Thoracic cavity closed drainage connecting tube

Abstract

The utility model relates to a thoracic cavity closed drainage connecting tube which comprises a sleeve and a rotating drum which is located in the sleeve, matched with the sleeve and capable of rotating relative to the sleeve, two connecting pipelines are symmetrically arranged on the outer circle face of the sleeve in the radial direction of the sleeve, and a first through hole communicated with the two connecting pipelines is formed in the sleeve in the radial direction of the sleeve. A second through hole corresponding to the first through hole in position is formed in the rotating drum in the radial direction of the rotating drum, and a limiting structure used for limiting the rotating drum after rotation is further arranged on the rotating drum; the limiting structure comprises a limiting sleeve which is located in the second through hole and is in sliding fit with the second through hole, a movable strip is arranged on the limiting sleeve, and the limiting sleeve can be matched with the first through hole. The thoracic cavity closed drainage connecting tube is used for connecting a drainage tube and a drainage bag, can ensure that liquid in the drainage tube can be stopped without using foreign objects when the drainage bag is replaced, and avoids liquid leakage when the drainage bag is replaced, so that pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a closed thoracic drainage connecting tube. Background Art

[0002] Closed thoracic drainage is to place one end of the drainage tube into the thoracic cavity, and the other end is connected to a water seal bottle at a lower position to discharge gas or collect the liquid in the thoracic cavity, so that the lung tissue can reopen and recover its function. As a treatment means, it is widely used in the drainage of hemothorax, pneumothorax, empyema and after thoracotomy, and plays a very important role in the treatment of diseases.

[0003] When replacing the drainage bag of the existing closed thoracic drainage tube, usually a stop clamp is used to clamp one end of the drainage tube first, and then the drainage bag is replaced. The above operation has some deficiencies: in order to prevent liquid leakage and cause pollution, every time the drainage bag is replaced, it is necessary to use an external object to clamp the drainage tube first and then replace it, and the operation is relatively cumbersome. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a closed thoracic drainage connecting tube for connecting the drainage tube and the drainage bag, which can ensure that the liquid in the drainage tube can be stopped without using an external object when replacing the drainage bag, avoid liquid leakage when replacing the drainage bag, and thus avoid causing pollution.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a closed thoracic drainage connecting tube, including a sleeve and a rotating cylinder located inside the sleeve and cooperating with it and capable of rotating relatively. Two connecting pipes are symmetrically arranged on the outer circular surface of the sleeve along its radial direction. A first through hole communicating with both connecting pipes is opened on the sleeve along its radial direction. A second through hole corresponding to the position of the first through hole can be opened on the rotating cylinder along its radial direction. The rotating cylinder is also provided with a limiting structure for limiting the rotated rotating cylinder.

[0006] Compared with the prior art, the beneficial effect of this solution is that before draining the effusion in the patient's thoracic cavity, first connect the two connecting pipes to the free ends of the drainage bag and the drainage tube respectively, and then rotate the rotating cylinder until the second through hole on it is aligned with the first through hole on the sleeve. The liquid flows from the drainage tube to the connecting pipe, and passes through the first through hole and the second through hole to flow to the drainage bag. When it is necessary to replace the drainage bag, rotate the rotating cylinder until the second through hole on it is completely misaligned with the first through hole on the sleeve and limit it through the limiting structure. At this time, the rotating cylinder seals the sleeve, and the liquid cannot flow from the second through hole to the drainage bag, ensuring that the liquid will not continue to flow out when replacing the drainage bag. The closed thoracic drainage connecting tube can replace the drainage bag without using an external object to stop the flow of the drainage tube, and the liquid will not leak during replacement, thus avoiding causing pollution.

[0007] As a preferred embodiment of the present utility model, a rotating handle for driving the rotating cylinder to rotate is fixedly connected above the rotating cylinder. A through groove communicating with the second through hole is formed in the rotating handle along the axial direction of the rotating cylinder. The limiting structure includes a limiting sleeve located in the second through hole and slidably matched with it. A moving strip is provided on the limiting sleeve. The moving strip extends out of the through groove in the vertical direction. Along the radial direction of the rotating cylinder, a tension spring is connected between the moving strip and the side wall of the through groove. The limiting sleeve can be matched with the first through hole.

[0008] Beneficial effects of this solution: After rotating the rotating cylinder until the second through hole on it is aligned with the first through hole, the moving strip moves towards the direction close to one of the connecting pipes under the drive of the tension spring, thereby driving the limiting sleeve to snap into the first through hole, fixing the rotating cylinder to the sleeve. The liquid flows from the drainage pipe to the connecting pipe, and passes through the first through hole and the second through hole to flow into the drainage bag. When the drainage bag needs to be replaced, move the moving strip in the direction away from the above-mentioned connecting pipe, thereby driving the limiting sleeve to withdraw from the first through hole. At this time, rotate the rotating cylinder until the second through hole and the first through hole are completely misaligned, ensuring that the liquid will not continue to flow out when replacing the drainage bag; drive the rotation of the rotating cylinder by rotating the rotating handle, making the operation more convenient.

[0009] As a preferred embodiment of the present utility model, a blind hole having the same height and diameter as the first through hole is provided inside the sleeve along its radial direction.

[0010] Beneficial effects of this solution: After driving the limiting sleeve to withdraw from the first through hole by the moving strip, rotate the rotating cylinder by a certain angle and then let go. After letting go, the moving strip moves towards the direction close to one of the connecting pipes under the drive of the tension spring. At this time, the limiting sleeve abuts against the inner side wall of the sleeve, and then rotate the rotating cylinder until the limiting sleeve snaps into the blind hole, limiting the rotating cylinder and the sleeve in a misaligned state, avoiding the rotation of the rotating cylinder during the replacement of the drainage bag, and thus avoiding the coincidence of the first through hole and the second through hole and the leakage of liquid from this channel.

[0011] As a preferred embodiment of the present utility model, two blind holes are symmetrically arranged along the radial direction of the sleeve. The limiting sleeve and the moving strip are both symmetrically arranged in two along the radial direction of the rotating cylinder. A tension spring is connected between each moving strip and the side wall of the through groove.

[0012] Beneficial effects of this solution: Two blind holes, limiting sleeves and moving strips are symmetrically arranged. During drainage, the two limiting sleeves are respectively snapped into both ends of the through hole. When replacing the drainage bag, the two limiting sleeves are respectively snapped into the two blind holes, making the connection between the rotating cylinder and the sleeve more stable.

[0013] As a preferred embodiment of the present utility model, threads are provided inside the ends of the two connecting pipes away from the sleeve.

[0014] Explanation: When connecting the drainage bag and the drainage tube through this closed thoracic drainage connecting tube, first, heparin caps with threads on the outer cylindrical surface are sleeved on the free ends of the drainage bag and the drainage tube respectively.

[0015] Beneficial effects of this solution: The two connecting pipes are threadedly connected to the drainage tube and the drainage bag respectively, which is convenient for both connection and disassembly, and is convenient for replacing the drainage bag.

[0016] As a preferred embodiment of the present utility model, protective sleeves are movably connected to the mutually remote ends of the two connecting pipes. The protective sleeves can axially expand and contract along the connecting pipes and are fixed outside the connecting pipes through friction.

[0017] Beneficial effects of this solution: In the initial state, the protective sleeve provided at one end of the connecting pipe does not extend beyond the connecting pipe. After the connecting pipe is threadedly connected to the drainage tube and the drainage bag, move the two protective sleeves in the mutually remote directions until they reach the position where they cannot move further due to friction. At this time, the protective sleeves cover the connection between the connecting pipe and the drainage tube and the drainage bag, which can not only prevent liquid from leaking from the connection, but also strengthen the connection. Description of the drawings

[0018] Figure 1 It is a schematic diagram of an embodiment of the closed thoracic drainage connecting tube of the present utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the closed thoracic drainage connecting tube of the present utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the sleeve in this embodiment.

[0021] Figure 4 It is a schematic diagram of the structure of the rotary handle and the rotary cylinder in this embodiment.

[0022] Figure 5 It is a schematic diagram of the structure of the limiting structure in this embodiment. Specific implementation manners

[0023] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the described preferred embodiments are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0024] The terms "first", "second", etc. in the specification, claims, and embodiments of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0025] The present utility model is further described in detail below through preferred specific implementation manners:

[0026] The reference numerals in the drawings of the specification include: sleeve 1, first through hole 101, blind hole 102, rotating cylinder 2, second through hole 201, connecting pipe 3, rotating handle 4, through slot 401, limiting sleeve 5, moving bar 6, tension spring 7, thread 8, and protective sleeve 9.

[0027] As shown in the Figure 1 and Figure 3 drawings: The closed thoracic drainage connecting pipe of this embodiment includes a sleeve 1 and a rotating cylinder 2 located inside the sleeve 1 and cooperating with it and capable of relative rotation. On the outer circumferential surface of the sleeve 1, two connecting pipes 3 are symmetrically arranged along its radial direction. Threads 8 are provided inside both ends of the two connecting pipes 3 far away from the sleeve 1. Protective sleeves 9 are movably connected to both ends of the two connecting pipes 3 away from each other. The protective sleeves 9 can expand and contract along the axial direction of the connecting pipes 3 and are fixed outside the connecting pipes 3 by friction. A first through hole 101 communicating with both connecting pipes 3 is radially opened on the sleeve 1. Two blind holes 102 with the same height and diameter as the first through hole 101 are symmetrically arranged along the radial direction inside the sleeve 1.

[0028] As shown in the Figure 2 and Figure 4 drawings: A second through hole 201 corresponding to the position of the first through hole 101 is radially opened on the rotating cylinder 2. A rotating handle 4 for driving the rotation of the rotating cylinder 2 is fixedly connected above the rotating cylinder 2. A through slot 401 communicating with the second through hole 201 is axially opened on the rotating handle 4 along the rotating cylinder 2.

[0029] As shown in the Figure 2 and Figure 5 drawings: A limiting structure for limiting the rotated rotating cylinder 2 is further provided on the rotating cylinder 2. The limiting structure includes a limiting sleeve 5 located inside the second through hole 201 and slidably cooperating with it. A moving bar 6 is provided on the limiting sleeve 5. The moving bar 6 extends out of the through slot 401 in the vertical direction. Along the radial direction of the rotating cylinder 2, a tension spring 7 is connected between the moving bar 6 and the side wall of the through slot 401. The limiting sleeve 5 can match the first through hole 101. Two limiting sleeves 5 and two moving bars 6 are symmetrically arranged along the radial direction of the rotating cylinder 2. A tension spring 7 is connected between each moving bar 6 and the side wall of the through slot 401.

[0030] Specific usage process:

[0031] In the initial state, the second through-hole 201 provided on the rotary drum 2 is aligned with the first through-hole 101 provided on the sleeve 1, and the two limit sleeves 5 are respectively located in the first through-holes 101 at both ends, that is, the rotary drum 2 and the sleeve 1 are fixed together. When draining the effusion in the patient's chest cavity, first threadedly connect the two connecting pipes 3 to the free ends of the drainage bag and the drainage tube respectively with the threads 8. After connection, move the two protective sleeves 9 in the direction away from each other until they are moved to a position where they cannot continue to move due to friction. The protective sleeves 9 cover the connection parts of the connecting pipes 3 with the drainage tube and the drainage bag. At this time, the liquid can flow through the drainage tube and this closed thoracic drainage connecting tube into the drainage bag.

[0032] When the drainage bag needs to be replaced, move the two moving bars 6 in the direction close to each other, so as to drive the two limit sleeves 5 to withdraw from the first through-hole 101. After driving the limit sleeves 5 to withdraw from the first through-hole 101 through the moving bars 6, rotate the rotary drum 2 by a certain angle, and then let go. After letting go, the moving bars 6 move in the direction close to the connecting pipes 3 under the drive of the tension springs 7. At this time, the limit sleeves 5 abut against the inner side wall of the sleeve 1. Then rotate the rotary drum 2 until the two limit sleeves 5 are respectively snapped into the two blind holes 102 to limit the rotary drum 2 and the sleeve 1 in the misaligned state. At this time, the drainage bag can be replaced. After replacement, rotate the rotary drum 2 again to the state where the second through-hole 201 on it is aligned with the first through-hole 101 and the limit sleeves 5 are snapped into the first through-hole 101, so as to carry out drainage.

[0033] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. The typical well-known structures and common knowledge technologies in the preferred embodiments are not described in detail here. Those of ordinary skill in the art can, under the inspiration given in this embodiment, combine their own abilities to complete and implement the technical solution of the present utility model. Some typical well-known structures, well-known methods or common knowledge technologies should not become an obstacle for those of ordinary skill in the art to implement the present application.

[0034] The scope of protection required by the present application shall be subject to the content of its claims. The content recorded in the utility model content, specific implementation manners and the drawings of the description is used to explain the claims.

[0035] Within the scope of the technical concept of the present application, several modifications can also be made to the specific implementation manners of the present application. These modified specific implementation manners should also be regarded as within the scope of protection of the present application.

Claims

1. A chest closed drainage connecting tube, characterized in that: It includes a sleeve and a rotating drum located in the sleeve and cooperating with the sleeve and capable of relative rotation. Two connecting pipes are symmetrically arranged along the radial direction on the outer circular surface of the sleeve. A first through hole connected to both connecting pipes is opened along the radial direction on the sleeve. A second through hole corresponding to the position of the first through hole is opened along the radial direction on the rotating drum. The rotating drum is also provided with a limiting structure for limiting the rotating drum after rotation.

2. The chest closed drainage connecting tube according to claim 1, characterized in that: A rotating handle for driving the rotating drum to rotate is fixedly connected above the rotating drum, and a through groove connected to the second through hole is opened on the rotating handle along the axial direction of the rotating drum. The limiting structure includes a limiting sleeve located in the second through hole and slidingly engaged with the second through hole, and a moving bar is provided on the limiting sleeve. The moving bar extends out of the through groove in the vertical direction, and a tension spring is connected between the moving bar and the side wall of the through groove along the radial direction of the rotating drum, and the limiting sleeve can match the first through hole.

3. The chest closed drainage connecting tube according to claim 2, characterized in that: A blind hole having the same height and diameter as the first through hole is provided inside the sleeve along its radial direction.

4. The chest closed drainage connecting tube according to claim 3, characterized in that: Two blind holes are symmetrically arranged along the radial direction of the sleeve, two limiting sleeves and two moving bars are symmetrically arranged along the radial direction of the rotating drum, and a tension spring is connected between each moving bar and the side wall of the through slot.

5. The chest closed drainage connecting tube according to claim 1, characterized in that: The insides of the ends of the two connecting pipes away from the sleeve are both provided with threads.

6. The chest closed drainage connecting tube according to claim 5, characterized in that: The ends of the two connecting pipes that are away from each other are both movably connected with a protective sleeve, and the protective sleeve can be stretched and retracted along the axial direction of the connecting pipe and is fixed to the outside of the connecting pipe through friction.

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