US4819619A — Device for inserting a nasal tube

Claim 1

Independent Claim 82 words

A device for introducing a nasal tube, comprising: an elongate, porous sleeve formed from a collapsible material which is non-self-sustaining and tends to collapse without internal support, the sleeve having proximal and distal ends with openings at said proximal and distal ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal ends; and a soft, blunt distal tip formed on said guiding member and extending beyond said distal end.

Claim 2

Independent Claim 82 words

A device for introducing a nasal tube, comprising: an elongate, porous sleeve formed from a collapsible material which is non-self-sustaining and tends to collapse without internal support, the sleeve having proximal and distal ends with openings at said proximal and distal ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal ends; and a soft, blunt distal tip formed on said guiding member and extending beyond said distal end.

Claim 3

Dependent Claim 39 words

The device of claim 1 further including stop means on said proximal end of said sleeve for preventing the entry of said proximal end into a nasal opening when said device is inserted into a nostril, distal tip first.

Claim 4

Dependent Claim 43 words

The device of claim 1 further including means for maintaining said distal opening closed and for yielding in response to a probing force exerted through said sleeve in a direction toward said distal end of said sleeve to open said distal end opening.

Claim 5

Dependent Claim 37 words

The device of claim 1 wherein said guiding member comprises a catheter with a distal end opening into said distal tip, a proximal end, and a fluid-conducting passageway connecting said distal and proximal ends of said catheter.

Claim 6

Dependent Claim 17 words

The device of claim 1 wherein said sleeve is formed from a material capable of conducting fluid.

Claim 7

Dependent Claim 34 words

The device of claim 1 wherein said distal tip is formed on said distal end of said sleeve and comprises a mass of woven permeable material for conducting fluid outwardly from said distal end.

Claim 8

Dependent Claim 30 words

The device of claim 1, wherein the arcuate guiding member has a curvature approaching 90 degrees for enabling the device to round the corner at the rear of the nasopharynx.

Claim 9

Independent Claim 97 words

A device for dilating a nasal passageway, comprising: an elongate, arcuate dilating member of generally solid construction formed from a resilient, porous material which is compressible when inserted into a nasal passageway, said dilating member having a central axis, a blunt, rounded distal end and a proximal end; a stop means formed on said proximal end for preventing the entry of said proximal end into a nasal opening when said dilating member is inserted into a nostril, distal end first; and an arcuate, relatively slender, pliable shaft embedded substantially in the central axis of said dilating member.

Claim 10

Independent Claim 97 words

A device for dilating a nasal passageway, comprising: an elongate, arcuate dilating member of generally solid construction formed from a resilient, porous material which is compressible when inserted into a nasal passageway, said dilating member having a central axis, a blunt, rounded distal end and a proximal end; a stop means formed on said proximal end for preventing the entry of said proximal end into a nasal opening when said dilating member is inserted into a nostril, distal end first; and an arcuate, relatively slender, pliable shaft embedded substantially in the central axis of said dilating member.

Claim 11

Dependent Claim 36 words

The device of claim 8 further including channel means for conducting fluid from a location proximal to said stop means to said dilating member when said dilating member is inserted into a nostril, distal end first.

Claim 12

Dependent Claim 63 words

The device of claim 9 wherein said pliable shaft is a catheter with proximal and distal openings and is disposed in said dilating member such that said proximal opening extends out of aid stop means while said distal opening is contained within said dilating member and said channel means is a fluid-conducting channel in said pliable shaft connecting said proximal and distal openings.

Claim 13

Independent Claim 161 words

An apparatus for introducing a tube into a dilated nostril, comprising a tube introducer, including: an elongate, porous sleeve formed from a collapsible material, and having proximal and distal ends with openings at said proximal and distal ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal openings; a soft, blunt distal tip formed on said guiding member and extending beyond said distal end opening; and a nostril dilator, including: a dilating means formed from a resilient, porous material and insertable into said sleeve for erecting said sleeve from a collapsed, compact configuration into a tubular configuration and for dilating a nasal passageway into which said tube introducer has ben inserted, said dilating means being compressible when inserted, through said sleeve, into a nasal passageway; and means for conducting fluid from outside a nostril opening to said dilating means when said dilating means is inserted into a nostril.

Claim 14

Independent Claim 161 words

An apparatus for introducing a tube into a dilated nostril, comprising a tube introducer, including: an elongate, porous sleeve formed from a collapsible material, and having proximal and distal ends with openings at said proximal and distal ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal openings; a soft, blunt distal tip formed on said guiding member and extending beyond said distal end opening; and a nostril dilator, including: a dilating means formed from a resilient, porous material and insertable into said sleeve for erecting said sleeve from a collapsed, compact configuration into a tubular configuration and for dilating a nasal passageway into which said tube introducer has ben inserted, said dilating means being compressible when inserted, through said sleeve, into a nasal passageway; and means for conducting fluid from outside a nostril opening to said dilating means when said dilating means is inserted into a nostril.

Claim 15

Dependent Claim 39 words

The apparatus of claim 11 further including stop means on said proximal end of said sleeve for preventing the entry of said proximal end into a nasal opening when said device is inserted into a nostril, distal tip first.

Claim 16

Dependent Claim 42 words

The apparatus of claim 11 further including means for maintaining said distal opening closed and for yielding in response to a probing force exerted through said sleeve in a direction toward said distal end of said sleeve to open said distal opening.

Claim 17

Dependent Claim 38 words

The apparatus of claim 11 wherein said arcuate guiding member comprises a catheter with a distal end opening into said distal tip, a proximal end, and a fluidconducting passageway connecting said distal and proximal ends of said catheter.

Claim 18

Dependent Claim 34 words

The apparatus of claim 14 wherein said distal tip is formed on said distal end of said catheter and comprises a mass of woven, permeable material for wicking fluid outwardly from said distal end.

Claim 19

Dependent Claim 99 words

The apparatus of claim 11, wherein said dilating means comprises: an elongate, arcuate dilating member formed from a resilient, porous material which is compressible when inserted into a nasal passageway, said dilating member having a central axis a blunt, rounded distal end and a proximal end; a stop means formed on said proximal end of said dilating member for preventing the entry of said proximal end into a nasal opening when said dilating member is inserted into a nostril, distal end first; and an arcuate, relatively slender, pliable shaft disposed substantially in the central axis of said dilating member.

Claim 20

Dependent Claim 45 words

The apparatus of claim 16 wherein said means for conducting fluid includes a channel means in said shaft for conducting fluid from a location proximal to said stop means to said dilating member when said dilating member is inserted into a nostril, distal end first.

Claim 21

Dependent Claim 63 words

The apparatus of claim 17 wherein said pliable shaft is a catheter with proximal an distal openings and is disposed in said dilating member such that said proximal opening extends out of said stop means while said distal opening is contained within said dilating member and said channel means is a fluid-conducting channel in said pliable shaft connecting said proximal and distal openings.

Claim 22

Dependent Claim 47 words

The device of claim 11, wherein the porous sleeve is of a material which is non-self-sustaining and which collapses without internal support, and the arcuate guiding member has a curvature approaching 90 degrees for enabling the apparatus to round the corner at the rear of the nasopharynx.

Claim 23

Independent Claim 97 words

A device for introducing a nasal tube, comprising: an elongate, porous sleeve formed from a collapsible material, the sleeve having opposite proximal and distal ends with openings at said opposite ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal ends; and a soft, blunt distal tip formed on said guiding member at the distal end of said sleeve and extending beyond said distal end opening, the distal tip comprising a mass of woven, permeable material for conducting fluid outwardly from said distal end.

Claim 24

Independent Claim 97 words

A device for introducing a nasal tube, comprising: an elongate, porous sleeve formed from a collapsible material, the sleeve having opposite proximal and distal ends with openings at said opposite ends; an elongate, relatively slender arcuate guiding member attached to said sleeve along a longitudinal sleeve dimension extending between said proximal and distal ends; and a soft, blunt distal tip formed on said guiding member at the distal end of said sleeve and extending beyond said distal end opening, the distal tip comprising a mass of woven, permeable material for conducting fluid outwardly from said distal end.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-04-10	1992-10-10	1993-04-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-04-10	1996-10-10	1997-04-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-04-10	2000-10-10	2001-04-11	$7700.00	Window Closed / Lapsed

Device for inserting a nasal tube

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