Wound negative pressure drainage nursing device

Abstract

The utility model relates to medical instrument field, and specifically is a wound negative pressure drainage nursing device, including negative pressure balloon and install to its outside drainage tube, one end of drainage tube is equipped with the conical pipe, still include adjusting mechanism, adjusting mechanism sets up in the outside of conical pipe and is used for adjusting the port size of conical pipe, wherein, adjusting mechanism includes a group of reinforcing rib and traction rope, the reinforcing rib is even installed to its outside along the axis of conical pipe, one end of reinforcing rib passes through the hinged seat and installs to the outside of drainage tube, can according to the size and depth of wound, adjust corresponding liquid suction diameter and depth of embedding, reduce the damage to wound tissue and the phenomenon of incomplete liquid suction, simultaneously adopt adjustable annular airbag to fix inside the wound, make the wound tissue even under pressure, reduce the deformation movement phenomenon of wound tissue in the process of liquid suction, guarantee the liquid suction effect, reduce the discomfort of patient.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a wound negative pressure drainage nursing device. Background Technology

[0002] Wound drainage is an important part of surgical treatment. Most surgeries require the placement of drainage tubes in the patient's body to ensure wound healing after suturing. Surgical drainage can effectively prevent infection by draining pus or exudate from the wound in a timely and effective manner, reducing or eliminating surgical infections caused by exudate and pus. Effective drainage can eliminate the pressure of these fluids on tissues, reduce inflammation or the digestive effect on tissues, thereby avoiding serious consequences such as tissue necrosis. Therefore, negative pressure wound therapy devices are needed.

[0003] A search revealed that the Chinese patent "A Negative Pressure Drainage Device for Wound Exudate" (CN213527059U) includes a drainage tube. One end of the drainage tube is equipped with an anti-slip component, and the other end is equipped with a negative pressure drainer. The anti-slip component is used to fix the drainage tube at the wound site. The anti-slip component ensures stability during use, and the drainage tube is used in conjunction with an aspiration tube and a washing ring for negative pressure drainage. However, this method has the following drawbacks in actual use: the aspiration tube has a fixed inner diameter, making it difficult to adjust according to the size and depth of the wound during aspiration, which can easily lead to wound tissue injury and incomplete aspiration. Although the anti-slip component has a fixing function, the movement of the drainage tube during aspiration can cause the skin at the wound site to move, resulting in deformation of the wound tissue, affecting the aspiration effect, and causing patient discomfort.

[0004] Therefore, a negative pressure wound therapy device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a negative pressure wound therapy device to solve the above problems, thereby improving the issues of wound tissue injury and poor efficacy due to residual fluid absorption.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: a wound negative pressure drainage nursing device, comprising a negative pressure balloon and a drainage tube installed on its outer side, one end of the drainage tube being fitted with a tapered tube; further comprising an adjustment mechanism, the adjustment mechanism being disposed on the outer side of the tapered tube and used to adjust the size of the port of the tapered tube; wherein, the adjustment mechanism comprises a set of reinforcing ribs and a traction rope, the reinforcing ribs being evenly installed on its outer side along the axis of the tapered tube, one end of the reinforcing ribs being installed on the outer side of the drainage tube through a hinge seat, and one end of the traction rope passing through the hinge seat and being installed on the outer side of the reinforcing ribs.

[0007] Preferably, a support ring is sleeved on the outer side of the drainage tube, and an annular airbag is fixedly sleeved on the outer side of the support ring.

[0008] Preferably, the adjusting mechanism further includes an annular box and a piston ring slidably connected inside it. A set of springs connected to the piston ring are installed on the inner bottom wall of the annular box, and one end of the traction rope passes through the annular box and is installed to the outside of the piston ring.

[0009] Preferably, an inflatable balloon is provided on the outside of the negative pressure balloon, and a three-way tube is installed on the inflatable balloon. The two ends of the three-way tube away from the inflatable balloon are respectively connected to the annular airbag and the annular box.

[0010] Preferably, two valves are installed on the tee pipe, and a set of limit buckles for limiting the movement of the tee pipe are installed on the outside of the drainage pipe.

[0011] Preferably, the three-way tube is made of plastic tubing, and the tapered tube is made of medical-grade silicone.

[0012] Preferably, the connection between the traction rope and the annular box is sealed, and the support ring and the drainage tube are subject to frictional sliding.

[0013] The beneficial effects of this utility model are:

[0014] 1. By setting up reinforcing ribs, users can drive the traction rope to pull the reinforcing ribs according to the size of the wound, causing the conical tube to expand outward and deform, increasing its suction port diameter to match the size of the wound, ensuring the suction effect and reducing residue. When it is necessary to reduce the diameter, the traction rope can be reset to the corresponding degree, reducing the outward expansion area and achieving the effect of reducing the diameter. This reduces the accidental adsorption of wound tissue during the suction process and reduces the occurrence of wound tissue injury.

[0015] 2. By setting up a ring-shaped airbag, the airbag can be slid to the corresponding position on the drainage tube to adapt to the aspiration depth. Then, gas is introduced into the ring-shaped airbag, causing it to inflate and come into contact with the inner wall of the wound. Using this method, it can adapt to the irregular shape of the wound, fill the gap between the drainage tube and the wound, and make the drainage more sufficient, ensuring the aspiration effect. In addition, the ring-shaped airbag can evenly distribute the pressure of the drainage tube on the surrounding tissues, avoiding excessive local pressure during aspiration and causing compressive damage to the tissues. Furthermore, the uniform pressure distribution of the ring-shaped airbag protects the blood circulation of the surrounding tissues, reducing the occurrence of tissue damage. It can also reduce patient discomfort during drainage tube angle deviation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0018] Figure 3 This is a schematic diagram of the piston ring and support ring of this utility model;

[0019] Figure 4 for Figure 1 Enlarged diagram of B in the diagram.

[0020] In the diagram: 100, negative pressure balloon; 110, inflatable balloon; 120, three-way tube; 121, valve; 200, drainage tube; 210, tapered tube; 220, support ring; 221, annular airbag; 230, limit buckle; 300, adjustment mechanism; 310, reinforcing rib; 320, traction rope; 330, piston ring; 340, annular box; 341, spring. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] In practical implementation: such as Figure 1-4 As shown, the wound negative pressure drainage nursing device includes a negative pressure balloon 100 and a drainage tube 200 installed on its outer side. One end of the drainage tube 200 is equipped with a tapered tube 210. It also includes an adjustment mechanism 300, which is located on the outer side of the tapered tube 210 and is used to adjust the size of the port of the tapered tube 210. The adjustment mechanism 300 includes a set of reinforcing ribs 310 and a traction rope 320. The reinforcing ribs 310 are evenly installed on the outer side of the tapered tube 210 along its axis. One end of the reinforcing ribs 310 is installed on the outer side of the drainage tube 200 through a hinge seat. One end of the traction rope 320 passes through the hinge seat and is installed on the outer side of the reinforcing ribs 310.

[0023] like Figure 2 and Figure 3 As shown, a support ring 220 is sleeved on the outside of the drainage tube 200, and an annular airbag 221 is fixedly sleeved on the outside of the support ring 220.

[0024] When performing aspiration and drainage on a patient's wound, the support ring 220 can be slid to the corresponding position on the drainage tube 200 according to the wound depth. Then, depending on the wound size, the traction rope 320 is driven to move, causing the reinforcing rib 310 to rotate along the hinge seat within the hinge seat. This causes the tapered tube 210 to expand and deform outward, increasing its aspiration diameter to match the wound size and ensure effective aspiration. After adjustment, it is placed inside the wound. Once in place, gas is introduced into the annular airbag 221, causing it to inflate and come into contact with the inner wall of the wound. This method allows it to adapt to the irregular shape of the wound and fill the drainage tube 200. The gap between the drainage tube 200 and the wound allows for more thorough drainage, ensuring effective aspiration. In the drainage of complex wounds or irregular postoperative wounds, it can effectively prevent the accumulation of exudate due to insufficient drainage, reducing the risk of infection. Furthermore, the annular balloon 221 can evenly distribute the pressure of the drainage tube 200 on the surrounding tissues, avoiding excessive local pressure during aspiration and preventing compressive damage to the tissues. The annular balloon 221 also protects the blood circulation of the surrounding tissues through uniform pressure distribution, reducing tissue damage and minimizing patient discomfort. The user can then use the negative pressure balloon 100 in conjunction with the drainage tube 200 for aspiration.

[0025] like Figure 2 and Figure 3 As shown, the adjustment mechanism 300 also includes an annular box 340 and a piston ring 330 slidably connected inside it. A set of springs 341 connected to the piston ring 330 are installed on the inner bottom wall of the annular box 340. One end of the traction rope 320 passes through the annular box 340 and is installed on the outside of the piston ring 330.

[0026] After the gas is introduced into the annular box 340, the gas will compress the piston ring 330 to move, causing it to drive the traction rope 320 to move and pull the reinforcing rib 310 to move, thus increasing the diameter of the conical tube 210. When it is necessary to reduce the suction diameter, the gas injection can be reduced or some gas can be discharged to the outside after injection. Then the spring 341 will assist the piston ring 330 to return to its original position, so that the traction rope 320 no longer pulls the reinforcing rib 310. Then the conical tube 210 will return to its original position, reducing its diameter to fit small wounds, reducing the phenomenon of accidental adsorption of wound tissue during suction, and reducing the occurrence of wound tissue damage.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, an inflatable balloon 110 is provided on the outside of the negative pressure balloon 100. A three-way tube 120 is installed on the inflatable balloon 110. The two ends of the three-way tube 120 away from the inflatable balloon 110 are respectively connected to the annular airbag 221 and the annular box 340.

[0028] The user can grasp the inflatable balloon 110 to guide the gas out along the three-way tube 120, thus completing the inflation of the annular balloon 221 and the adjustment of the diameter of the conical tube 210.

[0029] When it is necessary to release the gas inside the annular airbag 221 and the annular box 340, the exhaust valve on the inflatable airbag 110 can be opened to complete the gas release.

[0030] like Figure 1 and Figure 4 As shown, two valves 121 are installed on the tee pipe 120, and a set of limit buckles 230 for limiting the movement of the tee pipe 120 is installed on the outside of the drain pipe 200.

[0031] By using two valves 121, the opening and closing of both ends of the three-way pipe 120 can be controlled, so that the expansion of the annular airbag 221 and the adjustment of the diameter of the conical pipe 210 can be controlled separately, which is more convenient.

[0032] The limit buckle 230 is used to limit the movement of the three-way tube 120, thereby reducing its large-scale movement during the liquid aspiration process and minimizing the impact on the liquid aspiration operation.

[0033] like Figure 1 and Figure 2 As shown, the three-way tube 120 is made of plastic tubing, and the tapered tube 210 is made of medical-grade silicone.

[0034] This allows the support ring 220 to slide normally on the drainage tube 200. The medical silicone material allows for easy adjustment of the diameter of the tapered tube 210 by utilizing its deformation capability.

[0035] like Figure 2 As shown, the connection between the traction rope 320 and the annular box 340 is sealed, and the bottom of the annular box 340 is provided with an exhaust hole, which can reduce the occurrence of jamming during the movement of the piston ring 330. The support ring 220 and the drainage tube 200 are frictionally sliding.

[0036] This ensures good airtightness within the annular box 340, allowing the piston ring 330 to move normally under gas compression. The use of frictional sliding allows the support ring 220 to be adjusted normally while reducing the occurrence of accidental sliding.

[0037] Working principle: When performing aspiration and drainage on a patient's wound, the support ring 220 can be slid to the corresponding position on the drainage tube 200 according to the wound depth. Then, according to the wound size, the traction rope 320 is driven to move, causing the reinforcing rib 310 to be moved, which in turn causes the conical tube 210 to expand and deform outward, increasing its aspiration diameter to match the wound size and ensure the aspiration effect. After adjustment, it is placed inside the wound. After placement, air is introduced into the annular airbag 221 using the inflatable balloon 110, causing it to expand and align with the wound. The wall-fitting contact allows it to adapt to the irregular shape of the wound, filling the gap between the drainage tube 200 and the wound, ensuring more thorough drainage and effective aspiration. In complex wounds or irregular postoperative wounds, it effectively prevents exudate accumulation due to insufficient drainage, reducing the risk of infection. Furthermore, the annular balloon 221 evenly distributes the pressure of the drainage tube 200 on surrounding tissues, preventing excessive local pressure and compressive damage during aspiration. The distribution of the fluid protects the blood circulation of surrounding tissues, reduces tissue damage, and minimizes patient discomfort. The user can then use the negative pressure balloon 100 with the drainage tube 200 for aspiration. When a smaller aspiration diameter is needed, the gas injection can be reduced, or after injection, the corresponding valve 121 can be opened to release some gas through the exhaust valve on the inflatable balloon 110. Subsequently, the spring 341 resets the auxiliary piston ring 330, preventing the traction rope 320 from pulling on the reinforcing rib 310. Then, the tapered tube 210 resets. The diameter of the nozzle is reduced to fit smaller wounds, reducing the chance of accidental suction to the wound tissue during aspiration and minimizing wound tissue damage. The entire device can be adjusted according to the size and depth of the wound to reduce damage to the wound tissue and incomplete aspiration. At the same time, an adjustable annular airbag 221 is used to fix the inside of the wound, ensuring uniform pressure on the wound tissue and reducing deformation and movement of the wound tissue during aspiration, thus ensuring the aspiration effect and reducing patient discomfort.

[0038] It should be noted that the drainage tube 200 can be a straight tube or a folded tube depending on the usage requirements.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A negative pressure wound therapy device, characterized in that, include: A negative pressure balloon (100) and a drainage tube (200) installed on its outer side, one end of which is fitted with a tapered tube (210); It also includes an adjustment mechanism (300), which is disposed on the outside of the tapered tube (210) and is used to adjust the size of the port of the tapered tube (210); The adjustment mechanism (300) includes a set of reinforcing ribs (310) and a traction rope (320). The reinforcing ribs (310) are evenly installed on the outside of the tapered tube (210) along its axis. One end of the reinforcing ribs (310) is installed on the outside of the drainage tube (200) through a hinge seat. One end of the traction rope (320) passes through the hinge seat and is installed on the outside of the reinforcing ribs (310).

2. The wound negative pressure drainage nursing device according to claim 1, characterized in that: A support ring (220) is sleeved on the outside of the drainage tube (200), and an annular airbag (221) is fixedly sleeved on the outside of the support ring (220).

3. The wound negative pressure drainage nursing device according to claim 2, characterized in that: The adjustment mechanism (300) also includes an annular box (340) and a piston ring (330) slidably connected inside it. A set of springs (341) connected to the piston ring (330) are installed on the inner bottom wall of the annular box (340). One end of the traction rope (320) passes through the annular box (340) and is installed on the outside of the piston ring (330).

4. The wound negative pressure drainage nursing device according to claim 3, characterized in that: An inflatable balloon (110) is provided on the outside of the negative pressure balloon (100), and a three-way tube (120) is installed on the inflatable balloon (110). The two ends of the three-way tube (120) away from the inflatable balloon (110) are respectively connected to the annular airbag (221) and the annular box (340).

5. The wound negative pressure drainage nursing device according to claim 4, characterized in that: Two valves (121) are installed on the three-way pipe (120), and a set of limit buckles (230) for limiting the three-way pipe (120) is installed on the outside of the drainage pipe (200).

6. The wound negative pressure drainage nursing device according to claim 4, characterized in that: The three-way tube (120) is made of plastic tubing, and the tapered tube (210) is made of medical-grade silicone.

7. The wound negative pressure drainage nursing device according to claim 3, characterized in that: The connection between the traction rope (320) and the annular box (340) is sealed, and the support ring (220) and the drainage tube (200) slide against each other.

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