CN1369251A - Intra cranial pressure measurer - Google Patents
Intra cranial pressure measurer Download PDFInfo
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- CN1369251A CN1369251A CN 02104049 CN02104049A CN1369251A CN 1369251 A CN1369251 A CN 1369251A CN 02104049 CN02104049 CN 02104049 CN 02104049 A CN02104049 A CN 02104049A CN 1369251 A CN1369251 A CN 1369251A
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- tube
- luminous tube
- pressure measurer
- cranial pressure
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Abstract
An intracranial pressure measurer is composed of sensor, driven of LED, receiver of photosensitive diode, signal amplifier-filter, data acquisition circuit and microcomputer system. The said sensor, LED and photosensitive diode are connected via said driver and receiver to microcomputer system. Its advantages are simple structure high precision and no wound.
Description
Technical field
The present invention relates to a kind of medical treatment device that brainpan is detected, the particularly occasion that intracranial pressure is being detected.
Background technology
The patient of craniocerebral injury has intracranial pressure in various degree to raise usually, by the monitoring to intracranial pressure, reduces intracranial pressure, in the treatment of cerebral trauma significant values is arranged.Used ICP technology mostly has wound in now clinical, when implementing this technology, must bore the exploration holes that open different sizes in patient head, and pick off is inserted intracranial.This technology not only can cause very big misery to patient, has also increased the danger of infecting, and can stay permanent damage to patient head, and Chinese patent description 96216235 had both adopted said method.The another kind of intracranial pressure detection technique that generally adopts is the lumbar puncture pressure measurement, and wound property is also arranged, and when detecting, cerebrospinal pressure is reduced suddenly, might bring out cerebral hernia, occurs dangerous.Optimal monitoring intracranial pressure technology is non-invasive monitoring intracranial pressure.Chinese patent description 85203288 has been announced a kind of " non-invasive intracrenial pressure monitor ", employing be that traditional Chinese medical science human acupoint is applied electric pulse, the method for the detection of reflected signal of telecommunication is monitored intracranial pressure, its certainty of measurement is relatively poor.
Summary of the invention
The present invention is the shortcoming and defect that overcomes above-mentioned prior art, provides a kind of intracranial pressure is carried out the medical treatment device that noinvasive accurately detects.
Technical scheme of the present invention is: a kind of intra cranial pressure measurer, by pick off, the drive circuit of luminous tube, the receiving circuit of photosensitive tube, signal amplification circuit filter, data acquisition circuit, microsystem is formed, described pick off luminous tube, photosensitive tube is respectively through the luminous tube drive circuit, the photosensitive tube synchronous receiving circuit links to each other with microsystem, photosensitive tube is also through signal amplification circuit filter, data acquisition circuit links to each other with microsystem, in the substrate of pick off, luminous tube and several photosensitive tubes are arranged point-blank, described luminous tube is a near-infrared high-power light-emitting pipe, wavelength is between 600nm～1300nm, the luminous tube drive circuit is selected pulsed drive for use, and data acquisition circuit adopts the high accuracy integrated filter.Intra cranial pressure measurer of the present invention, simple in structure, can carry out noinvasive and accurately detect, use very convenient.
Description of drawings
Fig. 1 is a population structure block diagram of the present invention
Fig. 2 is a main program flow chart of the present invention
Fig. 3 is an interrupt routine flow chart of the present invention
The specific embodiment
Below in conjunction with accompanying drawing the present invention is elaborated.
Operation principle of the present invention is as follows.In the substrate of pick off, luminous tube and several photosensitive tubes are arranged point-blank.During use pick off is lain in the forehead of human body, near infrared light that luminous tube sends is through skin, skull, subarachnoid space (in be full of cerebrospinal fluid), ectocinerea and alba, oppositely come out again through such order-reflected, received by photosensitive tube, the photosensitive tube of different distance receives the reflected light of different depth tissue.Because subarachnoid space is done clocklike to shrink and expansion with beat pulse, so photosensitive tube will receive a fluctuating signal that is similar to pulse wave.And the height of intracranial pressure influences the amplitude of this fluctuating signal, thereby can pass through the detection of reflected optical signal, comes the height of qualitative analysis intracranial pressure, with monitoring cerebral trauma patient's intracranial pressure.
When microprocessor system is sent detection signal, it is luminous that luminous tube is driven drives, because luminous tube is near-infrared luminous pipe, utilized in the scope of between wavelength is for 600nm～1300nm " optical window ", tissue is minimum to the absorption of light, promptly exists measurable diffusing or diffuse transmission light on the tissue site of clinical monitoring, in addition luminous tube power height, and can under the prerequisite that does not influence instantaneous power, reduce mean power, thereby can obtain strong signal.Photosensitive tube receives reflected light after amplification filtering circuit, the data acquisition circuit of receiving circuit, signal enter microsystem, carries out date processing by software.The amplification filtering circuit adopts the high accuracy integrated filter to improve signal to noise ratio.
After microcomputer start mastery routine starts, carry out the initialization liquid crystal display, distributing system resource, whether detect the beginning button then presses, if by the next commentaries on classics of loosing, comprise initial setting up, Timer is set, system enters out interrupt status, the simultaneity factor signal procedure starts, whether detection show label position is 0 under the interrupt status opening, it is not 0 wait, be that 0 data that signal procedure is received is delivered to data processor and handled, adopt moving average in the data processor software, adaptive-filtering, digital signal processing methods such as synchronized sampling integration are realized the processing of small-signal, after disposing, the result is delivered to computer screen, and detect end key and have or not and press.
Enter out interrupt status in mastery routine, opening interrupt routine starts, send signal to the luminous tube drive circuit, make its pulse signal step-down, behind the 10 μ S that delay time, make the sampling/maintenance synchronous sampling signal step-down of data acquisition circuit again, delay time behind the 10 μ S, image data, and with the stack of the data that collect, detect data acquisition circuit whether continuous acquisition 10 data, if, then the show label position is zero, and the 110 μ S that delay time uprise sampling/maintenance synchronizing signal, 10 μ S delay time, make luminous tube drive pulse signal step-down, recover on-the-spot, end interrupt.
Claims (6)
1. intra cranial pressure measurer, drive circuit, the receiving circuit of photosensitive tube, signal amplification circuit filter, data acquisition circuit, microsystem by pick off, luminous tube are formed, it is characterized in that described pick off luminous tube, photosensitive tube link to each other with microsystem through luminous tube drive circuit, photosensitive tube synchronous receiving circuit respectively, photosensitive tube also links to each other with microsystem through signal amplification circuit filter, data acquisition circuit.
2. a kind of intra cranial pressure measurer according to claim 1 is characterized in that, described pick off is luminous tube and photosensitive tube, and they are positioned on the straight line of substrate of pick off, luminous tube at one end, photosensitive tube is sequentially arranged in the other end.
3. a kind of intra cranial pressure measurer according to claim 2 is characterized in that, described luminous tube is a near-infrared high-power light-emitting pipe.
4. a kind of intra cranial pressure measurer according to claim 2 is characterized in that, described luminous tube wavelength is between 600nm～1300nm.
5. a kind of intra cranial pressure measurer according to claim 1 is characterized in that, described luminous tube drive circuit is selected pulsed drive for use.
6. a kind of intra cranial pressure measurer according to claim 1 is characterized in that, described signal amplification circuit filter adopts the high accuracy integrated filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104049 CN1369251A (en) | 2002-03-08 | 2002-03-08 | Intra cranial pressure measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104049 CN1369251A (en) | 2002-03-08 | 2002-03-08 | Intra cranial pressure measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1369251A true CN1369251A (en) | 2002-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104049 Pending CN1369251A (en) | 2002-03-08 | 2002-03-08 | Intra cranial pressure measurer |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356891C (en) * | 2006-02-28 | 2007-12-26 | 北京科技大学 | Micro-wound encephalic pressure detecting system and its use method |
| CN106793953A (en) * | 2014-10-11 | 2017-05-31 | 林内特斯波尔有限公司 | For the apparatus and method of the measurement of intracranial pressure |
| CN110786843A (en) * | 2019-10-24 | 2020-02-14 | 中国工程物理研究院流体物理研究所 | Noninvasive optical measurement method for intracranial pressure |
| CN113705277A (en) * | 2020-05-20 | 2021-11-26 | 江苏集萃脑机融合智能技术研究所有限公司 | System and method for recognizing brain print |
-
2002
- 2002-03-08 CN CN 02104049 patent/CN1369251A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356891C (en) * | 2006-02-28 | 2007-12-26 | 北京科技大学 | Micro-wound encephalic pressure detecting system and its use method |
| CN106793953A (en) * | 2014-10-11 | 2017-05-31 | 林内特斯波尔有限公司 | For the apparatus and method of the measurement of intracranial pressure |
| CN110786843A (en) * | 2019-10-24 | 2020-02-14 | 中国工程物理研究院流体物理研究所 | Noninvasive optical measurement method for intracranial pressure |
| CN113705277A (en) * | 2020-05-20 | 2021-11-26 | 江苏集萃脑机融合智能技术研究所有限公司 | System and method for recognizing brain print |
| CN113705277B (en) * | 2020-05-20 | 2024-03-12 | 江苏集萃脑机融合智能技术研究所有限公司 | Brain pattern recognition system and method |
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