Medical implantable cable

Abstract

The utility model discloses a medical implantable cable, which belongs to the technical field of medical cables, solves the problems that an existing device cannot restrain interference of electromagnetic waves generated by a cable core on implantable medical equipment and external equipment, and equipment faults or serious potential safety hazards are easily caused, and comprises a pure copper wire core, the pure copper wire core is arranged in the protection sleeve, the outer surface of the pure copper wire core is fixedly and compositely connected with the inner surface of the inner insulation sleeve, the protection sleeve comprises a thermal shrinkage film layer, a first shielding layer, a second shielding layer and a third shielding layer, and the pure copper wire core can be tightly wrapped by heating the thermal shrinkage film layers at the two ends of a cable notch through fire; through the arrangement of the thermal shrinkage film layer, the first shielding layer and the third shielding layer, electromagnetic waves generated by the pure copper wire core can be effectively prevented from radiating outwards, interference of external electromagnetic waves on the pure copper wire core can be prevented, the stability and accuracy of signals in the pure copper wire core can be ensured, and the implantable medical device and external equipment can operate stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical cable technical field, concretely is a medical implantable cable. BACKGROUND

[0002] The medical implantable cable is used for connecting the data transmission and power supply line of implantable medical instrument and external equipment, when the current flows in the cable, according to the basic principle of electromagnetism, the varying current will generate the magnetic field in its surrounding. And the alternating change of electric field and magnetic field will form electromagnetic wave. The electromagnetic wave in the cable will produce electromagnetic interference to external instrument.

[0003] Through the search, the application book with patent application number 202121995814.5 discloses an anti-tension medical cable, which comprises an inner sheath, the outer side of the inner sheath is provided with a protective inner layer, the outer side of the protective inner layer is provided with an anti-tension inner layer, the inner surface of the protective inner layer is fixedly connected with the outer surface of the inner sheath, the outer surface of the protective inner layer is fixedly connected with the inner surface of the anti-tension inner layer, the outer side of the anti-tension inner layer is provided with a flame-retardant layer, the outer side of the flame-retardant layer is provided with an anti-tension outer layer, the inner surface of the flame-retardant layer is fixedly connected with the outer surface of the anti-tension inner layer, the outer surface of the flame-retardant layer is fixedly connected with the inner surface of the anti-tension outer layer, and the outer side of the anti-tension outer layer is provided with a buffer layer.

[0004] Although the anti-tension medical cable can be separated and arranged to the cable core, the mutual influence caused by the signal between the cable cores is avoided, but the anti-tension medical cable cannot inhibit the electromagnetic wave generated by the cable core from interfering with the implantable medical instrument and external equipment, which is easy to cause equipment failure or serious safety hazard.

[0005] Therefore, we propose a medical implantable cable. UTILITY MODEL CONTENT

[0006] In view of the defects of the prior art, the utility model provides a medical implantable cable, which solves the problems that the existing device cannot inhibit the electromagnetic wave generated by the cable core from interfering with the implantable medical instrument and external equipment, and is easy to cause equipment failure or serious safety hazard.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a medical implantable cable, comprising a pure copper wire core, the pure copper wire core is arranged in the inside of the protective sleeve, and the outer surface of the pure copper wire core is fixedly connected with the inner surface of the inner insulation sleeve.

[0008] The protective sleeve comprises a heat-shrinkable film layer, a first shielding layer, a second shielding layer and a third shielding layer, the heat-shrinkable film layer is sleeved outside the pure copper wire core, the outer surface of the heat-shrinkable film layer is sleeved with the first shielding layer, the outer surface of the first shielding layer is sleeved with the second shielding layer, and the outer surface of the second shielding layer is provided with the third shielding layer.

[0009] Preferably, the inner surface of the heat-shrinkable film layer is fixedly connected to the outer surfaces of the three pure copper wire cores, the inner surface of the first shielding layer is fixedly connected to the outer surface of the heat-shrinkable film layer, and the inner surface of the second shielding layer is fixedly connected to the outer surface of the first shielding layer, wherein, after the cable is cut, the heat-shrinkable film layer on the two end incisions can be heated to tightly wrap the outer surface of the inner insulation sleeve, thereby increasing the stability of the pure copper wire core inside the protective sleeve, and the first shielding layer and the second shielding layer can effectively block the electromagnetic waves generated by the pure copper wire core from radiating outward, prevent external electromagnetic waves from interfering, and ensure the stability and accuracy of the signals inside the cable.

[0010] Preferably, the protective sleeve further comprises a flame-retardant layer and a protective layer, the inner surface of the flame-retardant layer is fixedly connected to the outer surface of the second shielding layer, the inner surface of the third shielding layer is fixedly connected to the outer surface of the flame-retardant layer, and the inner surface of the protective layer is fixedly connected to the outer surface of the third shielding layer, wherein the third shielding layer can further block the electromagnetic waves generated by the pure copper wire core from radiating outward.

[0011] Preferably, the first shielding layer is made of aluminum foil, the second shielding layer is a metal mesh sleeve woven by pure copper wires, and the third shielding layer is made of perfluoroalkoxy resin, wherein the perfluoroalkoxy resin has excellent insulation performance and shielding performance due to its unique chemical structure and physical properties, can effectively resist external electromagnetic interference, and ensure stable signal transmission.

[0012] Preferably, the flame-retardant layer and the protective layer are made of polyimide and polytetrafluoroethylene respectively, wherein the polyimide is heat-resistant and non-flammable, and harmless to human body under normal use conditions, and the polytetrafluoroethylene has extremely high temperature resistance, excellent chemical inertness and biocompatibility, and almost does not react with all chemicals and has no irritation to human tissues.

[0013] The utility model provides a kind of medical implantable cable. It has the following beneficial effects:

[0014] 1. The medical implantable cable, by heating the heat shrink film layer at both ends of the cable cut with fire, the pure copper wire core can be tightly covered, through the setting of the heat shrink film layer, the first shielding layer and the third shielding layer, the electromagnetic wave generated by the pure copper wire core can be effectively shielded from the outside, at the same time, prevent the interference of external electromagnetic wave to the pure copper wire core, can ensure the stability and accuracy of the signal inside the pure copper wire core, so as to make the implantable medical device and the external equipment stable operation, higher safety, solve the problem that the existing device cannot inhibit the electromagnetic wave generated by the cable core to interfere with the implantable medical device and the external equipment, easy to cause equipment failure or serious safety hidden trouble;

[0015] 2. The medical implantable cable, by setting the protective layer and the flame-retardant layer, when the cable is implanted in the body, the protective layer can be compatible with the human tissue, reduce the discomfort of the patient, and the flame-retardant layer is made of polyimide material, has the characteristics of heat resistance and non-combustibility, and is harmless to human body under normal use conditions. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic diagram of the utility model;

[0017] Fig. 2 It is a plane structure schematic diagram of the utility model;

[0018] Fig. 3 It is a split structure schematic diagram of the utility model.

[0019] In the drawing: 1, protective sleeve; 11, heat shrink film layer; 12, first shielding layer; 13, second shielding layer; 14, flame-retardant layer; 15, third shielding layer; 16, protective layer; 2, pure copper wire core; 21, inner insulation sleeve. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] As Figs. 1-3As shown: including pure copper wire core 2, pure copper wire core 2 is arranged inside the protective sleeve 1, the outer surface of the pure copper wire core 2 is fixedly connected with the inner surface of the inner insulation sleeve 21, the protective sleeve 1 includes heat shrink film layer 11, first shielding layer 12, second shielding layer 13 and third shielding layer 15, the heat shrink film layer 11 is sleeved on the outside of the pure copper wire core 2, the outer surface of the heat shrink film layer 11 is sleeved with the first shielding layer 12, the outer surface of the first shielding layer 12 is sleeved with the second shielding layer 13, the outer surface of the second shielding layer 13 is provided with the third shielding layer 15, the inner surface of the heat shrink film layer 11 is fixedly connected on the outer surface of the three pure copper wire cores 2, the inner surface of the first shielding layer 12 is fixedly connected on the outer surface of the heat shrink film layer 11, the inner surface of the second shielding layer 13 is fixedly connected on the outer surface of the first shielding layer 12, by heating the heat shrink film layer 11 at both ends of the cable cut with fire, the pure copper wire core 2 can be tightly covered, by the setting of the heat shrink film layer 11, the first shielding layer 12 and the third shielding layer 15, the electromagnetic wave generated by the pure copper wire core 2 can be effectively blocked from radiating outward, at the same time, the interference of external electromagnetic wave on the pure copper wire core 2 is prevented, the stability and accuracy of the signal inside the pure copper wire core 2 can be ensured, so as to make the implantable medical device and the external equipment run stably and safely, and the safety is higher;

[0023] Embodiment 2:

[0024] As Figs. 1-3 shown: the protective sleeve 1 further includes a flame-retardant layer 14 and a protective layer 16, the inner surface of the flame-retardant layer 14 is fixedly connected with the outer surface of the second shielding layer 13, the inner surface of the third shielding layer 15 is fixedly connected with the outer surface of the flame-retardant layer 14, the inner surface of the protective layer 16 is fixedly connected with the outer surface of the third shielding layer 15, the first shielding layer 12 is aluminum foil material, the second shielding layer 13 is a metal mesh sleeve woven with pure copper wire, the third shielding layer 15 is perfluoroalkoxy resin material, the flame-retardant layer 14 and the protective layer 16 are polyimide material and polytetrafluoroethylene material respectively, by the setting of the protective layer 16 and the flame-retardant layer 14, when the cable is implanted in the body, the protective layer 16 can be compatible with human tissues, reducing the discomfort of the patient, and the flame-retardant layer 14 is polyimide material, which has the characteristics of heat resistance and non-flammability, and is harmless to the human body under normal use conditions.

[0025] The working principle and use process of the utility model: the medical implantable cable, when using, cut the cable into appropriate length, and expose the both end pure copper wire core 2 and heat shrink film layer 11 all appropriate length, in order to connect implantable medical instrument and external equipment, then heat the heat shrink film layer 11 of cable cut end with fire, then heat shrink film layer 11 shrinks, can tightly cover pure copper wire core 2, when current flows in pure copper wire core 2, through heat shrink film layer 11, first shielding layer 12 and third shielding layer 15, can effectively block the electromagnetic wave generated by pure copper wire core 2 and radiate outward, prevent the interference of external electromagnetic wave to pure copper wire core 2 at the same time, can ensure the stability and accuracy of pure copper wire core 2 internal signal, and the protective layer 16 has excellent biocompatibility, when implanting the cable in the body, can be compatible with human tissue, reduce the discomfort of patient, and the flame retardant layer 14 is polyimide material, has the characteristics of heat resistance and nonflammable, and harmless to human body under normal use conditions.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for clarity, the skilled in the art should regard the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the skilled in the art can understand.

Claims

1. A medical implantable cable, comprising a pure copper wire core (2), the pure copper wire core (2) is arranged inside a protective sleeve (1), the outer surface of the pure copper wire core (2) is fixedly connected with the inner surface of the inner insulation sleeve (21); characterized in that The protective sleeve (1) comprises a heat shrinkable film layer (11), a first shielding layer (12), a second shielding layer (13) and a third shielding layer (15), the heat shrinkable film layer (11) is sleeved outside the pure copper wire core (2), the outer surface of the heat shrinkable film layer (11) is sleeved with the first shielding layer (12), the outer surface of the first shielding layer (12) is sleeved with the second shielding layer (13), and the outer surface of the second shielding layer (13) is provided with the third shielding layer (15).

2. An implantable medical cable according to claim 1, wherein: The inner surface of the heat shrinkable film layer (11) is fixedly connected on the outer surfaces of the three pure copper wire cores (2), the inner surface of the first shielding layer (12) is fixedly connected on the outer surface of the heat shrinkable film layer (11), and the inner surface of the second shielding layer (13) is fixedly connected on the outer surface of the first shielding layer (12).

3. A medical implantable cable according to claim 1, wherein: The protective sleeve (1) further comprises a flame-retardant layer (14) and a protective layer (16), the inner surface of the flame-retardant layer (14) is fixedly connected with the outer surface of the second shielding layer (13), the inner surface of the third shielding layer (15) is fixedly connected with the outer surface of the flame-retardant layer (14), and the inner surface of the protective layer (16) is fixedly connected with the outer surface of the third shielding layer (15).

4. A medical implantable cable according to claim 3, wherein: The first shielding layer (12) is an aluminum foil material, the second shielding layer (13) is a metal mesh sleeve woven by pure copper wires, and the third shielding layer (15) is a perfluoroalkoxy resin material.

5. A medical implantable cable according to claim 4, wherein: The flame-retardant layer (14) and the protective layer (16) are respectively made of polyimide and polytetrafluoroethylene.

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