Endoscope assembly

Abstract

The invention belongs to the field of medical instruments, and particularly relates to an endoscope assembly which comprises an endoscope body, a lens and a water spraying pipe, a first channel and a second channel are formed in the endoscope body, and a bypass opening is formed in the side wall of the first channel; one end of the second channel is connected with the bypass opening, and the other end of the second channel forms a first water injection nozzle on the end face of the far end of the endoscope body; a water spraying pipe is arranged in the first channel in a penetrating mode and can move in the axial direction, and a second water spraying opening is formed in the side wall, close to the far end, of the water spraying pipe; the second water spraying opening moves along with the water spraying pipe, so that the second water spraying opening extends out of the far-end end face of the endoscope body to face the lens; and / or the second water injection nozzle retracts into the first channel so as to communicate with the bypass opening. According to the endoscope assembly, different water spraying modes can be switched only by moving the water spraying pipe, the requirement for cooling the surgical site and / or cleaning the lens can be met, and the definition of the surgical field is guaranteed.

Description

Technical Field

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

[0002] Currently, the mainstream treatment method for liver tumors is ablation treatment. That is, under the assistance of imaging such as ultrasound and CT, an ablation needle is inserted into the tumor site, and tumor cells are killed by the high temperature generated by heating to achieve the treatment purpose. However, one side of the liver is close to the digestive organs. When the tumor grows on the side close to the digestive tract, the high temperature during ablation will cause accidental injury to the digestive organs. In severe cases, surgical accidents such as gastric perforation will occur, bringing additional risks to the ablation surgery.

[0003] Therefore, the prior art usually uses an endoscope to enter the body from the abdominal cavity, assist in observing the ablation site of the liver from the abdominal cavity perspective, and prevent the heat generated during tumor ablation from being conducted to the digestive organs by spraying water on the surface of the liver close to the digestive organs.

[0004] Since the heat during the ablation process will bring water vapor, and the liquid ejected by the endoscope will cool the endoscope lens, resulting in the problem that the lens is prone to fogging, and the clarity of the surgical field cannot be guaranteed. Summary of the Invention

[0005] To solve the problem that the surgical field of view is affected by lens fogging, the present invention provides an endoscope assembly that can meet the needs of spraying water on the surgical site and / or cleaning the lens, ensuring the clarity of the surgical field of view.

[0006] An endoscope assembly according to an embodiment of the present invention includes:

[0007] An endoscope body, on which a first channel and a second channel are opened. The first channel penetrates from the proximal end to the distal end of the endoscope body, and a bypass opening is opened on the side wall of the first channel; one end of the second channel is connected to the bypass opening, and the other end of the second channel forms a first water spraying port on the distal end face of the endoscope body;

[0008] A lens, fixed to the distal end face of the endoscope body;

[0009] A water spraying pipe, movably disposed axially in the first channel. The distal end face of the water spraying pipe is sealed, and a second water spraying port is opened on the side wall of the water spraying pipe near the distal end;

[0010] The second water spraying port moves with the water spraying pipe, so that the second water spraying port extends out of the distal end face of the endoscope body to face the lens; and / or the second water spraying port retracts into the first channel to communicate with the bypass opening.

[0011] In some embodiments, the distance from the proximal end to the distal end of the second water spray opening is L1, and the distance from the distal end of the bypass opening to the distal end face of the endoscope body is L2, where L1 > L2.

[0012] In some embodiments, the distance from the proximal end to the distal end of the bypass opening is L3, where L1 > L3.

[0013] In some embodiments, the second channel includes a first straight channel and a second straight channel. The first straight channel extends from the first water spray opening into the interior of the endoscope body, and the second straight channel communicates from the bypass opening to the side wall of the first straight channel.

[0014] In some embodiments, the outer diameter of the water spray pipe is adapted to the inner diameter of the first channel.

[0015] In some embodiments, a sealing groove is formed on the proximal end of the endoscope body outside the first channel. A sealing sleeve is sleeved on the water spray pipe, and the sealing sleeve is fixed in the sealing groove.

[0016] In some embodiments, the endoscope body is further provided with a reserved channel, which penetrates from the proximal end to the distal end of the endoscope body.

[0017] With the endoscope assembly of the present invention, the second water spray opening can completely extend out of the distal end face of the endoscope body, so that the second water spray opening sprays water towards the lens; or the second water spray opening completely retracts into the first channel, and the second water spray opening communicates with the first water spray opening through the bypass opening and the second channel, so that the first water spray opening sprays water towards the surgical site; or a part of the second water spray opening extends out of the end face of the endoscope body, and the other part retracts into the first channel to communicate with the bypass opening, so as to spray water towards the lens and the surgical site at the same time. The structure of the endoscope assembly is simple and the operation is convenient. The endoscope assembly can switch different water spray modes only by moving the water spray pipe, which can meet the requirements of cooling the surgical site and / or cleaning the lens, and effectively ensure the clarity of the surgical field of view. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric structural schematic diagram of the endoscope assembly of this embodiment;

[0019] Figure 2 is a structural schematic diagram at the distal end face of the endoscope assembly of this embodiment;

[0020] Figure 3 is a sectional structural schematic diagram of the endoscope assembly of this embodiment;

[0021] Figure 4 is an axonometric structural schematic diagram of the water spray pipe of this embodiment;

[0022] Figure 5 Schematic diagram of the endoscopic component of this embodiment when only spraying water on the lens;

[0023] Figure 6 Schematic diagram of the endoscopic component of this embodiment when only spraying water on the surgical site;

[0024] Figure 7 Schematic diagram of the endoscopic component of this embodiment when spraying water on the lens and the surgical site simultaneously.

[0025] In the figure: endoscopic body 100; instrument channel 110; first channel 120; bypass opening 121; second channel 130; first straight channel 131; second straight channel 132; first water spraying port 133; reserved channel 140; lens 200; water spraying pipe 300; second water spraying port 310; sealing sleeve 400. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Any modification of the structure, change in the ratio relationship or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0028] The orientation or positional relationships indicated in this specification, such as "upper", "lower", "left", "right", "middle", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. "Proximal end" refers to the direction of the instrument towards the operator during use, and "distal end" refers to the direction of the instrument towards the patient during use. It is only for the convenience of simplifying the description and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Such as Figures 1-3As shown in the figure, this embodiment provides an endoscopic assembly, including an endoscopic body 100 and a lens 200. The endoscopic body 100 is cylindrical, and an instrument channel 110 is opened on the endoscopic body 100. The instrument channel 110 runs through from the proximal end to the distal end of the endoscopic body 100. The instrument channel 110 can provide an operating space for surgical instruments so that the surgical instruments can pass through the instrument channel 110 and act on the surgical site. The lens 200 is arranged on the distal end face of the endoscopic body 100, and the lens 200 can provide a surgical field of view to ensure the accuracy of surgical operations.

[0030] Especially in the ablation treatment of liver tumors, the surgical instrument is an ablation needle. Since the ablation needle has a relatively high temperature during operation, the endoscopic assembly needs to spray water on the surgical site to cool the human tissue; when spraying water to cool the surgical site, the liquid absorbs heat and evaporates into water vapor, and the water vapor easily causes the lens to fog up. Therefore, it is also necessary to spray water to clean the lens to ensure the clarity of the surgical field of view.

[0031] Specifically refer to Figure 3 , in the endoscopic assembly of this embodiment, a first channel 120 and a second channel 130 are opened on the endoscopic body 100. The first channel 120 runs through from the proximal end to the distal end of the endoscopic body 100, and a bypass opening 121 is opened on the side wall of the first channel 120. One end of the second channel 130 is connected to the bypass opening 121, and the other end forms a first water spray port 133 on the distal end face of the lens 200 body.

[0032] A water spray pipe 300 is inserted into the first channel 120 of this embodiment, and the water spray pipe 300 can move axially relative to the first channel 120. Specifically refer to Figure 4 , the end face of the proximal end of the water spray pipe 300 is open for liquid to enter the interior of the water spray pipe 300; the end face of the distal end of the water spray pipe 300 is sealed to prevent the liquid from spraying directly out of the distal end of the water spray pipe 300. A second water spray port 310 is opened on the side wall of the water spray pipe 300 near the distal end.

[0033] As Figures 5-7 shown, since the water spray pipe 300 can move in the first channel 120, the second water spray port 310 can follow the water spray pipe 300 and fully extend out of the distal end face of the endoscopic body 100, or a part of the second water spray port 310 extends out of the end face of the endoscopic body 100 and a part retracts into the first channel 120, or all retracts into the first channel 120.

[0034] When the second water spray port 310 partially or fully extends out of the endoscopic body 100, the extended part of the second water spray port 310 can face the lens 200. When the second water spray port 310 partially or fully retracts into the first channel 120, the retracted part of the second water spray port 310 can communicate with the first water spray port 133 through the bypass opening 121 and the second channel 130.

[0035] By controlling the movement of the water spray pipe 300 in the first channel 120, the endoscopic assembly can switch different water spray modes. The structure of the endoscopic assembly is simple and the operation is convenient, which can meet different surgical requirements.

[0036] For details, see Figure 5 , when only water spraying on the lens 200 is required during the operation, control the movement of the water spray pipe 300 in the first channel 120 to make the second water spray port 310 completely extend out of the distal end face of the endoscopic body 100. The liquid first flows from the proximal end of the water spray pipe 300 to the distal end, and then is sprayed onto the lens 200 through the second water spray port 310. The liquid can wash away the stains and fog attached to the lens 200 to ensure the clarity of the surgical field of view.

[0037] For details, see Figure 6 , when only water spraying on the surgical site is required during the operation, control the movement of the water spray pipe 300 in the first channel 120 to make the second water spray port 310 completely retract and the first channel 120 communicate with the bypass opening 121. The liquid first flows from the proximal end of the water spray pipe 300 to the distal end, then enters the second channel 130 through the second water spray port 310 and the bypass opening 121, and finally is sprayed onto the surgical site from the first water spray port 133 to play a cooling role.

[0038] For details, see Figure 7 , when water spraying on the lens 200 and the surgical site is required simultaneously during the operation, control the movement of the water spray pipe 300 in the first channel 120 to make a part of the second water spray port 310 extend out of the distal end face of the endoscopic body 100 and a part retract and the first channel 120 communicate with the bypass opening 121. The liquid flows to the distal end of the water spray pipe 300 and is split into two paths. One path of the liquid is sprayed onto the lens 200 through the second water spray port 310; the other path of the liquid first enters the second channel 130 through the second water spray port 310 and the bypass opening 121, and then is sprayed onto the surgical site from the first water spray port 133.

[0039] Preferably, the outer diameter of the water spray pipe 300 in this embodiment is adapted to the inner diameter of the first channel 120, so that it is not easy for liquid to leak between the water spray pipe 300 and the first channel 120. Especially when only water spraying on the surgical site is required, the second water spray port 310 is fully retracted into the first channel 120, and the distal end of the water spray pipe 300 can block the distal end of the first channel 120, improving the situation of liquid leaking to the distal end face of the lens 200 body.

[0040] For details, see Figure 3, the distance from the proximal end to the distal end of the second water spray opening 310 is L1, and the distance from the distal end of the bypass opening 121 to the distal end face of the endoscope body 100 is L2, where L1 > L2. When a part of the second water spray opening 310 extends out of the distal end face of the endoscope body 100, another part of the second water spray opening 310 can be combined with the bypass opening 121. The distance from the proximal end to the distal end of the bypass opening 121 is L3, where L1 > L3. When the second water spray opening 310 is completely retracted and combined with the bypass opening 121, the second water spray opening 310 can include the bypass opening 121 inside to ensure sufficient liquid supply in the second channel 130.

[0041] The second channel 130 of this embodiment preferably includes a first straight channel 131 and a second straight channel 132. The first straight channel 131 extends from the first water spray opening 133 to the inside of the endoscope body 100, and the second straight channel 132 communicates from the bypass opening 121 to the side wall of the first straight channel 131, so that the structure of the second channel 130 is simple and convenient for processing. It should be noted that in some embodiments, the path of the second channel 130 can be designed into other shapes according to requirements to meet the need of spraying water at the surgical site.

[0042] Specifically refer to Figures 5-7 , a sealing groove is opened on the proximal end of the endoscope body 100 of this embodiment outside the first channel 120, and a sealing sleeve 400 is sleeved on the water spray pipe 300 corresponding to the sealing groove. The sealing sleeve 400 is fixed in the sealing groove, and the sealing sleeve 400 can prevent liquid from leaking to the proximal end face of the endoscope body 100.

[0043] Specifically refer to Figure 2 , a reserved channel 140 is also opened on the endoscope body 100 of this embodiment. The reserved channel 140 penetrates from the proximal end to the distal end of the endoscope body 100, and lighting components, air supply components, suction components, etc. can be set in the reserved channel 140 according to requirements. It should be noted that the number of reserved channels 140 can be set according to actual needs, and this embodiment will not be elaborated.

[0044] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0045] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An endoscope assembly, characterized in that: include: An endoscope body (100) is provided with a first channel (120) and a second channel (130), wherein the first channel (120) runs from a proximal end of the endoscope body (100) to a distal end of the endoscope body (100), and a bypass opening (121) is provided on a side wall of the first channel (120); one end of the second channel (130) is connected to the bypass opening (121), and the other end of the second channel (130) forms a first water spraying port (133) on a distal end surface of the endoscope body (100); A lens (200) is fixed to the distal end surface of the endoscope body (100); A water spray pipe (300) is axially movable and penetrates the first channel (120), the distal end surface of the water spray pipe (300) is sealed, and a second water spray port (310) is provided on the side wall of the water spray pipe (300) near the distal end; The second water spray outlet (310) moves following the water spray pipe (300), so that the second water spray outlet (310) extends out of the distal end surface of the endoscope body (100) to face the lens (200); and / or the second water spray outlet (310) retracts into the first channel (120) to connect with the bypass opening (121).

2. The endoscope assembly according to claim 1, characterized in that: The distance from the proximal end of the second water spray port (310) to the distal end of the second water spray port (310) is L1, and the distance from the distal end of the bypass opening (121) to the distal end surface of the endoscope body (100) is L2, wherein L1>L2.

3. The endoscope assembly according to claim 2, characterized in that: The distance from the proximal end of the bypass opening (121) to the distal end of the bypass opening (121) is L3, wherein L1>L3.

4. The endoscope assembly according to any one of claims 1 to 3, characterized in that: The second channel (130) comprises a first straight channel (131) and a second straight channel (132), wherein the first straight channel (131) extends from the first water spray port (133) to the interior of the endoscope body (100), and the second straight channel (132) is connected from the bypass opening (121) to the side wall of the first straight channel (131).

5. The endoscope assembly according to any one of claims 1 to 3, characterized in that: The outer diameter of the water spray pipe (300) is adapted to the inner diameter of the first channel (120).

6. The endoscope assembly according to any one of claims 1 to 3, characterized in that: A sealing groove is provided at the proximal end of the endoscope body (100) on the outer side of the first channel (120), a sealing sleeve (400) is sleeved on the water spray pipe (300), and the sealing sleeve (400) is fixed in the sealing groove.

7. The endoscope assembly according to any one of claims 1 to 3, characterized in that: The endoscope body (100) is also provided with a reserved channel (140), and the reserved channel (140) runs from the proximal end to the distal end of the endoscope body (100).

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