Electronic pneumothorax monitoring device

Details Electronic pneumothorax monitoring device Electronic pneumothorax monitoring device

1995-06-01

1998-10-06

Nasser, Robert

Surgery

Truss

Pad

128665, 1286531, A61B 500

Patent

active

058162453

ABSTRACT:
The device presented here is a device for detecting the presence of pneumothorax in a patient including a non-coherent light source for shining light on a patient, mounted on a first patch, capable of being attached to the patient, a light detector for receiving light from the patient mounted on a second light shielding patch, capable of being attached to the patient, where the detector produces a first signal in response to received light, wherein the first and second patches being independently attachable to the patient and removable from the patient, a driving circuit for causing the light source to turn on and off at a predetermined frequency, a circuit for receiving the first signal from said light detector including a bandpass filter tuned to the predetermined frequency and producing a second signal indicating the presence of pneumothorax when said first signal exceeds a threshol, and an alarm for producing an alarm indicating the presence of pneumothorax in response to said second signal.

REFERENCES:
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patent: 5402779 (1995-04-01), Chen et al.
Beek et al, "Continuous Pneumothorat Monitoring by Rem. Hance Measurement," Applied Optics, vol. 32, No. 4, Feb. 1, 1993, pp. 454-460.
Gomar et al, "An Electronic Device (Episensor) for Detection of the Interpleural Space," Regional Anestesia, vol. 1C, No. 2, Mar.-Apr. 1991, pp. 112-115.

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