Sampling device and endoscope

Abstract

The present invention provides a sampling device and an endoscope, which relate to the field of medical instruments. The present invention comprises a fixing part, which is used to be connected to an endoscope; a connecting part, which is connected to the fixing part and extends from the fixing part to the side away from the fixing part; and a sampling part, which is movably arranged on the connecting part so that the sampling part can approach / move away from the fixing part along a first direction, and the sampling part is used to be connected to a sampling bottle; wherein a connecting tube is arranged between the sampling part and the fixing part and / or the endoscope, and the connecting tube is a hose, and the length of the connecting tube is not less than the maximum distance that the sampling part moves along the first direction. Compared with the prior art, the present invention enables an operator to more accurately control the orientation and distance of the endoscope, thereby achieving the best operating posture and gesture in different operating environments, which not only helps to improve the success rate of the operation, but also reduces the operation time and improves medical efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a sampling device and an endoscope. Background Art

[0002] An endoscope is a device that integrates an image sensor, an optical lens, an illumination source, and a precision mechanical structure. It can enter the human body through the mouth, trachea, or other natural orifices to observe internal tissues, perform biopsies, or perform minimally invasive surgeries. Existing endoscopes allow doctors to visually and in real time view the interior of the human body, improving the convenience of diagnosis and treatment.

[0003] In some surgeries requiring sampling and testing, an endoscope is often used in conjunction with a sampling device. For pathological effusions in the bronchi, abdominal cavity, pelvic cavity, and other areas, a sampling device is used to extract samples of sputum, gastric juice, urine, and other substances before and after treatment for analysis, allowing for the selection of an appropriate treatment plan based on the severity of the condition.

[0004] Current sampling devices are typically mounted directly on the handle of an endoscope, requiring the operator to manipulate the endoscope and sampling device according to specific circumstances. However, different operators and treatment needs lead to different usage habits or gestures, and existing designs cannot fully meet these diverse usage needs. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a sampling device and an endoscope.

[0006] In a first aspect, the present application provides a sampling device, which adopts the following technical solution:

[0007] A sampling device comprising:

[0008] A fixing portion, used for connecting to an endoscope;

[0009] a connecting portion connected to the fixing portion, and extending from a side of the fixing portion toward a side away from the fixing portion; and

[0010] a sampling portion movably disposed on the connecting portion so that the sampling portion can approach or move away from the fixing portion along a first direction, the sampling portion being used to connect with a sampling bottle;

[0011] A connecting tube is provided between the sampling portion and the fixing portion and / or the endoscope. The connecting tube is a flexible tube, and the length of the connecting tube is not less than the maximum distance that the sampling portion moves along the first direction.

[0012] Preferably, the connecting pipe is provided with a reinforcement structure, and the reinforcement structure is used to increase the rigidity of the pipe wall of the connecting pipe.

[0013] Preferably, the reinforcement structure comprises: a spiral support structure provided outside the connecting pipe;

[0014] and / or, a spiral support structure provided in the connecting pipe;

[0015] and / or, a bellows structure provided on the connecting pipe;

[0016] and / or, a reinforcement protrusion provided on the connecting pipe along the length direction of the connecting pipe;

[0017] and / or, a reinforcement tube disposed outside the connecting tube;

[0018] and / or, a reinforcing tube disposed within the connecting tube.

[0019] Preferably, the connecting pipe is twisted, and when the two ends of the connecting pipe are close to each other, the connecting pipe is in a spiral shape;

[0020] And / or, a first connector is provided at one end of the connecting tube and a second connector is provided at the other end, the first connector is connected to the sampling part, and the second connector is connected to the fixing part and / or the endoscope; the central axis of the first connector and the central axis of the second connector are not in the same plane or intersect with each other.

[0021] Preferably, a damping structure is provided between the sampling portion and the connecting portion, so that the sampling portion can stay at any position of the connecting portion in the first direction.

[0022] Preferably, the damping structure comprises an elastic rubber provided on the sampling portion, and at least a portion of the elastic rubber abuts against the connecting portion;

[0023] The connecting portion is provided with a groove, the groove extends along a first direction, and at least a portion of the elastic rubber is embedded in the groove.

[0024] Preferably, the connecting portion and the fixing portion are rotatably matched so that the sampling portion can be moved from one side of the endoscope to the other side.

[0025] Preferably, a limiting structure is provided between the connecting portion and the fixing portion to limit the rotation angle of the connecting portion relative to the fixing portion;

[0026] The limiting structure includes a protrusion arranged on the connecting part, the protrusion protrudes from the connecting part, the protrusion is located close to the sampling part, and the fixing part is provided with a limiting groove that cooperates with the protrusion. When the connecting part rotates relative to the fixing part, the protrusion slides in the limiting groove.

[0027] In a second aspect, the present application provides an endoscope, which adopts the following technical solution:

[0028] An endoscope comprises a handle, wherein the handle is connected to a sampling device described in the above technical solution.

[0029] Preferably, the handle is provided with an elbow, and the sampling device is connected to the elbow.

[0030] The present invention has the following advantages and beneficial effects:

[0031] The sampling portion is movably arranged at the connecting portion, thereby allowing the sampling portion to move closer to or further away from the fixed portion along the first direction. This not only further increases the versatility of the equipment, but also allows the operator to adjust the position of the sampling portion according to actual needs, so that the endoscope can be used more conveniently in different surgical environments and treatment needs. This greatly improves the adaptability of the endoscope, enabling it to meet the usage habits and treatment needs of different operators, reduces the difficulty of operation, and improves the flexibility and convenience of surgery.

[0032] In addition, the purpose of installing the sampling part on the endoscope is achieved by connecting the fixing part and the endoscope; since the position of the fixing part relative to the endoscope is fixed, and the connecting part is rotatable relative to the fixing part, the orientation of the sampling part relative to the endoscope can be changed during the rotation of the connecting part, thereby more flexibly adapting to the hand habits of different users and improving the versatility of use of the endoscope.

[0033] This combined design of a movable sampling section and a rotating connection allows operators to more precisely control the position and distance of the endoscope, achieving optimal posture and gestures in different operating environments. This not only helps improve surgical success rates, but also reduces surgical time and enhances medical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 It is a structural diagram of an embodiment of the present application.

[0036] Figure 2 This is the main view of an embodiment of the present application.

[0037] Figure 3 It is a schematic diagram of the explosion structure of an embodiment of the present application.

[0038] Figure 4 This is a first cross-sectional view of an embodiment of the present application.

[0039] Figure 5 This is a second cross-sectional view of the embodiment of the present application.

[0040] Figure 6 This is a first schematic diagram of the connecting pipe of an embodiment of the present application.

[0041] Figure 7 This is a second schematic diagram of the connecting pipe of an embodiment of the present application.

[0042] Figure 8 It is a schematic diagram of the first partial structure of the endoscope.

[0043] Figure 9 It is a schematic diagram of the second partial structure of the endoscope.

[0044] Figure 10 It is a schematic diagram of the third partial structure of the endoscope.

[0045] Figure 11 It is a schematic diagram of the structure of an endoscope.

[0046] The following are marked in the figure:

[0047] 10. Endoscope; 11. Handle; 12. Elbow; 12a. First section; 12b. Second section; 100. Fixing part; 120. Limiting groove; 130. Insertion groove; 140. Sealing rubber; 200. Connecting part; 210. Groove; 220. Protrusion; 300. Sampling part; 400. Connecting tube; 410. First joint; 420. Second joint; 500. Damping structure; 510. Elastic rubber; 600. Sampling bottle. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0049] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0050] The following combination Figures 1 to 11 , a sampling device and an endoscope provided in an embodiment of the present application are described in detail through specific embodiments and their application scenarios.

[0051] The first aspect of this embodiment provides a detailed description of a sampling device.

[0052] Reference Figure 1 、 Figure 2 The embodiment of the present application provides a sampling device, comprising a fixing portion 100, a connecting portion 200, and a sampling portion 300. The fixing portion 100 is used to connect to the endoscope 10, specifically, to the handle 11 of the endoscope 10, so as to achieve the purpose of installing the sampling device on the endoscope 10. In some embodiments, the fixing portion 100 is a part of the endoscope 10, that is, the fixing portion 100 is integrally provided with the endoscope 10. In other embodiments, the fixing portion 100 is detachably mounted on the endoscope 10. For example, the fixing portion 100 is provided with a socket, and the endoscope 10 is provided with a receptacle that cooperates with the socket. Through the cooperation between the receptacle and the socket, the fixing portion 100 and the endoscope 10 are detachably mounted.

