A thoracic closed drainage puncture auxiliary device

CN224370320UActive Publication Date: 2026-06-19XIANGAN HOSPITAL AFFILIATED TO XIAMEN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGAN HOSPITAL AFFILIATED TO XIAMEN UNIV
Filing Date
2025-04-11
Publication Date
2026-06-19

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Abstract

The utility model provides a kind of thoracic cavity closed drainage puncture auxiliary device, it is related to thoracic cavity closed drainage field.The thoracic cavity closed drainage puncture auxiliary device, including drainage catheter, the outside of drainage catheter is equipped with auxiliary mechanism, the auxiliary mechanism includes support air bag and support rod, the surface of support air bag is provided with pull mechanism, the pull mechanism includes pull ring and fixed block, the top of support air bag is provided with gas delivery mechanism, the gas delivery mechanism includes communication air pipe and connector.The thoracic cavity closed drainage puncture auxiliary device, by support rod, support air bag is supported and fixed, it is convenient to put support air bag into patient thoracic cavity, by connector and syringe are connected together, air is transported to support air bag through communication air pipe, make support air bag expand and support, make support air bag support open into annular, support thoracic cavity opening position, reduce the difficulty of drainage catheter puncture, improve thoracic cavity closed drainage puncture efficiency.
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Description

Technical Field

[0001] This utility model relates to a closed chest drainage auxiliary device, specifically a closed chest drainage puncture auxiliary device, belonging to the field of closed chest drainage technology. Background Technology

[0002] Closed chest drainage involves inserting one end of a drainage tube into the pleural cavity, while the other end is connected to a water-seal bottle positioned lower down. This allows for the drainage of air or collection of fluid from the pleural cavity, enabling the lung tissue to reopen and restore function. It is widely used as a treatment method for hemothorax, pneumothorax, and empyema, as well as post-thoracotomy procedures, playing a vital role in the treatment of these diseases.

[0003] One method of closed chest drainage involves making an incision in the intercostal space, using an instrument to open the space with one hand, and then inserting the drainage tube while holding it with the other. This method of insertion is laborious, especially for patients who are very large, making the insertion procedure quite difficult. To address this issue, we have developed an auxiliary device for closed chest drainage puncture to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for closed thoracic drainage puncture in order to solve the above-mentioned problems, thereby addressing the difficulty of drainage catheterization in the prior art.

[0005] This utility model is achieved through the following technical solution: a closed thoracic drainage puncture auxiliary device.

[0006] The device includes a drainage tube, and an auxiliary mechanism is sleeved on the outside of the drainage tube. The auxiliary mechanism includes a support airbag and a support rod. A pulling mechanism is provided on the surface of the support airbag. The pulling mechanism includes a pulling ring and a fixing block, and the fixing block is fixedly connected to the support airbag. An air delivery mechanism is provided at the top of the support airbag. The air delivery mechanism includes a connecting air tube and a connector, and the two ends of the connecting air tube are fixedly connected to the support airbag and the connector, respectively.

[0007] Preferably, a connecting hose is fixedly connected to the surface of the support rod, and a telescopic strap is fixedly connected to the surface of the connecting hose. The telescopic strap is fixedly connected to the support airbag. The telescopic strap supports and fixes both ends of the connecting hose, and the connecting hose positions the support rod, thereby improving the support effect of the support rod on the support airbag.

[0008] Preferably, a connecting rope is fixedly connected to the surface of the pull ring, and the other end of the connecting rope is fixedly connected to the fixing block. The pull ring drives the connecting rope to move upward, causing the fixing block to move the support airbag and extract the support airbag.

[0009] Preferably, the bottom of the pull ring is fixedly connected to an easy-tear strip, and the bottom of the easy-tear strip is fixedly connected to the support airbag. The pull ring is fixed to the surface of the support airbag by the easy-tear strip, and the pull ring can be easily removed from the surface of the support airbag by the easy-tear strip, thereby improving the stability of the device.

[0010] Preferably, a pusher is slidably connected inside the connector, and a sealing plate is fixedly connected to one end of the pusher. The surface of the sealing plate abuts against the connector. The pusher facilitates the squeezing of the sealing plate, moving it away from the vent hole in the middle of the connector, so that the syringe can easily deliver air into the air tube.

[0011] Preferably, a telescopic spring is fixedly connected to the surface of the sealing plate, and the other end of the telescopic spring is fixedly connected to the connector. The telescopic spring provides a thrust to the sealing plate, so that the sealing plate and the connector are tightly pressed together, thereby sealing the connector.

[0012] Preferably, a rubber ring is fixedly connected inside the connector, and the rubber ring is adapted to the syringe nozzle. The syringe nozzle is clamped by the rubber ring, and the syringe nozzle is connected to the connector.

[0013] This utility model provides an auxiliary device for closed thoracic drainage puncture, which has the following beneficial effects:

[0014] 1. This closed thoracic drainage puncture auxiliary device uses a support rod to support and fix the support balloon, making it easier for medical staff to place the support balloon into the patient's thoracic cavity opening. By inflating the support balloon, it expands into a ring shape, widening the opening and reducing the difficulty of drainage catheter puncture, thus improving the efficiency of drainage catheter puncture. The support balloon is made of medical-grade silicone, which can seal the wound and effectively prevent wound infection. By pulling the ring and fixing block, the support balloon can be moved, making it easy to remove from the thoracic cavity, thus improving the efficiency of closed thoracic drainage puncture. It is connected to a syringe via a connector, and air is delivered to the support balloon through a connecting tube, causing the support balloon to expand and support itself.

[0015] 2. This closed thoracic drainage puncture auxiliary device uses a telescopic strap to support and fix both ends of the connecting hose. The connecting hose also positions the support rod, improving its support effect on the support cuff and facilitating cuff placement into the thoracic cavity. A fixing block secures the other end of the connecting rope to the support cuff. Pulling the ring moves the connecting rope upwards, causing the fixing block to move the support cuff, thus retrieving it and improving the cuff retrieval efficiency. An easy-tear strip secures the pull ring to the surface of the support cuff, and the easy-tear strip facilitates easy retrieval. The pull ring is removed from the surface of the support airbag to improve the stability of the device. The push frame facilitates the squeezing of the sealing plate, moving it away from the vent hole in the middle of the connector, allowing the syringe to easily deliver air into the connecting tube. The telescopic spring provides thrust to the sealing plate, ensuring it is tightly pressed against the connector, sealing the connector and preventing air backflow. This improves the device's sealing of the chest cavity opening, preventing outside air from entering the chest cavity. The rubber ring secures and clamps the syringe nozzle, connecting it to the connector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the auxiliary mechanism of this utility model;

[0018] Figure 3 This is a cross-sectional view of the gas delivery mechanism of this utility model;

[0019] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0020] [Explanation of Key Component Symbols]

[0021] 1. Drainage catheter;

[0022] 2. Auxiliary mechanisms; 201. Support airbag; 202. Telescopic belt; 203. Connecting hose; 204. Support rod;

[0023] 3. Pulling mechanism; 301. Pulling ring; 302. Fixing block; 303. Connecting rope; 304. Easy-tear strip;

[0024] 4. Gas delivery mechanism; 401. Connecting gas pipe; 402. Connector; 403. Rubber ring; 404. Push frame; 405. Sealing plate; 406. Telescopic spring. Detailed Implementation

[0025] This utility model provides an auxiliary device for closed thoracic drainage puncture.

[0026] Please see Figure 1 and Figure 2 The system includes a drainage catheter 1, with an auxiliary mechanism 2 fitted around its exterior. The auxiliary mechanism 2 includes a support balloon 201 and a support rod 204. The support balloon 201 is flat when not inflated. The support rod 204 can be made of a hard material such as rubber, which has a certain degree of elastic deformation and good support strength. The support balloon 201 is supported and fixed by the support rod 204, making it easier for medical staff to insert the support balloon 201 into the patient's chest cavity opening. By inflating the support balloon 201, it expands into a ring shape, widening the opening and reducing the difficulty of puncturing the drainage catheter 1, thus improving the puncture efficiency. Furthermore, the support balloon 201 is made of medical-grade silicone, which can seal the wound and effectively prevent wound infection.

[0027] A connecting hose 203 is fixedly connected to the surface of the support rod 204, and a telescopic strap 202 is fixedly connected to the surface of the connecting hose 203. The telescopic strap 202 is fixedly connected to the support airbag 201. The telescopic strap 202 can be made of silicone and has the required telescopic capacity. The telescopic strap 202 supports and fixes both ends of the connecting hose 203. The connecting hose 203 positions the support rod 204, improving the support effect of the support rod 204 on the support airbag 201 and improving the convenience of placing the support airbag 201 into the chest cavity.

[0028] Please see Figure 4 The surface of the support airbag 201 is provided with a pulling mechanism 3, which includes a pulling ring 301 and a fixing block 302. The fixing block 302 is fixedly connected to the support airbag 201. The support airbag 201 is moved by the pulling ring 301 and the fixing block 302, which facilitates the removal of the support airbag 201 from the chest cavity and improves the efficiency of closed chest drainage puncture.

[0029] A connecting rope 303 is fixedly connected to the surface of the pull ring 301, and the other end of the connecting rope 303 is fixedly connected to the fixing block 302. The pull ring 301 and the connecting rope 303 can be made of soft materials with tensile strength such as rubber or silicone. The other end of the connecting rope 303 is fixed to the support airbag 201 by the fixing block 302. The pull ring 301 drives the connecting rope 303 to move upward, which causes the fixing block 302 to drive the support airbag 201 to move, thereby extracting the support airbag 201 and improving the efficiency of the support airbag 201 retraction.

[0030] The bottom of the pull ring 301 is fixedly connected to an easy-tear strip 304, and the bottom of the easy-tear strip 304 is fixedly connected to the support airbag 201. The pull ring 301 is fixed to the surface of the support airbag 201 through the easy-tear strip 304, and the easy-tear strip 304 makes it easy to remove the pull ring 301 from the surface of the support airbag 201, thereby improving the stability of the device.

[0031] Please see Figure 3 The top of the support airbag 201 is provided with an air delivery mechanism 4. The air delivery mechanism 4 includes a connecting air tube 401 and a connector 402. The two ends of the connecting air tube 401 are fixedly connected to the support airbag 201 and the connector 402, respectively. The connector 402 is connected to the syringe. Air is delivered to the support airbag 201 through the connecting air tube 401, so that the support airbag 201 expands and supports itself.

[0032] The connector 402 is internally slidably connected to a pusher 404. One end of the pusher 404 is fixedly connected to a sealing plate 405, and the surface of the sealing plate 405 abuts against the connector 402. The pusher 404 facilitates the squeezing of the sealing plate 405, moving the sealing plate 405 away from the vent hole in the middle of the connector 402, so that the syringe can easily deliver air to the air tube 401.

[0033] A telescopic spring 406 is fixedly connected to the surface of the sealing plate 405, and the other end of the telescopic spring 406 is fixedly connected to the connector 402. The telescopic spring 406 provides a thrust to the sealing plate 405, so that the sealing plate 405 and the connector 402 are tightly pressed together, sealing the connector 402 and preventing air from flowing out. This improves the sealing of the chest cavity opening and prevents outside air from entering the chest cavity.

[0034] A rubber ring 403 is fixedly connected inside the connector 402, and the rubber ring 403 is adapted to the syringe nozzle. The rubber ring 403 fixes and clamps the syringe nozzle, connecting the syringe nozzle to the connector 402.

[0035] In use, this invention involves: first, making an incision in the patient's chest cavity; then, supporting the airbag 201 with the support rod 204; placing the airbag 201 inside the incision; inserting the syringe tube into the connector 402; connecting the syringe tube to the connector 402 using the rubber ring 403; and using the pusher 404 to compress the sealing plate 405 to open the connector 402. Air is then supplied to the connector 402 through the syringe, and injected into the airbag 201 through the connecting air tube 401, causing the airbag 201 to inflate into a ring shape. The syringe is then removed, and the sealing plate 405 is then closed by the telescopic spring 406. The push force is provided to make the sealing plate 405 and the connector 402 fit tightly together, sealing the connector 402 and sealing the opening of the chest cavity to prevent outside air from entering the chest cavity, making it easier for medical staff to puncture the drainage catheter 1. After the puncture and drainage are completed, the pull ring 301 is moved outward to break the tear strip 304. Then, the syringe is inserted into the connector 402 to extract the air from the support balloon 201. The support balloon 201 is pulled outward by the pull ring 301 and the connecting rope 303 to pull the support balloon 201 out of the patient's chest cavity, reducing the difficulty of puncturing the drainage catheter 1 and improving the puncture efficiency of the drainage catheter 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for assisting in the insertion of a chest drainage catheter (1), comprising a drainage catheter (1), characterized in that: An auxiliary mechanism (2) is sleeved on the outside of the drainage conduit (1). The auxiliary mechanism (2) includes a support airbag (201) and a support rod (204). A pulling mechanism (3) is provided on the surface of the support airbag (201). The pulling mechanism (3) includes a pulling ring (301) and a fixing block (302). The fixing block (302) is fixedly connected to the support airbag (201). An air delivery mechanism (4) is provided at the top of the support airbag (201). The air delivery mechanism (4) includes a connecting air tube (401) and a connector (402). The two ends of the connecting air tube (401) are fixedly connected to the support airbag (201) and the connector (402), respectively.

2. The auxiliary device for thoracic closed drainage puncture according to claim 1, characterized in that: A connecting hose (203) is fixedly connected to the surface of the support rod (204), and a telescopic belt (202) is fixedly connected to the surface of the connecting hose (203), and the telescopic belt (202) is fixedly connected to the support airbag (201).

3. The closed thoracic drainage puncture auxiliary device according to claim 1, characterized in that: The surface of the pull ring (301) is fixedly connected to a connecting rope (303), and the other end of the connecting rope (303) is fixedly connected to the fixing block (302).

4. The closed thoracic drainage puncture auxiliary device according to claim 1, characterized in that: The bottom of the pull ring (301) is fixedly connected to an easy-tear strip (304), and the bottom of the easy-tear strip (304) is fixedly connected to the support airbag (201).

5. The closed thoracic drainage puncture auxiliary device according to claim 1, characterized in that: The connector (402) is internally slidably connected to a pusher (404), and a sealing plate (405) is fixedly connected to one end of the pusher (404), with the surface of the sealing plate (405) abutting against the connector (402).

6. The closed thoracic drainage puncture auxiliary device according to claim 5, characterized in that: A telescopic spring (406) is fixedly connected to the surface of the sealing plate (405), and the other end of the telescopic spring (406) is fixedly connected to the connector (402).

7. The closed thoracic drainage puncture auxiliary device according to claim 1, characterized in that: A rubber ring (403) is fixedly connected inside the connector (402), and the rubber ring (403) is adapted to the syringe nozzle.