Title:
痛覚情報の検出装置
Document Type and Number:
Japanese Patent JP4633260
Kind Code:
B2
Abstract:
A cuff (200), having a blood shutting bag (210) and a detection bag (220), is attached to an upper arm of a patient and a main device unit (100) is made to operate. A CPU (130) performs the measurement operation in accordance with a program inside a memory (160). First, the air pump (140) is started to deliver air to the respective bags, the cuff pressure is set higher than the systolic pressure, and after the blood flow at the upper arm has been stopped completely, a leak valve (150) is gradually opened to lower the cuff pressure. During the lowering of pressure, the Korotkoff sound that is generated at the detection bag (220) is detected by a sound wave sensor (110) and is taken as digital data into the memory (160). This Korotkoff sound is Fourier transformed and the result thereof is displayed as a spectral waveform on a display device (170) and printed out by means of a printer (180). The spectral waveform that is obtained contains information on pain at specific locations that are determined according to the cuff pressure at which the Korotkoff sound was sampled and can be used for diagnosis.
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Inventors:
Mitsutomi Tomita
Application Number:
JP2000601282A
Publication Date:
February 16, 2011
Filing Date:
November 12, 1999
Export Citation:
Assignee:
Mitsutomi Tomita
International Classes:
A61B5/022; A61B5/0225
Domestic Patent References:
| JP2877950B2 | 1999-04-05 | |||
| JPH07136139A | 1995-05-30 | |||
| JPH0653109B2 | 1994-07-20 | |||
| JPS56128142A | 1981-10-07 |
Attorney, Agent or Firm:
Hiroshi Shimura