Needle cylinder type negative pressure drainage collector

Abstract

The utility model relates to the technical field of medical instruments, in particular to a needle cylinder type negative pressure drainage collector. The needle cylinder type negative pressure drainage collector comprises a collecting pipe, a piston in sliding connection is arranged in the collecting pipe, the outer wall of the piston abuts against and is in sliding connection with the inner wall of the collecting pipe, a communicated drainage pipe is arranged on the side, away from the piston, of the collecting pipe, and a pipe clamp is arranged on the drainage pipe. A connecting column is arranged on the side, away from the drainage tube, of the piston, and a top piece is arranged at the end, away from the piston, of the connecting column. According to the needle cylinder type negative pressure drainage collector provided by the utility model, the piston is matched with the collecting tube to form the needle cylinder type negative pressure drainage collector, when the needle cylinder type negative pressure drainage collector is used, the fixed capacity is formed in the collecting tube firstly by extracting the piston, the negative pressure is formed at the same time, and then drainage can be carried out through pressure difference; and more accurate drainage can be carried out through the fixed volume in the collecting tube.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a syringe-type negative pressure drainage collector. Background Art

[0002] Breast cancer is a common malignant tumor in women. Modified radical mastectomy is the main treatment for breast cancer. Subcutaneous effusion, also known as subcutaneous seroma, is one of the most common complications after modified radical mastectomy. The incidence of this complication is about 17%-63% abroad and about 6%-42% in China. Although subcutaneous effusion does not affect the survival and prognosis of patients, it significantly prolongs the postoperative hospital stay and increases the chance of postoperative wound infection, increasing the economic and mental burden on patients.

[0003] Currently, the main clinical treatment for subcutaneous effusion is puncture drainage, and the drainage fluid is mainly collected by drainage bags and drainage bottles. However, the puncture drainage of subcutaneous effusion after breast cancer surgery is small in volume, often less than 30 ml in 24 hours. The drainage volume measurement data using drainage bags or drainage bottles is inaccurate, and due to the large volume, it is inconvenient and unsightly for discharged patients in the recovery period to carry home, which affects the patient's image and psychology.

[0004] Therefore, it is necessary to provide a new syringe-type negative pressure drainage collector to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a syringe-type negative pressure drainage collector.

[0006] The syringe-type negative pressure drainage collector provided by the utility model comprises: a collecting tube, a slidably connected piston is provided inside the collecting tube, the outer wall of the piston abuts against and is slidably connected to the inner wall of the collecting tube, a connected drainage tube is provided on the side of the collecting tube away from the piston, a tube clamp is provided on the drainage tube, a connecting column is provided on the side of the piston away from the drainage tube, a top sheet is provided at the end of the connecting column away from the piston, and the outside of the top sheet is connected to the collecting tube through a limiting component.

[0007] Preferably, the limiting component comprises a support rod, the support rod is arranged on a side of the top plate close to the outer wall of the piston, and two threaded limiting caps are provided on the outer wall of the support rod.

[0008] Preferably, a guide rod is fixedly connected to the other side of the top plate close to the outer wall of the piston, and an auxiliary scale bar is provided on the outer wall of the guide rod.

[0009] Preferably, both sides of the collecting tube away from one end of the drainage tube are provided with convex pieces, the interior of the convex pieces is provided with through holes, and the inner walls of the through holes are abutted against and slidably connected to the outer walls of the corresponding guide rod and support rod.

[0010] Preferably, an adapter tube connected to the end of the collecting tube away from the convex piece is inserted, a regulating valve is provided on the adapter tube, and the end of the adapter tube away from the collecting tube is connected to the drainage tube through an adapter.

[0011] Preferably, the piston is made of rubber, and there is an interference fit between the piston and the collecting tube.

[0012] Compared with the related art, the syringe-type negative pressure drainage collector provided by the utility model has the following beneficial effects:

[0013] 1. The syringe-type negative pressure drainage collector formed by the cooperation of the piston and the collection tube of the utility model can first form a fixed volume inside the collection tube by drawing the piston when in use, and at the same time form a negative pressure, and then drainage can be carried out through the pressure difference, and then more accurate drainage can be carried out through the fixed volume inside the collection tube.

[0014] 2. The overall appearance of the utility model is small and neat, which makes it lighter and more beautiful for patients to carry at home and go out. When in use, the device can be relatively hidden to avoid leakage of the device, which has a lighter psychological impact on the patient and reduces the impact on the patient's normal work and life.

[0015] 3. The utility model has a simple structure, is easy to produce, and is more convenient to operate, and is more convenient and quicker for patients to learn and use.

[0016] 4. The overall cost of the utility model is low, and when patients use it in the later stage, it can also reduce the financial pressure of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of the syringe-type negative pressure drainage collector provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the piston and its components shown;

[0019] Figure 3 for Figure 1 A schematic diagram of a partial cross-sectional structure of a collecting tube shown;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the drainage tube and its components shown.

[0021] Numbers in the figure: 1. collecting tube; 11. convex piece; 12. through hole; 2. drainage tube; 21. tube clamp; 22. adapter; 3. piston; 31. connecting column; 32. top plate; 33. support rod; 331. limit cap; 34. guide rod; 341. auxiliary scale bar; 4. adapter tube; 41. regulating valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] See also Figures 1 to 4 The embodiment of the utility model provides a syringe-type negative pressure drainage collector, which includes: a collection tube 1.

[0025] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 and Figure 3 A slidably connected piston 3 is provided inside the collecting tube 1, and the outer wall of the piston 3 is abutted against and slidably connected to the inner wall of the collecting tube 1. A connected drainage tube 2 is provided on the side of the collecting tube 1 away from the piston 3, and a tube clamp 21 is provided on the drainage tube 2. A connecting column 31 is provided on the side of the piston 3 away from the drainage tube 2, and a top sheet 32 ​​is provided at the end of the connecting column 31 away from the piston 3, and the outside of the top sheet 32 ​​is connected to the collecting tube 1 through a limiting component. The limiting component includes a support rod 33, and the support rod 33 is arranged on a side of the top sheet 32 ​​close to the outer wall of the piston 3, and two threaded limiting caps 331 are provided on the outer wall of the support rod 33. The piston 3 is made of rubber, and the piston 3 and the collecting tube 1 have an interference fit.

[0026] It should be noted that: by arranging a piston 3 with an interference fit and a sliding connection inside the collecting tube 1, before use, when the user seals the drainage tube 2 through the tube clamp 21 and extracts the piston 3 through the connecting column 31, a negative pressure can be smoothly formed inside the collecting tube 1. At the same time, through the limiting caps 331 on both sides of the outer wall of the support rod 33, after the piston 3 is moved to the desired position, the limiting caps 331 are twisted to make the two limiting caps 331 smoothly abut against the two sides of the convex piece 11 on the outer wall of the collecting tube 1, and the piston 3 can be smoothly limited to avoid the automatic resetting of the piston 3 when the user releases the driving force on the connecting column 31. At this time, the collecting tube 1 can smoothly drain the accumulated fluid through the negative pressure extracted from the inside in the later stage.

[0027] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 and Figure 3A fixedly connected guide rod 34 is provided on the other side of the top plate 32 close to the outer wall of the piston 3, and an auxiliary scale bar 341 is provided on the outer wall of the guide rod 34. Both sides of the collecting tube 1 away from the end of the drainage tube 2 are provided with protrusions 11, and a through hole 12 is provided inside the protrusion 11, and the inner wall of the through hole 12 is abutted against and slidably connected with the outer wall of the corresponding guide rod 34 and the support rod 33.

[0028] It should be noted that: through the through hole 12, a sliding connection is established between the guide rod 34 and the support rod 33. During use, the through hole 12 can smoothly guide the sliding return of the guide rod 34 and the support rod 33, thereby preventing the piston 3 from rotating randomly during the movement of the connecting column 31, thereby improving the stability of the piston 3 during the extraction process. At the same time, by providing an auxiliary scale bar 341 on the outer wall of the guide rod 34, during the extraction and movement of the piston 3, the user's palm can hold the collection tube 1 and cover the scale on the outer wall of the collection tube 1, and can also smoothly know the moving distance of the piston 3 through the value on the auxiliary scale bar 341, so that the user can control the moving distance of the piston 3 more accurately.

[0029] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 An adapter tube 4 connected to the collecting tube 1 is inserted at one end away from the convex piece 11 , and a regulating valve 41 is provided on the adapter tube 4 . The end of the adapter tube 4 away from the collecting tube 1 is connected to the drainage tube 2 through an adapter 22 .

[0030] It should be noted that: by using the adapter 22 to connect the drainage tube 2 and the adapter tube 4, in the later use process, after the drainage of the accumulated fluid is completed, the adapter tube 4 and the collection tube 1 can be disassembled from the adapter 22 to reduce the number of components left on the patient. By setting the tube clamp 21, after the drainage is completed, the drainage tube can be sealed by the tube clamp 21 to avoid the outflow of the patient's accumulated fluid. By setting the regulating valve 41 on the adapter tube 4, the patient can control the drainage speed as needed during later use.

[0031] The working principle of the syringe-type negative pressure drainage collector provided by the utility model is as follows:

[0032] When the drainage collection device is used later, the drainage tube 2 can be first connected to the patient's pleural cavity with effusion, and then the tube clamp 21 on the drainage tube 2 and the regulating valve 41 on the transfer tube 4 can be closed. At this time, the piston 3 can be driven to move inside the collection tube 1 by holding the top sheet 32 ​​and the connecting column 31. During the movement of the piston 3, the scale bar on the collection tube 1 can be used for comparison, so that the piston 3 can be smoothly moved to the desired position;

[0033] At this time, by closing the pipe clamp 21 and the regulating valve 41, when the extraction piston 3 moves, negative pressure can be smoothly formed inside the collecting tube 1, and at this time, one hand can fix the position of the piston 3 through the connecting column 31, and the other hand can control the limit caps 331 on both sides of the outer wall of the support rod to move, until the limit caps 331 on both sides smoothly abut against the outer wall of the corresponding convex piece 11, the support rod 33 can be limited by the threaded structure between the limit caps 331 and the support rod 33, and then the piston 3 can be fixed and limited by the top plate 32 and the connecting column 31, so as to avoid the phenomenon of the piston 3 being reset and moved due to negative pressure;

[0034] After the piston 3 is fixed, the collecting tube 1 can be fixed at the desired position by means of tape or bandage, and then the tube clamp 21 can be opened, and the flow aperture inside the connecting tube can be controlled by means of the regulating valve 41, so that the drainage tube 2, the transfer tube 4 and the collecting tube 1 can be smoothly connected. At this time, the negative pressure inside the collecting tube 1 can smoothly make the effusion in the patient's chest wall flow into the collecting tube 1 and be smoothly collected;

[0035] After the drainage and collection of the effusion is completed, the drainage tube 2 can be clamped by the tube clamp 21 to make it closed, and then the adapter tube 4 and the collection tube 1 can be taken out through the adapter 22 to complete the use of the device.

[0036] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Syringe-type negative pressure drainage collector, characterized in that: include: A collecting tube (1), wherein a slidably connected piston (3) is provided inside the collecting tube (1), the outer wall of the piston (3) abuts against and is slidably connected to the inner wall of the collecting tube (1), a connected drainage tube (2) is provided on the side of the collecting tube (1) away from the piston (3), a tube clamp (21) is provided on the drainage tube (2), a connecting column (31) is provided on the side of the piston (3) away from the drainage tube (2), a top sheet (32) is provided at the end of the connecting column (31) away from the piston (3), and the outside of the top sheet (32) is connected to the collecting tube (1) via a limiting component.

2. The syringe-type negative pressure drainage collector according to claim 1, characterized in that: The limiting component comprises a support rod (33), the support rod (33) is arranged on a side of the top plate (32) close to the outer wall of the piston (3), and two threaded limiting caps (331) are provided on the outer wall of the support rod (33).

3. The syringe-type negative pressure drainage collector according to claim 2, characterized in that: A guide rod (34) is fixedly connected to the other side of the top plate (32) close to the outer wall of the piston (3), and an auxiliary scale bar (341) is provided on the outer wall of the guide rod (34).

4. The syringe-type negative pressure drainage collector according to claim 3, characterized in that: The collecting tube (1) is provided with convex pieces (11) on both sides of one end away from the drainage tube (2), a through hole (12) is provided inside the convex piece (11), and the inner wall of the through hole (12) abuts against and is slidably connected to the outer wall of the corresponding guide rod (34) and the support rod (33).

5. The syringe-type negative pressure drainage collector according to claim 4, characterized in that: An adapter tube (4) connected to the collecting tube (1) is inserted into the end of the collecting tube (1) away from the convex piece (11), a regulating valve (41) is provided on the adapter tube (4), and the end of the adapter tube (4) away from the collecting tube (1) is connected to the drainage tube (2) via an adapter (22).

6. The syringe-type negative pressure drainage collector according to claim 1, characterized in that: The piston (3) is made of rubber material, and there is an interference fit between the piston (3) and the collecting tube (1).

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