Portable thoracic cavity exhaust device

Abstract

The utility model discloses a portable thoracic cavity exhaust device which comprises a thoracic cavity tube, a three-way valve, a catheter, a speed control switch, a negative pressure assembly and a negative pressure drainage device, two valve ports of the three-way valve are connected to the end of the thoracic cavity tube and the end of the catheter respectively, and the other valve port of the three-way valve is provided with a protective cap used for sealing. The negative pressure assembly is arranged at the other end of the catheter and used for being connected with the negative pressure drainage device, and the speed adjusting switch is arranged on the catheter and used for adjusting the exhaust speed. The negative pressure drainage device is arranged to replace a traditional water bottle type device for exhausting, the whole device is convenient to carry and assemble, double protection of the negative pressure drainage device is achieved through the three-way valve and the speed regulating switch, the speed regulating switch is arranged, the exhausting speed of the negative pressure drainage device is controlled, and the negative pressure drainage device is convenient to use. Meanwhile, the negative-pressure drainage device is combined with the three-way valve and the speed control switch to realize repeated exhaust.

Description

Technical Field

[0001] This utility model belongs to the field of chest cavity ventilation technology, specifically relating to a portable chest cavity ventilation device. Background Technology

[0002] Currently, in my country, patients with lung lesions are prone to pneumothorax during lung biopsy to obtain pathological tissue. Existing techniques mostly use two methods to drain the air: one is to use a water-seal bottle device with closed chest drainage in thoracic surgery. These devices usually have thick tubes, which are uncomfortable for patients to wear and inconvenient to carry. They also require daily changes of sterile water and observation of the water column to ensure no leakage. The other method is to use a thoracic needle (puncture needle) to extract the air from the pleural cavity. However, this method can only drain air once and cannot be repeated.

[0003] Chinese patent application number 202022576386.4 discloses a controllable and convenient three-way chest cavity negative pressure suction device, comprising: a three-way connecting valve, which includes at least a first port, a second port, and a third port; a drainage tube, one end of which is detachably connected to the first port, and the other end of which is left in the chest cavity; a drainage bottle, which is detachably connected to the second port; and a negative pressure suction ball, which is detachably connected to the third port; wherein the first port and the second port are arranged opposite to each other, and the third port is located between the first port and the second port, forming a "T"-shaped connecting valve that communicates with the first port and the second port. The connecting valve has a rotatable valve core that can selectively open the port. This technical solution can only achieve the opening and closing of a single airway through the negative pressure suction device, and cannot achieve repeated air drainage and lacks protection. Utility Model Content

[0004] The purpose of this utility model is to provide a portable chest cavity drainage device. The technical problem to be solved is that most chest cavity drainage in the prior art uses water-sealed bottle-type devices for drainage. These devices usually have thick tubes, which are uncomfortable for patients and inconvenient to carry. At the same time, sterile water needs to be changed every day.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a portable chest cavity drainage device, including a chest tube, a three-way valve, a catheter, a speed control switch, a negative pressure assembly, and a negative pressure drain. The two valve ports of the three-way valve are respectively connected to the ends of the chest tube and the catheter, and the other valve port of the three-way valve is provided with a protective cap for sealing. The negative pressure assembly is located at the other end of the catheter and is used to connect the negative pressure drain. The speed control switch is located on the catheter and is used to adjust the drainage speed.

[0007] By replacing the traditional water bottle-type device with a negative pressure drainage device for venting, the device is easy to carry and assemble. The negative pressure drainage device is protected by a three-way valve and a speed control switch. The venting rate of the negative pressure drainage device can be controlled by the speed control switch. At the same time, the negative pressure drainage device, together with the three-way valve and speed control switch, can achieve repeated venting.

[0008] Optionally, the three-way valve is a T-type valve, and the opposite valve ports of the T-type three-way valve are respectively connected to the thoracic tube and the catheter, so as to realize the opening and closing of the pipeline by adjusting the valve, and to realize the opening and closing of the airway of the catheter and the thoracic tube by rotating the adjusting valve by selecting the T-type valve.

[0009] Optionally, the negative pressure assembly includes an air tube and a sealing tube. The air tube is an integrated design on the top of the negative pressure drainer and is connected to the conduit. The sealing tube is located on the top of the negative pressure drainer to realize the opening and closing of the airway.

[0010] Optionally, an extension tube is connected to the end of the trachea, and the catheter is sealed and sleeved on the extension tube. The extension tube is provided with several contact points at intervals to increase the friction surface. By providing several contact points, the friction between the inner wall of the catheter and the extension tube is increased, reducing the risk of catheter dislodgement.

[0011] Optionally, the sealing tube is movably fitted with a sealing cylinder. The end of the sealing cylinder is provided with a threaded ring that is threadedly connected to the inner wall of the sealing tube. The outer circumferential surface of the sealing cylinder is provided with several through grooves for ventilation. By setting the sealing cylinder, rotating the sealing cylinder causes the sealing cylinder to move along the inside and outside of the sealing tube under the action of the threaded ring at its end, thereby changing the position of the through grooves inside and outside the sealing tube, thus realizing the opening and closing of the negative pressure drain.

[0012] Optionally, the negative pressure assembly includes an air tube, a sealing tube, and an adapter. The air tube and the sealing tube are fixedly installed on the top of the negative pressure drainer. The adapter is detachably installed on the top of the negative pressure drainer. The adapter is provided with a connecting air tube that communicates with the air tube. The adapter is also provided with an extension tube for connection that communicates with the connecting air tube. By providing the adapter, the tube is connected to the extension tube.

[0013] Optionally, the extension tube is configured as a straight section and a frustum section, and a locking mechanism is provided at the connection between the straight section and the frustum section. The conduit is sleeved on the extension tube, and the locking mechanism is sleeved and locked on the outer periphery of the conduit. By setting the locking mechanism, the conduit is securely sleeved on the outer periphery of the extension tube.

[0014] Optionally, the locking mechanism includes a cable, a lock head, and a locking nut. One end of the cable is fixed to the lock head, and the other end movably passes through the lock head. The locking nut is screwed into the lock head to abut and limit the cable, thereby sealing the conduit around the outer periphery of the extension tube.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The portable chest cavity air drainage device of this utility model replaces the traditional water bottle-type device with a negative pressure drainage device. The device is easy to carry and assemble. It provides dual protection for the negative pressure drainage device by setting a three-way valve and a speed control switch. The speed control switch also controls the air drainage rate of the negative pressure drainage device. At the same time, the negative pressure drainage device, combined with the three-way valve and speed control switch, can achieve repeated air drainage.

[0017] 2. The portable thoracic airway device of this utility model uses a T-type valve to achieve the opening and closing of the catheter and thoracic tube airway by rotating the regulating valve. By setting several contact points, the friction between the inner wall of the catheter and the extension tube is increased, reducing the risk of catheter dislodgement. By setting a sealing cylinder, rotating the sealing cylinder, under the action of the threaded ring at its end, drives the sealing cylinder to move along the inside and outside of the sealing tube, thereby changing the position of the through groove inside and outside the sealing tube, thus realizing the opening and closing of the negative pressure drainage device. By setting a locking mechanism, the catheter is securely sleeved on the outer circumference of the extension tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0020] Figure 3 This is an explosion diagram of the sealing tube and sealing cylinder of this utility model;

[0021] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0022] Figure 5 This is a partially enlarged structural schematic diagram of Embodiment 2 of this utility model;

[0023] Figure 6 This is an exploded view of the extension tube and locking mechanism in Embodiment 2 of this utility model.

[0024] In the diagram: 1-thoracic tube, 2-three-way valve, 3-catheter, 4-speed control switch, 5-negative pressure assembly, 51-trachea, 52-sealing tube, 53-extension tube, 54-contact, 55-retaining ring, 56-sealing cylinder, 57-threaded ring, 58-through groove, 6-negative pressure drainage device, 59-connecting trachea, 60-adapter, 61-groove, 62-wire harness, 63-lock head, 64-through hole, 65-locking nut. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example 1

[0026] like Figures 1 to 3 As shown, this embodiment provides a portable chest cavity drainage device, including a chest tube 1, a three-way valve 2, a catheter 3, a negative pressure assembly 5, and a negative pressure drainage device 6. In this embodiment, the chest tube 1 is used for indwelling insertion into the patient's chest cavity. One valve port of the three-way valve 2 is connected to the chest tube 1, and the other valve port is connected to one end of the catheter 3. The negative pressure assembly 5 is located on the top of the negative pressure drainage device 6, and the other end of the catheter 3 is connected to the negative pressure assembly 5.

[0027] In use, connect all components, open the three-way valve 2 to connect the chest tube 1 and the catheter 3, and the negative pressure drainage device 6 will draw out the air from the patient's chest cavity during the recovery process to help the patient expel gas. Turn the three-way valve 2 again to close the air passage between the chest tube 1 and the catheter 3, and the air in the negative pressure drainage device 6 will be discharged through the negative pressure component 5. Control the three-way valve 2 again to open the air passage between the chest tube 1 and the catheter 3, thereby realizing the circulation and expulsion of gas.

[0028] In this embodiment, the three-way valve 2 is preferably a T-type valve in the prior art, and the opposite valve ports of the T-type valve are respectively connected to the thoracic tube 1 and the catheter 3. The other valve port of the T-type valve is sealed with a protective cap in the prior art. In use, the air passage between the thoracic tube 1 and the catheter 3 is opened by rotating the regulating valve.

[0029] refer to Figure 2 As shown, in this embodiment, the catheter 3 is also equipped with a speed control switch 4, wherein the speed control switch 4 is preferably a flow regulator for infusion in the prior art. When in use, the flow rate in the catheter 3 is changed by pushing the roller in the flow regulator, thereby realizing the adjustment of the chest cavity air discharge rate. In this embodiment, the speed control switch 4 can close the air passage of the catheter 3 when the roller is pushed to the end. By combining the speed control switch 4 with the three-way valve 2, double protection against the opening of the negative pressure bulb is achieved, avoiding air leakage of the negative pressure drainage device 6 due to damage to the three-way valve 2.

[0030] refer to Figure 2 and Figure 3 As shown, the negative pressure component 5 in this embodiment includes a trachea 51 and a sealing tube 52. Both the trachea and the sealing tube 52 are fixed to the top of the negative pressure drainage device 6 using the integrated molding technology in the prior art. In this embodiment, the negative pressure drainage device 6 is preferably a disposable medical negative pressure drainage device 6 in the prior art. In this embodiment, the trachea 51 is connected to the end of the catheter 3.

[0031] refer to Figure 3 As shown, in this embodiment, the top of the trachea 51 is fixed with an extension tube 53, wherein the extension tube 53 is preferably a frustum section and a straight section. In this embodiment, the frustum section of the extension tube 53 preferably has a structure with a small top diameter and a large bottom diameter. The top of the frustum section is fixed to the straight section. In this embodiment, a number of contact points 54 are fixed at intervals on the outer periphery of the frustum section. The contact points 54 are preferably a protrusion structure made of rubber material.

[0032] When in use, the operator attaches the end of the conduit 3 to the extension tube 53, and the end of the conduit 3 fits tightly against the contact point 54 of the frustum section, so as to increase the friction when the conduit 3 is attached and reduce the risk of the conduit 3 slipping off.

[0033] refer to Figure 3 As shown, in this embodiment, a sealing cylinder 56 is movably sleeved in the sealing tube 52, wherein a threaded ring 57 is integrally formed at the end of the sealing cylinder 56, wherein the outer wall of the threaded ring 57 is threaded and threadedly connected to the inner wall of the sealing tube 52, wherein a plurality of through grooves 58 are provided on the outer circumferential surface of the sealing cylinder 56, wherein a retaining ring 55 is fixed on the top of the sealing tube 52, wherein the diameter of the retaining ring 55 is adapted to the threaded ring 57.

[0034] When the negative pressure drainer 6 needs to release the internal gas for reuse, simply close the three-way valve 2, rotate the sealing cylinder 56 until the through groove 58 located inside the sealing tube 52 moves with the sealing cylinder 56 to the top of the sealing tube 52, press the negative pressure drainer 6 to discharge the remaining gas inside, and then rotate the sealing cylinder 56 in the opposite direction until the through groove 58 is hidden in the sealing tube 52. At this time, the negative pressure drainer 6 can be vented again. Example 2

[0035] like Figures 4 to 6 As shown, based on Embodiment 1, this embodiment can be designed as follows:

[0036] An adapter 60 is added to the negative pressure drainage device 6, and the extension tube 53 is fixed to the adapter 60. In this embodiment, the adapter 60 is provided with a connecting air tube 59 to connect the air tube 51 and the extension tube 53. It should be noted that in this embodiment, the air tube 51 and the sealing tube 52 are fixedly set on the top of the negative pressure drainage device 6, while the adapter 60 is detachably set on the top of the negative pressure drainage device 6. Preferably, in this embodiment, the adapter 60 can be glued to the top of the negative pressure drainage device 6 using existing adhesives.

[0037] refer to Figure 6 As shown, unlike in Embodiment 1, the extension tube 53 in this embodiment has an annular groove 61 at the connection between the straight section and the frustum section, and a locking mechanism is also fitted on the extension tube 53. The locking mechanism in this embodiment includes a wire bundle 62, a lock head 63, and a locking nut 65. The wire bundle 62 is preferably a hemp rope with good friction made of plant fiber, which is available in the prior art. One end of the wire bundle 62 is fixed on the lock head 63, and the other end extends through the through hole 64 opened on the lock head 63. In this embodiment, the locking nut 65 is screwed into the lock head 63 to abut and limit the wire bundle 62. By setting a detachable adapter 60, the adapter 60 can be disassembled and recycled. By setting the extension tube 53 to have a frustum section and a straight section, and by locking the conduit 3 after it is fitted on the outer periphery with the locking mechanism, it is possible to achieve sealing after fitting conduits 3 of different diameters.

[0038] Working principle: The operator connects all components, opens the three-way valve 2 to connect the chest tube 1 and the catheter 3, and the negative pressure drainage device 6 draws out the gas inside the patient's chest cavity during the recovery process. Then, the three-way valve 2 is turned again to close the air passage between the chest tube 1 and the catheter 3. The sealing cylinder 56 is rotated until the through groove 58 located inside the sealing tube 52 moves to the top of the sealing tube 52 along with the sealing cylinder 56. At this time, the negative pressure drainage device 6 is pressed to expel the internal gas. The three-way valve 2 is controlled again to open the air passage between the chest tube 1 and the catheter 3, thereby realizing the circulation and exhaust of gas.

[0039] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A portable chest cavity decompression device, characterized in that: The device includes a chest tube (1), a three-way valve (2), a catheter (3), a speed control switch (4), a negative pressure assembly (5), and a negative pressure drain (6). The two ports of the three-way valve (2) are respectively connected to the ends of the chest tube (1) and the catheter (3), and the other port of the three-way valve (2) is provided with a protective cap for sealing. The negative pressure assembly (5) is located at the other end of the catheter (3) and is used to connect the negative pressure drain (6). The speed control switch (4) is located on the catheter (3) and is used to adjust the exhaust speed.

2. The portable chest cavity decompression device according to claim 1, characterized in that: The three-way valve (2) is a T-type valve, and the opposite valve ports of the T-type three-way valve are respectively connected to the thoracic tube (1) and the catheter (3) so as to realize the opening and closing of the pipeline by adjusting the valve.

3. A portable chest cavity air release device according to claim 2, characterized in that: The negative pressure assembly (5) includes an air tube (51) and a sealing tube (52). The air tube (51) is an integrated design on the top of the negative pressure drainer (6) and is connected to the conduit (3). The sealing tube (52) is located on the top of the negative pressure drainer (6) to realize the opening and closing of the airway.

4. A portable chest cavity decompression device according to claim 3, characterized in that: An extension tube (53) is connected to the end of the trachea (51). The conduit (3) is sealed and sleeved on the extension tube (53). The extension tube (53) is provided with a number of contact points (54) at intervals to increase the friction surface.

5. A portable chest cavity air release device according to claim 4, characterized in that: The sealing tube (52) is movably sleeved with a sealing cylinder (56). The end of the sealing cylinder (56) is provided with a threaded ring (57) that is threaded to the inner wall of the sealing tube (52). The outer circumferential surface of the sealing cylinder (56) is provided with several through grooves (58) for ventilation.

6. A portable chest cavity air release device according to claim 2, characterized in that: The negative pressure assembly (5) includes an air tube (51), a sealing tube (52), and an adapter (60). The air tube (51) and the sealing tube (52) are fixedly installed on the top of the negative pressure drainer (6). The adapter (60) is detachably installed on the top of the negative pressure drainer (6). The adapter (60) is provided with a connecting air tube (59) that communicates with the air tube (51). The adapter (60) is also provided with an extension tube (53) for connection that communicates with the connecting air tube (59).

7. A portable chest cavity air release device according to claim 6, characterized in that: The extension tube (53) is configured as a straight section and a frustum section. A locking mechanism is provided at the connection between the straight section and the frustum section. The conduit (3) is sleeved on the extension tube (53). The locking mechanism is sleeved and locked on the outer periphery of the conduit (3).

8. A portable chest cavity air release device according to claim 7, characterized in that: The locking mechanism includes a wire harness (62), a lock head (63), and a locking nut (65). One end of the wire harness (62) is fixed to the lock head (63), and the other end moves through the lock head (63). The locking nut (65) is screwed into the lock head (63) to abut and limit the wire harness (62) therein, so as to seal the conduit (3) around the extension tube (53).

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