CN103705249A - Pulse and blood oxygen probe with electromagnetic shielding function - Google Patents
Pulse and blood oxygen probe with electromagnetic shielding function Download PDFInfo
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- CN103705249A CN103705249A CN201310755669.7A CN201310755669A CN103705249A CN 103705249 A CN103705249 A CN 103705249A CN 201310755669 A CN201310755669 A CN 201310755669A CN 103705249 A CN103705249 A CN 103705249A
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- electromagnetic shielding
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- oxygen probe
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Abstract
The invention relates to a pulse and blood oxygen probe with an electromagnetic shielding function. The pulse and blood oxygen probe with the electromagnetic shielding function comprises an upper shell, a lower shell, a spring clamping mechanism, a light source emitting device, a photovoltaic conversion device and a sensor cable. The pulse and blood oxygen probe with the electromagnetic shielding function is characterized in that first electromagnetic shielding glass is arranged on the lower portion of the light source emitting device, second electromagnetic shielding glass is arranged on the upper portion of the photovoltaic conversion device, and the first electromagnetic shielding glass and the second electromagnetic shielding glass are in coupling connection through lead wires and are led out through the sensor cable to be connected with the ground. The pulse and blood oxygen probe with the electromagnetic shielding function is reasonable in design, the first electromagnetic shielding glass and the second electromagnetic shielding glass are arranged on the lower portion of the light source emitting device and the upper portion of the photovoltaic conversion device respectively, are in the coupling connection through the lead wires and are led out through the sensor cable to be connected with the ground, electromagnetic interference and interference of high-frequency surgical instruments can be shielded effectively, and the function of electromagnetic shielding can be performed effectively. Through perfect metal shielding bodies and good ground connection, influences on detection signals by external electromagnetic fields are reduced, the signal to noise ratio is improved, and measurement accuracy is ensured.
Description
Technical field
The invention belongs to pulse blood oxygen detection probe technical field, especially a kind of pulse blood oxygen probe with electro-magnetic screen function.
Background technology
Pulse and blood oxygen saturation are important human body physiological parameters.The measurement of blood oxygen saturation can coordinate and realize with pulse oximeter and pulse blood oxygen probe: the part that the light that pulse blood oxygen probe sends penetrates human body has the tissue of blood perfusion, then by pulse oximeter, according to the absorbtivity of light, calculates oximetry value.Pulse blood oxygen probe is comprised of two transmitting tubes (HONGGUANG and infrared light) and light sensitive diode conventionally, by measurement module, drives two transmitting tubes to produce respectively the light of two kinds of wavelength, through tissue (the normally good acra of light transmission), is delivered to receiving tube; Receiving tube changes electrical signal transfer into optical signal and returns measurement module, after measurement module is processed, obtains real-time blood oxygen saturation numerical value.Pulse oximeter can become separately machine, also can insert other equipment, as multiparameter bedside monitor, anesthesia monitor etc.Pulse blood oxygen probe is the vitals that noinvasive method detects blood oxygen saturation, its internal structure is comprised of above-mentioned three semiconductor device substantially, product design is to refer to folder or fingerstall or disposable stickup encapsulation, two transmitting tube majorities are reverse parallel connection, with light sensitive diode over against, probe the other end with joint, be connected with pulse oximeter.
Widely used pulse blood oxygen probe is conventionally by upper and lower cabinet, flexible glue pad, spring clamp mechanism, luminous and receive structure and testing circuit forms in the market, by sensor cable, connect exterior display device, wherein, upper and lower cabinet connects by spring clamp mechanism, press one end, the other end can open.During use, the upper and lower shell of clip is opened, finger is placed on flexible glue pad, and spring structure can be fixed on flexible glue pad by finger, by photoelectric detection system, obtains blood oxygen levels, finally by sensor cable, result is presented on monitor or display screen.Sensor cable adopts outer shielding conventionally, and photoelectricity reception holding wire also often adopts individually shielded to reduce electromagnetic interference, improves signal to noise ratio.
Yet, in actual applications, due to the electromagnetic interference and the measured body electrical network coupled interference that are subject in surrounding, cause introducing in detection signal much noise, signal to noise ratio is significantly declined, particularly be applied to perform the operation in monitoring process, also will be subject to the interference of the high frequency electro surgical units such as high frequency electric knife, therefore need to carry out electromagnetic shielding.Electromagnetic shielding is one of major measure of electromagnetic compatibility technology, by metal shield materials, electromagnetic interference source is closed, and makes its external electromagnetic field intensity lower than a kind of measure of permissible value; Or by metal shield materials, electromagnetic susceptibility circuit is closed, make its internal electromagnetic field intensity lower than a kind of measure of permissible value.Existing blood oxygen transducer structure, just shields from cable, the object of the shield electromagnetic interference that is in fact difficult to reach desirable.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of pulse blood oxygen probe with electro-magnetic screen function is provided, solve existing pulse blood oxygen probe and in testing process, be subject to the problem that environment noise, electrical network interference and high frequency electro surgical unit disturb.
The present invention solves existing technical problem and takes following technical scheme to realize:
A kind of pulse blood oxygen probe with electro-magnetic screen function, comprises upper shell, lower house, spring clamp mechanism, light source discharger, photoelectric conversion device and sensor wire, upper shell and lower house are oppositely arranged and the spring clamp mechanism by one end links together, light source discharger and photoelectric conversion device are arranged on respectively on the relative position of upper shell and lower house, the holding wire that light source discharger and photoelectric conversion device are used is connected with external equipment by sensor wire, in the bottom of light source discharger, be provided with the first electromagnetic shielding glass, on the top of photoelectric conversion device, be provided with the second electromagnetic shielding glass, described the first electromagnetic shielding glass and the second electromagnetic shielding glass are of coupled connections by wire and draw ground connection by sensor wire.
And, on described light source discharger, the first electromagnetic shielding glass upper shell surface around and on photoelectric conversion device, the second electromagnetic shielding glass lower shell surface around, be separately installed with flexible glue pad.
And the outside of described holding wire is provided with screen layer, the outside of described sensor wire is provided with screen layer.
And described sensor wire is drawn from upper shell end.
And described electromagnetic shielding glass is the surperficial glass that is coated with metallic film, or surface is coated with the lucite of metallic film.
Advantage of the present invention and good effect are:
The present invention installs respectively electromagnetic shielding glass and is of coupled connections and is drawn ground connection by wire in light source discharger bottom and photoelectric conversion device top, electromagnetic interference and the high frequency electro surgical unit that can effectively shield in environment disturb, and effectively bring into play the effect of electromagnetic shielding.The present invention compares with traditional blood oxygen transducer, by perfect metallic shield body and good earth, reduces the impact of external electromagnetic field on detection signal, improves signal to noise ratio, has guaranteed the precision of measuring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described.
A kind of pulse blood oxygen probe with electro-magnetic screen function, as shown in Figure 1, comprises upper shell 1, lower house 2, spring clamp mechanism 4, light source discharger 5, photoelectric conversion device 6 and sensor wire 7, upper shell and lower house are oppositely arranged and the spring clamp mechanism by one end links together, light source discharger and photoelectric conversion device are arranged on respectively on the relative position of upper shell and lower house, the holding wire that light source discharger and photoelectric conversion device are used for example, by being arranged on the sensor wire of upper shell and being connected with external equipment (on monitor or display screen), this holding wire adopts the outside holding wire with screen layer, this sensor wire outside is provided with screen layer, by holding wire, shield the shielding with sensor wire and can reduce to a certain extent electromagnetic interference.The innovation of this patent is: in the bottom of light source discharger, be provided with the first electromagnetic shielding glass 8, on the top of photoelectric conversion device, be provided with the second electromagnetic shielding glass 9, described the first electromagnetic shielding glass and the second electromagnetic shielding glass are of coupled connections by wire and draw ground connection by sensor wire; On light source discharger, the first electromagnetic shielding glass upper shell surface around and on photoelectric conversion device, the second electromagnetic shielding glass lower shell surface around, be separately installed with flexible glue pad.
This pulse blood oxygen probe adopts the special glass with electro-magnetic screen function, this electromagnetic shielding glass is made by metallic film on glass surface or lucite plated surface, electromagnetic shielding glass is arranged on to light source discharger bottom and photoelectric conversion device top, play the effect of electromagnetic shielding, do not hinder the propagation of light path simultaneously.Because electromagnetic shielding glass can affect light transmittance to a certain extent, therefore, by improving the luminous intensity of light source discharger, the loss of light transmittance is compensated.
The special glass that the present invention adopts electromangnetic spectrum to develop, can carry out the protection on space for electromagnetic radiation, adopt and improve and reasonably shield radiation is spatially kept apart with receptor, make interfere with electromagnetic field intensity when arriving receptor be down to bottom line.When measuring, finger is stretched between upper-lower casing, the finger dorsal part of finger is attached on the first electromagnetic shielding glass, and the finger veutro of finger is attached on the second electromagnetic shielding glass and by after spring clamp mechanism, is connected realizes the measurement function of blood oxygen saturation with external equipment.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in the specific embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (5)
1. a pulse blood oxygen probe with electro-magnetic screen function, comprises upper shell, lower house, spring clamp mechanism, light source discharger, photoelectric conversion device and sensor wire, upper shell and lower house are oppositely arranged and the spring clamp mechanism by one end links together, light source discharger and photoelectric conversion device are arranged on respectively on the relative position of upper shell and lower house, the holding wire that light source discharger and photoelectric conversion device are used is connected with external equipment by sensor wire, it is characterized in that: in the bottom of light source discharger, be provided with the first electromagnetic shielding glass, on the top of photoelectric conversion device, be provided with the second electromagnetic shielding glass, described the first electromagnetic shielding glass and the second electromagnetic shielding glass are of coupled connections by wire and draw ground connection by sensor wire.
2. a kind of pulse blood oxygen probe with electro-magnetic screen function according to claim 1, is characterized in that: on described light source discharger, the first electromagnetic shielding glass upper shell surface around and on photoelectric conversion device, the second electromagnetic shielding glass lower shell surface around, be separately installed with flexible glue pad.
3. a kind of pulse blood oxygen probe with electro-magnetic screen function according to claim 1, is characterized in that: the outside of described holding wire is provided with screen layer, and the outside of described sensor wire is provided with screen layer.
4. a kind of pulse blood oxygen probe with electro-magnetic screen function according to claim 1, is characterized in that: described sensor wire is drawn from upper shell end.
5. according to a kind of pulse blood oxygen probe with electro-magnetic screen function described in claim 1 to 4 any one, it is characterized in that: described electromagnetic shielding glass is the surperficial glass that is coated with metallic film, or surface is coated with the lucite of metallic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755669.7A CN103705249A (en) | 2013-12-27 | 2013-12-27 | Pulse and blood oxygen probe with electromagnetic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755669.7A CN103705249A (en) | 2013-12-27 | 2013-12-27 | Pulse and blood oxygen probe with electromagnetic shielding function |
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| CN103705249A true CN103705249A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310755669.7A Pending CN103705249A (en) | 2013-12-27 | 2013-12-27 | Pulse and blood oxygen probe with electromagnetic shielding function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567765A (en) * | 2018-10-31 | 2019-04-05 | 无锡市儿童医院 | A kind of portable arteries and veins oxygen monitoring system |
| CN113543705A (en) * | 2019-03-07 | 2021-10-22 | 皇家飞利浦有限公司 | Device for monitoring oxygen saturation level in clinical condition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201290680Y (en) * | 2008-11-28 | 2009-08-19 | 深圳市理邦精密仪器有限公司 | Finger clipping type blood oxygen sensor with shade effect |
| WO2012109661A2 (en) * | 2011-02-13 | 2012-08-16 | Cas Medical Systems, Inc. | Nirs sensor assembly including electrically conductive and optically transparent emi shielding |
-
2013
- 2013-12-27 CN CN201310755669.7A patent/CN103705249A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201290680Y (en) * | 2008-11-28 | 2009-08-19 | 深圳市理邦精密仪器有限公司 | Finger clipping type blood oxygen sensor with shade effect |
| WO2012109661A2 (en) * | 2011-02-13 | 2012-08-16 | Cas Medical Systems, Inc. | Nirs sensor assembly including electrically conductive and optically transparent emi shielding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567765A (en) * | 2018-10-31 | 2019-04-05 | 无锡市儿童医院 | A kind of portable arteries and veins oxygen monitoring system |
| CN113543705A (en) * | 2019-03-07 | 2021-10-22 | 皇家飞利浦有限公司 | Device for monitoring oxygen saturation level in clinical condition |
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Application publication date: 20140409 |