Anti-electromagnetic interference flexible tensile medical cable

An anti-electromagnetic interference and cable technology, applied in the manufacture of insulated cables, communication cables, inductors/transformers/magnets, etc., can solve the problems of limited shielding signal transmission capacity, poor environmental performance, cost and environmental damage, etc.

Active Publication Date: 2021-02-12
湖南华菱线缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, cables are required in minimally invasive surgical equipment or monitoring medical devices, such as an improved medical cable provided by Chinese patent CN201220170790.4, these cables can only be used once and discarded after use, causing The increase in cost and the post-waste disposal and combustion will cause damage to the environment
In addition, the cable needs to be moved frequently during use. The inner shielding layer and outer shielding layer provided by the above-mentioned patents are made of tinned copper braided mesh layer, which has limited shielding signal transmission capacity and poor environmental protection performance; Both operators and patients have brought great inconvenience

Method used

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  • Anti-electromagnetic interference flexible tensile medical cable
  • Anti-electromagnetic interference flexible tensile medical cable
  • Anti-electromagnetic interference flexible tensile medical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] An anti-electromagnetic interference flexible tensile medical cable is characterized in that, from the inside to the outside, it successively includes a centrally filled Kevlar fiber reinforced core 1-1, several twisted cable cores 1 around the reinforced core 1-1, and a magnetic shield Layer 2, braiding layer 3 and outer sheath 4; the cable core 1 includes a conductor 11 and an insulating layer 12 from the inside to the outside, the insulating layer 12 is extruded on the outside of the conductor 11, and the conductor 11 is made of silver-plated annealed copper wire. The silver-plated annealed copper wire for preparing the conductor is twisted with a monofilament with a conductor diameter of 0.08mm; the pitch ratio between the magnetic shielding layer 2 and the cable core 1 is 14, and the magnetic shielding layer 2 is wrapped around the cable core 1 The outer wrapping overlap rate is 25%;

[0055] The insulating layer 12 is made of polyfluoroethylene propylene material,...

Embodiment 2

[0077] The difference between this embodiment and Embodiment 1 is that the thickness of the insulating layer 12 is 0.125 mm, the pitch ratio between the magnetic shielding layer 2 and the cable core 1 is 20, and the wrapping ratio of the magnetic shielding layer 2 wrapped around the outside of the cable core 1 The braiding density of copper wire braiding layer 31 is 85%, and the braiding density of aramid fiber braiding layer 32 is 85%.

[0078] The preparation material of the magnetic shielding layer provided in this embodiment includes the following components by weight components:

[0079]

[0080] Among them, the magnetic Fe 3 o 4 / polyaniline / ZrO 2 Nanoparticles, by weight components, include the following components:

[0081]

[0082]

[0083] 5. A high-efficiency anti-electromagnetic interference and anti-tension medical cable according to claim 2, characterized in that the magnetic Fe 3 o 4 / polyaniline / ZrO 2 A method for preparing nanoparticles, compris...

Embodiment 3

[0100] The difference between this embodiment and Embodiment 1 is that the thickness of the insulating layer 12 is 0.15mm, the pitch ratio between the magnetic shielding layer 2 and the cable core 1 is 30, and the magnetic shielding layer 2 is wrapped around the outside of the cable core 1. The wrapping overlapping ratio is 45%, the braiding density of the copper wire braiding layer 31 is 90%, and the braiding density of the aramid fiber braiding layer 32 is 87.5%.

[0101] The preparation material of the magnetic shielding layer provided in this embodiment includes the following components by weight components:

[0102]

[0103] Among them, the magnetic Fe 3 o 4 / polyaniline / V 2 o 5 Nanoparticles, by weight components, include the following ingredients:

[0104]

[0105] Magnetic Fe 3 o 4 / polyaniline / V 2 o 5 A method for preparing nanoparticles, comprising the following steps:

[0106] 1) Add 10 parts of Fe 2 (SO 4 ) 3 Soluble in ethylene glycol to form a 0...

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Abstract

The invention provides an anti-electromagnetic interference flexible tensile medical cable. The anti-electromagnetic interference flexible tensile medical cable sequentially comprises a central filling Kevlar fiber reinforced core, a plurality of stranded cable cores surrounding the reinforced core, a magnetic shielding layer, a braided layer and an outer sheath layer from inside to outside, eachcable core comprises a conductor and an insulating layer. According to the Anti-electromagnetic interference flexible tensile medical cable provided by the invention, magnetic Fe3O4 / polyaniline / metaloxide nanoparticles wrapped by carboxyl functionalized multi-walled carbon nanotubes with fragmented surfaces, and an Nb2Al-Calginate multilayer polymer with a high-conductivity microstructure form amagnetic shielding material with three-dimensional honeycomb pores on a PDMS wedge-shaped plate through a freeze-drying method. According to the medical cable provided by the invention, the conductiveproperties of the magnetic Fe3O4 / polyaniline / metal oxide nanoparticles are further improved by using the high conductivity microstructure brought by the Nb2AlC, so that the medical cable provided bythe invention has excellent mechanical properties and flexibility while having dual shielding properties.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to an anti-electromagnetic interference flexible tensile medical cable. Background technique [0002] In recent years, with the wide application of electronics and information technology in medical electrical equipment, and the rapid development of new communication technologies (such as personal communication systems, cellular phones, etc.) The electromagnetic environment is increasingly complex. On the one hand, it may be interfered by electromagnetic energy emitted by surrounding electrical equipment during its use, causing harm to patients; on the other hand, if its electromagnetic compatibility index does not meet the requirements, because it will also emit electromagnetic energy, it may It will affect the normal operation of radio communication services and other surrounding equipment [0003] Monitoring medical devices are mainly used for clinical monitoring, rea...

Claims

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Application Information

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IPC IPC(8): H01B11/00H01B7/17H01B7/18H01B7/22H01B7/28H01F41/00C08L67/04C08L5/04C08L79/02C08K3/22C08K7/24C08K3/14C08K3/04C08K9/06C08K13/06
CPCH01B11/00H01B7/17H01B7/1875H01B7/1825H01B7/183H01B7/228H01B7/28H01F41/00C08L67/04C08L2203/202C08K2201/01C08K2003/2275C08K2201/011C08K2003/2241C08K2003/2244C08L2205/03C08L5/04C08L79/02C08K3/22C08K7/24C08K3/14C08K3/041C08K9/06C08K13/06Y02A30/00
Inventor 王焱张海平王振金陈彦陈颖
Owner 湖南华菱线缆股份有限公司
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