A kind of body surface heating blanket of uniform heat distribution
Technical field
The present invention relates to a kind of heating blanket, the body surface heating blanket of particularly a kind of uniform heat distribution.
Background technology
Existing human body heat riser includes traditional electric blanket and emerging inflation heating blanket.
Electric blanket mainly realizes heat conduction using electronic component heating, is resistance-type whole body heating blanket, passes through cotton or wool
The fabric of matter and direct body contact, implement heat output, can supplement 15% or so body heat.Existing electric blanket is because built-in
Electronic component and limited by blanket fabric, it is impossible to sterilized and special messenger is special, the risk that there is infection, and resistance-type heating is deposited
In the uneven touch point temperature highest situation of heat conduction, easy skin ambustion, it is impossible to uniformly send hot radiating.Another resistance-type whole body heating
Blanket is not applicable in human body intervention operation class operation, exists because of the risk that electromagnetic compatibility is disturbed(Such as electric knife shelf depreciation,
Capital operation accident can be caused).Accordingly, it is capable to which the convection type inflation heating blanket that scattered even heat continues heat supply arises at the historic moment and obtained
To be widely used in medical field.
The problem of existing inflation heating blanket generally existing heat skewness, the interface being connected with inflation heat riser
End is hotter, away from interface end partly because temperature is relatively low the reason for heat exchange, therefore causes thermal loss big, huge energy consumption,
Rate of heat exchange is low, or even the consequence that delay patient treats.Existing inflation heating blanket is also because degree of adhesion is not enough simultaneously, during inflation
Between occur warm air in degumming or even situation about separating, heating blanket between slightly long fabric and be gradually lost in, temperature rise effect is had a greatly reduced quality.
The Chinese invention patent of applicant's earlier application《A kind of disposable body surface heating blanket》(The patent No.
CN201420702420.X)For existing inflation heating blanket degree of adhesion it is not enough the problem of, it is proposed that using high frequency heating and
Heat pressing process formation tack line, it is ensured that basic unit, air-permeable layer and ventilated membrane bond very firm, are not readily separated.The heating simultaneously
The air-permeable layer of blanket is provided with air-vent, and preferably the body of patient is heated, but the patent still fails thoroughly to solve heating
The problem of blanket heat skewness, the inlet port of blanket body is warmmer, and the portion temperature away from inlet port is relatively low.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of body surface heating blanket of uniform heat distribution, design
The irregular breathable microporous that different gas channels and aperture differs, is sent hot gas by the gas channel in body surface heating blanket
It is poor using the micropore pilot pressure between the breathable microporous of different pore size to breathable microporous, rapidly by hot gas in body surface heating blanket
Temperature adjustment to equilibrium state.
The technical solution adopted for the present invention to solve the technical problems is:
It is provided with a kind of body surface heating blanket of uniform heat distribution, including blanket body, the blanket body and supplies machine with hot gas
The connected air inlet of escaping pipe, the blanket body includes basic unit, air-permeable layer and the ventilated membrane between basic unit and air-permeable layer, institute
State the tack line that basic unit, air-permeable layer and ventilated membrane are heated by high frequency and heat pressing process is formed to be bonded together, the bonding
Line will be separated out gas channel in blanket body, and air flows road, institute are formed between two be located along the same line tack line
State and the micro- cheesing techniques of laser are provided with the breathable microporous that pore size differs in air-permeable layer.
In the present invention, the breathable microporous is distributed in gas channel surface, and the breathable microporous aperture close to air inlet is smaller,
Breathable microporous aperture away from air inlet is larger.Due to the relation of heat exchange, the hot air temperature of inlet port is higher, away from air inlet
The hot air temperature at mouth end is relatively low, therefore, and the breathable microporous aperture away from air inlet is larger, and the amount that hot gas is discharged by increasing makes up
The deficiency of temperature, while making the hot gas of inlet port quickly add to the end away from air inlet, rapidly by body surface heating blanket
The temperature adjustment of interior hot gas is to equilibrium state.
Further, some first gas channels parallel to each other are provided with the blanket body, air inlet is located at the first gas
Breathable microporous, the breathable microporous edge are set along the direction away from air inlet on one end of circulation road, first gas channel
Direction aperture away from air inlet gradually increases.
Further, second gas channel parallel with the first gas channel, described are additionally provided with the blanket body
Two gas channels are arranged on the outside of the first gas channel, breathable microporous arragement direction and the first gas on second gas channel
The breathable microporous arragement direction of circulation road on the contrary, breathable microporous on the second gas channel along the direction aperture away from air inlet by
It is tapered small.The breathable microporous arragement direction of breathable microporous arragement direction and the first gas channel on second gas channel on the contrary,
Convection current is easily formed between two air flues, accelerates the gas flowing mixing in blanket body, further reaches temperature equalization state.
Further, the breathable microporous is in " S " type arranged distribution on gas channel surface.
In the present invention, the basic unit is nonwoven layer.
In the present invention, the basic unit is formed by nonwoven layer and aluminium foil layer by melt blown technology.
In the present invention, the air-permeable layer includes nonwoven layer and coating layer, and the coating layer overlays on the surface of air-permeable layer.
The beneficial effects of the invention are as follows:
The body surface heating blanket of the present invention breaks through existing heating glow mode, passes through micropore air pressure guiding technique and air fluid
It is irregular that the principle of mechanics, the heat energy distribution effect reached as needed, the different gas channel of design and aperture are differed
Breathable microporous, is sent to breathable microporous by hot gas by the gas channel in body surface heating blanket, utilizes the breathable microporous of different pore size
Between micropore pilot pressure it is poor, rapidly by the temperature adjustment of hot gas in body surface heating blanket to equilibrium state so that atmospheric heat
The coverage rate of whole body surface heating blanket is uniformly distributed in, hot Homogeneouslly-radiating is persistently sent in realization, is that gentle safety keeps patient temperature
There is provided possible, the patient for keeping body temperature in surgical procedure using conventional vacuum devices such as electric blanket, hot-water bottles is reduced, because of fiber crops
The liquor-saturated body temperature that can not perceive causes ischemic to be burnt the risk with body fluid accumulation.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and examples.
Fig. 1 is the body surface heating blanket front schematic view of the present invention.
Fig. 2 is the body surface heating blanket schematic rear view of the present invention.
Fig. 3 is the exploded view of the blanket body of the present invention.
Embodiment
Referring to figs. 1 to Fig. 3, the invention provides a kind of body surface heating blanket of uniform heat distribution, including blanket body 1, institute
State and the air inlet 11 that the escaping pipe for supplying machine with hot gas is connected is provided with blanket body 1, the blanket body 1 includes basic unit 2, breathed freely
Layer 3 and the ventilated membrane 4 between basic unit 2 and air-permeable layer 3.The basic unit 2 is nonwoven layer.The air inlet of the present embodiment 11
In in basic unit 2 and ventilated membrane 4, hot gas is flowed into after blanket body 1 from hot gas supply machine, and hot gas is mainly distributed on ventilated membrane 4 and ventilative
Between layer 3, and flowed out to from air-permeable layer 3 on patient body.The air-permeable layer 3 of the present embodiment is by up of three layers, wherein two layers of formation
Non-woven fabrics, another layer is that the micro- cheesing techniques of laser are provided with the breathable microporous that pore size differs in coating layer, air-permeable layer 3
8。
The basic unit 2, air-permeable layer 3 and ventilated membrane 4 are heated by high frequency and the tack line 5 of heat pressing process formation is bonded in
Together, the ventilated membrane 4 of the present embodiment and air-permeable layer 3 are to separate, and the two is made up of different materials, it is therefore necessary to use high week
Basic unit 2, ventilated membrane 4, air-permeable layer 3, could be bonded together by Wave heating formation tack line 5.The tack line 5 is by blanket body 1
Inside it is separated out gas channel 6.The tack line 5 that the tack line 5 of outermost is substantially surrounded in a rectangle, rectangle is straight line
Air flows road 7 is formed between bar, two tack lines 5 being located along the same line, passes through these gentle flow points of gas channel 6
By-path 7, can make hot gas flowing and circulation in blanket body 1, can improve the utilization rate of energy.The breathable microporous 8 is in " S " type
Arranged distribution is on the surface of gas channel 6.
In the present embodiment, some first gas channels 61 and the second air-flow parallel to each other are provided with the blanket body 1
Passage 62, first gas channel 61 simultaneously comes the middle part of blanket body 1, and air inlet 11 is located at one end of the first gas channel 61,
Second gas channel 62 is arranged on the outside of the first gas channel 61.Along away from air inlet 11 on first gas channel 61
Direction breathable microporous 8 is set, and breathable microporous 8 gradually increases along the direction aperture away from air inlet 11, by increasing in distal end
Plus the amount of discharge hot gas makes up the deficiency of temperature, while making the hot gas at the end of air inlet 11 quickly add to the another of remote air inlet 11
One end, rapidly by the temperature adjustment of hot gas in body surface heating blanket to equilibrium state.Further, on second gas channel 62
The arragement direction of breathable microporous 8 and the first gas channel 61 the arragement direction of breathable microporous 8 on the contrary, on the second gas channel 62
Breathable microporous 8 along the direction decreasing pore size away from air inlet 11, make the first gas channel 61 and the second gas channel 62 it
Between easily form convection current, accelerate the gas flowing mixing in blanket body 1, further reach temperature equalization state.
The body surface heating blanket of the present invention breaks through existing heating glow mode, passes through micropore air pressure guiding technique and air
What hydromechanical principle, the heat energy distribution effect reached as needed, the different gas channel of design and aperture were differed does not advise
Breathable microporous then, breathable microporous is sent to by the gas channel in body surface heating blanket by hot gas, utilizes the ventilative of different pore size
Micropore pilot pressure between micropore is poor, rapidly by the temperature adjustment of hot gas in body surface heating blanket to equilibrium state so that air
Even heat is distributed in the coverage rate of whole body surface heating blanket, and hot Homogeneouslly-radiating is persistently sent in realization, is that gentle safety keeps patient
Body temperature reduces the patient for keeping body temperature in surgical procedure using conventional vacuum devices such as electric blanket, hot-water bottles there is provided possible,
Ischemic is caused to be burnt the risk with body fluid accumulation because anesthesia can not perceive body temperature.
This product is supported the use by micropore air pressure guiding technique and the hydromechanical principle of air with hot gas supply machine
Body surface heating blanket on, the basic unit 2 of body surface heating blanket and the close adhesion of ventilated membrane 4 ensure that warm air does not leak;Air-permeable layer 3 with thoroughly
It is irregular that the adhesion of air film 4, the heat energy distribution effect reached as needed, the different gas channel 6 of design and aperture are differed
Breathable microporous 8, is sent to breathable microporous 8 by hot gas by the gas channel 6 in body surface heating blanket, utilizes the ventilative micro- of different pore size
Micropore pilot pressure between hole 8 is poor, rapidly by the temperature adjustment of hot gas in body surface heating blanket to equilibrium state so that air heat
Amount is uniformly distributed in the coverage rate of whole body surface heating blanket, it is to avoid the notable heat skewness of temperature difference that one is hot while the other is cold
Situation, effective prevents blanket body 1 because of the separation between each functional layer caused by being excessively heated while insulation.It is uniformly distributed
Stream of hot air, by micropore be oriented to distribution after formed localized hot-air vortex is attached to body surface heating blanket cover week
Enclose, so that form a reliable and stable body surface heating control system carries out body temperature managerial role to patient, while also can be more
Heat exchanger effectiveness is improved to be significant, reduces heat energy loss, the efficiency of body temperature management is improved.
The above, the simply better embodiment of the present invention, but the present invention is not limited to above-described embodiment, as long as
It reaches the technique effect of the present invention with any same or similar means, should all fall under the scope of the present invention.