An irrigation aspirator having a catheter fatigue prevention structure

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a flushing aspirator with catheter fatigue -resistant structure. The utility model discloses a kind of flushing aspirator with catheter fatigue -resistant structure to the problem that recovery ability becomes poor in prior art that internal pipeline is extruded for a long time, including handle with installation space inside and outer tube connected on handle, the installation space is equipped with suction pipe and flushing pipe, button assembly is correspondingly set to the outside of suction pipe and flushing pipe, the button assembly is movably connected on handle, further include the limiting component between button assembly and handle, when button assembly is pressed on limiting component, suction pipe and flushing pipe are in on state. The utility model is provided with the limiting component between button assembly and handle, which can limit button assembly, to avoid the problem of long-term extrusion of suction pipe and flushing pipe during storage, leading to fatigue and reduced elastic recovery.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a flushing and suction device with a catheter anti-fatigue structure. Background Technology

[0002] The endoscopic irrigation and aspiration device is a specialized medical instrument equipped with a pressure sensor and a flow control unit. It achieves liquid irrigation through a rolling or gravity-based positive pressure principle, and combines this with a negative pressure principle to perform liquid and solid aspiration operations. This device maintains a clean field of view during endoscopic diagnosis and treatment, preventing blood or foreign objects from obstructing the surgical field. Its clinical applications cover multiple specialties.

[0003] Existing irrigation aspirators achieve the opening and closing of the aspiration and irrigation tubing by squeezing the internal catheter. Due to the specific application scenario, the aspiration and irrigation tubing needs to be normally closed during use. Opening is only achieved by pressing a button to release external pressure. This results in the internal catheter being under constant pressure and closed during storage from production to clinical use. This prolonged pressure and closure causes fatigue, reducing the ability to recover from deformation at the compression point, ultimately leading to button malfunction and affecting clinical usability.

[0004] For example, a Chinese utility model patent discloses a rinsing suction device [application number: 201020553881.7]. This utility model patent includes a handle and a rinsing suction tube. The rinsing suction tube is divided into two channels: rinsing and suction. The two channels are connected to the rinsing tube and the suction tube respectively through flexible tubes. A rinsing button and a suction button are respectively provided on the two sections of the flexible tube. The rinsing button and the suction button are respectively located at the front and rear of the handle. The front end of the handle is provided with a streamlined groove.

[0005] This utility model patent has the advantages of effectively controlling the rinsing and suction process, and its handle front end is provided with a streamlined groove, which conforms to the ergonomic design and is easy for the operator to hold. However, it still does not solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a flushing suction device with a catheter anti-fatigue structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A flushing and suction device with a conduit anti-fatigue structure includes a handle with an internal installation space and an outer tube connected to the handle. The installation space contains a suction tube and a flushing tube. One end of each suction tube and flushing tube is connected to the outer tube, and the other end extends to the outside of the handle. A button assembly that has a squeezing tendency on the suction tube or flushing tube under normal conditions is correspondingly provided on the outside of each suction tube and flushing tube. The button assembly is movably connected to the handle. The device also includes a limiting component disposed between the button assembly and the handle and that can prevent the button assembly from moving relative to the handle. When the button assembly is pressed against the limiting component, the suction tube and flushing tube are in a conductive state.

[0008] In the above-mentioned flushing aspirator with a catheter anti-fatigue structure, the limiting component includes an ear fixedly connected to the outer surface of the handle. The side surface of the ear near the button assembly has a first limiting groove recessed into the ear. The surface of the button assembly is provided with a second limiting groove, and the second limiting groove and the first limiting groove are located in opposite positions. The limiting component also includes a limiting block, which can be simultaneously embedded in the first limiting groove and the second limiting groove.

[0009] In the above-mentioned flushing aspirator with a catheter anti-fatigue structure, there are two ears, which are symmetrically arranged on both sides of the button assembly.

[0010] In the above-mentioned flushing aspirator with a conduit anti-fatigue structure, the button assembly includes a button cap movably connected to the handle and a squeezing member for squeezing the suction tube or flushing tube, wherein the squeezing member and the button cap are elastically connected by an elastic member.

[0011] In the above-mentioned flushing aspirator with a conduit anti-fatigue structure, the squeezing component includes a valve body, one end of which is sleeved inside the button cap and the other end is fixedly connected to the squeezing part. The squeezing part is fixedly connected to the handle and has a squeezing surface on the side away from the valve body. The suction tube and / or flushing tube are attached to the squeezing surface. The device also includes a valve core for pulling the suction tube or flushing tube to move towards the squeezing surface. One end of the valve core is connected to the button cap and the other end passes through the valve body and is pressed against the outer surface of the suction tube or flushing tube.

[0012] In the above-mentioned flushing aspirator with a conduit anti-fatigue structure, the end of the valve core away from the button cap is an "L"-shaped hook, and the suction tube or flushing tube is fitted into the hook.

[0013] In the above-mentioned flushing aspirator with a conduit anti-fatigue structure, the axis of the valve body coincides with the axis of the valve core.

[0014] In the above-mentioned flushing suction device with a conduit anti-fatigue structure, the valve body surface has a protruding guide strip, the guide strip extends along the axial direction of the valve body, the inner surface of the button cap has an inwardly recessed guide groove, and the guide strip is slidably connected in the guide groove.

[0015] In the above-mentioned flushing aspirator with a conduit anti-fatigue structure, the elastic element is a spring, and the spring is in a compressed state when the limiting component cooperates with the button component.

[0016] Compared with existing technologies, the advantages of this utility model are: 1. This utility model provides a limiting component between the button assembly and the handle to limit the button assembly, so as to ensure that the suction tube and the rinsing tube remain in a normally closed state during use, and to avoid fatigue and reduced elastic recovery ability caused by long-term compression of the suction tube and the rinsing tube during storage.

[0017] 2. This utility model has a simple structure, is easy to use, and is suitable for large-scale promotion and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a structural diagram of the button component; In the diagram: 1. Handle; 2. Outer tube; 3. Installation space; 4. Suction tube; 5. Flushing tube; 6. Button assembly; 7. Limiting assembly; 61. Button cap; 62. Valve body; 63. Extrusion part; 64. Extrusion surface; 65. Valve core; 66. Elastic element; 67. Extrusion part; 68. Guide strip; 69. Guide groove; 71. Ear; 72. First limiting groove; 73. Second limiting groove; 74. Limiting block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Combination Figure 1 and Figure 2As shown, a flushing suction device with a conduit anti-fatigue structure includes a handle 1 with an internal installation space 3 and an outer tube 2 connected to the handle 1. The installation space 3 is provided with a suction tube 4 and a flushing tube 5. One end of the suction tube 4 and the flushing tube 5 are connected to the outer tube 2, and the other end extends to the outside of the handle 1. A button assembly 6 is provided on the outside of the suction tube 4 and the flushing tube 5, which has a squeezing tendency on the suction tube 4 or the flushing tube 5 under normal conditions. The button assembly 6 is movably connected to the handle 1. It also includes a limiting component 7 disposed between the button assembly 6 and the handle 1 and which can prevent the button assembly 6 from moving relative to the handle 1. When the button assembly 6 is pressed on the limiting component 7, the suction tube 4 and the flushing tube 5 are in a conductive state.

[0021] In this invention, during storage, the limiting component 7 is located between the button component 6 and the handle 1, limiting the button component 6. At this time, the suction tube 4 and the rinsing tube 5 are in a conductive state, preventing excessive compression of the suction tube 4 and the rinsing tube before use. During use, the limiting component 7 is removed, at which point the button component 6 compresses the suction tube 4 and the rinsing tube 5, bringing them to a normally closed state. When suction or rinsing is required, the corresponding button component 6 is pressed, opening the suction tube 4 or the rinsing tube 5, thereby achieving the suction or rinsing function. Therefore, this invention provides a limiting component 7 between the button component 6 and the handle 1 to limit the button component 6, ensuring that the suction tube 4 and the rinsing tube 5 remain normally closed during use, while also preventing fatigue and reduced elastic recovery caused by prolonged compression of the suction tube 4 and the rinsing tube 5 during storage.

[0022] like Figure 1 As shown, the limiting component 7 includes an ear 71 fixedly connected to the outer surface of the handle 1. The side surface of the ear 71 near the button assembly 6 has a first limiting groove 72 recessed into the ear 71. The surface of the button assembly 6 has a second limiting groove 73, and the second limiting groove 73 and the first limiting groove 72 are located in opposite positions. The limiting component 7 also includes a limiting block 74, which can be simultaneously embedded in the first limiting groove 72 and the second limiting groove 73. By simultaneously embedding the limiting block 74 into the first limiting groove 72 and the second limiting groove 73, the fastening force of the ear 71 can be transmitted to the button assembly 6, preventing the button assembly 6 from moving relative to the handle 1.

[0023] Preferably, there are two ears 71, which are symmetrically arranged on both sides of the button assembly 6. This ensures that the force applied by the ears 71 to the button assembly 6 is evenly distributed.

[0024] Combination Figure 2 and Figure 3As shown, the button assembly 6 includes a button cap 61 movably connected to the handle 1 and a squeezing member 67 for squeezing the suction tube 4 or the flushing tube 5. The squeezing member 67 and the button cap 61 are elastically connected by an elastic member 66. The elastic member 66 can be a spring, and when the limiting assembly 7 cooperates with the button assembly 6, the spring is in a compressed state.

[0025] Specifically, the extrusion component 67 includes a valve body 62, one end of which is fitted inside the button cap 61, and the other end is fixedly connected to the extrusion part 63. The extrusion part 63 is fixedly connected to the handle 1, and an extrusion surface 64 is provided on the side of the extrusion part 63 away from the valve body 62. The suction tube 4 and / or flushing tube 5 are attached to the extrusion surface 64. The component also includes a valve core 65 for pulling the suction tube 4 or flushing tube 5 to move towards the extrusion surface 64. One end of the valve core 65 is connected to the button cap 61, and the other end passes through the valve body 62 and is pressed against the outer surface of the suction tube 4 or flushing tube 5. The end of the valve core 65 away from the button cap 61 is an "L"-shaped hook, and the suction tube 4 or flushing tube 5 is embedded in the hook.

[0026] In use, after removing the limiting component 7, the elastic element 66, which was in a compressed state, returns to its original position. The button cap 61 moves away from the valve body 62 under the elastic action, and the valve core 65 moves synchronously under the action of the button cap 61. At this time, the "L"-shaped hook at the end of the valve core 65 squeezes the suction tube 4 or the flushing tube 5. With the cooperation of the squeezing surface 64, the suction tube 4 and the flushing tube 5 are in a normally closed state. When suction or flushing is needed, the user presses the button cap 61 to compress the elastic element 66, causing the suction tube 4 or the flushing tube 5 to return to a conductive state for suction or flushing.

[0027] Preferably, the centerline of the valve body 62 coincides with the centerline of the valve core 65.

