Rapid chest drainage suit
By combining a vacuum drainage bottle, a soft needle, and an extension needle, the problem of long chest drainage time in existing methods is solved, enabling a fast and safe drainage process that is suitable for various patient types.
Patent Information
- Application Number
- CN202422629194.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing chest drainage devices have a long drainage time, especially when changing drainage bottles or bags, which takes a long time and affects treatment efficiency.
It uses a vacuum drainage bottle combined with a soft needle and an extension needle. The soft needle has a naturally curved tip with a drainage hole, and the extension needle can extend the usable length. It is equipped with a balloon for quick identification and replacement of the vacuum bottle, simplifying the assembly process.
It speeds up drainage, shortens the time for assembling and replacing vacuum bottles, is suitable for patients of different body types, and reduces the risk of tissue damage and drainage hole blockage.
Smart Images

Figure CN223542231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chest drainage devices, specifically to a rapid chest drainage kit. Background Technology
[0002] Thoracic drainage is a technique that involves inserting a drainage tube into the chest cavity and connecting it to a drainage device (such as a drainage bottle or a negative pressure suction device) to remove abnormal accumulations such as air, fluid, and pus from the chest cavity, thereby restoring normal pressure and physiological environment to the chest cavity. Doctors choose the appropriate drainage tube material and insertion position according to the patient's condition. It is widely used in cases of pneumothorax, pleural effusion, empyema, and post-thoracic surgery. It can relieve symptoms, promote lung re-expansion, control infection, and drain exudate and blood, and is crucial for the diagnosis and treatment of chest diseases and patient recovery.
[0003] The instruments used for chest drainage include rigid puncture needles, flexible puncture needles, drainage tubes, drainage bottles, etc. The drainage time is mainly determined by the duration of the following steps: During the drainage stage, when using ordinary drainage bottles or drainage bags, drainage is carried out by positional difference and gravity, which gradually slows down the drainage speed, thus increasing the total drainage time; in addition, the time spent changing the drainage bottle or drainage bag (due to the inconvenience of replacement) also increases the total drainage time. Utility Model Content
[0004] This invention provides a rapid chest drainage kit to solve the problem of long chest drainage time.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A rapid chest drainage kit includes a soft needle, an extension needle, a drainage assembly, and a vacuum bottle. The soft needle is placed in the body through thoracentesis. One end of the drainage assembly is connected to the soft needle, and the other end is connected to the vacuum bottle. The drainage assembly includes a drainage tube with a balloon and control components for judging and quickly changing the vacuum bottle.
[0007] Furthermore, the extension needle is used by embedding it into the soft needle.
[0008] Furthermore, the front end portion of the needle body of the soft needle and the extension needle has a naturally curved shape.
[0009] Furthermore, the soft needle consists of a Luer head and a needle body connected to the Luer head.
[0010] Furthermore, the extension needle consists of a Luer adapter and an extension needle body connected to the Luer adapter. The Luer adapter has a structure with a male Luer connector on the outside and a female Luer connector on the inside.
[0011] Furthermore, the soft needle and the extension needle have several drainage holes on their bodies for drainage.
[0012] Furthermore, the drainage assembly is composed of a connector, a drainage tube, and an insertion head connected in sequence. The main body of the connector is a Luer adapter, and the lower end of the connector extends outward to form a hollow tubular connecting tube for connecting the drainage tube. The Luer adapter has a structure with a male Luer connector on the outside and a female Luer connector on the inside.
[0013] Furthermore, the insertion head is a hollow, pointed, rigid needle.
[0014] Furthermore, the vacuum bottle consists of a bottle body and a rubber stopper that seals the bottle opening.
[0015] Furthermore, the insert head is inserted into the vacuum bottle via a rubber stopper.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] Compared with existing drainage methods that rely on positional differences and gravity, this invention uses a vacuum drainage bottle, which is also a widely used instrument in clinical practice. Using it in chest cavity drainage can speed up the drainage process.
[0018] This invention is equipped with a soft needle and an extension needle with a naturally curved front end and several drainage holes, so that when used inside the body, it can effectively avoid damage to the tissue and ensure continuous drainage (avoiding drainage hole blockage and poor drainage).
[0019] This utility model is equipped with an extension needle, which expands the applicability of the kit, making it suitable for obese patients and those with less effusion to perform thoracic drainage.
[0020] The drainage component of this invention is key, enabling rapid assembly. It only requires connecting a soft needle or extension needle to both ends and a vacuum bottle. Simultaneously, the drainage component shortens the vacuum bottle replacement time and allows for accurate determination of when to replace it. Specifically, as the negative pressure inside the vacuum bottle decreases, the balloon in the drainage component gradually inflates and fills, indicating it's time to replace the vacuum bottle. Furthermore, during replacement, simply close the control unit in the drainage component, empty the balloon, and then insert and remove the insertion head within the drainage component to complete the vacuum bottle replacement. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a rapid chest drainage kit according to an embodiment of this utility model;
[0022] Figure 2 This is a schematic diagram of the soft needle structure in the rapid chest drainage kit of this utility model embodiment;
[0023] Figure 3 This is a schematic diagram of the structure of the first Luer head in the rapid chest drainage kit of this utility model embodiment;
[0024] Figure 4 This is a schematic diagram of the connector structure in the rapid chest drainage kit of this utility model embodiment;
[0025] Figure 5 This is a schematic diagram of the drainage component in the rapid chest drainage kit of this utility model embodiment;
[0026] Figure 6 This is a schematic diagram of the vacuum bottle in the rapid chest drainage kit of this utility model embodiment.
[0027] Among them, 10-soft needle, 110-Luer female head, 120-needle body, 130-drainage hole, 20-extension needle, 210-first Luer conversion connector, 220-extension needle body, 30-drainage assembly, 310-connector, 311-second Luer conversion connector, 312-connecting tube, 320-drainage tube, 330-control component, 340-balloon, 350-insertion head, 40-vacuum bottle, 410-bottle body, 420-rubber stopper. Detailed Implementation
[0028] The embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the following embodiments are only preferred embodiments of the present invention and not all embodiments.
[0029] This embodiment mainly shortens the drainage time in the following ways: shortening the system assembly and debugging time, speeding up the drainage process, and shortening the time for replacing the collection bottle.
[0030] Based on the above requirements, the rapid chest drainage kit consists of four main components, such as... Figure 1 As shown, the components are a soft needle 10, an extension needle 20, a drainage assembly 30, and a vacuum bottle 40, which are assembled in this order during use.
[0031] Among them, such as Figure 2As shown, the soft needle 10 is inserted into the body (achieved through thoracentesis). It consists of a Luer head 110 and a needle body 120 connected to the Luer head 110. The tip of the needle body 120 is made of soft material, and it has several drainage holes 130. When the needle body 120 is inserted into the body, as the thoracentesis needle is withdrawn, the tip of the needle body 120 naturally bends. This bend reduces damage to organs and ensures the safety of the drainage process (as pleural effusion is drained, the lungs move closer to the needle body 120, and the naturally bent needle body 120 makes the pleural drainage process safer). The presence of drainage holes 130 increases the drainage channel and prevents blockage of any drainage hole, which could slow down the drainage rate and cause patient discomfort.
[0032] Generally, the length of a thoracentesis needle is between 5-10 cm, and the corresponding length of a 10mm flexible needle should not exceed the length of the thoracentesis needle. However, for cases with thicker fat layers and less pleural effusion, a longer needle is needed to reach the effusion. In such cases, the extension needle 20 from the kit should be used. Figure 3 As shown, the extension needle 20 consists of a first Luer adapter 210 and an extension needle body 220 connected to the first Luer adapter 210. The overall size of the extension needle 20 is smaller than that of the soft needle 10. Specifically, the first Luer adapter 210 and the Luer female head 110 are a set of connecting parts with compatible dimensions. The diameter of the extension needle body 220 is smaller than the diameter of the needle body 120, allowing the extension needle body 220 to pass through the needle body 120 and enter the body. Similar to the needle body 120, the extension needle body 220 also has a structure with multiple drainage holes 130 and a naturally curved front end. The length of the extension needle 20 can be as long as 20-30 cm.
[0033] The drainage assembly 30 is connected to the Luer female connector 110 (using only the soft needle 10) or the first Luer adapter 210 (using the extension needle 20), which is connected via the connector 310, such as... Figure 4 As shown, the main body of connector 310 is a second Luer converter 311, and the drainage assembly 30 is connected to the Luer female connector 110 or the first Luer converter 210 through the second Luer converter 311. The other end of the second Luer converter 311 (the end not connected to the Luer female connector 110 and the first Luer converter 210) has an outwardly extending connecting tube 312 for connecting the drainage tube 320.
[0034] like Figure 5 As shown, the drainage assembly 30 is composed of a connector 310, a drainage tube, and an insertion head 350. The insertion head 350 is a hollow, pointed, hard needle that can pierce the rubber stopper 420.
[0035] A balloon 340 is installed on the drainage tube 320. The balloon 340 is integrally formed with the drainage tube 320 and has the same internal structure. A control component 330 is movably fixed to the outside of the drainage tube 320. The opening and closing of the drainage tube 320 is controlled by the fastening and opening of the control component 330. The specific structure of the control component 330 is widely used in the prior art. For example, patent CN202321818928 discloses the structure of the control component 330, so it will not be described in detail here.
[0036] like Figure 6 As shown, the vacuum bottle 40 consists of a bottle body 410 and a rubber stopper 420 fixed to the mouth of the bottle body 410. The insertion head 350 is inserted through the rubber stopper 420 and connected to the bottle body 410.
[0037] The working principle of this embodiment:
[0038] First, insert the soft needle 10 into the body through a thoracentesis needle. Depending on the actual needs, consider whether to use the extension needle 20.
[0039] Next, close the drainage tube 320 with the control device 330, connect the drainage assembly 30 directly to the soft needle 10 through the connector 310, and connect the other end of the drainage assembly 30 to the inside of the vacuum bottle 40 through the insert 350, thereby quickly constructing a drainage channel. Open the control device 330 to start drainage.
[0040] Next, as the drainage volume increases, the vacuum level inside the vacuum bottle gradually decreases. When the balloon 340 is filled with drainage fluid, the control device 330 is closed, and the drainage fluid inside the balloon 340 is squeezed into the vacuum bottle 40.
[0041] Next, remove the inserter 350 from the rubber stopper and insert it into the new vacuum bottle 40, then turn on the control 330 to drain the fluid.
[0042] Finally, after the drainage is complete, close the control unit 330 and remove the soft needle 10.
[0043] The above embodiments are not intended to limit the scope of protection of this utility model. Without departing from the inventive concept of this utility model, all modifications and improvements made by those skilled in the art to the technical solutions of this utility model should fall within the scope of protection defined by the claims of this utility model.
Claims
1. A rapid chest drainage kit, characterized in that, The kit includes a soft needle, an extension needle, a drainage assembly, and a vacuum bottle. The soft needle is placed in the body through thoracentesis. One end of the drainage assembly is connected to the soft needle, and the other end is connected to the vacuum bottle. The drainage assembly includes a drainage tube with a balloon and control components for judging and quickly changing the vacuum bottle.
2. The rapid chest drainage kit according to claim 1, characterized in that, The extension needle is used by embedding it into the soft needle.
3. The rapid chest drainage kit according to claim 1, characterized in that, The front end of the soft needle and the extension needle has a naturally curved shape.
4. The rapid chest drainage kit according to claim 1, characterized in that, The soft needle consists of a Luer head and a needle body connected to the Luer head.
5. The rapid chest drainage kit according to claim 1, characterized in that, The extension pin consists of a Luer adapter and an extension pin body connected to the Luer adapter. The Luer adapter has a structure with a male Luer connector on the outside and a female Luer connector on the inside.
6. The rapid chest drainage kit according to claim 4 or 5, characterized in that, The soft needle and the extension needle have several drainage holes on their bodies for drainage.
7. The rapid chest drainage kit according to claim 1, characterized in that, The drainage assembly consists of a connector, a drainage tube, and an insertion head connected in sequence. The main body of the connector is a Luer adapter. The lower end of the connector extends outward to form a hollow tubular connecting tube for connecting the drainage tube. The Luer adapter has a structure with a male Luer connector on the outside and a female Luer connector on the inside.
8. The rapid chest drainage kit according to claim 7, characterized in that, The insertion head is a hollow, pointed, rigid needle.
9. The rapid chest drainage kit according to claim 8, characterized in that, The vacuum bottle consists of a bottle body and a rubber stopper that seals the bottle opening.
10. The rapid chest drainage kit according to claim 9, characterized in that, The insert head is inserted into the vacuum bottle via a rubber stopper.
Citation Information
Patent Citations
Self-clamping type chest drainage bottle structure
CN221181157U