CN201664305U - High-precision blood oxygen probe - Google Patents
High-precision blood oxygen probe Download PDFInfo
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- CN201664305U CN201664305U CN2010201064169U CN201020106416U CN201664305U CN 201664305 U CN201664305 U CN 201664305U CN 2010201064169 U CN2010201064169 U CN 2010201064169U CN 201020106416 U CN201020106416 U CN 201020106416U CN 201664305 U CN201664305 U CN 201664305U
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- probe
- blood oxygen
- chip
- high accuracy
- memory chip
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Abstract
The utility model discloses a high-precision blood oxygen probe which includes a probe, a cable and a plug mutually connected in sequence; the key point of the high-precision blood oxygen probe is as follows: a digital memory chip is also arranged in the high-precision blood oxygen probe. The digital memory chip which is planted in the high-precision blood oxygen probe can be a random memory chip, a flash memory chip or a programmable read-only chip, etc. The chip can be arranged on the probe or a connecting wire used by the probe. The digital memory chip can be used for storing various relevant information of the probe such as the wavelength value, wavelength compensation curve, R curve of the probe, etc, thereby providing conditions for a blood oxygen instrument to detect the variable quantity of forward voltage drop of a LED in the high-precision blood oxygen probe through a detection circuit and transfer relevant data in the digital memory chip to re-adjust the peak wavelength value of the LED to realize the real time compensation of the peak wavelength of the probe.
Description
Technical field
This utility model relates to a kind of probe, especially relates to a kind of high accuracy blood oxygen probe.
Background technology
Pulse blood oxygen instrument is mainly used in measures the speciality that changes blood flow, comprises pulse frequency of arterial oxygen saturation, heart or the like.The measurement of these speciality can realize by a noninvasive blood oxygen probe.The part that the light that sends by probe penetrates human body has the dabbling tissue of blood, and pulse blood oxygen instrument calculates the various speciality of blood flow according to the absorbtivity of light then, such as, arterial oxygen saturation.For the arterial oxygen saturation of the tissue of measuring human body, probe needs the light (red-light LED and infrared light LED) of two kinds of different wavelength to satisfy the calculation requirement of pulse blood oxygen instrument.Therefore, the computational accuracy of blood oxygen saturation just depends on known LED wavelength.Yet the wavelength of each LED is not quite similar, even same LED wavelength also is to change in varying environment, different period, and wavelength shift takes place.Therefore, the meeting of the computational accuracy of pulse blood oxygen instrument blood oxygen saturation is owing to the skew of the wavelength of blood oxygen probe produces certain error.For the difference of blood oxygen probe wavelength, main a solution is exactly to increase an identification resistance on probe, and this identification resistance is mainly used to distinguish the pairing wavelength of probe.Pulse blood oxygen instrument when work, detect the value of this resistance earlier, the wavelength value that is adopted when deciding blood oxygen saturation to calculate according to the value of resistance then, this method makes manufacturer need not spend the expensive LED that can filter out unique wavelength.Yet, though identification resistance can make blood oxygen probe no longer be confined to a single wavelength value, but the wavelength of blood oxygen probe is being measured when using and can changed with the difference of factors such as probe drive current, ambient temperature, therefore, this method can not solve the problem of blood oxygen wavelength change fully.Because the skew of wavelength mainly is because variation of temperature is caused during blood oxygen probe work, therefore, contingent wavelength shift when this utility model is primarily aimed at blood oxygen probe worked, utilize relation between temperature, voltage, the wavelength three to realize real-Time Compensation, thereby remedy probe causes measurement error because of wavelength change defective the blood oxygen probe wavelength.
The utility model content
Technical problem to be solved in the utility model is that a kind of high accuracy blood oxygen probe is provided.
For solving above technical problem, the technical solution of the utility model is: a kind of high accuracy blood oxygen probe, comprise the probe, cable and the plug that connect successively mutually, and it is characterized in that: in described high accuracy blood oxygen probe, also be provided with the memory for digits chip.
As improvement of the present utility model, described memory for digits chip is arranged on described probe, described plug or is used for the connecting line of described probe.
Further improve as this utility model, be provided with the displacement accelerometer in the described probe, be provided with the probe movement interference blanking unit in the described displacement accelerometer, described probe movement interference blanking unit is connected with monitor system.
Further improve as this utility model, described memory for digits chip can be storage chip, flash chip or read-only chip able to programme at random.
Further improve again as this utility model, be provided with red-light LED and infrared light LED in the described probe.
Implanted a digital memory chip in the described high accuracy blood oxygen probe, this memory chip can be storage chip, flash chip or read-only chip able to programme etc. at random.This chip can also be placed on the probe, perhaps on the connecting line that probe uses.This memory for digits chip can be used for storing the various relevant informations of probe, such as wavelength value, wavelength compensation curve, the R curve of probe.
Implant a displacement accelerometer at the probe segment of described high accuracy blood oxygen probe, be provided with the probe movement interference blanking unit in the described displacement accelerometer, the motion that described displacement accelerometer can the perception probe.When human motion, displacement accelerometer on the probe just can perception goes out the generation of motion, and tell monitor system with this by the probe movement interference blanking unit, at this moment monitor system will be called corresponding algorithm this motion artifacts will be handled, thereby guarantee the accuracy of blood oxygen test.
The light source of described high accuracy blood oxygen probe is made up of two light emitting diodes, and the power consumption major part changes into heat during light emitting diode work, has only small part to convert luminous energy to, forms luminescence phenomenon.By different electric currents, the PN junction of LED will produce different heats; When making LED pass through constant current, the PN junction temperature of LED will be with variation of ambient temperature.
The basic step of probe wavelength compensation is as follows:
1, utilize the characteristic of diode, under different ambient temperatures, by the variation of forward voltage drop of test LED, the variation relation between the spike of setting up LED forward voltage drop and LED is grown.
2, will pop one's head in the operating temperature range spike long number value of corresponding LED under the different temperatures is stored in the memory chip in the probe plug, calls during the work of blood supply oxygen instrument.
When 3, popping one's head in work, by the testing circuit on the blood oxygen instrument, detect the variable quantity of the forward voltage drop of probe LED, then according to the transformation relation formula in the memory chip, convert LED wavelength change amount to and readjust the spike long value of LED, thereby reach the purpose that the probe spike is grown real-Time Compensation.
Can realize compensation by implementing above technical scheme, thereby reach the calibration probe, guarantee the certainty of measurement of pulse blood oxygen instrument the blood oxygen probe wavelength shift.
Description of drawings
Below in conjunction with Figure of description this utility model is done further detailed description, wherein:
Fig. 1 is a system construction drawing of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of high accuracy blood oxygen probe comprises the probe, cable and the plug that connect successively mutually, it is characterized in that: also be provided with the memory for digits chip in described high accuracy blood oxygen probe; Described memory for digits chip is arranged on the described plug, and described memory for digits chip can be storage chip, flash chip or read-only chip able to programme at random; Be provided with the displacement accelerometer in the described probe, be provided with red-light LED and infrared light LED in addition.
Must be pointed out that some indefinitenesses that the foregoing description is just made this utility model illustrate.But person of skill in the art will appreciate that, do not departing under aim of the present utility model and the scope that can make modification to this utility model, replace and change, these modifications, replacement and change still belong to protection domain of the present utility model.
Claims (9)
1. a high accuracy blood oxygen probe comprises the probe, cable and the plug that connect successively mutually, it is characterized in that: also be provided with the memory for digits chip in described high accuracy blood oxygen probe.
2. high accuracy blood oxygen probe according to claim 1 is characterized in that: described memory for digits chip is arranged on described probe, described plug or is used for the connecting line of described probe.
3. according to claim 1 or 2 described high accuracy blood oxygen probes, it is characterized in that: be provided with the displacement accelerometer in the described probe.
4. high accuracy blood oxygen probe according to claim 3 is characterized in that: be provided with the probe movement interference blanking unit in the described displacement accelerometer, described probe movement interference blanking unit is connected with monitor system.
5. high accuracy blood oxygen probe according to claim 4 is characterized in that: described memory for digits chip can be storage chip, flash chip or read-only chip able to programme at random.
6. high accuracy blood oxygen probe according to claim 5 is characterized in that: be provided with red-light LED and infrared light LED in the described probe.
7. according to claim 1 or 2 described high accuracy blood oxygen probes, it is characterized in that: described memory for digits chip can be storage chip, flash chip or read-only chip able to programme at random.
8. according to claim 1 or 2 described high accuracy blood oxygen probes, it is characterized in that: described memory for digits chip is the chip of the wavelength value, wavelength compensation curve and/or the R calibration curve information that store described probe.
9. according to claim 1 or 2 described high accuracy blood oxygen probes, it is characterized in that: be provided with red-light LED and infrared light LED in the described probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201064169U CN201664305U (en) | 2010-01-28 | 2010-01-28 | High-precision blood oxygen probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201064169U CN201664305U (en) | 2010-01-28 | 2010-01-28 | High-precision blood oxygen probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664305U true CN201664305U (en) | 2010-12-08 |
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ID=43265256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201064169U Expired - Lifetime CN201664305U (en) | 2010-01-28 | 2010-01-28 | High-precision blood oxygen probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592780A (en) * | 2013-09-02 | 2016-05-18 | 莱夫毕恩技术有限公司 | Bodily worn multiple optical sensors heart rate measuring device and method |
| CN109106359A (en) * | 2014-08-22 | 2019-01-01 | 苹果公司 | Heart rate path optimization device |
-
2010
- 2010-01-28 CN CN2010201064169U patent/CN201664305U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592780A (en) * | 2013-09-02 | 2016-05-18 | 莱夫毕恩技术有限公司 | Bodily worn multiple optical sensors heart rate measuring device and method |
| CN109106359A (en) * | 2014-08-22 | 2019-01-01 | 苹果公司 | Heart rate path optimization device |
| CN109106359B (en) * | 2014-08-22 | 2022-03-01 | 苹果公司 | Heart rate path optimizer |
| US11986322B2 (en) | 2014-08-22 | 2024-05-21 | Apple Inc. | Heart rate path optimizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 3, building 1, building 18, Arts crafts emporium, No. 518067, Shun Shan Road, Shekou, Guangdong, Shenzhen, Nanshan District Patentee after: Shenzhen Solaris Medical Technology Inc. Address before: 6, building 9, building 30, 518057, science Road, Nanshan District science and Technology Industrial Park, Shenzhen, Guangdong Patentee before: Shenzhen Solaris Medical Technology Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |
|
| CX01 | Expiry of patent term |