[0028] like Figure 3 As shown, the valve body 62 has a protruding guide strip 68 on its surface, which extends along the axis of the valve body 62. The inner surface of the button cap 61 has an inwardly recessed guide groove 69, and the guide strip 68 is slidably connected within the guide groove 69. The guide strip 68 and the guide groove 69 cooperate to guide the direction of movement of the button cap 61 relative to the valve body 62.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0030] Although this document frequently uses terms such as handle 1, outer tube 2, installation space 3, suction tube 4, flushing tube 5, button assembly 6, limiting assembly 7, button cap 61, valve body 62, extrusion part 63, extrusion surface 64, valve core 65, elastic element 66, extrusion part 67, guide strip 68, guide groove 69, ear 71, first limiting groove 72, second limiting groove 73, and limiting block 74, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A flushing suction device with a conduit anti-fatigue structure, comprising a handle (1) having an internal mounting space (3) and an outer tube (2) connected to the handle (1), wherein a suction tube (4) and a flushing tube (5) are provided in the mounting space (3), wherein one end of the suction tube (4) and the flushing tube (5) are connected to the outer tube (2), and the other end extends to the outside of the handle (1), characterized in that: Both the suction tube (4) and the flushing tube (5) are provided with a button assembly (6) that has a squeezing tendency on the suction tube (4) or the flushing tube (5) under normal conditions. The button assembly (6) is movably connected to the handle (1). It also includes a limiting component (7) disposed between the button assembly (6) and the handle (1) and can prevent the button assembly (6) from moving relative to the handle (1). When the button assembly (6) is pressed on the limiting component (7), the suction tube (4) and the flushing tube (5) are in a conductive state.

2. The irrigation suction device with a catheter anti-fatigue structure as described in claim 1, characterized in that: The limiting component (7) includes an ear (71) fixedly connected to the outer surface of the handle (1). The ear (71) has a first limiting groove (72) recessed into the ear (71) on the side surface near the button assembly (6). The button assembly (6) has a second limiting groove (73) and the second limiting groove (73) is located in a relative position to the first limiting groove (72). The limiting component (7) also includes a limiting block (74), which can be simultaneously embedded in the first limiting groove (72) and the second limiting groove (73).

3. The flushing suction device with a catheter anti-fatigue structure as described in claim 2, characterized in that: The ear portion (71) has two parts and is symmetrically arranged on both sides of the button assembly (6).

4. The irrigation suction device with a catheter anti-fatigue structure as described in claim 1, characterized in that: The button assembly (6) includes a button cap (61) movably connected to the handle (1) and a squeeze member (67) for squeezing the suction tube (4) or the flushing tube (5), the squeeze member (67) being elastically connected to the button cap (61) by an elastic member (66).

5. A flushing suction device with a catheter anti-fatigue structure as described in claim 4, characterized in that: The extrusion component (67) includes a valve body (62), one end of which is fitted inside the button cap (61), and the other end is fixedly connected to the extrusion part (63). The extrusion part (63) is fixedly connected to the handle (1), and the side of the extrusion part (63) away from the valve body (62) is provided with an extrusion surface (64). The suction tube (4) and / or the flushing tube (5) are attached to the extrusion surface (64). It also includes a valve core (65) for pulling the suction tube (4) or the flushing tube (5) to move towards the extrusion surface (64). One end of the valve core (65) is connected to the button cap (61), and the other end passes through the valve body (62) and is pressed on the outer surface of the suction tube (4) or the flushing tube (5).

6. A flushing suction device with a catheter anti-fatigue structure as described in claim 5, characterized in that: The valve core (65) has an "L"-shaped hook at the end away from the button cap (61), and the suction tube (4) or flushing tube (5) is fitted into the hook.

7. A flushing suction device with a conduit anti-fatigue structure as described in claim 5, characterized in that: The centerline of the valve body (62) coincides with the centerline of the valve core (65).

8. A flushing suction device with a catheter anti-fatigue structure as described in claim 5, characterized in that: The valve body (62) has a protruding guide strip (68) on its surface. The guide strip (68) extends along the axis of the valve body (62). The inner surface of the button cap (61) has an inwardly recessed guide groove (69). The guide strip (68) is slidably connected in the guide groove (69).

9. A flushing suction device with a conduit anti-fatigue structure as described in claim 4, characterized in that: The elastic element (66) is a spring, and when the limiting component (7) cooperates with the button component (6), the spring is in a compressed state.

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