US5019349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe for measuring erythrocyte sedimentation rate
Assignee: Individual
•
Filing: 1990-08-01
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Granted: 1991-05-28
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Expires: 2010-08-01
Abstract
Abstract In a pipe 1 for measuring erythrocyte sedimentation rate, a sealing plug body 3, made of synthetic resin material which passes air but swells when water is absorbed thereby, is inserted into the pipe 1 in such a manner that the lower surface of the plug body 3 may be brought into contact with zero graduation of the pipe 1. The pipe is disposable, and it is possible to measure erythrocyte sedimentation rates easily and at small expense.
Inventors
- 👤 Issei Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:52
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/04; G01N15/05; B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L2300/00; B01L2300/02; B01L2300/025; B01L2300/028; Y; Y10; Y10T; Y10T436/00; Y10T436/25; Y10T436/25375; Y10T436/2575
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
In combination, a graduated, transparent, hollow pipe for measuring erythrocyte sedimentation rates and including a zero level graduation mark, and a spherical plug body of an air-permeable but water-absorbing swellable synthetic resin comprised throughout of interconnected randomly distributed particles and positioned within said hollow pipe such that the lower surface of said plug body is at the same level within the pipe as the zero level graduation mark of the pipe whereby the plug, upon swelling, provides sealing off of the tube to prevent blood from passing beyond the zero level graduation mark.
Claim 2
Dependent Claim
93 words
In combination, a graduated, transparent, hollow pipe for measuring erythrocyte sedimentation rates and including a zero level graduation mark, and a spherical plug body of an air-permeable but water-absorbing swellable synthetic resin comprised throughout of interconnected randomly distributed particles and positioned within said hollow pipe such that the lower surface of said plug body is at the same level within the pipe as the zero level graduation mark of the pipe whereby the plug, upon swelling, provides sealing off of the tube to prevent blood from passing beyond the zero level graduation mark.
Claim 3
Dependent Claim
35 words
A pipe for measuring erythrocyte sedimentation rate as claimed in claim 1 wherein the plug body is received within a cylindrical body of a synthetic resin and having a bottom plate with an opening therein.
References Cited (Backward Citations)
US2692503A
Cited
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Cited
US3783696A
Cited
US3891392A
Cited
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Cited
US3995496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |