System for monitoring intraocular pressure

A monitoring system and intraocular pressure technology, applied in the field of medical devices, can solve the problems of roughness, lack of sufficient and accurate basis for clinical diagnosis and treatment of glaucoma, and the discrepancy between the measurement results of the patient's normal physiological activities and the real situation, so as to avoid corneal damage. Effect
CN101766473AInactive Publication Date: 2010-07-07PEOPLES HOSPITAL PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PEOPLES HOSPITAL PEKING UNIV
Publication Date
2010-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a system for monitoring intraocular pressure. The system comprises a wireless pressure sensor and a portable signal receiving processor, wherein the wireless pressure sensor is implanted below the conjunctiva of limbus cornea and is directly contacted with an episcleral tissue; the pressure sensor comprises a flexible microelectrode array and a signal processing and transmitting unit; the flexible microelectrode array is used for sensing the impedance change of the surface of the episcleral tissue; the signal processing and transmitting unit is used for converting the impedance change into a voltage signal and processing and sending out the voltage signal; and the signal receiving processor is used for receiving the signal and analyzing and fitting the signal to acquire a numerical value of the intraocular pressure and storing and displaying the numerical value. The system for monitoring the intraocular pressure can automatically and continuously monitor the intraocular pressure of a patient for 24 hours without influencing the normal physical activity of the patient so as to provide sufficient and accurate data for clinical diagnosis and therapy. Furthermore, the pressure sensor is directly contacted with the episcleral tissue so as to avoid injury, infection, anoxia and the like of cornea when the pressure sensor is contacted with a corneal tissue for a long time.
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Description

technical field

[0001] The invention relates to a medical device, in particular to an implanted continuous intraocular pressure monitoring system. Background technique

[0002] Glaucoma is the second leading cause of blindness worldwide. According to the report of the World Health Organization, there are 70 million people in the world suffering from glaucoma, and as the population ages, this number is expected to increase by 50% by 2020 (Quigley HA, Broman AT.The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 2006 Mar; 90(3): 262-7.). Glaucoma is a group of diseases characterized by optic neuropathy accompanied by corresponding visual field defects. The increase of intraocular pressure is one of the primary factors of the disease. Therefore, it is also the most important clinical examination in the diagnosis and follow-up of glaucoma clinically. One of the indicators. At present, the relatively accepted standard method for measuring intraocula...

Claims

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