US4559949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stool sampling device
Assignee: Individual
•
Filing: 1983-08-15
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Granted: 1985-12-24
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Expires: 2003-08-15
Abstract
Abstract Disclosed is a device for collection of a stool sample to be used in the clinical evaluation of a patient for gastro-intenstinal bleeding. This device comprises a multilayered composite, which can be used in a manner analogous to toilet tissue, to obtain a stool sample which can thereafter be evaluated for occult blood.
Inventors
- 👤 Robert A. Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:29
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0038; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/521
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A stool sampling device, comprising: a first sheet of pliant, impermeable material; an absorbent layer impregnated with a reagent for reacting with any occult blood in a fecal sample, adhesively secured to one side of said first sheet, for receiving a fecal sample; a second sheet of pliant material adhesively secured in overlying relationship to said absorbent layer and releasable therefrom, said second sheet having a plurality of openings coincident with at least a portion of said absorbent layer for controlling an amount of stool sample which is deposited upon said absorbent layer when said second sheet is wiped over a fecal sample; said first sheet being provided with at least one fold means so as to aid in forming a closed pouch to effectively isolate a stool sample within said pouch subsequent to removal of said second sheet of pliant material from the device.
Claim 2
Dependent Claim
145 words
A stool sampling device, comprising: a first sheet of pliant, impermeable material; an absorbent layer impregnated with a reagent for reacting with any occult blood in a fecal sample, adhesively secured to one side of said first sheet, for receiving a fecal sample; a second sheet of pliant material adhesively secured in overlying relationship to said absorbent layer and releasable therefrom, said second sheet having a plurality of openings coincident with at least a portion of said absorbent layer for controlling an amount of stool sample which is deposited upon said absorbent layer when said second sheet is wiped over a fecal sample; said first sheet being provided with at least one fold means so as to aid in forming a closed pouch to effectively isolate a stool sample within said pouch subsequent to removal of said second sheet of pliant material from the device.
Claim 3
Dependent Claim
22 words
The device of claim 1 further comprising securement means for maintaining the device in a folded condition to form a closed pouch.
Claim 4
Dependent Claim
11 words
The device of claim 1 wherein the reagent is guaiac reagent.
Claim 5
Dependent Claim
36 words
A method of collecting a stool smear comprising: wiping the second sheet of the sampling device of claim 1 over an anal area after a bowel movement to deliver a stool sample onto the absorbent layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |