CN203417200U - Detector of electric physiological signals in human bodies - Google Patents
Detector of electric physiological signals in human bodies Download PDFInfo
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- CN203417200U CN203417200U CN201220742193.4U CN201220742193U CN203417200U CN 203417200 U CN203417200 U CN 203417200U CN 201220742193 U CN201220742193 U CN 201220742193U CN 203417200 U CN203417200 U CN 203417200U
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- human body
- electrode slice
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Abstract
The utility model discloses a detector of electric physiological signals in human bodies, which comprises a main power supply module and a detection device of the electric physiological signals in the human bodies, wherein the detection device comprises at least one pair of electrode plates attached on the human body, and the detector of the electric physiological signals in the human bodies also comprises a detection circuit for detection of a conduction state when the pair of electrode plates is attached to and contacted with the human body and a switching circuit which is respectively connected to the main power supply module, the detection device of the electric physiological signals in the human bodies and the detection circuit and can switch operation states of the detection device of the electric physiological signals in the human bodies and the detection circuit. According to the utility model, influences of bad contact and bad electric conduction on data detection can be timely detected and repaired by detecting the conduction state when electrode plates are attached to and contacted with the human body surface and the conduction state between conducting cables connected to instruments and the electrode plates. Therefore good and effective connection between the instrument cables and the human body is ensured and a detected resistance value of the human body is true, accurate and reliable.
Description
Technical field
This utility model relates to medical domain, relates in particular to a kind of device for detection of human body resistance value for medical domain.
Background technology
At current medical health field, need to use human body electrophysiologicalsignal signal detection instrument to detect in real time the electricity physiological signal of human body, when detecting, need to adopt electrode slice to be affixed on body surface.But, the laminating tightness degree of electrode slice and body surface will directly affect verity and the accuracy of detector detection numerical value, yet, existing human body electrophysiologicalsignal signal detection instrument does not have special device the laminating tightness degree of electrode slice and body surface is detected and assessed, can only artificially electrode slice be adjacent to body surface as much as possible by detecting operator, anthropic factor impact is very large, and the verity, accuracy and the reliability that have caused existing human body electrophysiologicalsignal signal detection instrument to detect the data obtained all exist certain uncertainty.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of human body electrophysiologicalsignal signal detection instrument, it can detect to fast and reliable the laminating tightness degree of electrode slice and body surface, to guarantee verity and the accuracy of the data obtained when detecting electricity physiological signal.
In order to solve the problems of the technologies described above, the utility model proposes a kind of human body electrophysiologicalsignal signal detection instrument, comprise main power source module, human body electrophysiologicalsignal signal detection device and at least one pair of is for being attached to the electrode slice on human body, described human body electrophysiologicalsignal signal detection instrument also comprises: the testing circuit of conduction state electrode slice being contacted with human body laminating for detection of this, and the equal correspondence of every a pair of electrode slice is provided with an alignment detection circuit; And respectively with main power source module, human body electrophysiologicalsignal signal detection device and testing circuit is connected and commutation circuit that the duty of human body electrophysiologicalsignal signal detection device and testing circuit is switched.
Further, described testing circuit comprises integrated operational amplifier and detects power supply, the positive termination of power input of described integrated operational amplifier detects power supply, power input negativing ending grounding, the inverting input of described integrated operational amplifier is connected and is detected power supply and pass through pull down resistor ground connection by pull-up resistor, the in-phase input end of integrated operational amplifier is by the first resistance eutral grounding, and described in-phase input end is also connected to the first electrode slice in described pair of electrodes sheet, in described pair of electrodes sheet, the second electrode slice is connected to detection power supply, the outfan of integrated operational amplifier and the second resistance, ground connection after the first light emitting diode series connection, and the outfan of integrated operational amplifier is also connected to inverting input by the 3rd resistance.
Further, described commutation circuit comprises the first relay, the first key switch and the second key switch, and the first end of described the first key switch and the second key switch is all connected to main power source module; Described the first relay has ten pins, the concrete wiring of each pin is as follows: the first pin connects the second end of the first key switch, the second pin and the 9th pin are connected respectively two detection lines of human body electrophysiologicalsignal signal detection device, three-prong and the 8th pin are connected respectively the first electrode slice and second electrode slice of described pair of electrodes sheet, the 4th pin connects detection power supply, the 5th pin and the equal ground connection of the 6th pin, the 7th pin connects the in-phase input end of integrated operational amplifier, and the tenth pin connects the second end of the second key switch.
Further, described commutation circuit also comprises the second relay, the second relay also has ten pins, each pin wiring of the second relay is as follows: the first pin connects the second end of the first key switch, the second pin is vacant, three-prong and the 8th pin are all connected to main power source module, the 4th pin is connected to detection power supply, the 5th pin and the equal ground connection of the 6th pin, the 7th pin is connected with the 4th pin and is connected in series ground connection after the 4th resistance and the second light emitting diode, ground connection after the 9th pin serial connection the 5th resistance and the 3rd light emitting diode, the tenth pin connects the second end of the second key switch.
Further, described detection power supply includes the chip with voltage output end foot.
Further, described main power source module comprises main power source and is connected with main power source for controlling the on and off switch of main power source break-make.
Further, described main power source module also comprise by the series connection of the 6th resistance and the 4th light emitting diode, formed after be connected in one end away from main power source of on and off switch and the power indicating circuit between earth terminal.
Further, described human body electrophysiologicalsignal signal detection instrument has multipair electrode slice, each is all integrated into an electrode slice grafting row to the connecting line of electrode slice, described electrode slice is pegged graft and is provided with on row and each electrode slice corresponding connected terminals one by one, corresponding being connected of each terminals that the three-prong of the first relay of each testing circuit is pegged graft on row with electrode slice respectively with the 8th pin.
Further, described human body electrophysiologicalsignal signal detection instrument has the detection line that quantity is identical with the quantity of electrode slice, one end of each detection line is integrated into a detection line grafting row, described detection line is pegged graft and is provided with on row and each detection line corresponding connected terminals one by one, corresponding being connected of each terminals that the second pin of the first relay of each testing circuit is pegged graft on row with detection line respectively with the 9th pin.
The beneficial effects of the utility model are: by detecting being pasted on the conduction state that the electrode slice of body surface contacts with human body, can detect in time and repair the Data Detection impact that loose contact brings, thereby guaranteed that detector is effectively connected with the good of human body, the human body electricity physiological signal that detector is obtained is true, accurate and reliable.
Accompanying drawing explanation
Fig. 1 is power pack in this utility model and the circuit diagram of notification portion.
Fig. 2 is the circuit diagram of commutation circuit in this utility model part and test section.
Fig. 3 is the circuit diagram of the human body junction point interface in this utility model.
Fig. 4 is the circuit diagram of the instrument junction point interface in this utility model.
Fig. 5 is the schematic diagram of theory diagram of the present utility model.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can mutually combine, and below in conjunction with the drawings and specific embodiments, this utility model are described in further detail.
Shown in Fig. 5, a kind of human body electrophysiologicalsignal signal detection instrument, comprise main power source module, human body electrophysiologicalsignal signal detection device and at least one pair of is for being attached to the electrode slice on human body, described human body electrophysiologicalsignal signal detection instrument also comprises: the testing circuit of conduction state electrode slice being contacted with human body laminating for detection of this, and the equal correspondence of every a pair of electrode slice is provided with an alignment detection circuit; And respectively with main power source module, human body electrophysiologicalsignal signal detection device and testing circuit is connected and commutation circuit that the duty of human body electrophysiologicalsignal signal detection device and testing circuit is switched.
An embodiment is, described main power source partly comprises power interface JP1,5V DC source, also have main power source module described on and off switch P1. also to comprise by the 6th resistance R 6 and the 4th light emitting diode D4 series connection, formed after be connected in one end away from main power source of on and off switch and the power indicating circuit between earth terminal.When switch P 1 is closed, light emitting diode D4 is bright, display power supply work.
An embodiment is, shown in Fig. 2, described testing circuit comprises integrated operational amplifier U3A and detects power supply U1, U2, the power input anode of described integrated operational amplifier is that pin 8 connects detection power supply, power input negative terminal is pin 4 ground connection, the inverting input of described integrated operational amplifier is that pin two passes through pull-up resistor R4 connection detection power supply VCC1 and passes through pull down resistor R8 ground connection GND1, the in-phase input end of integrated operational amplifier U3A is that pin 3 is by the first resistance R 1 ground connection, and described in-phase input end pin 3 is also connected to the first electrode slice in described pair of electrodes sheet, in described pair of electrodes sheet, the second electrode slice is connected to detection power supply, the outfan of integrated operational amplifier is pin one and the second resistance R 2, ground connection GND1 after the first light emitting diode D1 series connection, and the outfan of integrated operational amplifier is that also by the 3rd resistance R 3, to be connected to inverting input be pin two to pin one.Light on and off situation by light emitting diode D1 shows testing result.
Described voltage comparator is realized the operation principle detecting: when electrode slice and human body loose contact, detect the flow through resistance of human body of power supply and increase the in-phase input end lower voltage of integrated operational amplifier, when its magnitude of voltage is during lower than reference voltage, integrated operational amplifier output LOW voltage, the light emitting diode being attached thereto goes out; On the contrary, when electrode slice contacts with human body when good, detect the flow through resistance of human body of power supply and reduce, the in-phase input end voltage of integrated operational amplifier raises, when its magnitude of voltage is during higher than reference voltage, integrated operational amplifier output HIGH voltage, the light emitting diode being attached thereto is bright.
An embodiment is, shown in seeing figures.1.and.2, described commutation circuit comprises the first relay K 1, the first key switch S1 and the second key switch S2, and the first end of described the first key switch S1 and the second key switch S2 is all connected to main power source module, described the first relay K 1 has ten pins, the concrete wiring of each pin is as follows: the first pin connects the second end of the first key switch S1, the second pin and the 9th pin are connected respectively two detection line J-H1 of human body electrophysiologicalsignal signal detection device, J-H2, three-prong and the 8th pin are connected respectively the first electrode slice H1 and the second electrode slice H2 of described pair of electrodes sheet, the 4th pin connects detection power supply VCC1, the 5th pin and the equal ground connection GND1 of the 6th pin, the 7th pin connects the in-phase input end of integrated operational amplifier, the tenth pin connects the second end of the second key switch S2.
Described commutation circuit also comprises the second relay K 2, the second relay K 2 also has ten pins, each pin wiring of the second relay is as follows: the first pin connects the second end of the first key switch S1, the second pin is vacant, three-prong and the 8th pin are all connected to main power source module, the 4th pin is connected to the power circuit that detects power supply for generating, the 5th pin and the equal ground connection of the 6th pin, the 7th pin is connected with the 4th pin and is connected in series ground connection after the 4th resistance R 4 and the second light emitting diode D2, ground connection after the 9th pin serial connection the 5th resistance R 5 and the 3rd light emitting diode D3, the tenth pin connects the second end of the second key switch.Described relay K 2 and light emitting diode D2, D3 form a duty Tip element, when key switch S1 is closed, 3,4 foot conductings in relay K 2,7,8 foot conductings, Light-Emitting Diode D2 lights, prompting enters into bulk resistor testing circuit duty, otherwise, when key switch S1 is closed, 2,3 foot conductings in relay K 1,8,9 foot conductings, Light-Emitting Diode D3 lights, and prompting enters into human body electrophysiologicalsignal signal detection instrument part.
