US4252129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring motion of living body organs
Assignee: Individual
•
Filing: 1978-11-07
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Granted: 1981-02-24
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Expires: 1998-11-07
Abstract
Abstract In a device for measuring motion of living body organs, an essential part which defines the oscillation frequency of the oscillator circuit of the device for measuring same comprises an electro-mechanical oscillator of a quartz resonator and impedance elements as coils or capacitors. The motion of organs on a living body surface or in a living body causes impedance changes in an impedance element and therefore, the detector is capable of detecting and measuring living body organ motion through a change in frequency.
Inventors
- 👤 Kohji Tamura
- 👤 Yoshiaki Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/11; A61B5/1126; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
120 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means in series arrangement, said oscillator means being operative to produce an output signal having a frequency in accordance with said resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 2
Independent Claim
120 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means in series arrangement, said oscillator means being operative to produce an output signal having a frequency in accordance with said resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 3
Dependent Claim
23 words
A device for measuring motion of living body organ as claimed in claim 1 wherein said capacitor means comprises a variable capacitor means.
Claim 4
Dependent Claim
25 words
A device for measuring motion of a living body organ as claimed in claim 1 wherein said inductance means comprises manually variable two-terminal inductance means.
Claim 5
Independent Claim
121 words
A device for measuring motion of living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnet field and capacitor means in parallel arrangement respectively; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 6
Independent Claim
121 words
A device for measuring motion of living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnet field and capacitor means in parallel arrangement respectively; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 7
Dependent Claim
22 words
A device for measuring motion of living body organ as claimed in claim 4 wherein said capacitor means comprises variable capacitor means.
Claim 8
Dependent Claim
24 words
A device for measuring motion of living body organ as claimed in claim 4, wherein said inductance means comprises manually variable two-terminal inductance means.
Claim 9
Independent Claim
142 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said quartz resonator means and said two-terminal inductance means being in parallel arrangement and said capacitor means being in series with said parallel arrangement; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 10
Independent Claim
142 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said quartz resonator means and said two-terminal inductance means being in parallel arrangement and said capacitor means being in series with said parallel arrangement; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 11
Independent Claim
144 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said quartz resonator and said capacitor means being in parallel arrangement with each other and said two-terminal inductance means being in series with said parallel arrangement; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 12
Independent Claim
144 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said quartz resonator and said capacitor means being in parallel arrangement with each other and said two-terminal inductance means being in series with said parallel arrangement; said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 13
Independent Claim
144 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said two-terminal inductance means and said capacitor means being in parallel arrangement with each other and said quartz resonator being in series with said parallel arrangement, said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
Claim 14
Independent Claim
144 words
A device for measuring motion of a living body organ comprising: oscillator means including quartz resonator means, two-terminal inductance means for producing an electromagnetic field and capacitor means, said two-terminal inductance means and said capacitor means being in parallel arrangement with each other and said quartz resonator being in series with said parallel arrangement, said oscillator means being operative to produce an output signal having a frequency in accordance with said quartz resonator means, inductance means and capacitor means respectively, the introduction of said organ into said electromagnetic field causing said field and hence the effective inductance of said two-terminal inductance means to vary in accordance with the proximity of said organ to said inductance means, whereby said effective inductance and hence the frequency of said oscillator means output signal varies in accordance with the motion of said organ relative to said inductance means.
References Cited (Backward Citations)
US2083335A
Cited
US2241190A
Cited
US2812427A
Cited
US3087117A
Cited
US3195535A
Cited
US3603881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |