Rapid puncture type closed thoracic drainage device

Abstract

The utility model discloses a fast puncture type thoracic cavity closed drainage device which comprises a main hose, a built-in hard tube and a closed drainage bag, a conical section is arranged at the front end of the main hose, the front end of the conical section is open, a blunt round head is arranged at the front end of the built-in hard tube, and the outer end of the blunt round head is closed. A drainage hole is formed in the side wall of the front end of the blunt round head extending out of the outer side of the opening of the conical section. The conical section is provided with a plurality of first side holes, and the blunt round head is provided with a plurality of second side holes in one-to-one correspondence with the first side holes. The built-in hard tube is hollow, the head of the built-in hard tube is blunt and round, the built-in hard tube is provided with a drainage hole, gas and liquid drained through the drainage hole can be pre-judged to enter the pleural cavity safely, the built-in sleeve is withdrawn and the main hose is pushed to enter the pleural cavity after puncture succeeds, damage to internal thoracic organs is effectively avoided, the safety of puncture operation is effectively improved, the main hose is of a pen point type design, and the safety of puncture operation is improved. And after puncturing into the pleural cavity, the built-in cannula is withdrawn to finish the catheter indwelling operation, so that the catheter indwelling operation time is shortened.

Description

Technical Field

[0001] This utility model relates to a rapid puncture closed thoracic drainage device, belonging to the field of medical device technology. Background Technology

[0002] Closed thoracic drainage typically involves incising the chest wall, inserting a drainage tube, and then connecting it to a closed thoracic drainage bottle via an extension tube to form a complete closed thoracic drainage system that can simultaneously and continuously drain air and fluid. However, conventional drainage tube placement is cumbersome, and the tube may dissolve and damage thoracic organs, potentially causing blockages. Furthermore, various closed thoracic drainage bottles are not easily portable and are unsuitable for wartime needs. In battlefield emergency care, rapid and effective drainage is required. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rapid puncture closed thoracic drainage tube that can quickly and effectively perform thoracic puncture operations on the battlefield.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A rapid puncture-type closed thoracic drainage device includes a main tubing, an internal rigid tube fitted inside the main tubing, and a closed drainage bag for connecting to the main tubing, the closed drainage bag being used to store fluid drained from the thoracic cavity.

[0006] The main flexible tube has a tapered section at its front end, and the tapered section is open at its front end; the front end of the built-in rigid tube has a blunt round head that matches the tapered section of the main flexible tube, and the outer end of the blunt round head is closed; the front end of the blunt round head extends out of the outside of the opening of the tapered section, and a drainage hole is provided on the side wall of the portion of the blunt round head that extends out of the opening of the tapered section.

[0007] The tapered section of the main flexible tube is provided with several first side holes, the interior of the built-in rigid tube is provided with a drainage channel along the axial direction, and the blunt round head is provided with several second side holes that correspond one-to-one with the first side holes; the drainage holes and the second side holes are connected to the drainage channel.

[0008] Furthermore, when the built-in rigid tube and the main flexible tube are combined, the length of the blunt rounded end extending out of the opening of the tapered section is one centimeter; after the built-in rigid tube and the main flexible tube are separated, the tapered section is in a curved state, which is a pig tail design, and the first side hole is located on the inner curved side of the tapered section.

[0009] Furthermore, a fixing seat is installed at the rear end of the main hose, and a fixing slot is provided on the rear end of the fixing seat. A positioning block that cooperates with the fixing slot is installed at the rear end of the built-in rigid tube.

[0010] Furthermore, the closed drainage bag includes a drainage bag body and a drainage extension tube. The front end of the drainage extension tube is fitted with a threaded sleeve, and the front end of the drainage extension tube is provided with a locking block that cooperates with the fixing slot. The outer wall of the fixing seat is provided with an external thread that cooperates with the threaded sleeve.

[0011] Furthermore, the top of the drainage bag body is provided with a Heimlich check valve, and the rear end of the drainage extension tube is connected to the inlet end of the Heimlich check valve; the drainage bag body is provided with a collection pipe, the upper end of the collection pipe is connected to the outlet end of the Heimlich check valve, the lower end of the collection pipe is located at the bottom of the drainage bag, and several drainage side holes are provided on the side wall of the lower end of the collection pipe.

[0012] Furthermore, the top of the drainage bag body is provided with an exhaust pipe, and an exhaust switch is installed on the exhaust pipe; the bottom of the drainage bag body is provided with a drain pipe, and a drain switch is installed on the drain pipe.

[0013] Furthermore, a tube fixing device is installed on the main tube to fix the main tube to the chest wall puncture point.

[0014] Furthermore, the diameter of the main hose is 6mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model features a hollow, internal rigid tube with a blunt, rounded front end and a drainage hole. Gas and liquid can be drained through the drainage hole, allowing for safe entry into the pleural cavity. After successful puncture, the internal cannula is withdrawn while the main flexible tube is pushed into the pleural cavity, effectively avoiding damage to intrathoracic organs and significantly improving the safety of the puncture operation. The main flexible tube has a pen-tip design, facilitating rapid puncture and catheter placement. Once the pleural cavity is punctured, the internal cannula can be withdrawn to complete the catheter placement operation, significantly shortening the procedure time.

[0017] 2. The main tube has a pigtail design with a side hole at the front end, which can effectively reduce the tube blockage rate. The puncture insertion method and the tension of the main tube itself make it fit tightly against the chest wall wound, effectively maintaining the airtightness of the chest cavity and effectively reducing complications.

[0018] 3. The main tubing is a medium-diameter (18Fr) soft drainage tube, which has a significantly better air and fluid drainage effect than the existing thoracentesis needle.

[0019] 4. The fixing seat installed at the end of the main hose can be matched with the positioning block of the built-in rigid tube and the threaded sleeve of the drainage extension tube to achieve quick connection and strong practicality.

[0020] 5. A Heimlich check valve is installed at the connection between the liquid collection pipe and the top of the drainage bag body, which allows gas and liquid to enter the drainage bag body in one direction and prevents gas and liquid backflow. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the combined internal rigid tube and main flexible tube in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the main hose in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the built-in rigid tube in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the closed drainage bag in an embodiment of the present invention;

[0025] Among them, 1. Built-in rigid tube; 2. Main flexible tube; 3. Drainage bag body; 4. Drainage extension tube; 11. Drainage hole; 12. Blunt round head; 13. Positioning block; 14. Second side hole; 21. Conical section; 22. Fixing seat; 23. Fixing slot; 24. First side hole; 31. Liquid collection pipe; 32. Drainage side hole; 41. Threaded sleeve. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1 to 4 As shown, this utility model relates to a rapid puncture-type closed thoracic drainage device, including a main hose 2, an internal rigid tube 1 sleeved inside the main hose 2, and a closed drainage bag for connecting to the main hose 2. The closed drainage bag is used to store the fluid drained from the thoracic cavity.

[0028] The main flexible tube 2 has a tapered section 21 at its front end, with an open front end. The inner diameter of the tapered section 21 gradually increases from the front opening to the rear. The front end of the built-in rigid tube 1 has a blunt round head 12 that mates with the tapered section 21 of the main flexible tube 2. The blunt round head 12 extends one centimeter beyond the opening of the tapered section 21, and its outer end is closed. A drainage hole 11 is provided on the side wall of the portion of the blunt round head 12 extending beyond the opening of the tapered section 21.

[0029] Furthermore, the tapered section 21 of the main flexible tube 2 is provided with a plurality of first side holes 24, the internal rigid tube 1 is provided with a drainage channel along the axial direction, and the blunt round head 12 is provided with a plurality of second side holes 14 corresponding one-to-one with the first side holes 24. The drainage holes 11 and the second side holes 14 communicate with the drainage channel, and the drainage holes 11, the first side holes 24 and the second side holes 14 are all used to drain the fluid inside the pleural cavity into the closed drainage bag.

[0030] Furthermore, such as Figure 1 As shown, in this embodiment, when the built-in rigid tube 1 and the main flexible tube 2 are combined (i.e., the built-in rigid tube 1 is completely inserted into the main flexible tube 2), the blunt rounded end 12 of the built-in rigid tube 1 extends one centimeter beyond the opening end of the tapered section 21 of the main flexible tube 2, and a drainage hole 11 is provided on the side wall of the part of the blunt rounded end 12 extending beyond the opening of the tapered section 21. The first side hole 24 opened on the tapered section 21 of the main flexible tube 2 and the second side hole 14 opened on the blunt rounded end 12 of the built-in rigid tube 1 are correspondingly set one-to-one. Figure 2 As shown, after the built-in rigid tube 1 is separated from the main flexible tube 2 (i.e., the built-in rigid tube 1 is withdrawn from the main flexible tube 2), the conical section 21 of the main flexible tube 2 is in a bent state, which is a pig tail design. The bent conical section 21 fits against the inner wall of the thoracic cavity, which can effectively reduce damage to the internal organs of the thoracic cavity. At the same time, the first side hole 24 is located on the inner curved side, which is not easy to be blocked.

