CN207268939U

CN207268939U - A kind of electric wire for laryngoscope

Info

Publication number: CN207268939U
Application number: CN201721186634.6U
Authority: CN
Inventors: 杨普
Original assignee: Dongguan Taiza Wire & Cable Co Ltd
Current assignee: Dongguan Taiza Wire & Cable Co Ltd
Priority date: 2017-09-16
Filing date: 2017-09-16
Publication date: 2018-04-24
Anticipated expiration: 2027-09-16

Abstract

The utility model discloses a kind of electric wire for laryngoscope, conductor, insulating layer, shielded layer and restrictive coating are respectively equipped with from the inside to the outside, the insulating layer is the multiple winding bands composition for being wound in conductor, and the winding band is multi-pore structure, its material is polytetrafluoroethylene (PTFE).A kind of electric wire for laryngoscope provided by the utility model, outer diameter is small, and pliability is high.

Description

A kind of electric wire for laryngoscope

Technical field

Technical field of electric wires and cables is the utility model is related to, specifically, is related to a kind of electric wire for laryngoscope.

Background technology

Existing medical laryngoscope cable, insulating layer material generally use solid FEP (fluorinated ethylene propylene copolymer) or PFA （Tetrafluoroethylene-perfluoro alkoxy vinyl ethers copolymer）, solid FEP or the dielectric constant (also known as capacitivity) of PFA are larger, To ensure the electrostatic capacitance of electric wire, it is necessary to increase the thickness of insulating layer, cause increase and the softness of electric wire overall diameter dimensions Therefore the reduction of degree, during laryngoscopy, usually causes the discomfort of those who are investigated.

Utility model content

The purpose of this utility model is to provide a kind of electric wire for laryngoscope, outer diameter is small, pliability.

Technical solution is used by a kind of electric wire for laryngoscope disclosed in the utility model：A kind of electricity for laryngoscope Line, is respectively equipped with conductor, insulating layer, shielded layer and restrictive coating from the inside to the outside, and the insulating layer includes being wound in the multiple of conductor Band is wound, the winding band is made of mushy polytetrafluoroethylene material.

Preferably, the winding band is set by certain angle coiled conductor, and the winding angle is 30 ° -45 °.

Preferably, the multi-pore structure is molded by foam process, its porosity 20%-30%.

Preferably, 20% of degree of overlapping not less than winding bandwidth between the adjacent winding band.

Preferably, the winding band coiled conductor number of plies is not less than two layers, and the winding gap of adjacent layer is staggered Set.

Preferably, the conductor is made of more silver-coated copper wires.

Preferably, the jacket layer material is thermoplastic polyurethane elastomer rubber.

A kind of beneficial effect of electric wire for laryngoscope disclosed in the utility model is：Insulating layer is to be wound in twining for conductor Formed around band, which improves the pliability of electric wire, and winding the multi-pore structure of band reduces Jie of insulating layer Electric constant, in the case where electrostatic capacitance is certain, can reduce thickness of insulating layer, improve the pliability of electric wire, reduce electric wire Diameter dimension.

Brief description of the drawings

Fig. 1 is a kind of structure diagram of electric wire for laryngoscope of the utility model.

Embodiment

The utility model is further elaborated and illustrated with reference to specific embodiment and Figure of description：It refer to figure 1, a kind of electric wire for laryngoscope, is respectively equipped with leads from the inside to the outside, 1, insulating layer 2, shielded layer 3 and restrictive coating 4.

The conductor 1 is arranged on wire center, is the carrier of video signal transmission, and structure includes more silver-coated copper wires.

The insulating layer 2 wraps up conductor 1 and sets, and structure includes winding band, and the winding band is wound simultaneously according to certain angle Parcel conductor 1 is set, and the winding angle is the angle in winding strip length direction and conductor length direction, is generally 30 ° -45 °, Preferable angle is set to 45 °.

It is described winding band be made of mushy polytetrafluoroethylene material, the multi-pore structure by foam process into Type, since winding tape thickness is thin, the porosity generally to foam is 20%-30%, and more than 30% intensity of porosity is too low, easily damage It is bad.

In the winding band winding process, need to partly overlap between adjacent winding band, to improve its insulating properties, this implementation In example, 20% of degree of overlapping not less than winding bandwidth of adjacent winding band.

To improve its insulating properties, the winding band coiled conductor number of plies can set multilayer, and wrong in the winding process of upper strata Open the winding gap of bottom.

The shielded layer 3 is metal screen layer, generally copper wire net structure, for shielding interference signal, improves transmission The stability of vision signal.

The material of the restrictive coating 4 is thermoplastic polyurethane elastomer rubber, which has preferable wearability and resistance to Corrosivity, can effectively protect the internal material of electric wire, improve electric wire whole service life.

Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general Lead to it will be appreciated by the skilled person that can be to the technical solution of the utility model technical scheme is modified or replaced equivalently, without departing from this The spirit and scope of utility model technical solution.

Claims

1. a kind of electric wire for laryngoscope, is respectively equipped with conductor, insulating layer, shielded layer and restrictive coating from the inside to the outside, its feature exists In the insulating layer is the multiple winding bands composition for being wound in conductor, and the winding band is multi-pore structure, the winding band Material is polytetrafluoroethylene (PTFE).

2. a kind of electric wire for laryngoscope as claimed in claim 1, it is characterised in that the winding band is wound by certain angle Conductor is set, and the winding angle is 30 ° -45 °.

3. a kind of electric wire for laryngoscope as claimed in claim 1, it is characterised in that overlapping between the adjacent winding band 20% of degree not less than winding bandwidth.

4. a kind of electric wire for laryngoscope as claimed in claim 1, it is characterised in that the winding band coiled conductor number of plies is not Less than two layers, and the winding gap stagger setting of adjacent layer.

5. a kind of electric wire for laryngoscope as claimed in claim 1, it is characterised in that the multi-pore structure passes through the work that foams Skill is molded, its porosity 20%-30%.

6. a kind of electric wire for laryngoscope as described in claim 1-5 any one, it is characterised in that the conductor is by more Silver-coated copper wire forms.

A kind of 7. electric wire for laryngoscope as described in claim 1-5 any one, it is characterised in that the jacket layer material For thermoplastic polyurethane elastomer rubber.