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US5024220A Expired / Lapsed US ⏱️ 0.0 years remaining

Nasotracheal tube insertion connector

Assignee: The University of Texas System
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Filing: 1988-07-21
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Granted: 1991-06-18
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Expires: 2008-07-21
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Abstract

Abstract A flexible tube connector adapted for use in delivering a general anesthesia to patients via a nasotracheal tube is disclosed. More specifically, the present invention relates to a quick insertion nasotracheal tube connector which is designed to facilitate access to the oral cavity and face.

Inventors

  • 👤 W. Corbett Holmgreen
  • 👤 Leonid Bunegin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 21:31
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0463; A61M16/0461; A61M2210/00; A61M2210/06; A61M2210/0618; Y; Y10; Y10S; Y10S128/00; Y10S128/911; Y10S128/912

Claims Analysis

Total Claims: 35
Claim 1
Independent Claim 137 words
A connector for coupling a tracheal tube to a supply of anesthesia gas, comprising: a tubular body including along its length a flexible, peripherally integrious portion, said body defining a remote end having means for connecting said body to a supply of anesthesia gas, and a patient end terminating in an expandable, tapered tip to facilitate insertion of said body in a tracheal tube; and an expansion collar adapted to be inserted and secured totally within said tip and configured to increase the diameter of said tip when inserted in the tracheal tube, such that the insertion of said collar in said tip results in a secure, substantially airtight fit between said connector and said tube, said collar, when inserted totally within said tip, defining a first and second free end not used as a connecting means.
Claim 2
Dependent Claim 137 words
A connector for coupling a tracheal tube to a supply of anesthesia gas, comprising: a tubular body including along its length a flexible, peripherally integrious portion, said body defining a remote end having means for connecting said body to a supply of anesthesia gas, and a patient end terminating in an expandable, tapered tip to facilitate insertion of said body in a tracheal tube; and an expansion collar adapted to be inserted and secured totally within said tip and configured to increase the diameter of said tip when inserted in the tracheal tube, such that the insertion of said collar in said tip results in a secure, substantially airtight fit between said connector and said tube, said collar, when inserted totally within said tip, defining a first and second free end not used as a connecting means.
Claim 3
Dependent Claim 21 words
The connector of claim 1 wherein said tapered tip includes longitudinal slots or grooves peripherally spaced to define radially expandable segments.
Claim 4
Dependent Claim 15 words
The connector assembly of claim 1 further comprising a handle detachably attached to said collar.
Claim 5
Dependent Claim 20 words
The connector of claim 1 wherein the body and the collar are comprised of a radiographically transparent or translucent material.
Claim 6
Dependent Claim 43 words
The connector of claim 1 wherein the cross section of said collar is such that longitudinal movement of said collar into said tip results in an expansion of said tip to an outer diameter greater than the inner diameter of the tracheal tube.
Claim 7
Dependent Claim 21 words
The connector of claim 1 wherein said flexible, peripherally integrious portion comprises a plurality of corrugations radially disposed along said portion.
Claim 8
Dependent Claim 29 words
The connector of claim 1 wherein said flexible, peripherally integrious portion of the body has an outer diameter at least equal to the outer diameter of the patient end.
Claim 9
Dependent Claim 24 words
The connector of claim 1 wherein the expansion collar is fluted in shape, and has a larger diameter portion and a smaller diameter portion.
Claim 10
Dependent Claim 22 words
The connector of claim 8 wherein the smaller diameter portion of the collar is held in the patent end of said tip.
Claim 11
Dependent Claim 20 words
The connector of claim 1 wherein the flexible, peripherally integrious portion includes at least one radially disposed corrugation per millimeter.
Claim 12
Dependent Claim 32 words
The connector of claim 1 wherein the peripherally integrious portion of said body is sufficiently flexible to enable the body to assume an acute angle relative to itself without flow restriction therethrough.
Claim 13
Dependent Claim 82 words
A connector for coupling a nasotracheal tube to an anesthesia source, comprising: a tubular body having a patient end defining an expandable tapered tip, and a remote end adapted to be coupled to an anesthesia source; an expansion collar adapted to slidably fit within said tip and to increase the outer diameter of said tip sufficiently to form a substantially airtight fit between said connector and said tracheal tube; and means attachable to the collar to position said collar in said body.
Claim 14
Dependent Claim 82 words
A connector for coupling a nasotracheal tube to an anesthesia source, comprising: a tubular body having a patient end defining an expandable tapered tip, and a remote end adapted to be coupled to an anesthesia source; an expansion collar adapted to slidably fit within said tip and to increase the outer diameter of said tip sufficiently to form a substantially airtight fit between said connector and said tracheal tube; and means attachable to the collar to position said collar in said body.
Claim 15
Dependent Claim 13 words
The connector of claim 12 wherein the position means comprises a hollow plunger.
Claim 16
Dependent Claim 31 words
The connector of claim 12 wherein the tapered tip includes longitudinal slots or grooves formed along its length and spaced so as to define independent segments capable of undergoing radial expansion.
Claim 17
Dependent Claim 25 words
The connector of claim 12 further including a flexible, corrugated portion capable of enabling the body to be bent without radial constriction of said portion.
Claim 18
Dependent Claim 16 words
The connector of claim 12 further comprising a series of corrugations radially disposed along the body.
Claim 19
Dependent Claim 20 words
The connector of claim 12 wherein both the body and the collar are comprised of radiographically transparent or translucent materials.
Claim 20
Dependent Claim 34 words
The connector of claim 12 wherein longitudinal movement of said collar into said tip results in an expansion of said tip to an outer diameter greater than the inner diameter of said nasotracheal tube.
Claim 21
Dependent Claim 35 words
The connector of claim 12 wherein the expansion collar is fluted in shape, said collar having a larger and a smaller diameter portion, said smaller diameter portion held in the patient end of said tip.
Claim 22
Dependent Claim 18 words
The connector of claim 19 wherein said collar is hollow so as to allow for air flow therethrough.
Claim 23
Dependent Claim 118 words
A connector for coupling a nasotracheal tube to a supply of anesthesia gas, comprising: a tubular body including along its length a flexible, corrugated portion, said body defining a remote end having means for connecting said tube to a supply of anesthesia gas, and a patient end tapered and longitudinally slotted to facilitate the insertion of said body in said tube; and an expansion collar adapted to be inserted and seated totally within said tip, said collar defining a longitudinal bore so as to enable gas flow therethrough when said collar is secured totally within said tip, said collar, when seated totally within said tip, defining a first and second free end not used as a connecting means.
Claim 24
Dependent Claim 118 words
A connector for coupling a nasotracheal tube to a supply of anesthesia gas, comprising: a tubular body including along its length a flexible, corrugated portion, said body defining a remote end having means for connecting said tube to a supply of anesthesia gas, and a patient end tapered and longitudinally slotted to facilitate the insertion of said body in said tube; and an expansion collar adapted to be inserted and seated totally within said tip, said collar defining a longitudinal bore so as to enable gas flow therethrough when said collar is secured totally within said tip, said collar, when seated totally within said tip, defining a first and second free end not used as a connecting means.
Claim 25
Dependent Claim 15 words
The connector of claim 21 further including means to position said collar in said tip.
Claim 26
Dependent Claim 12 words
The connector of claim 22 wherein said means comprises a hollow stylet.
Claim 27
Dependent Claim 17 words
The connector of claim 21 wherein in said slots are spaced to define individual, radially expandable segments.
Claim 28
Dependent Claim 35 words
The connector of claim 21 wherein the longitudinal movement of said collar in said tip results in an expansion of said tip to an outer diameter greater than the inner diameter of the nasotracheal tube.
Claim 29
Dependent Claim 20 words
The connector of claim 21 wherein the body and the collar are comprised of a radiographically transparent or translucent material.
Claim 30
Dependent Claim 144 words
A connector for connecting a tracheal tube to a gas supply, comprising: a conduit having a first end adapted to be connected to a gas supply; a central section which is bendable, but peripherally integrious; and a second end which is radially enlargeable but reduced in internal diameter relative to said first and the central portion and also adapted to enter within a tracheal tube; a collar member adapted to enter the second end of the conduit, to move through the central section, and to squeeze the second end radially outward to seat against an inner wall surface of the tracheal tube and resist relative axial movement between the tracheal tube, the second end, and the collar member, said collar member when inserted totally within said second end of said conduit defining a first and second free end not used as a connecting means.
Claim 31
Dependent Claim 144 words
A connector for connecting a tracheal tube to a gas supply, comprising: a conduit having a first end adapted to be connected to a gas supply; a central section which is bendable, but peripherally integrious; and a second end which is radially enlargeable but reduced in internal diameter relative to said first and the central portion and also adapted to enter within a tracheal tube; a collar member adapted to enter the second end of the conduit, to move through the central section, and to squeeze the second end radially outward to seat against an inner wall surface of the tracheal tube and resist relative axial movement between the tracheal tube, the second end, and the collar member, said collar member when inserted totally within said second end of said conduit defining a first and second free end not used as a connecting means.
Claim 32
Dependent Claim 39 words
The connector of claim 27 wherein an outer surface of the collar member and an inner surface of the second section are configured to inter-engage one another when in a seated relation so as to resist relative axial movement.
Claim 33
Dependent Claim 11 words
The conduit of claim 27 wherein the central section is bellows-shaped.
Claim 34
Dependent Claim 24 words
The conduit of claim 27 further comprising a stylet attachable to the collar member and adapted to move the collar member within the conduit.
Claim 35
Dependent Claim 34 words
The conduit of claim 27 wherein the second end has a plurality of spaced, longitudinally disposed slots extending from the tip of the second end to divide the second end into longitudinally disposed segments.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-06-17 1994-12-17 1995-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-06-17 1998-12-17 1999-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-06-17 2002-12-17 2003-06-18 $7700.00 Window Closed / Lapsed

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