Controllable first-aid pneumothorax needle

Abstract

The invention belongs to the field of medical instruments and provides a controllable first-aid pneumothorax needle which comprises an exhaust pipe, a puncture needle tube is fixedly mounted at the bottom end of the exhaust pipe, a needle handle is mounted in the middle of the top end of the exhaust pipe, and the middle of the bottom end of the needle handle extends out of the puncture needle tube to be fixedly connected with a long needle tip. The sensing mechanism is used for judging whether the long needle point penetrates the pleural wall layer or not and comprises a fixed inner cavity, the fixed inner cavity is formed in the bottom of the long needle point, and the bottom end of the fixed inner cavity extends out of the long needle point and is symmetrically provided with air inlet pipe openings in a penetrating mode; through cooperation of the fixed inner cavity, the hollow ball, the pressure sensor and the induction lamp, when the long needle point penetrates through the pleural wall layer, air in the chest enters the fixed inner cavity through the air inlet pipe opening, the hollow ball is pushed to extrude the pressure sensor, the induction lamp is turned on, objective and accurate penetrating feedback is provided for operators, dependence on subjective'breakthrough 'is avoided, and the safety of the operators is improved. The misjudgment risk is reduced, and the first-aid accuracy is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically a controllable emergency pneumothorax needle. Background Technology

[0002] The emergency pneumothorax needle is a medical device used for the emergency treatment of tension pneumothorax. In wartime emergency care, it is mainly used to treat tension pneumothorax caused by penetrating chest trauma such as gunshot wounds and shrapnel wounds. When a wounded person experiences life-threatening symptoms such as severe respiratory distress, chest bulging on the affected side, and tracheal deviation, the existing emergency pneumothorax needle usually consists of a puncture needle, a needle handle, and a one-way valve. Emergency personnel can quickly puncture the needle at the second intercostal space along the midclavicular line on the affected side in emergency situations without imaging examinations to release high-pressure gas in the pleural cavity, alleviate respiratory and circulatory failure, and buy golden time for subsequent treatment. It is a key emergency rescue method for saving the lives of pneumothorax wounded on the battlefield.

[0003] Existing emergency pneumothorax needles are designed with "rapid puncture and degassing" as their core principle. Their structure is mostly a combination of a sharp puncture needle and a handle, and some are equipped with a one-way valve. However, their operation is highly dependent on the operator's experience. Non-professionals find it difficult to accurately control the insertion depth. In addition, patients' chest wall thickness varies, and the traditional fixed connection structure lacks a quantitative adjustment device, which may introduce some errors in puncture depth. Furthermore, judging whether the needle tip has penetrated the pleural parietal layer depends on subjective judgment. Affected by factors such as chest wall muscle tension and fat thickness, there may be problems with blurred tactile feedback. This can easily lead to treatment failure due to unsuccessful penetration or complications due to excessive depth, which can have a certain impact on the patient's health and reduce the overall efficiency of emergency pneumothorax needles. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a controllable emergency pneumothorax needle to solve the problem that existing emergency pneumothorax needles are not convenient for sensing the puncture depth during use.

[0005] A controllable emergency pneumothorax needle includes an exhaust tube, a puncture needle tube fixedly installed at the bottom end of the exhaust tube, a needle handle installed at the middle of the top end of the exhaust tube, a long needle tip fixedly connected to the middle of the bottom end of the needle handle to the outside of the puncture needle tube, and a sensing mechanism provided inside the needle handle and the long needle tip for determining whether the long needle tip has penetrated the pleural parietal layer.

[0006] The sensing mechanism includes a fixed inner cavity, which is opened at the bottom of the long needle tip. The bottom end of the fixed inner cavity extends to the outside of the long needle tip and is symmetrically connected to an air inlet. A hollow ball is movably placed at the top of the fixed inner cavity. A pressure sensor is provided at the top of the inner wall of the fixed inner cavity. An induction lamp is fixedly installed on the upper surface of the needle handle. The pressure sensor and the induction lamp are electrically connected.

[0007] The bottom of the exhaust pipe near the puncture site is also equipped with a fixing structure for fixing the exhaust pipe to the human body;

[0008] The exhaust pipe is also equipped with an air control component to prevent air from flowing back into the chest cavity from the outside of the exhaust pipe.

[0009] Preferably, the fixing structure includes a protective film, which is fixedly installed at the bottom edge of the exhaust pipe. Several bearing supports are fixedly connected to the bottom of the outer surface of the exhaust pipe. A fixed wing plate is rotatably installed inside the bearing supports. An elastic positioning band is fused to the upper edge of the fixed wing plate, and an adhesive tape is provided at the bottom edge of the elastic positioning band.

[0010] Preferably, the gas control assembly includes a fixed branch pipe, which is fixedly installed at the bottom of the inner wall of the exhaust pipe. A mounting part is provided at the bottom of one side of the inner wall of the exhaust pipe, and a plurality of rubber valves are fixedly attached to the outer surface of the mounting part.

[0011] Preferably, the protective film covers the outer surface of the exhaust pipe, a positioning groove is provided on the outer surface of the exhaust pipe near the edge of the protective film, and an elastic strap is fitted onto the outer surface of the protective film.

[0012] Preferably, a fixing groove is provided at the bottom of the outer surface of the needle handle, the bottom of the needle handle extends into the interior of the exhaust pipe, the opening at the top of the exhaust pipe is located inside the fixing groove, and the exhaust pipe and the needle handle are engaged with each other.

[0013] Preferably, the outer diameter of the long needle tip is smaller than the inner diameter of the puncture needle tube, the bottom end of the long needle tip passes through the puncture needle tube, and the puncture needle tube and the long needle tip are interlocked.

[0014] Preferably, one side of the inner wall of the elastic strap is located inside the positioning groove, and one end of the protective film is located between the positioning groove and the elastic strap, wherein the positioning groove and the elastic strap are engaged with each other.

[0015] Preferably, the rubber valve is located above the fixed branch tube, the bottom edge of the rubber valve overlaps the upper surface of the fixed branch tube, and a plurality of rubber valves are circumferentially arranged on the outer surface of the long needle tip.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention utilizes the combination of a fixed inner cavity, a hollow sphere, a pressure sensor, and an induction lamp in the sensing mechanism. When the long needle tip penetrates the pleural wall layer, the gas in the pleural cavity enters the fixed inner cavity through the air inlet, pushing the hollow sphere to squeeze the pressure sensor, causing the induction lamp to light up. This provides the operator with objective and accurate penetration feedback, avoiding reliance on subjective "breakthrough senses," reducing the risk of misjudgment, and improving the accuracy of emergency treatment.

[0018] 2. This invention applies a protective film to the chest skin, unfolds by rotating the fixed wing plate, and is fixed by elastic positioning straps and tape. At the same time, the elastic straps and positioning grooves reinforce the protective film, which can stably fix the exhaust pipe to the human chest, prevent the needle from shifting or falling off after puncture, and ensure continuous and effective exhaust. It is especially suitable for scenarios such as patient transport in combat emergency care.

[0019] 3. This invention connects the rubber valve in the gas control component to the fixed branch tube. When gas is expelled from the pleural cavity, the rubber valve can be pushed open. When external air attempts to flow back, the rubber valve is tightly fitted to the fixed branch tube by its own elasticity and gas pressure, effectively preventing air from flowing back into the pleural cavity, maintaining a normal pressure environment in the pleural cavity, and reducing the risk of infection and recurrence of the disease. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the needle handle and the long needle tip in this invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the fixed cavity in this invention;

[0023] Figure 4 This is a schematic diagram of the structure of the rubber valve in this invention;

[0024] Figure 5 This is a schematic diagram of the elastic strap structure in this invention;

[0025] Figure 6 This is a schematic diagram of the tape structure in this invention.

