Wound continuous negative pressure drainage device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a wound continuous negative pressure drainage device, a brake mechanism is arranged on the other side of a cavity of a control shell, an output shaft of the brake mechanism is connected with a negative pressure drainage mechanism, negative pressure rollers for extruding a negative pressure pipeline are arranged at the two ends of a support of a rotating frame in a diagonal mode, and the negative pressure drainage mechanism is connected with the negative pressure drainage mechanism. Effusion extrusion blocks for extruding the negative pressure pipeline are arranged at the other two ends of the bracket of the rotating frame in a diagonal manner. The braking mechanism is used as a driving source to drive the negative pressure roller and the hydrops extrusion block in the negative pressure drainage mechanism to rotate circularly, while rotating, the negative pressure pipeline is rotationally extruded, air in the negative pressure pipeline is circularly extruded out, the continuous negative pressure drainage effect is achieved, the pressure suction force is provided by means of mechanical force and is not affected by the drainage amount, and the negative pressure drainage effect is good. When the drainage tube is blocked, the rotating speed can be adjusted, the negative pressure attraction force is improved, and meanwhile the negative pressure drainage efficiency is not affected when the wound cannot be closed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a continuous negative pressure drainage device for wounds. Background Art

[0002] Adequate wound drainage is a key factor in promoting wound healing and avoiding infection after surgery. At present, the commonly used drainage devices in clinical practice are ordinary drainage bags connected to drainage tubes and negative pressure drainage balls with one-way valves, both of which can play a good drainage role. Compared with ordinary drainage bags, negative pressure drainage balls can provide continuous negative pressure suction force, greatly improving drainage efficiency.

[0003] However, during the use of existing drainage bags, as the drainage volume gradually increases, the negative pressure suction force gradually decreases, and the drainage efficiency decreases accordingly. In addition, when blood clots or fibrous connective tissue appear in the drainage tube, the negative pressure suction force provided by the negative pressure drainage ball is blocked, and effective drainage is no longer possible. And if the wound cannot be sutured tightly enough, the negative pressure drainage ball cannot provide effective negative pressure, and the drainage efficiency is no different from that of an ordinary drainage bag. To this end, those skilled in the art provide a continuous negative pressure drainage device for wounds to solve the problems raised in the above background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide a continuous negative pressure wound drainage device, which can effectively solve the problem of low efficiency of draining fluid accumulated in the wound in the existing wound drainage devices in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a continuous negative pressure drainage device for wounds, comprising a control shell;

[0006] An electric control module is disposed on one side of the chamber of the control shell, and the electric control module is conductively connected to a switch control module that passes through the control shell;

[0007] A brake mechanism is provided on the other side of the chamber of the control housing, and an output shaft of the brake mechanism is connected to the negative pressure drainage mechanism;

[0008] The negative pressure drainage mechanism includes a negative pressure pump, a negative pressure pipeline is surrounded by the inner wall of the chamber of the negative pressure pump, and a rotating frame is rotatably connected to the middle of the chamber of the negative pressure pump, negative pressure rollers for squeezing the negative pressure pipeline are diagonally arranged at both ends of the rotating frame, and liquid extrusion blocks for squeezing the negative pressure pipeline are diagonally arranged at the other two ends of the rotating frame.

[0009] As a further solution of the utility model: a sealing cover is installed on the front side of the pump body of the negative pressure pump, and a traction groove adapted to the negative pressure pipeline is opened on one side of the pump body of the negative pressure pump.

[0010] As a further solution of the present invention: the negative pressure pipeline is a hose structure.

[0011] As a further solution of the utility model: the braking mechanism includes a support frame, one side of the support frame is rotatably connected to a transmission shaft opposite to the rotating frame, and the other side of the support frame is provided with a transmission motor horizontally opposite to the transmission shaft, and the transmission shaft and the transmission motor are connected by a transmission belt.

[0012] As a further solution of the utility model: a pulley A is provided at the output end of the transmission motor, a pulley B is provided at the middle part of the shaft of the transmission shaft, and the pulley A and the pulley B are connected by a transmission belt.

[0013] As a further solution of the utility model: a heat exhaust fan is installed on the shell back plate of the control shell.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When the negative pressure drainage device of the utility model is in use, a braking mechanism is used as a driving source to drive the negative pressure roller and the effusion squeezing block in the negative pressure drainage mechanism to rotate cyclically. While rotating, the negative pressure pipeline is rotated and squeezed to circulate and squeeze out the air inside, thereby playing a role of continuous negative pressure drainage. The pressure suction force is provided by mechanical force and is not affected by the drainage volume. When the drainage tube is blocked, the rotation speed can be adjusted to improve the negative pressure attraction. At the same time, when the wound cannot be closed, the negative pressure drainage efficiency is not affected. While the wound drainage efficiency is high, it is more flexible and adaptable on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a continuous negative pressure drainage device for wounds according to the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a continuous negative pressure drainage device for wounds according to the utility model;

[0018] Figure 3 This is a schematic structural diagram of a negative pressure drainage mechanism in a continuous negative pressure drainage device for wounds of the utility model;

[0019] Figure 4 It is a schematic plan view of a negative pressure drainage mechanism in a continuous negative pressure drainage device for wounds of the utility model;

[0020] Figure 5 The utility model is a structural schematic diagram of a brake mechanism in a continuous negative pressure drainage device for wounds.

[0021] In the figure: 1. control shell; 2. switch control module; 3. negative pressure drainage mechanism; 31. negative pressure pump; 32. sealing cover; 33. traction slot; 34. negative pressure pipeline; 35. rotating frame; 36. negative pressure roller; 37. accumulated liquid extrusion block; 4. electronic control module; 5. braking mechanism; 51. support frame; 52. transmission shaft; 53. transmission motor; 54. pulley A; 55. transmission belt; 56. pulley B; 6. heat exhaust fan. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Please refer to Figure 1-5 As shown, a continuous negative pressure drainage device for wounds includes a control shell 1, an electric control module 4 is arranged on one side of the chamber of the control shell 1, and the electric control module 4 is conductively connected to a switch control module 2 that passes through the control shell 1. Based on the electrical combination of the electric control module 4 and the switch control module 2, the opening and closing switch of the negative pressure drainage device and the drainage size are controlled.

[0026] A braking mechanism 5 is provided on the other side of the chamber of the control shell 1. The braking mechanism 5 includes a support frame 51. One side of the support frame 51 is rotatably connected with a transmission shaft 52 opposite to the rotating frame 35, and the other side of the support frame 51 is provided with a transmission motor 53 horizontally opposite to the transmission shaft 52. The transmission shaft 52 and the transmission motor 53 are connected by a transmission belt 55. A pulley A54 is provided at the output end of the transmission motor 53, and a pulley B56 is provided in the middle of the shaft of the transmission shaft 52. The pulley A54 is connected with the pulley B56 by the transmission belt 55. By controlling the transmission motor 53 to work, the pulley A54 is driven to rotate, and the transfer transmission of the transmission belt 55 is used to drive the pulley B56 to rotate, and then the transmission shaft 52 is driven to rotate, which serves as a driving source to drive the negative pressure drainage mechanism 3 to work, generate negative pressure suction, and continuously extract the fluid accumulated in the wound under negative pressure.

[0027] The output shaft of the braking mechanism 5 is connected to the negative pressure drainage mechanism 3, which includes a negative pressure pump 31. A cover 32 is installed on the front side of the pump body of the negative pressure pump 31, and a traction groove 33 compatible with the negative pressure pipeline 34 is opened on one side of the pump body of the negative pressure pump 31. After the cover 32 is opened, the negative pressure pipeline 34 is installed on the inner wall of the negative pressure pump 31 along the rotation direction of the negative pressure roller 36 and the accumulated fluid squeezing block 37, and the negative pressure pipeline 34 is pulled out from the traction groove 33, and then the cover 32 is closed, so that one end of the negative pressure pipeline 34 is connected to the patient's wound, and the other end is connected to the waste liquid container, so that the patient's wound drainage tube, the negative pressure pipeline 34, and the waste liquid container are in a conductive state, and the accumulated fluid in the wound is negatively drained and collected.

[0028] A rotating frame 35 is rotatably connected to the middle of the chamber of the negative pressure pump 31, and negative pressure rollers 36 for squeezing the negative pressure pipeline 34 are arranged diagonally at both ends of the bracket of the rotating frame 35, and accumulated liquid squeezing blocks 37 for squeezing the negative pressure pipeline 34 are arranged diagonally at the other two ends of the bracket of the rotating frame 35. The negative pressure pipeline 34 is a hose structure. By setting the negative pressure pipeline 34 as a hose structure, the negative pressure pipeline 34 can be deformed under the squeezing action of the negative pressure roller 36 and the accumulated liquid squeezing block 37, thereby squeezing out the negative pressure of the air inside it, and squeezing out the accumulated liquid extracted by the negative pressure.

