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US4481947A Expired / Lapsed US ⏱️ 0.0 years remaining

Endotracheal tube retractor

Assignee: Individual
•
Filing: 1980-02-14
•
Granted: 1984-11-13
•
Expires: 2000-02-14
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Abstract

Abstract An endotracheal tube retractor used to facilitate endotracheal intubation and endotracheal tube placement is provided with an angled handle and a scoop-shaped blade for engaging and manipulating an endotracheal tube. The retractor may be used in both the direct and blind orotracheal and nasotracheal intubation techniques.

Inventors

  • 👤 Martin H. Chester

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 00:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61B; A61B17/00; A61B17/02

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 239 words
An endotracheal tube retractor comprising: (a) a lower blade portion having a scoop-like portion for engagement with an endotracheal tube, said blade being formed with smooth, blunt edges and having a wider portion at the bottom thereof, said bottom being formed with concave curvature, (b) a middle portion connected to said blade at the upper end thereof, said middle portion being of generally cylindrical shape and tapering downwardly toward said blade portion, (c) a handle portion connected at the lower end thereof to the upper end of said middle portion, said handle portion being oriented at an acute angle with respect to the longitudinal axis of said middle portion, said handle and said scoop-like portion of said blade extending away from said longitudinal axis of said middle portion in opposite directions, said handle portion being generally in the form of an elongated rectangular solid extending upwardly and away from said middle portion in a smooth continuous manner, (d) said handle portion and a top section of said middle portion together forming a gripping portion engageable between several fingers of one hand, such that, when gripped, neither the fingers nor the hand extend substantially beyond a plane defined by a front face of said middle portion, and wherein said handle includes a stabilizing support comprising at least one flat surface adapted to lie substantially along the length of a finger of the user, thereby allowing precise manipulation of the retractor.
Claim 2
Dependent Claim 239 words
An endotracheal tube retractor comprising: (a) a lower blade portion having a scoop-like portion for engagement with an endotracheal tube, said blade being formed with smooth, blunt edges and having a wider portion at the bottom thereof, said bottom being formed with concave curvature, (b) a middle portion connected to said blade at the upper end thereof, said middle portion being of generally cylindrical shape and tapering downwardly toward said blade portion, (c) a handle portion connected at the lower end thereof to the upper end of said middle portion, said handle portion being oriented at an acute angle with respect to the longitudinal axis of said middle portion, said handle and said scoop-like portion of said blade extending away from said longitudinal axis of said middle portion in opposite directions, said handle portion being generally in the form of an elongated rectangular solid extending upwardly and away from said middle portion in a smooth continuous manner, (d) said handle portion and a top section of said middle portion together forming a gripping portion engageable between several fingers of one hand, such that, when gripped, neither the fingers nor the hand extend substantially beyond a plane defined by a front face of said middle portion, and wherein said handle includes a stabilizing support comprising at least one flat surface adapted to lie substantially along the length of a finger of the user, thereby allowing precise manipulation of the retractor.
Claim 3
Dependent Claim 21 words
The endotracheal tube retractor as defined in claim 1, wherein said handle portion is longitudinally tapered toward the upper end thereof.
Claim 4
Dependent Claim 23 words
The endotracheal tube retractor as defined in claim 2, wherein said generally cylindrical middle portion is provided with a plurality of chordal flats.

References Cited (Backward Citations)

SU182293A1 Cited
US3701348A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-11-13 1988-05-14 1988-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-11-13 1992-05-14 1992-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-11-13 1996-05-14 1996-11-13 $7700.00 Window Closed / Lapsed

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