US4675284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for evaluating liver disease
Assignee: Rutgers Health
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Filing: 1984-08-22
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Granted: 1987-06-23
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Expires: 2004-08-22
Abstract
Abstract There is disclosed an improved process and apparatus for treating liver biopsies wherein tritiated proline and tritiated thymidine are forced through respective liver biopsies, and thereafter the respective liver biopsies are evaluated for collagen synthesis and DNA synthesis, respectively, utilizing autoradiographic techniques.
Inventors
- 👤 Carroll M. Leevy
- 👤 Gloria McNeil
- 👤 Saad Habba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/04; C12Q1/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
50 words
In a process for assaying a liver biopsy with a tritiated reagent which comprises contacting the liver bipsy with a tritiated reagent and evaluating the liver biopsy cells which have incorporated the tritiated reagent by autoradiographs, the improvement wherein the tritiated reagent is perfused under pressure through the liver biopsy.
Claim 2
Dependent Claim
50 words
In a process for assaying a liver biopsy with a tritiated reagent which comprises contacting the liver bipsy with a tritiated reagent and evaluating the liver biopsy cells which have incorporated the tritiated reagent by autoradiographs, the improvement wherein the tritiated reagent is perfused under pressure through the liver biopsy.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein the tritiated reagent is tritiated proline.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the tritiated reagent is tritiated thymidine.
Claim 5
Dependent Claim
15 words
The process of claim 1 which further comprises collecting the tritiated reagent perfusate under vacuum.
Claim 6
Dependent Claim
13 words
The process of claim 4 wherein the vacuum is generated by a pump.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |