A percutaneous puncture chest cavity tube closed drainage device

Abstract

The utility model discloses a kind of percutaneous puncture thoracic cavity catheterization closed drainage device, including chest wall and puncture point, the inside of chest wall is provided with puncture point, the puncture point penetrates chest wall, the outside of puncture point is provided with puncture needle outer sheath, spherical soft support is movably installed in the inside of puncture needle outer sheath, the top of puncture needle outer sheath is provided with variable-diameter locking structure. The utility model not only realizes the convenient real-time observation depth to puncture position is punctured, and is fixed support, improve the convenience of thoracic cavity catheterization closed drainage device puncture, improve the security when using, and realize the convenient thoracic cavity catheterization closed drainage device to the gas / effusion of chest cavity, improve the convenience of thoracic cavity catheterization closed drainage device when using, greatly avoid the negative pressure in drainage tube direct action on lung and pleura, reduce the damage to tissue.

Description

Technical Field

[0001] This utility model relates to the technical field of closed drainage devices for chest tube placement, specifically a percutaneous thoracic tube placement closed drainage device. Background Technology

[0002] The principle of closed chest drainage is mainly to insert a drainage tube into the chest cavity to drain effusion or gas, thereby restoring normal pressure and function within the chest cavity. The site of the procedure is disinfected, draped with a sterile drape, and then local anesthesia is administered. After successful anesthesia, the doctor inserts a thin drainage tube into the chest cavity, usually through the chest wall. One end of the tube is placed at the location of the effusion or gas, while the other end is connected to a negative pressure drainage system, typically a closed container. By establishing negative pressure, the drainage system helps to remove effusion or gas from the chest cavity.

[0003] As disclosed in the authorization announcement number CN221949899U, a closed thoracic drainage tube placement device includes a puncture needle for performing thoracentesis and, after puncture, the needle can aspirate gas or fluid to determine whether the desired drainage site has been reached. The dilation tube is used to dilate subcutaneous tissue and muscle to initially form a tube placement tunnel. A perforated dilation forceps is used to further dilate subcutaneous tissue and parietal pleura to form a final tube placement tunnel. A chest tube and a stylet are also included. The chest tube is a flexible tube, and the stylet can be bent and shaped. After the stylet is inserted into the chest tube, the chest tube can enter the drainage site along the final tube placement tunnel in the shape shaped by the stylet.

[0004] Although it allows for the aspiration of gas or liquid from the puncture site via a pre-set puncture needle, enabling quick confirmation of the correct puncture site before proceeding to the next step, the pre-set perforated dilator body, combined with the dilator tube and guidewire, can quickly and accurately form a catheter insertion tunnel. The pre-set flexible chest tube, combined with a malleable stylet, allows for rapid insertion of the chest tube according to the shape of the insertion tunnel. Moreover, the insertion process has low risk, and the entire operation is simple, minimally invasive, quick, and safe, with a short learning curve, making it easy for ICU doctors to master.

[0005] However, the existing closed chest tube drainage devices do not address the challenges of convenient real-time observation of puncture depth, accurate puncture site selection, and proper fixation during use. This hinders the ease of puncture, compromises safety, and impedes the efficient drainage of pleural effusion. Furthermore, the negative pressure within the drainage tube may directly affect the lungs and pleura, potentially causing tissue damage and significantly impacting the overall convenience and safety of use. This results in considerable inconvenience for users. Utility Model Content

[0006] The purpose of this invention is to provide a percutaneous closed thoracic drainage device to address the problems mentioned in the background art, such as the inconvenience of real-time observation of the puncture depth for puncture and fixation, which affects the convenience of puncture and safety during use; the difficulty in conveniently draining pleural effusion; and the potential for negative pressure within the drainage tube to directly affect the lungs and pleura, causing tissue damage.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a percutaneous thoracic catheterization closed drainage device, comprising a chest wall and a puncture point. The puncture point is disposed inside the chest wall and penetrates the chest wall. A puncture needle sheath is disposed outside the puncture point. A spherical soft support is movably installed inside the puncture needle sheath. A diameter-changing locking structure is disposed at the top of the puncture needle sheath. A battery and a wireless transmitter are disposed at the top of the diameter-changing locking structure. A visual puncture needle core is installed at the bottom of the battery and the wireless transmitter. A miniature camera is installed at the bottom of the visual puncture needle core. A transparent needle tip is installed at the bottom of the miniature camera.

[0008] Preferably, the variable diameter locking structure has an inner sleeve installed inside, the inner core of the visible puncture needle is slidably connected to the inner sleeve and the outer sheath of the puncture needle, and an outer sleeve is installed outside the inner sleeve.

[0009] Preferably, the inner sheath is connected to the outer sheath of the puncture needle, and the inner core of the visible puncture needle penetrates the inner sheath and extends to the bottom end of the outer sheath of the puncture needle.

[0010] Preferably, the inner cannula is provided with a non-destructive drainage tube, and the bottom end of the non-destructive drainage tube penetrates the outer sheath of the puncture needle and extends into the chest wall.

[0011] Preferably, the top end of the non-destructive drainage tube extends to the outside of the inner sleeve, and a first one-way valve is installed inside the top end of the non-destructive drainage tube.

[0012] Preferably, a converter is installed on the top sidewall of the non-destructive drainage tube, and a negative pressure elastic drainage ball is installed on the side of the converter away from the non-destructive drainage tube.

[0013] Preferably, the negative pressure elastic drainage ball is provided with a control panel on its exterior, and a second one-way valve is installed at the end of the negative pressure elastic drainage ball near the converter.

[0014] Preferably, a third one-way valve is installed at the end of the negative pressure elastic drainage ball away from the converter, and multiple sets of drainage holes with equal spacing are provided on the bottom side wall of the non-destructive drainage tube. The output end of the control panel is electrically connected to the input ends of the miniature camera, battery and wireless transmitter, first one-way valve, second one-way valve and third one-way valve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the closed chest tube drainage device not only enables convenient real-time observation of the puncture depth for puncture and fixation support, improving the convenience of puncture and safety during use, but also enables convenient drainage of pleural effusion, improving the convenience of use and largely avoiding the negative pressure in the drainage tube directly acting on the lungs and pleura, thus reducing tissue damage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the outer sheath of the puncture needle of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the outer sleeve of this utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner core of the visual puncture needle of this utility model;

[0020] Figure 5 This is a front view cross-sectional structural diagram of the negative pressure elastic drainage ball of this utility model;

[0021] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Chest wall; 2. Puncture point; 3. Spherical soft support; 4. Puncture needle outer sheath; 5. Outer cannula; 6. Inner cannula; 7. Variable diameter locking structure; 8. Transparent needle tip; 9. Visual puncture needle core; 10. Miniature camera; 11. Battery and wireless transmitter; 12. Non-destructive drainage tube; 13. Negative pressure elastic drainage ball; 14. Control panel; 15. First one-way valve; 16. Second one-way valve; 17. Third one-way valve; 18. Drainage hole; 19. Converter. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Please see Figure 1-6 An embodiment of this utility model provides a percutaneous thoracic catheter closed drainage device, including a chest wall 1 and a puncture point 2. The puncture point 2 is provided inside the chest wall 1 and penetrates the chest wall 1. A puncture needle sheath 4 is provided outside the puncture point 2. A spherical soft support 3 is movably installed inside the puncture needle sheath 4. A diameter-changing locking structure 7 is provided at the top of the puncture needle sheath 4. A battery and wireless transmitter 11 are provided at the top of the diameter-changing locking structure 7. A visible puncture needle core 9 is installed at the bottom of the battery and wireless transmitter 11. A miniature camera 10 is installed at the bottom of the visible puncture needle core 9. A front transparent needle tip 8 is installed at the bottom of the miniature camera 10.

[0025] When using a percutaneous thoracic catheter closed drainage device, after a comprehensive assessment of the patient's chest wall 1, a suitable puncture point 2 is selected. The inner core 9 of the visual puncture needle is inserted into the outer sheath 4 of the puncture needle through the diameter-changing locking structure 7. The inner core 9 of the visual puncture needle, along with the miniature camera 10 and the front transparent needle tip 8, will be pressed against the bottom opening of the outer sheath 4. After pushing the inner core 9 of the visual puncture needle forward, the spherical soft support 3 at the bottom of the outer sheath 4 can be straightened. At the same time, when the outer sheath 5 is slightly rotated backward, the diameter of the inner sheath 6 will decrease, firmly wrapping and fixing the inner core 9 of the visual puncture needle. The inner core 9 of the visible puncture needle, the diameter-changing locking structure 7, and the outer sheath 4 of the puncture needle are fixed in place. The puncture point 2 is locally disinfected and infiltration anesthetized. The thoracentesis is performed using the outer sheath 4 with the straightened needle attached, carrying the inner core 9 of the visible puncture needle. A miniature camera 10 observes the surroundings of the front transparent needle tip 8 in real time during the puncture process and transmits the data to the control panel 14 in a timely manner. This allows the doctor to accurately judge the depth of insertion and avoid adverse consequences caused by punctures that are too shallow or too deep. After the front transparent needle tip 8 reaches the pleural cavity, the outer sheath 5 is slightly rotated forward. The diameter of the cannula 6 will increase. Loosen the wrapping of the inner core 9 of the visual puncture needle and pull out the inner core 9 of the visual puncture needle. After the straightened outer sheath 4 loses the support of external force, the front end retracts, so that the spherical soft support 3 returns to its expanded shape. The expanded end can fix the bottom end of the outer sheath 4 of the puncture needle in the chest cavity, which facilitates convenient puncture at the puncture site. It enables convenient real-time observation of the depth of puncture at the puncture site and provides fixation support, which improves the convenience of puncture of the closed drainage device for chest tube placement and improves the safety during use.

[0026] The inner sleeve 6 is installed inside the variable diameter locking structure 7. The inner core 9 of the visible puncture needle is slidably connected to the inner sleeve 6 and the outer sheath 4 of the puncture needle. The outer sleeve 5 is installed outside the inner sleeve 6.

[0027] The inner cannula 6 is connected to the outer sheath 4 of the puncture needle. The inner core 9 of the visible puncture needle passes through the inner cannula 6 and extends to the bottom end of the outer sheath 4 of the puncture needle. The inner cannula 6 is provided with a non-destructive drainage tube 12, and the bottom end of the non-destructive drainage tube 12 passes through the outer sheath 4 of the puncture needle and extends to the inside of the chest wall 1.

[0028] The top end of the non-destructive drainage tube 12 extends to the outside of the inner sleeve 6. A first one-way valve 15 is installed inside the top end of the non-destructive drainage tube 12. A converter 19 is installed on the top side wall of the non-destructive drainage tube 12. A negative pressure elastic drainage ball 13 is installed on the side of the converter 19 away from the non-destructive drainage tube 12.

[0029] The negative pressure elastic drainage ball 13 is equipped with a control panel 14. A second one-way valve 16 is installed at the end of the negative pressure elastic drainage ball 13 near the converter 19, and a third one-way valve 17 is installed at the end of the negative pressure elastic drainage ball 13 away from the converter 19. Multiple sets of drainage holes 18 with equal spacing are provided on the bottom side wall of the non-destructive drainage tube 12. The output end of the control panel 14 is electrically connected to the input ends of the miniature camera 10, the battery and wireless transmitter 11, the first one-way valve 15, the second one-way valve 16, and the third one-way valve 17.

[0030] The non-invasive drainage tube 12 is inserted into the outer sheath 4 of the puncture needle through the reducing and locking structure 7 to a suitable depth. The outer sheath 5 is rotated backward, and the diameter of the inner sheath 6 will decrease, firmly wrapping and fixing the non-invasive drainage tube 12, thus fixing the non-invasive drainage tube 12, the reducing and locking structure 7, and the outer sheath 4 of the puncture needle together. Since there is a first one-way valve 15 at the top of the non-invasive drainage tube 12, the drainage components in the non-invasive drainage tube 12 can only flow from the bottom to the top of the drainage tube. The second one-way valve 16 and the third one-way valve 17 on both sides of the negative pressure elastic drainage ball 13 can only flow from the left end to the right end of the drainage ball. When the second one-way valve 16 is opened, the third one-way valve 17 is open, and the gas / liquid inside the negative pressure elastic drainage ball 13 is discharged through the third one-way valve 17. As the negative pressure elastic drainage ball 13 loses its squeezing force, it returns to its original shape, and a negative pressure is formed inside. At this time, the second one-way valve 16 is open and the third one-way valve 17 is closed. The negative pressure of the negative pressure elastic drainage ball 13 acts on the pleural cavity through the non-destructive drainage tube 12. Repeatedly squeezing the first one-way valve 15, the second one-way valve 16, and the third one-way valve 17 can drain the accumulated gas / fluid in the pleural cavity. The multiple drainage holes 18 in the groove at the bottom of the non-destructive drainage tube 12 can prevent the negative pressure in the drainage tube from directly acting on the lungs and pleura, reducing damage to the above tissues. This realizes the convenient drainage of accumulated gas / fluid in the pleural cavity using the closed pleural drainage device, improves the convenience of using the closed pleural drainage device, and largely avoids the negative pressure in the drainage tube from directly acting on the lungs and pleura, reducing damage to the tissues.

[0031] Working principle: When using the percutaneous thoracic catheter closed drainage device, after a comprehensive assessment of the patient's chest wall 1, a suitable puncture point 2 is selected. The inner core 9 of the visual puncture needle is inserted into the outer sheath 4 of the puncture needle through the diameter-changing locking structure 7. The inner core 9 of the visual puncture needle, along with the miniature camera 10 and the front transparent needle tip 8, will be pressed against the bottom opening of the outer sheath 4. After pushing the inner core 9 of the visual puncture needle forward, the spherical soft support 3 at the bottom of the outer sheath 4 can be straightened. At the same time, when the outer sheath 5 is rotated slightly backward, the diameter of the inner sheath 6 will decrease, which will firmly wrap and fix the inner core 9 of the visual puncture needle. The inner core 9 of the visual puncture needle, the diameter-changing locking structure 7, and the outer sheath 4 of the puncture needle are fixed. The puncture point 2 is locally disinfected and anesthetized with infiltration anesthesia. Thoracentesis is performed using the outer sheath 4 with the straightened needle attached, carrying the inner core 9 of the visual puncture needle. The micro camera 10 observes the surroundings of the front transparent needle tip 8 in real time during the puncture process and transmits the data to the control panel 14 in a timely manner. This allows the doctor to accurately judge the depth of insertion and avoid adverse consequences caused by punctures that are too shallow or too deep. After the front transparent needle tip 8 reaches the pleural cavity, the outer cannula 5 is slightly rotated forward, which increases the diameter of the inner cannula 6. The inner core 9 of the visual puncture needle is then loosened and pulled out backward. After the straightened outer sheath 4 loses external support, the front end retracts, allowing the spherical soft support 3 to return to its expanded state. The shape of the tube, with its enlarged end, allows the bottom of the outer sheath 4 of the puncture needle to be fixed inside the thoracic cavity, facilitating convenient puncture at the puncture site. The non-invasive drainage tube 12 is inserted into the outer sheath 4 of the puncture needle through the reducing diameter locking structure 7 to a suitable depth. The outer sheath 5 is rotated backward, causing the diameter of the inner sheath 6 to decrease, thus firmly wrapping and fixing the non-invasive drainage tube 12, the reducing diameter locking structure 7, and the outer sheath 4 of the puncture needle together. Because the top of the non-invasive drainage tube 12 has a first one-way valve 15, the drainage components in the non-invasive drainage tube 12 can only flow from the bottom to the top of the drainage tube. The second one-way valve 16 and the third one-way valve 17 on both sides of the negative pressure elastic drainage ball 13 allow the drainage components in the negative pressure elastic drainage ball 13 to flow only from the left end to the right end of the drainage ball. When the second one-way valve 16 is opened, the third one-way valve 17 is open, and the gas / liquid inside the negative pressure elastic drainage ball 13 is discharged through the third one-way valve 17. As the negative pressure elastic drainage ball 13 loses its squeezing force, it returns to its original shape, and a negative pressure is formed inside. At this time, the second one-way valve 16 is open and the third one-way valve 17 is closed. The negative pressure of the negative pressure elastic drainage ball 13 acts on the pleural cavity through the non-destructive drainage tube 12. Repeatedly squeezing the first one-way valve 15, the second one-way valve 16, and the third one-way valve 17 can drain the accumulated gas / fluid in the pleural cavity. The multiple drainage holes 18 in the groove at the bottom of the non-destructive drainage tube 12 can prevent the negative pressure in the drainage tube from directly acting on the lungs and pleura, reducing damage to the above tissues, thus completing the use of the closed pleural drainage device.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A percutaneous thoracic puncture tube closed drainage device, characterized in that: The device includes a chest wall (1) and a puncture point (2). The puncture point (2) is located inside the chest wall (1) and penetrates the chest wall (1). A puncture needle sheath (4) is located outside the puncture point (2). A spherical soft support (3) is movably installed inside the puncture needle sheath (4). A variable diameter locking structure (7) is located at the top of the puncture needle sheath (4). A battery and a wireless transmitter (11) are located at the top of the variable diameter locking structure (7). A visible puncture needle core (9) is installed at the bottom of the battery and the wireless transmitter (11). A miniature camera (10) is installed at the bottom of the visible puncture needle core (9). A front transparent needle tip (8) is installed at the bottom of the miniature camera (10).

2. The percutaneous thoracic catheter closed drainage device according to claim 1, characterized in that: The variable diameter locking structure (7) has an inner sleeve (6) installed inside. The inner core (9) of the visible puncture needle is slidably connected to the inner sleeve (6) and the outer sheath (4) of the puncture needle. An outer sleeve (5) is installed outside the inner sleeve (6).

3. The percutaneous thoracic catheter closed drainage device according to claim 2, characterized in that: The inner sheath (6) is connected to the outer sheath (4) of the puncture needle, and the inner core (9) of the visible puncture needle extends through the inner sheath (6) and the outer sheath (4) to the bottom end of the outer sheath (4).

4. The percutaneous thoracic catheter closed drainage device according to claim 2, characterized in that: The inner cannula (6) is provided with a non-destructive drainage tube (12), and the bottom end of the non-destructive drainage tube (12) extends through the outer sheath (4) of the puncture needle and the chest wall (1) to the inside of the chest wall (1).

5. The closed drainage device for percutaneous chest tube according to claim 4, wherein: The top end of the non-destructive drainage tube (12) extends to the outside of the inner sleeve (6), and a first one-way valve (15) is installed inside the top end of the non-destructive drainage tube (12).

6. The closed drainage device for percutaneous chest tube according to claim 4, wherein: A converter (19) is installed on the top side wall of the non-destructive drainage tube (12), and a negative pressure elastic drainage ball (13) is installed on the side of the converter (19) away from the non-destructive drainage tube (12).

7. A percutaneous thoracic catheter-based closed drainage device according to claim 6, characterized in that: The negative pressure elastic drainage ball (13) is provided with a control panel (14) on its exterior, and a second one-way valve (16) is installed on the end of the negative pressure elastic drainage ball (13) near the converter (19).

8. A percutaneous thoracic catheter-based closed drainage device according to claim 7, characterized in that: The negative pressure elastic drainage ball (13) is equipped with a third one-way valve (17) at the end away from the converter (19). The bottom side wall of the non-destructive drainage tube (12) is provided with multiple sets of drainage holes (18) at equal intervals. The output end of the control panel (14) is electrically connected to the input end of the miniature camera (10), battery and wireless transmitter (11), first one-way valve (15), second one-way valve (16), and third one-way valve (17).

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