A nursing drainage device

Abstract

This utility model belongs to the technical field of drainage devices, specifically a nursing drainage device, including a fluid collection box and a drainage tube. A negative pressure cylinder is fixedly connected to the outer wall of the fluid collection box, and an air inlet pipe is fixedly arranged between the negative pressure cylinder and the fluid collection box. An air inlet one-way valve is fixedly arranged on the surface of the air inlet pipe. A base is installed below the fluid collection box, and a pressure regulating component is installed on the surface of the base. The pressure regulating component includes a sealing piston and a mounting seat. The sealing piston is slidably installed inside the negative pressure cylinder. This utility model uses a drive motor to pull the sealing piston downward, thereby drawing gas from the fluid collection box into the negative pressure cylinder through the air inlet pipe, reducing the air pressure inside the fluid collection box. This allows the fluid collection box to draw out the accumulated fluid from the patient's body through the drainage tube, facilitating the drainage of the accumulated fluid from the patient's body. Compared with the prior art, there is no need to manually pull the sealing piston, improving the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of drainage device technology, specifically a nursing drainage device. Background Technology

[0002] Closed thoracic drainage is one of the most basic and commonly used treatment methods in cardiothoracic surgery and respiratory medicine, and it is also one of the life-saving critical care techniques. It is usually used for drainage in patients after open thoracotomy for diseases of the lungs, esophagus, and mediastinum. The main function of closed thoracic drainage is to remove pleural effusion and pneumothorax, restore and maintain negative pressure in the pleural cavity, maintain the normal position of the mediastinum, and promote lung re-expansion. It is of great significance in the treatment of patients with cardiac and great vessel trauma, pericardial diseases, congenital heart disease, and acquired valvular heart disease.

[0003] Currently, patients typically have pleural effusion drained through a drainage tube, and the drained fluid is collected in a collection box. Medical staff monitor the amount and color of the drained fluid to inform further treatment. However, with single-bottle chest drainage devices, the fluid level in the single-chamber collection increases as more fluid is drained. This rising level makes drainage more difficult, often resulting in some fluid remaining in the chest cavity, hindering proper drainage and delaying the patient's recovery. Therefore, single-bottle chest drainage devices are not ideal for general use.

[0004] Chinese Patent CN221154890U discloses a drainage device for cardiothoracic surgery, comprising a effusion box and a drainage tube. A suction tube communicating with the inner cavity of the effusion box is fixed to the upper side of the effusion box. A connector is provided at the end of the suction tube away from the effusion box, and one end of the drainage tube communicates with the inner cavity of the suction tube through the connector. A negative pressure assembly is provided on the side of the effusion box, including an air suction cylinder, one end of which is open. This drainage device for cardiothoracic surgery collects the effusion discharged by the patient through the effusion box. Simultaneously, the negative pressure assembly regulates the pressure within the effusion box, preventing increased effusion discharge and fluid level that could hinder drainage, thus facilitating the use of the device. Furthermore, the suction pressure of the device can be adjusted during use to prevent excessive suction pressure from causing trauma to the patient.

[0005] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: the device adjusts the air pressure inside the fluid collection box by manually pulling the sealing piston, which is inconvenient to use and needs to be improved; therefore, a nursing drainage device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, this utility model proposes a nursing drainage device.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The nursing drainage device of this utility model includes a sump and a drainage tube. A negative pressure cylinder is fixedly connected to the outer wall of the sump. An air inlet pipe is fixedly arranged between the negative pressure cylinder and the sump. An air inlet one-way valve is fixedly arranged on the surface of the air inlet pipe. A base is installed below the sump. A pressure regulating component is installed on the surface of the base. The pressure regulating component includes a sealing piston and a mounting seat. The sealing piston is slidably installed inside the negative pressure cylinder, and a T-shaped pull rod is fixedly connected to the bottom end of the sealing piston. The mounting seat is slidably installed on the surface of the base. A drive motor is fixedly connected to the top of the mounting seat. A lead screw is fixedly connected to the drive end of the drive motor. A U-shaped clamping plate is threadedly connected to the surface of the lead screw. A guide rod is provided through the surface of the clamping plate. The bottom end of the guide rod is fixedly connected to the mounting seat.

[0008] Preferably, the top of the negative pressure cylinder is fixedly provided with an air outlet, and the surface of the air outlet is fixedly provided with an air outlet one-way valve.

[0009] Preferably, the top of the liquid collection box is fixedly provided with an air extraction end, the other end of which is connected to a drainage pipe, and a valve is fixedly provided on the surface of the air extraction end.

[0010] Preferably, the card plate includes a plate, and one end of the plate has two slots distributed horizontally and vertically.

[0011] Preferably, a fixing component is installed on the surface of the base, mounting base, and liquid collection box. The fixing component includes a groove and a slot. The groove is formed on the surface of the base, and the liquid collection box is inserted into the groove. The slot is formed on the surface of the base, and L-shaped positioning plates are respectively formed on both sides of the slot. The lower side walls of the two positioning plates are threaded with a bidirectional lead screw, and the outer wall of the bidirectional lead screw is rotatably connected to the base.

[0012] Preferably, the fixing component further includes two positioning grooves, which are formed on the outer side wall of the liquid collection box.

[0013] Preferably, the upper sidewall of the positioning plate is fixedly provided with a positioning protrusion.

[0014] Preferably, one end of the bidirectional lead screw is fixedly connected to a second lead screw, and the second lead screw is threadedly connected to the mounting base.

[0015] The advantages of this utility model are:

[0016] 1. This utility model uses a drive motor to pull the sealing piston downward, thereby drawing gas from the effusion box into the negative pressure cylinder through the air inlet pipe, reducing the air pressure inside the effusion box. This allows the effusion box to extract the effusion from the patient's body through the drainage tube, facilitating the drainage of the effusion. Compared with the prior art, it eliminates the need for manual pulling of the sealing piston, improving the convenience of use.

[0017] 2. This utility model fixes the liquid collection box by rotating the bidirectional lead screw to insert the positioning protrusion into the positioning groove, thus preventing the liquid collection box from tipping over during use. The positioning plate can be opened by rotating the bidirectional lead screw in the opposite direction, making it easy to replace the liquid collection box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a sectional view of the base of this utility model;

[0021] Figure 3 This is a schematic diagram of the pressure regulating component of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning plate structure of this utility model.

[0024] In the diagram: 1. Liquid collection box; 2. Negative pressure cylinder; 3. Air inlet pipe; 4. Air inlet check valve; 5. Base; 6. Pressure regulating assembly; 61. Sealing piston; 62. Pull rod; 63. Mounting base; 64. Drive motor; 65. Lead screw one; 66. Clamping plate; 67. Guide rod; 7. Air outlet end; 8. Air outlet check valve; 9. Air extraction end; 10. Drainage pipe; 11. Valve; 12. Fixing assembly; 121. Groove; 122. Positioning groove; 123. Slot; 124. Positioning plate; 125. Positioning protrusion; 126. Bidirectional lead screw; 127. Lead screw two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] Example 1

[0027] Please see Figure 1-4 As shown, a nursing drainage device includes a fluid collection box 1 with internal negative pressure and a drainage tube 10. A negative pressure cylinder 2 is fixedly connected to the outer wall of the fluid collection box 1. An air inlet pipe 3 is fixedly installed between the negative pressure cylinder 2 and the fluid collection box 1. An air inlet one-way valve 4 is fixedly installed on the surface of the air inlet pipe 3. A base 5 is installed below the fluid collection box 1. A pressure regulating component 6 is installed on the surface of the base 5. The pressure regulating component 6 includes a sealing piston 61 and a mounting seat 63. The sealing piston 61 is slidably installed inside the negative pressure cylinder 2, and a T-shaped pull rod 62 is fixedly connected to the bottom end of the sealing piston 61. The mounting seat 63 is slidably installed... On the surface of the base 5, a drive motor 64 is fixedly connected to the top of the mounting base 63. A lead screw 65 is fixedly connected to the drive end of the drive motor 64. A U-shaped clamping plate 66 is threaded onto the surface of the lead screw 65. A guide rod 67 is provided through the surface of the clamping plate 66. The bottom end of the guide rod 67 is fixedly connected to the mounting base 63. The effusion box 1 is made of transparent material, and a pressure indicator is fixedly provided on the surface of the effusion box 1. The pressure indicator makes it easy for medical staff to see the air pressure inside the effusion box 1. A control module is fixedly provided on the surface of the base 5. The control module is electrically connected to the drive motor 64.

[0028] Specifically, the lever 62 is secured by the clamping plate 66, and the one-way air inlet valve 4 controls the one-way flow of gas from the effusion box 1 into the negative pressure cylinder 2. The drainage tube 10 is inserted into the patient's pleural cavity, and the effusion in the pleural cavity is drawn out by the negative pressure inside the effusion box 1. When the air pressure inside the effusion box 1 is insufficient, the controller controls the drive motor 64 to run. The drive motor 64 drives the lead screw 65 to rotate, and the lead screw 65 drives the clamping plate 66 to move downward. The downward movement of the clamping plate 66 pulls the lever 62 downward, and the downward movement of the lever 62 pulls the sealing piston 61 downward. Thus, the gas in the effusion box 1 is drawn into the negative pressure cylinder 2 through the air inlet pipe 3, reducing the air pressure inside the effusion box 1. This allows the effusion box 1 to draw out the effusion in the patient's body through the drainage tube 10, facilitating the drainage of the effusion in the patient's body. Compared with the existing technology, there is no need to manually pull the sealing piston 61, improving the convenience of use.

[0029] The top of the negative pressure cylinder 2 is fixedly provided with an air outlet 7, and an air outlet one-way valve 8 is fixedly provided on the surface of the air outlet 7.

[0030] Specifically, the one-way valve 8 is used to control the gas inside the negative pressure cylinder 2 to flow out unidirectionally from the outlet end 7. After the sealing piston 61 moves to the bottom, the drive motor 64 runs in reverse to drive the lead screw to rotate, so that the sealing piston 61 moves upward. The sealing piston 61 pushes the gas inside the negative pressure cylinder 2 out of the outlet end 7, so that the gas inside the liquid collection box 1 can be repeatedly extracted.

[0031] The top of the liquid collection box 1 is fixedly provided with a suction end 9, the other end of the suction end 9 is connected to the drainage pipe 10, and a valve 11 is fixedly provided on the surface of the suction end 9.

[0032] Specifically, the flow rate of the drainage tube 10 can be adjusted by the valve 11, thereby adjusting the suction pressure of the drainage tube 10 and avoiding trauma to the patient caused by the drainage tube 10 adsorbing patient tissue due to excessive suction pressure.

[0033] The card plate 66 includes a plate, one end of which has two slots distributed horizontally and vertically.

[0034] Specifically, during installation, the liquid collection box 1 is placed on the base 5, and then the mounting base 63 is slid to insert the bottom end of the pull rod 62 into the slot, so that the pull rod 62 is raised and lowered synchronously when the plate 66 is raised and lowered.

[0035] Example 2

[0036] For comparison with Example 1, please refer to Figure 5 As shown, this utility model provides another embodiment. A fixing component 12 is installed on the surface of the base 5, the mounting base 63 and the liquid collection box 1. The fixing component 12 includes a groove 121 and a slot 123. The groove 121 is opened on the surface of the base 5, and the liquid collection box 1 is inserted into the groove 121. The slot 123 is opened on the surface of the base 5. L-shaped positioning plates 124 are respectively opened on both sides of the slot 123. The lower side walls of the two positioning plates 124 are threaded with a bidirectional lead screw 126. The outer wall of the bidirectional lead screw 126 is rotatably connected to the base 5. The upper side wall of the positioning plate 124 is fixedly provided with a positioning protrusion 125. The fixing component 12 also includes two positioning grooves 122, which are opened on the outer side wall of the liquid collection box 1.

[0037] Specifically, during installation, the liquid collection box 1 is inserted into the groove 121. By rotating the bidirectional screw 126, the two positioning plates 124 are driven to move synchronously in opposite directions, so that the positioning plates 124 clamp the liquid collection box 1 and fix the liquid collection box 1. At the same time, the positioning protrusion 125 is inserted into the positioning groove 122 to improve the stability of fixing the liquid collection box 1 and prevent the liquid collection box 1 from tipping over during use. By rotating the bidirectional screw 126 in the opposite direction, the positioning plate 124 can be opened to facilitate the replacement of the liquid collection box 1.

[0038] One end of the bidirectional lead screw 126 is fixedly connected to a lead screw 127, which is threadedly connected to the mounting base 63.

[0039] Specifically, when the bidirectional lead screw 126 is rotated, it simultaneously drives the second lead screw 127 to rotate. Then, when the positioning plate 124 clamps the liquid collection box 1, the second lead screw 127 drives the mounting base 63 to move towards the negative pressure cylinder 2, thereby allowing the clamping plate 66 to engage with the pull rod 62, preventing the clamping plate 66 from falling off during use. When the bidirectional lead screw 126 is rotated in the opposite direction to open the positioning plate 124, it drives the mounting base 63 to slide in the opposite direction, causing the clamping plate 66 to automatically disengage from the pull rod 62 for convenient use.

[0040] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0041] Working principle: During installation, the liquid collection box 1 is inserted into the groove 121. Rotating the bidirectional screw 126 drives the two positioning plates 124 to move synchronously in opposite directions, clamping the liquid collection box 1 and fixing it in place. Simultaneously, the positioning protrusion 125 inserts into the positioning groove 122, improving the stability of the liquid collection box 1 and preventing it from tipping over during use. Reversing the rotation of the bidirectional screw 126 opens the positioning plates 124, facilitating the replacement of the liquid collection box 1. Simultaneously, rotating the bidirectional screw 126 also drives the second screw 127 to rotate. When the positioning plates 124 clamp the liquid collection box 1, the second screw 127 moves the mounting base 63 towards the negative pressure cylinder 2, causing the clamping plate 66 to engage with the pull rod 62, preventing them from detaching during use. Reversing the rotation of the bidirectional screw 126 opens the positioning plate 124, causing the mounting base 63 to slide in the opposite direction, automatically disengaging the clamping plate 66 from the pull rod 62 for easier use.

[0042] After the effusion box 1 is installed, the drainage tube 10 is inserted into the patient's chest cavity. The effusion in the chest cavity is aspirated by the negative pressure inside the effusion box 1. When the air pressure inside the effusion box 1 is insufficient, the controller controls the drive motor 64 to run. The drive motor 64 drives the lead screw 65 to rotate. The lead screw 65 drives the clamping plate 66 to move downward. The downward movement of the clamping plate 66 pulls the pull rod 62 downward. The downward movement of the pull rod 62 pulls the sealing piston 61 downward. Thus, the gas in the effusion box 1 is drawn into the negative pressure cylinder 2 through the air inlet pipe 3, reducing the air pressure inside the effusion box 1. This allows the effusion box 1 to aspirate the effusion in the patient's body through the drainage tube 10, facilitating the drainage of the effusion in the patient's body. There is no need to manually pull the sealing piston 61, improving the convenience of use.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A care drainage device comprising a collection bag (1) and a drainage tube (10), characterized in that: A negative pressure cylinder (2) is fixedly connected to the outer wall of the liquid collection box (1). An air inlet pipe (3) is fixedly installed between the negative pressure cylinder (2) and the liquid collection box (1). An air inlet one-way valve (4) is fixedly installed on the surface of the air inlet pipe (3). A base (5) is installed below the liquid collection box (1). A pressure regulating component (6) is installed on the surface of the base (5). The pressure regulating component (6) includes a sealing piston (61) and a mounting seat (63). The sealing piston (61) is slidably installed inside the negative pressure cylinder (2). A T-shaped pull rod (62) is fixedly connected to the bottom end of the sealing piston (61). The mounting base (63) is slidably mounted on the surface of the base (5). A drive motor (64) is fixedly connected to the top of the mounting base (63). A lead screw (65) is fixedly connected to the drive end of the drive motor (64). A U-shaped clamping plate (66) is threadedly connected to the surface of the lead screw (65). A guide rod (67) is provided through the surface of the clamping plate (66). The bottom end of the guide rod (67) is fixedly connected to the mounting base (63).

2. The wound drainage device of claim 1, wherein: The top of the negative pressure cylinder (2) is fixedly provided with an air outlet (7), and the surface of the air outlet (7) is fixedly provided with an air outlet one-way valve (8).

3. The wound drainage device of claim 1, wherein: The top of the liquid collection box (1) is fixedly provided with an air extraction end (9), the other end of the air extraction end (9) is connected to the drainage pipe (10), and a valve (11) is fixedly provided on the surface of the air extraction end (9).

4. The wound drainage device of claim 1, wherein: The card plate (66) includes a plate, one end of which has two slots distributed horizontally and vertically.

5. The wound drainage device of claim 1, wherein: The base (5), mounting base (63) and liquid collection box (1) are mounted with a fixing component (12). The fixing component (12) includes a groove (121) and a slot (123). The groove (121) is opened on the surface of the base (5). The liquid collection box (1) is inserted into the inside of the groove (121). The slot (123) is opened on the surface of the base (5). L-shaped positioning plates (124) are respectively opened on both sides of the slot (123). The lower side walls of the two positioning plates (124) are threaded with a double-acting screw (126). The outer wall of the double-acting screw (126) is rotatably connected to the base (5).

6. The wound drainage device of claim 5, wherein: The fixing component (12) also includes two positioning grooves (122), which are formed on the outer side wall of the liquid collection box (1).

7. The wound drainage device of claim 5, wherein: The upper sidewall of the positioning plate (124) is fixedly provided with a positioning protrusion (125).

8. The wound drainage device of claim 5, wherein: One end of the bidirectional lead screw (126) is fixedly connected to a second lead screw (127), and the second lead screw (127) is threadedly connected to the mounting base (63).

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