ECMO catheter fixing device

Abstract

The utility model provides an ECMO catheter fixing device. The ECMO catheter fixing device sequentially comprises a skin adhesive tape making contact with the skin of a patient, a liner layer, a connecting band and a catheter adhesive tape making contact with an ECMO catheter. The number of the connecting bands can be two, and the two connecting bands are spaced by a set distance in the extending direction of the ECMO catheter. Each connecting band is connected with two catheter adhesive tapes, and each catheter adhesive tape has the length capable of winding the ECMO catheter by at least two circles. The ECMO catheter fixing device provided by the utility model can enhance the fitting degree of the catheter and the skin and the stability of the catheter, effectively fix the catheter and prevent the catheter from shifting, loosening or twisting, and simultaneously reduce the compression on the skin and limbs of a patient, thereby reducing the treatment risk and ensuring the smooth ECMO treatment.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ECMO catheter fixation device. Background Technology

[0002] Extracorporeal membrane oxygenation (ECMO) is an extracorporeal life support technology used to temporarily partially or completely replace the cardiopulmonary function of a patient. It works by draining the patient's blood outside the body, oxygenating it, and then returning it to the patient's body to maintain vital signs and buy time for the treatment of critically ill patients. It is particularly suitable for providing continuous extracorporeal respiration and circulation for patients with severe respiratory failure and severe cardiopulmonary failure.

[0003] The core components of an ECMO device are the oxygenator (artificial lung) and the propellant pump (artificial heart). During operation, blood is drawn from a vein, oxygenated by the oxygenator, and carbon dioxide is removed. The oxygenated blood is then pumped back into a vein or artery. Therefore, ECMO procedures typically require two catheters: one for draining blood and the other for returning blood to the body. The catheter leading out of the body must be securely fixed. Displacement, loosening, or twisting of the catheter can cause the puncture site to rupture, leading to massive bleeding, reduced treatment effectiveness, and even threatening the patient's life. Therefore, catheter fixation is crucial.

[0004] Several ECMO catheter fixation designs currently exist. However, existing fixation devices suffer from insufficient fit and rigidity, failing to conform well to the skin and secure the catheter. Furthermore, both the fixation device and the catheter are made of relatively hard materials, which can easily cause pressure sores when in contact with or pressing on the skin, increasing the burden on the patient. Utility Model Content

[0005] The present invention aims to provide a novel ECMO catheter fixation device to solve the problems of insufficient catheter fixation and poor fit in the prior art, so as to achieve a firm and effective fit between the ECMO catheter and the patient's skin, ensuring the stability of the catheter and the safety of the patient.

[0006] According to one aspect of the present invention, an ECMO catheter fixation device is provided, comprising, in sequence: a skin tape that contacts the patient's skin, a padding layer, a connecting strap, and a catheter tape that contacts the ECMO catheter.

[0007] According to the present invention, an ECMO catheter fixation device is provided, wherein the ECMO catheter fixation device is provided with two connecting straps, the two connecting straps being spaced apart by a predetermined distance in the extension direction of the ECMO catheter.

[0008] According to the present invention, an ECMO catheter fixation device is provided, wherein two catheter tapes are connected to each connecting strap, and each catheter tape has a length of at least two cycles wrapped around the ECMO catheter.

[0009] According to the present invention, an ECMO catheter fixation device is provided in which the adhesive side of the skin tape is covered with a backing membrane; and / or the adhesive side of the catheter tape is covered with a backing membrane.

[0010] According to the present invention, an ECMO catheter fixation device is provided, wherein the length of the catheter tape is 6-15cm and the width is 0.5-2cm.

[0011] According to the present invention, an ECMO catheter fixation device is provided, wherein the length of the skin tape is 15-25cm and the width is 6-15cm.

[0012] According to the present invention, an ECMO catheter fixation device is provided, wherein the padding layer has a length of 5-10cm, a width of 5-10cm, and a height of 0.2-0.5cm.

[0013] According to the present invention, an ECMO catheter fixation device is provided, wherein the length of the connecting strap is 0.3-0.8cm and the width is 0.5-1cm.

[0014] According to the present invention, an ECMO catheter fixation device is provided, wherein the connecting strap is disposed between the skin tape and the catheter tape, and the skin tape, the connecting strap, and the catheter tape are integrally formed; the padding layer has an opening corresponding to the connecting strap, and the connecting strap and the catheter tape pass through the opening.

[0015] According to the present invention, an ECMO catheter fixation device is provided in which the skin tape, the padding layer, the connecting strap and the catheter tape are connected to each other by sewing.

[0016] The ECMO catheter fixation device provided by this utility model solves the problem of insufficient skin adhesion by increasing the contact area between the fixation device and the skin and the adhesive strength of the backing. By using catheter tape with strong adhesive strength, it can better adhere to the catheter and meet the fixation requirements of different types of catheters and different body parts. By setting multiple connecting straps and multiple catheter tapes, multiple fixation points can be formed for the same catheter, so as to achieve double or multiple fixation.

[0017] The ECMO catheter fixation device provided by this utility model can enhance the fit between the catheter and the skin and the stability of the catheter, effectively fix the catheter and prevent catheter displacement, loosening or twisting, while reducing pressure on the patient's skin and limbs, thereby reducing treatment risks and ensuring the smooth progress of ECMO treatment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a front view of an embodiment of the ECMO catheter fixation device according to the present invention;

[0020] Figure 2 This is a side view of one embodiment of the ECMO catheter fixation device according to the present invention.

[0021] The reference numerals in the figure represent:

[0022] 1-Drug tape; 2-Skin tape; 3-Padding layer; 4-Connecting tape. Detailed Implementation

[0023] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.

[0024] It should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., appearing in the description of this utility model, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as special limitations on this utility model. Furthermore, features described with "first" or "second" may explicitly or implicitly include one or more of those features.

[0025] The ECMO catheter fixation device provided by this utility model is described in detail below.

[0026] ECMO tubing is an essential component for establishing extracorporeal circulation. To ensure sufficient blood flow, the largest possible cannula needs to be inserted; however, larger cannulas present greater challenges in placement and fixation. Considering all factors, catheters for adults can be selected with a diameter of, for example, 10 mm, while those for children can be selected with a diameter of, for example, 6 mm. When administering ECMO treatment to a patient, after cannulation, the incision or puncture site should be sutured and fixed in place, covered with a sterile dressing, and then secured to the patient's skin.

[0027] like Figure 1 and Figure 2 As shown, the ECMO catheter fixation device according to this utility model includes, from bottom to top: skin tape 2, padding layer 3, connecting strap 4 and catheter tape 1, wherein the skin tape 2 is used to contact and adhere to the patient's skin, and the catheter tape 1 is used to contact and fix the catheter.

[0028] It should be noted that the terms "up" and "down" here are used only for ease of description. Figure 2 The direction defined by the side view is not an absolute direction for placement or use; or, in this article, the side that is in contact with the patient's skin is defined as "down" and the side that is away from the patient's skin is defined as "up".

[0029] Skin tape 2 needs to have strong adhesion to firmly bond with the skin; it also needs to have sufficient flexibility, toughness, and strength to ensure reliability during use; at the same time, it should be safe, non-irritating, and breathable to avoid skin allergies or discomfort caused by prolonged contact with the patient's skin. Skin tape 2 can be an adhesive medical tape made of fibrous materials such as cloth or non-woven fabric, or a film material, such as spandex tape, acrylic medical tape, transparent polyethylene medical tape, polyester spunlace non-woven medical tape, PE tape, etc.; for ease of use, the adhesive side of the tape can be covered with a backing film.

[0030] The catheter tape 1 needs to have sufficient adhesiveness to firmly adhere to the catheter; it also needs to have sufficient flexibility, toughness, and strength to ensure reliability during use. Catheter tape 1 can be an adhesive tape made of fibrous materials such as cloth or non-woven fabric, or a film material, for example, spandex tape, acrylic medical tape, transparent polyethylene medical tape, polyester spunlace non-woven medical tape, PE tape, etc.; for ease of use, the adhesive side of the tape can be covered with a backing film. The skin tape 2 can be made of the same material as catheter tape 1, or a different material.

[0031] The connecting strap 4 is positioned between the skin tape 1 and the catheter tape 2, providing sufficient height space for the catheter to prevent it from pressing tightly against the skin and reducing pressure on the skin. The connecting strap 4 can be made of a material with a certain strength, such as gauze or spandex.

[0032] The padding layer 3 is located below the catheter during use and can further buffer the pressure of the catheter on the skin. It is preferably made of an elastic material, such as polyurethane foam.

[0033] In one embodiment of this application, the ECMO catheter fixation device provided by this utility model is applied to ECMO device users who require catheter fixation. Medical personnel first remove the backing membrane of the skin tape 2, and then fix the catheter along the direction of its extension (i.e., Figure 1 and Figure 2 (Along the length of the skin tape 2), apply the skin tape 2 to the patient's skin. Do not stretch it taut; leave the tape 2 in a tension-free state. Place the catheter above the liner layer 3, then peel off the backing membrane of the catheter tape 1. Wrap the catheter tape 1 around the ECMO catheter to secure it. At this point, because there is a connecting band 4 between the skin tape 1 and the catheter tape 2, the secured catheter will not press tightly against the patient's skin.

[0034] The ECMO catheter fixation device provided by this utility model has a large contact area between the flexible skin tape and the skin, which can better adhere to the patient's skin. At the same time, the catheter tape can better adhere to the catheter without compressing the skin. This solves the problems of insufficient catheter fixation and poor fit in the prior art, improves the fixation force of the catheter, reduces the risk of catheter dislodgement or displacement, and improves safety and treatment effect.

[0035] In one embodiment of this application, the catheter tape 1 has a length of 6-15cm, preferably 8cm, and a width of 0.5-2cm, preferably 1cm; the skin tape 2 has a length of 15-25cm, preferably 20cm, and a width of 6-15cm, preferably 8cm; the padding layer 3 has a length of 5-10cm, preferably 8cm, and a width of 5-10cm, preferably 8cm, generally not exceeding the range of the skin tape 1, and a height of 0.2-0.5cm, preferably 0.3cm; the connecting strip 4 has a length of 0.3-0.8cm, preferably 0.5cm, and a width of 0.5-1cm, preferably 0.8cm. The dimensions of each component can also be selected according to actual conditions to meet the needs of different patient sizes, application sites, and different catheter diameters.

[0036] In one embodiment of this application, the ECMO catheter fixation device is provided with two connecting straps 4, which are spaced 5-8 cm apart in the catheter extension direction. Alternatively, three or more connecting straps may be provided according to actual needs. Figure 1 and Figure 2As shown, at least two catheter tapes 1 can be connected to each connecting strip 4. Preferably, the length of each catheter tape 1 is sufficient to wrap around the catheter 2-3 times, so that it can be wrapped around the catheter more than once during use to ensure stable adhesion. The wrapping direction can be either counterclockwise or clockwise. Preferably, the two catheter tapes 1 on the same connecting strip 4 have opposite wrapping directions.

[0037] Setting up multiple connecting straps and multiple tube tapes can create multiple fixing points for the same tube, providing double or multiple fixation. Compared with existing mechanical fixation such as snap-fit ​​fixation, this is more robust and reliable, and is also more suitable for complex-shaped parts such as joints.

[0038] According to one embodiment of this application, the skin tape 2, the connecting tape 4, and the catheter tape 1 can be integrally molded; in use, the backing film of the connecting tape 4 does not need to be removed. An opening is cut on the padding layer 3 at the position corresponding to the connecting tape 4, according to the width of the connecting tape 4. The connecting tape 4 and the catheter tape 2 are passed through the opening, and then the padding layer 3 is adhered to the upper surface of the skin tape 1.

[0039] According to another embodiment of this application, the skin tape 2, the connecting strip 4, and the conduit tape 1 can be connected to each other by sewing. Alternatively, the skin tape 2 can be sewn together with the padding layer 3, the padding layer 3 with the connecting strip 4, and the connecting strip 4 with the conduit tape 2 respectively. Other suitable methods can also be used to connect the components, as long as the required strength in use is met.

[0040] The ECMO catheter fixation device provided by this invention does not need to be used in conjunction with the rigid catheter fixation device in the prior art, which reduces pressure on the patient's skin and limbs, while ensuring the stability of the catheter and the safety of the patient. It is low in cost and effective.

[0041] It should be noted that although the above embodiments are for ECMO catheter fixation devices, the catheter fixation device provided by this utility model is not limited to ECMO equipment, but can be widely used for the fixation of other medical tubing according to the actual needs of medical operations.

[0042] The device embodiments described above are merely illustrative. Some or all of the components can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ECMO catheter fixation device, characterized in that, In order, they include: Skin tape, padding, connecting straps that come into contact with the patient's skin, and catheter tape that comes into contact with the ECMO catheter; The ECMO catheter fixation device is provided with two connecting straps, which are spaced a predetermined distance apart in the extension direction of the ECMO catheter. Each connecting strap is connected to two catheter tapes, and each catheter tape has a length of at least two loops wrapped around the ECMO catheter; The connecting strip is disposed between the skin tape and the catheter tape, and the skin tape, the connecting strip, and the catheter tape are integrally formed; The padding layer has an opening corresponding to the connecting strip, through which the connecting strip and the conduit tape protrude.

2. The ECMO catheter fixation device according to claim 1, characterized in that, The skin tape has a backing film on its adhesive side; and / or the catheter tape has a backing film on its adhesive side.

3. The ECMO catheter fixation device according to claim 1, characterized in that, The length of the catheter tape is 6-15cm and the width is 0.5-2cm.

4. The ECMO catheter fixation device according to claim 1, characterized in that, The skin tape is 15-25cm long and 6-15cm wide.

5. The ECMO catheter fixation device according to claim 1, characterized in that, The padding layer has a length of 5-10cm, a width of 5-10cm, and a height of 0.2-0.5cm.

6. The ECMO catheter fixation device according to claim 1, characterized in that, The connecting strip has a length of 0.3-0.8cm and a width of 0.5-1cm.

7. The ECMO catheter fixation device according to any one of claims 1 to 6, characterized in that, The skin tape, the padding layer, the connecting strip, and the catheter tape are connected to each other by sewing.

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