CN207038218U - Medical monitoring instrumentation cable - Google Patents

Abstract

A kind of medical monitoring instrumentation cable, including cable core and extrusion the oversheath outside cable core, cable core includes signal wire, power line, internal shield, inner sheath, gasket for packing, interior lapping layer, external shielding layer and outer lapping layer, internal shield is located at outside signal wire, inner sheath is located at outside internal shield, gasket for packing and power line are between inner sheath and interior lapping layer, external shielding layer is positioned at interior, between outer lapping layer, oversheath extrusion is outside outer lapping layer, internal shield is tin plating thin copper wire net, external shielding layer is the tinned copper wire tiltedly wrapped, inner sheath is perfluoroethylene-propylene, oversheath is fluorubber, gasket for packing is aramid fiber, it is interior, outer lapping layer is polytetrafluoroethylene film.The corrosive power of chemical-resistant reagent and various soda acid solvents, high-low temperature resistant ability, ageing-resistant ability, tear-resistant and ultraviolet-resistant capacity are able to full-scope safeguards, meet the index request of biocompatibility；Avoid producing electromagnetic interference, reduce the error probability of patient monitor；It is simple in construction, it is easy to make.

Description

Medical monitoring instrumentation cable

Technical field

The utility model belongs to technical field of electric wires and cables, and in particular to a kind of medical monitoring instrumentation cable.

Background technology

With the development of China's medical industry, medical device technology has obtained significant progress, the clinic of medical monitor Extend using increasingly extensive, and from ICU to public ward, cured from the large hospital of scale level to different medical unit or even community Treatment department extends.But generally speaking popularity rate is not high, still there are larger development potentiality and space.Lived especially as people Horizontal continuous improvement and the continuous enhancing of consuming capacity, health is more paid close attention to, the medical monitoring so as to further boosting The application of instrument.

As is known in the industry, the electric and signal connection of outside medical monitor and inside is both needed to use cable and cable matter The quality of amount can have an impact to the performance of patient monitor efficiency.It can be seen in disclosed Chinese patent literature and be set with Medical Instruments The related technical information of standby connecting cable, such as document A.CN2745185Y（A kind of connecting cable special for medical instruments）, text Offer B.CN101169991A（Cable for medical apparatus）, document C.CN105825934A（A kind of cable for medical apparatus and its system Preparation Method）With document D.CN106297976A（A kind of medical electrocardiograph private cable）, etc..

Above-mentioned document A is combined into by insulated conductor and being coated in the cable insulation outside insulated conductor Wai, and insulated conductor is by straight The insulating barrier served as by silicon rubber outside tinned copper wire and tinned copper wire of the footpath less than 0.12mm, cable insulation are outer by by food Level silicon rubber serves as and extrusion is outside insulating barrier；Above-mentioned document B is compiled by wire and the film layer being sequentially located at outside wire, anti-elater Tissue layer and serving, wire is by silver-plated or copper-clad conductor and perfluoroethylene-propylene（FEP）Form, film layer is polytetrafluoroethylene (PTFE) （PTFE）, play the resistance to drawing of cable, anti-elater braiding layer is made up of aramid fiber braiding, plays the resistance to torsion effect of cable, serving is Medical poisonless level silicon rubber；Above-mentioned document C is made up of core and line outer layer, line external sheath core, and core includes mutual stranding It is multigroup surpass five class twisted pair wire groups and wool filling group, and be coated on the multigroup of mutual stranding and surpass five class twisted pair wire groups and wool The first cotton paper belt outside filling group, line outer layer include internal shield, comprehensive core group, the second cotton paper band set from inside to outside Layer, external shielding layer and oversheath, and it is provided with a drainage thread and in external shielding layer between internal shield and comprehensive core group One second drainage thread is provided between comprehensive core group, comprehensive core group includes equally distributed more signal cores, power supplys Core and wire core；Above-mentioned document D structure is：The cross section that ecto-entad is arranged in order is circular restrictive coating, first Oblique covering and the first aluminium foil layer, filled out in three groups of power cables of the inner chamber of the first aluminium foil layer setting, some signal cables, some Filling line, it is circular inner restrictive coating, the second oblique covering that every group of power cable, which includes the cross section that ecto-entad is arranged in order, The interior intracavitary of second oblique covering sets two power lines, and the wrapped wheat of outer layer of two power lines pulls around bag separation layer, and the wheat pulls around Bag separation layer is located at the interior intracavitary of the second oblique covering.

Following shortcoming be present in aforementioned documents A and B：First, due to making without anti-electromagnetic interference capability, thus in reality The electromagnetic interference of periphery electronic equipment is subject to during and causes distorted signals, especially when this cable application is in medical monitoring During instrument, medicinal requirement can not be met because monitoring error probability is big；Second, due to by power line and signal wire set Together, thus the internal or mutual interference situation of itself can be produced between the two, such as power line produces electromagnetism to signal wire and done Disturb, cause the signal distortion exported by signal wire；Third, document A oversheath（Patent claims " the outer quilt of cable insulation "）Use food The oversheath of grade silicon rubber and document B（Patent claims " serving "）Using the nontoxic silicon rubber of medical grade, although being respectively provided with good The good feature of environmental protection and bending resistance, antitorque resistance to drawing effect, but chemical species, high temperature resistant and ageing-resistant performance etc. are relatively fragile.

Aforementioned documents C has the following disadvantages：First, because oversheath is using flexible PVC, thus chemically-resistant thing Matter, high temperature resistant, ageing-resistant effect are relative to be short of；Second, due to being provided that wool filling group in internal shield, the wool is filled out Though filling group plays the role of softness and play stranding rounding property, tensile capacity is fragile, thus can not meet industry Requirement；Third, due to the power supply core to being arranged between the first cotton paper layer and internal shield or signal core without itself Shielding measure, thus the anxiety that power supply core produces electromagnetic interference to signal core be present；Fourth, as a result of first, second Cotton paper layer is wrapped, thus high-low temperature resistant, corrosion-resistant, weather-proof and other effects are relatively limited；Fifth, because the overall structure of cable is relative Complexity, thus one side manufacturing cost is high, another aspect manufacture difficulty is big.

Following shortcoming be present in aforementioned documents D：First, because oversheath is using PVC or silicon rubber, thus it is not enough to body Existing desired chemical species, high temperature resistant, ageing-resistant effect；Second, due to direct extrusion PVC or silicon rubber outside the first oblique covering Glue, thus the high-low temperature resistant of cable entirety, anti-corrosion, weather-proof particularly electrical insulation capability are weaker；Third, patent do not provide first, The material of second oblique covering, filling line etc.；Fourth, complicated, manufacture difficulty and manufacturing cost are high.

For above-mentioned prior art, it is necessary to improved, technical scheme described below is in this background Caused by lower.

The content of the invention

Task of the present utility model is to provide a kind of resistance to height of chemical species burn into for helping to significantly improve oversheath Low temperature, ageing-resistant, tear-resistant, ultraviolet-resistant capacity and good biocompatibility is embodied, is advantageous to elimination and results from inside Electromagnetic interference and electromagnetic interference and using from outside avoid transmission signal distortion, be beneficial to simplify structure and the side of using Just manufacture and embody relatively cheap medical monitoring instrumentation cable.

What task of the present utility model was performed by, a kind of medical monitoring instrumentation cable, including cable core and extrusion exist Oversheath outside cable core, it is characterised by that described cable core includes a pair of signal wires, a pair of power lines, internal shield, inner sheath, filled out Rope, interior lapping layer, external shielding layer and outer lapping layer are filled, internal shield is arranged on outside a pair of signal wires, and inner sheath is arranged on interior screen Cover outside layer, gasket for packing and a pair of power lines between inner sheath and interior lapping layer, external shielding layer be located at interior lapping layer with outside around Between covering, described oversheath extrusion outside outer lapping layer, wherein：Described internal shield is tin plating thin copper wire net, institute The external shielding layer stated is the tinned copper wire tiltedly wrapped, and described inner sheath is perfluoroethylene-propylene, and described oversheath is fluorubber, Described gasket for packing is aramid fiber, and described interior lapping layer and outer lapping layer are polytetrafluoroethylene film.

In a specific embodiment of the present utility model, a pair of described signal wires are respectively by a signal conductor and extrusion Signal conductor insulating barrier outside signal conductor is formed；A pair of described power lines are respectively by power conductor and extrusion in power conductor Outer power conductor insulating barrier is formed.

In another specific embodiment of the present utility model, the signal conductor and power conductor are tin plating copper and tin B alloy wire stranded conductor；Described signal conductor insulating barrier and power conductor insulating barrier are perfluoroethylene-propylene.

One of technique effect of technical scheme provided by the utility model, due to by fluorubber as oversheath, it is thus resistance to The corrosive power of chemical reagent and various soda acid solvents, high-low temperature resistant ability, ageing-resistant ability, tear-resistant and ultraviolet-resistant capacity Full-scope safeguards are able to, and the index request of biocompatibility can be met；Two, as a result of inside and outside screen layer, thus both It can avoid resulting from the electromagnetic interference inside cable core, and can prevents the electromagnetic interference for coming from external environment condition, reliably kept away Exempt from transmission signal distortion, reduce the error probability of patient monitor；Three, because overall structure is simple thus not only easy to make, and And emerge from relatively cheap.

Brief description of the drawings

Fig. 1 is example structure figure of the present utility model.

Embodiment

Refer to Fig. 1, show the oversheath 2 of cable core 1 and extrusion outside cable core 1, cable core 1 include a pair of signal wires 11, A pair of power lines 12, internal shield 13, inner sheath 14, gasket for packing 15, interior lapping layer 16, external shielding layer 17 and outer lapping layer 18, Internal shield 13 is arranged on outside a pair of signal wires 11, and inner sheath 14 is arranged on outside internal shield 13, gasket for packing 15 and a pair of power supplys For line 12 between inner sheath 14 and interior lapping layer 16, external shielding layer 17 is preceding between interior lapping layer 16 and outer lapping layer 18 The extrusion of oversheath 2 stated outside outer lapping layer 18, wherein：Foregoing internal shield 13 is tin plating thin copper wire net, and foregoing External shielding layer 17 is the tinned copper wire tiltedly wrapped, and foregoing inner sheath 14 is perfluoroethylene-propylene, and foregoing oversheath 2 is fluorine rubber Glue, foregoing gasket for packing 15 are aramid fiber, and foregoing interior lapping layer 16 and outer lapping layer 18 are polytetrafluoroethylene film.

As shown in Figure 1, foregoing a pair of signal wires 11 are respectively by a signal conductor 111 and extrusion outside signal conductor 111 Signal conductor insulating barrier 112 is formed；Foregoing a pair of power lines 12 are respectively by power conductor 121 and extrusion outside power conductor 121 Power conductor insulating barrier 122 form.

In the present embodiment, aforementioned signal conductor 111 and power conductor 121 are tin plating signal bronze silk stranded conductor； Foregoing signal conductor insulating barrier 112 and power conductor insulating barrier 122 are perfluoroethylene-propylene.

In summary, technical scheme provided by the utility model compensate for the shortcoming in prior art, favorably accomplish Invention task, the technique effect referred in the superincumbent technique effect column of applicant is faithfully cashed.

Claims (3)

1. a kind of medical monitoring instrumentation cable, including cable core (1) and extrusion the oversheath (2) in cable core (1) outside, it is characterised in that Described cable core (1) includes a pair of signal wires (11), a pair of power lines (12), internal shield (13), inner sheath (14), gasket for packing (15), interior lapping layer (16), external shielding layer (17) and outer lapping layer (18), internal shield (13) are arranged on a pair of signal wires (11) Outside, inner sheath (14) is arranged on internal shield (13) outside, gasket for packing (15) and a pair of power lines (12) be located at inner sheath (14) with Between interior lapping layer (16), external shielding layer (17) is between interior lapping layer (16) and outer lapping layer (18), described oversheath (2) extrusion in outer lapping layer (18) outside, wherein：Described internal shield (13) is tin plating thin copper wire net, described external shield Layer (17) is the tinned copper wire tiltedly wrapped, and described inner sheath (14) is perfluoroethylene-propylene, and described oversheath (2) is fluorine rubber Glue, described gasket for packing (15) are aramid fiber, and described interior lapping layer (16) and outer lapping layer (18) are polytetrafluoroethylene (PTFE) Film.

2. medical monitoring instrumentation cable according to claim 1, it is characterised in that described a pair of signal wires (11) respectively by The signal conductor insulating barrier (112) of one signal conductor (111) and extrusion in signal conductor (111) outside is formed；A pair of described electricity Source line (12) is respectively made up of the power conductor insulating barrier (122) of power conductor (121) and extrusion in power conductor (121) outside.

3. medical monitoring instrumentation cable according to claim 2, it is characterised in that the signal conductor (111) and power supply Conductor (121) is tin plating signal bronze silk stranded conductor；Described signal conductor insulating barrier (112) and power conductor insulating barrier (122) it is perfluoroethylene-propylene.