Minimally invasive closed drainage device for pneumothorax
By designing a minimally invasive closed drainage device dedicated to pneumothorax, using components such as puncture hard sleeves, casing cores and stabilization mechanisms, minimally invasive pneumothorax gas drainage is achieved, solving the problems of large skin incisions, large operating damage and poor stability of drainage bottles in the existing methods, and improving the safety and efficiency of treatment.
Patent Information
- Application Number
- CN202510239931.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2045-03-03
AI Technical Summary
The existing pneumothoracic air drainage methods have problems such as large skin incision, large operational damage, high patient pain, and poor drainage bottle stability, resulting in high operation difficulty, low efficiency and poor safety.
A minimally invasive closed drainage device specially designed for pneumothorax is designed, including a puncture hard sleeve, a casing core, a limiting mechanism, a first stabilization mechanism, a second stabilization mechanism, an early warning mechanism and a positioning mechanism. Through the coordinated work of these components, the fixation of the minimally invasive drainage and the stable drainage bottle is achieved.
The device performs pneumothoracic gas drainage through minimally invasive methods, which reduces the patient's treatment damage and pain, reduces the difficulty of operation of the doctor, improves the convenience and efficiency of the drainage device, and ensures the safety and reliability of the drainage through the stabilization mechanism and early warning mechanism.
Smart Images
Figure CN119792675B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of clinical medical devices, and particularly relates to a minimally invasive closed drainage device dedicated to pneumothorax. Background Art
[0002] Currently, the treatment method for draining pneumothorax gas is to take the 2nd intercostal space outside the midclavicular line or the 4th - 5th intercostal space at the anterior axillary line. Under local anesthesia, a 1.5 - 2 cm skin incision is made parallel to the upper edge of the rib. A trocar is punctured into the pleural cavity, the trocar core is removed, and a sterilized rubber tube is inserted into the chest cavity through the trocar. However, since there is currently no drainage catheter dedicated to pneumothorax, generally a large - sized urinary catheter or silicone tube is selected clinically. The front end is cut into a duck - bill - shaped opening, and several side holes are cut for drainage. Another existing method is that after cutting the skin, the intercostal tissue is bluntly dissected to reach the pleura, and then the pleura is punctured and the catheter is directly sent into the pleural cavity for drainage, so as to guide out the gas and fluid accumulated in the pneumothorax. Moreover, the fluid drained by the above - mentioned drainage tube will be temporarily stored in the drainage bottle.
[0003] Due to these above - mentioned methods, the skin incision is large, and a large - sized trocar or hemostatic forceps is needed to expand the chest muscles and separate the subcutaneous muscle tissue to the pleural cavity for the insertion of the catheter. However, this operation process causes greater damage to the patient, and at the same time, it will cause greater pain to the patient during clinical operation. And the patient will shout or wriggle due to pain, which inevitably increases the operation difficulty of the doctor and affects the convenience and efficiency of installing the pneumothorax gas drainage device.
[0004] Secondly, most of the drainage bottles of the current pneumothorax gas drainage device are directly placed on the ground, which makes the stability of the drainage bottle poor. When the patient turns over in the hospital bed, it will drive the posture of the drainage tube to change, and then cause the drainage bottle placed on the ground to fall. Moreover, when the patient gets out of bed for activities, in order to ensure the drainage effect of the drainage bottle, the height of the drainage bottle should not exceed the patient's knees. This leads to the patient having to lift the drainage bottle by himself when getting out of bed. At this time, the suspended drainage bottle is easily interfered by the patient's walking and is very likely to separate from the drainage tube, thus affecting the existing drainage effect and causing the sealing failure of the drainage system, resulting in external air entering the patient's chest cavity and triggering an infection situation. This not only affects the drainage effect of pneumothorax gas but also affects the safety of the patient's pneumothorax gas drainage.
[0005] Therefore, we propose a minimally invasive closed drainage device dedicated to pneumothorax to solve the above problems. Summary of the Invention
[0006] The purpose of the present invention is to provide a minimally invasive closed drainage device dedicated to pneumothorax for the above problems.
[0007] To achieve the above object, the present invention adopts the following technical solutions: A minimally invasive closed drainage device for pneumothorax, including a puncture hard sleeve, the bottom end of the puncture hard sleeve is fixedly connected with a hollow connector, a sleeve core is movably sleeved on the inner walls of the puncture hard sleeve and the hollow connector, the connecting end of the hollow connector is hermetically connected with a drainage tube, the bottom end of the drainage tube is hermetically sleeved with a drainage bottle, and a limiting mechanism is movably sleeved on the outer wall of the puncture hard sleeve;
[0008] A first stabilizing mechanism is movably sleeved on the tube wall of the drainage tube;
[0009] A second stabilizing mechanism is movably sleeved on the outer wall of the drainage bottle.
[0010] In the above minimally invasive closed drainage device for pneumothorax, the limiting mechanism includes an internal thread ring and a rubber ring piece that are movably sleeved on the outer wall of the puncture hard sleeve, an external thread ring that is fixedly connected to the outside of the rubber ring piece and is matched with the internal thread ring, and an annular sealing rubber that is fixedly connected to the inner wall of the internal thread ring.
[0011] In the above minimally invasive closed drainage device for pneumothorax, the first stabilizing mechanism includes a rubber sleeve that is movably sleeved on the outer wall of the drainage tube, a connecting ring that is fixedly connected to the outer wall of the rubber sleeve, an elastic cloth belt that is movably connected to the inner side wall of the connecting ring, and needle hair magic patches and cotton hair magic patches that are fixedly connected to the outer walls of both sides of the elastic cloth belt and are matched with each other.
[0012] In the above minimally invasive closed drainage device for pneumothorax, the second stabilizing mechanism includes a rubber frame that is movably connected to the outer wall of the drainage bottle, a connecting frame that is fixedly sleeved on the outer wall of the rubber frame, a U-shaped insulating frame that is fixedly connected to the bottom end of the connecting frame, a moving plate that is movably sleeved on the two vertical parts of the U-shaped insulating frame, two rectangular through holes that are opened on the outer wall of the moving plate and are matched with the vertical parts of the U-shaped insulating frame, a warning mechanism that is fixedly connected to the bottom end of the U-shaped insulating frame for monitoring the inclination or overweight state of the drainage bottle, extension rods that are fixedly connected to the outer walls of both ends of the U-shaped insulating frame, rolling bearings that are fixedly sleeved on the rod walls of the extension rods, an insulating positioning cylinder that is sleeved on the outer rings of the two rolling bearings, and a positioning mechanism that is fixedly connected to the bottom outer wall of the insulating positioning cylinder.
[0013] In the above minimally invasive closed drainage device for pneumothorax, the warning mechanism includes a pressure sensor, a lithium battery module, and a buzzer that are fixedly connected to the bottom outer wall of the U-shaped insulating frame, the top force-receiving end of the pressure sensor contacts the lower surface of the moving plate, an installation hole is opened at the bottom end of the U-shaped insulating frame, and a micro PLC controller is fixedly connected to the hole wall of the installation hole. A conductive rod is fixedly connected to the lower surface of the U-shaped insulating frame, a conductive cylinder is fixedly connected to the inner wall of the insulating positioning cylinder, and the bottom end of the conductive rod is located at the central axis position of the conductive cylinder.
[0014] In the above-mentioned minimally invasive closed drainage device for pneumothorax, the positioning mechanism includes an annular cover fixedly connected to the inner wall of the bottom end of the insulating positioning cylinder. The lower surface of the insulating positioning cylinder is fixedly communicated with a plurality of negative pressure suction cups. The air guide ends of the plurality of negative pressure suction cups all pass through the inner wall of the insulating positioning cylinder and are located inside the annular cover. The top end of the annular cover is fixedly communicated with a control valve. The upper surface of the annular cover is fixedly connected with a micro air pump. The air inlet end of the micro air pump is fixedly communicated with the top end of the control valve through a connecting pipe. The outer wall of the insulating positioning cylinder is fixedly connected with a connecting piece. Two rope holes are formed in the outer wall of the connecting piece. The outer wall of the insulating positioning cylinder is fixedly connected with two connecting ropes matching the rope holes.
[0015] In the above-mentioned minimally invasive closed drainage device for pneumothorax, a puncture tip is provided at the top end of the cannula core, and a puncture chamfer is provided at the top end of the puncture hard cannula.
[0016] In the above-mentioned minimally invasive closed drainage device for pneumothorax, an adhesive glue layer is coated on one side of the rubber ring piece away from the external thread ring, and a release paper protective layer is connected to the outside of the adhesive glue layer.
[0017] Compared with the existing technology, the advantages of the minimally invasive closed drainage device for pneumothorax are as follows:
[0018] By providing the puncture hard cannula, the cannula core and the limiting mechanism, when a pneumothorax patient needs to puncture and drain the accumulated gas in the chest, first insert the cannula core into the inside of the puncture hard cannula to improve the structural strength of the puncture hard cannula. Moreover, due to the assistance of the puncture tip of the cannula core, the puncture effect of the puncture hard cannula can be improved. Finally, the cannula core carries the puncture hard cannula and inserts it into the accumulated gas in the chest of the pneumothorax patient. Then, the cannula core is withdrawn, and at the same time, the drainage tube is communicated with the puncture hard cannula through the hollow connecting head. The bottom of the drainage tube is communicated with the drainage bottle, so that the puncture hard cannula can drain the accumulated gas and fluid in the chest of the pneumothorax patient into the drainage bottle, and the stability of the puncture hard cannula is ensured through the limiting mechanism. This method for draining the accumulated gas in the chest of the pneumothorax patient adopts a minimally invasive method, without large-scale incision of the patient's skin, reducing the patient's treatment injury. At the same time, it reduces the pain of the pneumothorax patient during puncture and drainage of the accumulated gas, avoids the patient screaming or wriggling due to pain, reduces the operation difficulty of the doctor, and improves the convenience and efficiency of the installation of the pneumothorax accumulated gas drainage device.
[0019] By providing the first stabilizing mechanism, when a pneumothorax patient is draining the accumulated gas in the chest, the two ends of the elastic cloth belt are wound around the waist of the pneumothorax patient and fixed through the needle hair magic patch and the cotton hair magic patch. Moreover, the cooperation between the elastic cloth belt and the rubber sleeve can limit the middle part of the drainage tube, avoid the shaking of the drainage tube from causing adverse interference to the puncture hard cannula, and try to ensure the stable position of the puncture hard cannula, thereby improving the reliability of draining the accumulated gas in the chest of the pneumothorax patient.
[0020] Through the second stabilizing mechanism, warning mechanism and positioning mechanism provided, when a pneumothorax patient discharges the accumulated air in the chest on the hospital bed, at this time, the drainage bottle is placed on the floor beside the hospital bed. Then, the insulating positioning cylinder is stably arranged through the positioning mechanism. If the body position of the pneumothorax patient changes too quickly or greatly on the hospital bed, the first stabilizing mechanism will pull the drainage bottle through the drainage tube. The drainage bottle will deflect on the U-shaped frame, and the buzzer in the warning mechanism will be triggered to sound an alarm, reminding the pneumothorax patient that the movement amplitude is too large, which is likely to cause the sealing connection between the drainage tube and the drainage bottle to fail. If the pneumothorax patient needs to get out of bed and walk, at this time, the insulating positioning cylinder is fixed to the patient's ankle through the connecting piece, rope hole and connecting rope. Then, the patient does not need to lift the drainage tube and the drainage bottle, and the warning mechanism can also monitor the external force acting on the drainage tube in real time, avoiding the sealing failure of the connection between the drainage tube and the drainage bottle due to external force pulling, and avoiding the infection caused by external air invading the chest cavity of the pneumothorax patient. This mechanism enables the minimally invasive closed drainage device for pneumothorax to not only have the function of warning the sealing failure of the connection between the drainage tube and the drainage bottle, but also have the function of improving the use stability of the device, thereby effectively improving the effect and reliability of pneumothorax air drainage, and improving the safety of pneumothorax air drainage for patients.
[0021] Through the moving plate and pressure sensor provided, as the amount of accumulated fluid discharged with the accumulated air in the drainage bottle gradually increases, the weight of the drainage bottle also gradually increases. The pressure sensor can also detect the weight of the drainage bottle in real time and send the detection result to the micro PLC controller in the form of an electrical signal. If the pressure sensor detects that the weight of the drainage bottle exceeds the warning threshold preset by the micro PLC controller, the micro PLC controller timely controls the buzzer to sound a warning, reminding the medical staff to replace a new drainage bottle in time, avoiding the adverse interference caused by excessive accumulated fluid in the drainage bottle to the discharge of chest fluid of the pneumothorax patient. This mechanism enables the minimally invasive closed drainage device for pneumothorax to have the function of warning the excessive amount of accumulated fluid in the drainage bottle, thereby improving the reliability of the use of the minimally invasive closed drainage device for pneumothorax. Description of the Drawings
[0022] Figure 1 is the structural schematic diagram of the minimally invasive closed drainage device for pneumothorax provided by the present invention;
[0023] Figure 2 is the structural schematic diagram of the cannula core part in the minimally invasive closed drainage device for pneumothorax provided by the present invention;
[0024] Figure 3 is the structural schematic diagram of the limiting mechanism in the minimally invasive closed drainage device for pneumothorax provided by the present invention;
[0025] Figure 4 is Figure 3 the structural schematic diagram of part A in
[0026] Figure 5 It is a schematic structural view of the second stabilizing mechanism part in the minimally invasive closed drainage device dedicated to pneumothorax provided by the present invention;
[0027] Figure 6 is Figure 5 a schematic structural view of part B in
[0028] In the figure: 1 puncture hard sleeve, 2 hollow connector, 3 cannula core, 4 drainage tube, 5 limiting mechanism, 51 internal thread ring, 52 rubber ring piece, 53 annular sealing rubber, 54 external thread ring, 6 first stabilizing mechanism, 61 rubber sleeve, 62 connecting ring, 63 elastic cloth belt, 64 needle and wool magic patch, 65 cotton and wool magic patch, 7 second stabilizing mechanism, 71 rubber frame, 72 connecting frame, 73 U-shaped insulating frame, 74 moving plate, 75 extension rod, 76 rolling bearing, 77 insulating positioning cylinder, 8 warning mechanism, 81 pressure sensor, 82 lithium battery module, 83 buzzer, 84 micro PLC controller, 85 conductive rod, 86 conductive cylinder, 9 positioning mechanism, 91 annular cover, 92 negative pressure suction cup, 93 control valve, 94 micro air pump, 95 connecting piece, 96 rope hole, 97 connecting rope, 10 drainage bottle, 11 adhesive glue layer, 12 release paper protective layer. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0030] Such as Figures 1-6As shown in the figure, a minimally invasive closed drainage device for pneumothorax includes a puncture hard sleeve 1. The bottom end of the puncture hard sleeve 1 is fixedly connected to a hollow connector 2. A sleeve core 3 is movably sleeved on the inner walls of the puncture hard sleeve 1 and the hollow connector 2. A puncture tip is provided at the top end of the sleeve core 3, and a puncture chamfer is provided at the top end of the puncture hard sleeve 1, which can improve the puncture effect and reliability of the puncture hard sleeve 1 and the sleeve core 3. The connecting end of the hollow connector 2 is hermetically connected to a drainage tube 4. The bottom end of the drainage tube 4 is hermetically sleeved with a drainage bottle 10. A limiting mechanism 5 is movably sleeved on the outer wall of the puncture hard sleeve 1. The limiting mechanism 5 includes an internal thread ring 51 and a rubber ring piece 52 that are movably sleeved on the outer wall of the puncture hard sleeve 1. An adhesive glue layer 11 is coated on the side of the rubber ring piece 52 away from the external thread ring 54, and a release paper protective layer 12 is connected to the outside of the adhesive glue layer 11. The adhesive glue layer 11 can improve the connection stability between the puncture hard sleeve 1 and the pneumothorax patient. An external thread ring 54 that cooperates with the internal thread ring 51 is fixedly connected to the outside of the rubber ring piece 52. An annular sealing rubber 53 is fixedly connected to the inner wall of the internal thread ring 51. The annular sealing rubber 53 can not only ensure the stable arrangement of the puncture hard sleeve 1, but also ensure the protection effect of the puncture site. If the internal thread ring 51 is opened, the puncture position of the pneumothorax patient can be conveniently sprayed with anti-inflammatory liquid through the external thread ring 54 to ensure the health of the puncture position of the pneumothorax patient.
[0031] A first stabilizing mechanism 6 is movably sleeved on the tube wall of the drainage tube 4. The first stabilizing mechanism 6 includes a rubber sleeve 61 that is movably sleeved on the outer wall of the drainage tube 4. A connecting ring 62 is fixedly connected to the outer wall of the rubber sleeve 61. An elastic cloth belt 63 is movably connected to the inner side wall of the connecting ring 62. Needle hair magic patches 64 and cotton hair magic patches 65 that cooperate with each other are fixedly connected to the outer side walls of both sides of the elastic cloth belt 63. This mechanism can effectively improve the stability of the drainage tube 4 during use, thereby ensuring the sealing performance of the connection at both ends of the drainage tube 4.
[0032] A second stabilizing mechanism 7 is movably sleeved on the outer wall of the drainage bottle 10. The second stabilizing mechanism 7 includes a rubber frame 71 movably connected to the outer wall of the drainage bottle 10. A connecting frame 72 is fixedly sleeved on the outer wall of the rubber frame 71. The bottom end of the connecting frame 72 is fixedly connected to a U-shaped insulating frame 73. A moving plate 74 is movably sleeved on the two vertical parts of the U-shaped insulating frame 73. Two rectangular through holes matching the vertical parts of the U-shaped insulating frame 73 are formed in the outer wall of the moving plate 74. A warning mechanism 8 for monitoring the tilting or overweight state of the drainage bottle 10 is fixedly connected to the bottom end of the U-shaped insulating frame 73. The warning mechanism 8 includes a pressure sensor 81, a lithium battery module 82 and a buzzer 83 fixedly connected to the outer wall of the bottom end of the U-shaped insulating frame 73. The top stress end of the pressure sensor 81 contacts the lower surface of the moving plate 74. An installation hole is formed in the bottom end of the U-shaped insulating frame 73, and a micro PLC controller 84 is fixedly connected to the hole wall of the installation hole. A conductive rod 85 is fixedly connected to the lower surface of the U-shaped insulating frame 73. A conductive cylinder 86 is fixedly connected to the inner wall of the insulating positioning cylinder 77. The bottom end of the conductive rod 85 is located on the central axis position of the conductive cylinder 86. This mechanism enables the minimally invasive closed drainage device for pneumothorax to have the function of warning when the liquid accumulation in the drainage bottle 10 is excessive, thereby improving the reliability of the minimally invasive closed drainage device for pneumothorax. Extension rods 75 are fixedly connected to the outer walls of both ends of the U-shaped insulating frame 73. A rolling bearing 76 is fixedly sleeved on the rod wall of the extension rod 75. The outer ring walls of the two rolling bearings 76 are jointly sleeved with an insulating positioning cylinder 77. A positioning mechanism 9 is fixedly connected to the outer wall of the bottom end of the insulating positioning cylinder 77. The positioning mechanism 9 includes an annular cover 91 fixedly connected to the inner wall of the bottom end of the insulating positioning cylinder 77. A plurality of negative pressure suction cups 92 are fixedly communicated with the lower surface of the insulating positioning cylinder 77. The air guide ends of the plurality of negative pressure suction cups 92 all pass through the inner wall of the insulating positioning cylinder 77 and are located inside the annular cover 91. A control valve 93 is fixedly communicated with the top end of the annular cover 91. A micro air pump 94 is fixedly connected to the upper surface of the annular cover 91. The air inlet end of the micro air pump 94 is fixedly communicated with the top end of the control valve 93 through a connecting pipe. A connecting piece 95 is fixedly connected to the outer wall of the insulating positioning cylinder 77. Two rope holes 96 are formed in the outer wall of the connecting piece 95. Two connecting ropes 97 matching the rope holes 96 are fixedly connected to the outer wall of the insulating positioning cylinder 77, which can improve the stability of the drainage of the drainage bottle 10 and prevent the drainage bottle 10 from tipping over. This mechanism enables the minimally invasive closed drainage device for pneumothorax to not only have the function of warning when the connection between the drainage tube 4 and the drainage bottle 10 fails to be sealed, but also have the function of improving the use stability of the device.
[0033] The input circuit composed of the conductive rod 85 and the conductive cylinder 86 and the pressure sensor 81 are both electrically connected to the input end of the micro PLC controller 84 through wires. The buzzer 83, the micro air pump 94 and the control valve 93 are electrically connected to the output end of the micro PLC controller 84 through wires. The above electrical connection boxes and powered devices are all prior arts and will not be elaborated here.
[0034] The operating principle of the present invention is described as follows: When a pneumothorax patient needs to puncture and drain the accumulated gas in the chest, first insert the cannula core 3 into the inside of the puncture rigid cannula 1 to improve the structural strength of the puncture rigid cannula 1. Moreover, due to the assistance of the puncture tip of the cannula core 3, the puncture effect of the puncture rigid cannula 1 can be improved. Finally, the cannula core 3 carries the puncture rigid cannula 1 and inserts it into the accumulated gas in the chest of the pneumothorax patient. Then, the cannula core 3 is withdrawn. At the same time, the drainage tube 4 is connected to the puncture rigid cannula 1 through the hollow connector 2, and the bottom of the drainage tube 4 is connected to the drainage bottle 10, so that the puncture rigid cannula 1 can drain the accumulated gas and fluid in the chest of the pneumothorax patient into the drainage bottle 10. At the same time, tear off the release paper protective layer 12 and bond the adhesive glue layer 11 to the skin at the puncture position of the pneumothorax patient. Finally, rotate and connect the internal thread ring 51 and the external thread ring 54, and insert the annular sealing rubber 53 into the internal thread ring 54. The annular sealing rubber 53 can not only ensure the stable arrangement of the puncture rigid cannula 1, but also ensure the protection effect at the puncture site. If the internal thread ring 51 is opened, the puncture position of the pneumothorax patient can be conveniently sprayed with anti-inflammatory liquid through the external thread ring 54 to ensure the health of the puncture position of the pneumothorax patient. The method for draining the accumulated gas in the chest of the pneumothorax patient adopts a minimally invasive method, without the need to widely incise the patient's skin, reducing the patient's treatment injury. At the same time, it reduces the pain of the pneumothorax patient during puncture and drainage of the accumulated gas, avoids the patient screaming or wriggling due to pain, reduces the operation difficulty of the doctor, and at the same time improves the convenience and efficiency of the installation of the pneumothorax accumulated gas drainage device;
[0035] When the pneumothorax patient is in the process of draining the accumulated gas in the chest, both ends of the elastic cloth belt 63 are wound around the waist of the pneumothorax patient and fixed through the needle hair magic patch 64 and the cotton hair magic patch 65. Moreover, the cooperation between the elastic cloth belt 63 and the rubber sleeve 61 can limit the middle part of the drainage tube 4 to avoid the shaking of the drainage tube 4 from causing adverse interference to the puncture rigid cannula 1, and try to ensure the stable position of the puncture rigid cannula 1, thereby improving the reliability of chest drainage for the pneumothorax patient;
[0036] When a pneumothorax patient expels the accumulated air in the chest on the hospital bed, the drainage bottle 10 is placed on the floor beside the hospital bed at this time. Then, the negative pressure suction cup 92 at the bottom of the insulating positioning cylinder 77 contacts the floor, and the micro air pump 94 and the control valve 93 are controlled to be powered on and start for 10 seconds through the control panel externally connected to the micro PLC controller 84. The micro air pump 94 sucks the air inside the annular cover 91 through the control valve 93, making the inside of the annular cover 91 in a negative pressure environment. Then, the negative pressure environment makes the negative pressure suction cup 92 tightly suck the floor, making the insulating positioning cylinder 77 stably arranged. After the 10-second countdown is completed, the micro air pump 94 and the control valve 93 are powered off, and the control valve 93 is powered off and closed to ensure that the negative pressure suction cup 92 continuously sucks the floor to maintain stability. At the same time, if the pneumothorax patient changes their body position too quickly or greatly on the hospital bed, the first stabilizing mechanism 6 will pull the drainage bottle 10 through the drainage tube 4. The drainage bottle 10 will deflect through the connecting frame 72, the extension rod 75, and the rolling bearing 76, and drive the conductive rod 85 to deflect, making the conductive rod 85 contact the conductive cylinder 86, thereby connecting an input circuit of the micro PLC controller 84. This input circuit sends an electrical signal to the micro PLC controller 84, and the micro PLC controller 84 timely controls the buzzer 83 to emit a sound warning according to this electrical signal, reminding the pneumothorax patient that the movement amplitude is too large, which is likely to cause the sealing connection between the drainage tube 4 and the drainage bottle 10 to fail, and can also prevent the drainage bottle 10 from tipping over, affecting the drainage effect and safety of the pneumothorax patient;
[0037] When a pneumothorax patient needs to get out of bed and walk, the insulating positioning cylinder 77 is fixed to the patient's ankle through the connecting piece 95, the rope hole 96, and the connecting rope 97 at this time. Then, the patient does not need to lift the drainage tube 4 and the drainage bottle 10, and the warning mechanism 8 can also monitor the external force acting on the drainage tube 4 in real time, avoiding the sealing failure of the connection between the drainage tube 4 and the drainage bottle 10 due to external force pulling, thereby preventing external air from invading the pneumothorax patient's chest cavity and causing an infection situation. This mechanism enables the minimally invasive closed drainage device dedicated to pneumothorax to not only have the function of warning the sealing failure of the connection between the drainage tube 4 and the drainage bottle 10, but also have the function of improving the use stability of the device, thereby effectively improving the drainage effect and reliability of pneumothorax air drainage, and improving the safety of the pneumothorax patient's air drainage;
[0038] In addition, through the cooperation of the moving plate 74 and the pressure sensor 81, when the amount of liquid accumulated in the drainage bottle 10 increases along with the discharge of gas, its weight also gradually increases. The pressure sensor 81 detects the weight change in real time and sends the detection result to the micro PLC controller 84 in the form of an electrical signal. If the pressure sensor 81 detects that the weight of the drainage bottle 10 exceeds the warning threshold preset by the micro PLC controller 84, the micro PLC controller 84 timely controls the buzzer 83 to be powered on to give a sound warning, reminding the medical staff to replace the new drainage bottle 10 in time, avoiding excessive liquid accumulation in the drainage bottle 10 from causing adverse interference to the discharge of chest fluid in pneumothorax patients. This mechanism enables the minimally invasive closed drainage device dedicated for pneumothorax to have the function of warning of excessive liquid accumulation in the drainage bottle 10, thereby improving the reliability of the use of the minimally invasive closed drainage device dedicated for pneumothorax.
[0039] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A minimally invasive closed drainage device for pneumothorax, comprising a puncture hard cannula (1), characterized in that: The bottom end of the puncture hard sleeve (1) is fixedly connected to a hollow connector (2); the inner walls of the puncture hard sleeve (1) and the hollow connector (2) are movably sleeved with a sleeve core (3); the connecting end of the hollow connector (2) is sealedly connected to a drainage tube (4); the bottom end of the drainage tube (4) is sealedly sleeved with a drainage bottle (10); and the outer wall of the puncture hard sleeve (1) is movably sleeved with a limiting mechanism (5); The wall of the drainage tube (4) is movably sleeved with a first stabilizing mechanism (6); The outer wall of the drainage bottle (10) is movably sleeved with a second stabilizing mechanism (7); The second stabilizing mechanism (7) comprises a rubber frame (71) movably connected to the outer wall of the drainage bottle (10); the outer wall of the rubber frame (71) is fixedly sleeved with a connecting frame (72); the bottom end of the connecting frame (72) is fixedly connected with a U-shaped insulating frame (73); two vertical parts of the U-shaped insulating frame (73) are jointly movably sleeved with a movable plate (74); the outer wall of the movable plate (74) is provided with two rectangular through holes that match the vertical parts of the U-shaped insulating frame (73); the bottom end of the U-shaped insulating frame (73) is fixedly connected with an early warning mechanism (8) for monitoring the tilt or overweight state of the drainage bottle (10); the outer walls of both ends of the U-shaped insulating frame (73) are fixedly connected with extension rods (75); the rod wall of the extension rod (75) is fixedly sleeved with a rolling bearing (76); the outer walls of the outer rings of the two rolling bearings (76) are jointly sleeved with an insulating positioning cylinder (77); the bottom outer wall of the insulating positioning cylinder (77) is fixedly connected with a positioning mechanism (9); The early warning mechanism (8) comprises a pressure sensor (81), a lithium battery module (82) and a buzzer (83) fixedly connected to the outer wall of the bottom end of the U-shaped insulating frame (73); the top force-bearing end of the pressure sensor (81) contacts the lower surface of the movable plate (74); a mounting hole is provided at the bottom end of the U-shaped insulating frame (73); a micro PLC controller (84) is fixedly connected to the hole wall of the mounting hole; a conductive rod (85) is fixedly connected to the lower surface of the U-shaped insulating frame (73); a conductive cylinder (86) is fixedly connected to the inner wall of the insulating positioning cylinder (77); and the bottom end of the conductive rod (85) is located at the central axis position of the conductive cylinder (86).
2. The minimally invasive closed drainage device for pneumothorax according to claim 1, characterized in that: The limiting mechanism (5) comprises an internal threaded ring (51) and a rubber ring sheet (52) movably sleeved on the outer wall of the puncture hard sleeve (1); an external threaded ring (54) matching the internal threaded ring (51) is fixedly connected to the outer side of the rubber ring sheet (52); and an annular sealing rubber (53) is fixedly connected to the inner wall of the internal threaded ring (51).
3. The minimally invasive closed drainage device for pneumothorax according to claim 1, characterized in that: The first stabilizing mechanism (6) comprises a rubber sleeve (61) movably sleeved with the outer wall of the drainage tube (4); the outer wall of the rubber sleeve (61) is fixedly connected to a connecting ring (62); the inner wall of the connecting ring (62) is movably connected to an elastic cloth belt (63); and the outer walls on both sides of the elastic cloth belt (63) are respectively fixedly connected to a needle-hair Velcro patch (64) and a cotton-hair Velcro patch (65) that cooperate with each other.
4. The minimally invasive closed drainage device for pneumothorax according to claim 1, characterized in that: The positioning mechanism (9) comprises an annular cover (91) fixedly connected to the inner wall of the bottom end of the insulating positioning cylinder (77); the lower surface of the insulating positioning cylinder (77) is fixedly connected to a plurality of negative pressure suction cups (92); the air guide ends of the plurality of negative pressure suction cups (92) pass through the inner wall of the insulating positioning cylinder (77) and are located inside the annular cover (91); the top end of the annular cover (91) is fixedly connected to a control valve (93); the upper surface of the annular cover (91) is fixedly connected to a micro air pump (94); the air inlet end of the micro air pump (94) is fixedly connected to the top end of the control valve (93) via a connecting pipe; the outer wall of the insulating positioning cylinder (77) is fixedly connected to a connecting piece (95); the outer wall of the connecting piece (95) is provided with two rope holes (96); the outer wall of the insulating positioning cylinder (77) is fixedly connected to two connecting ropes (97) that match the rope holes (96).
5. The minimally invasive closed drainage device for pneumothorax according to claim 1, characterized in that: The top end of the sleeve core (3) is provided with a puncture tip, and the top end of the puncture hard sleeve (1) is provided with a puncture chamfer.
6. The minimally invasive closed drainage device for pneumothorax according to claim 2, characterized in that: A bonding glue layer (11) is coated on the side of the rubber ring sheet (52) away from the external threaded ring (54), and a release paper protective layer (12) is connected to the outside of the bonding glue layer (11).
Citation Information
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