Patent US4960122A successfully refreshed from Google Patents.
US4960122A
Expired / Lapsed
US
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Endotracheal tube replacement obturator
Assignee: Individual
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Filing: 1988-05-06
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Granted: 1990-10-02
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Expires: 2008-05-06
Abstract
Abstract A system for replacing a tracheal tube uses an obturator that is inserted into the existing tube until it protrudes out from the distal end. The old tube is then slid out using the obturator as a guide. A new tube is inserted along the obturator until it has been properly inserted. The obturator is then removed. The obtuator has a flexible atraumatic tip at one end and a gripping section at the outer end. It is made from a flexible radiopaque material and has positioning marks to facilitate use with both endotracheal and tracheostomy tubes.
Inventors
- 👤 Irving Mizus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:58
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0402; A61M16/0429; A61M16/0434
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
Apparatus for replacing a tracheal tube comprising: a elongated flexible obturator having a length sufficient to be inserted in one end of a tracheal tube and protrude through the distal end thereof with an uninserted length protruding from the proximal end, said obturator having a width to permit passage through said tracheal tube and maintain an opening in a patient's trachea following withdrawal of said tracheal tube, said obturator further comprising; a cover and a core, said cover made from an elastomer or plastic material, a flexible soft atraumatic tip at an insertion end defined by an elongated tapering solely of said cover and gripping means at an opposite end, and at least one positioning mark to provide a point of reference when one tracheal tube is replaced by another using said obturator as an in-vivo guide.
Claim 2
Dependent Claim
137 words
Apparatus for replacing a tracheal tube comprising: a elongated flexible obturator having a length sufficient to be inserted in one end of a tracheal tube and protrude through the distal end thereof with an uninserted length protruding from the proximal end, said obturator having a width to permit passage through said tracheal tube and maintain an opening in a patient's trachea following withdrawal of said tracheal tube, said obturator further comprising; a cover and a core, said cover made from an elastomer or plastic material, a flexible soft atraumatic tip at an insertion end defined by an elongated tapering solely of said cover and gripping means at an opposite end, and at least one positioning mark to provide a point of reference when one tracheal tube is replaced by another using said obturator as an in-vivo guide.
Claim 3
Dependent Claim
37 words
The apparatus of claim 1, wherein said obturator comprises two positioning marks at spaced locations, one positioning mark being reference for an endotracheal tube replacement and a second mark being a reference for a tracheostomy tube replacement.
Claim 4
Dependent Claim
12 words
The apparatus of claim 1, wherein said obturator comprises a radiopaque material.
Claim 5
Dependent Claim
13 words
The apparatus of claim 3, wherein said radiopaque material is flexible metal wire.
Claim 6
Dependent Claim
15 words
The apparatus of claim 1, wherein said obturator core is made from a metallic material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-01 | 1994-04-02 | 1994-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-01 | 1998-04-02 | 1998-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-01 | 2002-04-02 | 2002-10-02 | $7700.00 | Window Closed / Lapsed |