Disposable fixing device for cable outlet of implantable left ventricle auxiliary device

Abstract

The utility model discloses a disposable fixing device for a cable outlet of an implantable left ventricle auxiliary device. The disposable fixing device aims to solve the problem that when an existing percutaneous cable is covered with gauze, cable compression and skin injury are likely to be caused. The cable fixing device comprises a cable fixing body, the cable fixing body is made of a transparent silica gel material, a circular cable fixing opening is formed in the center of the cable fixing body, and the diameter of the cable fixing opening is matched with the diameter of a percutaneous cable; the cable fixing body is also provided with an opening. The cable fixing device is simple in structure and convenient to use, the cable fixing body is made of a transparent silica gel material, the material is hard, and a percutaneous cable can be locally shaped, so that a cable outlet is better fixed, skin is prevented from being pressed, and related infection of the cable is reduced; and meanwhile, the transparent material is adopted, so that medical staff can conveniently observe the skin condition of a cable fixing area and timely find red and swollen, infection or other problems.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a disposable fixing device for the cable outlet of an implantable left ventricular assist device. Background Art

[0002] An implantable left ventricular assist device is a medical device used to treat patients with severe heart failure. This device mechanically assists the heart in pumping blood to improve blood circulation. It is usually implanted into the patient's body and connected to an external power source through a percutaneous cable to make the device operate and ensure the patient's heart blood supply.

[0003] Clinically, 30 - 50% of left ventricular assist patients have experienced cable-related infections. The main reason is that the percutaneous cable is not firmly fixed, resulting in the cable pulling and compressing the skin, causing skin breakdown, bacterial growth, and in severe cases, retrograde cable infection, leading to bacteria entering the bloodstream and even death.

[0004] Currently, clinically, sterile gauze is usually used to cover the cable outlet for fixation. However, due to the softness of the gauze material, the cable cannot be relatively fixed to the skin, easily causing pulling, infection, and long-term cable compression, resulting in skin damage or deformation. Utility Model Content

[0005] Therefore, this application provides a disposable fixing device for the cable outlet of an implantable left ventricular assist device to solve the problems of easy cable compression and skin damage when the existing percutaneous cable is covered with gauze.

[0006] To achieve the above objective, this application provides the following technical solutions:

[0007] A disposable fixing device for the cable outlet of an implantable left ventricular assist device, comprising a cable fixing body. The cable fixing body is made of transparent silicone material. A circular cable fixing opening is provided at the center of the cable fixing body, and the diameter of the cable fixing opening is adapted to the diameter of the percutaneous cable.

[0008] The cable fixing body is also provided with an opening. One end of the opening communicates with the cable fixing opening, and the other end communicates with the outside. The width of the opening is smaller than the diameter of the cable fixing opening.

[0009] Optionally, the cross-section of the cable fixing body is circular, the diameter of the cable fixing body is 30 - 50 mm, and the thickness of the cable fixing body is 4 - 6 mm.

[0010] Optionally, the cross-section of the cable fixing body is square, the side length of the cable fixing body is 30 - 50 mm, and the thickness of the cable fixing body is 4 - 6 mm.

[0011] Optionally, a silver ion dressing is covered on the side of the cable fixing body corresponding to the skin.

[0012] Optionally, the silver ion dressing is a thin film layer containing silver ions, and the thin film layer is connected to the cable fixing body by an adhesive method.

[0013] Optionally, the opening is a strip-shaped opening.

[0014] Optionally, a sterile packaging bag is arranged outside the cable fixing body.

[0015] Optionally, it further includes a sterile gauze used in cooperation with the cable fixing body; after the cable fixing body wraps the percutaneous cable, it is covered with the sterile gauze.

[0016] Compared with the prior art, the present application has at least the following beneficial effects:

[0017] 1. Based on further analysis and research of the problems in the prior art, the present application provides a disposable fixing device for the cable outlet of an implantable left ventricular assist device, including a cable fixing body. The cable fixing body is made of transparent silica gel material, and a circular cable fixing opening is provided at its central position. The diameter of the cable fixing opening is adapted to the diameter of the percutaneous cable; the cable fixing body is also provided with an opening; the structure of the present application is simple and convenient to use. The cable fixing body is made of transparent silica gel material, and the material is relatively hard, which can locally shape the percutaneous cable, so as to better fix the cable outlet, prevent skin compression, and reduce cable-related infections; at the same time, the use of transparent material can also facilitate medical staff to observe the skin condition of the cable fixing area and timely discover redness, infection or other problems.

[0018] 2. A silver ion dressing is covered on the side of the cable fixing body corresponding to the skin, which can effectively prevent the formation of pressure sores and promote wound healing, and helps to reduce inflammation and accelerate tissue repair.

[0019] 3. A sterile packaging bag is arranged outside the cable fixing body of the present application. After the silver ion dressing is covered on the cable fixing body, it is sterilized by ethylene oxide and then sealed and packaged, and then it can be used as a disposable fixing device. Description of the Drawings

[0020] In order to more intuitively illustrate the prior art and the present application, the following exemplary drawings are given. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / deletion / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0021] Figure 1 This is a schematic structural view of a disposable fixing device for the cable outlet of an implantable left ventricular assist device provided in the first embodiment of the present application;

[0022] Figure 2 is Figure 1 a schematic structural view of the percutaneous cable shown;

[0023] Figure 3 This is a schematic structural view of a disposable fixing device for the cable outlet of an implantable left ventricular assist device provided in the second embodiment of the present application.

[0024] Explanation of reference numerals:

[0025] 1. Cable fixing body;

[0026] 2. Cable fixing port;

[0027] 3. Opening;

[0028] 4. Percutaneous cable. Detailed implementation manners

[0029] The following further details the present application through specific embodiments in conjunction with the accompanying drawings.

[0030] In the description of the present application: Unless otherwise specified, "a plurality of" means two or more. Terms such as "first", "second", "third", etc. in the present application are intended to distinguish the objects being referred to, and do not have a special meaning in terms of technical connotations (for example, they should not be understood as emphasizing importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0031] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in the present application are generally indications of the general relative position relationship for the convenience of intuitive understanding with reference to the accompanying drawings, and are not absolute limitations on the position relationship in the actual product.

[0032] Embodiment 1

[0033] A disposable fixing device for the cable outlet of an implantable left ventricular assist device, as Figure 1 , Figure 2 shown, includes a cable fixing body 1. The cable fixing body 1 is made of transparent silicone material. A circular cable fixing port 2 is opened at the central position of the cable fixing body 1. The diameter of the cable fixing port 2 is adapted to the diameter of the percutaneous cable 4; the percutaneous cable 4 generally has a diameter of about 5 mm. The diameter of the cable fixing port 2 may be equal to the diameter of the percutaneous cable 4 or the diameter of the cable fixing port 2 may be slightly larger than the diameter of the percutaneous cable 4;

[0034] The cable fixing body 1 is also provided with an opening 3. One end of the opening 3 communicates with the cable fixing port 2, and the other end communicates with the outside. Moreover, the width of the opening 3 is smaller than the diameter of the cable fixing port 2.

[0035] The cable fixing body 1 is made of transparent silicone material. Compared with gauze, the silicone material is harder, which can locally shape the percutaneous cable and better fix the cable outlet, thereby preventing skin compression and reducing cable-related infections. At the same time, using a transparent material can also facilitate medical staff to observe the skin condition of the cable fixing area and promptly detect redness, infection or other problems.

[0036] Preferably, the cross-section of the cable fixing body 1 is circular, the diameter of the cable fixing body 1 is 30 - 50 mm, and the thickness of the cable fixing body 1 is 4 - 6 mm.

[0037] Preferably, the cable fixing body 1 has a front side and a back side. The front side is the side that fits the patient's skin; a silver ion dressing is covered on the side of the cable fixing body 1 corresponding to the skin-fitting side.

[0038] Further preferably, the outside of the cable fixing body 1 is provided with a sterile packaging bag. After covering the silver ion dressing on the cable fixing body 1, it is sterilized by ethylene oxide and then sealed for single use.

[0039] Advantages of choosing the silver ion dressing: It has antibacterial properties, can inhibit the growth of bacteria, reduce the risk of infection, and can effectively prevent the formation of pressure ulcers; it can promote healing. Silver ions also have the property of promoting wound healing, which helps to reduce inflammation and accelerate tissue repair.

[0040] Further preferably, the silver ion dressing is a thin film layer containing silver ions, and the thin film layer is connected to the cable fixing body 1 by an adhesive method.

[0041] In addition, the silver ion dressing can be made of a transparent material so as not to affect medical staff's observation of the skin condition of the cable fixing area.

[0042] Preferably, the opening 3 of the cable fixing body 1 is a strip-shaped opening. Other shapes of the opening 3 can also be used as long as the effect of opening and closing the cable fixing body 1 can be achieved, that is, the cable fixing body 1 is opened and then the cable fixing port 2 at the center of the cable fixing body 1 can be stuck outside the percutaneous cable 4.

[0043] Embodiment Two

[0044] Embodiment Two is basically similar to Embodiment One. The difference is that the shape of the cable fixing body 1 in Embodiment Two is slightly different; in this Embodiment Two, as Figure 3As shown, the cross section of the cable fixing body 1 is a square, the side length of the cable fixing body 1 is 30-50 mm, and the thickness of the cable fixing body 1 is 4-6 mm.

[0045] Of course, in addition to the above two embodiments, the cable fixing body 1 may also adopt other shapes.

[0046] When the above embodiment is used, the percutaneous cable 4 and the skin around the patient are first routinely disinfected, and then the packaging bag of the present fixing device is opened, and the cable fixing body 1 is opened to both sides along the opening 3, so that the percutaneous cable 4 is inserted along the opening 3 and fixed at the cable fixing port 2 in the center of the cable fixing body 1, and the percutaneous cable 4 is wrapped by the cable fixing body 1; at the same time, the front of the cable fixing body 1 fits the skin around the percutaneous cable 4, and the silver ion dressing covering the front can effectively prevent the occurrence of pressure sores, and the cable fixing body 1 can be adhered to the skin; finally, sterile gauze is used to cover the outside of the present fixing device and the cable outlet area to prevent the percutaneous cable 4 from being infected;

[0047] The sterile gauze on the upper layer of the cable fixing body 1 can fix the percutaneous cable 4 and provide a sterile environment for the cable outlet. When in use, the sterile gauze is adhered to the patient's skin through the adhesive strip.

[0048] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A disposable fixing device for a cable outlet of an implantable left ventricular assist device, characterized in that: It includes a cable fixing body, the cable fixing body is made of transparent silicone material, a circular cable fixing opening is opened at the center of the cable fixing body, and the diameter of the cable fixing opening is adapted to the diameter of the percutaneous cable; The cable fixing body is further provided with an opening, one end of the opening is communicated with the cable fixing port, and the other end of the opening is communicated with the outside, and the width of the opening is smaller than the diameter of the cable fixing port.

2. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: The cross section of the cable fixing body is circular, the diameter of the cable fixing body is 30-50 mm, and the thickness of the cable fixing body is 4-6 mm.

3. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: The cross section of the cable fixing body is a square, the side length of the cable fixing body is 30-50 mm, and the thickness of the cable fixing body is 4-6 mm.

4. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: The side of the cable fixing body corresponding to the skin contact is covered with silver ion dressing.

5. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 4, characterized in that: The silver ion dressing is a thin film layer containing silver ions, and the thin film layer is connected to the cable fixing body by bonding.

6. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: The opening is a strip-shaped opening.

7. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: A sterile packaging bag is arranged outside the cable fixing body.

8. The disposable fixing device for the cable outlet of an implantable left ventricular assist device according to claim 1, characterized in that: It also includes a sterile gauze used in conjunction with the cable fixing body; after the cable fixing body wraps around the percutaneous cable, it is covered by the sterile gauze.

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