Patent US4070622A successfully refreshed from Google Patents.
US4643194A
Expired / Lapsed
US
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Flexible calibrator
Assignee: Individual
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Filing: 1982-01-15
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Granted: 1987-02-17
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Expires: 2002-01-15
Abstract
Abstract A calibrator oval for the internal gauging of the lumen of a stenotic segment of artery is provided with an elongated carrier having a controllable variable flexibility.
Inventors
- 👤 Thomas J. Fogarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:21
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1076
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
A device for measuring the degree of stenosis of arterial vessels comprising a flexible tubular shaft having a continuous generally imperforate side wall, a rounded tip member attached to said shaft as the distal end thereof, said tip member having an axial socket at its proximal end, an enlarged annular bulbous element forming part of said shaft and disposed adjacent said tip member, said element having a predetermined maximum diameter whereby said element serves as a lumen-sizing calibrator for an arterial vessel, a flexible stiffener member adapted to extend generally along the axis of said shaft for the full length thereof, said shaft and stiffener member having adjacently disposed complemental, interfittable and separable, handle portions at their proximal ends, said stiffener member having a distal end portion which interfits with the socket of said tip member when said handle portions are interfitted with each other, said stiffener member distal end portion and said socket being separated from each other when said handle portions are separated from each other.
Claim 2
Independent Claim
168 words
A device for measuring the degree of stenosis of arterial vessels comprising a flexible tubular shaft having a continuous generally imperforate side wall, a rounded tip member attached to said shaft as the distal end thereof, said tip member having an axial socket at its proximal end, an enlarged annular bulbous element forming part of said shaft and disposed adjacent said tip member, said element having a predetermined maximum diameter whereby said element serves as a lumen-sizing calibrator for an arterial vessel, a flexible stiffener member adapted to extend generally along the axis of said shaft for the full length thereof, said shaft and stiffener member having adjacently disposed complemental, interfittable and separable, handle portions at their proximal ends, said stiffener member having a distal end portion which interfits with the socket of said tip member when said handle portions are interfitted with each other, said stiffener member distal end portion and said socket being separated from each other when said handle portions are separated from each other.
Claim 3
Dependent Claim
37 words
The device of claim 1, said device being manipulatively threadable through arterial vessels by conjoint movement of said handle portions and by movement of one of said handle portions relative to the other of said handle portions.
References Cited (Backward Citations)
US2393003A
Cited
US3128769A
Cited
US3539034A
Cited
US3528404A
Cited
US3625200A
Cited
US3661148A
Cited
US3757768A
Cited
US3867945A
Cited
US3938504A
Cited
US3973556A
Cited
US4033331A
Cited
US4299226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |