A simple air only chest tube

Abstract

An only exhaust air pneumothorax needle comprises a valve pipe, a guide pipe is arranged in the valve pipe, a guide pipe assembly is fixed with the valve pipe, a cavity is arranged in the guide pipe assembly and is in the same straight line with the guide pipe, a one-way valve is connected to the side wall of the valve pipe and communicates with the guide pipe to realize one-way exhaust, a puncture needle assembly is movably arranged in the cavity, is used to pierce the part to be exhausted when the puncture needle assembly passes through the guide pipe assembly, and can seal the end of the guide pipe when the puncture needle assembly is arranged in the cavity to realize only one-way valve exhaust. The present application has the advantages of compact and reasonable structure, convenient operation, realization of only exhaust function through arrangement of a sealing ring, an elastic film and special improvement of the puncture needle, avoidance of blockage of the exhaust hole by the accumulated liquid, realization of exhaust without pulling out the puncture needle, reduction of operation difficulty and risk of infection of the patient, and improvement of exhaust efficiency through various measures.

Description

Technical Field

[0001] This invention relates to the field of pneumothorax needle technology, and in particular to a pneumothorax needle that only releases air. Background Technology

[0002] In the field of pneumothorax treatment, traditional pneumothorax needles, as commonly used medical devices, can meet treatment needs to a certain extent, but in actual application, they have exposed a series of technical problems that urgently need to be solved.

[0003] Firstly, traditional pneumothorax needles are often designed to perform both air drainage and fluid drainage. However, in emergency situations, air drainage is usually the more pressing need. Due to structural limitations, traditional pneumothorax needles struggle to achieve a single, efficient air drainage function. Especially when dealing with pneumothorax primarily composed of gas, fluid accumulation can block the drainage port, significantly reducing drainage efficiency and impacting treatment outcomes. This lack of specificity in design makes it difficult for medical personnel to respond quickly and effectively to different patient conditions.

[0004] Secondly, traditional pneumothorax needle aspiration typically requires removing the puncture needle during the drainage process. This procedure not only increases the difficulty for medical personnel but also introduces potential safety hazards. When the needle is removed, a temporary, unprotected channel is created between the chest cavity and the outside world. If this channel is not sealed promptly and effectively, external air, bacteria, or other contaminants may enter the chest cavity, increasing the patient's risk of infection. Such infection can prolong treatment time, increase the patient's financial burden, adversely affect the patient's recovery process, and even lead to more serious complications such as empyema and atelectasis.

[0005] In summary, traditional pneumothorax needles have significant shortcomings in terms of air drainage function, efficiency, and safety. Therefore, there is an urgent need for a pneumothorax needle that can precisely control the amount of air drained, effectively prevent gas backflow, is easy to operate, and significantly reduce patient discomfort, in order to solve the aforementioned technical problems and improve the efficacy and safety of pneumothorax treatment. Summary of the Invention

[0006] In response to the shortcomings of the existing production technology, the applicant provides a venting-only bronchoscope, which, through the ingenious cooperation between the sealing part and the puncture needle assembly, enables the puncture needle to automatically seal the end of the air tube when retracted, effectively isolating it from the external environment and protecting the cleanliness and safety of the thoracic cavity.

[0007] The technical solution adopted in this invention is as follows:

[0008] A type of venting-only brooch, comprising:

[0009] Valve pipe, which contains an air guide pipe;

[0010] The catheter assembly is fixedly connected to the valve tube, and the catheter assembly has a cavity that is in the same straight line as the air delivery tube.

[0011] A one-way valve assembly is connected to the side wall of the valve tube and communicates with the air guide tube to achieve one-way exhaust.

[0012] The puncture needle assembly is movably inserted into the cavity. When the puncture needle assembly passes through the catheter assembly, it is used to puncture the area to be vented. When the puncture needle assembly is retracted into the cavity, it can seal the end of the air delivery tube, realizing one-way valve venting.

[0013] Furthermore, it also includes a sealing part, which is detachably connected to the through hole opened on the valve tube, and a channel communicating with the air guide tube is provided in the sealing part. The sealing part is made of flexible material and cooperates with the puncture needle assembly to seal the air guide tube. The diameter of the middle part of the channel in the sealing part is smaller than the diameter of the upper and lower openings of the channel, and the diameter of the upper and lower openings of the channel is smaller than the diameter of the puncture needle assembly.

[0014] Furthermore, the air guide tube is arranged along the axial direction of the valve tube and is open at both ends. A one-way valve hole communicating with the one-way valve assembly is provided on the side wall of the air guide tube, and a male connector is provided at the end of the valve tube away from the guide tube assembly.

[0015] Furthermore, the puncture needle assembly includes:

[0016] The puncture needle has a diameter that decreases from top to bottom, and a limiting protrusion that fits into the sealing part is fixed on the outer wall of the puncture needle.

[0017] The handle is connected to the non-pointed end of the puncture needle, and a female connector that mates with the male connector thread is provided on the handle.

[0018] Furthermore, the puncture needle has a needle hole inside, and multiple air vents on the same plane are provided on the side wall of the puncture needle.

[0019] Furthermore, the limiting protrusion is annular and has a circular cross-section. When the limiting protrusion engages with the channel of the sealing part, the air outlet and the one-way valve hole are on the same plane.

[0020] Furthermore, the catheter assembly includes an outer tube, one end of which is fixedly connected to the valve tube, and the other end of which is provided with a constricted opening that is close to the insertion part of the puncture needle.

[0021] Furthermore, the outer tube has multiple spirally distributed vent holes on its side wall, and scale lines are provided on the side wall of the outer tube.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention features a compact and reasonable structure, and is easy to operate. By arranging a sealing ring, an elastic membrane, and making special improvements to the puncture needle, it achieves the function of venting only, avoiding the blockage of the vent hole by accumulated fluid. At the same time, venting can be achieved without removing the puncture needle, reducing the difficulty of operation and the risk of patient infection. In addition, various measures have been taken to improve the venting efficiency.

[0024] In addition, the present invention also has the following advantages:

[0025] 1. This invention, by employing an elastic membrane to seal the outer cannula after the puncture needle is withdrawn, prevents fluid from entering the outer cannula. Combined with a one-way valve, this allows for more efficient and precise air drainage in cases of pneumothorax primarily composed of gas, improving treatment effectiveness and safety. The air drainage design also prevents fluid accumulation from clogging the air vent, ensuring unobstructed airflow and further enhancing drainage efficiency.

[0026] 2. The pneumothorax needle of the present invention, through the ingenious cooperation between the puncture needle assembly and the catheter assembly, allows for air venting without removing the puncture needle. Specifically, by unscrewing the handle and pulling the puncture needle assembly outward a certain distance, the limiting protrusion engages with the sealing part, thereby sealing the end of the air tube. Gas in the pleural cavity can then enter the air tube and be expelled through the needle hole inside the puncture needle and the vent hole on the side wall. This design not only simplifies the operation process and reduces the difficulty for medical personnel, but also greatly improves the safety of treatment, avoiding the risk of infection caused by removing the puncture needle.

[0027] 3. In this embodiment, the pneumothorax needle with only venting function further improves venting efficiency through a series of ingenious designs. Multiple spirally distributed venting holes on the outer sheath and venting holes on the puncture needle further increase the venting channels and efficiency. The diameter of the puncture needle decreases from top to bottom, and multiple venting holes are provided on the puncture needle. These designs enable the pneumothorax needle with only venting function of this invention to quickly and effectively expel gas from the pleural cavity during the venting process, reducing the patient's pain and discomfort. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is an exploded view of the present invention.

[0030] Figure 3 This is a structural diagram of the puncture needle assembly in this invention.

[0031] Figure 4 This is a structural diagram of the pneumothorax needle in its actual working state according to the present invention.

[0032] Wherein: 100, valve tube; 101, air guide tube; 102, one-way valve port; 103, male connector;

[0033] 200. Conduit assembly; 201. Outer tube; 202. Insertion part; 203. Vent hole; 204. Elastic membrane;

[0034] 300. Puncture needle assembly; 301. Puncture needle; 302. Handle; 303. Limiting protrusion; 304. Vent hole;

[0035] 400. Sealing part; 401. Elastic retaining ring;

[0036] 500. One-way valve assembly. Detailed Implementation

[0037] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0038] Reference Figures 1-4 As shown, the technical solution of the present invention provides a pneumatic thoracic needle that only vents air. Its structure is ingeniously designed and aims to provide a medical device that can accurately control the amount of air vented, effectively prevent gas backflow, is easy to operate, and can significantly reduce patient pain.

[0039] like Figures 1-4 As shown, specifically, the air-expelling thoracic needle of the present invention mainly consists of five parts: a valve tube 100, a catheter assembly 200, a puncture needle assembly 300, a sealing part 400, and a one-way valve assembly 500. The valve tube 100, as the main body of the entire device, has an internal air guide tube 101 that extends axially along the valve tube 100, with open ends to facilitate gas flow. The catheter assembly 200 is tightly fixed to the valve tube 100, and its internal cavity is aligned with the air guide tube 101, ensuring smooth gas flow. The one-way valve assembly 500 is installed on the side wall of the valve tube 100 and connected to the air guide tube 101, enabling one-way gas expulsion and effectively preventing backflow of external gas. The puncture needle assembly 300 is movably inserted into the cavity of the catheter assembly 200 for inserting into the patient's thoracic cavity to perform air expulsion. The sealing part 400 is detachably connected to the valve tube 100 and is used to close the end of the air tube 101 when the puncture needle assembly 300 is retracted.

[0040] The specifics will be explained in detail below with reference to the accompanying diagram.

[0041] like Figures 1-3As shown, in this embodiment, the valve tube 100 serves as the main body and core component of the entire device. Inside, a carefully designed air guide tube 101 extends axially along the valve tube 100, with open ends to facilitate smooth gas flow. Simultaneously, the outer surface of the valve tube 100 features an anti-slip texture. This design not only increases stability when held by medical personnel but also significantly reduces the risk of accidents caused by slippage, reflecting a human-centered design philosophy.

[0042] In this embodiment, the catheter assembly 200 is tightly fixed to the valve tube 100, ensuring airtightness between them. The internal cavity of the catheter assembly 200 is aligned with the air delivery tube 101, a design that not only simplifies the gas flow path but also significantly improves exhaust efficiency. The length and diameter of the catheter assembly 200 also need to be precisely calculated based on actual needs to ensure that it meets exhaust requirements without imposing additional burden on the patient.

[0043] In this embodiment, the one-way valve assembly 500, as a key component for one-way gas discharge, is installed on the side wall of the valve tube 100 and tightly connected to the air guide tube 101. It only allows gas to be discharged from the pleural cavity, while preventing external gas from flowing back. The design principle of the one-way valve assembly 500 is based on the pressure difference principle. When the gas pressure inside the pleural cavity is greater than the external pressure, the valve core is automatically pushed open, allowing gas to pass through; conversely, when the external pressure is greater than the pressure inside the pleural cavity, the valve core closes tightly, preventing gas backflow. This design not only ensures the accuracy of gas discharge but also greatly improves the safety of treatment, avoiding complications caused by gas backflow.

[0044] In this embodiment, the puncture needle assembly 300 is movably inserted into the cavity of the catheter assembly 200 for puncturing the patient's chest cavity to perform air drainage. The puncture needle 301 is made of medical-grade stainless steel, with a smooth and sharp surface to reduce resistance during puncture and alleviate patient discomfort. The diameter of the puncture needle 301 gradually decreases from top to bottom. This design not only minimizes tissue damage when the puncture needle enters the patient's chest cavity but also increases the gas flow space and improves air drainage efficiency when the puncture needle 301 is retracted into the catheter assembly 200. Furthermore, the non-pointed end of the puncture needle 301 is connected to a handle 302, which is ergonomically designed for easy gripping and operation by medical personnel.

[0045] In this embodiment, the sealing part 400 is detachably connected to the valve tube 100. Specifically, a through hole is provided in the valve tube 100, and then the sealing part 400 is fixed in the through hole to seal the end of the air guide tube 101 when the puncture needle assembly 300 is retracted. This ensures the sealing of the end of the air guide tube 101 and facilitates the insertion and removal of the puncture needle assembly 300. The sealing part 400 has a channel for docking with the air guide tube 101. Since the sealing part 400 is detachable, the inside of the air guide tube 101 can be disinfected through the through hole after the sealing part 400 is pulled out.

[0046] In this embodiment, the sealing part 400 is made of a soft material with good sealing properties, such as silicone. This material not only has good elasticity but also can tightly conform to the inner wall of the puncture needle 301 and the air guide tube 101, ensuring a sealing effect. Simultaneously, the diameter of the middle part of the channel of the sealing part 400 is smaller than the diameter of the upper and lower openings of the channel, and the diameters of both the upper and lower openings are smaller than the diameter of the puncture needle 301. This design allows the limiting protrusion 303 to engage with the channel of the sealing part 400 when the puncture needle assembly 300 is retracted into the cavity, achieving a tight seal on the end of the air guide tube 101. When the puncture needle assembly 300 is protruding, it can easily pass through the channel of the sealing part 400 without causing any damage.

[0047] In another embodiment, such as Figure 3 As shown, a needle hole is cleverly designed inside the puncture needle 301. This design not only allows the puncture needle to directly guide gas out when it enters the pleural cavity, but also increases the air exhaust channel. Simultaneously, multiple air outlets 304, arranged in a ring on the same plane, are carefully designed on the side wall of the puncture needle 301. These air outlets remain connected to the air delivery tube 101 even when the puncture needle 301 is retracted into the catheter assembly 200, further improving the air exhaust effect. By reasonably controlling the size and number of air outlets, the irritation and damage to the patient's pleural cavity can be minimized while ensuring effective air exhaust. Furthermore, when the limiting protrusion 303 engages with the channel of the sealing part 400, the air outlets 304 and the one-way valve hole 102 are precisely on the same plane. This design allows gas to exit the pleural cavity more smoothly, improving the overall air exhaust efficiency of the device.

[0048] like Figure 2As shown, the catheter assembly 200 in this embodiment consists of an outer cannula 201 and several auxiliary components. The outer cannula 201 is made of a transparent or semi-transparent material, a design that allows medical personnel to clearly observe the puncture process and ensures the accuracy of the operation. One end of the outer cannula 201 is tightly fixed to the valve tube 100, ensuring that gas will not leak from the connection. The other end is designed with a tapered shape and is close to the insertion part 202 of the puncture needle 301. This design not only reduces resistance during puncture but also prevents external contaminants from entering. In addition, the side wall of the outer cannula 201 is provided with multiple spirally distributed vent holes 203, which can assist in venting during puncture and improve venting efficiency. Another set of vent holes corresponds to one of the vent holes 203. When the puncture needle 301 is pulled out and engages with the sealing part 400, the vent hole set connects with the corresponding vent hole 203. The air in the chest cavity is discharged through the gap between the outer tube 201 and the puncture needle 301, and can also be discharged through the two sets of vent holes on the puncture needle 301, thereby improving the efficiency of air discharge.

[0049] Meanwhile, the outer tube 201 is also engraved with clear scale lines, which medical personnel can use to accurately determine the insertion depth of the puncture needle 301, avoid puncturing the patient's organs, and ensure the accuracy of the treatment.

[0050] To further enhance the performance of the catheter assembly 200, this embodiment also includes an elastic membrane 204 connected to the inner wall of the outer sheath 201. The elastic membrane 204 has a pre-tightened end in the middle. This design allows for easy insertion of the puncture needle 301 and ensures rapid closure of the end after needle withdrawal, preventing fluid from entering the outer sheath 201 and affecting air venting efficiency. The elastic membrane 204 needs to possess good elasticity and abrasion resistance to ensure stable performance during long-term use. Furthermore, the pre-tightening force of the elastic membrane 204 needs to be precisely calculated to ensure both smooth insertion of the puncture needle 301 and rapid closure of the end after needle withdrawal, preventing significant fluid infiltration. A small amount of fluid accumulation does not affect the overall air venting efficiency.

[0051] like Figures 1-2As shown, to further improve the sealing effect, an elastic retaining ring 401 is fitted on the outside of the sealing part 400 in this embodiment. The elastic retaining ring 401 can push the sealing part 400 towards the channel, making the sealing part 400 fit more tightly against the inner wall of the puncture needle 301 and the air guide tube 101, ensuring the sealing effect. At the same time, the sealing part 400 can be easily removed by removing the elastic retaining ring 401. The elastic retaining ring 401 must ensure that it can provide sufficient compressive force without damaging the sealing part 400 or the puncture needle 301. In addition, the installation position of the elastic retaining ring 401 also needs to be precisely controlled to ensure that it can achieve the best sealing effect.

[0052] In another embodiment, the one-way valve assembly 500 may also be equipped with a gas flow rate sensor, an exhaust whistle, etc., to determine the exhaust status by the flow rate and exhaust sound, so that medical personnel can observe the exhaust status of the one-way valve assembly 500 to determine the progress of gas expulsion from the pleural cavity and the amount of remaining gas, thereby controlling the treatment process more precisely.

[0053] In this embodiment, the specific working method is as follows: Figure 4 As shown, it includes the following steps:

[0054] When using the pneumothorax needle of the present invention, medical personnel first select and install a suitable puncture needle assembly 300 according to the patient's specific condition. By rotating the female connector on the handle 302 to engage with the male connector 103 at the end of the valve tube 100, a quick and secure connection between the puncture needle assembly 300 and the valve tube 100 is achieved.

[0055] Next, align the entire device with the patient's chest cavity. After confirming that it is in the correct position, push the handle 302 forcefully to allow the puncture needle 301 to pass through the channel between the outer tube 201 and the sealing part 400 and pierce into the patient's chest cavity. During this process, medical personnel can accurately determine the insertion depth of the puncture needle 301 through the scale lines on the outer tube 201, thus enabling the pneumothorax needle to penetrate the tissue layers and insert into the air-filled layer. Simultaneously, because the diameter of the puncture needle 301 gradually decreases from top to bottom, damage to the tissues is gradually reduced when it pierces the patient's chest cavity.

[0056] Next, the handle 302 is unscrewed, and the puncture needle assembly 300 is pulled outwards, causing the limiting protrusion 303 to engage with the sealing part 400, thereby sealing the end of the air tube 101. This design not only ensures the sealing of the end of the air tube 101 but also allows medical personnel to flexibly adjust the position of the puncture needle 301 according to actual needs. Furthermore, because the sealing part 400 is made of a flexible material, it will not cause damage to the puncture needle 301 or the air tube 101 during the engagement process.

[0057] At this time, under the action of intrathoracic pressure, the gas in the thoracic cavity will pass through the vent hole 203 on the outer tube 201 and the needle hole and vent hole 304 in the puncture needle 301, and the accumulated gas will be discharged in one direction through the one-way valve hole 102. Under the action of the one-way valve assembly 500, the gas will be discharged in one direction.

[0058] After treatment, medical personnel can easily detach the puncture needle assembly 300 from the valve tube 100 by simply rotating the female connector on the handle 302. Then, by routine cleaning and disinfection of the outer cannula 201 and the valve tube 100, it is ready for the next use. This detachable and easy-to-clean design not only improves the reusability of the device but also reduces medical costs, aligning with the concept of sustainable development in modern medicine.

