A wound irrigation and drainage device

By designing a wound irrigation and drainage device that uses saline solution to drive the brush bristles to rotate, combining irrigation and drainage functions, the problem of removing pus and necrotic tissue from wound crevices is solved, achieving efficient cleaning and convenient operation.

CN116421812BActive Publication Date: 2026-04-03CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies are insufficient to fully remove pus and necrotic tissue from the gaps in wound tissue, and conventional irrigation methods are inefficient.

Method used

A wound irrigation and drainage device was designed, which combines an irrigation tube, a brush box and a control mechanism. The brush bristles are driven to rotate by the flow rate of physiological saline, and the brush head is used to deeply clean the wound gaps. The drainage tube is used to suck out the dirt.

Benefits of technology

It improves wound cleaning efficiency and ease of operation, effectively removing pus and necrotic tissue from wound crevices while keeping the bristles clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a wound irrigation and drainage device, including an irrigation tube, a brush box, and a control mechanism. One end of the irrigation tube is the irrigation end, and the other end is the inlet end. A notch is formed on one side of the irrigation end, and a drainage tube is provided on one side of the irrigation tube. The brush box is located on the side of the irrigation end outside the notch. A rotating column is rotatably mounted inside the brush box, and a turntable is mounted on the rotating column. One edge of the turntable passes through the notch and is located within the cavity of the irrigation end. One side of the rotating column extends out of the brush box and is equipped with a brush head, the surface of which is covered with multiple bristles. The control mechanism is used to deliver physiological saline to the inlet end and to provide negative pressure suction for the drainage tube. This invention utilizes the flow rate of physiological saline through the irrigation tube to provide a continuous power source for the rotation of the bristles. As long as there is water flow in the irrigation tube, the bristles can be driven to rotate. Regular cleaning of the irrigation tube and deep cleaning of the bristles can be performed and stopped simultaneously, greatly improving wound cleaning efficiency and ease of operation.
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Description

Technical Field

[0001] This invention relates to the field of wound care, and more specifically to a wound irrigation and drainage device. Background Technology

[0002] An open wound is a wound in which the internal tissues of the injured area are connected to the outside. Open wounds are susceptible to infection, pus discharge, and even necrosis due to the influence of the external environment. To prevent further deterioration of the wound infection, it is necessary to promptly remove pus and necrotic tissue from the patient's wound. Currently, medical staff typically treat wounds using a combination of irrigation and drainage. First, saline solution is used to rinse away pus and other debris from the wound, and then drainage equipment is used to remove the debris.

[0003] However, some pus or necrotic tissue may stubbornly remain in the crevices of the wound, making it difficult to remove completely using conventional irrigation methods. Therefore, there is an urgent need for a wound irrigation and drainage device to effectively remove pus and necrotic tissue from the patient's wound. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a wound irrigation and drainage device to solve the problem that current conventional irrigation methods are unable to fully rinse away some pus or necrotic tissue trapped in the gaps of wound tissue.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The present invention provides a wound irrigation and drainage device, comprising:

[0007] A flushing tube, one end of which is a flushing end and the other end of which is a liquid inlet end, has a notch on one side of the flushing end and a drainage tube on one side of the flushing tube.

[0008] A washing box is disposed on the side of the rinsing end outside the notch. A rotating column is rotatably mounted inside the washing box. A turntable is coaxially mounted on the rotating column. One edge of the turntable passes through the notch and is located within the cavity of the rinsing end. One side of the rotating column extends out of the washing box and is provided with a brush head. The surface of the brush head is distributed with multiple bristles.

[0009] A control mechanism is used to deliver saline solution to the inlet end and to provide negative pressure suction for the drainage tube.

[0010] Furthermore, the control mechanism includes a control box, a water storage tank, and a sewage tank. The water storage tank and the sewage tank are respectively disposed inside the control box. A first connecting pipe is connected to the water storage tank, and a first pump body is disposed on the first connecting pipe. One end of the first connecting pipe extends out of the control box and can be connected to the liquid inlet end of the flushing pipe. A second connecting pipe is connected to the sewage tank, and a second pump body is disposed on the second connecting pipe. One end of the second connecting pipe extends out of the control box and can be connected to the drainage pipe.

[0011] Furthermore, the lumen of the flushing end is flat, and the notch is formed on the flat surface of the flushing end.

[0012] Furthermore, the turntable has multiple ratchet teeth evenly distributed around its circumferential edge.

[0013] Furthermore, the axis of the rotating column is perpendicular to the axis of the flushing pipe.

[0014] Furthermore, a water filter is provided on the bottom side of the washing box.

[0015] Furthermore, the brush head is spherical, and multiple bristles are radially distributed on the brush head.

[0016] Furthermore, both the rotating column and the brush head have internal cavities that communicate with each other. The surface of the brush head has multiple water inlets that communicate with the internal cavity of the brush head distributed between the bristles. A branch pipe is provided on one side of the rinsing pipe. The end of the rotating column away from the brush head extends out of the brush washing box. A diversion pipe is provided between the extending end and the branch pipe, and the end of the diversion pipe is sealed and rotatably connected to the extending end of the rotating column.

[0017] Furthermore, one end of the drainage tube is located on one side of the brush head and that end has an oblique opening.

[0018] As can be seen from the above technical solution, the wound irrigation and drainage device provided by the present invention utilizes the flow rate of physiological saline through the irrigation tube to provide a continuous power for the rotation of the bristles. As long as there is water flow in the irrigation tube, the bristles can be driven to rotate. The routine cleaning of the irrigation tube and the deep cleaning of the bristles can be carried out and stopped simultaneously, which greatly improves the wound cleaning efficiency and ease of operation. By using branch pipes to divert the water flow in the irrigation tube, some physiological saline can be sprayed out from various water nozzles on the brush head, which not only further improves the cleaning effect of the bristles, but also enables the bristles to self-clean. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1This is a three-dimensional structural diagram of the irrigation tube in one embodiment of a wound irrigation and drainage device according to the present invention.

[0021] Figure 2 This is a top view of the irrigation tube in one embodiment of a wound irrigation and drainage device according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the main structural schematic diagram of the irrigation tube in one embodiment of a wound irrigation and drainage device according to the present invention.

[0023] Figure 4 This is a cross-sectional view of the flushing tube in one embodiment of a wound irrigation and drainage device according to the present invention.

[0024] Figure 5 This is a partial structural diagram of the brush head in one embodiment of a wound irrigation and drainage device of the present invention.

[0025] Figure 6 This is a cross-sectional view of the main structural schematic diagram of the control mechanism in one embodiment of a wound irrigation and drainage device of the present invention.

[0026] Figure label:

[0027] Flushing pipe 1, flushing end 11, liquid inlet end 12, notch 13, drainage pipe 14, branch pipe 15, diversion pipe 16;

[0028] 2. Washing box, 21. Rotating column, 22. Rotating disc, 221. Ratchet, 23. Brush head, 231. Water inlet, 24. Brush bristles, 25. Filter outlet;

[0029] Control mechanism 3, control box 31, water storage tank 32, first connecting pipe 321, first pump body 322, sewage tank 33, second connecting pipe 331, second pump body 332. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] like Figure 1-6 As shown, this embodiment provides a wound irrigation and drainage device, which includes an irrigation tube 1, a brush box 2, and a control mechanism 3.

[0034] Please see Figures 1-4 One end of the irrigation tube 1 is the irrigation end 11, and the other end is the inlet end 12. Physiological saline can enter the lumen of the irrigation tube 1 from the inlet end 12 and flow out from the irrigation end 11 to clean the patient's wound. The irrigation end 11 has a notch 13 on one side, and a drainage tube 14 is provided on one side of the irrigation tube 1. The drainage tube 14 is used to draw the dirt from the wound into the negative pressure suction end.

[0035] The scrubbing box 2 is located on the side of the rinsing end 11 outside the notch 13. A rotating column 21 is rotatably mounted inside the scrubbing box 2. Specifically, to simplify the structure and reduce costs, the rotating column 21 is rotatably connected to the two side walls of the scrubbing box 2 via bearings. A turntable 22 is coaxially mounted on the rotating column 21. One edge of the turntable 22 passes through the notch 13 and is located within the cavity of the rinsing end 11. When water flows through the cavity of the rinsing end 11, it drives the turntable 22 to rotate, thereby causing the rotating column 21 to rotate. To enable the water flow to better drive the turntable 22, preferably, multiple ratchet teeth 221 are evenly distributed around the edge of the turntable 22. The ratchet teeth 221 increase the friction between the surface of the turntable 22 and the water flow, thereby allowing the water flow to push the ratchet teeth 221 to provide greater thrust. Furthermore, the axis of the rotating column 21 is perpendicular to the axis of the rinsing pipe 1, allowing the water flow direction to be tangential to the circumferential edge of the rotating disk 22. This enables the water flow to drive the rotating disk 22 to rotate in a positive direction, thereby increasing the rotational speed of the rotating column 21. A brush head 23 extends out of the brush box 2 on one side of the rotating column 21, and its surface is covered with multiple bristles 24. Preferably, the brush head 23 is spherical, with the bristles 24 radially distributed evenly on it, which facilitates the brush head 23 in cleaning the crevices of the wound surface from all directions, improving cleaning efficiency.

[0036] As the turntable 22 rotates, a gap inevitably exists between the notch 13 and the turntable 22. A small amount of saline solution will flow into the scrubbing box 2 through the gap. In order to avoid water accumulation inside the scrubbing box 2, which would increase the rotational resistance of the rotating column 21, a filter port 25 is provided on the bottom side of the scrubbing box 2 in one embodiment.

[0037] In one embodiment, the lumen of the rinsing end 11 is flat, and the notch 13 is formed on the flat surface of the rinsing end 11. The flat lumen of the rinsing end 11 can reduce the diameter of the rinsing end 11, increase the water flow velocity of the saline solution, enhance the rinsing force, increase the rotation speed of the rotating column 21, improve the brushing efficiency of the brush head 23, and the flat rinsing end 11 can also provide sufficient attachment space for the brush box 2, reduce the overall volume, and is suitable for small wounds.

[0038] like Figure 1-5 As shown, in one embodiment, both the rotating column 21 and the brush head 23 have internal cavities that communicate with each other. The surface of the brush head 23 has multiple water inlets 231 that communicate with the internal cavity of the brush head 23 distributed between each bristle 24. A branch pipe 15 is provided on one side of the rinsing pipe 1. The end of the rotating column 21 away from the brush head 23 extends out of the brush washing box 2. A diversion pipe 16 is provided between the end of the diversion pipe 16 and the branch pipe 15, and the end of the diversion pipe 16 is sealed and rotatably connected to the end of the rotating column 21. Specifically, a sealing ring is provided between the end of the diversion pipe 16 and the end of the rotating column 21 to ensure airtightness while ensuring that the diversion pipe 16 and the rotating column 21 rotate relative to each other. In practical use, when the saline solution flows through the rinsing tube 1, it will be divided into two streams. One stream will flow directly out from the rinsing end 11 to clean the wound, while the other stream will flow from the branch tube 15 along the diversion tube 16 into the rotating column 21 and the brush head 23, and then flow out from each water outlet 231. When the brush bristles 24 are brushing the wound, the water flowing out from the water outlet 231 can not only clean deep wounds, but also remove dirt attached to the brush bristles 24, keep the brush bristles 24 clean, and improve cleaning efficiency.

[0039] Preferably, one end of the drainage tube 14 is located on one side of the brush head 23 and the end is obliquely open, which is conducive to drawing out the pus or rotten tissue attached to the bristles 24 and cleaning the bristles 24. At the same time, the oblique opening can draw out the dirt around the wound.

[0040] Please see Figure 6 The control mechanism 3 is used to deliver saline solution to the inlet end 12 and to provide negative pressure suction for the drainage tube 14. Specifically, the control mechanism 3 includes a control box 31, a water storage tank 32, and a wastewater tank 33. The water storage tank 32 and the wastewater tank 33 are respectively installed inside the control box 31. The bottom of the control box 31 is equipped with casters to facilitate the movement of the entire control mechanism 3.

[0041] The water storage tank 32 is used to store physiological saline. It is understood that the water storage tank 32 can be equipped with an inlet for adding physiological saline, facilitating replenishment. A first connecting pipe 321 is connected to the water storage tank 32, and a first pump body 322 is installed on the first connecting pipe 321. The first pump body 322 can pump the physiological saline from the water storage tank 32. One end of the first connecting pipe 321 extends out of the control box 31 and can be connected to the inlet end 12 of the flushing pipe 1. Preferably, a liquid temperature controller is also installed inside the water storage tank 32. The control panel of this liquid temperature controller can be located on the outer surface of the control box 31, used to adjust the temperature of the physiological saline to a suitable temperature for the human body. The liquid temperature controller is a conventional product sold on the market, and therefore will not be described in detail here.

[0042] The sewage tank 33 is used to store sewage. It is understood that the sewage tank 33 can be provided with a drain outlet for discharging sewage, so as to facilitate timely discharge of sewage. The sewage tank 33 is connected to a second connecting pipe 331. A second pump body 332 is provided on the second connecting pipe 331. The second pump body 332 can provide negative pressure suction to make the drainage pipe 14 draw sewage into the sewage tank 33. One end of the second connecting pipe 331 passes through the control box 31 and can be connected to the drainage pipe 14.

[0043] The present invention provides a wound irrigation and drainage device. In specific use, the first pump body 322 and the second pump body 332 are activated to inject physiological saline into the irrigation tube 1 for wound cleaning and to provide negative pressure suction for drainage tube 14. When the water flows through the lumen of the irrigation end 11, it drives the turntable 22 to rotate, thereby driving the rotating column 21 and the brush head 23 to rotate, so that the brush bristles 24 rotate. The rotating brush bristles 24 continuously rotate and extend into the wound gaps, which can brush and remove pus or necrotic tissue in the wound gaps, achieving the effect of fully removing pus and necrotic tissue from the patient's wound. The cleaned-up dirt is then suctioned and collected through the drainage tube 14.

[0044] This application utilizes the flow rate of saline solution through the rinsing tube 1 to provide a continuous power source for the rotation of the bristles 24. As long as there is water flow in the rinsing tube 1, the bristles 24 can be driven to rotate. The routine cleaning of the rinsing tube 1 and the deep cleaning of the bristles 24 can be carried out and stopped simultaneously, which greatly improves the wound cleaning efficiency and ease of operation. The branch tube 15 is used to divert the water flow in the rinsing tube 1, so that some of the saline solution can be sprayed out from the various water nozzles 231 on the brush head 23. This not only further improves the cleaning effect of the bristles 24, but also enables the bristles 24 to self-clean.

[0045] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A wound irrigation and drainage device, characterized in that, include: A flushing tube, one end of which is a flushing end and the other end of which is a liquid inlet end, has a notch on one side of the flushing end and a drainage tube on one side of the flushing tube. A washing box is disposed on the side of the rinsing end outside the notch. A rotating column is rotatably mounted inside the washing box. A turntable is coaxially mounted on the rotating column. One edge of the turntable passes through the notch and is located within the cavity of the rinsing end. One side of the rotating column extends out of the washing box and is provided with a brush head. The surface of the brush head is distributed with multiple bristles. A control mechanism for supplying saline solution to the inlet end and providing negative pressure suction to the drainage tube; The control mechanism includes a control box, a water storage tank, and a sewage tank. The water storage tank and the sewage tank are respectively installed inside the control box. A first connecting pipe is connected to the water storage tank, and a first pump body is installed on the first connecting pipe. One end of the first connecting pipe extends out of the control box and can be connected to the liquid inlet of the flushing pipe. A second connecting pipe is connected to the sewage tank, and a second pump body is installed on the second connecting pipe. One end of the second connecting pipe extends out of the control box and can be connected to the drainage pipe. The lumen of the flushing end is flat, and the notch is opened on the flat surface of the flushing end. The turntable has multiple ratchet teeth evenly distributed around its circumferential edge. The axis of the rotating column is perpendicular to the axis of the flushing pipe; A water filter is provided on the bottom side of the washing box; The brush head is spherical, and multiple bristles are radially distributed on the brush head. Both the rotating column and the brush head have interconnected internal cavities. The surface of the brush head has multiple water inlets that communicate with the internal cavity of the brush head, distributed between the bristles. A branch pipe is provided on one side of the rinsing pipe. The end of the rotating column away from the brush head extends out of the brush washing box. A diversion pipe is provided between the protruding end of the rotating column and the branch pipe, and the end of the diversion pipe is sealed and rotatably connected to the protruding end of the rotating column. One end of the drainage pipe is located on one side of the brush head and this end is obliquely open.

Citation Information

Patent Citations

  • Planar scourer

    CN104384121A

  • Device of preparation medicinal cupping

    CN204815006U