, when the above-mentioned existing electronic nasopharyngeal laryngoscope is in use, the lens may sometimes be blurred due to bleeding and secretions in the patient's nasopharynx, thereby affecting observation. Therefore, the nasopharyngeal laryngoscope can only be taken out, and the lens of the nasopharyngeal laryngoscope must be re-cleaned and reinserted into the patient's nasopharynx, which can easily prolong the operation time and may even cause unnecessary damage to the patient's pharynx and esophagus due to repeated removal and insertion of the endoscope. Summary of the invention

[0006] The purpose of the present invention is to provide an electronic visualization nasopharyngeal endoscope to solve the problem raised in the above background technology that bleeding and secretions in the patient's nasopharynx and throat cause blurring of the lens, thereby affecting observation.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electronic visualization nasopharyngeal laryngoscope, comprising a handle shell, a visualization display screen and an insertion part, wherein the visualization display screen is fixedly connected to the top of the handle shell through a bracket, and the insertion part is fixed to the bottom of the handle shell; it also includes: a flexible lens installed at one end of the insertion part away from the handle shell, a rotating hand wheel for controlling the flexible lens at the far end to adjust the upward and downward bending angle is installed on the handle shell, a fixing frame is fixed above the rotating hand wheel and on the top of the handle shell, a cylinder body is fixedly connected to the top of the fixing frame through a connecting plate, an anti-interference unit for cleaning liquid adhered to the flexible lens is connected to the cylinder body, a power unit is movably connected to one end of the cylinder body, and an air suction unit is provided between the other end of the cylinder body and the visualization display screen; a transmission unit installed at the bottom of the fixing frame, the transmission unit is used to transmit the torque of the rotating hand wheel to the power unit for power connection.

[0008] Preferably, the anti-interference unit includes a first air pipe fixedly connected to the cylinder body via a one-way valve, an air guide hose is inserted into the handle shell, the insertion portion and the flexible lens, one end of the air guide hose is connected to the first air pipe, and the other end thereof is fixedly connected to an annular tube, the central axis of the annular tube coincides with the central axis of the flexible lens, and the annular tube is distributed at the outer edge of the flexible lens, and a bent tube is fixed to one side of the annular tube. The designed anti-interference unit can improve the blurring phenomenon at the flexible lens and improve the shooting effect.

[0009] Preferably, the power unit includes a piston body connected to the inside of the cylinder body through a piston ring sliding seal, one end of the piston body is rotatably connected to a connecting rod through a piston pin, the end of the connecting rod away from the piston body is rotatably connected to a crank, one end of the crank is fixed with a transmission shaft, the output end of the transmission unit is transmission-connected to the transmission shaft, and the designed power unit can provide power for the anti-interference unit.

[0010] Preferably, the suction unit includes a second air pipe fixedly connected to the cylinder body via a one-way valve, the second air pipe is fixedly connected to a filter element at one end away from the cylinder body, the bottom of the filter element is connected to a suction pipe via a connecting pipe, and a cannula is fixed to the bottom of the suction pipe. The designed suction unit can provide continuous gas for the anti-interference unit.

[0011] Preferably, the transmission unit includes a large gear fixedly connected to the rotating handwheel and the coaxial, an idler gear is meshed on the large gear, a small gear is meshed on one side of the idler gear, the center axis of the idler gear is rotatably connected to the fixed frame via a bearing, the small gear is fixedly sleeved with the transmission shaft, and the transmission shaft is rotatably connected to the fixed frame via a bearing. The designed transmission unit can provide torque to the power unit when the rotating handwheel is used.

[0012] Preferably, the filter element comprises a square frame, the top of the square frame is fixed to and communicated with one end of the second air pipe, a filter screen is provided inside the square frame, and the designed filter element can filter dust in the inhaled gas.

[0013] Preferably, a plurality of the bent pipes are evenly distributed on one side of the annular pipe, and the air outlet ends of the bent pipes are obliquely opposite to the end of the flexible lens, so as to provide a multi-directional blowing action to the flexible lens.

[0014] Preferably, a plurality of the insert tubes are evenly distributed on one side of the intake pipe, and one end of the insert tube away from the intake pipe is fixedly plugged into the top of the visual display screen and extends into the interior of the visual display screen, thereby utilizing the hot gas inside the visual display screen to improve the heat dissipation performance of the visual display screen.

[0015] Preferably, a sealing cover plate is fixed to one side of the square frame by screws, and the filter screen is slidably connected to the inside of the square frame, so that the filter screen can be easily disassembled.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention improves the existing electronic nasopharyngeal laryngoscope. Through the designed anti-interference unit, power unit and suction unit, the liquid residue on the lens can be blown dry and removed when the angle of the flexible lens is adjusted, ensuring that the observation lens is in a clear state, thereby improving the shooting effect of the flexible lens without taking out the nasopharyngeal laryngoscope.

[0017] 2. The air intake end of the air intake unit in the present invention can extend into the interior of the visual display screen, so that the hot gas in the visual display screen can be extracted, and the hot gas inside the visual display screen can be further compressed into the anti-interference unit, which can not only improve the heat dissipation performance of the visual display screen, but also increase the temperature of the gas to improve the air-drying effect of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3It is a structural schematic diagram of the anti-interference unit of the present invention; Figure 4 is a schematic structural diagram of a bendable lens in the present invention; Figure 5 It is a structural schematic diagram of the power unit of the present invention; Figure 6 It is a structural schematic diagram of the air suction unit of the present invention; Figure 7 It is a structural schematic diagram of the transmission unit of the present invention; Figure 8 for Figure 6 A magnified image of area A.

[0019] In the figure: 1. handle housing; 2. visual display screen; 3. insertion part; 4. flexible lens; 5. rotating hand wheel; 6. fixing frame; 7. cylinder body; 8. anti-interference unit; 9. power unit; 10. suction unit; 11. transmission unit; 12. first air pipe; 13. air guide hose; 14. annular pipe; 15. bent pipe; 16. piston body; 17. connecting rod; 18. crank; 19. transmission shaft; 20. second air pipe; 21. filter element; 22. suction pipe; 23. intubation tube; 24. large gear; 25. idler gear; 26. small gear; 27. square frame; 28. filter screen; 29. ​​sealing cover plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 2 An electronic visualization nasopharyngeal laryngoscope shown in the figure includes a handle shell 1, a visualization display screen 2 and an insertion part 3. The visualization display screen 2 is fixedly connected to the top of the handle shell 1 through a bracket to ensure the stability and visibility of the visualization display screen 2. The insertion part 3 is fixed to the bottom of the handle shell 1. Through the visualization display screen 2, the doctor can observe the condition of the nasopharynx more intuitively, thereby improving the accuracy of diagnosis.

[0022] The invention also includes: a bendable lens 4 installed at one end of the insertion portion 3 away from the handle housing 1, a rotating hand wheel 5 for controlling the bendable lens 4 at the far end to adjust the bending angle up and down is installed on the handle housing 1, a fixing frame 6 is fixed above the rotating hand wheel 5 and on the top of the handle housing 1, a cylinder body 7 is fixedly connected to the top of the fixing frame 6 through a connecting plate, an anti-interference unit 8 for cleaning the liquid adhered to the bendable lens 4 is connected to the cylinder body 7, a power unit 9 is movably connected to one end of the cylinder body 7, and an air suction unit 10 is provided between the other end of the cylinder body 7 and the visual display screen 2; a transmission unit 11 installed at the bottom of the fixing frame 6, and the transmission unit 11 is used to turn the rotating hand wheel The torque of hand wheel 5 is transmitted to power unit 9 for power connection, and torque is provided to transmission unit 11 by rotating hand wheel 5. Transmission unit 11 transmits power to power unit 9 so that it generates reciprocating force in left and right directions, and utilizes suction unit 10 to inhale and compress gas at the far end into anti-interference unit 8, so that a small amount of gas with high pressure and certain temperature can be blown out from the end of anti-interference unit 8 each time the gas is compressed, and the blown gas can be used to dry and remove liquid residue on the lens when adjusting the angle of the flexible lens 4, so as to ensure that the observation lens is in a clear state, thereby improving the shooting effect of the flexible lens 4 without taking out the nasopharyngeal laryngoscope.

