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Numéro de publicationUS3780740 A
Type de publicationOctroi
Date de publication25 déc. 1973
Date de dépôt1 nov. 1972
Date de priorité1 nov. 1972
Numéro de publicationUS 3780740 A, US 3780740A, US-A-3780740, US3780740 A, US3780740A
InventeursRhea J
Cessionnaire d'origineRhea J
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Intubation device and method of advancing a tube past the pylorus
US 3780740 A
Résumé
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 The sleeve is then withdrawn with respect to the collar and tube, then readvanced carrying the tube so as to provide slack in the front of the tube so that the coaction of peristalsis and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.
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Description  (Le texte OCR peut contenir des erreurs.)

United States Patent [191 Rhea [ Dec. 25, 1973 1 INTUBATION DEVICE AND METHOD OF ADVANCING A TUBE PAST THE PYLORUS [76] Inventor: James W. Rhea, 501 Alabama St.,

Bristol, Tenn. 37620 [22] Filed: Nov. 1, 1972 [21] Appl. No.: 302,808

52 U.S.-Cl. 128/350 R, 128/276 51 int. (11.; ..A61m 25/00 58 Field of Search ..128/276278,240,241,

Primary ExaminerDalton L. Truluck Attorney-D. Paul Weaver et a1.

[5 7 ABSTRACT An intubation device providing communication into a patients 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 patients 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.

7 Claims, 4 Drawing Figures INTUBATION DEVICE AND METHOD OF ADVANCING A TUBE PAST THE PYLORUS BACKGROUND OF THE INVENTION U. S. Pat. Nos. 1,736,182, 2,356,659, 2,596,947, and 3,189,031 show tubes which can be inserted into a patients stomach or intestine to provide communication with the stomach or intestine for feeding or aspirating purposes. However, particularly with infants, difficulties arise in enabling the tube to be placed in the duodenum or jejunum, such placement being desirable for the following reasons:

a. Liquid deposited in the stomachs of certain infants is likely to be vomited or regurgitated which puts the infant at risk of aspirating or inhaling the liquid, such aspiration having a tendency to cause choking, asphyxia, pneumonia or other disease in a weak or ill infant;

b. The pyloric valve between the stomach and the duodenum provides a substantial barrier to reflux of liquid delivered transpylorically into the duodenum or the jejunum;

c. The jejunum is capable of rapidly absorbing certain liquids in contrast to the stomach which acts more as a reservoir and absorbs very little except alcohol.

SUMMARY OF THE INVENTION This invention is concerned with an intubation device which enables a feeding or aspirating tube to be readily inserted past the pyloric valve into the intestine and with a method of advancing the leading end of the tube into the intestine. The tube, which is made of a soft flexible material, has a weighted leading end and a sleeve, also made of a soft flexible material, is slidably mounted on the tube. A collar is mounted on the front of the tube in registry with the sleeve. At least one passage extends between the interior and exterior of the tube at or near the front of the tube to provide communication between the tube and the lumen of the intestine. The leading ends of the tube and the sleeve, and the plug, are inserted into a patients body passage, such as a nasal passage, and the sleeve is advanced against the collar to thus, in coaction with the weight ofthe plug, bring the plug and the front of the tube into the patients stomach up to the pylorus. The sleeve is then withdrawn with respect to the collar and tube, and then is readvanced carrying the tube to provide slack at the front of the tube so that the coaction of the weighted plug and peristalsis will effect a transpyloric passage of the plug and the leading end of the tube into the intestine.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a section of the intubation device;

FIG. 2 is a representation of the intubation device in a patient;

FIG. 3 is a section of a portion of a variant of the intubation device; and

FIG. 4 is a view of a variant of a plugof the intubation device.

DESCRIPTION OF THE PREFERRED EMBODIMENT Number of the intubation device 11 designates a soft, flexible limp tube that may be made of silicone rubber or plastic. A plug 12 is secured to the front end of the tube 10 by means of a tapered threaded tail l4 on the back end of the plug that is inserted into and distends the front end of the tube 10. The plug 12 has a tapered blunt nose 16 and is made of a relatively dense non-toxic material-such as gold or platinum. A collar 18, which may be made of the same material as the plug 12 or, alternatively, may be made of a plastic similar to that of the sleeve 20 described below, is fitted over the front end of the tube 10 so as to extend about the periphery of the front end of the tube 10 outwardly of the back end 14 of the plug 12. A plurality of radial passages 22 extend through the tube 10 near the front end of the tube. The sleeve 20, which is made of soft flexible material such as silicone rubber or plastic, is of shorter length then, and extends about the periphery of the tube 10 so asto be slidable on the tube 10 and so as to be registry with the collar 18. A removable plastic funnel-shaped connector 24 is mounted to the back end of the tube 10.

In use, the tube 10 is dusted with a suitable lubricant, such as vpowdered baking soda, to provide lubrication between the tube and the sleeve. The sleeve 20 is moved along the tube 10 so that the front end of the sleeve abuts the collar 18. A suitable lubricant, such as lubricatingjelly is applied externally of the plug 12, the collar 18 and the sleeve 20 to facilitate their movement internally of the patient and the intubation device 11 is advanced, plug first, into a nasal passage of a patient 26 (FIG. 2), who is, if possible, in a 60 sitting position. The intubation device 11 is advanced through the patients nose, throat and esophagus until the plug 12 reaches the entrance to the stomach 28, at which point the patient is put in a horizontal position and turned on his right side. The intubation device is then further advanced until the front end 16 of the plug 12 approaches the pylorus 30. This advance of the intubation device 11 up to the pylorus 30 is effected due to the weight of the plug 12 at the front end of the intubation device 11 and also due to the operator manipulating the portion of the sleeve 20 that projects from the nasal passage by advancing the sleeve 20 in abutment with the collar 18 which advances the collar, together with the plug 12 and the tube 10 further into the patients body.

When the plug 12 has reached a position near the pylorus 30, the operator alternatively withdraws the sleeve 20 with respect to the tube 10 and the collar 18 and advances the sleeve 20 and the tube 10 to provide slack at the front end of the tube to thereby enable the weight of the plug 12 and peristalsis to effect passage of the plug 12 and the front portion of the tube 10 past the pylorus and into the duodenum 32.

The passage of the intubation device from the nasal passage up to the pylorus is facilitated by the tapered blunt end 16 of the weighted plug 12 and the soft, flexible nature of the tube 10 and the collar 20. The transpyloric passage of the plug 12 and the front end of the tube 10 is facilitated by the tapered blunt end 16 of the weighted plug 12 and the soft, flexible nature of the tube 10.

When the intubation device 11 is in position in the body with the plug 12 and the front end of the tube 10 past the pylorus in either the duodenum 32 or beyond the duodenum in the jejunum, the intubation device may be used as a feeding tube for delivering nutrient liquids and/or gases through the tube 10 and then out of the tube 10 through the passage 22 into the duodenum or jejunum. The intubation device 11 may also be used as an aspirator to extract fluids such as duodenal jucies from the duodenum through the passage 22 and the tube for diagnostic studies.

Regardless of whether the intubation device 11 is used as a feeding device or as an aspirator, the removable connector 24 may be used to connect the tube 10 to either a source of nutrients or to a receptacle for delivery of the aspirated fluid. After the intubation device 11 has been inserted in the patient, the connector 24 may be removed, the sleeve may be completely withdrawn and the connector may be mounted again to the back end of the tube 10.

FIG. 3 shows a variant intubation device 34 having a plug 36 identical to the plug 12 except for an axial passage 38 extending therethrough that is in communication with a-tube 40. The tube 40 is identical to the tube 10 except for the omission of the radial passages 22. The intubation device 34 functions in the same manner as the intubation device 11 except for the fact that the fluid flows out of or into the front of the tube 40 by way of the axial passage 38 in the plug 36 instead of, or in addition to, by way of the radial passages 22.

FIG. 4 shows a variant plug 42 having a tapered blunt front end 44, a shank 46 extending rearwardly of the front end 44 and a bill 48 projecting rearwardly of the shank 46 that receives the tube 10.

I claim:

1. 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.

2. The device of claim 1 wherein said passage means comprises:

at least one radial passage extending through the tube.

3- 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.

4. The device of claim 1 wherein the plug has a rearwardly extending threaded tail that is received in the front of the tube.

5. The device of claim 4 wherein said collar extends about the threaded tail.

6. The device of claim 1 further comprisingi a funnel-shaped connector mounted to the back end of the tube.

7. 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 patients 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.

Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
US1736182 *12 déc. 192719 nov. 1929Wilkins James AStomach tube
US1899781 *27 avr. 193228 févr. 1933Twiss John RussellStomach tube or the like
US2356659 *27 oct. 194222 août 1944Paiva Aguiar Clovis DeNozzle for duodenal pump tubes
US3189031 *4 nov. 196315 juin 1965Andersen Prod H WGastrointestinal sump tube
Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US3861393 *17 oct. 197321 janv. 1975Herve DurandPenetrating device for surgical drainage
US3881254 *6 févr. 19746 mai 1975Epstein Louis CSaliva ejector
US3913565 *25 avr. 197421 oct. 1975Olympus Optical CoGuide tube for a treating instrument to be inserted into body cavity
US4045859 *12 mars 19766 sept. 1977Texas Medical Products, Inc.Method of making a suction wand
US4182342 *28 avr. 19788 janv. 1980Med-Pro, Ltd.Naso-gastric feeding device and method of inserting same
US4543089 *8 mars 198424 sept. 1985Gerald MossGastrointestinal feeding and aspirating device for use in treating patients
US4563171 *18 janv. 19857 janv. 1986Sherwood Medical CompanyMethod for displacing fluid in tubing
US4692152 *15 mars 19858 sept. 1987Fresnius AgMedical tube
US5049138 *13 nov. 198917 sept. 1991Boston Scientific CorporationCatheter with dissolvable tip
US5246430 *27 mars 199221 sept. 1993Taut, Inc.Reinforced cholangiogram catheter
US5263952 *25 mars 199223 nov. 1993SpectraneticsTwo-piece tip for fiber optic catheter
US5401257 *27 avr. 199328 mars 1995Boston Scientific CorporationUreteral stents, drainage tubes and the like
US5573521 *17 févr. 199512 nov. 1996Mcfarlane; Richard H.Reinforced cholangiogram catheter
US6423052 *18 août 200023 juil. 2002Endovascular Technologies, Inc.Torque absorbing catheter
US70257919 janv. 200311 avr. 2006Gi Dynamics, Inc.Bariatric sleeve
US71220582 déc. 200317 oct. 2006Gi Dynamics, Inc.Anti-obesity devices
US726769430 nov. 200411 sept. 2007Gi Dynamics, Inc.Bariatric sleeve
US732928530 nov. 200412 févr. 2008Gi Dynamics, Inc.Bariatric sleeve delivery devices
US734787530 nov. 200425 mars 2008Gi Dynamics, Inc.Methods of treatment using a bariatric sleeve
US74762561 juin 200413 janv. 2009Gi Dynamics, Inc.Intestinal sleeve
US760811413 déc. 200527 oct. 2009Gi Dynamics, Inc.Bariatric sleeve
US767806813 déc. 200516 mars 2010Gi Dynamics, Inc.Atraumatic delivery devices
US768233026 juil. 200623 mars 2010Gi Dynamics, Inc.Intestinal sleeve
US769544613 déc. 200513 avr. 2010Gi Dynamics, Inc.Methods of treatment using a bariatric sleeve
US775853511 déc. 200720 juil. 2010Gi Dynamics, Inc.Bariatric sleeve delivery devices
US77668612 oct. 20063 août 2010Gi Dynamics, Inc.Anti-obesity devices
US78155891 juin 200419 oct. 2010Gi Dynamics, Inc.Methods and apparatus for anchoring within the gastrointestinal tract
US781559116 sept. 200519 oct. 2010Gi Dynamics, Inc.Atraumatic gastrointestinal anchor
US783764314 févr. 200523 nov. 2010Gi Dynamics, Inc.Methods and devices for placing a gastrointestinal sleeve
US793507329 oct. 20073 mai 2011Gi Dynamics, Inc.Methods of treatment using a bariatric sleeve
US79764888 juin 200512 juil. 2011Gi Dynamics, Inc.Gastrointestinal anchor compliance
US79811638 janv. 201019 juil. 2011Gi Dynamics, Inc.Intestinal sleeve
US805742020 déc. 200715 nov. 2011Gi Dynamics, Inc.Gastrointestinal implant with drawstring
US806221213 mai 200522 nov. 2011Intuitive Surgical Operations, Inc.Steerable endoscope and improved method of insertion
US808387922 nov. 200627 déc. 2011Intuitive Surgical Operations, Inc.Non-metallic, multi-strand control cable for steerable instruments
US813730126 mai 200920 mars 2012Gi Dynamics, Inc.Bariatric sleeve
US816287126 mai 200924 avr. 2012Gi Dynamics, Inc.Bariatric sleeve
US818241825 févr. 200822 mai 2012Intuitive Surgical Operations, Inc.Systems and methods for articulating an elongate body
US821626025 août 200810 juil. 2012Usgi Medical, Inc.Apparatus and methods for forming and securing gastrointestinal tissue folds
US830366913 sept. 20106 nov. 2012Gi Dynamics, Inc.Methods and apparatus for anchoring within the gastrointestinal tract
US83610907 févr. 200829 janv. 2013Intuitive Surgical Operations, Inc.Apparatus and method for endoscopic colectomy
US84254512 juin 201123 avr. 2013Gi Dynamics, Inc.Gastrointestinal anchor compliance
US84861538 déc. 200616 juil. 2013Gi Dynamics, Inc.Anti-obesity devices
US851792319 mai 200427 août 2013Intuitive Surgical Operations, Inc.Apparatus and methods for facilitating treatment of tissue via improved delivery of energy based and non-energy based modalities
US856829918 mai 200729 oct. 2013Intuitive Surgical Operations, Inc.Methods and apparatus for displaying three-dimensional orientation of a steerable distal tip of an endoscope
US860864724 avr. 201217 déc. 2013Intuitive Surgical Operations, Inc.Systems and methods for articulating an elongate body
US862858314 sept. 201214 janv. 2014Gi Dynamics, Inc.Methods and apparatus for anchoring within the gastrointestinal tract
US864160228 juin 20124 févr. 2014Intuitive Surgical Operations, Inc.Steerable endoscope and improved method of insertion
US869669428 déc. 201215 avr. 2014Intuitive Surgical Operations, Inc.Apparatus and method for endoscopic colectomy
US872153011 juil. 201113 mai 2014Intuitive Surgical Operations, Inc.Tendon-driven endoscope and methods of use
US872690927 janv. 200620 mai 2014Usgi Medical, Inc.Methods and apparatus for revision of obesity procedures
US87712194 oct. 20118 juil. 2014Gi Dynamics, Inc.Gastrointestinal implant with drawstring
US880164721 févr. 200812 août 2014Gi Dynamics, Inc.Use of a gastrointestinal sleeve to treat bariatric surgery fistulas and leaks
US20120239061 *15 mars 201120 sept. 2012Mathur Sandip VEndoscopic full thickness gastric reduction apparatus and method
EP0266469A1 *7 nov. 198611 mai 1988SynthelaboOesophagus catheter
WO1991007200A1 *8 nov. 199030 mai 1991Boston Scient CorpCatheter with dissolvable tip
WO1992021398A1 *5 juin 199210 déc. 1992Taut IncUncollapsible catheter and methods
WO1995008362A1 *20 sept. 199330 mars 1995Taut IncReinforced cholangiogram catheter
Classifications
Classification aux États-Unis604/270
Classification internationaleA61J15/00
Classification coopérativeA61J15/00
Classification européenneA61J15/00