[0029] The shell back plate of the control shell 1 is connected to be equipped with a heat exhaust fan 6. By arranging the heat exhaust fan 6 on the control shell 1, the mechanical heat generated by the internal operation of the negative pressure drainage device can be extracted and dissipated, thereby ensuring the working stability of the negative pressure drainage device.

[0030] The working principle of the utility model is as follows: when using the negative pressure drainage device to perform negative pressure drainage on the accumulated fluid in the wound, firstly, the negative pressure pipeline 34 is installed on the inner wall of the negative pressure pump 31 along the rotation direction of the negative pressure roller 36 and the accumulated fluid squeezing block 37, and the negative pressure pipeline 34 is pulled out from the traction slot 33, so that one end of it is connected to the patient's wound, and the other end is connected to the waste liquid container, so that a conductive state is formed between the patient's wound drainage tube, the negative pressure pipeline 34, and the waste liquid container, and the accumulated fluid in the wound is drained and collected by negative pressure, and then the switch of the negative pressure drainage device is controlled by the electrical combination of the electric control module 4 and the switch control module 2, and then the transmission motor 53 is controlled to work, and the transmission shaft 52 is driven to rotate by the rotation of the pulley A54, the transmission belt 55, and the transmission combination of the pulley B56 as the driving source to drive the negative pressure The rotating frame 35 in the drainage mechanism 3 is rotated and braked. The rotation brake of the rotating frame 35 drives the negative pressure roller 36 and the fluid extrusion block 37 to rotate. The negative pressure roller 36 continuously squeezes the air inside the negative pressure pipeline 34 to form a negative pressure state inside the negative pressure pipeline 34, and continuously extracts the accumulated fluid in the wound with negative pressure. The accumulated fluid is synchronously squeezed by the fluid extrusion block 37 to extract the accumulated fluid with negative pressure inside the negative pressure pipeline 34, and the accumulated fluid is continuously squeezed and pushed out. It replaces the traditional method of relying on the self-absorption of the negative pressure bag. The suction force is provided by mechanical force and is not affected by the drainage volume. When the drainage tube is blocked, the rotation speed is adjusted to increase the negative pressure attraction force to ensure the high efficiency of negative pressure extraction. At the same time, when the wound cannot be closed, negative pressure suction can also be directly performed. The wound drainage efficiency is higher and the flexibility and adaptability are better.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wound continuous negative pressure drainage device, characterized in that: It includes a control housing (1); An electric control module (4) is provided on one side of the chamber of the control housing (1), and the electric control module (4) is conductively connected to a switch control module (2) that passes through the control housing (1); A brake mechanism (5) is provided on the other side of the chamber of the control housing (1), and an output shaft of the brake mechanism (5) is connected to the negative pressure drainage mechanism (3); The negative pressure drainage mechanism (3) comprises a negative pressure pump (31), a negative pressure pipeline (34) is surrounded by the inner wall of the chamber of the negative pressure pump (31), and a rotating frame (35) is rotatably connected to the middle of the chamber of the negative pressure pump (31), negative pressure rollers (36) for squeezing the negative pressure pipeline (34) are arranged diagonally at both ends of the bracket of the rotating frame (35), and effusion squeezing blocks (37) for squeezing the negative pressure pipeline (34) are arranged diagonally at the other two ends of the bracket of the rotating frame (35).

2. A wound continuous negative pressure drainage device according to claim 1, characterized in that: A sealing cover (32) is installed on the front side of the pump body of the negative pressure pump (31), and a traction groove (33) adapted to the negative pressure pipeline (34) is opened on one side of the pump body of the negative pressure pump (31).

3. A wound continuous negative pressure drainage device according to claim 1, characterized in that: The negative pressure pipeline (34) is a hose structure.

4. A wound continuous negative pressure drainage device according to claim 1, characterized in that: The braking mechanism (5) comprises a support frame (51), one side of the support frame (51) is rotatably connected to a transmission shaft (52) opposite to the rotating frame (35), and the other side of the support frame (51) is provided with a transmission motor (53) horizontally opposite to the transmission shaft (52), and the transmission shaft (52) and the transmission motor (53) are connected to each other by a transmission belt (55).

5. A wound continuous negative pressure drainage device according to claim 4, characterized in that: A pulley A (54) is provided at the output end of the transmission motor (53), a pulley B (56) is provided at the middle of the shaft of the transmission shaft (52), and the pulley A (54) and the pulley B (56) are connected to each other through a transmission belt (55).

6. A wound continuous negative pressure drainage device according to claim 1, characterized in that: A heat exhaust fan (6) is installed on the shell back plate of the control shell (1).

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