[0059] In conclusion, the pneumothorax needle of this invention, with its unique design, sophisticated craftsmanship, and superior performance, demonstrates immense potential and broad application prospects in the field of pneumothorax treatment. It not only provides medical personnel with a safer, more effective, and convenient treatment tool but also brings patients a more comfortable and precise treatment experience. With continuous technological advancements and wider application, it is believed that the pneumothorax needle of this invention will play an even more important role in future medical practice.

[0060] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A brooch that only releases air, characterized in that, include: Valve tube (100), which contains an air guide tube (101); The catheter assembly (200) is fixedly connected to the valve tube (100), and the catheter assembly (200) has a cavity that is on the same straight line as the air tube (101); A one-way valve assembly (500) is connected to the side wall of the valve tube (100) and communicates with the air guide tube (101) to achieve one-way exhaust; A puncture needle assembly (300) includes a puncture needle that is movably inserted into a cavity and used to puncture the site to be vented; as well as, A sealing part (400) is detachably connected to the valve tube (100), and after the puncture needle assembly (300) is pulled out to a certain extent, the sealing part (400) cooperates with the puncture needle assembly (300) to seal the end of the air tube (101).

2. A brooch for venting only air as described in claim 1, characterized in that: The sealing part (400) is connected to the through hole opened on the valve pipe (100), and a channel communicating with the air guide pipe (101) is provided in the sealing part (400). The sealing part (400) is made of flexible material.

3. A brooch for venting only air as described in claim 1, characterized in that: The air guide tube (101) is arranged along the axial direction of the valve tube (100) and is open at both ends. A one-way valve hole (102) communicating with the one-way valve assembly (500) is provided on the side wall of the air guide tube (101), and a male connector (103) is provided at the end of the valve tube (100) away from the conduit assembly (200).

4. A brooch for venting only as described in claim 1, characterized in that: The puncture needle assembly (300) includes: The puncture needle (301) has a diameter that decreases from top to bottom, and a limiting protrusion (303) that fits against the sealing part (400) is fixed on the outer side wall of the puncture needle (301). The handle (302) is connected to the non-pointed end of the puncture needle (301), and a female connector that is threadedly engaged with the male connector (103) is provided on the handle (302).

5. A brooch for venting only air as described in claim 4, characterized in that: The puncture needle (301) has a needle hole inside, and at least two sets of air outlet groups are provided on the side wall of the puncture needle (301), and each air outlet group has multiple air outlets (304) on the same plane.

6. A brooch for venting only as described in claim 5, characterized in that: The limiting protrusion (303) is annular and has a circular cross-section. When the limiting protrusion (303) is engaged in the channel of the sealing part (400), one of the air outlet holes is on the same plane as the one-way valve hole (102).

7. A brooch for venting only as described in any one of claims 4-6, characterized in that: The catheter assembly (200) includes an outer tube (201), one end of which is fixedly connected to the valve tube (100), and the other end of which is provided with a tapered insertion part (202) close to the puncture needle (301).

8. A brooch for venting only as described in claim 7, characterized in that: The outer tube (201) has a plurality of spirally distributed exhaust holes (203) on its side wall, and scale lines are provided on the side wall of the outer tube (201). Another group of exhaust holes is on the same plane as one of the exhaust holes (203).

9. A brooch for venting only air as described in claim 7, characterized in that: An elastic membrane (204) is connected to the inner wall of the outer sleeve (201), and a pre-tightened opening is provided in the middle to facilitate the insertion of the puncture needle (301) and to close the opening when the puncture needle (301) is pulled out.

10. A brooch for venting only as described in claim 2, characterized in that: The diameter of the middle part of the channel in the sealing part (400) is smaller than the diameter of the upper and lower openings of the channel, and the diameter of the upper and lower openings of the channel is smaller than the diameter of the puncture needle assembly (300). An elastic retaining ring (401) is sleeved on the outside of the sealing part (400) to drive the sealing part (400) to be squeezed into the channel.

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