US5389074A — Body insertion tube with anesthetic jacket

Claim 1

Independent Claim 171 words

A device engageable with a source of anesthetic fluid, the device being advanceable into a patient for establishing a pathway for fluid communication through the patient's pharynx while reducing patient discomfort, comprising: a source of pressure; an elongated flexible tube defining a lumen in fluid communication with the source of pressure, the tube having a distal segment positionable in a body passage of the patient that is distal to the pharynx, the tube being made of plastic such that the tube has sufficient strength to substantially prevent deformation of the tube when the source of pressure is activated; and a jacket surroundingly engaged with the distal segment of the tube along at least five centimeters (5 cm) of the distal segment, the jacket being formed with a plurality of perforations along its entire length and circumference, wherein anesthetic fluid from the source of anesthetic fluid can be directed out of the perforations of the jacket onto the body passage of the patient to anesthetize a substantial portion of the body passage.

Claim 2

Independent Claim 171 words

A device engageable with a source of anesthetic fluid, the device being advanceable into a patient for establishing a pathway for fluid communication through the patient's pharynx while reducing patient discomfort, comprising: a source of pressure; an elongated flexible tube defining a lumen in fluid communication with the source of pressure, the tube having a distal segment positionable in a body passage of the patient that is distal to the pharynx, the tube being made of plastic such that the tube has sufficient strength to substantially prevent deformation of the tube when the source of pressure is activated; and a jacket surroundingly engaged with the distal segment of the tube along at least five centimeters (5 cm) of the distal segment, the jacket being formed with a plurality of perforations along its entire length and circumference, wherein anesthetic fluid from the source of anesthetic fluid can be directed out of the perforations of the jacket onto the body passage of the patient to anesthetize a substantial portion of the body passage.

Claim 3

Dependent Claim 50 words

The device of claim 1, wherein the jacket has distal and proximal end portions each attached to the tube, and the end portions are faired into the surface of the tube to facilitate easily advancing the distal segment of the tube with jacket in the body passage of the patient.

Claim 4

Dependent Claim 42 words

The device of claim 1, wherein the body passage is the trachea, the tube is an endotracheal (ET) tube, and the device further comprises an inflatable cuff positioned around a portion of the distal segment of the tube distal to the jacket.

Claim 5

Dependent Claim 15 words

The device of claim 3, wherein the jacket includes a cuff extension surrounding the cuff.

Claim 6

Dependent Claim 52 words

The device of claim 3, wherein the jacket comprises a distal extension located distal of the cuff, a proximal section located proximal to the cuff, and a connecting lumen extending therebetween for establishing a passageway for anesthetic communication from the proximal section of the jacket to the distal section of the jacket.

Claim 7

Dependent Claim 65 words

The device of claim 3, wherein the tube defines a lumen, the source of pressure is a respiratory support system, the tube includes a hollow connector engageable with the respiratory support system, and wherein the tube is made of a plastic material sufficiently strong to prevent expansion of the lumen when oxygen is directed from the support system through the lumen into the patient's lungs.

Claim 8

Dependent Claim 42 words

The device of claim 6, wherein the jacket has a distal end positioned on the tube adjacent the cuff and a proximal end, and the distance between the ends of the jacket is between approximately five centimeters and fifteen centimeters (5-15 cm).

Claim 9

Dependent Claim 20 words

The device of claim 7, wherein the distance between the ends of the jacket is approximately seven centimeters (7 cm).

Claim 10

Dependent Claim 78 words

The device of claim 1, wherein the body passage includes the nasopharynx, pharynx, and esophagus and the tube is a nasogastric (NG) tube, and the NG tube includes a stomach segment extending distally away from the distal segment, wherein the stomach segment is formed with a plurality of axially-spaced openings for aspirating stomach fluid therethrough, and the tube is made of a plastic material sufficiently strong to prevent collapse of the lumen when stomach fluids are aspirated therethrough.

Claim 11

Dependent Claim 56 words

The device of claim 9, further comprising a hollow connector having a proximal end engageable with an NG support system tube, a distal end engageable with the NG tube, and a midpoint therebetween, wherein the connector is radially tapered inwardly from the midpoint to each end to facilitate engaging the NG tube and support system tube.

Claim 12

Dependent Claim 32 words

The device of claim 10, wherein the NG tube includes a main lumen in communication with the openings of the stomach segment and a vacuum break lumen in communication with the openings.

Claim 13

Dependent Claim 182 words

An endotracheal (ET) tube assembly, comprising: a source of respiratory oxygen; an ET tube defining a lumen in fluid communication with the source of oxygen and having a distal segment; an inflatable cuff positioned around the distal segment of the ET tube for establishing a fluid seal between the tube and the trachea when the cuff is inflated with fluid; and a jacket surroundingly engaged with the distal segment of the ET tube and having a plurality of perforations along its entire length and circumference, wherein the jacket has a distal end positioned on the tube adjacent the cuff and a proximal end, wherein the distance between the ends of the jacket is between five centimeters and fifteen centimeters (5-15 cm), the distal segment of the ET tube being positionable in a patient's pharynx to establish a pathway for fluid communication between the source of oxygen and the patient's lungs, and wherein the ET tube is made of material sufficiently strong to prevent swelling of the ET tube when oxygen from the source is directed through the lumen to the patient's lungs.

Claim 14

Dependent Claim 182 words

An endotracheal (ET) tube assembly, comprising: a source of respiratory oxygen; an ET tube defining a lumen in fluid communication with the source of oxygen and having a distal segment; an inflatable cuff positioned around the distal segment of the ET tube for establishing a fluid seal between the tube and the trachea when the cuff is inflated with fluid; and a jacket surroundingly engaged with the distal segment of the ET tube and having a plurality of perforations along its entire length and circumference, wherein the jacket has a distal end positioned on the tube adjacent the cuff and a proximal end, wherein the distance between the ends of the jacket is between five centimeters and fifteen centimeters (5-15 cm), the distal segment of the ET tube being positionable in a patient's pharynx to establish a pathway for fluid communication between the source of oxygen and the patient's lungs, and wherein the ET tube is made of material sufficiently strong to prevent swelling of the ET tube when oxygen from the source is directed through the lumen to the patient's lungs.

Claim 15

Dependent Claim 29 words

The ET tube assembly of claim 12, further comprising a source of anesthetic liquid in fluid communication with the jacket for anesthetizing a substantial portion of the body passage.

Claim 16

Dependent Claim 46 words

The assembly of claim 13, wherein the jacket has distal and proximal end portions each attached to the tube, and the end portions are faired into the surface of the tube to facilitate easily advancing the tube with jacket in the body passage of the patient.

Claim 17

Dependent Claim 15 words

The assembly of claim 14, wherein the jacket includes a cuff extension surrounding the cuff.

Claim 18

Dependent Claim 52 words

The assembly of claim 14, wherein the jacket comprises a distal extension located distal of the cuff, a proximal section located proximal to the cuff, and a connector tube extending therebetween for establishing a passageway for anesthetic communication from the proximal section of the jacket to the distal section of the jacket.

Claim 19

Dependent Claim 55 words

The assembly of claim 14, wherein the tube defines a lumen and includes a hollow connector engageable with a respiratory support system, and wherein the tube is made of a plastic material sufficiently strong to prevent expansion of the lumen when oxygen is directed from the support system through the lumen into the patient's lungs.

Claim 20

Dependent Claim 132 words

A nasogastric (NG) tube assembly, comprising: a source of vacuum for aspirating fluid from a patient's stomach; an NG tube having a stomach segment formed with a plurality of axially-spaced openings for aspirating stomach fluid therethrough and a proximal segment defining a lumen in fluid communication with the source of vacuum; and a jacket surroundingly engaged with the NG tube proximal to the axially-spaced openings and having a plurality of perforations along its entire length and circumference through which anesthetic can be directed against substantially all of the patient's nasal passages, pharynx, and proximal portion of the esophagus in which the assembly is intubated, wherein the tube is made of a plastic material sufficiently strong to prevent collapse of the lumen when the source of vacuum is activated to aspirate stomach fluid.

Claim 21

Dependent Claim 132 words

A nasogastric (NG) tube assembly, comprising: a source of vacuum for aspirating fluid from a patient's stomach; an NG tube having a stomach segment formed with a plurality of axially-spaced openings for aspirating stomach fluid therethrough and a proximal segment defining a lumen in fluid communication with the source of vacuum; and a jacket surroundingly engaged with the NG tube proximal to the axially-spaced openings and having a plurality of perforations along its entire length and circumference through which anesthetic can be directed against substantially all of the patient's nasal passages, pharynx, and proximal portion of the esophagus in which the assembly is intubated, wherein the tube is made of a plastic material sufficiently strong to prevent collapse of the lumen when the source of vacuum is activated to aspirate stomach fluid.

Claim 22

Dependent Claim 18 words

The assembly of claim 18, further comprising: a source of anesthetic liquid in fluid communication with the jacket.

Claim 23

Dependent Claim 51 words

The assembly of claim 19, wherein the jacket has distal and proximal end portions each attached to the NG tube, and the end portions are faired into the surface of the tube to facilitate easily advancing the distal segment of the tube with jacket in a body passage of the patient.

Claim 24

Dependent Claim 54 words

The assembly of claim 20, further comprising a hollow connector having a proximal end engageable with an NG support system tube, a distal end engageable with the tube, and a midpoint therebetween, wherein the connector is radially tapered inwardly from the midpoint to each end to facilitate engaging the tube and support system tube.

Claim 25

Dependent Claim 31 words

The device of claim 21, wherein the tube includes a main lumen in communication with the openings of the stomach segment and a vacuum break lumen in communication with the openings.

Claim 26

Independent Claim 183 words

A method for establishing a pathway for fluid communication from a patient's throat to a body passage of the patient in communication with the throat, while minimizing patient discomfort, comprising the steps of: (a) providing a body insertion tube made of plastic and defining a lumen, the body insertion tube being sufficiently strong to substantially prevent deformation of the body insertion tube when the body insertion tube is pressurized or evacuated; (b) surrounding a segment of the tube with a perforated anesthetic jacket, the jacket having a proximal end and a distal end axially spaced from the proximal end a distance of at least five centimeters (5 cm), such that when the tube is properly positioned, anesthetic fluid can be directed through the perforations against substantially all of the patient's throat tissue which is adjacent the tube; (c) advancing the tube into the body passage; (d) engaging the tube with a source of pressure such that the lumen of the tube is in fluid communication with the source; and (e) directing anesthetic fluid through the perforations of the jacket to anesthetize the throat.

Claim 27

Independent Claim 183 words

A method for establishing a pathway for fluid communication from a patient's throat to a body passage of the patient in communication with the throat, while minimizing patient discomfort, comprising the steps of: (a) providing a body insertion tube made of plastic and defining a lumen, the body insertion tube being sufficiently strong to substantially prevent deformation of the body insertion tube when the body insertion tube is pressurized or evacuated; (b) surrounding a segment of the tube with a perforated anesthetic jacket, the jacket having a proximal end and a distal end axially spaced from the proximal end a distance of at least five centimeters (5 cm), such that when the tube is properly positioned, anesthetic fluid can be directed through the perforations against substantially all of the patient's throat tissue which is adjacent the tube; (c) advancing the tube into the body passage; (d) engaging the tube with a source of pressure such that the lumen of the tube is in fluid communication with the source; and (e) directing anesthetic fluid through the perforations of the jacket to anesthetize the throat.

Claim 28

Independent Claim 169 words

A device advanceable into a patient for establishing a pathway for fluid communication through the patient's pharynx while reducing patient discomfort, comprising: a source of anesthetic fluid; a source of pressure; an elongated flexible tube defining a lumen and having a distal segment positionable in a body passage of the patient that is distal to the pharynx and a proximal segment configured for establishing fluid communication between the source of pressure and the lumen of the tube, the tube having sufficient strength to substantially prevent deformation of the tube when the source of pressure is activated; and a jacket surroundingly engaged with the distal segment of the tube along at least five centimeters (5 cm) of the length of the distal segment, the jacket being formed with a plurality of perforations along its entire length and circumference, wherein anesthetic fluid from the source can be directed out of the perforations of the jacket onto the body passage of the patient to anesthetize a substantial portion of the body passage.

Claim 29

Independent Claim 169 words

A device advanceable into a patient for establishing a pathway for fluid communication through the patient's pharynx while reducing patient discomfort, comprising: a source of anesthetic fluid; a source of pressure; an elongated flexible tube defining a lumen and having a distal segment positionable in a body passage of the patient that is distal to the pharynx and a proximal segment configured for establishing fluid communication between the source of pressure and the lumen of the tube, the tube having sufficient strength to substantially prevent deformation of the tube when the source of pressure is activated; and a jacket surroundingly engaged with the distal segment of the tube along at least five centimeters (5 cm) of the length of the distal segment, the jacket being formed with a plurality of perforations along its entire length and circumference, wherein anesthetic fluid from the source can be directed out of the perforations of the jacket onto the body passage of the patient to anesthetize a substantial portion of the body passage.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1998-02-13	1998-08-15	1999-02-14	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2002-02-13	2002-08-15	2003-02-14	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2006-02-13	2006-08-15	2007-02-14	$7700.00	Window Closed / Lapsed

Body insertion tube with anesthetic jacket

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