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Physiological signal acquisition electrode and acquisition amplification circuit

A signal amplifying circuit and physiological signal technology, applied in the field of signal acquisition amplifying circuit and physiological signal acquisition electrode, can solve the problems of inability to use long-term, real-time monitoring, complex structure of electrocardiograph, etc., to eliminate discomfort, no toxic side effects , to ensure the effect of sensitivity and stability

Inactive Publication Date: 2011-08-10
北京正业德盈科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the electrocardiograph is often complex in structure and needs to be operated by a special person in the hospital, and cannot be used for long-term and real-time monitoring.

Method used

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  • Physiological signal acquisition electrode and acquisition amplification circuit
  • Physiological signal acquisition electrode and acquisition amplification circuit
  • Physiological signal acquisition electrode and acquisition amplification circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Preparation of conductive rubber

[0057] Mix 70% by weight rubber base material with 30% 1200-mesh carbon powder; pour it into a mold and solidify it.

[0058] The invention selects the rubber that meets the national food safety standard, and eliminates the toxic and side effects of the rubber.

[0059] In order to reduce the influence of the detection results due to the adhesion of the oil, sweat and various body discharges from the human body surface skin to the surface of the collection electrode, the side of the conductive rubber close to the skin should be smooth.

[0060] Electrode preparation

[0061] Such as figure 1 As shown, the electrode includes a physiological signal collection layer 1 made of conductive rubber obtained by the above method, with a hardness of 65°, a thickness of about 1mm, and a volume resistance of 100Ω. In order to facilitate the connection with subsequent amplification circuits, the physiological signal acquisition layer can be conne...

Embodiment 2

[0063] Preparation of conductive rubber

[0064] Mix 85% by weight rubber base material with 15% 800-mesh carbon powder; pour it into a mold and solidify it.

[0065] The hardness of the prepared conductive rubber is 50°, the thickness is about 0.8mm, and the volume resistance is about 400Ω.

[0066] The conductive rubber obtained by the above method is prepared as an electrode, including a physiological signal acquisition layer 1 formed of conductive rubber and a rubber base layer 3, which are stacked in sequence, and the physiological signal acquisition layer is connected to the metal lead 4 passing through the rubber base layer as the lead-out part. see figure 2 .

[0067] The thickness of the rubber base layer is 8mm, and the rubber base material is added into the curing agent according to the designed hardness to form a mold, and the hardness is set at 30° to 35°.

[0068] The physiological signal collection layer 1 and the rubber base layer 3 are connected as one by ...

Embodiment 3

[0070] Preparation of conductive rubber

[0071] Mix evenly 80% by weight rubber base material and 20% 1000-mesh carbon powder; pour it into a mold to solidify and form.

[0072] The hardness of the prepared conductive rubber is 60°, the thickness is about 0.8mm, and the volume resistance is about 300Ω.

[0073] see image 3 The electrode includes a physiological signal collection layer 1 and a metal sheet 2 formed of conductive rubber obtained by the above method, and the two are stacked in sequence to form an electrical path.

[0074] The metal sheet 2 is a copper sheet with a thickness of 0.3 mm. The metal sheet 2 can directly serve as the lead-out part.

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Abstract

The invention discloses a physiological signal acquisition electrode and an acquisition amplification circuit. The physiological signal acquisition electrode comprises a physiological signal acquisition layer which comprises 70%-85% weight percentage of rubber and 15%-30% weight percentage of carbon powder. The acquisition amplification circuit comprises at least one acquisition electrode and a signal amplification circuit, wherein the acquisition electrode is connected with the signal amplification circuit, and the acquisition electrode is the physiological signal acquisition electrode. The physiological signal acquisition electrode provided by the invention uses conductive rubber, so that a long-standing puzzle that a metal electrode damages the skin of people is solved; and a base layer is added in the electrode, so that negative effects caused by too thin and too hard conductive rubber used as the electrode are avoided; simultaneously, the acquisition amplification circuit eliminates interference signals through a high impedance front stage and a mirror image circuit, extracts and amplifies useful physiological signals, so that long-term and real-time acquisition of the physiological signals is really implemented, and efficiency and success ratio of disease prevention and diagnosis are greatly improved.

Description

technical field [0001] The invention relates to the collection of physiological signals, in particular to a physiological signal collection electrode and a signal collection amplifying circuit using the electrode. Background technique [0002] As people's living standards are getting higher and higher, people's health problems are becoming more and more prominent. Cardiovascular and cerebrovascular diseases and hypertension are at a high incidence period, and the age of onset is getting earlier and earlier. This disease has a long-term accumulation process, and the onset is sudden and dangerous. How to monitor the regularity of the onset and early warning when there are symptoms of the onset is particularly important. [0003] From the perspective of medical research and the medical field, the operation of various organs that maintain life in the human body will be accompanied by the generation and transmission of bioelectricity. Through the research and observation of bio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/04C08L21/00C08K3/04
Inventor 张思琦崔伟
Owner 北京正业德盈科技有限公司