Patent US1879216A successfully refreshed from Google Patents.
Patent US4096862A successfully refreshed from Google Patents.
US4096862A
Expired / Lapsed
US
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Locating of tubes in the human body
Assignee: Individual
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Filing: 1976-05-17
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Granted: 1978-06-27
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Expires: 1996-05-17
Abstract
Abstract A method for locating tubes, or internal lines, disposed within a passage of a body of a patient by means of radionuclides. A radioactive element is inserted into a line, such as a catheter, disposed in a body passage and is detected by a radiation measuring instrument, such as a Geiger counter, in order to locate the line. By monitoring the radioactive element as it is being inserted into the line, the entire course of the line within the patient's body can be accurately determined.
Inventors
- 👤 Salvatore A. DeLuca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:24
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/40; A61B6/4057; A61B6/12; A61B6/42; A61B6/4208; A61B6/4258; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108; A61B90/00; A61B90/39; A61B2090/392
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
98 words
A method for locating internal lines within a passage of a patient's body, comprising the steps of: (a) inserting a line into a passage of a patient; (b) inserting a finite radioactive source into the line inserted by step (a), the inserting step (b) including the step of placing a single discrete radioactive element inside a sheath closed only at one end for preventing contamination of the radioactive element; and (c) monitoring with a radiation measuring instrument the radioactive source inserted by step (b) and determining the location of the line at the position of the radioactive source.
Claim 2
Independent Claim
98 words
A method for locating internal lines within a passage of a patient's body, comprising the steps of: (a) inserting a line into a passage of a patient; (b) inserting a finite radioactive source into the line inserted by step (a), the inserting step (b) including the step of placing a single discrete radioactive element inside a sheath closed only at one end for preventing contamination of the radioactive element; and (c) monitoring with a radiation measuring instrument the radioactive source inserted by step (b) and determining the location of the line at the position of the radioactive source.
Claim 3
Dependent Claim
28 words
A method as set forth in claim 1, wherein the inserting step (b) includes the step of measuring the length the radioactive element is inserted into the line.
References Cited (Backward Citations)
US1867624A
Cited
US3093739A
Cited
GB857992A
Cited
US3399668A
Cited
US3750653A
Cited
US3847157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |