Postoperative chest drainage fixing device for thoracic surgery department

Abstract

The utility model belongs to the technical field of medical auxiliary equipment, and particularly relates to a thoracic surgery postoperative chest drainage fixing device which comprises a shell, and the back face of the shell is connected with a surgery binding belt; the sliding grooves are formed in the side face of the shell in an annular distribution mode, clamping blocks are connected into the sliding grooves in a sliding mode, the clamping blocks are hollow, and through holes are evenly formed in the arc-shaped ends of the clamping blocks; the adjusting mechanism is arranged on the shell, and when the adjusting mechanism operates, the multiple clamping blocks are driven to be close to or away from each other; the negative pressure mechanism is connected to the clamping block; the guide rods are annularly distributed and connected to the outer surface of the shell; and the limiting mechanism is arranged at the guide rod. The drainage tube can be effectively prevented from falling off, the risk of damage to the drainage tube material is reduced, smooth discharge of gas and blood in the thoracic cavity is guaranteed, postoperative infection can be prevented, and wound healing is promoted.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary equipment technology, specifically relating to a postoperative chest drainage and fixation device for thoracic surgery. Background Technology

[0002] A thoracic surgical drainage tube is a medical device that is inserted into the pleural cavity to continuously drain gas, pus, or blood, in order to prevent postoperative infection and promote wound healing.

[0003] To ensure the stable extraction of gas and blood from the pleural cavity, a fixation device is typically used to secure the drainage tube. For example, a device for preventing the drainage tube from falling off during thoracentesis (application number CN202323001862.X) uses a strap with a female Velcro fastener to adhere to a garment, allowing the garment to be fixed to the patient's chest. A slider is then moved, aligning its opening with the location in the chest cavity where the drainage tube needs to be inserted. A first screw is rotated via a first torsion handle, causing a first arc-shaped clamp to slide downwards. This clamps the drainage tube with both the first and second arc-shaped clamps, ensuring a stable fixation. This effectively solves the problem of drainage tubes in thoracic surgery becoming dislodged due to inadequate fixation with medical straps or tape.

[0004] However, in practical applications, drainage tubes are typically made of flexible tubing. The aforementioned device secures the drainage tube using two arc-shaped clamps. Excessive clamping force can deform the drainage tube, hindering the efficient removal of air and blood from the pleural cavity; conversely, insufficient clamping force makes it difficult to ensure stable fixation of the drainage tube. Therefore, this device requires further optimization.

[0005] Practical content

[0006] The purpose of this invention is to provide a postoperative chest drainage fixation device for thoracic surgery, which can not only effectively prevent the drainage tube from falling off, but also reduce the risk of damage to the drainage tube material, thereby ensuring the smooth drainage of gas and blood in the thoracic cavity, helping to prevent postoperative infection and promote wound healing.

[0007] The specific technical solution adopted in this utility model is as follows:

[0008] A postoperative chest drainage and fixation device for thoracic surgery includes a housing, the back of which is connected to a binding strap;

[0009] A sliding groove is provided on the side of the housing in a ring-shaped distribution. A clamping block is slidably connected in the sliding groove. The clamping block is hollow and has through holes evenly distributed at its arc-shaped end.

[0010] An adjustment mechanism is provided on the housing. When the adjustment mechanism is in operation, it drives multiple clamping blocks to move closer or further apart from each other.

[0011] A negative pressure mechanism is connected to the clamping block. When the negative pressure mechanism is in operation, it causes the through hole to generate suction for adsorption.

[0012] Guide rods, which are connected to the outer surface of the housing in a ring-shaped arrangement;

[0013] A limiting mechanism is provided at the guide rod.

[0014] In a preferred embodiment, the adjusting mechanism includes a rotating rod rotatably connected to the housing, a worm gear fixedly sleeved on the rotating rod, a drive disk rotatably connected inside the housing, a turbine fixedly connected to the bottom surface of the drive disk, and guide grooves distributed in an annular pattern on the top surface of the drive disk. A cylinder is slidably connected in the guide groove, and the upper end of the cylinder is fixedly connected to a clamping block.

[0015] In a preferred embodiment, both ends of the rotating rod are provided with rotating handles, and the rotating handles are provided with anti-slip grooves.

[0016] In a preferred embodiment, the negative pressure mechanism includes a hollow cylinder connected in a ring on the outer surface of the shell. A movable rod is inserted into one end of the hollow cylinder, and a piston plate is fixedly connected to one end of the movable rod. A movable plate is fixedly connected to the other end of the movable rod. A spring is sleeved on one end of the movable rod. An air pipe is connected to one end of the hollow cylinder and is connected to a clamping block. Two vertical rods are fixedly connected to the movable plate, and an arc-shaped plate is fixedly connected between every two corresponding vertical rods.

[0017] In a preferred embodiment, the two ends of the trachea are rigid tubes, and the middle section is a retractable flexible tube.

[0018] In a preferred embodiment, the limiting mechanism includes locking grooves arranged in an array on the guide rod. A movable groove is provided on the arc plate. A pull rod is inserted into one end of the movable groove, and a locking block is inserted into the other end. The locking block is fixedly connected to the pull rod, and a compression spring is sleeved on one end of the pull rod located in the movable groove.

[0019] The technical effects achieved by this utility model are as follows:

[0020] This invention utilizes a worm gear transmission system combined with a self-locking mechanism to ensure that the clamps firmly secure the drainage tube initially without loosening due to external forces. Furthermore, the negative pressure adsorption principle further enhances the fixation of the drainage tube, avoiding the deformation or insecure clamping issues that can occur with traditional clamping methods. This approach not only effectively prevents the drainage tube from falling out but also reduces the risk of damage to the drainage tube material, thereby ensuring the smooth drainage of gas and blood from the pleural cavity, helping to prevent postoperative infection and promote wound healing.

[0021] This practical and unique suction locking mechanism allows users to perform suction operations by continuously pressing down the arc-shaped plate, ensuring sufficient negative pressure to hold the drainage tube in place. Simultaneously, releasing the fixation is as simple as pulling the lever to disengage the locking block from the locking groove and moving the arc-shaped plate upwards to complete the reset operation. This design greatly simplifies the fixation and release process, improving the work efficiency of medical staff. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a practical sectional view;

[0024] Figure 3 This is a schematic diagram showing the connection between the drive disk and the clamping block in this practical application.

[0025] Figure 4 This is a partial structural diagram of the practical negative pressure mechanism;

[0026] Figure 5 This is a schematic diagram of the structure of this practical limiting mechanism;

[0027] Figure 6 This is a practical book Figure 5 An enlarged schematic diagram of part A shown in the figure.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Shell; 2. Binding strap; 3. Sliding groove; 4. Clamping block; 41. Through hole; 5. Adjustment mechanism; 6. Negative pressure mechanism; 7. Guide rod; 8. Limiting mechanism;

[0030] 501. Rotary rod; 502. Worm gear; 503. Drive disc; 504. Turbine; 505. Guide groove; 506. Cylindrical rod;

[0031] 601. Hollow cylinder; 602. Movable rod; 603. Piston plate; 604. Spring; 605. Air pipe; 606. Movable plate; 607. Vertical rod; 608. Curved plate;

[0032] 801. Lock groove; 802. Movable groove; 803. Pull rod; 804. Lock block; 805. Compression spring. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0036] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0037] Please see the appendix Figures 1 to 6 As shown, this utility model provides a postoperative chest drainage and fixation device for thoracic surgery, including a housing 1, with a binding strap 2 connected to the back of the housing 1;

[0038] The sliding groove 3 is provided on the side of the housing 1 in a ring-shaped distribution. A clamping block 4 is slidably connected in the sliding groove 3. The clamping block 4 is hollow and has through holes 41 evenly distributed at the arc-shaped end of the clamping block 4.

[0039] Adjustment mechanism 5 is mounted on housing 1. When adjustment mechanism 5 is in operation, it drives multiple clamping blocks 4 to move closer or further apart from each other.

[0040] The negative pressure mechanism 6 is connected to the clamping block 4. When the negative pressure mechanism 6 is in operation, it causes the through hole 41 to generate suction for adsorption.

[0041] Guide rods 7 are connected to the outer surface of housing 1 in a ring-shaped arrangement;

[0042] Limiting mechanism 8 is located at guide rod 7.

[0043] In this embodiment, the shell 1 is preferably made of medical-grade plastic, which has good biocompatibility and corrosion resistance, ensuring the safety of the device when in contact with the human body. The binding strap 2 is designed with an adjustable length to adapt to different patient body shapes, and its surface is covered with a soft pad to reduce friction and pressure on the patient's skin. The clamp 4 is made of medical-grade stainless steel, ensuring the durability of the device and its ease of sterilization. The through holes 41 are evenly sized and distributed to ensure uniform adsorption onto the drainage tube when negative pressure is generated, while avoiding damage to the drainage tube. The adjustment mechanism 5 can easily control the movement of the clamp 4 by rotation, achieving a stable fixation of the drainage tube.

[0044] In a preferred embodiment, please refer to Figure 2 and Figure 3 The adjusting mechanism 5 includes a rotating rod 501, which is rotatably connected to the housing 1. A worm gear 502 is fixedly sleeved on the rotating rod 501. A drive disk 503 is also rotatably connected inside the housing 1. A turbine 504 is fixedly connected to the bottom surface of the drive disk 503. A guide groove 505 is provided in a ring on the top surface of the drive disk 503. A cylinder 506 is slidably connected in the guide groove 505, and the upper end of the cylinder 506 is fixedly connected to the clamping block 4.

[0045] In this embodiment, the drainage tube must first be passed through the multiple clamping blocks 4. Then, the operator should rotate the rotating rod 501, which drives the worm gear 502 to rotate. The worm gear 502 and the turbine gear 504 interact through meshing transmission, thereby driving the drive disc 503 to rotate. During the rotation of the drive disc 503, the guide groove 505 on its top surface contacts the cylinder 506 and generates an interaction force. This interaction force causes the clamping blocks 4 fixedly connected to the cylinder 506 to move along the sliding groove 3. The movement of the clamping blocks 4 will continue until their arc-shaped ends completely enclose the drainage tube, at which point the drainage tube is initially fixed. Furthermore, there is a self-locking mechanism between the worm gear 502 and the turbine gear 504 to ensure that the device will not loosen due to external forces after the drainage tube is fixed.

[0046] Secondly, please refer to again Figure 1 Both ends of the rotating rod 501 are equipped with rotating handles, and anti-slip grooves are provided on the rotating handles.

[0047] In this embodiment, both ends of the rotating rod 501 are equipped with rotating handles, and the rotating handles have anti-slip grooves. This design allows the operator to operate the rotating rod 501 more steadily and conveniently, ensuring good grip even when wearing gloves. In addition, the presence of anti-slip grooves further improves the safety of operation, preventing accidental rotation due to slippage, and ensuring the accuracy and stability of the drainage tube fixing process.

[0048] Secondly, please refer to the following as well. Figure 1 and Figure 4 The negative pressure mechanism 6 includes a hollow cylinder 601, which is connected to the outer surface of the housing 1 in a ring. A movable rod 602 is inserted into one end of the hollow cylinder 601. A piston plate 603 is fixedly connected to one end of the movable rod 602. A movable plate 606 is fixedly connected to the other end of the movable rod 602. A spring 604 is sleeved on one end of the movable rod 602. An air pipe 605 is connected to one end of the hollow cylinder 601 and is connected to the clamping block 4. Two vertical rods 607 are fixedly connected to the movable plate 606. An arc-shaped plate 608 is fixedly connected between each pair of corresponding vertical rods 607. The two ends of the air pipe 605 are rigid pipes, and the middle section is a retractable flexible pipe.

[0049] In this embodiment, after the drainage tube is initially fixed, the user can press the arc-shaped plate 608. This action will cause the vertical rod 607 and the movable plate 606 to move together. The movement of the movable plate 606 will push the movable rod 602 and the piston plate 603 to move, thereby drawing air out of the hollow cylinder 601. During the air extraction process, the spring 604 will be compressed. The hollow cylinder 601 draws air through the air pipe 605, creating a negative pressure in the cavity of the clamping block 4. Due to the presence of the through hole 41, the negative pressure will generate suction on the clamping block 4, thereby adsorbing the drainage tube. Through this initial clamping and subsequent adsorption, the drainage tube is effectively fixed, preventing loosening or falling off.

[0050] In a preferred embodiment, please refer to Figure 5 and Figure 6 The limiting mechanism 8 includes a locking groove 801, which is arranged in an array on the guide rod 7. The arc plate 608 has a movable groove 802. A pull rod 803 is inserted into one end of the movable groove 802, and a locking block 804 is inserted into the other end. The locking block 804 is fixedly connected to the pull rod 803. A compression spring 805 is sleeved on one end of the pull rod 803 located in the movable groove 802.

[0051] In this embodiment, when the arc-shaped plate 608 moves downward along the guide rod 7, the inclined surface at the lower end of the locking block 804 will be abutted by the locking groove 801, causing the locking block 804 to retract into the movable groove 802 and compress the compression spring 805. When the locking block 804 moves to the next locking groove 801, under the restoring force of the compression spring 805, the locking block 804 will be inserted into the locking groove 801. Through this operation, the user can continuously press down the arc-shaped plate 608, thereby driving the piston plate 603 to move along the hollow cylinder 601 to perform the air extraction operation. When it is necessary to release the fixation, the user pulls the pull rod 803 to disengage the locking block 804 from the locking groove 801 and compresses the compression spring 805. Subsequently, the user can pull the arc-shaped plate 608 upward to reset it. After reset, the through hole 41 will lose its suction force, and then the rotating rod 501 can be rotated in the opposite direction to make the clamping blocks 4 move away from each other, and the drainage tube can be easily removed.

[0052] The working principle of this utility is as follows:

[0053] Initial Fixation: When it is necessary to fix the drainage tube after thoracic surgery, the operator first passes the drainage tube through the annular space formed by multiple clamps 4. By rotating the rotating rod 501 located on the housing 1, the rotating rod 501 drives the worm gear 502 to rotate. The worm gear 502 meshes with the turbine 504, causing the turbine 504 and its connected drive disc 503 to rotate together. Under the action of the guide groove 505 on the top of the drive disc 503 and the cylinder 506 fixed on the clamps 4, the multiple clamps 4 are forced to move inward and wrap around the drainage tube, achieving initial fixation of the drainage tube. In addition, the self-locking mechanism between the worm gear 502 and the turbine 504 ensures that the clamps 4 will not loosen even under external force.

[0054] Negative pressure adsorption: To ensure the drainage tube does not loosen or fall off due to any accidents, after initial fixation, the operator presses the arc-shaped plate 608, which triggers a series of actions: the downward pressure of the arc-shaped plate 608 moves the vertical rod 607 and the movable plate 606, which in turn pushes the movable rod 602 and the piston plate 603 to move within the hollow cylinder 601. This process draws air from the hollow cylinder 601 and transmits it to the internal space of the clamping block 4 via the air pipe 605, creating suction at the through hole 41, further enhancing the fixation effect on the drainage tube. The spring 604 is compressed during this process to help reset it when the fixation is released.

[0055] Limit locking: During the pressing of the arc-shaped plate 608, the locking block 804 on it engages with the locking groove 801 on the guide rod 7, ensuring that it remains firmly in a specific position with each press. The locking state is only released when the user actively pulls the lever 803 to disengage the locking block 804 from the locking groove 801. This design not only helps maintain a stable negative pressure environment but also facilitates the operator's control over the opening and closing of the fixing device.

[0056] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A postoperative chest drainage and fixation device for thoracic surgery, characterized in that: Includes a housing (1), the back of which is connected to a binding strap (2); The sliding groove (3) is opened on the side of the housing (1) in a ring-shaped distribution. A clamping block (4) is slidably connected in the sliding groove (3). The clamping block (4) is hollow and has through holes (41) evenly distributed at the arc-shaped end of the clamping block (4). Adjustment mechanism (5), which is disposed on housing (1), and when the adjustment mechanism (5) is in operation, it drives multiple clamps (4) to move closer or further apart from each other; The negative pressure mechanism (6) is connected to the clamp (4). When the negative pressure mechanism (6) is in operation, it causes the through hole (41) to generate suction for adsorption. Guide rods (7) are connected to the outer surface of the housing (1) in a ring-shaped arrangement; A limiting mechanism (8) is provided at the guide rod (7).

2. The postoperative chest drainage and fixation device according to claim 1, characterized in that: The adjustment mechanism (5) includes a rotating rod (501), which is rotatably connected to the housing (1). A worm gear (502) is fixedly sleeved on the rotating rod (501). A drive disk (503) is also rotatably connected inside the housing (1). A turbine (504) is fixedly connected to the bottom surface of the drive disk (503). A guide groove (505) is provided in a ring on the top surface of the drive disk (503). A cylinder (506) is slidably connected inside the guide groove (505), and the upper end of the cylinder (506) is fixedly connected to the clamping block (4).

3. The postoperative chest drainage and fixation device according to claim 2, characterized in that: Both ends of the rotating rod (501) are provided with rotating handles, and anti-slip grooves are provided on the rotating handles.

4. The postoperative chest drainage and fixation device according to claim 1, characterized in that: The negative pressure mechanism (6) includes a hollow cylinder (601), which is connected to the outer surface of the shell (1) in a ring. A movable rod (602) is inserted into one end of the hollow cylinder (601). A piston plate (603) is fixedly connected to one end of the movable rod (602). A movable plate (606) is fixedly connected to the other end of the movable rod (602). A spring (604) is sleeved on one end of the movable rod (602). An air pipe (605) is connected to one end of the hollow cylinder (601), and the air pipe (605) is connected to the clamping block (4). Two vertical rods (607) are fixedly connected to the movable plate (606), and an arc plate (608) is fixedly connected between each pair of corresponding vertical rods (607).

5. The postoperative chest drainage and fixation device according to claim 4, characterized in that: The two ends of the trachea (605) are rigid tubes, and the middle section is a retractable flexible tube.

6. The postoperative chest drainage and fixation device according to claim 4, characterized in that: The limiting mechanism (8) includes a locking groove (801), which is arranged in an array on the guide rod (7). The arc plate (608) has a movable groove (802). A pull rod (803) is inserted into one end of the movable groove (802), and a locking block (804) is inserted into the other end. The locking block (804) is fixedly connected to the pull rod (803). A compression spring (805) is sleeved on one end of the pull rod (803) located in the movable groove (802).

Images