US4949716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal intubation adjunct
Assignee: MEDICAL DEVICES Inc
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Filing: 1989-11-28
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Granted: 1990-08-21
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Expires: 2009-11-28
Abstract
Abstract Disclosed is a hand-held medical device that attaches a wide range of nasally placed airway tubes to afford better control of said airway tubes, manipulation of said airway tubes by rotation and curvature the latter of which is provided by a soft, flexible manipulator containing a spring which is attached at its distal end by a braided wire the pulling of which will cause flexion of the manipulator and said airway tube that surrounds it. The device additionally allows for patient inspiration and expiration to pass unrestricted through the body of the device deflecting one-way valves positioned in clear tubes on the sides of the device allowing for visual confirmation of proper final placement of said airway tube. A stethoscope headset attached to the device provides an audible reference for guiding said airway tube and affords an additional reference to confirm proper final placement of said airway tube.
Inventors
- 👤 David Chenoweth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:58
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0402; A61M16/0418; A61M16/0461
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
163 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough and a second opening extending into said body to connect to said first opening; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening; and means attached to said second opening for detecting breathing sounds, means for attaching said manipulator to said body, said means for attaching the manipulator including a slide mounted to said manipulator; a slide track located on said body parallel to said first opening; and means for attaching said slide to said slide track; whereby said manipulator may be adjusted to a plurality of positions to accommodate a plurality of airway tube lengths.
Claim 2
Dependent Claim
163 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough and a second opening extending into said body to connect to said first opening; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening; and means attached to said second opening for detecting breathing sounds, means for attaching said manipulator to said body, said means for attaching the manipulator including a slide mounted to said manipulator; a slide track located on said body parallel to said first opening; and means for attaching said slide to said slide track; whereby said manipulator may be adjusted to a plurality of positions to accommodate a plurality of airway tube lengths.
Claim 3
Dependent Claim
51 words
The instrument of claim 1 wherein said tube attachment means further comprises: a first one way valve connected to allow air to be exhaled by the patient through the airway tube; and a second one way valve connected to allow air to be inhaled by the patient through the airway tube.
Claim 4
Dependent Claim
26 words
The instrument of claim 2 wherein said first one way valve is mounted to direct exhaled air in a direction substantially perpendicular to said first opening.
Claim 5
Dependent Claim
25 words
The instrument of claim 2 wherein said second one way valve is mounted to receive air in a direction substantially perpendicular to said first opening.
Claim 6
Dependent Claim
40 words
The instrument of claim 1 wherein said manipulator means further comprises: adjustable projection means extending into the airway tube for flexing the airway tube; and handle means for allowing the operator of said instrument to control said adjustable projection means.
Claim 7
Dependent Claim
116 words
The instrument of claim 5 wherein said adjustable projection means further comprises: a soft tube having a top opening at one end thereof, a closed tip at an other end thereof, and a hollow center extending from said top opening to said tip; a spring extending from said top opening toward said tip and having a distal end located substantially at said tip; constricting means for pulling said distal end of said spring toward said top opening, said constricting means being attached to said spring at said distal end, and extending through said soft tube to said top opening to attach to said handle means; whereby said adjustable projection means is flexed by adjusting said handle.
Claim 8
Dependent Claim
12 words
The instrument of claim 6 wherein said constricting means comprises a cable.
Claim 9
Dependent Claim
15 words
The instrument of claim 1 wherein said means for detecting breathing sounds comprises a stethoscope.
Claim 10
Dependent Claim
326 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough and a second opening extending into said body to connect to said first opening; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body comprising a connecting fitting for receiving the airway tube, said fitting having a central opening for cooperating with said first opening, a first one way valve connected to said central opening for allowing air exhaled by the patient through the airway tube to exit said instrument in a direction away from said first opening, and a second one way valve connected to said central opening for allowing air inhaled by the patient through the airway tube to enter said instrument; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening; said manipulator means further comprises an adjustable projection means extending into the airway tube for flexing the airway tube; and handle means for allowing the operator of said instrument to control said adjustable projection means, the adjustable projection means further comprises a soft tube having a top opening at one end thereof, a closed tip at an other end thereof, and a hollow center extending from said top opening toward said tip; a spring extending from said top opening toward said tip and having a distal end located substantially at said tip; constricting means for pulling said distal end of said spring toward said top opening, said constricting means being attached to said spring at said distal end, and extending through said soft tube and said top opening to attach to said handle means; whereby said adjustable projection means is flexed by adjusting said handle; and means attached to said second opening for detecting breathing sounds.
Claim 11
Dependent Claim
326 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough and a second opening extending into said body to connect to said first opening; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body comprising a connecting fitting for receiving the airway tube, said fitting having a central opening for cooperating with said first opening, a first one way valve connected to said central opening for allowing air exhaled by the patient through the airway tube to exit said instrument in a direction away from said first opening, and a second one way valve connected to said central opening for allowing air inhaled by the patient through the airway tube to enter said instrument; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening; said manipulator means further comprises an adjustable projection means extending into the airway tube for flexing the airway tube; and handle means for allowing the operator of said instrument to control said adjustable projection means, the adjustable projection means further comprises a soft tube having a top opening at one end thereof, a closed tip at an other end thereof, and a hollow center extending from said top opening toward said tip; a spring extending from said top opening toward said tip and having a distal end located substantially at said tip; constricting means for pulling said distal end of said spring toward said top opening, said constricting means being attached to said spring at said distal end, and extending through said soft tube and said top opening to attach to said handle means; whereby said adjustable projection means is flexed by adjusting said handle; and means attached to said second opening for detecting breathing sounds.
Claim 12
Dependent Claim
12 words
The instrument of claim 9 wherein said constricting means comprises a cable.
Claim 13
Dependent Claim
15 words
The instrument of claim 9 wherein said means for detecting breathing sounds comprises a stethoscope.
Claim 14
Dependent Claim
15 words
The instrument of claim 9 wherein said second opening is connected to said central opening.
Claim 15
Dependent Claim
311 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body comprising a connecting fitting for receiving the airway tube, said fitting having a central opening for cooperating with said first opening, a first one way valve connected to said central opening for allowing air exhaled by the patient through the airway tube to exit said instrument in a direction away from said first opening, and a second one way valve connected to said central opening for allowing air inhaled by the patient through the airway tube to enter said instrument; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening, said manipulator means comprising handle means for allowing the operator of said instrument to control said maniplator means, said handle means being slidably attached to said body, adjustable projection means extending into the airway tube for flexing the airway tube comprising a soft tube having a top opening at one end thereof, a closed tip at an other end thereof, and a hollow center extending from said top opening to said tip, said soft tube being attached to said handle a spring having a first end attached to said top opening and having a distal end located substantially at said tip, cable means for pulling said distal end of said spring toward said top opening, said cable means being attached to said spring at said distal end, and extending through said soft tube and said top opening to attach to said handle means; and stethoscope means attached to said central opening for detecting breathing sounds.
Claim 16
Dependent Claim
311 words
An instrument for allowing an operator to insert a nasally placed airway tube into a patient, said instrument comprising: a body having a first opening extending therethrough; tube attachment means for attaching the airway tube to said body and for allowing the airway tube to cooperate with said first opening in said body comprising a connecting fitting for receiving the airway tube, said fitting having a central opening for cooperating with said first opening, a first one way valve connected to said central opening for allowing air exhaled by the patient through the airway tube to exit said instrument in a direction away from said first opening, and a second one way valve connected to said central opening for allowing air inhaled by the patient through the airway tube to enter said instrument; manipulator means for flexing the airway tube, said manipulator means being insertable into said body and the airway tube through said first opening, said manipulator means comprising handle means for allowing the operator of said instrument to control said maniplator means, said handle means being slidably attached to said body, adjustable projection means extending into the airway tube for flexing the airway tube comprising a soft tube having a top opening at one end thereof, a closed tip at an other end thereof, and a hollow center extending from said top opening to said tip, said soft tube being attached to said handle a spring having a first end attached to said top opening and having a distal end located substantially at said tip, cable means for pulling said distal end of said spring toward said top opening, said cable means being attached to said spring at said distal end, and extending through said soft tube and said top opening to attach to said handle means; and stethoscope means attached to said central opening for detecting breathing sounds.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |