Patent US4175564A successfully refreshed from Google Patents.
US4175564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal gastric tube insertion guide and method
Assignee: Individual
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Filing: 1978-03-13
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Granted: 1979-11-27
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Expires: 1998-03-13
Abstract
Abstract A guide for guiding a nasal gastric tube of preselected outside diameter into the esophagus and stomach of a patient for evacuation of stomach fluids. The guide comprises a tube formed with an end to end slit having an inside diameter greater than the nasal gastric tube outside diameter whereby the nasal gastric tube may be inserted into the guide tube through a guide tube end and subsequently extracted through the guide tube slit. In use, a nasal gastric tube is located in position within the nasopharynx with one tube end projecting out of the patient's nose and the other tube end projecting out of the patient's mouth. A longitudinally slit tubular guide is telescoped over the end of the nasal gastric tube projecting out of the patient's mouth. The free end of the tubular guide opposite the tubular guide end from which the nasal gastric tube emerges from the guide is inserted into the patient's esophagus. The tubular guide is then peeled from the nasal gastric tube by passing the nasal gastric tube through the tubular guide slit.
Inventors
- 👤 In S. Kwak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0003; A61J15/0026; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M25/0668
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A guide for guiding a nasal gastric tube of preselected outside diameter into the esophagus and stomach of a patient for evacuation of stomach fluids and with said guide comprising an arcuately shaped tube formed with an end to end slit and having an inside diameter greater than the nasal gastric tube outside diameter, and a pull tab mounted to the exterior of said guide tube radially opposite said slit, whereby the nasal gastric tube may be inserted into the guide tube through a guide tube end and subsequently extracted through the guide tube slit by pulling the nasal gastric tube and the guide pull tab apart as the arcuately shaped guide tube is introduced into the patient's mouth and esophagus.
Claim 2
Dependent Claim
121 words
A guide for guiding a nasal gastric tube of preselected outside diameter into the esophagus and stomach of a patient for evacuation of stomach fluids and with said guide comprising an arcuately shaped tube formed with an end to end slit and having an inside diameter greater than the nasal gastric tube outside diameter, and a pull tab mounted to the exterior of said guide tube radially opposite said slit, whereby the nasal gastric tube may be inserted into the guide tube through a guide tube end and subsequently extracted through the guide tube slit by pulling the nasal gastric tube and the guide pull tab apart as the arcuately shaped guide tube is introduced into the patient's mouth and esophagus.
Claim 3
Independent Claim
128 words
A method of guiding a nasal gastric tube into the esophagus and stomach of a patient for evacuation of stomach fluids comprising the steps of: (a) locating the nasal gastric tube in position within the nasopharynx with one tube end projecting out of the patient's nose and the other tube end projecting out of the patient's mouth; (b) telescoping a longitudinally slit tubular guide over the end of the nasal gastric tube projecting out of the patient's mouth; (c) inserting the free end of the tubular guide opposite the tubular guide end from which the nasal gastric tube emerges from the guide into the patient's esophagus; and (d) peeling the tubular guide from the nasal gastric tube by passing the nasal gastric tube through the tubular guide slit.
Claim 4
Independent Claim
128 words
A method of guiding a nasal gastric tube into the esophagus and stomach of a patient for evacuation of stomach fluids comprising the steps of: (a) locating the nasal gastric tube in position within the nasopharynx with one tube end projecting out of the patient's nose and the other tube end projecting out of the patient's mouth; (b) telescoping a longitudinally slit tubular guide over the end of the nasal gastric tube projecting out of the patient's mouth; (c) inserting the free end of the tubular guide opposite the tubular guide end from which the nasal gastric tube emerges from the guide into the patient's esophagus; and (d) peeling the tubular guide from the nasal gastric tube by passing the nasal gastric tube through the tubular guide slit.
Claim 5
Dependent Claim
41 words
A nasal gastric tube guide method in accordance with claim 2 wherein step (a) the nasal gastric tube is located within the nasopharynx by insertion into the nose, through the nasal passages, nasopharynx and pharynx and out of the patient's mouth.
Claim 6
Dependent Claim
28 words
A nasal gastric tube guide method in accordance with claim 2 wherein step (d) the tubular guide is peeled while being extracted from the patient's esophagus and mouth.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |