Connecting device and chest drainage bottle

Abstract

The utility model provides a connecting device and a chest drainage bottle. The connecting device comprises a first connecting piece and a second connecting piece which are detachably connected. A first partition plate is arranged on the inner wall of the first connecting piece, a liquid outlet hole is formed in the first partition plate, the periphery of the liquid outlet hole extends upwards to form a first inner pipe, a sealing plate is arranged at the end, away from the liquid outlet hole, of the first inner pipe, a plurality of liquid outlets are formed in the surface of the periphery, close to the liquid outlet hole, of the first inner pipe, and a piston is arranged in the first inner pipe; the piston is connected with a sealing plate through a spring; a second partition plate is arranged on the inner wall of the second connecting piece, a liquid inlet hole aligned with the liquid outlet is formed in the second partition plate, the periphery of the liquid inlet hole extends towards the first inner pipe to form a second inner pipe, and a plurality of liquid inlets are formed in the surface of the periphery of the second inner pipe. When the first connecting piece is separated from the second connecting piece, the piston automatically plugs the liquid outlet hole under the action of the spring, a hemostatic forceps is not needed to clamp a pipeline in the replacement process, the operation process is greatly simplified, and the working efficiency is improved.

Description

Technical Field

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

[0002] In the existing medical field, especially in thoracic drainage surgery, a thoracic drainage bottle is widely used to collect, record and observe the liquid or gas discharged from the thoracic cavity.

[0003] The thoracic drainage bottle usually consists of a bottle body and a pipeline. The bottle body is connected to the drainage tube in the patient's thoracic cavity through the pipeline to achieve continuous or intermittent drainage of liquid.

[0004] However, in actual application, when it is necessary to separate the bottle body from the pipeline for replacement, cleaning or maintenance, the problem of liquid leakage often occurs. In order to avoid the liquid in the pipeline from leaking out during the separation process, medical staff usually need to use a hemostatic forceps to clamp the pipeline. This step not only prolongs the replacement process but also increases the consumable cost. Summary of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a connecting device and a thoracic drainage bottle to solve the technical problems mentioned in the above background art.

[0006] On the one hand, the utility model provides a connecting device, which includes a first connecting piece and a second connecting piece that are detachably connected. The central axes of the first connecting piece and the second connecting piece are collinear, and there is an interconnected channel between the two;

[0007] The inner wall of the first connecting piece is provided with a first partition board. A liquid outlet hole is opened on the first partition board. The periphery of the liquid outlet hole extends upward to form a first inner tube. One end of the first inner tube away from the liquid outlet hole is provided with a closing plate. A plurality of liquid outlet ports are arranged on the peripheral surface of the first inner tube close to the liquid outlet hole. A piston is arranged in the first inner tube, and the piston is connected to the closing plate through a spring;

[0008] The inner wall of the second connecting piece is provided with a second partition board. A liquid inlet hole aligned with the liquid outlet port is opened on the second partition board. The periphery of the liquid inlet hole extends towards the direction of the first inner tube to form a second inner tube, and a plurality of liquid inlet ports are arranged on the peripheral surface of the second inner tube.

[0009] Further, in the connecting device, the first inner tube includes a first closed tube section and a plurality of first columns annularly arranged at one end of the first closed tube section. A liquid outlet port is formed between adjacent two first columns.

[0010] Further, for the connecting device, the second inner tube includes a second closed tube section, a fixing ring, and a plurality of second upright columns. The plurality of second upright columns are connected between the fixing ring and the second closed tube section, and a liquid inlet is formed between two adjacent second upright columns.

[0011] Further, for the connecting device, a top plate is provided on the inner side of the fixing ring.

[0012] Further, for the connecting device, a plurality of protrusions are provided at the opening of the first connecting member, and a clamping groove cooperating with the protrusions is provided at the opening of the second connecting member.

[0013] Further, for the connecting device, external threads are provided on the outer walls of both the first connecting member and the second connecting member. A nut is sleeved on the second connecting member, and internal threads cooperating with the external threads are provided on the inner wall of the nut.

[0014] Further, for the connecting device, an axial limiting stop is provided at one end of the nut away from the first connecting member.

[0015] Further, for the connecting device, at least two connecting arms extend outward from the periphery of the closing plate, and one end of each connecting arm away from the closing plate is fixedly connected to the inner wall of the first connecting member.

[0016] Further, for the connecting device, the first partition has a conical surface with a gradually increasing diameter from bottom to top, and the second partition has a conical surface with a gradually increasing diameter from top to bottom.

[0017] On the other hand, the present utility model provides a thoracic drainage bottle, including the connecting device in the above technical solution.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] Through the combined design of the piston, spring, first inner tube, and second inner tube, when the first connecting member and the second connecting member are combined, the two are made to communicate with each other by the second inner tube pushing the piston. When the first connecting member and the second connecting member are separated, the piston automatically blocks the liquid outlet hole under the action of the spring. During the replacement process, there is no need to use a hemostat to clamp the pipeline, which greatly simplifies the operation process and improves the work efficiency. Description of the Drawings

[0020] Figure 1 is an exploded view of the connecting device in the present utility model;

[0021] Figure 2 is a cross-sectional view of the present utility model in a state where the first connecting member and the second connecting member are separated;

[0022] Figure 3 This is a cross-sectional view of the first and second connecting members in the assembled state of the present utility model;

[0023] Figure 4 This is a schematic structural view of the first inner tube and the second inner tube of the present utility model;

[0024] Description of main component symbols:

[0025] 10. First connecting member; 11. First partition; 12. First inner tube; 121. First closed pipe section; 122. First column; 13. Closed plate; 14. Piston; 15. Spring; 20. Second connecting member; 21. Second partition; 22. Second inner tube; 221. Second closed pipe section; 222. Fixed ring; 223. Second column; 224. Top plate; 31. Protrusion; 32. Card slot; 41. External thread; 42. Nut; 43. Internal thread; 44. Limit stop; 50. Connecting arm.

[0026] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific embodiments

[0027] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figures 1 to 4, the connecting device in the first embodiment of the present utility model includes a first connecting member 10 and a second connecting member 20 which are detachably connected. The axis lines of the first connecting member 10 and the second connecting member 20 are collinear, and there is an interconnected channel between the two;

[0031] The inner wall of the first connecting member 10 is provided with a first partition 11. A liquid outlet hole aligned with the axis line of the first connecting member 10 is formed on the first partition 11. A first inner tube 12 extends upward from the periphery of the liquid outlet hole. A closing plate 13 is provided at one end of the first inner tube 12 away from the liquid outlet hole. A plurality of liquid outlet ports are provided on the peripheral surface of the first inner tube 12 near the liquid outlet hole. A piston 14 is arranged in the first inner tube 12, and the piston 14 is connected to the closing plate 13 through a spring 15;

[0032] The inner wall of the second connecting member 20 is provided with a second partition 21. A liquid inlet hole aligned with the liquid outlet port is formed on the second partition 21. The periphery of the liquid inlet hole extends towards the first inner tube 12 to form a second inner tube 22, and a plurality of liquid inlet ports are provided on the peripheral surface of the second inner tube 22.

[0033] Through the combined design of the piston 14, the spring 15, the first inner tube 12 and the second inner tube 22, when the first connecting member 10 and the second connecting member 20 are combined, the second inner tube 22 pushes the piston 14 to make the two interconnected. When the first connecting member 10 is separated from the second connecting member 20, the piston 14 automatically blocks the liquid outlet hole under the action of the spring 15. There is no need to use a hemostatic forceps to clamp the pipeline during the replacement process, which greatly simplifies the operation process and improves the work efficiency.

[0034] It should be noted that in actual application, the first connecting member 10 is connected to the pipeline of the thoracic drainage bottle, the second connecting member 20 is connected to the body of the thoracic drainage bottle, and the end of the pipeline away from the first connecting member 10 is connected to the drainage tube in the patient's thoracic cavity. When the first connecting member 10 and the second connecting member 20 are assembled together, the second inner tube 22 passes through the liquid outlet hole and pushes the piston 14. Thus, the first connecting member 10 and the second connecting member 20 are interconnected through the aligned liquid outlet ports and liquid inlet ports. The liquid inside the first connecting member 10 can flow into the second inner tube 22 through the aligned liquid outlet ports and liquid inlet ports, and then flow into the second connecting member 20 through the liquid inlet hole; when the first connecting member 10 is separated from the second connecting member 20, the second inner tube 22 no longer applies a pushing force to the piston 14. Thus, the piston 14 quickly blocks the liquid outlet hole under the elastic force of the spring 15 to prevent the pleural effusion from leaking out from the end of the pipeline. There is no need to use a hemostatic forceps to clamp the pipeline during the whole replacement process, which greatly simplifies the operation process and improves the work efficiency.

[0035] Refer to Figure 1 and Figure 2, both the first connecting member 10 and the second connecting member 20 are cylindrical structures. External threads 41 are provided on the outer walls of the first connecting member 10 and the second connecting member 20. A nut 42 is sleeved on the second connecting member 20, and internal threads 43 that match the external threads 41 are provided on the inner wall of the nut 42. It can be understood that when the first connecting member 10 and the second connecting member 20 are axially butted, rotate the nut 42 until the internal threads 43 of the nut 42 simultaneously engage with the external threads 41 on the first connecting member 10 and the second connecting member 20, and the assembly integration between the first connecting member 10 and the second connecting member 20 can be achieved. Preferably, in order to ensure the sealing performance after the assembly of the first connecting member 10 and the second connecting member 20, the external threads 41 and the internal threads 43 in this embodiment are designed with thickening, which can effectively prevent slipping off.

[0036] In addition, in this embodiment, the number of turns of the external threads 41 on the second connecting member 20 is less than the number of turns of the external threads 41 on the first connecting member 10. So that during assembly, the nut 42 can quickly transition from the second connecting member 20 to a part of the first connecting member 10, reducing the rotation time of the nut 42 on a single second connecting member 20 and improving the assembly efficiency.

[0037] Furthermore, referring to Figure 2 , an axial limiting stopper 44 is provided at one end of the nut 42 away from the first connecting member 10. The axial limiting stopper 44 is used to abut against the end face in the axial direction of the external threads 41 of the second connecting member 20 to limit the axial movement range of the nut 42 on the second connecting member 20 and prevent the nut 42 from rotating excessively and disengaging from the second connecting member 20.

[0038] Furthermore, referring to Figure 2 , at least two connecting arms 50 extend outward from the periphery of the closing plate 13, and one end of the connecting arm 50 away from the closing plate 13 is fixedly connected to the inner wall of the first connecting member 10. In this embodiment, the number of connecting arms 50 is 4. The closing plate 13 and the first connecting member 10 are fixedly connected through the connecting arms 50 to further improve the structural stability of the first inner tube 12 and ensure that the axis of the first inner tube 12 is always aligned with the axis of the first connecting member 10.

[0039] Referring to Figure 4 , the first partition 11 has a conical surface with a gradually increasing diameter from bottom to top, and the second partition 21 has a conical surface with a gradually increasing diameter from top to bottom. It can be understood that the conical surface structure design of the first partition 11 accelerates the flow of the liquid in the first connecting member 10, which is beneficial to the accumulated liquid flowing more quickly to the aligned liquid outlet and liquid inlet, improving the drainage efficiency; the conical surface structure design of the second partition 21 further expands the opening of the liquid inlet hole, which helps to reduce the blockage of the second inner tube 22.

[0040] Referring toFigure 4 , the first inner tube 12 includes a first closed tube section 121, and a plurality of first upright columns 122 annularly arranged at one end of the first closed tube section 121. A liquid outlet is formed between two adjacent first upright columns 122. Specifically, in this embodiment, the closing plate 13 is arranged at the upper end of the first closed tube section 121, and the first upright columns 122 are connected between the first closed tube section 121 and the first partition plate 11. Among them, the number of the upright columns is 4, so that 4 larger-sized liquid outlets are formed on the peripheral surface of the first inner tube 12, making it easier for the accumulated liquid to pass through and not easily forming blockages.

[0041] Continue to refer to Figure 4 , the second inner tube 22 includes a second closed tube section 221, a fixing ring 222 and a plurality of second upright columns 223. The second closed tube section 221 is integrally formed on the second partition plate 21. A plurality of the second upright columns 223 are connected between the fixing ring 222 and the second closed tube section 221. A liquid inlet is formed between two adjacent second upright columns 223, and the number of the liquid inlets is the same as the number of the liquid outlets.

[0042] Specifically, refer to Figure 3 , which shows a schematic diagram after the first connecting member 10 and the second connecting member 20 are assembled. At this time, the second inner tube 22 pushes the piston 14 so that the piston 14 is located in the first closed tube section 121, the spring 15 is in a compressed state, and the liquid outlet is aligned with the liquid inlet; refer to Figure 2 , which shows a schematic diagram after the first connecting member 10 and the second connecting member 20 are separated. At this time, the piston 14 is reset under the action of the spring 15, and at the same time, the liquid outlet and the liquid outlet hole are closed.

[0043] Furthermore, refer to Figure 4 , a top plate 224 is arranged on the inner side of the fixing ring 222. The top plate 224 can be integrally formed with the second inner tube 22. On the one hand, the top plate 224 is used to improve the structural strength of the second inner tube 22, and on the other hand, when the first connecting member 10 and the second connecting member 20 are aligned, a uniform pushing force is applied to the piston 14 to ensure the smooth upward sliding of the piston 14.

[0044] Furthermore, refer to Figure 1 and Figure 2, a plurality of protrusions 31 are provided at the opening of the first connecting member 10, and a clamping groove 32 that cooperates with the protrusions 31 is provided at the opening of the second connecting member 20. By connecting the clamping groove 32 with the protrusions 31 in a matching manner, the first connecting member 10 and the second connecting member 20 can be butt-jointed at a predetermined angle in the circumferential direction, ensuring that the liquid outlet and the liquid inlet are accurately aligned after the two are butted, and there will be no overlapping phenomenon. After the first inner tube 12 and the second inner tube 22 coincide, the opening size formed by the alignment of the liquid outlet and the liquid inlet is maximized, making the accumulated liquid easier to discharge and not easily blocked.

[0045] In summary, for the connecting device in the above embodiments of the present invention, through the combined design of the piston 14, the spring 15, the first inner tube 12 and the second inner tube 22, when the first connecting member 10 and the second connecting member 20 are combined, the second inner tube 22 pushes the piston 14 to make the two communicate with each other. When the first connecting member 10 and the second connecting member 20 are separated, the piston 14 automatically blocks the liquid outlet hole under the action of the spring 15. During the replacement process, there is no need to use a hemostat to clamp the pipeline, which greatly simplifies the operation process and improves the work efficiency.

[0046] The second embodiment of the present invention further provides a thoracic drainage bottle, including the connecting device described in the above technical solution.

[0047] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A connection device, characterized in that: It comprises a first connecting member and a second connecting member which are detachably connected, wherein the axis lines of the first connecting member and the second connecting member are co-linear, and both are provided with a mutually communicating passage; The inner wall of the first connecting member is provided with a first partition, a liquid outlet hole is provided on the first partition, the periphery of the liquid outlet hole extends upward to form a first inner tube, a closing plate is provided at one end of the first inner tube away from the liquid outlet hole, a plurality of liquid outlets are provided on the peripheral surface of the first inner tube close to the liquid outlet hole, a piston is provided in the first inner tube, and the piston is connected to the closing plate through a spring; A second partition is provided on the inner wall of the second connecting member, a liquid inlet hole aligned with the liquid outlet is opened on the second partition, the periphery of the liquid inlet hole extends toward the first inner tube to form a second inner tube, and a plurality of liquid inlets are provided on the peripheral surface of the second inner tube.

2. The connection device according to claim 1, characterized in that: The first inner tube includes a first closed tube section and a plurality of first columns arranged in an annular array at one end of the first closed tube section, and the liquid outlet is formed between two adjacent first columns.

3. The connection device according to claim 1, characterized in that: The second inner tube includes a second closed tube section, a fixing ring and a plurality of second columns. The plurality of second columns are connected between the fixing ring and the second closed tube section, and the liquid inlet is formed between two adjacent second columns.

4. The connection device according to claim 3, characterized in that: A top plate is arranged on the inner side of the fixing ring.

5. The connection device according to claim 1, characterized in that: A plurality of protrusions are arranged at the opening of the first connecting member, and a clamping groove cooperating with the protrusions is arranged at the opening of the second connecting member.

6. The connection device according to claim 1, characterized in that: The outer walls of the first connecting member and the second connecting member are both provided with external threads, a nut is sleeved on the second connecting member, and the inner wall of the nut is provided with internal threads matching with the external threads.

7. The connection device according to claim 6, characterized in that: An axial limit stop is provided at one end of the nut away from the first connecting member.

8. The connection device according to claim 1, characterized in that: At least two connecting arms extend outward from the periphery of the closing plate, and one end of the connecting arm away from the closing plate is fixedly connected to the inner wall of the first connecting member.

9. The connection device according to claim 1, characterized in that: The first partition plate has a conical surface with a diameter gradually increasing from bottom to top, and the second partition plate has a conical surface with a diameter gradually increasing from top to bottom.

10. A chest drainage bottle, characterized in that: The invention comprises the connecting device according to any one of claims 1 to 9.

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