[0031] Furthermore, a fixing seat 22 is installed at the rear end of the main hose 2, and a fixing slot 23 is provided at the rear end of the fixing seat 22. A positioning block 13 that cooperates with the fixing slot 23 is installed at the rear end of the built-in rigid tube 1.

[0032] Furthermore, such as Figure 4 As shown, the closed drainage bag includes a drainage bag body 3 and a drainage extension tube 4. The front end of the drainage extension tube 4 is fitted with a threaded sleeve 41, and the front end of the drainage extension tube 4 is provided with a locking block that cooperates with the fixing slot 23. The outer wall of the fixing seat 22 is provided with an external thread that cooperates with the threaded sleeve 41.

[0033] The top of the drainage bag body 3 is equipped with a Heimlich check valve, and the rear end of the drainage extension tube 4 is connected to the liquid inlet of the Heimlich check valve. A liquid collection pipe 31 is provided inside the drainage bag body 3. The upper end of the liquid collection pipe 31 is connected to the liquid outlet of the Heimlich check valve, and the lower end of the liquid collection pipe 31 is located at the bottom of the drainage bag. Several drainage side holes 32 are provided on the side wall of the lower end of the liquid collection pipe 31 for discharging liquid and gas. The bottom of the drainage bag body 3 is pre-filled with liquid that mates with the drainage side holes 32.

[0034] Furthermore, the top of the drainage bag body 3 is provided with an exhaust pipe, and an exhaust switch is installed on the exhaust pipe. The bottom of the drainage bag body 3 is provided with a drain pipe, and a drain switch is installed on the drain pipe.

[0035] Furthermore, the main flexible tube 2 is equipped with a tube fixing device, which can be quickly and easily fixed to the chest wall puncture point.

[0036] Specifically, in this embodiment, the built-in rigid tube 1 is an alloy sheath with a hollow design and a blunt, rounded tip. The blunt, rounded tip 12 of the alloy sheath is 5 cm long and has no opening at the tip. The blunt, rounded tip 12 has a drainage hole 11 and two second side holes 14 sequentially formed from front to back. When the built-in rigid tube 1 and the main flexible tube 2 are combined, the drainage hole 11 is naturally exposed, and the two second side holes 14 correspond one-to-one with the two first side holes 24. Gas and liquid drained through the drainage hole 11 can be safely introduced into the pleural cavity. After successful puncture, the built-in rigid tube 1 is withdrawn while the main flexible tube 2 is pushed into the pleural cavity, further avoiding potential damage to intrathoracic organs and ensuring the safety of the catheter placement procedure.

[0037] The tapered section 21 of the main flexible tube 2 is approximately 4 cm long and features a pen-tip design. The tube diameter gradually narrows from back to front, forming a pig-tail shape. The tip of the tapered section 21 of the main flexible tube 2 opens naturally, and two first side holes 24 are located near the opening on the inner curved side of the tapered section 21, corresponding to two second side holes 14 on the blunt rounded end 12 of the built-in rigid tube 1. A length scale is present on the wall of the main flexible tube 2. The rear end of the main flexible tube 2 is equipped with a threaded fixing seat 22 made of rigid material, which can be closely connected to the front end of the drainage extension tube 4. The fixing groove 23 on the threaded fixing seat 22 cooperates with the positioning block 13 of the built-in rigid tube 1, ensuring a tight connection between the built-in rigid tube 1 and the main flexible tube 2.

[0038] Specifically, in this embodiment, the length of the main flexible tube and the built-in rigid tube combined is 22cm. The outer diameter of the main flexible tube is a medium-coarse (18Fr) conduit with a diameter of 6mm. The main flexible tube and the built-in rigid tube are tightly fitted together.

[0039] The collection pipe 31 is located inside the drainage bag body 3. The lower end of the collection pipe 31 is fixed to the bottom of the drainage bag body 3. Two drainage side holes 32 are provided on the side wall of the lower end of the collection pipe 31 to facilitate the discharge of drained liquid and gas. A Heimlich one-way valve is provided at the connection between the collection pipe 31 and the top of the drainage bag body 3, which allows gas and liquid to enter the drainage bag body 3 in one direction. The drainage extension tube 4 is approximately 100 cm long. A threaded sleeve 41 and a locking block are installed at the front end of the drainage extension tube 4. After the locking block is engaged with the fixing seat 22 at the rear end of the main hose 2, the threaded sleeve 41 is rotated to fix it, thus tightly connecting the main hose 2 and the drainage extension tube 4.

[0040] The top of the drainage bag body 3 is equipped with an exhaust pipe, and the part of the exhaust pipe located outside the drainage bag body 3 is equipped with an exhaust switch. When the exhaust switch is closed, the exhaust pipe can be sealed, and it can be opened when in use. The bottom of the drainage bag body 3 is also equipped with a drain pipe. When it is necessary to drain excess liquid, the drain switch is opened to drain the liquid, and the drain switch is closed to seal the drainage bag body 3.

[0041] In addition, the main body 3 of the drainage bag is pre-filled with about 200ml of liquid. When the main body 3 of the drainage bag is in a vertical position, the gravity of the liquid can be used to seal the drain side hole 32 at the bottom of the collection pipe 31, which together plays the same "water seal" role as the closed chest drainage bottle, so that the entire main body 3 of the drainage bag can simultaneously and continuously release air and drain liquid. A liquid level scale is provided on the outer wall of the main body 3 of the drainage bag, and a handle is provided on the top of the main body 3 of the drainage bag.

Claims

1. A rapid puncture-type closed thoracic drainage device, characterized in that: Includes a main hose (2), an internal rigid tube (1) fitted inside the main hose (2), and a closed drainage bag for connecting to the main hose (2), the closed drainage bag being used to store fluid drained from the pleural cavity; The main hose (2) has a tapered section (21) at its front end, and the tapered section (21) is open at its front end; the front end of the built-in rigid tube (1) has a blunt round head (12) that matches the tapered section (21) of the main hose (2), and the outer end of the blunt round head (12) is closed; the front end of the blunt round head (12) extends out of the outside of the opening of the tapered section (21), and a drainage hole (11) is opened on the side wall of the portion of the blunt round head (12) that extends out of the outside of the opening of the tapered section (21); The tapered section (21) of the main flexible tube (2) is provided with a number of first side holes (24), the interior of the built-in rigid tube (1) is provided with a drainage channel along the axial direction, and the blunt round head (12) is provided with a number of second side holes (14) corresponding one-to-one with the first side holes (24); the drainage hole (11) and the second side hole (14) are connected to the drainage channel.

2. The rapid puncture closed thoracic drainage device as described in claim 1, characterized in that: When the built-in rigid tube (1) and the main flexible tube (2) are combined, the length of the front end of the blunt round head (12) extending out of the opening of the conical section (21) is one centimeter; after the built-in rigid tube (1) and the main flexible tube (2) are separated, the conical section (21) is in a bent state, which is a pig tail design, and the first side hole (24) is located on the inner curved side of the conical section (21).

3. The rapid puncture closed thoracic drainage device as described in claim 1 or 2, characterized in that: The rear end of the main hose (2) is equipped with a fixing seat (22), and a fixing slot (23) is provided on the rear end of the fixing seat (22). The rear end of the built-in hard tube (1) is equipped with a positioning block (13) that cooperates with the fixing slot (23).

4. The rapid puncture closed thoracic drainage device as described in claim 3, characterized in that: The closed drainage bag includes a drainage bag body (3) and a drainage extension tube (4). The front end of the drainage extension tube (4) is fitted with a threaded sleeve (41), and the front end of the drainage extension tube (4) is provided with a locking block that cooperates with the fixing slot (23). The outer wall of the fixing seat (22) is provided with an external thread that cooperates with the threaded sleeve.

5. The rapid puncture closed thoracic drainage device as described in claim 4, characterized in that: The top of the drainage bag body (3) is provided with a Heimlich check valve, and the rear end of the drainage extension tube (4) is connected to the inlet end of the Heimlich check valve; the drainage bag body (3) is provided with a collection pipe (31), the upper end of the collection pipe (31) is connected to the outlet end of the Heimlich check valve, the lower end of the collection pipe (31) is located at the bottom of the drainage bag, and a number of drainage side holes (32) are provided on the side wall of the lower end of the collection pipe (31).

6. The rapid puncture closed thoracic drainage device as described in claim 4 or 5, characterized in that: The top of the drainage bag body (3) is also provided with an exhaust pipe, and an exhaust switch is installed on the exhaust pipe; the bottom of the drainage bag body (3) is provided with a drain pipe, and a drain switch is installed on the drain pipe.

7. The rapid puncture closed thoracic drainage device as described in claim 6, characterized in that: The main tube (2) is equipped with a tube fixing device for fixing the main tube (2) to the chest wall puncture point.

8. The rapid puncture closed thoracic drainage device as described in claim 4 or 5, characterized in that: The diameter of the main hose (2) is 6 mm.

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