[0053] The connecting portion 200 is connected to the fixing portion 100, and the connecting portion 200 extends from the fixing portion 100 side to the side away from the fixing portion 100. The sampling portion 300 is movably arranged on the connecting portion 200 so that the sampling portion 300 can approach / move away from the fixing portion 100 along a first direction. The sampling portion 300 is used to connect with the sampling bottle 600. Since the connecting portion 200 extends from the fixing portion 100 side to the side away from the fixing portion 100, the sampling portion 300 can be moved relative to the fixing portion 100 on the connecting portion 200. The distance between the sampling portion 300 and the fixing portion 100 can be adjusted by moving the sampling portion 300 away from or towards the fixing portion 100. During use, the fixing portion 100 is connected to the endoscope 10, and the sampling portion 300 is connected to the sampling bottle 600. Therefore, the distance between the sampling bottle 600 and the endoscope 10 can be adjusted by moving the sampling portion 300. This improves the adaptability of the endoscope 10, enabling it to meet the usage habits and treatment needs of different operators, reducing the difficulty of operation, and improving the flexibility and convenience of surgery. It can be understood that the first direction is the direction of approaching or moving away from the fixing portion 100. Specifically, the first direction is the extension direction of the connecting portion 200.

[0054] Reference Figure 2 、 Figure 3A connecting tube 400 is provided between the sampling portion 300 and the fixing portion 100 and / or the endoscope 10. The connecting tube 400 is a flexible tube, and the length of the connecting tube 400 is not less than the maximum distance that the sampling portion 300 can move along the first direction. The connecting tube 400 connects the sampling portion 300 with the sampling tube in the endoscope 10, allowing the sample in the sampling tube in the endoscope 10 to enter the sampling bottle 600 and be retained. By configuring the connecting tube 400 as a flexible tube, the function of the connecting tube 400 can be maintained during the process of adjusting the distance between the sampling portion 300 and the fixing portion 100, thereby ensuring a stable and reliable connection between the connecting tube 400, the sampling portion 300, and the endoscope 10. When the sampling portion 300 is moved toward the fixing portion 100 / endoscope 10, the two ends of the connecting tube 400 will move closer together, gradually bending the connecting tube 400. When the sampling portion 300 is moved away from the fixing portion 100 / endoscope 10, the two ends of the connecting tube 400 will gradually move away from the fixing portion 100 / endoscope 10, gradually straightening the connecting tube 400. It will be understood that the length of the connecting tube 400 is not less than the maximum distance that the sampling portion 300 can move in the first direction. This means that the length of the connecting tube 400 is always sufficient during the movement of the sampling portion 300 relative to the fixing portion 100, and the sampling portion 300 will not be unable to move away from the fixing portion 100 / endoscope 10 due to insufficient length of the connecting tube 400.

[0055] According to an optional embodiment, the connecting tube 400 is provided with a reinforcement structure, which is used to increase the rigidity of the tube wall of the connecting tube 400. It is understood that when the connecting tube 400 is bent, if the bending angle of the connecting tube 400 is too large, the connecting tube 400 may collapse (bend) inwardly. In this case, the connecting tube 400 will be bent. Unlike bending, when the connecting tube 400 is bent, the internal passage of the connecting tube 400 will be partially or completely blocked, thereby hindering the passage of substances in the sampling tube of the endoscope 10 into the sampling bottle 600 through the connecting tube 400. Therefore, it is necessary to strengthen the tube wall of the connecting tube 400 to prevent the connecting tube 400 from collapsing (bending) when bending. When strengthening the connecting tube 400, it is necessary to prevent the connecting tube 400 from collapsing while maintaining its flexibility.

[0056] According to an alternative embodiment, referring to Figure 7As shown, the reinforcement structure includes a spiral support structure arranged outside the connecting tube 400. The specific spiral support structure is a structure extending spirally along the length direction of the connecting tube 400, such as a coil spring. The coil spring is sleeved outside the connecting tube 400, and the outer circumference of the connecting tube 400 is clamped by the coil spring, so that during the bending process of the connecting tube 400, the connecting tube 400 will not collapse (bend) under the clamping action of the circumferential coil spring. It can be understood that the spiral support structure can be integrally provided on the connecting tube 400, or it can be separately provided from the connecting tube 400. When the spiral support structure is separately provided from the connecting tube 400, the spiral support structure is connected to the connecting tube 400 in a detachable manner or a fixed manner; when the spiral support structure is integrally provided with the connecting tube 400, the spiral support structure protrudes from the inner wall and / or outer wall of the connecting tube 400, or the spiral support structure is embedded in the side wall of the connecting tube 400, for example, a spiral metal wire can be embedded in the side wall of the connecting tube 400.

[0057] In some embodiments, the reinforcing structure is a coil spring disposed on the outside of the connecting tube 400, with one end of the coil spring connected to the sampling portion 300 and the other end connected to the fixing portion 100 or the endoscope 10. This allows the coil spring to twist at both ends when the relative position of the sampling portion 300 and the fixing portion 100 changes (for example, when the connecting portion 200 rotates relative to the fixing portion 100). This reduces the inner diameter of the coil spring, thereby providing a better grip on the connecting tube 400 and preventing the connecting tube 400 from collapsing during use. By adjusting the rotation direction of the coil spring, the coil spring can grip the connecting tube 400 tightly when the connecting portion 200 rotates relative to the fixing portion 100, thereby preventing the connecting tube 400 from deforming. It is understood that two coil springs with opposite rotational directions can be mounted on the connecting tube 400. This allows one coil spring to hold the connecting tube 400 securely when the connecting portion 200 rotates relative to the fixed portion 100. However, when the connecting portion 200 rotates relative to the fixed portion 100 in a direction opposite to the first clockwise direction, the other coil spring holds the connecting tube 400 securely. This ensures that the coil springs effectively hold the connecting portion 200 securely regardless of its rotational direction. Furthermore, the greater the rotation angle of the connecting portion 200 and the greater the torsional deformation of the connecting tube 400, the greater the holding force exerted by the coil springs on the connecting tube 400, making the connecting tube 400 less susceptible to collapse (bending). It is understood that the aforementioned first clockwise direction is primarily used to distinguish between forward and reverse rotation of the connecting portion 200. The first clockwise direction can be any direction in which the connecting portion 200 rotates relative to the fixed portion 100. For example, if the connecting portion 200 can rotate relative to the fixed portion 100 in multiple directions, the first clockwise direction can represent any one of these directions.

[0058] According to an optional embodiment, the reinforcement structure includes a spiral support structure (not shown in the figure) arranged in the connecting tube 400; the specific spiral support structure is a structure extending in a spiral direction along the length direction of the connecting tube 400, such as a coil spring, and the coil spring is sleeved in the connecting tube 400. The coil spring supports the connecting tube 400, so that during the bending process of the connecting tube 400, it will not collapse (bend) due to the support of the coil spring.

[0059] In some embodiments, the shape of the connecting tube 400 is preferably spiral. When the spiral connecting tube 400 is bent, due to its continuous spiral shape, the stress and strain will be more evenly distributed on the entire wall of the connecting tube 400. Compared with a straight pipe, the spiral connecting tube 400 has no obvious concentrated stress points, which reduces the risk of excessive local stress, thereby reducing the possibility of the connecting tube 400 bending or collapsing. In addition, the spiral connecting tube 400 has greater elasticity and flexibility, which can better absorb and disperse external forces. When the connecting tube 400 is subjected to a bending force, the spiral structure can absorb part of the energy through its own elastic deformation, reducing the direct pressure on the wall of the connecting tube 400. The curvature of the spiral connecting tube 400 is distributed over the entire length, thereby avoiding excessive radial pressure at a certain point. Unlike the bending of a straight pipe, the shape of the spiral connecting tube 400 naturally disperses the pressure and reduces the risk of bending or collapsing.

[0060] According to an optional embodiment, the reinforcement structure includes a bellows structure (not shown in the figure) provided on the connecting pipe 400; it can be understood that the reinforcement structure includes a bellows structure provided on the connecting pipe 400, which means that a partial area of ​​the connecting pipe 400 is a bellows structure, or the entire connecting pipe 400 is a bellows structure, or a bellows is provided on the outer wall of the connecting pipe 400, or a bellows is provided inside the connecting pipe 400, and the bellows can be expanded and contracted in the length direction, and at the same time, when the bellows structure is bent, the bellows structure has a certain circumferential supporting force, so that the bellows structure itself is not prone to collapse (bending), and at the same time, the bellows has a folded annular structure, and these annular structures can hold or support the connecting pipe 400. When the bellows structure is located inside the connecting tube 400, these annular structures support the connecting tube 400. When the bellows structure is located on the outer wall of the connecting tube 400, these annular structures hold the connecting tube 400 tightly. Regardless of whether the annular structure holds or supports the connecting tube 400, it can prevent the connecting tube 400 from collapsing when bent.

[0061] According to an optional embodiment, the reinforcement structure includes a reinforcement protrusion (not shown) provided along the length of the connecting tube 400. It will be appreciated that the reinforcement protrusion is made of a flexible material. The reinforcement protrusion increases the wall thickness of the portion of the connecting tube 400 where the reinforcement protrusion is provided, thereby increasing the rigidity of the wall. This prevents the portion of the connecting tube 400 from collapsing when the connecting tube 400 is bent. Specifically, the reinforcement protrusion may be a spiral protrusion extending helically along the length of the connecting tube 400, or an annular protrusion extending circumferentially along the connecting tube 400, with a plurality of annular protrusions spaced apart along the length of the connecting tube 400 to provide radial support for the connecting tube 400. Alternatively, the reinforcement protrusion may be located on the inner wall of the connecting tube 400, on the outer wall of the connecting tube 400, or on both the inner and outer walls of the connecting tube 400. In some embodiments, the reinforcing protrusions may be distributed in areas of the connecting pipe 400 that are prone to collapse. The areas of the connecting pipe 400 that are prone to collapse are areas where the connecting pipe 400 has a greater degree of curvature, and may be arranged according to actual usage.

[0062] According to an optional embodiment, the reinforcement structure includes a reinforcement tube (not shown in the figure) arranged outside the connecting tube 400. It can be understood that the reinforcement tube can be a tubular structure with the same material as the connecting tube 400, or it can be a pipe structure made of other flexible materials. By sleeved with the reinforcement tube, the connecting tube 400 can be circumferentially clamped, making the connecting tube 400 less likely to collapse.

[0063] According to an optional embodiment, the reinforcement structure includes a reinforcement tube (not shown in the figure) arranged in the connecting tube 400. The reinforcement tube supports the interior of the connecting tube 400, so that the connecting tube 400 is not prone to collapse when bending. It can be understood that the length of the reinforcement tube can be consistent with that of the connecting tube 400, and the reinforcement tube can also be set in the part with a larger bending amplitude.

[0064] According to an alternative embodiment, referring to Figure 6As shown, the connecting tube 400 is twisted, and when the two ends of the connecting tube 400 are close to each other, the connecting tube 400 is in a spiral shape. It can be understood that the connecting tube 400 has a first end and a second end, the first end is connected to the sampling part 300, and the second end is connected to the fixing part 100 or the endoscope 10. When the first end or the second end of the connecting tube 400 is fixed, the first end and the second end of the connecting tube 400 can be rotated in opposite directions by a certain angle, so that the connecting tube 400 has a certain torsional deformation in its circumferential direction, so that the connecting tube 400 is twisted. In this way, after the first end and the second end of the connecting tube 400 are fixed, there will be a certain torsional stress on the connecting tube 400. When the two ends of the connecting tube 400 are close to each other, under the action of the torsional stress on the connecting tube 400, the connecting tube 400 will bend and bend into a spiral shape (such as Figure 6 As shown), this can effectively prevent the connecting tube 400 from bending, so that when the two ends of the connecting tube 400 are close to each other, the connecting tube 400 is not likely to collapse. Figure 9 This is a state diagram when the sampling part 300 moves close to the fixing part 100. Figure 10 This is a diagram showing a state when the sampling portion 300 moves away from the fixing portion 100 .

[0065] When connecting tube 400 is twisted and its ends brought closer together, it assumes a spiral shape. This is due to the combined effects of stress distribution and physical and mechanical properties within connecting tube 400. First, twisting connecting tube 400 generates torsional stress within it. When the two ends are brought closer together, this stress is released through deformation. A spiral shape is the lowest energy and most stable form, so connecting tube 400 naturally adopts this shape. Second, the flexible material of connecting tube 400 causes the twisted portion to bend and form a spiral due to the force transmitted from both ends.

[0066] According to an alternative embodiment, referring to Figure 2 、 Figure 3The connecting tube 400 is provided with a first connector 410 at its first end and a second connector 420 at its second end. The first connector 410 is connected to the sampling portion 300, and the second connector 420 is connected to the fixing portion 100 and / or the endoscope 10. The central axis of the first connector 410 and the central axis of the second connector 420 are not aligned or intersect with each other. During use, the sampling portion 300 moves toward the fixing portion 100 and / or the endoscope 10, causing the first connector 410 and the second connector 420 to approach each other. If the docking direction of the first connector 410 and the docking direction of the second connector 420 coincide, the first connector 410 and the second connector 420 will contact each other, causing the connecting tube 400 connected between the first connector 410 and the second connector 420 to bend, resulting in collapse of the connecting tube 400, affecting its normal use. By adjusting the orientation of the first connector 410 and the second connector 420, the first connector 410 and the second connector 420 can be staggered when the sampling portion 300 moves toward the fixing portion 100 and / or the endoscope 10. Even when the sampling portion 300 is closest to the fixing portion 100 and / or the endoscope 10, a certain distance can be maintained between the first connector 410 and the second connector 420. This can reduce the curvature of the connecting tube 400 connected between the first connector 410 and the second connector 420, making the connecting tube 400 less likely to bend and thus less likely to collapse during use. It should be understood that the first connector 410 and the second connector 420 are both components extending along the length of the connecting tube 400, and the first connector 410 and the second connector 420 have a central axis in the direction in which the connecting tube 400 extends.

[0067] According to an alternative embodiment, referring to Figure 4 、 Figure 5A damping structure 500 is provided between the sampling portion 300 and the connecting portion 200 to allow the sampling portion 300 to remain at any position on the connecting portion 200 in the first direction. The damping structure 500 creates a certain amount of friction between the sampling portion 300 and the connecting portion 200. Under external force, the sampling portion 300 overcomes this friction and moves relative to the connecting portion 200. When the external force is removed, the friction immediately stops the movement of the sampling portion 300, thereby securing the sampling portion 300 relative to the connecting portion 200 until the next external force forces the sampling portion 300 to move. It can be understood that the damping structure 500 can be made of an elastic material, so as to increase the friction when the sampling part 300 moves relative to the connecting part 200. For example, the damping structure 500 can be elastic rubber, a spring clip, etc. When the damping structure 500 is a spring clip, the spring clip structure is arranged on the sampling part 300, and a plurality of slots are arranged along the extension direction of the connecting part 200. When an external force is applied to the sampling part 300 and the sampling part 300 is moved relative to the connecting part 200, the spring clip will move in different slots. When the external force is removed, the sampling part 300 will stop relative to the connecting part 200 under the action of the spring clip and the slot.

[0068] According to an alternative embodiment, referring to Figure 4 、 Figure 5 The damping structure 500 includes an elastic rubber 510 disposed on the sampling portion 300, with at least a portion of the elastic rubber 510 abutting against the connecting portion 200. Specifically, a slot is provided at the joint between the sampling portion 300 and the connecting portion 200, and the elastic rubber 510 is fixed within the slot, while the portion of the elastic rubber 510 located outside the slot can contact the surface of the connecting portion 200. The elastic rubber 510 creates a greater frictional force between the connecting portion 200 and the sampling portion 300, allowing the sampling portion 300 to remain at any position on the connecting portion 200. In some embodiments, the connecting portion 200 is provided with a groove 210 extending along a first direction, with at least a portion of the elastic rubber 510 embedded in the groove 210. By providing the groove 210, the contact area between the connecting portion 200 and the elastic rubber 510 can be reduced, thereby reducing the friction between the elastic rubber 510 and the connecting portion 200. This can avoid the situation where it is difficult to drive the sampling portion 300 to move by external force when the friction between the sampling portion 300 and the connecting portion 200 is too large.

[0069] In some embodiments, the sampling portion 300 is provided with a through hole, the connecting portion 200 is slidably engaged with the through hole, and the elastic rubber 510 is located in the through hole and fixed to the inner wall of the through hole. In order to ensure that there is sufficient friction between the connecting portion 200 and the elastic rubber 510, it is necessary to ensure sufficient pressure between the elastic rubber 510 and the connecting portion 200. Due to the presence of pressure, part of the elastic rubber 510 will be embedded in the groove 210, thereby forming a certain limit between the elastic rubber 510 and the groove 210. When the sampling portion 300 moves relative to the connecting portion 200, the sampling portion 300 will move along the extension direction of the groove 210, and the sampling portion 300 is not likely to rotate on the connecting portion 200. In some embodiments, the through hole can also be set as a polygonal hole with edges, such as a rectangular hole, a pentagonal hole, etc., so that when the connecting part 200 slides relative to the through hole, the two will not rotate relative to each other; it can be understood that the number of grooves 210 can be two or more, and when the number of grooves 210 is multiple, the multiple grooves 210 are distributed at circumferential intervals along the connecting part 200.

[0070] According to an alternative embodiment, referring to Figure 3 、 Figure 4 The connecting portion 200 and the fixed portion 100 rotate in conjunction with each other to allow the sampling portion 300 to move from one side of the endoscope 10 to the other side. That is, the connecting portion 200 can rotate relative to the fixed portion 100, thereby enabling the connecting portion 200 to drive the sampling portion 300 to rotate from one side of the fixed portion 100 to the other side, thereby adjusting the relative position between the sampling portion 300 and the endoscope 10, and facilitating the user to rotate the sampling portion 300 to the desired side according to usage habits. It is understood that the sampling portion 300 can not only move relative to the connecting portion 200 on the connecting portion 200, thereby allowing the sampling portion 300 to move closer to or further away from the connecting portion 200, but can also rotate around the fixed portion 100 along with the rotation of the connecting portion 200, thereby allowing the sampling portion 300 to move from one side of the endoscope 10 to the other side of the endoscope 10.