[0026] In the picture:

[0027] 1. Exhaust pipe; 2. Puncture needle tube; 3. Needle handle; 4. Long needle tip; 5. Fixed inner cavity; 6. Air inlet; 7. Hollow ball; 8. Pressure sensor; 9. Induction lamp; 10. Protective membrane; 11. Bearing support; 12. Fixed wing plate; 13. Elastic positioning band; 14. Adhesive tape; 15. Positioning groove; 16. Elastic strap; 17. Fixed branch tube; 18. Mounting part; 19. Rubber valve; 20. Fixed slot. Detailed Implementation

[0028] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0029] As attached Figure 1 To be continued Figure 3 As shown:

[0030] Example 1: This invention provides a controllable emergency pneumothorax needle, including an exhaust pipe 1, a puncture needle tube 2 fixedly installed at the bottom end of the exhaust pipe 1, a needle handle 3 installed at the middle of the top end of the exhaust pipe 1, a long needle tip 4 fixedly connected to the middle of the bottom end of the needle handle 3 to the outside of the puncture needle tube 2, a fixing groove 20 is opened at the bottom of the outer surface of the needle handle 3, the bottom of the needle handle 3 extends into the interior of the exhaust pipe 1, the opening at the top end of the exhaust pipe 1 is located inside the fixing groove 20, the exhaust pipe 1 and the needle handle 3 are engaged with each other, the outer diameter of the long needle tip 4 is smaller than the inner diameter of the puncture needle tube 2, the bottom end of the long needle tip 4 passes through the puncture needle tube 2, the puncture needle tube 2 and the long needle tip 4 are interlocked with each other, and a sensing mechanism is provided inside the needle handle 3 and the long needle tip 4 to determine whether the long needle tip 4 has penetrated the pleural parietal layer;

[0031] The sensing mechanism includes a fixed inner cavity 5, which is opened at the bottom of the long needle tip 4. The bottom end of the fixed inner cavity 5 extends to the outside of the long needle tip 4 and is symmetrically connected to an air inlet 6. A hollow ball 7 is movably placed at the top of the fixed inner cavity 5. A pressure sensor 8 is provided at the top of the inner wall of the fixed inner cavity 5. A sensor lamp 9 is fixedly installed on the upper surface of the needle handle 3. The pressure sensor 8 and the sensor lamp 9 are electrically connected.

[0032] The bottom of the exhaust pipe 1 near the puncture site is also equipped with a fixing structure for fixing the exhaust pipe 1 to the human body;

[0033] The exhaust pipe 1 is also equipped with an air control component to prevent air from flowing back into the chest cavity from the outside of the exhaust pipe 1.

[0034] As described above, when using the sensing mechanism, the operator first holds the needle handle 3 and aligns the puncture needle tube 2 and the long needle tip 4 with the second intercostal space along the midclavicular line on the affected side of the patient, preparing for puncture. Next, the operator pushes the needle handle 3, causing the long needle tip 4 and the puncture needle tube 2 to puncture into the chest wall tissue. During the needle insertion process, once the long needle tip 4 penetrates the parietal pleura and enters the pleural cavity, the gas in the pleural cavity enters the fixed inner cavity 5 through the air inlet 6. Then, the gas pushes the hollow ball 7 within the fixed inner cavity 5 upwards. The hollow ball 7 compresses the pressure sensor 8 at the top of the inner wall of the fixed inner cavity 5. The pressure sensor 8 transmits a signal to the sensor light 9, causing the sensor light 9 to illuminate. At this point, the operator can know that the long needle tip 4 has successfully penetrated the parietal pleura and can stop further needle insertion. This process, through the cooperation of the mechanical structure and sensing elements, achieves accurate and objective judgment of the penetration status, avoiding subjective misjudgment.

[0035] Example 2:

[0036] Reference Figure 5 and Figure 6The fixed structure includes a protective film 10, which is fixedly installed at the bottom edge of the exhaust pipe 1. Several bearing supports 11 are fixedly connected to the bottom of the outer surface of the exhaust pipe 1. A fixed wing plate 12 is rotatably installed inside the bearing support 11. An elastic positioning band 13 is welded to the edge of the upper surface of the fixed wing plate 12. An adhesive tape 14 is provided at the bottom edge of the elastic positioning band 13.

[0037] As can be seen from the above, when using a fixed structure to fix the exhaust pipe 1, firstly, after the puncture is completed, the staff applies the protective film 10 to the skin around the puncture point on the patient's chest. The protective film 10 provides initial protection and positioning for the puncture site. Next, the staff rotates the fixing wing plate 12, unfolding it from its position close to the exhaust pipe 1, and adjusts the unfolding angle of the fixing wing plate 12 according to the patient's chest condition. Then, the staff stretches the elastic positioning band 13, so that the adhesive tape 14 at the bottom of the elastic positioning band 13 is attached to the appropriate position on the patient's chest skin. Through the elastic tension of the elastic positioning band 13 and the adhesiveness of the adhesive tape 14, the fixing wing plate 12 is fixed, thereby stably fixing the exhaust pipe 1 to the patient's chest, preventing the puncture needle from shifting, and ensuring the stable progress of the subsequent exhaust process.

[0038] Reference Figure 2 , Figure 5 and Figure 6 The protective film 10 covers the outer surface of the exhaust pipe 1. A positioning groove 15 is provided on the outer surface of the exhaust pipe 1 near the edge of the protective film 10. An elastic strap 16 is sleeved on the outer surface of the protective film 10. One side of the inner wall of the elastic strap 16 is located inside the positioning groove 15. One end of the protective film 10 is located between the positioning groove 15 and the elastic strap 16. The positioning groove 15 and the elastic strap 16 are engaged with each other.

[0039] As shown above, when reinforcing the protective membrane 10, the worker first applies the protective membrane 10 to the patient's chest, then picks up the elastic bandage 16 and places it over the outer surface of the protective membrane 10. Next, the worker adjusts the position of the elastic bandage 16 so that one side of its inner wall is inserted into the positioning groove 15 on the outer surface of the exhaust pipe 1, while simultaneously positioning one end of the protective membrane 10 between the positioning groove 15 and the elastic bandage 16. Then, using the elastic contraction force of the elastic bandage 16, the protective membrane 10 is tightly fixed to the bottom of the exhaust pipe 1, further enhancing the fit and fixation effect between the protective membrane 10 and the patient's chest, preventing displacement or detachment of the protective membrane 10, and improving the overall stability of the fixation structure.

[0040] Example 3:

[0041] Reference Figure 1 and Figure 4The air control assembly includes a fixed branch pipe 17, which is fixedly installed at the bottom of the inner wall of the exhaust pipe 1. An installation part 18 is provided at the bottom of one side of the inner wall of the exhaust pipe 1. Several rubber valves 19 are fixedly attached to the outer surface of the installation part 18. The rubber valves 19 are located above the fixed branch pipe 17, and the bottom edge of the rubber valves 19 overlaps the upper surface of the fixed branch pipe 17. The multiple rubber valves 19 are arranged circumferentially on the outer surface of the long needle tip 4.

[0042] As shown above, during the pneumothorax control process, when air needs to be expelled from the pleural cavity, it enters the exhaust tube 1 through the long needle tip 4. The airflow impacts the rubber valve 19. Because the bottom edge of the rubber valve 19 overlaps the upper surface of the fixed branch tube 17, the gas pressure pushes open the rubber valve 19, allowing the gas to be expelled through the channel above the fixed branch tube 17 to the outside of the exhaust tube 1. Next, when external air attempts to flow back into the pleural cavity through the exhaust tube 1, the rubber valve 19, due to its own elasticity and the influence of external air pressure, will tightly adhere to the upper surface of the fixed branch tube 17, blocking the gas return channel. Thus, through this unidirectional flow method, air is effectively prevented from flowing back into the pleural cavity from outside the exhaust tube 1, ensuring stable intrapleural pressure, avoiding worsening of the condition due to gas reflux, and improving the safety of using the emergency pneumothorax needle.

[0043] Working principle: In scenarios such as battlefield first aid, when encountering a patient with tension pneumothorax, the staff first holds the needle handle 3, aligns the puncture needle tube 2 and the long needle tip 4 with the second intercostal space along the midclavicular line on the affected side, and pushes the needle handle 3 to perform puncture. During the puncture, the sensing mechanism plays a role. When the long needle tip 4 penetrates the parietal pleura, the gas in the pleural cavity enters the fixed inner cavity 5 through the air inlet 6, pushing the hollow bulb 7 to squeeze the pressure sensor 8, causing the sensor light 9 to light up, indicating that the puncture is in place;

[0044] Then, using the fixing structure, the protective film 10 is attached to the skin around the puncture point on the patient's chest, the fixing wing plate 12 is unfolded and fixed by the elastic positioning strap 13 and the tape 14, and then the protective film 10 is reinforced by the elastic strap 16 and the positioning groove 15, so that the exhaust pipe 1 is stably fixed on the chest.

[0045] During the deflation process, the gas in the thoracic cavity pushes open the rubber valve 19 of the air control component to be expelled, and the external air cannot flow back through the rubber valve 19, ensuring normal pressure in the thoracic cavity, buying time for the injured person to be transported for treatment, and completing the emergency rescue operation of the controllable emergency pneumothorax needle.

[0046] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A controllable emergency pneumothorax needle, comprising an exhaust pipe (1), wherein a puncture needle tube (2) is fixedly installed at the bottom end of the exhaust pipe (1), characterized in that: The exhaust pipe (1) has a needle handle (3) installed at the middle of the top end. The needle handle (3) extends to the outside of the puncture needle tube (2) and is fixed with a long needle tip (4). The needle handle (3) and the long needle tip (4) are equipped with a sensing mechanism to determine whether the long needle tip (4) penetrates the pleural wall layer. The sensing mechanism includes a fixed inner cavity (5), which is located at the bottom of the long needle tip (4). The bottom end of the fixed inner cavity (5) extends to the outside of the long needle tip (4) and is symmetrically connected to an air inlet (6). A hollow ball (7) is movably placed at the top of the fixed inner cavity (5). A pressure sensor (8) is provided at the top of the inner wall of the fixed inner cavity (5). An induction lamp (9) is fixedly installed on the upper surface of the needle handle (3). The pressure sensor (8) and the induction lamp (9) are electrically connected. The exhaust pipe (1) is also provided with a fixing structure at the bottom near the puncture site, which is used to fix the exhaust pipe (1) to the human body; The exhaust pipe (1) is also equipped with an air control component to prevent air from flowing back into the chest cavity from the outside of the exhaust pipe (1).

2. The controllable emergency pneumothorax needle as described in claim 1, characterized in that: The fixing structure includes a protective film (10), which is fixedly installed at the bottom edge of the exhaust pipe (1). Several bearing supports (11) are fixedly connected to the bottom of the outer surface of the exhaust pipe (1). A fixed wing plate (12) is rotatably installed inside the bearing support (11). An elastic positioning band (13) is welded to the edge of the upper surface of the fixed wing plate (12). An adhesive tape (14) is provided at the bottom edge of the elastic positioning band (13).

3. The controllable emergency pneumothorax needle as described in claim 1, characterized in that: The gas control assembly includes a fixed branch pipe (17), which is fixedly installed at the bottom of the inner wall of the exhaust pipe (1). An installation part (18) is provided at the bottom of one side of the inner wall of the exhaust pipe (1), and several rubber valves (19) are fixedly attached to the outer surface of the installation part (18).

4. The controllable emergency pneumothorax needle as described in claim 2, characterized in that: The protective film (10) covers the outer surface of the exhaust pipe (1). A positioning groove (15) is provided on the outer surface of the exhaust pipe (1) near the edge of the protective film (10). An elastic strap (16) is fitted onto the outer surface of the protective film (10).

5. The controllable emergency pneumothorax needle as described in claim 1, characterized in that: The needle handle (3) has a fixing groove (20) at the bottom of its outer surface. The bottom of the needle handle (3) extends into the exhaust pipe (1). The top opening of the exhaust pipe (1) is located inside the fixing groove (20). The exhaust pipe (1) and the needle handle (3) are engaged with each other.

6. The controllable emergency pneumothorax needle as described in claim 1, characterized in that: The outer diameter of the long needle tip (4) is smaller than the inner diameter of the puncture needle tube (2), and the bottom end of the long needle tip (4) passes through the puncture needle tube (2). The puncture needle tube (2) and the long needle tip (4) are interlocked.

7. The controllable emergency pneumothorax needle as described in claim 4, characterized in that: One side of the inner wall of the elastic strap (16) is located inside the positioning groove (15), and one end of the protective film (10) is located between the positioning groove (15) and the elastic strap (16). The positioning groove (15) and the elastic strap (16) are engaged with each other.

8. The controllable emergency pneumothorax needle as described in claim 3, characterized in that: The rubber valve (19) is located above the fixed branch tube (17), and the bottom edge of the rubber valve (19) overlaps the upper surface of the fixed branch tube (17). Multiple rubber valves (19) are arranged circumferentially on the outer surface of the long needle tip (4).

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