CN203970385U - Portable pressure electrocardio measuring device - Google Patents
Portable pressure electrocardio measuring device Download PDFInfo
- Publication number
- CN203970385U CN203970385U CN201420342751.7U CN201420342751U CN203970385U CN 203970385 U CN203970385 U CN 203970385U CN 201420342751 U CN201420342751 U CN 201420342751U CN 203970385 U CN203970385 U CN 203970385U
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- encapsulation
- electrode
- measuring device
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- circuit board
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- 238000005538 encapsulation Methods 0.000 claims abstract description 72
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 230000036541 health Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000005224 forefinger Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
This utility model provides a kind of portable pressure electrocardio measuring device, comprises circuit board, positive encapsulation, back encapsulation, four back touch electrodes and two touch electrodes that head on; Described positive encapsulation button is located on the encapsulation of described back, and described circuit board is placed between described positive encapsulation and back encapsulation; Described four back touch electrodes are arranged at respectively four of the bottoms drift angle of described back encapsulation, and are connected with described circuit board; Described two touch electrodes that head on are arranged at respectively the both sides of described positive encapsulation, and are connected with described circuit board.Technical scheme provided by the utility model, has realized the object of being convenient to device assembling, has solved the high technical problem of maintenance destructive rate.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of portable pressure electrocardio measuring device.
Background technology
Along with the continuous intensification of people to health understanding, the equipment of similar portable pressure electrocardio measuring device is accepted by increasing people, but existing equipment causes the destructive rate of maintenance high because assembling is complicated.
Utility model content
The purpose of this utility model, for a kind of portable pressure electrocardio measuring device is provided, has realized it and has been convenient to the object of assembling, and has solved the high technical problem of maintenance destructive rate.
For realizing above-mentioned utility model object, this utility model provides a kind of portable pressure electrocardio measuring device, comprises circuit board, positive encapsulation, back encapsulation, four back touch electrodes and two touch electrodes that head on; Described positive encapsulation button is located on the encapsulation of described back, and described circuit board is placed between described positive encapsulation and back encapsulation; Described four back touch electrodes are arranged at respectively four of the bottoms drift angle of described back encapsulation, and are connected with described circuit board; Described two touch electrodes that head on are arranged at respectively the both sides of described positive encapsulation, and are connected with described circuit board.
Further, described back touch electrode comprises holding section, top and vertical weld part, and described back encapsulation correspondence is provided with the through hole for engaging described vertical weld part; Holding section, described top button is located at the edge of described back encapsulation, and described vertical weld part through described through hole and with described welding circuit board.
Further, described four back touch electrodes comprise the left and right feedback touch electrode in back and the positive touch electrode in back, the negative touch electrode in back; Described circuit board comprises telegraph circuit and filter circuit, and described telegraph circuit comprises anelectrode, negative electrode and feedback electrode, and described anelectrode, negative electrode and feedback electrode are connected with described filter circuit respectively; Described anelectrode, negative electrode are for importing the potential change signal of its health of measured to described filter circuit; The noise signal of described feedback electrode for coordinating described anelectrode, negative electrode filtering to enter described its front end of filter circuit; The left and right feedback touch electrode in described back, is arranged at respectively the left and right lower corner at the back of described back encapsulation, and is connected with described feedback electrode respectively; The positive touch electrode in described back, the negative touch electrode in back, be arranged at respectively the left and right upper corner at the back of described back encapsulation, and be connected with described anelectrode, negative electrode respectively.
Further, described anelectrode and negative electrode are at least one group.
Further, described in every corresponding one group of the both sides of described positive encapsulation, anelectrode and negative electrode are provided with one group of hollow out; Described two touch electrodes that head on are respectively head on positive touch electrode and head-on negative touch electrode, and are layed on described hollow out; The described positive touch electrode that heads on is electrically connected with anelectrode described at least one group and negative electrode with head-on negative touch electrode.
Further, described two touch electrodes that head on are rectangle.
Further, described positive encapsulation and back encapsulate by the corresponding buckle structure at edge separately and snap together.
Further, described portable pressure electrocardio measuring device also comprises a bar shaped battery, is provided with the battery hollow-out parts for the accommodating described bar shaped battery of fitting on described circuit board; Described bar shaped battery, is positioned in described battery hollow-out parts along its long limit, and one side props up the encapsulation of described back, and another side props up described positive encapsulation.
Further, described portable pressure electrocardio measuring device also comprises a buzzer and liquid crystal display screen, and the encapsulation of described back is provided with the buzzing groove for the accommodating described buzzer of fitting; On described circuit board, be provided with the liquid crystal display screen hollow-out parts for the accommodating described liquid crystal display screen of fitting; Described buzzer is arranged in described buzzing groove; And described liquid crystal display screen is supported by described buzzing groove by described liquid crystal display screen hollow-out parts.
Further, described buzzing groove is splitted structure, and the gap of described splitted structure is for the circuit of the fit described buzzer of accommodating connection and described circuit board.
Portable pressure electrocardio measuring device provided by the utility model, encapsulating button by front is located on the encapsulation of back, and circuit board is placed in the technical scheme between positive encapsulation and back encapsulation, realize it and be convenient to the object of assembling, reduce the destructive rate of product in maintenance process.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is this utility model portable pressure electrocardio measuring device package assembly solution schematic diagram;
Fig. 2 is the back encapsulating structure schematic diagram of this utility model portable pressure electrocardio measuring device.
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining this utility model, and can not be interpreted as restriction of the present utility model.
Embodiment mono-
Fig. 1 is this utility model portable pressure electrocardio measuring device package assembly solution schematic diagram.Fig. 2 is the back encapsulating structure schematic diagram of this utility model portable pressure electrocardio measuring device.Shown in Fig. 1 and Fig. 2, portable pressure electrocardio measuring device of the present utility model, comprises head-on touch electrodes of circuit board 101, positive encapsulation 102, back encapsulation 103, four back touch electrodes and two;
Particularly, positive encapsulation 102 is positioned at back and encapsulates 103 tops, and the two snaps together by the corresponding buckle structure at edge separately, and circuit board 101 is placed between positive encapsulation 102 and back encapsulation 103; Described buckle structure comprises that being arranged at front encapsulates the public buckle 104 at 102 edges and be arranged at back the master card groove 105 that encapsulates 103 edges.
Described four back touch electrodes are arranged at respectively four of the bottoms drift angle of back encapsulation 103, and are connected with circuit board 101; Wherein, each back touch electrode comprises holding section, top and vertical weld part, and back encapsulates 103 correspondences and is provided with the through hole for engaging vertical weld part; Holding section, top button is located at the edge of back encapsulation 103, and vertically weld part welds with circuit board 101 through through hole.
Further, above-mentioned four back touch electrodes specifically comprise that the left feedback touch electrode 109 in back, the right feedback touch electrode 110 in back, the positive touch electrode 111 in back and back bear touch electrode 112, and those back touch electrodes are also arranged at respectively left and right lower corner and the left and right upper corner at encapsulation 103 its backs, back independently, due to the isolation structure of the skeleton at back encapsulation 103 its backs, those back touch electrodes do not contact mutually, wherein, the left feedback touch electrode 109 in back is that the right feedback touch electrode 110 in phenogen, back is phenogen with the positive touch electrode 111 in back with the negative touch electrode 112 in back, and the negative touch electrode 112 in back is mirror symmetry body with the right feedback touch electrode 110 in back, the positive touch electrode 111 in back with the left feedback touch electrode 109 in back, for the introduction of four back touch electrodes, below mainly with the structure of the negative touch electrode 112 in back taking and be described as example with the connected mode of back encapsulation 103, particularly, the negative touch electrode 112 in back comprises holding section, top 1121, with vertical weld part 1122, 1122 ', be provided with the draw-in groove 113 for engaging holding section, top 1121 at the upper right corner place at back encapsulation 103 its edges, long limit, be respectively arranged with for engaging vertical weld part 1122 at the middle part of back encapsulation 103, 1122 ' through hole 114, 114 ', and the negative touch electrode 112 in back passes through vertical weld part 1122 with back encapsulation 103, 1122 ' through through hole 114, 114 ' and be fixedly connected with, as shown in Figure 1, on circuit board 101, be provided with welding hole 115, 115 ', and welding hole 115, 115 ' with through hole 114, 114 ' corresponding setting, at vertical weld part 1122, 1122 ' through through hole 114, 114 ' time, vertically weld part 1122, 1122 ' top embeds respectively welding hole 115, in 115 ', and adopt the mode of spot welding can make to assemble front script to set up the circuit board 101 in back encapsulation 103, its upper right corner part can be born touch electrode 109 by back with the upper right corner part of main body rack 102 and be fixedly linked.In like manner, circuit board 101, other back touch electrodes, with the connected mode of back encapsulation 103, identical with the connected mode of the negative touch electrode 112 in above-mentioned its back and back encapsulation 103, repeat no more here.
Further, foregoing circuit plate 101 comprises telegraph circuit and filter circuit, and described telegraph circuit comprises anelectrode, negative electrode and feedback electrode, and described anelectrode, negative electrode and feedback electrode are connected with described filter circuit respectively; Described anelectrode, negative electrode are for importing the potential change signal of its health of measured to described filter circuit; The noise signal of described feedback electrode for coordinating described anelectrode, negative electrode filtering to enter described its front end of filter circuit; And the left feedback touch electrode 109 in above-mentioned back, the right feedback touch electrode 110 in back are connected with described feedback electrode respectively, and the positive touch electrode 111 in above-mentioned back is connected with described anelectrode, negative electrode respectively with the negative touch electrode 112 in back.
Further, circuit board 101 at least comprises one group of anelectrode and negative electrode, and anelectrode and negative electrode described in every corresponding one group, the both sides of positive encapsulation 102 are provided with one group of hollow out 106, described two touch electrodes that head on are respectively head on positive touch electrode 116 and head-on negative touch electrode 117, and are layed on hollow out 106; In the present embodiment, hollow out 106 in positive encapsulation 102 has 3 groups, and head on positive touch electrode 116 and head-on negative touch electrode 117 are preferably rectangle, play like this effect that increases its touch area of gauger, increased experience sense, head on positive touch electrode 116 and head-on negative touch electrode 117 can see through hollow out 106 by thimble structure 107 and be electrically connected with anelectrode described at least one group and negative electrode.
Further, the portable pressure electrocardio measuring device of this utility model embodiment also comprises a buzzer 118 and liquid crystal display screen 122, in back encapsulation 103, be provided with the buzzing groove 119 for the accommodating buzzer 118 of fitting, on circuit board 101, be provided with accordingly the liquid crystal display screen hollow-out parts 120 for the accommodating liquid crystal display screen 122 of fitting, in the portable pressure electrocardio measuring device of molding, buzzer 118 is arranged in buzzing groove 119, and liquid crystal display screen is supported by buzzing groove 119 by liquid crystal display screen hollow-out parts 120, further, in positive encapsulation 102, be provided with the window 121 of perspective liquid crystal display screen, so that observation liquid crystal display screen.
Further, above-mentioned buzzing groove 119 is splitted structure, is appreciated that the gap of this splitted structure is for the circuit of fit accommodating connection buzzer 118 and circuit board 101, to make full use of space, thereby can avoid the cabling of fly line to increase again the integral thickness of portable pressure electrocardio measuring device.
Closer, be the better easy assembling of portable pressure electrocardio measuring device of this utility model embodiment and attractive in appearance, before and after it, be respectively arranged with glass shrouding 123,124, and be layed in respectively the middle part in positive encapsulation 102 and back encapsulation 103.
Further, the portable pressure electrocardio measuring device of this utility model embodiment also comprises: amplifying circuit, be connected in filter circuit, and it is for amplifying the signal of telecommunication of filter circuit output; A/D (Analog/Digital) transducer, is connected in amplifying circuit, and it is for converting the signal of telecommunication after amplifying to digital signal from analogue signal; CPU, be connected in A/D converter, it is for digital signal is processed to computing, and the various action button signal instructions that send for receiving operating portion, and correspondingly process according to the various action button signal instructions that receive, also for memorizer being carried out to writing and reading of information; Memorizer, is connected in CPU, and it can be ROM (Read Only Memory) or RAM (Random AccessMemory), the information such as algorithm routine, database data that it will write and read for storing CPU; Timer, is connected in CPU, and it transmits to CPU in real time for self-clocking and by chronometric data; Communicating circuit, is connected in CPU, and it is for being uploaded to host computer by the ecg wave form of having measured according to dependent instruction.And also comprise display part, exterior storage medium and power supply.Power supply, is connected in the electronic devices and components that need power supply, and it is for powering to portable pressure electrocardio measuring device.In addition, exterior storage medium is connected with CPU after the socket inserting for placing exterior storage medium, and it can be used for the measured ecg wave form of temporary transient storage.Display part, is connected in CPU, and it shows control by CPU to it, and for showing that CPU is to its data of exporting.
Further, the portable pressure electrocardio measuring device of this utility model embodiment also comprises a bar shaped battery 108, the 101 battery hollow-out parts 125 that are provided with for the accommodating bar shaped battery 108 of fitting on circuit board, and bar shaped battery 108 is positioned in battery hollow-out parts 125 along its long limit, one side props up back encapsulation 103, another side with prop up positive encapsulation 102.
Further, because outer electrode comprises multiple touch electrodes, can there is multiple measurement posture in the present embodiment portable pressure electrocardio measuring device therefore.
One, measured can be positioned over respectively and head on positive touch electrode head-on on negative touch electrode with the thumb of left hand and right hand, and props up respectively the right feedback touch electrode in left feedback touch electrode back, back with the forefinger of left hand and right hand, to complete the measurement of ecg wave form.
They are two years old, measured can be positioned over respectively on the positive touch electrode that heads on, head-on negative touch electrode with the thumb of left hand and right hand, but for more stably controlling this portable pressure electrocardio measuring device, the middle finger of available left hand and right hand props up respectively the left feedback touch electrode in back, the right feedback touch electrode in back, and the forefinger of available left hand and right hand of while presses the edge of the positive touch electrode in back, the negative touch electrode in back.
Be appreciated that, hand-held measurement posture is not limited in above-mentioned two kinds of modes, if meeting finger contact leftward, it heads under the positive touch electrode prerequisite of positive touch electrode or back, contacts simultaneously one of the left feedback touch electrode in back or the right feedback touch electrode in back, and the head-on negative touch electrode of the finger contact of the right hand or back are born under touch electrode prerequisite, are contacted one of the left feedback touch electrode in back or the right feedback touch electrode in back simultaneously, can realize the measurement of ecg wave form.
Three, measured also can realize by portable pressure electrocardio measuring device is positioned over to chest the measurement of ecg wave form, particularly, by left to positive back touch electrode and back feedback touch electrode is contacted to chest, left side and negative back touch electrode is contacted to chest, right side with the right feedback touch electrode in back simultaneously, and then realize the measurement of ecg wave form.
What need here to emphasize is, the present embodiment portable pressure electrocardio measuring device is by anelectrode, negative electrode and feedback electrode in telegraph circuit, can realize the ecg wave form metering system that I, II, III are led to measured, owing to requiring measured, it contacts anelectrode and feedback electrode on the other hand simultaneously, another hands contacts negative electrode and feedback electrode simultaneously, therefore the intervention of this feedback electrode makes its part noise signal that can coordinate anelectrode, negative electrode filtering to enter its front end of filter circuit, has improved the certainty of measurement of ecg wave form.
Portable pressure electrocardio measuring device provided by the utility model, encapsulating button by front is located on the encapsulation of back, and circuit board is placed in the technical scheme between positive encapsulation and back encapsulation, make device entirety more be tending towards Miniaturization Design, make not only simple in structure, production and assembly convenience of single unit system, thereby reduced the destructive rate of product in maintenance process.
In description of the present utility model, it will be appreciated that, term " " center ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in this utility model.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a portable pressure electrocardio measuring device, is characterized in that, comprises circuit board, positive encapsulation, back encapsulation, four back touch electrodes and two touch electrodes that head on;
Described positive encapsulation button is located on the encapsulation of described back, and described circuit board is placed between described positive encapsulation and back encapsulation;
Described four back touch electrodes are arranged at respectively four of the bottoms drift angle of described back encapsulation, and are connected with described circuit board;
Described two touch electrodes that head on are arranged at respectively the both sides of described positive encapsulation, and are connected with described circuit board.
2. portable pressure electrocardio measuring device according to claim 1, is characterized in that,
Described back touch electrode comprises holding section, top and vertical weld part, and described back encapsulation correspondence is provided with the through hole for engaging described vertical weld part;
Holding section, described top button is located at the edge of described back encapsulation, and described vertical weld part through described through hole and with described welding circuit board.
3. portable pressure electrocardio measuring device according to claim 2, is characterized in that, described four back touch electrodes comprise the left and right feedback touch electrode in back and the positive touch electrode in back, the negative touch electrode in back;
Described circuit board comprises telegraph circuit and filter circuit, and described telegraph circuit comprises anelectrode, negative electrode and feedback electrode, and described anelectrode, negative electrode and feedback electrode are connected with described filter circuit respectively; Described anelectrode, negative electrode are for importing the potential change signal of its health of measured to described filter circuit; The noise signal of described feedback electrode for coordinating described anelectrode, negative electrode filtering to enter described its front end of filter circuit;
The left and right feedback touch electrode in described back, is arranged at respectively the left and right lower corner at the back of described back encapsulation, and is connected with described feedback electrode respectively;
The positive touch electrode in described back, the negative touch electrode in back, be arranged at respectively the left and right upper corner at the back of described back encapsulation, and be connected with described anelectrode, negative electrode respectively.
4. portable pressure electrocardio measuring device according to claim 3, is characterized in that, described anelectrode and negative electrode are at least one group.
5. portable pressure electrocardio measuring device according to claim 4, is characterized in that,
Described in every corresponding one group of the both sides of described positive encapsulation, anelectrode and negative electrode are provided with one group of hollow out;
Described two touch electrodes that head on are respectively head on positive touch electrode and head-on negative touch electrode, and are layed on described hollow out;
The described positive touch electrode that heads on is electrically connected with anelectrode described at least one group and negative electrode with head-on negative touch electrode.
6. portable pressure electrocardio measuring device according to claim 5, is characterized in that, described two touch electrodes that head on are rectangle.
7. portable pressure electrocardio measuring device according to claim 1, is characterized in that, described positive encapsulation and back encapsulate by the corresponding buckle structure at edge separately and snap together.
8. portable pressure electrocardio measuring device according to claim 1, is characterized in that, also comprises a bar shaped battery, is provided with the battery hollow-out parts for the accommodating described bar shaped battery of fitting on described circuit board;
Described bar shaped battery, is positioned in described battery hollow-out parts along its long limit, and one side props up the encapsulation of described back, and another side props up described positive encapsulation.
9. portable pressure electrocardio measuring device according to claim 1, is characterized in that, also comprises a buzzer and liquid crystal display screen, and the encapsulation of described back is provided with the buzzing groove for the accommodating described buzzer of fitting; On described circuit board, be provided with the liquid crystal display screen hollow-out parts for the accommodating described liquid crystal display screen of fitting;
Described buzzer is arranged in described buzzing groove;
And described liquid crystal display screen is supported by described buzzing groove by described liquid crystal display screen hollow-out parts.
10. portable pressure electrocardio measuring device according to claim 9, is characterized in that, described buzzing groove is splitted structure, and the gap of described splitted structure is for the circuit of the fit described buzzer of accommodating connection and described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342751.7U CN203970385U (en) | 2014-06-24 | 2014-06-24 | Portable pressure electrocardio measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342751.7U CN203970385U (en) | 2014-06-24 | 2014-06-24 | Portable pressure electrocardio measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN203970385U true CN203970385U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420342751.7U Expired - Lifetime CN203970385U (en) | 2014-06-24 | 2014-06-24 | Portable pressure electrocardio measuring device |
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| Country | Link |
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| CN (1) | CN203970385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068847A (en) * | 2014-06-24 | 2014-10-01 | 北京丰拓生物技术有限公司 | Portable electrocardio measuring device |
-
2014
- 2014-06-24 CN CN201420342751.7U patent/CN203970385U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068847A (en) * | 2014-06-24 | 2014-10-01 | 北京丰拓生物技术有限公司 | Portable electrocardio measuring device |
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