Anti-needle-dropping thoracentesis and drainage device

Abstract

The present invention relates to the field of medical device technology, and in particular to an anti-drop needle type thoracentesis and drainage device, comprising a drainage tube body, the drainage tube body comprising an internal section and an external section, the internal section comprising an air drainage tube body, a liquid drainage tube body and an extension tube body, the extension tube body being arranged between the air drainage tube body and the liquid drainage tube body, and the drainage tube body being provided with a liquid drainage channel and an air drainage channel; and further comprising a negative pressure suction component, the internal section also comprising an attached tube body, the drainage tube body being provided with a negative pressure flow channel, the external section being provided with a negative pressure joint, the negative pressure suction component being connected to the negative pressure joint, and the negative pressure suction component being able to generate negative pressure suction during operation. The present invention turns on the negative pressure suction component, so that the attached tube body can be adsorbed on the inner wall of the patient's chest cavity, so that the freedom of movement of the internal section in the patient's chest cavity can be effectively restricted, and friction between the internal section and the inner wall of the patient's chest cavity during the drainage process is prevented, thereby reducing the risk of damage to the inner wall of the patient's chest cavity.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to an anti-needle-dropping type thoracentesis and drainage device. Background Art

[0002] Hydropneumothorax refers to the accumulation of both fluid and air in the pleural cavity. Clinical treatment for hydropneumothorax patients usually involves inserting two drainage tubes into the patient's chest cavity, one for draining the air in the patient's chest cavity and the other for draining the fluid in the patient's chest cavity. This drainage method can ensure the thoroughness of drainage and improve the patient's recovery effect. However, inserting two drainage tubes will also increase the patient's trauma and treatment costs.

[0003] In view of this, a Chinese utility model patent with application number CN201621304132.4 discloses a thoracic surgical drainage device, which includes a drainage tube and a drainage bottle connected to the rear end of the drainage tube; the drainage tube includes an outer tube and an inner tube inserted into the outer tube, the front end of the outer tube is used to be inserted into the chest cavity of the patient, and has a first channel for discharging liquid; the inner tube has a second channel for discharging gas, which is inserted into the first channel of the outer tube, the outer diameter of the inner tube is smaller than the diameter of the first channel, and is fixedly connected to the outer tube through a support assembly; the front end of the inner tube extends from the front end of the outer tube, and the extended end thereof is a closed spherical surface, and the inner tube near the end is provided with a second channel for discharging gas. The side wall is provided with a plurality of air guide holes connected with the second channel; the utility model inserts the front end of the drainage tube into the chest cavity of the patient so that the end of the outer tube is located in the bottom area of ​​the chest cavity, so that the liquid in the chest cavity can be discharged through the first channel of the outer tube; the end of the inner tube is located in the top area of ​​the chest cavity, so that the gas in the chest cavity can be discharged from the second channel through the air guide holes on the end of the inner tube; the gas and liquid in the chest cavity can be discharged simultaneously by the combined action of the outer tube and the inner tube; at the same time, by designing the front end of the inner tube into a spherical closed structure, when the inner tube is inserted into the chest cavity, the open port can be prevented from causing damage to human tissues and increasing the pain of the patient's surgery, and the insertion of the inner tube is more convenient. However, there are still some shortcomings, as described below:

[0004] In order to ensure that the accumulated fluid and gas can be drained out of the body at the same time, the drainage tube of the above-mentioned drainage device needs to be inserted from the seventh intercostal space below the scapular angle of the patient, and the drainage tube enters the patient's chest cavity and extends to the upper part of the chest cavity. This will cause the drainage tube to be left in the patient's chest cavity for too long, and the drainage tube will have a high degree of freedom of movement in the patient's body. When the patient breathes, his lungs will constantly push against the drainage tube, which will cause friction between the drainage tube and the patient's chest cavity inner wall, thereby increasing the risk of damage to the patient's chest cavity inner wall during the drainage process; and the friction between the drainage tube and the patient's chest cavity inner wall will also cause pain to the patient during the drainage process, reducing the patient's comfort during drainage treatment.

[0005] Therefore, how to limit the freedom of movement of the drainage tube in the patient's chest cavity and suppress the friction between the drainage tube and the inside of the patient's chest cavity is a technical problem that needs to be solved urgently in the prior art. Summary of the invention

[0006] The purpose of the present invention is to ensure that the accumulated fluid and accumulated gas can be drained out of the body at the same time in order to ensure that the drainage device existing in the prior art can simultaneously drain the accumulated fluid and accumulated gas out of the body. The drainage tube needs to be inserted from the seventh intercostal space below the scapular angle of the patient, and the drainage tube extends toward the upper part of the chest cavity after entering the patient's chest cavity. This will cause the drainage tube to be left in the patient's chest cavity for too long, and the drainage tube will have a high degree of freedom of movement in the patient's body. When the patient breathes, his lungs will constantly push against the drainage tube, which will cause friction between the drainage tube and the inner wall of the patient's chest cavity, thereby increasing the risk of damage to the inner wall of the patient's chest cavity during the drainage process. A needle-proof thoracentesis and drainage device is provided.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A needle-proof thoracotomy drainage device includes a drainage tube body, the drainage tube body includes an internal segment and an external segment, the internal segment is used to extend into the patient's chest cavity, the internal segment includes an air drainage tube body, a liquid drainage tube body and an extension tube body, the air drainage tube body is arranged at the end of the internal segment, and an air inlet hole is arranged on the air drainage tube body.

[0009] The liquid introduction tube body is arranged on a side close to the external section, the liquid introduction tube body is provided with a liquid inlet hole, and the extension tube body is arranged between the air introduction tube body and the liquid introduction tube body.

[0010] The drainage tube body is provided with a liquid drainage channel and an air drainage channel, the air inlet is communicated with the air drainage channel, the liquid inlet is communicated with the liquid drainage channel, the liquid drainage channel is used to form a flow channel for draining the accumulated fluid in the patient's chest cavity out of the body, and the air drainage channel is used to form a flow channel for draining the accumulated air in the patient's chest cavity out of the body;

[0011] The anti-drop needle type thoracentesis and drainage device also includes a negative pressure suction component, the internal segment also includes an attached tube body, the attached tube body is arranged between the air guide tube body and the extension tube body, the attached tube body is provided with a plurality of negative pressure holes, the drainage tube body is also provided with a negative pressure flow channel, the negative pressure holes are connected to the negative pressure flow channel, the external segment is provided with a negative pressure joint, the negative pressure joint is connected to the negative pressure flow channel,

[0012] The negative pressure suction component is connected to the negative pressure connector. When the negative pressure suction component is in operation, it can generate negative pressure suction, so that the attached tube body can be adsorbed on the inner wall of the patient's chest cavity. When the attached tube body is adsorbed on the inner wall of the patient's chest cavity, the negative pressure hole is closed by the inner wall tissue of the patient's chest cavity.

[0013] Preferably, the air inlet hole is arranged at the end of the air duct body.

[0014] Preferably, the cross-sections of the attachment tube body and the air duct body are configured as flat structures.

[0015] Preferably, an airbag is provided on the inner segment, and an inflation flow channel connected to the airbag is also provided in the drainage tube body. The airbag is provided on the side of the inner segment away from the patient's chest cavity. When air is filled into the airbag, the airbag expands toward the side of the inner segment away from the patient's chest cavity, so that the airbag can abut against the patient's lungs, so that the attached tube body moves closer to the inner wall of the patient's chest cavity.

[0016] Preferably, the attached tube body comprises a deformation zone and an adsorption zone, the negative pressure hole is arranged on the adsorption zone, the extension tube body is provided with a first guide hole, the external segment is provided with a second guide hole, the connecting line of the first guide hole and the second guide hole is parallel to the central axis of the drainage tube body, the first guide hole and the second guide hole both pass through the drainage channel,

[0017] The drainage tube body is also provided with a pulling rope, which has a free end and a fixed end, and the fixed end of the pulling rope is connected to the attached tube body; the free end of the pulling rope passes through the first guide hole into the drainage channel and then passes through the second guide hole.

[0018] After the internal segment is extended into the patient's chest cavity, the pulling rope is pulled to tighten it, and the deformation zone is bent and deformed under the action of the pulling force of the pulling rope, so that the adsorption zone can move closer to the inner wall of the patient's chest cavity.

[0019] Preferably, a rotating component is provided on the external segment, and the rotating component includes a first receiving tube, a second receiving tube and a rotating ring, the first receiving tube is communicated with the liquid introduction channel, the first receiving tube and the second receiving tube are arranged at intervals, the rotating ring is arranged between the first receiving tube and the second receiving tube, the rotating ring is threadedly connected with the first receiving tube and the second receiving tube, and the second guide hole is arranged on the rotating ring;

[0020] When the pulling rope is in a taut state, the rotating ring is rotated clockwise or counterclockwise, so that the pulling rope in the liquid drainage channel can form a circular motion around the central axis of the liquid drainage channel.

[0021] Preferably, the first receiving tube and the second receiving tube are provided with limit blocks, and the limit blocks are used to limit the number of revolutions that the rotating ring can rotate clockwise or counterclockwise to one revolution.

[0022] Preferably, a first gasket tube is provided at a position of the inner wall of the extension tube body corresponding to the first guide hole, and a second gasket tube is provided at a position of the inner wall of the rotating ring corresponding to the second guide hole. The pulling rope passes through the first gasket tube and the second gasket tube. The first gasket tube cooperates with the second gasket tube so that the pulling rope can be separated from the inner wall of the liquid introduction channel in a tensioned state.

[0023] Preferably, the second gasket tube is clamped on the side wall of the rotating ring, and the second gasket tube can slide in the diameter direction of the rotating ring; the second gasket tube and the rotating ring have a first matching form and a second matching form, and in the first matching form, the second gasket tube is completely extended into the interior of the rotating ring; in the second matching form, the first gasket tube slides out from the interior of the rotating ring, and the end of the second gasket tube facing the side of the central axis of the rotating ring is flush with the inner wall of the rotating ring.

[0024] Preferably, a wire winding groove is provided on the surface of the rotating ring, the free end of the pulling rope can be wound and fixed in the wire winding groove, and the second guide hole is provided in the wire winding groove.

[0025] Preferably, the cross-sectional shape of the cable winding trough is set to be a "V" shape.

[0026] Preferably, the free end of the pulling rope is also provided with a wire clip, and the wire clip can be clipped onto the outer body segment.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. In the anti-dropout needle-type thoracic puncture and drainage device described in the present invention, after the internal segment is fully extended into the patient's chest cavity, the negative pressure suction component is turned on, so that the attached tube body can be adsorbed on the inner wall of the patient's chest cavity, so that the freedom of movement of the internal segment in the patient's chest cavity can be effectively restricted, preventing the internal segment from rubbing against the inner wall of the patient's chest cavity during the drainage process, thereby reducing the risk of damage to the inner wall of the patient's chest cavity and improving the patient's comfort during treatment; and, the attached tube body is adsorbed on the inner wall of the patient's chest cavity, which can also make the drainage tube body more firmly fixed, reducing the risk of the drainage tube body falling out of the patient's body during the drainage process;

[0029] 2. In the anti-drop needle type thoracentesis and drainage device described in the present invention, the rotating component is arranged on the external section; when the drainage channel is blocked, the pulling rope is adjusted to a straight state, and the free end of the pulling rope is wound around the rotating ring, and the rotating ring is rotated clockwise or counterclockwise. During this process, the rotating ring can drive the pulling rope to make a circular motion around the central axis of the drainage channel, and the blood clots blocked in the drainage channel can be cut and broken by the pulling rope, so that the drainage channel can be unblocked more conveniently and quickly, and the practicality of the present invention in actual use is further improved;

[0030] 3. In the anti-drop needle thoracentesis and drainage device described in the present invention, the second gasket tube is clamped on the side wall of the rotating ring, and the second gasket tube can slide in the diameter direction of the rotating ring; the second gasket tube and the rotating ring have a first matching form and a second matching form, in the first matching form, the second gasket tube is completely inserted into the interior of the rotating ring; in the second matching form, the first gasket tube slides out from the interior of the rotating ring, and the end of the second gasket tube facing the central axis of the rotating ring is flush with the inner wall of the rotating ring. In this embodiment, after the unblocking operation of the drainage tube body is completed, the second gasket tube and the rotating ring are adjusted to the second matching form, so that the pulling rope can be close to the inner wall of the drainage tube body in a straight state, avoiding the pulling rope from affecting the patency of the outflow of the effusion; when the second gasket tube and the rotating ring are transformed from the first matching form to the second matching form, the medical staff can pull the pulling rope to push the second gasket tube out. Furthermore, in the present embodiment, when performing a blockage unblocking operation, the pulling rope is adjusted to a stretched state, and then the matching form between the second gasket tube and the rotating ring is alternately switched, that is, the second gasket tube is alternately reciprocatedly extended into / out of the rotating ring, so that the pulling rope forms a reciprocating linear motion in the diameter direction of the cross-section of the drainage channel, and the rotating ring can be continuously adjusted during this process, so that the pulling rope forms a reciprocating linear motion on different diameter paths of the cross-section of the drainage channel, so that the pulling rope can produce a denser cutting surface in the drainage channel, thereby further improving the effect of the pulling rope on breaking up blood clots. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an isometric structural diagram of an anti-drop needle type thoracentesis and drainage device;

[0032] Figure 2 It is a schematic diagram of the structure of the internal segment of an anti-needle-dropping thoracentesis and drainage device;

[0033] Figure 3 yes Figure 1 The structural diagram of A in the figure;

[0034] Figure 4 It is a cross-sectional schematic diagram of an anti-drop needle type thoracentesis and drainage device;

[0035] Figure 5 yes Figure 4 Schematic diagram of the structure of B;

[0036] Figure 6 yes Figure 4 Schematic diagram of the structure of C;

[0037] Figure 7 yes Figure 4 Schematic diagram of the structure of D;

[0038] Figure 8 is a schematic diagram of the structure of the second gasket tube and the rotating ring switching between the first matching form and the second matching form;

[0039] Fig. 9 It is an isometric structural schematic diagram of a second embodiment of an anti-drop needle type thoracentesis and drainage device;

[0040] Markings in the figure: 1-drainage tube body, 2-inner section, 3-external section, 4-air drainage tube body, 5-liquid drainage tube body, 6-extension tube body, 7-air inlet hole, 8-liquid inlet hole, 9-liquid drainage channel, 10-air drainage channel, 12-attached tube body, 13-negative pressure hole, 14-negative pressure flow channel, 15-negative pressure joint, 16-deformation zone, 17-adsorption zone, 18-first guide hole, 19-second guide hole, 20-pulling rope, 21-rotating component, 22-first receiving tube, 23-second receiving tube, 24-rotating ring, 25-limit block, 26-first gasket pipe, 27-second gasket pipe, 28-winding groove, 29-wire clamp, 30-airbag. DETAILED DESCRIPTION

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] Example 1: Figures 1 to 7 As shown, the anti-drop needle type thoracentesis and drainage device of the present invention comprises a drainage tube body 1, wherein the drainage tube body 1 comprises an internal segment 2 and an external segment 3, wherein the internal segment 2 is used to extend into the patient's chest cavity, wherein the internal segment 2 comprises an air guide tube body 4, a liquid guide tube body 5 and an extension tube body 6, wherein the air guide tube body 4 is arranged at the end of the internal segment 2, and an air inlet hole 7 is arranged on the air guide tube body 4.

[0044] The liquid introduction tube body 5 is arranged on the side close to the external section 3, and a liquid inlet hole 8 is arranged on the liquid introduction tube body 5. The extension tube body 6 is arranged between the air introduction tube body 4 and the liquid introduction tube body 5.

[0045] The drainage tube body 1 is provided with a liquid drainage channel 9 and an air drainage channel 10, the air inlet hole 7 is communicated with the air drainage channel 10, the liquid inlet hole 8 is communicated with the liquid drainage channel 9, the liquid drainage channel 9 is used to form a flow channel for draining the accumulated fluid in the patient's chest cavity out of the body, and the air drainage channel 10 is used to form a flow channel for draining the accumulated air in the patient's chest cavity out of the body;

[0046] The anti-drop needle type thoracentesis and drainage device also includes a negative pressure suction component, the internal segment 2 also includes an attached tube body 12, the attached tube body 12 is arranged between the air guide tube body 4 and the extension tube body 6, and a plurality of negative pressure holes 13 are arranged on the attached tube body 12, a negative pressure flow channel 14 is also arranged in the drainage tube body 1, and the negative pressure holes 13 are connected to the negative pressure flow channel 14, and a negative pressure joint 15 is arranged on the external segment 3, and the negative pressure joint 15 is connected to the negative pressure flow channel 14.

[0047] The negative pressure suction component is connected to the negative pressure connector 15. When the negative pressure suction component is in operation, it can generate negative pressure suction, so that the attached tube body 12 can be adsorbed on the inner wall of the patient's chest cavity. When the attached tube body 12 is adsorbed on the inner wall of the patient's chest cavity, the negative pressure hole 13 is closed by the inner wall tissue of the patient's chest cavity.

[0048] By using the anti-dropout needle-type thoracic puncture and drainage device described in the present invention, after the internal segment 2 is fully extended into the patient's chest cavity, the negative pressure suction component is turned on, so that the attached tube body 12 can be adsorbed on the inner wall of the patient's chest cavity. In this way, the freedom of movement of the internal segment 2 in the patient's chest cavity can be effectively restricted, preventing the internal segment 2 from rubbing against the patient's chest cavity inner wall during the drainage process, thereby reducing the risk of damage to the patient's chest cavity inner wall and improving the patient's comfort during treatment; and, the attachment tube body 12 is adsorbed on the inner wall of the patient's chest cavity, which can also make the drainage tube body more firmly fixed, reducing the risk of the drainage tube body 1 falling out of the patient's body during the drainage process.

[0049] Specifically, in this embodiment, when in use, the drainage tube body 1 is inserted from the seventh intercostal space below the scapular angle of the patient, and the insertion path of the internal segment 2 extends from the puncture point to the upper part of the patient's chest cavity. A scale mark is provided on the outer surface of the drainage tube body 1, and the medical staff can confirm the depth of the drainage tube body 1 inserted into the patient's chest cavity by observing the value of the scale mark; the negative pressure suction component in this embodiment is a medical vacuum negative pressure machine of the prior art, and the negative pressure suction force generated by it can be adjusted; when the internal segment 2 is extended into place, the negative pressure suction component is opened, and the negative pressure hole Negative pressure suction is formed at the position of 13, so that the attached tube body 12 can be adsorbed on the inner wall of the patient's chest cavity, thereby limiting the freedom of movement of the internal segment 2; in this embodiment, the negative pressure hole 13 is arranged on the side of the attached tube body 12 facing the inner wall of the patient's chest cavity, so that when the attached tube body 12 is adsorbed on the inner wall of the patient's chest cavity, the negative pressure hole 13 can be blocked by the patient's chest cavity inner wall tissue, thereby avoiding the excessive discharge of accumulated air in the patient's chest cavity under the action of negative pressure suction, resulting in a sudden drop in chest cavity pressure, and the occurrence of complications such as post-re-expansion pulmonary edema, circulatory failure or pleural reaction;

[0050] The anti-drop needle type thoracentesis and drainage device in this embodiment also includes a drainage bottle, and a liquid drainage joint and an air drainage joint are also provided on the external section 3, the liquid drainage joint is connected to the liquid drainage channel 9, and the air drainage joint is connected to the air drainage channel 10; the drainage bottle includes a fluid collection bottle body and a water seal bottle body, the liquid drainage joint and the air drainage joint are connected to the fluid collection bottle body, a water seal liquid is provided in the water seal bottle body, a first bridge pipe is provided between the fluid collection bottle body and the water seal bottle body to connect the two, and the first bridge pipe The tube extends below the liquid level of the water seal liquid, and the water seal bottle body is also provided with an exhaust pipe, which is connected to the atmospheric environment; during the drainage process, the accumulated fluid in the patient's body is drained into the liquid collection bottle body through the drainage channel 9 for storage, and the liquid collection bottle body is also provided with a liquid level line indication to record relevant data of the patient's drainage fluid; the accumulated gas in the patient's body is drained into the liquid collection bottle body through the gas drainage channel 10, and then enters the water seal bottle body through the first bridge pipe, and finally discharged into the atmospheric environment through the exhaust pipe;

[0051] In a further embodiment, the negative pressure suction component includes a negative pressure machine and a negative pressure bottle body, wherein pressure-regulated water is arranged in the negative pressure bottle body, and a pressure regulating tube is arranged on the negative pressure bottle body, wherein one end of the pressure regulating tube is connected to the atmospheric environment, and the other end extends below the liquid level of the pressure-regulated water; a second bridge tube is arranged between the negative pressure bottle body and the water seal bottle body, and a switch valve is arranged on the second bridge tube, and the switch valve is used to control the opening / closing of the second bridge tube; a sealing cover is also arranged on the exhaust pipe, and the sealing cover is used to control the opening / closing of the exhaust pipe; the negative pressure joint 15 is connected to the negative pressure bottle body;

[0052] In actual use, when the attached tube body 12 is operated to be adsorbed on the inner wall of the patient's chest cavity, the second bridge tube needs to be set to a closed state and the exhaust pipe needs to be set to an open state. At this time, due to the high air pressure in the patient's chest cavity, the accumulated gas can be drained into the effusion bottle body through the air induction channel 10 under the action of the internal and external pressure difference, and then enter the water seal bottle body through the first bridge tube, and finally discharged into the atmosphere through the exhaust pipe;

[0053] When the accumulated gas is gradually discharged and the pressure in the patient's chest cavity is reduced, the exhaust pipe is set to a closed state, and the second bridge pipe is set to an open state. Under the action of negative pressure suction, the accumulated gas remaining in the patient's chest cavity is drained into the effusion bottle body through the air induction channel 10, enters the water seal bottle body through the first bridge pipe, enters the negative pressure bottle body through the second bridge pipe, and is finally discharged into the external environment through the negative pressure machine; this can improve the thoroughness of the discharge of the accumulated gas in the patient's chest cavity and improve the treatment effect.

[0054] As a preferred embodiment, based on the above method, further, the air inlet 7 is arranged at the end of the air guide tube body 4. With this structural arrangement, it is possible to avoid the air inlet 7 being blocked after the attached tube body 12 is adsorbed on the inner wall of the patient's chest cavity, thereby ensuring the unobstructed discharge of the accumulated air in the patient's chest cavity.

[0055] As a preferred embodiment, based on the above method, further, the cross-section of the attached tube body 12 and the air duct body 4 is set to a flat structure. With this structural setting, the contact area between the attached tube body 12 and the inner wall of the patient's chest cavity can be increased, and the stability of the attached tube body 12 adsorbed on the inner wall of the patient's chest cavity can be improved.

[0056] Example 2: Figures 1 to 7 As shown, the anti-dropout needle type thoracentesis and drainage device described in the present invention is based on the above method. Further, the attached tube body 12 includes a deformation area 16 and an adsorption area 17, the negative pressure hole 13 is arranged on the adsorption area 17, the extension tube body 6 is provided with a first guide hole 18, and the external segment 3 is provided with a second guide hole 19. The connecting line of the first guide hole 18 and the second guide hole 19 is parallel to the central axis of the drainage tube body 1, and the first guide hole 18 and the second guide hole 19 both pass through the drainage channel 9.

[0057] The drainage tube body 1 is also provided with a pulling rope 20, which has a free end and a fixed end. The fixed end of the pulling rope 20 is connected to the attached tube body 12; the free end of the pulling rope 20 passes through the first guide hole 18 into the drainage channel 9, and then passes through the second guide hole 19.

[0058] After the internal segment 2 is extended into the patient's chest cavity, the pulling rope 20 is pulled to tighten it, and the deformation zone 16 is bent and deformed under the action of the pulling force of the pulling rope 20, so that the adsorption zone 17 can move closer to the inner wall of the patient's chest cavity.

[0059] In the present embodiment, it is taken into consideration that in the case of a large amount of fluid and gas accumulation, the volume of the cavity formed in the patient's chest cavity is relatively large. Thus, after the internal segment 2 is extended into the patient's chest cavity, the distance between the attached tube body 12 and the inner wall of the patient's chest cavity may be too large, thereby causing the attached tube body 12 to be difficult to be adsorbed on the inner wall of the patient's chest cavity during the catheterization operation, thereby increasing the difficulty of the catheterization operation. For the above reasons, in the present embodiment, the pulling rope 20 is provided on the drainage tube body 1. During the catheterization operation, after the external segment 3 is inserted into the patient's chest cavity, the pulling rope 20 is pulled to tighten it, and the deformation zone 16 can bend and deform under the action of the pulling force of the pulling rope 20, thereby enabling the adsorption zone 17 to move closer to the inner wall of the patient's chest cavity, thereby improving the convenience of adsorbing the attached tube body 12 on the inner wall of the patient's chest cavity during the catheterization operation.

[0060] It should be noted that in the present embodiment, the pulling rope 20 can be tightly attached to the side wall of the drainage channel 9 when it is tightened, and will basically not affect the smoothness of the drainage; in the present embodiment, the fixed end of the pulling rope 20 is connected to the attached tube body 12 by hot melting, and the deformability of the material in the deformation zone 16 is greater than the deformability of the material in the adsorption zone 17 and the extension tube body 6; after the pulling rope 20 is pulled to tighten it, its free end can be wrapped around the external segment 3 corresponding to the second guide hole 19, so that the second guide hole 19 can be blocked by the pulling rope 20, thereby preventing the accumulated fluid from seeping out of the second guide hole 19 during the drainage process; further, a medical patch can be pasted on the second guide hole 19, so that the thoroughness of the blocking of the second guide hole 19 can be improved.

[0061] As a preferred embodiment, based on the above manner, further, the negative pressure flow channel 14 is arranged to avoid the bending and deformation area of ​​the deformation zone 16. With this structural arrangement, it is possible to avoid squeezing the negative pressure flow channel 14 when the deformation zone 16 is bent and deformed, causing the negative pressure flow channel 14 to be blocked, ensuring that during the operation of adsorbing the attached tube body 12 on the inner wall of the patient's chest cavity, the negative pressure suction force can be stably and continuously generated at the negative pressure hole 13, thereby improving the practicality and reliability of the present invention in actual use.

[0062] Example 3: Figure 5 and Figure 8As shown, the anti-drop needle type thoracentesis and drainage device described in the present invention is based on the above method, and further, the external segment 3 is provided with a rotating component 21, and the rotating component 21 includes a first receiving tube 22, a second receiving tube 23 and a rotating ring 24, the first receiving tube 22 is connected to the drainage channel 9, the first receiving tube 22 and the second receiving tube 23 are arranged at intervals, the rotating ring 24 is arranged between the first receiving tube 22 and the second receiving tube 23, the rotating ring 24 and the first receiving tube 22 and the second receiving tube 23 are threadedly connected, and the second guide hole 19 is arranged on the rotating ring 24;

[0063] When the pulling rope 20 is in a taut state, the rotating ring 24 is rotated clockwise or counterclockwise, so that the pulling rope 20 in the liquid drainage channel 9 can form a circular motion around the central axis of the liquid drainage channel 9.

[0064] In this embodiment, considering that in the process of draining the effusion in the patient's chest cavity out of the body, the blood clots carried in the effusion may cause the drainage channel 9 to be blocked, resulting in poor drainage, which increases the patient's pain and brings additional work burden to medical staff during the process of unblocking the pipeline. Based on this, in this embodiment, the rotating component 21 is set on the external section 3; when the drainage channel 9 is blocked, the pulling rope 20 is adjusted to a straight state, and the free end of the pulling rope 20 is wound around the rotating ring 24, and the rotating ring 24 is rotated clockwise or counterclockwise. During this process, the rotating ring 24 can drive the pulling rope 20 to make a circular motion around the central axis of the drainage channel 9, and then the blood clots blocked in the drainage channel 9 can be cut and broken by the pulling rope 20, so that the drainage channel 9 can be unblocked more conveniently and quickly, further improving the practicality of the present invention in actual use.

[0065] As a preferred embodiment, based on the above method, further, a limit stopper 25 is provided on the first receiving tube 22 and the second receiving tube 23, and the limit stopper 25 is used to limit the number of clockwise or counterclockwise rotations of the rotating ring 24 to one circle.

[0066] Specifically, in actual use, the embodiment repeatedly twists the rotating ring 24 multiple times, so that the pulling rope 20 in the drainage channel 9 repeats between clockwise circular motion and counterclockwise circular motion, completing the unblocking operation of the drainage channel 9. With this structural setting, in the operation of unblocking the drainage channel 9, the twisting deformation of the pulling rope 20 can be reduced, thereby reducing the risk of the pulling rope 20 breaking during use; and with this structural setting, the rotation torque transmitted to the attached tube body 12 by the pulling rope 20 can also be reduced, and the deformation degree of the deformation zone 16 caused by the pulling rope 20 in the unblocking operation is smaller, thereby reducing the risk of the attached tube body 12 falling off from the inner wall of the patient's chest cavity.

[0067] As a preferred embodiment, on the basis of the above method, further, a first gasket tube 26 is provided on the inner wall of the extension tube body 6 at a position corresponding to the first guide hole 18, and a second gasket tube 27 is provided on the inner wall of the rotating ring 24 at a position corresponding to the second guide hole 19, and the pulling rope 20 passes through the first gasket tube 26 and the second gasket tube 27, and the first gasket tube 26 cooperates with the second gasket tube 27 so that the pulling rope 20 can be separated from the inner wall of the liquid introduction channel 9 in a tensioned state.

[0068] In this embodiment, the first gasket tube 26 and the second gasket tube 27 can make the traction rope 20 in a straight state close to the central axis of the drainage tube body 5. In this way, on the one hand, during the unblocking operation, the friction between the traction rope 20 and the side wall of the drainage tube body 5 when the traction rope 20 makes a circular motion can be reduced, thereby reducing the disturbance caused by the traction rope 20 to the internal segment 2, and further reducing the risk of the attached tube body 12 falling off from the inner wall of the patient's chest cavity. On the other hand, adopting this structural setting can make the cutting ring formed by the circular motion of the traction rope 20 close to the central axis of the drainage tube body 5, thereby enhancing the effect of the traction rope 20 on breaking blood clots.

[0069] Example 4: Figure 8 As shown, the anti-dropout needle type thoracic puncture and drainage device described in the present invention is based on the above method, and further, the second gasket tube 27 is clamped on the side wall of the rotating ring 24, and the second gasket tube 27 can slide in the diameter direction of the rotating ring 24; the second gasket tube 27 and the rotating ring 24 have a first matching form and a second matching form. In the first matching form, the second gasket tube 27 is completely extended into the interior of the rotating ring 24; in the second matching form, the first gasket tube slides out from the interior of the rotating ring 24, and the end of the second gasket tube 27 facing the central axis of the rotating ring 24 is flush with the inner wall of the rotating ring 24.

[0070] Specifically, in this embodiment, both ends of the second gasket tube 27 are provided with limit ring plates, and the side wall of the rotating ring 24 is provided with a receiving groove that matches the size of the limit ring plate; in this embodiment, when performing the unblocking operation of the drainage tube body 5, the second gasket tube 27 and the rotating ring 24 are adjusted to the first matching form, so that the pulling rope 20 in the straight state is brought closer to the central axis of the drainage tube body 5; the specific operation is that the medical staff presses the second gasket tube 27 to make the second gasket tube 27 fully extend into the rotating ring 24, and then wraps the free end of the pulling rope 20 around the part of the external segment 3 corresponding to the second gasket tube 27 to achieve the locking of the first matching form between the second gasket tube 27 and the rotating ring 24, and then rotates the rotating ring 24 alternately clockwise / counterclockwise until the effusion can be drained smoothly again, that is, the unblocking operation is completed;

[0071] After the unblocking operation of the drainage tube body 5 is completed, the second gasket tube 27 and the rotating ring 24 are adjusted to a second matching form, so that the pulling rope 20 can be close to the inner wall of the drainage tube body 5 in a stretched state, thereby avoiding the pulling rope 20 from affecting the smoothness of the outflow of the accumulated fluid; when the second gasket tube 27 and the rotating ring 24 are transformed from the first matching form to the second matching form, the medical staff can pull the pulling rope 20 to push out the second gasket tube 27.

[0072] Furthermore, in the present embodiment, when performing a blockage relieving operation, the pulling rope 20 is adjusted to a stretched state, and then the matching form between the second gasket tube 27 and the rotating ring 24 is alternately switched, that is, the second gasket tube 27 is alternately reciprocated and extended into / out of the rotating ring 24, so that the pulling rope 20 forms a reciprocating linear motion in the diameter direction of the cross-section of the drainage channel 9, and the rotating ring 24 can be continuously adjusted during this process, so that the pulling rope 20 forms a reciprocating linear motion on different diameter paths of the cross-section of the drainage channel 9, so that the pulling rope 20 can produce a denser cutting surface in the drainage channel 9, thereby further improving the effect of the pulling rope 20 on breaking up blood clots.

[0073] Example 5: Figure 5 and Figure 8As shown, the anti-drop needle type thoracentesis drainage device of the present invention is based on the above method, and further, the surface of the rotating ring 24 is provided with a wire winding groove 28, the free end of the pulling rope 20 can be wound and fixed in the wire winding groove 28, and the second guide hole 19 is arranged in the wire winding groove 28. With this structural arrangement, the pulling rope 20 wound on the surface of the rotating ring 24 can be more stably fixed; and after the second guide hole 19 is arranged in the wire winding groove 28 and the free end of the pulling rope 20 can be wound in the wire winding groove 28, the second guide hole 19 can be better closed, reducing the risk of leakage of effusion from the second guide hole 19 during drainage, and further improving the practicality of the present invention in actual use.

[0074] As a preferred embodiment, based on the above method, further, the cross-sectional shape of the winding groove 28 is set to be "V" shaped. With this structural setting, the wound pulling rope 20 can be concentrated at the second guide hole 19, thereby further reducing the risk of leakage of the accumulated fluid from the second guide hole 19 during the drainage process, thereby improving the practicality of the present invention in actual use.

[0075] As a preferred embodiment, based on the above method, further, the free end of the pulling rope 20 is provided with a wire clip 29, and the wire clip 29 can be clipped on the external segment 3. This structural setting improves the convenience of fixing the free end of the pulling rope 20.

[0076] Example 6: Fig. 9 As shown, the anti-dropout needle type thoracic puncture and drainage device described in the present invention is based on the above method, and further, an airbag 30 is provided on the inner segment 2, and an inflation flow channel connected to the airbag 30 is also provided in the drainage tube body 1, and the airbag 30 is arranged on the side of the inner segment 2 away from the patient's chest cavity. When air is filled into the airbag 30, the airbag 30 expands toward the side of the inner segment 2 away from the patient's chest cavity, and then the airbag 30 can abut against the patient's lungs, so that the attached tube body 12 is close to the inner wall of the patient's chest cavity.

[0077] This embodiment is a second implementation method for enabling the attached tube body 12 to approach the inner wall of the patient's chest cavity when the distance between the attached tube body 12 and the inner wall of the patient's chest cavity is too large during the catheterization operation. The specific operation is to fill the air bag 30 with gas, and the air bag 30 abuts against the patient's lungs when it expands, so that the attached tube body 12 approaches the inner wall of the patient's chest cavity, thereby improving the convenience of adsorbing the attached tube body 12 on the inner wall of the patient's chest cavity during the catheterization operation. In addition, in this embodiment, the air bag 30 can also prevent the drainage tube body 1 from accidentally falling out of the patient's body in the expanded state, ensuring the stability of the fixation of the drainage tube body 1.

[0078] In a further embodiment, the airbags 30 are arranged in a plurality along the length direction of the inner body section 2, and a pair of the inflation channels are arranged in the drainage tube body 1, which are connected to the airbags 30 at different positions. With this structural arrangement, in actual use, the airbags 30 at corresponding positions can be selected for expansion according to the length of the inner body section 2 extending into the chest cavity of the patient, thereby improving the practicality of the present invention in actual use.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle-proof thoracentesis and drainage device, characterized in that: The invention comprises a drainage tube body, wherein the drainage tube body comprises an internal section and an external section, wherein the internal section is used to extend into the chest cavity of the patient, wherein the internal section comprises an air guide tube body, a liquid guide tube body and an extension tube body, wherein the air guide tube body is arranged at the end of the internal section, and an air inlet hole is arranged on the air guide tube body. The liquid introduction tube body is arranged on a side close to the external section, the liquid introduction tube body is provided with a liquid inlet hole, and the extension tube body is arranged between the air introduction tube body and the liquid introduction tube body. The drainage tube body is provided with a liquid drainage channel and an air drainage channel, the air inlet is communicated with the air drainage channel, the liquid inlet is communicated with the liquid drainage channel, the liquid drainage channel is used to form a flow channel for draining the accumulated fluid in the patient's chest cavity out of the body, and the air drainage channel is used to form a flow channel for draining the accumulated air in the patient's chest cavity out of the body; The anti-drop needle type thoracentesis and drainage device also includes a negative pressure suction component, the internal segment also includes an attached tube body, the attached tube body is arranged between the air guide tube body and the extension tube body, the attached tube body is provided with a plurality of negative pressure holes, the drainage tube body is also provided with a negative pressure flow channel, the negative pressure holes are connected to the negative pressure flow channel, the external segment is provided with a negative pressure joint, the negative pressure joint is connected to the negative pressure flow channel, The negative pressure suction component is connected to the negative pressure connector. When the negative pressure suction component is in operation, it can generate negative pressure suction, so that the attached tube body can be adsorbed on the inner wall of the patient's chest cavity. When the attached tube body is adsorbed on the inner wall of the patient's chest cavity, the negative pressure hole is closed by the inner wall tissue of the patient's chest cavity. The attached tube body includes a deformation area and an adsorption area, the negative pressure hole is arranged on the adsorption area, the extension tube body is provided with a first guide hole, the external segment is provided with a second guide hole, the connecting line of the first guide hole and the second guide hole is parallel to the central axis of the drainage tube body, the first guide hole and the second guide hole both pass through the drainage channel, The drainage tube body is also provided with a pulling rope, which has a free end and a fixed end, and the fixed end of the pulling rope is connected to the attached tube body; the free end of the pulling rope passes through the first guide hole into the drainage channel and then passes through the second guide hole. After the internal segment is extended into the patient's chest cavity, the traction rope is pulled to be tightened, and the deformation zone is bent and deformed under the action of the pulling force of the traction rope, so that the adsorption zone can be close to the inner wall of the patient's chest cavity; The outer section is provided with a rotating component, the rotating component includes a first receiving tube, a second receiving tube and a rotating ring, the first receiving tube is communicated with the liquid introduction channel, the first receiving tube and the second receiving tube are arranged at intervals, the rotating ring is arranged between the first receiving tube and the second receiving tube, the rotating ring is threadedly connected with the first receiving tube and the second receiving tube, and the second guide hole is arranged on the rotating ring; When the pulling rope is in a taut state, the rotating ring is rotated clockwise or counterclockwise, so that the pulling rope in the liquid drainage channel forms a circular motion around the central axis of the liquid drainage channel; A first gasket high pipe is provided at a position of the inner wall of the extension tube body corresponding to the first guide hole, and a second gasket high pipe is provided at a position of the inner wall of the rotating ring corresponding to the second guide hole. The pulling rope passes through the first gasket high pipe and the second gasket high pipe. The first gasket high pipe cooperates with the second gasket high pipe so that the pulling rope can be separated from the inner wall of the liquid introduction channel in a tightened state. The second gasket tube is clamped on the side wall of the rotating ring, and the second gasket tube can slide in the diameter direction of the rotating ring; the second gasket tube and the rotating ring have a first matching form and a second matching form, in the first matching form, the second gasket tube is completely extended into the interior of the rotating ring; in the second matching form, the first gasket tube slides out from the interior of the rotating ring, and the end of the second gasket tube facing the central axis of the rotating ring is flush with the inner wall of the rotating ring.

2. The anti-drop needle type thoracentesis and drainage device according to claim 1, characterized in that: The air inlet hole is arranged at the end of the air duct body; the cross-sections of the attached tube body and the air duct body are arranged as a flat structure.

3. The anti-drop needle type thoracentesis and drainage device according to claim 2, characterized in that: The first receiving tube and the second receiving tube are provided with limit blocks, and the limit blocks are used to limit the number of circles that the rotating ring can rotate clockwise or counterclockwise to one circle.

4. The anti-drop needle type thoracentesis and drainage device according to claim 3, characterized in that: A wire winding groove is provided on the surface of the rotating ring, and the free end of the pulling rope can be wound and fixed in the wire winding groove, and the second guide hole is provided in the wire winding groove; the cross-sectional shape of the wire winding groove is set to be "V" shape.

5. The anti-drop needle type thoracentesis and drainage device according to claim 4, characterized in that: The free end of the pulling rope is also provided with a wire clip, and the wire clip can be clipped into the wire winding groove.

6. The anti-drop needle type thoracentesis and drainage device according to claim 1, characterized in that: An airbag is arranged on the inner section of the body, and an inflation flow channel connected to the airbag is also arranged in the drainage tube body. The airbag is arranged on the side of the inner section of the body away from the patient's chest cavity. When air is filled into the airbag, the airbag expands toward the side of the inner section of the body away from the patient's chest cavity, so that the airbag can abut against the patient's lungs, so that the attached tube body moves closer to the inner wall of the patient's chest cavity.

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