Replaceable structure of endoscope, endoscope and endoscope system

Abstract

The invention provides a replaceable structure of an endoscope, the endoscope and an endoscope system, the endoscope system comprises an image processing device, a light source device, a display device and the endoscope, and the endoscope comprises an endoscope body and the replaceable structure; the endoscope body comprises a handle, an imaging assembly and a light source assembly. The imaging assembly and the light source assembly are installed on the handle. The replaceable structure comprises an insertion part and at least one group of pipeline components; the insertion part is detachably connected with the handle; the imaging assembly and the light source assembly are detachably arranged in the insertion part. The pipeline assembly is partially mounted in the insertion part; the pipeline assembly is detachably connected with the handle. The imaging assembly and the light source assembly are installed on the handle, the purpose of saving cost can be achieved, and due to the fact that the imaging assembly and the light source assembly can be repeatedly used, the high-configuration imaging assembly and the high-configuration light source assembly can be selected to improve the imaging effect. And meanwhile, the insertion part and the pipeline assembly which are possibly polluted are arranged to be of a replaceable structure, so that cross infection can be avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and more specifically, relates to a replaceable structure of an endoscope, an endoscope, and an endoscope system. Background Art

[0002] Doctors often use endoscopes in situations such as digestive tract diagnostic examinations, respiratory tract diagnostic examinations, and surgical treatments. An endoscope generally consists of three main parts: an insertion part, an operating part, and a connection part. The insertion part is provided with an imaging component and a light source component. When performing an examination or treatment through an endoscope, the insertion part needs to be inserted into the patient's body, and during the examination or treatment process, it is often necessary to aspirate tissue fluid in the patient's body to the outside of the body through the instrument channel of the endoscope. In this process, the inner and outer surfaces of the insertion part and internal pipelines such as the instrument channel are severely contaminated.

[0003] In order to avoid cross infection, the following two solutions are mainly used clinically: one is to use a reusable endoscope, which has good imaging effect, but the endoscope needs to be cleaned and disinfected after each use, which is not only time-consuming and labor-intensive and costly, but also cross infection accidents among patients occur from time to time; the other is to use a disposable endoscope, which can be discarded after each patient's use. This type of endoscope can avoid cross infection, but it is not only costly, but also due to cost control, low-end imaging components and light source components are selected, resulting in poor imaging effect and difficulty in meeting clinical needs. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a replaceable structure of an endoscope, an endoscope and an endoscope system to solve the technical problems existing in the prior art that repeated use of endoscopes is prone to cross infection and the cost of disposable endoscopes is high.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: in a first aspect, an endoscope is provided, the endoscope comprising an endoscope body and a replaceable structure;

[0006] The endoscope body comprises a handle, an imaging assembly and a light source assembly, wherein the imaging assembly and the light source assembly are respectively mounted on the handle;

[0007] The replaceable structure includes an insert and at least one set of pipeline components;

[0008] The inserting portion is detachably connected to the handle;

[0009] The imaging assembly and the light source assembly are respectively detachably arranged in the insertion portion;

[0010] The pipeline assembly is partially installed in the insertion part; the pipeline assembly is detachably connected to the handle.

[0011] In one embodiment, a first sleeve and a second sleeve are disposed in the insertion portion, and the first sleeve and the second sleeve are respectively used to guide the imaging assembly and the light source assembly to be inserted into the insertion portion.

[0012] In one embodiment, the head ends of the first sleeve and the second sleeve are respectively covered with a first lens and a second lens.

[0013] In one embodiment, the head end of the insertion portion is sealed and transparently arranged at positions corresponding to the imaging assembly and the light source assembly.

[0014] In one embodiment, the at least one set of pipeline assemblies includes a water-gas pipeline assembly and a suction pipeline assembly;

[0015] The water and gas pipeline assembly is used to deliver water and gas to the head end of the insertion portion;

[0016] The suction pipeline assembly is used to deliver tools to the head end of the insertion portion or to aspirate tissue fluid in a patient's body.

[0017] In one embodiment, a receiving groove is formed on the surface of the handle, and the receiving groove passes through one end of the handle facing the insertion portion, and the receiving groove is used to receive a portion of the pipeline assembly.

[0018] In one embodiment, the pipeline assembly includes a pipeline partially accommodated in the accommodating groove, a valve seat connected to the pipeline, and a valve body installed on the valve seat; a slot is formed on the handle, and the valve seat and the slot form a plug-in fit and a circumferential limit fit; the outer cover of the accommodating groove is provided with a cover plate, the cover plate is clamped with the handle, and the valve seat is limited between the cover plate and the handle.

[0019] In one embodiment, a groove is further formed on the handle, and the cover plate is received in the groove, and the cover plate can cover the receiving groove and the slot.

[0020] In one embodiment, the handle is provided with a bending control assembly, and the insertion part includes an outer tube, a bending section and a head end connected in sequence; the insertion part also includes a steel wire, one end of the steel wire is connected to the bending section, and the other end of the steel wire is detachably connected to the bending control assembly.

[0021] In one embodiment, the bending control assembly includes a control structure and a wire buckle connected to the control structure, and the wire buckle is connected to the wire clip.

[0022] In one embodiment, the endoscope further comprises a connecting sleeve, which is respectively sleeved on the end of the handle and the end of the insertion part; the connecting sleeve comprises two sleeve bodies, which are relatively buckled to achieve the connection between the handle and the insertion part.

[0023] In one embodiment, the endoscope body further includes a connection portion connected to the handle, the pipeline assembly extends to the connection portion, and is connected to an external drive at the connection portion; alternatively, the pipeline assembly passes through the handle to connect to an external drive.

[0024] The beneficial effect of the endoscope provided by the present application is that: the endoscope provided by the embodiment of the present application is divided into two parts: an endoscope body and a replaceable structure, wherein the endoscope body is reusable and the replaceable structure is disposable. On the one hand, high-cost parts such as imaging components and light source components are installed on the handle to achieve the purpose of cost saving, and because they are reusable, high-end imaging components and light source components can be selected to improve the imaging effect. On the other hand, the insertion part and pipeline component that may be contaminated are set as a replaceable structure, so as to avoid cross infection.

[0025] In a second aspect, the present application also provides a replaceable structure of an endoscope, comprising an insertion portion and at least one set of pipeline components;

[0026] The insertion portion is used to be detachably connected to the handle of the endoscope;

[0027] The insertion portion is also used to set the imaging component and light source component of the endoscope;

[0028] The pipeline assembly is partially installed in the insertion part; the pipeline assembly is used for detachable connection with the handle.

[0029] In one embodiment, a first sleeve and a second sleeve are disposed in the insertion portion, and the first sleeve and the second sleeve are respectively used to guide the imaging assembly and the light source assembly to be inserted into the insertion portion.

[0030] In one embodiment, the head ends of the first sleeve and the second sleeve are respectively covered with a first lens and a second lens.

[0031] In one embodiment, the head end of the insertion portion is sealed and transparently arranged at positions corresponding to the imaging assembly and the light source assembly.

[0032] In one embodiment, the at least one set of pipeline assemblies includes a water-gas pipeline assembly and a suction pipeline assembly;

[0033] The water and gas pipeline assembly is used to deliver water and gas to the head end of the insertion portion;

[0034] The suction pipeline assembly is used to deliver tools to the head end of the insertion portion or to aspirate tissue fluid in a patient's body.

[0035] In one embodiment, the pipeline assembly includes a pipeline, a valve seat connected to the pipeline, a valve body installed on the valve seat, and a cover plate; the valve seat is configured to form a plug-in fit and a circumferential limit fit with a slot on the handle; the cover plate is configured to be snap-fitted with the handle; the valve seat is limited between the cover plate and the handle.

[0036] In one embodiment, the insertion portion includes an outer tube, a bending section and a head end connected in sequence; the insertion portion also includes a steel wire, one end of which is connected to the bending section, and the other end of the steel wire is used for detachable connection with the bending control component of the endoscope.

[0037] In one embodiment, the replaceable structure of the endoscope also includes a connecting sleeve, which is respectively sleeved on the end of the handle and the end of the insertion part; the connecting sleeve includes two sleeve bodies, and the two sleeve bodies are relatively buckled to achieve the connection between the handle and the insertion part.

[0038] The replaceable structure of the endoscope provided by the present application has the following beneficial effects: the replaceable structure of the endoscope provided by the embodiment of the present application includes an insert and a pipeline assembly, the insert is used to set the imaging assembly and the light source assembly, and the pipeline assembly is used to be detachably connected to the handle. In this way, high-cost parts such as the imaging assembly and the light source assembly in the endoscope are installed in the non-replaceable part, which can achieve the purpose of cost saving, and because they can be reused, high-end imaging assemblies and light source assemblies can be selected to improve the imaging effect. At the same time, the insert and pipeline assembly that may be contaminated are set as replaceable structures, so as to avoid cross infection.

[0039] In a third aspect, the present application also provides an endoscope system, including an image processing device, a light source device, a display device, and the above-mentioned endoscope or a replaceable structure of the above-mentioned endoscope.

[0040] The beneficial effect of the endoscope system provided by the present application is that the endoscope system provided by the embodiment of the present application, through the setting of the above-mentioned endoscope, makes the endoscope system low in cost and can avoid cross infection, and does not need to be frequently cleaned and disinfected. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 A schematic diagram of the three-dimensional structure of an endoscope provided in an embodiment of the present application;

[0043] Figure 2 This is an exploded schematic diagram of an insertion portion and a handle of an endoscope provided in an embodiment of the present application;

[0044] Figure 3 A partial cross-sectional schematic diagram of the connection between the handle and the pipeline assembly in the endoscope provided in an embodiment of the present application;

[0045] Figure 4 A schematic diagram of the structure of an endoscope body in an endoscope provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the handle structure of the endoscope body in the endoscope provided in an embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of a replaceable structure in an endoscope provided in an embodiment of the present application;

[0048] Figure 7 A schematic radial cross-sectional view of an endoscope provided in an embodiment of the present application at an insertion portion;

[0049] Figure 8 A schematic axial cross-sectional view of an endoscope provided in an embodiment of the present application at an insertion portion;

[0050] Fig. 9 A schematic radial cross-sectional view of the endoscope provided in an embodiment of the present application at the head end;

[0051] Fig.10 A schematic diagram of the assembly of a water and gas pipeline assembly and an insertion portion in an endoscope provided in an embodiment of the present application;

[0052] Fig.11 A schematic diagram of the assembly of the suction pipeline assembly and the insertion portion of the endoscope provided in an embodiment of the present application;

[0053] Fig.12 A schematic diagram of the structure of a connecting sleeve in an endoscope provided in an embodiment of the present application.

[0054] Among them, the reference numerals in the figure are:

[0055] 1. Endoscope body; 11. Handle; 111. Accommodating groove; 112. Slot; 1121. First limiting plane; 1122. Second step; 113. Groove; 114. Lead-out window; 115. Second annular groove; 116. Sixth limiting plane; 12. Imaging assembly; 13. Light source assembly; 14. Bending control assembly; 141. Steel wire buckle; 15. Connecting part; 2. Replaceable structure; 21. Inserting part; 211. Outer tube; 2111. First annular groove; 2112. Fifth limiting plane; 212. Bending section; 213. Head end; 2131. Connecting port; 2132. Nozzle; 214. First sleeve; 215. Second sleeve; 216. First lens; 217. Second lens; 218. Steel wire; 22. Pipeline assembly; 22 1. Pipeline; 222. Valve seat; 2221. Second limiting plane; 2222. First step; 223. Valve body; 224. Cover plate; 22a. Water-gas pipeline assembly; 221a. First water pipe; 222a. Second water pipe; 223a. First air pipe; 224a. Second air pipe; 225a. Water-gas valve seat; 226a. Water-gas valve body; 22b. Suction pipeline assembly; 221b. First suction pipe; 222b. Second suction pipe; 223b. Clamp channel pipe; 223b. Suction valve seat; 225b. Suction valve body; 226b. Clamp channel valve seat; 227b. Clamp channel valve body; 23. Connecting sleeve; 231. Sleeve body; 2311. First convex rib; 2312. Second convex rib; 2313. Third limiting plane; 2314. Fourth limiting plane. DETAILED DESCRIPTION

[0056] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0057] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0058] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] Doctors often use endoscopes in occasions such as digestive tract diagnosis and examination, respiratory tract diagnosis and examination, and surgical treatment. Endoscopes are generally composed of three main parts: an insertion part, an operating part, and a connection part. Among them, an imaging component and a light source component are arranged in the insertion part. When performing examination or treatment through an endoscope, the insertion part needs to be inserted into the patient's body, and during the examination or treatment process, it is often necessary to aspirate tissue fluid in the patient's body to the outside of the body through the instrument channel of the endoscope. In this process, the inner and outer surfaces of the insertion part and the internal pipelines such as the instrument channel are seriously contaminated. In order to avoid cross infection, the following two solutions are currently mainly used clinically: one is to use a reusable endoscope, which has a good imaging effect, but the endoscope needs to be cleaned and disinfected after each use, which is not only time-consuming and labor-intensive, but also costly, and cross-infection accidents among patients occur from time to time; the other is to use a disposable endoscope, which can be discarded after each patient's use. This type of endoscope can avoid cross infection, but it is not only costly, but also due to cost control, low-end imaging components and light source components are selected, resulting in poor imaging effect, which is difficult to meet clinical needs.

[0061] In order to solve the above problems, the embodiment of the present application provides an endoscope, which can achieve the purpose of cost saving by installing high-cost parts such as imaging components 12 and light source components 13 on the handle 11, and because they are reusable, high-end imaging components 12 and light source components 13 can be selected to improve the imaging effect. At the same time, the insertion part 21 and the pipeline component 22 that may be contaminated are set as replaceable structures 2, so as to avoid cross infection.

[0062] See also Figures 1 to 6 , the endoscope provided by the embodiment of the present application is now described in detail. The endoscope includes an endoscope body 1 and a replaceable structure 2; the endoscope body 1 includes a handle 11, an imaging component 12 and a light source component 13, and the imaging component 12 and the light source component 13 are respectively installed on the handle 11; the replaceable structure 2 includes an insertion portion 21 and at least one group of pipeline components 22; the insertion portion 21 is detachably connected to the handle 11; the imaging component 12 and the light source component 13 are respectively detachably arranged in the insertion portion 21; the pipeline component 22 is partially installed in the insertion portion 21; the pipeline component 22 is detachably connected to the handle 11.

[0063] The endoscope body 1 is a reusable part of the endoscope. The replaceable structure 2 is a replaceable part (also called a consumable part) of the endoscope, which can be separated from the endoscope body 1 and discarded.

[0064] During assembly, the imaging assembly 12 and the light source assembly 13 of the endoscope body 1 are detachably disposed in the insertion portion 21 , respectively, and the pipeline assembly 22 is detachably connected to the handle 11 .

[0065] When in use, the imaging component 12, the light source component 13 and the pipeline component 22 are inserted into the patient's body together with the insertion part 21. Among them, the imaging component 12 is used to obtain images of the lesion site of the human body, and the light source component 13 is used for lighting, so that the imaging component 12 can obtain images. The pipeline component 22 has one or more of the following functions, such as being used to deliver water and gas to the head end 213 of the insertion part 21 to achieve cleaning of the light source component 13 and the imaging component 12, or to achieve cleaning and gas injection of the human digestive tract, to deliver tools to the head end 213 of the insertion part 21 to achieve surgery, and to aspirate tissue fluid in the patient's body.

[0066] After use, the insertion portion 21 and the pipeline assembly 22 can be removed from the handle 11 and discarded.

[0067] The endoscope system in the embodiment of the present application is divided into two parts: an endoscope body 1 and a replaceable structure 2, wherein the endoscope body 1 is reusable and the replaceable structure 2 is disposable. On the one hand, high-cost parts such as the imaging component 12 and the light source component 13 are installed on the handle 11, which can achieve the purpose of cost saving, and because they are reusable, high-end imaging components 12 and light source components 13 can be selected to improve the imaging effect. On the other hand, the insertion part 21 and the pipeline component 22 that may be contaminated are set as the replaceable structure 2, so as to avoid cross infection.

[0068] Through the embodiments of the present application, it is possible to realize the consumableization of some of the easily contaminated and low-cost structures in the endoscope, while the high-cost and high-precision structures can be used as reusable structures that cooperate with the consumables. On the basis of avoiding cross infection, the cost increase caused by the consumableization of some structures can be greatly reduced, and at the same time, the problem that the consumableization of some structures may lead to a decrease in the imaging effect inside the ground can be avoided to a great extent.

[0069] In one embodiment, see Figure 7 and Figure 8 A first sleeve 214 and a second sleeve 215 are provided in the insertion portion 21 , and the first sleeve 214 and the second sleeve 215 are used to guide the imaging component 12 and the light source component 13 to be inserted into the insertion portion 21 , respectively.

[0070] During assembly, the imaging component 12 and the light source component 13 are respectively inserted into the first sleeve 214 and the second sleeve 215 , so as to arrange the imaging component 12 and the light source component 13 in the insertion portion 21 .

[0071] In this embodiment, the first sleeve 214 and the second sleeve 215 are provided to guide and constrain the imaging assembly 12 and the light source assembly 13 to be inserted into the insertion portion 21 along the axial direction of the insertion portion 21 and ensure that they are plugged into the bottom. At the same time, the imaging assembly 12 and the light source assembly 13 can be limited in the circumferential direction to ensure the assembly stability of the imaging assembly 12 and the light source assembly 13. On the other hand, the imaging assembly 12 and the light source assembly 13 are separately provided by the first sleeve 214 and the second sleeve 215. Compared with the prior art that constrains the imaging assembly 12 and the light source assembly 13 with a preset spacing in a larger sleeve, the lateral occupied space of the imaging assembly 12 and the light source assembly 13 can be greatly saved, that is, the provision of the first sleeve 214 and the second sleeve 215 will not increase the diameter of the insertion portion 21 too much. It can be understood that in other embodiments of the present application, the insertion of the imaging assembly 12 and the light source assembly 13 can also be guided and constrained by a sleeve, which is not the only limitation here.

[0072] In one embodiment, the head end of the insertion portion 21 is sealed and transparently arranged corresponding to the position of the imaging component 12 and the light source component 13. This not only does not affect the imaging effect of the imaging component 12 and the lighting effect of the light source component 13, but also can seal the imaging component 12 and the light source component 13 to prevent the imaging component 12 and the light source component 13 from being contaminated in the human body, thereby making the imaging component 12 and the light source component 13 reusable.

[0073] In one embodiment, see Figure 8 and Fig. 9 , the head ends 213 of the first sleeve 214 and the second sleeve 215 are respectively covered with a first lens 216 and a second lens 217. Among them, the arrangement of the first lens 216 and the second lens 217 can respectively seal the first sleeve 214 and the second sleeve 215, so that the imaging component 12 and the light source component 13 are sealed in the insertion part 21, and the imaging component 12 and the light source component 13 are prevented from being contaminated in the human body. In addition, the first lens 216 and the second lens 217 are both transparent parts, so they will not affect the imaging effect of the imaging component 12 and the lighting effect of the light source component 13. It can be understood that in other embodiments of the present application, when a sleeve is provided in the insertion part 21, it is only necessary to set a lens at the head end 213 of the sleeve to seal the sleeve.

[0074] In another embodiment of the present application, the first sleeve 214 and the second sleeve 215 for limiting the imaging assembly 12 and the light source assembly 13 may not be provided in the insertion portion 21, but the pipeline assembly 22 in the insertion portion 21 may be constrained, and then a transparent seal may be provided at the head end 213 of the imaging assembly 12 and the light source assembly 13 in the insertion portion 21, which can also ensure that the imaging assembly 12 and the light source assembly 13 are sealed in the insertion portion 21. On this basis, as another optional embodiment of the present application, a limiting structure for the imaging assembly 12 and the light source assembly 13 may be provided in the insertion portion 21 to limit the two and avoid the imaging assembly 12 and the light source assembly 13 from being unstable during the use of the endoscope.

[0075] In one embodiment, see Figures 6 to 9 The insertion part 21 includes an outer tube 211, a curved section 212 and a head end 213 connected in sequence. The first sleeve 214, the second sleeve 215 and the pipeline assembly 22 are respectively arranged through the outer tube 211 and the curved section 212, and along the lateral direction of the insertion part 21, the first sleeve 214, the second sleeve 215, the outer tube 211 and the pipeline assembly 22 are arranged at intervals from each other, and the first sleeve 214, the second sleeve 215 and the pipeline assembly 22 are connected to the insertion part 21 at the head end 213. The first lens 216 and the second lens 217 are both installed on the end surface of the head end 213 and are arranged corresponding to the first sleeve 214 and the second sleeve 215.

[0076] Among them, the head end 213 is the front end of the entire endoscope inserted into the human body. The head end 213 is used to guide the insertion into the human body, and the head end 213 is also used to support and fix the first sleeve 214, the second sleeve 215 and the pipeline assembly 22, to ensure the relative position between the first sleeve 214, the second sleeve 215 and the pipeline assembly 22, so as to ensure the lighting effect, imaging accuracy, and surgical accuracy. The curved section 212 is connected between the outer tube 211 and the head end 213. The curved section 212 can be bent under the drive of the handle 11 to guide the insertion part 21 into the complex curved human body passage. The outer tube 211 is used to realize the connection between the curved section 212 and the handle 11. The outer tube 211 is also used to realize the shielding protection of the first sleeve 214, the second sleeve 215 and the pipeline assembly 22, and the outer tube 211 is flexible and elastically deformable. The outer tube 211 can follow the curved section 212 to pass smoothly in the human body passage.

[0077] In one embodiment, see Fig.10 and Fig.11, at least one group of pipeline components 22 includes a water-gas pipeline component 22a and a suction pipeline component 22b; the water-gas pipeline component 22a is used to deliver water and gas to the head end 213 of the insertion part 21; the suction pipeline component 22b is used to deliver tools to the head end 213 of the insertion part 21 or to suck tissue fluid from the patient's body. In this embodiment, by setting the water-gas pipeline component 22a and the suction pipeline component 22b as replaceable structures, both can be disassembled and discarded after use to avoid cross infection. In addition, the pipeline 221 of water and gas is combined, and the delivery tool and the pipeline 221 for sucking tissue fluid are combined, so that the pipeline 221 structure of the entire endoscope can be simplified, the space occupied by the pipeline structure can be reduced, and it is also convenient to quickly disassemble and assemble the replaceable structure 2 with the endoscope body 1. It can be understood that in other embodiments of the present application, when the structural design permits, the water and gas pipeline assembly 22a can also be set as a reusable structure; in addition, when the endoscope is developed with other functions, its corresponding pipeline 221 can also be set as a replaceable structure 2, which is not the only limitation here.

[0078] In one embodiment, see Figure 2 and Figure 5 The surface of the handle 11 is formed with a receiving groove 111, which penetrates one end of the handle 11 facing the insertion portion 21, and is used to accommodate part of the pipeline assembly 22. By forming the receiving groove 111 on the surface of the handle 11 and penetrating the one end of the handle 11 facing the insertion portion 21, the part of the pipeline assembly 22 corresponding to the handle 11 can be loaded into the receiving groove 111 between the outer sides of the handle 11, thereby reducing the difficulty of installing the pipeline assembly 22 on the handle 11.

[0079] In one embodiment, see Figure 2 , Figure 3 , Figure 5 and Figure 6 The pipeline assembly 22 includes a pipeline 221 partially accommodated in the accommodating groove 111, a valve seat 222 connected to the pipeline 221, and a valve body 223 installed on the valve seat 222; a slot 112 is formed on the handle 11, and the valve seat 222 forms a plug-in fit and a circumferential limit fit with the slot 112; the outer cover of the accommodating groove 111 is provided with a cover plate 224, the cover plate 224 is clamped with the handle 11, and the valve seat 222 is limited between the cover plate 224 and the handle 11.

[0080] The pipeline 221 is used to deliver gas, liquid or tools, and the valve seat 222 and the valve body 223 cooperate to realize the on-off of the pipeline 221. The slot 112 is provided to realize the circumferential limit of the valve seat 222 on the handle 11, and the cover plate 224 and the handle 11 jointly realize the limit of the valve seat 222 along its axial direction.

[0081] During assembly, first install the pipeline 221 into the receiving groove 111 from one side of the handle 11; then, axially insert the valve seat 222 into the slot 112, sleeve the cover plate 224 on the valve seat 222, and snap-fit ​​the cover plate 224 and the handle 11, so that the valve seat 222 can be detachably mounted on the handle 11; finally, install the valve body 223 on the valve seat 222. Since the valve body 223 and the valve seat 222 are used together to realize the pipeline 221 passing through the valve structure, the valve body 223 and the valve seat 222 only need to be plugged into and matched with each other.

[0082] In this embodiment, the detachable connection of the pipeline assembly 22 on the handle 11 is realized by the handle 11, the cover plate 224 and the slot 112 on the handle 11, which only needs to be operated on the outer side of the handle 11, which is convenient for disassembly and assembly, and easy to replace the pipeline assembly 22. In addition, the setting of the cover plate 224 can also cover the pipeline 221 in the receiving groove 111, so that the surface of the handle 11 is neat and beautiful. It can be understood that in other embodiments of the present application, the cover plate 224 may not be provided, and the valve seat 222 may be assembled on the handle 11 in a threaded locking manner, which is not limited here.

[0083] In one embodiment, see Figure 3 and Figure 5 The slot 112 is connected to the accommodating slot 111, a first limiting plane 1121 is formed on the inner wall of the slot 112, and a second limiting plane 2221 is formed on the outer wall of the valve seat 222. When the valve seat 222 is inserted into the slot 112, the first limiting plane 1121 abuts against the second limiting plane 2221, thereby realizing axial limitation of the valve seat 222.

[0084] Also, see Figure 3 and Figure 5 A first step 2222 is formed on the surface of the valve seat 222, and a second step 1122 is formed in the slot 112. When the valve seat 222 is inserted into the slot 112, the first step 2222 abuts against the second step 1122. In addition, the cover plate 224 is covered on the upper end surface of the valve seat 222, thereby limiting the valve seat 222 on the handle 11 along its axial direction.

[0085] In one embodiment, see Figure 2 and Figure 5 The handle 11 is also formed with a groove 113, in which the cover plate 224 is received, and the cover plate 224 can cover the receiving groove 111 and the slot 112. The arrangement of the groove 113 can, on the one hand, accommodate and limit the cover plate 224, thereby ensuring the reliability of the installation of the cover plate 224 on the handle 11, and on the other hand, can also ensure that the outer surface of the cover plate 224 is flush with the outer surface of the handle 11, thereby making the entire handle 11 beautiful in appearance.

[0086] In one embodiment, a plurality of spaced hooks are formed on the side of the cover plate 224 facing the handle 11, and a plurality of slots are formed on the handle 11, and each hook is engaged with each slot in a one-to-one correspondence to realize a detachable connection of the cover plate 224 on the handle 11. In addition, in order to ensure the assembly accuracy and assembly convenience of the cover plate 224 on the handle 11, a positioning column and a positioning hole can be provided between the cover plate 224 and the handle 11 to realize plug-in matching guidance.

[0087] In one embodiment, see Fig.10 The water-gas pipeline assembly 22a includes a first water pipe 221a, a second water pipe 222a, a first air pipe 223a, and a second air pipe 224a. For the convenience of description, the valve seat 222 and the valve body 223 corresponding to the water-gas pipeline assembly 22a are respectively referred to as a water-gas valve seat 225a and a water-gas valve body 226a. The first water pipe 221a and the second water pipe 222a are arranged on opposite sides of the water-gas valve seat 225a. The first water pipe 221a is used to communicate with the water pump. The second water pipe 222a is inserted in the outer pipe 211 and the curved section 212 and connected to the head end 213. The first air pipe 223a and the second air pipe 224a are arranged on opposite sides of the water-gas valve seat 225a. The first air pipe 223a is used to communicate with the air pump. The second air pipe 224a is inserted in the outer pipe 211 and the curved section 212 and connected to the head end 213. The water and gas valve body 226a is movably arranged on the water and gas valve seat 225a. When the water and gas valve body 226a is in the first position, the first water pipe 221a is connected with the second water pipe 222a, so that water can be output through the head end of the insertion part 21 to clean the first lens 216 and the second lens 217; when the water and gas valve body 226a is in the second position, the first air pipe 223a is connected with the second air pipe 224a, so that air flow can be output through the head end 213 of the insertion part 21 to blow away the tissue fluid on the first lens 216 and the second lens 217.

[0088] During assembly, one end of the second water pipe 222a and the second air pipe 224a are installed on the head end of the insertion part 21, and the parts of the second water pipe 222a and the second air pipe 224a corresponding to the handle 11 are both inserted into the receiving groove 111. The installation of the first water pipe 221a and the first air pipe 223a will be described in detail later.

[0089] In one embodiment, see Fig. 9 , the head end 213 is provided with a nozzle 2132, and the nozzle 2132 is respectively connected to the second water pipe 222a and the second air pipe 224a. In this embodiment, the nozzle 2132 converges the second water pipe 222a and the second air pipe 224a, so that only one nozzle 2132 is required to achieve the output of water and air. It can be understood that in other embodiments of the present application, when the head end position is sufficient, the nozzle 2132 can also be respectively provided corresponding to the second water pipe 222a and the second air pipe 224a, which is not the only limitation here.

[0090] In one embodiment, see Fig.11 The suction pipeline assembly 22b includes a first suction tube 221b, a second suction tube 222b, a clamp channel tube 223b and a clamp channel valve seat 226b. In addition, for the sake of convenience in distinction, the valve seat 222 and the valve body 223 in the suction pipeline assembly 22b are respectively referred to as the suction valve seat 224b, the suction valve body 225b, the clamp channel valve body 227b and the clamp channel valve seat 226b. One end of the clamp channel tube 223b is connected to the head end 213 of the insertion part 21, the clamp channel valve seat 226b is a three-way valve and has a first interface, a second interface and a third interface, the other end of the clamp channel tube 223b is connected to the first interface, the suction valve body 225b is installed on the clamp channel valve seat 226b and is connected to the second interface, one end of the first suction tube 221b is connected to the third interface, the other end of the first suction tube 221b is connected to the suction valve seat 224b, the first suction tube 221b and the second suction tube 222b are respectively arranged on opposite sides of the suction valve seat 224b, the end of the second suction tube 222b away from the suction valve seat 224b is used to connect the suction pump, and the suction valve body 225b is installed on the suction valve seat 224b.

[0091] When it is necessary to aspirate the tissue fluid in the patient's body to the outside of the body, the clamp channel valve seat 226b connects the clamp channel tube 223b with the first suction tube 221b, and the suction valve body 225b moves on the suction valve seat 224b to connect the first suction tube 221b with the second suction tube 222b, so that the tissue fluid in the patient's body can be aspirated to the outside of the body through the first suction tube 221b, the second suction tube 222b and the clamp channel tube 223b in sequence through the suction pump.

[0092] When tools are needed for surgical operations, the suction valve body 225b is moved on the suction valve seat 224b to disconnect the connection between the first suction tube 221b and the second suction tube 222b, and the clamp channel valve body 223 is connected to the clamp channel tube through the clamp channel valve seat 226b, and the connection between the clamp channel tube and the first suction tube 221b is disconnected, so that tools can be delivered from the position of the clamp channel valve body 223 to the clamp channel tube 223b to perform the operation.

[0093] In one embodiment, see Fig. 9 The head end 213 is provided with a connection port 2131, and the connection port 2131 is communicated with the clamp channel tube 223b, so as to realize the suction of tissue fluid and the delivery of tools.

[0094] In one embodiment, see Figure 2 and Figure 6The handle 11 is provided with a bending control component 14, and the insertion part 21 includes an outer tube 211, a bending section 212 and a head end 213 connected in sequence; the insertion part 21 also includes a steel wire 218, one end of the steel wire 218 is connected to the bending section 212, and the other end of the steel wire 218 is detachably connected to the bending control component 14.

[0095] The bending control assembly 14 is assembled on the handle 11 when it leaves the factory, and the steel wire 218 is assembled on the insertion portion 21 when it leaves the factory. When in use, the steel wire 218 is detachably connected to the bending control assembly 14, and the bending section 212 can be controlled at the handle 11.

[0096] When the bending degree of the bending section 212 needs to be adjusted, the bending control assembly 14 can be operated on the handle 11. By pulling or loosening the steel wire 218 through the bending control assembly 14, the bending section 212 can be driven to bend to different degrees.

[0097] In this embodiment, the bending control assembly 14 has a complex structure and a high cost. By setting the bending control assembly 14 as a reusable part, the cost can be reduced. In addition, by detachably connecting the bending control assembly 14 to the end of the steel wire 218 away from the insertion part 21, the insertion part 21 and the bending control assembly 14 are prevented from being separated, and the bending control assembly 14 can be reused.

[0098] In one embodiment, see Figure 2 The bending control assembly 14 includes a control structure and a steel wire buckle 141 connected to the control structure, and the steel wire buckle 141 is buckled with the steel wire 218. The control structure is mounted on the handle 11, and the steel wire buckle 141 is mounted on the control structure. The steel wire buckle 141 is used to realize a detachable connection between the steel wire 218 and the control assembly. In addition, the buckle connection structure is simple, easy to process, and easy to assemble.

[0099] In one embodiment, see Figure 6 and Fig.12 The endoscope further includes a connecting sleeve 23, which is respectively sleeved on the end of the handle 11 and the end of the insertion part 21; the connecting sleeve 23 includes two sleeve bodies 231, which are relatively buckled to achieve the connection between the handle 11 and the insertion part 21. In this embodiment, the connection between the handle 11 and the insertion part 21 is achieved through the connecting sleeve 23, thereby improving the connection reliability between the handle 11 and the insertion part 21; at the same time, by dividing the connecting sleeve 23 into two relatively buckled sleeve bodies 231, it is convenient to achieve the detachable connection between the handle 11 and the insertion part 21, and there is no need to set the imaging assembly 12, the light source assembly 13 and the pipeline assembly 22 through the connecting sleeve 23, thereby improving the overall assembly efficiency of the endoscope.

[0100] In one embodiment, see Figure 2 and Fig.11 A first annular groove 2111 is formed on the outer peripheral wall of the end of the insertion portion 21, a second annular groove 115 is formed on the outer peripheral wall of the end of the handle 11, and two first convex ribs 2311 and second convex ribs 2312 are formed on the inner wall of the sleeve body 231, which are arranged at intervals along the axial direction. During assembly, the first convex rib 2311 forms a concave-convex fit with the first annular groove 2111, and the second convex rib 2312 forms a concave-convex fit with the second annular groove 115, thereby realizing the axial limitation of the handle 11 and the connecting sleeve 23, and also realizing the axial limitation of the insertion portion 21 and the connecting sleeve 23.

[0101] Also, see Figure 2 and Fig.12 A third limiting plane 2313 is formed on the inner wall of the sleeve 231 between the first convex rib 2311 and the second convex rib 2312, and a fourth limiting plane 2314 is formed on the inner wall of the sleeve 231 between the first convex rib 2311 and the second convex rib 2312, and a fifth limiting plane 2112 is formed on the outer peripheral wall of the insertion portion 21, and a sixth limiting plane 116 is formed on the outer peripheral wall of the handle 11. During assembly, the third limiting plane 2313 and the fifth limiting plane 2112 are fitted together to form a circumferential limit between the sleeve 231 and the insertion portion 21, and the fourth limiting plane 2314 and the sixth limiting plane 116 are fitted together to form a circumferential limit between the sleeve 231 and the handle 11.

[0102] In one embodiment, see Figure 1 and Figure 6, the pipeline assembly 22 passes through the handle 11 to connect with the external drive. Specifically, a lead-out window 114 connected to the slot 112 is formed on the side wall of the handle 11, and the first air pipe 223a, the first water pipe 221a and the second suction pipe 222b are directly led out from the lead-out window 114 of the handle 11 respectively, and then a water pump and a suction pump are respectively arranged outside the handle 11, the water pump is connected to the first water pipe 221a, and the suction pump is connected to the second suction pipe 222b. In addition, an additional air pump is required to be arranged and connected to the first air pipe 223a. It should be noted here that the air pump is already built-in inside the connecting portion 15. If the first air pipe 223a is introduced into the connecting portion 15, the first air pipe 223a can be directly connected to the air pump in the connecting portion 15. However, if the first air pipe 223a is directly led out at the handle 11, an additional air pump needs to be arranged, which increases the cost of the air pump. Of course, since the first air pipe 223a, the first water pipe 221a and the second suction pipe 222b do not need to pass through the connection part 15, it is not necessary to form the receiving groove 111 and the cover plate 224 corresponding to the first air pipe 223a, the first water pipe 221a and the second suction pipe 222b on the connection part 15, so that the structure of the connection part 15 can be simplified. In addition, since the first air pipe 223a, the first water pipe 221a and the second suction pipe 222b do not pass through the connection part 15, there is no risk of contamination of the connection part 15, and there is no need to disinfect and clean the connection part 15. Therefore, there is no need to set the corresponding channels for disinfection and cleaning on the connection part 15, which also saves the man-hour cost of disinfecting and cleaning the handle 11.

[0103] It can be understood that in other embodiments of the present application, the endoscope body 1 may also include a connection portion 15 connected to the handle 11, and the pipeline assembly 22 extends to the connection portion 15 and is connected to an external drive at the connection portion 15. Specifically, the first air pipe 223a can be directly connected to the air pump built into the connection portion 15. In addition, a water pump and a suction pump need to be provided outside the connection portion 15, the water pump is connected to the first water pipe 221a, and the suction pump is connected to the second suction pipe 222b. In order to facilitate the installation of the first water pipe 221a, the first air pipe 223a and the second suction pipe 222b on the connection portion 15, it is necessary to provide a receiving groove 111 and a corresponding cover plate 224 on the connection portion 15. At the same time, in order to facilitate the cleaning and disinfection of the connection portion 15, it is necessary to provide a corresponding channel for disinfection and cleaning on the connection portion 15.

[0104] On the other hand, the present application also provides a replaceable structure 2 of an endoscope, including an insertion portion 21 and at least one set of pipe components 22; the insertion portion 21 is used for detachable connection with the handle 11; the insertion portion 21 is also used to set the imaging component 12 and the light source component 13 of the endoscope; the pipe component 22 is partially installed in the insertion portion 21; the pipe component 22 is used for detachable connection with the handle 11.

[0105] In addition, the present application also provides an endoscope system, including an image processing device, a light source device, a display device and an endoscope. The light source device is used to provide a light source for the light source component 13 in the endoscope to ensure that the endoscope can obtain images of the lesion site of the human body, the image processing device is connected to the imaging component 12 in the endoscope, the image processing device is used to receive the image information transmitted by the imaging component 12 and process the image information, and the display device is connected to the image processing device, and the display device is used to display the processed image for the doctor to observe and assist the operation.

[0106] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An endoscope, characterized in that: The endoscope comprises an endoscope body (1) and a replaceable structure (2); The endoscope body (1) comprises a handle (11), an imaging component (12) and a light source component (13), wherein the imaging component (12) and the light source component (13) are respectively mounted on the handle (11); The replaceable structure (2) comprises an inserting portion (21) and at least one set of pipeline components (22); The insertion portion (21) is detachably connected to the handle (11); The imaging component (12) and the light source component (13) are respectively detachably arranged in the insertion portion (21); The pipeline assembly (22) is partially installed in the insertion portion (21); the pipeline assembly (22) is detachably connected to the handle (11).

2. The endoscope according to claim 1, wherein: A first sleeve (214) and a second sleeve (215) are provided in the insertion portion (21), and the first sleeve (214) and the second sleeve (215) are respectively used to guide the imaging component (12) and the light source component (13) to be inserted into the insertion portion (21).

3. The endoscope according to claim 2, characterized in that The head ends of the first sleeve (214) and the second sleeve (215) are respectively covered with a first lens (216) and a second lens (217).

4. The endoscope according to claim 1, wherein: The head end of the insertion portion (21) is sealed and transparently arranged at positions corresponding to the imaging component (12) and the light source component (13).

5. The endoscope according to claim 1, wherein: The at least one set of pipeline components (22) comprises a water-gas pipeline component (22a) and a suction pipeline component (22b); The water and gas pipeline assembly (22a) is used to transport water and gas to the head end of the insertion part (21); The suction pipeline assembly (22b) is used to deliver tools to the head end of the insertion portion (21) or to aspirate tissue fluid in a patient's body.

6. The endoscope according to any one of claims 1 to 5, characterized in that: A receiving groove (111) is formed on the surface of the handle (11), the receiving groove (111) passes through one end of the handle (11) facing the insertion portion (21), and the receiving groove (111) is used to receive part of the pipeline assembly (22).

7. The endoscope according to claim 6, characterized in that The pipeline assembly (22) comprises a pipeline (221) partially accommodated in the accommodating groove (111), a valve seat (222) connected to the pipeline (221), and a valve body (223) mounted on the valve seat (222); a slot (112) is formed on the handle (11), and the valve seat (222) forms a plug-in fit and a circumferential limit fit with the slot (112); the outer cover of the accommodating groove (111) is provided with a cover plate (224), and the cover plate (224) is snap-connected with the handle (11); the valve seat (222) is limited between the cover plate (224) and the handle (11).

8. The endoscope according to claim 7, characterized in that The handle (11) is also formed with a groove (113), the cover plate (224) is received in the groove (113), and the cover plate (224) can cover the receiving groove (111) and the insertion slot (112).

9. The endoscope according to any one of claims 1 to 5, characterized in that: The handle (11) is provided with a bending control component (14), and the insertion portion (21) comprises an outer tube (211), a bending section (212) and a head end (213) which are connected in sequence; the insertion portion (21) also comprises a steel wire (218), one end of the steel wire (218) is connected to the bending section (212), and the other end of the steel wire (218) is detachably connected to the bending control component (14).

10. The endoscope according to claim 9, characterized in that The bending control component (14) comprises a steel wire buckle (141), and the steel wire buckle (141) is buckledly connected to the steel wire (218).

11. The endoscope according to any one of claims 1 to 5, characterized in that: The endoscope further comprises a connecting sleeve (23), wherein the connecting sleeve (23) is respectively sleeved on the end of the handle (11) and the end of the insertion portion (21); the connecting sleeve (23) comprises two sleeve bodies (231), and the two sleeve bodies (231) are relatively buckled to realize the connection between the handle (11) and the insertion portion (21).

12. The endoscope according to any one of claims 1 to 5, characterized in that: The endoscope body (1) further comprises a connection portion (15) connected to the handle (11), the pipeline assembly (22) extending to the connection portion (15) and connected to an external drive at the connection portion (15); alternatively, the pipeline assembly (22) passes through the handle (11) to be connected to an external drive.

13. A replaceable structure of an endoscope, characterized in that: It comprises an insertion portion (21) and at least one set of pipeline components (22); The insertion portion (21) is used to be detachably connected to the handle (11) of the endoscope; The insertion portion is also used to set the imaging component (12) and the light source component (13) of the endoscope; The pipeline assembly (22) is partially installed in the insertion portion (21); the pipeline assembly (22) is used to be detachably connected to the handle (11).

14. The replaceable structure of an endoscope according to claim 13, characterized in that: A first sleeve (214) and a second sleeve (215) are provided in the insertion portion (21), and the first sleeve (214) and the second sleeve (215) are respectively used to guide the imaging component (12) and the light source component (13) to be inserted into the insertion portion (21).

15. The replaceable structure of an endoscope according to claim 14, characterized in that: The head ends of the first sleeve (214) and the second sleeve (215) are respectively covered with a first lens (216) and a second lens (217).

16. The replaceable structure of an endoscope according to claim 13, characterized in that: The head end of the insertion portion (21) is sealed and transparently arranged at positions corresponding to the imaging component (12) and the light source component (13).

17. The replaceable structure of an endoscope according to claim 13, characterized in that: The at least one set of pipeline components (22) comprises a water-gas pipeline component (22a) and a suction pipeline component (22b); The water and gas pipeline assembly (22a) is used to transport water and gas to the head end of the insertion part (21); The suction pipeline assembly (22b) is used to deliver tools to the head end of the insertion portion (21) or to aspirate tissue fluid in a patient's body.

18. The replaceable structure of an endoscope according to claim 13, characterized in that: The pipeline assembly (22) comprises a pipeline (221), a valve seat (222) connected to the pipeline (221), a valve body (223) mounted on the valve seat (222), and a cover plate (234); the valve seat (222) is configured to form a plug-in fit and a circumferential limit fit with a slot (112) on the handle (11); the cover plate (224) is configured to be snap-fitted with the handle (11); and the valve seat (222) is limited between the cover plate (224) and the handle (11).

19. The replaceable structure of an endoscope according to claim 13, characterized in that: The insertion portion (21) comprises an outer tube (211), a bending section (212) and a head end (213) which are connected in sequence; the insertion portion (21) further comprises a steel wire (218), one end of which is connected to the bending section (212), and the other end of which is used for detachable connection with the bending control component (14) of the endoscope.

20. An endoscope system, characterized in that: The invention comprises an image processing device, a light source device, a display device and an endoscope as claimed in any one of claims 1 to 12 or an interchangeable structure of the endoscope as claimed in any one of claims 13 to 19.

Images