Sterile application for fixing catheter

Abstract

The utility model discloses a sterile application for fixing a catheter, which belongs to the technical field of medical supplies and comprises an application body, a bonding piece with a bonding effect on one side and a positioning unit arranged on the bonding piece, the application body is used for being attached to a puncture point of the skin of a patient, a connecting hole for the catheter to penetrate through is formed in the application body, and the positioning unit is arranged on the bonding piece. One end of the bonding piece is connected with the application body through a connecting part, the positioning unit comprises a plurality of flexible positioning pieces and is used for positioning a catheter, and one end of each flexible positioning piece is fixedly connected with the bonding piece. And the catheter led out of the puncture part is fixed to be in an S shape through the positioning unit arranged on the bonding piece, tensile force can be dispersed when the catheter is subjected to the tensile force, local stress is prevented from being too large, and the risk that the other end of the catheter is easily pulled out of the puncture part is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a sterile dressing for fixing catheters. Background Technology

[0002] Burn patients experience significant fluid loss due to the presence of burn wounds. This fluid loss can lead to hypovolemic shock. Central venous catheterization can rapidly and effectively replenish blood volume, ensuring circulatory stability. After central venous catheterization, medical staff typically use sterile dressings to tightly cover the area around the puncture site, securely fixing the catheter to the skin to prevent infection, maintain cleanliness of the puncture site, and prevent catheter displacement or dislodgement, ensuring stable functioning during treatment. However, burn patients require a well-ventilated environment for wound healing. Traditional dressings have poor breathability, potentially hindering wound healing and increasing the risk of infection. Furthermore, patients with large burn areas often have severe conditions and may experience agitation due to pain and discomfort. In such cases, ordinary dressings are unlikely to effectively secure the central venous catheter, easily leading to catheter pulling and dislodgement, thus affecting normal treatment.

[0003] Therefore, we propose a sterile dressing for fixing catheters to solve the above problems. Utility Model Content

[0004] This utility model provides a sterile dressing for fixing catheters to solve the aforementioned technical problems.

[0005] This utility model embodiment adopts the following technical solution: it includes a dressing body, an adhesive component with an adhesive effect on one side, and a positioning unit disposed on the adhesive component. The dressing body is used to be applied to the puncture point on the patient's skin, and the dressing body is provided with a connection hole for the catheter to pass through. One end of the adhesive component is connected to the dressing body through a connecting part. The positioning unit includes multiple flexible positioning components for positioning the catheter. One end of the flexible positioning component is fixedly connected to the adhesive component, and the movable end and the fixed end of the flexible positioning component are detachably connected through a connector. When the movable end and the fixed end of the flexible positioning component are connected, they can form a circumferential state around the catheter, and the circumferential direction of the catheter between two adjacent flexible positioning components is opposite. The adhesive component increases the overall contact area with the skin or clothing, thereby improving the fixing effect of the positioning unit on the catheter.

[0006] Furthermore, the dressing body has a transparent observation section on the outer periphery of the connection hole for observing the bleeding at the puncture point, so as to check the treatment during use.

[0007] Furthermore, the inner wall of the connecting hole is provided with an elastic friction part to improve the fixing effect on the conduit.

[0008] Furthermore, the dressing body has a straight tear line, and the two ends of the tear line extend to the end of the dressing body and the inner wall of the connecting hole, respectively, so that the dressing body can be torn open and the catheter can be inserted into the connecting hole.

[0009] Furthermore, the dressing body is provided with a limiting member located on one side of the tear line, which allows the separated dressing body to be reconnected.

[0010] Furthermore, the corners of both the adhesive body and the adhesive are rounded to reduce the lifting of the edges and corners of the adhesive body and the adhesive.

[0011] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0012] In this invention, the dressing body is directly applied to the puncture site to maintain a sterile environment and reduce the risk of infection. The positioning unit on the adhesive component fixes the catheter leading out from the puncture site in an "S" shape, which can disperse the tension when subjected to force, avoid excessive local stress, and reduce the risk that the other end of the catheter can be easily pulled out from the puncture site. The adhesive component increases the overall contact area with the skin or clothing, making the catheter more securely fixed. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram showing the connection of the two parts of the adhesive body after the tear-off line is separated by the limiting component in this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the dressing body in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the flexible positioning component in this utility model;

[0019] Figure 6 This is a schematic diagram of the positioning unit fixing the catheter in this utility model.

[0020] Figure Labels

[0021] The application body 1, connecting hole 11, observation part 12, elastic friction part 13, adhesive part 2, connecting part 21, flexible positioning part 3, connecting part 31, easy-tear break line 4, limiting part 5, rounded corner part 6. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] This utility model provides a sterile dressing for fixing a catheter, including a dressing body 1 for application to the patient's skin puncture site. To facilitate the passage of the catheter through the puncture site, a connection hole 11 is provided on the dressing body 1. The dressing body 1 can be made of hydrocolloid dressing or alginate dressing. Hydrocolloid dressing has good breathability. Its outer layer is a waterproof semi-permeable membrane, preventing the invasion of external bacteria while allowing oxygen and water vapor to pass through. This type of dressing can absorb small to moderate amounts of exudate, creating a moist healing environment on the burn wound. Alginate dressing, mainly made from natural seaweed extracts, has strong absorbency and can absorb large amounts of exudate, making it an ideal choice for burn wounds with significant exudate. It also has good breathability and forms a gel-like substance after absorbing exudate, providing a moist healing environment for the wound and promoting hemostasis. Therefore, the choice can be made according to the patient's specific condition. A suitable dressing body 1 is selected. An adhesive component 2 is connected to one side of the dressing body 1 via a connecting part 21. One side of the adhesive component 2 has an adhesive effect, and this adhesive surface can be covered with a release layer before use. During use, the release layer is peeled off, and then the adhesive component 2 is adhered to the patient's body or clothing via the adhesive surface. Furthermore, to secure the catheter leading from the puncture point and prevent it from being pulled off by the patient, a positioning unit for securing the catheter is provided on the adhesive component 2. The positioning unit includes a pair of flexible positioning elements 3, one end of which is fixed to the adhesive component 2. The flexible positioning element 3 is connected to the fixed end of the flexible positioning element 3 via a connector 31. When the flexible positioning element 3 is connected to the fixed end, it can form a loop around the conduit, and the looping directions of two adjacent flexible positioning elements 3 are opposite. The detachable connection method can be Velcro or snap fasteners. In use, the conduit is fixed by passing it through the flexible positioning elements 3 in sequence, so that the part of the conduit in the positioning unit is in an "S" shape. When the conduit is subjected to a tensile force, the bent part will be pulled first. This process can absorb some of the pulling force, thereby reducing the force directly acting on the puncture site at the catheter root, reducing the risk of the catheter being pulled off, and improving the stability of the catheter fixation. Furthermore, when the patient moves, the catheter is subjected to pulling forces from different directions. If the flexible positioning element 3 is wrapped in the same direction, it may cause the catheter to shift in a weak direction. However, the wrapping in the opposite direction can better disperse these pulling forces. Even if the opening end of one of the flexible positioning elements 3 is accidentally opened, the opposite flexible positioning element 3 will still fix the catheter, thereby improving the fixation effect of the catheter.

[0025] Preferably, in order to facilitate observation of the puncture site, the dressing body 1 is also provided with a transparent observation section 12 at the outer periphery of the connection hole 11. The observation section 12 can be made of transparent sterile film dressing, etc., to facilitate observation of bleeding.

[0026] Preferably, the inner wall of the connection hole 11 is provided with an elastic friction part 13. The elastic friction part 13 can be made of medical silicone or the like. When the catheter passes through the connection hole 11, it comes into contact with the catheter through the elastic friction part 13, which can fit tightly against the outer wall of the catheter and play a good sealing role. This helps to prevent external bacteria, dust and other contaminants from entering the puncture site through the gap between the connection hole 11 and the catheter, thus maintaining a sterile environment at the puncture site.

[0027] Preferably, the dressing body 1 has a straight tear line 4, and the two ends of the tear line 4 extend to the end of the dressing body 1 and the inner wall of the connecting hole 11, respectively. Before the dressing body 1 is attached to the patient's puncture site, one end of the dressing body 1 can be divided into two parts by the tear line 4, so that the connecting hole 11 can be sleeved on the outside of the catheter, so as to facilitate the attachment of the dressing body 1 to the puncture point of the patient's body.

[0028] Furthermore, to improve the stability of the dressing body 1 after partial tearing, a limiting member 5 is provided on the dressing body 1. The limiting member 5 is located on one side of the tear line 4. The limiting member can be medical tape or the like. The limiting member 5 reconnects the two parts of the dressing body 1 after tearing, and can prevent the catheter from falling off the torn dressing body 1. Since the elastic friction part 13 in the connecting hole 11 is an annular shape that coincides with the inner circumference of the connecting hole 11, it is not completely closed. Therefore, the catheter can enter the connecting hole 11 from the tear point on the dressing body 1. At the same time, the elastic friction part 13 has a certain elasticity and can contact the outer wall of the catheter as much as possible, thereby achieving a sealing effect as much as possible.

[0029] Preferably, both the patch body 1 and the adhesive 2 have rounded corners 6 at their corners. During use, the right-angled parts of a square or rectangular shape are easily affected by external forces, such as when the patient moves, clothing rubs against them, or the adhesive tension of the patch changes. Stress concentration is more likely to occur at the right angles. The rounded corner design can distribute the stress evenly on the edges of the patch body 1 and the adhesive 2, reducing the lifting of the corners caused by stress concentration, and making the fit and adhesion effect better.

[0030] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A sterile dressing for fixing catheters, characterized in that, include: The dressing body (1) is used to be applied to the puncture point on the patient's skin, and the dressing body (1) is provided with a connection hole (11) for the catheter to pass through. An adhesive component (2) with an adhesive effect on one side, one end of which is connected to the dressing body (1) via a connecting part (21); A positioning unit is provided on the adhesive (2). The positioning unit includes a plurality of flexible positioning elements (3) for positioning the catheter. One end of the flexible positioning element (3) is fixedly connected to the adhesive (2), and the movable end of the flexible positioning element (3) and the fixed end of the flexible positioning element (3) are detachably connected through a connector (31). When the movable end of the flexible positioning element (3) is connected to the fixed end, it can form a circumferential state around the catheter, and the circumferential direction of the catheter between two adjacent flexible positioning elements (3) is opposite.

2. The sterile dressing for fixing a catheter according to claim 1, characterized in that, The dressing body (1) has a transparent observation section (12) located on the outer periphery of the connecting hole (11) for observing the bleeding at the puncture point.

3. The sterile dressing for fixing a catheter according to claim 1, characterized in that, The inner wall of the connecting hole (11) is provided with an elastic friction part (13).

4. The sterile dressing for fixing a catheter according to claim 1, characterized in that, The dressing body (1) has a straight tear line (4) and the two ends of the tear line (4) extend to the end of the dressing body (1) and the inner wall of the connecting hole (11), respectively.

5. The sterile dressing for fixing a catheter according to claim 1, characterized in that, The dressing body (1) is provided with a limiting member (5), which is located on one side of the tear line (4).

6. The sterile dressing for fixing a catheter according to claim 1, characterized in that, The corners of both the dressing body (1) and the adhesive (2) are provided with rounded corners (6).

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