US3780740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intubation device and method of advancing a tube past the pylorus
Assignee: Individual
•
Filing: 1972-11-01
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Granted: 1973-12-25
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Expires: 1992-11-01
Abstract
Abstract An intubation device providing communication into a patient''s intestine. The device is formed of a soft flexible tube having a weighted front end, a soft flexible sleeve slidably mounted on the tube, and a collar mounted on the front end of the tube in registry with the sleeve. The front end of the device is inserted through a nasal passage of the patient and is advanced, by the coaction of the weighted plug and the advancement of the sleeve against the collar, to bring the plug and the front of the tube into the patient''s stomach up to the pylorus. The sleeve is then withdrawn with respect to the collar and tube, then readvanced carrying the tube so as to provide slack in the front of the tube so that the coaction of peristalsis and the weighted plug will effect a transpyloric passage of the plug and the leading end of the tube. A passage extends between the interior and exterior of the tube at or near the front of the tube to permit fluid to flow between the tube and the intestine.
Inventors
- 👤 J Rhea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:52
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0003; A61J15/0026; A61J15/0069; A61J15/0015; A61J15/0023
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
An intubation device comprising: a soft flexible tube having a weighted plug secured to its front end; a soft, flexible sleeve, of shorter length than the tube, slidably mounted on the tube; passage means between the interior of the tube proximate to its front end and the exterior of the tube; and a collar mounted on the front end of the tube in registry with the sleeve.
Claim 2
Dependent Claim
67 words
An intubation device comprising: a soft flexible tube having a weighted plug secured to its front end; a soft, flexible sleeve, of shorter length than the tube, slidably mounted on the tube; passage means between the interior of the tube proximate to its front end and the exterior of the tube; and a collar mounted on the front end of the tube in registry with the sleeve.
Claim 3
Dependent Claim
19 words
The device of claim 1 wherein said passage means comprises: at least one radial passage extending through the tube.
Claim 4
Dependent Claim
25 words
The device of claim 1 wherein said passage means comprises: an axial passage extending through the plug and communicating with the interior of the tube.
Claim 5
Dependent Claim
23 words
The device of claim 1 wherein the plug has a rearwardly extending threaded tail that is received in the front of the tube.
Claim 6
Dependent Claim
13 words
The device of claim 4 wherein said collar extends about the threaded tail.
Claim 7
Dependent Claim
18 words
The device of claim 1 further comprising: a funnel-shaped connector mounted to the back end of the tube.
Claim 8
Independent Claim
162 words
A method of advancing the leading end of a soft, flexible tube having a weighted plug at its front end past the pylorus of a patient comprising: slidably mounting a soft, flexible sleeve on the tube; providing a collar, mounted on the front end of the tube, that is in registry with the sleeve; inserting the front end of the tube, together with the plug and the front end of the sleeve, into a body passage of the patient; advancing the sleeve against the collar so that this advancement, in conjunction with the effect of the weighted plug, will cause the plug and the front of the tube to advance into the patient''s stomach up to the pylorus; and withdrawing the sleeve with respect to the collar so as to provide slack in the front of the tube; whereby the coaction of the weighted plug and persistalsis will effect passage of the plug and the front of the tube past the pylorus.
Claim 9
Independent Claim
162 words
A method of advancing the leading end of a soft, flexible tube having a weighted plug at its front end past the pylorus of a patient comprising: slidably mounting a soft, flexible sleeve on the tube; providing a collar, mounted on the front end of the tube, that is in registry with the sleeve; inserting the front end of the tube, together with the plug and the front end of the sleeve, into a body passage of the patient; advancing the sleeve against the collar so that this advancement, in conjunction with the effect of the weighted plug, will cause the plug and the front of the tube to advance into the patient''s stomach up to the pylorus; and withdrawing the sleeve with respect to the collar so as to provide slack in the front of the tube; whereby the coaction of the weighted plug and persistalsis will effect passage of the plug and the front of the tube past the pylorus.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |