Adjustable chest drainage device

Abstract

The adjustable chest drainage device comprises an outer sheath tube and an adjusting assembly, a first air bag and a second air bag are arranged on the outer sheath tube, the distance between the first air bag and the second air bag in the inflated state ranges from 8 mm to 30 mm, and the first air bag and the second air bag are connected with air pumping mechanisms respectively; the adjusting assembly comprises a base, a knob and an alloy guide wire, the base is fixed to the outer sheath tube, the knob is rotationally connected to the base, a through mounting hole is formed in the knob, the inner end of the alloy guide wire penetrates through the mounting hole, and the outer end of the alloy guide wire is located in the outer sheath tube and connected with the inner wall of the outer sheath tube; wherein the knob is provided with a light-transmitting dial, a lamp bead is arranged in the knob to display an angle value on the dial, and a positioning mechanism is arranged between the knob and the base. Air is injected into the first air bag and the second air bag through the air pumping mechanism, the adjustable chest drainage device is fixed, the alloy guide wire is driven by the rotary knob to rotate, the directions of the alloy guide wire and the outer sheath tube are changed, and effusion is accurately drained.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an adjustable thoracic drainage device. Background Art

[0002] A drainage tube is a commonly used medical device in clinical surgery. For patients in the departments of thoracic surgery, respiratory medicine, and oncology who have pleural effusion, ascites, or pneumothorax, it is necessary to pass the drainage tube through an incision in the surgical area or body cavity of the human body and out of the body, so as to guide the pus, exuded blood, tissue fluid, and other fluids accumulated between human tissues or in the body cavity to the outside, prevent postoperative infection caused by fluid accumulation, and promote wound healing and recovery. However, the currently used drainage tubes rely on suture fixation, are prone to displacement, and have an infection risk; after the drainage tube is inserted, the angle cannot be adjusted, targeted drainage cannot be performed, and a second operation is required for adjustment, which causes secondary harm to the patient. Summary of the Invention

[0003] The present invention aims to solve the above technical problems. To this end, the present invention provides an adjustable thoracic drainage device, which is fixed by a double-airbag structure and can be adjusted in multiple directions to meet the requirements of precise drainage.

[0004] An adjustable thoracic drainage device according to the present invention includes an outer sheath tube and an adjustment assembly. A first airbag and a second airbag are provided on the outer sheath tube. The distance between the first airbag and the second airbag in the inflated state is 8 mm to 30 mm. The first airbag and the second airbag are respectively connected to a pumping mechanism; the adjustment assembly includes a base, a knob, and an alloy guide wire. The base is fixed to the outer sheath tube. The knob is rotatably connected to the base. The knob is provided with a through mounting hole. The inner end of the alloy guide wire passes through the mounting hole. The outer end of the alloy guide wire is located inside the outer sheath tube and is connected to the inner wall of the outer sheath tube; wherein, a scale disk is provided on the knob. The scale disk is a light-transmitting structure. The knob is internally provided with a lamp bead to display the angle value on the scale disk. A positioning mechanism is provided between the knob and the base.

[0005] The adjustable thoracic drainage device according to the embodiments of the present invention has at least the following beneficial effects:

[0006] In use, the outer sheath tube is inserted into the thoracic cavity through an incision. The first airbag is located inside the thoracic cavity, and the first airbag is located outside the human body. Then, air is injected into the first airbag and the second airbag through a pumping mechanism, causing the first airbag and the second airbag to expand. The adjustable thoracic drainage device is fixed by the first airbag and the second airbag, replacing the traditional suture fixation and eliminating the risk of displacement. The knob can drive the alloy guide wire to rotate, thereby changing the direction of the alloy guide wire and the outer sheath tube, which is beneficial to accurately drain the effusion. Moreover, the knob has a scale disk, and the angle value is displayed by a light, which is convenient for doctors to accurately control the direction, improve the operation efficiency, and relieve the pain of patients.

[0007] According to some embodiments of the present invention, the positioning mechanism includes a sliding pin. The base is provided with an inner circular hole, and the inner wall of the inner circular hole is provided with a plurality of circumferentially evenly distributed clamping grooves. The lower end of the knob is located in the inner circular hole and is provided with a radial sliding groove. The inner end of the sliding pin is located in the sliding groove, and the outer end of the sliding pin can be inserted into the clamping groove. A pre-tightening spring is arranged between the inner end of the sliding pin and the knob.

[0008] According to some embodiments of the present invention, the inner wall of the inner circular hole is provided with a plurality of circumferentially evenly distributed convex teeth, and a clamping groove is formed between two adjacent convex teeth. The outer end of the sliding pin is provided with a spherical shape.

[0009] According to some embodiments of the present invention, the knob is connected with a set screw, and the set screw is used to fix the alloy guide wire.

[0010] According to some embodiments of the present invention, a plurality of convex points are arranged on the outer wall of the airbag, and the plurality of convex points are arranged in an array on the outer wall of the airbag.

[0011] According to some embodiments of the present invention, a PTFE film or a polytetrafluoroethylene film is sleeved on the outer wall of the alloy guide wire, and a marking portion is formed at the outer end of the alloy guide wire, and the diameter of the marking portion is larger than the diameter of the alloy guide wire.

[0012] According to some embodiments of the present invention, an installation cavity is arranged inside the knob, and an angle adjustment mechanism is arranged in the installation cavity. The angle adjustment mechanism is used to drive the alloy guide wire to rotate to adjust the pointing angle of the outer sheath tube.

[0013] According to some embodiments of the present invention, the angle adjustment mechanism includes a first bevel gear, a second bevel gear and an adjustment knob. The first bevel gear has a bushing, and the alloy guide wire passes through the bushing and is fixedly connected to the bushing. The first bevel gear meshes with the second bevel gear, and the adjustment knob is fixed to the second bevel gear.

[0014] According to some embodiments of the present invention, the base is connected with a bending adjustment knob, and the bending adjustment knob is used to adjust the bending angle of the alloy guide wire.

[0015] According to some embodiments of the present invention, a cam is provided at the end of the bending adjustment knob, and the cam abuts against the alloy guide wire.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0018] Figure 1 is the front view of the adjustable thoracic drainage device according to the embodiment of the present invention;

[0019] Figure 2 is the structural schematic diagram of the adjustment assembly in the embodiment of the present invention;

[0020] Figure 3 is the cross-section of the adjustment assembly in the embodiment of the present invention Figure 1 ;

[0021] Figure 4 is the cross-section of the adjustment assembly in the embodiment of the present invention Figure 2 .

[0022] The reference numerals in the drawings are as follows:

[0023] Outer sheath tube 100, first airbag 110, second airbag 120, air pumping mechanism 130, adjustment assembly 200, base 210, inner round hole 211, card slot 212, knob 220, sliding groove 221, sliding pin 222, pre-tightening spring 223, installation cavity 224, first bevel gear 225, second bevel gear 226, adjustment knob 227, alloy guide wire 230, marking portion 231. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that when it comes to orientation descriptions, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution. In the description of the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] Referring to Figures 1 to 3 , a specific embodiment of an adjustable thoracic drainage device is proposed in the present invention, which is an innovative medical device designed to solve the deficiencies of traditional thoracic drainage devices in fixation and drainage direction control.

[0029] The adjustable thoracic drainage device mainly consists of two major parts: an outer sheath tube 100 and an adjustment component 200. The outer sheath tube 100 serves as the passage for the drainage tube. On the outer sheath tube 100, there are a first airbag 110 and a second airbag 120. When inflated, the first airbag 110 and the second airbag 120 can maintain a specific distance (8 mm to 30 mm, adjustable according to actual needs), which not only ensures effective fixation during use but also avoids problems such as unstable fixation or tissue compression caused by too close or too far a distance. The first airbag 110 and the second airbag 120 are respectively connected to independent air pumping mechanisms 130, enabling doctors to control the inflation states of the two airbags separately or simultaneously as needed to achieve a more precise fixation effect.

[0030] The adjustment component 200 is responsible for adjusting the direction of the outer sheath tube 100 to better adapt to the distribution of pleural effusion in the chest cavity. The adjustment component 200 includes a base 210, a knob 220, and an alloy guide wire 230. The base 210 serves as the fixed foundation of the entire adjustment component 200 and is fixed on the outer sheath tube 100, providing a stable platform for the rotation of the knob 220. The knob 220 is rotatably connected to the base 210 and has a through mounting hole. The inner end of the alloy guide wire 230 passes through this mounting hole, and the outer end is located inside the outer sheath tube 100 and is connected to the inner wall of the outer sheath tube 100. By rotating the knob 220, the alloy guide wire 230 can be driven to rotate, thereby changing the direction of the outer sheath tube 100 to achieve precise drainage.

[0031] The outer sheath tube 100 is made of a medical-grade polymer material, having good biocompatibility and mechanical properties. Its outer diameter is designed to be an appropriate size according to clinical needs to ensure smooth insertion into the chest cavity and reduce damage to the patient's tissues. The first airbag 110 and the second airbag 120 provided on the outer sheath tube 100 are made of materials with good elasticity (such as silicone, rubber), having excellent expansion performance and sealing properties. When air is injected into the airbags through the air pumping mechanisms 130, the airbags can quickly expand and closely adhere to the inner wall of the chest cavity, forming a stable fixation structure. Moreover, the second airbag 120 closely adheres to the skin, which can also prevent gas from discharging into the subcutaneous tissue through the puncture hole, reducing the incidence of subcutaneous emphysema of traditional drainage tubes.

[0032] The distance between the first airbag 110 and the second airbag 120 in the inflated state can be adjusted between 8 mm and 30 mm, fully considering the chest cavity structures and the distribution of pleural effusion of different patients. In practical applications, doctors can adjust the inflation volume and distance of the airbags according to the specific conditions of the patients to achieve the best fixation effect.

[0033] The air pumping mechanism 130 can adopt a manual air bag or a micro air pump, which can accurately control the inflation volume and pressure of the air bag. The micro air pump has functions of pressure maintenance and pressure detection. Doctors can set the required inflation volume and pressure value through the operation interface, and the micro air pump will automatically adjust and maintain the inflation state of the air bag. In addition, the pressure detection function also has an anti-air leakage function. When air leakage occurs, an alarm will be issued to prompt the doctor to handle it.

[0034] The base 210 of the adjustment component 200 is made of high-strength materials, having good mechanical properties and stability. Its shape is designed as an arc structure matching the outer sheath tube 100, so as to better fit the outer sheath tube 100 and fix the knob 220. A rotating shaft and a positioning hole matching the knob 220 are arranged on the base 210, and the knob 220 can rotate smoothly and be maintained at the required position through interference fit or other structures.

[0035] As the core component of the adjustment component 200, the knob 220 is designed with full consideration of doctors' usage habits and operation convenience. Anti-slip patterns are arranged on the surface of the knob 220, increasing the friction force during doctors' operation and avoiding misoperation caused by slippery hands.

[0036] In order to facilitate doctors to accurately control the direction of the outer sheath tube 100, a scale disk is also arranged on the knob 220. Clear scale lines are marked on the scale disk. Doctors can accurately adjust the rotation angle of the knob 220 according to needs. The scale disk is a light-transmitting structure, and the knob 220 is internally provided with lamp beads to display the angle value on the scale disk, which is convenient for doctors to observe and accurately control the direction of the outer sheath tube 100 for accurate drainage.

[0037] As one of the key components of the adjustment component 200, the alloy guide wire 230 has excellent mechanical strength and can keep the direction of the outer sheath tube 100 stable. For example, nitinol alloy is selected. The outer end of the alloy guide wire 230 is connected to the inner wall of the outer sheath tube 100. By rotating the knob 220, the alloy guide wire 230 and the outer sheath tube 100 are driven to rotate together to achieve accurate drainage.

[0038] When using the adjustable thoracic drainage device of this embodiment, first, the outer sheath tube 100 needs to be inserted into the thoracic cavity from the incision. During the insertion process, the first air bag 110 and the second air bag 120 are in an uninflated state, and the outer sheath tube 100 can smoothly pass through the thoracic wall. When the outer sheath tube 100 reaches the designated position, the first air bag 110 is located inside the thoracic cavity, and the second air bag 120 is located outside the human body. Air is injected into the first air bag 110 and the second air bag 120 through the air pumping mechanism 130 to make them expand and closely fit the human body, forming stable fixed points.

[0039] Next, insert the drainage tube into the outer sheath tube 100 to start draining the effusion. During the drainage process, the doctor can adjust the direction of the alloy guide wire 230 by turning the knob 220, thereby changing the direction of the drainage tube. The scale on the knob 220 can help the doctor accurately control the rotation angle of the alloy guide wire 230 to ensure that the drainage tube can accurately align with the effusion location.

[0040] Compared with traditional drainage tubes, the adjustable thoracic drainage device of this embodiment has the following significant advantages:

[0041] 1. Double-balloon fixation structure: By inflating and expanding the first balloon 110 and the second balloon 120, stable fixation points are formed, effectively preventing the displacement of the outer sheath tube 100 and eliminating problems such as displacement, infection, and pain caused by traditional suture fixation.

[0042] 2. Precise control of the drainage point: By turning the knob 220 to drive the alloy guide wire 230 to change the direction, precise control of the drainage direction can be achieved, improving the drainage efficiency.

[0043] 3. Simple operation: The scale and positioning mechanism on the knob 220 enable the doctor to accurately control the direction of the alloy guide wire 230 during operation, improving the operation efficiency and reducing the pain of the patient.

[0044] Taking a thoracic effusion drainage operation as an example, the usage process of the adjustable thoracic drainage device is described in detail:

[0045] Preoperative preparation: The doctor selects the appropriate size of the outer sheath tube 100 and the length of the alloy guide wire 230 according to the specific situation of the patient. Connect the outer sheath tube 100 to the air pump mechanism 130 and check the working status of the air pump mechanism 130.

[0046] Insert the outer sheath tube 100: Under local anesthesia, the doctor inserts the outer sheath tube 100 into the chest cavity through the incision. During the insertion process, the first balloon 110 and the second balloon 120 are in the non-inflated state.

[0047] Fix the outer sheath tube 100: When the outer sheath tube 100 reaches the designated position, inject air into the first balloon 110 and the second balloon 120 through the air pump mechanism 130 to make them expand and closely fit the human body. At this time, the outer sheath tube 100 is firmly fixed.

[0048] Insert the drainage tube: Insert the drainage tube into the outer sheath tube 100 to start draining the effusion. During the drainage process, the doctor can turn the knob 220 as needed to adjust the direction of the alloy guide wire 230, thereby changing the direction of the drainage tube.

[0049] Monitoring and adjustment: During the drainage process, the doctor needs to closely monitor the patient's vital signs and the drainage situation. Adjust the inflation volume of the air pumping mechanism 130 and the direction of the alloy guide wire 230 as needed to ensure the drainage effect.

[0050] Post-operative treatment: When the drainage is completed, the doctor pumps out the air in the first airbag 110 and the second airbag 120 through the air pumping mechanism 130 to restore them to the uninflated state. Then gently pull out the outer sheath tube 100 and the drainage tube, and disinfect and dress the incision.

[0051] By using the adjustable thoracic drainage device of the present application, the doctor can more precisely control the drainage direction, improve the drainage efficiency, and relieve the patient's pain. At the same time, the double-airbag fixation structure also effectively prevents the displacement of the outer sheath tube 100 and improves the safety of the operation.

[0052] Refer to Figure 3 , in some embodiments of the present application, the base 210 is provided with an inner round hole 211, which is the basis for the installation and rotation of the knob 220. A plurality of circumferentially evenly distributed card slots 212 are provided on the inner wall of the inner round hole 211, providing an accurate reference for the positioning of the knob 220. The lower end of the knob 220 is located in the inner round hole 211 and is provided with a radial sliding groove 221. The inner end of the sliding pin 222 is placed in the sliding groove 221 and can slide flexibly in the sliding groove 221. The outer end of the sliding pin 222 is designed to be able to insert into the card slot 212. When the outer end of the sliding pin 222 inserts into the card slot 212, the positioning between the knob 220 and the base 210 is achieved.

[0053] In order to enable the sliding pin 222 to always remain inserted into the card slot 212, a pre-tightening spring 223 is arranged between the inner end of the sliding pin 222 and the knob 220. The pre-tightening spring 223 is in a compressed state, giving the sliding pin 222 an outward force, so that the outer end of the sliding pin 222 tightly abuts against the inner wall of the card slot 212. When it is necessary to rotate the knob 220, just hold the knob 220 and apply a rotational force to overcome the elastic force of the pre-tightening spring 223, so that the outer end of the sliding pin 222 disengages from the card slot 212, and the rotation of the knob 220 can be realized. When rotated to the appropriate position, the sliding pin 222 inserts into the card slot 212 again under the action of the pre-tightening spring 223 to complete the positioning. This positioning method has a simple and reliable structure and can effectively prevent the knob 220 from accidentally rotating during use.

[0054] Furthermore, a plurality of circumferentially evenly distributed convex teeth are provided on the inner wall of the inner round hole 211, and a card slot 212 is formed between two adjacent convex teeth. The outer end of the sliding pin 222 is provided with a spherical structure. The spherical sliding pin 222 is engaged with the card slot 212 formed by the convex teeth, which has many advantages. When the knob 220 is rotated, the spherical sliding pin 222 can move more smoothly between the card slots 212, reducing friction and wear. At the same time, the spherical sliding pin 222 can better adapt to the shape change of the card slot 212. No matter what angle the knob 220 is in, it can ensure the tight fit between the sliding pin 222 and the card slot 212, improving the positioning accuracy and stability. In addition, the design of the spherical sliding pin 222 also makes the sliding pin 222 more flexible during the sliding process, reducing the occurrence of jamming phenomena.

[0055] The knob 220 is an important operating component of this device, and its connection and fixation method with the alloy guide wire 230 directly affect the use effect of the device. The knob 220 is connected with a set screw, and the function of the set screw is to fix the alloy guide wire 230. When installing the alloy guide wire 230, first pass the alloy guide wire 230 through the installation hole of the knob 220 to ensure the accurate position of the alloy guide wire 230. Then, tighten the set screw so that the end of the set screw tightly presses on the alloy guide wire 230, which is convenient for installation and disassembly. When it is necessary to replace or adjust the alloy guide wire 230, just loosen the set screw, and then the alloy guide wire 230 can be easily taken out for replacement.

[0056] It can be understood that the airbag is an important component in contact with the patient of this device, and its design directly affects the drainage effect and the comfort of the patient. In some embodiments, a plurality of convex points are provided on the outer wall of the airbag, and these convex points are arranged in an array on the outer wall of the airbag, and the height of the convex points is 0.1 mm to 0.3 mm. When the airbag contacts the patient, the convex points can increase the friction between the airbag and the human body, prevent the airbag from sliding in the thoracic cavity, and improve the stability of the device.

[0057] The alloy guide wire 230 is one of the core components of this device, and its performance directly affects the use effect of the device. In order to further improve the performance of the alloy guide wire 230, a PTFE film or a polytetrafluoroethylene film is sleeved on its outer wall. The PTFE film has excellent lubricity, corrosion resistance and biocompatibility, and has a small friction coefficient and will not damage the outer sheath 100.

[0058] Refer to Figure 2, a marking portion 231 is formed at the outer end of the alloy guide wire 230, and the diameter of the marking portion 231 is greater than that of the alloy guide wire 230. The function of the marking portion 231 is to clearly display the position of the alloy guide wire 230 under imaging devices such as X-rays, facilitating accurate operation and positioning by doctors. During the operation, doctors can observe the position of the marking portion 231 in real time through the imaging device to ensure that the alloy guide wire 230 accurately reaches the target position, improving the safety and accuracy of the operation.

[0059] The adjustment assembly 200 further has an angle adjustment mechanism. An installation cavity 224 is provided inside the knob 220, and the angle adjustment mechanism is arranged in the installation cavity 224. The function of the angle adjustment mechanism is to drive the alloy guide wire 230 to rotate. Since the alloy guide wire 230 is bent, the pointing angle of the outer sheath tube 100 can be adjusted by 360°.

[0060] Refer to Figure 4 , in some embodiments of the present application, the angle adjustment mechanism includes a first bevel gear 225, a second bevel gear 226, and an adjustment knob 227. The first bevel gear 225 has a bushing, and the alloy guide wire 230 passes through the bushing and is fixedly connected to the bushing (such as interference fit, glue bonding). The first bevel gear 225 meshes with the second bevel gear 226, and the adjustment knob 227 is fixed to the second bevel gear 226.

[0061] When the adjustment knob 227 is rotated, the second bevel gear 226 rotates accordingly, driving the first bevel gear 225 to rotate. Since the alloy guide wire 230 is fixedly connected to the bushing of the first bevel gear 225, the rotation of the first bevel gear 225 will drive the bushing and the alloy guide wire 230 to rotate together, thereby realizing the adjustment of the pointing angle of the outer sheath tube 100.

[0062] The above-mentioned angle adjustment mechanism has the advantages of high precision, convenient operation, and compact structure. The meshing transmission of the bevel gears has a high transmission precision, which can accurately control the rotation angle of the alloy guide wire 230 and realize the precise adjustment of the pointing angle of the outer sheath tube 100. The adjustment knob 227 is installed outside the knob 220 and has anti-slip threads. Doctors can easily realize angle adjustment by rotating the adjustment knob 227, and the operation is simple and convenient.

[0063] In other embodiments, a worm and worm gear are used instead of bevel gears, and the rotation angle of the alloy guide wire 230 can also be accurately controlled.

[0064] In some embodiments of the present application, the base 210 is connected with a bending adjustment knob, and the bending adjustment knob is used to adjust the bending angle of the alloy guide wire 230. A cam is provided at the end of the bending adjustment knob, and the cam abuts against the alloy guide wire 230. When the bending adjustment knob is rotated, the cam rotates accordingly, and the contour of the cam will squeeze the alloy guide wire 230, causing the alloy guide wire 230 to bend. By controlling the rotation angle of the bending adjustment knob, the bending angle of the alloy guide wire 230 can be accurately adjusted, so as to drive the outer sheath tube 100 to point to the accurate drainage position.

[0065] The adjustable thoracic drainage device has various adjustment capabilities, such as flexible adjustment, large adjustment range and good stability. Doctors can adjust the plane angle, rotation angle and bending angle of the alloy guide wire 230 at any time according to the actual situation, and the operation is flexible and convenient.

[0066] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. An adjustable chest drainage device, characterized in that: include: An outer sheath tube, wherein a first airbag and a second airbag are arranged on the outer sheath tube, the distance between the first airbag and the second airbag in an inflated state is 8 mm to 30 mm, and the first airbag and the second airbag are respectively connected to an air pump mechanism; An adjustment component, comprising a base, a knob and an alloy guide wire, wherein the base is fixed to the outer sheath tube, the knob is rotatably connected to the base, the knob is provided with a penetrating mounting hole, the inner end of the alloy guide wire is passed through the mounting hole, the outer end of the alloy guide wire is located inside the outer sheath tube and connected to the inner wall of the outer sheath tube; Among them, a dial is arranged on the knob, the dial is a light-transmitting structure, a lamp bead is built into the knob to display the angle value on the dial, and a positioning mechanism is arranged between the knob and the base.

2. The adjustable chest drainage device according to claim 1, characterized in that: The positioning mechanism includes a sliding pin, the base is provided with an inner circular hole, the inner wall of the inner circular hole is provided with a plurality of circumferentially evenly distributed grooves, the lower end of the knob is located in the inner circular hole and is provided with a radial sliding groove, the inner end of the sliding pin is located in the sliding groove, the outer end of the sliding pin can be inserted into the groove, and a preload spring is arranged between the inner end of the sliding pin and the knob.

3. The adjustable chest drainage device according to claim 2, characterized in that: The inner wall of the inner circular hole is provided with a plurality of convex teeth uniformly distributed in the circumferential direction, the clamping groove is formed between two adjacent convex teeth, and the outer end of the sliding pin is provided with a spherical shape.

4. The adjustable chest drainage device according to claim 1 or 2, characterized in that: The knob is connected with a set screw, and the set screw is used to fix the alloy guide wire.

5. The adjustable chest drainage device according to claim 1, characterized in that: The outer wall of the airbag is provided with a plurality of convex points, and the plurality of convex points are distributed in an array on the outer wall of the airbag.

6. The adjustable chest drainage device according to claim 1, characterized in that: The outer wall of the alloy guide wire is sheathed with a PTFE film or a polytetrafluoroethylene film, and a marking portion is formed at the outer end of the alloy guide wire, and the diameter of the marking portion is greater than the diameter of the alloy guide wire.

7. The adjustable chest drainage device according to claim 1, characterized in that: An installation cavity is provided inside the knob, and an angle adjustment mechanism is arranged in the installation cavity. The angle adjustment mechanism is used to drive the alloy guide wire to rotate so as to adjust the pointing angle of the outer sheath tube.

8. The adjustable chest drainage device according to claim 7, characterized in that: The angle adjustment mechanism includes a first bevel gear, a second bevel gear and an adjustment button, the first bevel gear has a shaft sleeve, the alloy guide wire passes through the shaft sleeve and is fixedly connected to the shaft sleeve, the first bevel gear is meshed with the second bevel gear, and the adjustment button is fixed to the second bevel gear.

9. The adjustable chest drainage device according to claim 1, characterized in that: The base is connected with a bending adjustment button, and the bending adjustment button is used to adjust the bending angle of the alloy guide wire.

10. The adjustable chest drainage device according to claim 9, characterized in that: A cam is arranged at the end of the bending adjustment button, and the cam abuts against the alloy guide wire.

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