Lens anti-fog assembly and endoscope with lens anti-fog assembly

Abstract

The invention discloses a lens anti-fog assembly and an endoscope with lens anti-fog, and relates to the field of diagnostic instruments. In the invention, a heat-conducting sleeve is arranged on the outer ring of the endoscope lens, and hot water can be continuously conveyed through the heat-conducting sleeve by the cooperation of a water storage tank and a circulating conveying unit, so that the hot water heats and insulates the endoscope through the heat-conducting sleeve, prevents the surface of the endoscope lens from condensing and generating water mist due to low temperature, improves the imaging clarity of the endoscope, and the hot water circulates in the heat-conducting sleeve, the circulating conveying unit and the water storage tank, and will not leak and flow into the patient's body, so that the patient's body will not be harmed during the endoscope detection process; when the endoscope lens is covered with dirt, the sealing ring can be driven by the rotary drive unit to rotate on the inner ring of the heat-conducting sleeve to open the water spray hole, and then the water in the heat-conducting sleeve is sprayed onto the surface of the endoscope lens through the water spray hole, and the lens surface is rinsed to restore the lens surface to clean.

Description

Technical Field

[0001] The invention belongs to the field of diagnostic instruments, and in particular, relates to a lens anti-fog component and an endoscope with the lens anti-fog component. Background Art

[0002] Endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It can enter the stomach through the mouth or other natural channels to enter the body to examine the lesions in the body to assist in the treatment of patients. However, when using an endoscope for inspection, when the endoscope enters the human body, the water vapor in the body encounters the endoscope lens with a lower temperature, which is easy to liquefy and produce water mist, affecting the clarity of the image, thereby affecting the normal use of the endoscope.

[0003] Chinese patent application CN115778304A discloses an anti-fog anorectal endoscope, which can continuously blow heated gas toward the endoscope lens to heat and keep the endoscope lens warm, prevent condensation on the lens surface due to the low temperature of the endoscope lens to produce water mist, and facilitate the continuous use of the endoscope.

[0004] However, the hot air it blows will spread into the patient's body, and the hot air may carry external pathogens, which can easily cause harm to the patient and is not conducive to the patient's recovery. When the endoscope is in use, in addition to the condensed water mist affecting the clarity of the lens, the lens is also easily covered by the patient's body oil, infiltrated blood, etc., affecting the clarity of the lens. Summary of the invention

[0005] In response to the problems in the related art, the present invention proposes a lens anti-fog assembly and an endoscope with a lens anti-fog assembly to overcome the technical problems existing in the existing related art that the endoscope lens is defogged by hot air, and the hot air may carry external pathogens, which may easily cause harm to the patient and be detrimental to the patient's recovery. When the endoscope is in use, in addition to the condensed water mist affecting the clarity of the lens, the lens is also easily covered by the patient's body oil, infiltrated blood, etc., which affects the clarity of the lens.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a lens anti-fogging assembly, comprising a defogger mechanism, a dirt removal mechanism and a dirt discharge mechanism, wherein the defogger mechanism comprises a heat-conducting sleeve, a water reservoir and a circulation conveying unit, wherein the heat-conducting sleeve is fixedly mounted on the outer ring of an endoscope lens, the water reservoir is arranged in an endoscope operating handle, an electric water heater for heating water is installed in the water reservoir, the water reservoir and the heat-conducting sleeve are connected through a circulation conveying unit installed in an endoscope catheter, and the circulation conveying unit can drive the hot water in the water reservoir to circulate through the heat-conducting sleeve, so that the heat-conducting sleeve continuously heats and keeps the endoscope lens warm;

[0008] The decontamination mechanism comprises a sealing ring, a plurality of water spray holes, a rotation drive unit and a valve assembly. The plurality of water spray holes are circumferentially distributed on the inner ring of the heat-conducting sleeve, and the water spray holes are located on the front side of the endoscope lens. The sealing ring is rotatably installed on the inner ring of the front end of the heat-conducting sleeve, and abuts and seals the water spray holes. The sealing ring is circumferentially provided with a plurality of through holes corresponding to the water spray holes one by one. The rotation drive unit is transmission-connected with the sealing ring, and can drive the sealing ring to rotate on the inner ring of the heat-conducting sleeve to drive the through holes on the sealing ring to make a circular motion, so that the through holes and the corresponding water spray holes are rotationally staggered or rotationally overlapped. The valve assembly is installed on the return pipeline of the circulation conveying unit, and when the rotation drive unit drives the through holes to rotate and overlap with the water spray holes to release the seal of the water spray holes, the rotation drive unit drives the valve assembly to close to disconnect the return pipeline of the circulation conveying unit.

[0009] The sewage discharge mechanism can recycle sewage generated by the cleaning and decontamination of the decontamination mechanism, and drain the recycled sewage through the endoscope catheter.

[0010] Further, the circulation conveying unit includes a water supply conduit, a return conduit and a hydraulic pump, the liquid inlet end of the hydraulic pump is connected to the water reservoir, the water outlet end of the hydraulic pump is connected to one end of the water supply conduit, the other end of the water supply conduit is connected to the water inlet of the heat-conducting sleeve, one end of the return conduit is connected to the water outlet of the heat-conducting sleeve, and the other end of the return conduit is connected to the water reservoir;

[0011] The heat-conducting sleeve is sealed inside with a heat-conducting plate which is in close contact with the surface of the endoscope lens.

[0012] Furthermore, the rotation drive unit includes a guide groove, a slide plate, a pull rope, and a slide groove. The guide groove is arranged in an arc shape on the circumferential surface of the sealing ring, and the slide groove is opened on the inner ring of the heat-conducting sleeve. The slide plate is slidably mounted in the slide groove, and the inner side surface of the slide plate is fixedly installed with a guide rod that is slidably engaged in the guide groove. One end of the pull rope is tied and connected to the end of the slide plate, and the other end of the pull rope passes through the endoscope catheter and extends to the inside of the endoscope operating handle.

[0013] Furthermore, a winding wheel is rotatably installed inside the endoscope operating handle, one end of the pull rope is wound around the winding wheel, and a connecting shaft extending to the outside of the endoscope operating handle is fixedly installed at one end of the winding wheel, and a knob is fixedly installed at the outer end of the connecting shaft.

[0014] Furthermore, the outer ring of the connecting shaft is provided with a spring sleeve fixedly mounted on the outer wall of the endoscope operating handle, and the outer end of the spring sleeve is telescopically slidably mounted with a limit lock sleeve, and the outer end of the limit lock sleeve abuts against the inner end of the knob under the elastic force of the spring inside the spring sleeve, and the abutting ends of the limit lock sleeve and the knob are both provided with limit teeth that can engage with each other.

[0015] Furthermore, a sliding rod is fixedly installed at one end of the slide plate, one end of the sliding rod is connected to the pull rope, the surface of the sliding rod is provided with a return spring abutting against the end of the slide plate, and the surface of the sliding rod is also slidably provided with a limit plate abutting against one end of the return spring, and the limit plate is fixedly installed on the outer circumferential surface of the endoscope lens.

[0016] Furthermore, the valve assembly includes a rotary valve and a push-pull rod, the rotary valve is connected and installed on the reflux duct, the upper end of the rotary valve is rotatably installed with a valve stem fixedly connected to the valve core inside the rotary valve, the top of the valve stem is fixedly installed with a valve opening and closing wrench, the valve opening and closing wrench is provided with a strip groove, the push-pull rod is fixedly installed on the bottom surface of one end of the slide plate, and the lower end of the push-pull rod is slidably engaged in the strip groove.

[0017] Furthermore, the heat-conducting sleeve is an arc-shaped structure, and a disconnected notch is provided at the bottom end, and the bottom end of the sealing ring is provided with an opening corresponding to the notch at the lower end of the heat-conducting sleeve.

[0018] Furthermore, the sewage discharge mechanism includes a sewage collecting box and a drainage pipe, the sewage collecting box is snap-fitted into the slot at the lower end of the heat-conducting sleeve, and one end of the sewage collecting box extends to the bottom of the opening, and the other end of the sewage collecting box is connected to the drainage pipe, and one end of the drainage pipe extends to the outside of the endoscope operating handle through the endoscope catheter.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, a heat-conducting sleeve is provided on the outer ring of the endoscope lens, and hot water can be continuously conveyed through the heat-conducting sleeve by the cooperation of the water storage tank and the circulating conveying unit, so that the hot water heats and keeps the endoscope warm through the heat-conducting sleeve, preventing the surface of the endoscope lens from condensing and generating water mist due to the low temperature, thereby improving the imaging clarity of the endoscope, and the hot water circulates in the heat-conducting sleeve, the circulating conveying unit and the water storage tank, and will not leak into the patient's body, thereby preventing the patient's body from being harmed during the endoscopic detection process.

[0021] 2. In the present invention, when the endoscope lens is covered by grease, infiltrated blood, etc. in the patient's body and affects the clarity of the lens, the rotary drive unit can drive the sealing ring to rotate on the inner ring of the thermal sleeve to drive the through hole on the sealing ring to make a circular motion, so that the through hole on the sealing ring and the water spray hole on the inner ring of the thermal sleeve are rotated and overlapped, thereby opening the water spray hole, and then spraying the water in the thermal sleeve onto the surface of the endoscope lens through the water spray hole to rinse the lens surface to clean off the grease, blood and other dirt covering the lens surface, so that the lens surface is restored to cleanliness, thereby ensuring the clarity of the lens during the detection process and improving the detection and diagnosis effect of the endoscope.

[0022] 3. In the present invention, when the rotary drive unit drives the through hole and the water spray hole to rotate and overlap to release the seal of the water spray hole, the rotary drive unit drives the valve assembly to close to disconnect the return pipeline of the circulation conveying unit, so that the hot water conveyed to the heat conductive sleeve no longer flows back, but is completely sprayed out through the water spray hole to rinse the surface of the endoscope lens, thereby improving the flushing pressure and flushing and decontamination effect of the hot water on the endoscope lens.

[0023] 4. In the present invention, the sewage generated by cleaning and decontamination can be recovered through the sewage discharge mechanism, and the recovered sewage can be discharged to the outside of the patient's body through the endoscope catheter, thereby preventing the cleaning sewage from causing discomfort to the patient or causing bacterial contamination in the patient's body, reducing the impact of lens flushing and decontamination on the patient, and ensuring the smooth progress of the endoscopic detection and diagnosis process.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying creative work.

[0026] Figure 1 It is one of the three-dimensional structural schematic diagrams of the endoscope of the present invention;

[0027] Figure 2 For the present invention Figure 1 A local enlarged structural schematic diagram;

[0028] Figure 3 The second schematic diagram of the three-dimensional structure of the endoscope of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B;

[0030] Figure 5 The third is a schematic diagram of the three-dimensional structure of the endoscope of the present invention;

[0031] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C;

[0032] Figure 7 For the present invention Figure 5 Schematic diagram of the local enlarged structure at D.

[0033] In the figure: 1. defogger; 11. heat-conducting sleeve; 12. water supply conduit; 13. return conduit; 14. heat-conducting plate; 15. hydraulic pump; 16. water reservoir; 2. decontamination mechanism; 21. sealing ring; 22. through hole; 23. guide groove; 24. slide plate; 25. guide rod; 26. opening; 27. knob; 28. pull rope; 29. ​​rotary valve; 210. water spray hole; 211. slide groove; 212. limit plate; 213. slide rod; 214. reset spring; 215. valve stem; 216. strip groove; 217. valve opening and closing wrench; 218. push-pull rod; 219. reel; 220. spring sleeve; 221. limit lock sleeve; 222. limit tooth; 223. connecting shaft; 3. sewage discharge mechanism; 31. sewage collection box; 32. drainage pipe;

[0034] 100. Endoscope operating handle; 200. Endoscope catheter; 300. Endoscope lens. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0037] Example 1: Please refer to Figure 1-Figure 7As shown, the present invention is a lens anti-fogging assembly, including a defogger mechanism 1, a decontamination mechanism 2 and a drainage mechanism 3. The defogger mechanism 1 includes a heat-conducting sleeve 11, a water reservoir 16 and a circulation conveying unit. The heat-conducting sleeve 11 is fixedly installed on the outer ring of the endoscope lens 300. The water reservoir 16 is arranged in the endoscope operating handle 100. An electric water heater for heating water is installed in the water reservoir 16. The water reservoir 16 is connected to the heat-conducting sleeve 11 through a circulation conveying unit installed in the endoscope catheter 200. The circulation conveying unit can drive the hot water in the water reservoir 16 to circulate through the heat-conducting sleeve 11, so that the heat-conducting sleeve 11 can continuously heat and keep warm the endoscope lens 300. The decontamination mechanism 2 includes a sealing ring 21, a plurality of water spray holes 210, a rotation driving unit and a valve assembly. The plurality of water spray holes 210 are circumferentially distributed on the inner ring of the heat-conducting sleeve 11, and the water spray holes 210 are located at the endoscope lens 30 0, the sealing ring 21 is rotatably installed on the inner ring of the front end of the heat-conducting sleeve 11, and the water spray hole 210 is abutted and sealed. A plurality of through holes 22 corresponding to the water spray holes 210 are circumferentially opened on the sealing ring 21. The rotary drive unit is in transmission connection with the sealing ring 21, and can drive the sealing ring 21 to rotate on the inner ring of the heat-conducting sleeve 11 to drive the through holes 22 on the sealing ring 21 to make circular motion, so that the through holes 22 and the corresponding water spray holes 210 are rotated to stagger or rotate to overlap. The valve assembly is installed on the return pipeline of the circulation conveying unit, and when the rotary drive unit drives the through holes 22 to rotate to overlap with the water spray holes 210 to release the seal of the water spray holes 210, the rotary drive unit drives the valve assembly to close to disconnect the return pipeline of the circulation conveying unit; the sewage discharge mechanism 3 can recycle the sewage generated by the cleaning and decontamination of the decontamination mechanism 2, and drain the recycled sewage through the endoscope catheter 200;

[0038] When the patient's body is detected and diagnosed through the endoscope, the hot water in the water storage tank 16 is driven by the circulation conveying unit to circulate continuously through the inside of the heat-conducting sleeve 11, so that the hot water continues to heat and keep warm the endoscope lens 300 after passing through the heat-conducting sleeve 11, and prevents the surface of the endoscope lens 300 from condensing and generating water mist due to the low temperature; when the endoscope lens 300 is covered with dirt such as grease and infiltrated blood in the patient's body, which affects the clarity of the lens, the sealing ring 21 is driven by the rotation driving unit to rotate on the inner ring of the heat-conducting sleeve 11, so as to drive the through hole 22 on the sealing ring 21 to make a circular motion, so that the through hole 22 on the sealing ring 21 and the water spray hole 210 of the inner ring of the heat-conducting sleeve 11 rotate and overlap, thereby opening the water spray hole 210, and spraying the hot water in the heat-conducting sleeve 11 to the endoscope lens 300 through the water spray hole 210. 00, rinse the lens surface to clean off grease, blood and other dirt covering the lens surface, so that the lens surface is restored to cleanliness, and at the same time, the rotary drive unit drives the valve assembly to close to disconnect the reflux pipeline of the circulation conveying unit, so that the hot water delivered to the heat-conducting sleeve 11 no longer flows back, but is all sprayed out through the water spray hole 210 to rinse the surface of the endoscope lens 300, thereby improving the flushing pressure and flushing and decontamination effect of the hot water on the endoscope lens 300; and the sewage discharge mechanism 3 can recycle the sewage generated by cleaning and decontamination, and drain the recovered sewage through the endoscope catheter 200 to the outside of the patient's body, thereby preventing the cleaning sewage from causing discomfort to the patient or bacterial contamination in the patient's body, reducing the impact of lens flushing and decontamination on the patient, and ensuring the smooth progress of the endoscopic detection and diagnosis process.

[0039] Example 2: Please refer to Figure 5-Figure 7 As shown, the difference between this embodiment and the above embodiment is that the circulation conveying unit includes a water supply conduit 12, a return conduit 13 and a hydraulic pump 15, the liquid inlet end of the hydraulic pump 15 is connected to a water reservoir 16, the water outlet end of the hydraulic pump 15 is connected to one end of the water supply conduit 12, the other end of the water supply conduit 12 is connected to the water inlet of the heat-conducting sleeve 11, one end of the return conduit 13 is connected to the water outlet of the heat-conducting sleeve 11, and the other end of the return conduit 13 is connected to the water reservoir 16; the heat-conducting sleeve 11 is sealed with a heat-conducting plate 14 tightly attached to the surface of the endoscope lens 300;

[0040] During defog, the hydraulic pump 15 draws hot water from the water reservoir 16 and pumps the hot water into the heat-conducting sleeve 11, wherein the heat-conducting plate 14 is a metal plate. The heat-conducting plate 14 made of metal can improve the heat conduction efficiency between the hot water and the endoscope lens 300, thereby improving the heating and heat preservation effect of the endoscope lens 300 to prevent the surface of the endoscope lens 300 from condensing and generating water mist due to the low temperature. Afterwards, the hot water in the heat-conducting sleeve 11 is transported back to the water reservoir 16 through the return conduit 13 under the water flow pressure, so that the hot water circulates in the water reservoir 16, the water supply conduit 12, the heat-conducting sleeve 11 and the return conduit 13, and continuously heats and keeps the endoscope lens 300 warm.

[0041] Example 3: Please refer to Figure 1-Figure 7 As shown, the difference between this embodiment and the above embodiment is that the rotation drive unit includes a guide groove 23, a slide plate 24, a pull rope 28, and a slide groove 211. The guide groove 23 is arranged in an arc shape on the circumferential surface of the sealing ring 21, and the slide groove 211 is opened on the inner ring of the heat-conducting sleeve 11. The slide plate 24 is slidably mounted in the slide groove 211. The inner side surface of the slide plate 24 is fixedly installed with a guide rod 25 slidably engaged in the guide groove 23. One end of the pull rope 28 is tied and connected to the end of the slide plate 24, and the other end of the pull rope 28 passes through the endoscope catheter 200 and extends to the inside of the endoscope operating handle 100; the internal rotation installation of the endoscope operating handle 100 There is a reel 219, one end of the pull rope 28 is wound on the reel 219, and one end of the reel 219 is fixedly installed with a connecting shaft 223 extending to the outside of the endoscope operating handle 100, and the outer end of the connecting shaft 223 is fixedly installed with a knob 27; one end of the slide plate 24 is fixedly installed with a slide bar 213, one end of the slide bar 213 is tied and connected with the pull rope 28, and the surface of the slide bar 213 is covered with a return spring 214 that abuts against the end of the slide plate 24, and the surface of the slide bar 213 is also slidably installed with a limit plate 212 that abuts against one end of the return spring 214, and the limit plate 212 is fixedly installed on the outer circumferential surface of the endoscope lens 300;

[0042] When the sealing ring 21 needs to be rotated to release the seal of the water spray hole 210, the knob 27 drives the connecting shaft 223 and the reel 219 to rotate, and the reel 219 reels the pull rope 28 when rotating, so that one end of the pull rope 28 moves to the right, and the slide plate 24 is pulled to the right along the slide groove 211 by the pull rope 28, and at the same time, the slide plate 24 drives the guide rod 25 to move to the right, and when the guide rod 25 moves to the right, it cooperates with the arc-shaped guide groove 23 to drive the sealing ring 21 to rotate, thereby driving the through hole 22 on the sealing ring 21 to make a circular motion, so that the through hole 22 on the sealing ring 21 and the water spray hole 210 of the inner circle of the heat-conducting sleeve 11 rotate and overlap, thereby opening the water spray hole 210 and washing and decontaminating the endoscope lens 300;

[0043] Furthermore, the outer ring of the connecting shaft 223 is provided with a spring sleeve 220 fixedly mounted on the outer wall of the endoscope operating handle 100, and the outer end of the spring sleeve 220 is telescopically slidably mounted with a limit lock sleeve 221, and the outer end of the limit lock sleeve 221 abuts against the inner end of the knob 27 under the elastic force of the spring inside the spring sleeve 220, and the abutting ends of the limit lock sleeve 221 and the knob 27 are both provided with limit teeth 222 that can engage with each other;

[0044] When the knob 27 is rotated to drive the winding wheel 219 to rewind the draw cord 28, the knob 27 can retract the limit lock sleeve 221 into the spring sleeve 220 through the inclined surface of the limit tooth 222, so as to release the lock of the knob 27 by the limit lock sleeve 221, so that the knob 27 can rotate normally. When the draw cord 28 is wound, the limit lock sleeve 221 can be reset and slide toward the direction of the knob 27 under the action of the reset elastic force of the spring inside the spring sleeve 220, so that the limit lock sleeve 221 and the knob 27 are again locked and limited by the limit tooth 222, and then the limit lock sleeve 221 and the winding wheel 219 are automatically locked and locked to prevent the draw cord 28 from being wound. The reel 219 rotates in the reverse direction to unwind the reel under the pulling force of the pull rope 28; and when the endoscope lens 300 is rinsed and decontaminated and the water spray hole 210 needs to be sealed again, the knob 27 is rotated in the reverse direction, thereby driving the reel 219 to rotate in the reverse direction to unwind the pull rope 28. At this time, the slide plate 24 moves to the left and resets under the reset elastic force of the reset spring 214, and during the reset, the guide rod 25 cooperates with the guide groove 23 to drive the sealing ring 21 to rotate and reset, so that the through hole 22 on the sealing ring 21 and the water spray hole 210 of the inner circle of the thermal sleeve 11 are rotated and staggered, so that the sealing ring 21 abuts against the water spray hole 210 and seals it again.

[0045] Example 4: Please refer to Figure 5 , Figure 6 As shown, the difference between this embodiment and the above embodiment is that the valve assembly includes a rotary valve 29 and a push-pull rod 218, the rotary valve 29 is connected and installed on the reflux conduit 13, the upper end of the rotary valve 29 is rotatably installed with a valve stem 215 fixedly connected to the internal valve core of the rotary valve 29, the top of the valve stem 215 is fixedly installed with a valve opening and closing wrench 217, the valve opening and closing wrench 217 is provided with a strip groove 216, the push-pull rod 218 is fixedly installed on the bottom surface of one end of the slide plate 24, and the lower end of the push-pull rod 218 is slidably engaged in the strip groove 216;

[0046] The rotary valve 29 is initially in an open state so that hot water can flow normally through the return conduit 13. When the slide plate 24 slides to the right to drive the water spray hole 210 to open to rinse and remove dirt from the endoscope lens 300, the slide plate 24 drives the push-pull rod 218 to move to the right synchronously. At this time, the push-pull rod 218 pushes the valve opening and closing wrench 217 counterclockwise through the strip groove 216 to rotate, thereby driving the valve stem 215 and the valve core to rotate, so that the rotary valve 29 is closed, and the return conduit 13 is sealed and disconnected, so that the hot water delivered to the heat-conducting sleeve 11 no longer flows back through the return conduit 13, but is all sprayed out through the water spray hole 210 to rinse the endoscope lens 300. The surface of the head 300 is rinsed, thereby increasing the flushing pressure and flushing and decontamination effect of the hot water on the endoscope lens 300; and when the flushing and decontamination of the endoscope lens 300 is completed, the sliding plate 24 is reset and moves to drive the sealing ring 21 to seal the water spray hole 210 again, and the sliding plate 24 drives the push-pull rod 218 to move to the left and reset synchronously. At this time, the push-pull rod 218 pushes the valve opening and closing wrench 217 clockwise to rotate through the strip groove 216, and then drives the valve stem 215 and the valve core to rotate clockwise and reset, so that the rotary valve 29 is restored to the open state, so that the hot water in the heat conductive sleeve 11 can flow back to the water storage tank 16 through the reflux conduit 13 again.

[0047] Example 5: Please refer to Figure 1-Figure 7 As shown, the difference between this embodiment and the above embodiment is that the heat-conducting sleeve 11 is an arc-shaped structure, and a disconnected notch is provided at the bottom end, and an opening 26 corresponding to the notch at the lower end of the heat-conducting sleeve 11 is provided at the bottom end of the sealing ring 21; the sewage discharge mechanism 3 includes a sewage collecting box 31 and a drainage pipe 32, the sewage collecting box 31 is clamped and installed in the notch at the lower end of the heat-conducting sleeve 11, and one end of the sewage collecting box 31 extends to the bottom of the opening 26, and the other end of the sewage collecting box 31 is connected to the drainage pipe 32, and one end of the drainage pipe 32 extends to the outside of the endoscope operating handle 100 through the endoscope catheter 200;

[0048] When the surface of the endoscope lens 300 is flushed, the sewage generated by the flushing can slide down along the surface of the endoscope lens 300 and drip into the sewage collecting box 31 through the opening 26 at the bottom end of the sealing ring 21, so that the flushing sewage is collected by the sewage collecting box 31, and at the same time, the sewage in the sewage collecting box 31 is drained to the outside of the patient's body through the drainage tube 32.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. A lens anti-fog assembly, characterized in that: It includes a defogger mechanism, a dirt removal mechanism and a dirt discharge mechanism, wherein the defogger mechanism includes a heat-conducting sleeve, a water reservoir and a circulation conveying unit, wherein the heat-conducting sleeve is fixedly mounted on the outer ring of the endoscope lens, the water reservoir is arranged in the endoscope operating handle, an electric water heater for heating water is installed in the water reservoir, the water reservoir and the heat-conducting sleeve are connected through a circulation conveying unit installed in the endoscope catheter, and the circulation conveying unit can drive the hot water in the water reservoir to circulate through the heat-conducting sleeve, so that the heat-conducting sleeve continuously heats and keeps the endoscope lens warm; The decontamination mechanism comprises a sealing ring, a plurality of water spray holes, a rotation drive unit and a valve assembly. The plurality of water spray holes are circumferentially distributed on the inner ring of the heat-conducting sleeve, and the water spray holes are located on the front side of the endoscope lens. The sealing ring is rotatably installed on the inner ring of the front end of the heat-conducting sleeve, and abuts and seals the water spray holes. The sealing ring is circumferentially provided with a plurality of through holes corresponding to the water spray holes one by one. The rotation drive unit is transmission-connected with the sealing ring, and can drive the sealing ring to rotate on the inner ring of the heat-conducting sleeve to drive the through holes on the sealing ring to make a circular motion, so that the through holes and the corresponding water spray holes are rotationally staggered or rotationally overlapped. The valve assembly is installed on the return pipeline of the circulation conveying unit, and when the rotation drive unit drives the through holes to rotate and overlap with the water spray holes to release the seal of the water spray holes, the rotation drive unit drives the valve assembly to close to disconnect the return pipeline of the circulation conveying unit. The rotary drive unit comprises a guide groove, a slide plate, a pull rope, and a slide groove. The guide groove is arranged in an arc shape on the circumferential surface of the sealing ring. The slide groove is opened on the inner ring of the heat-conducting sleeve. The slide plate is slidably mounted in the slide groove. A guide rod slidably mounted in the guide groove is fixedly mounted on the inner side surface of the slide plate. One end of the pull rope is tied and connected to the end of the slide plate, and the other end of the pull rope passes through the endoscope catheter and extends to the inside of the endoscope operating handle. The sewage discharge mechanism can recycle sewage generated by the cleaning and decontamination of the decontamination mechanism, and drain the recycled sewage through the endoscope catheter.

2. The lens anti-fog assembly according to claim 1, characterized in that: The circulation conveying unit comprises a water supply conduit, a return conduit and a hydraulic pump, wherein the liquid inlet end of the hydraulic pump is communicated with a water reservoir, the water outlet end of the hydraulic pump is communicated with one end of the water supply conduit, the other end of the water supply conduit is communicated with the water inlet of the heat-conducting sleeve, one end of the return conduit is communicated with the water outlet of the heat-conducting sleeve, and the other end of the return conduit is communicated with the water reservoir; The heat-conducting sleeve is sealed inside with a heat-conducting plate which is in close contact with the surface of the endoscope lens.

3. The lens anti-fog assembly according to claim 2, characterized in that: A reel is rotatably mounted inside the endoscope operating handle, one end of the pull rope is wound around the reel, and a connecting shaft extending to the outside of the endoscope operating handle is fixedly mounted on one end of the reel, and a knob is fixedly mounted on the outer end of the connecting shaft.

4. The lens anti-fog assembly according to claim 3, characterized in that: The outer ring of the connecting shaft is provided with a spring sleeve fixedly mounted on the outer wall of the endoscope operating handle, and the outer end of the spring sleeve is telescopically slidably mounted with a limit lock sleeve, and the outer end of the limit lock sleeve abuts against the inner end of the knob under the elastic force of the spring inside the spring sleeve, and the abutting ends of the limit lock sleeve and the knob are both provided with limit teeth that can engage with each other.

5. The anti-fog lens assembly according to claim 2, characterized in that: A sliding rod is fixedly installed at one end of the slide plate, and one end of the sliding rod is connected to a pull rope. The surface of the sliding rod is provided with a return spring that abuts against the end of the slide plate. A limiting plate that abuts against one end of the return spring is also slidably installed on the surface of the sliding rod. The limiting plate is fixedly installed on the outer circumferential surface of the endoscope lens.

6. The anti-fog lens assembly according to claim 5, characterized in that: The valve assembly includes a rotary valve and a push-pull rod. The rotary valve is connected and installed on the reflux conduit. A valve stem fixedly connected to the valve core inside the rotary valve is rotatably installed on the upper end of the rotary valve. A valve opening and closing wrench is fixedly installed on the top of the valve stem. A strip groove is provided on the valve opening and closing wrench. The push-pull rod is fixedly installed on the bottom surface of one end of the slide plate, and the lower end of the push-pull rod is slidably engaged in the strip groove.

7. The anti-fog lens assembly according to claim 1, characterized in that: The heat-conducting sleeve is an arc-shaped structure, and a disconnected notch is arranged at the bottom end, and an opening corresponding to the notch at the lower end of the heat-conducting sleeve is arranged at the bottom end of the sealing ring.

8. The lens anti-fog assembly according to claim 7, characterized in that: The sewage discharge mechanism includes a sewage collecting box and a drainage pipe. The sewage collecting box is snap-fitted into the slot at the lower end of the heat-conducting sleeve, and one end of the sewage collecting box extends below the opening. The other end of the sewage collecting box is connected to the drainage pipe, and one end of the drainage pipe extends to the outside of the endoscope operating handle through the endoscope catheter.

9. An endoscope with anti-fogging lens, characterized in that: The invention comprises the anti-fog assembly for a lens as described in any one of claims 1 to 8.

Images