Meanwhile, the detection power supply in described testing circuit, has chip U1 and the U2 of voltage output end.This part is connected with the second relay K 2, and the 4th pin of the second relay K 2 is connected in series and is connected with the input pin one of chip U1 and U2 with the 7th pin.When key switch S1 is closed, 3,4 foot conductings in relay K 2,7,8 foot conductings, Light-Emitting Diode D2 lights, and prompting enters into bulk resistor testing circuit duty, simultaneously, DC source U1 and U2 are partly communicated with main power source, for checkout gear provides supply voltage input.
That summarizes says, when on and off switch P1 is closed, when key switch S1 is also closed, commutation circuit device is switched to checkout gear work, otherwise when key switch S2 is closed, commutation circuit device is switched to human body electrophysiologicalsignal signal detection instrument some work.
Two cathode power supplies of the relay K 2 of described commutation circuit part are connected with power pack is anodal respectively; Two data input pins of this relay K 2 are connected with the interface of human body junction point; The outfan of described relay K 2 is that human body electrophysiologicalsignal signal detection instrument importation is connected with checkout gear and instrument junction point interface respectively.
An embodiment is, shown in Fig. 3, described human body electrophysiologicalsignal signal detection instrument has multipair electrode slice, each is all integrated into an electrode slice grafting row JP2 to the connecting line of electrode slice, described electrode slice is pegged graft and is provided with on row and each electrode slice corresponding connected terminals H1, H2, H3, H4 and L1, L2, L3, L4 one by one, corresponding being connected of each terminals that the three-prong of the first relay K 1 of each testing circuit is pegged graft on row with electrode slice respectively with the 8th pin.
Shown in Fig. 4, described human body electrophysiologicalsignal signal detection instrument has the detection line that quantity is identical with the quantity of electrode slice, one end of each detection line is integrated into a detection line grafting row JP3, described detection line is pegged graft and is provided with on row and each detection line corresponding connected terminals J-H1, J-H2, J-H3, J-H4 and J-L1, J-L2, J-L3, J-L4 one by one, corresponding being connected of each terminals that the second pin of the first relay K 1 of each testing circuit is pegged graft on row with detection line respectively with the 9th pin.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalency range thereof.
Claims (9)
1. a human body electrophysiologicalsignal signal detection instrument, comprises that main power source module, human body electrophysiologicalsignal signal detection device and at least one pair of, for being attached to the electrode slice on human body, is characterized in that, described human body electrophysiologicalsignal signal detection instrument also comprises:
The testing circuit of conduction state electrode slice being contacted with human body laminating for detection of this, the equal correspondence of every a pair of electrode slice is provided with an alignment detection circuit; And
Respectively with main power source module, human body electrophysiologicalsignal signal detection device and testing circuit is connected and commutation circuit that the duty of human body electrophysiologicalsignal signal detection device and testing circuit is switched.
2. human body electrophysiologicalsignal signal detection instrument as claimed in claim 1, it is characterized in that, described testing circuit comprises integrated operational amplifier and detects power supply, the positive termination of power input of described integrated operational amplifier detects power supply, power input negativing ending grounding, the inverting input of described integrated operational amplifier is connected and is detected power supply and pass through pull down resistor ground connection by pull-up resistor, the in-phase input end of integrated operational amplifier is by the first resistance eutral grounding, and described in-phase input end is also connected to the first electrode slice in described pair of electrodes sheet, in described pair of electrodes sheet, the second electrode slice is connected to detection power supply, the outfan of integrated operational amplifier and the second resistance, ground connection after the first light emitting diode series connection, and the outfan of integrated operational amplifier is also connected to inverting input by the 3rd resistance.
3. human body electrophysiologicalsignal signal detection instrument as claimed in claim 2, it is characterized in that, described commutation circuit comprises the first relay, the first key switch and the second key switch, and the first end of described the first key switch and the second key switch is all connected to main power source module; Described the first relay has ten pins, the concrete wiring of each pin is as follows: the first pin connects the second end of the first key switch, the second pin and the 9th pin are connected respectively two detection lines of human body electrophysiologicalsignal signal detection device, three-prong and the 8th pin are connected respectively the first electrode slice and second electrode slice of described pair of electrodes sheet, the 4th pin connects detection power supply, the 5th pin and the equal ground connection of the 6th pin, the 7th pin connects the in-phase input end of integrated operational amplifier, and the tenth pin connects the second end of the second key switch.
4. human body electrophysiologicalsignal signal detection instrument as claimed in claim 3, it is characterized in that, described commutation circuit also comprises the second relay, the second relay also has ten pins, each pin wiring of the second relay is as follows: the first pin connects the second end of the first key switch, the second pin is vacant, three-prong and the 8th pin are all connected to main power source module, the 4th pin is connected to detection power supply, the 5th pin and the equal ground connection of the 6th pin, the 7th pin is connected with the 4th pin and is connected in series ground connection after the 4th resistance and the second light emitting diode, ground connection after the 9th pin serial connection the 5th resistance and the 3rd light emitting diode, the tenth pin connects the second end of the second key switch.
5. human body electrophysiologicalsignal signal detection instrument as claimed in claim 4, is characterized in that, described detection power supply includes the chip with voltage output end foot.
6. human body electrophysiologicalsignal signal detection instrument as claimed in claim 4, is characterized in that, described main power source module comprises main power source and is connected with main power source for controlling the on and off switch of main power source break-make.
7. human body electrophysiologicalsignal signal detection instrument as claimed in claim 6, it is characterized in that, described main power source module also comprise by the series connection of the 6th resistance and the 4th light emitting diode, formed after be connected in one end away from main power source of on and off switch and the power indicating circuit between earth terminal.
8. human body electrophysiologicalsignal signal detection instrument as claimed in claim 1, it is characterized in that, described human body electrophysiologicalsignal signal detection instrument has multipair electrode slice, each is all integrated into an electrode slice grafting row to the connecting line of electrode slice, described electrode slice is pegged graft and is provided with on row and each electrode slice corresponding connected terminals one by one, corresponding being connected of each terminals that the three-prong of the first relay of each testing circuit is pegged graft on row with electrode slice respectively with the 8th pin.
9. human body electrophysiologicalsignal signal detection instrument as claimed in claim 8, it is characterized in that, described human body electrophysiologicalsignal signal detection instrument has the detection line that quantity is identical with the quantity of electrode slice, one end of each detection line is integrated into a detection line grafting row, described detection line is pegged graft and is provided with on row and each detection line corresponding connected terminals one by one, corresponding being connected of each terminals that the second pin of the first relay of each testing circuit is pegged graft on row with detection line respectively with the 9th pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220742193.4U CN203417200U (en) | 2012-12-28 | 2012-12-28 | Detector of electric physiological signals in human bodies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220742193.4U CN203417200U (en) | 2012-12-28 | 2012-12-28 | Detector of electric physiological signals in human bodies |
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| CN203417200U true CN203417200U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220742193.4U Expired - Lifetime CN203417200U (en) | 2012-12-28 | 2012-12-28 | Detector of electric physiological signals in human bodies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040458A (en) * | 2012-12-28 | 2013-04-17 | 深圳市千帆电子有限公司 | Human body electrophysiological signal detection instrument |
| CN110151160A (en) * | 2019-05-20 | 2019-08-23 | 深圳市问库信息技术有限公司 | A kind of electronic channel detecting device and its detection method |
-
2012
- 2012-12-28 CN CN201220742193.4U patent/CN203417200U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040458A (en) * | 2012-12-28 | 2013-04-17 | 深圳市千帆电子有限公司 | Human body electrophysiological signal detection instrument |
| CN110151160A (en) * | 2019-05-20 | 2019-08-23 | 深圳市问库信息技术有限公司 | A kind of electronic channel detecting device and its detection method |
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Granted publication date: 20140205 |