[0071] According to an alternative embodiment, referring to Figure 2 、 Figure 3A limiting structure is provided between the connecting portion 200 and the fixing portion 100 to limit the rotation angle of the connecting portion 200 relative to the fixing portion 100. The limiting structure includes a protrusion 220 provided on the connecting portion 200. The protrusion 220 protrudes from the connecting portion 200 and is located near the sampling portion 300. The fixing portion 100 is provided with a limiting groove 120 that cooperates with the protrusion 220. When the connecting portion 200 rotates relative to the fixing portion 100, the protrusion 220 slides within the limiting groove 120. In some embodiments, the protrusion 220 abuts the limiting groove 120 in the direction of the axis of rotation of the connecting portion 200, so that the protrusion 220 can directly transmit the applied force to the fixing portion 100. During use, in order to prevent the connecting portion 200 from interfering with other components of the endoscope 10, such as pipes or other instruments connected to the endoscope 10, when rotating relative to the fixing portion 100, the angle of rotation of the connecting portion 200 relative to the fixing portion 100 needs to be limited, so that the connecting portion 200 can move within a specified range relative to the fixing portion 100. The design of the protrusion 220 and the limiting groove 120 allows the protrusion 220 to move only within the limiting groove 120. When the protrusion 220 abuts the side wall of the limiting groove 120, the protrusion 220 will no longer be able to move within the limiting groove 120, thereby limiting the rotation range of the connecting portion 200 relative to the fixing portion 100.

[0072] It is understandable that when the sampling bottle 600 is connected to the sampling part 300, the combined weight of the sampling bottle 600 and the sampling part 300 will exert a certain force on the connecting part 200. Since the connecting part 200 is at a certain distance from the fixed part 100, the combined gravity of the sampling bottle 600 and the sampling part 300 will have a large force arm, resulting in a large stress concentration at the connection between the connecting part 200 and the fixed part 100. When the connecting part 200 rotates relative to the fixed part 100 during use, it is easy for the actual rotation center axis of the connecting part 200 to be offset from the expected rotation center axis. A certain angle causes the connection part 200 and the fixing part 100 to be easily worn. By arranging the protrusion 220 close to the sampling part 300, the protrusion 220 can play a certain supporting role on the connection part 200, thereby reducing the force arm of the common gravity of the sampling bottle 600 and the sampling part 300, making the stress at the connection between the connection part 200 and the fixing part 100 smaller, so that the actual rotation center of the connection part 200 is closer to the expected rotation center. When the connection part 200 rotates relative to the fixing part 100, it is beneficial to reduce the wear between the connection part 200 and the fixing part 100.

[0073] According to an optional embodiment, a support member (not shown) is removably provided in the groove 210, and at least a portion of the elastic rubber 510 abuts against the support member. Specifically, the support member is provided along the extension direction of the groove 210. Inserting the support member can increase the pressure between the elastic rubber 510 and the connecting portion 200, thereby increasing the friction between the elastic rubber 510 and the connecting portion 200. This prevents the sampling portion 300 from moving on the connecting portion 200 without external force after a period of use due to excessively low friction between the connecting portion 200 and the sampling portion 300 (for example, due to thermal expansion and contraction of the elastic rubber 510 due to temperature changes, resulting in low friction). The friction between the connecting portion 200 and the sampling portion 300 can also be adjusted according to actual usage.

[0074] A second aspect of this embodiment provides a detailed description of an endoscope.

[0075] Reference Figure 11 , an endoscope, including a handle 11, to which a sampling device of the above embodiment is connected. In this way, the endoscope 10 has the beneficial effects of the above sampling device, which will not be described in detail here. The endoscope 10 referred to in the embodiment of the present application can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, enteroscope, otoscope, rhinoscope, stomatoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc. The embodiment of the present application does not specifically limit the type of endoscope.

[0076] According to an optional embodiment, the handle 11 is provided with an elbow 12, and the sampling device is connected to the elbow 12. Specifically, the elbow 12 is connected to the sampling tube of the endoscope 10, and the fixing portion 100 is connected to the elbow 12, as shown in FIG. Figure 8 As shown, the elbow 12 is disposed on the handle 11. In some embodiments, the elbow 12 includes a first section 12a and a second section 12b. The central axis of the first section 12a intersects the central axis of the second end. The first section 12a is connected to the handle 11, and the second section 12b extends away from the insertion end of the endoscope 10. The fixing portion 100 is connected to the second section 12b. Specifically, the central axis of rotation of the connecting portion 200 about the fixing portion 100 is parallel to or coincides with the central axis of the second section 12b. It is understood that the central axis of the second section 12b is parallel to the central axis of the insertion end of the endoscope 10.

[0077] In some embodiments, the fixing part 100 is provided with an insertion groove 130, the second section 12b is inserted into the insertion groove 130, and a sealing rubber 140 is provided between the second section 12b and the insertion groove 130. By providing the elbow 12 and the insertion groove 130, it is convenient for users to disassemble the fixing part 100.

[0078] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A sampling device, characterized in that: include: A fixing portion (100) used for connecting to an endoscope (10); a connecting portion (200) connected to the fixing portion (100), and the connecting portion (200) extends from a side of the fixing portion (100) to a side away from the fixing portion (100); and A sampling portion (300) is movably disposed on the connecting portion (200) so that the sampling portion (300) can approach or move away from the fixing portion (100) along a first direction, and the sampling portion (300) is used to connect with a sampling bottle (600); A connecting tube (400) is provided between the sampling portion (300) and the fixing portion (100) and / or the endoscope (10), and the connecting tube (400) is a hose, and the length of the connecting tube (400) is not less than the maximum distance that the sampling portion (300) moves along the first direction.

2. A sampling device according to claim 1, characterized in that: The connecting pipe (400) is provided with a reinforcement structure, and the reinforcement structure is used to increase the rigidity of the pipe wall of the connecting pipe (400).

3. A sampling device according to claim 2, characterized in that: The reinforcement structure comprises: a spiral support structure arranged outside the connecting pipe (400); and / or, a spiral support structure disposed in the connecting pipe (400); and / or, a bellows structure provided on the connecting pipe (400); and / or, a reinforcing protrusion provided on the connecting tube (400) along the length direction of the connecting tube (400); and / or, a reinforcing tube disposed outside the connecting tube (400); and / or, a reinforcing tube disposed inside the connecting tube (400).

4. A sampling device according to claim 1, characterized in that: The connecting tube (400) is twisted, and when the two ends of the connecting tube (400) are close to each other, the connecting tube (400) is in a spiral shape; And / or, a first connector (410) is provided at one end of the connecting tube (400), and a second connector (420) is provided at the other end, the first connector (410) is connected to the sampling part (300), and the second connector (420) is connected to the fixing part (100) and / or the endoscope (10); the central axis of the first connector (410) and the central axis of the second connector (420) are not in the same plane or intersect.

5. A sampling device according to claim 1, characterized in that: A damping structure (500) is provided between the sampling portion (300) and the connecting portion (200), so that the sampling portion (300) can stay at any position of the connecting portion (200) in the first direction.

6. A sampling device according to claim 5, characterized in that: The damping structure (500) comprises an elastic rubber (510) arranged on the sampling portion (300), and at least a portion of the elastic rubber (510) abuts against the connecting portion (200); The connecting portion (200) is provided with a groove (210), the groove (210) extends along a first direction, and at least a portion of the elastic rubber (510) is embedded in the groove (210).

7. A sampling device according to any one of claims 1 to 6, characterized in that: The connecting portion (200) and the fixing portion (100) are rotatably matched so that the sampling portion (300) can be moved from one side of the endoscope (10) to the other side.

8. A sampling device according to claim 7, characterized in that: A limiting structure is provided between the connecting portion (200) and the fixing portion (100) to limit the rotation angle of the connecting portion (200) relative to the fixing portion (100); The limiting structure includes a protrusion (220) arranged on the connecting portion (200), the protrusion (220) protrudes from the connecting portion (200), and the protrusion (220) is located close to the sampling portion (300). The fixing portion (100) is provided with a limiting groove (120) that cooperates with the protrusion (220). When the connecting portion (200) rotates relative to the fixing portion (100), the protrusion (220) slides in the limiting groove (120).

9. An endoscope, characterized in that: It comprises a handle (11), and the handle (11) is connected to a sampling device according to any one of claims 1 to 8.

10. An endoscope according to claim 9, characterized in that: The handle (11) is provided with an elbow (12), and the sampling device is connected to the elbow (12).

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