Abstract: An intestinal peristalsis detecting device comprises a radio frequency (RF) signal generator, an antenna, and a mixer. After the RF signal generator sends a pulse signal, the antenna receives the pulse signal and emits a pulse electromagnetic wave to an organism. Thereafter, the antenna receives a response pulse electromagnetic wave reflected from the organism to generate a response pulse signal. The mixer couples with the RF signal generator and the antenna to mix the pulse signal and the response pulse signal.

Abstract: A method for measuring physiological parameters uses statistical properties, spectrum analysis and feedback mechanisms to remove the signal noise generated by human body movement from a detected physiological signal.

Abstract: Ophthalmic irrigating solutions are disclosed. The ophthalmic irrigating solution comprises: a) ?-polyglutamic acid (?-PGA) and/or salt thereof in an amount effective to increase the viscosity of the irrigating solution; and b) an ophthalmically acceptable aqueous vehicle for the ?-PGA and/or salt thereof. Also disclosed is a method of irrigating ocular tissues of a patient, in which the method comprises introducing to the ocular tissues of the patient an ophthalmic irrigating solution comprising ?-PGA) and/or salt thereof in an amount sufficient to irrigate the ocular tissues of the patient.