[0023] For further information, see Figure 3 and Figure 4 In order to improve the shooting effect, the anti-interference unit 8 includes a first air pipe 12 fixedly connected to the cylinder body 7 through a one-way valve, and an air guide hose 13 is inserted into the handle housing 1, the insertion portion 3 and the flexible lens 4. One end of the air guide hose 13 is connected to the first air pipe 12, and the other end thereof is fixedly connected to an annular tube 14. The central axis of the annular tube 14 coincides with the central axis of the flexible lens 4, and the annular tube 14 is distributed at the outer edge of the flexible lens 4. A curved tube 15 is fixed to one side of the annular tube 14; When in use, the cylinder 7 is compressed by the power unit 9, and the compressed gas enters the gas hose 13 through the first air pipe 12. Since the gas hose 13 is a slender structure, the pressure of the introduced gas is relatively large. When the gas inside the gas hose 13 is full, it will be sprayed from the end into the annular tube 14, and finally sprayed out from the curved tube 15 to dry and remove the liquid residue on the lens.

[0024] For further information, see Figure 5 and Figure 7In order to provide power for the anti-interference unit 8, the power unit 9 includes a piston body 16 connected to the cylinder body 7 through a piston ring sliding seal, one end of the piston body 16 is rotatably connected to a connecting rod 17 through a piston pin, and the end of the connecting rod 17 away from the piston body 16 is rotatably connected to a crank 18, one end of the crank 18 is fixed with a transmission shaft 19, and the output end of the transmission unit 11 is transmission-connected to the transmission shaft 19; When in use, the transmission unit 11 drives the transmission shaft 19 to rotate, and the transmission shaft 19 drives the crank 18 to rotate. The crank 18 drives the connecting rod 17 to swing, thereby dragging the piston body 16 to reciprocate inside the cylinder body 7. When the piston body 16 compresses the gas, the one-way valve on the first air pipe 12 opens, and the high-pressure gas is pressed into the first air pipe 12. When the piston body 16 extracts the gas, the suction unit 10 opens to inhale the gas.

[0025] For further information, see Figure 6 In order to provide continuous gas to the anti-interference unit 8, the air suction unit 10 includes a second air pipe 20 fixedly connected to the cylinder body 7 through a one-way valve, and a filter 21 is fixedly connected to one end of the second air pipe 20 away from the cylinder body 7, and the bottom of the filter 21 is connected to the air suction pipe 22 through a connecting pipe, and a cannula 23 is fixed to the bottom of the air suction pipe 22; When in use, the movement of the piston body 16 generates suction to open the one-way valve on the second air pipe 20, and the gas enters the suction pipe 22 from the insertion tube 23, then enters the second air pipe 20 from the suction pipe 22, and finally enters the cylinder body 7, preparing for the next step of gas compression.

[0026] For further information, see Figure 7 In order to provide torque to the power unit 9 when the rotating hand wheel 5 is used, the transmission unit 11 includes a large gear 24 coaxially fixedly connected with the rotating hand wheel 5, an idler gear 25 is meshed on the large gear 24, a small gear 26 is meshed on one side of the idler gear 25, the middle axis of the idler gear 25 is rotatably connected to the fixed frame 6 through a bearing, the small gear 26 is fixedly sleeved with the transmission shaft 19, and the transmission shaft 19 is rotatably connected to the fixed frame 6 through a bearing; Before using the lens, the angle of the flexible lens 4 is adjusted multiple times by turning the hand wheel 5. At the same time, turning the hand wheel 5 will also drive the large gear 24 to rotate, the large gear 24 drives the idler gear 25 to rotate, and the idler gear 25 drives the small gear 26 to rotate, thereby driving the small gear 26 to rotate multiple times, and the transmission shaft 19 will also rotate multiple times, so that the power unit 9 can generate multiple reciprocating motions, so that the first air pipe 12 and the air guide hose 13 can be filled with high-pressure gas, and the stored gas will be ejected from the bent pipe 15 when the lens is used and the angle is adjusted.

[0027] For further information, see Figure 4In order to provide a multi-directional blowing action to the flexible lens 4, a plurality of curved tubes 15 are evenly distributed on one side of the annular tube 14, and the air outlet end of the curved tube 15 is obliquely opposite to the end of the flexible lens 4. Such an arrangement ensures that the blowing action can act on the lens in multiple directions, thereby achieving the desired effect.

[0028] Example 2: Please refer to Figure 6 This embodiment further explains the first embodiment, and the difference lies in optimizing the gas source.

[0029] Specifically, the air intake unit 10 includes a second air pipe 20 fixedly connected to the cylinder body 7 via a one-way valve, an end of the second air pipe 20 away from the cylinder body 7 is fixedly connected to a filter element 21, the bottom of the filter element 21 is connected to an air intake pipe 22 via a connecting pipe, and an intubation tube 23 is fixed to the bottom of the air intake pipe 22; a plurality of intubations 23 are evenly distributed on one side of the air intake pipe 22, and an end of the intubation tube 23 away from the air intake pipe 22 is fixedly plugged into the top of the visual display screen 2 and extends into the interior of the visual display screen 2.

[0030] It should be noted that the suction end of the suction unit 10 can extend into the interior of the visual display screen 2, so that the hot gas in the visual display screen 2 can be extracted, and the hot gas inside the visual display screen 2 can be further compressed into the anti-interference unit 8, which can not only improve the heat dissipation performance of the visual display screen 2, but also increase the temperature of the gas to improve the air-drying effect of the lens.

[0031] Example 3: Please refer to Figure 6 and Figure 8 This embodiment further illustrates other embodiments, and the difference lies in that the inhaled gas is further optimized.

[0032] Specifically, the air intake unit 10 includes a second air pipe 20 fixedly connected to the cylinder body 7 via a one-way valve, an end of the second air pipe 20 away from the cylinder body 7 is fixedly connected to a filter element 21, the bottom of the filter element 21 is connected to an air intake pipe 22 via a connecting pipe, and a plug 23 is fixed to the bottom of the air intake pipe 22; the filter element 21 includes a square frame 27, the top of the square frame 27 is fixed and connected to one end of the second air pipe 20, a filter screen 28 is provided inside the square frame 27, a sealing cover plate 29 is fixed to one side of the square frame 27 by screws, and the filter screen 28 is slidably connected to the inside of the square frame 27.

[0033] It should be noted that, inside the square frame 27, by designing an efficient filter screen 28 structure, the filter screen 28 can effectively intercept and remove dust in the gas to ensure the cleanliness of the gas; in addition, one side of the square frame 27 is connected to a sealing cover plate 29 by screws, and the sealing cover plate 29 can tightly seal the square frame 27 to ensure that the gas does not leak from the cover plate, while also protecting the filter screen 28 from external pollution; it is particularly worth mentioning that the filter screen 28 is slidably connected to the inside of the square frame 27. This design makes the replacement and cleaning process of the filter screen 28 extremely simple, and the operator can easily disassemble and install the filter screen 28, which greatly improves the convenience and efficiency of maintenance.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic visualization nasopharyngeal laryngoscope, comprising: A handle housing (1), a visual display screen (2) and an insertion portion (3), wherein the visual display screen (2) is fixedly connected to the top of the handle housing (1) via a bracket, and the insertion portion (3) is fixed to the bottom of the handle housing (1); It is characterized by further comprising: A bendable lens (4) is mounted on an end of the insertion portion (3) away from the handle housing (1); a rotating hand wheel (5) is mounted on the handle housing (1) for controlling the bendable lens (4) at the far end to adjust the bending angle up and down; a fixing frame (6) is fixed above the rotating hand wheel (5) and on the top of the handle housing (1); a cylinder (7) is fixedly connected to the top of the fixing frame (6) via a connecting plate; an anti-interference unit (8) for cleaning liquid adhered to the bendable lens (4) is connected to the cylinder (7); a power unit (9) is movably connected to one end of the cylinder (7); and an air suction unit (10) is provided between the other end of the cylinder (7) and the visual display screen (2); A transmission unit (11) is mounted on the bottom of the fixing frame (6), and the transmission unit (11) is used to transmit the torque of the rotating hand wheel (5) to the power unit (9) for power connection.

2. The electronic visualization nasopharyngeal laryngoscope according to claim 1, characterized in that: The anti-interference unit (8) comprises a first air pipe (12) fixedly connected to the cylinder body (7) via a one-way valve, and an air guide hose (13) is inserted into the handle housing (1), the insertion portion (3) and the flexible lens (4). One end of the air guide hose (13) is in communication with the first air pipe (12), and the other end of the air guide hose (13) is fixedly connected to an annular tube (14). The central axis of the annular tube (14) coincides with the central axis of the flexible lens (4), and the annular tube (14) is distributed at the outer edge of the flexible lens (4). A curved tube (15) is fixed to one side of the annular tube (14).

3. The electronic visualization nasopharyngeal laryngoscope according to claim 2, characterized in that: The power unit (9) comprises a piston body (16) connected to the inside of the cylinder body (7) via a piston ring sliding seal, one end of the piston body (16) is rotatably connected to a connecting rod (17) via a piston pin, one end of the connecting rod (17) away from the piston body (16) is rotatably connected to a crank (18), one end of the crank (18) is fixed with a transmission shaft (19), and the output end of the transmission unit (11) is transmission-connected to the transmission shaft (19).

4. The electronic visualization nasopharyngeal laryngoscope according to claim 2, characterized in that: The air suction unit (10) comprises a second air pipe (20) fixedly connected to the cylinder body (7) via a one-way valve, the end of the second air pipe (20) away from the cylinder body (7) being fixedly connected to a filter element (21), the bottom of the filter element (21) being connected to an air suction pipe (22) via a connecting pipe, and the bottom of the air suction pipe (22) being fixed to an intubation pipe (23).

5. The electronic visualization nasopharyngeal laryngoscope according to claim 3, characterized in that: The transmission unit (11) comprises a large gear (24) coaxially fixedly connected to the rotating hand wheel (5), an idler gear (25) meshing on the large gear (24), a small gear (26) meshing on one side of the idler gear (25), a central axis of the idler gear (25) rotatably connected to the fixed frame (6) via a bearing, the small gear (26) fixedly sleeved with the transmission shaft (19), and the transmission shaft (19) rotatably connected to the fixed frame (6) via a bearing.

6. The electronic visualization nasopharyngeal laryngoscope according to claim 4, characterized in that: The filter element (21) comprises a square frame (27), the top of the square frame (27) is fixed to and communicates with one end of the second air pipe (20), and a filter screen (28) is provided inside the square frame (27).

7. The electronic visualization nasopharyngeal laryngoscope according to claim 2, characterized in that: A plurality of the bent pipes (15) are evenly distributed on one side of the annular pipe (14), and the air outlet ends of the bent pipes (15) are obliquely opposite to the end of the flexible lens (4).

8. The electronic visualization nasopharyngeal laryngoscope according to claim 4, characterized in that: A plurality of the insert tubes (23) are evenly distributed on one side of the suction tube (22); one end of the insert tube (23) away from the suction tube (22) is fixedly plugged into the top of the visual display screen (2) and extends into the interior of the visual display screen (2).

9. The electronic visualization nasopharyngeal laryngoscope according to claim 6, characterized in that: A sealing cover plate (29) is fixed to one side of the square frame (27) by means of screws, and the filter screen (28) is slidably connected to the inside of the square frame (27).

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