Patent US5010892A successfully refreshed from Google Patents.
US5010892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body lumen measuring instrument
Assignee: PYRAMID TECHNOLOGIES INTERNATIONAL Inc
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Filing: 1988-05-04
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Granted: 1991-04-30
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Expires: 2008-05-04
Abstract
Abstract A body lumen measuring instrument for insertion into a body passageway such as a bronchial tube or the like in order to determine the interior lumen diameter and/or axial length of the passageway at a predetermined location. This instrument can also be used to aid selection of a radioisotope capsule of proper size to be properly positioned at a specific location for tumor treatment. The measuring instrument includes a flexible sleeve having a handle secured to one end. A cable is slidably positioned within the sleeve and secured at one end to a slide actuator within the handle and at the other end terminates in a probe adapted for determining body passageway size under endoscopic observation. A measurement scale is associated with an indicator on the slide actuator in order to display the passageway size.
Inventors
- 👤 David P. Colvin
- 👤 Raymond A. Whitney
- 👤 Bernard R. Marsh
- 👤 William M. Kline
- 👤 Ronald R. Rizzo
- 👤 Mark E. Orlosky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:15
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1076
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
231 words
An instrument for determining size characteristics of body lumens or passageways or the like and comprising: an elongated flexible sleeve adapted to be inserted into a body lumen or passageway or the like; a handle secured to one end of said flexible sleeve; an elongated cable slidably received within said sleeve and including probe means for determining body lumen or passageway or the like size characteristics at one end thereof; means cooperatively associated with said handle for sliding said cable within said sleeve so as to selectively extend and withdraw said probe means from the other end of the sleeve, wherein said elongated cable comprises a first cable, wherein said probe means comprises at least one resilient wire connected at one end thereof to said cable and having a normally curved shape so that said at least one wire extends generally radially outwardly from the other end of said flexible sleeve remote from said handle when extended by said sliding means, wherein said elongated cable further comprises a second cable and wherein said probe means also comprises at least one resilient wire connected at one end thereof to said second cable and extending generally coaxially outwardly from the end of said flexible sleeve when extended by said sliding means; and measurement means mounted on said handle and cooperatively associated with said cable sliding means for measuring movement by said probe means.
Claim 2
Dependent Claim
231 words
An instrument for determining size characteristics of body lumens or passageways or the like and comprising: an elongated flexible sleeve adapted to be inserted into a body lumen or passageway or the like; a handle secured to one end of said flexible sleeve; an elongated cable slidably received within said sleeve and including probe means for determining body lumen or passageway or the like size characteristics at one end thereof; means cooperatively associated with said handle for sliding said cable within said sleeve so as to selectively extend and withdraw said probe means from the other end of the sleeve, wherein said elongated cable comprises a first cable, wherein said probe means comprises at least one resilient wire connected at one end thereof to said cable and having a normally curved shape so that said at least one wire extends generally radially outwardly from the other end of said flexible sleeve remote from said handle when extended by said sliding means, wherein said elongated cable further comprises a second cable and wherein said probe means also comprises at least one resilient wire connected at one end thereof to said second cable and extending generally coaxially outwardly from the end of said flexible sleeve when extended by said sliding means; and measurement means mounted on said handle and cooperatively associated with said cable sliding means for measuring movement by said probe means.
Claim 3
Dependent Claim
21 words
An instrument according to claim 1 wherein each of said resilient wires includes an enlarged spherically-shaped element at its free end.
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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) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |