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Guide tube for gastrostomy tube placement
| Details |
Inventors: Buffington, C. A. Tony; Mauterer, John V.; Abood, Sarah K.;
Assignee: The Ohio State University (Columbus, OH)
Primary Examiner: Brittingham; Debra S.
Assistant Examiner:
Attorney, Agent or Firm: Foster; Frank H. Kremblas, Foster, Millard & Pollick
A hollow, rigid guide tube has a bend nearer to one end than the opposite end. The bent end of the guide tube is inserted through an animal's mouth and esophagus, and into its stomach. The bent end is pressed against the interior of the animal's stomach by manipulating the opposite end which extends out of the animal's mouth. A needle is pushed through the animal's skin and into the stomach end of the guide tube. A fiber is passed through the needle and into and through the whole guide tube. The fiber then extends from outside the animal's abdomen through the stomach wall, through the esophagus and out the animal's mouth. The guide tube and needle are removed and a gastrostomy tube is fastened to the mouth end of the fiber and is pulled into the stomach sidewall in the conventional manner. The guide tube preferably has an outwardly flared surface at one end and has an annular disk attached near the opposite end of the tube. |
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DETAILED DESCRIPTION FIG.
1 shows a preferred guide tube 10 which is approximately 40 cm in overall length and approximately 5 mm in tube outer diameter.
The guide tube 10 is preferably made of a hollow, cylindrically-shaped, thin-walled, stainless steel pipe.
The tube 10 can alternatively be made of plastic or other types of suitable metals and materials.
The tube 10 has an elbow 12 formed near one end.
The elbow 12 is a bend in the guide tube 10 forming an angled minor portion 14 of the tube 10.
The axis of the minor portion 14 of the guide tube 10 is angled with respect to the axis of a major portion 16 of the guide tube 10.
Preferably, the angle between the two axes is 45.
degree.
.
However, it is only necessary that a slight angle exist at some position along the length of the guide tube 10 in order for the guide tube 10 to function as described below.
The end of the guide tube 10 nearest the elbow 12 has an outwardly flared, bell-shaped end 18.
The flared end 18 is larger in diameter than the rest of the guide tube 10.
The surface of the flared end 18 is angled to direct objects which contact the inner surface of the flared end 18 into the interior of the guide tube 10.
An annular disk 20 may be attached to the exterior circumferential surface of the guide tube 10 near the end of the guide tube 10 farthest from the elbow 12.
The axis of the disk 20 is preferably coaxial with the axis of the major portion 16 of the guide tube 10.
A marking, preferably a notch 22 formed in the outer circumferential surface of the disk 20, is formed on the disk 20 to indicate the direction that the minor portion 14 of the guide tube 10 bends away from the major portion 16.
The guide tube 10 shown in FIG.
1 has the preferred dimensions and proportions to be used with an average sized cat.
FIG.
2 shows a different guide tube 30 inserted within an animal 32 in its preferred orientation during use.
The guide tube 30 shown in FIG.
2 appears identical to the guide tube 10 used in FIG.
1.
However, since the guide tube 30 is being used in a dog, it is most likely of larger dimensions, yet still proportioned to, the guide tube 10 which is for use with average sized cats
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