Drainage catheter with impact type dredging mechanism

Abstract

The utility model discloses a drainage catheter with an impact type dredging mechanism, which can be used for carrying out impact dredging on the inside of a drainage tube under the condition that the connection state of the drainage tube is not released, so that the problem that the inside of the tube body is blocked is avoided, and the current flow velocity condition of drainage liquid can be checked in real time so as to be matched with the impact dredging mechanism for use. According to the key points of the technical scheme, the device comprises a tube body, an observation tube and a flushing tube, the tube body, the observation tube and the flushing tube are all transparent, the observation tube and the flushing tube are both arranged in the middle of the tube body, a speed limiting funnel and a guide tube are arranged in the observation tube, and the guide tube is communicated with the flushing tube; a flushing liquid structure communicated with the interior of the flushing pipe is arranged on one side of the flushing pipe. Drainage liquid in the observation pipe is in a fast dripping drainage state, the current drainage speed can be visually checked and determined through naked eyes, the blocking condition in the observation pipe and the flushing pipe can be checked, and meanwhile the dredging purposes of direct flushing and reverse impact can be achieved in cooperation with a flushing structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical field, concretely is a drainage catheter with impact type dredging mechanism. BACKGROUND

[0002] Drainage tube is a kind of common article in clinical medicine, is usually applied in various operations and medical procedures, such as abdominal cavity drainage, thoracic cavity drainage, wound drainage etc., usually cooperates with drainage bag.

[0003] Affected by disease or operation, part of patients' body can remain surgical tissue or blood clot, in the process of actual use drainage, possibly drains these impurities or thick body fluid, and the traditional drainage tube design usually lacks effective anti-blocking mechanism, is prone to cause drainage tube blockage, causes effusion to be unable to be discharged smoothly, can cause adverse effects to the rehabilitation and disease control of patient.

[0004] Currently, when facing the blockage condition, medical staff generally pulls out the drainage tube, and injects physiological saline into the drainage tube using a syringe, but since the end of the drainage tube is exposed to a large area in the air, there is a risk of reverse infection. INVENTION CONTENTS

[0005] The utility model aims at providing a drainage catheter with impact type dredging mechanism, which can impact and dredge the inside of the drainage tube without disconnecting the drainage tube, avoid the problem of blockage in the tube body, and can check the flow rate of the current drainage fluid in real time to cooperate with the impact dredging structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A drainage catheter with impact type dredging mechanism, comprising a tube body, an observation tube and a flushing tube, the tube body, the observation tube and the flushing tube are all transparent, the observation tube and the flushing tube are arranged in the middle part of the tube body, a speed-limiting funnel and a guide tube are arranged in the observation tube, the guide tube is communicated with the flushing tube, and a liquid flushing structure is arranged on one side of the flushing tube and communicated with the inside of the flushing tube.

[0008] Compared with the prior art, the drainage catheter with impact type dredging mechanism adopting the above technical scheme has the following beneficial effects:

[0009] The drainage catheter with impact type dredging mechanism of the utility model utilizes the light transmission property of the transparent material, the cooperation of the speed-limiting funnel and the guide tube for drainage, and the drainage fluid in the observation tube presents a rapid dripping drainage state, the current drainage speed can be directly observed and determined by naked eye, and the blockage in the observation tube and the flushing tube can be observed, and the liquid flushing structure can be used to realize direct flushing and reverse impact dredging, thereby avoiding a series of problems caused by blockage of the tube body.

[0010] Preferably, the liquid flushing structure comprises a liquid storage tube and a liquid flushing port, the liquid flushing port is located between the liquid storage tube and the flushing tube, and a one-way valve is arranged in the liquid flushing port, the side wall of the liquid storage tube is an extrusion part made of flexible material, the end of the liquid storage tube away from the flushing tube is a liquid injection port, and the liquid injection port is provided with a cover. By using the deformation characteristics of the flexible extrusion part, the volume of the liquid storage tube is changed by pressing the extrusion part, so that the internal flushing liquid (normal saline) pushes away the one-way valve and impacts the flushing tube, and the opening and closing of the liquid injection port and the cover can be used to supplement the liquid in the liquid storage tube after disinfection.

[0011] Preferably, the liquid flushing structure is a liquid injection tube arranged on one side of the flushing tube, and the end of the liquid injection tube is a positive pressure heparin cap. By using the positive pressure heparin cap in combination with the existing syringe, the flushing liquid is directly injected or injected in a regular pulse mode to achieve the impact and dredging function of the flushing tube.

[0012] Preferably, one side of the observation tube is provided with a material taking port, and the material taking port is provided with a sealing structure, and the tube body is provided with a flow stopping clamp near both ends. By using the flow stopping clamps at two positions, the purpose of closing the passages at both ends of the observation tube is achieved, so as to cooperate with the liquid flushing structure to impact and dredge, and cooperate with the material taking port and the sealing structure to achieve the purpose of taking out the blockage in the observation tube.

[0013] Preferably, the sealing structure comprises an extension tube and a cover, the extension tube is integrally connected with the material taking port, the cover is threadedly connected with the end of the extension tube away from the material taking port, and the side wall of the cover is connected with the extension tube through a positioning belt. While meeting the sealing requirement of the extension tube, the positioning belt is used to maintain the connection state of the cover and the extension tube, which can effectively avoid the loss of the cover and facilitate the subsequent material taking requirement.

[0014] Preferably, the extension tube is provided with a valve piece, the valve piece is connected with the inner wall of the extension tube through a rotating shaft, and a volute spring is arranged at the rotating shaft. By using the reset action of the volute spring and the opening and closing action of the valve piece on the passage of the extension tube, the passage can be automatically opened for material taking after the tool is placed in the extension tube, and the passage can be automatically closed after the blockage is taken out, avoiding the problem that part of the blockage or drainage liquid enters the extension tube, causing subsequent inconvenience in dredging.

[0015] Preferably, a valve flap is arranged inside the flushing pipe near the existing drainage bag valve flap, the flushing pipe is in a cylindrical structure, the shape of the valve flap is adapted to the shape of the inner diameter of the flushing pipe, and the outer side of the flushing pipe is provided with an adjusting assembly for controlling the orientation of the valve flap.

[0016] Preferably, the adjusting assembly comprises an adjusting seat, a knob and a movable shaft, the adjusting seat is arranged on the side wall of the flushing pipe, the knob is movably arranged on the side wall of the adjusting seat, and the knob is connected with the valve flap through the movable shaft, and a waterproof damping layer is arranged between the movable shaft and the adjusting seat. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a drainage catheter with an impact type dredging mechanism according to Embodiment 1 of the present application.

[0018] Figure 2 FIG. 2 is a detail schematic view of the embodiment.

[0019] Figure 3 FIG. 3 is a cross-sectional structural schematic view of the embodiment.

[0020] Figure 4 FIG. 4 is an enlarged detail schematic view of A in the embodiment.

[0021] Figure 5 FIG. 5 is a cross-sectional structural schematic view of the flushing pipe and the adjusting assembly in the embodiment (valve flap closed state).

[0022] Figure 6 FIG. 6 is a cross-sectional structural schematic view of the flushing pipe and the adjusting assembly in the embodiment (valve flap open state).

[0023] Figure 7 FIG. 7 is a structural schematic view of a drainage catheter with an impact type dredging mechanism according to Embodiment 2 of the present application.

[0024] : 0, drainage bag; 1, tube body; 10, flow stopper; 2, observation tube; 20, speed limiting funnel; 21, guide tube; 22, taking port; 3, flushing tube; 4, liquid storage tube; 40, liquid flushing port; 41, one-way valve; 42, extrusion part; 43, liquid injection port; 44, cover; 5, liquid injection tube; 50, positive pressure heparin cap; 6, sealing structure; 60, extension tube; 61, cover; 62, positioning belt; 63, valve piece; 64, rotating shaft; 7, valve flap; 8, adjusting assembly; 80, adjusting seat; 81, rotating knob; 82, movable shaft; 83, waterproof damping layer. DETAILED DESCRIPTION

[0025] The utility model will be further described below with reference to the drawings.

[0026] Embodiment 1:

[0027] As shown in the drainage catheter with the impact type dredging mechanism, including tube body 1, observation tube 2 and flushing tube 3. Figures 1 to 6 The observation tube 2 is provided with a speed limiting funnel 20 and a guide tube 21, and the guide tube 21 is communicated with the flushing tube 3.

[0028] In this embodiment, the liquid flushing structure includes a liquid storage tube 4 and a liquid flushing port 40, the liquid flushing port 40 is located between the liquid storage tube 4 and the flushing tube 3, the liquid flushing port 40 is provided with a one-way valve 41, the side wall of the liquid storage tube 4 is made of an extrusion part 42 of flexible material, the end of the liquid storage tube 4 away from the flushing tube 3 is a liquid injection port 43, and the liquid injection port 43 is provided with a cover 44 threadedly connected with the liquid injection port 43.

[0029] In order to avoid the blockage of the speed limiting funnel of the observation tube 2, one side of the observation tube 2 is provided with a taking port 22, and the taking port 22 is provided with a sealing structure 6, and the tube body 1 is provided with a flow stopper 10 near the two ends.

[0030] The sealing structure 6 includes an extension tube 60 and a cover 61, the extension tube 60 is integrally connected with the taking port 22, the cover 61 is threadedly connected with the end of the extension tube 60 away from the taking port 22, and the side wall of the cover 61 is connected with the extension tube 60 through a positioning belt 62.

[0031] The positioning belt 62 is made of flexible material (such as silicone or flexible PVC), which can adapt to the rotating state of the cover 61.

[0032]

[0033] ​And the extension tube 60 is provided with a valve piece 63, the valve piece 63 is connected with the inner wall of the extension tube 60 through a rotating shaft 64, and the rotating shaft 64 is provided with a volute spring. In the embodiment, the one-way valve 41 adopts the same structure as the valve piece 63.

[0034] The valve piece 7 is arranged in the flushing pipe 3 which is in a cylindrical structure, and the shape of the valve piece 7 is adapted to the inner diameter of the flushing pipe 3. The outer side of the flushing pipe 3 is provided with an adjusting assembly 8 for controlling the orientation of the valve piece 7.

[0035] The adjusting assembly 8 includes an adjusting seat 80, a rotating knob 81 and a movable shaft 82. The adjusting seat 80 is arranged on the side wall of the flushing pipe 3, the rotating knob 81 is movably arranged on the side wall of the adjusting seat 80, and the rotating knob 81 is connected with the valve piece 7 through the movable shaft 82. A waterproof damping layer 83 made of medical silica gel or medical rubber is arranged between the movable shaft 82 and the adjusting seat 80. In the embodiment, the waterproof damping layer 83 is in a ring structure arranged on one side of the rotating knob 81, and part of the waterproof damping layer 83 is movably arranged on the side wall of the flushing pipe 3 to prevent liquid leakage.

[0036] In addition, the limiting funnel, the guide pipe 21 and the liquid storage pipe 4 are transparent.

[0037] During use, due to the special structure of the limiting funnel, part of the blood clots, thick liquid or solid material is limited above the limiting funnel. The drainage liquid will pass through the guide pipe 21, the flushing pipe 3 and the pipe body 1 in sequence. The liquid passing through the guide pipe 21 will show a faster dripping state. The transparent observation pipe 2, the guide pipe 21 and the drainage bag 0 are used to observe the drainage speed.

[0038] If the drainage speed is slow or the drainage is blocked, the two flow-stopping clamps 10 can be used to block the paths of the pipe body 1 corresponding to the two ends of the observation pipe 2. The cover 61 is rotated to open the path of the extension tube 60. The valve piece 63 is opened by a pair of tweezers or a cotton swab, and the blocking material in the limiting funnel is removed. After disinfection, the cover 61 is re-covered.

[0039] If the flushing pipe 3 or the lower pipe body 1 is blocked, the embodiment can press the squeezing part 42 of the liquid storage pipe 4 back and forth, so that the flushing liquid (such as normal saline) pre-filled in the liquid storage pipe 4 pushes away the one-way valve 41 and impacts the flushing pipe 3 and the lower pipe body 1. For the case that the remaining amount in the liquid storage pipe 4 is insufficient, the flushing liquid can be injected by unscrewing the cover 44, and then the cover 44 is screwed tightly after disinfection. If the flushing pipe 3 is too blocked, the rotating knob 81 on the side wall of the adjusting seat 80 can be rotated to rotate the valve piece 7 through the movable shaft 82, so that the valve piece 7 is in the state shown in FIG. 6b. Figure 5In the state shown, the passage between the flushing pipe 3 and the lower pipe 1 is closed. At this time, the flushing fluid can be used to perform reverse flushing to adjust the state of the blockage, such as changing the direction of the blockage or dispersing the blockage. Then, the knob 81 is rotated in the reverse direction, so that the valve disc 7 forms as shown. Figure 6 As shown, open the passage between the flushing tube 3 and the lower tube 1 to collect the drainage fluid and dispersed blockage into the lower drainage bag 0.

[0040] Example 2:

[0041] like Figure 7 As shown, the technical content of this embodiment is basically the same as that of Embodiment 1. The difference between this embodiment and Embodiment 1 lies in the following technical points:

[0042] The flushing structure is a rigid injection tube 5 located on one side of the flushing tube 3, and the end of the injection tube 5 is a positive pressure heparin cap 50, and the injection tube 5 is transparent.

[0043] The syringe can be inserted and connected to the positive pressure heparin cap 50 to inject saline solution into the flushing tube 3 for impact and unblocking. During this process, the internal blockage can be directly injected to impact it, or a syringe pulse (push-stop-push injection method) can be used to impact the solution.

[0044] The above description is a preferred embodiment of the present utility model. For those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A drainage catheter with an impaction clearing mechanism, characterized by: Including pipe body (1), observation tube (2) and flush pipe (3), the pipe body (1), observation tube (2) and flush pipe (3) are transparent, the observation tube (2) and flush pipe (3) are located in the middle part of pipe body (1), the observation tube (2) is provided with a limited speed funnel (20) and guide pipe (21), and the guide pipe (21) is communicated with flush pipe (3), one side of flush pipe (3) is provided with a liquid flushing structure communicated with its inside.

2. The drainage catheter with an impaction unclogging mechanism according to claim 1, wherein: The liquid flushing structure includes a liquid storage tube (4) and a liquid flushing port (40), the liquid flushing port (40) is located between the liquid storage tube (4) and the flush pipe (3), and a one-way valve (41) is arranged in the liquid flushing port (40), the side wall of the liquid storage tube (4) is an extrusion part (42) made of flexible material, and the end of the liquid storage tube (4) away from the flush pipe (3) is a liquid injection port (43), and the liquid injection port (43) is provided with a cover (44).

3. The drainage catheter with impaction unclogging mechanism of claim 1, wherein: The liquid flushing structure is a liquid injection pipe (5) arranged on one side of the flush pipe (3), and the end of the liquid injection pipe (5) is a positive pressure heparin cap (50).

4. The drainage catheter with impaction unclogging mechanism of claim 1, wherein: One side of the observation tube (2) is provided with a taking port (22), and the taking port (22) is provided with a sealing structure (6), and the pipe body (1) is provided with a flow stopping clamp (10) near both ends.

5. The drainage catheter with an impaction unclogging mechanism according to claim 4, wherein: The sealing structure (6) includes an extension pipe (60) and a cover (61), the extension pipe (60) is integrally connected with the taking port (22), the cover (61) is threadedly connected with the end of the extension pipe (60) away from the taking port (22), and the side wall of the cover (61) is connected with the extension pipe (60) through a positioning belt (62).

6. The drainage catheter with an impaction unclogging mechanism according to claim 5, characterized in that: The extension pipe (60) is provided with a valve plate (63), the valve plate (63) is connected with the inner wall of the extension pipe (60) through a rotating shaft (64), and a volute spring is arranged at the rotating shaft (64).

7. A drainage catheter with an impact unclogging mechanism according to claim 2 or 3, characterized in that: The valve flap (7) is arranged in the flush pipe (3) near the valve flap (7) of the existing drainage bag (0), the flush pipe (3) is in a cylindrical structure, the shape of the valve flap (7) is adapted to the shape of the inner diameter of the flush pipe (3), and the outer side of the flush pipe (3) is provided with an adjusting assembly (8) for controlling the orientation of the valve flap (7).

8. The drainage catheter with impaction unclogging mechanism of claim 7, wherein: The adjusting assembly (8) includes an adjusting seat (80), a rotating knob (81) and a movable shaft (82), the adjusting seat (80) is arranged on the side wall of the flush pipe (3), the rotating knob (81) is movably arranged on the side wall of the adjusting seat (80), and the rotating knob (81) is connected with the valve flap (7) through the movable shaft (82), and a waterproof damping layer (83) is arranged between the movable shaft (82) and the adjusting seat (80).

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