CN2610845Y - Digital breathing displacement sensor - Google Patents
Digital breathing displacement sensor Download PDFInfo
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- CN2610845Y CN2610845Y CN 03225260 CN03225260U CN2610845Y CN 2610845 Y CN2610845 Y CN 2610845Y CN 03225260 CN03225260 CN 03225260 CN 03225260 U CN03225260 U CN 03225260U CN 2610845 Y CN2610845 Y CN 2610845Y
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a medical apparatus technological art, in particular to a digital breathing dislocation sensor used for clinical breath movement detecting, wherein a detected electrode upper and a lower end respectively detect a capacitor external electrode, soft springy materials are equipped between a detected internal electrode and the detected capacitor external electrode, a detected circuit is equipped on a circuit board, the outer of the capacitor electrode is loosely equipped with a soft protection sleeve, the detecting circuit comprises a power source input unit, a power source processing unit, a dislocation and electric signal shifting unit, an output buffering unit and a signal output unit which are orderly connected, wherein the output end on the power source processing end is connected with the detected capacitor external electrode, and is connected with the dislocation and electric signal shifting unit at the same time. The utility model can directly output frequency quantity digital signals, the detecting sensibility is high, the anti interference ability is strong, which is convenient for expanding grafting, the work is reliable, and the usage is convenient and comfortable.
Description
Technical field:
This utility model relates to technical field of medical instruments, refers in particular to a kind of digital breathing displacement transducer that clinical respiratory movement detects that is used for.
Background technology:
In clinical diagnose, often use device for detecting respiratory, device for detecting respiratory commonly used at present is to utilize the thoracic impedance scanning method of electric pole type to detect respiratory movement, during use electrode directly is attached on detected person's the skin, there is small electric current to flow through detected person's health during this device for detecting respiratory operate as normal, but when it breaks down, then makes the detected person that the danger of electric shock is arranged.In addition, the signal processing more complicated of this device for detecting respiratory, and when using for a long time, the standing part of electrode easily and the skin of user be sticked together, make conventional respiration detection monitoring seem very inconvenient, be unfavorable for popularizing of conventional Respiratory Care.Cause the patient etc. of some neonates, public ward when respiratory disorder takes place, can not in time to find easily, thereby produce serious consequence.
Summary of the invention:
The purpose of this utility model provides a kind of easy to use and sensitivity and the high digital respiration pickup of reliability with regard to being at the weak point that has device for detecting respiratory now.
For achieving the above object; this utility model comprises: detect electrode in the electric capacity; lead; also include two and be separately positioned on the detection electric capacity external electrode that detects electrode upper and lower side in the electric capacity; detect the interior electrode of electric capacity and detect between the electric capacity external electrode and be provided with soft elastomeric material; between soft elastic material, be provided with and detect electrode in the electric capacity; detect the testing circuit that electric capacity external electrode and lead link to each other; this testing circuit is arranged on the circuit board; then pine is with the soft protective sleeve of one deck in the outside of detecting the electric capacity external electrode; described testing circuit is by the power input unit that is linked in sequence; the power supply processing unit; displacement and electrical signal conversion unit; output buffer cell and signal output unit constitute; wherein; outfan in the power supply processing unit links to each other with detection electric capacity external electrode, also links to each other with the electrical signal conversion unit with displacement simultaneously.
As the further improvement of the technical solution of the utility model, also be connected with moist detection cell circuit between the power supply processing unit of described testing circuit and the signal output unit.
Another kind as the technical solution of the utility model improves, and what described signal output unit was exported is the frequency of digital quantity, and capacity of resisting disturbance is strong, and is very easy to be connected processing with modern electronic circuit.
Another kind as the technical solution of the utility model improves, and described power input unit and signal output unit concentrate on the digital interface (USB).
When the technical solution of the utility model was further improved again, described capacitance electrode can be made by softish metal material.
Owing to adopted technique scheme, this utility model does not need electrode directly is attached on detected person's the skin when using, and has avoided electric shock and electrode and the skin situation of adhesion mutually; In addition, only need during use this utility model is placed on the detected person with the thoracic cavity over against the back, as mat pad (for infant) under body, perhaps be fixed on detected person's back or breast abdominal part (for the adult) as medicated bra, very easy to use, and outer field protective sleeve of this utility model and the elastomeric material that is arranged between the capacitance electrode are all soft material, then make the detected person feel as snug as a bug in a rug; At last, this utility model be displacement between the capacitance electrode that causes when breathing variation and with its signal of telecommunication that changes numerical frequency into export detect respirometric, not only detection sensitivity height, capacity of resisting disturbance are strong, output signal is easy to handle, and owing to be integrated design, sensing element and signal processing comprehensively arrive together, and being added with moist the detection, working stability is reliable.
Description of drawings:
Below in conjunction with accompanying drawing this utility model is described further:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the block diagram of this utility model testing circuit
Accompanying drawing 3 is the schematic diagram of this utility model testing circuit
The specific embodiment:
The following stated only is a kind of better embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
See that accompanying drawing 1 is to shown in the accompanying drawing 3; this utility model comprises: detect electrode 10 in the electric capacity; lead 20; also include two and be separately positioned on the detection electric capacity external electrode 30 that detects electrode 10 upper and lower sides in the electric capacity; in detecting electric capacity external electrode 30 and detection electric capacity, be provided with soft elastomeric material 40 between the electrode 10; between soft elastic material 40, be provided with and detect electrode 10 in the electric capacity; detect the testing circuit that electric capacity external electrode 30 and lead 20 link to each other; this testing circuit is arranged on the circuit board 50; then pine is with the soft protective sleeve of one deck 60 in the outside of detecting electric capacity external electrode 30; described testing circuit is by the power input unit 51 that is linked in sequence; power supply processing unit 52; displacement and electrical signal conversion unit 53; output buffer cell 54 and signal output unit 55 constitute; wherein; in the power supply processing unit outfan with detect the electric capacity external electrode and link to each other, also link to each other with the electrical signal conversion unit simultaneously with displacement.Δ C capture unit in the circuit block diagram promptly is made of electrode 10 in this detection electric capacity and detection electric capacity external electrode 30, and the electronic component in the circuit can seal with marine glue.
In order to prevent that pick off from making moist for a long time, cause phenomenons such as short circuit, between the power supply processing unit 52 of described testing circuit and signal output unit 55, also be connected with moist detection cell circuit 56.
Be connected with computer for convenient, thereby operational analysis software is handled detection signal, described power input unit 51 and signal output unit 55 can adopt a digital interface (USB) jointly.
Feel more comfortable for this utility model is used, described capacitance electrode 30 is made by softish metal material.
Brief description operation principle of the present utility model once: the electric energy of power supply is from the 3rd foot (VCC) of digital interface USB is input to manostat 521 the power supply processing section 52, for obtaining preferable voltage regulation result, this manostat 521 can adopt low-dropout regulator, through the 5th foot output of the signal of telecommunication after low-dropout regulator 521 voltage stabilizings, be the entire circuit power supply from low-dropout regulator 521.Operational amplifier 522 and peripheral peripheral cell thereof produce fixed midpoint potential, this electric potential signal is connected to and detects the screen potential of electric capacity external electrode 30 as whole sensor, simultaneously this current potential is again as the reference voltage of displacement and electrical signal conversion unit 53, electrode 10 constitutes respiration detection electric capacity with detection electric capacity external electrode 30 in the electric capacity by detecting, this electric capacity and the 531 frequency modulation multivibrators that constitute are formed displacement and electrical signal conversion unit 53, be modulated on the output signal with warbled method by the variation of displacement and telecommunications converting unit 53 capacitance of respiration detection electric capacity, when the electrode relative distance that detects electric capacity changes with detected person's breathing, the capacitance that detects electric capacity and then changes, and [physical equation is expressed as C=∑ * (S/d), and capacitor C and electrode distance d formation inverse proportion function], again by displacement and electrical signal conversion unit the variable quantity [F=1/ (K*C)] that the changes in capacitance amount is changed into frequency that discharges and recharges to electric capacity, outfan at operational amplifier 531 obtains the modulated voltage signal of frequency (Δ F), the modulated voltage signal of this frequency is exported by the outfan of operational amplifier 531, and enter operational amplifier 541 inputs in the output buffer 54, because the existence of this output buffer 54, the interference of its external signal output unit (signal of telecommunication of coupling on the transmission line) is isolated the displacement of front end and the influence of electrical signal conversion unit 53, reduced the equiva lent impedance of outlet line simultaneously, and the load that has alleviated displacement and electrical signal conversion unit 53 greatly, make this utility model that very high stability and capacity of resisting disturbance be arranged, at last, enter into the input (being the 1st foot of digital interface USB) of signal output unit 55 by the signal of telecommunication of respiratory movement generation, export the DIGITAL FREQUENCY signals by signal output unit 55, thereby monitor detected person's respiratory movement easily.
In addition, moist detecting unit is made of humistor and voltage comparator.Whether the method classified sensor by the thresholding comparative voltage makes moist, is urinated unusual behaviours in service such as wet, the outfan of the operational amplifier 561 in the circuit 56 is connected to another input (being the 2nd foot of digital interface USB) of signal output unit 55, when pick off makes moist, operational amplifier 561 can pass in the corresponding alarm device by the digital signal of signal output unit 55 outputs, makes it remind user to note.
Claims (4)
1. digital breathing displacement transducer; comprise: detect electrode (10) in the electric capacity; lead (20); it is characterized in that: also include two and be separately positioned on the detection electric capacity external electrode (30) that detects electrode (10) upper and lower side in the electric capacity; in detecting electric capacity external electrode (30) and detection electric capacity, be provided with soft elastomeric material (40) between the electrode (10); between soft elastic material (40), be provided with and detect electrode in the electric capacity (10); detect the testing circuit that electric capacity external electrode (30) and lead (20) link to each other; this testing circuit is arranged on the circuit board (50); then pine is with the soft protective sleeve of one deck (60) in the outside of detecting electric capacity external electrode (30); described testing circuit is by the power input unit that is linked in sequence (51); power supply processing unit (52); displacement and electrical signal conversion unit (53); output buffer cell (54) and signal output unit (55) constitute; wherein; the outfan of (522) in the power supply processing unit (52) links to each other with detection electric capacity external electrode (30), also links to each other with electrical signal conversion unit (53) with displacement simultaneously.
2. digital breathing displacement transducer according to claim 1 is characterized in that: also be connected with moist detection cell circuit (56) between the power supply processing unit (52) of described testing circuit and the signal output unit (55).
3. digital breathing displacement transducer according to claim 2 is characterized in that: described power input unit (51) and signal output unit (55) concentrate on the digital interface (USB).
4. according to any one described digital breathing displacement transducer of claim 1 to 3, it is characterized in that: described detection electric capacity external electrode (30) is made by softish metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225260 CN2610845Y (en) | 2003-04-18 | 2003-04-18 | Digital breathing displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225260 CN2610845Y (en) | 2003-04-18 | 2003-04-18 | Digital breathing displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610845Y true CN2610845Y (en) | 2004-04-14 |
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ID=34163645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03225260 Expired - Fee Related CN2610845Y (en) | 2003-04-18 | 2003-04-18 | Digital breathing displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610845Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822542A (en) * | 2010-04-28 | 2010-09-08 | 上海诺诚电气有限公司 | Thoracic abdominal breathing detector and method for detecting breathing |
| CN102458239A (en) * | 2009-06-05 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Capacitive sensing system |
| CN101791221B (en) * | 2009-12-31 | 2015-06-17 | 马宇尘 | Breath detector based on capacitance variation and realizing method thereof |
| CN104720810A (en) * | 2014-12-16 | 2015-06-24 | 张紫豪 | Capacitive type respiratory wave detecting device |
| CN106983945A (en) * | 2017-05-09 | 2017-07-28 | 京东方科技集团股份有限公司 | Sleeping and/or Rouser and method |
-
2003
- 2003-04-18 CN CN 03225260 patent/CN2610845Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458239A (en) * | 2009-06-05 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Capacitive sensing system |
| CN102458239B (en) * | 2009-06-05 | 2015-03-25 | 皇家飞利浦电子股份有限公司 | Capacitive sensing system |
| CN101791221B (en) * | 2009-12-31 | 2015-06-17 | 马宇尘 | Breath detector based on capacitance variation and realizing method thereof |
| CN101822542A (en) * | 2010-04-28 | 2010-09-08 | 上海诺诚电气有限公司 | Thoracic abdominal breathing detector and method for detecting breathing |
| CN104720810A (en) * | 2014-12-16 | 2015-06-24 | 张紫豪 | Capacitive type respiratory wave detecting device |
| CN106983945A (en) * | 2017-05-09 | 2017-07-28 | 京东方科技集团股份有限公司 | Sleeping and/or Rouser and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |