Endoscope

Abstract

The invention provides an endoscope which comprises a disposable passive endoscope sheath and a reusable endoscope body, the passive endoscope sheath comprises an endoscope sheath handle, an insertion part and an optical fiber, the endoscope sheath handle is arranged at the near end of the insertion part, and an endoscope body access port is formed in the endoscope sheath handle; an optical fiber channel and a camera shooting channel are arranged in the insertion part, and the lens body access port is communicated with the camera shooting channel; the optical fiber is arranged in the optical fiber channel, the near end of the optical fiber is provided with a first optical fiber connecting part, the first optical fiber connecting part is arranged on the endoscope sheath handle, the first optical fiber connecting part is used for being directly or indirectly connected with a light source, and the light source conducts illumination through the optical fiber; the endoscope body comprises a camera shooting assembly and an endoscope body handle, the camera shooting assembly is connected to the far end of the endoscope body handle, the camera shooting assembly extends into the camera shooting channel through the endoscope body access port, and the endoscope body handle is detachably connected with the endoscope sheath handle.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an endoscope. Background Art

[0002] An endoscope is a commonly used medical device that can enter the human body through natural body orifices or surgical incisions to assist doctors in diagnosing and treating diseases. With the development of technology, non-invasive and direct visualization of tissues and organs during examinations has received increasing attention. Compared with technologies such as CT and ultrasound, an endoscope can directly observe tissue and organ lesions without potential radiation and other damages. Secondly, corresponding biopsy, resection and other surgeries can be performed under the endoscope.

[0003] Currently, the mainstream endoscopes are reusable endoscopes. Since reusable endoscopes come into contact with patients, medical staff, etc., they need to be sterilized and disinfected. The sterilization problem of electronic endoscopes is also a hot topic in the field of endoscopes, including the following points:

[0004] The first point is sterilization effectiveness. Since electronic endoscopes contain electronic components inside and are sensitive to high temperatures, currently, the industry generally uses hydrogen peroxide low-temperature plasma sterilization method for sterilization. However, compared with traditional high-temperature and high-humidity sterilization, its working principle is more complex, relying on the simultaneous action of oxidants, ultraviolet rays, and high-energy particles to achieve the expected sterilization effect. If problems such as equipment aging, oxidant failure, and insufficient generation of plasma state occur in the hospital, its sterilization effectiveness is usually difficult to guarantee, and incomplete sterilization is the most important reason for cross-infection of patients.

[0005] The second point is sterilization tolerance. Since hydrogen peroxide used in hydrogen peroxide low-temperature plasma sterilization is a strong oxidant and will produce ultraviolet rays, it will quickly cause material aging. If general engineering plastics or rubbers are used, they will age and fail after 50 - 100 sterilization cycles, resulting in equipment failure and a very short service life. If special plastics such as PEEK (polyetheretherketone) and PPSU (polyphenylsulfone) and fluororubbers are used to prepare key components, although the service life will be extended, their production costs will increase significantly.

[0006] The third point is sterilization cost, including time cost and consumable cost. For the low-temperature plasma sterilization used for electronic endoscopes, thorough cleaning and drying are required before sterilization. Usually, one reprocessing cycle takes 1.5 - 2 hours. The consumables are mainly hydrogen peroxide sterilants, and the consumable cost for a single low-temperature plasma sterilization is approximately 30 - 100 yuan, which varies depending on the type, mode, and inner chamber space of the sterilizer.

[0007] The above three sterilization problems have increased the threshold for hospitals to use reusable electronic endoscopes.

[0008] To solve the sterilization problem, disposable electronic endoscopes have emerged as a result.

[0009] However, disposable electronic endoscopes are fully disposable endoscopes, that is, they need to be discarded entirely after one use. Therefore, the cost is too high, especially the prices of the camera module and the data transmission cable with high performance are expensive. Since the data of the camera module needs to be transmitted over a long distance, there is usually a decoding or signal conversion circuit module in the middle to ensure the stability of signal transmission. It is expensive to directly discard all of them, and it will cause a large amount of electronic components to pollute the environment.

[0010] Secondly, in the structural design of disposable endoscopes, cost reduction is the main factor, and the overall reliability of the product is reduced, especially the electrical safety performance. Organs with solutions such as the bladder and uterine cavity usually have liquids in the organs that are conductors, which are more likely to cause safety hazards such as product leakage current and breakdown voltage. Moreover, high-frequency energy instruments such as lasers and electrocision are usually used for treatment in the bladder, uterine cavity, digestive organs, etc. If the doctor makes a wrong operation, it is very likely to damage the insulation medium of the disposable endoscope, further exacerbating the electrical safety hazard.

[0011] In order to reduce the cost of disposable electronic endoscopes, some companies have proposed a solution to reuse the camera module, while the remaining components including the data transmission cable and signal conversion module are disposable. Due to the pressure of the disposable use cost, the quality of the data transmission cable is not very good, resulting in obvious defects in aspects such as the stable transmission of data and the anti-interference performance of the product; secondly, the cost of directly discarding the cable about 3 meters long from the endoscope body to the endoscope host and the signal conversion circuit module is relatively high. Especially as the clarity of CMOS cameras is getting higher and higher and the data transmission volume is large, obviously, disposable data cables cannot meet the requirements of data transmission stability. Summary of the Invention

[0012] To solve the above technical problems, an embodiment of the present invention provides an endoscope, which includes a disposable passive sheath and a reusable endoscope body. The passive sheath includes a sheath handle, an insertion part, and an optical fiber. The sheath handle is arranged at the proximal end of the insertion part, and a body access port is arranged on the sheath handle; an optical fiber channel and a camera channel are arranged in the insertion part, and the body access port is communicated with the camera channel; the optical fiber is arranged in the optical fiber channel, and a first optical fiber connection part is arranged at the proximal end of the optical fiber, and the first optical fiber connection part is arranged on the sheath handle. The first optical fiber connection part is used to directly or indirectly connect a light source, and the light source illuminates through the optical fiber.

[0013] The endoscope body includes a camera assembly and a body handle. The camera assembly is connected to the distal end of the body handle. The camera assembly extends into the camera channel through the body access port, and the body handle is detachably connected to the sheath handle.

[0014] Optionally, the light source is located outside the endoscope; the first optical fiber connection part is arranged on the sheath handle, and the first optical fiber connection part is used for directly connecting the light source.

[0015] Optionally, the light source is arranged inside the body handle, and a second optical fiber connection part is further arranged on the body handle. The light source is connected to the second optical fiber connection part; after the body is inserted into the passive sheath, the first optical fiber connection part is connected to the second optical fiber connection part.

[0016] Optionally, one of the first optical fiber connection part and the second optical fiber connection part is an optical fiber connector, and the other is an optical fiber interface adapted to the optical fiber connector.

[0017] Optionally, the insertion part has a head end, the imaging channel penetrates through the head end, a camera light window is arranged on the head end, and the camera light window seals the distal end of the imaging channel.

[0018] Optionally, a nozzle is further arranged on the head end, and the nozzle faces the outer end face of the camera light window;

[0019] A water and gas pipe is further arranged inside the insertion part, and the distal end of the water and gas pipe is connected to the nozzle; the proximal end of the water and gas pipe is connected to a water source and a gas source through a water pipe and a gas pipe respectively.

[0020] Optionally, the insertion part has a bendable section, the bendable section is a bendable structure, or the bendable section is made of an elastic material;

[0021] The insertion rod has a bending part corresponding to the bendable section, a bending driving mechanism is arranged on the body handle or the sheath handle, the bending driving mechanism is drivingly connected to the bending part, and the bending part bends under the drive of the bending driving mechanism.

[0022] Optionally, a first mechanical connection part is arranged on the sheath handle, a second mechanical connection part corresponding to the first mechanical connection part is arranged on the body handle, and the first mechanical connection part is detachably connected to the second mechanical connection part.

[0023] Optionally, a wireless transmission module is arranged on the body handle, and the imaging assembly is wirelessly connected to an image processing host through the wireless transmission module.

[0024] Optionally, the wireless transmission module includes a wireless transmission unit, the graphics processing host includes a wireless reception unit, and the wireless transmission unit is wirelessly connected to the wireless reception unit;

[0025] The imaging assembly includes a camera and an insertion rod. The camera is connected to the mirror body handle through the insertion rod. The camera is electrically connected to the wireless transmission unit through a data cable. One end of the data cable is connected to the camera, and the other end passes through the insertion rod and is connected to the wireless transmission unit.

[0026] Optionally, the wireless transmission module further includes a power supply unit. The power supply unit is connected to the wireless reflection unit. If the light source is located inside the mirror body handle, the power supply unit is also connected to the light source.

[0027] Optionally, a wireless interface is provided on the mirror body handle. The wireless transmission module is fixedly or detachably connected to the wireless interface.

[0028] Optionally, an endoscope plug is further provided on the mirror body handle. The imaging assembly is electrically connected to the endoscope plug, and the endoscope plug is used to connect to an image processing host.

[0029] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0030] In the endoscope provided by the present invention, by using a disposable passive mirror sheath and a reusable mirror body, relevant personnel can only come into contact with the disposable passive mirror sheath during use, and are completely isolated from the repeatedly used mirror body, effectively avoiding the occurrence of bacterial contamination and other situations, reducing the risk of surgical infection, and being convenient, safe and reliable to use. Therefore, in the present invention, sterilization and disinfection and other treatments of the mirror body can be avoided or reduced, and thus the problems brought by sterilization and disinfection and other treatments can be avoided or alleviated. In addition, since only the passive mirror sheath is disposable, it is beneficial to reduce costs.

[0031] Moreover, the present invention reuses the imaging assembly and the data cable for transmitting imaging data. Therefore, the reused data cable selects high-quality cables, ensuring the stability of data transmission and improving the anti-interference performance of the product, etc. Even in the face of a high-definition camera with a large data transmission volume, the requirement for data transmission stability can be met.

[0032] And, the optical fiber is mainly made of glass (silica) or plastic (PPMA, PS, etc.), which belongs to an insulating material and does not conduct electricity. Therefore, the present invention solves the electrical safety problem of the endoscope in complex surgical procedures such as inspection in liquids (bladder, uterine cavity, digestive organs, etc.) and using high-frequency energy instruments through a disposable passive and non-electrified mirror sheath. Even in the case of the failure of the mirror sheath seal, the electrical safety performance of the product can be ensured.

[0033] Furthermore, the present invention uses plastic optical fiber illumination, which has low cost and higher optical performance. In the case of using high-brightness illumination, compared with LEDs, it will not generate a large amount of heat to cause a sharp increase in the temperature of the end of the endoscope, reducing the damage to tissues or organs.

[0034] Furthermore, by using a light source and cooperating with image processing through lights of different spectral bands, functions such as tumor screening and bleeding point detection can be performed.

[0035] Furthermore, if dust, grease or other impurities adhere to the outer end face of the camera light window (the end face facing the human tissue is the outer end face, and the end face facing the camera channel is the inner end face), especially in the digestive organs such as the stomach and intestines where there is mucus, this mucus is particularly likely to stick to the camera light window, which will in turn affect the clarity and quality of the image, and may even cause the image to be blurred or distorted. Therefore, the present invention is provided with a nozzle at the head end of the insertion part, and the nozzle faces the outer end face of the camera light window. During cleaning, first use high-pressure water flow to wash the outer end face of the camera light window clean, and then use air to blow away the water droplets on the outer end face of the camera light window, ensuring the cleanliness of the outer end face of the camera light window and ensuring that the camera has a clear field of view.

[0036] Furthermore, in the prior art, whether it is a disposable endoscope or a reusable endoscope, the endoscope handle is connected to the image processing host through a connecting wire. When the doctor manipulates the handle, there will be rotations in different directions, and the long connecting wire on the handle will affect the doctor's operation and also increase the difficulty of aseptic isolation. The present invention is provided with a wireless transmission module on the endoscope body handle, and the imaging component is wirelessly connected to the image processing host through the wireless transmission module. By integrating a wireless transmission module on the endoscope body handle, the present invention increases the convenience of use by doctors and reduces the reliability of repeated disinfection or aseptic isolation of the redundant parts.

[0037] Furthermore, the present invention arranges the bending drive mechanism on the endoscope body handle, further increasing the reusable parts and reducing the disposable parts, greatly reducing the disposal cost, reducing medical waste, and thus reducing environmental pollution.

[0038] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0040] Figure 1It is a schematic structural diagram of an endoscope provided by an embodiment of the present invention;

[0041] Figure 2 It is a schematic structural diagram of a passive mirror sheath provided by an embodiment of the present invention;

[0042] Figure 3 It is a schematic structural diagram of the head end of the insertion part provided by an embodiment of the present invention;

[0043] Figure 4 It is a schematic structural diagram of the bendable section of the insertion part provided by an embodiment of the present invention;

[0044] Figure 5 It is a schematic structural diagram of the main body of the insertion part provided by an embodiment of the present invention;

[0045] Figure 6 It is a schematic structural diagram of the mirror body provided by an embodiment of the present invention;

[0046] Figure 7 It is a schematic structural diagram of a wireless transmission module provided by an embodiment of the present invention. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices. The terms "upper" and "above" and any variations thereof are intended to describe the positional relationship and do not represent a direct contact relationship between the described objects.

[0049] Please refer to Figures 1 to 7, the present invention provides an endoscope, which includes a disposable passive sheath 1 and a reusable endoscope body 2. The passive sheath 1 includes a sheath handle 12, an insertion portion 11 and an optical fiber. The sheath handle 12 is provided at the proximal end of the insertion portion 11, and a body access port is provided on the sheath handle 12. An optical fiber channel 14 and an imaging channel 13 are provided in the insertion portion 11, and the body access port communicates with the imaging channel 13; the optical fiber is disposed in the optical fiber channel 14, and a first optical fiber connection portion 15 is provided at the proximal end of the optical fiber. The first optical fiber connection portion 15 is disposed on the sheath handle 12, and the first optical fiber connection portion 15 is used to directly or indirectly connect to a light source, and the light source illuminates through the optical fiber.

[0050] The endoscope body 2 includes an imaging component 21 and a body handle 22. The imaging component 21 is connected to the distal end of the body handle 22. The imaging component 21 extends into the imaging channel 13 through the body access port, and the body handle 22 is detachably connected to the sheath handle 12.

[0051] In the endoscope provided by the present invention, by using the disposable passive sheath 1 and the reusable endoscope body 2, when relevant personnel use it, they will only come into contact with the disposable passive sheath 1, and are completely isolated from the repeatedly used endoscope body 2, effectively avoiding the occurrence of situations such as bacterial contamination, reducing the risk of surgical infection, and being convenient to use, safe and reliable. Therefore, in the present invention, sterilization and disinfection treatments of the endoscope body 2 can be avoided or reduced, thereby avoiding or alleviating the problems brought about by sterilization and disinfection treatments. In addition, since only the passive sheath 1 is disposable, it is beneficial to reduce costs.

[0052] Moreover, in the present invention, the imaging component 21 and the data cable for transmitting imaging data are reused. Therefore, the reused data cable is preferably a high-quality cable, which ensures the stability of data transmission and improves the anti-interference performance of the product, etc. Even in the face of a high-definition camera with a large amount of data transmission, it can meet the requirements of data transmission stability.

[0053] Furthermore, the optical fiber is mainly made of glass (silicon dioxide) or plastic (PPMA, PS, etc.), which belongs to an insulating material and does not conduct electricity. Therefore, the present invention solves the electrical safety problem of the endoscope in complex surgical procedures such as examining in the liquid of an organ (bladder, uterine cavity, digestive organ, etc.) and using high-frequency energy instruments through a disposable passive and non-electrified sheath. Even in the case of sheath seal failure, the electrical safety performance of the product can be ensured.

[0054] Moreover, the present invention uses plastic optical fiber for illumination, which has low cost and higher optical performance. In the case of using high-brightness illumination, compared with LEDs, it will not generate a large amount of heat to cause a sharp increase in the temperature of the distal end of the endoscope, reducing the damage to tissues or organs.

[0055] Furthermore, by using a light source and combining lights of different spectral bands with image processing, functions such as tumor screening and bleeding point detection can be performed.

[0056] In the present invention, the light source can be an external light source, i.e., located outside the endoscope; the light source can also be an internal light source, i.e., located inside the endoscope.

[0057] As an embodiment, the light source is located outside the endoscope.

[0058] In this example, the first optical fiber connection part 15 is directly arranged on the sheath handle 12 for directly connecting the light source. That is, the light source is connected to the optical fiber through the first optical fiber connection part 15, and the light source illuminates through the optical fiber to provide sufficient light to ensure that the doctor can clearly see the surgical area, so as to perform precise operations.

[0059] As a second embodiment, the light source is built into the body handle 22.

[0060] Specifically, the first optical fiber connection part 15 can be located inside the sheath handle 12 or outside the sheath handle 12, and this embodiment does not limit this. The light source is arranged inside the body handle 22, and a second optical fiber connection part 2203 is also provided on the body handle 22. The light source is connected to the second optical fiber connection part 2203. After the body 2 is inserted into the passive sheath 1, the first optical fiber connection part 15 is connected to the second optical fiber connection part 2203, so that the power supply is connected to the optical fiber, realizing that the light source illuminates through the optical fiber to provide sufficient light to ensure that the doctor can clearly see the surgical area, so as to perform precise operations.

[0061] This embodiment does not limit the specific structures of the first optical fiber connection part 15 and the second optical fiber connection part 2203, which can be set according to actual usage requirements.

[0062] To improve the connection stability between the first optical fiber connection part 15 and the second optical fiber connection part 2203, the first optical fiber connection part 15 and the second optical fiber connection part 2203 are connected in a plug-in manner. For example, one of the first optical fiber connection part 15 and the second optical fiber connection part 2203 is an optical fiber connector, and the other is an optical fiber interface adapted to the optical fiber connector.

[0063] To ensure the stability of the overall structure after the lens body 2 is inserted into the passive lens sheath 1, after the lens body 2 is inserted into the passive lens sheath 1, the lens body 2 is fixedly connected to the passive lens sheath 1. At the same time, it is also necessary to ensure that the lens body 2 can be detachably separated from the passive lens sheath 1. Therefore, in an embodiment of the present invention, a first mechanical connection portion 1201 is provided on the lens sheath handle 12, and a second mechanical connection portion 2201 corresponding to the first mechanical connection portion 1201 is provided on the lens body handle 22. The first mechanical connection portion 1201 and the second mechanical connection portion 2201 are detachably connected. That is, when the lens body 1 is inserted into the passive lens sheath 1, the first mechanical connection portion 1201 and the second mechanical connection portion 2201 are fixedly connected; when the lens body 2 is separated from the passive lens sheath 1, the first mechanical connection portion 1201 and the second mechanical connection portion 2201 are separated.

[0064] This embodiment does not specifically limit the detachable connection method between the first mechanical connection portion 1201 and the second mechanical connection portion 2201. For example, thread connection, snap connection, etc. can be used. For the convenience of operation, it is preferred that the first mechanical connection portion 1201 and the second mechanical connection portion 2201 are snap-connected.

[0065] The insertion portion 11 has a head end 1103. The imaging channel 13 penetrates through the head end 1103. A camera optical window 18 is provided on the head end 1103. The camera optical window 18 seals the distal end of the imaging channel 13, aiming to separate the camera from human tissues and not affect the imaging effect.

[0066] If dust, grease or other impurities adhere to the outer end face of the camera optical window 18 (the end face facing the human tissue is the outer end face, and the end face facing the imaging channel 13 is the inner end face), especially in the digestive organs such as the stomach and intestines where there is mucus, this mucus is particularly likely to stick to the camera optical window 18, which will affect the clarity and quality of the image, and may even cause the image to be blurred or distorted. Therefore, it is necessary to clean the outer end face of the camera optical window 18. During cleaning, first use a high-pressure water stream to wash the outer end face of the camera optical window 18 clean, and then use air to blow away the water droplets on the outer end face of the camera optical window 18 to ensure the cleanliness of the outer end face of the camera optical window 18 and ensure that the camera has a clear field of view.

[0067] Specifically, a nozzle mounting port is further provided on the head end 1103. The nozzle 19 is sealingly mounted on the nozzle mounting port, and the nozzle 19 faces the outer end face of the camera optical window 18, aiming to facilitate spraying water and air on the outer end face of the camera optical window 18.

[0068] A water and gas pipe 112 is further provided in the insertion portion 11. The distal end of the water and gas pipe 112 is connected to the nozzle 19, and the proximal end of the water and gas pipe 112 is connected to a water source and a gas source through a water pipe and a gas pipe respectively.

[0069] The water pipe and the air pipe can be located outside the insertion part 11 or extend into the insertion part 11. This embodiment does not limit this.

[0070] As a specific implementation manner, the water pipe and the air pipe are located outside the insertion part 11. Specifically, a water and gas interface 17 is provided on the sheath handle 12, and the water and gas pipe 112 is communicated with the water and gas interface 17. The water and gas interface 17 is used to install a first control valve, and this first control valve is used to connect to an external water source and air source through the water pipe and the air pipe respectively.

[0071] In this embodiment, the first control valve is a three-way control valve, which includes an air connection port, a water connection port and an outlet. The air connection port is connected to the air source through an air pipe, the water connection port is connected to the water source through a water pipe, and the outlet is communicated with the water and gas interface 17. During cleaning, first connect the water source to the nozzle 19 through the first control valve, and wash the outer end face of the camera optical window 18 with water through the nozzle 19. Then connect the air source to the nozzle 19 through the first control valve, and blow air through the nozzle 19 to dry the outer end face of the camera optical window 18.

[0072] In this embodiment, since the water and gas pipe 112 runs through the entire insertion part 11, therefore, if the length of the water and gas pipe 112 is too long, it will cause the switching line of the water and gas introduced into the nozzle to be too long, and then cause the problem of too slow switching response.

[0073] To solve this technical problem, as another specific implementation manner, the water pipe 114 and the air pipe 115 are extended into the insertion part 11.

[0074] Specifically, the water and gas pipe 112 is located at the distal end inside the insertion part 11, that is, the distal end of the water and gas pipe 112 is connected to the nozzle 19, the proximal end of the water and gas pipe 112 is respectively connected to the distal ends of the water pipe 114 and the air pipe 115, and the proximal ends of the water pipe 114 and the air pipe 115 both pass through the sheath handle 12 and are connected to the external water source and air source.

[0075] To facilitate the switching of the water and gas introduced into the nozzle, a water and gas interface 17 is provided on the sheath handle 12, and the water and gas interface 17 is used to install a second control valve, and the water pipe 114 and the air pipe 115 are respectively connected to the water source and the air source through this second control valve.

[0076] In this specific embodiment, the second control valve is a four-way valve, which includes an air inlet, a water inlet, an air outlet, and a water outlet. The air inlet is used to connect to a gas source, the water inlet is used to connect to a water source, the water outlet is used to connect to a water pipe 114, and the air outlet is used to connect to an air pipe 115. During cleaning, first, the water source is connected to the water pipe through the second control valve. Then, the water pipe is connected to the nozzle 19 through the water-air pipe 112, and the outer end face of the camera optical window 18 is washed clean with water through the nozzle 19. Next, the gas source is connected to the nozzle 19 through the water pipe and the water-air pipe 112 in sequence through the second control valve, and air is blown through the nozzle 19 to dry the outer end face of the camera optical window 18.

[0077] The present invention does not limit the specific structure of the insertion portion 11, which can be set according to actual usage requirements. As an embodiment, the insertion portion 11 further has a bendable section 1102, and the bendable section 1102 is located proximal to the head end 1103. For the convenience of describing the structure of the insertion portion 11, in this embodiment, the insertion portion 11 includes an insertion portion main body section 1101, a bendable section 1102, and a head end 1103. The proximal end of the insertion portion main body section 1101 is fixedly connected to the sheath handle 12, and the distal end of the insertion portion main body section 1101 is integrally connected to the head end 1103 through the bendable section 1102.

[0078] The water-air pipe 112 is located within the bendable section 1102, and the water pipe 114 and the air pipe 115 are located within the insertion portion main body section 1101.

[0079] The first control valve and the second control valve can be manual valves or electric valves, and this embodiment does not limit this.

[0080] The bendable section 1102 of the insertion portion 11 has bendability. As an embodiment, the bendable section 1102 is a bendable structure, such as a snake bone structure. As another embodiment, the bendable section 1102 is made of an elastic material.

[0081] In this embodiment, the optical fiber is located within the optical fiber channel 14, and the distal end of the optical fiber can extend to the head end 1103 of the insertion portion 11. The optical fiber channel 14 penetrates through the head end 1103, that is, the head end 113 is provided with an optical fiber channel outlet 1401. The optical fiber channel outlet 1401 can be a sealed structure or an unsealed open structure, and this embodiment does not limit this.

[0082] As an embodiment, the head end 1103 is further provided with an optical fiber optical window, and the optical fiber optical window seals the distal end of the optical fiber channel 14, that is, on the optical fiber channel outlet 1401. The purpose is to separate the optical fiber from human tissues and also not affect the lighting effect. Of course, an optical fiber optical window may not be provided on the optical fiber channel outlet 1401, and the optical fiber is directly fixed on the head end 113.

[0083] The endoscope and the image processing host can be connected by wire or wirelessly, and the present invention does not limit this.

[0084] As an embodiment, an endoscope plug is provided on the mirror body handle 22, the imaging component 21 is electrically connected to the endoscope plug, and the endoscope plug is used to connect to the image processing host.

[0085] When the endoscope is connected to the image processing host by wire, when the doctor manipulates the handle, there will be rotations in different directions, and the longer connecting wire on the handle will affect the doctor's operation and also increase the difficulty of aseptic isolation.

[0086] To solve the above technical problems, as another embodiment, a wireless transmission module 23 is provided on the mirror body handle 22, and the imaging component 21 is wirelessly connected to the image processing host through the wireless transmission module 23.

[0087] In this embodiment, the wireless transmission module 23 is integrated on the mirror body handle 22, which increases the convenience of use for doctors and reduces the reliability of repeated partial disinfection or aseptic isolation.

[0088] Specifically, the wireless transmission module 23 includes a wireless transmission unit, the graphics processing host includes a wireless reception unit, and the wireless transmission unit is wirelessly connected to the wireless reception unit.

[0089] The imaging component 21 includes a camera 2102 and an insertion rod 2101, and the camera 2102 is connected to the mirror body handle 22 through the insertion rod 2101. The camera 2102 is electrically connected to the wireless transmission unit through a data cable, one end of the data cable is connected to the camera 2102, and the other end passes through the insertion rod 2101 and is connected to the wireless transmission unit.

[0090] In this embodiment, the insertion rod 2101 plays a role in supporting the data cable, and the purpose is to facilitate the feeding of the camera 2102 from the mirror body access port of the mirror sheath handle 12 to the distal end of the imaging channel 13.

[0091] If the insertion rod 2101 is a flexible tube or a combination of a flexible and a rigid tube, then the insertion rod 2101 also has flexibility, such as being made of nitinol alloy.

[0092] Furthermore, the wireless transmission module 23 further includes a power supply unit, and the power supply unit is connected to the wireless reflection unit, that is, the wireless reflection unit is powered by the power supply unit.

[0093] If the light source is located within the mirror body handle 22, the power supply unit is also connected to the light source, that is, the light source is powered by the power supply unit.

[0094] In this embodiment, the wireless transmission module 23 can be fixedly connected to the mirror body handle 22 or detachably connected to the mirror body handle 22.

[0095] Specifically, a wireless interface 2202 is provided on the mirror body handle 22. A first electrical connection part electrically connected to a data cable is provided inside the wireless interface 2202. A second electrical connection part and a mechanical interface 2301 are provided on the wireless transmission module 23. After the wireless transmission module 23 is installed in the wireless interface 2202, the first electrical connection part is electrically connected to the second electrical connection part, and the mechanical interface 2301 is mechanically connected to the wireless interface 2202.

[0096] The insertion rod 2101 has a bending part 21012 corresponding to the position of the bendable section 1102 of the insertion part 1111. A bending drive mechanism 2204 is provided on the mirror body handle 22 or the sheath handle 12. The bending drive mechanism 2204 is drivingly connected to the bending part 21012, and the bending part 21012 is bent by the drive of the bending drive mechanism 2204.

[0097] This embodiment does not limit the specific structure of the bending part 21012. For example, the bending part 21012 is a snake bone tube, and a plurality of linear transmission parts, such as steel wires or other linear transmission parts, are provided inside the snake bone tube. The bending control of the snake bone tube by the bending drive mechanism 2204 is mainly achieved by pulling the linear transmission parts. The number of linear transmission parts pulled in this embodiment is not limited. For example, on the premise of four linear transmission parts, pulling the four linear transmission parts respectively can make the bending part 21012 bend in four directions (up, down, left, and right). If two linear transmission parts are used, pulling the two linear transmission parts respectively can make the bending part 21012 bend in two directions.

[0098] The distal end of the linear transmission part is fixedly connected to the distal end of the snake bone tube, and the proximal end of the linear transmission part is connected to the bending drive mechanism 2204.

[0099] The bending drive mechanism 2204 can be provided on the mirror body handle 22 or on the sheath handle 12. To further increase the reusable parts and reduce the disposable parts, greatly reducing the disposal cost and medical waste, and thus reducing environmental pollution, it is preferred to provide the bending drive mechanism 2204 on the mirror body handle 22.

[0100] To facilitate the description of the structure of the insertion rod 2101, in this embodiment, the insertion rod 2101 includes an insertion rod main body 21011 and a bending part 21012. The proximal end of the insertion rod main body 21011 is fixedly connected to the mirror body handle 22, and the distal end of the insertion rod main body 21011 is fixedly connected to the camera 2102 through the bending part 21012.

[0101] In order to facilitate the insertion of instruments for tissue diagnosis and treatment, a working channel 111 is further provided in the insertion portion 11, and a working channel entrance 16 is provided on the sheath handle 12, and the working channel entrance 16 is communicated with the working channel 111. During operation, instruments are inserted from the working channel entrance 16 and pass through the working channel 111 into human tissue. Therefore, the working channel 111 runs through the head end 1103, that is, the head end 1103 is also provided with a working channel exit 11101.

[0102] For example, during ureteroscopic lithotripsy, the laser lithotripsy process will produce a large number of fine particles, and the field of vision in the renal pelvis may be unclear due to factors such as tissue bleeding. In order to solve this technical problem, as an embodiment, an additional water channel 110 is also provided in the insertion part 11, and an additional water inlet is provided on the sheath handle 12, and the additional water inlet is connected to the additional water channel 110. The additional water channel 110 runs through the head end 1103, that is, the head end 1103 is also provided with an additional water channel outlet 11001. During work, the doctor connects the injection device to the additional water inlet on the sheath handle 12, and injects liquids such as physiological saline into the renal pelvis through the additional water inlet through the injection device to ensure the cleaning of the field of vision, remove the gravel, and take away the heat generated by the high frequency. Continuous irrigation of a large amount of liquid can easily cause a significant increase in the pressure in the renal pelvis, causing a series of surgical complications, especially fever, severe kidney pain, ureteral postoperative stenosis and other diseases. Therefore, how to reduce the pressure in the renal pelvis has become a technical problem to be solved in this field.

[0103] In order to solve the above technical problems, in one embodiment of the present invention, a liquid return channel is further provided in the insertion portion 11, a negative pressure interface is provided on the sheath handle 12, and the liquid return channel is connected to the negative pressure interface. During operation, the doctor adds a negative pressure device to the negative pressure interface, and the liquid in the renal pelvis is sucked out from the liquid return channel through the negative pressure device in real time to reduce the pressure in the renal pelvis.

[0104] This embodiment does not limit the position of the liquid return port of the liquid return channel, for example, the liquid return port of the liquid return channel is opened on the distal end surface of the insertion part 11 or on the side wall of the insertion part 11 away from the distal end surface of the insertion part 11.

[0105] Since the insertion portion 11 has closely arranged optical fiber channels 14, camera channels 13, working channels 111 and attached water channels 110, if a liquid return port is added to the head end 1103 of the insertion portion 11, a large number of particles of different sizes after crushing will be attracted by negative pressure, causing the liquid return channel to be blocked, making liquid return difficult.

[0106] To solve this technical problem, the present invention preferably opens the liquid return port of the liquid return channel on the side wall far away from the distal end face of the insertion part 11. Therefore, the liquid return port avoids the gravel area, and further avoids gravel from entering the liquid return channel through the liquid return port under the action of negative pressure suction, preventing the liquid return channel from being blocked and realizing smooth liquid return.

[0107] Of course, the endoscope provided in this embodiment can not only be used as a ureteroscope, a pyeloscope, a cystoscope, but also can be used as a gastroscope, a colonoscope, a bronchoscope, a choledochoscope or a hysteroscope, etc. Therefore, the specific accessory water channel 110 and the liquid return channel can be set according to actual use requirements.

[0108] To reduce the diameter of the insertion part 11, as an embodiment, at least two of the working channel 111, the accessory water channel 110, and the return water channel can be combined into one channel.

[0109] To reduce the openings on the sheath handle 12, at least two of the working channel inlet 16, the accessory water inlet, and the negative pressure interface can be combined into one opening.

[0110] The present invention does not limit the specific structure of the insertion part 11. For example, if the insertion part 11 is a solid tubular structure, then the channels in the insertion part 11 are channels opened in the insertion part 11. If the insertion part 11 is a hollow tubular structure, then the channels in the insertion part 11 are formed by various pipelines.

[0111] In summary, in the endoscope provided by the present invention, by using a disposable passive sheath and a reusable mirror body, when relevant personnel use it, they will only come into contact with the disposable passive sheath, and are completely isolated from the repeatedly used mirror body, effectively avoiding the occurrence of situations such as bacterial contamination, reducing the risk of surgical infection, and being convenient to use, safe and reliable. Therefore, in the present invention, the sterilization and disinfection and other treatments of the mirror body can be avoided or reduced, and further the problems brought by the sterilization and disinfection and other treatments can be avoided or alleviated. In addition, since only the passive sheath is disposable, it is beneficial to reduce costs.

[0112] Moreover, the present invention repeats the use of the camera assembly and the data line for transmitting camera data. Therefore, the repeatedly used data line selects high-quality cables, ensuring the stability of data transmission and improving the anti-interference performance of the product, etc. Even when facing a high-definition camera with a large data transmission volume, it can meet the requirements of data transmission stability.

[0113] Moreover, the optical fiber is mainly made of glass (silicon dioxide) or plastic (PPMA, PS, etc.), which belongs to insulating materials and does not conduct electricity. Therefore, the present invention solves the electrical safety problem of the endoscope in complex surgical procedures such as inspection in liquids (bladder, uterine cavity, digestive organs, etc. with liquids) and the use of high-frequency energy instruments through a disposable passive non-electrified sheath. Even in the case of sheath seal failure, the electrical safety performance of the product can be guaranteed.

[0114] Furthermore, the present invention uses plastic optical fiber for illumination, which has low cost and higher optical performance. In the case of using high-brightness illumination, compared with LEDs, it will not generate a large amount of heat to cause a sharp increase in the temperature of the endoscope head end, reducing the harm to tissues or organs.

[0115] Further, by using a light source and cooperating with image processing through lights of different spectral bands, functions such as tumor screening and bleeding point detection can be performed.

[0116] Further, in the prior art, whether it is a disposable endoscope or a reusable endoscope, the endoscope handle is connected to the image processing host through a connecting wire. When the doctor operates the handle, there will be rotations in different directions, and the long connecting wire on the handle will affect the doctor's operation and increase the difficulty of aseptic isolation. The present invention is provided with a wireless transmission module on the endoscope body handle, and the imaging component is wirelessly connected to the image processing host through the wireless transmission module. By integrating the wireless transmission module on the endoscope body handle, the present invention increases the convenience of doctor use and reduces the reliability of repeated disinfection or aseptic isolation.

[0117] Further, in the prior art, whether it is a disposable endoscope or a reusable endoscope, the endoscope handle is connected to the image processing host through a connecting wire. When the doctor operates the handle, there will be rotations in different directions, and the long connecting wire on the handle will affect the doctor's operation and increase the difficulty of aseptic isolation. The present invention is provided with a wireless transmission module on the endoscope body handle, and the imaging component is wirelessly connected to the image processing host through the wireless transmission module. By integrating the wireless transmission module on the endoscope body handle, the present invention increases the convenience of doctor use and reduces the reliability of repeated disinfection or aseptic isolation.

[0118] Further, the present invention sets the bending drive mechanism on the endoscope body handle, further increasing the reusable components and reducing the disposable components, greatly reducing the disposal cost, reducing medical waste, and thus reducing environmental pollution.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope, characterized in that, Comprising a disposable passive mirror sheath and a reusable mirror body, the passive mirror sheath includes a mirror sheath handle, an insertion portion, and an optical fiber. The mirror sheath handle is disposed at the proximal end of the insertion portion, and a mirror body access port is provided on the mirror sheath handle; an optical fiber channel and a camera channel are provided inside the insertion portion, and the mirror body access port communicates with the camera channel; the optical fiber is disposed inside the optical fiber channel, and a first optical fiber connection portion is provided at the proximal end of the optical fiber, and the first optical fiber connection portion is disposed on the mirror sheath handle, and the first optical fiber connection portion is used to directly or indirectly connect to a light source, and the light source illuminates through the optical fiber. The mirror body includes a camera assembly and a mirror body handle, the camera assembly is connected to the distal end of the mirror body handle, the camera assembly extends into the camera channel through the mirror body access port, and the mirror body handle is detachably connected to the mirror sheath handle.

2. The endoscope according to claim 1, characterized in that, The light source is located outside the endoscope; the first optical fiber connection portion is provided on the mirror sheath handle, and the first optical fiber connection portion is used to directly connect to the light source.

3. The endoscope according to claim 1, characterized in that, The light source is provided inside the mirror body handle, and a second optical fiber connection portion is further provided on the mirror body handle, and the light source is connected to the second optical fiber connection portion; after the mirror body is inserted into the passive mirror sheath, the first optical fiber connection portion is connected to the second optical fiber connection portion.

4. The endoscope according to claim 3, characterized in that, One of the first optical fiber connection portion and the second optical fiber connection portion is an optical fiber connector, and the other is an optical fiber interface adapted to the optical fiber connector.

5. The endoscope according to claim 1, characterized in that, The insertion portion has a head end, the camera channel penetrates through the head end, and a camera optical window is provided on the head end, and the camera optical window seals the distal end of the camera channel.

6. The endoscope according to claim 5, characterized in that, A nozzle is further provided on the head end, and the nozzle faces the outer end face of the camera optical window. A water and gas pipe is further provided inside the insertion portion, and the distal end of the water and gas pipe is connected to the nozzle; the proximal end of the water and gas pipe is connected to a water source and a gas source through a water pipe and a gas pipe respectively.

7. The endoscope according to claim 1, characterized in that, The insertion portion has a bendable section, the bendable section is a bendable structure, or the bendable section is made of an elastic material. The insertion rod has a bending portion corresponding to the bendable section, and a bending driving mechanism is provided on the mirror body handle or the mirror sheath handle, the bending driving mechanism is drivingly connected to the bending portion, and the bending portion bends through the driving of the bending driving mechanism.

8. The endoscope according to claim 1, characterized in that, A first mechanical connection portion is provided on the mirror sheath handle, and a second mechanical connection portion corresponding to the first mechanical connection portion is provided on the mirror body handle, and the first mechanical connection portion is detachably connected to the second mechanical connection portion.

9. The endoscope according to claim 1, characterized in that, A wireless transmission module is provided on the mirror body handle, and the camera assembly is wirelessly connected to an image processing host through the wireless transmission module.

10. The endoscope according to claim 9, characterized in that, The wireless transmission module includes a wireless transmission unit, and the graphics processing host includes a wireless reception unit, and the wireless transmission unit is wirelessly connected to the wireless reception unit. The imaging assembly includes a camera and an insertion rod. The camera is connected to the mirror body handle through the insertion rod. The camera is electrically connected to the wireless transmission unit through a data cable. One end of the data cable is connected to the camera, and the other end passes through the insertion rod and is connected to the wireless transmission unit.

11. The endoscope according to claim 10, characterized in that, The wireless transmission module further includes a power supply unit. The power supply unit is connected to the wireless reflection unit. If the light source is located inside the mirror body handle, the power supply unit is also connected to the light source.

12. The endoscope according to claim 9, characterized in that, A wireless interface is provided on the mirror body handle. The wireless transmission module is fixedly or detachably connected to the wireless interface.

13. The endoscope according to claim 1, characterized in that, An endoscope plug is further provided on the mirror body handle. The imaging assembly is electrically connected to the endoscope plug, and the endoscope plug is used to connect to an image processing host.

Images