Chest drainage device

Abstract

The chest drainage device comprises a chest drainage tube, a water seal bottle and a drainage tube fixing device, the drainage tube fixing device comprises a left supporting and fixing tube and a right supporting and fixing tube, the middle of the left supporting and fixing tube is bent leftwards to form a left clamping ring, the middle of the right supporting and fixing tube is bent rightwards to form a right clamping ring, and fixing claws are arranged on the left clamping ring and the right clamping ring. The two ends of the left supporting and fixing tube and the right supporting and fixing tube and the outer ends of the left fixing claw and the right fixing claw are all provided with adsorption discs, and the chest drainage tube is clamped between the left clamping ring and the right clamping ring. According to the device, the chest drainage tube is clamped and fixed on the skin through the adsorption force of the adsorption disc, once the chest drainage tube is pulled, the device transfers and disperses the pulling force to the skin at multiple positions on the periphery of the chest drainage tube, and then the chest drainage tube is prevented from moving relative to an operative incision of the chest of a patient; the risk that the thoracic cavity drainage tube accidentally slips is greatly reduced, and trauma caused by the fact that a suture line pulls a suture opening is reduced.

Description

Technical Field

[0001] This invention relates to the field of chest drainage technology, and more particularly to a chest drainage device. Background Technology

[0002] Closed thoracic drainage is an important surgical technique for treating pneumothorax, hemothorax, and empyema. Closed thoracic drainage relies on a water-seal bottle to isolate the pleural cavity from the outside environment. When high pressure forms in the pleural cavity due to air or fluid accumulation, the gas or fluid is drained into the water-seal bottle. When negative pressure is restored, the fluid in the water-seal bottle is drawn to the lower end of the drainage tube, creating a negative pressure water column that prevents air from entering the pleural cavity. The purposes of closed thoracic drainage are: 1. To drain fluid and gas from the pleural cavity; 2. To restore negative pressure in the pleural cavity and maintain the normal position of the mediastinum; 3. To promote lung expansion.

[0003] Closed chest drainage requires an incision in the skin outside the chest cavity to insert one end of the chest drainage tube into the chest cavity. To properly secure the chest drainage tube and prevent slippage, the chest drainage tube is sutured to the skin (i.e., 1-2 stitches are sutured to the skin on the side of the incision, and the chest drainage tube is ligated and fixed). Then, sterile gauze is laid on the skin near the chest drainage tube, and the sterile gauze is fixed to the skin with medical tape. However, the current method of fixing chest drainage tubes has the following shortcomings: 1. When the chest drainage tube is subjected to external impact or traction, it will pull on the sutures, causing pain to the patient and hindering the healing of subsequent suture wounds; 2. If the sutures are tied too tightly to the chest drainage tube, they will pull on the sutures on the skin, causing pain to the patient and hindering the healing of subsequent suture wounds; if the sutures are tied too loosely, they will not fix the chest drainage tube, and there is still a risk of the chest drainage tube slipping out; therefore, it is not easy for medical staff to control; 3. Sterile gauze is fixed with medical tape. The two ends of the medical tape are pasted on the skin, and adhesive residue is inevitable. Once adhesive residue remains on the skin, patients often try to remove it by washing with warm water, but many adhesives are lipid-based and waterproof, and simply soaking in warm water cannot completely remove it; or they use soap. However, it cannot be completely cleaned. In clinical practice, many wound dressings cannot be manipulated at will. Also, kneading around the surgical incision can cause pain to the patient. Furthermore, if the liquid from the cleaning process sticks to the wound, it can increase the risk of wound infection.

[0004] In addition to the above-mentioned shortcomings, the chest drainage devices currently used in clinical practice also have the following deficiencies. Existing water-seal bottles are mainly divided into two categories:

[0005] The first type is the traditional water-seal bottle or dry valve drainage bottle. Although these devices are relatively simple in structure, they generally suffer from problems such as large size, heavy weight, and fragile glass material. Patients usually need to stay in bed or move around only a small area beside the bed, and the drainage bottle needs to be hung by the bedside or a trolley is used, which greatly restricts the patient's early ambulation and is not conducive to rapid postoperative recovery.

[0006] The second category is the newly emerging intelligent electronic drainage bottle. These products integrate electronic sensors, displays, and wireless communication, enabling automatic metering and intelligent alarms, making them highly functional. However, their complex structure and high manufacturing costs result in expensive prices, hindering their widespread adoption in grassroots hospitals and among ordinary patients. Furthermore, their reliance on battery power poses a risk of battery depletion, and the complex electronic system increases the failure rate and maintenance difficulty, making them less than ideal for applications with limited budgets or those prioritizing extreme reliability.

[0007] Therefore, the market urgently needs a chest drainage device that can solve the problem of poor portability of traditional drainage bottles, has the intuitive warning function of intelligent drainage bottles, and is also low in cost, reliable in structure, and requires no power supply, to fill the market gap. Summary of the Invention

[0008] To address the aforementioned shortcomings in existing technologies, this invention provides a chest drainage device that holds a chest drainage tube in place and secures it to the skin using suction. When the chest drainage tube is pulled, the device transfers and distributes the pulling force to multiple locations on the skin around the tube, thereby preventing the tube from moving relative to the surgical incision on the patient's chest. This significantly reduces the risk of accidental slippage of the chest drainage tube and also reduces the trauma caused by sutures pulling on the suture site, promoting better healing of the suture site later.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A chest drainage device includes a chest drainage tube, a drainage tube connector, a water seal bottle, and a drainage tube fixing device for fixing the chest drainage tube to the chest outside the surgical incision. The chest drainage tube is connected to one end of the drainage tube connector via a connector, and the other end of the drainage tube connector is connected to the inlet interface of the water seal bottle.

[0011] The drainage tube fixing device includes a left support fixing tube and a right support fixing tube; the middle part of the left support fixing tube bends to the left to form a left retaining ring, and the middle part of the right support fixing tube bends to the right to form a right retaining ring. A left fixing claw extending to the left is provided on the left retaining ring, and a right fixing claw extending to the right is provided on the right retaining ring. Adsorption plates are provided at both ends of the left and right support fixing tubes and at the outer ends of the left and right fixing claws. Ventilation holes I are provided in the left and right support fixing tubes, the left and right fixing claws, and the right fixing claws, respectively, along their length. A left one-way valve is provided on the left retaining ring for controlling the suction of gas in the vent holes I in the left support fixing tube and the left fixing claw, and a right one-way valve is provided on the right retaining ring for controlling the suction of gas in the right support fixing tube and the right fixing claw.

[0012] After the left and right support fixing tubes are fastened together, a chest drainage tube fixing sleeve is formed between the left and right retaining rings. The chest drainage tube passes through the chest drainage tube fixing sleeve and is secured between the left and right retaining rings.

[0013] In a preferred embodiment of the present invention, the left support fixing tube and the right support fixing tube are fastened to each other by a snap-fit ​​component;

[0014] The buckling component includes a buckling tube and an airbag; a vent II is provided inside the left support fixing tube along its length direction, the buckling tube is fixedly located on the right side of the left support fixing tube, and the inside of the buckling tube communicates with the inside of the vent II; the airbag is fixedly located on the right end of the buckling tube, and the inside of the buckling tube communicates with the inside of the airbag; a locking hole is provided on the right support fixing tube at a position corresponding to the buckling tube, and a cavity is provided inside the right support fixing tube communicating with the locking hole; the buckling tube on the left support fixing tube is snapped into the corresponding locking hole on the right support fixing tube, and the airbag is located in the corresponding cavity; an inflation one-way valve for controlling the inflation of the vent II and the airbag is provided on the left retaining ring.

[0015] As a preferred embodiment of the present invention, a left connecting ring is provided on the left outer side of the left retaining ring and between the left support fixing tube and the adjacent left fixing claw, as well as between the adjacent left fixing claws; and a right connecting ring is provided on the right outer side of the right retaining ring and between the right support fixing tube and the adjacent right fixing claw, as well as between the adjacent right fixing claws.

[0016] As an improvement of the present invention, the left support fixing tube, the right support fixing tube, the left fixing claw and the right fixing claw are provided with vent holes, and each vent hole is provided with a sealing plug.

[0017] As an improvement of the present invention, the chest drainage device further includes sterile gauze. Sterile gauze is laid on the chest outside the chest drainage tube and outside the surgical incision. The left support and fixation tube, the right support and fixation tube, the left fixation claw, the right fixation claw, the left connecting ring, and the right connecting ring are all pressed on the sterile gauze. The suction cups on the outer ends of the left support and fixation tube, the right support and fixation tube, the left fixation claw, and the right fixation claw are all located outside the sterile gauze.

[0018] As an improvement of the present invention, a mechanical warning device is provided on the inner wall of the water-sealed bottle, and a transparent observation tube is arranged circumferentially on the upper part of the inner wall of the water-sealed bottle; the mechanical warning device includes a guide cylinder, a float, a piercing needle, a supporting guide sleeve, and a liquid bag storing colored liquid; the guide cylinder is a transparent hollow cylindrical structure, the guide cylinder is arranged on the inner wall of the water-sealed bottle and perpendicular to the transparent observation tube, the float is arranged inside the guide cylinder, the outer wall of the float is slidably engaged with the inner wall of the guide cylinder, the piercing needle is vertically arranged in the middle of the float, and the tip of the piercing needle... The needle tip is elongated. A support plate is provided near the top of the cross-section of the inner wall of the guide tube. The middle of the support plate bends downward to form a horizontal guide groove. The two sides of the upper surface of the support plate gradually slope downward towards the horizontal guide groove to form a guide surface. The two ends of the horizontal guide groove are connected to the inside of the transparent observation tube. The support guide sleeve is vertically set in the middle of the horizontal guide groove. The bottom of the support guide sleeve passes downward through the horizontal guide groove. The inner diameter of the support guide sleeve is slightly smaller than or equal to the outer diameter of the puncture needle. The liquid bag is placed inside the guide tube and pressed on the support plate and the support guide sleeve.

[0019] As an improvement of the present invention, the mechanical early warning device further includes a diaphragm, which is laterally disposed on the inner wall of the guide cylinder and close to the bottom end of the support guide sleeve. The diaphragm is provided with a plurality of vent holes I with a diameter smaller than the outer diameter of the piercing needle.

[0020] As an improvement of the present invention, the top of the supporting guide sleeve is provided with a plurality of vertical guide grooves along the circumferential direction, and the outer wall of the supporting guide sleeve is provided with arc-shaped guide plates corresponding to the vertical guide grooves one by one, and the vertical guide grooves are located at the top of the concave surface of the corresponding arc-shaped guide plates.

[0021] As an improvement of the present invention, a plurality of vent holes II are evenly distributed on the guide cylinder, and the top port of the guide cylinder is recessed.

[0022] As an improvement of the present invention, the outer surface of the water seal bottle is provided with scale lines for quick and accurate reading, the bottom of the water seal bottle is provided with an anti-slip base, the left and right sides of the water seal bottle are respectively provided with carrying clips near the top and bottom, and the two sides of the water seal bottle near the bottle mouth are respectively provided with hanging rope holes.

[0023] Compared with the prior art, the technical advantages of the present invention are:

[0024] 1. When using this chest drainage device, the drainage tube fixation device serves to secure the chest drainage tube. When the chest drainage tube is compressed or stretched, the drainage tube fixation device should be pulled first. Because the drainage tube fixation device is firmly attached to the patient's chest, the force applied to the chest drainage tube is transferred and distributed to multiple locations on the skin of the patient's chest. This prevents the chest drainage tube from moving relative to the surgical incision on the patient's chest, greatly reducing the risk of accidental slippage of the chest drainage tube. It also reduces the trauma caused by the suture pulling on the suture, which is beneficial to the later healing of the suture.

[0025] 2. The drainage tube fixation device acts as a pressure point for the sterile gauze. The drainage tube fixation device is fixed to the patient's chest by suction, instead of using medical tape. This effectively avoids the phenomenon of leaving adhesive marks on the patient's chest skin, thus avoiding a series of problems caused by subsequent removal of adhesive marks.

[0026] 3. The drainage tube fixing device can be reused after disinfection, which greatly reduces the cost of use.

[0027] 4. The water-sealed bottle of the present invention solves the problems of traditional drainage bottles being bulky and inconvenient to carry, as well as the problems of intelligent drainage bottles being expensive, complex in structure, and dependent on power supply; the water-sealed bottle of the present invention has a simple structure, low cost, absolute reliability, and is easy to carry.

[0028] 5. This invention employs a mechanical early warning device to provide an intuitive visual alarm without the need for power supply when the drained liquid reaches a preset safe capacity. Attached Figure Description

[0029] Figure 1 A schematic diagram of a chest drainage device installed on a patient's chest.

[0030] Figure 2 This is a schematic diagram of the drainage tube fixing device;

[0031] Figure 3 This is a schematic diagram of the structure after being cut along the length of the left support fixing tube.

[0032] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0033] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0034] Figure 6 for Figure 3 Enlarged structural diagram at point C;

[0035] Figure 7 A schematic diagram showing the structure with ventilation hole II and snap-fit ​​components inside the left support fixing tube;

[0036] Figure 8 A schematic diagram showing the structure with a locking hole and cavity inside the right support fixing tube;

[0037] Figure 9 This is a schematic diagram of the structure after the left and right support fixing tubes are interlocked.

[0038] Figure 10 A schematic diagram of the structure of the drainage tube fixing device pressed onto sterile gauze;

[0039] Figure 11 A schematic diagram showing the structure of setting up annular air-filled cavities in the side walls of the left and right clasps near the chest drainage tube;

[0040] Figure 12 This is a schematic diagram of the structure of a water-sealed bottle;

[0041] Figure 13 This is a schematic diagram of a mechanical early warning device.

[0042] Figure 14 This is a schematic diagram of the needle tip structure;

[0043] Figure 15 This is a structural schematic diagram of the support plate;

[0044] Figure 16 for Figure 15 Enlarged structural diagram at point D;

[0045] Figure 17 This is a schematic diagram of the diaphragm structure.

[0046] In the diagram: 1—Chest drainage tube; 2—Drainage tube connector; 3—Water seal bottle; 31—Mechanical early warning device; 311—Guide tube; 3111—Ventilation hole II; 312—Float; 313—Piercing needle; 3131—Needle tip; 314—Supporting guide sleeve; 3141—Vertical guide groove; 3142—Arc-shaped guide plate; 315—Liquid bag; 316—Support plate; 317—Horizontal guide groove; 318—Diaphragm; 3181—Ventilation hole I; 32—Transparent observation tube; 33—Graduation line; 34—Anti-slip base; 35—Portable clip; 36—Hanging hole; 37—Hanging rope; 38—Long tube; 39—Short tube; 4—Connector; 5—Drainage tube fixing device; 51—Left support fixing tube; 511—Left retaining ring; 512—Left one-way valve; 513—Snapping component; 5131—Snapping tube; 5132—Airbag; 514—Ventilation port II; 515—Inflation one-way valve; 516—Left connecting ring; 52—Right support and fixing tube; 521—Right retaining ring; 522—Right one-way valve; 523—Snapping hole; 524—Cavity; 525—Right connecting ring; 53—Chest drainage tube fixing sleeve; 54—Left fixing claw; 55—Right fixing claw; 56—Adsorption plate; 57—Ventilation port I; 58—Sealing plug; 59—Annular inflation chamber; 6—Sterile gauze; 7—Chest. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] like Figure 1 As shown, a chest drainage device includes a chest drainage tube 1, a drainage connector 2, a water-seal bottle 3, sterile gauze 6, and a drainage tube fixing device 5 for fixing the chest drainage tube 1 to the chest 7 outside the surgical incision of the patient. The chest drainage tube 1 is connected to one end of the drainage connector 2 via a connector 4, and the other end of the drainage connector 2 is connected to the inlet interface of the water-seal bottle 3. The cap of the water-seal bottle 3 is provided with a long tube 38 and a short tube 39. The inlet interface of the water-seal bottle 3 is the upper port of the long tube 38. The lower end of the long tube 38 is inserted 3-4 cm below the liquid surface. The short tube 39 is used for venting or connecting to a negative pressure source, and the lower end of the short tube 39 is located above the liquid surface. One end of the chest drainage tube 1 is inserted into the pleural cavity through a surgical incision on the patient's chest 7, while the other end of the chest drainage tube 1 is located outside the patient's chest 7 and is fixed to the skin with sutures to prevent accidental slippage of the chest drainage tube 1, forming a primary anti-slippage protection. Then, sterile gauze 6 is laid and adhered to the patient's chest 7 by the drainage tube fixing device 5, thereby fixing the chest drainage tube 1 to the patient's chest 7. The drainage tube fixing device 5 can effectively prevent the chest drainage tube 1 from moving inward or outward relative to the patient's chest, forming the main protection against movement of the chest drainage tube 1.

[0049] The drainage tube fixing device 5 includes a left support fixing tube 51 and a right support fixing tube 52, such as... Figure 2 As shown. The middle part of the left support and fixation tube 51 bends to the left to form a left retaining ring 511, and the middle part of the right support and fixation tube 52 bends to the right to form a right retaining ring 521. A left fixing claw 54 extending to the left is provided on the left retaining ring 511, and a right fixing claw 55 extending to the right is provided on the right retaining ring 521. Adsorption plates 56 are provided at both ends of the left and right support and fixation tubes 51 and 52, as well as at the outer ends of the left and right fixing claws 54 and 55. The multiple adsorption plates 56 on both sides act like multiple grippers, firmly adhering to the patient's chest 7, thereby fixing the entire drainage tube fixation device 5 to the patient's chest 7. Figure 1 As shown. Ventilation holes I57 are respectively provided along the length of the left support fixing tube 51, right support fixing tube 52, left fixing claw 54, and right fixing claw 55. Figures 3-6 As shown, the left retaining ring 511 is equipped with a left one-way valve 512 for controlling the suction of gas from the vent hole I 57 in the left support fixing tube 51 and the left fixing claw 54, as follows: Figures 2-4 As shown, one end of the vent hole I 57 on the left is connected to one end of the left one-way valve 512, and the other end of the vent hole I 57 on the left is connected to the corresponding adsorption plate 56 on the left. Figure 6As shown, the left one-way valve 512, in conjunction with the suction device, allows for suction using a syringe. Simply insert the tip of the syringe into the port of the left one-way valve 512 to suction the gas from the vent hole I 57 in the left support fixing tube 51 and the left fixing claw 54, thereby suctioning the gas from the adsorption plate 56, which then adheres to the corresponding skin. The right retaining ring 521 is equipped with a right one-way valve 522 for controlling the suction of gas from the right support fixing tube 52 and the right fixing claw 55. One end of the vent hole I 57 on the right side is connected to one end of the right one-way valve 522, and the other end of the vent hole I 57 is connected to the corresponding adsorption plate 56 on the right side. Similarly, the right one-way valve 522, in conjunction with the suction device, allows for suction using a syringe. In this embodiment, two vent holes I 57 are respectively provided along the length of the left support fixing tube 51 and the right support fixing tube 52; two left one-way valves 512 are provided on the left retaining ring 511, one of which is connected to the vent holes I 57 in the two left fixing claws 54 on the corresponding side and to one vent hole I 57 in the left support fixing tube 51 on the corresponding side, and the other is connected to the vent hole I 57 in one left fixing claw 54 on the corresponding side and to another vent hole I 57 in the left support fixing tube 51 on the corresponding side; two right one-way valves 522 are provided on the right retaining ring 521, one of which is connected to the vent holes in the two right fixing claws 55 on the corresponding side. The ventilation hole 57 is connected to the ventilation hole 57 on the corresponding side of the right support and fixation tube 52. Another right one-way valve 522 is connected to the ventilation hole 57 in one right fixation claw 55 on the corresponding side and the ventilation hole 57 on the corresponding side of the right support and fixation tube 52. When each suction plate 56 in the drainage tube fixation device 5 is attached to the patient's chest 7, the gas in the left ventilation hole 57 is drawn out through the two left one-way valves 512, and then the gas in the left suction plate 56 is drawn out. The gas in the right ventilation hole 57 is drawn out through the two right one-way valves 522, and then the gas in the right suction plate 56 is drawn out, thereby firmly attaching the entire drainage tube fixation device 5 to the patient's chest 7. Alternatively, a left one-way valve 512 can be installed on the left retaining ring 511 to extract gas from the left vent hole I 57 and the left adsorption plate 56. Multiple left one-way valves 512 can also be installed on the left retaining ring 511 to extract gas from the corresponding left vent hole I 57 and the left adsorption plate 56 individually. Similarly, a right one-way valve 522 or multiple right one-way valves 522 can be installed on the right retaining ring 521.

[0050] After the left support and fixation tube 51 and the right support and fixation tube 52 are interlocked, a chest drainage tube fixing sleeve 53 is formed between the left retaining ring 511 and the right retaining ring 521. The chest drainage tube 1 passes through the chest drainage tube fixing sleeve 53 and is secured between the left retaining ring 511 and the right retaining ring 521. The chest drainage tube 1 is fixed by the left retaining ring 511 and the right retaining ring 521, making installation and removal extremely convenient.

[0051] The left support fixing tube 51 and the right support fixing tube 52 are fastened together by a snap-fit ​​component 513. The snap-fit ​​component 513 includes a snap-fit ​​tube 5131 and an airbag 5132, such as... Figure 7 As shown; a vent II 514 is provided inside the left support fixing tube 51 along its length. A snap-fit ​​tube 5131 is fixedly installed on the right side of the left support fixing tube 51, communicating with the vent II 514. An airbag 5132 is fixedly installed on the right end of the snap-fit ​​tube 5131, communicating with the airbag 5132. A snap-fit ​​hole 523 is provided on the right support fixing tube 52 at a position corresponding to the snap-fit ​​tube 5131, such as... Figure 8 As shown, the right support fixing tube 52 has a cavity 524 communicating with the locking hole 523. The lateral dimension of the cavity 524 is larger than the inner diameter of the locking hole 523. The locking tube 5131 on the left support fixing tube 51 is inserted into the corresponding locking hole 523 on the right support fixing tube 52, and the airbag 5132 is located in the corresponding cavity 524. The left locking ring 511 is provided with an inflation one-way valve 515 for controlling the inflation of the vent II 514 and the airbag 5132, such as... Figure 4 As shown. In this embodiment, ventilation holes II 514 are respectively provided inside the left support fixing tube 51 and on both sides of the left retaining ring 511 along its length direction. Two sets of buckle tubes 5131 are respectively provided on the left support fixing tube 51 and on both sides of the left retaining ring 511. The left retaining ring 511 is provided with two inflation one-way valves 515. One inflation one-way valve 515 injects gas into the ventilation hole II 514 and the air bag 5132 on one side, and the other inflation one-way valve 515 injects gas into the ventilation hole II 514 and the air bag 5132 on the other side. The left support fixation tube 51 and the right support fixation tube 52 approach and lock onto the chest drainage tube 1 from both sides. The locking tube 5131 is inserted into the corresponding locking hole 523. Gas is injected into the corresponding ventilation hole II 514 and the air bag 5132 through the inflation one-way valve 515. The air bag 5132 inflates and becomes stuck in the cavity 524. Figure 9 As shown, this prevents the buckle tube 5131 from exiting from the corresponding buckle hole 523, and securely fastens the left support fixing tube 51 and the right support fixing tube 52 together, thereby firmly holding the chest drainage tube 1.

[0052] A left connecting ring 516 is provided on the outer left side of the left retaining ring 511, between the left support fixing tube 51 and the adjacent left fixing claw 54, and between the adjacent left fixing claw 54. A right connecting ring 525 is provided on the outer right side of the right retaining ring 521, between the right support fixing tube 52 and the adjacent right fixing claw 55, and between the adjacent right fixing claw 55. Figure 2 As shown. In this embodiment, two left connecting rings 516 are provided on the left side and two right connecting rings 525 are provided on the right side. The two left connecting rings 516 on the left side and the two right connecting rings 525 on the right side correspond one-to-one and are approximately circular, so that the entire drainage tube fixing device 5 forms a spider web that can be attached to the patient's chest 7.

[0053] The left support fixation tube 51, right support fixation tube 52, left fixation claw 54, and right fixation claw 55 are equipped with vent holes, each with a sealing plug 58. When it is necessary to regularly disinfect the patient's chest 7 near the chest drainage tube 1 or change the sterile gauze 6, simply remove the sealing plugs 58 from the left support fixation tube 51, right support fixation tube 52, left fixation claw 54, and right fixation claw 55. Gas enters the ventilation port I 57 and the suction plate 56, and gas is discharged from the ventilation port II 514 and the air bag 5132. The left support fixation tube 51 and right support fixation tube 52 can then be easily separated from each other, and the left support fixation tube 51 and left fixation claw 54 on the left side and the right support fixation tube 52 and right fixation claw 55 on the right side can be detached from the patient's chest 7 for disinfection and replacement of the sterile gauze 6.

[0054] A sterile gauze pad 6 is placed on the chest outside the chest drainage tube 1 and outside the surgical incision. The left support and fixation tube 51, right support and fixation tube 52, left fixation claw 54, right fixation claw 55, left connecting ring 516, and right connecting ring 525 are all pressed onto the sterile gauze pad 6. The suction cups 56 on the outer ends of the left support and fixation tube 51, right support and fixation tube 52, left fixation claw 54, and right fixation claw 55 are all located outside the sterile gauze pad 6. Figure 10 As shown. To better secure the left clasp 511 and right clasp 521 to the chest drainage tube 1, annular air-filled cavities 59 can be provided in the side walls of the left clasp 511 and right clasp 521 near the chest drainage tube 1. The cross-section of the annular air-filled cavity 59 is elongated, with the longer side close to the side wall of the chest drainage tube 1, as shown. Figure 11 As shown, a certain pressure of gas can be introduced into the annular inflation chamber to make the left retaining ring 511 and the right retaining ring 521 fit more tightly against the side wall of the chest drainage tube 1, thereby increasing the contact surface between the left retaining ring 511 and the right retaining ring 521 and the chest drainage tube 1, and preventing the chest drainage tube 1 from sliding between the left retaining ring 511 and the right retaining ring 521.

[0055] The drainage tube fixation device 5 designed in this invention has the following technical effects: First, the drainage tube fixation device 5 not only fixes the chest drainage tube 1, but also, when the chest drainage tube 1 is compressed or stretched, pulls the drainage tube fixation device 5 first. Because the drainage tube fixation device 5 is firmly attached to the skin of the patient's chest 7, the force applied to the chest drainage tube 1 is transferred and dispersed to multiple locations on the skin of the patient's chest 7, thereby preventing the chest drainage tube 1 from moving relative to the surgical incision on the patient's chest 7, greatly reducing the risk of accidental slippage of the chest drainage tube 1, and also reducing the trauma caused by the suture pulling on the suture. This design facilitates the later healing of the suture wound. Secondly, the drainage tube fixation device 5 acts as a pressure point for the sterile gauze 6. Each suction plate 56 is closer to the skin of the chest 7 than the left support fixation tube 51, right support fixation tube 52, left fixation claw 54, right fixation claw 55, left connecting ring 516, and right connecting ring 525. This allows space for the sterile gauze 6 to be placed between the left support fixation tube 51, right support fixation tube 52, left fixation claw 54, right fixation claw 55, left connecting ring 516, and right connecting ring 525 and the skin of the chest 7. This preserves the sterile gauze 6's role in protecting the surgical incision and preventing infection, without affecting the suction plates 56. The drainage tube fixing device 5 is firmly attached to the skin of the chest 7; thirdly, it is fixed to the patient's chest 7 by adsorption, without using medical tape, effectively avoiding the phenomenon of leaving adhesive marks on the patient's chest 7 skin, thus avoiding a series of problems caused by subsequent removal of adhesive marks; fourthly, the drainage tube fixing device 5 can be reused after disinfection, greatly reducing the cost of use; fifthly, the drainage tube fixing device 5 is composed of two interlocking parts, which is convenient for installation and disassembly. When disassembling, only the sealing plug 58 needs to be removed, and the left and right parts can be moved away from both sides of the chest drainage tube 2, which does not affect the chest drainage tube 2. The surgical incision disinfection and skin disinfection near the chest drainage tube 2 do not affect the replacement of sterile gauze 6. After the left and right parts are removed, sufficient operating space is provided for medical staff, which is more conducive to the quick operation of medical staff. During installation, the left and right parts are simply clamped onto the chest drainage tube 2 from both sides. The left support fixation tube 51 and the right support fixation tube 52 are interlocked. Inflate the air hole II 514 with a syringe through the inflation one-way valve 515, and draw air out of the air hole I 57 with a syringe through the left one-way valve 512 and the right one-way valve 522. The entire drainage tube fixation device 5 can be fixed to the skin of the chest 7.

[0056] The water-sealed bottle 3 has a flattened body, resembling a flat water bottle. The body is made of lightweight, high-strength medical-grade polypropylene through one-piece injection molding to reduce size and weight, making it easy for patients to carry. The bottle material is non-toxic, transparent, shatter-resistant, and low-cost. A mechanical warning device 31 is installed on the inner wall of the water-sealed bottle 3, and a transparent observation tube 32 is arranged circumferentially on the upper part of the inner wall of the water-sealed bottle 3. Figure 12 As shown.

[0057] The mechanical warning device 31 includes a guide cylinder 311, a float 312, a piercing needle 313, a support guide sleeve 314, a liquid bag 315 storing colored liquid, and a diaphragm 318. The guide cylinder 311 is a transparent, hollow cylindrical structure, facilitating external observation of the float 312's position. The guide cylinder 311 is mounted on the inner wall of the water-sealed bottle 3 and perpendicular to the transparent observation tube 32. The float 312 is located inside the guide cylinder 311. The float 312 has a lower density than the drainage liquid and can rise and fall with the liquid level. The float 312 is made of engineering plastic and is a high-contrast color such as red, orange, or yellow, facilitating easy observation of its position. The outer wall of the float 312 slides vertically against the inner wall of the guide cylinder 311. The piercing needle 313 is vertically positioned in the middle of the float 312. Figure 13 As shown, the tip of the piercing needle 313 is a long, narrow needle tip 3131, as... Figure 14 As shown. A support plate 316 is provided near the top of the cross-section of the inner wall of the guide cylinder 311. The middle part of the support plate 316 bends downward to form a horizontal guide groove 317, as shown. Figure 15 As shown, the upper surface of the support plate 316 has horizontal guide grooves 317 on both sides that gradually slope downwards towards the center to form a guide surface. This facilitates the rapid flow of liquid from both sides of the upper surface of the support plate 316 into the horizontal guide grooves 317 in the center. The two ends of the horizontal guide grooves 317 are connected to the transparent observation tube 32. The support guide sleeve 314 is vertically installed in the center of the horizontal guide grooves 317, with its bottom extending downwards through the horizontal guide grooves 317. The inner diameter of the support guide sleeve 314 is slightly smaller than or equal to the outer diameter of the puncture needle 313. The liquid bag 315 is placed inside the guide tube 311 and pressed against the support plate 316 and the support guide sleeve 314.

[0058] In this embodiment, a plurality of vertical guide grooves 3141 are provided on the top of the supporting guide sleeve 314 along the circumferential direction, and arc-shaped guide plates 3142 corresponding one-to-one with the vertical guide grooves 3141 are provided on the outer wall of the supporting guide sleeve 314. The vertical guide grooves 3141 are located at the top of the concave surface of the corresponding arc-shaped guide plate 3142, such as... Figure 16As shown, after the needle tip 3131 of the piercing needle 313 pierces the bottom of the liquid bag 315, some of the liquid inside the liquid bag 315 will flow downwards along the needle tip 3131. The liquid flowing downwards along the needle tip 3131 is guided by the vertical guide groove 3141 and the arc-shaped guide plate 3142 to quickly enter the horizontal guide groove 317, and then enter the transparent observation tube 32. The vertical guide groove 3141 and the arc-shaped guide plate 3142 guide the liquid flowing downwards along the needle tip 3131 to quickly enter the horizontal guide groove 317. The diaphragm 318 is horizontally arranged on the inner wall of the guide cylinder 311 and close to the bottom end of the supporting guide sleeve 314. The diaphragm 318 has multiple vent holes I 3181 with a diameter smaller than the outer diameter of the piercing needle 313, such as... Figure 17 As shown, the vent hole I 3181 connects the upper and lower parts of the diaphragm 318, preventing the float 312 from moving up and down in the guide tube 311, and also preventing the piercing needle 313 from piercing the diaphragm 318 without buoyancy, thereby protecting the liquid bag 315 above from being pierced. That is, if the liquid level does not rise to a certain height, the piercing needle 313 will not pierce the diaphragm 318 without buoyancy, thus protecting the liquid bag 315.

[0059] As the liquid level in the water-sealed bottle 3 rises, after the piercing needle 313 pierces the diaphragm 318, and the liquid level continues to rise, the tip 3131 of the piercing needle 313 contacts the bottom of the liquid bag 315. Due to the fluctuations in the liquid level inside the water-sealed bottle 3, the tip 3131 of the piercing needle 313 moves up and down continuously, causing the tip 3131 to not only pierce the bottom of the liquid bag 315, but also create a long, narrow opening at the bottom of the liquid bag 315. This facilitates the rapid outflow of liquid from the liquid bag 315. The liquid flowing out of the liquid bag 315 passes through the guide surface... Guided by the vertical guide channel 3141 and the arc-shaped guide plate 3142, the liquid quickly enters the horizontal guide channel 317 and then flows into the transparent observation tube 32. Since the liquid bag 315 contains colored liquid, such as red, orange or yellow, once colored liquid appears in the transparent observation tube 32, it will provide a direct visual alarm to medical personnel or observers, indicating that the drainage liquid in the water seal bottle 3 has reached the preset safe capacity and has reached the height of the warning line, and the water seal bottle 3 needs to be replaced.

[0060] Multiple vent holes II 3111 are evenly distributed on the guide tube 311. The top port of the guide tube 311 is recessed, which helps to constrain the liquid bag 315 to the support plate 316. The outer surface of the water seal bottle 3 is provided with scale lines 33 for quick and accurate reading of the drainage fluid volume. The bottom of the water seal bottle 3 is provided with an anti-slip base 34. Portable clips 35 are provided on the left and right sides of the water seal bottle 3 near the top and bottom, respectively. The portable clips 35 have appropriate elasticity and can be firmly clipped to the patient's hospital gown pocket, belt, or backpack. The two sides of the water seal bottle 3 near the bottle mouth are provided with hanging holes 36. The hanging rope 37 passes through the two hanging holes 36, so that the water seal bottle 3 can be hung up by the hanging rope 37, thus providing a lightweight suspension method.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A chest drainage device, comprising a chest drainage tube (1), a drainage connector (2), and a water seal bottle (3), wherein the chest drainage tube (1) is connected to one end of the drainage connector (2) via a connector (4), and the other end of the drainage connector (2) is connected to the inlet interface of the water seal bottle (3); characterized in that: It also includes a drainage tube fixing device (5) for fixing the chest drainage tube (1) to the chest outside the surgical incision; The drainage tube fixing device (5) includes a left support fixing tube (51) and a right support fixing tube (52); the middle part of the left support fixing tube (51) bends to the left to form a left retaining ring (511), and the middle part of the right support fixing tube (52) bends to the right to form a right retaining ring (521). A left retaining claw (54) extending to the left is provided on the left retaining ring (511), and a right retaining claw (55) extending to the right is provided on the right retaining ring (521). The two ends of the left support fixing tube (51) and the right support fixing tube (52), as well as the left retaining claw (54) and the right retaining claw (55), are connected. The outer ends of the 55) are all provided with adsorption plates (56); the left support fixing tube (51), the right support fixing tube (52), the left fixing claw (54) and the right fixing claw (55) are respectively provided with vent holes I (57) along their length direction; the left retaining ring (511) is provided with a left one-way valve (512) for controlling the suction of gas in the vent holes I (57) in the left support fixing tube (51) and the left fixing claw (54); the right retaining ring (521) is provided with a right one-way valve (522) for controlling the suction of gas in the right support fixing tube (52) and the right fixing claw (55); After the left support fixing tube (51) and the right support fixing tube (52) are fastened together, a chest drainage tube fixing sleeve (53) is formed between the left retaining ring (511) and the right retaining ring (521). The chest drainage tube (1) passes through the chest drainage tube fixing sleeve (53) and is locked between the left retaining ring (511) and the right retaining ring (521).

2. The chest drainage device according to claim 1, characterized in that: The left support fixing tube (51) and the right support fixing tube (52) are fastened together by a snap-fit ​​component (513); The buckling component (513) includes a buckling tube (5131) and an airbag (5132); a vent hole II (514) is provided inside the left support fixing tube (51) along its length direction; the buckling tube (5131) is fixedly disposed on the right side of the left support fixing tube (51), and the inside of the buckling tube (5131) communicates with the inside of the vent hole II (514); the airbag (5132) is fixedly disposed on the right end of the buckling tube (5131), and the inside of the buckling tube (5131) communicates with the inside of the airbag (5132); the right support fixing tube (5131 ... 2) A buckle hole (523) is provided at the position corresponding to the buckle tube (5131). A cavity (524) communicating with the buckle hole (523) is provided in the right support fixing tube (52). The buckle tube (5131) on the left support fixing tube (51) is inserted into the corresponding buckle hole (523) on the right support fixing tube (52). The airbag (5132) is located in the corresponding cavity (524). An inflation one-way valve (515) for controlling the inflation of the air vent II (514) and the airbag (5132) is provided on the left buckle ring (511).

3. A chest drainage device according to claim 2, characterized in that: A left connecting ring (516) is provided on the left outer side of the left retaining ring (511) and between the left support fixing tube (51) and the adjacent left fixing claw (54) and between the adjacent left fixing claw (54). A right connecting ring (525) is provided on the right outer side of the right retaining ring (521) and between the right support fixing tube (52) and the adjacent right fixing claw (55) and between the adjacent right fixing claw (55).

4. A chest drainage device according to claim 3, characterized in that: The left support fixing tube (51), right support fixing tube (52), left fixing claw (54) and right fixing claw (55) are provided with vent holes, and each vent hole is provided with a sealing plug (58).

5. A chest drainage device according to claim 4, characterized in that: It also includes sterile gauze (6), which is laid on the chest outside the chest drainage tube (1) and outside the surgical incision. The left support fixation tube (51), the right support fixation tube (52), the left fixation claw (54), the right fixation claw (55), the left connecting ring (516) and the right connecting ring (525) are all pressed on the sterile gauze (6), and the suction cups (56) on the outer ends of the left support fixation tube (51), the right support fixation tube (52), the left fixation claw (54) and the right fixation claw (55) are all located outside the sterile gauze (6).

6. A chest drainage device according to claim 5, characterized in that: A mechanical warning device (31) is provided on the inner wall of the water seal bottle (3), and a transparent observation tube (32) is provided on the upper part of the inner wall of the water seal bottle (3) along the circumference. The mechanical warning device (31) includes a guide cylinder (311), a float (312), a piercing needle (313), a support guide sleeve (314), and a liquid bag (315) storing colored liquid. The guide cylinder (311) is a transparent, hollow cylindrical structure. The guide cylinder (311) is set on the inner wall of the water seal bottle (3) and is perpendicular to the transparent observation tube (32). The float (312) is set inside the guide cylinder (311). The outer wall of the float (312) slides in conjunction with the inner wall of the guide cylinder (311). The piercing needle (313) is vertically set in the middle of the float (312). The top of the piercing needle (313) is a long, narrow needle tip. A support is provided near the top on the cross-section of the inner wall of the guide cylinder (311). The plate (316) is bent downward in the middle to form a horizontal guide groove (317). The upper surface of the support plate (316) gradually slopes downward towards the horizontal guide groove (317) to form a guide surface. The two ends of the horizontal guide groove (317) are connected to the inside of the transparent observation tube (32). The support guide sleeve (314) is vertically set in the middle of the horizontal guide groove (317). The bottom of the support guide sleeve (314) passes downward through the horizontal guide groove (317). The inner diameter of the support guide sleeve (314) is slightly smaller than or equal to the outer diameter of the puncture needle (313). The liquid bag (315) is placed in the guide tube (311) and pressed on the support plate (316) and the support guide sleeve (314).

7. A thoracic drainage device according to any one of claims 1 to 6, characterized in that: The mechanical warning device (31) also includes a diaphragm (318), which is laterally arranged on the inner wall of the guide cylinder (311) and close to the bottom end of the support guide sleeve (314). The diaphragm (318) is provided with a plurality of vent holes I (3181) with a diameter smaller than the outer diameter of the piercing needle (313).

8. A chest drainage device according to claim 7, characterized in that: The top of the support guide sleeve (314) is provided with a plurality of vertical guide grooves (3141) along the circumferential direction. The outer wall of the support guide sleeve (314) is provided with arc-shaped guide plates (3142) that correspond one-to-one with the vertical guide grooves (3141). The vertical guide grooves (3141) are located at the top of the concave surface of the corresponding arc-shaped guide plates (3142).

9. A chest drainage device according to claim 8, characterized in that: Multiple ventilation holes II (3111) are evenly distributed on the guide cylinder (311), and the top port of the guide cylinder (311) is recessed.

10. A thoracic drainage device according to claim 9, characterized in that: The outer surface of the water seal bottle (3) is provided with scale lines (33) for quick and accurate reading. The bottom of the water seal bottle (3) is provided with an anti-slip base (34). The left and right sides of the water seal bottle (3) are provided with carrying clips (35) near the top and bottom respectively. The two sides of the water seal bottle (3) near the bottle mouth are provided with hanging rope holes (36).

Images